[build] vendor the parts of ICU we need

70 files changed, 48636 insertions, 0 deletions

diff --git a/vendor/icu/LICENSE b/vendor/icu/LICENSE
new file mode 100644
index 0000000000..25b6eb9d34
--- /dev/null
+++ b/vendor/icu/LICENSE
@@ -0,0 +1,414 @@
+COPYRIGHT AND PERMISSION NOTICE (ICU 58 and later)
+
+Copyright © 1991-2018 Unicode, Inc. All rights reserved.
+Distributed under the Terms of Use in http://www.unicode.org/copyright.html.
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of the Unicode data files and any associated documentation
+(the "Data Files") or Unicode software and any associated documentation
+(the "Software") to deal in the Data Files or Software
+without restriction, including without limitation the rights to use,
+copy, modify, merge, publish, distribute, and/or sell copies of
+the Data Files or Software, and to permit persons to whom the Data Files
+or Software are furnished to do so, provided that either
+(a) this copyright and permission notice appear with all copies
+of the Data Files or Software, or
+(b) this copyright and permission notice appear in associated
+Documentation.
+
+THE DATA FILES AND SOFTWARE ARE PROVIDED "AS IS", WITHOUT WARRANTY OF
+ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
+WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+NONINFRINGEMENT OF THIRD PARTY RIGHTS.
+IN NO EVENT SHALL THE COPYRIGHT HOLDER OR HOLDERS INCLUDED IN THIS
+NOTICE BE LIABLE FOR ANY CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL
+DAMAGES, OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
+DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+PERFORMANCE OF THE DATA FILES OR SOFTWARE.
+
+Except as contained in this notice, the name of a copyright holder
+shall not be used in advertising or otherwise to promote the sale,
+use or other dealings in these Data Files or Software without prior
+written authorization of the copyright holder.
+
+---------------------
+
+Third-Party Software Licenses
+
+This section contains third-party software notices and/or additional
+terms for licensed third-party software components included within ICU
+libraries.
+
+1. ICU License - ICU 1.8.1 to ICU 57.1
+
+COPYRIGHT AND PERMISSION NOTICE
+
+Copyright (c) 1995-2016 International Business Machines Corporation and others
+All rights reserved.
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+"Software"), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, and/or sell copies of the Software, and to permit persons
+to whom the Software is furnished to do so, provided that the above
+copyright notice(s) and this permission notice appear in all copies of
+the Software and that both the above copyright notice(s) and this
+permission notice appear in supporting documentation.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT
+OF THIRD PARTY RIGHTS. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+HOLDERS INCLUDED IN THIS NOTICE BE LIABLE FOR ANY CLAIM, OR ANY
+SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER
+RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF
+CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+Except as contained in this notice, the name of a copyright holder
+shall not be used in advertising or otherwise to promote the sale, use
+or other dealings in this Software without prior written authorization
+of the copyright holder.
+
+All trademarks and registered trademarks mentioned herein are the
+property of their respective owners.
+
+2. Chinese/Japanese Word Break Dictionary Data (cjdict.txt)
+
+ #     The Google Chrome software developed by Google is licensed under
+ # the BSD license. Other software included in this distribution is
+ # provided under other licenses, as set forth below.
+ #
+ #  The BSD License
+ #  http://opensource.org/licenses/bsd-license.php
+ #  Copyright (C) 2006-2008, Google Inc.
+ #
+ #  All rights reserved.
+ #
+ #  Redistribution and use in source and binary forms, with or without
+ # modification, are permitted provided that the following conditions are met:
+ #
+ #  Redistributions of source code must retain the above copyright notice,
+ # this list of conditions and the following disclaimer.
+ #  Redistributions in binary form must reproduce the above
+ # copyright notice, this list of conditions and the following
+ # disclaimer in the documentation and/or other materials provided with
+ # the distribution.
+ #  Neither the name of  Google Inc. nor the names of its
+ # contributors may be used to endorse or promote products derived from
+ # this software without specific prior written permission.
+ #
+ #
+ #  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
+ # CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
+ # INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ # MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ # DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ # LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ # CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ # SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
+ # BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ # LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ # NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ # SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ #
+ #
+ #  The word list in cjdict.txt are generated by combining three word lists
+ # listed below with further processing for compound word breaking. The
+ # frequency is generated with an iterative training against Google web
+ # corpora.
+ #
+ #  * Libtabe (Chinese)
+ #    - https://sourceforge.net/project/?group_id=1519
+ #    - Its license terms and conditions are shown below.
+ #
+ #  * IPADIC (Japanese)
+ #    - http://chasen.aist-nara.ac.jp/chasen/distribution.html
+ #    - Its license terms and conditions are shown below.
+ #
+ #  ---------COPYING.libtabe ---- BEGIN--------------------
+ #
+ #  /*
+ #   * Copyright (c) 1999 TaBE Project.
+ #   * Copyright (c) 1999 Pai-Hsiang Hsiao.
+ #   * All rights reserved.
+ #   *
+ #   * Redistribution and use in source and binary forms, with or without
+ #   * modification, are permitted provided that the following conditions
+ #   * are met:
+ #   *
+ #   * . Redistributions of source code must retain the above copyright
+ #   *   notice, this list of conditions and the following disclaimer.
+ #   * . Redistributions in binary form must reproduce the above copyright
+ #   *   notice, this list of conditions and the following disclaimer in
+ #   *   the documentation and/or other materials provided with the
+ #   *   distribution.
+ #   * . Neither the name of the TaBE Project nor the names of its
+ #   *   contributors may be used to endorse or promote products derived
+ #   *   from this software without specific prior written permission.
+ #   *
+ #   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ #   * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ #   * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ #   * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ #   * REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ #   * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ #   * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ #   * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ #   * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ #   * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ #   * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ #   * OF THE POSSIBILITY OF SUCH DAMAGE.
+ #   */
+ #
+ #  /*
+ #   * Copyright (c) 1999 Computer Systems and Communication Lab,
+ #   *                    Institute of Information Science, Academia
+ #       *                    Sinica. All rights reserved.
+ #   *
+ #   * Redistribution and use in source and binary forms, with or without
+ #   * modification, are permitted provided that the following conditions
+ #   * are met:
+ #   *
+ #   * . Redistributions of source code must retain the above copyright
+ #   *   notice, this list of conditions and the following disclaimer.
+ #   * . Redistributions in binary form must reproduce the above copyright
+ #   *   notice, this list of conditions and the following disclaimer in
+ #   *   the documentation and/or other materials provided with the
+ #   *   distribution.
+ #   * . Neither the name of the Computer Systems and Communication Lab
+ #   *   nor the names of its contributors may be used to endorse or
+ #   *   promote products derived from this software without specific
+ #   *   prior written permission.
+ #   *
+ #   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ #   * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ #   * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ #   * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ #   * REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ #   * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ #   * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ #   * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ #   * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ #   * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ #   * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ #   * OF THE POSSIBILITY OF SUCH DAMAGE.
+ #   */
+ #
+ #  Copyright 1996 Chih-Hao Tsai @ Beckman Institute,
+ #      University of Illinois
+ #  c-tsai4@uiuc.edu  http://casper.beckman.uiuc.edu/~c-tsai4
+ #
+ #  ---------------COPYING.libtabe-----END--------------------------------
+ #
+ #
+ #  ---------------COPYING.ipadic-----BEGIN-------------------------------
+ #
+ #  Copyright 2000, 2001, 2002, 2003 Nara Institute of Science
+ #  and Technology.  All Rights Reserved.
+ #
+ #  Use, reproduction, and distribution of this software is permitted.
+ #  Any copy of this software, whether in its original form or modified,
+ #  must include both the above copyright notice and the following
+ #  paragraphs.
+ #
+ #  Nara Institute of Science and Technology (NAIST),
+ #  the copyright holders, disclaims all warranties with regard to this
+ #  software, including all implied warranties of merchantability and
+ #  fitness, in no event shall NAIST be liable for
+ #  any special, indirect or consequential damages or any damages
+ #  whatsoever resulting from loss of use, data or profits, whether in an
+ #  action of contract, negligence or other tortuous action, arising out
+ #  of or in connection with the use or performance of this software.
+ #
+ #  A large portion of the dictionary entries
+ #  originate from ICOT Free Software.  The following conditions for ICOT
+ #  Free Software applies to the current dictionary as well.
+ #
+ #  Each User may also freely distribute the Program, whether in its
+ #  original form or modified, to any third party or parties, PROVIDED
+ #  that the provisions of Section 3 ("NO WARRANTY") will ALWAYS appear
+ #  on, or be attached to, the Program, which is distributed substantially
+ #  in the same form as set out herein and that such intended
+ #  distribution, if actually made, will neither violate or otherwise
+ #  contravene any of the laws and regulations of the countries having
+ #  jurisdiction over the User or the intended distribution itself.
+ #
+ #  NO WARRANTY
+ #
+ #  The program was produced on an experimental basis in the course of the
+ #  research and development conducted during the project and is provided
+ #  to users as so produced on an experimental basis.  Accordingly, the
+ #  program is provided without any warranty whatsoever, whether express,
+ #  implied, statutory or otherwise.  The term "warranty" used herein
+ #  includes, but is not limited to, any warranty of the quality,
+ #  performance, merchantability and fitness for a particular purpose of
+ #  the program and the nonexistence of any infringement or violation of
+ #  any right of any third party.
+ #
+ #  Each user of the program will agree and understand, and be deemed to
+ #  have agreed and understood, that there is no warranty whatsoever for
+ #  the program and, accordingly, the entire risk arising from or
+ #  otherwise connected with the program is assumed by the user.
+ #
+ #  Therefore, neither ICOT, the copyright holder, or any other
+ #  organization that participated in or was otherwise related to the
+ #  development of the program and their respective officials, directors,
+ #  officers and other employees shall be held liable for any and all
+ #  damages, including, without limitation, general, special, incidental
+ #  and consequential damages, arising out of or otherwise in connection
+ #  with the use or inability to use the program or any product, material
+ #  or result produced or otherwise obtained by using the program,
+ #  regardless of whether they have been advised of, or otherwise had
+ #  knowledge of, the possibility of such damages at any time during the
+ #  project or thereafter.  Each user will be deemed to have agreed to the
+ #  foregoing by his or her commencement of use of the program.  The term
+ #  "use" as used herein includes, but is not limited to, the use,
+ #  modification, copying and distribution of the program and the
+ #  production of secondary products from the program.
+ #
+ #  In the case where the program, whether in its original form or
+ #  modified, was distributed or delivered to or received by a user from
+ #  any person, organization or entity other than ICOT, unless it makes or
+ #  grants independently of ICOT any specific warranty to the user in
+ #  writing, such person, organization or entity, will also be exempted
+ #  from and not be held liable to the user for any such damages as noted
+ #  above as far as the program is concerned.
+ #
+ #  ---------------COPYING.ipadic-----END----------------------------------
+
+3. Lao Word Break Dictionary Data (laodict.txt)
+
+ #  Copyright (c) 2013 International Business Machines Corporation
+ #  and others. All Rights Reserved.
+ #
+ # Project: http://code.google.com/p/lao-dictionary/
+ # Dictionary: http://lao-dictionary.googlecode.com/git/Lao-Dictionary.txt
+ # License: http://lao-dictionary.googlecode.com/git/Lao-Dictionary-LICENSE.txt
+ #              (copied below)
+ #
+ #  This file is derived from the above dictionary, with slight
+ #  modifications.
+ #  ----------------------------------------------------------------------
+ #  Copyright (C) 2013 Brian Eugene Wilson, Robert Martin Campbell.
+ #  All rights reserved.
+ #
+ #  Redistribution and use in source and binary forms, with or without
+ #  modification,
+ #  are permitted provided that the following conditions are met:
+ #
+ #
+ # Redistributions of source code must retain the above copyright notice, this
+ #  list of conditions and the following disclaimer. Redistributions in
+ #  binary form must reproduce the above copyright notice, this list of
+ #  conditions and the following disclaimer in the documentation and/or
+ #  other materials provided with the distribution.
+ #
+ #
+ # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ # "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ # LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ # FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ # COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
+ # INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ # (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ # SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ # HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ # STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ # ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ # OF THE POSSIBILITY OF SUCH DAMAGE.
+ #  --------------------------------------------------------------------------
+
+4. Burmese Word Break Dictionary Data (burmesedict.txt)
+
+ #  Copyright (c) 2014 International Business Machines Corporation
+ #  and others. All Rights Reserved.
+ #
+ #  This list is part of a project hosted at:
+ #    github.com/kanyawtech/myanmar-karen-word-lists
+ #
+ #  --------------------------------------------------------------------------
+ #  Copyright (c) 2013, LeRoy Benjamin Sharon
+ #  All rights reserved.
+ #
+ #  Redistribution and use in source and binary forms, with or without
+ #  modification, are permitted provided that the following conditions
+ #  are met: Redistributions of source code must retain the above
+ #  copyright notice, this list of conditions and the following
+ #  disclaimer.  Redistributions in binary form must reproduce the
+ #  above copyright notice, this list of conditions and the following
+ #  disclaimer in the documentation and/or other materials provided
+ #  with the distribution.
+ #
+ #    Neither the name Myanmar Karen Word Lists, nor the names of its
+ #    contributors may be used to endorse or promote products derived
+ #    from this software without specific prior written permission.
+ #
+ #  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
+ #  CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
+ #  INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ #  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ #  DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS
+ #  BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ #  EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
+ #  TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ #  DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ #  ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
+ #  TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
+ #  THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ #  SUCH DAMAGE.
+ #  --------------------------------------------------------------------------
+
+5. Time Zone Database
+
+  ICU uses the public domain data and code derived from Time Zone
+Database for its time zone support. The ownership of the TZ database
+is explained in BCP 175: Procedure for Maintaining the Time Zone
+Database section 7.
+
+ # 7.  Database Ownership
+ #
+ #    The TZ database itself is not an IETF Contribution or an IETF
+ #    document.  Rather it is a pre-existing and regularly updated work
+ #    that is in the public domain, and is intended to remain in the
+ #    public domain.  Therefore, BCPs 78 [RFC5378] and 79 [RFC3979] do
+ #    not apply to the TZ Database or contributions that individuals make
+ #    to it.  Should any claims be made and substantiated against the TZ
+ #    Database, the organization that is providing the IANA
+ #    Considerations defined in this RFC, under the memorandum of
+ #    understanding with the IETF, currently ICANN, may act in accordance
+ #    with all competent court orders.  No ownership claims will be made
+ #    by ICANN or the IETF Trust on the database or the code.  Any person
+ #    making a contribution to the database or code waives all rights to
+ #    future claims in that contribution or in the TZ Database.
+
+6. Google double-conversion
+
+Copyright 2006-2011, the V8 project authors. All rights reserved.
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are
+met:
+
+    * Redistributions of source code must retain the above copyright
+      notice, this list of conditions and the following disclaimer.
+    * Redistributions in binary form must reproduce the above
+      copyright notice, this list of conditions and the following
+      disclaimer in the documentation and/or other materials provided
+      with the distribution.
+    * Neither the name of Google Inc. nor the names of its
+      contributors may be used to endorse or promote products derived
+      from this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
diff --git a/vendor/icu/include/unicode/bytestream.h b/vendor/icu/include/unicode/bytestream.h
new file mode 100644
index 0000000000..8c03acd638
--- /dev/null
+++ b/vendor/icu/include/unicode/bytestream.h
@@ -0,0 +1,272 @@
+// © 2016 and later: Unicode, Inc. and others.
+// License & terms of use: http://www.unicode.org/copyright.html
+// Copyright (C) 2009-2012, International Business Machines
+// Corporation and others. All Rights Reserved.
+//
+// Copyright 2007 Google Inc. All Rights Reserved.
+// Author: sanjay@google.com (Sanjay Ghemawat)
+//
+// Abstract interface that consumes a sequence of bytes (ByteSink).
+//
+// Used so that we can write a single piece of code that can operate
+// on a variety of output string types.
+//
+// Various implementations of this interface are provided:
+//   ByteSink:
+//      CheckedArrayByteSink    Write to a flat array, with bounds checking
+//      StringByteSink          Write to an STL string
+
+// This code is a contribution of Google code, and the style used here is
+// a compromise between the original Google code and the ICU coding guidelines.
+// For example, data types are ICU-ified (size_t,int->int32_t),
+// and API comments doxygen-ified, but function names and behavior are
+// as in the original, if possible.
+// Assertion-style error handling, not available in ICU, was changed to
+// parameter "pinning" similar to UnicodeString.
+//
+// In addition, this is only a partial port of the original Google code,
+// limited to what was needed so far. The (nearly) complete original code
+// is in the ICU svn repository at icuhtml/trunk/design/strings/contrib
+// (see ICU ticket 6765, r25517).
+
+#ifndef __BYTESTREAM_H__
+#define __BYTESTREAM_H__
+
+/**
+ * \file
+ * \brief C++ API: Interface for writing bytes, and implementation classes.
+ */
+
+#include <unicode/utypes.h>
+#include <unicode/uobject.h>
+#include <unicode/std_string.h>
+
+U_NAMESPACE_BEGIN
+
+/**
+ * A ByteSink can be filled with bytes.
+ * @stable ICU 4.2
+ */
+class U_COMMON_API ByteSink : public UMemory {
+public:
+  /**
+   * Default constructor.
+   * @stable ICU 4.2
+   */
+  ByteSink() { }
+  /**
+   * Virtual destructor.
+   * @stable ICU 4.2
+   */
+  virtual ~ByteSink();
+
+  /**
+   * Append "bytes[0,n-1]" to this.
+   * @param bytes the pointer to the bytes
+   * @param n the number of bytes; must be non-negative
+   * @stable ICU 4.2
+   */
+  virtual void Append(const char* bytes, int32_t n) = 0;
+
+  /**
+   * Returns a writable buffer for appending and writes the buffer's capacity to
+   * *result_capacity. Guarantees *result_capacity>=min_capacity.
+   * May return a pointer to the caller-owned scratch buffer which must have
+   * scratch_capacity>=min_capacity.
+   * The returned buffer is only valid until the next operation
+   * on this ByteSink.
+   *
+   * After writing at most *result_capacity bytes, call Append() with the
+   * pointer returned from this function and the number of bytes written.
+   * Many Append() implementations will avoid copying bytes if this function
+   * returned an internal buffer.
+   *
+   * Partial usage example:
+   *  int32_t capacity;
+   *  char* buffer = sink->GetAppendBuffer(..., &capacity);
+   *  ... Write n bytes into buffer, with n <= capacity.
+   *  sink->Append(buffer, n);
+   * In many implementations, that call to Append will avoid copying bytes.
+   *
+   * If the ByteSink allocates or reallocates an internal buffer, it should use
+   * the desired_capacity_hint if appropriate.
+   * If a caller cannot provide a reasonable guess at the desired capacity,
+   * it should pass desired_capacity_hint=0.
+   *
+   * If a non-scratch buffer is returned, the caller may only pass
+   * a prefix to it to Append().
+   * That is, it is not correct to pass an interior pointer to Append().
+   *
+   * The default implementation always returns the scratch buffer.
+   *
+   * @param min_capacity required minimum capacity of the returned buffer;
+   *                     must be non-negative
+   * @param desired_capacity_hint desired capacity of the returned buffer;
+   *                              must be non-negative
+   * @param scratch default caller-owned buffer
+   * @param scratch_capacity capacity of the scratch buffer
+   * @param result_capacity pointer to an integer which will be set to the
+   *                        capacity of the returned buffer
+   * @return a buffer with *result_capacity>=min_capacity
+   * @stable ICU 4.2
+   */
+  virtual char* GetAppendBuffer(int32_t min_capacity,
+                                int32_t desired_capacity_hint,
+                                char* scratch, int32_t scratch_capacity,
+                                int32_t* result_capacity);
+
+  /**
+   * Flush internal buffers.
+   * Some byte sinks use internal buffers or provide buffering
+   * and require calling Flush() at the end of the stream.
+   * The ByteSink should be ready for further Append() calls after Flush().
+   * The default implementation of Flush() does nothing.
+   * @stable ICU 4.2
+   */
+  virtual void Flush();
+
+private:
+  ByteSink(const ByteSink &) = delete;
+  ByteSink &operator=(const ByteSink &) = delete;
+};
+
+// -------------------------------------------------------------
+// Some standard implementations
+
+/** 
+ * Implementation of ByteSink that writes to a flat byte array,
+ * with bounds-checking:
+ * This sink will not write more than capacity bytes to outbuf.
+ * If more than capacity bytes are Append()ed, then excess bytes are ignored,
+ * and Overflowed() will return true.
+ * Overflow does not cause a runtime error.
+ * @stable ICU 4.2
+ */
+class U_COMMON_API CheckedArrayByteSink : public ByteSink {
+public:
+  /**
+   * Constructs a ByteSink that will write to outbuf[0..capacity-1].
+   * @param outbuf buffer to write to
+   * @param capacity size of the buffer
+   * @stable ICU 4.2
+   */
+  CheckedArrayByteSink(char* outbuf, int32_t capacity);
+  /**
+   * Destructor.
+   * @stable ICU 4.2
+   */
+  virtual ~CheckedArrayByteSink();
+  /**
+   * Returns the sink to its original state, without modifying the buffer.
+   * Useful for reusing both the buffer and the sink for multiple streams.
+   * Resets the state to NumberOfBytesWritten()=NumberOfBytesAppended()=0
+   * and Overflowed()=FALSE.
+   * @return *this
+   * @stable ICU 4.6
+   */
+  virtual CheckedArrayByteSink& Reset();
+  /**
+   * Append "bytes[0,n-1]" to this.
+   * @param bytes the pointer to the bytes
+   * @param n the number of bytes; must be non-negative
+   * @stable ICU 4.2
+   */
+  virtual void Append(const char* bytes, int32_t n);
+  /**
+   * Returns a writable buffer for appending and writes the buffer's capacity to
+   * *result_capacity. For details see the base class documentation.
+   * @param min_capacity required minimum capacity of the returned buffer;
+   *                     must be non-negative
+   * @param desired_capacity_hint desired capacity of the returned buffer;
+   *                              must be non-negative
+   * @param scratch default caller-owned buffer
+   * @param scratch_capacity capacity of the scratch buffer
+   * @param result_capacity pointer to an integer which will be set to the
+   *                        capacity of the returned buffer
+   * @return a buffer with *result_capacity>=min_capacity
+   * @stable ICU 4.2
+   */
+  virtual char* GetAppendBuffer(int32_t min_capacity,
+                                int32_t desired_capacity_hint,
+                                char* scratch, int32_t scratch_capacity,
+                                int32_t* result_capacity);
+  /**
+   * Returns the number of bytes actually written to the sink.
+   * @return number of bytes written to the buffer
+   * @stable ICU 4.2
+   */
+  int32_t NumberOfBytesWritten() const { return size_; }
+  /**
+   * Returns true if any bytes were discarded, i.e., if there was an
+   * attempt to write more than 'capacity' bytes.
+   * @return TRUE if more than 'capacity' bytes were Append()ed
+   * @stable ICU 4.2
+   */
+  UBool Overflowed() const { return overflowed_; }
+  /**
+   * Returns the number of bytes appended to the sink.
+   * If Overflowed() then NumberOfBytesAppended()>NumberOfBytesWritten()
+   * else they return the same number.
+   * @return number of bytes written to the buffer
+   * @stable ICU 4.6
+   */
+  int32_t NumberOfBytesAppended() const { return appended_; }
+private:
+  char* outbuf_;
+  const int32_t capacity_;
+  int32_t size_;
+  int32_t appended_;
+  UBool overflowed_;
+
+  CheckedArrayByteSink() = delete;
+  CheckedArrayByteSink(const CheckedArrayByteSink &) = delete;
+  CheckedArrayByteSink &operator=(const CheckedArrayByteSink &) = delete;
+};
+
+/** 
+ * Implementation of ByteSink that writes to a "string".
+ * The StringClass is usually instantiated with a std::string.
+ * @stable ICU 4.2
+ */
+template<typename StringClass>
+class StringByteSink : public ByteSink {
+ public:
+  /**
+   * Constructs a ByteSink that will append bytes to the dest string.
+   * @param dest pointer to string object to append to
+   * @stable ICU 4.2
+   */
+  StringByteSink(StringClass* dest) : dest_(dest) { }
+#ifndef U_HIDE_DRAFT_API
+  /**
+   * Constructs a ByteSink that reserves append capacity and will append bytes to the dest string.
+   * 
+   * @param dest pointer to string object to append to
+   * @param initialAppendCapacity capacity beyond dest->length() to be reserve()d
+   * @draft ICU 60
+   */
+  StringByteSink(StringClass* dest, int32_t initialAppendCapacity) : dest_(dest) {
+    if (initialAppendCapacity > 0 &&
+        (uint32_t)initialAppendCapacity > (dest->capacity() - dest->length())) {
+      dest->reserve(dest->length() + initialAppendCapacity);
+    }
+  }
+#endif  // U_HIDE_DRAFT_API
+  /**
+   * Append "bytes[0,n-1]" to this.
+   * @param data the pointer to the bytes
+   * @param n the number of bytes; must be non-negative
+   * @stable ICU 4.2
+   */
+  virtual void Append(const char* data, int32_t n) { dest_->append(data, n); }
+ private:
+  StringClass* dest_;
+
+  StringByteSink() = delete;
+  StringByteSink(const StringByteSink &) = delete;
+  StringByteSink &operator=(const StringByteSink &) = delete;
+};
+
+U_NAMESPACE_END
+
+#endif  // __BYTESTREAM_H__
diff --git a/vendor/icu/include/unicode/char16ptr.h b/vendor/icu/include/unicode/char16ptr.h
new file mode 100644
index 0000000000..bb6b5fec31
--- /dev/null
+++ b/vendor/icu/include/unicode/char16ptr.h
@@ -0,0 +1,302 @@
+// © 2017 and later: Unicode, Inc. and others.
+// License & terms of use: http://www.unicode.org/copyright.html
+
+// char16ptr.h
+// created: 2017feb28 Markus W. Scherer
+
+#ifndef __CHAR16PTR_H__
+#define __CHAR16PTR_H__
+
+#include <cstddef>
+#include <unicode/utypes.h>
+
+/**
+ * \file
+ * \brief C++ API: char16_t pointer wrappers with
+ *        implicit conversion from bit-compatible raw pointer types.
+ *        Also conversion functions from char16_t * to UChar * and OldUChar *.
+ */
+
+U_NAMESPACE_BEGIN
+
+/**
+ * \def U_ALIASING_BARRIER
+ * Barrier for pointer anti-aliasing optimizations even across function boundaries.
+ * @internal
+ */
+#ifdef U_ALIASING_BARRIER
+    // Use the predefined value.
+#elif (defined(__clang__) || defined(__GNUC__)) && U_PLATFORM != U_PF_BROWSER_NATIVE_CLIENT
+#   define U_ALIASING_BARRIER(ptr) asm volatile("" : : "rm"(ptr) : "memory")
+#endif
+
+/**
+ * char16_t * wrapper with implicit conversion from distinct but bit-compatible pointer types.
+ * @stable ICU 59
+ */
+class U_COMMON_API Char16Ptr U_FINAL {
+public:
+    /**
+     * Copies the pointer.
+     * @param p pointer
+     * @stable ICU 59
+     */
+    inline Char16Ptr(char16_t *p);
+#if !U_CHAR16_IS_TYPEDEF
+    /**
+     * Converts the pointer to char16_t *.
+     * @param p pointer to be converted
+     * @stable ICU 59
+     */
+    inline Char16Ptr(uint16_t *p);
+#endif
+#if U_SIZEOF_WCHAR_T==2 || defined(U_IN_DOXYGEN)
+    /**
+     * Converts the pointer to char16_t *.
+     * (Only defined if U_SIZEOF_WCHAR_T==2.)
+     * @param p pointer to be converted
+     * @stable ICU 59
+     */
+    inline Char16Ptr(wchar_t *p);
+#endif
+    /**
+     * nullptr constructor.
+     * @param p nullptr
+     * @stable ICU 59
+     */
+    inline Char16Ptr(std::nullptr_t p);
+    /**
+     * Destructor.
+     * @stable ICU 59
+     */
+    inline ~Char16Ptr();
+
+    /**
+     * Pointer access.
+     * @return the wrapped pointer
+     * @stable ICU 59
+     */
+    inline char16_t *get() const;
+    /**
+     * char16_t pointer access via type conversion (e.g., static_cast).
+     * @return the wrapped pointer
+     * @stable ICU 59
+     */
+    inline operator char16_t *() const { return get(); }
+
+private:
+    Char16Ptr() = delete;
+
+#ifdef U_ALIASING_BARRIER
+    template<typename T> static char16_t *cast(T *t) {
+        U_ALIASING_BARRIER(t);
+        return reinterpret_cast<char16_t *>(t);
+    }
+
+    char16_t *p_;
+#else
+    union {
+        char16_t *cp;
+        uint16_t *up;
+        wchar_t *wp;
+    } u_;
+#endif
+};
+
+#ifdef U_ALIASING_BARRIER
+
+Char16Ptr::Char16Ptr(char16_t *p) : p_(p) {}
+#if !U_CHAR16_IS_TYPEDEF
+Char16Ptr::Char16Ptr(uint16_t *p) : p_(cast(p)) {}
+#endif
+#if U_SIZEOF_WCHAR_T==2
+Char16Ptr::Char16Ptr(wchar_t *p) : p_(cast(p)) {}
+#endif
+Char16Ptr::Char16Ptr(std::nullptr_t p) : p_(p) {}
+Char16Ptr::~Char16Ptr() {
+    U_ALIASING_BARRIER(p_);
+}
+
+char16_t *Char16Ptr::get() const { return p_; }
+
+#else
+
+Char16Ptr::Char16Ptr(char16_t *p) { u_.cp = p; }
+#if !U_CHAR16_IS_TYPEDEF
+Char16Ptr::Char16Ptr(uint16_t *p) { u_.up = p; }
+#endif
+#if U_SIZEOF_WCHAR_T==2
+Char16Ptr::Char16Ptr(wchar_t *p) { u_.wp = p; }
+#endif
+Char16Ptr::Char16Ptr(std::nullptr_t p) { u_.cp = p; }
+Char16Ptr::~Char16Ptr() {}
+
+char16_t *Char16Ptr::get() const { return u_.cp; }
+
+#endif
+
+/**
+ * const char16_t * wrapper with implicit conversion from distinct but bit-compatible pointer types.
+ * @stable ICU 59
+ */
+class U_COMMON_API ConstChar16Ptr U_FINAL {
+public:
+    /**
+     * Copies the pointer.
+     * @param p pointer
+     * @stable ICU 59
+     */
+    inline ConstChar16Ptr(const char16_t *p);
+#if !U_CHAR16_IS_TYPEDEF
+    /**
+     * Converts the pointer to char16_t *.
+     * @param p pointer to be converted
+     * @stable ICU 59
+     */
+    inline ConstChar16Ptr(const uint16_t *p);
+#endif
+#if U_SIZEOF_WCHAR_T==2 || defined(U_IN_DOXYGEN)
+    /**
+     * Converts the pointer to char16_t *.
+     * (Only defined if U_SIZEOF_WCHAR_T==2.)
+     * @param p pointer to be converted
+     * @stable ICU 59
+     */
+    inline ConstChar16Ptr(const wchar_t *p);
+#endif
+    /**
+     * nullptr constructor.
+     * @param p nullptr
+     * @stable ICU 59
+     */
+    inline ConstChar16Ptr(const std::nullptr_t p);
+
+    /**
+     * Destructor.
+     * @stable ICU 59
+     */
+    inline ~ConstChar16Ptr();
+
+    /**
+     * Pointer access.
+     * @return the wrapped pointer
+     * @stable ICU 59
+     */
+    inline const char16_t *get() const;
+    /**
+     * char16_t pointer access via type conversion (e.g., static_cast).
+     * @return the wrapped pointer
+     * @stable ICU 59
+     */
+    inline operator const char16_t *() const { return get(); }
+
+private:
+    ConstChar16Ptr() = delete;
+
+#ifdef U_ALIASING_BARRIER
+    template<typename T> static const char16_t *cast(const T *t) {
+        U_ALIASING_BARRIER(t);
+        return reinterpret_cast<const char16_t *>(t);
+    }
+
+    const char16_t *p_;
+#else
+    union {
+        const char16_t *cp;
+        const uint16_t *up;
+        const wchar_t *wp;
+    } u_;
+#endif
+};
+
+#ifdef U_ALIASING_BARRIER
+
+ConstChar16Ptr::ConstChar16Ptr(const char16_t *p) : p_(p) {}
+#if !U_CHAR16_IS_TYPEDEF
+ConstChar16Ptr::ConstChar16Ptr(const uint16_t *p) : p_(cast(p)) {}
+#endif
+#if U_SIZEOF_WCHAR_T==2
+ConstChar16Ptr::ConstChar16Ptr(const wchar_t *p) : p_(cast(p)) {}
+#endif
+ConstChar16Ptr::ConstChar16Ptr(const std::nullptr_t p) : p_(p) {}
+ConstChar16Ptr::~ConstChar16Ptr() {
+    U_ALIASING_BARRIER(p_);
+}
+
+const char16_t *ConstChar16Ptr::get() const { return p_; }
+
+#else
+
+ConstChar16Ptr::ConstChar16Ptr(const char16_t *p) { u_.cp = p; }
+#if !U_CHAR16_IS_TYPEDEF
+ConstChar16Ptr::ConstChar16Ptr(const uint16_t *p) { u_.up = p; }
+#endif
+#if U_SIZEOF_WCHAR_T==2
+ConstChar16Ptr::ConstChar16Ptr(const wchar_t *p) { u_.wp = p; }
+#endif
+ConstChar16Ptr::ConstChar16Ptr(const std::nullptr_t p) { u_.cp = p; }
+ConstChar16Ptr::~ConstChar16Ptr() {}
+
+const char16_t *ConstChar16Ptr::get() const { return u_.cp; }
+
+#endif
+
+/**
+ * Converts from const char16_t * to const UChar *.
+ * Includes an aliasing barrier if available.
+ * @param p pointer
+ * @return p as const UChar *
+ * @stable ICU 59
+ */
+inline const UChar *toUCharPtr(const char16_t *p) {
+#ifdef U_ALIASING_BARRIER
+    U_ALIASING_BARRIER(p);
+#endif
+    return reinterpret_cast<const UChar *>(p);
+}
+
+/**
+ * Converts from char16_t * to UChar *.
+ * Includes an aliasing barrier if available.
+ * @param p pointer
+ * @return p as UChar *
+ * @stable ICU 59
+ */
+inline UChar *toUCharPtr(char16_t *p) {
+#ifdef U_ALIASING_BARRIER
+    U_ALIASING_BARRIER(p);
+#endif
+    return reinterpret_cast<UChar *>(p);
+}
+
+/**
+ * Converts from const char16_t * to const OldUChar *.
+ * Includes an aliasing barrier if available.
+ * @param p pointer
+ * @return p as const OldUChar *
+ * @stable ICU 59
+ */
+inline const OldUChar *toOldUCharPtr(const char16_t *p) {
+#ifdef U_ALIASING_BARRIER
+    U_ALIASING_BARRIER(p);
+#endif
+    return reinterpret_cast<const OldUChar *>(p);
+}
+
+/**
+ * Converts from char16_t * to OldUChar *.
+ * Includes an aliasing barrier if available.
+ * @param p pointer
+ * @return p as OldUChar *
+ * @stable ICU 59
+ */
+inline OldUChar *toOldUCharPtr(char16_t *p) {
+#ifdef U_ALIASING_BARRIER
+    U_ALIASING_BARRIER(p);
+#endif
+    return reinterpret_cast<OldUChar *>(p);
+}
+
+U_NAMESPACE_END
+
+#endif  // __CHAR16PTR_H__
diff --git a/vendor/icu/include/unicode/localpointer.h b/vendor/icu/include/unicode/localpointer.h
new file mode 100644
index 0000000000..d981943d52
--- /dev/null
+++ b/vendor/icu/include/unicode/localpointer.h
@@ -0,0 +1,524 @@
+// © 2016 and later: Unicode, Inc. and others.
+// License & terms of use: http://www.unicode.org/copyright.html
+/*
+*******************************************************************************
+*
+*   Copyright (C) 2009-2016, International Business Machines
+*   Corporation and others.  All Rights Reserved.
+*
+*******************************************************************************
+*   file name:  localpointer.h
+*   encoding:   UTF-8
+*   tab size:   8 (not used)
+*   indentation:4
+*
+*   created on: 2009nov13
+*   created by: Markus W. Scherer
+*/
+
+#ifndef __LOCALPOINTER_H__
+#define __LOCALPOINTER_H__
+
+/**
+ * \file
+ * \brief C++ API: "Smart pointers" for use with and in ICU4C C++ code.
+ *
+ * These classes are inspired by
+ * - std::auto_ptr
+ * - boost::scoped_ptr & boost::scoped_array
+ * - Taligent Safe Pointers (TOnlyPointerTo)
+ *
+ * but none of those provide for all of the goals for ICU smart pointers:
+ * - Smart pointer owns the object and releases it when it goes out of scope.
+ * - No transfer of ownership via copy/assignment to reduce misuse. Simpler & more robust.
+ * - ICU-compatible: No exceptions.
+ * - Need to be able to orphan/release the pointer and its ownership.
+ * - Need variants for normal C++ object pointers, C++ arrays, and ICU C service objects.
+ *
+ * For details see http://site.icu-project.org/design/cpp/scoped_ptr
+ */
+
+#include <unicode/utypes.h>
+
+#if U_SHOW_CPLUSPLUS_API
+
+U_NAMESPACE_BEGIN
+
+/**
+ * "Smart pointer" base class; do not use directly: use LocalPointer etc.
+ *
+ * Base class for smart pointer classes that do not throw exceptions.
+ *
+ * Do not use this base class directly, since it does not delete its pointer.
+ * A subclass must implement methods that delete the pointer:
+ * Destructor and adoptInstead().
+ *
+ * There is no operator T *() provided because the programmer must decide
+ * whether to use getAlias() (without transfer of ownership) or orphan()
+ * (with transfer of ownership and NULLing of the pointer).
+ *
+ * @see LocalPointer
+ * @see LocalArray
+ * @see U_DEFINE_LOCAL_OPEN_POINTER
+ * @stable ICU 4.4
+ */
+template<typename T>
+class LocalPointerBase {
+public:
+    /**
+     * Constructor takes ownership.
+     * @param p simple pointer to an object that is adopted
+     * @stable ICU 4.4
+     */
+    explicit LocalPointerBase(T *p=NULL) : ptr(p) {}
+    /**
+     * Destructor deletes the object it owns.
+     * Subclass must override: Base class does nothing.
+     * @stable ICU 4.4
+     */
+    ~LocalPointerBase() { /* delete ptr; */ }
+    /**
+     * NULL check.
+     * @return TRUE if ==NULL
+     * @stable ICU 4.4
+     */
+    UBool isNull() const { return ptr==NULL; }
+    /**
+     * NULL check.
+     * @return TRUE if !=NULL
+     * @stable ICU 4.4
+     */
+    UBool isValid() const { return ptr!=NULL; }
+    /**
+     * Comparison with a simple pointer, so that existing code
+     * with ==NULL need not be changed.
+     * @param other simple pointer for comparison
+     * @return true if this pointer value equals other
+     * @stable ICU 4.4
+     */
+    bool operator==(const T *other) const { return ptr==other; }
+    /**
+     * Comparison with a simple pointer, so that existing code
+     * with !=NULL need not be changed.
+     * @param other simple pointer for comparison
+     * @return true if this pointer value differs from other
+     * @stable ICU 4.4
+     */
+    bool operator!=(const T *other) const { return ptr!=other; }
+    /**
+     * Access without ownership change.
+     * @return the pointer value
+     * @stable ICU 4.4
+     */
+    T *getAlias() const { return ptr; }
+    /**
+     * Access without ownership change.
+     * @return the pointer value as a reference
+     * @stable ICU 4.4
+     */
+    T &operator*() const { return *ptr; }
+    /**
+     * Access without ownership change.
+     * @return the pointer value
+     * @stable ICU 4.4
+     */
+    T *operator->() const { return ptr; }
+    /**
+     * Gives up ownership; the internal pointer becomes NULL.
+     * @return the pointer value;
+     *         caller becomes responsible for deleting the object
+     * @stable ICU 4.4
+     */
+    T *orphan() {
+        T *p=ptr;
+        ptr=NULL;
+        return p;
+    }
+    /**
+     * Deletes the object it owns,
+     * and adopts (takes ownership of) the one passed in.
+     * Subclass must override: Base class does not delete the object.
+     * @param p simple pointer to an object that is adopted
+     * @stable ICU 4.4
+     */
+    void adoptInstead(T *p) {
+        // delete ptr;
+        ptr=p;
+    }
+protected:
+    /**
+     * Actual pointer.
+     * @internal
+     */
+    T *ptr;
+private:
+    // No comparison operators with other LocalPointerBases.
+    bool operator==(const LocalPointerBase<T> &other);
+    bool operator!=(const LocalPointerBase<T> &other);
+    // No ownership sharing: No copy constructor, no assignment operator.
+    LocalPointerBase(const LocalPointerBase<T> &other);
+    void operator=(const LocalPointerBase<T> &other);
+    // No heap allocation. Use only on the stack.
+    static void * U_EXPORT2 operator new(size_t size);
+    static void * U_EXPORT2 operator new[](size_t size);
+#if U_HAVE_PLACEMENT_NEW
+    static void * U_EXPORT2 operator new(size_t, void *ptr);
+#endif
+};
+
+/**
+ * "Smart pointer" class, deletes objects via the standard C++ delete operator.
+ * For most methods see the LocalPointerBase base class.
+ *
+ * Usage example:
+ * \code
+ * LocalPointer<UnicodeString> s(new UnicodeString((UChar32)0x50005));
+ * int32_t length=s->length();  // 2
+ * char16_t lead=s->charAt(0);  // 0xd900
+ * if(some condition) { return; }  // no need to explicitly delete the pointer
+ * s.adoptInstead(new UnicodeString((char16_t)0xfffc));
+ * length=s->length();  // 1
+ * // no need to explicitly delete the pointer
+ * \endcode
+ *
+ * @see LocalPointerBase
+ * @stable ICU 4.4
+ */
+template<typename T>
+class LocalPointer : public LocalPointerBase<T> {
+public:
+    using LocalPointerBase<T>::operator*;
+    using LocalPointerBase<T>::operator->;
+    /**
+     * Constructor takes ownership.
+     * @param p simple pointer to an object that is adopted
+     * @stable ICU 4.4
+     */
+    explicit LocalPointer(T *p=NULL) : LocalPointerBase<T>(p) {}
+    /**
+     * Constructor takes ownership and reports an error if NULL.
+     *
+     * This constructor is intended to be used with other-class constructors
+     * that may report a failure UErrorCode,
+     * so that callers need to check only for U_FAILURE(errorCode)
+     * and not also separately for isNull().
+     *
+     * @param p simple pointer to an object that is adopted
+     * @param errorCode in/out UErrorCode, set to U_MEMORY_ALLOCATION_ERROR
+     *     if p==NULL and no other failure code had been set
+     * @stable ICU 55
+     */
+    LocalPointer(T *p, UErrorCode &errorCode) : LocalPointerBase<T>(p) {
+        if(p==NULL && U_SUCCESS(errorCode)) {
+            errorCode=U_MEMORY_ALLOCATION_ERROR;
+        }
+    }
+    /**
+     * Move constructor, leaves src with isNull().
+     * @param src source smart pointer
+     * @stable ICU 56
+     */
+    LocalPointer(LocalPointer<T> &&src) U_NOEXCEPT : LocalPointerBase<T>(src.ptr) {
+        src.ptr=NULL;
+    }
+    /**
+     * Destructor deletes the object it owns.
+     * @stable ICU 4.4
+     */
+    ~LocalPointer() {
+        delete LocalPointerBase<T>::ptr;
+    }
+    /**
+     * Move assignment operator, leaves src with isNull().
+     * The behavior is undefined if *this and src are the same object.
+     * @param src source smart pointer
+     * @return *this
+     * @stable ICU 56
+     */
+    LocalPointer<T> &operator=(LocalPointer<T> &&src) U_NOEXCEPT {
+        return moveFrom(src);
+    }
+    // do not use #ifndef U_HIDE_DRAFT_API for moveFrom, needed by non-draft API
+    /**
+     * Move assignment, leaves src with isNull().
+     * The behavior is undefined if *this and src are the same object.
+     *
+     * Can be called explicitly, does not need C++11 support.
+     * @param src source smart pointer
+     * @return *this
+     * @draft ICU 56
+     */
+    LocalPointer<T> &moveFrom(LocalPointer<T> &src) U_NOEXCEPT {
+        delete LocalPointerBase<T>::ptr;
+        LocalPointerBase<T>::ptr=src.ptr;
+        src.ptr=NULL;
+        return *this;
+    }
+    /**
+     * Swap pointers.
+     * @param other other smart pointer
+     * @stable ICU 56
+     */
+    void swap(LocalPointer<T> &other) U_NOEXCEPT {
+        T *temp=LocalPointerBase<T>::ptr;
+        LocalPointerBase<T>::ptr=other.ptr;
+        other.ptr=temp;
+    }
+    /**
+     * Non-member LocalPointer swap function.
+     * @param p1 will get p2's pointer
+     * @param p2 will get p1's pointer
+     * @stable ICU 56
+     */
+    friend inline void swap(LocalPointer<T> &p1, LocalPointer<T> &p2) U_NOEXCEPT {
+        p1.swap(p2);
+    }
+    /**
+     * Deletes the object it owns,
+     * and adopts (takes ownership of) the one passed in.
+     * @param p simple pointer to an object that is adopted
+     * @stable ICU 4.4
+     */
+    void adoptInstead(T *p) {
+        delete LocalPointerBase<T>::ptr;
+        LocalPointerBase<T>::ptr=p;
+    }
+    /**
+     * Deletes the object it owns,
+     * and adopts (takes ownership of) the one passed in.
+     *
+     * If U_FAILURE(errorCode), then the current object is retained and the new one deleted.
+     *
+     * If U_SUCCESS(errorCode) but the input pointer is NULL,
+     * then U_MEMORY_ALLOCATION_ERROR is set,
+     * the current object is deleted, and NULL is set.
+     *
+     * @param p simple pointer to an object that is adopted
+     * @param errorCode in/out UErrorCode, set to U_MEMORY_ALLOCATION_ERROR
+     *     if p==NULL and no other failure code had been set
+     * @stable ICU 55
+     */
+    void adoptInsteadAndCheckErrorCode(T *p, UErrorCode &errorCode) {
+        if(U_SUCCESS(errorCode)) {
+            delete LocalPointerBase<T>::ptr;
+            LocalPointerBase<T>::ptr=p;
+            if(p==NULL) {
+                errorCode=U_MEMORY_ALLOCATION_ERROR;
+            }
+        } else {
+            delete p;
+        }
+    }
+};
+
+/**
+ * "Smart pointer" class, deletes objects via the C++ array delete[] operator.
+ * For most methods see the LocalPointerBase base class.
+ * Adds operator[] for array item access.
+ *
+ * Usage example:
+ * \code
+ * LocalArray<UnicodeString> a(new UnicodeString[2]);
+ * a[0].append((char16_t)0x61);
+ * if(some condition) { return; }  // no need to explicitly delete the array
+ * a.adoptInstead(new UnicodeString[4]);
+ * a[3].append((char16_t)0x62).append((char16_t)0x63).reverse();
+ * // no need to explicitly delete the array
+ * \endcode
+ *
+ * @see LocalPointerBase
+ * @stable ICU 4.4
+ */
+template<typename T>
+class LocalArray : public LocalPointerBase<T> {
+public:
+    using LocalPointerBase<T>::operator*;
+    using LocalPointerBase<T>::operator->;
+    /**
+     * Constructor takes ownership.
+     * @param p simple pointer to an array of T objects that is adopted
+     * @stable ICU 4.4
+     */
+    explicit LocalArray(T *p=NULL) : LocalPointerBase<T>(p) {}
+    /**
+     * Constructor takes ownership and reports an error if NULL.
+     *
+     * This constructor is intended to be used with other-class constructors
+     * that may report a failure UErrorCode,
+     * so that callers need to check only for U_FAILURE(errorCode)
+     * and not also separately for isNull().
+     *
+     * @param p simple pointer to an array of T objects that is adopted
+     * @param errorCode in/out UErrorCode, set to U_MEMORY_ALLOCATION_ERROR
+     *     if p==NULL and no other failure code had been set
+     * @stable ICU 56
+     */
+    LocalArray(T *p, UErrorCode &errorCode) : LocalPointerBase<T>(p) {
+        if(p==NULL && U_SUCCESS(errorCode)) {
+            errorCode=U_MEMORY_ALLOCATION_ERROR;
+        }
+    }
+    /**
+     * Move constructor, leaves src with isNull().
+     * @param src source smart pointer
+     * @stable ICU 56
+     */
+    LocalArray(LocalArray<T> &&src) U_NOEXCEPT : LocalPointerBase<T>(src.ptr) {
+        src.ptr=NULL;
+    }
+    /**
+     * Destructor deletes the array it owns.
+     * @stable ICU 4.4
+     */
+    ~LocalArray() {
+        delete[] LocalPointerBase<T>::ptr;
+    }
+    /**
+     * Move assignment operator, leaves src with isNull().
+     * The behavior is undefined if *this and src are the same object.
+     * @param src source smart pointer
+     * @return *this
+     * @stable ICU 56
+     */
+    LocalArray<T> &operator=(LocalArray<T> &&src) U_NOEXCEPT {
+        return moveFrom(src);
+    }
+    // do not use #ifndef U_HIDE_DRAFT_API for moveFrom, needed by non-draft API
+    /**
+     * Move assignment, leaves src with isNull().
+     * The behavior is undefined if *this and src are the same object.
+     *
+     * Can be called explicitly, does not need C++11 support.
+     * @param src source smart pointer
+     * @return *this
+     * @draft ICU 56
+     */
+    LocalArray<T> &moveFrom(LocalArray<T> &src) U_NOEXCEPT {
+        delete[] LocalPointerBase<T>::ptr;
+        LocalPointerBase<T>::ptr=src.ptr;
+        src.ptr=NULL;
+        return *this;
+    }
+    /**
+     * Swap pointers.
+     * @param other other smart pointer
+     * @stable ICU 56
+     */
+    void swap(LocalArray<T> &other) U_NOEXCEPT {
+        T *temp=LocalPointerBase<T>::ptr;
+        LocalPointerBase<T>::ptr=other.ptr;
+        other.ptr=temp;
+    }
+    /**
+     * Non-member LocalArray swap function.
+     * @param p1 will get p2's pointer
+     * @param p2 will get p1's pointer
+     * @stable ICU 56
+     */
+    friend inline void swap(LocalArray<T> &p1, LocalArray<T> &p2) U_NOEXCEPT {
+        p1.swap(p2);
+    }
+    /**
+     * Deletes the array it owns,
+     * and adopts (takes ownership of) the one passed in.
+     * @param p simple pointer to an array of T objects that is adopted
+     * @stable ICU 4.4
+     */
+    void adoptInstead(T *p) {
+        delete[] LocalPointerBase<T>::ptr;
+        LocalPointerBase<T>::ptr=p;
+    }
+    /**
+     * Deletes the array it owns,
+     * and adopts (takes ownership of) the one passed in.
+     *
+     * If U_FAILURE(errorCode), then the current array is retained and the new one deleted.
+     *
+     * If U_SUCCESS(errorCode) but the input pointer is NULL,
+     * then U_MEMORY_ALLOCATION_ERROR is set,
+     * the current array is deleted, and NULL is set.
+     *
+     * @param p simple pointer to an array of T objects that is adopted
+     * @param errorCode in/out UErrorCode, set to U_MEMORY_ALLOCATION_ERROR
+     *     if p==NULL and no other failure code had been set
+     * @stable ICU 56
+     */
+    void adoptInsteadAndCheckErrorCode(T *p, UErrorCode &errorCode) {
+        if(U_SUCCESS(errorCode)) {
+            delete[] LocalPointerBase<T>::ptr;
+            LocalPointerBase<T>::ptr=p;
+            if(p==NULL) {
+                errorCode=U_MEMORY_ALLOCATION_ERROR;
+            }
+        } else {
+            delete[] p;
+        }
+    }
+    /**
+     * Array item access (writable).
+     * No index bounds check.
+     * @param i array index
+     * @return reference to the array item
+     * @stable ICU 4.4
+     */
+    T &operator[](ptrdiff_t i) const { return LocalPointerBase<T>::ptr[i]; }
+};
+
+/**
+ * \def U_DEFINE_LOCAL_OPEN_POINTER
+ * "Smart pointer" definition macro, deletes objects via the closeFunction.
+ * Defines a subclass of LocalPointerBase which works just
+ * like LocalPointer<Type> except that this subclass will use the closeFunction
+ * rather than the C++ delete operator.
+ *
+ * Usage example:
+ * \code
+ * LocalUCaseMapPointer csm(ucasemap_open(localeID, options, &errorCode));
+ * utf8OutLength=ucasemap_utf8ToLower(csm.getAlias(),
+ *     utf8Out, (int32_t)sizeof(utf8Out),
+ *     utf8In, utf8InLength, &errorCode);
+ * if(U_FAILURE(errorCode)) { return; }  // no need to explicitly delete the UCaseMap
+ * \endcode
+ *
+ * @see LocalPointerBase
+ * @see LocalPointer
+ * @stable ICU 4.4
+ */
+#define U_DEFINE_LOCAL_OPEN_POINTER(LocalPointerClassName, Type, closeFunction) \
+    class LocalPointerClassName : public LocalPointerBase<Type> { \
+    public: \
+        using LocalPointerBase<Type>::operator*; \
+        using LocalPointerBase<Type>::operator->; \
+        explicit LocalPointerClassName(Type *p=NULL) : LocalPointerBase<Type>(p) {} \
+        LocalPointerClassName(LocalPointerClassName &&src) U_NOEXCEPT \
+                : LocalPointerBase<Type>(src.ptr) { \
+            src.ptr=NULL; \
+        } \
+        ~LocalPointerClassName() { if (ptr != NULL) { closeFunction(ptr); } } \
+        LocalPointerClassName &operator=(LocalPointerClassName &&src) U_NOEXCEPT { \
+            return moveFrom(src); \
+        } \
+        LocalPointerClassName &moveFrom(LocalPointerClassName &src) U_NOEXCEPT { \
+            if (ptr != NULL) { closeFunction(ptr); } \
+            LocalPointerBase<Type>::ptr=src.ptr; \
+            src.ptr=NULL; \
+            return *this; \
+        } \
+        void swap(LocalPointerClassName &other) U_NOEXCEPT { \
+            Type *temp=LocalPointerBase<Type>::ptr; \
+            LocalPointerBase<Type>::ptr=other.ptr; \
+            other.ptr=temp; \
+        } \
+        friend inline void swap(LocalPointerClassName &p1, LocalPointerClassName &p2) U_NOEXCEPT { \
+            p1.swap(p2); \
+        } \
+        void adoptInstead(Type *p) { \
+            if (ptr != NULL) { closeFunction(ptr); } \
+            ptr=p; \
+        } \
+    }
+
+U_NAMESPACE_END
+
+#endif  /* U_SHOW_CPLUSPLUS_API */
+#endif  /* __LOCALPOINTER_H__ */
diff --git a/vendor/icu/include/unicode/platform.h b/vendor/icu/include/unicode/platform.h
new file mode 100644
index 0000000000..317d8120d1
--- /dev/null
+++ b/vendor/icu/include/unicode/platform.h
@@ -0,0 +1,865 @@
+// © 2016 and later: Unicode, Inc. and others.
+// License & terms of use: http://www.unicode.org/copyright.html
+/*
+******************************************************************************
+*
+*   Copyright (C) 1997-2016, International Business Machines
+*   Corporation and others.  All Rights Reserved.
+*
+******************************************************************************
+*
+*  FILE NAME : platform.h
+*
+*   Date        Name        Description
+*   05/13/98    nos         Creation (content moved here from ptypes.h).
+*   03/02/99    stephen     Added AS400 support.
+*   03/30/99    stephen     Added Linux support.
+*   04/13/99    stephen     Reworked for autoconf.
+******************************************************************************
+*/
+
+#ifndef _PLATFORM_H
+#define _PLATFORM_H
+
+#include <unicode/uconfig.h>
+#include <unicode/uvernum.h>
+
+/**
+ * \file
+ * \brief Basic types for the platform.
+ *
+ * This file used to be generated by autoconf/configure.
+ * Starting with ICU 49, platform.h is a normal source file,
+ * to simplify cross-compiling and working with non-autoconf/make build systems.
+ *
+ * When a value in this file does not work on a platform, then please
+ * try to derive it from the U_PLATFORM value
+ * (for which we might need a new value constant in rare cases)
+ * and/or from other macros that are predefined by the compiler
+ * or defined in standard (POSIX or platform or compiler) headers.
+ *
+ * As a temporary workaround, you can add an explicit <code>#define</code> for some macros
+ * before it is first tested, or add an equivalent -D macro definition
+ * to the compiler's command line.
+ *
+ * Note: Some compilers provide ways to show the predefined macros.
+ * For example, with gcc you can compile an empty .c file and have the compiler
+ * print the predefined macros with
+ * \code
+ * gcc -E -dM -x c /dev/null | sort
+ * \endcode
+ * (You can provide an actual empty .c file rather than /dev/null.
+ * <code>-x c++</code> is for C++.)
+ */
+
+/**
+ * Define some things so that they can be documented.
+ * @internal
+ */
+#ifdef U_IN_DOXYGEN
+/*
+ * Problem: "platform.h:335: warning: documentation for unknown define U_HAVE_STD_STRING found." means that U_HAVE_STD_STRING is not documented.
+ * Solution: #define any defines for non @internal API here, so that they are visible in the docs.  If you just set PREDEFINED in Doxyfile.in,  they won't be documented.
+ */
+
+/* None for now. */
+#endif
+
+/**
+ * \def U_PLATFORM
+ * The U_PLATFORM macro defines the platform we're on.
+ *
+ * We used to define one different, value-less macro per platform.
+ * That made it hard to know the set of relevant platforms and macros,
+ * and hard to deal with variants of platforms.
+ *
+ * Starting with ICU 49, we define platforms as numeric macros,
+ * with ranges of values for related platforms and their variants.
+ * The U_PLATFORM macro is set to one of these values.
+ *
+ * Historical note from the Solaris Wikipedia article:
+ * AT&T and Sun collaborated on a project to merge the most popular Unix variants
+ * on the market at that time: BSD, System V, and Xenix.
+ * This became Unix System V Release 4 (SVR4).
+ *
+ * @internal
+ */
+
+/** Unknown platform. @internal */
+#define U_PF_UNKNOWN 0
+/** Windows @internal */
+#define U_PF_WINDOWS 1000
+/** MinGW. Windows, calls to Win32 API, but using GNU gcc and binutils. @internal */
+#define U_PF_MINGW 1800
+/**
+ * Cygwin. Windows, calls to cygwin1.dll for Posix functions,
+ * using MSVC or GNU gcc and binutils.
+ * @internal
+ */
+#define U_PF_CYGWIN 1900
+/* Reserve 2000 for U_PF_UNIX? */
+/** HP-UX is based on UNIX System V. @internal */
+#define U_PF_HPUX 2100
+/** Solaris is a Unix operating system based on SVR4. @internal */
+#define U_PF_SOLARIS 2600
+/** BSD is a UNIX operating system derivative. @internal */
+#define U_PF_BSD 3000
+/** AIX is based on UNIX System V Releases and 4.3 BSD. @internal */
+#define U_PF_AIX 3100
+/** IRIX is based on UNIX System V with BSD extensions. @internal */
+#define U_PF_IRIX 3200
+/**
+ * Darwin is a POSIX-compliant operating system, composed of code developed by Apple,
+ * as well as code derived from NeXTSTEP, BSD, and other projects,
+ * built around the Mach kernel.
+ * Darwin forms the core set of components upon which Mac OS X, Apple TV, and iOS are based.
+ * (Original description modified from WikiPedia.)
+ * @internal
+ */
+#define U_PF_DARWIN 3500
+/** iPhone OS (iOS) is a derivative of Mac OS X. @internal */
+#define U_PF_IPHONE 3550
+/** QNX is a commercial Unix-like real-time operating system related to BSD. @internal */
+#define U_PF_QNX 3700
+/** Linux is a Unix-like operating system. @internal */
+#define U_PF_LINUX 4000
+/**
+ * Native Client is pretty close to Linux.
+ * See https://developer.chrome.com/native-client and
+ *  http://www.chromium.org/nativeclient
+ *  @internal
+ */
+#define U_PF_BROWSER_NATIVE_CLIENT 4020
+/** Android is based on Linux. @internal */
+#define U_PF_ANDROID 4050
+/** Fuchsia is a POSIX-ish platform. @internal */
+#define U_PF_FUCHSIA 4100
+/* Maximum value for Linux-based platform is 4499 */
+/** z/OS is the successor to OS/390 which was the successor to MVS. @internal */
+#define U_PF_OS390 9000
+/** "IBM i" is the current name of what used to be i5/OS and earlier OS/400. @internal */
+#define U_PF_OS400 9400
+
+#ifdef U_PLATFORM
+    /* Use the predefined value. */
+#elif defined(__MINGW32__)
+#   define U_PLATFORM U_PF_MINGW
+#elif defined(__CYGWIN__)
+#   define U_PLATFORM U_PF_CYGWIN
+#elif defined(WIN32) || defined(_WIN32) || defined(WIN64) || defined(_WIN64)
+#   define U_PLATFORM U_PF_WINDOWS
+#elif defined(__ANDROID__)
+#   define U_PLATFORM U_PF_ANDROID
+    /* Android wchar_t support depends on the API level. */
+#   include <android/api-level.h>
+#elif defined(__pnacl__) || defined(__native_client__)
+#   define U_PLATFORM U_PF_BROWSER_NATIVE_CLIENT
+#elif defined(__Fuchsia__)
+#   define U_PLATFORM U_PF_FUCHSIA
+#elif defined(linux) || defined(__linux__) || defined(__linux)
+#   define U_PLATFORM U_PF_LINUX
+#elif defined(__APPLE__) && defined(__MACH__)
+#   include <TargetConditionals.h>
+#   if defined(TARGET_OS_IPHONE) && TARGET_OS_IPHONE  /* variant of TARGET_OS_MAC */
+#       define U_PLATFORM U_PF_IPHONE
+#   else
+#       define U_PLATFORM U_PF_DARWIN
+#   endif
+#elif defined(BSD) || defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__NetBSD__) || defined(__OpenBSD__) || defined(__MirBSD__)
+#   if defined(__FreeBSD__)
+#       include <sys/endian.h>
+#   endif
+#   define U_PLATFORM U_PF_BSD
+#elif defined(sun) || defined(__sun)
+    /* Check defined(__SVR4) || defined(__svr4__) to distinguish Solaris from SunOS? */
+#   define U_PLATFORM U_PF_SOLARIS
+#   if defined(__GNUC__)
+        /* Solaris/GCC needs this header file to get the proper endianness. Normally, this
+         * header file is included with stddef.h but on Solairs/GCC, the GCC version of stddef.h
+         *  is included which does not include this header file.
+         */
+#       include <sys/isa_defs.h>
+#   endif
+#elif defined(_AIX) || defined(__TOS_AIX__)
+#   define U_PLATFORM U_PF_AIX
+#elif defined(_hpux) || defined(hpux) || defined(__hpux)
+#   define U_PLATFORM U_PF_HPUX
+#elif defined(sgi) || defined(__sgi)
+#   define U_PLATFORM U_PF_IRIX
+#elif defined(__QNX__) || defined(__QNXNTO__)
+#   define U_PLATFORM U_PF_QNX
+#elif defined(__TOS_MVS__)
+#   define U_PLATFORM U_PF_OS390
+#elif defined(__OS400__) || defined(__TOS_OS400__)
+#   define U_PLATFORM U_PF_OS400
+#else
+#   define U_PLATFORM U_PF_UNKNOWN
+#endif
+
+/**
+ * \def UPRV_INCOMPLETE_CPP11_SUPPORT
+ * This switch turns off ICU 60 NumberFormatter code.
+ * By default, this switch is enabled on AIX and z/OS,
+ * which have poor C++11 support.
+ *
+ * NOTE: This switch is intended to be temporary; see #13393.
+ *
+ * @internal
+ */
+#ifndef UPRV_INCOMPLETE_CPP11_SUPPORT
+#   define UPRV_INCOMPLETE_CPP11_SUPPORT (U_PLATFORM == U_PF_AIX || U_PLATFORM == U_PF_OS390 || U_PLATFORM == U_PF_SOLARIS )
+#endif
+
+/**
+ * \def CYGWINMSVC
+ * Defined if this is Windows with Cygwin, but using MSVC rather than gcc.
+ * Otherwise undefined.
+ * @internal
+ */
+/* Commented out because this is already set in mh-cygwin-msvc
+#if U_PLATFORM == U_PF_CYGWIN && defined(_MSC_VER)
+#   define CYGWINMSVC
+#endif
+*/
+
+/**
+ * \def U_PLATFORM_USES_ONLY_WIN32_API
+ * Defines whether the platform uses only the Win32 API.
+ * Set to 1 for Windows/MSVC and MinGW but not Cygwin.
+ * @internal
+ */
+#ifdef U_PLATFORM_USES_ONLY_WIN32_API
+    /* Use the predefined value. */
+#elif (U_PF_WINDOWS <= U_PLATFORM && U_PLATFORM <= U_PF_MINGW) || defined(CYGWINMSVC)
+#   define U_PLATFORM_USES_ONLY_WIN32_API 1
+#else
+    /* Cygwin implements POSIX. */
+#   define U_PLATFORM_USES_ONLY_WIN32_API 0
+#endif
+
+/**
+ * \def U_PLATFORM_HAS_WIN32_API
+ * Defines whether the Win32 API is available on the platform.
+ * Set to 1 for Windows/MSVC, MinGW and Cygwin.
+ * @internal
+ */
+#ifdef U_PLATFORM_HAS_WIN32_API
+    /* Use the predefined value. */
+#elif U_PF_WINDOWS <= U_PLATFORM && U_PLATFORM <= U_PF_CYGWIN
+#   define U_PLATFORM_HAS_WIN32_API 1
+#else
+#   define U_PLATFORM_HAS_WIN32_API 0
+#endif
+
+/**
+ * \def U_PLATFORM_HAS_WINUWP_API
+ * Defines whether target is intended for Universal Windows Platform API
+ * Set to 1 for Windows10 Release Solution Configuration
+ * @internal
+ */
+#ifdef U_PLATFORM_HAS_WINUWP_API
+    /* Use the predefined value. */
+#else
+#   define U_PLATFORM_HAS_WINUWP_API 0
+#endif
+
+/**
+ * \def U_PLATFORM_IMPLEMENTS_POSIX
+ * Defines whether the platform implements (most of) the POSIX API.
+ * Set to 1 for Cygwin and most other platforms.
+ * @internal
+ */
+#ifdef U_PLATFORM_IMPLEMENTS_POSIX
+    /* Use the predefined value. */
+#elif U_PLATFORM_USES_ONLY_WIN32_API
+#   define U_PLATFORM_IMPLEMENTS_POSIX 0
+#else
+#   define U_PLATFORM_IMPLEMENTS_POSIX 1
+#endif
+
+/**
+ * \def U_PLATFORM_IS_LINUX_BASED
+ * Defines whether the platform is Linux or one of its derivatives.
+ * @internal
+ */
+#ifdef U_PLATFORM_IS_LINUX_BASED
+    /* Use the predefined value. */
+#elif U_PF_LINUX <= U_PLATFORM && U_PLATFORM <= 4499
+#   define U_PLATFORM_IS_LINUX_BASED 1
+#else
+#   define U_PLATFORM_IS_LINUX_BASED 0
+#endif
+
+/**
+ * \def U_PLATFORM_IS_DARWIN_BASED
+ * Defines whether the platform is Darwin or one of its derivatives.
+ * @internal
+ */
+#ifdef U_PLATFORM_IS_DARWIN_BASED
+    /* Use the predefined value. */
+#elif U_PF_DARWIN <= U_PLATFORM && U_PLATFORM <= U_PF_IPHONE
+#   define U_PLATFORM_IS_DARWIN_BASED 1
+#else
+#   define U_PLATFORM_IS_DARWIN_BASED 0
+#endif
+
+/**
+ * \def U_HAVE_STDINT_H
+ * Defines whether stdint.h is available. It is a C99 standard header.
+ * We used to include inttypes.h which includes stdint.h but we usually do not need
+ * the additional definitions from inttypes.h.
+ * @internal
+ */
+#ifdef U_HAVE_STDINT_H
+    /* Use the predefined value. */
+#elif U_PLATFORM_USES_ONLY_WIN32_API
+#   if defined(__BORLANDC__) || U_PLATFORM == U_PF_MINGW || (defined(_MSC_VER) && _MSC_VER>=1600)
+        /* Windows Visual Studio 9 and below do not have stdint.h & inttypes.h, but VS 2010 adds them. */
+#       define U_HAVE_STDINT_H 1
+#   else
+#       define U_HAVE_STDINT_H 0
+#   endif
+#elif U_PLATFORM == U_PF_SOLARIS
+    /* Solaris has inttypes.h but not stdint.h. */
+#   define U_HAVE_STDINT_H 0
+#elif U_PLATFORM == U_PF_AIX && !defined(_AIX51) && defined(_POWER)
+    /* PPC AIX <= 4.3 has inttypes.h but not stdint.h. */
+#   define U_HAVE_STDINT_H 0
+#else
+#   define U_HAVE_STDINT_H 1
+#endif
+
+/**
+ * \def U_HAVE_INTTYPES_H
+ * Defines whether inttypes.h is available. It is a C99 standard header.
+ * We include inttypes.h where it is available but stdint.h is not.
+ * @internal
+ */
+#ifdef U_HAVE_INTTYPES_H
+    /* Use the predefined value. */
+#elif U_PLATFORM == U_PF_SOLARIS
+    /* Solaris has inttypes.h but not stdint.h. */
+#   define U_HAVE_INTTYPES_H 1
+#elif U_PLATFORM == U_PF_AIX && !defined(_AIX51) && defined(_POWER)
+    /* PPC AIX <= 4.3 has inttypes.h but not stdint.h. */
+#   define U_HAVE_INTTYPES_H 1
+#else
+    /* Most platforms have both inttypes.h and stdint.h, or neither. */
+#   define U_HAVE_INTTYPES_H U_HAVE_STDINT_H
+#endif
+
+/*===========================================================================*/
+/** @{ Compiler and environment features                                     */
+/*===========================================================================*/
+
+/**
+ * \def U_GCC_MAJOR_MINOR
+ * Indicates whether the compiler is gcc (test for != 0),
+ * and if so, contains its major (times 100) and minor version numbers.
+ * If the compiler is not gcc, then U_GCC_MAJOR_MINOR == 0.
+ *
+ * For example, for testing for whether we have gcc, and whether it's 4.6 or higher,
+ * use "#if U_GCC_MAJOR_MINOR >= 406".
+ * @internal
+ */
+#ifdef __GNUC__
+#   define U_GCC_MAJOR_MINOR (__GNUC__ * 100 + __GNUC_MINOR__)
+#else
+#   define U_GCC_MAJOR_MINOR 0
+#endif
+
+/**
+ * \def U_IS_BIG_ENDIAN
+ * Determines the endianness of the platform.
+ * @internal
+ */
+#ifdef U_IS_BIG_ENDIAN
+    /* Use the predefined value. */
+#elif defined(BYTE_ORDER) && defined(BIG_ENDIAN)
+#   define U_IS_BIG_ENDIAN (BYTE_ORDER == BIG_ENDIAN)
+#elif defined(__BYTE_ORDER__) && defined(__ORDER_BIG_ENDIAN__)
+    /* gcc */
+#   define U_IS_BIG_ENDIAN (__BYTE_ORDER__ == __ORDER_BIG_ENDIAN__)
+#elif defined(__BIG_ENDIAN__) || defined(_BIG_ENDIAN)
+#   define U_IS_BIG_ENDIAN 1
+#elif defined(__LITTLE_ENDIAN__) || defined(_LITTLE_ENDIAN)
+#   define U_IS_BIG_ENDIAN 0
+#elif U_PLATFORM == U_PF_OS390 || U_PLATFORM == U_PF_OS400 || defined(__s390__) || defined(__s390x__)
+    /* These platforms do not appear to predefine any endianness macros. */
+#   define U_IS_BIG_ENDIAN 1
+#elif defined(_PA_RISC1_0) || defined(_PA_RISC1_1) || defined(_PA_RISC2_0)
+    /* HPPA do not appear to predefine any endianness macros. */
+#   define U_IS_BIG_ENDIAN 1
+#elif defined(sparc) || defined(__sparc) || defined(__sparc__)
+    /* Some sparc based systems (e.g. Linux) do not predefine any endianness macros. */
+#   define U_IS_BIG_ENDIAN 1
+#else
+#   define U_IS_BIG_ENDIAN 0
+#endif
+
+/**
+ * \def U_HAVE_PLACEMENT_NEW
+ * Determines whether to override placement new and delete for STL.
+ * @stable ICU 2.6
+ */
+#ifdef U_HAVE_PLACEMENT_NEW
+    /* Use the predefined value. */
+#elif defined(__BORLANDC__)
+#   define U_HAVE_PLACEMENT_NEW 0
+#else
+#   define U_HAVE_PLACEMENT_NEW 1
+#endif
+
+/**
+ * \def U_HAVE_DEBUG_LOCATION_NEW 
+ * Define this to define the MFC debug version of the operator new.
+ *
+ * @stable ICU 3.4
+ */
+#ifdef U_HAVE_DEBUG_LOCATION_NEW
+    /* Use the predefined value. */
+#elif defined(_MSC_VER)
+#   define U_HAVE_DEBUG_LOCATION_NEW 1
+#else
+#   define U_HAVE_DEBUG_LOCATION_NEW 0
+#endif
+
+/* Compatibility with compilers other than clang: http://clang.llvm.org/docs/LanguageExtensions.html */
+#ifndef __has_attribute
+#    define __has_attribute(x) 0
+#endif
+#ifndef __has_cpp_attribute
+#    define __has_cpp_attribute(x) 0
+#endif
+#ifndef __has_builtin
+#    define __has_builtin(x) 0
+#endif
+#ifndef __has_feature
+#    define __has_feature(x) 0
+#endif
+#ifndef __has_extension
+#    define __has_extension(x) 0
+#endif
+#ifndef __has_warning
+#    define __has_warning(x) 0
+#endif
+
+/**
+ * \def U_MALLOC_ATTR
+ * Attribute to mark functions as malloc-like
+ * @internal
+ */
+#if defined(__GNUC__) && __GNUC__>=3
+#    define U_MALLOC_ATTR __attribute__ ((__malloc__))
+#else
+#    define U_MALLOC_ATTR
+#endif
+
+/**
+ * \def U_ALLOC_SIZE_ATTR
+ * Attribute to specify the size of the allocated buffer for malloc-like functions
+ * @internal
+ */
+#if (defined(__GNUC__) && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3))) || __has_attribute(alloc_size)
+#   define U_ALLOC_SIZE_ATTR(X) __attribute__ ((alloc_size(X)))
+#   define U_ALLOC_SIZE_ATTR2(X,Y) __attribute__ ((alloc_size(X,Y)))
+#else
+#   define U_ALLOC_SIZE_ATTR(X)
+#   define U_ALLOC_SIZE_ATTR2(X,Y)
+#endif
+
+/**
+ * \def U_CPLUSPLUS_VERSION
+ * 0 if no C++; 1, 11, 14, ... if C++.
+ * Support for specific features cannot always be determined by the C++ version alone.
+ * @internal
+ */
+#ifdef U_CPLUSPLUS_VERSION
+#   if U_CPLUSPLUS_VERSION != 0 && !defined(__cplusplus)
+#       undef U_CPLUSPLUS_VERSION
+#       define U_CPLUSPLUS_VERSION 0
+#   endif
+    /* Otherwise use the predefined value. */
+#elif !defined(__cplusplus)
+#   define U_CPLUSPLUS_VERSION 0
+#elif __cplusplus >= 201402L || (defined(_MSVC_LANG) && _MSVC_LANG >= 201402L)
+#   define U_CPLUSPLUS_VERSION 14
+#elif __cplusplus >= 201103L || (defined(_MSVC_LANG) && _MSVC_LANG >= 201103L)
+#   define U_CPLUSPLUS_VERSION 11
+#else
+    // C++98 or C++03
+#   define U_CPLUSPLUS_VERSION 1
+#endif
+
+#if (U_PLATFORM == U_PF_AIX || U_PLATFORM == U_PF_OS390) && defined(__cplusplus) &&(U_CPLUSPLUS_VERSION < 11)
+// add in std::nullptr_t
+namespace std {
+  typedef decltype(nullptr) nullptr_t;
+};
+#endif
+
+/**
+ * \def U_NOEXCEPT
+ * "noexcept" if supported, otherwise empty.
+ * Some code, especially STL containers, uses move semantics of objects only
+ * if the move constructor and the move operator are declared as not throwing exceptions.
+ * @internal
+ */
+#ifdef U_NOEXCEPT
+    /* Use the predefined value. */
+#elif defined(_HAS_EXCEPTIONS) && !_HAS_EXCEPTIONS  /* Visual Studio */
+#   define U_NOEXCEPT
+#elif U_CPLUSPLUS_VERSION >= 11 || __has_feature(cxx_noexcept) || __has_extension(cxx_noexcept) \
+        || (defined(_MSC_VER) && _MSC_VER >= 1900)  /* Visual Studio 2015 */
+#   define U_NOEXCEPT noexcept
+#else
+#   define U_NOEXCEPT
+#endif
+
+/**
+ * \def U_FALLTHROUGH
+ * Annotate intentional fall-through between switch labels.
+ * http://clang.llvm.org/docs/AttributeReference.html#fallthrough-clang-fallthrough
+ * @internal
+ */
+#ifndef __cplusplus
+    // Not for C.
+#elif defined(U_FALLTHROUGH)
+    // Use the predefined value.
+#elif defined(__clang__)
+    // Test for compiler vs. feature separately.
+    // Other compilers might choke on the feature test.
+#   if __has_cpp_attribute(clang::fallthrough) || \
+            (__has_feature(cxx_attributes) && __has_warning("-Wimplicit-fallthrough"))
+#       define U_FALLTHROUGH [[clang::fallthrough]]
+#   endif
+#endif
+
+#ifndef U_FALLTHROUGH
+#   define U_FALLTHROUGH
+#endif
+
+/** @} */
+
+/*===========================================================================*/
+/** @{ Character data types                                                  */
+/*===========================================================================*/
+
+/**
+ * U_CHARSET_FAMILY is equal to this value when the platform is an ASCII based platform.
+ * @stable ICU 2.0
+ */
+#define U_ASCII_FAMILY 0
+
+/**
+ * U_CHARSET_FAMILY is equal to this value when the platform is an EBCDIC based platform.
+ * @stable ICU 2.0
+ */
+#define U_EBCDIC_FAMILY 1
+
+/**
+ * \def U_CHARSET_FAMILY
+ *
+ * <p>These definitions allow to specify the encoding of text
+ * in the char data type as defined by the platform and the compiler.
+ * It is enough to determine the code point values of "invariant characters",
+ * which are the ones shared by all encodings that are in use
+ * on a given platform.</p>
+ *
+ * <p>Those "invariant characters" should be all the uppercase and lowercase
+ * latin letters, the digits, the space, and "basic punctuation".
+ * Also, '\\n', '\\r', '\\t' should be available.</p>
+ *
+ * <p>The list of "invariant characters" is:<br>
+ * \code
+ *    A-Z  a-z  0-9  SPACE  "  %  &amp;  '  (  )  *  +  ,  -  .  /  :  ;  <  =  >  ?  _
+ * \endcode
+ * <br>
+ * (52 letters + 10 numbers + 20 punc/sym/space = 82 total)</p>
+ *
+ * <p>This matches the IBM Syntactic Character Set (CS 640).</p>
+ *
+ * <p>In other words, all the graphic characters in 7-bit ASCII should
+ * be safely accessible except the following:</p>
+ *
+ * \code
+ *    '\' <backslash>
+ *    '[' <left bracket>
+ *    ']' <right bracket>
+ *    '{' <left brace>
+ *    '}' <right brace>
+ *    '^' <circumflex>
+ *    '~' <tilde>
+ *    '!' <exclamation mark>
+ *    '#' <number sign>
+ *    '|' <vertical line>
+ *    '$' <dollar sign>
+ *    '@' <commercial at>
+ *    '`' <grave accent>
+ * \endcode
+ * @stable ICU 2.0
+ */
+#ifdef U_CHARSET_FAMILY
+    /* Use the predefined value. */
+#elif U_PLATFORM == U_PF_OS390 && (!defined(__CHARSET_LIB) || !__CHARSET_LIB)
+#   define U_CHARSET_FAMILY U_EBCDIC_FAMILY
+#elif U_PLATFORM == U_PF_OS400 && !defined(__UTF32__)
+#   define U_CHARSET_FAMILY U_EBCDIC_FAMILY
+#else
+#   define U_CHARSET_FAMILY U_ASCII_FAMILY
+#endif
+
+/**
+ * \def U_CHARSET_IS_UTF8
+ *
+ * Hardcode the default charset to UTF-8.
+ *
+ * If this is set to 1, then
+ * - ICU will assume that all non-invariant char*, StringPiece, std::string etc.
+ *   contain UTF-8 text, regardless of what the system API uses
+ * - some ICU code will use fast functions like u_strFromUTF8()
+ *   rather than the more general and more heavy-weight conversion API (ucnv.h)
+ * - ucnv_getDefaultName() always returns "UTF-8"
+ * - ucnv_setDefaultName() is disabled and will not change the default charset
+ * - static builds of ICU are smaller
+ * - more functionality is available with the UCONFIG_NO_CONVERSION build-time
+ *   configuration option (see unicode/uconfig.h)
+ * - the UCONFIG_NO_CONVERSION build option in uconfig.h is more usable
+ *
+ * @stable ICU 4.2
+ * @see UCONFIG_NO_CONVERSION
+ */
+#ifdef U_CHARSET_IS_UTF8
+    /* Use the predefined value. */
+#elif U_PLATFORM_IS_LINUX_BASED || U_PLATFORM_IS_DARWIN_BASED
+#   define U_CHARSET_IS_UTF8 1
+#else
+#   define U_CHARSET_IS_UTF8 0
+#endif
+
+/** @} */
+
+/*===========================================================================*/
+/** @{ Information about wchar support                                       */
+/*===========================================================================*/
+
+/**
+ * \def U_HAVE_WCHAR_H
+ * Indicates whether <wchar.h> is available (1) or not (0). Set to 1 by default.
+ *
+ * @stable ICU 2.0
+ */
+#ifdef U_HAVE_WCHAR_H
+    /* Use the predefined value. */
+#elif U_PLATFORM == U_PF_ANDROID && __ANDROID_API__ < 9
+    /*
+     * Android before Gingerbread (Android 2.3, API level 9) did not support wchar_t.
+     * The type and header existed, but the library functions did not work as expected.
+     * The size of wchar_t was 1 but L"xyz" string literals had 32-bit units anyway.
+     */
+#   define U_HAVE_WCHAR_H 0
+#else
+#   define U_HAVE_WCHAR_H 1
+#endif
+
+/**
+ * \def U_SIZEOF_WCHAR_T
+ * U_SIZEOF_WCHAR_T==sizeof(wchar_t)
+ *
+ * @stable ICU 2.0
+ */
+#ifdef U_SIZEOF_WCHAR_T
+    /* Use the predefined value. */
+#elif (U_PLATFORM == U_PF_ANDROID && __ANDROID_API__ < 9)
+    /*
+     * Classic Mac OS and Mac OS X before 10.3 (Panther) did not support wchar_t or wstring.
+     * Newer Mac OS X has size 4.
+     */
+#   define U_SIZEOF_WCHAR_T 1
+#elif U_PLATFORM_HAS_WIN32_API || U_PLATFORM == U_PF_CYGWIN
+#   define U_SIZEOF_WCHAR_T 2
+#elif U_PLATFORM == U_PF_AIX
+    /*
+     * AIX 6.1 information, section "Wide character data representation":
+     * "... the wchar_t datatype is 32-bit in the 64-bit environment and
+     * 16-bit in the 32-bit environment."
+     * and
+     * "All locales use Unicode for their wide character code values (process code),
+     * except the IBM-eucTW codeset."
+     */
+#   ifdef __64BIT__
+#       define U_SIZEOF_WCHAR_T 4
+#   else
+#       define U_SIZEOF_WCHAR_T 2
+#   endif
+#elif U_PLATFORM == U_PF_OS390
+    /*
+     * z/OS V1R11 information center, section "LP64 | ILP32":
+     * "In 31-bit mode, the size of long and pointers is 4 bytes and the size of wchar_t is 2 bytes.
+     * Under LP64, the size of long and pointer is 8 bytes and the size of wchar_t is 4 bytes."
+     */
+#   ifdef _LP64
+#       define U_SIZEOF_WCHAR_T 4
+#   else
+#       define U_SIZEOF_WCHAR_T 2
+#   endif
+#elif U_PLATFORM == U_PF_OS400
+#   if defined(__UTF32__)
+        /*
+         * LOCALETYPE(*LOCALEUTF) is specified.
+         * Wide-character strings are in UTF-32,
+         * narrow-character strings are in UTF-8.
+         */
+#       define U_SIZEOF_WCHAR_T 4
+#   elif defined(__UCS2__)
+        /*
+         * LOCALETYPE(*LOCALEUCS2) is specified.
+         * Wide-character strings are in UCS-2,
+         * narrow-character strings are in EBCDIC.
+         */
+#       define U_SIZEOF_WCHAR_T 2
+#else
+        /*
+         * LOCALETYPE(*CLD) or LOCALETYPE(*LOCALE) is specified.
+         * Wide-character strings are in 16-bit EBCDIC,
+         * narrow-character strings are in EBCDIC.
+         */
+#       define U_SIZEOF_WCHAR_T 2
+#   endif
+#else
+#   define U_SIZEOF_WCHAR_T 4
+#endif
+
+#ifndef U_HAVE_WCSCPY
+#define U_HAVE_WCSCPY U_HAVE_WCHAR_H
+#endif
+
+/** @} */
+
+/**
+ * \def U_HAVE_CHAR16_T
+ * Defines whether the char16_t type is available for UTF-16
+ * and u"abc" UTF-16 string literals are supported.
+ * This is a new standard type and standard string literal syntax in C++0x
+ * but has been available in some compilers before.
+ * @internal
+ */
+#ifdef U_HAVE_CHAR16_T
+    /* Use the predefined value. */
+#else
+    /*
+     * Notes:
+     * Visual Studio 2010 (_MSC_VER==1600) defines char16_t as a typedef
+     * and does not support u"abc" string literals.
+     * Visual Studio 2015 (_MSC_VER>=1900) and above adds support for
+     * both char16_t and u"abc" string literals.
+     * gcc 4.4 defines the __CHAR16_TYPE__ macro to a usable type but
+     * does not support u"abc" string literals.
+     * C++11 and C11 require support for UTF-16 literals
+     * TODO: Fix for plain C. Doesn't work on Mac.
+     */
+#   if U_CPLUSPLUS_VERSION >= 11 || (defined(__STDC_VERSION__) && __STDC_VERSION__ >= 201112L)
+#       define U_HAVE_CHAR16_T 1
+#   else
+#       define U_HAVE_CHAR16_T 0
+#   endif
+#endif
+
+/**
+ * @{
+ * \def U_DECLARE_UTF16
+ * Do not use this macro because it is not defined on all platforms.
+ * Use the UNICODE_STRING or U_STRING_DECL macros instead.
+ * @internal
+ */
+#ifdef U_DECLARE_UTF16
+    /* Use the predefined value. */
+#elif U_HAVE_CHAR16_T \
+    || (defined(__xlC__) && defined(__IBM_UTF_LITERAL) && U_SIZEOF_WCHAR_T != 2) \
+    || (defined(__HP_aCC) && __HP_aCC >= 035000) \
+    || (defined(__HP_cc) && __HP_cc >= 111106)
+#   define U_DECLARE_UTF16(string) u ## string
+#elif U_SIZEOF_WCHAR_T == 2 \
+    && (U_CHARSET_FAMILY == 0 || (U_PF_OS390 <= U_PLATFORM && U_PLATFORM <= U_PF_OS400 && defined(__UCS2__)))
+#   define U_DECLARE_UTF16(string) L ## string
+#else
+    /* Leave U_DECLARE_UTF16 undefined. See unistr.h. */
+#endif
+
+/** @} */
+
+/*===========================================================================*/
+/** @{ Symbol import-export control                                          */
+/*===========================================================================*/
+
+#ifdef U_EXPORT
+    /* Use the predefined value. */
+#elif defined(U_STATIC_IMPLEMENTATION)
+#   define U_EXPORT
+#elif defined(__GNUC__)
+#   define U_EXPORT __attribute__((visibility("default")))
+#elif (defined(__SUNPRO_CC) && __SUNPRO_CC >= 0x550) \
+   || (defined(__SUNPRO_C) && __SUNPRO_C >= 0x550) 
+#   define U_EXPORT __global
+/*#elif defined(__HP_aCC) || defined(__HP_cc)
+#   define U_EXPORT __declspec(dllexport)*/
+#elif defined(_MSC_VER)
+#   define U_EXPORT __declspec(dllexport)
+#else
+#   define U_EXPORT
+#endif
+
+/* U_CALLCONV is releated to U_EXPORT2 */
+#ifdef U_EXPORT2
+    /* Use the predefined value. */
+#elif defined(_MSC_VER)
+#   define U_EXPORT2 __cdecl
+#else
+#   define U_EXPORT2
+#endif
+
+#ifdef U_IMPORT
+    /* Use the predefined value. */
+#elif defined(_MSC_VER)
+    /* Windows needs to export/import data. */
+#   define U_IMPORT __declspec(dllimport)
+#else
+#   define U_IMPORT 
+#endif
+
+/**
+ * \def U_CALLCONV
+ * Similar to U_CDECL_BEGIN/U_CDECL_END, this qualifier is necessary
+ * in callback function typedefs to make sure that the calling convention
+ * is compatible.
+ *
+ * This is only used for non-ICU-API functions.
+ * When a function is a public ICU API,
+ * you must use the U_CAPI and U_EXPORT2 qualifiers.
+ *
+ * Please note, you need to use U_CALLCONV after the *.
+ *
+ * NO : "static const char U_CALLCONV *func( . . . )"
+ * YES: "static const char* U_CALLCONV func( . . . )"
+ *
+ * @stable ICU 2.0
+ */
+#if U_PLATFORM == U_PF_OS390 && defined(__cplusplus)
+#    define U_CALLCONV __cdecl
+#else
+#    define U_CALLCONV U_EXPORT2
+#endif
+
+/**
+ * \def U_CALLCONV_FPTR
+ * Similar to U_CALLCONV, but only used on function pointers.
+ * @internal
+ */
+#if U_PLATFORM == U_PF_OS390 && defined(__cplusplus)
+#    define U_CALLCONV_FPTR U_CALLCONV
+#else
+#    define U_CALLCONV_FPTR
+#endif
+/* @} */
+
+#endif
diff --git a/vendor/icu/include/unicode/ptypes.h b/vendor/icu/include/unicode/ptypes.h
new file mode 100644
index 0000000000..252da5519e
--- /dev/null
+++ b/vendor/icu/include/unicode/ptypes.h
@@ -0,0 +1,128 @@
+// © 2016 and later: Unicode, Inc. and others.
+// License & terms of use: http://www.unicode.org/copyright.html
+/*
+******************************************************************************
+*
+*   Copyright (C) 1997-2012, International Business Machines
+*   Corporation and others.  All Rights Reserved.
+*
+******************************************************************************
+*
+*  FILE NAME : ptypes.h
+*
+*   Date        Name        Description
+*   05/13/98    nos         Creation (content moved here from ptypes.h).
+*   03/02/99    stephen     Added AS400 support.
+*   03/30/99    stephen     Added Linux support.
+*   04/13/99    stephen     Reworked for autoconf.
+*   09/18/08    srl         Moved basic types back to ptypes.h from platform.h
+******************************************************************************
+*/
+
+/**
+ * \file
+ * \brief C API: Definitions of integer types of various widths
+ */
+
+#ifndef _PTYPES_H
+#define _PTYPES_H
+
+/**
+ * \def __STDC_LIMIT_MACROS
+ * According to the Linux stdint.h, the ISO C99 standard specifies that in C++ implementations
+ * macros like INT32_MIN and UINTPTR_MAX should only be defined if explicitly requested.
+ * We need to define __STDC_LIMIT_MACROS before including stdint.h in C++ code
+ * that uses such limit macros.
+ * @internal
+ */
+#ifndef __STDC_LIMIT_MACROS
+#define __STDC_LIMIT_MACROS
+#endif
+
+/* NULL, size_t, wchar_t */
+#include <stddef.h>
+
+/*
+ * If all compilers provided all of the C99 headers and types,
+ * we would just unconditionally #include <stdint.h> here
+ * and not need any of the stuff after including platform.h.
+ */
+
+/* Find out if we have stdint.h etc. */
+#include <unicode/platform.h>
+
+/*===========================================================================*/
+/* Generic data types                                                        */
+/*===========================================================================*/
+
+/* If your platform does not have the <stdint.h> header, you may
+   need to edit the typedefs in the #else section below.
+   Use #if...#else...#endif with predefined compiler macros if possible. */
+#if U_HAVE_STDINT_H
+
+/*
+ * We mostly need <stdint.h> (which defines the standard integer types) but not <inttypes.h>.
+ * <inttypes.h> includes <stdint.h> and adds the printf/scanf helpers PRId32, SCNx16 etc.
+ * which we almost never use, plus stuff like imaxabs() which we never use.
+ */
+#include <stdint.h>
+
+#if U_PLATFORM == U_PF_OS390
+/* The features header is needed to get (u)int64_t sometimes. */
+#include <features.h>
+/* z/OS has <stdint.h>, but some versions are missing uint8_t (APAR PK62248). */
+#if !defined(__uint8_t)
+#define __uint8_t 1
+typedef unsigned char uint8_t;
+#endif
+#endif /* U_PLATFORM == U_PF_OS390 */
+
+#elif U_HAVE_INTTYPES_H
+
+#   include <inttypes.h>
+
+#else /* neither U_HAVE_STDINT_H nor U_HAVE_INTTYPES_H */
+
+#if ! U_HAVE_INT8_T
+typedef signed char int8_t;
+#endif
+
+#if ! U_HAVE_UINT8_T
+typedef unsigned char uint8_t;
+#endif
+
+#if ! U_HAVE_INT16_T
+typedef signed short int16_t;
+#endif
+
+#if ! U_HAVE_UINT16_T
+typedef unsigned short uint16_t;
+#endif
+
+#if ! U_HAVE_INT32_T
+typedef signed int int32_t;
+#endif
+
+#if ! U_HAVE_UINT32_T
+typedef unsigned int uint32_t;
+#endif
+
+#if ! U_HAVE_INT64_T
+#ifdef _MSC_VER
+    typedef signed __int64 int64_t;
+#else
+    typedef signed long long int64_t;
+#endif
+#endif
+
+#if ! U_HAVE_UINT64_T
+#ifdef _MSC_VER
+    typedef unsigned __int64 uint64_t;
+#else
+    typedef unsigned long long uint64_t;
+#endif
+#endif
+
+#endif /* U_HAVE_STDINT_H / U_HAVE_INTTYPES_H */
+
+#endif /* _PTYPES_H */
diff --git a/vendor/icu/include/unicode/putil.h b/vendor/icu/include/unicode/putil.h
new file mode 100644
index 0000000000..4975c4abf9
--- /dev/null
+++ b/vendor/icu/include/unicode/putil.h
@@ -0,0 +1,183 @@
+// © 2016 and later: Unicode, Inc. and others.
+// License & terms of use: http://www.unicode.org/copyright.html
+/*
+******************************************************************************
+*
+*   Copyright (C) 1997-2014, International Business Machines
+*   Corporation and others.  All Rights Reserved.
+*
+******************************************************************************
+*
+*  FILE NAME : putil.h
+*
+*   Date        Name        Description
+*   05/14/98    nos         Creation (content moved here from utypes.h).
+*   06/17/99    erm         Added IEEE_754
+*   07/22/98    stephen     Added IEEEremainder, max, min, trunc
+*   08/13/98    stephen     Added isNegativeInfinity, isPositiveInfinity
+*   08/24/98    stephen     Added longBitsFromDouble
+*   03/02/99    stephen     Removed openFile().  Added AS400 support.
+*   04/15/99    stephen     Converted to C
+*   11/15/99    helena      Integrated S/390 changes for IEEE support.
+*   01/11/00    helena      Added u_getVersion.
+******************************************************************************
+*/
+
+#ifndef PUTIL_H
+#define PUTIL_H
+
+#include <unicode/utypes.h>
+ /**
+  * \file
+  * \brief C API: Platform Utilities
+  */
+
+/*==========================================================================*/
+/* Platform utilities                                                       */
+/*==========================================================================*/
+
+/**
+ * Platform utilities isolates the platform dependencies of the
+ * library.  For each platform which this code is ported to, these
+ * functions may have to be re-implemented.
+ */
+
+/**
+ * Return the ICU data directory. 
+ * The data directory is where common format ICU data files (.dat files)
+ *   are loaded from.  Note that normal use of the built-in ICU
+ *   facilities does not require loading of an external data file;
+ *   unless you are adding custom data to ICU, the data directory
+ *   does not need to be set.
+ *
+ * The data directory is determined as follows:
+ *    If u_setDataDirectory() has been called, that is it, otherwise
+ *    if the ICU_DATA environment variable is set, use that, otherwise
+ *    If a data directory was specified at ICU build time
+ *      <code>
+ * \code
+ *        #define ICU_DATA_DIR "path" 
+ * \endcode
+ * </code> use that,
+ *    otherwise no data directory is available.
+ *
+ * @return the data directory, or an empty string ("") if no data directory has
+ *         been specified.
+ *   
+ * @stable ICU 2.0
+ */
+U_STABLE const char* U_EXPORT2 u_getDataDirectory(void);
+
+
+/** 
+ * Set the ICU data directory. 
+ * The data directory is where common format ICU data files (.dat files)
+ *   are loaded from.  Note that normal use of the built-in ICU
+ *   facilities does not require loading of an external data file;
+ *   unless you are adding custom data to ICU, the data directory
+ *   does not need to be set.
+ *
+ * This function should be called at most once in a process, before the
+ * first ICU operation (e.g., u_init()) that will require the loading of an
+ * ICU data file.
+ * This function is not thread-safe. Use it before calling ICU APIs from
+ * multiple threads.
+ *
+ * @param directory The directory to be set.
+ *
+ * @see u_init
+ * @stable ICU 2.0
+ */
+U_STABLE void U_EXPORT2 u_setDataDirectory(const char *directory);
+
+#ifndef U_HIDE_INTERNAL_API
+/**
+  * Return the time zone files override directory, or an empty string if
+  * no directory was specified. Certain time zone resources will be preferentially
+  * loaded from individual files in this directory.
+  *
+  * @return the time zone data override directory.
+  * @internal
+  */ 
+U_INTERNAL const char * U_EXPORT2 u_getTimeZoneFilesDirectory(UErrorCode *status);
+
+/**
+  * Set the time zone files override directory.
+  * This function is not thread safe; it must not be called concurrently with
+  *   u_getTimeZoneFilesDirectory() or any other use of ICU time zone functions.
+  * This function should only be called before using any ICU service that
+  *   will access the time zone data.
+  * @internal
+  */
+U_INTERNAL void U_EXPORT2 u_setTimeZoneFilesDirectory(const char *path, UErrorCode *status);
+#endif  /* U_HIDE_INTERNAL_API */
+
+
+/**
+ * @{
+ * Filesystem file and path separator characters.
+ * Example: '/' and ':' on Unix, '\\' and ';' on Windows.
+ * @stable ICU 2.0
+ */
+#if U_PLATFORM_USES_ONLY_WIN32_API
+#   define U_FILE_SEP_CHAR '\\'
+#   define U_FILE_ALT_SEP_CHAR '/'
+#   define U_PATH_SEP_CHAR ';'
+#   define U_FILE_SEP_STRING "\\"
+#   define U_FILE_ALT_SEP_STRING "/"
+#   define U_PATH_SEP_STRING ";"
+#else
+#   define U_FILE_SEP_CHAR '/'
+#   define U_FILE_ALT_SEP_CHAR '/'
+#   define U_PATH_SEP_CHAR ':'
+#   define U_FILE_SEP_STRING "/"
+#   define U_FILE_ALT_SEP_STRING "/"
+#   define U_PATH_SEP_STRING ":"
+#endif
+
+/** @} */
+
+/**
+ * Convert char characters to UChar characters.
+ * This utility function is useful only for "invariant characters"
+ * that are encoded in the platform default encoding.
+ * They are a small, constant subset of the encoding and include
+ * just the latin letters, digits, and some punctuation.
+ * For details, see U_CHARSET_FAMILY.
+ *
+ * @param cs Input string, points to <code>length</code>
+ *           character bytes from a subset of the platform encoding.
+ * @param us Output string, points to memory for <code>length</code>
+ *           Unicode characters.
+ * @param length The number of characters to convert; this may
+ *               include the terminating <code>NUL</code>.
+ *
+ * @see U_CHARSET_FAMILY
+ * @stable ICU 2.0
+ */
+U_STABLE void U_EXPORT2
+u_charsToUChars(const char *cs, UChar *us, int32_t length);
+
+/**
+ * Convert UChar characters to char characters.
+ * This utility function is useful only for "invariant characters"
+ * that can be encoded in the platform default encoding.
+ * They are a small, constant subset of the encoding and include
+ * just the latin letters, digits, and some punctuation.
+ * For details, see U_CHARSET_FAMILY.
+ *
+ * @param us Input string, points to <code>length</code>
+ *           Unicode characters that can be encoded with the
+ *           codepage-invariant subset of the platform encoding.
+ * @param cs Output string, points to memory for <code>length</code>
+ *           character bytes.
+ * @param length The number of characters to convert; this may
+ *               include the terminating <code>NUL</code>.
+ *
+ * @see U_CHARSET_FAMILY
+ * @stable ICU 2.0
+ */
+U_STABLE void U_EXPORT2
+u_UCharsToChars(const UChar *us, char *cs, int32_t length);
+
+#endif
diff --git a/vendor/icu/include/unicode/rep.h b/vendor/icu/include/unicode/rep.h
new file mode 100644
index 0000000000..b4fa87d32b
--- /dev/null
+++ b/vendor/icu/include/unicode/rep.h
@@ -0,0 +1,263 @@
+// © 2016 and later: Unicode, Inc. and others.
+// License & terms of use: http://www.unicode.org/copyright.html
+/*
+**************************************************************************
+* Copyright (C) 1999-2012, International Business Machines Corporation and
+* others. All Rights Reserved.
+**************************************************************************
+*   Date        Name        Description
+*   11/17/99    aliu        Creation.  Ported from java.  Modified to
+*                           match current UnicodeString API.  Forced
+*                           to use name "handleReplaceBetween" because
+*                           of existing methods in UnicodeString.
+**************************************************************************
+*/
+
+#ifndef REP_H
+#define REP_H
+
+#include <unicode/uobject.h>
+
+/**
+ * \file 
+ * \brief C++ API: Replaceable String
+ */
+ 
+U_NAMESPACE_BEGIN
+
+class UnicodeString;
+
+/**
+ * <code>Replaceable</code> is an abstract base class representing a
+ * string of characters that supports the replacement of a range of
+ * itself with a new string of characters.  It is used by APIs that
+ * change a piece of text while retaining metadata.  Metadata is data
+ * other than the Unicode characters returned by char32At().  One
+ * example of metadata is style attributes; another is an edit
+ * history, marking each character with an author and revision number.
+ *
+ * <p>An implicit aspect of the <code>Replaceable</code> API is that
+ * during a replace operation, new characters take on the metadata of
+ * the old characters.  For example, if the string "the <b>bold</b>
+ * font" has range (4, 8) replaced with "strong", then it becomes "the
+ * <b>strong</b> font".
+ *
+ * <p><code>Replaceable</code> specifies ranges using a start
+ * offset and a limit offset.  The range of characters thus specified
+ * includes the characters at offset start..limit-1.  That is, the
+ * start offset is inclusive, and the limit offset is exclusive.
+ *
+ * <p><code>Replaceable</code> also includes API to access characters
+ * in the string: <code>length()</code>, <code>charAt()</code>,
+ * <code>char32At()</code>, and <code>extractBetween()</code>.
+ *
+ * <p>For a subclass to support metadata, typical behavior of
+ * <code>replace()</code> is the following:
+ * <ul>
+ *   <li>Set the metadata of the new text to the metadata of the first
+ *   character replaced</li>
+ *   <li>If no characters are replaced, use the metadata of the
+ *   previous character</li>
+ *   <li>If there is no previous character (i.e. start == 0), use the
+ *   following character</li>
+ *   <li>If there is no following character (i.e. the replaceable was
+ *   empty), use default metadata.<br>
+ *   <li>If the code point U+FFFF is seen, it should be interpreted as
+ *   a special marker having no metadata<li>
+ *   </li>
+ * </ul>
+ * If this is not the behavior, the subclass should document any differences.
+ * @author Alan Liu
+ * @stable ICU 2.0
+ */
+class U_COMMON_API Replaceable : public UObject {
+
+public:
+    /**
+     * Destructor.
+     * @stable ICU 2.0
+     */
+    virtual ~Replaceable();
+
+    /**
+     * Returns the number of 16-bit code units in the text.
+     * @return number of 16-bit code units in text
+     * @stable ICU 1.8
+     */ 
+    inline int32_t length() const;
+
+    /**
+     * Returns the 16-bit code unit at the given offset into the text.
+     * @param offset an integer between 0 and <code>length()</code>-1
+     * inclusive
+     * @return 16-bit code unit of text at given offset
+     * @stable ICU 1.8
+     */
+    inline char16_t charAt(int32_t offset) const;
+
+    /**
+     * Returns the 32-bit code point at the given 16-bit offset into
+     * the text.  This assumes the text is stored as 16-bit code units
+     * with surrogate pairs intermixed.  If the offset of a leading or
+     * trailing code unit of a surrogate pair is given, return the
+     * code point of the surrogate pair.
+     *
+     * @param offset an integer between 0 and <code>length()</code>-1
+     * inclusive
+     * @return 32-bit code point of text at given offset
+     * @stable ICU 1.8
+     */
+    inline UChar32 char32At(int32_t offset) const;
+
+    /**
+     * Copies characters in the range [<tt>start</tt>, <tt>limit</tt>) 
+     * into the UnicodeString <tt>target</tt>.
+     * @param start offset of first character which will be copied
+     * @param limit offset immediately following the last character to
+     * be copied
+     * @param target UnicodeString into which to copy characters.
+     * @return A reference to <TT>target</TT>
+     * @stable ICU 2.1
+     */
+    virtual void extractBetween(int32_t start,
+                                int32_t limit,
+                                UnicodeString& target) const = 0;
+
+    /**
+     * Replaces a substring of this object with the given text.  If the
+     * characters being replaced have metadata, the new characters
+     * that replace them should be given the same metadata.
+     *
+     * <p>Subclasses must ensure that if the text between start and
+     * limit is equal to the replacement text, that replace has no
+     * effect. That is, any metadata
+     * should be unaffected. In addition, subclasses are encouraged to
+     * check for initial and trailing identical characters, and make a
+     * smaller replacement if possible. This will preserve as much
+     * metadata as possible.
+     * @param start the beginning index, inclusive; <code>0 <= start
+     * <= limit</code>.
+     * @param limit the ending index, exclusive; <code>start <= limit
+     * <= length()</code>.
+     * @param text the text to replace characters <code>start</code>
+     * to <code>limit - 1</code> 
+     * @stable ICU 2.0
+     */
+    virtual void handleReplaceBetween(int32_t start,
+                                      int32_t limit,
+                                      const UnicodeString& text) = 0;
+    // Note: All other methods in this class take the names of
+    // existing UnicodeString methods.  This method is the exception.
+    // It is named differently because all replace methods of
+    // UnicodeString return a UnicodeString&.  The 'between' is
+    // required in order to conform to the UnicodeString naming
+    // convention; API taking start/length are named <operation>, and
+    // those taking start/limit are named <operationBetween>.  The
+    // 'handle' is added because 'replaceBetween' and
+    // 'doReplaceBetween' are already taken.
+
+    /**
+     * Copies a substring of this object, retaining metadata.
+     * This method is used to duplicate or reorder substrings.
+     * The destination index must not overlap the source range.
+     * 
+     * @param start the beginning index, inclusive; <code>0 <= start <=
+     * limit</code>.
+     * @param limit the ending index, exclusive; <code>start <= limit <=
+     * length()</code>.
+     * @param dest the destination index.  The characters from
+     * <code>start..limit-1</code> will be copied to <code>dest</code>.
+     * Implementations of this method may assume that <code>dest <= start ||
+     * dest >= limit</code>.
+     * @stable ICU 2.0
+     */
+    virtual void copy(int32_t start, int32_t limit, int32_t dest) = 0;
+
+    /**
+     * Returns true if this object contains metadata.  If a
+     * Replaceable object has metadata, calls to the Replaceable API
+     * must be made so as to preserve metadata.  If it does not, calls
+     * to the Replaceable API may be optimized to improve performance.
+     * The default implementation returns true.
+     * @return true if this object contains metadata
+     * @stable ICU 2.2
+     */
+    virtual UBool hasMetaData() const;
+
+    /**
+     * Clone this object, an instance of a subclass of Replaceable.
+     * Clones can be used concurrently in multiple threads.
+     * If a subclass does not implement clone(), or if an error occurs,
+     * then NULL is returned.
+     * The clone functions in all subclasses return a pointer to a Replaceable
+     * because some compilers do not support covariant (same-as-this)
+     * return types; cast to the appropriate subclass if necessary.
+     * The caller must delete the clone.
+     *
+     * @return a clone of this object
+     *
+     * @see getDynamicClassID
+     * @stable ICU 2.6
+     */
+    virtual Replaceable *clone() const;
+
+protected:
+
+    /**
+     * Default constructor.
+     * @stable ICU 2.4
+     */
+    inline Replaceable();
+
+    /*
+     * Assignment operator not declared. The compiler will provide one
+     * which does nothing since this class does not contain any data members.
+     * API/code coverage may show the assignment operator as present and
+     * untested - ignore.
+     * Subclasses need this assignment operator if they use compiler-provided
+     * assignment operators of their own. An alternative to not declaring one
+     * here would be to declare and empty-implement a protected or public one.
+    Replaceable &Replaceable::operator=(const Replaceable &);
+     */
+
+    /**
+     * Virtual version of length().
+     * @stable ICU 2.4
+     */ 
+    virtual int32_t getLength() const = 0;
+
+    /**
+     * Virtual version of charAt().
+     * @stable ICU 2.4
+     */
+    virtual char16_t getCharAt(int32_t offset) const = 0;
+
+    /**
+     * Virtual version of char32At().
+     * @stable ICU 2.4
+     */
+    virtual UChar32 getChar32At(int32_t offset) const = 0;
+};
+
+inline Replaceable::Replaceable() {}
+
+inline int32_t
+Replaceable::length() const {
+    return getLength();
+}
+
+inline char16_t
+Replaceable::charAt(int32_t offset) const {
+    return getCharAt(offset);
+}
+
+inline UChar32
+Replaceable::char32At(int32_t offset) const {
+    return getChar32At(offset);
+}
+
+// There is no rep.cpp, see unistr.cpp for Replaceable function implementations.
+
+U_NAMESPACE_END
+
+#endif
diff --git a/vendor/icu/include/unicode/std_string.h b/vendor/icu/include/unicode/std_string.h
new file mode 100644
index 0000000000..ba5f007ac6
--- /dev/null
+++ b/vendor/icu/include/unicode/std_string.h
@@ -0,0 +1,37 @@
+// © 2016 and later: Unicode, Inc. and others.
+// License & terms of use: http://www.unicode.org/copyright.html
+/*
+*******************************************************************************
+*
+*   Copyright (C) 2009-2014, International Business Machines
+*   Corporation and others.  All Rights Reserved.
+*
+*******************************************************************************
+*   file name:  std_string.h
+*   encoding:   UTF-8
+*   tab size:   8 (not used)
+*   indentation:4
+*
+*   created on: 2009feb19
+*   created by: Markus W. Scherer
+*/
+
+#ifndef __STD_STRING_H__
+#define __STD_STRING_H__
+
+/**
+ * \file
+ * \brief C++ API: Central ICU header for including the C++ standard &lt;string&gt;
+ *                 header and for related definitions.
+ */
+
+#include <unicode/utypes.h>
+
+// Workaround for a libstdc++ bug before libstdc++4.6 (2011).
+// https://bugs.llvm.org/show_bug.cgi?id=13364
+#if defined(__GLIBCXX__)
+namespace std { class type_info; }
+#endif
+#include <string>
+
+#endif  // __STD_STRING_H__
diff --git a/vendor/icu/include/unicode/stringoptions.h b/vendor/icu/include/unicode/stringoptions.h
new file mode 100644
index 0000000000..f735f17229
--- /dev/null
+++ b/vendor/icu/include/unicode/stringoptions.h
@@ -0,0 +1,198 @@
+// © 2017 and later: Unicode, Inc. and others.
+// License & terms of use: http://www.unicode.org/copyright.html
+
+// stringoptions.h
+// created: 2017jun08 Markus W. Scherer
+
+#ifndef __STRINGOPTIONS_H__
+#define __STRINGOPTIONS_H__
+
+#include <unicode/utypes.h>
+
+/**
+ * \file
+ * \brief C API: Bit set option bit constants for various string and character processing functions.
+ */
+
+/**
+ * Option value for case folding: Use default mappings defined in CaseFolding.txt.
+ *
+ * @stable ICU 2.0
+ */
+#define U_FOLD_CASE_DEFAULT 0
+
+/**
+ * Option value for case folding:
+ *
+ * Use the modified set of mappings provided in CaseFolding.txt to handle dotted I
+ * and dotless i appropriately for Turkic languages (tr, az).
+ *
+ * Before Unicode 3.2, CaseFolding.txt contains mappings marked with 'I' that
+ * are to be included for default mappings and
+ * excluded for the Turkic-specific mappings.
+ *
+ * Unicode 3.2 CaseFolding.txt instead contains mappings marked with 'T' that
+ * are to be excluded for default mappings and
+ * included for the Turkic-specific mappings.
+ *
+ * @stable ICU 2.0
+ */
+#define U_FOLD_CASE_EXCLUDE_SPECIAL_I 1
+
+#ifndef U_HIDE_DRAFT_API
+
+/**
+ * Titlecase the string as a whole rather than each word.
+ * (Titlecase only the character at index 0, possibly adjusted.)
+ * Option bits value for titlecasing APIs that take an options bit set.
+ *
+ * It is an error to specify multiple titlecasing iterator options together,
+ * including both an options bit and an explicit BreakIterator.
+ *
+ * @see U_TITLECASE_ADJUST_TO_CASED
+ * @draft ICU 60
+ */
+#define U_TITLECASE_WHOLE_STRING 0x20
+
+/**
+ * Titlecase sentences rather than words.
+ * (Titlecase only the first character of each sentence, possibly adjusted.)
+ * Option bits value for titlecasing APIs that take an options bit set.
+ *
+ * It is an error to specify multiple titlecasing iterator options together,
+ * including both an options bit and an explicit BreakIterator.
+ *
+ * @see U_TITLECASE_ADJUST_TO_CASED
+ * @draft ICU 60
+ */
+#define U_TITLECASE_SENTENCES 0x40
+
+#endif  // U_HIDE_DRAFT_API
+
+/**
+ * Do not lowercase non-initial parts of words when titlecasing.
+ * Option bit for titlecasing APIs that take an options bit set.
+ *
+ * By default, titlecasing will titlecase the character at each
+ * (possibly adjusted) BreakIterator index and
+ * lowercase all other characters up to the next iterator index.
+ * With this option, the other characters will not be modified.
+ *
+ * @see U_TITLECASE_ADJUST_TO_CASED
+ * @see UnicodeString::toTitle
+ * @see CaseMap::toTitle
+ * @see ucasemap_setOptions
+ * @see ucasemap_toTitle
+ * @see ucasemap_utf8ToTitle
+ * @stable ICU 3.8
+ */
+#define U_TITLECASE_NO_LOWERCASE 0x100
+
+/**
+ * Do not adjust the titlecasing BreakIterator indexes;
+ * titlecase exactly the characters at breaks from the iterator.
+ * Option bit for titlecasing APIs that take an options bit set.
+ *
+ * By default, titlecasing will take each break iterator index,
+ * adjust it to the next relevant character (see U_TITLECASE_ADJUST_TO_CASED),
+ * and titlecase that one.
+ *
+ * Other characters are lowercased.
+ *
+ * It is an error to specify multiple titlecasing adjustment options together.
+ *
+ * @see U_TITLECASE_ADJUST_TO_CASED
+ * @see U_TITLECASE_NO_LOWERCASE
+ * @see UnicodeString::toTitle
+ * @see CaseMap::toTitle
+ * @see ucasemap_setOptions
+ * @see ucasemap_toTitle
+ * @see ucasemap_utf8ToTitle
+ * @stable ICU 3.8
+ */
+#define U_TITLECASE_NO_BREAK_ADJUSTMENT 0x200
+
+#ifndef U_HIDE_DRAFT_API
+
+/**
+ * Adjust each titlecasing BreakIterator index to the next cased character.
+ * (See the Unicode Standard, chapter 3, Default Case Conversion, R3 toTitlecase(X).)
+ * Option bit for titlecasing APIs that take an options bit set.
+ *
+ * This used to be the default index adjustment in ICU.
+ * Since ICU 60, the default index adjustment is to the next character that is
+ * a letter, number, symbol, or private use code point.
+ * (Uncased modifier letters are skipped.)
+ * The difference in behavior is small for word titlecasing,
+ * but the new adjustment is much better for whole-string and sentence titlecasing:
+ * It yields "49ers" and "«丰(abc)»" instead of "49Ers" and "«丰(Abc)»".
+ *
+ * It is an error to specify multiple titlecasing adjustment options together.
+ *
+ * @see U_TITLECASE_NO_BREAK_ADJUSTMENT
+ * @draft ICU 60
+ */
+#define U_TITLECASE_ADJUST_TO_CASED 0x400
+
+/**
+ * Option for string transformation functions to not first reset the Edits object.
+ * Used for example in some case-mapping and normalization functions.
+ *
+ * @see CaseMap
+ * @see Edits
+ * @see Normalizer2
+ * @draft ICU 60
+ */
+#define U_EDITS_NO_RESET 0x2000
+
+/**
+ * Omit unchanged text when recording how source substrings
+ * relate to changed and unchanged result substrings.
+ * Used for example in some case-mapping and normalization functions.
+ *
+ * @see CaseMap
+ * @see Edits
+ * @see Normalizer2
+ * @draft ICU 60
+ */
+#define U_OMIT_UNCHANGED_TEXT 0x4000
+
+#endif  // U_HIDE_DRAFT_API
+
+/**
+ * Option bit for u_strCaseCompare, u_strcasecmp, unorm_compare, etc:
+ * Compare strings in code point order instead of code unit order.
+ * @stable ICU 2.2
+ */
+#define U_COMPARE_CODE_POINT_ORDER  0x8000
+
+/**
+ * Option bit for unorm_compare:
+ * Perform case-insensitive comparison.
+ * @stable ICU 2.2
+ */
+#define U_COMPARE_IGNORE_CASE       0x10000
+
+/**
+ * Option bit for unorm_compare:
+ * Both input strings are assumed to fulfill FCD conditions.
+ * @stable ICU 2.2
+ */
+#define UNORM_INPUT_IS_FCD          0x20000
+
+// Related definitions elsewhere.
+// Options that are not meaningful in the same functions
+// can share the same bits.
+//
+// Public:
+// unicode/unorm.h #define UNORM_COMPARE_NORM_OPTIONS_SHIFT 20
+//
+// Internal: (may change or be removed)
+// ucase.h #define _STRCASECMP_OPTIONS_MASK 0xffff
+// ucase.h #define _FOLD_CASE_OPTIONS_MASK 7
+// ucasemap_imp.h #define U_TITLECASE_ITERATOR_MASK 0xe0
+// ucasemap_imp.h #define U_TITLECASE_ADJUSTMENT_MASK 0x600
+// ustr_imp.h #define _STRNCMP_STYLE 0x1000
+// unormcmp.cpp #define _COMPARE_EQUIV 0x80000
+
+#endif  // __STRINGOPTIONS_H__
diff --git a/vendor/icu/include/unicode/stringpiece.h b/vendor/icu/include/unicode/stringpiece.h
new file mode 100644
index 0000000000..fa36fd63f6
--- /dev/null
+++ b/vendor/icu/include/unicode/stringpiece.h
@@ -0,0 +1,224 @@
+// © 2016 and later: Unicode, Inc. and others.
+// License & terms of use: http://www.unicode.org/copyright.html
+// Copyright (C) 2009-2013, International Business Machines
+// Corporation and others. All Rights Reserved.
+//
+// Copyright 2001 and onwards Google Inc.
+// Author: Sanjay Ghemawat
+
+// This code is a contribution of Google code, and the style used here is
+// a compromise between the original Google code and the ICU coding guidelines.
+// For example, data types are ICU-ified (size_t,int->int32_t),
+// and API comments doxygen-ified, but function names and behavior are
+// as in the original, if possible.
+// Assertion-style error handling, not available in ICU, was changed to
+// parameter "pinning" similar to UnicodeString.
+//
+// In addition, this is only a partial port of the original Google code,
+// limited to what was needed so far. The (nearly) complete original code
+// is in the ICU svn repository at icuhtml/trunk/design/strings/contrib
+// (see ICU ticket 6765, r25517).
+
+#ifndef __STRINGPIECE_H__
+#define __STRINGPIECE_H__
+
+/**
+ * \file 
+ * \brief C++ API: StringPiece: Read-only byte string wrapper class.
+ */
+
+#include <unicode/utypes.h>
+#include <unicode/uobject.h>
+#include <unicode/std_string.h>
+
+// Arghh!  I wish C++ literals were "string".
+
+U_NAMESPACE_BEGIN
+
+/**
+ * A string-like object that points to a sized piece of memory.
+ *
+ * We provide non-explicit singleton constructors so users can pass
+ * in a "const char*" or a "string" wherever a "StringPiece" is
+ * expected.
+ *
+ * Functions or methods may use StringPiece parameters to accept either a
+ * "const char*" or a "string" value that will be implicitly converted to a
+ * StringPiece.
+ *
+ * Systematic usage of StringPiece is encouraged as it will reduce unnecessary
+ * conversions from "const char*" to "string" and back again.
+ *
+ * @stable ICU 4.2
+ */
+class U_COMMON_API StringPiece : public UMemory {
+ private:
+  const char*   ptr_;
+  int32_t       length_;
+
+ public:
+  /**
+   * Default constructor, creates an empty StringPiece.
+   * @stable ICU 4.2
+   */
+  StringPiece() : ptr_(NULL), length_(0) { }
+  /**
+   * Constructs from a NUL-terminated const char * pointer.
+   * @param str a NUL-terminated const char * pointer
+   * @stable ICU 4.2
+   */
+  StringPiece(const char* str);
+  /**
+   * Constructs from a std::string.
+   * @stable ICU 4.2
+   */
+  StringPiece(const std::string& str)
+    : ptr_(str.data()), length_(static_cast<int32_t>(str.size())) { }
+  /**
+   * Constructs from a const char * pointer and a specified length.
+   * @param offset a const char * pointer (need not be terminated)
+   * @param len the length of the string; must be non-negative
+   * @stable ICU 4.2
+   */
+  StringPiece(const char* offset, int32_t len) : ptr_(offset), length_(len) { }
+  /**
+   * Substring of another StringPiece.
+   * @param x the other StringPiece
+   * @param pos start position in x; must be non-negative and <= x.length().
+   * @stable ICU 4.2
+   */
+  StringPiece(const StringPiece& x, int32_t pos);
+  /**
+   * Substring of another StringPiece.
+   * @param x the other StringPiece
+   * @param pos start position in x; must be non-negative and <= x.length().
+   * @param len length of the substring;
+   *            must be non-negative and will be pinned to at most x.length() - pos.
+   * @stable ICU 4.2
+   */
+  StringPiece(const StringPiece& x, int32_t pos, int32_t len);
+
+  /**
+   * Returns the string pointer. May be NULL if it is empty.
+   *
+   * data() may return a pointer to a buffer with embedded NULs, and the
+   * returned buffer may or may not be null terminated.  Therefore it is
+   * typically a mistake to pass data() to a routine that expects a NUL
+   * terminated string.
+   * @return the string pointer
+   * @stable ICU 4.2
+   */
+  const char* data() const { return ptr_; }
+  /**
+   * Returns the string length. Same as length().
+   * @return the string length
+   * @stable ICU 4.2
+   */
+  int32_t size() const { return length_; }
+  /**
+   * Returns the string length. Same as size().
+   * @return the string length
+   * @stable ICU 4.2
+   */
+  int32_t length() const { return length_; }
+  /**
+   * Returns whether the string is empty.
+   * @return TRUE if the string is empty
+   * @stable ICU 4.2
+   */
+  UBool empty() const { return length_ == 0; }
+
+  /**
+   * Sets to an empty string.
+   * @stable ICU 4.2
+   */
+  void clear() { ptr_ = NULL; length_ = 0; }
+
+  /**
+   * Reset the stringpiece to refer to new data.
+   * @param xdata pointer the new string data.  Need not be nul terminated.
+   * @param len the length of the new data
+   * @stable ICU 4.8
+   */
+  void set(const char* xdata, int32_t len) { ptr_ = xdata; length_ = len; }
+
+  /**
+   * Reset the stringpiece to refer to new data.
+   * @param str a pointer to a NUL-terminated string. 
+   * @stable ICU 4.8
+   */
+  void set(const char* str);
+
+  /**
+   * Removes the first n string units.
+   * @param n prefix length, must be non-negative and <=length()
+   * @stable ICU 4.2
+   */
+  void remove_prefix(int32_t n) {
+    if (n >= 0) {
+      if (n > length_) {
+        n = length_;
+      }
+      ptr_ += n;
+      length_ -= n;
+    }
+  }
+
+  /**
+   * Removes the last n string units.
+   * @param n suffix length, must be non-negative and <=length()
+   * @stable ICU 4.2
+   */
+  void remove_suffix(int32_t n) {
+    if (n >= 0) {
+      if (n <= length_) {
+        length_ -= n;
+      } else {
+        length_ = 0;
+      }
+    }
+  }
+
+  /**
+   * Maximum integer, used as a default value for substring methods.
+   * @stable ICU 4.2
+   */
+  static const int32_t npos; // = 0x7fffffff;
+
+  /**
+   * Returns a substring of this StringPiece.
+   * @param pos start position; must be non-negative and <= length().
+   * @param len length of the substring;
+   *            must be non-negative and will be pinned to at most length() - pos.
+   * @return the substring StringPiece
+   * @stable ICU 4.2
+   */
+  StringPiece substr(int32_t pos, int32_t len = npos) const {
+    return StringPiece(*this, pos, len);
+  }
+};
+
+/**
+ * Global operator == for StringPiece
+ * @param x The first StringPiece to compare.
+ * @param y The second StringPiece to compare.
+ * @return TRUE if the string data is equal
+ * @stable ICU 4.8
+ */
+U_EXPORT UBool U_EXPORT2 
+operator==(const StringPiece& x, const StringPiece& y);
+
+/**
+ * Global operator != for StringPiece
+ * @param x The first StringPiece to compare.
+ * @param y The second StringPiece to compare.
+ * @return TRUE if the string data is not equal
+ * @stable ICU 4.8
+ */
+inline UBool operator!=(const StringPiece& x, const StringPiece& y) {
+  return !(x == y);
+}
+
+U_NAMESPACE_END
+
+#endif  // __STRINGPIECE_H__
diff --git a/vendor/icu/include/unicode/ubidi.h b/vendor/icu/include/unicode/ubidi.h
new file mode 100644
index 0000000000..9b11369380
--- /dev/null
+++ b/vendor/icu/include/unicode/ubidi.h
@@ -0,0 +1,2201 @@
+// © 2016 and later: Unicode, Inc. and others.
+// License & terms of use: http://www.unicode.org/copyright.html
+/*
+******************************************************************************
+*
+*   Copyright (C) 1999-2013, International Business Machines
+*   Corporation and others.  All Rights Reserved.
+*
+******************************************************************************
+*   file name:  ubidi.h
+*   encoding:   UTF-8
+*   tab size:   8 (not used)
+*   indentation:4
+*
+*   created on: 1999jul27
+*   created by: Markus W. Scherer, updated by Matitiahu Allouche
+*/
+
+#ifndef UBIDI_H
+#define UBIDI_H
+
+#include <unicode/utypes.h>
+#include <unicode/uchar.h>
+#include <unicode/localpointer.h>
+
+/**
+ *\file
+ * \brief C API: Bidi algorithm
+ *
+ * <h2>Bidi algorithm for ICU</h2>
+ *
+ * This is an implementation of the Unicode Bidirectional Algorithm.
+ * The algorithm is defined in the
+ * <a href="http://www.unicode.org/unicode/reports/tr9/">Unicode Standard Annex #9</a>.<p>
+ *
+ * Note: Libraries that perform a bidirectional algorithm and
+ * reorder strings accordingly are sometimes called "Storage Layout Engines".
+ * ICU's Bidi and shaping (u_shapeArabic()) APIs can be used at the core of such
+ * "Storage Layout Engines".
+ *
+ * <h3>General remarks about the API:</h3>
+ *
+ * In functions with an error code parameter,
+ * the <code>pErrorCode</code> pointer must be valid
+ * and the value that it points to must not indicate a failure before
+ * the function call. Otherwise, the function returns immediately.
+ * After the function call, the value indicates success or failure.<p>
+ *
+ * The &quot;limit&quot; of a sequence of characters is the position just after their
+ * last character, i.e., one more than that position.<p>
+ *
+ * Some of the API functions provide access to &quot;runs&quot;.
+ * Such a &quot;run&quot; is defined as a sequence of characters
+ * that are at the same embedding level
+ * after performing the Bidi algorithm.<p>
+ *
+ * @author Markus W. Scherer
+ * @version 1.0
+ *
+ *
+ * <h4> Sample code for the ICU Bidi API </h4>
+ *
+ * <h5>Rendering a paragraph with the ICU Bidi API</h5>
+ *
+ * This is (hypothetical) sample code that illustrates
+ * how the ICU Bidi API could be used to render a paragraph of text.
+ * Rendering code depends highly on the graphics system,
+ * therefore this sample code must make a lot of assumptions,
+ * which may or may not match any existing graphics system's properties.
+ *
+ * <p>The basic assumptions are:</p>
+ * <ul>
+ * <li>Rendering is done from left to right on a horizontal line.</li>
+ * <li>A run of single-style, unidirectional text can be rendered at once.</li>
+ * <li>Such a run of text is passed to the graphics system with
+ *     characters (code units) in logical order.</li>
+ * <li>The line-breaking algorithm is very complicated
+ *     and Locale-dependent -
+ *     and therefore its implementation omitted from this sample code.</li>
+ * </ul>
+ *
+ * <pre>
+ * \code
+ *#include "unicode/ubidi.h"
+ *
+ *typedef enum {
+ *     styleNormal=0, styleSelected=1,
+ *     styleBold=2, styleItalics=4,
+ *     styleSuper=8, styleSub=16
+ *} Style;
+ *
+ *typedef struct { int32_t limit; Style style; } StyleRun;
+ *
+ *int getTextWidth(const UChar *text, int32_t start, int32_t limit,
+ *                  const StyleRun *styleRuns, int styleRunCount);
+ *
+ * // set *pLimit and *pStyleRunLimit for a line
+ * // from text[start] and from styleRuns[styleRunStart]
+ * // using ubidi_getLogicalRun(para, ...)
+ *void getLineBreak(const UChar *text, int32_t start, int32_t *pLimit,
+ *                  UBiDi *para,
+ *                  const StyleRun *styleRuns, int styleRunStart, int *pStyleRunLimit,
+ *                  int *pLineWidth);
+ *
+ * // render runs on a line sequentially, always from left to right
+ *
+ * // prepare rendering a new line
+ * void startLine(UBiDiDirection textDirection, int lineWidth);
+ *
+ * // render a run of text and advance to the right by the run width
+ * // the text[start..limit-1] is always in logical order
+ * void renderRun(const UChar *text, int32_t start, int32_t limit,
+ *               UBiDiDirection textDirection, Style style);
+ *
+ * // We could compute a cross-product
+ * // from the style runs with the directional runs
+ * // and then reorder it.
+ * // Instead, here we iterate over each run type
+ * // and render the intersections -
+ * // with shortcuts in simple (and common) cases.
+ * // renderParagraph() is the main function.
+ *
+ * // render a directional run with
+ * // (possibly) multiple style runs intersecting with it
+ * void renderDirectionalRun(const UChar *text,
+ *                           int32_t start, int32_t limit,
+ *                           UBiDiDirection direction,
+ *                           const StyleRun *styleRuns, int styleRunCount) {
+ *     int i;
+ *
+ *     // iterate over style runs
+ *     if(direction==UBIDI_LTR) {
+ *         int styleLimit;
+ *
+ *         for(i=0; i<styleRunCount; ++i) {
+ *             styleLimit=styleRun[i].limit;
+ *             if(start<styleLimit) {
+ *                 if(styleLimit>limit) { styleLimit=limit; }
+ *                 renderRun(text, start, styleLimit,
+ *                           direction, styleRun[i].style);
+ *                 if(styleLimit==limit) { break; }
+ *                 start=styleLimit;
+ *             }
+ *         }
+ *     } else {
+ *         int styleStart;
+ *
+ *         for(i=styleRunCount-1; i>=0; --i) {
+ *             if(i>0) {
+ *                 styleStart=styleRun[i-1].limit;
+ *             } else {
+ *                 styleStart=0;
+ *             }
+ *             if(limit>=styleStart) {
+ *                 if(styleStart<start) { styleStart=start; }
+ *                 renderRun(text, styleStart, limit,
+ *                           direction, styleRun[i].style);
+ *                 if(styleStart==start) { break; }
+ *                 limit=styleStart;
+ *             }
+ *         }
+ *     }
+ * }
+ *
+ * // the line object represents text[start..limit-1]
+ * void renderLine(UBiDi *line, const UChar *text,
+ *                 int32_t start, int32_t limit,
+ *                 const StyleRun *styleRuns, int styleRunCount) {
+ *     UBiDiDirection direction=ubidi_getDirection(line);
+ *     if(direction!=UBIDI_MIXED) {
+ *         // unidirectional
+ *         if(styleRunCount<=1) {
+ *             renderRun(text, start, limit, direction, styleRuns[0].style);
+ *         } else {
+ *             renderDirectionalRun(text, start, limit,
+ *                                  direction, styleRuns, styleRunCount);
+ *         }
+ *     } else {
+ *         // mixed-directional
+ *         int32_t count, i, length;
+ *         UBiDiLevel level;
+ *
+ *         count=ubidi_countRuns(para, pErrorCode);
+ *         if(U_SUCCESS(*pErrorCode)) {
+ *             if(styleRunCount<=1) {
+ *                 Style style=styleRuns[0].style;
+ *
+ *                 // iterate over directional runs
+ *                for(i=0; i<count; ++i) {
+ *                    direction=ubidi_getVisualRun(para, i, &start, &length);
+ *                     renderRun(text, start, start+length, direction, style);
+ *                }
+ *             } else {
+ *                 int32_t j;
+ *
+ *                 // iterate over both directional and style runs
+ *                 for(i=0; i<count; ++i) {
+ *                     direction=ubidi_getVisualRun(line, i, &start, &length);
+ *                     renderDirectionalRun(text, start, start+length,
+ *                                          direction, styleRuns, styleRunCount);
+ *                 }
+ *             }
+ *         }
+ *     }
+ * }
+ *
+ *void renderParagraph(const UChar *text, int32_t length,
+ *                     UBiDiDirection textDirection,
+ *                      const StyleRun *styleRuns, int styleRunCount,
+ *                      int lineWidth,
+ *                      UErrorCode *pErrorCode) {
+ *     UBiDi *para;
+ *
+ *     if(pErrorCode==NULL || U_FAILURE(*pErrorCode) || length<=0) {
+ *         return;
+ *     }
+ *
+ *     para=ubidi_openSized(length, 0, pErrorCode);
+ *     if(para==NULL) { return; }
+ *
+ *     ubidi_setPara(para, text, length,
+ *                   textDirection ? UBIDI_DEFAULT_RTL : UBIDI_DEFAULT_LTR,
+ *                   NULL, pErrorCode);
+ *     if(U_SUCCESS(*pErrorCode)) {
+ *         UBiDiLevel paraLevel=1&ubidi_getParaLevel(para);
+ *         StyleRun styleRun={ length, styleNormal };
+ *         int width;
+ *
+ *         if(styleRuns==NULL || styleRunCount<=0) {
+ *            styleRunCount=1;
+ *             styleRuns=&styleRun;
+ *         }
+ *
+ *        // assume styleRuns[styleRunCount-1].limit>=length
+ *
+ *         width=getTextWidth(text, 0, length, styleRuns, styleRunCount);
+ *         if(width<=lineWidth) {
+ *             // everything fits onto one line
+ *
+ *            // prepare rendering a new line from either left or right
+ *             startLine(paraLevel, width);
+ *
+ *             renderLine(para, text, 0, length,
+ *                        styleRuns, styleRunCount);
+ *         } else {
+ *             UBiDi *line;
+ *
+ *             // we need to render several lines
+ *             line=ubidi_openSized(length, 0, pErrorCode);
+ *             if(line!=NULL) {
+ *                 int32_t start=0, limit;
+ *                 int styleRunStart=0, styleRunLimit;
+ *
+ *                 for(;;) {
+ *                     limit=length;
+ *                     styleRunLimit=styleRunCount;
+ *                     getLineBreak(text, start, &limit, para,
+ *                                  styleRuns, styleRunStart, &styleRunLimit,
+ *                                 &width);
+ *                     ubidi_setLine(para, start, limit, line, pErrorCode);
+ *                     if(U_SUCCESS(*pErrorCode)) {
+ *                         // prepare rendering a new line
+ *                         // from either left or right
+ *                         startLine(paraLevel, width);
+ *
+ *                         renderLine(line, text, start, limit,
+ *                                    styleRuns+styleRunStart,
+ *                                    styleRunLimit-styleRunStart);
+ *                     }
+ *                     if(limit==length) { break; }
+ *                     start=limit;
+ *                     styleRunStart=styleRunLimit-1;
+ *                     if(start>=styleRuns[styleRunStart].limit) {
+ *                         ++styleRunStart;
+ *                     }
+ *                 }
+ *
+ *                 ubidi_close(line);
+ *             }
+ *        }
+ *    }
+ *
+ *     ubidi_close(para);
+ *}
+ *\endcode
+ * </pre>
+ */
+
+/*DOCXX_TAG*/
+/*@{*/
+
+/**
+ * UBiDiLevel is the type of the level values in this
+ * Bidi implementation.
+ * It holds an embedding level and indicates the visual direction
+ * by its bit&nbsp;0 (even/odd value).<p>
+ *
+ * It can also hold non-level values for the
+ * <code>paraLevel</code> and <code>embeddingLevels</code>
+ * arguments of <code>ubidi_setPara()</code>; there:
+ * <ul>
+ * <li>bit&nbsp;7 of an <code>embeddingLevels[]</code>
+ * value indicates whether the using application is
+ * specifying the level of a character to <i>override</i> whatever the
+ * Bidi implementation would resolve it to.</li>
+ * <li><code>paraLevel</code> can be set to the
+ * pseudo-level values <code>UBIDI_DEFAULT_LTR</code>
+ * and <code>UBIDI_DEFAULT_RTL</code>.</li>
+ * </ul>
+ *
+ * @see ubidi_setPara
+ *
+ * <p>The related constants are not real, valid level values.
+ * <code>UBIDI_DEFAULT_XXX</code> can be used to specify
+ * a default for the paragraph level for
+ * when the <code>ubidi_setPara()</code> function
+ * shall determine it but there is no
+ * strongly typed character in the input.<p>
+ *
+ * Note that the value for <code>UBIDI_DEFAULT_LTR</code> is even
+ * and the one for <code>UBIDI_DEFAULT_RTL</code> is odd,
+ * just like with normal LTR and RTL level values -
+ * these special values are designed that way. Also, the implementation
+ * assumes that UBIDI_MAX_EXPLICIT_LEVEL is odd.
+ *
+ * @see UBIDI_DEFAULT_LTR
+ * @see UBIDI_DEFAULT_RTL
+ * @see UBIDI_LEVEL_OVERRIDE
+ * @see UBIDI_MAX_EXPLICIT_LEVEL
+ * @stable ICU 2.0
+ */
+typedef uint8_t UBiDiLevel;
+
+/** Paragraph level setting.<p>
+ *
+ * Constant indicating that the base direction depends on the first strong
+ * directional character in the text according to the Unicode Bidirectional
+ * Algorithm. If no strong directional character is present,
+ * then set the paragraph level to 0 (left-to-right).<p>
+ *
+ * If this value is used in conjunction with reordering modes
+ * <code>UBIDI_REORDER_INVERSE_LIKE_DIRECT</code> or
+ * <code>UBIDI_REORDER_INVERSE_FOR_NUMBERS_SPECIAL</code>, the text to reorder
+ * is assumed to be visual LTR, and the text after reordering is required
+ * to be the corresponding logical string with appropriate contextual
+ * direction. The direction of the result string will be RTL if either
+ * the righmost or leftmost strong character of the source text is RTL
+ * or Arabic Letter, the direction will be LTR otherwise.<p>
+ *
+ * If reordering option <code>UBIDI_OPTION_INSERT_MARKS</code> is set, an RLM may
+ * be added at the beginning of the result string to ensure round trip
+ * (that the result string, when reordered back to visual, will produce
+ * the original source text).
+ * @see UBIDI_REORDER_INVERSE_LIKE_DIRECT
+ * @see UBIDI_REORDER_INVERSE_FOR_NUMBERS_SPECIAL
+ * @stable ICU 2.0
+ */
+#define UBIDI_DEFAULT_LTR 0xfe
+
+/** Paragraph level setting.<p>
+ *
+ * Constant indicating that the base direction depends on the first strong
+ * directional character in the text according to the Unicode Bidirectional
+ * Algorithm. If no strong directional character is present,
+ * then set the paragraph level to 1 (right-to-left).<p>
+ *
+ * If this value is used in conjunction with reordering modes
+ * <code>UBIDI_REORDER_INVERSE_LIKE_DIRECT</code> or
+ * <code>UBIDI_REORDER_INVERSE_FOR_NUMBERS_SPECIAL</code>, the text to reorder
+ * is assumed to be visual LTR, and the text after reordering is required
+ * to be the corresponding logical string with appropriate contextual
+ * direction. The direction of the result string will be RTL if either
+ * the righmost or leftmost strong character of the source text is RTL
+ * or Arabic Letter, or if the text contains no strong character;
+ * the direction will be LTR otherwise.<p>
+ *
+ * If reordering option <code>UBIDI_OPTION_INSERT_MARKS</code> is set, an RLM may
+ * be added at the beginning of the result string to ensure round trip
+ * (that the result string, when reordered back to visual, will produce
+ * the original source text).
+ * @see UBIDI_REORDER_INVERSE_LIKE_DIRECT
+ * @see UBIDI_REORDER_INVERSE_FOR_NUMBERS_SPECIAL
+ * @stable ICU 2.0
+ */
+#define UBIDI_DEFAULT_RTL 0xff
+
+/**
+ * Maximum explicit embedding level.
+ * (The maximum resolved level can be up to <code>UBIDI_MAX_EXPLICIT_LEVEL+1</code>).
+ * @stable ICU 2.0
+ */
+#define UBIDI_MAX_EXPLICIT_LEVEL 125
+
+/** Bit flag for level input.
+ *  Overrides directional properties.
+ * @stable ICU 2.0
+ */
+#define UBIDI_LEVEL_OVERRIDE 0x80
+
+/**
+ * Special value which can be returned by the mapping functions when a logical
+ * index has no corresponding visual index or vice-versa. This may happen
+ * for the logical-to-visual mapping of a Bidi control when option
+ * <code>#UBIDI_OPTION_REMOVE_CONTROLS</code> is specified. This can also happen
+ * for the visual-to-logical mapping of a Bidi mark (LRM or RLM) inserted
+ * by option <code>#UBIDI_OPTION_INSERT_MARKS</code>.
+ * @see ubidi_getVisualIndex
+ * @see ubidi_getVisualMap
+ * @see ubidi_getLogicalIndex
+ * @see ubidi_getLogicalMap
+ * @stable ICU 3.6
+ */
+#define UBIDI_MAP_NOWHERE   (-1)
+
+/**
+ * <code>UBiDiDirection</code> values indicate the text direction.
+ * @stable ICU 2.0
+ */
+enum UBiDiDirection {
+  /** Left-to-right text. This is a 0 value.
+   * <ul>
+   * <li>As return value for <code>ubidi_getDirection()</code>, it means
+   *     that the source string contains no right-to-left characters, or
+   *     that the source string is empty and the paragraph level is even.
+   * <li> As return value for <code>ubidi_getBaseDirection()</code>, it
+   *      means that the first strong character of the source string has
+   *      a left-to-right direction.
+   * </ul>
+   * @stable ICU 2.0
+   */
+  UBIDI_LTR,
+  /** Right-to-left text. This is a 1 value.
+   * <ul>
+   * <li>As return value for <code>ubidi_getDirection()</code>, it means
+   *     that the source string contains no left-to-right characters, or
+   *     that the source string is empty and the paragraph level is odd.
+   * <li> As return value for <code>ubidi_getBaseDirection()</code>, it
+   *      means that the first strong character of the source string has
+   *      a right-to-left direction.
+   * </ul>
+   * @stable ICU 2.0
+   */
+  UBIDI_RTL,
+  /** Mixed-directional text.
+   * <p>As return value for <code>ubidi_getDirection()</code>, it means
+   *    that the source string contains both left-to-right and
+   *    right-to-left characters.
+   * @stable ICU 2.0
+   */
+  UBIDI_MIXED,
+  /** No strongly directional text.
+   * <p>As return value for <code>ubidi_getBaseDirection()</code>, it means
+   *    that the source string is missing or empty, or contains neither left-to-right
+   *    nor right-to-left characters.
+   * @stable ICU 4.6
+   */
+  UBIDI_NEUTRAL
+};
+
+/** @stable ICU 2.0 */
+typedef enum UBiDiDirection UBiDiDirection;
+
+/**
+ * Forward declaration of the <code>UBiDi</code> structure for the declaration of
+ * the API functions. Its fields are implementation-specific.<p>
+ * This structure holds information about a paragraph (or multiple paragraphs)
+ * of text with Bidi-algorithm-related details, or about one line of
+ * such a paragraph.<p>
+ * Reordering can be done on a line, or on one or more paragraphs which are
+ * then interpreted each as one single line.
+ * @stable ICU 2.0
+ */
+struct UBiDi;
+
+/** @stable ICU 2.0 */
+typedef struct UBiDi UBiDi;
+
+/**
+ * Allocate a <code>UBiDi</code> structure.
+ * Such an object is initially empty. It is assigned
+ * the Bidi properties of a piece of text containing one or more paragraphs
+ * by <code>ubidi_setPara()</code>
+ * or the Bidi properties of a line within a paragraph by
+ * <code>ubidi_setLine()</code>.<p>
+ * This object can be reused for as long as it is not deallocated
+ * by calling <code>ubidi_close()</code>.<p>
+ * <code>ubidi_setPara()</code> and <code>ubidi_setLine()</code> will allocate
+ * additional memory for internal structures as necessary.
+ *
+ * @return An empty <code>UBiDi</code> object.
+ * @stable ICU 2.0
+ */
+U_STABLE UBiDi * U_EXPORT2
+ubidi_open(void);
+
+/**
+ * Allocate a <code>UBiDi</code> structure with preallocated memory
+ * for internal structures.
+ * This function provides a <code>UBiDi</code> object like <code>ubidi_open()</code>
+ * with no arguments, but it also preallocates memory for internal structures
+ * according to the sizings supplied by the caller.<p>
+ * Subsequent functions will not allocate any more memory, and are thus
+ * guaranteed not to fail because of lack of memory.<p>
+ * The preallocation can be limited to some of the internal memory
+ * by setting some values to 0 here. That means that if, e.g.,
+ * <code>maxRunCount</code> cannot be reasonably predetermined and should not
+ * be set to <code>maxLength</code> (the only failproof value) to avoid
+ * wasting memory, then <code>maxRunCount</code> could be set to 0 here
+ * and the internal structures that are associated with it will be allocated
+ * on demand, just like with <code>ubidi_open()</code>.
+ *
+ * @param maxLength is the maximum text or line length that internal memory
+ *        will be preallocated for. An attempt to associate this object with a
+ *        longer text will fail, unless this value is 0, which leaves the allocation
+ *        up to the implementation.
+ *
+ * @param maxRunCount is the maximum anticipated number of same-level runs
+ *        that internal memory will be preallocated for. An attempt to access
+ *        visual runs on an object that was not preallocated for as many runs
+ *        as the text was actually resolved to will fail,
+ *        unless this value is 0, which leaves the allocation up to the implementation.<br><br>
+ *        The number of runs depends on the actual text and maybe anywhere between
+ *        1 and <code>maxLength</code>. It is typically small.
+ *
+ * @param pErrorCode must be a valid pointer to an error code value.
+ *
+ * @return An empty <code>UBiDi</code> object with preallocated memory.
+ * @stable ICU 2.0
+ */
+U_STABLE UBiDi * U_EXPORT2
+ubidi_openSized(int32_t maxLength, int32_t maxRunCount, UErrorCode *pErrorCode);
+
+/**
+ * <code>ubidi_close()</code> must be called to free the memory
+ * associated with a UBiDi object.<p>
+ *
+ * <strong>Important: </strong>
+ * A parent <code>UBiDi</code> object must not be destroyed or reused if
+ * it still has children.
+ * If a <code>UBiDi</code> object has become the <i>child</i>
+ * of another one (its <i>parent</i>) by calling
+ * <code>ubidi_setLine()</code>, then the child object must
+ * be destroyed (closed) or reused (by calling
+ * <code>ubidi_setPara()</code> or <code>ubidi_setLine()</code>)
+ * before the parent object.
+ *
+ * @param pBiDi is a <code>UBiDi</code> object.
+ *
+ * @see ubidi_setPara
+ * @see ubidi_setLine
+ * @stable ICU 2.0
+ */
+U_STABLE void U_EXPORT2
+ubidi_close(UBiDi *pBiDi);
+
+#if U_SHOW_CPLUSPLUS_API
+
+U_NAMESPACE_BEGIN
+
+/**
+ * \class LocalUBiDiPointer
+ * "Smart pointer" class, closes a UBiDi via ubidi_close().
+ * For most methods see the LocalPointerBase base class.
+ *
+ * @see LocalPointerBase
+ * @see LocalPointer
+ * @stable ICU 4.4
+ */
+U_DEFINE_LOCAL_OPEN_POINTER(LocalUBiDiPointer, UBiDi, ubidi_close);
+
+U_NAMESPACE_END
+
+#endif
+
+/**
+ * Modify the operation of the Bidi algorithm such that it
+ * approximates an "inverse Bidi" algorithm. This function
+ * must be called before <code>ubidi_setPara()</code>.
+ *
+ * <p>The normal operation of the Bidi algorithm as described
+ * in the Unicode Technical Report is to take text stored in logical
+ * (keyboard, typing) order and to determine the reordering of it for visual
+ * rendering.
+ * Some legacy systems store text in visual order, and for operations
+ * with standard, Unicode-based algorithms, the text needs to be transformed
+ * to logical order. This is effectively the inverse algorithm of the
+ * described Bidi algorithm. Note that there is no standard algorithm for
+ * this "inverse Bidi" and that the current implementation provides only an
+ * approximation of "inverse Bidi".</p>
+ *
+ * <p>With <code>isInverse</code> set to <code>TRUE</code>,
+ * this function changes the behavior of some of the subsequent functions
+ * in a way that they can be used for the inverse Bidi algorithm.
+ * Specifically, runs of text with numeric characters will be treated in a
+ * special way and may need to be surrounded with LRM characters when they are
+ * written in reordered sequence.</p>
+ *
+ * <p>Output runs should be retrieved using <code>ubidi_getVisualRun()</code>.
+ * Since the actual input for "inverse Bidi" is visually ordered text and
+ * <code>ubidi_getVisualRun()</code> gets the reordered runs, these are actually
+ * the runs of the logically ordered output.</p>
+ *
+ * <p>Calling this function with argument <code>isInverse</code> set to
+ * <code>TRUE</code> is equivalent to calling
+ * <code>ubidi_setReorderingMode</code> with argument
+ * <code>reorderingMode</code>
+ * set to <code>#UBIDI_REORDER_INVERSE_NUMBERS_AS_L</code>.<br>
+ * Calling this function with argument <code>isInverse</code> set to
+ * <code>FALSE</code> is equivalent to calling
+ * <code>ubidi_setReorderingMode</code> with argument
+ * <code>reorderingMode</code>
+ * set to <code>#UBIDI_REORDER_DEFAULT</code>.
+ *
+ * @param pBiDi is a <code>UBiDi</code> object.
+ *
+ * @param isInverse specifies "forward" or "inverse" Bidi operation.
+ *
+ * @see ubidi_setPara
+ * @see ubidi_writeReordered
+ * @see ubidi_setReorderingMode
+ * @stable ICU 2.0
+ */
+U_STABLE void U_EXPORT2
+ubidi_setInverse(UBiDi *pBiDi, UBool isInverse);
+
+/**
+ * Is this Bidi object set to perform the inverse Bidi algorithm?
+ * <p>Note: calling this function after setting the reordering mode with
+ * <code>ubidi_setReorderingMode</code> will return <code>TRUE</code> if the
+ * reordering mode was set to <code>#UBIDI_REORDER_INVERSE_NUMBERS_AS_L</code>,
+ * <code>FALSE</code> for all other values.</p>
+ *
+ * @param pBiDi is a <code>UBiDi</code> object.
+ * @return TRUE if the Bidi object is set to perform the inverse Bidi algorithm
+ * by handling numbers as L.
+ *
+ * @see ubidi_setInverse
+ * @see ubidi_setReorderingMode
+ * @stable ICU 2.0
+ */
+
+U_STABLE UBool U_EXPORT2
+ubidi_isInverse(UBiDi *pBiDi);
+
+/**
+ * Specify whether block separators must be allocated level zero,
+ * so that successive paragraphs will progress from left to right.
+ * This function must be called before <code>ubidi_setPara()</code>.
+ * Paragraph separators (B) may appear in the text.  Setting them to level zero
+ * means that all paragraph separators (including one possibly appearing
+ * in the last text position) are kept in the reordered text after the text
+ * that they follow in the source text.
+ * When this feature is not enabled, a paragraph separator at the last
+ * position of the text before reordering will go to the first position
+ * of the reordered text when the paragraph level is odd.
+ *
+ * @param pBiDi is a <code>UBiDi</code> object.
+ *
+ * @param orderParagraphsLTR specifies whether paragraph separators (B) must
+ * receive level 0, so that successive paragraphs progress from left to right.
+ *
+ * @see ubidi_setPara
+ * @stable ICU 3.4
+ */
+U_STABLE void U_EXPORT2
+ubidi_orderParagraphsLTR(UBiDi *pBiDi, UBool orderParagraphsLTR);
+
+/**
+ * Is this Bidi object set to allocate level 0 to block separators so that
+ * successive paragraphs progress from left to right?
+ *
+ * @param pBiDi is a <code>UBiDi</code> object.
+ * @return TRUE if the Bidi object is set to allocate level 0 to block
+ *         separators.
+ *
+ * @see ubidi_orderParagraphsLTR
+ * @stable ICU 3.4
+ */
+U_STABLE UBool U_EXPORT2
+ubidi_isOrderParagraphsLTR(UBiDi *pBiDi);
+
+/**
+ * <code>UBiDiReorderingMode</code> values indicate which variant of the Bidi
+ * algorithm to use.
+ *
+ * @see ubidi_setReorderingMode
+ * @stable ICU 3.6
+ */
+typedef enum UBiDiReorderingMode {
+    /** Regular Logical to Visual Bidi algorithm according to Unicode.
+      * This is a 0 value.
+      * @stable ICU 3.6 */
+    UBIDI_REORDER_DEFAULT = 0,
+    /** Logical to Visual algorithm which handles numbers in a way which
+      * mimics the behavior of Windows XP.
+      * @stable ICU 3.6 */
+    UBIDI_REORDER_NUMBERS_SPECIAL,
+    /** Logical to Visual algorithm grouping numbers with adjacent R characters
+      * (reversible algorithm).
+      * @stable ICU 3.6 */
+    UBIDI_REORDER_GROUP_NUMBERS_WITH_R,
+    /** Reorder runs only to transform a Logical LTR string to the Logical RTL
+      * string with the same display, or vice-versa.<br>
+      * If this mode is set together with option
+      * <code>#UBIDI_OPTION_INSERT_MARKS</code>, some Bidi controls in the source
+      * text may be removed and other controls may be added to produce the
+      * minimum combination which has the required display.
+      * @stable ICU 3.6 */
+    UBIDI_REORDER_RUNS_ONLY,
+    /** Visual to Logical algorithm which handles numbers like L
+      * (same algorithm as selected by <code>ubidi_setInverse(TRUE)</code>.
+      * @see ubidi_setInverse
+      * @stable ICU 3.6 */
+    UBIDI_REORDER_INVERSE_NUMBERS_AS_L,
+    /** Visual to Logical algorithm equivalent to the regular Logical to Visual
+      * algorithm.
+      * @stable ICU 3.6 */
+    UBIDI_REORDER_INVERSE_LIKE_DIRECT,
+    /** Inverse Bidi (Visual to Logical) algorithm for the
+      * <code>UBIDI_REORDER_NUMBERS_SPECIAL</code> Bidi algorithm.
+      * @stable ICU 3.6 */
+    UBIDI_REORDER_INVERSE_FOR_NUMBERS_SPECIAL,
+#ifndef U_HIDE_DEPRECATED_API
+    /**
+     * Number of values for reordering mode.
+     * @deprecated ICU 58 The numeric value may change over time, see ICU ticket #12420.
+     */
+    UBIDI_REORDER_COUNT
+#endif  // U_HIDE_DEPRECATED_API
+} UBiDiReorderingMode;
+
+/**
+ * Modify the operation of the Bidi algorithm such that it implements some
+ * variant to the basic Bidi algorithm or approximates an "inverse Bidi"
+ * algorithm, depending on different values of the "reordering mode".
+ * This function must be called before <code>ubidi_setPara()</code>, and stays
+ * in effect until called again with a different argument.
+ *
+ * <p>The normal operation of the Bidi algorithm as described
+ * in the Unicode Standard Annex #9 is to take text stored in logical
+ * (keyboard, typing) order and to determine how to reorder it for visual
+ * rendering.</p>
+ *
+ * <p>With the reordering mode set to a value other than
+ * <code>#UBIDI_REORDER_DEFAULT</code>, this function changes the behavior of
+ * some of the subsequent functions in a way such that they implement an
+ * inverse Bidi algorithm or some other algorithm variants.</p>
+ *
+ * <p>Some legacy systems store text in visual order, and for operations
+ * with standard, Unicode-based algorithms, the text needs to be transformed
+ * into logical order. This is effectively the inverse algorithm of the
+ * described Bidi algorithm. Note that there is no standard algorithm for
+ * this "inverse Bidi", so a number of variants are implemented here.</p>
+ *
+ * <p>In other cases, it may be desirable to emulate some variant of the
+ * Logical to Visual algorithm (e.g. one used in MS Windows), or perform a
+ * Logical to Logical transformation.</p>
+ *
+ * <ul>
+ * <li>When the reordering mode is set to <code>#UBIDI_REORDER_DEFAULT</code>,
+ * the standard Bidi Logical to Visual algorithm is applied.</li>
+ *
+ * <li>When the reordering mode is set to
+ * <code>#UBIDI_REORDER_NUMBERS_SPECIAL</code>,
+ * the algorithm used to perform Bidi transformations when calling
+ * <code>ubidi_setPara</code> should approximate the algorithm used in
+ * Microsoft Windows XP rather than strictly conform to the Unicode Bidi
+ * algorithm.
+ * <br>
+ * The differences between the basic algorithm and the algorithm addressed
+ * by this option are as follows:
+ * <ul>
+ *   <li>Within text at an even embedding level, the sequence "123AB"
+ *   (where AB represent R or AL letters) is transformed to "123BA" by the
+ *   Unicode algorithm and to "BA123" by the Windows algorithm.</li>
+ *   <li>Arabic-Indic numbers (AN) are handled by the Windows algorithm just
+ *   like regular numbers (EN).</li>
+ * </ul></li>
+ *
+ * <li>When the reordering mode is set to
+ * <code>#UBIDI_REORDER_GROUP_NUMBERS_WITH_R</code>,
+ * numbers located between LTR text and RTL text are associated with the RTL
+ * text. For instance, an LTR paragraph with content "abc 123 DEF" (where
+ * upper case letters represent RTL characters) will be transformed to
+ * "abc FED 123" (and not "abc 123 FED"), "DEF 123 abc" will be transformed
+ * to "123 FED abc" and "123 FED abc" will be transformed to "DEF 123 abc".
+ * This makes the algorithm reversible and makes it useful when round trip
+ * (from visual to logical and back to visual) must be achieved without
+ * adding LRM characters. However, this is a variation from the standard
+ * Unicode Bidi algorithm.<br>
+ * The source text should not contain Bidi control characters other than LRM
+ * or RLM.</li>
+ *
+ * <li>When the reordering mode is set to
+ * <code>#UBIDI_REORDER_RUNS_ONLY</code>,
+ * a "Logical to Logical" transformation must be performed:
+ * <ul>
+ * <li>If the default text level of the source text (argument <code>paraLevel</code>
+ * in <code>ubidi_setPara</code>) is even, the source text will be handled as
+ * LTR logical text and will be transformed to the RTL logical text which has
+ * the same LTR visual display.</li>
+ * <li>If the default level of the source text is odd, the source text
+ * will be handled as RTL logical text and will be transformed to the
+ * LTR logical text which has the same LTR visual display.</li>
+ * </ul>
+ * This mode may be needed when logical text which is basically Arabic or
+ * Hebrew, with possible included numbers or phrases in English, has to be
+ * displayed as if it had an even embedding level (this can happen if the
+ * displaying application treats all text as if it was basically LTR).
+ * <br>
+ * This mode may also be needed in the reverse case, when logical text which is
+ * basically English, with possible included phrases in Arabic or Hebrew, has to
+ * be displayed as if it had an odd embedding level.
+ * <br>
+ * Both cases could be handled by adding LRE or RLE at the head of the text,
+ * if the display subsystem supports these formatting controls. If it does not,
+ * the problem may be handled by transforming the source text in this mode
+ * before displaying it, so that it will be displayed properly.<br>
+ * The source text should not contain Bidi control characters other than LRM
+ * or RLM.</li>
+ *
+ * <li>When the reordering mode is set to
+ * <code>#UBIDI_REORDER_INVERSE_NUMBERS_AS_L</code>, an "inverse Bidi" algorithm
+ * is applied.
+ * Runs of text with numeric characters will be treated like LTR letters and
+ * may need to be surrounded with LRM characters when they are written in
+ * reordered sequence (the option <code>#UBIDI_INSERT_LRM_FOR_NUMERIC</code> can
+ * be used with function <code>ubidi_writeReordered</code> to this end. This
+ * mode is equivalent to calling <code>ubidi_setInverse()</code> with
+ * argument <code>isInverse</code> set to <code>TRUE</code>.</li>
+ *
+ * <li>When the reordering mode is set to
+ * <code>#UBIDI_REORDER_INVERSE_LIKE_DIRECT</code>, the "direct" Logical to Visual
+ * Bidi algorithm is used as an approximation of an "inverse Bidi" algorithm.
+ * This mode is similar to mode <code>#UBIDI_REORDER_INVERSE_NUMBERS_AS_L</code>
+ * but is closer to the regular Bidi algorithm.
+ * <br>
+ * For example, an LTR paragraph with the content "FED 123 456 CBA" (where
+ * upper case represents RTL characters) will be transformed to
+ * "ABC 456 123 DEF", as opposed to "DEF 123 456 ABC"
+ * with mode <code>UBIDI_REORDER_INVERSE_NUMBERS_AS_L</code>.<br>
+ * When used in conjunction with option
+ * <code>#UBIDI_OPTION_INSERT_MARKS</code>, this mode generally
+ * adds Bidi marks to the output significantly more sparingly than mode
+ * <code>#UBIDI_REORDER_INVERSE_NUMBERS_AS_L</code> with option
+ * <code>#UBIDI_INSERT_LRM_FOR_NUMERIC</code> in calls to
+ * <code>ubidi_writeReordered</code>.</li>
+ *
+ * <li>When the reordering mode is set to
+ * <code>#UBIDI_REORDER_INVERSE_FOR_NUMBERS_SPECIAL</code>, the Logical to Visual
+ * Bidi algorithm used in Windows XP is used as an approximation of an "inverse Bidi" algorithm.
+ * <br>
+ * For example, an LTR paragraph with the content "abc FED123" (where
+ * upper case represents RTL characters) will be transformed to "abc 123DEF."</li>
+ * </ul>
+ *
+ * <p>In all the reordering modes specifying an "inverse Bidi" algorithm
+ * (i.e. those with a name starting with <code>UBIDI_REORDER_INVERSE</code>),
+ * output runs should be retrieved using
+ * <code>ubidi_getVisualRun()</code>, and the output text with
+ * <code>ubidi_writeReordered()</code>. The caller should keep in mind that in
+ * "inverse Bidi" modes the input is actually visually ordered text and
+ * reordered output returned by <code>ubidi_getVisualRun()</code> or
+ * <code>ubidi_writeReordered()</code> are actually runs or character string
+ * of logically ordered output.<br>
+ * For all the "inverse Bidi" modes, the source text should not contain
+ * Bidi control characters other than LRM or RLM.</p>
+ *
+ * <p>Note that option <code>#UBIDI_OUTPUT_REVERSE</code> of
+ * <code>ubidi_writeReordered</code> has no useful meaning and should not be
+ * used in conjunction with any value of the reordering mode specifying
+ * "inverse Bidi" or with value <code>UBIDI_REORDER_RUNS_ONLY</code>.
+ *
+ * @param pBiDi is a <code>UBiDi</code> object.
+ * @param reorderingMode specifies the required variant of the Bidi algorithm.
+ *
+ * @see UBiDiReorderingMode
+ * @see ubidi_setInverse
+ * @see ubidi_setPara
+ * @see ubidi_writeReordered
+ * @stable ICU 3.6
+ */
+U_STABLE void U_EXPORT2
+ubidi_setReorderingMode(UBiDi *pBiDi, UBiDiReorderingMode reorderingMode);
+
+/**
+ * What is the requested reordering mode for a given Bidi object?
+ *
+ * @param pBiDi is a <code>UBiDi</code> object.
+ * @return the current reordering mode of the Bidi object
+ * @see ubidi_setReorderingMode
+ * @stable ICU 3.6
+ */
+U_STABLE UBiDiReorderingMode U_EXPORT2
+ubidi_getReorderingMode(UBiDi *pBiDi);
+
+/**
+ * <code>UBiDiReorderingOption</code> values indicate which options are
+ * specified to affect the Bidi algorithm.
+ *
+ * @see ubidi_setReorderingOptions
+ * @stable ICU 3.6
+ */
+typedef enum UBiDiReorderingOption {
+    /**
+     * option value for <code>ubidi_setReorderingOptions</code>:
+     * disable all the options which can be set with this function
+     * @see ubidi_setReorderingOptions
+     * @stable ICU 3.6
+     */
+    UBIDI_OPTION_DEFAULT = 0,
+
+    /**
+     * option bit for <code>ubidi_setReorderingOptions</code>:
+     * insert Bidi marks (LRM or RLM) when needed to ensure correct result of
+     * a reordering to a Logical order
+     *
+     * <p>This option must be set or reset before calling
+     * <code>ubidi_setPara</code>.</p>
+     *
+     * <p>This option is significant only with reordering modes which generate
+     * a result with Logical order, specifically:</p>
+     * <ul>
+     *   <li><code>#UBIDI_REORDER_RUNS_ONLY</code></li>
+     *   <li><code>#UBIDI_REORDER_INVERSE_NUMBERS_AS_L</code></li>
+     *   <li><code>#UBIDI_REORDER_INVERSE_LIKE_DIRECT</code></li>
+     *   <li><code>#UBIDI_REORDER_INVERSE_FOR_NUMBERS_SPECIAL</code></li>
+     * </ul>
+     *
+     * <p>If this option is set in conjunction with reordering mode
+     * <code>#UBIDI_REORDER_INVERSE_NUMBERS_AS_L</code> or with calling
+     * <code>ubidi_setInverse(TRUE)</code>, it implies
+     * option <code>#UBIDI_INSERT_LRM_FOR_NUMERIC</code>
+     * in calls to function <code>ubidi_writeReordered()</code>.</p>
+     *
+     * <p>For other reordering modes, a minimum number of LRM or RLM characters
+     * will be added to the source text after reordering it so as to ensure
+     * round trip, i.e. when applying the inverse reordering mode on the
+     * resulting logical text with removal of Bidi marks
+     * (option <code>#UBIDI_OPTION_REMOVE_CONTROLS</code> set before calling
+     * <code>ubidi_setPara()</code> or option <code>#UBIDI_REMOVE_BIDI_CONTROLS</code>
+     * in <code>ubidi_writeReordered</code>), the result will be identical to the
+     * source text in the first transformation.
+     *
+     * <p>This option will be ignored if specified together with option
+     * <code>#UBIDI_OPTION_REMOVE_CONTROLS</code>. It inhibits option
+     * <code>UBIDI_REMOVE_BIDI_CONTROLS</code> in calls to function
+     * <code>ubidi_writeReordered()</code> and it implies option
+     * <code>#UBIDI_INSERT_LRM_FOR_NUMERIC</code> in calls to function
+     * <code>ubidi_writeReordered()</code> if the reordering mode is
+     * <code>#UBIDI_REORDER_INVERSE_NUMBERS_AS_L</code>.</p>
+     *
+     * @see ubidi_setReorderingMode
+     * @see ubidi_setReorderingOptions
+     * @stable ICU 3.6
+     */
+    UBIDI_OPTION_INSERT_MARKS = 1,
+
+    /**
+     * option bit for <code>ubidi_setReorderingOptions</code>:
+     * remove Bidi control characters
+     *
+     * <p>This option must be set or reset before calling
+     * <code>ubidi_setPara</code>.</p>
+     *
+     * <p>This option nullifies option <code>#UBIDI_OPTION_INSERT_MARKS</code>.
+     * It inhibits option <code>#UBIDI_INSERT_LRM_FOR_NUMERIC</code> in calls
+     * to function <code>ubidi_writeReordered()</code> and it implies option
+     * <code>#UBIDI_REMOVE_BIDI_CONTROLS</code> in calls to that function.</p>
+     *
+     * @see ubidi_setReorderingMode
+     * @see ubidi_setReorderingOptions
+     * @stable ICU 3.6
+     */
+    UBIDI_OPTION_REMOVE_CONTROLS = 2,
+
+    /**
+     * option bit for <code>ubidi_setReorderingOptions</code>:
+     * process the output as part of a stream to be continued
+     *
+     * <p>This option must be set or reset before calling
+     * <code>ubidi_setPara</code>.</p>
+     *
+     * <p>This option specifies that the caller is interested in processing large
+     * text object in parts.
+     * The results of the successive calls are expected to be concatenated by the
+     * caller. Only the call for the last part will have this option bit off.</p>
+     *
+     * <p>When this option bit is on, <code>ubidi_setPara()</code> may process
+     * less than the full source text in order to truncate the text at a meaningful
+     * boundary. The caller should call <code>ubidi_getProcessedLength()</code>
+     * immediately after calling <code>ubidi_setPara()</code> in order to
+     * determine how much of the source text has been processed.
+     * Source text beyond that length should be resubmitted in following calls to
+     * <code>ubidi_setPara</code>. The processed length may be less than
+     * the length of the source text if a character preceding the last character of
+     * the source text constitutes a reasonable boundary (like a block separator)
+     * for text to be continued.<br>
+     * If the last character of the source text constitutes a reasonable
+     * boundary, the whole text will be processed at once.<br>
+     * If nowhere in the source text there exists
+     * such a reasonable boundary, the processed length will be zero.<br>
+     * The caller should check for such an occurrence and do one of the following:
+     * <ul><li>submit a larger amount of text with a better chance to include
+     *         a reasonable boundary.</li>
+     *     <li>resubmit the same text after turning off option
+     *         <code>UBIDI_OPTION_STREAMING</code>.</li></ul>
+     * In all cases, this option should be turned off before processing the last
+     * part of the text.</p>
+     *
+     * <p>When the <code>UBIDI_OPTION_STREAMING</code> option is used,
+     * it is recommended to call <code>ubidi_orderParagraphsLTR()</code> with
+     * argument <code>orderParagraphsLTR</code> set to <code>TRUE</code> before
+     * calling <code>ubidi_setPara</code> so that later paragraphs may be
+     * concatenated to previous paragraphs on the right.</p>
+     *
+     * @see ubidi_setReorderingMode
+     * @see ubidi_setReorderingOptions
+     * @see ubidi_getProcessedLength
+     * @see ubidi_orderParagraphsLTR
+     * @stable ICU 3.6
+     */
+    UBIDI_OPTION_STREAMING = 4
+} UBiDiReorderingOption;
+
+/**
+ * Specify which of the reordering options
+ * should be applied during Bidi transformations.
+ *
+ * @param pBiDi is a <code>UBiDi</code> object.
+ * @param reorderingOptions is a combination of zero or more of the following
+ * options:
+ * <code>#UBIDI_OPTION_DEFAULT</code>, <code>#UBIDI_OPTION_INSERT_MARKS</code>,
+ * <code>#UBIDI_OPTION_REMOVE_CONTROLS</code>, <code>#UBIDI_OPTION_STREAMING</code>.
+ *
+ * @see ubidi_getReorderingOptions
+ * @stable ICU 3.6
+ */
+U_STABLE void U_EXPORT2
+ubidi_setReorderingOptions(UBiDi *pBiDi, uint32_t reorderingOptions);
+
+/**
+ * What are the reordering options applied to a given Bidi object?
+ *
+ * @param pBiDi is a <code>UBiDi</code> object.
+ * @return the current reordering options of the Bidi object
+ * @see ubidi_setReorderingOptions
+ * @stable ICU 3.6
+ */
+U_STABLE uint32_t U_EXPORT2
+ubidi_getReorderingOptions(UBiDi *pBiDi);
+
+/**
+ * Set the context before a call to ubidi_setPara().<p>
+ *
+ * ubidi_setPara() computes the left-right directionality for a given piece
+ * of text which is supplied as one of its arguments. Sometimes this piece
+ * of text (the "main text") should be considered in context, because text
+ * appearing before ("prologue") and/or after ("epilogue") the main text
+ * may affect the result of this computation.<p>
+ *
+ * This function specifies the prologue and/or the epilogue for the next
+ * call to ubidi_setPara(). The characters specified as prologue and
+ * epilogue should not be modified by the calling program until the call
+ * to ubidi_setPara() has returned. If successive calls to ubidi_setPara()
+ * all need specification of a context, ubidi_setContext() must be called
+ * before each call to ubidi_setPara(). In other words, a context is not
+ * "remembered" after the following successful call to ubidi_setPara().<p>
+ *
+ * If a call to ubidi_setPara() specifies UBIDI_DEFAULT_LTR or
+ * UBIDI_DEFAULT_RTL as paraLevel and is preceded by a call to
+ * ubidi_setContext() which specifies a prologue, the paragraph level will
+ * be computed taking in consideration the text in the prologue.<p>
+ *
+ * When ubidi_setPara() is called without a previous call to
+ * ubidi_setContext, the main text is handled as if preceded and followed
+ * by strong directional characters at the current paragraph level.
+ * Calling ubidi_setContext() with specification of a prologue will change
+ * this behavior by handling the main text as if preceded by the last
+ * strong character appearing in the prologue, if any.
+ * Calling ubidi_setContext() with specification of an epilogue will change
+ * the behavior of ubidi_setPara() by handling the main text as if followed
+ * by the first strong character or digit appearing in the epilogue, if any.<p>
+ *
+ * Note 1: if <code>ubidi_setContext</code> is called repeatedly without
+ *         calling <code>ubidi_setPara</code>, the earlier calls have no effect,
+ *         only the last call will be remembered for the next call to
+ *         <code>ubidi_setPara</code>.<p>
+ *
+ * Note 2: calling <code>ubidi_setContext(pBiDi, NULL, 0, NULL, 0, &errorCode)</code>
+ *         cancels any previous setting of non-empty prologue or epilogue.
+ *         The next call to <code>ubidi_setPara()</code> will process no
+ *         prologue or epilogue.<p>
+ *
+ * Note 3: users must be aware that even after setting the context
+ *         before a call to ubidi_setPara() to perform e.g. a logical to visual
+ *         transformation, the resulting string may not be identical to what it
+ *         would have been if all the text, including prologue and epilogue, had
+ *         been processed together.<br>
+ * Example (upper case letters represent RTL characters):<br>
+ * &nbsp;&nbsp;prologue = "<code>abc DE</code>"<br>
+ * &nbsp;&nbsp;epilogue = none<br>
+ * &nbsp;&nbsp;main text = "<code>FGH xyz</code>"<br>
+ * &nbsp;&nbsp;paraLevel = UBIDI_LTR<br>
+ * &nbsp;&nbsp;display without prologue = "<code>HGF xyz</code>"
+ *             ("HGF" is adjacent to "xyz")<br>
+ * &nbsp;&nbsp;display with prologue = "<code>abc HGFED xyz</code>"
+ *             ("HGF" is not adjacent to "xyz")<br>
+ *
+ * @param pBiDi is a paragraph <code>UBiDi</code> object.
+ *
+ * @param prologue is a pointer to the text which precedes the text that
+ *        will be specified in a coming call to ubidi_setPara().
+ *        If there is no prologue to consider, then <code>proLength</code>
+ *        must be zero and this pointer can be NULL.
+ *
+ * @param proLength is the length of the prologue; if <code>proLength==-1</code>
+ *        then the prologue must be zero-terminated.
+ *        Otherwise proLength must be >= 0. If <code>proLength==0</code>, it means
+ *        that there is no prologue to consider.
+ *
+ * @param epilogue is a pointer to the text which follows the text that
+ *        will be specified in a coming call to ubidi_setPara().
+ *        If there is no epilogue to consider, then <code>epiLength</code>
+ *        must be zero and this pointer can be NULL.
+ *
+ * @param epiLength is the length of the epilogue; if <code>epiLength==-1</code>
+ *        then the epilogue must be zero-terminated.
+ *        Otherwise epiLength must be >= 0. If <code>epiLength==0</code>, it means
+ *        that there is no epilogue to consider.
+ *
+ * @param pErrorCode must be a valid pointer to an error code value.
+ *
+ * @see ubidi_setPara
+ * @stable ICU 4.8
+ */
+U_STABLE void U_EXPORT2
+ubidi_setContext(UBiDi *pBiDi,
+                 const UChar *prologue, int32_t proLength,
+                 const UChar *epilogue, int32_t epiLength,
+                 UErrorCode *pErrorCode);
+
+/**
+ * Perform the Unicode Bidi algorithm. It is defined in the
+ * <a href="http://www.unicode.org/unicode/reports/tr9/">Unicode Standard Annex #9</a>,
+ * version 13,
+ * also described in The Unicode Standard, Version 4.0 .<p>
+ *
+ * This function takes a piece of plain text containing one or more paragraphs,
+ * with or without externally specified embedding levels from <i>styled</i>
+ * text and computes the left-right-directionality of each character.<p>
+ *
+ * If the entire text is all of the same directionality, then
+ * the function may not perform all the steps described by the algorithm,
+ * i.e., some levels may not be the same as if all steps were performed.
+ * This is not relevant for unidirectional text.<br>
+ * For example, in pure LTR text with numbers the numbers would get
+ * a resolved level of 2 higher than the surrounding text according to
+ * the algorithm. This implementation may set all resolved levels to
+ * the same value in such a case.<p>
+ *
+ * The text can be composed of multiple paragraphs. Occurrence of a block
+ * separator in the text terminates a paragraph, and whatever comes next starts
+ * a new paragraph. The exception to this rule is when a Carriage Return (CR)
+ * is followed by a Line Feed (LF). Both CR and LF are block separators, but
+ * in that case, the pair of characters is considered as terminating the
+ * preceding paragraph, and a new paragraph will be started by a character
+ * coming after the LF.
+ *
+ * @param pBiDi A <code>UBiDi</code> object allocated with <code>ubidi_open()</code>
+ *        which will be set to contain the reordering information,
+ *        especially the resolved levels for all the characters in <code>text</code>.
+ *
+ * @param text is a pointer to the text that the Bidi algorithm will be performed on.
+ *        This pointer is stored in the UBiDi object and can be retrieved
+ *        with <code>ubidi_getText()</code>.<br>
+ *        <strong>Note:</strong> the text must be (at least) <code>length</code> long.
+ *
+ * @param length is the length of the text; if <code>length==-1</code> then
+ *        the text must be zero-terminated.
+ *
+ * @param paraLevel specifies the default level for the text;
+ *        it is typically 0 (LTR) or 1 (RTL).
+ *        If the function shall determine the paragraph level from the text,
+ *        then <code>paraLevel</code> can be set to
+ *        either <code>#UBIDI_DEFAULT_LTR</code>
+ *        or <code>#UBIDI_DEFAULT_RTL</code>; if the text contains multiple
+ *        paragraphs, the paragraph level shall be determined separately for
+ *        each paragraph; if a paragraph does not include any strongly typed
+ *        character, then the desired default is used (0 for LTR or 1 for RTL).
+ *        Any other value between 0 and <code>#UBIDI_MAX_EXPLICIT_LEVEL</code>
+ *        is also valid, with odd levels indicating RTL.
+ *
+ * @param embeddingLevels (in) may be used to preset the embedding and override levels,
+ *        ignoring characters like LRE and PDF in the text.
+ *        A level overrides the directional property of its corresponding
+ *        (same index) character if the level has the
+ *        <code>#UBIDI_LEVEL_OVERRIDE</code> bit set.<br><br>
+ *        Aside from that bit, it must be
+ *        <code>paraLevel<=embeddingLevels[]<=UBIDI_MAX_EXPLICIT_LEVEL</code>,
+ *        except that level 0 is always allowed.
+ *        Level 0 for a paragraph separator prevents reordering of paragraphs;
+ *        this only works reliably if <code>#UBIDI_LEVEL_OVERRIDE</code>
+ *        is also set for paragraph separators.
+ *        Level 0 for other characters is treated as a wildcard
+ *        and is lifted up to the resolved level of the surrounding paragraph.<br><br>
+ *        <strong>Caution: </strong>A copy of this pointer, not of the levels,
+ *        will be stored in the <code>UBiDi</code> object;
+ *        the <code>embeddingLevels</code> array must not be
+ *        deallocated before the <code>UBiDi</code> structure is destroyed or reused,
+ *        and the <code>embeddingLevels</code>
+ *        should not be modified to avoid unexpected results on subsequent Bidi operations.
+ *        However, the <code>ubidi_setPara()</code> and
+ *        <code>ubidi_setLine()</code> functions may modify some or all of the levels.<br><br>
+ *        After the <code>UBiDi</code> object is reused or destroyed, the caller
+ *        must take care of the deallocation of the <code>embeddingLevels</code> array.<br><br>
+ *        <strong>Note:</strong> the <code>embeddingLevels</code> array must be
+ *        at least <code>length</code> long.
+ *        This pointer can be <code>NULL</code> if this
+ *        value is not necessary.
+ *
+ * @param pErrorCode must be a valid pointer to an error code value.
+ * @stable ICU 2.0
+ */
+U_STABLE void U_EXPORT2
+ubidi_setPara(UBiDi *pBiDi, const UChar *text, int32_t length,
+              UBiDiLevel paraLevel, UBiDiLevel *embeddingLevels,
+              UErrorCode *pErrorCode);
+
+/**
+ * <code>ubidi_setLine()</code> sets a <code>UBiDi</code> to
+ * contain the reordering information, especially the resolved levels,
+ * for all the characters in a line of text. This line of text is
+ * specified by referring to a <code>UBiDi</code> object representing
+ * this information for a piece of text containing one or more paragraphs,
+ * and by specifying a range of indexes in this text.<p>
+ * In the new line object, the indexes will range from 0 to <code>limit-start-1</code>.<p>
+ *
+ * This is used after calling <code>ubidi_setPara()</code>
+ * for a piece of text, and after line-breaking on that text.
+ * It is not necessary if each paragraph is treated as a single line.<p>
+ *
+ * After line-breaking, rules (L1) and (L2) for the treatment of
+ * trailing WS and for reordering are performed on
+ * a <code>UBiDi</code> object that represents a line.<p>
+ *
+ * <strong>Important: </strong><code>pLineBiDi</code> shares data with
+ * <code>pParaBiDi</code>.
+ * You must destroy or reuse <code>pLineBiDi</code> before <code>pParaBiDi</code>.
+ * In other words, you must destroy or reuse the <code>UBiDi</code> object for a line
+ * before the object for its parent paragraph.<p>
+ *
+ * The text pointer that was stored in <code>pParaBiDi</code> is also copied,
+ * and <code>start</code> is added to it so that it points to the beginning of the
+ * line for this object.
+ *
+ * @param pParaBiDi is the parent paragraph object. It must have been set
+ * by a successful call to ubidi_setPara.
+ *
+ * @param start is the line's first index into the text.
+ *
+ * @param limit is just behind the line's last index into the text
+ *        (its last index +1).<br>
+ *        It must be <code>0<=start<limit<=</code>containing paragraph limit.
+ *        If the specified line crosses a paragraph boundary, the function
+ *        will terminate with error code U_ILLEGAL_ARGUMENT_ERROR.
+ *
+ * @param pLineBiDi is the object that will now represent a line of the text.
+ *
+ * @param pErrorCode must be a valid pointer to an error code value.
+ *
+ * @see ubidi_setPara
+ * @see ubidi_getProcessedLength
+ * @stable ICU 2.0
+ */
+U_STABLE void U_EXPORT2
+ubidi_setLine(const UBiDi *pParaBiDi,
+              int32_t start, int32_t limit,
+              UBiDi *pLineBiDi,
+              UErrorCode *pErrorCode);
+
+/**
+ * Get the directionality of the text.
+ *
+ * @param pBiDi is the paragraph or line <code>UBiDi</code> object.
+ *
+ * @return a value of <code>UBIDI_LTR</code>, <code>UBIDI_RTL</code>
+ *         or <code>UBIDI_MIXED</code>
+ *         that indicates if the entire text
+ *         represented by this object is unidirectional,
+ *         and which direction, or if it is mixed-directional.
+ * Note -  The value <code>UBIDI_NEUTRAL</code> is never returned from this method.
+ *
+ * @see UBiDiDirection
+ * @stable ICU 2.0
+ */
+U_STABLE UBiDiDirection U_EXPORT2
+ubidi_getDirection(const UBiDi *pBiDi);
+
+/**
+ * Gets the base direction of the text provided according
+ * to the Unicode Bidirectional Algorithm. The base direction
+ * is derived from the first character in the string with bidirectional
+ * character type L, R, or AL. If the first such character has type L,
+ * <code>UBIDI_LTR</code> is returned. If the first such character has
+ * type R or AL, <code>UBIDI_RTL</code> is returned. If the string does
+ * not contain any character of these types, then
+ * <code>UBIDI_NEUTRAL</code> is returned.
+ *
+ * This is a lightweight function for use when only the base direction
+ * is needed and no further bidi processing of the text is needed.
+ *
+ * @param text is a pointer to the text whose base
+ *             direction is needed.
+ * Note: the text must be (at least) @c length long.
+ *
+ * @param length is the length of the text;
+ *               if <code>length==-1</code> then the text
+ *               must be zero-terminated.
+ *
+ * @return  <code>UBIDI_LTR</code>, <code>UBIDI_RTL</code>,
+ *          <code>UBIDI_NEUTRAL</code>
+ *
+ * @see UBiDiDirection
+ * @stable ICU 4.6
+ */
+U_STABLE UBiDiDirection U_EXPORT2
+ubidi_getBaseDirection(const UChar *text,  int32_t length );
+
+/**
+ * Get the pointer to the text.
+ *
+ * @param pBiDi is the paragraph or line <code>UBiDi</code> object.
+ *
+ * @return The pointer to the text that the UBiDi object was created for.
+ *
+ * @see ubidi_setPara
+ * @see ubidi_setLine
+ * @stable ICU 2.0
+ */
+U_STABLE const UChar * U_EXPORT2
+ubidi_getText(const UBiDi *pBiDi);
+
+/**
+ * Get the length of the text.
+ *
+ * @param pBiDi is the paragraph or line <code>UBiDi</code> object.
+ *
+ * @return The length of the text that the UBiDi object was created for.
+ * @stable ICU 2.0
+ */
+U_STABLE int32_t U_EXPORT2
+ubidi_getLength(const UBiDi *pBiDi);
+
+/**
+ * Get the paragraph level of the text.
+ *
+ * @param pBiDi is the paragraph or line <code>UBiDi</code> object.
+ *
+ * @return The paragraph level. If there are multiple paragraphs, their
+ *         level may vary if the required paraLevel is UBIDI_DEFAULT_LTR or
+ *         UBIDI_DEFAULT_RTL.  In that case, the level of the first paragraph
+ *         is returned.
+ *
+ * @see UBiDiLevel
+ * @see ubidi_getParagraph
+ * @see ubidi_getParagraphByIndex
+ * @stable ICU 2.0
+ */
+U_STABLE UBiDiLevel U_EXPORT2
+ubidi_getParaLevel(const UBiDi *pBiDi);
+
+/**
+ * Get the number of paragraphs.
+ *
+ * @param pBiDi is the paragraph or line <code>UBiDi</code> object.
+ *
+ * @return The number of paragraphs.
+ * @stable ICU 3.4
+ */
+U_STABLE int32_t U_EXPORT2
+ubidi_countParagraphs(UBiDi *pBiDi);
+
+/**
+ * Get a paragraph, given a position within the text.
+ * This function returns information about a paragraph.<br>
+ * Note: if the paragraph index is known, it is more efficient to
+ * retrieve the paragraph information using ubidi_getParagraphByIndex().<p>
+ *
+ * @param pBiDi is the paragraph or line <code>UBiDi</code> object.
+ *
+ * @param charIndex is the index of a character within the text, in the
+ *        range <code>[0..ubidi_getProcessedLength(pBiDi)-1]</code>.
+ *
+ * @param pParaStart will receive the index of the first character of the
+ *        paragraph in the text.
+ *        This pointer can be <code>NULL</code> if this
+ *        value is not necessary.
+ *
+ * @param pParaLimit will receive the limit of the paragraph.
+ *        The l-value that you point to here may be the
+ *        same expression (variable) as the one for
+ *        <code>charIndex</code>.
+ *        This pointer can be <code>NULL</code> if this
+ *        value is not necessary.
+ *
+ * @param pParaLevel will receive the level of the paragraph.
+ *        This pointer can be <code>NULL</code> if this
+ *        value is not necessary.
+ *
+ * @param pErrorCode must be a valid pointer to an error code value.
+ *
+ * @return The index of the paragraph containing the specified position.
+ *
+ * @see ubidi_getProcessedLength
+ * @stable ICU 3.4
+ */
+U_STABLE int32_t U_EXPORT2
+ubidi_getParagraph(const UBiDi *pBiDi, int32_t charIndex, int32_t *pParaStart,
+                   int32_t *pParaLimit, UBiDiLevel *pParaLevel,
+                   UErrorCode *pErrorCode);
+
+/**
+ * Get a paragraph, given the index of this paragraph.
+ *
+ * This function returns information about a paragraph.<p>
+ *
+ * @param pBiDi is the paragraph <code>UBiDi</code> object.
+ *
+ * @param paraIndex is the number of the paragraph, in the
+ *        range <code>[0..ubidi_countParagraphs(pBiDi)-1]</code>.
+ *
+ * @param pParaStart will receive the index of the first character of the
+ *        paragraph in the text.
+ *        This pointer can be <code>NULL</code> if this
+ *        value is not necessary.
+ *
+ * @param pParaLimit will receive the limit of the paragraph.
+ *        This pointer can be <code>NULL</code> if this
+ *        value is not necessary.
+ *
+ * @param pParaLevel will receive the level of the paragraph.
+ *        This pointer can be <code>NULL</code> if this
+ *        value is not necessary.
+ *
+ * @param pErrorCode must be a valid pointer to an error code value.
+ *
+ * @stable ICU 3.4
+ */
+U_STABLE void U_EXPORT2
+ubidi_getParagraphByIndex(const UBiDi *pBiDi, int32_t paraIndex,
+                          int32_t *pParaStart, int32_t *pParaLimit,
+                          UBiDiLevel *pParaLevel, UErrorCode *pErrorCode);
+
+/**
+ * Get the level for one character.
+ *
+ * @param pBiDi is the paragraph or line <code>UBiDi</code> object.
+ *
+ * @param charIndex the index of a character. It must be in the range
+ *         [0..ubidi_getProcessedLength(pBiDi)].
+ *
+ * @return The level for the character at charIndex (0 if charIndex is not
+ *         in the valid range).
+ *
+ * @see UBiDiLevel
+ * @see ubidi_getProcessedLength
+ * @stable ICU 2.0
+ */
+U_STABLE UBiDiLevel U_EXPORT2
+ubidi_getLevelAt(const UBiDi *pBiDi, int32_t charIndex);
+
+/**
+ * Get an array of levels for each character.<p>
+ *
+ * Note that this function may allocate memory under some
+ * circumstances, unlike <code>ubidi_getLevelAt()</code>.
+ *
+ * @param pBiDi is the paragraph or line <code>UBiDi</code> object, whose
+ *        text length must be strictly positive.
+ *
+ * @param pErrorCode must be a valid pointer to an error code value.
+ *
+ * @return The levels array for the text,
+ *         or <code>NULL</code> if an error occurs.
+ *
+ * @see UBiDiLevel
+ * @see ubidi_getProcessedLength
+ * @stable ICU 2.0
+ */
+U_STABLE const UBiDiLevel * U_EXPORT2
+ubidi_getLevels(UBiDi *pBiDi, UErrorCode *pErrorCode);
+
+/**
+ * Get a logical run.
+ * This function returns information about a run and is used
+ * to retrieve runs in logical order.<p>
+ * This is especially useful for line-breaking on a paragraph.
+ *
+ * @param pBiDi is the paragraph or line <code>UBiDi</code> object.
+ *
+ * @param logicalPosition is a logical position within the source text.
+ *
+ * @param pLogicalLimit will receive the limit of the corresponding run.
+ *        The l-value that you point to here may be the
+ *        same expression (variable) as the one for
+ *        <code>logicalPosition</code>.
+ *        This pointer can be <code>NULL</code> if this
+ *        value is not necessary.
+ *
+ * @param pLevel will receive the level of the corresponding run.
+ *        This pointer can be <code>NULL</code> if this
+ *        value is not necessary.
+ *
+ * @see ubidi_getProcessedLength
+ * @stable ICU 2.0
+ */
+U_STABLE void U_EXPORT2
+ubidi_getLogicalRun(const UBiDi *pBiDi, int32_t logicalPosition,
+                    int32_t *pLogicalLimit, UBiDiLevel *pLevel);
+
+/**
+ * Get the number of runs.
+ * This function may invoke the actual reordering on the
+ * <code>UBiDi</code> object, after <code>ubidi_setPara()</code>
+ * may have resolved only the levels of the text. Therefore,
+ * <code>ubidi_countRuns()</code> may have to allocate memory,
+ * and may fail doing so.
+ *
+ * @param pBiDi is the paragraph or line <code>UBiDi</code> object.
+ *
+ * @param pErrorCode must be a valid pointer to an error code value.
+ *
+ * @return The number of runs.
+ * @stable ICU 2.0
+ */
+U_STABLE int32_t U_EXPORT2
+ubidi_countRuns(UBiDi *pBiDi, UErrorCode *pErrorCode);
+
+/**
+ * Get one run's logical start, length, and directionality,
+ * which can be 0 for LTR or 1 for RTL.
+ * In an RTL run, the character at the logical start is
+ * visually on the right of the displayed run.
+ * The length is the number of characters in the run.<p>
+ * <code>ubidi_countRuns()</code> should be called
+ * before the runs are retrieved.
+ *
+ * @param pBiDi is the paragraph or line <code>UBiDi</code> object.
+ *
+ * @param runIndex is the number of the run in visual order, in the
+ *        range <code>[0..ubidi_countRuns(pBiDi)-1]</code>.
+ *
+ * @param pLogicalStart is the first logical character index in the text.
+ *        The pointer may be <code>NULL</code> if this index is not needed.
+ *
+ * @param pLength is the number of characters (at least one) in the run.
+ *        The pointer may be <code>NULL</code> if this is not needed.
+ *
+ * @return the directionality of the run,
+ *         <code>UBIDI_LTR==0</code> or <code>UBIDI_RTL==1</code>,
+ *         never <code>UBIDI_MIXED</code>,
+ *         never <code>UBIDI_NEUTRAL</code>.
+ *
+ * @see ubidi_countRuns
+ *
+ * Example:
+ * <pre>
+ * \code
+ * int32_t i, count=ubidi_countRuns(pBiDi),
+ *         logicalStart, visualIndex=0, length;
+ * for(i=0; i<count; ++i) {
+ *    if(UBIDI_LTR==ubidi_getVisualRun(pBiDi, i, &logicalStart, &length)) {
+ *         do { // LTR
+ *             show_char(text[logicalStart++], visualIndex++);
+ *         } while(--length>0);
+ *     } else {
+ *         logicalStart+=length;  // logicalLimit
+ *         do { // RTL
+ *             show_char(text[--logicalStart], visualIndex++);
+ *         } while(--length>0);
+ *     }
+ * }
+ *\endcode
+ * </pre>
+ *
+ * Note that in right-to-left runs, code like this places
+ * second surrogates before first ones (which is generally a bad idea)
+ * and combining characters before base characters.
+ * <p>
+ * Use of <code>ubidi_writeReordered()</code>, optionally with the
+ * <code>#UBIDI_KEEP_BASE_COMBINING</code> option, can be considered in order
+ * to avoid these issues.
+ * @stable ICU 2.0
+ */
+U_STABLE UBiDiDirection U_EXPORT2
+ubidi_getVisualRun(UBiDi *pBiDi, int32_t runIndex,
+                   int32_t *pLogicalStart, int32_t *pLength);
+
+/**
+ * Get the visual position from a logical text position.
+ * If such a mapping is used many times on the same
+ * <code>UBiDi</code> object, then calling
+ * <code>ubidi_getLogicalMap()</code> is more efficient.<p>
+ *
+ * The value returned may be <code>#UBIDI_MAP_NOWHERE</code> if there is no
+ * visual position because the corresponding text character is a Bidi control
+ * removed from output by the option <code>#UBIDI_OPTION_REMOVE_CONTROLS</code>.
+ * <p>
+ * When the visual output is altered by using options of
+ * <code>ubidi_writeReordered()</code> such as <code>UBIDI_INSERT_LRM_FOR_NUMERIC</code>,
+ * <code>UBIDI_KEEP_BASE_COMBINING</code>, <code>UBIDI_OUTPUT_REVERSE</code>,
+ * <code>UBIDI_REMOVE_BIDI_CONTROLS</code>, the visual position returned may not
+ * be correct. It is advised to use, when possible, reordering options
+ * such as <code>UBIDI_OPTION_INSERT_MARKS</code> and <code>UBIDI_OPTION_REMOVE_CONTROLS</code>.
+ * <p>
+ * Note that in right-to-left runs, this mapping places
+ * second surrogates before first ones (which is generally a bad idea)
+ * and combining characters before base characters.
+ * Use of <code>ubidi_writeReordered()</code>, optionally with the
+ * <code>#UBIDI_KEEP_BASE_COMBINING</code> option can be considered instead
+ * of using the mapping, in order to avoid these issues.
+ *
+ * @param pBiDi is the paragraph or line <code>UBiDi</code> object.
+ *
+ * @param logicalIndex is the index of a character in the text.
+ *
+ * @param pErrorCode must be a valid pointer to an error code value.
+ *
+ * @return The visual position of this character.
+ *
+ * @see ubidi_getLogicalMap
+ * @see ubidi_getLogicalIndex
+ * @see ubidi_getProcessedLength
+ * @stable ICU 2.0
+ */
+U_STABLE int32_t U_EXPORT2
+ubidi_getVisualIndex(UBiDi *pBiDi, int32_t logicalIndex, UErrorCode *pErrorCode);
+
+/**
+ * Get the logical text position from a visual position.
+ * If such a mapping is used many times on the same
+ * <code>UBiDi</code> object, then calling
+ * <code>ubidi_getVisualMap()</code> is more efficient.<p>
+ *
+ * The value returned may be <code>#UBIDI_MAP_NOWHERE</code> if there is no
+ * logical position because the corresponding text character is a Bidi mark
+ * inserted in the output by option <code>#UBIDI_OPTION_INSERT_MARKS</code>.
+ * <p>
+ * This is the inverse function to <code>ubidi_getVisualIndex()</code>.
+ * <p>
+ * When the visual output is altered by using options of
+ * <code>ubidi_writeReordered()</code> such as <code>UBIDI_INSERT_LRM_FOR_NUMERIC</code>,
+ * <code>UBIDI_KEEP_BASE_COMBINING</code>, <code>UBIDI_OUTPUT_REVERSE</code>,
+ * <code>UBIDI_REMOVE_BIDI_CONTROLS</code>, the logical position returned may not
+ * be correct. It is advised to use, when possible, reordering options
+ * such as <code>UBIDI_OPTION_INSERT_MARKS</code> and <code>UBIDI_OPTION_REMOVE_CONTROLS</code>.
+ *
+ * @param pBiDi is the paragraph or line <code>UBiDi</code> object.
+ *
+ * @param visualIndex is the visual position of a character.
+ *
+ * @param pErrorCode must be a valid pointer to an error code value.
+ *
+ * @return The index of this character in the text.
+ *
+ * @see ubidi_getVisualMap
+ * @see ubidi_getVisualIndex
+ * @see ubidi_getResultLength
+ * @stable ICU 2.0
+ */
+U_STABLE int32_t U_EXPORT2
+ubidi_getLogicalIndex(UBiDi *pBiDi, int32_t visualIndex, UErrorCode *pErrorCode);
+
+/**
+ * Get a logical-to-visual index map (array) for the characters in the UBiDi
+ * (paragraph or line) object.
+ * <p>
+ * Some values in the map may be <code>#UBIDI_MAP_NOWHERE</code> if the
+ * corresponding text characters are Bidi controls removed from the visual
+ * output by the option <code>#UBIDI_OPTION_REMOVE_CONTROLS</code>.
+ * <p>
+ * When the visual output is altered by using options of
+ * <code>ubidi_writeReordered()</code> such as <code>UBIDI_INSERT_LRM_FOR_NUMERIC</code>,
+ * <code>UBIDI_KEEP_BASE_COMBINING</code>, <code>UBIDI_OUTPUT_REVERSE</code>,
+ * <code>UBIDI_REMOVE_BIDI_CONTROLS</code>, the visual positions returned may not
+ * be correct. It is advised to use, when possible, reordering options
+ * such as <code>UBIDI_OPTION_INSERT_MARKS</code> and <code>UBIDI_OPTION_REMOVE_CONTROLS</code>.
+ * <p>
+ * Note that in right-to-left runs, this mapping places
+ * second surrogates before first ones (which is generally a bad idea)
+ * and combining characters before base characters.
+ * Use of <code>ubidi_writeReordered()</code>, optionally with the
+ * <code>#UBIDI_KEEP_BASE_COMBINING</code> option can be considered instead
+ * of using the mapping, in order to avoid these issues.
+ *
+ * @param pBiDi is the paragraph or line <code>UBiDi</code> object.
+ *
+ * @param indexMap is a pointer to an array of <code>ubidi_getProcessedLength()</code>
+ *        indexes which will reflect the reordering of the characters.
+ *        If option <code>#UBIDI_OPTION_INSERT_MARKS</code> is set, the number
+ *        of elements allocated in <code>indexMap</code> must be no less than
+ *        <code>ubidi_getResultLength()</code>.
+ *        The array does not need to be initialized.<br><br>
+ *        The index map will result in <code>indexMap[logicalIndex]==visualIndex</code>.
+ *
+ * @param pErrorCode must be a valid pointer to an error code value.
+ *
+ * @see ubidi_getVisualMap
+ * @see ubidi_getVisualIndex
+ * @see ubidi_getProcessedLength
+ * @see ubidi_getResultLength
+ * @stable ICU 2.0
+ */
+U_STABLE void U_EXPORT2
+ubidi_getLogicalMap(UBiDi *pBiDi, int32_t *indexMap, UErrorCode *pErrorCode);
+
+/**
+ * Get a visual-to-logical index map (array) for the characters in the UBiDi
+ * (paragraph or line) object.
+ * <p>
+ * Some values in the map may be <code>#UBIDI_MAP_NOWHERE</code> if the
+ * corresponding text characters are Bidi marks inserted in the visual output
+ * by the option <code>#UBIDI_OPTION_INSERT_MARKS</code>.
+ * <p>
+ * When the visual output is altered by using options of
+ * <code>ubidi_writeReordered()</code> such as <code>UBIDI_INSERT_LRM_FOR_NUMERIC</code>,
+ * <code>UBIDI_KEEP_BASE_COMBINING</code>, <code>UBIDI_OUTPUT_REVERSE</code>,
+ * <code>UBIDI_REMOVE_BIDI_CONTROLS</code>, the logical positions returned may not
+ * be correct. It is advised to use, when possible, reordering options
+ * such as <code>UBIDI_OPTION_INSERT_MARKS</code> and <code>UBIDI_OPTION_REMOVE_CONTROLS</code>.
+ *
+ * @param pBiDi is the paragraph or line <code>UBiDi</code> object.
+ *
+ * @param indexMap is a pointer to an array of <code>ubidi_getResultLength()</code>
+ *        indexes which will reflect the reordering of the characters.
+ *        If option <code>#UBIDI_OPTION_REMOVE_CONTROLS</code> is set, the number
+ *        of elements allocated in <code>indexMap</code> must be no less than
+ *        <code>ubidi_getProcessedLength()</code>.
+ *        The array does not need to be initialized.<br><br>
+ *        The index map will result in <code>indexMap[visualIndex]==logicalIndex</code>.
+ *
+ * @param pErrorCode must be a valid pointer to an error code value.
+ *
+ * @see ubidi_getLogicalMap
+ * @see ubidi_getLogicalIndex
+ * @see ubidi_getProcessedLength
+ * @see ubidi_getResultLength
+ * @stable ICU 2.0
+ */
+U_STABLE void U_EXPORT2
+ubidi_getVisualMap(UBiDi *pBiDi, int32_t *indexMap, UErrorCode *pErrorCode);
+
+/**
+ * This is a convenience function that does not use a UBiDi object.
+ * It is intended to be used for when an application has determined the levels
+ * of objects (character sequences) and just needs to have them reordered (L2).
+ * This is equivalent to using <code>ubidi_getLogicalMap()</code> on a
+ * <code>UBiDi</code> object.
+ *
+ * @param levels is an array with <code>length</code> levels that have been determined by
+ *        the application.
+ *
+ * @param length is the number of levels in the array, or, semantically,
+ *        the number of objects to be reordered.
+ *        It must be <code>length>0</code>.
+ *
+ * @param indexMap is a pointer to an array of <code>length</code>
+ *        indexes which will reflect the reordering of the characters.
+ *        The array does not need to be initialized.<p>
+ *        The index map will result in <code>indexMap[logicalIndex]==visualIndex</code>.
+ * @stable ICU 2.0
+ */
+U_STABLE void U_EXPORT2
+ubidi_reorderLogical(const UBiDiLevel *levels, int32_t length, int32_t *indexMap);
+
+/**
+ * This is a convenience function that does not use a UBiDi object.
+ * It is intended to be used for when an application has determined the levels
+ * of objects (character sequences) and just needs to have them reordered (L2).
+ * This is equivalent to using <code>ubidi_getVisualMap()</code> on a
+ * <code>UBiDi</code> object.
+ *
+ * @param levels is an array with <code>length</code> levels that have been determined by
+ *        the application.
+ *
+ * @param length is the number of levels in the array, or, semantically,
+ *        the number of objects to be reordered.
+ *        It must be <code>length>0</code>.
+ *
+ * @param indexMap is a pointer to an array of <code>length</code>
+ *        indexes which will reflect the reordering of the characters.
+ *        The array does not need to be initialized.<p>
+ *        The index map will result in <code>indexMap[visualIndex]==logicalIndex</code>.
+ * @stable ICU 2.0
+ */
+U_STABLE void U_EXPORT2
+ubidi_reorderVisual(const UBiDiLevel *levels, int32_t length, int32_t *indexMap);
+
+/**
+ * Invert an index map.
+ * The index mapping of the first map is inverted and written to
+ * the second one.
+ *
+ * @param srcMap is an array with <code>length</code> elements
+ *        which defines the original mapping from a source array containing
+ *        <code>length</code> elements to a destination array.
+ *        Some elements of the source array may have no mapping in the
+ *        destination array. In that case, their value will be
+ *        the special value <code>UBIDI_MAP_NOWHERE</code>.
+ *        All elements must be >=0 or equal to <code>UBIDI_MAP_NOWHERE</code>.
+ *        Some elements may have a value >= <code>length</code>, if the
+ *        destination array has more elements than the source array.
+ *        There must be no duplicate indexes (two or more elements with the
+ *        same value except <code>UBIDI_MAP_NOWHERE</code>).
+ *
+ * @param destMap is an array with a number of elements equal to 1 + the highest
+ *        value in <code>srcMap</code>.
+ *        <code>destMap</code> will be filled with the inverse mapping.
+ *        If element with index i in <code>srcMap</code> has a value k different
+ *        from <code>UBIDI_MAP_NOWHERE</code>, this means that element i of
+ *        the source array maps to element k in the destination array.
+ *        The inverse map will have value i in its k-th element.
+ *        For all elements of the destination array which do not map to
+ *        an element in the source array, the corresponding element in the
+ *        inverse map will have a value equal to <code>UBIDI_MAP_NOWHERE</code>.
+ *
+ * @param length is the length of each array.
+ * @see UBIDI_MAP_NOWHERE
+ * @stable ICU 2.0
+ */
+U_STABLE void U_EXPORT2
+ubidi_invertMap(const int32_t *srcMap, int32_t *destMap, int32_t length);
+
+/** option flags for ubidi_writeReordered() */
+
+/**
+ * option bit for ubidi_writeReordered():
+ * keep combining characters after their base characters in RTL runs
+ *
+ * @see ubidi_writeReordered
+ * @stable ICU 2.0
+ */
+#define UBIDI_KEEP_BASE_COMBINING       1
+
+/**
+ * option bit for ubidi_writeReordered():
+ * replace characters with the "mirrored" property in RTL runs
+ * by their mirror-image mappings
+ *
+ * @see ubidi_writeReordered
+ * @stable ICU 2.0
+ */
+#define UBIDI_DO_MIRRORING              2
+
+/**
+ * option bit for ubidi_writeReordered():
+ * surround the run with LRMs if necessary;
+ * this is part of the approximate "inverse Bidi" algorithm
+ *
+ * <p>This option does not imply corresponding adjustment of the index
+ * mappings.</p>
+ *
+ * @see ubidi_setInverse
+ * @see ubidi_writeReordered
+ * @stable ICU 2.0
+ */
+#define UBIDI_INSERT_LRM_FOR_NUMERIC    4
+
+/**
+ * option bit for ubidi_writeReordered():
+ * remove Bidi control characters
+ * (this does not affect #UBIDI_INSERT_LRM_FOR_NUMERIC)
+ *
+ * <p>This option does not imply corresponding adjustment of the index
+ * mappings.</p>
+ *
+ * @see ubidi_writeReordered
+ * @stable ICU 2.0
+ */
+#define UBIDI_REMOVE_BIDI_CONTROLS      8
+
+/**
+ * option bit for ubidi_writeReordered():
+ * write the output in reverse order
+ *
+ * <p>This has the same effect as calling <code>ubidi_writeReordered()</code>
+ * first without this option, and then calling
+ * <code>ubidi_writeReverse()</code> without mirroring.
+ * Doing this in the same step is faster and avoids a temporary buffer.
+ * An example for using this option is output to a character terminal that
+ * is designed for RTL scripts and stores text in reverse order.</p>
+ *
+ * @see ubidi_writeReordered
+ * @stable ICU 2.0
+ */
+#define UBIDI_OUTPUT_REVERSE            16
+
+/**
+ * Get the length of the source text processed by the last call to
+ * <code>ubidi_setPara()</code>. This length may be different from the length
+ * of the source text if option <code>#UBIDI_OPTION_STREAMING</code>
+ * has been set.
+ * <br>
+ * Note that whenever the length of the text affects the execution or the
+ * result of a function, it is the processed length which must be considered,
+ * except for <code>ubidi_setPara</code> (which receives unprocessed source
+ * text) and <code>ubidi_getLength</code> (which returns the original length
+ * of the source text).<br>
+ * In particular, the processed length is the one to consider in the following
+ * cases:
+ * <ul>
+ * <li>maximum value of the <code>limit</code> argument of
+ * <code>ubidi_setLine</code></li>
+ * <li>maximum value of the <code>charIndex</code> argument of
+ * <code>ubidi_getParagraph</code></li>
+ * <li>maximum value of the <code>charIndex</code> argument of
+ * <code>ubidi_getLevelAt</code></li>
+ * <li>number of elements in the array returned by <code>ubidi_getLevels</code></li>
+ * <li>maximum value of the <code>logicalStart</code> argument of
+ * <code>ubidi_getLogicalRun</code></li>
+ * <li>maximum value of the <code>logicalIndex</code> argument of
+ * <code>ubidi_getVisualIndex</code></li>
+ * <li>number of elements filled in the <code>*indexMap</code> argument of
+ * <code>ubidi_getLogicalMap</code></li>
+ * <li>length of text processed by <code>ubidi_writeReordered</code></li>
+ * </ul>
+ *
+ * @param pBiDi is the paragraph <code>UBiDi</code> object.
+ *
+ * @return The length of the part of the source text processed by
+ *         the last call to <code>ubidi_setPara</code>.
+ * @see ubidi_setPara
+ * @see UBIDI_OPTION_STREAMING
+ * @stable ICU 3.6
+ */
+U_STABLE int32_t U_EXPORT2
+ubidi_getProcessedLength(const UBiDi *pBiDi);
+
+/**
+ * Get the length of the reordered text resulting from the last call to
+ * <code>ubidi_setPara()</code>. This length may be different from the length
+ * of the source text if option <code>#UBIDI_OPTION_INSERT_MARKS</code>
+ * or option <code>#UBIDI_OPTION_REMOVE_CONTROLS</code> has been set.
+ * <br>
+ * This resulting length is the one to consider in the following cases:
+ * <ul>
+ * <li>maximum value of the <code>visualIndex</code> argument of
+ * <code>ubidi_getLogicalIndex</code></li>
+ * <li>number of elements of the <code>*indexMap</code> argument of
+ * <code>ubidi_getVisualMap</code></li>
+ * </ul>
+ * Note that this length stays identical to the source text length if
+ * Bidi marks are inserted or removed using option bits of
+ * <code>ubidi_writeReordered</code>, or if option
+ * <code>#UBIDI_REORDER_INVERSE_NUMBERS_AS_L</code> has been set.
+ *
+ * @param pBiDi is the paragraph <code>UBiDi</code> object.
+ *
+ * @return The length of the reordered text resulting from
+ *         the last call to <code>ubidi_setPara</code>.
+ * @see ubidi_setPara
+ * @see UBIDI_OPTION_INSERT_MARKS
+ * @see UBIDI_OPTION_REMOVE_CONTROLS
+ * @stable ICU 3.6
+ */
+U_STABLE int32_t U_EXPORT2
+ubidi_getResultLength(const UBiDi *pBiDi);
+
+U_CDECL_BEGIN
+
+#ifndef U_HIDE_DEPRECATED_API
+/**
+ * Value returned by <code>UBiDiClassCallback</code> callbacks when
+ * there is no need to override the standard Bidi class for a given code point.
+ *
+ * This constant is deprecated; use u_getIntPropertyMaxValue(UCHAR_BIDI_CLASS)+1 instead.
+ *
+ * @see UBiDiClassCallback
+ * @deprecated ICU 58 The numeric value may change over time, see ICU ticket #12420.
+ */
+#define U_BIDI_CLASS_DEFAULT  U_CHAR_DIRECTION_COUNT
+#endif  // U_HIDE_DEPRECATED_API
+
+/**
+ * Callback type declaration for overriding default Bidi class values with
+ * custom ones.
+ * <p>Usually, the function pointer will be propagated to a <code>UBiDi</code>
+ * object by calling the <code>ubidi_setClassCallback()</code> function;
+ * then the callback will be invoked by the UBA implementation any time the
+ * class of a character is to be determined.</p>
+ *
+ * @param context is a pointer to the callback private data.
+ *
+ * @param c       is the code point to get a Bidi class for.
+ *
+ * @return The directional property / Bidi class for the given code point
+ *         <code>c</code> if the default class has been overridden, or
+ *         <code>#U_BIDI_CLASS_DEFAULT=u_getIntPropertyMaxValue(UCHAR_BIDI_CLASS)+1</code>
+ *         if the standard Bidi class value for <code>c</code> is to be used.
+ * @see ubidi_setClassCallback
+ * @see ubidi_getClassCallback
+ * @stable ICU 3.6
+ */
+typedef UCharDirection U_CALLCONV
+UBiDiClassCallback(const void *context, UChar32 c);
+
+U_CDECL_END
+
+/**
+ * Retrieve the Bidi class for a given code point.
+ * <p>If a <code>#UBiDiClassCallback</code> callback is defined and returns a
+ * value other than <code>#U_BIDI_CLASS_DEFAULT=u_getIntPropertyMaxValue(UCHAR_BIDI_CLASS)+1</code>,
+ * that value is used; otherwise the default class determination mechanism is invoked.</p>
+ *
+ * @param pBiDi is the paragraph <code>UBiDi</code> object.
+ *
+ * @param c     is the code point whose Bidi class must be retrieved.
+ *
+ * @return The Bidi class for character <code>c</code> based
+ *         on the given <code>pBiDi</code> instance.
+ * @see UBiDiClassCallback
+ * @stable ICU 3.6
+ */
+U_STABLE UCharDirection U_EXPORT2
+ubidi_getCustomizedClass(UBiDi *pBiDi, UChar32 c);
+
+/**
+ * Set the callback function and callback data used by the UBA
+ * implementation for Bidi class determination.
+ * <p>This may be useful for assigning Bidi classes to PUA characters, or
+ * for special application needs. For instance, an application may want to
+ * handle all spaces like L or R characters (according to the base direction)
+ * when creating the visual ordering of logical lines which are part of a report
+ * organized in columns: there should not be interaction between adjacent
+ * cells.<p>
+ *
+ * @param pBiDi is the paragraph <code>UBiDi</code> object.
+ *
+ * @param newFn is the new callback function pointer.
+ *
+ * @param newContext is the new callback context pointer. This can be NULL.
+ *
+ * @param oldFn fillin: Returns the old callback function pointer. This can be
+ *                      NULL.
+ *
+ * @param oldContext fillin: Returns the old callback's context. This can be
+ *                           NULL.
+ *
+ * @param pErrorCode must be a valid pointer to an error code value.
+ *
+ * @see ubidi_getClassCallback
+ * @stable ICU 3.6
+ */
+U_STABLE void U_EXPORT2
+ubidi_setClassCallback(UBiDi *pBiDi, UBiDiClassCallback *newFn,
+                       const void *newContext, UBiDiClassCallback **oldFn,
+                       const void **oldContext, UErrorCode *pErrorCode);
+
+/**
+ * Get the current callback function used for Bidi class determination.
+ *
+ * @param pBiDi is the paragraph <code>UBiDi</code> object.
+ *
+ * @param fn fillin: Returns the callback function pointer.
+ *
+ * @param context fillin: Returns the callback's private context.
+ *
+ * @see ubidi_setClassCallback
+ * @stable ICU 3.6
+ */
+U_STABLE void U_EXPORT2
+ubidi_getClassCallback(UBiDi *pBiDi, UBiDiClassCallback **fn, const void **context);
+
+/**
+ * Take a <code>UBiDi</code> object containing the reordering
+ * information for a piece of text (one or more paragraphs) set by
+ * <code>ubidi_setPara()</code> or for a line of text set by
+ * <code>ubidi_setLine()</code> and write a reordered string to the
+ * destination buffer.
+ *
+ * This function preserves the integrity of characters with multiple
+ * code units and (optionally) combining characters.
+ * Characters in RTL runs can be replaced by mirror-image characters
+ * in the destination buffer. Note that "real" mirroring has
+ * to be done in a rendering engine by glyph selection
+ * and that for many "mirrored" characters there are no
+ * Unicode characters as mirror-image equivalents.
+ * There are also options to insert or remove Bidi control
+ * characters; see the description of the <code>destSize</code>
+ * and <code>options</code> parameters and of the option bit flags.
+ *
+ * @param pBiDi A pointer to a <code>UBiDi</code> object that
+ *              is set by <code>ubidi_setPara()</code> or
+ *              <code>ubidi_setLine()</code> and contains the reordering
+ *              information for the text that it was defined for,
+ *              as well as a pointer to that text.<br><br>
+ *              The text was aliased (only the pointer was stored
+ *              without copying the contents) and must not have been modified
+ *              since the <code>ubidi_setPara()</code> call.
+ *
+ * @param dest A pointer to where the reordered text is to be copied.
+ *             The source text and <code>dest[destSize]</code>
+ *             must not overlap.
+ *
+ * @param destSize The size of the <code>dest</code> buffer,
+ *                 in number of UChars.
+ *                 If the <code>UBIDI_INSERT_LRM_FOR_NUMERIC</code>
+ *                 option is set, then the destination length could be
+ *                 as large as
+ *                 <code>ubidi_getLength(pBiDi)+2*ubidi_countRuns(pBiDi)</code>.
+ *                 If the <code>UBIDI_REMOVE_BIDI_CONTROLS</code> option
+ *                 is set, then the destination length may be less than
+ *                 <code>ubidi_getLength(pBiDi)</code>.
+ *                 If none of these options is set, then the destination length
+ *                 will be exactly <code>ubidi_getProcessedLength(pBiDi)</code>.
+ *
+ * @param options A bit set of options for the reordering that control
+ *                how the reordered text is written.
+ *                The options include mirroring the characters on a code
+ *                point basis and inserting LRM characters, which is used
+ *                especially for transforming visually stored text
+ *                to logically stored text (although this is still an
+ *                imperfect implementation of an "inverse Bidi" algorithm
+ *                because it uses the "forward Bidi" algorithm at its core).
+ *                The available options are:
+ *                <code>#UBIDI_DO_MIRRORING</code>,
+ *                <code>#UBIDI_INSERT_LRM_FOR_NUMERIC</code>,
+ *                <code>#UBIDI_KEEP_BASE_COMBINING</code>,
+ *                <code>#UBIDI_OUTPUT_REVERSE</code>,
+ *                <code>#UBIDI_REMOVE_BIDI_CONTROLS</code>
+ *
+ * @param pErrorCode must be a valid pointer to an error code value.
+ *
+ * @return The length of the output string.
+ *
+ * @see ubidi_getProcessedLength
+ * @stable ICU 2.0
+ */
+U_STABLE int32_t U_EXPORT2
+ubidi_writeReordered(UBiDi *pBiDi,
+                     UChar *dest, int32_t destSize,
+                     uint16_t options,
+                     UErrorCode *pErrorCode);
+
+/**
+ * Reverse a Right-To-Left run of Unicode text.
+ *
+ * This function preserves the integrity of characters with multiple
+ * code units and (optionally) combining characters.
+ * Characters can be replaced by mirror-image characters
+ * in the destination buffer. Note that "real" mirroring has
+ * to be done in a rendering engine by glyph selection
+ * and that for many "mirrored" characters there are no
+ * Unicode characters as mirror-image equivalents.
+ * There are also options to insert or remove Bidi control
+ * characters.
+ *
+ * This function is the implementation for reversing RTL runs as part
+ * of <code>ubidi_writeReordered()</code>. For detailed descriptions
+ * of the parameters, see there.
+ * Since no Bidi controls are inserted here, the output string length
+ * will never exceed <code>srcLength</code>.
+ *
+ * @see ubidi_writeReordered
+ *
+ * @param src A pointer to the RTL run text.
+ *
+ * @param srcLength The length of the RTL run.
+ *
+ * @param dest A pointer to where the reordered text is to be copied.
+ *             <code>src[srcLength]</code> and <code>dest[destSize]</code>
+ *             must not overlap.
+ *
+ * @param destSize The size of the <code>dest</code> buffer,
+ *                 in number of UChars.
+ *                 If the <code>UBIDI_REMOVE_BIDI_CONTROLS</code> option
+ *                 is set, then the destination length may be less than
+ *                 <code>srcLength</code>.
+ *                 If this option is not set, then the destination length
+ *                 will be exactly <code>srcLength</code>.
+ *
+ * @param options A bit set of options for the reordering that control
+ *                how the reordered text is written.
+ *                See the <code>options</code> parameter in <code>ubidi_writeReordered()</code>.
+ *
+ * @param pErrorCode must be a valid pointer to an error code value.
+ *
+ * @return The length of the output string.
+ * @stable ICU 2.0
+ */
+U_STABLE int32_t U_EXPORT2
+ubidi_writeReverse(const UChar *src, int32_t srcLength,
+                   UChar *dest, int32_t destSize,
+                   uint16_t options,
+                   UErrorCode *pErrorCode);
+
+/*#define BIDI_SAMPLE_CODE*/
+/*@}*/
+
+#endif
diff --git a/vendor/icu/include/unicode/uchar.h b/vendor/icu/include/unicode/uchar.h
new file mode 100644
index 0000000000..ad5d2f1c98
--- /dev/null
+++ b/vendor/icu/include/unicode/uchar.h
@@ -0,0 +1,3731 @@
+// © 2016 and later: Unicode, Inc. and others.
+// License & terms of use: http://www.unicode.org/copyright.html
+/*
+**********************************************************************
+*   Copyright (C) 1997-2016, International Business Machines
+*   Corporation and others.  All Rights Reserved.
+**********************************************************************
+*
+* File UCHAR.H
+*
+* Modification History:
+*
+*   Date        Name        Description
+*   04/02/97    aliu        Creation.
+*   03/29/99    helena      Updated for C APIs.
+*   4/15/99     Madhu       Updated for C Implementation and Javadoc
+*   5/20/99     Madhu       Added the function u_getVersion()
+*   8/19/1999   srl         Upgraded scripts to Unicode 3.0
+*   8/27/1999   schererm    UCharDirection constants: U_...
+*   11/11/1999  weiv        added u_isalnum(), cleaned comments
+*   01/11/2000  helena      Renamed u_getVersion to u_getUnicodeVersion().
+******************************************************************************
+*/
+
+#ifndef UCHAR_H
+#define UCHAR_H
+
+#include <unicode/utypes.h>
+#include <unicode/stringoptions.h>
+
+U_CDECL_BEGIN
+
+/*==========================================================================*/
+/* Unicode version number                                                   */
+/*==========================================================================*/
+/**
+ * Unicode version number, default for the current ICU version.
+ * The actual Unicode Character Database (UCD) data is stored in uprops.dat
+ * and may be generated from UCD files from a different Unicode version.
+ * Call u_getUnicodeVersion to get the actual Unicode version of the data.
+ *
+ * @see u_getUnicodeVersion
+ * @stable ICU 2.0
+ */
+#define U_UNICODE_VERSION "10.0"
+
+/**
+ * \file
+ * \brief C API: Unicode Properties
+ *
+ * This C API provides low-level access to the Unicode Character Database.
+ * In addition to raw property values, some convenience functions calculate
+ * derived properties, for example for Java-style programming.
+ *
+ * Unicode assigns each code point (not just assigned character) values for
+ * many properties.
+ * Most of them are simple boolean flags, or constants from a small enumerated list.
+ * For some properties, values are strings or other relatively more complex types.
+ *
+ * For more information see
+ * "About the Unicode Character Database" (http://www.unicode.org/ucd/)
+ * and the ICU User Guide chapter on Properties (http://icu-project.org/userguide/properties.html).
+ *
+ * Many functions are designed to match java.lang.Character functions.
+ * See the individual function documentation,
+ * and see the JDK 1.4 java.lang.Character documentation
+ * at http://java.sun.com/j2se/1.4/docs/api/java/lang/Character.html
+ *
+ * There are also functions that provide easy migration from C/POSIX functions
+ * like isblank(). Their use is generally discouraged because the C/POSIX
+ * standards do not define their semantics beyond the ASCII range, which means
+ * that different implementations exhibit very different behavior.
+ * Instead, Unicode properties should be used directly.
+ *
+ * There are also only a few, broad C/POSIX character classes, and they tend
+ * to be used for conflicting purposes. For example, the "isalpha()" class
+ * is sometimes used to determine word boundaries, while a more sophisticated
+ * approach would at least distinguish initial letters from continuation
+ * characters (the latter including combining marks).
+ * (In ICU, BreakIterator is the most sophisticated API for word boundaries.)
+ * Another example: There is no "istitle()" class for titlecase characters.
+ *
+ * ICU 3.4 and later provides API access for all twelve C/POSIX character classes.
+ * ICU implements them according to the Standard Recommendations in
+ * Annex C: Compatibility Properties of UTS #18 Unicode Regular Expressions
+ * (http://www.unicode.org/reports/tr18/#Compatibility_Properties).
+ *
+ * API access for C/POSIX character classes is as follows:
+ * - alpha:     u_isUAlphabetic(c) or u_hasBinaryProperty(c, UCHAR_ALPHABETIC)
+ * - lower:     u_isULowercase(c) or u_hasBinaryProperty(c, UCHAR_LOWERCASE)
+ * - upper:     u_isUUppercase(c) or u_hasBinaryProperty(c, UCHAR_UPPERCASE)
+ * - punct:     u_ispunct(c)
+ * - digit:     u_isdigit(c) or u_charType(c)==U_DECIMAL_DIGIT_NUMBER
+ * - xdigit:    u_isxdigit(c) or u_hasBinaryProperty(c, UCHAR_POSIX_XDIGIT)
+ * - alnum:     u_hasBinaryProperty(c, UCHAR_POSIX_ALNUM)
+ * - space:     u_isUWhiteSpace(c) or u_hasBinaryProperty(c, UCHAR_WHITE_SPACE)
+ * - blank:     u_isblank(c) or u_hasBinaryProperty(c, UCHAR_POSIX_BLANK)
+ * - cntrl:     u_charType(c)==U_CONTROL_CHAR
+ * - graph:     u_hasBinaryProperty(c, UCHAR_POSIX_GRAPH)
+ * - print:     u_hasBinaryProperty(c, UCHAR_POSIX_PRINT)
+ *
+ * Note: Some of the u_isxyz() functions in uchar.h predate, and do not match,
+ * the Standard Recommendations in UTS #18. Instead, they match Java
+ * functions according to their API documentation.
+ *
+ * \htmlonly
+ * The C/POSIX character classes are also available in UnicodeSet patterns,
+ * using patterns like [:graph:] or \p{graph}.
+ * \endhtmlonly
+ *
+ * Note: There are several ICU whitespace functions.
+ * Comparison:
+ * - u_isUWhiteSpace=UCHAR_WHITE_SPACE: Unicode White_Space property;
+ *       most of general categories "Z" (separators) + most whitespace ISO controls
+ *       (including no-break spaces, but excluding IS1..IS4)
+ * - u_isWhitespace: Java isWhitespace; Z + whitespace ISO controls but excluding no-break spaces
+ * - u_isJavaSpaceChar: Java isSpaceChar; just Z (including no-break spaces)
+ * - u_isspace: Z + whitespace ISO controls (including no-break spaces)
+ * - u_isblank: "horizontal spaces" = TAB + Zs
+ */
+
+/**
+ * Constants.
+ */
+
+/** The lowest Unicode code point value. Code points are non-negative. @stable ICU 2.0 */
+#define UCHAR_MIN_VALUE 0
+
+/**
+ * The highest Unicode code point value (scalar value) according to
+ * The Unicode Standard. This is a 21-bit value (20.1 bits, rounded up).
+ * For a single character, UChar32 is a simple type that can hold any code point value.
+ *
+ * @see UChar32
+ * @stable ICU 2.0
+ */
+#define UCHAR_MAX_VALUE 0x10ffff
+
+/**
+ * Get a single-bit bit set (a flag) from a bit number 0..31.
+ * @stable ICU 2.1
+ */
+#define U_MASK(x) ((uint32_t)1<<(x))
+
+/**
+ * Selection constants for Unicode properties.
+ * These constants are used in functions like u_hasBinaryProperty to select
+ * one of the Unicode properties.
+ *
+ * The properties APIs are intended to reflect Unicode properties as defined
+ * in the Unicode Character Database (UCD) and Unicode Technical Reports (UTR).
+ *
+ * For details about the properties see
+ * UAX #44: Unicode Character Database (http://www.unicode.org/reports/tr44/).
+ *
+ * Important: If ICU is built with UCD files from Unicode versions below, e.g., 3.2,
+ * then properties marked with "new in Unicode 3.2" are not or not fully available.
+ * Check u_getUnicodeVersion to be sure.
+ *
+ * @see u_hasBinaryProperty
+ * @see u_getIntPropertyValue
+ * @see u_getUnicodeVersion
+ * @stable ICU 2.1
+ */
+typedef enum UProperty {
+    /*
+     * Note: UProperty constants are parsed by preparseucd.py.
+     * It matches lines like
+     *     UCHAR_<Unicode property name>=<integer>,
+     */
+
+    /*  Note: Place UCHAR_ALPHABETIC before UCHAR_BINARY_START so that
+    debuggers display UCHAR_ALPHABETIC as the symbolic name for 0,
+    rather than UCHAR_BINARY_START.  Likewise for other *_START
+    identifiers. */
+
+    /** Binary property Alphabetic. Same as u_isUAlphabetic, different from u_isalpha.
+        Lu+Ll+Lt+Lm+Lo+Nl+Other_Alphabetic @stable ICU 2.1 */
+    UCHAR_ALPHABETIC=0,
+    /** First constant for binary Unicode properties. @stable ICU 2.1 */
+    UCHAR_BINARY_START=UCHAR_ALPHABETIC,
+    /** Binary property ASCII_Hex_Digit. 0-9 A-F a-f @stable ICU 2.1 */
+    UCHAR_ASCII_HEX_DIGIT=1,
+    /** Binary property Bidi_Control.
+        Format controls which have specific functions
+        in the Bidi Algorithm. @stable ICU 2.1 */
+    UCHAR_BIDI_CONTROL=2,
+    /** Binary property Bidi_Mirrored.
+        Characters that may change display in RTL text.
+        Same as u_isMirrored.
+        See Bidi Algorithm, UTR 9. @stable ICU 2.1 */
+    UCHAR_BIDI_MIRRORED=3,
+    /** Binary property Dash. Variations of dashes. @stable ICU 2.1 */
+    UCHAR_DASH=4,
+    /** Binary property Default_Ignorable_Code_Point (new in Unicode 3.2).
+        Ignorable in most processing.
+        <2060..206F, FFF0..FFFB, E0000..E0FFF>+Other_Default_Ignorable_Code_Point+(Cf+Cc+Cs-White_Space) @stable ICU 2.1 */
+    UCHAR_DEFAULT_IGNORABLE_CODE_POINT=5,
+    /** Binary property Deprecated (new in Unicode 3.2).
+        The usage of deprecated characters is strongly discouraged. @stable ICU 2.1 */
+    UCHAR_DEPRECATED=6,
+    /** Binary property Diacritic. Characters that linguistically modify
+        the meaning of another character to which they apply. @stable ICU 2.1 */
+    UCHAR_DIACRITIC=7,
+    /** Binary property Extender.
+        Extend the value or shape of a preceding alphabetic character,
+        e.g., length and iteration marks. @stable ICU 2.1 */
+    UCHAR_EXTENDER=8,
+    /** Binary property Full_Composition_Exclusion.
+        CompositionExclusions.txt+Singleton Decompositions+
+        Non-Starter Decompositions. @stable ICU 2.1 */
+    UCHAR_FULL_COMPOSITION_EXCLUSION=9,
+    /** Binary property Grapheme_Base (new in Unicode 3.2).
+        For programmatic determination of grapheme cluster boundaries.
+        [0..10FFFF]-Cc-Cf-Cs-Co-Cn-Zl-Zp-Grapheme_Link-Grapheme_Extend-CGJ @stable ICU 2.1 */
+    UCHAR_GRAPHEME_BASE=10,
+    /** Binary property Grapheme_Extend (new in Unicode 3.2).
+        For programmatic determination of grapheme cluster boundaries.
+        Me+Mn+Mc+Other_Grapheme_Extend-Grapheme_Link-CGJ @stable ICU 2.1 */
+    UCHAR_GRAPHEME_EXTEND=11,
+    /** Binary property Grapheme_Link (new in Unicode 3.2).
+        For programmatic determination of grapheme cluster boundaries. @stable ICU 2.1 */
+    UCHAR_GRAPHEME_LINK=12,
+    /** Binary property Hex_Digit.
+        Characters commonly used for hexadecimal numbers. @stable ICU 2.1 */
+    UCHAR_HEX_DIGIT=13,
+    /** Binary property Hyphen. Dashes used to mark connections
+        between pieces of words, plus the Katakana middle dot. @stable ICU 2.1 */
+    UCHAR_HYPHEN=14,
+    /** Binary property ID_Continue.
+        Characters that can continue an identifier.
+        DerivedCoreProperties.txt also says "NOTE: Cf characters should be filtered out."
+        ID_Start+Mn+Mc+Nd+Pc @stable ICU 2.1 */
+    UCHAR_ID_CONTINUE=15,
+    /** Binary property ID_Start.
+        Characters that can start an identifier.
+        Lu+Ll+Lt+Lm+Lo+Nl @stable ICU 2.1 */
+    UCHAR_ID_START=16,
+    /** Binary property Ideographic.
+        CJKV ideographs. @stable ICU 2.1 */
+    UCHAR_IDEOGRAPHIC=17,
+    /** Binary property IDS_Binary_Operator (new in Unicode 3.2).
+        For programmatic determination of
+        Ideographic Description Sequences. @stable ICU 2.1 */
+    UCHAR_IDS_BINARY_OPERATOR=18,
+    /** Binary property IDS_Trinary_Operator (new in Unicode 3.2).
+        For programmatic determination of
+        Ideographic Description Sequences. @stable ICU 2.1 */
+    UCHAR_IDS_TRINARY_OPERATOR=19,
+    /** Binary property Join_Control.
+        Format controls for cursive joining and ligation. @stable ICU 2.1 */
+    UCHAR_JOIN_CONTROL=20,
+    /** Binary property Logical_Order_Exception (new in Unicode 3.2).
+        Characters that do not use logical order and
+        require special handling in most processing. @stable ICU 2.1 */
+    UCHAR_LOGICAL_ORDER_EXCEPTION=21,
+    /** Binary property Lowercase. Same as u_isULowercase, different from u_islower.
+        Ll+Other_Lowercase @stable ICU 2.1 */
+    UCHAR_LOWERCASE=22,
+    /** Binary property Math. Sm+Other_Math @stable ICU 2.1 */
+    UCHAR_MATH=23,
+    /** Binary property Noncharacter_Code_Point.
+        Code points that are explicitly defined as illegal
+        for the encoding of characters. @stable ICU 2.1 */
+    UCHAR_NONCHARACTER_CODE_POINT=24,
+    /** Binary property Quotation_Mark. @stable ICU 2.1 */
+    UCHAR_QUOTATION_MARK=25,
+    /** Binary property Radical (new in Unicode 3.2).
+        For programmatic determination of
+        Ideographic Description Sequences. @stable ICU 2.1 */
+    UCHAR_RADICAL=26,
+    /** Binary property Soft_Dotted (new in Unicode 3.2).
+        Characters with a "soft dot", like i or j.
+        An accent placed on these characters causes
+        the dot to disappear. @stable ICU 2.1 */
+    UCHAR_SOFT_DOTTED=27,
+    /** Binary property Terminal_Punctuation.
+        Punctuation characters that generally mark
+        the end of textual units. @stable ICU 2.1 */
+    UCHAR_TERMINAL_PUNCTUATION=28,
+    /** Binary property Unified_Ideograph (new in Unicode 3.2).
+        For programmatic determination of
+        Ideographic Description Sequences. @stable ICU 2.1 */
+    UCHAR_UNIFIED_IDEOGRAPH=29,
+    /** Binary property Uppercase. Same as u_isUUppercase, different from u_isupper.
+        Lu+Other_Uppercase @stable ICU 2.1 */
+    UCHAR_UPPERCASE=30,
+    /** Binary property White_Space.
+        Same as u_isUWhiteSpace, different from u_isspace and u_isWhitespace.
+        Space characters+TAB+CR+LF-ZWSP-ZWNBSP @stable ICU 2.1 */
+    UCHAR_WHITE_SPACE=31,
+    /** Binary property XID_Continue.
+        ID_Continue modified to allow closure under
+        normalization forms NFKC and NFKD. @stable ICU 2.1 */
+    UCHAR_XID_CONTINUE=32,
+    /** Binary property XID_Start. ID_Start modified to allow
+        closure under normalization forms NFKC and NFKD. @stable ICU 2.1 */
+    UCHAR_XID_START=33,
+    /** Binary property Case_Sensitive. Either the source of a case
+        mapping or _in_ the target of a case mapping. Not the same as
+        the general category Cased_Letter. @stable ICU 2.6 */
+   UCHAR_CASE_SENSITIVE=34,
+    /** Binary property STerm (new in Unicode 4.0.1).
+        Sentence Terminal. Used in UAX #29: Text Boundaries
+        (http://www.unicode.org/reports/tr29/)
+        @stable ICU 3.0 */
+    UCHAR_S_TERM=35,
+    /** Binary property Variation_Selector (new in Unicode 4.0.1).
+        Indicates all those characters that qualify as Variation Selectors.
+        For details on the behavior of these characters,
+        see StandardizedVariants.html and 15.6 Variation Selectors.
+        @stable ICU 3.0 */
+    UCHAR_VARIATION_SELECTOR=36,
+    /** Binary property NFD_Inert.
+        ICU-specific property for characters that are inert under NFD,
+        i.e., they do not interact with adjacent characters.
+        See the documentation for the Normalizer2 class and the
+        Normalizer2::isInert() method.
+        @stable ICU 3.0 */
+    UCHAR_NFD_INERT=37,
+    /** Binary property NFKD_Inert.
+        ICU-specific property for characters that are inert under NFKD,
+        i.e., they do not interact with adjacent characters.
+        See the documentation for the Normalizer2 class and the
+        Normalizer2::isInert() method.
+        @stable ICU 3.0 */
+    UCHAR_NFKD_INERT=38,
+    /** Binary property NFC_Inert.
+        ICU-specific property for characters that are inert under NFC,
+        i.e., they do not interact with adjacent characters.
+        See the documentation for the Normalizer2 class and the
+        Normalizer2::isInert() method.
+        @stable ICU 3.0 */
+    UCHAR_NFC_INERT=39,
+    /** Binary property NFKC_Inert.
+        ICU-specific property for characters that are inert under NFKC,
+        i.e., they do not interact with adjacent characters.
+        See the documentation for the Normalizer2 class and the
+        Normalizer2::isInert() method.
+        @stable ICU 3.0 */
+    UCHAR_NFKC_INERT=40,
+    /** Binary Property Segment_Starter.
+        ICU-specific property for characters that are starters in terms of
+        Unicode normalization and combining character sequences.
+        They have ccc=0 and do not occur in non-initial position of the
+        canonical decomposition of any character
+        (like a-umlaut in NFD and a Jamo T in an NFD(Hangul LVT)).
+        ICU uses this property for segmenting a string for generating a set of
+        canonically equivalent strings, e.g. for canonical closure while
+        processing collation tailoring rules.
+        @stable ICU 3.0 */
+    UCHAR_SEGMENT_STARTER=41,
+    /** Binary property Pattern_Syntax (new in Unicode 4.1).
+        See UAX #31 Identifier and Pattern Syntax
+        (http://www.unicode.org/reports/tr31/)
+        @stable ICU 3.4 */
+    UCHAR_PATTERN_SYNTAX=42,
+    /** Binary property Pattern_White_Space (new in Unicode 4.1).
+        See UAX #31 Identifier and Pattern Syntax
+        (http://www.unicode.org/reports/tr31/)
+        @stable ICU 3.4 */
+    UCHAR_PATTERN_WHITE_SPACE=43,
+    /** Binary property alnum (a C/POSIX character class).
+        Implemented according to the UTS #18 Annex C Standard Recommendation.
+        See the uchar.h file documentation.
+        @stable ICU 3.4 */
+    UCHAR_POSIX_ALNUM=44,
+    /** Binary property blank (a C/POSIX character class).
+        Implemented according to the UTS #18 Annex C Standard Recommendation.
+        See the uchar.h file documentation.
+        @stable ICU 3.4 */
+    UCHAR_POSIX_BLANK=45,
+    /** Binary property graph (a C/POSIX character class).
+        Implemented according to the UTS #18 Annex C Standard Recommendation.
+        See the uchar.h file documentation.
+        @stable ICU 3.4 */
+    UCHAR_POSIX_GRAPH=46,
+    /** Binary property print (a C/POSIX character class).
+        Implemented according to the UTS #18 Annex C Standard Recommendation.
+        See the uchar.h file documentation.
+        @stable ICU 3.4 */
+    UCHAR_POSIX_PRINT=47,
+    /** Binary property xdigit (a C/POSIX character class).
+        Implemented according to the UTS #18 Annex C Standard Recommendation.
+        See the uchar.h file documentation.
+        @stable ICU 3.4 */
+    UCHAR_POSIX_XDIGIT=48,
+    /** Binary property Cased. For Lowercase, Uppercase and Titlecase characters. @stable ICU 4.4 */
+    UCHAR_CASED=49,
+    /** Binary property Case_Ignorable. Used in context-sensitive case mappings. @stable ICU 4.4 */
+    UCHAR_CASE_IGNORABLE=50,
+    /** Binary property Changes_When_Lowercased. @stable ICU 4.4 */
+    UCHAR_CHANGES_WHEN_LOWERCASED=51,
+    /** Binary property Changes_When_Uppercased. @stable ICU 4.4 */
+    UCHAR_CHANGES_WHEN_UPPERCASED=52,
+    /** Binary property Changes_When_Titlecased. @stable ICU 4.4 */
+    UCHAR_CHANGES_WHEN_TITLECASED=53,
+    /** Binary property Changes_When_Casefolded. @stable ICU 4.4 */
+    UCHAR_CHANGES_WHEN_CASEFOLDED=54,
+    /** Binary property Changes_When_Casemapped. @stable ICU 4.4 */
+    UCHAR_CHANGES_WHEN_CASEMAPPED=55,
+    /** Binary property Changes_When_NFKC_Casefolded. @stable ICU 4.4 */
+    UCHAR_CHANGES_WHEN_NFKC_CASEFOLDED=56,
+    /**
+     * Binary property Emoji.
+     * See http://www.unicode.org/reports/tr51/#Emoji_Properties
+     *
+     * @stable ICU 57
+     */
+    UCHAR_EMOJI=57,
+    /**
+     * Binary property Emoji_Presentation.
+     * See http://www.unicode.org/reports/tr51/#Emoji_Properties
+     *
+     * @stable ICU 57
+     */
+    UCHAR_EMOJI_PRESENTATION=58,
+    /**
+     * Binary property Emoji_Modifier.
+     * See http://www.unicode.org/reports/tr51/#Emoji_Properties
+     *
+     * @stable ICU 57
+     */
+    UCHAR_EMOJI_MODIFIER=59,
+    /**
+     * Binary property Emoji_Modifier_Base.
+     * See http://www.unicode.org/reports/tr51/#Emoji_Properties
+     *
+     * @stable ICU 57
+     */
+    UCHAR_EMOJI_MODIFIER_BASE=60,
+    /**
+     * Binary property Emoji_Component.
+     * See http://www.unicode.org/reports/tr51/#Emoji_Properties
+     *
+     * @stable ICU 60
+     */
+    UCHAR_EMOJI_COMPONENT=61,
+    /**
+     * Binary property Regional_Indicator.
+     * @stable ICU 60
+     */
+    UCHAR_REGIONAL_INDICATOR=62,
+    /**
+     * Binary property Prepended_Concatenation_Mark.
+     * @stable ICU 60
+     */
+    UCHAR_PREPENDED_CONCATENATION_MARK=63,
+#ifndef U_HIDE_DEPRECATED_API
+    /**
+     * One more than the last constant for binary Unicode properties.
+     * @deprecated ICU 58 The numeric value may change over time, see ICU ticket #12420.
+     */
+    UCHAR_BINARY_LIMIT,
+#endif  // U_HIDE_DEPRECATED_API
+
+    /** Enumerated property Bidi_Class.
+        Same as u_charDirection, returns UCharDirection values. @stable ICU 2.2 */
+    UCHAR_BIDI_CLASS=0x1000,
+    /** First constant for enumerated/integer Unicode properties. @stable ICU 2.2 */
+    UCHAR_INT_START=UCHAR_BIDI_CLASS,
+    /** Enumerated property Block.
+        Same as ublock_getCode, returns UBlockCode values. @stable ICU 2.2 */
+    UCHAR_BLOCK=0x1001,
+    /** Enumerated property Canonical_Combining_Class.
+        Same as u_getCombiningClass, returns 8-bit numeric values. @stable ICU 2.2 */
+    UCHAR_CANONICAL_COMBINING_CLASS=0x1002,
+    /** Enumerated property Decomposition_Type.
+        Returns UDecompositionType values. @stable ICU 2.2 */
+    UCHAR_DECOMPOSITION_TYPE=0x1003,
+    /** Enumerated property East_Asian_Width.
+        See http://www.unicode.org/reports/tr11/
+        Returns UEastAsianWidth values. @stable ICU 2.2 */
+    UCHAR_EAST_ASIAN_WIDTH=0x1004,
+    /** Enumerated property General_Category.
+        Same as u_charType, returns UCharCategory values. @stable ICU 2.2 */
+    UCHAR_GENERAL_CATEGORY=0x1005,
+    /** Enumerated property Joining_Group.
+        Returns UJoiningGroup values. @stable ICU 2.2 */
+    UCHAR_JOINING_GROUP=0x1006,
+    /** Enumerated property Joining_Type.
+        Returns UJoiningType values. @stable ICU 2.2 */
+    UCHAR_JOINING_TYPE=0x1007,
+    /** Enumerated property Line_Break.
+        Returns ULineBreak values. @stable ICU 2.2 */
+    UCHAR_LINE_BREAK=0x1008,
+    /** Enumerated property Numeric_Type.
+        Returns UNumericType values. @stable ICU 2.2 */
+    UCHAR_NUMERIC_TYPE=0x1009,
+    /** Enumerated property Script.
+        Same as uscript_getScript, returns UScriptCode values. @stable ICU 2.2 */
+    UCHAR_SCRIPT=0x100A,
+    /** Enumerated property Hangul_Syllable_Type, new in Unicode 4.
+        Returns UHangulSyllableType values. @stable ICU 2.6 */
+    UCHAR_HANGUL_SYLLABLE_TYPE=0x100B,
+    /** Enumerated property NFD_Quick_Check.
+        Returns UNormalizationCheckResult values. @stable ICU 3.0 */
+    UCHAR_NFD_QUICK_CHECK=0x100C,
+    /** Enumerated property NFKD_Quick_Check.
+        Returns UNormalizationCheckResult values. @stable ICU 3.0 */
+    UCHAR_NFKD_QUICK_CHECK=0x100D,
+    /** Enumerated property NFC_Quick_Check.
+        Returns UNormalizationCheckResult values. @stable ICU 3.0 */
+    UCHAR_NFC_QUICK_CHECK=0x100E,
+    /** Enumerated property NFKC_Quick_Check.
+        Returns UNormalizationCheckResult values. @stable ICU 3.0 */
+    UCHAR_NFKC_QUICK_CHECK=0x100F,
+    /** Enumerated property Lead_Canonical_Combining_Class.
+        ICU-specific property for the ccc of the first code point
+        of the decomposition, or lccc(c)=ccc(NFD(c)[0]).
+        Useful for checking for canonically ordered text;
+        see UNORM_FCD and http://www.unicode.org/notes/tn5/#FCD .
+        Returns 8-bit numeric values like UCHAR_CANONICAL_COMBINING_CLASS. @stable ICU 3.0 */
+    UCHAR_LEAD_CANONICAL_COMBINING_CLASS=0x1010,
+    /** Enumerated property Trail_Canonical_Combining_Class.
+        ICU-specific property for the ccc of the last code point
+        of the decomposition, or tccc(c)=ccc(NFD(c)[last]).
+        Useful for checking for canonically ordered text;
+        see UNORM_FCD and http://www.unicode.org/notes/tn5/#FCD .
+        Returns 8-bit numeric values like UCHAR_CANONICAL_COMBINING_CLASS. @stable ICU 3.0 */
+    UCHAR_TRAIL_CANONICAL_COMBINING_CLASS=0x1011,
+    /** Enumerated property Grapheme_Cluster_Break (new in Unicode 4.1).
+        Used in UAX #29: Text Boundaries
+        (http://www.unicode.org/reports/tr29/)
+        Returns UGraphemeClusterBreak values. @stable ICU 3.4 */
+    UCHAR_GRAPHEME_CLUSTER_BREAK=0x1012,
+    /** Enumerated property Sentence_Break (new in Unicode 4.1).
+        Used in UAX #29: Text Boundaries
+        (http://www.unicode.org/reports/tr29/)
+        Returns USentenceBreak values. @stable ICU 3.4 */
+    UCHAR_SENTENCE_BREAK=0x1013,
+    /** Enumerated property Word_Break (new in Unicode 4.1).
+        Used in UAX #29: Text Boundaries
+        (http://www.unicode.org/reports/tr29/)
+        Returns UWordBreakValues values. @stable ICU 3.4 */
+    UCHAR_WORD_BREAK=0x1014,
+    /** Enumerated property Bidi_Paired_Bracket_Type (new in Unicode 6.3).
+        Used in UAX #9: Unicode Bidirectional Algorithm
+        (http://www.unicode.org/reports/tr9/)
+        Returns UBidiPairedBracketType values. @stable ICU 52 */
+    UCHAR_BIDI_PAIRED_BRACKET_TYPE=0x1015,
+#ifndef U_HIDE_DEPRECATED_API
+    /**
+     * One more than the last constant for enumerated/integer Unicode properties.
+     * @deprecated ICU 58 The numeric value may change over time, see ICU ticket #12420.
+     */
+    UCHAR_INT_LIMIT=0x1016,
+#endif  // U_HIDE_DEPRECATED_API
+
+    /** Bitmask property General_Category_Mask.
+        This is the General_Category property returned as a bit mask.
+        When used in u_getIntPropertyValue(c), same as U_MASK(u_charType(c)),
+        returns bit masks for UCharCategory values where exactly one bit is set.
+        When used with u_getPropertyValueName() and u_getPropertyValueEnum(),
+        a multi-bit mask is used for sets of categories like "Letters".
+        Mask values should be cast to uint32_t.
+        @stable ICU 2.4 */
+    UCHAR_GENERAL_CATEGORY_MASK=0x2000,
+    /** First constant for bit-mask Unicode properties. @stable ICU 2.4 */
+    UCHAR_MASK_START=UCHAR_GENERAL_CATEGORY_MASK,
+#ifndef U_HIDE_DEPRECATED_API
+    /**
+     * One more than the last constant for bit-mask Unicode properties.
+     * @deprecated ICU 58 The numeric value may change over time, see ICU ticket #12420.
+     */
+    UCHAR_MASK_LIMIT=0x2001,
+#endif  // U_HIDE_DEPRECATED_API
+
+    /** Double property Numeric_Value.
+        Corresponds to u_getNumericValue. @stable ICU 2.4 */
+    UCHAR_NUMERIC_VALUE=0x3000,
+    /** First constant for double Unicode properties. @stable ICU 2.4 */
+    UCHAR_DOUBLE_START=UCHAR_NUMERIC_VALUE,
+#ifndef U_HIDE_DEPRECATED_API
+    /**
+     * One more than the last constant for double Unicode properties.
+     * @deprecated ICU 58 The numeric value may change over time, see ICU ticket #12420.
+     */
+    UCHAR_DOUBLE_LIMIT=0x3001,
+#endif  // U_HIDE_DEPRECATED_API
+
+    /** String property Age.
+        Corresponds to u_charAge. @stable ICU 2.4 */
+    UCHAR_AGE=0x4000,
+    /** First constant for string Unicode properties. @stable ICU 2.4 */
+    UCHAR_STRING_START=UCHAR_AGE,
+    /** String property Bidi_Mirroring_Glyph.
+        Corresponds to u_charMirror. @stable ICU 2.4 */
+    UCHAR_BIDI_MIRRORING_GLYPH=0x4001,
+    /** String property Case_Folding.
+        Corresponds to u_strFoldCase in ustring.h. @stable ICU 2.4 */
+    UCHAR_CASE_FOLDING=0x4002,
+#ifndef U_HIDE_DEPRECATED_API
+    /** Deprecated string property ISO_Comment.
+        Corresponds to u_getISOComment. @deprecated ICU 49 */
+    UCHAR_ISO_COMMENT=0x4003,
+#endif  /* U_HIDE_DEPRECATED_API */
+    /** String property Lowercase_Mapping.
+        Corresponds to u_strToLower in ustring.h. @stable ICU 2.4 */
+    UCHAR_LOWERCASE_MAPPING=0x4004,
+    /** String property Name.
+        Corresponds to u_charName. @stable ICU 2.4 */
+    UCHAR_NAME=0x4005,
+    /** String property Simple_Case_Folding.
+        Corresponds to u_foldCase. @stable ICU 2.4 */
+    UCHAR_SIMPLE_CASE_FOLDING=0x4006,
+    /** String property Simple_Lowercase_Mapping.
+        Corresponds to u_tolower. @stable ICU 2.4 */
+    UCHAR_SIMPLE_LOWERCASE_MAPPING=0x4007,
+    /** String property Simple_Titlecase_Mapping.
+        Corresponds to u_totitle. @stable ICU 2.4 */
+    UCHAR_SIMPLE_TITLECASE_MAPPING=0x4008,
+    /** String property Simple_Uppercase_Mapping.
+        Corresponds to u_toupper. @stable ICU 2.4 */
+    UCHAR_SIMPLE_UPPERCASE_MAPPING=0x4009,
+    /** String property Titlecase_Mapping.
+        Corresponds to u_strToTitle in ustring.h. @stable ICU 2.4 */
+    UCHAR_TITLECASE_MAPPING=0x400A,
+#ifndef U_HIDE_DEPRECATED_API
+    /** String property Unicode_1_Name.
+        This property is of little practical value.
+        Beginning with ICU 49, ICU APIs return an empty string for this property.
+        Corresponds to u_charName(U_UNICODE_10_CHAR_NAME). @deprecated ICU 49 */
+    UCHAR_UNICODE_1_NAME=0x400B,
+#endif  /* U_HIDE_DEPRECATED_API */
+    /** String property Uppercase_Mapping.
+        Corresponds to u_strToUpper in ustring.h. @stable ICU 2.4 */
+    UCHAR_UPPERCASE_MAPPING=0x400C,
+    /** String property Bidi_Paired_Bracket (new in Unicode 6.3).
+        Corresponds to u_getBidiPairedBracket. @stable ICU 52 */
+    UCHAR_BIDI_PAIRED_BRACKET=0x400D,
+#ifndef U_HIDE_DEPRECATED_API
+    /**
+     * One more than the last constant for string Unicode properties.
+     * @deprecated ICU 58 The numeric value may change over time, see ICU ticket #12420.
+     */
+    UCHAR_STRING_LIMIT=0x400E,
+#endif  // U_HIDE_DEPRECATED_API
+
+    /** Miscellaneous property Script_Extensions (new in Unicode 6.0).
+        Some characters are commonly used in multiple scripts.
+        For more information, see UAX #24: http://www.unicode.org/reports/tr24/.
+        Corresponds to uscript_hasScript and uscript_getScriptExtensions in uscript.h.
+        @stable ICU 4.6 */
+    UCHAR_SCRIPT_EXTENSIONS=0x7000,
+    /** First constant for Unicode properties with unusual value types. @stable ICU 4.6 */
+    UCHAR_OTHER_PROPERTY_START=UCHAR_SCRIPT_EXTENSIONS,
+#ifndef U_HIDE_DEPRECATED_API
+    /**
+     * One more than the last constant for Unicode properties with unusual value types.
+     * @deprecated ICU 58 The numeric value may change over time, see ICU ticket #12420.
+     */
+    UCHAR_OTHER_PROPERTY_LIMIT=0x7001,
+#endif  // U_HIDE_DEPRECATED_API
+
+    /** Represents a nonexistent or invalid property or property value. @stable ICU 2.4 */
+    UCHAR_INVALID_CODE = -1
+} UProperty;
+
+/**
+ * Data for enumerated Unicode general category types.
+ * See http://www.unicode.org/Public/UNIDATA/UnicodeData.html .
+ * @stable ICU 2.0
+ */
+typedef enum UCharCategory
+{
+    /*
+     * Note: UCharCategory constants and their API comments are parsed by preparseucd.py.
+     * It matches pairs of lines like
+     *     / ** <Unicode 2-letter General_Category value> comment... * /
+     *     U_<[A-Z_]+> = <integer>,
+     */
+
+    /** Non-category for unassigned and non-character code points. @stable ICU 2.0 */
+    U_UNASSIGNED              = 0,
+    /** Cn "Other, Not Assigned (no characters in [UnicodeData.txt] have this property)" (same as U_UNASSIGNED!) @stable ICU 2.0 */
+    U_GENERAL_OTHER_TYPES     = 0,
+    /** Lu @stable ICU 2.0 */
+    U_UPPERCASE_LETTER        = 1,
+    /** Ll @stable ICU 2.0 */
+    U_LOWERCASE_LETTER        = 2,
+    /** Lt @stable ICU 2.0 */
+    U_TITLECASE_LETTER        = 3,
+    /** Lm @stable ICU 2.0 */
+    U_MODIFIER_LETTER         = 4,
+    /** Lo @stable ICU 2.0 */
+    U_OTHER_LETTER            = 5,
+    /** Mn @stable ICU 2.0 */
+    U_NON_SPACING_MARK        = 6,
+    /** Me @stable ICU 2.0 */
+    U_ENCLOSING_MARK          = 7,
+    /** Mc @stable ICU 2.0 */
+    U_COMBINING_SPACING_MARK  = 8,
+    /** Nd @stable ICU 2.0 */
+    U_DECIMAL_DIGIT_NUMBER    = 9,
+    /** Nl @stable ICU 2.0 */
+    U_LETTER_NUMBER           = 10,
+    /** No @stable ICU 2.0 */
+    U_OTHER_NUMBER            = 11,
+    /** Zs @stable ICU 2.0 */
+    U_SPACE_SEPARATOR         = 12,
+    /** Zl @stable ICU 2.0 */
+    U_LINE_SEPARATOR          = 13,
+    /** Zp @stable ICU 2.0 */
+    U_PARAGRAPH_SEPARATOR     = 14,
+    /** Cc @stable ICU 2.0 */
+    U_CONTROL_CHAR            = 15,
+    /** Cf @stable ICU 2.0 */
+    U_FORMAT_CHAR             = 16,
+    /** Co @stable ICU 2.0 */
+    U_PRIVATE_USE_CHAR        = 17,
+    /** Cs @stable ICU 2.0 */
+    U_SURROGATE               = 18,
+    /** Pd @stable ICU 2.0 */
+    U_DASH_PUNCTUATION        = 19,
+    /** Ps @stable ICU 2.0 */
+    U_START_PUNCTUATION       = 20,
+    /** Pe @stable ICU 2.0 */
+    U_END_PUNCTUATION         = 21,
+    /** Pc @stable ICU 2.0 */
+    U_CONNECTOR_PUNCTUATION   = 22,
+    /** Po @stable ICU 2.0 */
+    U_OTHER_PUNCTUATION       = 23,
+    /** Sm @stable ICU 2.0 */
+    U_MATH_SYMBOL             = 24,
+    /** Sc @stable ICU 2.0 */
+    U_CURRENCY_SYMBOL         = 25,
+    /** Sk @stable ICU 2.0 */
+    U_MODIFIER_SYMBOL         = 26,
+    /** So @stable ICU 2.0 */
+    U_OTHER_SYMBOL            = 27,
+    /** Pi @stable ICU 2.0 */
+    U_INITIAL_PUNCTUATION     = 28,
+    /** Pf @stable ICU 2.0 */
+    U_FINAL_PUNCTUATION       = 29,
+    /**
+     * One higher than the last enum UCharCategory constant.
+     * This numeric value is stable (will not change), see
+     * http://www.unicode.org/policies/stability_policy.html#Property_Value
+     *
+     * @stable ICU 2.0
+     */
+    U_CHAR_CATEGORY_COUNT
+} UCharCategory;
+
+/**
+ * U_GC_XX_MASK constants are bit flags corresponding to Unicode
+ * general category values.
+ * For each category, the nth bit is set if the numeric value of the
+ * corresponding UCharCategory constant is n.
+ *
+ * There are also some U_GC_Y_MASK constants for groups of general categories
+ * like L for all letter categories.
+ *
+ * @see u_charType
+ * @see U_GET_GC_MASK
+ * @see UCharCategory
+ * @stable ICU 2.1
+ */
+#define U_GC_CN_MASK    U_MASK(U_GENERAL_OTHER_TYPES)
+
+/** Mask constant for a UCharCategory. @stable ICU 2.1 */
+#define U_GC_LU_MASK    U_MASK(U_UPPERCASE_LETTER)
+/** Mask constant for a UCharCategory. @stable ICU 2.1 */
+#define U_GC_LL_MASK    U_MASK(U_LOWERCASE_LETTER)
+/** Mask constant for a UCharCategory. @stable ICU 2.1 */
+#define U_GC_LT_MASK    U_MASK(U_TITLECASE_LETTER)
+/** Mask constant for a UCharCategory. @stable ICU 2.1 */
+#define U_GC_LM_MASK    U_MASK(U_MODIFIER_LETTER)
+/** Mask constant for a UCharCategory. @stable ICU 2.1 */
+#define U_GC_LO_MASK    U_MASK(U_OTHER_LETTER)
+
+/** Mask constant for a UCharCategory. @stable ICU 2.1 */
+#define U_GC_MN_MASK    U_MASK(U_NON_SPACING_MARK)
+/** Mask constant for a UCharCategory. @stable ICU 2.1 */
+#define U_GC_ME_MASK    U_MASK(U_ENCLOSING_MARK)
+/** Mask constant for a UCharCategory. @stable ICU 2.1 */
+#define U_GC_MC_MASK    U_MASK(U_COMBINING_SPACING_MARK)
+
+/** Mask constant for a UCharCategory. @stable ICU 2.1 */
+#define U_GC_ND_MASK    U_MASK(U_DECIMAL_DIGIT_NUMBER)
+/** Mask constant for a UCharCategory. @stable ICU 2.1 */
+#define U_GC_NL_MASK    U_MASK(U_LETTER_NUMBER)
+/** Mask constant for a UCharCategory. @stable ICU 2.1 */
+#define U_GC_NO_MASK    U_MASK(U_OTHER_NUMBER)
+
+/** Mask constant for a UCharCategory. @stable ICU 2.1 */
+#define U_GC_ZS_MASK    U_MASK(U_SPACE_SEPARATOR)
+/** Mask constant for a UCharCategory. @stable ICU 2.1 */
+#define U_GC_ZL_MASK    U_MASK(U_LINE_SEPARATOR)
+/** Mask constant for a UCharCategory. @stable ICU 2.1 */
+#define U_GC_ZP_MASK    U_MASK(U_PARAGRAPH_SEPARATOR)
+
+/** Mask constant for a UCharCategory. @stable ICU 2.1 */
+#define U_GC_CC_MASK    U_MASK(U_CONTROL_CHAR)
+/** Mask constant for a UCharCategory. @stable ICU 2.1 */
+#define U_GC_CF_MASK    U_MASK(U_FORMAT_CHAR)
+/** Mask constant for a UCharCategory. @stable ICU 2.1 */
+#define U_GC_CO_MASK    U_MASK(U_PRIVATE_USE_CHAR)
+/** Mask constant for a UCharCategory. @stable ICU 2.1 */
+#define U_GC_CS_MASK    U_MASK(U_SURROGATE)
+
+/** Mask constant for a UCharCategory. @stable ICU 2.1 */
+#define U_GC_PD_MASK    U_MASK(U_DASH_PUNCTUATION)
+/** Mask constant for a UCharCategory. @stable ICU 2.1 */
+#define U_GC_PS_MASK    U_MASK(U_START_PUNCTUATION)
+/** Mask constant for a UCharCategory. @stable ICU 2.1 */
+#define U_GC_PE_MASK    U_MASK(U_END_PUNCTUATION)
+/** Mask constant for a UCharCategory. @stable ICU 2.1 */
+#define U_GC_PC_MASK    U_MASK(U_CONNECTOR_PUNCTUATION)
+/** Mask constant for a UCharCategory. @stable ICU 2.1 */
+#define U_GC_PO_MASK    U_MASK(U_OTHER_PUNCTUATION)
+
+/** Mask constant for a UCharCategory. @stable ICU 2.1 */
+#define U_GC_SM_MASK    U_MASK(U_MATH_SYMBOL)
+/** Mask constant for a UCharCategory. @stable ICU 2.1 */
+#define U_GC_SC_MASK    U_MASK(U_CURRENCY_SYMBOL)
+/** Mask constant for a UCharCategory. @stable ICU 2.1 */
+#define U_GC_SK_MASK    U_MASK(U_MODIFIER_SYMBOL)
+/** Mask constant for a UCharCategory. @stable ICU 2.1 */
+#define U_GC_SO_MASK    U_MASK(U_OTHER_SYMBOL)
+
+/** Mask constant for a UCharCategory. @stable ICU 2.1 */
+#define U_GC_PI_MASK    U_MASK(U_INITIAL_PUNCTUATION)
+/** Mask constant for a UCharCategory. @stable ICU 2.1 */
+#define U_GC_PF_MASK    U_MASK(U_FINAL_PUNCTUATION)
+
+
+/** Mask constant for multiple UCharCategory bits (L Letters). @stable ICU 2.1 */
+#define U_GC_L_MASK \
+            (U_GC_LU_MASK|U_GC_LL_MASK|U_GC_LT_MASK|U_GC_LM_MASK|U_GC_LO_MASK)
+
+/** Mask constant for multiple UCharCategory bits (LC Cased Letters). @stable ICU 2.1 */
+#define U_GC_LC_MASK \
+            (U_GC_LU_MASK|U_GC_LL_MASK|U_GC_LT_MASK)
+
+/** Mask constant for multiple UCharCategory bits (M Marks). @stable ICU 2.1 */
+#define U_GC_M_MASK (U_GC_MN_MASK|U_GC_ME_MASK|U_GC_MC_MASK)
+
+/** Mask constant for multiple UCharCategory bits (N Numbers). @stable ICU 2.1 */
+#define U_GC_N_MASK (U_GC_ND_MASK|U_GC_NL_MASK|U_GC_NO_MASK)
+
+/** Mask constant for multiple UCharCategory bits (Z Separators). @stable ICU 2.1 */
+#define U_GC_Z_MASK (U_GC_ZS_MASK|U_GC_ZL_MASK|U_GC_ZP_MASK)
+
+/** Mask constant for multiple UCharCategory bits (C Others). @stable ICU 2.1 */
+#define U_GC_C_MASK \
+            (U_GC_CN_MASK|U_GC_CC_MASK|U_GC_CF_MASK|U_GC_CO_MASK|U_GC_CS_MASK)
+
+/** Mask constant for multiple UCharCategory bits (P Punctuation). @stable ICU 2.1 */
+#define U_GC_P_MASK \
+            (U_GC_PD_MASK|U_GC_PS_MASK|U_GC_PE_MASK|U_GC_PC_MASK|U_GC_PO_MASK| \
+             U_GC_PI_MASK|U_GC_PF_MASK)
+
+/** Mask constant for multiple UCharCategory bits (S Symbols). @stable ICU 2.1 */
+#define U_GC_S_MASK (U_GC_SM_MASK|U_GC_SC_MASK|U_GC_SK_MASK|U_GC_SO_MASK)
+
+/**
+ * This specifies the language directional property of a character set.
+ * @stable ICU 2.0
+ */
+typedef enum UCharDirection {
+    /*
+     * Note: UCharDirection constants and their API comments are parsed by preparseucd.py.
+     * It matches pairs of lines like
+     *     / ** <Unicode 1..3-letter Bidi_Class value> comment... * /
+     *     U_<[A-Z_]+> = <integer>,
+     */
+
+    /** L @stable ICU 2.0 */
+    U_LEFT_TO_RIGHT               = 0,
+    /** R @stable ICU 2.0 */
+    U_RIGHT_TO_LEFT               = 1,
+    /** EN @stable ICU 2.0 */
+    U_EUROPEAN_NUMBER             = 2,
+    /** ES @stable ICU 2.0 */
+    U_EUROPEAN_NUMBER_SEPARATOR   = 3,
+    /** ET @stable ICU 2.0 */
+    U_EUROPEAN_NUMBER_TERMINATOR  = 4,
+    /** AN @stable ICU 2.0 */
+    U_ARABIC_NUMBER               = 5,
+    /** CS @stable ICU 2.0 */
+    U_COMMON_NUMBER_SEPARATOR     = 6,
+    /** B @stable ICU 2.0 */
+    U_BLOCK_SEPARATOR             = 7,
+    /** S @stable ICU 2.0 */
+    U_SEGMENT_SEPARATOR           = 8,
+    /** WS @stable ICU 2.0 */
+    U_WHITE_SPACE_NEUTRAL         = 9,
+    /** ON @stable ICU 2.0 */
+    U_OTHER_NEUTRAL               = 10,
+    /** LRE @stable ICU 2.0 */
+    U_LEFT_TO_RIGHT_EMBEDDING     = 11,
+    /** LRO @stable ICU 2.0 */
+    U_LEFT_TO_RIGHT_OVERRIDE      = 12,
+    /** AL @stable ICU 2.0 */
+    U_RIGHT_TO_LEFT_ARABIC        = 13,
+    /** RLE @stable ICU 2.0 */
+    U_RIGHT_TO_LEFT_EMBEDDING     = 14,
+    /** RLO @stable ICU 2.0 */
+    U_RIGHT_TO_LEFT_OVERRIDE      = 15,
+    /** PDF @stable ICU 2.0 */
+    U_POP_DIRECTIONAL_FORMAT      = 16,
+    /** NSM @stable ICU 2.0 */
+    U_DIR_NON_SPACING_MARK        = 17,
+    /** BN @stable ICU 2.0 */
+    U_BOUNDARY_NEUTRAL            = 18,
+    /** FSI @stable ICU 52 */
+    U_FIRST_STRONG_ISOLATE        = 19,
+    /** LRI @stable ICU 52 */
+    U_LEFT_TO_RIGHT_ISOLATE       = 20,
+    /** RLI @stable ICU 52 */
+    U_RIGHT_TO_LEFT_ISOLATE       = 21,
+    /** PDI @stable ICU 52 */
+    U_POP_DIRECTIONAL_ISOLATE     = 22,
+#ifndef U_HIDE_DEPRECATED_API
+    /**
+     * One more than the highest UCharDirection value.
+     * The highest value is available via u_getIntPropertyMaxValue(UCHAR_BIDI_CLASS).
+     *
+     * @deprecated ICU 58 The numeric value may change over time, see ICU ticket #12420.
+     */
+    U_CHAR_DIRECTION_COUNT
+#endif  // U_HIDE_DEPRECATED_API
+} UCharDirection;
+
+/**
+ * Bidi Paired Bracket Type constants.
+ *
+ * @see UCHAR_BIDI_PAIRED_BRACKET_TYPE
+ * @stable ICU 52
+ */
+typedef enum UBidiPairedBracketType {
+    /*
+     * Note: UBidiPairedBracketType constants are parsed by preparseucd.py.
+     * It matches lines like
+     *     U_BPT_<Unicode Bidi_Paired_Bracket_Type value name>
+     */
+
+    /** Not a paired bracket. @stable ICU 52 */
+    U_BPT_NONE,
+    /** Open paired bracket. @stable ICU 52 */
+    U_BPT_OPEN,
+    /** Close paired bracket. @stable ICU 52 */
+    U_BPT_CLOSE,
+#ifndef U_HIDE_DEPRECATED_API
+    /**
+     * One more than the highest normal UBidiPairedBracketType value.
+     * The highest value is available via u_getIntPropertyMaxValue(UCHAR_BIDI_PAIRED_BRACKET_TYPE).
+     *
+     * @deprecated ICU 58 The numeric value may change over time, see ICU ticket #12420.
+     */
+    U_BPT_COUNT /* 3 */
+#endif  // U_HIDE_DEPRECATED_API
+} UBidiPairedBracketType;
+
+/**
+ * Constants for Unicode blocks, see the Unicode Data file Blocks.txt
+ * @stable ICU 2.0
+ */
+enum UBlockCode {
+    /*
+     * Note: UBlockCode constants are parsed by preparseucd.py.
+     * It matches lines like
+     *     UBLOCK_<Unicode Block value name> = <integer>,
+     */
+
+    /** New No_Block value in Unicode 4. @stable ICU 2.6 */
+    UBLOCK_NO_BLOCK = 0, /*[none]*/ /* Special range indicating No_Block */
+
+    /** @stable ICU 2.0 */
+    UBLOCK_BASIC_LATIN = 1, /*[0000]*/
+
+    /** @stable ICU 2.0 */
+    UBLOCK_LATIN_1_SUPPLEMENT=2, /*[0080]*/
+
+    /** @stable ICU 2.0 */
+    UBLOCK_LATIN_EXTENDED_A =3, /*[0100]*/
+
+    /** @stable ICU 2.0 */
+    UBLOCK_LATIN_EXTENDED_B =4, /*[0180]*/
+
+    /** @stable ICU 2.0 */
+    UBLOCK_IPA_EXTENSIONS =5, /*[0250]*/
+
+    /** @stable ICU 2.0 */
+    UBLOCK_SPACING_MODIFIER_LETTERS =6, /*[02B0]*/
+
+    /** @stable ICU 2.0 */
+    UBLOCK_COMBINING_DIACRITICAL_MARKS =7, /*[0300]*/
+
+    /**
+     * Unicode 3.2 renames this block to "Greek and Coptic".
+     * @stable ICU 2.0
+     */
+    UBLOCK_GREEK =8, /*[0370]*/
+
+    /** @stable ICU 2.0 */
+    UBLOCK_CYRILLIC =9, /*[0400]*/
+
+    /** @stable ICU 2.0 */
+    UBLOCK_ARMENIAN =10, /*[0530]*/
+
+    /** @stable ICU 2.0 */
+    UBLOCK_HEBREW =11, /*[0590]*/
+
+    /** @stable ICU 2.0 */
+    UBLOCK_ARABIC =12, /*[0600]*/
+
+    /** @stable ICU 2.0 */
+    UBLOCK_SYRIAC =13, /*[0700]*/
+
+    /** @stable ICU 2.0 */
+    UBLOCK_THAANA =14, /*[0780]*/
+
+    /** @stable ICU 2.0 */
+    UBLOCK_DEVANAGARI =15, /*[0900]*/
+
+    /** @stable ICU 2.0 */
+    UBLOCK_BENGALI =16, /*[0980]*/
+
+    /** @stable ICU 2.0 */
+    UBLOCK_GURMUKHI =17, /*[0A00]*/
+
+    /** @stable ICU 2.0 */
+    UBLOCK_GUJARATI =18, /*[0A80]*/
+
+    /** @stable ICU 2.0 */
+    UBLOCK_ORIYA =19, /*[0B00]*/
+
+    /** @stable ICU 2.0 */
+    UBLOCK_TAMIL =20, /*[0B80]*/
+
+    /** @stable ICU 2.0 */
+    UBLOCK_TELUGU =21, /*[0C00]*/
+
+    /** @stable ICU 2.0 */
+    UBLOCK_KANNADA =22, /*[0C80]*/
+
+    /** @stable ICU 2.0 */
+    UBLOCK_MALAYALAM =23, /*[0D00]*/
+
+    /** @stable ICU 2.0 */
+    UBLOCK_SINHALA =24, /*[0D80]*/
+
+    /** @stable ICU 2.0 */
+    UBLOCK_THAI =25, /*[0E00]*/
+
+    /** @stable ICU 2.0 */
+    UBLOCK_LAO =26, /*[0E80]*/
+
+    /** @stable ICU 2.0 */
+    UBLOCK_TIBETAN =27, /*[0F00]*/
+
+    /** @stable ICU 2.0 */
+    UBLOCK_MYANMAR =28, /*[1000]*/
+
+    /** @stable ICU 2.0 */
+    UBLOCK_GEORGIAN =29, /*[10A0]*/
+
+    /** @stable ICU 2.0 */
+    UBLOCK_HANGUL_JAMO =30, /*[1100]*/
+
+    /** @stable ICU 2.0 */
+    UBLOCK_ETHIOPIC =31, /*[1200]*/
+
+    /** @stable ICU 2.0 */
+    UBLOCK_CHEROKEE =32, /*[13A0]*/
+
+    /** @stable ICU 2.0 */
+    UBLOCK_UNIFIED_CANADIAN_ABORIGINAL_SYLLABICS =33, /*[1400]*/
+
+    /** @stable ICU 2.0 */
+    UBLOCK_OGHAM =34, /*[1680]*/
+
+    /** @stable ICU 2.0 */
+    UBLOCK_RUNIC =35, /*[16A0]*/
+
+    /** @stable ICU 2.0 */
+    UBLOCK_KHMER =36, /*[1780]*/
+
+    /** @stable ICU 2.0 */
+    UBLOCK_MONGOLIAN =37, /*[1800]*/
+
+    /** @stable ICU 2.0 */
+    UBLOCK_LATIN_EXTENDED_ADDITIONAL =38, /*[1E00]*/
+
+    /** @stable ICU 2.0 */
+    UBLOCK_GREEK_EXTENDED =39, /*[1F00]*/
+
+    /** @stable ICU 2.0 */
+    UBLOCK_GENERAL_PUNCTUATION =40, /*[2000]*/
+
+    /** @stable ICU 2.0 */
+    UBLOCK_SUPERSCRIPTS_AND_SUBSCRIPTS =41, /*[2070]*/
+
+    /** @stable ICU 2.0 */
+    UBLOCK_CURRENCY_SYMBOLS =42, /*[20A0]*/
+
+    /**
+     * Unicode 3.2 renames this block to "Combining Diacritical Marks for Symbols".
+     * @stable ICU 2.0
+     */
+    UBLOCK_COMBINING_MARKS_FOR_SYMBOLS =43, /*[20D0]*/
+
+    /** @stable ICU 2.0 */
+    UBLOCK_LETTERLIKE_SYMBOLS =44, /*[2100]*/
+
+    /** @stable ICU 2.0 */
+    UBLOCK_NUMBER_FORMS =45, /*[2150]*/
+
+    /** @stable ICU 2.0 */
+    UBLOCK_ARROWS =46, /*[2190]*/
+
+    /** @stable ICU 2.0 */
+    UBLOCK_MATHEMATICAL_OPERATORS =47, /*[2200]*/
+
+    /** @stable ICU 2.0 */
+    UBLOCK_MISCELLANEOUS_TECHNICAL =48, /*[2300]*/
+
+    /** @stable ICU 2.0 */
+    UBLOCK_CONTROL_PICTURES =49, /*[2400]*/
+
+    /** @stable ICU 2.0 */
+    UBLOCK_OPTICAL_CHARACTER_RECOGNITION =50, /*[2440]*/
+
+    /** @stable ICU 2.0 */
+    UBLOCK_ENCLOSED_ALPHANUMERICS =51, /*[2460]*/
+
+    /** @stable ICU 2.0 */
+    UBLOCK_BOX_DRAWING =52, /*[2500]*/
+
+    /** @stable ICU 2.0 */
+    UBLOCK_BLOCK_ELEMENTS =53, /*[2580]*/
+
+    /** @stable ICU 2.0 */
+    UBLOCK_GEOMETRIC_SHAPES =54, /*[25A0]*/
+
+    /** @stable ICU 2.0 */
+    UBLOCK_MISCELLANEOUS_SYMBOLS =55, /*[2600]*/
+
+    /** @stable ICU 2.0 */
+    UBLOCK_DINGBATS =56, /*[2700]*/
+
+    /** @stable ICU 2.0 */
+    UBLOCK_BRAILLE_PATTERNS =57, /*[2800]*/
+
+    /** @stable ICU 2.0 */
+    UBLOCK_CJK_RADICALS_SUPPLEMENT =58, /*[2E80]*/
+
+    /** @stable ICU 2.0 */
+    UBLOCK_KANGXI_RADICALS =59, /*[2F00]*/
+
+    /** @stable ICU 2.0 */
+    UBLOCK_IDEOGRAPHIC_DESCRIPTION_CHARACTERS =60, /*[2FF0]*/
+
+    /** @stable ICU 2.0 */
+    UBLOCK_CJK_SYMBOLS_AND_PUNCTUATION =61, /*[3000]*/
+
+    /** @stable ICU 2.0 */
+    UBLOCK_HIRAGANA =62, /*[3040]*/
+
+    /** @stable ICU 2.0 */
+    UBLOCK_KATAKANA =63, /*[30A0]*/
+
+    /** @stable ICU 2.0 */
+    UBLOCK_BOPOMOFO =64, /*[3100]*/
+
+    /** @stable ICU 2.0 */
+    UBLOCK_HANGUL_COMPATIBILITY_JAMO =65, /*[3130]*/
+
+    /** @stable ICU 2.0 */
+    UBLOCK_KANBUN =66, /*[3190]*/
+
+    /** @stable ICU 2.0 */
+    UBLOCK_BOPOMOFO_EXTENDED =67, /*[31A0]*/
+
+    /** @stable ICU 2.0 */
+    UBLOCK_ENCLOSED_CJK_LETTERS_AND_MONTHS =68, /*[3200]*/
+
+    /** @stable ICU 2.0 */
+    UBLOCK_CJK_COMPATIBILITY =69, /*[3300]*/
+
+    /** @stable ICU 2.0 */
+    UBLOCK_CJK_UNIFIED_IDEOGRAPHS_EXTENSION_A =70, /*[3400]*/
+
+    /** @stable ICU 2.0 */
+    UBLOCK_CJK_UNIFIED_IDEOGRAPHS =71, /*[4E00]*/
+
+    /** @stable ICU 2.0 */
+    UBLOCK_YI_SYLLABLES =72, /*[A000]*/
+
+    /** @stable ICU 2.0 */
+    UBLOCK_YI_RADICALS =73, /*[A490]*/
+
+    /** @stable ICU 2.0 */
+    UBLOCK_HANGUL_SYLLABLES =74, /*[AC00]*/
+
+    /** @stable ICU 2.0 */
+    UBLOCK_HIGH_SURROGATES =75, /*[D800]*/
+
+    /** @stable ICU 2.0 */
+    UBLOCK_HIGH_PRIVATE_USE_SURROGATES =76, /*[DB80]*/
+
+    /** @stable ICU 2.0 */
+    UBLOCK_LOW_SURROGATES =77, /*[DC00]*/
+
+    /**
+     * Same as UBLOCK_PRIVATE_USE.
+     * Until Unicode 3.1.1, the corresponding block name was "Private Use",
+     * and multiple code point ranges had this block.
+     * Unicode 3.2 renames the block for the BMP PUA to "Private Use Area" and
+     * adds separate blocks for the supplementary PUAs.
+     *
+     * @stable ICU 2.0
+     */
+    UBLOCK_PRIVATE_USE_AREA =78, /*[E000]*/
+    /**
+     * Same as UBLOCK_PRIVATE_USE_AREA.
+     * Until Unicode 3.1.1, the corresponding block name was "Private Use",
+     * and multiple code point ranges had this block.
+     * Unicode 3.2 renames the block for the BMP PUA to "Private Use Area" and
+     * adds separate blocks for the supplementary PUAs.
+     *
+     * @stable ICU 2.0
+     */
+    UBLOCK_PRIVATE_USE = UBLOCK_PRIVATE_USE_AREA,
+
+    /** @stable ICU 2.0 */
+    UBLOCK_CJK_COMPATIBILITY_IDEOGRAPHS =79, /*[F900]*/
+
+    /** @stable ICU 2.0 */
+    UBLOCK_ALPHABETIC_PRESENTATION_FORMS =80, /*[FB00]*/
+
+    /** @stable ICU 2.0 */
+    UBLOCK_ARABIC_PRESENTATION_FORMS_A =81, /*[FB50]*/
+
+    /** @stable ICU 2.0 */
+    UBLOCK_COMBINING_HALF_MARKS =82, /*[FE20]*/
+
+    /** @stable ICU 2.0 */
+    UBLOCK_CJK_COMPATIBILITY_FORMS =83, /*[FE30]*/
+
+    /** @stable ICU 2.0 */
+    UBLOCK_SMALL_FORM_VARIANTS =84, /*[FE50]*/
+
+    /** @stable ICU 2.0 */
+    UBLOCK_ARABIC_PRESENTATION_FORMS_B =85, /*[FE70]*/
+
+    /** @stable ICU 2.0 */
+    UBLOCK_SPECIALS =86, /*[FFF0]*/
+
+    /** @stable ICU 2.0 */
+    UBLOCK_HALFWIDTH_AND_FULLWIDTH_FORMS =87, /*[FF00]*/
+
+    /* New blocks in Unicode 3.1 */
+
+    /** @stable ICU 2.0 */
+    UBLOCK_OLD_ITALIC = 88, /*[10300]*/
+    /** @stable ICU 2.0 */
+    UBLOCK_GOTHIC = 89, /*[10330]*/
+    /** @stable ICU 2.0 */
+    UBLOCK_DESERET = 90, /*[10400]*/
+    /** @stable ICU 2.0 */
+    UBLOCK_BYZANTINE_MUSICAL_SYMBOLS = 91, /*[1D000]*/
+    /** @stable ICU 2.0 */
+    UBLOCK_MUSICAL_SYMBOLS = 92, /*[1D100]*/
+    /** @stable ICU 2.0 */
+    UBLOCK_MATHEMATICAL_ALPHANUMERIC_SYMBOLS = 93, /*[1D400]*/
+    /** @stable ICU 2.0 */
+    UBLOCK_CJK_UNIFIED_IDEOGRAPHS_EXTENSION_B  = 94, /*[20000]*/
+    /** @stable ICU 2.0 */
+    UBLOCK_CJK_COMPATIBILITY_IDEOGRAPHS_SUPPLEMENT = 95, /*[2F800]*/
+    /** @stable ICU 2.0 */
+    UBLOCK_TAGS = 96, /*[E0000]*/
+
+    /* New blocks in Unicode 3.2 */
+
+    /** @stable ICU 3.0  */
+    UBLOCK_CYRILLIC_SUPPLEMENT = 97, /*[0500]*/
+    /**
+     * Unicode 4.0.1 renames the "Cyrillic Supplementary" block to "Cyrillic Supplement".
+     * @stable ICU 2.2
+     */
+    UBLOCK_CYRILLIC_SUPPLEMENTARY = UBLOCK_CYRILLIC_SUPPLEMENT,
+    /** @stable ICU 2.2 */
+    UBLOCK_TAGALOG = 98, /*[1700]*/
+    /** @stable ICU 2.2 */
+    UBLOCK_HANUNOO = 99, /*[1720]*/
+    /** @stable ICU 2.2 */
+    UBLOCK_BUHID = 100, /*[1740]*/
+    /** @stable ICU 2.2 */
+    UBLOCK_TAGBANWA = 101, /*[1760]*/
+    /** @stable ICU 2.2 */
+    UBLOCK_MISCELLANEOUS_MATHEMATICAL_SYMBOLS_A = 102, /*[27C0]*/
+    /** @stable ICU 2.2 */
+    UBLOCK_SUPPLEMENTAL_ARROWS_A = 103, /*[27F0]*/
+    /** @stable ICU 2.2 */
+    UBLOCK_SUPPLEMENTAL_ARROWS_B = 104, /*[2900]*/
+    /** @stable ICU 2.2 */
+    UBLOCK_MISCELLANEOUS_MATHEMATICAL_SYMBOLS_B = 105, /*[2980]*/
+    /** @stable ICU 2.2 */
+    UBLOCK_SUPPLEMENTAL_MATHEMATICAL_OPERATORS = 106, /*[2A00]*/
+    /** @stable ICU 2.2 */
+    UBLOCK_KATAKANA_PHONETIC_EXTENSIONS = 107, /*[31F0]*/
+    /** @stable ICU 2.2 */
+    UBLOCK_VARIATION_SELECTORS = 108, /*[FE00]*/
+    /** @stable ICU 2.2 */
+    UBLOCK_SUPPLEMENTARY_PRIVATE_USE_AREA_A = 109, /*[F0000]*/
+    /** @stable ICU 2.2 */
+    UBLOCK_SUPPLEMENTARY_PRIVATE_USE_AREA_B = 110, /*[100000]*/
+
+    /* New blocks in Unicode 4 */
+
+    /** @stable ICU 2.6 */
+    UBLOCK_LIMBU = 111, /*[1900]*/
+    /** @stable ICU 2.6 */
+    UBLOCK_TAI_LE = 112, /*[1950]*/
+    /** @stable ICU 2.6 */
+    UBLOCK_KHMER_SYMBOLS = 113, /*[19E0]*/
+    /** @stable ICU 2.6 */
+    UBLOCK_PHONETIC_EXTENSIONS = 114, /*[1D00]*/
+    /** @stable ICU 2.6 */
+    UBLOCK_MISCELLANEOUS_SYMBOLS_AND_ARROWS = 115, /*[2B00]*/
+    /** @stable ICU 2.6 */
+    UBLOCK_YIJING_HEXAGRAM_SYMBOLS = 116, /*[4DC0]*/
+    /** @stable ICU 2.6 */
+    UBLOCK_LINEAR_B_SYLLABARY = 117, /*[10000]*/
+    /** @stable ICU 2.6 */
+    UBLOCK_LINEAR_B_IDEOGRAMS = 118, /*[10080]*/
+    /** @stable ICU 2.6 */
+    UBLOCK_AEGEAN_NUMBERS = 119, /*[10100]*/
+    /** @stable ICU 2.6 */
+    UBLOCK_UGARITIC = 120, /*[10380]*/
+    /** @stable ICU 2.6 */
+    UBLOCK_SHAVIAN = 121, /*[10450]*/
+    /** @stable ICU 2.6 */
+    UBLOCK_OSMANYA = 122, /*[10480]*/
+    /** @stable ICU 2.6 */
+    UBLOCK_CYPRIOT_SYLLABARY = 123, /*[10800]*/
+    /** @stable ICU 2.6 */
+    UBLOCK_TAI_XUAN_JING_SYMBOLS = 124, /*[1D300]*/
+    /** @stable ICU 2.6 */
+    UBLOCK_VARIATION_SELECTORS_SUPPLEMENT = 125, /*[E0100]*/
+
+    /* New blocks in Unicode 4.1 */
+
+    /** @stable ICU 3.4 */
+    UBLOCK_ANCIENT_GREEK_MUSICAL_NOTATION = 126, /*[1D200]*/
+    /** @stable ICU 3.4 */
+    UBLOCK_ANCIENT_GREEK_NUMBERS = 127, /*[10140]*/
+    /** @stable ICU 3.4 */
+    UBLOCK_ARABIC_SUPPLEMENT = 128, /*[0750]*/
+    /** @stable ICU 3.4 */
+    UBLOCK_BUGINESE = 129, /*[1A00]*/
+    /** @stable ICU 3.4 */
+    UBLOCK_CJK_STROKES = 130, /*[31C0]*/
+    /** @stable ICU 3.4 */
+    UBLOCK_COMBINING_DIACRITICAL_MARKS_SUPPLEMENT = 131, /*[1DC0]*/
+    /** @stable ICU 3.4 */
+    UBLOCK_COPTIC = 132, /*[2C80]*/
+    /** @stable ICU 3.4 */
+    UBLOCK_ETHIOPIC_EXTENDED = 133, /*[2D80]*/
+    /** @stable ICU 3.4 */
+    UBLOCK_ETHIOPIC_SUPPLEMENT = 134, /*[1380]*/
+    /** @stable ICU 3.4 */
+    UBLOCK_GEORGIAN_SUPPLEMENT = 135, /*[2D00]*/
+    /** @stable ICU 3.4 */
+    UBLOCK_GLAGOLITIC = 136, /*[2C00]*/
+    /** @stable ICU 3.4 */
+    UBLOCK_KHAROSHTHI = 137, /*[10A00]*/
+    /** @stable ICU 3.4 */
+    UBLOCK_MODIFIER_TONE_LETTERS = 138, /*[A700]*/
+    /** @stable ICU 3.4 */
+    UBLOCK_NEW_TAI_LUE = 139, /*[1980]*/
+    /** @stable ICU 3.4 */
+    UBLOCK_OLD_PERSIAN = 140, /*[103A0]*/
+    /** @stable ICU 3.4 */
+    UBLOCK_PHONETIC_EXTENSIONS_SUPPLEMENT = 141, /*[1D80]*/
+    /** @stable ICU 3.4 */
+    UBLOCK_SUPPLEMENTAL_PUNCTUATION = 142, /*[2E00]*/
+    /** @stable ICU 3.4 */
+    UBLOCK_SYLOTI_NAGRI = 143, /*[A800]*/
+    /** @stable ICU 3.4 */
+    UBLOCK_TIFINAGH = 144, /*[2D30]*/
+    /** @stable ICU 3.4 */
+    UBLOCK_VERTICAL_FORMS = 145, /*[FE10]*/
+
+    /* New blocks in Unicode 5.0 */
+
+    /** @stable ICU 3.6 */
+    UBLOCK_NKO = 146, /*[07C0]*/
+    /** @stable ICU 3.6 */
+    UBLOCK_BALINESE = 147, /*[1B00]*/
+    /** @stable ICU 3.6 */
+    UBLOCK_LATIN_EXTENDED_C = 148, /*[2C60]*/
+    /** @stable ICU 3.6 */
+    UBLOCK_LATIN_EXTENDED_D = 149, /*[A720]*/
+    /** @stable ICU 3.6 */
+    UBLOCK_PHAGS_PA = 150, /*[A840]*/
+    /** @stable ICU 3.6 */
+    UBLOCK_PHOENICIAN = 151, /*[10900]*/
+    /** @stable ICU 3.6 */
+    UBLOCK_CUNEIFORM = 152, /*[12000]*/
+    /** @stable ICU 3.6 */
+    UBLOCK_CUNEIFORM_NUMBERS_AND_PUNCTUATION = 153, /*[12400]*/
+    /** @stable ICU 3.6 */
+    UBLOCK_COUNTING_ROD_NUMERALS = 154, /*[1D360]*/
+
+    /* New blocks in Unicode 5.1 */
+
+    /** @stable ICU 4.0 */
+    UBLOCK_SUNDANESE = 155, /*[1B80]*/
+    /** @stable ICU 4.0 */
+    UBLOCK_LEPCHA = 156, /*[1C00]*/
+    /** @stable ICU 4.0 */
+    UBLOCK_OL_CHIKI = 157, /*[1C50]*/
+    /** @stable ICU 4.0 */
+    UBLOCK_CYRILLIC_EXTENDED_A = 158, /*[2DE0]*/
+    /** @stable ICU 4.0 */
+    UBLOCK_VAI = 159, /*[A500]*/
+    /** @stable ICU 4.0 */
+    UBLOCK_CYRILLIC_EXTENDED_B = 160, /*[A640]*/
+    /** @stable ICU 4.0 */
+    UBLOCK_SAURASHTRA = 161, /*[A880]*/
+    /** @stable ICU 4.0 */
+    UBLOCK_KAYAH_LI = 162, /*[A900]*/
+    /** @stable ICU 4.0 */
+    UBLOCK_REJANG = 163, /*[A930]*/
+    /** @stable ICU 4.0 */
+    UBLOCK_CHAM = 164, /*[AA00]*/
+    /** @stable ICU 4.0 */
+    UBLOCK_ANCIENT_SYMBOLS = 165, /*[10190]*/
+    /** @stable ICU 4.0 */
+    UBLOCK_PHAISTOS_DISC = 166, /*[101D0]*/
+    /** @stable ICU 4.0 */
+    UBLOCK_LYCIAN = 167, /*[10280]*/
+    /** @stable ICU 4.0 */
+    UBLOCK_CARIAN = 168, /*[102A0]*/
+    /** @stable ICU 4.0 */
+    UBLOCK_LYDIAN = 169, /*[10920]*/
+    /** @stable ICU 4.0 */
+    UBLOCK_MAHJONG_TILES = 170, /*[1F000]*/
+    /** @stable ICU 4.0 */
+    UBLOCK_DOMINO_TILES = 171, /*[1F030]*/
+
+    /* New blocks in Unicode 5.2 */
+
+    /** @stable ICU 4.4 */
+    UBLOCK_SAMARITAN = 172, /*[0800]*/
+    /** @stable ICU 4.4 */
+    UBLOCK_UNIFIED_CANADIAN_ABORIGINAL_SYLLABICS_EXTENDED = 173, /*[18B0]*/
+    /** @stable ICU 4.4 */
+    UBLOCK_TAI_THAM = 174, /*[1A20]*/
+    /** @stable ICU 4.4 */
+    UBLOCK_VEDIC_EXTENSIONS = 175, /*[1CD0]*/
+    /** @stable ICU 4.4 */
+    UBLOCK_LISU = 176, /*[A4D0]*/
+    /** @stable ICU 4.4 */
+    UBLOCK_BAMUM = 177, /*[A6A0]*/
+    /** @stable ICU 4.4 */
+    UBLOCK_COMMON_INDIC_NUMBER_FORMS = 178, /*[A830]*/
+    /** @stable ICU 4.4 */
+    UBLOCK_DEVANAGARI_EXTENDED = 179, /*[A8E0]*/
+    /** @stable ICU 4.4 */
+    UBLOCK_HANGUL_JAMO_EXTENDED_A = 180, /*[A960]*/
+    /** @stable ICU 4.4 */
+    UBLOCK_JAVANESE = 181, /*[A980]*/
+    /** @stable ICU 4.4 */
+    UBLOCK_MYANMAR_EXTENDED_A = 182, /*[AA60]*/
+    /** @stable ICU 4.4 */
+    UBLOCK_TAI_VIET = 183, /*[AA80]*/
+    /** @stable ICU 4.4 */
+    UBLOCK_MEETEI_MAYEK = 184, /*[ABC0]*/
+    /** @stable ICU 4.4 */
+    UBLOCK_HANGUL_JAMO_EXTENDED_B = 185, /*[D7B0]*/
+    /** @stable ICU 4.4 */
+    UBLOCK_IMPERIAL_ARAMAIC = 186, /*[10840]*/
+    /** @stable ICU 4.4 */
+    UBLOCK_OLD_SOUTH_ARABIAN = 187, /*[10A60]*/
+    /** @stable ICU 4.4 */
+    UBLOCK_AVESTAN = 188, /*[10B00]*/
+    /** @stable ICU 4.4 */
+    UBLOCK_INSCRIPTIONAL_PARTHIAN = 189, /*[10B40]*/
+    /** @stable ICU 4.4 */
+    UBLOCK_INSCRIPTIONAL_PAHLAVI = 190, /*[10B60]*/
+    /** @stable ICU 4.4 */
+    UBLOCK_OLD_TURKIC = 191, /*[10C00]*/
+    /** @stable ICU 4.4 */
+    UBLOCK_RUMI_NUMERAL_SYMBOLS = 192, /*[10E60]*/
+    /** @stable ICU 4.4 */
+    UBLOCK_KAITHI = 193, /*[11080]*/
+    /** @stable ICU 4.4 */
+    UBLOCK_EGYPTIAN_HIEROGLYPHS = 194, /*[13000]*/
+    /** @stable ICU 4.4 */
+    UBLOCK_ENCLOSED_ALPHANUMERIC_SUPPLEMENT = 195, /*[1F100]*/
+    /** @stable ICU 4.4 */
+    UBLOCK_ENCLOSED_IDEOGRAPHIC_SUPPLEMENT = 196, /*[1F200]*/
+    /** @stable ICU 4.4 */
+    UBLOCK_CJK_UNIFIED_IDEOGRAPHS_EXTENSION_C = 197, /*[2A700]*/
+
+    /* New blocks in Unicode 6.0 */
+
+    /** @stable ICU 4.6 */
+    UBLOCK_MANDAIC = 198, /*[0840]*/
+    /** @stable ICU 4.6 */
+    UBLOCK_BATAK = 199, /*[1BC0]*/
+    /** @stable ICU 4.6 */
+    UBLOCK_ETHIOPIC_EXTENDED_A = 200, /*[AB00]*/
+    /** @stable ICU 4.6 */
+    UBLOCK_BRAHMI = 201, /*[11000]*/
+    /** @stable ICU 4.6 */
+    UBLOCK_BAMUM_SUPPLEMENT = 202, /*[16800]*/
+    /** @stable ICU 4.6 */
+    UBLOCK_KANA_SUPPLEMENT = 203, /*[1B000]*/
+    /** @stable ICU 4.6 */
+    UBLOCK_PLAYING_CARDS = 204, /*[1F0A0]*/
+    /** @stable ICU 4.6 */
+    UBLOCK_MISCELLANEOUS_SYMBOLS_AND_PICTOGRAPHS = 205, /*[1F300]*/
+    /** @stable ICU 4.6 */
+    UBLOCK_EMOTICONS = 206, /*[1F600]*/
+    /** @stable ICU 4.6 */
+    UBLOCK_TRANSPORT_AND_MAP_SYMBOLS = 207, /*[1F680]*/
+    /** @stable ICU 4.6 */
+    UBLOCK_ALCHEMICAL_SYMBOLS = 208, /*[1F700]*/
+    /** @stable ICU 4.6 */
+    UBLOCK_CJK_UNIFIED_IDEOGRAPHS_EXTENSION_D = 209, /*[2B740]*/
+
+    /* New blocks in Unicode 6.1 */
+
+    /** @stable ICU 49 */
+    UBLOCK_ARABIC_EXTENDED_A = 210, /*[08A0]*/
+    /** @stable ICU 49 */
+    UBLOCK_ARABIC_MATHEMATICAL_ALPHABETIC_SYMBOLS = 211, /*[1EE00]*/
+    /** @stable ICU 49 */
+    UBLOCK_CHAKMA = 212, /*[11100]*/
+    /** @stable ICU 49 */
+    UBLOCK_MEETEI_MAYEK_EXTENSIONS = 213, /*[AAE0]*/
+    /** @stable ICU 49 */
+    UBLOCK_MEROITIC_CURSIVE = 214, /*[109A0]*/
+    /** @stable ICU 49 */
+    UBLOCK_MEROITIC_HIEROGLYPHS = 215, /*[10980]*/
+    /** @stable ICU 49 */
+    UBLOCK_MIAO = 216, /*[16F00]*/
+    /** @stable ICU 49 */
+    UBLOCK_SHARADA = 217, /*[11180]*/
+    /** @stable ICU 49 */
+    UBLOCK_SORA_SOMPENG = 218, /*[110D0]*/
+    /** @stable ICU 49 */
+    UBLOCK_SUNDANESE_SUPPLEMENT = 219, /*[1CC0]*/
+    /** @stable ICU 49 */
+    UBLOCK_TAKRI = 220, /*[11680]*/
+
+    /* New blocks in Unicode 7.0 */
+
+    /** @stable ICU 54 */
+    UBLOCK_BASSA_VAH = 221, /*[16AD0]*/
+    /** @stable ICU 54 */
+    UBLOCK_CAUCASIAN_ALBANIAN = 222, /*[10530]*/
+    /** @stable ICU 54 */
+    UBLOCK_COPTIC_EPACT_NUMBERS = 223, /*[102E0]*/
+    /** @stable ICU 54 */
+    UBLOCK_COMBINING_DIACRITICAL_MARKS_EXTENDED = 224, /*[1AB0]*/
+    /** @stable ICU 54 */
+    UBLOCK_DUPLOYAN = 225, /*[1BC00]*/
+    /** @stable ICU 54 */
+    UBLOCK_ELBASAN = 226, /*[10500]*/
+    /** @stable ICU 54 */
+    UBLOCK_GEOMETRIC_SHAPES_EXTENDED = 227, /*[1F780]*/
+    /** @stable ICU 54 */
+    UBLOCK_GRANTHA = 228, /*[11300]*/
+    /** @stable ICU 54 */
+    UBLOCK_KHOJKI = 229, /*[11200]*/
+    /** @stable ICU 54 */
+    UBLOCK_KHUDAWADI = 230, /*[112B0]*/
+    /** @stable ICU 54 */
+    UBLOCK_LATIN_EXTENDED_E = 231, /*[AB30]*/
+    /** @stable ICU 54 */
+    UBLOCK_LINEAR_A = 232, /*[10600]*/
+    /** @stable ICU 54 */
+    UBLOCK_MAHAJANI = 233, /*[11150]*/
+    /** @stable ICU 54 */
+    UBLOCK_MANICHAEAN = 234, /*[10AC0]*/
+    /** @stable ICU 54 */
+    UBLOCK_MENDE_KIKAKUI = 235, /*[1E800]*/
+    /** @stable ICU 54 */
+    UBLOCK_MODI = 236, /*[11600]*/
+    /** @stable ICU 54 */
+    UBLOCK_MRO = 237, /*[16A40]*/
+    /** @stable ICU 54 */
+    UBLOCK_MYANMAR_EXTENDED_B = 238, /*[A9E0]*/
+    /** @stable ICU 54 */
+    UBLOCK_NABATAEAN = 239, /*[10880]*/
+    /** @stable ICU 54 */
+    UBLOCK_OLD_NORTH_ARABIAN = 240, /*[10A80]*/
+    /** @stable ICU 54 */
+    UBLOCK_OLD_PERMIC = 241, /*[10350]*/
+    /** @stable ICU 54 */
+    UBLOCK_ORNAMENTAL_DINGBATS = 242, /*[1F650]*/
+    /** @stable ICU 54 */
+    UBLOCK_PAHAWH_HMONG = 243, /*[16B00]*/
+    /** @stable ICU 54 */
+    UBLOCK_PALMYRENE = 244, /*[10860]*/
+    /** @stable ICU 54 */
+    UBLOCK_PAU_CIN_HAU = 245, /*[11AC0]*/
+    /** @stable ICU 54 */
+    UBLOCK_PSALTER_PAHLAVI = 246, /*[10B80]*/
+    /** @stable ICU 54 */
+    UBLOCK_SHORTHAND_FORMAT_CONTROLS = 247, /*[1BCA0]*/
+    /** @stable ICU 54 */
+    UBLOCK_SIDDHAM = 248, /*[11580]*/
+    /** @stable ICU 54 */
+    UBLOCK_SINHALA_ARCHAIC_NUMBERS = 249, /*[111E0]*/
+    /** @stable ICU 54 */
+    UBLOCK_SUPPLEMENTAL_ARROWS_C = 250, /*[1F800]*/
+    /** @stable ICU 54 */
+    UBLOCK_TIRHUTA = 251, /*[11480]*/
+    /** @stable ICU 54 */
+    UBLOCK_WARANG_CITI = 252, /*[118A0]*/
+
+    /* New blocks in Unicode 8.0 */
+
+    /** @stable ICU 56 */
+    UBLOCK_AHOM = 253, /*[11700]*/
+    /** @stable ICU 56 */
+    UBLOCK_ANATOLIAN_HIEROGLYPHS = 254, /*[14400]*/
+    /** @stable ICU 56 */
+    UBLOCK_CHEROKEE_SUPPLEMENT = 255, /*[AB70]*/
+    /** @stable ICU 56 */
+    UBLOCK_CJK_UNIFIED_IDEOGRAPHS_EXTENSION_E = 256, /*[2B820]*/
+    /** @stable ICU 56 */
+    UBLOCK_EARLY_DYNASTIC_CUNEIFORM = 257, /*[12480]*/
+    /** @stable ICU 56 */
+    UBLOCK_HATRAN = 258, /*[108E0]*/
+    /** @stable ICU 56 */
+    UBLOCK_MULTANI = 259, /*[11280]*/
+    /** @stable ICU 56 */
+    UBLOCK_OLD_HUNGARIAN = 260, /*[10C80]*/
+    /** @stable ICU 56 */
+    UBLOCK_SUPPLEMENTAL_SYMBOLS_AND_PICTOGRAPHS = 261, /*[1F900]*/
+    /** @stable ICU 56 */
+    UBLOCK_SUTTON_SIGNWRITING = 262, /*[1D800]*/
+
+    /* New blocks in Unicode 9.0 */
+
+    /** @stable ICU 58 */
+    UBLOCK_ADLAM = 263, /*[1E900]*/
+    /** @stable ICU 58 */
+    UBLOCK_BHAIKSUKI = 264, /*[11C00]*/
+    /** @stable ICU 58 */
+    UBLOCK_CYRILLIC_EXTENDED_C = 265, /*[1C80]*/
+    /** @stable ICU 58 */
+    UBLOCK_GLAGOLITIC_SUPPLEMENT = 266, /*[1E000]*/
+    /** @stable ICU 58 */
+    UBLOCK_IDEOGRAPHIC_SYMBOLS_AND_PUNCTUATION = 267, /*[16FE0]*/
+    /** @stable ICU 58 */
+    UBLOCK_MARCHEN = 268, /*[11C70]*/
+    /** @stable ICU 58 */
+    UBLOCK_MONGOLIAN_SUPPLEMENT = 269, /*[11660]*/
+    /** @stable ICU 58 */
+    UBLOCK_NEWA = 270, /*[11400]*/
+    /** @stable ICU 58 */
+    UBLOCK_OSAGE = 271, /*[104B0]*/
+    /** @stable ICU 58 */
+    UBLOCK_TANGUT = 272, /*[17000]*/
+    /** @stable ICU 58 */
+    UBLOCK_TANGUT_COMPONENTS = 273, /*[18800]*/
+
+    // New blocks in Unicode 10.0
+
+    /** @stable ICU 60 */
+    UBLOCK_CJK_UNIFIED_IDEOGRAPHS_EXTENSION_F = 274, /*[2CEB0]*/
+    /** @stable ICU 60 */
+    UBLOCK_KANA_EXTENDED_A = 275, /*[1B100]*/
+    /** @stable ICU 60 */
+    UBLOCK_MASARAM_GONDI = 276, /*[11D00]*/
+    /** @stable ICU 60 */
+    UBLOCK_NUSHU = 277, /*[1B170]*/
+    /** @stable ICU 60 */
+    UBLOCK_SOYOMBO = 278, /*[11A50]*/
+    /** @stable ICU 60 */
+    UBLOCK_SYRIAC_SUPPLEMENT = 279, /*[0860]*/
+    /** @stable ICU 60 */
+    UBLOCK_ZANABAZAR_SQUARE = 280, /*[11A00]*/
+
+#ifndef U_HIDE_DEPRECATED_API
+    /**
+     * One more than the highest normal UBlockCode value.
+     * The highest value is available via u_getIntPropertyMaxValue(UCHAR_BLOCK).
+     *
+     * @deprecated ICU 58 The numeric value may change over time, see ICU ticket #12420.
+     */
+    UBLOCK_COUNT = 281,
+#endif  // U_HIDE_DEPRECATED_API
+
+    /** @stable ICU 2.0 */
+    UBLOCK_INVALID_CODE=-1
+};
+
+/** @stable ICU 2.0 */
+typedef enum UBlockCode UBlockCode;
+
+/**
+ * East Asian Width constants.
+ *
+ * @see UCHAR_EAST_ASIAN_WIDTH
+ * @see u_getIntPropertyValue
+ * @stable ICU 2.2
+ */
+typedef enum UEastAsianWidth {
+    /*
+     * Note: UEastAsianWidth constants are parsed by preparseucd.py.
+     * It matches lines like
+     *     U_EA_<Unicode East_Asian_Width value name>
+     */
+
+    U_EA_NEUTRAL,   /*[N]*/
+    U_EA_AMBIGUOUS, /*[A]*/
+    U_EA_HALFWIDTH, /*[H]*/
+    U_EA_FULLWIDTH, /*[F]*/
+    U_EA_NARROW,    /*[Na]*/
+    U_EA_WIDE,      /*[W]*/
+#ifndef U_HIDE_DEPRECATED_API
+    /**
+     * One more than the highest normal UEastAsianWidth value.
+     * The highest value is available via u_getIntPropertyMaxValue(UCHAR_EAST_ASIAN_WIDTH).
+     *
+     * @deprecated ICU 58 The numeric value may change over time, see ICU ticket #12420.
+     */
+    U_EA_COUNT
+#endif  // U_HIDE_DEPRECATED_API
+} UEastAsianWidth;
+
+/**
+ * Selector constants for u_charName().
+ * u_charName() returns the "modern" name of a
+ * Unicode character; or the name that was defined in
+ * Unicode version 1.0, before the Unicode standard merged
+ * with ISO-10646; or an "extended" name that gives each
+ * Unicode code point a unique name.
+ *
+ * @see u_charName
+ * @stable ICU 2.0
+ */
+typedef enum UCharNameChoice {
+    /** Unicode character name (Name property). @stable ICU 2.0 */
+    U_UNICODE_CHAR_NAME,
+#ifndef U_HIDE_DEPRECATED_API
+    /**
+     * The Unicode_1_Name property value which is of little practical value.
+     * Beginning with ICU 49, ICU APIs return an empty string for this name choice.
+     * @deprecated ICU 49
+     */
+    U_UNICODE_10_CHAR_NAME,
+#endif  /* U_HIDE_DEPRECATED_API */
+    /** Standard or synthetic character name. @stable ICU 2.0 */
+    U_EXTENDED_CHAR_NAME = U_UNICODE_CHAR_NAME+2,
+    /** Corrected name from NameAliases.txt. @stable ICU 4.4 */
+    U_CHAR_NAME_ALIAS,
+#ifndef U_HIDE_DEPRECATED_API
+    /**
+     * One more than the highest normal UCharNameChoice value.
+     * @deprecated ICU 58 The numeric value may change over time, see ICU ticket #12420.
+     */
+    U_CHAR_NAME_CHOICE_COUNT
+#endif  // U_HIDE_DEPRECATED_API
+} UCharNameChoice;
+
+/**
+ * Selector constants for u_getPropertyName() and
+ * u_getPropertyValueName().  These selectors are used to choose which
+ * name is returned for a given property or value.  All properties and
+ * values have a long name.  Most have a short name, but some do not.
+ * Unicode allows for additional names, beyond the long and short
+ * name, which would be indicated by U_LONG_PROPERTY_NAME + i, where
+ * i=1, 2,...
+ *
+ * @see u_getPropertyName()
+ * @see u_getPropertyValueName()
+ * @stable ICU 2.4
+ */
+typedef enum UPropertyNameChoice {
+    U_SHORT_PROPERTY_NAME,
+    U_LONG_PROPERTY_NAME,
+#ifndef U_HIDE_DEPRECATED_API
+    /**
+     * One more than the highest normal UPropertyNameChoice value.
+     * @deprecated ICU 58 The numeric value may change over time, see ICU ticket #12420.
+     */
+    U_PROPERTY_NAME_CHOICE_COUNT
+#endif  // U_HIDE_DEPRECATED_API
+} UPropertyNameChoice;
+
+/**
+ * Decomposition Type constants.
+ *
+ * @see UCHAR_DECOMPOSITION_TYPE
+ * @stable ICU 2.2
+ */
+typedef enum UDecompositionType {
+    /*
+     * Note: UDecompositionType constants are parsed by preparseucd.py.
+     * It matches lines like
+     *     U_DT_<Unicode Decomposition_Type value name>
+     */
+
+    U_DT_NONE,              /*[none]*/
+    U_DT_CANONICAL,         /*[can]*/
+    U_DT_COMPAT,            /*[com]*/
+    U_DT_CIRCLE,            /*[enc]*/
+    U_DT_FINAL,             /*[fin]*/
+    U_DT_FONT,              /*[font]*/
+    U_DT_FRACTION,          /*[fra]*/
+    U_DT_INITIAL,           /*[init]*/
+    U_DT_ISOLATED,          /*[iso]*/
+    U_DT_MEDIAL,            /*[med]*/
+    U_DT_NARROW,            /*[nar]*/
+    U_DT_NOBREAK,           /*[nb]*/
+    U_DT_SMALL,             /*[sml]*/
+    U_DT_SQUARE,            /*[sqr]*/
+    U_DT_SUB,               /*[sub]*/
+    U_DT_SUPER,             /*[sup]*/
+    U_DT_VERTICAL,          /*[vert]*/
+    U_DT_WIDE,              /*[wide]*/
+#ifndef U_HIDE_DEPRECATED_API
+    /**
+     * One more than the highest normal UDecompositionType value.
+     * The highest value is available via u_getIntPropertyMaxValue(UCHAR_DECOMPOSITION_TYPE).
+     *
+     * @deprecated ICU 58 The numeric value may change over time, see ICU ticket #12420.
+     */
+    U_DT_COUNT /* 18 */
+#endif  // U_HIDE_DEPRECATED_API
+} UDecompositionType;
+
+/**
+ * Joining Type constants.
+ *
+ * @see UCHAR_JOINING_TYPE
+ * @stable ICU 2.2
+ */
+typedef enum UJoiningType {
+    /*
+     * Note: UJoiningType constants are parsed by preparseucd.py.
+     * It matches lines like
+     *     U_JT_<Unicode Joining_Type value name>
+     */
+
+    U_JT_NON_JOINING,       /*[U]*/
+    U_JT_JOIN_CAUSING,      /*[C]*/
+    U_JT_DUAL_JOINING,      /*[D]*/
+    U_JT_LEFT_JOINING,      /*[L]*/
+    U_JT_RIGHT_JOINING,     /*[R]*/
+    U_JT_TRANSPARENT,       /*[T]*/
+#ifndef U_HIDE_DEPRECATED_API
+    /**
+     * One more than the highest normal UJoiningType value.
+     * The highest value is available via u_getIntPropertyMaxValue(UCHAR_JOINING_TYPE).
+     *
+     * @deprecated ICU 58 The numeric value may change over time, see ICU ticket #12420.
+     */
+    U_JT_COUNT /* 6 */
+#endif  // U_HIDE_DEPRECATED_API
+} UJoiningType;
+
+/**
+ * Joining Group constants.
+ *
+ * @see UCHAR_JOINING_GROUP
+ * @stable ICU 2.2
+ */
+typedef enum UJoiningGroup {
+    /*
+     * Note: UJoiningGroup constants are parsed by preparseucd.py.
+     * It matches lines like
+     *     U_JG_<Unicode Joining_Group value name>
+     */
+
+    U_JG_NO_JOINING_GROUP,
+    U_JG_AIN,
+    U_JG_ALAPH,
+    U_JG_ALEF,
+    U_JG_BEH,
+    U_JG_BETH,
+    U_JG_DAL,
+    U_JG_DALATH_RISH,
+    U_JG_E,
+    U_JG_FEH,
+    U_JG_FINAL_SEMKATH,
+    U_JG_GAF,
+    U_JG_GAMAL,
+    U_JG_HAH,
+    U_JG_TEH_MARBUTA_GOAL,  /**< @stable ICU 4.6 */
+    U_JG_HAMZA_ON_HEH_GOAL=U_JG_TEH_MARBUTA_GOAL,
+    U_JG_HE,
+    U_JG_HEH,
+    U_JG_HEH_GOAL,
+    U_JG_HETH,
+    U_JG_KAF,
+    U_JG_KAPH,
+    U_JG_KNOTTED_HEH,
+    U_JG_LAM,
+    U_JG_LAMADH,
+    U_JG_MEEM,
+    U_JG_MIM,
+    U_JG_NOON,
+    U_JG_NUN,
+    U_JG_PE,
+    U_JG_QAF,
+    U_JG_QAPH,
+    U_JG_REH,
+    U_JG_REVERSED_PE,
+    U_JG_SAD,
+    U_JG_SADHE,
+    U_JG_SEEN,
+    U_JG_SEMKATH,
+    U_JG_SHIN,
+    U_JG_SWASH_KAF,
+    U_JG_SYRIAC_WAW,
+    U_JG_TAH,
+    U_JG_TAW,
+    U_JG_TEH_MARBUTA,
+    U_JG_TETH,
+    U_JG_WAW,
+    U_JG_YEH,
+    U_JG_YEH_BARREE,
+    U_JG_YEH_WITH_TAIL,
+    U_JG_YUDH,
+    U_JG_YUDH_HE,
+    U_JG_ZAIN,
+    U_JG_FE,        /**< @stable ICU 2.6 */
+    U_JG_KHAPH,     /**< @stable ICU 2.6 */
+    U_JG_ZHAIN,     /**< @stable ICU 2.6 */
+    U_JG_BURUSHASKI_YEH_BARREE, /**< @stable ICU 4.0 */
+    U_JG_FARSI_YEH, /**< @stable ICU 4.4 */
+    U_JG_NYA,       /**< @stable ICU 4.4 */
+    U_JG_ROHINGYA_YEH,  /**< @stable ICU 49 */
+    U_JG_MANICHAEAN_ALEPH,  /**< @stable ICU 54 */
+    U_JG_MANICHAEAN_AYIN,  /**< @stable ICU 54 */
+    U_JG_MANICHAEAN_BETH,  /**< @stable ICU 54 */
+    U_JG_MANICHAEAN_DALETH,  /**< @stable ICU 54 */
+    U_JG_MANICHAEAN_DHAMEDH,  /**< @stable ICU 54 */
+    U_JG_MANICHAEAN_FIVE,  /**< @stable ICU 54 */
+    U_JG_MANICHAEAN_GIMEL,  /**< @stable ICU 54 */
+    U_JG_MANICHAEAN_HETH,  /**< @stable ICU 54 */
+    U_JG_MANICHAEAN_HUNDRED,  /**< @stable ICU 54 */
+    U_JG_MANICHAEAN_KAPH,  /**< @stable ICU 54 */
+    U_JG_MANICHAEAN_LAMEDH,  /**< @stable ICU 54 */
+    U_JG_MANICHAEAN_MEM,  /**< @stable ICU 54 */
+    U_JG_MANICHAEAN_NUN,  /**< @stable ICU 54 */
+    U_JG_MANICHAEAN_ONE,  /**< @stable ICU 54 */
+    U_JG_MANICHAEAN_PE,  /**< @stable ICU 54 */
+    U_JG_MANICHAEAN_QOPH,  /**< @stable ICU 54 */
+    U_JG_MANICHAEAN_RESH,  /**< @stable ICU 54 */
+    U_JG_MANICHAEAN_SADHE,  /**< @stable ICU 54 */
+    U_JG_MANICHAEAN_SAMEKH,  /**< @stable ICU 54 */
+    U_JG_MANICHAEAN_TAW,  /**< @stable ICU 54 */
+    U_JG_MANICHAEAN_TEN,  /**< @stable ICU 54 */
+    U_JG_MANICHAEAN_TETH,  /**< @stable ICU 54 */
+    U_JG_MANICHAEAN_THAMEDH,  /**< @stable ICU 54 */
+    U_JG_MANICHAEAN_TWENTY,  /**< @stable ICU 54 */
+    U_JG_MANICHAEAN_WAW,  /**< @stable ICU 54 */
+    U_JG_MANICHAEAN_YODH,  /**< @stable ICU 54 */
+    U_JG_MANICHAEAN_ZAYIN,  /**< @stable ICU 54 */
+    U_JG_STRAIGHT_WAW,  /**< @stable ICU 54 */
+    U_JG_AFRICAN_FEH,  /**< @stable ICU 58 */
+    U_JG_AFRICAN_NOON,  /**< @stable ICU 58 */
+    U_JG_AFRICAN_QAF,  /**< @stable ICU 58 */
+
+    U_JG_MALAYALAM_BHA,  /**< @stable ICU 60 */
+    U_JG_MALAYALAM_JA,  /**< @stable ICU 60 */
+    U_JG_MALAYALAM_LLA,  /**< @stable ICU 60 */
+    U_JG_MALAYALAM_LLLA,  /**< @stable ICU 60 */
+    U_JG_MALAYALAM_NGA,  /**< @stable ICU 60 */
+    U_JG_MALAYALAM_NNA,  /**< @stable ICU 60 */
+    U_JG_MALAYALAM_NNNA,  /**< @stable ICU 60 */
+    U_JG_MALAYALAM_NYA,  /**< @stable ICU 60 */
+    U_JG_MALAYALAM_RA,  /**< @stable ICU 60 */
+    U_JG_MALAYALAM_SSA,  /**< @stable ICU 60 */
+    U_JG_MALAYALAM_TTA,  /**< @stable ICU 60 */
+
+#ifndef U_HIDE_DEPRECATED_API
+    /**
+     * One more than the highest normal UJoiningGroup value.
+     * The highest value is available via u_getIntPropertyMaxValue(UCHAR_JOINING_GROUP).
+     *
+     * @deprecated ICU 58 The numeric value may change over time, see ICU ticket #12420.
+     */
+    U_JG_COUNT
+#endif  // U_HIDE_DEPRECATED_API
+} UJoiningGroup;
+
+/**
+ * Grapheme Cluster Break constants.
+ *
+ * @see UCHAR_GRAPHEME_CLUSTER_BREAK
+ * @stable ICU 3.4
+ */
+typedef enum UGraphemeClusterBreak {
+    /*
+     * Note: UGraphemeClusterBreak constants are parsed by preparseucd.py.
+     * It matches lines like
+     *     U_GCB_<Unicode Grapheme_Cluster_Break value name>
+     */
+
+    U_GCB_OTHER = 0,            /*[XX]*/
+    U_GCB_CONTROL = 1,          /*[CN]*/
+    U_GCB_CR = 2,               /*[CR]*/
+    U_GCB_EXTEND = 3,           /*[EX]*/
+    U_GCB_L = 4,                /*[L]*/
+    U_GCB_LF = 5,               /*[LF]*/
+    U_GCB_LV = 6,               /*[LV]*/
+    U_GCB_LVT = 7,              /*[LVT]*/
+    U_GCB_T = 8,                /*[T]*/
+    U_GCB_V = 9,                /*[V]*/
+    /** @stable ICU 4.0 */
+    U_GCB_SPACING_MARK = 10,    /*[SM]*/ /* from here on: new in Unicode 5.1/ICU 4.0 */
+    /** @stable ICU 4.0 */
+    U_GCB_PREPEND = 11,         /*[PP]*/
+    /** @stable ICU 50 */
+    U_GCB_REGIONAL_INDICATOR = 12,  /*[RI]*/ /* new in Unicode 6.2/ICU 50 */
+    /** @stable ICU 58 */
+    U_GCB_E_BASE = 13,          /*[EB]*/ /* from here on: new in Unicode 9.0/ICU 58 */
+    /** @stable ICU 58 */
+    U_GCB_E_BASE_GAZ = 14,      /*[EBG]*/
+    /** @stable ICU 58 */
+    U_GCB_E_MODIFIER = 15,      /*[EM]*/
+    /** @stable ICU 58 */
+    U_GCB_GLUE_AFTER_ZWJ = 16,  /*[GAZ]*/
+    /** @stable ICU 58 */
+    U_GCB_ZWJ = 17,             /*[ZWJ]*/
+#ifndef U_HIDE_DEPRECATED_API
+    /**
+     * One more than the highest normal UGraphemeClusterBreak value.
+     * The highest value is available via u_getIntPropertyMaxValue(UCHAR_GRAPHEME_CLUSTER_BREAK).
+     *
+     * @deprecated ICU 58 The numeric value may change over time, see ICU ticket #12420.
+     */
+    U_GCB_COUNT = 18
+#endif  // U_HIDE_DEPRECATED_API
+} UGraphemeClusterBreak;
+
+/**
+ * Word Break constants.
+ * (UWordBreak is a pre-existing enum type in ubrk.h for word break status tags.)
+ *
+ * @see UCHAR_WORD_BREAK
+ * @stable ICU 3.4
+ */
+typedef enum UWordBreakValues {
+    /*
+     * Note: UWordBreakValues constants are parsed by preparseucd.py.
+     * It matches lines like
+     *     U_WB_<Unicode Word_Break value name>
+     */
+
+    U_WB_OTHER = 0,             /*[XX]*/
+    U_WB_ALETTER = 1,           /*[LE]*/
+    U_WB_FORMAT = 2,            /*[FO]*/
+    U_WB_KATAKANA = 3,          /*[KA]*/
+    U_WB_MIDLETTER = 4,         /*[ML]*/
+    U_WB_MIDNUM = 5,            /*[MN]*/
+    U_WB_NUMERIC = 6,           /*[NU]*/
+    U_WB_EXTENDNUMLET = 7,      /*[EX]*/
+    /** @stable ICU 4.0 */
+    U_WB_CR = 8,                /*[CR]*/ /* from here on: new in Unicode 5.1/ICU 4.0 */
+    /** @stable ICU 4.0 */
+    U_WB_EXTEND = 9,            /*[Extend]*/
+    /** @stable ICU 4.0 */
+    U_WB_LF = 10,               /*[LF]*/
+    /** @stable ICU 4.0 */
+    U_WB_MIDNUMLET =11,         /*[MB]*/
+    /** @stable ICU 4.0 */
+    U_WB_NEWLINE =12,           /*[NL]*/
+    /** @stable ICU 50 */
+    U_WB_REGIONAL_INDICATOR = 13,   /*[RI]*/ /* new in Unicode 6.2/ICU 50 */
+    /** @stable ICU 52 */
+    U_WB_HEBREW_LETTER = 14,    /*[HL]*/ /* from here on: new in Unicode 6.3/ICU 52 */
+    /** @stable ICU 52 */
+    U_WB_SINGLE_QUOTE = 15,     /*[SQ]*/
+    /** @stable ICU 52 */
+    U_WB_DOUBLE_QUOTE = 16,     /*[DQ]*/
+    /** @stable ICU 58 */
+    U_WB_E_BASE = 17,           /*[EB]*/ /* from here on: new in Unicode 9.0/ICU 58 */
+    /** @stable ICU 58 */
+    U_WB_E_BASE_GAZ = 18,       /*[EBG]*/
+    /** @stable ICU 58 */
+    U_WB_E_MODIFIER = 19,       /*[EM]*/
+    /** @stable ICU 58 */
+    U_WB_GLUE_AFTER_ZWJ = 20,   /*[GAZ]*/
+    /** @stable ICU 58 */
+    U_WB_ZWJ = 21,              /*[ZWJ]*/
+#ifndef U_HIDE_DEPRECATED_API
+    /**
+     * One more than the highest normal UWordBreakValues value.
+     * The highest value is available via u_getIntPropertyMaxValue(UCHAR_WORD_BREAK).
+     *
+     * @deprecated ICU 58 The numeric value may change over time, see ICU ticket #12420.
+     */
+    U_WB_COUNT = 22
+#endif  // U_HIDE_DEPRECATED_API
+} UWordBreakValues;
+
+/**
+ * Sentence Break constants.
+ *
+ * @see UCHAR_SENTENCE_BREAK
+ * @stable ICU 3.4
+ */
+typedef enum USentenceBreak {
+    /*
+     * Note: USentenceBreak constants are parsed by preparseucd.py.
+     * It matches lines like
+     *     U_SB_<Unicode Sentence_Break value name>
+     */
+
+    U_SB_OTHER = 0,             /*[XX]*/
+    U_SB_ATERM = 1,             /*[AT]*/
+    U_SB_CLOSE = 2,             /*[CL]*/
+    U_SB_FORMAT = 3,            /*[FO]*/
+    U_SB_LOWER = 4,             /*[LO]*/
+    U_SB_NUMERIC = 5,           /*[NU]*/
+    U_SB_OLETTER = 6,           /*[LE]*/
+    U_SB_SEP = 7,               /*[SE]*/
+    U_SB_SP = 8,                /*[SP]*/
+    U_SB_STERM = 9,             /*[ST]*/
+    U_SB_UPPER = 10,            /*[UP]*/
+    U_SB_CR = 11,               /*[CR]*/ /* from here on: new in Unicode 5.1/ICU 4.0 */
+    U_SB_EXTEND = 12,           /*[EX]*/
+    U_SB_LF = 13,               /*[LF]*/
+    U_SB_SCONTINUE = 14,        /*[SC]*/
+#ifndef U_HIDE_DEPRECATED_API
+    /**
+     * One more than the highest normal USentenceBreak value.
+     * The highest value is available via u_getIntPropertyMaxValue(UCHAR_SENTENCE_BREAK).
+     *
+     * @deprecated ICU 58 The numeric value may change over time, see ICU ticket #12420.
+     */
+    U_SB_COUNT = 15
+#endif  // U_HIDE_DEPRECATED_API
+} USentenceBreak;
+
+/**
+ * Line Break constants.
+ *
+ * @see UCHAR_LINE_BREAK
+ * @stable ICU 2.2
+ */
+typedef enum ULineBreak {
+    /*
+     * Note: ULineBreak constants are parsed by preparseucd.py.
+     * It matches lines like
+     *     U_LB_<Unicode Line_Break value name>
+     */
+
+    U_LB_UNKNOWN = 0,           /*[XX]*/
+    U_LB_AMBIGUOUS = 1,         /*[AI]*/
+    U_LB_ALPHABETIC = 2,        /*[AL]*/
+    U_LB_BREAK_BOTH = 3,        /*[B2]*/
+    U_LB_BREAK_AFTER = 4,       /*[BA]*/
+    U_LB_BREAK_BEFORE = 5,      /*[BB]*/
+    U_LB_MANDATORY_BREAK = 6,   /*[BK]*/
+    U_LB_CONTINGENT_BREAK = 7,  /*[CB]*/
+    U_LB_CLOSE_PUNCTUATION = 8, /*[CL]*/
+    U_LB_COMBINING_MARK = 9,    /*[CM]*/
+    U_LB_CARRIAGE_RETURN = 10,   /*[CR]*/
+    U_LB_EXCLAMATION = 11,       /*[EX]*/
+    U_LB_GLUE = 12,              /*[GL]*/
+    U_LB_HYPHEN = 13,            /*[HY]*/
+    U_LB_IDEOGRAPHIC = 14,       /*[ID]*/
+    /** Renamed from the misspelled "inseperable" in Unicode 4.0.1/ICU 3.0 @stable ICU 3.0 */
+    U_LB_INSEPARABLE = 15,       /*[IN]*/
+    U_LB_INSEPERABLE = U_LB_INSEPARABLE,
+    U_LB_INFIX_NUMERIC = 16,     /*[IS]*/
+    U_LB_LINE_FEED = 17,         /*[LF]*/
+    U_LB_NONSTARTER = 18,        /*[NS]*/
+    U_LB_NUMERIC = 19,           /*[NU]*/
+    U_LB_OPEN_PUNCTUATION = 20,  /*[OP]*/
+    U_LB_POSTFIX_NUMERIC = 21,   /*[PO]*/
+    U_LB_PREFIX_NUMERIC = 22,    /*[PR]*/
+    U_LB_QUOTATION = 23,         /*[QU]*/
+    U_LB_COMPLEX_CONTEXT = 24,   /*[SA]*/
+    U_LB_SURROGATE = 25,         /*[SG]*/
+    U_LB_SPACE = 26,             /*[SP]*/
+    U_LB_BREAK_SYMBOLS = 27,     /*[SY]*/
+    U_LB_ZWSPACE = 28,           /*[ZW]*/
+    /** @stable ICU 2.6 */
+    U_LB_NEXT_LINE = 29,         /*[NL]*/ /* from here on: new in Unicode 4/ICU 2.6 */
+    /** @stable ICU 2.6 */
+    U_LB_WORD_JOINER = 30,       /*[WJ]*/
+    /** @stable ICU 3.4 */
+    U_LB_H2 = 31,                /*[H2]*/ /* from here on: new in Unicode 4.1/ICU 3.4 */
+    /** @stable ICU 3.4 */
+    U_LB_H3 = 32,                /*[H3]*/
+    /** @stable ICU 3.4 */
+    U_LB_JL = 33,                /*[JL]*/
+    /** @stable ICU 3.4 */
+    U_LB_JT = 34,                /*[JT]*/
+    /** @stable ICU 3.4 */
+    U_LB_JV = 35,                /*[JV]*/
+    /** @stable ICU 4.4 */
+    U_LB_CLOSE_PARENTHESIS = 36, /*[CP]*/ /* new in Unicode 5.2/ICU 4.4 */
+    /** @stable ICU 49 */
+    U_LB_CONDITIONAL_JAPANESE_STARTER = 37,/*[CJ]*/ /* new in Unicode 6.1/ICU 49 */
+    /** @stable ICU 49 */
+    U_LB_HEBREW_LETTER = 38,     /*[HL]*/ /* new in Unicode 6.1/ICU 49 */
+    /** @stable ICU 50 */
+    U_LB_REGIONAL_INDICATOR = 39,/*[RI]*/ /* new in Unicode 6.2/ICU 50 */
+    /** @stable ICU 58 */
+    U_LB_E_BASE = 40,            /*[EB]*/ /* from here on: new in Unicode 9.0/ICU 58 */
+    /** @stable ICU 58 */
+    U_LB_E_MODIFIER = 41,        /*[EM]*/
+    /** @stable ICU 58 */
+    U_LB_ZWJ = 42,               /*[ZWJ]*/
+#ifndef U_HIDE_DEPRECATED_API
+    /**
+     * One more than the highest normal ULineBreak value.
+     * The highest value is available via u_getIntPropertyMaxValue(UCHAR_LINE_BREAK).
+     *
+     * @deprecated ICU 58 The numeric value may change over time, see ICU ticket #12420.
+     */
+    U_LB_COUNT = 43
+#endif  // U_HIDE_DEPRECATED_API
+} ULineBreak;
+
+/**
+ * Numeric Type constants.
+ *
+ * @see UCHAR_NUMERIC_TYPE
+ * @stable ICU 2.2
+ */
+typedef enum UNumericType {
+    /*
+     * Note: UNumericType constants are parsed by preparseucd.py.
+     * It matches lines like
+     *     U_NT_<Unicode Numeric_Type value name>
+     */
+
+    U_NT_NONE,              /*[None]*/
+    U_NT_DECIMAL,           /*[de]*/
+    U_NT_DIGIT,             /*[di]*/
+    U_NT_NUMERIC,           /*[nu]*/
+#ifndef U_HIDE_DEPRECATED_API
+    /**
+     * One more than the highest normal UNumericType value.
+     * The highest value is available via u_getIntPropertyMaxValue(UCHAR_NUMERIC_TYPE).
+     *
+     * @deprecated ICU 58 The numeric value may change over time, see ICU ticket #12420.
+     */
+    U_NT_COUNT
+#endif  // U_HIDE_DEPRECATED_API
+} UNumericType;
+
+/**
+ * Hangul Syllable Type constants.
+ *
+ * @see UCHAR_HANGUL_SYLLABLE_TYPE
+ * @stable ICU 2.6
+ */
+typedef enum UHangulSyllableType {
+    /*
+     * Note: UHangulSyllableType constants are parsed by preparseucd.py.
+     * It matches lines like
+     *     U_HST_<Unicode Hangul_Syllable_Type value name>
+     */
+
+    U_HST_NOT_APPLICABLE,   /*[NA]*/
+    U_HST_LEADING_JAMO,     /*[L]*/
+    U_HST_VOWEL_JAMO,       /*[V]*/
+    U_HST_TRAILING_JAMO,    /*[T]*/
+    U_HST_LV_SYLLABLE,      /*[LV]*/
+    U_HST_LVT_SYLLABLE,     /*[LVT]*/
+#ifndef U_HIDE_DEPRECATED_API
+    /**
+     * One more than the highest normal UHangulSyllableType value.
+     * The highest value is available via u_getIntPropertyMaxValue(UCHAR_HANGUL_SYLLABLE_TYPE).
+     *
+     * @deprecated ICU 58 The numeric value may change over time, see ICU ticket #12420.
+     */
+    U_HST_COUNT
+#endif  // U_HIDE_DEPRECATED_API
+} UHangulSyllableType;
+
+/**
+ * Check a binary Unicode property for a code point.
+ *
+ * Unicode, especially in version 3.2, defines many more properties than the
+ * original set in UnicodeData.txt.
+ *
+ * The properties APIs are intended to reflect Unicode properties as defined
+ * in the Unicode Character Database (UCD) and Unicode Technical Reports (UTR).
+ * For details about the properties see http://www.unicode.org/ucd/ .
+ * For names of Unicode properties see the UCD file PropertyAliases.txt.
+ *
+ * Important: If ICU is built with UCD files from Unicode versions below 3.2,
+ * then properties marked with "new in Unicode 3.2" are not or not fully available.
+ *
+ * @param c Code point to test.
+ * @param which UProperty selector constant, identifies which binary property to check.
+ *        Must be UCHAR_BINARY_START<=which<UCHAR_BINARY_LIMIT.
+ * @return TRUE or FALSE according to the binary Unicode property value for c.
+ *         Also FALSE if 'which' is out of bounds or if the Unicode version
+ *         does not have data for the property at all, or not for this code point.
+ *
+ * @see UProperty
+ * @see u_getIntPropertyValue
+ * @see u_getUnicodeVersion
+ * @stable ICU 2.1
+ */
+U_STABLE UBool U_EXPORT2
+u_hasBinaryProperty(UChar32 c, UProperty which);
+
+/**
+ * Check if a code point has the Alphabetic Unicode property.
+ * Same as u_hasBinaryProperty(c, UCHAR_ALPHABETIC).
+ * This is different from u_isalpha!
+ * @param c Code point to test
+ * @return true if the code point has the Alphabetic Unicode property, false otherwise
+ *
+ * @see UCHAR_ALPHABETIC
+ * @see u_isalpha
+ * @see u_hasBinaryProperty
+ * @stable ICU 2.1
+ */
+U_STABLE UBool U_EXPORT2
+u_isUAlphabetic(UChar32 c);
+
+/**
+ * Check if a code point has the Lowercase Unicode property.
+ * Same as u_hasBinaryProperty(c, UCHAR_LOWERCASE).
+ * This is different from u_islower!
+ * @param c Code point to test
+ * @return true if the code point has the Lowercase Unicode property, false otherwise
+ *
+ * @see UCHAR_LOWERCASE
+ * @see u_islower
+ * @see u_hasBinaryProperty
+ * @stable ICU 2.1
+ */
+U_STABLE UBool U_EXPORT2
+u_isULowercase(UChar32 c);
+
+/**
+ * Check if a code point has the Uppercase Unicode property.
+ * Same as u_hasBinaryProperty(c, UCHAR_UPPERCASE).
+ * This is different from u_isupper!
+ * @param c Code point to test
+ * @return true if the code point has the Uppercase Unicode property, false otherwise
+ *
+ * @see UCHAR_UPPERCASE
+ * @see u_isupper
+ * @see u_hasBinaryProperty
+ * @stable ICU 2.1
+ */
+U_STABLE UBool U_EXPORT2
+u_isUUppercase(UChar32 c);
+
+/**
+ * Check if a code point has the White_Space Unicode property.
+ * Same as u_hasBinaryProperty(c, UCHAR_WHITE_SPACE).
+ * This is different from both u_isspace and u_isWhitespace!
+ *
+ * Note: There are several ICU whitespace functions; please see the uchar.h
+ * file documentation for a detailed comparison.
+ *
+ * @param c Code point to test
+ * @return true if the code point has the White_Space Unicode property, false otherwise.
+ *
+ * @see UCHAR_WHITE_SPACE
+ * @see u_isWhitespace
+ * @see u_isspace
+ * @see u_isJavaSpaceChar
+ * @see u_hasBinaryProperty
+ * @stable ICU 2.1
+ */
+U_STABLE UBool U_EXPORT2
+u_isUWhiteSpace(UChar32 c);
+
+/**
+ * Get the property value for an enumerated or integer Unicode property for a code point.
+ * Also returns binary and mask property values.
+ *
+ * Unicode, especially in version 3.2, defines many more properties than the
+ * original set in UnicodeData.txt.
+ *
+ * The properties APIs are intended to reflect Unicode properties as defined
+ * in the Unicode Character Database (UCD) and Unicode Technical Reports (UTR).
+ * For details about the properties see http://www.unicode.org/ .
+ * For names of Unicode properties see the UCD file PropertyAliases.txt.
+ *
+ * Sample usage:
+ * UEastAsianWidth ea=(UEastAsianWidth)u_getIntPropertyValue(c, UCHAR_EAST_ASIAN_WIDTH);
+ * UBool b=(UBool)u_getIntPropertyValue(c, UCHAR_IDEOGRAPHIC);
+ *
+ * @param c Code point to test.
+ * @param which UProperty selector constant, identifies which property to check.
+ *        Must be UCHAR_BINARY_START<=which<UCHAR_BINARY_LIMIT
+ *        or UCHAR_INT_START<=which<UCHAR_INT_LIMIT
+ *        or UCHAR_MASK_START<=which<UCHAR_MASK_LIMIT.
+ * @return Numeric value that is directly the property value or,
+ *         for enumerated properties, corresponds to the numeric value of the enumerated
+ *         constant of the respective property value enumeration type
+ *         (cast to enum type if necessary).
+ *         Returns 0 or 1 (for FALSE/TRUE) for binary Unicode properties.
+ *         Returns a bit-mask for mask properties.
+ *         Returns 0 if 'which' is out of bounds or if the Unicode version
+ *         does not have data for the property at all, or not for this code point.
+ *
+ * @see UProperty
+ * @see u_hasBinaryProperty
+ * @see u_getIntPropertyMinValue
+ * @see u_getIntPropertyMaxValue
+ * @see u_getUnicodeVersion
+ * @stable ICU 2.2
+ */
+U_STABLE int32_t U_EXPORT2
+u_getIntPropertyValue(UChar32 c, UProperty which);
+
+/**
+ * Get the minimum value for an enumerated/integer/binary Unicode property.
+ * Can be used together with u_getIntPropertyMaxValue
+ * to allocate arrays of UnicodeSet or similar.
+ *
+ * @param which UProperty selector constant, identifies which binary property to check.
+ *        Must be UCHAR_BINARY_START<=which<UCHAR_BINARY_LIMIT
+ *        or UCHAR_INT_START<=which<UCHAR_INT_LIMIT.
+ * @return Minimum value returned by u_getIntPropertyValue for a Unicode property.
+ *         0 if the property selector is out of range.
+ *
+ * @see UProperty
+ * @see u_hasBinaryProperty
+ * @see u_getUnicodeVersion
+ * @see u_getIntPropertyMaxValue
+ * @see u_getIntPropertyValue
+ * @stable ICU 2.2
+ */
+U_STABLE int32_t U_EXPORT2
+u_getIntPropertyMinValue(UProperty which);
+
+/**
+ * Get the maximum value for an enumerated/integer/binary Unicode property.
+ * Can be used together with u_getIntPropertyMinValue
+ * to allocate arrays of UnicodeSet or similar.
+ *
+ * Examples for min/max values (for Unicode 3.2):
+ *
+ * - UCHAR_BIDI_CLASS:    0/18 (U_LEFT_TO_RIGHT/U_BOUNDARY_NEUTRAL)
+ * - UCHAR_SCRIPT:        0/45 (USCRIPT_COMMON/USCRIPT_TAGBANWA)
+ * - UCHAR_IDEOGRAPHIC:   0/1  (FALSE/TRUE)
+ *
+ * For undefined UProperty constant values, min/max values will be 0/-1.
+ *
+ * @param which UProperty selector constant, identifies which binary property to check.
+ *        Must be UCHAR_BINARY_START<=which<UCHAR_BINARY_LIMIT
+ *        or UCHAR_INT_START<=which<UCHAR_INT_LIMIT.
+ * @return Maximum value returned by u_getIntPropertyValue for a Unicode property.
+ *         <=0 if the property selector is out of range.
+ *
+ * @see UProperty
+ * @see u_hasBinaryProperty
+ * @see u_getUnicodeVersion
+ * @see u_getIntPropertyMaxValue
+ * @see u_getIntPropertyValue
+ * @stable ICU 2.2
+ */
+U_STABLE int32_t U_EXPORT2
+u_getIntPropertyMaxValue(UProperty which);
+
+/**
+ * Get the numeric value for a Unicode code point as defined in the
+ * Unicode Character Database.
+ *
+ * A "double" return type is necessary because
+ * some numeric values are fractions, negative, or too large for int32_t.
+ *
+ * For characters without any numeric values in the Unicode Character Database,
+ * this function will return U_NO_NUMERIC_VALUE.
+ * Note: This is different from the Unicode Standard which specifies NaN as the default value.
+ * (NaN is not available on all platforms.)
+ *
+ * Similar to java.lang.Character.getNumericValue(), but u_getNumericValue()
+ * also supports negative values, large values, and fractions,
+ * while Java's getNumericValue() returns values 10..35 for ASCII letters.
+ *
+ * @param c Code point to get the numeric value for.
+ * @return Numeric value of c, or U_NO_NUMERIC_VALUE if none is defined.
+ *
+ * @see U_NO_NUMERIC_VALUE
+ * @stable ICU 2.2
+ */
+U_STABLE double U_EXPORT2
+u_getNumericValue(UChar32 c);
+
+/**
+ * Special value that is returned by u_getNumericValue when
+ * no numeric value is defined for a code point.
+ *
+ * @see u_getNumericValue
+ * @stable ICU 2.2
+ */
+#define U_NO_NUMERIC_VALUE ((double)-123456789.)
+
+/**
+ * Determines whether the specified code point has the general category "Ll"
+ * (lowercase letter).
+ *
+ * Same as java.lang.Character.isLowerCase().
+ *
+ * This misses some characters that are also lowercase but
+ * have a different general category value.
+ * In order to include those, use UCHAR_LOWERCASE.
+ *
+ * In addition to being equivalent to a Java function, this also serves
+ * as a C/POSIX migration function.
+ * See the comments about C/POSIX character classification functions in the
+ * documentation at the top of this header file.
+ *
+ * @param c the code point to be tested
+ * @return TRUE if the code point is an Ll lowercase letter
+ *
+ * @see UCHAR_LOWERCASE
+ * @see u_isupper
+ * @see u_istitle
+ * @stable ICU 2.0
+ */
+U_STABLE UBool U_EXPORT2
+u_islower(UChar32 c);
+
+/**
+ * Determines whether the specified code point has the general category "Lu"
+ * (uppercase letter).
+ *
+ * Same as java.lang.Character.isUpperCase().
+ *
+ * This misses some characters that are also uppercase but
+ * have a different general category value.
+ * In order to include those, use UCHAR_UPPERCASE.
+ *
+ * In addition to being equivalent to a Java function, this also serves
+ * as a C/POSIX migration function.
+ * See the comments about C/POSIX character classification functions in the
+ * documentation at the top of this header file.
+ *
+ * @param c the code point to be tested
+ * @return TRUE if the code point is an Lu uppercase letter
+ *
+ * @see UCHAR_UPPERCASE
+ * @see u_islower
+ * @see u_istitle
+ * @see u_tolower
+ * @stable ICU 2.0
+ */
+U_STABLE UBool U_EXPORT2
+u_isupper(UChar32 c);
+
+/**
+ * Determines whether the specified code point is a titlecase letter.
+ * True for general category "Lt" (titlecase letter).
+ *
+ * Same as java.lang.Character.isTitleCase().
+ *
+ * @param c the code point to be tested
+ * @return TRUE if the code point is an Lt titlecase letter
+ *
+ * @see u_isupper
+ * @see u_islower
+ * @see u_totitle
+ * @stable ICU 2.0
+ */
+U_STABLE UBool U_EXPORT2
+u_istitle(UChar32 c);
+
+/**
+ * Determines whether the specified code point is a digit character according to Java.
+ * True for characters with general category "Nd" (decimal digit numbers).
+ * Beginning with Unicode 4, this is the same as
+ * testing for the Numeric_Type of Decimal.
+ *
+ * Same as java.lang.Character.isDigit().
+ *
+ * In addition to being equivalent to a Java function, this also serves
+ * as a C/POSIX migration function.
+ * See the comments about C/POSIX character classification functions in the
+ * documentation at the top of this header file.
+ *
+ * @param c the code point to be tested
+ * @return TRUE if the code point is a digit character according to Character.isDigit()
+ *
+ * @stable ICU 2.0
+ */
+U_STABLE UBool U_EXPORT2
+u_isdigit(UChar32 c);
+
+/**
+ * Determines whether the specified code point is a letter character.
+ * True for general categories "L" (letters).
+ *
+ * Same as java.lang.Character.isLetter().
+ *
+ * In addition to being equivalent to a Java function, this also serves
+ * as a C/POSIX migration function.
+ * See the comments about C/POSIX character classification functions in the
+ * documentation at the top of this header file.
+ *
+ * @param c the code point to be tested
+ * @return TRUE if the code point is a letter character
+ *
+ * @see u_isdigit
+ * @see u_isalnum
+ * @stable ICU 2.0
+ */
+U_STABLE UBool U_EXPORT2
+u_isalpha(UChar32 c);
+
+/**
+ * Determines whether the specified code point is an alphanumeric character
+ * (letter or digit) according to Java.
+ * True for characters with general categories
+ * "L" (letters) and "Nd" (decimal digit numbers).
+ *
+ * Same as java.lang.Character.isLetterOrDigit().
+ *
+ * In addition to being equivalent to a Java function, this also serves
+ * as a C/POSIX migration function.
+ * See the comments about C/POSIX character classification functions in the
+ * documentation at the top of this header file.
+ *
+ * @param c the code point to be tested
+ * @return TRUE if the code point is an alphanumeric character according to Character.isLetterOrDigit()
+ *
+ * @stable ICU 2.0
+ */
+U_STABLE UBool U_EXPORT2
+u_isalnum(UChar32 c);
+
+/**
+ * Determines whether the specified code point is a hexadecimal digit.
+ * This is equivalent to u_digit(c, 16)>=0.
+ * True for characters with general category "Nd" (decimal digit numbers)
+ * as well as Latin letters a-f and A-F in both ASCII and Fullwidth ASCII.
+ * (That is, for letters with code points
+ * 0041..0046, 0061..0066, FF21..FF26, FF41..FF46.)
+ *
+ * In order to narrow the definition of hexadecimal digits to only ASCII
+ * characters, use (c<=0x7f && u_isxdigit(c)).
+ *
+ * This is a C/POSIX migration function.
+ * See the comments about C/POSIX character classification functions in the
+ * documentation at the top of this header file.
+ *
+ * @param c the code point to be tested
+ * @return TRUE if the code point is a hexadecimal digit
+ *
+ * @stable ICU 2.6
+ */
+U_STABLE UBool U_EXPORT2
+u_isxdigit(UChar32 c);
+
+/**
+ * Determines whether the specified code point is a punctuation character.
+ * True for characters with general categories "P" (punctuation).
+ *
+ * This is a C/POSIX migration function.
+ * See the comments about C/POSIX character classification functions in the
+ * documentation at the top of this header file.
+ *
+ * @param c the code point to be tested
+ * @return TRUE if the code point is a punctuation character
+ *
+ * @stable ICU 2.6
+ */
+U_STABLE UBool U_EXPORT2
+u_ispunct(UChar32 c);
+
+/**
+ * Determines whether the specified code point is a "graphic" character
+ * (printable, excluding spaces).
+ * TRUE for all characters except those with general categories
+ * "Cc" (control codes), "Cf" (format controls), "Cs" (surrogates),
+ * "Cn" (unassigned), and "Z" (separators).
+ *
+ * This is a C/POSIX migration function.
+ * See the comments about C/POSIX character classification functions in the
+ * documentation at the top of this header file.
+ *
+ * @param c the code point to be tested
+ * @return TRUE if the code point is a "graphic" character
+ *
+ * @stable ICU 2.6
+ */
+U_STABLE UBool U_EXPORT2
+u_isgraph(UChar32 c);
+
+/**
+ * Determines whether the specified code point is a "blank" or "horizontal space",
+ * a character that visibly separates words on a line.
+ * The following are equivalent definitions:
+ *
+ * TRUE for Unicode White_Space characters except for "vertical space controls"
+ * where "vertical space controls" are the following characters:
+ * U+000A (LF) U+000B (VT) U+000C (FF) U+000D (CR) U+0085 (NEL) U+2028 (LS) U+2029 (PS)
+ *
+ * same as
+ *
+ * TRUE for U+0009 (TAB) and characters with general category "Zs" (space separators).
+ *
+ * Note: There are several ICU whitespace functions; please see the uchar.h
+ * file documentation for a detailed comparison.
+ *
+ * This is a C/POSIX migration function.
+ * See the comments about C/POSIX character classification functions in the
+ * documentation at the top of this header file.
+ *
+ * @param c the code point to be tested
+ * @return TRUE if the code point is a "blank"
+ *
+ * @stable ICU 2.6
+ */
+U_STABLE UBool U_EXPORT2
+u_isblank(UChar32 c);
+
+/**
+ * Determines whether the specified code point is "defined",
+ * which usually means that it is assigned a character.
+ * True for general categories other than "Cn" (other, not assigned),
+ * i.e., true for all code points mentioned in UnicodeData.txt.
+ *
+ * Note that non-character code points (e.g., U+FDD0) are not "defined"
+ * (they are Cn), but surrogate code points are "defined" (Cs).
+ *
+ * Same as java.lang.Character.isDefined().
+ *
+ * @param c the code point to be tested
+ * @return TRUE if the code point is assigned a character
+ *
+ * @see u_isdigit
+ * @see u_isalpha
+ * @see u_isalnum
+ * @see u_isupper
+ * @see u_islower
+ * @see u_istitle
+ * @stable ICU 2.0
+ */
+U_STABLE UBool U_EXPORT2
+u_isdefined(UChar32 c);
+
+/**
+ * Determines if the specified character is a space character or not.
+ *
+ * Note: There are several ICU whitespace functions; please see the uchar.h
+ * file documentation for a detailed comparison.
+ *
+ * This is a C/POSIX migration function.
+ * See the comments about C/POSIX character classification functions in the
+ * documentation at the top of this header file.
+ *
+ * @param c    the character to be tested
+ * @return  true if the character is a space character; false otherwise.
+ *
+ * @see u_isJavaSpaceChar
+ * @see u_isWhitespace
+ * @see u_isUWhiteSpace
+ * @stable ICU 2.0
+ */
+U_STABLE UBool U_EXPORT2
+u_isspace(UChar32 c);
+
+/**
+ * Determine if the specified code point is a space character according to Java.
+ * True for characters with general categories "Z" (separators),
+ * which does not include control codes (e.g., TAB or Line Feed).
+ *
+ * Same as java.lang.Character.isSpaceChar().
+ *
+ * Note: There are several ICU whitespace functions; please see the uchar.h
+ * file documentation for a detailed comparison.
+ *
+ * @param c the code point to be tested
+ * @return TRUE if the code point is a space character according to Character.isSpaceChar()
+ *
+ * @see u_isspace
+ * @see u_isWhitespace
+ * @see u_isUWhiteSpace
+ * @stable ICU 2.6
+ */
+U_STABLE UBool U_EXPORT2
+u_isJavaSpaceChar(UChar32 c);
+
+/**
+ * Determines if the specified code point is a whitespace character according to Java/ICU.
+ * A character is considered to be a Java whitespace character if and only
+ * if it satisfies one of the following criteria:
+ *
+ * - It is a Unicode Separator character (categories "Z" = "Zs" or "Zl" or "Zp"), but is not
+ *      also a non-breaking space (U+00A0 NBSP or U+2007 Figure Space or U+202F Narrow NBSP).
+ * - It is U+0009 HORIZONTAL TABULATION.
+ * - It is U+000A LINE FEED.
+ * - It is U+000B VERTICAL TABULATION.
+ * - It is U+000C FORM FEED.
+ * - It is U+000D CARRIAGE RETURN.
+ * - It is U+001C FILE SEPARATOR.
+ * - It is U+001D GROUP SEPARATOR.
+ * - It is U+001E RECORD SEPARATOR.
+ * - It is U+001F UNIT SEPARATOR.
+ *
+ * This API tries to sync with the semantics of Java's
+ * java.lang.Character.isWhitespace(), but it may not return
+ * the exact same results because of the Unicode version
+ * difference.
+ *
+ * Note: Unicode 4.0.1 changed U+200B ZERO WIDTH SPACE from a Space Separator (Zs)
+ * to a Format Control (Cf). Since then, isWhitespace(0x200b) returns false.
+ * See http://www.unicode.org/versions/Unicode4.0.1/
+ *
+ * Note: There are several ICU whitespace functions; please see the uchar.h
+ * file documentation for a detailed comparison.
+ *
+ * @param c the code point to be tested
+ * @return TRUE if the code point is a whitespace character according to Java/ICU
+ *
+ * @see u_isspace
+ * @see u_isJavaSpaceChar
+ * @see u_isUWhiteSpace
+ * @stable ICU 2.0
+ */
+U_STABLE UBool U_EXPORT2
+u_isWhitespace(UChar32 c);
+
+/**
+ * Determines whether the specified code point is a control character
+ * (as defined by this function).
+ * A control character is one of the following:
+ * - ISO 8-bit control character (U+0000..U+001f and U+007f..U+009f)
+ * - U_CONTROL_CHAR (Cc)
+ * - U_FORMAT_CHAR (Cf)
+ * - U_LINE_SEPARATOR (Zl)
+ * - U_PARAGRAPH_SEPARATOR (Zp)
+ *
+ * This is a C/POSIX migration function.
+ * See the comments about C/POSIX character classification functions in the
+ * documentation at the top of this header file.
+ *
+ * @param c the code point to be tested
+ * @return TRUE if the code point is a control character
+ *
+ * @see UCHAR_DEFAULT_IGNORABLE_CODE_POINT
+ * @see u_isprint
+ * @stable ICU 2.0
+ */
+U_STABLE UBool U_EXPORT2
+u_iscntrl(UChar32 c);
+
+/**
+ * Determines whether the specified code point is an ISO control code.
+ * True for U+0000..U+001f and U+007f..U+009f (general category "Cc").
+ *
+ * Same as java.lang.Character.isISOControl().
+ *
+ * @param c the code point to be tested
+ * @return TRUE if the code point is an ISO control code
+ *
+ * @see u_iscntrl
+ * @stable ICU 2.6
+ */
+U_STABLE UBool U_EXPORT2
+u_isISOControl(UChar32 c);
+
+/**
+ * Determines whether the specified code point is a printable character.
+ * True for general categories <em>other</em> than "C" (controls).
+ *
+ * This is a C/POSIX migration function.
+ * See the comments about C/POSIX character classification functions in the
+ * documentation at the top of this header file.
+ *
+ * @param c the code point to be tested
+ * @return TRUE if the code point is a printable character
+ *
+ * @see UCHAR_DEFAULT_IGNORABLE_CODE_POINT
+ * @see u_iscntrl
+ * @stable ICU 2.0
+ */
+U_STABLE UBool U_EXPORT2
+u_isprint(UChar32 c);
+
+/**
+ * Determines whether the specified code point is a base character.
+ * True for general categories "L" (letters), "N" (numbers),
+ * "Mc" (spacing combining marks), and "Me" (enclosing marks).
+ *
+ * Note that this is different from the Unicode definition in
+ * chapter 3.5, conformance clause D13,
+ * which defines base characters to be all characters (not Cn)
+ * that do not graphically combine with preceding characters (M)
+ * and that are neither control (Cc) or format (Cf) characters.
+ *
+ * @param c the code point to be tested
+ * @return TRUE if the code point is a base character according to this function
+ *
+ * @see u_isalpha
+ * @see u_isdigit
+ * @stable ICU 2.0
+ */
+U_STABLE UBool U_EXPORT2
+u_isbase(UChar32 c);
+
+/**
+ * Returns the bidirectional category value for the code point,
+ * which is used in the Unicode bidirectional algorithm
+ * (UAX #9 http://www.unicode.org/reports/tr9/).
+ * Note that some <em>unassigned</em> code points have bidi values
+ * of R or AL because they are in blocks that are reserved
+ * for Right-To-Left scripts.
+ *
+ * Same as java.lang.Character.getDirectionality()
+ *
+ * @param c the code point to be tested
+ * @return the bidirectional category (UCharDirection) value
+ *
+ * @see UCharDirection
+ * @stable ICU 2.0
+ */
+U_STABLE UCharDirection U_EXPORT2
+u_charDirection(UChar32 c);
+
+/**
+ * Determines whether the code point has the Bidi_Mirrored property.
+ * This property is set for characters that are commonly used in
+ * Right-To-Left contexts and need to be displayed with a "mirrored"
+ * glyph.
+ *
+ * Same as java.lang.Character.isMirrored().
+ * Same as UCHAR_BIDI_MIRRORED
+ *
+ * @param c the code point to be tested
+ * @return TRUE if the character has the Bidi_Mirrored property
+ *
+ * @see UCHAR_BIDI_MIRRORED
+ * @stable ICU 2.0
+ */
+U_STABLE UBool U_EXPORT2
+u_isMirrored(UChar32 c);
+
+/**
+ * Maps the specified character to a "mirror-image" character.
+ * For characters with the Bidi_Mirrored property, implementations
+ * sometimes need a "poor man's" mapping to another Unicode
+ * character (code point) such that the default glyph may serve
+ * as the mirror-image of the default glyph of the specified
+ * character. This is useful for text conversion to and from
+ * codepages with visual order, and for displays without glyph
+ * selection capabilities.
+ *
+ * @param c the code point to be mapped
+ * @return another Unicode code point that may serve as a mirror-image
+ *         substitute, or c itself if there is no such mapping or c
+ *         does not have the Bidi_Mirrored property
+ *
+ * @see UCHAR_BIDI_MIRRORED
+ * @see u_isMirrored
+ * @stable ICU 2.0
+ */
+U_STABLE UChar32 U_EXPORT2
+u_charMirror(UChar32 c);
+
+/**
+ * Maps the specified character to its paired bracket character.
+ * For Bidi_Paired_Bracket_Type!=None, this is the same as u_charMirror().
+ * Otherwise c itself is returned.
+ * See http://www.unicode.org/reports/tr9/
+ *
+ * @param c the code point to be mapped
+ * @return the paired bracket code point,
+ *         or c itself if there is no such mapping
+ *         (Bidi_Paired_Bracket_Type=None)
+ *
+ * @see UCHAR_BIDI_PAIRED_BRACKET
+ * @see UCHAR_BIDI_PAIRED_BRACKET_TYPE
+ * @see u_charMirror
+ * @stable ICU 52
+ */
+U_STABLE UChar32 U_EXPORT2
+u_getBidiPairedBracket(UChar32 c);
+
+/**
+ * Returns the general category value for the code point.
+ *
+ * Same as java.lang.Character.getType().
+ *
+ * @param c the code point to be tested
+ * @return the general category (UCharCategory) value
+ *
+ * @see UCharCategory
+ * @stable ICU 2.0
+ */
+U_STABLE int8_t U_EXPORT2
+u_charType(UChar32 c);
+
+/**
+ * Get a single-bit bit set for the general category of a character.
+ * This bit set can be compared bitwise with U_GC_SM_MASK, U_GC_L_MASK, etc.
+ * Same as U_MASK(u_charType(c)).
+ *
+ * @param c the code point to be tested
+ * @return a single-bit mask corresponding to the general category (UCharCategory) value
+ *
+ * @see u_charType
+ * @see UCharCategory
+ * @see U_GC_CN_MASK
+ * @stable ICU 2.1
+ */
+#define U_GET_GC_MASK(c) U_MASK(u_charType(c))
+
+/**
+ * Callback from u_enumCharTypes(), is called for each contiguous range
+ * of code points c (where start<=c<limit)
+ * with the same Unicode general category ("character type").
+ *
+ * The callback function can stop the enumeration by returning FALSE.
+ *
+ * @param context an opaque pointer, as passed into utrie_enum()
+ * @param start the first code point in a contiguous range with value
+ * @param limit one past the last code point in a contiguous range with value
+ * @param type the general category for all code points in [start..limit[
+ * @return FALSE to stop the enumeration
+ *
+ * @stable ICU 2.1
+ * @see UCharCategory
+ * @see u_enumCharTypes
+ */
+typedef UBool U_CALLCONV
+UCharEnumTypeRange(const void *context, UChar32 start, UChar32 limit, UCharCategory type);
+
+/**
+ * Enumerate efficiently all code points with their Unicode general categories.
+ *
+ * This is useful for building data structures (e.g., UnicodeSet's),
+ * for enumerating all assigned code points (type!=U_UNASSIGNED), etc.
+ *
+ * For each contiguous range of code points with a given general category ("character type"),
+ * the UCharEnumTypeRange function is called.
+ * Adjacent ranges have different types.
+ * The Unicode Standard guarantees that the numeric value of the type is 0..31.
+ *
+ * @param enumRange a pointer to a function that is called for each contiguous range
+ *                  of code points with the same general category
+ * @param context an opaque pointer that is passed on to the callback function
+ *
+ * @stable ICU 2.1
+ * @see UCharCategory
+ * @see UCharEnumTypeRange
+ */
+U_STABLE void U_EXPORT2
+u_enumCharTypes(UCharEnumTypeRange *enumRange, const void *context);
+
+#if !UCONFIG_NO_NORMALIZATION
+
+/**
+ * Returns the combining class of the code point as specified in UnicodeData.txt.
+ *
+ * @param c the code point of the character
+ * @return the combining class of the character
+ * @stable ICU 2.0
+ */
+U_STABLE uint8_t U_EXPORT2
+u_getCombiningClass(UChar32 c);
+
+#endif
+
+/**
+ * Returns the decimal digit value of a decimal digit character.
+ * Such characters have the general category "Nd" (decimal digit numbers)
+ * and a Numeric_Type of Decimal.
+ *
+ * Unlike ICU releases before 2.6, no digit values are returned for any
+ * Han characters because Han number characters are often used with a special
+ * Chinese-style number format (with characters for powers of 10 in between)
+ * instead of in decimal-positional notation.
+ * Unicode 4 explicitly assigns Han number characters the Numeric_Type
+ * Numeric instead of Decimal.
+ * See Jitterbug 1483 for more details.
+ *
+ * Use u_getIntPropertyValue(c, UCHAR_NUMERIC_TYPE) and u_getNumericValue()
+ * for complete numeric Unicode properties.
+ *
+ * @param c the code point for which to get the decimal digit value
+ * @return the decimal digit value of c,
+ *         or -1 if c is not a decimal digit character
+ *
+ * @see u_getNumericValue
+ * @stable ICU 2.0
+ */
+U_STABLE int32_t U_EXPORT2
+u_charDigitValue(UChar32 c);
+
+/**
+ * Returns the Unicode allocation block that contains the character.
+ *
+ * @param c the code point to be tested
+ * @return the block value (UBlockCode) for c
+ *
+ * @see UBlockCode
+ * @stable ICU 2.0
+ */
+U_STABLE UBlockCode U_EXPORT2
+ublock_getCode(UChar32 c);
+
+/**
+ * Retrieve the name of a Unicode character.
+ * Depending on <code>nameChoice</code>, the character name written
+ * into the buffer is the "modern" name or the name that was defined
+ * in Unicode version 1.0.
+ * The name contains only "invariant" characters
+ * like A-Z, 0-9, space, and '-'.
+ * Unicode 1.0 names are only retrieved if they are different from the modern
+ * names and if the data file contains the data for them. gennames may or may
+ * not be called with a command line option to include 1.0 names in unames.dat.
+ *
+ * @param code The character (code point) for which to get the name.
+ *             It must be <code>0<=code<=0x10ffff</code>.
+ * @param nameChoice Selector for which name to get.
+ * @param buffer Destination address for copying the name.
+ *               The name will always be zero-terminated.
+ *               If there is no name, then the buffer will be set to the empty string.
+ * @param bufferLength <code>==sizeof(buffer)</code>
+ * @param pErrorCode Pointer to a UErrorCode variable;
+ *        check for <code>U_SUCCESS()</code> after <code>u_charName()</code>
+ *        returns.
+ * @return The length of the name, or 0 if there is no name for this character.
+ *         If the bufferLength is less than or equal to the length, then the buffer
+ *         contains the truncated name and the returned length indicates the full
+ *         length of the name.
+ *         The length does not include the zero-termination.
+ *
+ * @see UCharNameChoice
+ * @see u_charFromName
+ * @see u_enumCharNames
+ * @stable ICU 2.0
+ */
+U_STABLE int32_t U_EXPORT2
+u_charName(UChar32 code, UCharNameChoice nameChoice,
+           char *buffer, int32_t bufferLength,
+           UErrorCode *pErrorCode);
+
+#ifndef U_HIDE_DEPRECATED_API
+/**
+ * Returns an empty string.
+ * Used to return the ISO 10646 comment for a character.
+ * The Unicode ISO_Comment property is deprecated and has no values.
+ *
+ * @param c The character (code point) for which to get the ISO comment.
+ *             It must be <code>0<=c<=0x10ffff</code>.
+ * @param dest Destination address for copying the comment.
+ *             The comment will be zero-terminated if possible.
+ *             If there is no comment, then the buffer will be set to the empty string.
+ * @param destCapacity <code>==sizeof(dest)</code>
+ * @param pErrorCode Pointer to a UErrorCode variable;
+ *        check for <code>U_SUCCESS()</code> after <code>u_getISOComment()</code>
+ *        returns.
+ * @return 0
+ *
+ * @deprecated ICU 49
+ */
+U_DEPRECATED int32_t U_EXPORT2
+u_getISOComment(UChar32 c,
+                char *dest, int32_t destCapacity,
+                UErrorCode *pErrorCode);
+#endif  /* U_HIDE_DEPRECATED_API */
+
+/**
+ * Find a Unicode character by its name and return its code point value.
+ * The name is matched exactly and completely.
+ * If the name does not correspond to a code point, <i>pErrorCode</i>
+ * is set to <code>U_INVALID_CHAR_FOUND</code>.
+ * A Unicode 1.0 name is matched only if it differs from the modern name.
+ * Unicode names are all uppercase. Extended names are lowercase followed
+ * by an uppercase hexadecimal number, and within angle brackets.
+ *
+ * @param nameChoice Selector for which name to match.
+ * @param name The name to match.
+ * @param pErrorCode Pointer to a UErrorCode variable
+ * @return The Unicode value of the code point with the given name,
+ *         or an undefined value if there is no such code point.
+ *
+ * @see UCharNameChoice
+ * @see u_charName
+ * @see u_enumCharNames
+ * @stable ICU 1.7
+ */
+U_STABLE UChar32 U_EXPORT2
+u_charFromName(UCharNameChoice nameChoice,
+               const char *name,
+               UErrorCode *pErrorCode);
+
+/**
+ * Type of a callback function for u_enumCharNames() that gets called
+ * for each Unicode character with the code point value and
+ * the character name.
+ * If such a function returns FALSE, then the enumeration is stopped.
+ *
+ * @param context The context pointer that was passed to u_enumCharNames().
+ * @param code The Unicode code point for the character with this name.
+ * @param nameChoice Selector for which kind of names is enumerated.
+ * @param name The character's name, zero-terminated.
+ * @param length The length of the name.
+ * @return TRUE if the enumeration should continue, FALSE to stop it.
+ *
+ * @see UCharNameChoice
+ * @see u_enumCharNames
+ * @stable ICU 1.7
+ */
+typedef UBool U_CALLCONV UEnumCharNamesFn(void *context,
+                               UChar32 code,
+                               UCharNameChoice nameChoice,
+                               const char *name,
+                               int32_t length);
+
+/**
+ * Enumerate all assigned Unicode characters between the start and limit
+ * code points (start inclusive, limit exclusive) and call a function
+ * for each, passing the code point value and the character name.
+ * For Unicode 1.0 names, only those are enumerated that differ from the
+ * modern names.
+ *
+ * @param start The first code point in the enumeration range.
+ * @param limit One more than the last code point in the enumeration range
+ *              (the first one after the range).
+ * @param fn The function that is to be called for each character name.
+ * @param context An arbitrary pointer that is passed to the function.
+ * @param nameChoice Selector for which kind of names to enumerate.
+ * @param pErrorCode Pointer to a UErrorCode variable
+ *
+ * @see UCharNameChoice
+ * @see UEnumCharNamesFn
+ * @see u_charName
+ * @see u_charFromName
+ * @stable ICU 1.7
+ */
+U_STABLE void U_EXPORT2
+u_enumCharNames(UChar32 start, UChar32 limit,
+                UEnumCharNamesFn *fn,
+                void *context,
+                UCharNameChoice nameChoice,
+                UErrorCode *pErrorCode);
+
+/**
+ * Return the Unicode name for a given property, as given in the
+ * Unicode database file PropertyAliases.txt.
+ *
+ * In addition, this function maps the property
+ * UCHAR_GENERAL_CATEGORY_MASK to the synthetic names "gcm" /
+ * "General_Category_Mask".  These names are not in
+ * PropertyAliases.txt.
+ *
+ * @param property UProperty selector other than UCHAR_INVALID_CODE.
+ *         If out of range, NULL is returned.
+ *
+ * @param nameChoice selector for which name to get.  If out of range,
+ *         NULL is returned.  All properties have a long name.  Most
+ *         have a short name, but some do not.  Unicode allows for
+ *         additional names; if present these will be returned by
+ *         U_LONG_PROPERTY_NAME + i, where i=1, 2,...
+ *
+ * @return a pointer to the name, or NULL if either the
+ *         property or the nameChoice is out of range.  If a given
+ *         nameChoice returns NULL, then all larger values of
+ *         nameChoice will return NULL, with one exception: if NULL is
+ *         returned for U_SHORT_PROPERTY_NAME, then
+ *         U_LONG_PROPERTY_NAME (and higher) may still return a
+ *         non-NULL value.  The returned pointer is valid until
+ *         u_cleanup() is called.
+ *
+ * @see UProperty
+ * @see UPropertyNameChoice
+ * @stable ICU 2.4
+ */
+U_STABLE const char* U_EXPORT2
+u_getPropertyName(UProperty property,
+                  UPropertyNameChoice nameChoice);
+
+/**
+ * Return the UProperty enum for a given property name, as specified
+ * in the Unicode database file PropertyAliases.txt.  Short, long, and
+ * any other variants are recognized.
+ *
+ * In addition, this function maps the synthetic names "gcm" /
+ * "General_Category_Mask" to the property
+ * UCHAR_GENERAL_CATEGORY_MASK.  These names are not in
+ * PropertyAliases.txt.
+ *
+ * @param alias the property name to be matched.  The name is compared
+ *         using "loose matching" as described in PropertyAliases.txt.
+ *
+ * @return a UProperty enum, or UCHAR_INVALID_CODE if the given name
+ *         does not match any property.
+ *
+ * @see UProperty
+ * @stable ICU 2.4
+ */
+U_STABLE UProperty U_EXPORT2
+u_getPropertyEnum(const char* alias);
+
+/**
+ * Return the Unicode name for a given property value, as given in the
+ * Unicode database file PropertyValueAliases.txt.
+ *
+ * Note: Some of the names in PropertyValueAliases.txt can only be
+ * retrieved using UCHAR_GENERAL_CATEGORY_MASK, not
+ * UCHAR_GENERAL_CATEGORY.  These include: "C" / "Other", "L" /
+ * "Letter", "LC" / "Cased_Letter", "M" / "Mark", "N" / "Number", "P"
+ * / "Punctuation", "S" / "Symbol", and "Z" / "Separator".
+ *
+ * @param property UProperty selector constant.
+ *        Must be UCHAR_BINARY_START<=which<UCHAR_BINARY_LIMIT
+ *        or UCHAR_INT_START<=which<UCHAR_INT_LIMIT
+ *        or UCHAR_MASK_START<=which<UCHAR_MASK_LIMIT.
+ *        If out of range, NULL is returned.
+ *
+ * @param value selector for a value for the given property.  If out
+ *         of range, NULL is returned.  In general, valid values range
+ *         from 0 up to some maximum.  There are a few exceptions:
+ *         (1.) UCHAR_BLOCK values begin at the non-zero value
+ *         UBLOCK_BASIC_LATIN.  (2.)  UCHAR_CANONICAL_COMBINING_CLASS
+ *         values are not contiguous and range from 0..240.  (3.)
+ *         UCHAR_GENERAL_CATEGORY_MASK values are not values of
+ *         UCharCategory, but rather mask values produced by
+ *         U_GET_GC_MASK().  This allows grouped categories such as
+ *         [:L:] to be represented.  Mask values range
+ *         non-contiguously from 1..U_GC_P_MASK.
+ *
+ * @param nameChoice selector for which name to get.  If out of range,
+ *         NULL is returned.  All values have a long name.  Most have
+ *         a short name, but some do not.  Unicode allows for
+ *         additional names; if present these will be returned by
+ *         U_LONG_PROPERTY_NAME + i, where i=1, 2,...
+
+ * @return a pointer to the name, or NULL if either the
+ *         property or the nameChoice is out of range.  If a given
+ *         nameChoice returns NULL, then all larger values of
+ *         nameChoice will return NULL, with one exception: if NULL is
+ *         returned for U_SHORT_PROPERTY_NAME, then
+ *         U_LONG_PROPERTY_NAME (and higher) may still return a
+ *         non-NULL value.  The returned pointer is valid until
+ *         u_cleanup() is called.
+ *
+ * @see UProperty
+ * @see UPropertyNameChoice
+ * @stable ICU 2.4
+ */
+U_STABLE const char* U_EXPORT2
+u_getPropertyValueName(UProperty property,
+                       int32_t value,
+                       UPropertyNameChoice nameChoice);
+
+/**
+ * Return the property value integer for a given value name, as
+ * specified in the Unicode database file PropertyValueAliases.txt.
+ * Short, long, and any other variants are recognized.
+ *
+ * Note: Some of the names in PropertyValueAliases.txt will only be
+ * recognized with UCHAR_GENERAL_CATEGORY_MASK, not
+ * UCHAR_GENERAL_CATEGORY.  These include: "C" / "Other", "L" /
+ * "Letter", "LC" / "Cased_Letter", "M" / "Mark", "N" / "Number", "P"
+ * / "Punctuation", "S" / "Symbol", and "Z" / "Separator".
+ *
+ * @param property UProperty selector constant.
+ *        Must be UCHAR_BINARY_START<=which<UCHAR_BINARY_LIMIT
+ *        or UCHAR_INT_START<=which<UCHAR_INT_LIMIT
+ *        or UCHAR_MASK_START<=which<UCHAR_MASK_LIMIT.
+ *        If out of range, UCHAR_INVALID_CODE is returned.
+ *
+ * @param alias the value name to be matched.  The name is compared
+ *         using "loose matching" as described in
+ *         PropertyValueAliases.txt.
+ *
+ * @return a value integer or UCHAR_INVALID_CODE if the given name
+ *         does not match any value of the given property, or if the
+ *         property is invalid.  Note: UCHAR_GENERAL_CATEGORY_MASK values
+ *         are not values of UCharCategory, but rather mask values
+ *         produced by U_GET_GC_MASK().  This allows grouped
+ *         categories such as [:L:] to be represented.
+ *
+ * @see UProperty
+ * @stable ICU 2.4
+ */
+U_STABLE int32_t U_EXPORT2
+u_getPropertyValueEnum(UProperty property,
+                       const char* alias);
+
+/**
+ * Determines if the specified character is permissible as the
+ * first character in an identifier according to Unicode
+ * (The Unicode Standard, Version 3.0, chapter 5.16 Identifiers).
+ * True for characters with general categories "L" (letters) and "Nl" (letter numbers).
+ *
+ * Same as java.lang.Character.isUnicodeIdentifierStart().
+ * Same as UCHAR_ID_START
+ *
+ * @param c the code point to be tested
+ * @return TRUE if the code point may start an identifier
+ *
+ * @see UCHAR_ID_START
+ * @see u_isalpha
+ * @see u_isIDPart
+ * @stable ICU 2.0
+ */
+U_STABLE UBool U_EXPORT2
+u_isIDStart(UChar32 c);
+
+/**
+ * Determines if the specified character is permissible
+ * in an identifier according to Java.
+ * True for characters with general categories "L" (letters),
+ * "Nl" (letter numbers), "Nd" (decimal digits),
+ * "Mc" and "Mn" (combining marks), "Pc" (connecting punctuation), and
+ * u_isIDIgnorable(c).
+ *
+ * Same as java.lang.Character.isUnicodeIdentifierPart().
+ * Almost the same as Unicode's ID_Continue (UCHAR_ID_CONTINUE)
+ * except that Unicode recommends to ignore Cf which is less than
+ * u_isIDIgnorable(c).
+ *
+ * @param c the code point to be tested
+ * @return TRUE if the code point may occur in an identifier according to Java
+ *
+ * @see UCHAR_ID_CONTINUE
+ * @see u_isIDStart
+ * @see u_isIDIgnorable
+ * @stable ICU 2.0
+ */
+U_STABLE UBool U_EXPORT2
+u_isIDPart(UChar32 c);
+
+/**
+ * Determines if the specified character should be regarded
+ * as an ignorable character in an identifier,
+ * according to Java.
+ * True for characters with general category "Cf" (format controls) as well as
+ * non-whitespace ISO controls
+ * (U+0000..U+0008, U+000E..U+001B, U+007F..U+009F).
+ *
+ * Same as java.lang.Character.isIdentifierIgnorable().
+ *
+ * Note that Unicode just recommends to ignore Cf (format controls).
+ *
+ * @param c the code point to be tested
+ * @return TRUE if the code point is ignorable in identifiers according to Java
+ *
+ * @see UCHAR_DEFAULT_IGNORABLE_CODE_POINT
+ * @see u_isIDStart
+ * @see u_isIDPart
+ * @stable ICU 2.0
+ */
+U_STABLE UBool U_EXPORT2
+u_isIDIgnorable(UChar32 c);
+
+/**
+ * Determines if the specified character is permissible as the
+ * first character in a Java identifier.
+ * In addition to u_isIDStart(c), true for characters with
+ * general categories "Sc" (currency symbols) and "Pc" (connecting punctuation).
+ *
+ * Same as java.lang.Character.isJavaIdentifierStart().
+ *
+ * @param c the code point to be tested
+ * @return TRUE if the code point may start a Java identifier
+ *
+ * @see     u_isJavaIDPart
+ * @see     u_isalpha
+ * @see     u_isIDStart
+ * @stable ICU 2.0
+ */
+U_STABLE UBool U_EXPORT2
+u_isJavaIDStart(UChar32 c);
+
+/**
+ * Determines if the specified character is permissible
+ * in a Java identifier.
+ * In addition to u_isIDPart(c), true for characters with
+ * general category "Sc" (currency symbols).
+ *
+ * Same as java.lang.Character.isJavaIdentifierPart().
+ *
+ * @param c the code point to be tested
+ * @return TRUE if the code point may occur in a Java identifier
+ *
+ * @see     u_isIDIgnorable
+ * @see     u_isJavaIDStart
+ * @see     u_isalpha
+ * @see     u_isdigit
+ * @see     u_isIDPart
+ * @stable ICU 2.0
+ */
+U_STABLE UBool U_EXPORT2
+u_isJavaIDPart(UChar32 c);
+
+/**
+ * The given character is mapped to its lowercase equivalent according to
+ * UnicodeData.txt; if the character has no lowercase equivalent, the character
+ * itself is returned.
+ *
+ * Same as java.lang.Character.toLowerCase().
+ *
+ * This function only returns the simple, single-code point case mapping.
+ * Full case mappings should be used whenever possible because they produce
+ * better results by working on whole strings.
+ * They take into account the string context and the language and can map
+ * to a result string with a different length as appropriate.
+ * Full case mappings are applied by the string case mapping functions,
+ * see ustring.h and the UnicodeString class.
+ * See also the User Guide chapter on C/POSIX migration:
+ * http://icu-project.org/userguide/posix.html#case_mappings
+ *
+ * @param c the code point to be mapped
+ * @return the Simple_Lowercase_Mapping of the code point, if any;
+ *         otherwise the code point itself.
+ * @stable ICU 2.0
+ */
+U_STABLE UChar32 U_EXPORT2
+u_tolower(UChar32 c);
+
+/**
+ * The given character is mapped to its uppercase equivalent according to UnicodeData.txt;
+ * if the character has no uppercase equivalent, the character itself is
+ * returned.
+ *
+ * Same as java.lang.Character.toUpperCase().
+ *
+ * This function only returns the simple, single-code point case mapping.
+ * Full case mappings should be used whenever possible because they produce
+ * better results by working on whole strings.
+ * They take into account the string context and the language and can map
+ * to a result string with a different length as appropriate.
+ * Full case mappings are applied by the string case mapping functions,
+ * see ustring.h and the UnicodeString class.
+ * See also the User Guide chapter on C/POSIX migration:
+ * http://icu-project.org/userguide/posix.html#case_mappings
+ *
+ * @param c the code point to be mapped
+ * @return the Simple_Uppercase_Mapping of the code point, if any;
+ *         otherwise the code point itself.
+ * @stable ICU 2.0
+ */
+U_STABLE UChar32 U_EXPORT2
+u_toupper(UChar32 c);
+
+/**
+ * The given character is mapped to its titlecase equivalent
+ * according to UnicodeData.txt;
+ * if none is defined, the character itself is returned.
+ *
+ * Same as java.lang.Character.toTitleCase().
+ *
+ * This function only returns the simple, single-code point case mapping.
+ * Full case mappings should be used whenever possible because they produce
+ * better results by working on whole strings.
+ * They take into account the string context and the language and can map
+ * to a result string with a different length as appropriate.
+ * Full case mappings are applied by the string case mapping functions,
+ * see ustring.h and the UnicodeString class.
+ * See also the User Guide chapter on C/POSIX migration:
+ * http://icu-project.org/userguide/posix.html#case_mappings
+ *
+ * @param c the code point to be mapped
+ * @return the Simple_Titlecase_Mapping of the code point, if any;
+ *         otherwise the code point itself.
+ * @stable ICU 2.0
+ */
+U_STABLE UChar32 U_EXPORT2
+u_totitle(UChar32 c);
+
+/**
+ * The given character is mapped to its case folding equivalent according to
+ * UnicodeData.txt and CaseFolding.txt;
+ * if the character has no case folding equivalent, the character
+ * itself is returned.
+ *
+ * This function only returns the simple, single-code point case mapping.
+ * Full case mappings should be used whenever possible because they produce
+ * better results by working on whole strings.
+ * They take into account the string context and the language and can map
+ * to a result string with a different length as appropriate.
+ * Full case mappings are applied by the string case mapping functions,
+ * see ustring.h and the UnicodeString class.
+ * See also the User Guide chapter on C/POSIX migration:
+ * http://icu-project.org/userguide/posix.html#case_mappings
+ *
+ * @param c the code point to be mapped
+ * @param options Either U_FOLD_CASE_DEFAULT or U_FOLD_CASE_EXCLUDE_SPECIAL_I
+ * @return the Simple_Case_Folding of the code point, if any;
+ *         otherwise the code point itself.
+ * @stable ICU 2.0
+ */
+U_STABLE UChar32 U_EXPORT2
+u_foldCase(UChar32 c, uint32_t options);
+
+/**
+ * Returns the decimal digit value of the code point in the
+ * specified radix.
+ *
+ * If the radix is not in the range <code>2<=radix<=36</code> or if the
+ * value of <code>c</code> is not a valid digit in the specified
+ * radix, <code>-1</code> is returned. A character is a valid digit
+ * if at least one of the following is true:
+ * <ul>
+ * <li>The character has a decimal digit value.
+ *     Such characters have the general category "Nd" (decimal digit numbers)
+ *     and a Numeric_Type of Decimal.
+ *     In this case the value is the character's decimal digit value.</li>
+ * <li>The character is one of the uppercase Latin letters
+ *     <code>'A'</code> through <code>'Z'</code>.
+ *     In this case the value is <code>c-'A'+10</code>.</li>
+ * <li>The character is one of the lowercase Latin letters
+ *     <code>'a'</code> through <code>'z'</code>.
+ *     In this case the value is <code>ch-'a'+10</code>.</li>
+ * <li>Latin letters from both the ASCII range (0061..007A, 0041..005A)
+ *     as well as from the Fullwidth ASCII range (FF41..FF5A, FF21..FF3A)
+ *     are recognized.</li>
+ * </ul>
+ *
+ * Same as java.lang.Character.digit().
+ *
+ * @param   ch      the code point to be tested.
+ * @param   radix   the radix.
+ * @return  the numeric value represented by the character in the
+ *          specified radix,
+ *          or -1 if there is no value or if the value exceeds the radix.
+ *
+ * @see     UCHAR_NUMERIC_TYPE
+ * @see     u_forDigit
+ * @see     u_charDigitValue
+ * @see     u_isdigit
+ * @stable ICU 2.0
+ */
+U_STABLE int32_t U_EXPORT2
+u_digit(UChar32 ch, int8_t radix);
+
+/**
+ * Determines the character representation for a specific digit in
+ * the specified radix. If the value of <code>radix</code> is not a
+ * valid radix, or the value of <code>digit</code> is not a valid
+ * digit in the specified radix, the null character
+ * (<code>U+0000</code>) is returned.
+ * <p>
+ * The <code>radix</code> argument is valid if it is greater than or
+ * equal to 2 and less than or equal to 36.
+ * The <code>digit</code> argument is valid if
+ * <code>0 <= digit < radix</code>.
+ * <p>
+ * If the digit is less than 10, then
+ * <code>'0' + digit</code> is returned. Otherwise, the value
+ * <code>'a' + digit - 10</code> is returned.
+ *
+ * Same as java.lang.Character.forDigit().
+ *
+ * @param   digit   the number to convert to a character.
+ * @param   radix   the radix.
+ * @return  the <code>char</code> representation of the specified digit
+ *          in the specified radix.
+ *
+ * @see     u_digit
+ * @see     u_charDigitValue
+ * @see     u_isdigit
+ * @stable ICU 2.0
+ */
+U_STABLE UChar32 U_EXPORT2
+u_forDigit(int32_t digit, int8_t radix);
+
+/**
+ * Get the "age" of the code point.
+ * The "age" is the Unicode version when the code point was first
+ * designated (as a non-character or for Private Use)
+ * or assigned a character.
+ * This can be useful to avoid emitting code points to receiving
+ * processes that do not accept newer characters.
+ * The data is from the UCD file DerivedAge.txt.
+ *
+ * @param c The code point.
+ * @param versionArray The Unicode version number array, to be filled in.
+ *
+ * @stable ICU 2.1
+ */
+U_STABLE void U_EXPORT2
+u_charAge(UChar32 c, UVersionInfo versionArray);
+
+/**
+ * Gets the Unicode version information.
+ * The version array is filled in with the version information
+ * for the Unicode standard that is currently used by ICU.
+ * For example, Unicode version 3.1.1 is represented as an array with
+ * the values { 3, 1, 1, 0 }.
+ *
+ * @param versionArray an output array that will be filled in with
+ *                     the Unicode version number
+ * @stable ICU 2.0
+ */
+U_STABLE void U_EXPORT2
+u_getUnicodeVersion(UVersionInfo versionArray);
+
+#if !UCONFIG_NO_NORMALIZATION
+/**
+ * Get the FC_NFKC_Closure property string for a character.
+ * See Unicode Standard Annex #15 for details, search for "FC_NFKC_Closure"
+ * or for "FNC": http://www.unicode.org/reports/tr15/
+ *
+ * @param c The character (code point) for which to get the FC_NFKC_Closure string.
+ *             It must be <code>0<=c<=0x10ffff</code>.
+ * @param dest Destination address for copying the string.
+ *             The string will be zero-terminated if possible.
+ *             If there is no FC_NFKC_Closure string,
+ *             then the buffer will be set to the empty string.
+ * @param destCapacity <code>==sizeof(dest)</code>
+ * @param pErrorCode Pointer to a UErrorCode variable.
+ * @return The length of the string, or 0 if there is no FC_NFKC_Closure string for this character.
+ *         If the destCapacity is less than or equal to the length, then the buffer
+ *         contains the truncated name and the returned length indicates the full
+ *         length of the name.
+ *         The length does not include the zero-termination.
+ *
+ * @stable ICU 2.2
+ */
+U_STABLE int32_t U_EXPORT2
+u_getFC_NFKC_Closure(UChar32 c, UChar *dest, int32_t destCapacity, UErrorCode *pErrorCode);
+
+#endif
+
+
+U_CDECL_END
+
+#endif /*_UCHAR*/
+/*eof*/
diff --git a/vendor/icu/include/unicode/uclean.h b/vendor/icu/include/unicode/uclean.h
new file mode 100644
index 0000000000..f685b6581a
--- /dev/null
+++ b/vendor/icu/include/unicode/uclean.h
@@ -0,0 +1,262 @@
+// © 2016 and later: Unicode, Inc. and others.
+// License & terms of use: http://www.unicode.org/copyright.html
+/*
+******************************************************************************
+* Copyright (C) 2001-2014, International Business Machines
+*                Corporation and others. All Rights Reserved.
+******************************************************************************
+*   file name:  uclean.h
+*   encoding:   UTF-8
+*   tab size:   8 (not used)
+*   indentation:4
+*
+*   created on: 2001July05
+*   created by: George Rhoten
+*/
+
+#ifndef __UCLEAN_H__
+#define __UCLEAN_H__
+
+#include <unicode/utypes.h>
+/**
+ * \file
+ * \brief C API: Initialize and clean up ICU
+ */
+ 
+/**
+ *  Initialize ICU.
+ *
+ *  Use of this function is optional.  It is OK to simply use ICU
+ *  services and functions without first having initialized
+ *  ICU by calling u_init().
+ *
+ *  u_init() will attempt to load some part of ICU's data, and is
+ *  useful as a test for configuration or installation problems that
+ *  leave the ICU data inaccessible.  A successful invocation of u_init()
+ *  does not, however, guarantee that all ICU data is accessible.
+ *
+ *  Multiple calls to u_init() cause no harm, aside from the small amount
+ *  of time required.
+ *
+ *  In old versions of ICU, u_init() was required in multi-threaded applications
+ *  to ensure the thread safety of ICU.  u_init() is no longer needed for this purpose.
+ *
+ * @param status An ICU UErrorCode parameter. It must not be <code>NULL</code>.
+ *    An Error will be returned if some required part of ICU data can not
+ *    be loaded or initialized.
+ *    The function returns immediately if the input error code indicates a
+ *    failure, as usual.
+ *
+ * @stable ICU 2.6
+ */  
+U_STABLE void U_EXPORT2 
+u_init(UErrorCode *status);
+
+#ifndef U_HIDE_SYSTEM_API
+/**
+ * Clean up the system resources, such as allocated memory or open files,
+ * used in all ICU libraries. This will free/delete all memory owned by the
+ * ICU libraries, and return them to their original load state. All open ICU
+ * items (collators, resource bundles, converters, etc.) must be closed before
+ * calling this function, otherwise ICU may not free its allocated memory
+ * (e.g. close your converters and resource bundles before calling this
+ * function). Generally, this function should be called once just before
+ * an application exits. For applications that dynamically load and unload
+ * the ICU libraries (relatively uncommon), u_cleanup() should be called
+ * just before the library unload.
+ * <p>
+ * u_cleanup() also clears any ICU heap functions, mutex functions or
+ * trace functions that may have been set for the process.  
+ * This has the effect of restoring ICU to its initial condition, before
+ * any of these override functions were installed.  Refer to
+ * u_setMemoryFunctions(), u_setMutexFunctions and 
+ * utrace_setFunctions().  If ICU is to be reinitialized after
+ * calling u_cleanup(), these runtime override functions will need to
+ * be set up again if they are still required.
+ * <p>
+ * u_cleanup() is not thread safe.  All other threads should stop using ICU
+ * before calling this function.
+ * <p>
+ * Any open ICU items will be left in an undefined state by u_cleanup(),
+ * and any subsequent attempt to use such an item will give unpredictable
+ * results.
+ * <p>
+ * After calling u_cleanup(), an application may continue to use ICU by
+ * calling u_init().  An application must invoke u_init() first from one single
+ * thread before allowing other threads call u_init().  All threads existing
+ * at the time of the first thread's call to u_init() must also call
+ * u_init() themselves before continuing with other ICU operations.  
+ * <p>
+ * The use of u_cleanup() just before an application terminates is optional,
+ * but it should be called only once for performance reasons. The primary
+ * benefit is to eliminate reports of memory or resource leaks originating
+ * in ICU code from the results generated by heap analysis tools.
+ * <p>
+ * <strong>Use this function with great care!</strong>
+ * </p>
+ *
+ * @stable ICU 2.0
+ * @system
+ */
+U_STABLE void U_EXPORT2 
+u_cleanup(void);
+
+U_CDECL_BEGIN
+/**
+  *  Pointer type for a user supplied memory allocation function.
+  *  @param context user supplied value, obtained from u_setMemoryFunctions().
+  *  @param size    The number of bytes to be allocated
+  *  @return        Pointer to the newly allocated memory, or NULL if the allocation failed.
+  *  @stable ICU 2.8
+  *  @system
+  */
+typedef void *U_CALLCONV UMemAllocFn(const void *context, size_t size);
+/**
+  *  Pointer type for a user supplied memory re-allocation function.
+  *  @param context user supplied value, obtained from u_setMemoryFunctions().
+  *  @param size    The number of bytes to be allocated
+  *  @return        Pointer to the newly allocated memory, or NULL if the allocation failed.
+  *  @stable ICU 2.8
+  *  @system
+  */
+typedef void *U_CALLCONV UMemReallocFn(const void *context, void *mem, size_t size);
+/**
+  *  Pointer type for a user supplied memory free  function.  Behavior should be
+  *  similar the standard C library free().
+  *  @param context user supplied value, obtained from u_setMemoryFunctions().
+  *  @param mem     Pointer to the memory block to be resized
+  *  @param size    The new size for the block
+  *  @return        Pointer to the resized memory block, or NULL if the resizing failed.
+  *  @stable ICU 2.8
+  *  @system
+  */
+typedef void  U_CALLCONV UMemFreeFn (const void *context, void *mem);
+
+/**
+ *  Set the functions that ICU will use for memory allocation.
+ *  Use of this function is optional; by default (without this function), ICU will
+ *  use the standard C library malloc() and free() functions.
+ *  This function can only be used when ICU is in an initial, unused state, before
+ *  u_init() has been called.
+ *  @param context This pointer value will be saved, and then (later) passed as
+ *                 a parameter to the memory functions each time they
+ *                 are called.
+ *  @param a       Pointer to a user-supplied malloc function.
+ *  @param r       Pointer to a user-supplied realloc function.
+ *  @param f       Pointer to a user-supplied free function.
+ *  @param status  Receives error values.
+ *  @stable ICU 2.8
+ *  @system
+ */  
+U_STABLE void U_EXPORT2 
+u_setMemoryFunctions(const void *context, UMemAllocFn * U_CALLCONV_FPTR a, UMemReallocFn * U_CALLCONV_FPTR r, UMemFreeFn * U_CALLCONV_FPTR f, 
+                    UErrorCode *status);
+
+U_CDECL_END
+
+#ifndef U_HIDE_DEPRECATED_API
+/*********************************************************************************
+ *
+ * Deprecated Functions
+ *
+ *    The following functions for user supplied mutexes are no longer supported.
+ *    Any attempt to use them will return a U_UNSUPPORTED_ERROR.
+ *
+ **********************************************************************************/
+
+/**
+  * An opaque pointer type that represents an ICU mutex.
+  * For user-implemented mutexes, the value will typically point to a
+  *  struct or object that implements the mutex.
+  * @deprecated ICU 52. This type is no longer supported.
+  * @system
+  */
+typedef void *UMTX;
+
+U_CDECL_BEGIN
+/**
+  *  Function Pointer type for a user supplied mutex initialization function.
+  *  The user-supplied function will be called by ICU whenever ICU needs to create a
+  *  new mutex.  The function implementation should create a mutex, and store a pointer
+  *  to something that uniquely identifies the mutex into the UMTX that is supplied
+  *  as a parameter.
+  *  @param context user supplied value, obtained from u_setMutexFunctions().
+  *  @param mutex   Receives a pointer that identifies the new mutex.
+  *                 The mutex init function must set the UMTX to a non-null value.   
+  *                 Subsequent calls by ICU to lock, unlock, or destroy a mutex will 
+  *                 identify the mutex by the UMTX value.
+  *  @param status  Error status.  Report errors back to ICU by setting this variable
+  *                 with an error code.
+  *  @deprecated ICU 52. This function is no longer supported.
+  *  @system
+  */
+typedef void U_CALLCONV UMtxInitFn (const void *context, UMTX  *mutex, UErrorCode* status);
+
+
+/**
+  *  Function Pointer type for a user supplied mutex functions.
+  *  One of the  user-supplied functions with this signature will be called by ICU
+  *  whenever ICU needs to lock, unlock, or destroy a mutex.
+  *  @param context user supplied value, obtained from u_setMutexFunctions().
+  *  @param mutex   specify the mutex on which to operate.
+  *  @deprecated ICU 52. This function is no longer supported.
+  *  @system
+  */
+typedef void U_CALLCONV UMtxFn   (const void *context, UMTX  *mutex);
+U_CDECL_END
+
+/**
+  *  Set the functions that ICU will use for mutex operations
+  *  Use of this function is optional; by default (without this function), ICU will
+  *  directly access system functions for mutex operations
+  *  This function can only be used when ICU is in an initial, unused state, before
+  *  u_init() has been called.
+  *  @param context This pointer value will be saved, and then (later) passed as
+  *                 a parameter to the user-supplied mutex functions each time they
+  *                 are called. 
+  *  @param init    Pointer to a mutex initialization function.  Must be non-null.
+  *  @param destroy Pointer to the mutex destroy function.  Must be non-null.
+  *  @param lock    pointer to the mutex lock function.  Must be non-null.
+  *  @param unlock  Pointer to the mutex unlock function.  Must be non-null.
+  *  @param status  Receives error values.
+  *  @deprecated ICU 52. This function is no longer supported.
+  *  @system
+  */  
+U_DEPRECATED void U_EXPORT2 
+u_setMutexFunctions(const void *context, UMtxInitFn *init, UMtxFn *destroy, UMtxFn *lock, UMtxFn *unlock,
+                    UErrorCode *status);
+
+
+/**
+  *  Pointer type for a user supplied atomic increment or decrement function.
+  *  @param context user supplied value, obtained from u_setAtomicIncDecFunctions().
+  *  @param p   Pointer to a 32 bit int to be incremented or decremented
+  *  @return    The value of the variable after the inc or dec operation.
+  *  @deprecated ICU 52. This function is no longer supported.
+  *  @system
+  */
+typedef int32_t U_CALLCONV UMtxAtomicFn(const void *context, int32_t *p);
+
+/**
+ *  Set the functions that ICU will use for atomic increment and decrement of int32_t values.
+ *  Use of this function is optional; by default (without this function), ICU will
+ *  use its own internal implementation of atomic increment/decrement.
+ *  This function can only be used when ICU is in an initial, unused state, before
+ *  u_init() has been called.
+ *  @param context This pointer value will be saved, and then (later) passed as
+ *                 a parameter to the increment and decrement functions each time they
+ *                 are called.  This function can only be called 
+ *  @param inc     Pointer to a function to do an atomic increment operation.  Must be non-null.
+ *  @param dec     Pointer to a function to do an atomic decrement operation.  Must be non-null.
+ *  @param status  Receives error values.
+ *  @deprecated ICU 52. This function is no longer supported.
+ *  @system
+ */  
+U_DEPRECATED void U_EXPORT2 
+u_setAtomicIncDecFunctions(const void *context, UMtxAtomicFn *inc, UMtxAtomicFn *dec,
+                    UErrorCode *status);
+
+#endif  /* U_HIDE_DEPRECATED_API */
+#endif  /* U_HIDE_SYSTEM_API */
+
+#endif
diff --git a/vendor/icu/include/unicode/uconfig.h b/vendor/icu/include/unicode/uconfig.h
new file mode 100644
index 0000000000..7ddf4e6adf
--- /dev/null
+++ b/vendor/icu/include/unicode/uconfig.h
@@ -0,0 +1,455 @@
+// © 2016 and later: Unicode, Inc. and others.
+// License & terms of use: http://www.unicode.org/copyright.html
+/*  
+**********************************************************************
+*   Copyright (C) 2002-2016, International Business Machines
+*   Corporation and others.  All Rights Reserved.
+**********************************************************************
+*   file name:  uconfig.h
+*   encoding:   UTF-8
+*   tab size:   8 (not used)
+*   indentation:4
+*
+*   created on: 2002sep19
+*   created by: Markus W. Scherer
+*/
+
+#ifndef __UCONFIG_H__
+#define __UCONFIG_H__
+
+
+/*!
+ * \file
+ * \brief User-configurable settings
+ *
+ * Miscellaneous switches:
+ *
+ * A number of macros affect a variety of minor aspects of ICU.
+ * Most of them used to be defined elsewhere (e.g., in utypes.h or platform.h)
+ * and moved here to make them easier to find.
+ *
+ * Switches for excluding parts of ICU library code modules:
+ *
+ * Changing these macros allows building partial, smaller libraries for special purposes.
+ * By default, all modules are built.
+ * The switches are fairly coarse, controlling large modules.
+ * Basic services cannot be turned off.
+ *
+ * Building with any of these options does not guarantee that the
+ * ICU build process will completely work. It is recommended that
+ * the ICU libraries and data be built using the normal build.
+ * At that time you should remove the data used by those services.
+ * After building the ICU data library, you should rebuild the ICU
+ * libraries with these switches customized to your needs.
+ *
+ * @stable ICU 2.4
+ */
+
+/**
+ * If this switch is defined, ICU will attempt to load a header file named "uconfig_local.h"
+ * prior to determining default settings for uconfig variables.
+ *
+ * @internal ICU 4.0
+ */
+#if defined(UCONFIG_USE_LOCAL)
+#include "uconfig_local.h"
+#endif
+
+/**
+ * \def U_DEBUG
+ * Determines whether to include debugging code.
+ * Automatically set on Windows, but most compilers do not have
+ * related predefined macros.
+ * @internal
+ */
+#ifdef U_DEBUG
+    /* Use the predefined value. */
+#elif defined(_DEBUG)
+    /*
+     * _DEBUG is defined by Visual Studio debug compilation.
+     * Do *not* test for its NDEBUG macro: It is an orthogonal macro
+     * which disables assert().
+     */
+#   define U_DEBUG 1
+# else
+#   define U_DEBUG 0
+#endif
+
+/**
+ * Determines whether to enable auto cleanup of libraries. 
+ * @internal
+ */
+#ifndef UCLN_NO_AUTO_CLEANUP
+#define UCLN_NO_AUTO_CLEANUP 1
+#endif
+
+/**
+ * \def U_DISABLE_RENAMING
+ * Determines whether to disable renaming or not.
+ * @internal
+ */
+#ifndef U_DISABLE_RENAMING
+#define U_DISABLE_RENAMING 0
+#endif
+
+/**
+ * \def U_NO_DEFAULT_INCLUDE_UTF_HEADERS
+ * Determines whether utypes.h includes utf.h, utf8.h, utf16.h and utf_old.h.
+ * utypes.h includes those headers if this macro is defined to 0.
+ * Otherwise, each those headers must be included explicitly when using one of their macros.
+ * Defaults to 0 for backward compatibility, except inside ICU.
+ * @stable ICU 49
+ */
+#ifdef U_NO_DEFAULT_INCLUDE_UTF_HEADERS
+    /* Use the predefined value. */
+#elif defined(U_COMBINED_IMPLEMENTATION) || defined(U_COMMON_IMPLEMENTATION) || defined(U_I18N_IMPLEMENTATION) || \
+      defined(U_IO_IMPLEMENTATION) || defined(U_LAYOUT_IMPLEMENTATION) || defined(U_LAYOUTEX_IMPLEMENTATION) || \
+      defined(U_TOOLUTIL_IMPLEMENTATION)
+#   define U_NO_DEFAULT_INCLUDE_UTF_HEADERS 1
+#else
+#   define U_NO_DEFAULT_INCLUDE_UTF_HEADERS 0
+#endif
+
+/**
+ * \def U_OVERRIDE_CXX_ALLOCATION
+ * Determines whether to override new and delete.
+ * ICU is normally built such that all of its C++ classes, via their UMemory base,
+ * override operators new and delete to use its internal, customizable,
+ * non-exception-throwing memory allocation functions. (Default value 1 for this macro.)
+ *
+ * This is especially important when the application and its libraries use multiple heaps.
+ * For example, on Windows, this allows the ICU DLL to be used by
+ * applications that statically link the C Runtime library.
+ *
+ * @stable ICU 2.2
+ */
+#ifndef U_OVERRIDE_CXX_ALLOCATION
+#define U_OVERRIDE_CXX_ALLOCATION 1
+#endif
+
+/**
+ * \def U_ENABLE_TRACING
+ * Determines whether to enable tracing.
+ * @internal
+ */
+#ifndef U_ENABLE_TRACING
+#define U_ENABLE_TRACING 0
+#endif
+
+/**
+ * \def UCONFIG_ENABLE_PLUGINS
+ * Determines whether to enable ICU plugins.
+ * @internal
+ */
+#ifndef UCONFIG_ENABLE_PLUGINS
+#define UCONFIG_ENABLE_PLUGINS 0
+#endif
+
+/**
+ * \def U_ENABLE_DYLOAD
+ * Whether to enable Dynamic loading in ICU.
+ * @internal
+ */
+#ifndef U_ENABLE_DYLOAD
+#define U_ENABLE_DYLOAD 1
+#endif
+
+/**
+ * \def U_CHECK_DYLOAD
+ * Whether to test Dynamic loading as an OS capability.
+ * @internal
+ */
+#ifndef U_CHECK_DYLOAD
+#define U_CHECK_DYLOAD 1
+#endif
+
+/**
+ * \def U_DEFAULT_SHOW_DRAFT
+ * Do we allow ICU users to use the draft APIs by default?
+ * @internal
+ */
+#ifndef U_DEFAULT_SHOW_DRAFT
+#define U_DEFAULT_SHOW_DRAFT 1
+#endif
+
+/*===========================================================================*/
+/* Custom icu entry point renaming                                           */
+/*===========================================================================*/
+
+/**
+ * \def U_HAVE_LIB_SUFFIX
+ * 1 if a custom library suffix is set.
+ * @internal
+ */
+#ifdef U_HAVE_LIB_SUFFIX
+    /* Use the predefined value. */
+#elif defined(U_LIB_SUFFIX_C_NAME)
+#   define U_HAVE_LIB_SUFFIX 1
+#endif
+
+/**
+ * \def U_LIB_SUFFIX_C_NAME_STRING
+ * Defines the library suffix as a string with C syntax.
+ * @internal
+ */
+#ifdef U_LIB_SUFFIX_C_NAME_STRING
+    /* Use the predefined value. */
+#elif defined(U_LIB_SUFFIX_C_NAME)
+#   define CONVERT_TO_STRING(s) #s
+#   define U_LIB_SUFFIX_C_NAME_STRING CONVERT_TO_STRING(U_LIB_SUFFIX_C_NAME)
+#else
+#   define U_LIB_SUFFIX_C_NAME_STRING ""
+#endif
+
+/* common/i18n library switches --------------------------------------------- */
+
+/**
+ * \def UCONFIG_ONLY_COLLATION
+ * This switch turns off modules that are not needed for collation.
+ *
+ * It does not turn off legacy conversion because that is necessary
+ * for ICU to work on EBCDIC platforms (for the default converter).
+ * If you want "only collation" and do not build for EBCDIC,
+ * then you can define UCONFIG_NO_CONVERSION or UCONFIG_NO_LEGACY_CONVERSION to 1 as well.
+ *
+ * @stable ICU 2.4
+ */
+#ifndef UCONFIG_ONLY_COLLATION
+#   define UCONFIG_ONLY_COLLATION 0
+#endif
+
+#if UCONFIG_ONLY_COLLATION
+    /* common library */
+#   define UCONFIG_NO_BREAK_ITERATION 1
+#   define UCONFIG_NO_IDNA 1
+
+    /* i18n library */
+#   if UCONFIG_NO_COLLATION
+#       error Contradictory collation switches in uconfig.h.
+#   endif
+#   define UCONFIG_NO_FORMATTING 1
+#   define UCONFIG_NO_TRANSLITERATION 1
+#   define UCONFIG_NO_REGULAR_EXPRESSIONS 1
+#endif
+
+/* common library switches -------------------------------------------------- */
+
+/**
+ * \def UCONFIG_NO_FILE_IO
+ * This switch turns off all file access in the common library
+ * where file access is only used for data loading.
+ * ICU data must then be provided in the form of a data DLL (or with an
+ * equivalent way to link to the data residing in an executable,
+ * as in building a combined library with both the common library's code and
+ * the data), or via udata_setCommonData().
+ * Application data must be provided via udata_setAppData() or by using
+ * "open" functions that take pointers to data, for example ucol_openBinary().
+ *
+ * File access is not used at all in the i18n library.
+ *
+ * File access cannot be turned off for the icuio library or for the ICU
+ * test suites and ICU tools.
+ *
+ * @stable ICU 3.6
+ */
+#ifndef UCONFIG_NO_FILE_IO
+#   define UCONFIG_NO_FILE_IO 0
+#endif
+
+#if UCONFIG_NO_FILE_IO && defined(U_TIMEZONE_FILES_DIR) 
+#   error Contradictory file io switches in uconfig.h.
+#endif
+
+/**
+ * \def UCONFIG_NO_CONVERSION
+ * ICU will not completely build (compiling the tools fails) with this
+ * switch turned on.
+ * This switch turns off all converters.
+ *
+ * You may want to use this together with U_CHARSET_IS_UTF8 defined to 1
+ * in utypes.h if char* strings in your environment are always in UTF-8.
+ *
+ * @stable ICU 3.2
+ * @see U_CHARSET_IS_UTF8
+ */
+#ifndef UCONFIG_NO_CONVERSION
+#   define UCONFIG_NO_CONVERSION 0
+#endif
+
+#if UCONFIG_NO_CONVERSION
+#   define UCONFIG_NO_LEGACY_CONVERSION 1
+#endif
+
+/**
+ * \def UCONFIG_ONLY_HTML_CONVERSION
+ * This switch turns off all of the converters NOT listed in
+ * the HTML encoding standard:
+ * http://www.w3.org/TR/encoding/#names-and-labels
+ *
+ * This is not possible on EBCDIC platforms
+ * because they need ibm-37 or ibm-1047 default converters.
+ *
+ * @stable ICU 55
+ */
+#ifndef UCONFIG_ONLY_HTML_CONVERSION
+#   define UCONFIG_ONLY_HTML_CONVERSION 0
+#endif
+
+/**
+ * \def UCONFIG_NO_LEGACY_CONVERSION
+ * This switch turns off all converters except for
+ * - Unicode charsets (UTF-7/8/16/32, CESU-8, SCSU, BOCU-1)
+ * - US-ASCII
+ * - ISO-8859-1
+ *
+ * Turning off legacy conversion is not possible on EBCDIC platforms
+ * because they need ibm-37 or ibm-1047 default converters.
+ *
+ * @stable ICU 2.4
+ */
+#ifndef UCONFIG_NO_LEGACY_CONVERSION
+#   define UCONFIG_NO_LEGACY_CONVERSION 0
+#endif
+
+/**
+ * \def UCONFIG_NO_NORMALIZATION
+ * This switch turns off normalization.
+ * It implies turning off several other services as well, for example
+ * collation and IDNA.
+ *
+ * @stable ICU 2.6
+ */
+#ifndef UCONFIG_NO_NORMALIZATION
+#   define UCONFIG_NO_NORMALIZATION 0
+#endif
+
+#if UCONFIG_NO_NORMALIZATION
+    /* common library */
+    /* ICU 50 CJK dictionary BreakIterator uses normalization */
+#   define UCONFIG_NO_BREAK_ITERATION 1
+    /* IDNA (UTS #46) is implemented via normalization */
+#   define UCONFIG_NO_IDNA 1
+
+    /* i18n library */
+#   if UCONFIG_ONLY_COLLATION
+#       error Contradictory collation switches in uconfig.h.
+#   endif
+#   define UCONFIG_NO_COLLATION 1
+#   define UCONFIG_NO_TRANSLITERATION 1
+#endif
+
+/**
+ * \def UCONFIG_NO_BREAK_ITERATION
+ * This switch turns off break iteration.
+ *
+ * @stable ICU 2.4
+ */
+#ifndef UCONFIG_NO_BREAK_ITERATION
+#   define UCONFIG_NO_BREAK_ITERATION 0
+#endif
+
+/**
+ * \def UCONFIG_NO_IDNA
+ * This switch turns off IDNA.
+ *
+ * @stable ICU 2.6
+ */
+#ifndef UCONFIG_NO_IDNA
+#   define UCONFIG_NO_IDNA 0
+#endif
+
+/**
+ * \def UCONFIG_MSGPAT_DEFAULT_APOSTROPHE_MODE
+ * Determines the default UMessagePatternApostropheMode.
+ * See the documentation for that enum.
+ *
+ * @stable ICU 4.8
+ */
+#ifndef UCONFIG_MSGPAT_DEFAULT_APOSTROPHE_MODE
+#   define UCONFIG_MSGPAT_DEFAULT_APOSTROPHE_MODE UMSGPAT_APOS_DOUBLE_OPTIONAL
+#endif
+
+/* i18n library switches ---------------------------------------------------- */
+
+/**
+ * \def UCONFIG_NO_COLLATION
+ * This switch turns off collation and collation-based string search.
+ *
+ * @stable ICU 2.4
+ */
+#ifndef UCONFIG_NO_COLLATION
+#   define UCONFIG_NO_COLLATION 0
+#endif
+
+/**
+ * \def UCONFIG_NO_FORMATTING
+ * This switch turns off formatting and calendar/timezone services.
+ *
+ * @stable ICU 2.4
+ */
+#ifndef UCONFIG_NO_FORMATTING
+#   define UCONFIG_NO_FORMATTING 0
+#endif
+
+/**
+ * \def UCONFIG_NO_TRANSLITERATION
+ * This switch turns off transliteration.
+ *
+ * @stable ICU 2.4
+ */
+#ifndef UCONFIG_NO_TRANSLITERATION
+#   define UCONFIG_NO_TRANSLITERATION 0
+#endif
+
+/**
+ * \def UCONFIG_NO_REGULAR_EXPRESSIONS
+ * This switch turns off regular expressions.
+ *
+ * @stable ICU 2.4
+ */
+#ifndef UCONFIG_NO_REGULAR_EXPRESSIONS
+#   define UCONFIG_NO_REGULAR_EXPRESSIONS 0
+#endif
+
+/**
+ * \def UCONFIG_NO_SERVICE
+ * This switch turns off service registration.
+ *
+ * @stable ICU 3.2
+ */
+#ifndef UCONFIG_NO_SERVICE
+#   define UCONFIG_NO_SERVICE 0
+#endif
+
+/**
+ * \def UCONFIG_HAVE_PARSEALLINPUT
+ * This switch turns on the "parse all input" attribute. Binary incompatible.
+ *
+ * @internal
+ */
+#ifndef UCONFIG_HAVE_PARSEALLINPUT
+#   define UCONFIG_HAVE_PARSEALLINPUT 1
+#endif
+
+
+/**
+ * \def UCONFIG_FORMAT_FASTPATHS_49
+ * This switch turns on other formatting fastpaths. Binary incompatible in object DecimalFormat and DecimalFormatSymbols
+ *
+ * @internal
+ */
+#ifndef UCONFIG_FORMAT_FASTPATHS_49
+#   define UCONFIG_FORMAT_FASTPATHS_49 1
+#endif
+
+/**
+ * \def UCONFIG_NO_FILTERED_BREAK_ITERATION
+ * This switch turns off filtered break iteration code.
+ *
+ * @internal
+ */
+#ifndef UCONFIG_NO_FILTERED_BREAK_ITERATION
+#   define UCONFIG_NO_FILTERED_BREAK_ITERATION 0
+#endif
+
+#endif
diff --git a/vendor/icu/include/unicode/udata.h b/vendor/icu/include/unicode/udata.h
new file mode 100644
index 0000000000..0106be0c93
--- /dev/null
+++ b/vendor/icu/include/unicode/udata.h
@@ -0,0 +1,437 @@
+// © 2016 and later: Unicode, Inc. and others.
+// License & terms of use: http://www.unicode.org/copyright.html
+/*
+******************************************************************************
+*
+*   Copyright (C) 1999-2014, International Business Machines
+*   Corporation and others.  All Rights Reserved.
+*
+******************************************************************************
+*   file name:  udata.h
+*   encoding:   UTF-8
+*   tab size:   8 (not used)
+*   indentation:4
+*
+*   created on: 1999oct25
+*   created by: Markus W. Scherer
+*/
+
+#ifndef __UDATA_H__
+#define __UDATA_H__
+
+#include <unicode/utypes.h>
+#include <unicode/localpointer.h>
+
+U_CDECL_BEGIN
+
+/**
+ * \file
+ * \brief C API: Data loading interface
+ *
+ * <h2>Information about data loading interface</h2>
+ *
+ * This API is used to find and efficiently load data for ICU and applications
+ * using ICU. It provides an abstract interface that specifies a data type and
+ * name to find and load the data. Normally this API is used by other ICU APIs
+ * to load required data out of the ICU data library, but it can be used to
+ * load data out of other places.
+ *
+ * See the User Guide Data Management chapter.
+ */
+ 
+#ifndef U_HIDE_INTERNAL_API
+/**
+ * Character used to separate package names from tree names 
+ * @internal ICU 3.0
+ */
+#define U_TREE_SEPARATOR '-'
+
+/**
+ * String used to separate package names from tree names 
+ * @internal ICU 3.0
+ */
+#define U_TREE_SEPARATOR_STRING "-"
+
+/**
+ * Character used to separate parts of entry names
+ * @internal ICU 3.0
+ */
+#define U_TREE_ENTRY_SEP_CHAR '/'
+
+/**
+ * String used to separate parts of entry names
+ * @internal ICU 3.0
+ */
+#define U_TREE_ENTRY_SEP_STRING "/"
+
+/**
+ * Alias for standard ICU data 
+ * @internal ICU 3.0
+ */
+#define U_ICUDATA_ALIAS "ICUDATA"
+
+#endif /* U_HIDE_INTERNAL_API */
+
+/**
+ * UDataInfo contains the properties about the requested data.
+ * This is meta data.
+ *
+ * <p>This structure may grow in the future, indicated by the
+ * <code>size</code> field.</p>
+ *
+ * <p>ICU data must be at least 8-aligned, and should be 16-aligned.
+ * The UDataInfo struct begins 4 bytes after the start of the data item,
+ * so it is 4-aligned.
+ *
+ * <p>The platform data property fields help determine if a data
+ * file can be efficiently used on a given machine.
+ * The particular fields are of importance only if the data
+ * is affected by the properties - if there is integer data
+ * with word sizes > 1 byte, char* text, or UChar* text.</p>
+ *
+ * <p>The implementation for the <code>udata_open[Choice]()</code>
+ * functions may reject data based on the value in <code>isBigEndian</code>.
+ * No other field is used by the <code>udata</code> API implementation.</p>
+ *
+ * <p>The <code>dataFormat</code> may be used to identify
+ * the kind of data, e.g. a converter table.</p>
+ *
+ * <p>The <code>formatVersion</code> field should be used to
+ * make sure that the format can be interpreted.
+ * It may be a good idea to check only for the one or two highest
+ * of the version elements to allow the data memory to
+ * get more or somewhat rearranged contents, for as long
+ * as the using code can still interpret the older contents.</p>
+ *
+ * <p>The <code>dataVersion</code> field is intended to be a
+ * common place to store the source version of the data;
+ * for data from the Unicode character database, this could
+ * reflect the Unicode version.</p>
+ *
+ * @stable ICU 2.0
+ */
+typedef struct {
+    /** sizeof(UDataInfo)
+     *  @stable ICU 2.0 */
+    uint16_t size;
+
+    /** unused, set to 0 
+     *  @stable ICU 2.0*/
+    uint16_t reservedWord;
+
+    /* platform data properties */
+    /** 0 for little-endian machine, 1 for big-endian
+     *  @stable ICU 2.0 */
+    uint8_t isBigEndian;
+
+    /** see U_CHARSET_FAMILY values in utypes.h 
+     *  @stable ICU 2.0*/
+    uint8_t charsetFamily;
+
+    /** sizeof(UChar), one of { 1, 2, 4 } 
+     *  @stable ICU 2.0*/
+    uint8_t sizeofUChar;
+
+    /** unused, set to 0 
+     *  @stable ICU 2.0*/
+    uint8_t reservedByte;
+
+    /** data format identifier 
+     *  @stable ICU 2.0*/
+    uint8_t dataFormat[4];
+
+    /** versions: [0] major [1] minor [2] milli [3] micro 
+     *  @stable ICU 2.0*/
+    uint8_t formatVersion[4];
+
+    /** versions: [0] major [1] minor [2] milli [3] micro 
+     *  @stable ICU 2.0*/
+    uint8_t dataVersion[4];
+} UDataInfo;
+
+/* API for reading data -----------------------------------------------------*/
+
+/**
+ * Forward declaration of the data memory type.
+ * @stable ICU 2.0
+ */
+typedef struct UDataMemory UDataMemory;
+
+/**
+ * Callback function for udata_openChoice().
+ * @param context parameter passed into <code>udata_openChoice()</code>.
+ * @param type The type of the data as passed into <code>udata_openChoice()</code>.
+ *             It may be <code>NULL</code>.
+ * @param name The name of the data as passed into <code>udata_openChoice()</code>.
+ * @param pInfo A pointer to the <code>UDataInfo</code> structure
+ *              of data that has been loaded and will be returned
+ *              by <code>udata_openChoice()</code> if this function
+ *              returns <code>TRUE</code>.
+ * @return TRUE if the current data memory is acceptable
+ * @stable ICU 2.0
+ */
+typedef UBool U_CALLCONV
+UDataMemoryIsAcceptable(void *context,
+                        const char *type, const char *name,
+                        const UDataInfo *pInfo);
+
+
+/**
+ * Convenience function.
+ * This function works the same as <code>udata_openChoice</code>
+ * except that any data that matches the type and name
+ * is assumed to be acceptable.
+ * @param path Specifies an absolute path and/or a basename for the
+ *             finding of the data in the file system.
+ *             <code>NULL</code> for ICU data.
+ * @param type A string that specifies the type of data to be loaded.
+ *             For example, resource bundles are loaded with type "res",
+ *             conversion tables with type "cnv".
+ *             This may be <code>NULL</code> or empty.
+ * @param name A string that specifies the name of the data.
+ * @param pErrorCode An ICU UErrorCode parameter. It must not be <code>NULL</code>.
+ * @return A pointer (handle) to a data memory object, or <code>NULL</code>
+ *         if an error occurs. Call <code>udata_getMemory()</code>
+ *         to get a pointer to the actual data.
+ *
+ * @see udata_openChoice
+ * @stable ICU 2.0
+ */
+U_STABLE UDataMemory * U_EXPORT2
+udata_open(const char *path, const char *type, const char *name,
+           UErrorCode *pErrorCode);
+
+/**
+ * Data loading function.
+ * This function is used to find and load efficiently data for
+ * ICU and applications using ICU.
+ * It provides an abstract interface that allows to specify a data
+ * type and name to find and load the data.
+ *
+ * <p>The implementation depends on platform properties and user preferences
+ * and may involve loading shared libraries (DLLs), mapping
+ * files into memory, or fopen()/fread() files.
+ * It may also involve using static memory or database queries etc.
+ * Several or all data items may be combined into one entity
+ * (DLL, memory-mappable file).</p>
+ *
+ * <p>The data is always preceded by a header that includes
+ * a <code>UDataInfo</code> structure.
+ * The caller's <code>isAcceptable()</code> function is called to make
+ * sure that the data is useful. It may be called several times if it
+ * rejects the data and there is more than one location with data
+ * matching the type and name.</p>
+ *
+ * <p>If <code>path==NULL</code>, then ICU data is loaded.
+ * Otherwise, it is separated into a basename and a basename-less directory string.
+ * The basename is used as the data package name, and the directory is
+ * logically prepended to the ICU data directory string.</p>
+ *
+ * <p>For details about ICU data loading see the User Guide
+ * Data Management chapter. (http://icu-project.org/userguide/icudata.html)</p>
+ *
+ * @param path Specifies an absolute path and/or a basename for the
+ *             finding of the data in the file system.
+ *             <code>NULL</code> for ICU data.
+ * @param type A string that specifies the type of data to be loaded.
+ *             For example, resource bundles are loaded with type "res",
+ *             conversion tables with type "cnv".
+ *             This may be <code>NULL</code> or empty.
+ * @param name A string that specifies the name of the data.
+ * @param isAcceptable This function is called to verify that loaded data
+ *                     is useful for the client code. If it returns FALSE
+ *                     for all data items, then <code>udata_openChoice()</code>
+ *                     will return with an error.
+ * @param context Arbitrary parameter to be passed into isAcceptable.
+ * @param pErrorCode An ICU UErrorCode parameter. It must not be <code>NULL</code>.
+ * @return A pointer (handle) to a data memory object, or <code>NULL</code>
+ *         if an error occurs. Call <code>udata_getMemory()</code>
+ *         to get a pointer to the actual data.
+ * @stable ICU 2.0
+ */
+U_STABLE UDataMemory * U_EXPORT2
+udata_openChoice(const char *path, const char *type, const char *name,
+                 UDataMemoryIsAcceptable *isAcceptable, void *context,
+                 UErrorCode *pErrorCode);
+
+/**
+ * Close the data memory.
+ * This function must be called to allow the system to
+ * release resources associated with this data memory.
+ * @param pData The pointer to data memory object
+ * @stable ICU 2.0
+ */
+U_STABLE void U_EXPORT2
+udata_close(UDataMemory *pData);
+
+#if U_SHOW_CPLUSPLUS_API
+
+U_NAMESPACE_BEGIN
+
+/**
+ * \class LocalUDataMemoryPointer
+ * "Smart pointer" class, closes a UDataMemory via udata_close().
+ * For most methods see the LocalPointerBase base class.
+ *
+ * @see LocalPointerBase
+ * @see LocalPointer
+ * @stable ICU 4.4
+ */
+U_DEFINE_LOCAL_OPEN_POINTER(LocalUDataMemoryPointer, UDataMemory, udata_close);
+
+U_NAMESPACE_END
+
+#endif
+
+/**
+ * Get the pointer to the actual data inside the data memory.
+ * The data is read-only.
+ *
+ * ICU data must be at least 8-aligned, and should be 16-aligned.
+ *
+ * @param pData The pointer to data memory object
+ * @stable ICU 2.0
+ */
+U_STABLE const void * U_EXPORT2
+udata_getMemory(UDataMemory *pData);
+
+/**
+ * Get the information from the data memory header.
+ * This allows to get access to the header containing
+ * platform data properties etc. which is not part of
+ * the data itself and can therefore not be accessed
+ * via the pointer that <code>udata_getMemory()</code> returns.
+ *
+ * @param pData pointer to the data memory object
+ * @param pInfo pointer to a UDataInfo object;
+ *              its <code>size</code> field must be set correctly,
+ *              typically to <code>sizeof(UDataInfo)</code>.
+ *
+ * <code>*pInfo</code> will be filled with the UDataInfo structure
+ * in the data memory object. If this structure is smaller than
+ * <code>pInfo->size</code>, then the <code>size</code> will be
+ * adjusted and only part of the structure will be filled.
+ * @stable ICU 2.0
+ */
+U_STABLE void U_EXPORT2
+udata_getInfo(UDataMemory *pData, UDataInfo *pInfo);
+
+/**
+ * This function bypasses the normal ICU data loading process and
+ * allows you to force ICU's system data to come out of a user-specified
+ * area in memory.
+ *
+ * ICU data must be at least 8-aligned, and should be 16-aligned.
+ * See http://userguide.icu-project.org/icudata
+ *
+ * The format of this data is that of the icu common data file, as is
+ * generated by the pkgdata tool with mode=common or mode=dll.
+ * You can read in a whole common mode file and pass the address to the start of the
+ * data, or (with the appropriate link options) pass in the pointer to
+ * the data that has been loaded from a dll by the operating system,
+ * as shown in this code:
+ *
+ *       extern const char U_IMPORT U_ICUDATA_ENTRY_POINT [];
+ *        // U_ICUDATA_ENTRY_POINT is same as entry point specified to pkgdata tool
+ *       UErrorCode  status = U_ZERO_ERROR;
+ *
+ *       udata_setCommonData(&U_ICUDATA_ENTRY_POINT, &status);
+ *
+ * It is important that the declaration be as above. The entry point
+ * must not be declared as an extern void*.
+ *
+ * Starting with ICU 4.4, it is possible to set several data packages,
+ * one per call to this function.
+ * udata_open() will look for data in the multiple data packages in the order
+ * in which they were set.
+ * The position of the linked-in or default-name ICU .data package in the
+ * search list depends on when the first data item is loaded that is not contained
+ * in the already explicitly set packages.
+ * If data was loaded implicitly before the first call to this function
+ * (for example, via opening a converter, constructing a UnicodeString
+ * from default-codepage data, using formatting or collation APIs, etc.),
+ * then the default data will be first in the list.
+ *
+ * This function has no effect on application (non ICU) data.  See udata_setAppData()
+ * for similar functionality for application data.
+ *
+ * @param data pointer to ICU common data
+ * @param err outgoing error status <code>U_USING_DEFAULT_WARNING, U_UNSUPPORTED_ERROR</code>
+ * @stable ICU 2.0
+ */
+U_STABLE void U_EXPORT2
+udata_setCommonData(const void *data, UErrorCode *err);
+
+
+/**
+ * This function bypasses the normal ICU data loading process for application-specific
+ * data and allows you to force the it to come out of a user-specified
+ * pointer.
+ *
+ * ICU data must be at least 8-aligned, and should be 16-aligned.
+ * See http://userguide.icu-project.org/icudata
+ *
+ * The format of this data is that of the icu common data file, like 'icudt26l.dat'
+ * or the corresponding shared library (DLL) file.
+ * The application must read in or otherwise construct an image of the data and then
+ * pass the address of it to this function.
+ *
+ *
+ * Warning:  setAppData will set a U_USING_DEFAULT_WARNING code if
+ *           data with the specifed path that has already been opened, or
+ *           if setAppData with the same path has already been called.
+ *           Any such calls to setAppData will have no effect.
+ *
+ *
+ * @param packageName the package name by which the application will refer
+ *             to (open) this data
+ * @param data pointer to the data
+ * @param err outgoing error status <code>U_USING_DEFAULT_WARNING, U_UNSUPPORTED_ERROR</code>
+ * @see udata_setCommonData
+ * @stable ICU 2.0
+ */
+U_STABLE void U_EXPORT2
+udata_setAppData(const char *packageName, const void *data, UErrorCode *err);
+
+/**
+ * Possible settings for udata_setFileAccess()
+ * @see udata_setFileAccess
+ * @stable ICU 3.4
+ */
+typedef enum UDataFileAccess {
+    /** ICU looks for data in single files first, then in packages. (default) @stable ICU 3.4 */
+    UDATA_FILES_FIRST,
+    /** An alias for the default access mode. @stable ICU 3.4 */
+    UDATA_DEFAULT_ACCESS = UDATA_FILES_FIRST,
+    /** ICU only loads data from packages, not from single files. @stable ICU 3.4 */
+    UDATA_ONLY_PACKAGES,
+    /** ICU loads data from packages first, and only from single files
+        if the data cannot be found in a package. @stable ICU 3.4 */
+    UDATA_PACKAGES_FIRST,
+    /** ICU does not access the file system for data loading. @stable ICU 3.4 */
+    UDATA_NO_FILES,
+#ifndef U_HIDE_DEPRECATED_API
+    /**
+     * Number of real UDataFileAccess values.
+     * @deprecated ICU 58 The numeric value may change over time, see ICU ticket #12420.
+     */
+    UDATA_FILE_ACCESS_COUNT
+#endif  // U_HIDE_DEPRECATED_API
+} UDataFileAccess;
+
+/**
+ * This function may be called to control how ICU loads data. It must be called
+ * before any ICU data is loaded, including application data loaded with 
+ * ures/ResourceBundle or udata APIs. This function is not multithread safe.  
+ * The results of calling it while other threads are loading data are undefined.
+ * @param access The type of file access to be used
+ * @param status Error code.
+ * @see UDataFileAccess
+ * @stable ICU 3.4 
+ */
+U_STABLE void U_EXPORT2
+udata_setFileAccess(UDataFileAccess access, UErrorCode *status);
+
+U_CDECL_END
+
+#endif
diff --git a/vendor/icu/include/unicode/uiter.h b/vendor/icu/include/unicode/uiter.h
new file mode 100644
index 0000000000..c15fc50d23
--- /dev/null
+++ b/vendor/icu/include/unicode/uiter.h
@@ -0,0 +1,709 @@
+// © 2016 and later: Unicode, Inc. and others.
+// License & terms of use: http://www.unicode.org/copyright.html
+/*
+*******************************************************************************
+*
+*   Copyright (C) 2002-2011 International Business Machines
+*   Corporation and others.  All Rights Reserved.
+*
+*******************************************************************************
+*   file name:  uiter.h
+*   encoding:   UTF-8
+*   tab size:   8 (not used)
+*   indentation:4
+*
+*   created on: 2002jan18
+*   created by: Markus W. Scherer
+*/
+
+#ifndef __UITER_H__
+#define __UITER_H__
+
+/**
+ * \file
+ * \brief C API: Unicode Character Iteration
+ *
+ * @see UCharIterator
+ */
+
+#include <unicode/utypes.h>
+
+#if U_SHOW_CPLUSPLUS_API
+    U_NAMESPACE_BEGIN
+
+    class CharacterIterator;
+    class Replaceable;
+
+    U_NAMESPACE_END
+#endif
+
+U_CDECL_BEGIN
+
+struct UCharIterator;
+typedef struct UCharIterator UCharIterator; /**< C typedef for struct UCharIterator. @stable ICU 2.1 */
+
+/**
+ * Origin constants for UCharIterator.getIndex() and UCharIterator.move().
+ * @see UCharIteratorMove
+ * @see UCharIterator
+ * @stable ICU 2.1
+ */
+typedef enum UCharIteratorOrigin {
+    UITER_START, UITER_CURRENT, UITER_LIMIT, UITER_ZERO, UITER_LENGTH
+} UCharIteratorOrigin;
+
+/** Constants for UCharIterator. @stable ICU 2.6 */
+enum {
+    /**
+     * Constant value that may be returned by UCharIteratorMove
+     * indicating that the final UTF-16 index is not known, but that the move succeeded.
+     * This can occur when moving relative to limit or length, or
+     * when moving relative to the current index after a setState()
+     * when the current UTF-16 index is not known.
+     *
+     * It would be very inefficient to have to count from the beginning of the text
+     * just to get the current/limit/length index after moving relative to it.
+     * The actual index can be determined with getIndex(UITER_CURRENT)
+     * which will count the UChars if necessary.
+     *
+     * @stable ICU 2.6
+     */
+    UITER_UNKNOWN_INDEX=-2
+};
+
+
+/**
+ * Constant for UCharIterator getState() indicating an error or
+ * an unknown state.
+ * Returned by uiter_getState()/UCharIteratorGetState
+ * when an error occurs.
+ * Also, some UCharIterator implementations may not be able to return
+ * a valid state for each position. This will be clearly documented
+ * for each such iterator (none of the public ones here).
+ *
+ * @stable ICU 2.6
+ */
+#define UITER_NO_STATE ((uint32_t)0xffffffff)
+
+/**
+ * Function type declaration for UCharIterator.getIndex().
+ *
+ * Gets the current position, or the start or limit of the
+ * iteration range.
+ *
+ * This function may perform slowly for UITER_CURRENT after setState() was called,
+ * or for UITER_LENGTH, because an iterator implementation may have to count
+ * UChars if the underlying storage is not UTF-16.
+ *
+ * @param iter the UCharIterator structure ("this pointer")
+ * @param origin get the 0, start, limit, length, or current index
+ * @return the requested index, or U_SENTINEL in an error condition
+ *
+ * @see UCharIteratorOrigin
+ * @see UCharIterator
+ * @stable ICU 2.1
+ */
+typedef int32_t U_CALLCONV
+UCharIteratorGetIndex(UCharIterator *iter, UCharIteratorOrigin origin);
+
+/**
+ * Function type declaration for UCharIterator.move().
+ *
+ * Use iter->move(iter, index, UITER_ZERO) like CharacterIterator::setIndex(index).
+ *
+ * Moves the current position relative to the start or limit of the
+ * iteration range, or relative to the current position itself.
+ * The movement is expressed in numbers of code units forward
+ * or backward by specifying a positive or negative delta.
+ * Out of bounds movement will be pinned to the start or limit.
+ *
+ * This function may perform slowly for moving relative to UITER_LENGTH
+ * because an iterator implementation may have to count the rest of the
+ * UChars if the native storage is not UTF-16.
+ *
+ * When moving relative to the limit or length, or
+ * relative to the current position after setState() was called,
+ * move() may return UITER_UNKNOWN_INDEX (-2) to avoid an inefficient
+ * determination of the actual UTF-16 index.
+ * The actual index can be determined with getIndex(UITER_CURRENT)
+ * which will count the UChars if necessary.
+ * See UITER_UNKNOWN_INDEX for details.
+ *
+ * @param iter the UCharIterator structure ("this pointer")
+ * @param delta can be positive, zero, or negative
+ * @param origin move relative to the 0, start, limit, length, or current index
+ * @return the new index, or U_SENTINEL on an error condition,
+ *         or UITER_UNKNOWN_INDEX when the index is not known.
+ *
+ * @see UCharIteratorOrigin
+ * @see UCharIterator
+ * @see UITER_UNKNOWN_INDEX
+ * @stable ICU 2.1
+ */
+typedef int32_t U_CALLCONV
+UCharIteratorMove(UCharIterator *iter, int32_t delta, UCharIteratorOrigin origin);
+
+/**
+ * Function type declaration for UCharIterator.hasNext().
+ *
+ * Check if current() and next() can still
+ * return another code unit.
+ *
+ * @param iter the UCharIterator structure ("this pointer")
+ * @return boolean value for whether current() and next() can still return another code unit
+ *
+ * @see UCharIterator
+ * @stable ICU 2.1
+ */
+typedef UBool U_CALLCONV
+UCharIteratorHasNext(UCharIterator *iter);
+
+/**
+ * Function type declaration for UCharIterator.hasPrevious().
+ *
+ * Check if previous() can still return another code unit.
+ *
+ * @param iter the UCharIterator structure ("this pointer")
+ * @return boolean value for whether previous() can still return another code unit
+ *
+ * @see UCharIterator
+ * @stable ICU 2.1
+ */
+typedef UBool U_CALLCONV
+UCharIteratorHasPrevious(UCharIterator *iter);
+ 
+/**
+ * Function type declaration for UCharIterator.current().
+ *
+ * Return the code unit at the current position,
+ * or U_SENTINEL if there is none (index is at the limit).
+ *
+ * @param iter the UCharIterator structure ("this pointer")
+ * @return the current code unit
+ *
+ * @see UCharIterator
+ * @stable ICU 2.1
+ */
+typedef UChar32 U_CALLCONV
+UCharIteratorCurrent(UCharIterator *iter);
+
+/**
+ * Function type declaration for UCharIterator.next().
+ *
+ * Return the code unit at the current index and increment
+ * the index (post-increment, like s[i++]),
+ * or return U_SENTINEL if there is none (index is at the limit).
+ *
+ * @param iter the UCharIterator structure ("this pointer")
+ * @return the current code unit (and post-increment the current index)
+ *
+ * @see UCharIterator
+ * @stable ICU 2.1
+ */
+typedef UChar32 U_CALLCONV
+UCharIteratorNext(UCharIterator *iter);
+
+/**
+ * Function type declaration for UCharIterator.previous().
+ *
+ * Decrement the index and return the code unit from there
+ * (pre-decrement, like s[--i]),
+ * or return U_SENTINEL if there is none (index is at the start).
+ *
+ * @param iter the UCharIterator structure ("this pointer")
+ * @return the previous code unit (after pre-decrementing the current index)
+ *
+ * @see UCharIterator
+ * @stable ICU 2.1
+ */
+typedef UChar32 U_CALLCONV
+UCharIteratorPrevious(UCharIterator *iter);
+
+/**
+ * Function type declaration for UCharIterator.reservedFn().
+ * Reserved for future use.
+ *
+ * @param iter the UCharIterator structure ("this pointer")
+ * @param something some integer argument
+ * @return some integer
+ *
+ * @see UCharIterator
+ * @stable ICU 2.1
+ */
+typedef int32_t U_CALLCONV
+UCharIteratorReserved(UCharIterator *iter, int32_t something);
+
+/**
+ * Function type declaration for UCharIterator.getState().
+ *
+ * Get the "state" of the iterator in the form of a single 32-bit word.
+ * It is recommended that the state value be calculated to be as small as
+ * is feasible. For strings with limited lengths, fewer than 32 bits may
+ * be sufficient.
+ *
+ * This is used together with setState()/UCharIteratorSetState
+ * to save and restore the iterator position more efficiently than with
+ * getIndex()/move().
+ *
+ * The iterator state is defined as a uint32_t value because it is designed
+ * for use in ucol_nextSortKeyPart() which provides 32 bits to store the state
+ * of the character iterator.
+ *
+ * With some UCharIterator implementations (e.g., UTF-8),
+ * getting and setting the UTF-16 index with existing functions
+ * (getIndex(UITER_CURRENT) followed by move(pos, UITER_ZERO)) is possible but
+ * relatively slow because the iterator has to "walk" from a known index
+ * to the requested one.
+ * This takes more time the farther it needs to go.
+ *
+ * An opaque state value allows an iterator implementation to provide
+ * an internal index (UTF-8: the source byte array index) for
+ * fast, constant-time restoration.
+ *
+ * After calling setState(), a getIndex(UITER_CURRENT) may be slow because
+ * the UTF-16 index may not be restored as well, but the iterator can deliver
+ * the correct text contents and move relative to the current position
+ * without performance degradation.
+ *
+ * Some UCharIterator implementations may not be able to return
+ * a valid state for each position, in which case they return UITER_NO_STATE instead.
+ * This will be clearly documented for each such iterator (none of the public ones here).
+ *
+ * @param iter the UCharIterator structure ("this pointer")
+ * @return the state word
+ *
+ * @see UCharIterator
+ * @see UCharIteratorSetState
+ * @see UITER_NO_STATE
+ * @stable ICU 2.6
+ */
+typedef uint32_t U_CALLCONV
+UCharIteratorGetState(const UCharIterator *iter);
+
+/**
+ * Function type declaration for UCharIterator.setState().
+ *
+ * Restore the "state" of the iterator using a state word from a getState() call.
+ * The iterator object need not be the same one as for which getState() was called,
+ * but it must be of the same type (set up using the same uiter_setXYZ function)
+ * and it must iterate over the same string
+ * (binary identical regardless of memory address).
+ * For more about the state word see UCharIteratorGetState.
+ *
+ * After calling setState(), a getIndex(UITER_CURRENT) may be slow because
+ * the UTF-16 index may not be restored as well, but the iterator can deliver
+ * the correct text contents and move relative to the current position
+ * without performance degradation.
+ *
+ * @param iter the UCharIterator structure ("this pointer")
+ * @param state the state word from a getState() call
+ *              on a same-type, same-string iterator
+ * @param pErrorCode Must be a valid pointer to an error code value,
+ *                   which must not indicate a failure before the function call.
+ *
+ * @see UCharIterator
+ * @see UCharIteratorGetState
+ * @stable ICU 2.6
+ */
+typedef void U_CALLCONV
+UCharIteratorSetState(UCharIterator *iter, uint32_t state, UErrorCode *pErrorCode);
+
+
+/**
+ * C API for code unit iteration.
+ * This can be used as a C wrapper around
+ * CharacterIterator, Replaceable, or implemented using simple strings, etc.
+ *
+ * There are two roles for using UCharIterator:
+ *
+ * A "provider" sets the necessary function pointers and controls the "protected"
+ * fields of the UCharIterator structure. A "provider" passes a UCharIterator
+ * into C APIs that need a UCharIterator as an abstract, flexible string interface.
+ *
+ * Implementations of such C APIs are "callers" of UCharIterator functions;
+ * they only use the "public" function pointers and never access the "protected"
+ * fields directly.
+ *
+ * The current() and next() functions only check the current index against the
+ * limit, and previous() only checks the current index against the start,
+ * to see if the iterator already reached the end of the iteration range.
+ *
+ * The assumption - in all iterators - is that the index is moved via the API,
+ * which means it won't go out of bounds, or the index is modified by
+ * user code that knows enough about the iterator implementation to set valid
+ * index values.
+ *
+ * UCharIterator functions return code unit values 0..0xffff,
+ * or U_SENTINEL if the iteration bounds are reached.
+ *
+ * @stable ICU 2.1
+ */
+struct UCharIterator {
+    /**
+     * (protected) Pointer to string or wrapped object or similar.
+     * Not used by caller.
+     * @stable ICU 2.1
+     */
+    const void *context;
+
+    /**
+     * (protected) Length of string or similar.
+     * Not used by caller.
+     * @stable ICU 2.1
+     */
+    int32_t length;
+
+    /**
+     * (protected) Start index or similar.
+     * Not used by caller.
+     * @stable ICU 2.1
+     */
+    int32_t start;
+
+    /**
+     * (protected) Current index or similar.
+     * Not used by caller.
+     * @stable ICU 2.1
+     */
+    int32_t index;
+
+    /**
+     * (protected) Limit index or similar.
+     * Not used by caller.
+     * @stable ICU 2.1
+     */
+    int32_t limit;
+
+    /**
+     * (protected) Used by UTF-8 iterators and possibly others.
+     * @stable ICU 2.1
+     */
+    int32_t reservedField;
+
+    /**
+     * (public) Returns the current position or the
+     * start or limit index of the iteration range.
+     *
+     * @see UCharIteratorGetIndex
+     * @stable ICU 2.1
+     */
+    UCharIteratorGetIndex *getIndex;
+
+    /**
+     * (public) Moves the current position relative to the start or limit of the
+     * iteration range, or relative to the current position itself.
+     * The movement is expressed in numbers of code units forward
+     * or backward by specifying a positive or negative delta.
+     *
+     * @see UCharIteratorMove
+     * @stable ICU 2.1
+     */
+    UCharIteratorMove *move;
+
+    /**
+     * (public) Check if current() and next() can still
+     * return another code unit.
+     *
+     * @see UCharIteratorHasNext
+     * @stable ICU 2.1
+     */
+    UCharIteratorHasNext *hasNext;
+
+    /**
+     * (public) Check if previous() can still return another code unit.
+     *
+     * @see UCharIteratorHasPrevious
+     * @stable ICU 2.1
+     */
+    UCharIteratorHasPrevious *hasPrevious;
+
+    /**
+     * (public) Return the code unit at the current position,
+     * or U_SENTINEL if there is none (index is at the limit).
+     *
+     * @see UCharIteratorCurrent
+     * @stable ICU 2.1
+     */
+    UCharIteratorCurrent *current;
+
+    /**
+     * (public) Return the code unit at the current index and increment
+     * the index (post-increment, like s[i++]),
+     * or return U_SENTINEL if there is none (index is at the limit).
+     *
+     * @see UCharIteratorNext
+     * @stable ICU 2.1
+     */
+    UCharIteratorNext *next;
+
+    /**
+     * (public) Decrement the index and return the code unit from there
+     * (pre-decrement, like s[--i]),
+     * or return U_SENTINEL if there is none (index is at the start).
+     *
+     * @see UCharIteratorPrevious
+     * @stable ICU 2.1
+     */
+    UCharIteratorPrevious *previous;
+
+    /**
+     * (public) Reserved for future use. Currently NULL.
+     *
+     * @see UCharIteratorReserved
+     * @stable ICU 2.1
+     */
+    UCharIteratorReserved *reservedFn;
+
+    /**
+     * (public) Return the state of the iterator, to be restored later with setState().
+     * This function pointer is NULL if the iterator does not implement it.
+     *
+     * @see UCharIteratorGet
+     * @stable ICU 2.6
+     */
+    UCharIteratorGetState *getState;
+
+    /**
+     * (public) Restore the iterator state from the state word from a call
+     * to getState().
+     * This function pointer is NULL if the iterator does not implement it.
+     *
+     * @see UCharIteratorSet
+     * @stable ICU 2.6
+     */
+    UCharIteratorSetState *setState;
+};
+
+/**
+ * Helper function for UCharIterator to get the code point
+ * at the current index.
+ *
+ * Return the code point that includes the code unit at the current position,
+ * or U_SENTINEL if there is none (index is at the limit).
+ * If the current code unit is a lead or trail surrogate,
+ * then the following or preceding surrogate is used to form
+ * the code point value.
+ *
+ * @param iter the UCharIterator structure ("this pointer")
+ * @return the current code point
+ *
+ * @see UCharIterator
+ * @see U16_GET
+ * @see UnicodeString::char32At()
+ * @stable ICU 2.1
+ */
+U_STABLE UChar32 U_EXPORT2
+uiter_current32(UCharIterator *iter);
+
+/**
+ * Helper function for UCharIterator to get the next code point.
+ *
+ * Return the code point at the current index and increment
+ * the index (post-increment, like s[i++]),
+ * or return U_SENTINEL if there is none (index is at the limit).
+ *
+ * @param iter the UCharIterator structure ("this pointer")
+ * @return the current code point (and post-increment the current index)
+ *
+ * @see UCharIterator
+ * @see U16_NEXT
+ * @stable ICU 2.1
+ */
+U_STABLE UChar32 U_EXPORT2
+uiter_next32(UCharIterator *iter);
+
+/**
+ * Helper function for UCharIterator to get the previous code point.
+ *
+ * Decrement the index and return the code point from there
+ * (pre-decrement, like s[--i]),
+ * or return U_SENTINEL if there is none (index is at the start).
+ *
+ * @param iter the UCharIterator structure ("this pointer")
+ * @return the previous code point (after pre-decrementing the current index)
+ *
+ * @see UCharIterator
+ * @see U16_PREV
+ * @stable ICU 2.1
+ */
+U_STABLE UChar32 U_EXPORT2
+uiter_previous32(UCharIterator *iter);
+
+/**
+ * Get the "state" of the iterator in the form of a single 32-bit word.
+ * This is a convenience function that calls iter->getState(iter)
+ * if iter->getState is not NULL;
+ * if it is NULL or any other error occurs, then UITER_NO_STATE is returned.
+ *
+ * Some UCharIterator implementations may not be able to return
+ * a valid state for each position, in which case they return UITER_NO_STATE instead.
+ * This will be clearly documented for each such iterator (none of the public ones here).
+ *
+ * @param iter the UCharIterator structure ("this pointer")
+ * @return the state word
+ *
+ * @see UCharIterator
+ * @see UCharIteratorGetState
+ * @see UITER_NO_STATE
+ * @stable ICU 2.6
+ */
+U_STABLE uint32_t U_EXPORT2
+uiter_getState(const UCharIterator *iter);
+
+/**
+ * Restore the "state" of the iterator using a state word from a getState() call.
+ * This is a convenience function that calls iter->setState(iter, state, pErrorCode)
+ * if iter->setState is not NULL; if it is NULL, then U_UNSUPPORTED_ERROR is set.
+ *
+ * @param iter the UCharIterator structure ("this pointer")
+ * @param state the state word from a getState() call
+ *              on a same-type, same-string iterator
+ * @param pErrorCode Must be a valid pointer to an error code value,
+ *                   which must not indicate a failure before the function call.
+ *
+ * @see UCharIterator
+ * @see UCharIteratorSetState
+ * @stable ICU 2.6
+ */
+U_STABLE void U_EXPORT2
+uiter_setState(UCharIterator *iter, uint32_t state, UErrorCode *pErrorCode);
+
+/**
+ * Set up a UCharIterator to iterate over a string.
+ *
+ * Sets the UCharIterator function pointers for iteration over the string s
+ * with iteration boundaries start=index=0 and length=limit=string length.
+ * The "provider" may set the start, index, and limit values at any time
+ * within the range 0..length.
+ * The length field will be ignored.
+ *
+ * The string pointer s is set into UCharIterator.context without copying
+ * or reallocating the string contents.
+ *
+ * getState() simply returns the current index.
+ * move() will always return the final index.
+ *
+ * @param iter UCharIterator structure to be set for iteration
+ * @param s String to iterate over
+ * @param length Length of s, or -1 if NUL-terminated
+ *
+ * @see UCharIterator
+ * @stable ICU 2.1
+ */
+U_STABLE void U_EXPORT2
+uiter_setString(UCharIterator *iter, const UChar *s, int32_t length);
+
+/**
+ * Set up a UCharIterator to iterate over a UTF-16BE string
+ * (byte vector with a big-endian pair of bytes per UChar).
+ *
+ * Everything works just like with a normal UChar iterator (uiter_setString),
+ * except that UChars are assembled from byte pairs,
+ * and that the length argument here indicates an even number of bytes.
+ *
+ * getState() simply returns the current index.
+ * move() will always return the final index.
+ *
+ * @param iter UCharIterator structure to be set for iteration
+ * @param s UTF-16BE string to iterate over
+ * @param length Length of s as an even number of bytes, or -1 if NUL-terminated
+ *               (NUL means pair of 0 bytes at even index from s)
+ *
+ * @see UCharIterator
+ * @see uiter_setString
+ * @stable ICU 2.6
+ */
+U_STABLE void U_EXPORT2
+uiter_setUTF16BE(UCharIterator *iter, const char *s, int32_t length);
+
+/**
+ * Set up a UCharIterator to iterate over a UTF-8 string.
+ *
+ * Sets the UCharIterator function pointers for iteration over the UTF-8 string s
+ * with UTF-8 iteration boundaries 0 and length.
+ * The implementation counts the UTF-16 index on the fly and
+ * lazily evaluates the UTF-16 length of the text.
+ *
+ * The start field is used as the UTF-8 offset, the limit field as the UTF-8 length.
+ * When the reservedField is not 0, then it contains a supplementary code point
+ * and the UTF-16 index is between the two corresponding surrogates.
+ * At that point, the UTF-8 index is behind that code point.
+ *
+ * The UTF-8 string pointer s is set into UCharIterator.context without copying
+ * or reallocating the string contents.
+ *
+ * getState() returns a state value consisting of
+ * - the current UTF-8 source byte index (bits 31..1)
+ * - a flag (bit 0) that indicates whether the UChar position is in the middle
+ *   of a surrogate pair
+ *   (from a 4-byte UTF-8 sequence for the corresponding supplementary code point)
+ *
+ * getState() cannot also encode the UTF-16 index in the state value.
+ * move(relative to limit or length), or
+ * move(relative to current) after setState(), may return UITER_UNKNOWN_INDEX.
+ *
+ * @param iter UCharIterator structure to be set for iteration
+ * @param s UTF-8 string to iterate over
+ * @param length Length of s in bytes, or -1 if NUL-terminated
+ *
+ * @see UCharIterator
+ * @stable ICU 2.6
+ */
+U_STABLE void U_EXPORT2
+uiter_setUTF8(UCharIterator *iter, const char *s, int32_t length);
+
+#if U_SHOW_CPLUSPLUS_API
+
+/**
+ * Set up a UCharIterator to wrap around a C++ CharacterIterator.
+ *
+ * Sets the UCharIterator function pointers for iteration using the
+ * CharacterIterator charIter.
+ *
+ * The CharacterIterator pointer charIter is set into UCharIterator.context
+ * without copying or cloning the CharacterIterator object.
+ * The other "protected" UCharIterator fields are set to 0 and will be ignored.
+ * The iteration index and boundaries are controlled by the CharacterIterator.
+ *
+ * getState() simply returns the current index.
+ * move() will always return the final index.
+ *
+ * @param iter UCharIterator structure to be set for iteration
+ * @param charIter CharacterIterator to wrap
+ *
+ * @see UCharIterator
+ * @stable ICU 2.1
+ */
+U_STABLE void U_EXPORT2
+uiter_setCharacterIterator(UCharIterator *iter, icu::CharacterIterator *charIter);
+
+/**
+ * Set up a UCharIterator to iterate over a C++ Replaceable.
+ *
+ * Sets the UCharIterator function pointers for iteration over the
+ * Replaceable rep with iteration boundaries start=index=0 and
+ * length=limit=rep->length().
+ * The "provider" may set the start, index, and limit values at any time
+ * within the range 0..length=rep->length().
+ * The length field will be ignored.
+ *
+ * The Replaceable pointer rep is set into UCharIterator.context without copying
+ * or cloning/reallocating the Replaceable object.
+ *
+ * getState() simply returns the current index.
+ * move() will always return the final index.
+ *
+ * @param iter UCharIterator structure to be set for iteration
+ * @param rep Replaceable to iterate over
+ *
+ * @see UCharIterator
+ * @stable ICU 2.1
+ */
+U_STABLE void U_EXPORT2
+uiter_setReplaceable(UCharIterator *iter, const icu::Replaceable *rep);
+
+#endif
+
+U_CDECL_END
+
+#endif
diff --git a/vendor/icu/include/unicode/umachine.h b/vendor/icu/include/unicode/umachine.h
new file mode 100644
index 0000000000..909c0a5d7d
--- /dev/null
+++ b/vendor/icu/include/unicode/umachine.h
@@ -0,0 +1,424 @@
+// © 2016 and later: Unicode, Inc. and others.
+// License & terms of use: http://www.unicode.org/copyright.html
+/*
+******************************************************************************
+*
+*   Copyright (C) 1999-2015, International Business Machines
+*   Corporation and others.  All Rights Reserved.
+*
+******************************************************************************
+*   file name:  umachine.h
+*   encoding:   UTF-8
+*   tab size:   8 (not used)
+*   indentation:4
+*
+*   created on: 1999sep13
+*   created by: Markus W. Scherer
+*
+*   This file defines basic types and constants for ICU to be
+*   platform-independent. umachine.h and utf.h are included into
+*   utypes.h to provide all the general definitions for ICU.
+*   All of these definitions used to be in utypes.h before
+*   the UTF-handling macros made this unmaintainable.
+*/
+
+#ifndef __UMACHINE_H__
+#define __UMACHINE_H__
+
+
+/**
+ * \file
+ * \brief Basic types and constants for UTF
+ *
+ * <h2> Basic types and constants for UTF </h2>
+ *   This file defines basic types and constants for utf.h to be
+ *   platform-independent. umachine.h and utf.h are included into
+ *   utypes.h to provide all the general definitions for ICU.
+ *   All of these definitions used to be in utypes.h before
+ *   the UTF-handling macros made this unmaintainable.
+ *
+ */
+/*==========================================================================*/
+/* Include platform-dependent definitions                                   */
+/* which are contained in the platform-specific file platform.h             */
+/*==========================================================================*/
+
+#include <unicode/ptypes.h> /* platform.h is included in ptypes.h */
+
+/*
+ * ANSI C headers:
+ * stddef.h defines wchar_t
+ */
+#include <stddef.h>
+
+/*==========================================================================*/
+/* For C wrappers, we use the symbol U_STABLE.                                */
+/* This works properly if the includer is C or C++.                         */
+/* Functions are declared   U_STABLE return-type U_EXPORT2 function-name()... */
+/*==========================================================================*/
+
+/**
+ * \def U_CFUNC
+ * This is used in a declaration of a library private ICU C function.
+ * @stable ICU 2.4
+ */
+
+/**
+ * \def U_CDECL_BEGIN
+ * This is used to begin a declaration of a library private ICU C API.
+ * @stable ICU 2.4
+ */
+
+/**
+ * \def U_CDECL_END
+ * This is used to end a declaration of a library private ICU C API
+ * @stable ICU 2.4
+ */
+
+#ifdef __cplusplus
+#   define U_CFUNC extern "C"
+#   define U_CDECL_BEGIN extern "C" {
+#   define U_CDECL_END   }
+#else
+#   define U_CFUNC extern
+#   define U_CDECL_BEGIN
+#   define U_CDECL_END
+#endif
+
+#ifndef U_ATTRIBUTE_DEPRECATED
+/**
+ * \def U_ATTRIBUTE_DEPRECATED
+ *  This is used for GCC specific attributes
+ * @internal
+ */
+#if U_GCC_MAJOR_MINOR >= 302
+#    define U_ATTRIBUTE_DEPRECATED __attribute__ ((deprecated))
+/**
+ * \def U_ATTRIBUTE_DEPRECATED
+ * This is used for Visual C++ specific attributes 
+ * @internal
+ */
+#elif defined(_MSC_VER) && (_MSC_VER >= 1400)
+#    define U_ATTRIBUTE_DEPRECATED __declspec(deprecated)
+#else
+#    define U_ATTRIBUTE_DEPRECATED
+#endif
+#endif
+
+/** This is used to declare a function as a public ICU C API @stable ICU 2.0*/
+#define U_CAPI U_CFUNC U_EXPORT
+/** This is used to declare a function as a stable public ICU C API*/
+#define U_STABLE U_CAPI
+/** This is used to declare a function as a draft public ICU C API  */
+#define U_DRAFT  U_CAPI
+/** This is used to declare a function as a deprecated public ICU C API  */
+#define U_DEPRECATED U_CAPI U_ATTRIBUTE_DEPRECATED
+/** This is used to declare a function as an obsolete public ICU C API  */
+#define U_OBSOLETE U_CAPI
+/** This is used to declare a function as an internal ICU C API  */
+#define U_INTERNAL U_CAPI
+
+/**
+ * \def U_OVERRIDE
+ * Defined to the C++11 "override" keyword if available.
+ * Denotes a class or member which is an override of the base class.
+ * May result in an error if it applied to something not an override.
+ * @internal
+ */
+
+/**
+ * \def U_FINAL
+ * Defined to the C++11 "final" keyword if available.
+ * Denotes a class or member which may not be overridden in subclasses.
+ * May result in an error if subclasses attempt to override.
+ * @internal
+ */
+
+#if U_CPLUSPLUS_VERSION >= 11
+/* C++11 */
+#ifndef U_OVERRIDE
+#define U_OVERRIDE override
+#endif
+#ifndef U_FINAL
+#define U_FINAL final
+#endif
+#else
+/* not C++11 - define to nothing */
+#ifndef U_OVERRIDE
+#define U_OVERRIDE
+#endif
+#ifndef U_FINAL
+#define U_FINAL
+#endif
+#endif
+
+/*==========================================================================*/
+/* limits for int32_t etc., like in POSIX inttypes.h                        */
+/*==========================================================================*/
+
+#ifndef INT8_MIN
+/** The smallest value an 8 bit signed integer can hold @stable ICU 2.0 */
+#   define INT8_MIN        ((int8_t)(-128))
+#endif
+#ifndef INT16_MIN
+/** The smallest value a 16 bit signed integer can hold @stable ICU 2.0 */
+#   define INT16_MIN       ((int16_t)(-32767-1))
+#endif
+#ifndef INT32_MIN
+/** The smallest value a 32 bit signed integer can hold @stable ICU 2.0 */
+#   define INT32_MIN       ((int32_t)(-2147483647-1))
+#endif
+
+#ifndef INT8_MAX
+/** The largest value an 8 bit signed integer can hold @stable ICU 2.0 */
+#   define INT8_MAX        ((int8_t)(127))
+#endif
+#ifndef INT16_MAX
+/** The largest value a 16 bit signed integer can hold @stable ICU 2.0 */
+#   define INT16_MAX       ((int16_t)(32767))
+#endif
+#ifndef INT32_MAX
+/** The largest value a 32 bit signed integer can hold @stable ICU 2.0 */
+#   define INT32_MAX       ((int32_t)(2147483647))
+#endif
+
+#ifndef UINT8_MAX
+/** The largest value an 8 bit unsigned integer can hold @stable ICU 2.0 */
+#   define UINT8_MAX       ((uint8_t)(255U))
+#endif
+#ifndef UINT16_MAX
+/** The largest value a 16 bit unsigned integer can hold @stable ICU 2.0 */
+#   define UINT16_MAX      ((uint16_t)(65535U))
+#endif
+#ifndef UINT32_MAX
+/** The largest value a 32 bit unsigned integer can hold @stable ICU 2.0 */
+#   define UINT32_MAX      ((uint32_t)(4294967295U))
+#endif
+
+#if defined(U_INT64_T_UNAVAILABLE)
+# error int64_t is required for decimal format and rule-based number format.
+#else
+# ifndef INT64_C
+/**
+ * Provides a platform independent way to specify a signed 64-bit integer constant.
+ * note: may be wrong for some 64 bit platforms - ensure your compiler provides INT64_C
+ * @stable ICU 2.8
+ */
+#   define INT64_C(c) c ## LL
+# endif
+# ifndef UINT64_C
+/**
+ * Provides a platform independent way to specify an unsigned 64-bit integer constant.
+ * note: may be wrong for some 64 bit platforms - ensure your compiler provides UINT64_C
+ * @stable ICU 2.8
+ */
+#   define UINT64_C(c) c ## ULL
+# endif
+# ifndef U_INT64_MIN
+/** The smallest value a 64 bit signed integer can hold @stable ICU 2.8 */
+#     define U_INT64_MIN       ((int64_t)(INT64_C(-9223372036854775807)-1))
+# endif
+# ifndef U_INT64_MAX
+/** The largest value a 64 bit signed integer can hold @stable ICU 2.8 */
+#     define U_INT64_MAX       ((int64_t)(INT64_C(9223372036854775807)))
+# endif
+# ifndef U_UINT64_MAX
+/** The largest value a 64 bit unsigned integer can hold @stable ICU 2.8 */
+#     define U_UINT64_MAX      ((uint64_t)(UINT64_C(18446744073709551615)))
+# endif
+#endif
+
+/*==========================================================================*/
+/* Boolean data type                                                        */
+/*==========================================================================*/
+
+/** The ICU boolean type @stable ICU 2.0 */
+typedef int8_t UBool;
+
+#ifndef TRUE
+/** The TRUE value of a UBool @stable ICU 2.0 */
+#   define TRUE  1
+#endif
+#ifndef FALSE
+/** The FALSE value of a UBool @stable ICU 2.0 */
+#   define FALSE 0
+#endif
+
+
+/*==========================================================================*/
+/* Unicode data types                                                       */
+/*==========================================================================*/
+
+/* wchar_t-related definitions -------------------------------------------- */
+
+/*
+ * \def U_WCHAR_IS_UTF16
+ * Defined if wchar_t uses UTF-16.
+ *
+ * @stable ICU 2.0
+ */
+/*
+ * \def U_WCHAR_IS_UTF32
+ * Defined if wchar_t uses UTF-32.
+ *
+ * @stable ICU 2.0
+ */
+#if !defined(U_WCHAR_IS_UTF16) && !defined(U_WCHAR_IS_UTF32)
+#   ifdef __STDC_ISO_10646__
+#       if (U_SIZEOF_WCHAR_T==2)
+#           define U_WCHAR_IS_UTF16
+#       elif (U_SIZEOF_WCHAR_T==4)
+#           define  U_WCHAR_IS_UTF32
+#       endif
+#   elif defined __UCS2__
+#       if (U_PF_OS390 <= U_PLATFORM && U_PLATFORM <= U_PF_OS400) && (U_SIZEOF_WCHAR_T==2)
+#           define U_WCHAR_IS_UTF16
+#       endif
+#   elif defined(__UCS4__) || (U_PLATFORM == U_PF_OS400 && defined(__UTF32__))
+#       if (U_SIZEOF_WCHAR_T==4)
+#           define U_WCHAR_IS_UTF32
+#       endif
+#   elif U_PLATFORM_IS_DARWIN_BASED || (U_SIZEOF_WCHAR_T==4 && U_PLATFORM_IS_LINUX_BASED)
+#       define U_WCHAR_IS_UTF32
+#   elif U_PLATFORM_HAS_WIN32_API
+#       define U_WCHAR_IS_UTF16
+#   endif
+#endif
+
+/* UChar and UChar32 definitions -------------------------------------------- */
+
+/** Number of bytes in a UChar. @stable ICU 2.0 */
+#define U_SIZEOF_UCHAR 2
+
+/**
+ * \def U_CHAR16_IS_TYPEDEF
+ * If 1, then char16_t is a typedef and not a real type (yet)
+ * @internal
+ */
+#if (U_PLATFORM == U_PF_AIX) && defined(__cplusplus) &&(U_CPLUSPLUS_VERSION < 11)
+// for AIX, uchar.h needs to be included
+# include <uchar.h>
+# define U_CHAR16_IS_TYPEDEF 1
+#elif defined(_MSC_VER) && (_MSC_VER < 1900)
+// Versions of Visual Studio/MSVC below 2015 do not support char16_t as a real type,
+// and instead use a typedef.  https://msdn.microsoft.com/library/bb531344.aspx
+# define U_CHAR16_IS_TYPEDEF 1
+#else
+# define U_CHAR16_IS_TYPEDEF 0
+#endif
+
+
+/**
+ * \var UChar
+ *
+ * The base type for UTF-16 code units and pointers.
+ * Unsigned 16-bit integer.
+ * Starting with ICU 59, C++ API uses char16_t directly, while C API continues to use UChar.
+ *
+ * UChar is configurable by defining the macro UCHAR_TYPE
+ * on the preprocessor or compiler command line:
+ * -DUCHAR_TYPE=uint16_t or -DUCHAR_TYPE=wchar_t (if U_SIZEOF_WCHAR_T==2) etc.
+ * (The UCHAR_TYPE can also be #defined earlier in this file, for outside the ICU library code.)
+ * This is for transitional use from application code that uses uint16_t or wchar_t for UTF-16.
+ *
+ * The default is UChar=char16_t.
+ *
+ * C++11 defines char16_t as bit-compatible with uint16_t, but as a distinct type.
+ *
+ * In C, char16_t is a simple typedef of uint_least16_t.
+ * ICU requires uint_least16_t=uint16_t for data memory mapping.
+ * On macOS, char16_t is not available because the uchar.h standard header is missing.
+ *
+ * @stable ICU 4.4
+ */
+
+#if 1
+    // #if 1 is normal. UChar defaults to char16_t in C++.
+    // For configuration testing of UChar=uint16_t temporarily change this to #if 0.
+    // The intltest Makefile #defines UCHAR_TYPE=char16_t,
+    // so we only #define it to uint16_t if it is undefined so far.
+#elif !defined(UCHAR_TYPE)
+#   define UCHAR_TYPE uint16_t
+#endif
+
+#if defined(U_COMBINED_IMPLEMENTATION) || defined(U_COMMON_IMPLEMENTATION) || \
+        defined(U_I18N_IMPLEMENTATION) || defined(U_IO_IMPLEMENTATION)
+    // Inside the ICU library code, never configurable.
+    typedef char16_t UChar;
+#elif defined(UCHAR_TYPE)
+    typedef UCHAR_TYPE UChar;
+#elif defined(__cplusplus)
+    typedef char16_t UChar;
+#else
+    typedef uint16_t UChar;
+#endif
+
+/**
+ * \var OldUChar
+ * Default ICU 58 definition of UChar.
+ * A base type for UTF-16 code units and pointers.
+ * Unsigned 16-bit integer.
+ *
+ * Define OldUChar to be wchar_t if that is 16 bits wide.
+ * If wchar_t is not 16 bits wide, then define UChar to be uint16_t.
+ *
+ * This makes the definition of OldUChar platform-dependent
+ * but allows direct string type compatibility with platforms with
+ * 16-bit wchar_t types.
+ *
+ * This is how UChar was defined in ICU 58, for transition convenience.
+ * Exception: ICU 58 UChar was defined to UCHAR_TYPE if that macro was defined.
+ * The current UChar responds to UCHAR_TYPE but OldUChar does not.
+ *
+ * @stable ICU 59
+ */
+#if U_SIZEOF_WCHAR_T==2
+    typedef wchar_t OldUChar;
+#elif defined(__CHAR16_TYPE__)
+    typedef __CHAR16_TYPE__ OldUChar;
+#else
+    typedef uint16_t OldUChar;
+#endif
+
+/**
+ * Define UChar32 as a type for single Unicode code points.
+ * UChar32 is a signed 32-bit integer (same as int32_t).
+ *
+ * The Unicode code point range is 0..0x10ffff.
+ * All other values (negative or >=0x110000) are illegal as Unicode code points.
+ * They may be used as sentinel values to indicate "done", "error"
+ * or similar non-code point conditions.
+ *
+ * Before ICU 2.4 (Jitterbug 2146), UChar32 was defined
+ * to be wchar_t if that is 32 bits wide (wchar_t may be signed or unsigned)
+ * or else to be uint32_t.
+ * That is, the definition of UChar32 was platform-dependent.
+ *
+ * @see U_SENTINEL
+ * @stable ICU 2.4
+ */
+typedef int32_t UChar32;
+
+/**
+ * This value is intended for sentinel values for APIs that
+ * (take or) return single code points (UChar32).
+ * It is outside of the Unicode code point range 0..0x10ffff.
+ * 
+ * For example, a "done" or "error" value in a new API
+ * could be indicated with U_SENTINEL.
+ *
+ * ICU APIs designed before ICU 2.4 usually define service-specific "done"
+ * values, mostly 0xffff.
+ * Those may need to be distinguished from
+ * actual U+ffff text contents by calling functions like
+ * CharacterIterator::hasNext() or UnicodeString::length().
+ *
+ * @return -1
+ * @see UChar32
+ * @stable ICU 2.4
+ */
+#define U_SENTINEL (-1)
+
+#include <unicode/urename.h>
+
+#endif
diff --git a/vendor/icu/include/unicode/unistr.h b/vendor/icu/include/unicode/unistr.h
new file mode 100644
index 0000000000..c160301a9a
--- /dev/null
+++ b/vendor/icu/include/unicode/unistr.h
@@ -0,0 +1,4771 @@
+// © 2016 and later: Unicode, Inc. and others.
+// License & terms of use: http://www.unicode.org/copyright.html
+/*
+**********************************************************************
+*   Copyright (C) 1998-2016, International Business Machines
+*   Corporation and others.  All Rights Reserved.
+**********************************************************************
+*
+* File unistr.h
+*
+* Modification History:
+*
+*   Date        Name        Description
+*   09/25/98    stephen     Creation.
+*   11/11/98    stephen     Changed per 11/9 code review.
+*   04/20/99    stephen     Overhauled per 4/16 code review.
+*   11/18/99    aliu        Made to inherit from Replaceable.  Added method
+*                           handleReplaceBetween(); other methods unchanged.
+*   06/25/01    grhoten     Remove dependency on iostream.
+******************************************************************************
+*/
+
+#ifndef UNISTR_H
+#define UNISTR_H
+
+/**
+ * \file
+ * \brief C++ API: Unicode String
+ */
+
+#include <cstddef>
+#include <unicode/utypes.h>
+#include <unicode/char16ptr.h>
+#include <unicode/rep.h>
+#include <unicode/std_string.h>
+#include <unicode/stringpiece.h>
+#include <unicode/bytestream.h>
+
+struct UConverter;          // unicode/ucnv.h
+
+#ifndef USTRING_H
+/**
+ * \ingroup ustring_ustrlen
+ */
+U_STABLE int32_t U_EXPORT2
+u_strlen(const UChar *s);
+#endif
+
+U_NAMESPACE_BEGIN
+
+#if !UCONFIG_NO_BREAK_ITERATION
+class BreakIterator;        // unicode/brkiter.h
+#endif
+class Edits;
+
+U_NAMESPACE_END
+
+// Not #ifndef U_HIDE_INTERNAL_API because UnicodeString needs the UStringCaseMapper.
+/**
+ * Internal string case mapping function type.
+ * All error checking must be done.
+ * src and dest must not overlap.
+ * @internal
+ */
+typedef int32_t U_CALLCONV
+UStringCaseMapper(int32_t caseLocale, uint32_t options,
+#if !UCONFIG_NO_BREAK_ITERATION
+                  icu::BreakIterator *iter,
+#endif
+                  char16_t *dest, int32_t destCapacity,
+                  const char16_t *src, int32_t srcLength,
+                  icu::Edits *edits,
+                  UErrorCode &errorCode);
+
+U_NAMESPACE_BEGIN
+
+class Locale;               // unicode/locid.h
+class StringCharacterIterator;
+class UnicodeStringAppendable;  // unicode/appendable.h
+
+/* The <iostream> include has been moved to unicode/ustream.h */
+
+/**
+ * Constant to be used in the UnicodeString(char *, int32_t, EInvariant) constructor
+ * which constructs a Unicode string from an invariant-character char * string.
+ * About invariant characters see utypes.h.
+ * This constructor has no runtime dependency on conversion code and is
+ * therefore recommended over ones taking a charset name string
+ * (where the empty string "" indicates invariant-character conversion).
+ *
+ * @stable ICU 3.2
+ */
+#define US_INV icu::UnicodeString::kInvariant
+
+/**
+ * Unicode String literals in C++.
+ *
+ * Note: these macros are not recommended for new code.
+ * Prior to the availability of C++11 and u"unicode string literals",
+ * these macros were provided for portability and efficiency when
+ * initializing UnicodeStrings from literals.
+ *
+ * They work only for strings that contain "invariant characters", i.e.,
+ * only latin letters, digits, and some punctuation.
+ * See utypes.h for details.
+ *
+ * The string parameter must be a C string literal.
+ * The length of the string, not including the terminating
+ * <code>NUL</code>, must be specified as a constant.
+ * @stable ICU 2.0
+ */
+#if !U_CHAR16_IS_TYPEDEF
+# define UNICODE_STRING(cs, _length) icu::UnicodeString(TRUE, u ## cs, _length)
+#else
+# define UNICODE_STRING(cs, _length) icu::UnicodeString(TRUE, (const char16_t*)u ## cs, _length)
+#endif
+
+/**
+ * Unicode String literals in C++.
+ * Dependent on the platform properties, different UnicodeString
+ * constructors should be used to create a UnicodeString object from
+ * a string literal.
+ * The macros are defined for improved performance.
+ * They work only for strings that contain "invariant characters", i.e.,
+ * only latin letters, digits, and some punctuation.
+ * See utypes.h for details.
+ *
+ * The string parameter must be a C string literal.
+ * @stable ICU 2.0
+ */
+#define UNICODE_STRING_SIMPLE(cs) UNICODE_STRING(cs, -1)
+
+/**
+ * \def UNISTR_FROM_CHAR_EXPLICIT
+ * This can be defined to be empty or "explicit".
+ * If explicit, then the UnicodeString(char16_t) and UnicodeString(UChar32)
+ * constructors are marked as explicit, preventing their inadvertent use.
+ * @stable ICU 49
+ */
+#ifndef UNISTR_FROM_CHAR_EXPLICIT
+# if defined(U_COMBINED_IMPLEMENTATION) || defined(U_COMMON_IMPLEMENTATION) || defined(U_I18N_IMPLEMENTATION) || defined(U_IO_IMPLEMENTATION)
+    // Auto-"explicit" in ICU library code.
+#   define UNISTR_FROM_CHAR_EXPLICIT explicit
+# else
+    // Empty by default for source code compatibility.
+#   define UNISTR_FROM_CHAR_EXPLICIT
+# endif
+#endif
+
+/**
+ * \def UNISTR_FROM_STRING_EXPLICIT
+ * This can be defined to be empty or "explicit".
+ * If explicit, then the UnicodeString(const char *) and UnicodeString(const char16_t *)
+ * constructors are marked as explicit, preventing their inadvertent use.
+ *
+ * In particular, this helps prevent accidentally depending on ICU conversion code
+ * by passing a string literal into an API with a const UnicodeString & parameter.
+ * @stable ICU 49
+ */
+#ifndef UNISTR_FROM_STRING_EXPLICIT
+# if defined(U_COMBINED_IMPLEMENTATION) || defined(U_COMMON_IMPLEMENTATION) || defined(U_I18N_IMPLEMENTATION) || defined(U_IO_IMPLEMENTATION)
+    // Auto-"explicit" in ICU library code.
+#   define UNISTR_FROM_STRING_EXPLICIT explicit
+# else
+    // Empty by default for source code compatibility.
+#   define UNISTR_FROM_STRING_EXPLICIT
+# endif
+#endif
+
+/**
+ * \def UNISTR_OBJECT_SIZE
+ * Desired sizeof(UnicodeString) in bytes.
+ * It should be a multiple of sizeof(pointer) to avoid unusable space for padding.
+ * The object size may want to be a multiple of 16 bytes,
+ * which is a common granularity for heap allocation.
+ *
+ * Any space inside the object beyond sizeof(vtable pointer) + 2
+ * is available for storing short strings inside the object.
+ * The bigger the object, the longer a string that can be stored inside the object,
+ * without additional heap allocation.
+ *
+ * Depending on a platform's pointer size, pointer alignment requirements,
+ * and struct padding, the compiler will usually round up sizeof(UnicodeString)
+ * to 4 * sizeof(pointer) (or 3 * sizeof(pointer) for P128 data models),
+ * to hold the fields for heap-allocated strings.
+ * Such a minimum size also ensures that the object is easily large enough
+ * to hold at least 2 char16_ts, for one supplementary code point (U16_MAX_LENGTH).
+ *
+ * sizeof(UnicodeString) >= 48 should work for all known platforms.
+ *
+ * For example, on a 64-bit machine where sizeof(vtable pointer) is 8,
+ * sizeof(UnicodeString) = 64 would leave space for
+ * (64 - sizeof(vtable pointer) - 2) / U_SIZEOF_UCHAR = (64 - 8 - 2) / 2 = 27
+ * char16_ts stored inside the object.
+ *
+ * The minimum object size on a 64-bit machine would be
+ * 4 * sizeof(pointer) = 4 * 8 = 32 bytes,
+ * and the internal buffer would hold up to 11 char16_ts in that case.
+ *
+ * @see U16_MAX_LENGTH
+ * @stable ICU 56
+ */
+#ifndef UNISTR_OBJECT_SIZE
+# define UNISTR_OBJECT_SIZE 64
+#endif
+
+/**
+ * UnicodeString is a string class that stores Unicode characters directly and provides
+ * similar functionality as the Java String and StringBuffer/StringBuilder classes.
+ * It is a concrete implementation of the abstract class Replaceable (for transliteration).
+ *
+ * A UnicodeString may also "alias" an external array of characters
+ * (that is, point to it, rather than own the array)
+ * whose lifetime must then at least match the lifetime of the aliasing object.
+ * This aliasing may be preserved when returning a UnicodeString by value,
+ * depending on the compiler and the function implementation,
+ * via Return Value Optimization (RVO) or the move assignment operator.
+ * (However, the copy assignment operator does not preserve aliasing.)
+ * For details see the description of storage models at the end of the class API docs
+ * and in the User Guide chapter linked from there.
+ *
+ * The UnicodeString class is not suitable for subclassing.
+ *
+ * <p>For an overview of Unicode strings in C and C++ see the
+ * <a href="http://userguide.icu-project.org/strings#TOC-Strings-in-C-C-">User Guide Strings chapter</a>.</p>
+ *
+ * <p>In ICU, a Unicode string consists of 16-bit Unicode <em>code units</em>.
+ * A Unicode character may be stored with either one code unit
+ * (the most common case) or with a matched pair of special code units
+ * ("surrogates"). The data type for code units is char16_t.
+ * For single-character handling, a Unicode character code <em>point</em> is a value
+ * in the range 0..0x10ffff. ICU uses the UChar32 type for code points.</p>
+ *
+ * <p>Indexes and offsets into and lengths of strings always count code units, not code points.
+ * This is the same as with multi-byte char* strings in traditional string handling.
+ * Operations on partial strings typically do not test for code point boundaries.
+ * If necessary, the user needs to take care of such boundaries by testing for the code unit
+ * values or by using functions like
+ * UnicodeString::getChar32Start() and UnicodeString::getChar32Limit()
+ * (or, in C, the equivalent macros U16_SET_CP_START() and U16_SET_CP_LIMIT(), see utf.h).</p>
+ *
+ * UnicodeString methods are more lenient with regard to input parameter values
+ * than other ICU APIs. In particular:
+ * - If indexes are out of bounds for a UnicodeString object
+ *   (<0 or >length()) then they are "pinned" to the nearest boundary.
+ * - If primitive string pointer values (e.g., const char16_t * or char *)
+ *   for input strings are NULL, then those input string parameters are treated
+ *   as if they pointed to an empty string.
+ *   However, this is <em>not</em> the case for char * parameters for charset names
+ *   or other IDs.
+ * - Most UnicodeString methods do not take a UErrorCode parameter because
+ *   there are usually very few opportunities for failure other than a shortage
+ *   of memory, error codes in low-level C++ string methods would be inconvenient,
+ *   and the error code as the last parameter (ICU convention) would prevent
+ *   the use of default parameter values.
+ *   Instead, such methods set the UnicodeString into a "bogus" state
+ *   (see isBogus()) if an error occurs.
+ *
+ * In string comparisons, two UnicodeString objects that are both "bogus"
+ * compare equal (to be transitive and prevent endless loops in sorting),
+ * and a "bogus" string compares less than any non-"bogus" one.
+ *
+ * Const UnicodeString methods are thread-safe. Multiple threads can use
+ * const methods on the same UnicodeString object simultaneously,
+ * but non-const methods must not be called concurrently (in multiple threads)
+ * with any other (const or non-const) methods.
+ *
+ * Similarly, const UnicodeString & parameters are thread-safe.
+ * One object may be passed in as such a parameter concurrently in multiple threads.
+ * This includes the const UnicodeString & parameters for
+ * copy construction, assignment, and cloning.
+ *
+ * <p>UnicodeString uses several storage methods.
+ * String contents can be stored inside the UnicodeString object itself,
+ * in an allocated and shared buffer, or in an outside buffer that is "aliased".
+ * Most of this is done transparently, but careful aliasing in particular provides
+ * significant performance improvements.
+ * Also, the internal buffer is accessible via special functions.
+ * For details see the
+ * <a href="http://userguide.icu-project.org/strings#TOC-Maximizing-Performance-with-the-UnicodeString-Storage-Model">User Guide Strings chapter</a>.</p>
+ *
+ * @see utf.h
+ * @see CharacterIterator
+ * @stable ICU 2.0
+ */
+class U_COMMON_API UnicodeString : public Replaceable
+{
+public:
+
+  /**
+   * Constant to be used in the UnicodeString(char *, int32_t, EInvariant) constructor
+   * which constructs a Unicode string from an invariant-character char * string.
+   * Use the macro US_INV instead of the full qualification for this value.
+   *
+   * @see US_INV
+   * @stable ICU 3.2
+   */
+  enum EInvariant {
+    /**
+     * @see EInvariant
+     * @stable ICU 3.2
+     */
+    kInvariant
+  };
+
+  //========================================
+  // Read-only operations
+  //========================================
+
+  /* Comparison - bitwise only - for international comparison use collation */
+
+  /**
+   * Equality operator. Performs only bitwise comparison.
+   * @param text The UnicodeString to compare to this one.
+   * @return TRUE if <TT>text</TT> contains the same characters as this one,
+   * FALSE otherwise.
+   * @stable ICU 2.0
+   */
+  inline UBool operator== (const UnicodeString& text) const;
+
+  /**
+   * Inequality operator. Performs only bitwise comparison.
+   * @param text The UnicodeString to compare to this one.
+   * @return FALSE if <TT>text</TT> contains the same characters as this one,
+   * TRUE otherwise.
+   * @stable ICU 2.0
+   */
+  inline UBool operator!= (const UnicodeString& text) const;
+
+  /**
+   * Greater than operator. Performs only bitwise comparison.
+   * @param text The UnicodeString to compare to this one.
+   * @return TRUE if the characters in this are bitwise
+   * greater than the characters in <code>text</code>, FALSE otherwise
+   * @stable ICU 2.0
+   */
+  inline UBool operator> (const UnicodeString& text) const;
+
+  /**
+   * Less than operator. Performs only bitwise comparison.
+   * @param text The UnicodeString to compare to this one.
+   * @return TRUE if the characters in this are bitwise
+   * less than the characters in <code>text</code>, FALSE otherwise
+   * @stable ICU 2.0
+   */
+  inline UBool operator< (const UnicodeString& text) const;
+
+  /**
+   * Greater than or equal operator. Performs only bitwise comparison.
+   * @param text The UnicodeString to compare to this one.
+   * @return TRUE if the characters in this are bitwise
+   * greater than or equal to the characters in <code>text</code>, FALSE otherwise
+   * @stable ICU 2.0
+   */
+  inline UBool operator>= (const UnicodeString& text) const;
+
+  /**
+   * Less than or equal operator. Performs only bitwise comparison.
+   * @param text The UnicodeString to compare to this one.
+   * @return TRUE if the characters in this are bitwise
+   * less than or equal to the characters in <code>text</code>, FALSE otherwise
+   * @stable ICU 2.0
+   */
+  inline UBool operator<= (const UnicodeString& text) const;
+
+  /**
+   * Compare the characters bitwise in this UnicodeString to
+   * the characters in <code>text</code>.
+   * @param text The UnicodeString to compare to this one.
+   * @return The result of bitwise character comparison: 0 if this
+   * contains the same characters as <code>text</code>, -1 if the characters in
+   * this are bitwise less than the characters in <code>text</code>, +1 if the
+   * characters in this are bitwise greater than the characters
+   * in <code>text</code>.
+   * @stable ICU 2.0
+   */
+  inline int8_t compare(const UnicodeString& text) const;
+
+  /**
+   * Compare the characters bitwise in the range
+   * [<TT>start</TT>, <TT>start + length</TT>) with the characters
+   * in the <b>entire string</b> <TT>text</TT>.
+   * (The parameters "start" and "length" are not applied to the other text "text".)
+   * @param start the offset at which the compare operation begins
+   * @param length the number of characters of text to compare.
+   * @param text the other text to be compared against this string.
+   * @return The result of bitwise character comparison: 0 if this
+   * contains the same characters as <code>text</code>, -1 if the characters in
+   * this are bitwise less than the characters in <code>text</code>, +1 if the
+   * characters in this are bitwise greater than the characters
+   * in <code>text</code>.
+   * @stable ICU 2.0
+   */
+  inline int8_t compare(int32_t start,
+         int32_t length,
+         const UnicodeString& text) const;
+
+  /**
+   * Compare the characters bitwise in the range
+   * [<TT>start</TT>, <TT>start + length</TT>) with the characters
+   * in <TT>srcText</TT> in the range
+   * [<TT>srcStart</TT>, <TT>srcStart + srcLength</TT>).
+   * @param start the offset at which the compare operation begins
+   * @param length the number of characters in this to compare.
+   * @param srcText the text to be compared
+   * @param srcStart the offset into <TT>srcText</TT> to start comparison
+   * @param srcLength the number of characters in <TT>src</TT> to compare
+   * @return The result of bitwise character comparison: 0 if this
+   * contains the same characters as <code>srcText</code>, -1 if the characters in
+   * this are bitwise less than the characters in <code>srcText</code>, +1 if the
+   * characters in this are bitwise greater than the characters
+   * in <code>srcText</code>.
+   * @stable ICU 2.0
+   */
+   inline int8_t compare(int32_t start,
+         int32_t length,
+         const UnicodeString& srcText,
+         int32_t srcStart,
+         int32_t srcLength) const;
+
+  /**
+   * Compare the characters bitwise in this UnicodeString with the first
+   * <TT>srcLength</TT> characters in <TT>srcChars</TT>.
+   * @param srcChars The characters to compare to this UnicodeString.
+   * @param srcLength the number of characters in <TT>srcChars</TT> to compare
+   * @return The result of bitwise character comparison: 0 if this
+   * contains the same characters as <code>srcChars</code>, -1 if the characters in
+   * this are bitwise less than the characters in <code>srcChars</code>, +1 if the
+   * characters in this are bitwise greater than the characters
+   * in <code>srcChars</code>.
+   * @stable ICU 2.0
+   */
+  inline int8_t compare(ConstChar16Ptr srcChars,
+         int32_t srcLength) const;
+
+  /**
+   * Compare the characters bitwise in the range
+   * [<TT>start</TT>, <TT>start + length</TT>) with the first
+   * <TT>length</TT> characters in <TT>srcChars</TT>
+   * @param start the offset at which the compare operation begins
+   * @param length the number of characters to compare.
+   * @param srcChars the characters to be compared
+   * @return The result of bitwise character comparison: 0 if this
+   * contains the same characters as <code>srcChars</code>, -1 if the characters in
+   * this are bitwise less than the characters in <code>srcChars</code>, +1 if the
+   * characters in this are bitwise greater than the characters
+   * in <code>srcChars</code>.
+   * @stable ICU 2.0
+   */
+  inline int8_t compare(int32_t start,
+         int32_t length,
+         const char16_t *srcChars) const;
+
+  /**
+   * Compare the characters bitwise in the range
+   * [<TT>start</TT>, <TT>start + length</TT>) with the characters
+   * in <TT>srcChars</TT> in the range
+   * [<TT>srcStart</TT>, <TT>srcStart + srcLength</TT>).
+   * @param start the offset at which the compare operation begins
+   * @param length the number of characters in this to compare
+   * @param srcChars the characters to be compared
+   * @param srcStart the offset into <TT>srcChars</TT> to start comparison
+   * @param srcLength the number of characters in <TT>srcChars</TT> to compare
+   * @return The result of bitwise character comparison: 0 if this
+   * contains the same characters as <code>srcChars</code>, -1 if the characters in
+   * this are bitwise less than the characters in <code>srcChars</code>, +1 if the
+   * characters in this are bitwise greater than the characters
+   * in <code>srcChars</code>.
+   * @stable ICU 2.0
+   */
+  inline int8_t compare(int32_t start,
+         int32_t length,
+         const char16_t *srcChars,
+         int32_t srcStart,
+         int32_t srcLength) const;
+
+  /**
+   * Compare the characters bitwise in the range
+   * [<TT>start</TT>, <TT>limit</TT>) with the characters
+   * in <TT>srcText</TT> in the range
+   * [<TT>srcStart</TT>, <TT>srcLimit</TT>).
+   * @param start the offset at which the compare operation begins
+   * @param limit the offset immediately following the compare operation
+   * @param srcText the text to be compared
+   * @param srcStart the offset into <TT>srcText</TT> to start comparison
+   * @param srcLimit the offset into <TT>srcText</TT> to limit comparison
+   * @return The result of bitwise character comparison: 0 if this
+   * contains the same characters as <code>srcText</code>, -1 if the characters in
+   * this are bitwise less than the characters in <code>srcText</code>, +1 if the
+   * characters in this are bitwise greater than the characters
+   * in <code>srcText</code>.
+   * @stable ICU 2.0
+   */
+  inline int8_t compareBetween(int32_t start,
+            int32_t limit,
+            const UnicodeString& srcText,
+            int32_t srcStart,
+            int32_t srcLimit) const;
+
+  /**
+   * Compare two Unicode strings in code point order.
+   * The result may be different from the results of compare(), operator<, etc.
+   * if supplementary characters are present:
+   *
+   * In UTF-16, supplementary characters (with code points U+10000 and above) are
+   * stored with pairs of surrogate code units. These have values from 0xd800 to 0xdfff,
+   * which means that they compare as less than some other BMP characters like U+feff.
+   * This function compares Unicode strings in code point order.
+   * If either of the UTF-16 strings is malformed (i.e., it contains unpaired surrogates), then the result is not defined.
+   *
+   * @param text Another string to compare this one to.
+   * @return a negative/zero/positive integer corresponding to whether
+   * this string is less than/equal to/greater than the second one
+   * in code point order
+   * @stable ICU 2.0
+   */
+  inline int8_t compareCodePointOrder(const UnicodeString& text) const;
+
+  /**
+   * Compare two Unicode strings in code point order.
+   * The result may be different from the results of compare(), operator<, etc.
+   * if supplementary characters are present:
+   *
+   * In UTF-16, supplementary characters (with code points U+10000 and above) are
+   * stored with pairs of surrogate code units. These have values from 0xd800 to 0xdfff,
+   * which means that they compare as less than some other BMP characters like U+feff.
+   * This function compares Unicode strings in code point order.
+   * If either of the UTF-16 strings is malformed (i.e., it contains unpaired surrogates), then the result is not defined.
+   *
+   * @param start The start offset in this string at which the compare operation begins.
+   * @param length The number of code units from this string to compare.
+   * @param srcText Another string to compare this one to.
+   * @return a negative/zero/positive integer corresponding to whether
+   * this string is less than/equal to/greater than the second one
+   * in code point order
+   * @stable ICU 2.0
+   */
+  inline int8_t compareCodePointOrder(int32_t start,
+                                      int32_t length,
+                                      const UnicodeString& srcText) const;
+
+  /**
+   * Compare two Unicode strings in code point order.
+   * The result may be different from the results of compare(), operator<, etc.
+   * if supplementary characters are present:
+   *
+   * In UTF-16, supplementary characters (with code points U+10000 and above) are
+   * stored with pairs of surrogate code units. These have values from 0xd800 to 0xdfff,
+   * which means that they compare as less than some other BMP characters like U+feff.
+   * This function compares Unicode strings in code point order.
+   * If either of the UTF-16 strings is malformed (i.e., it contains unpaired surrogates), then the result is not defined.
+   *
+   * @param start The start offset in this string at which the compare operation begins.
+   * @param length The number of code units from this string to compare.
+   * @param srcText Another string to compare this one to.
+   * @param srcStart The start offset in that string at which the compare operation begins.
+   * @param srcLength The number of code units from that string to compare.
+   * @return a negative/zero/positive integer corresponding to whether
+   * this string is less than/equal to/greater than the second one
+   * in code point order
+   * @stable ICU 2.0
+   */
+   inline int8_t compareCodePointOrder(int32_t start,
+                                       int32_t length,
+                                       const UnicodeString& srcText,
+                                       int32_t srcStart,
+                                       int32_t srcLength) const;
+
+  /**
+   * Compare two Unicode strings in code point order.
+   * The result may be different from the results of compare(), operator<, etc.
+   * if supplementary characters are present:
+   *
+   * In UTF-16, supplementary characters (with code points U+10000 and above) are
+   * stored with pairs of surrogate code units. These have values from 0xd800 to 0xdfff,
+   * which means that they compare as less than some other BMP characters like U+feff.
+   * This function compares Unicode strings in code point order.
+   * If either of the UTF-16 strings is malformed (i.e., it contains unpaired surrogates), then the result is not defined.
+   *
+   * @param srcChars A pointer to another string to compare this one to.
+   * @param srcLength The number of code units from that string to compare.
+   * @return a negative/zero/positive integer corresponding to whether
+   * this string is less than/equal to/greater than the second one
+   * in code point order
+   * @stable ICU 2.0
+   */
+  inline int8_t compareCodePointOrder(ConstChar16Ptr srcChars,
+                                      int32_t srcLength) const;
+
+  /**
+   * Compare two Unicode strings in code point order.
+   * The result may be different from the results of compare(), operator<, etc.
+   * if supplementary characters are present:
+   *
+   * In UTF-16, supplementary characters (with code points U+10000 and above) are
+   * stored with pairs of surrogate code units. These have values from 0xd800 to 0xdfff,
+   * which means that they compare as less than some other BMP characters like U+feff.
+   * This function compares Unicode strings in code point order.
+   * If either of the UTF-16 strings is malformed (i.e., it contains unpaired surrogates), then the result is not defined.
+   *
+   * @param start The start offset in this string at which the compare operation begins.
+   * @param length The number of code units from this string to compare.
+   * @param srcChars A pointer to another string to compare this one to.
+   * @return a negative/zero/positive integer corresponding to whether
+   * this string is less than/equal to/greater than the second one
+   * in code point order
+   * @stable ICU 2.0
+   */
+  inline int8_t compareCodePointOrder(int32_t start,
+                                      int32_t length,
+                                      const char16_t *srcChars) const;
+
+  /**
+   * Compare two Unicode strings in code point order.
+   * The result may be different from the results of compare(), operator<, etc.
+   * if supplementary characters are present:
+   *
+   * In UTF-16, supplementary characters (with code points U+10000 and above) are
+   * stored with pairs of surrogate code units. These have values from 0xd800 to 0xdfff,
+   * which means that they compare as less than some other BMP characters like U+feff.
+   * This function compares Unicode strings in code point order.
+   * If either of the UTF-16 strings is malformed (i.e., it contains unpaired surrogates), then the result is not defined.
+   *
+   * @param start The start offset in this string at which the compare operation begins.
+   * @param length The number of code units from this string to compare.
+   * @param srcChars A pointer to another string to compare this one to.
+   * @param srcStart The start offset in that string at which the compare operation begins.
+   * @param srcLength The number of code units from that string to compare.
+   * @return a negative/zero/positive integer corresponding to whether
+   * this string is less than/equal to/greater than the second one
+   * in code point order
+   * @stable ICU 2.0
+   */
+  inline int8_t compareCodePointOrder(int32_t start,
+                                      int32_t length,
+                                      const char16_t *srcChars,
+                                      int32_t srcStart,
+                                      int32_t srcLength) const;
+
+  /**
+   * Compare two Unicode strings in code point order.
+   * The result may be different from the results of compare(), operator<, etc.
+   * if supplementary characters are present:
+   *
+   * In UTF-16, supplementary characters (with code points U+10000 and above) are
+   * stored with pairs of surrogate code units. These have values from 0xd800 to 0xdfff,
+   * which means that they compare as less than some other BMP characters like U+feff.
+   * This function compares Unicode strings in code point order.
+   * If either of the UTF-16 strings is malformed (i.e., it contains unpaired surrogates), then the result is not defined.
+   *
+   * @param start The start offset in this string at which the compare operation begins.
+   * @param limit The offset after the last code unit from this string to compare.
+   * @param srcText Another string to compare this one to.
+   * @param srcStart The start offset in that string at which the compare operation begins.
+   * @param srcLimit The offset after the last code unit from that string to compare.
+   * @return a negative/zero/positive integer corresponding to whether
+   * this string is less than/equal to/greater than the second one
+   * in code point order
+   * @stable ICU 2.0
+   */
+  inline int8_t compareCodePointOrderBetween(int32_t start,
+                                             int32_t limit,
+                                             const UnicodeString& srcText,
+                                             int32_t srcStart,
+                                             int32_t srcLimit) const;
+
+  /**
+   * Compare two strings case-insensitively using full case folding.
+   * This is equivalent to this->foldCase(options).compare(text.foldCase(options)).
+   *
+   * @param text Another string to compare this one to.
+   * @param options A bit set of options:
+   *   - U_FOLD_CASE_DEFAULT or 0 is used for default options:
+   *     Comparison in code unit order with default case folding.
+   *
+   *   - U_COMPARE_CODE_POINT_ORDER
+   *     Set to choose code point order instead of code unit order
+   *     (see u_strCompare for details).
+   *
+   *   - U_FOLD_CASE_EXCLUDE_SPECIAL_I
+   *
+   * @return A negative, zero, or positive integer indicating the comparison result.
+   * @stable ICU 2.0
+   */
+  inline int8_t caseCompare(const UnicodeString& text, uint32_t options) const;
+
+  /**
+   * Compare two strings case-insensitively using full case folding.
+   * This is equivalent to this->foldCase(options).compare(srcText.foldCase(options)).
+   *
+   * @param start The start offset in this string at which the compare operation begins.
+   * @param length The number of code units from this string to compare.
+   * @param srcText Another string to compare this one to.
+   * @param options A bit set of options:
+   *   - U_FOLD_CASE_DEFAULT or 0 is used for default options:
+   *     Comparison in code unit order with default case folding.
+   *
+   *   - U_COMPARE_CODE_POINT_ORDER
+   *     Set to choose code point order instead of code unit order
+   *     (see u_strCompare for details).
+   *
+   *   - U_FOLD_CASE_EXCLUDE_SPECIAL_I
+   *
+   * @return A negative, zero, or positive integer indicating the comparison result.
+   * @stable ICU 2.0
+   */
+  inline int8_t caseCompare(int32_t start,
+         int32_t length,
+         const UnicodeString& srcText,
+         uint32_t options) const;
+
+  /**
+   * Compare two strings case-insensitively using full case folding.
+   * This is equivalent to this->foldCase(options).compare(srcText.foldCase(options)).
+   *
+   * @param start The start offset in this string at which the compare operation begins.
+   * @param length The number of code units from this string to compare.
+   * @param srcText Another string to compare this one to.
+   * @param srcStart The start offset in that string at which the compare operation begins.
+   * @param srcLength The number of code units from that string to compare.
+   * @param options A bit set of options:
+   *   - U_FOLD_CASE_DEFAULT or 0 is used for default options:
+   *     Comparison in code unit order with default case folding.
+   *
+   *   - U_COMPARE_CODE_POINT_ORDER
+   *     Set to choose code point order instead of code unit order
+   *     (see u_strCompare for details).
+   *
+   *   - U_FOLD_CASE_EXCLUDE_SPECIAL_I
+   *
+   * @return A negative, zero, or positive integer indicating the comparison result.
+   * @stable ICU 2.0
+   */
+  inline int8_t caseCompare(int32_t start,
+         int32_t length,
+         const UnicodeString& srcText,
+         int32_t srcStart,
+         int32_t srcLength,
+         uint32_t options) const;
+
+  /**
+   * Compare two strings case-insensitively using full case folding.
+   * This is equivalent to this->foldCase(options).compare(srcChars.foldCase(options)).
+   *
+   * @param srcChars A pointer to another string to compare this one to.
+   * @param srcLength The number of code units from that string to compare.
+   * @param options A bit set of options:
+   *   - U_FOLD_CASE_DEFAULT or 0 is used for default options:
+   *     Comparison in code unit order with default case folding.
+   *
+   *   - U_COMPARE_CODE_POINT_ORDER
+   *     Set to choose code point order instead of code unit order
+   *     (see u_strCompare for details).
+   *
+   *   - U_FOLD_CASE_EXCLUDE_SPECIAL_I
+   *
+   * @return A negative, zero, or positive integer indicating the comparison result.
+   * @stable ICU 2.0
+   */
+  inline int8_t caseCompare(ConstChar16Ptr srcChars,
+         int32_t srcLength,
+         uint32_t options) const;
+
+  /**
+   * Compare two strings case-insensitively using full case folding.
+   * This is equivalent to this->foldCase(options).compare(srcChars.foldCase(options)).
+   *
+   * @param start The start offset in this string at which the compare operation begins.
+   * @param length The number of code units from this string to compare.
+   * @param srcChars A pointer to another string to compare this one to.
+   * @param options A bit set of options:
+   *   - U_FOLD_CASE_DEFAULT or 0 is used for default options:
+   *     Comparison in code unit order with default case folding.
+   *
+   *   - U_COMPARE_CODE_POINT_ORDER
+   *     Set to choose code point order instead of code unit order
+   *     (see u_strCompare for details).
+   *
+   *   - U_FOLD_CASE_EXCLUDE_SPECIAL_I
+   *
+   * @return A negative, zero, or positive integer indicating the comparison result.
+   * @stable ICU 2.0
+   */
+  inline int8_t caseCompare(int32_t start,
+         int32_t length,
+         const char16_t *srcChars,
+         uint32_t options) const;
+
+  /**
+   * Compare two strings case-insensitively using full case folding.
+   * This is equivalent to this->foldCase(options).compare(srcChars.foldCase(options)).
+   *
+   * @param start The start offset in this string at which the compare operation begins.
+   * @param length The number of code units from this string to compare.
+   * @param srcChars A pointer to another string to compare this one to.
+   * @param srcStart The start offset in that string at which the compare operation begins.
+   * @param srcLength The number of code units from that string to compare.
+   * @param options A bit set of options:
+   *   - U_FOLD_CASE_DEFAULT or 0 is used for default options:
+   *     Comparison in code unit order with default case folding.
+   *
+   *   - U_COMPARE_CODE_POINT_ORDER
+   *     Set to choose code point order instead of code unit order
+   *     (see u_strCompare for details).
+   *
+   *   - U_FOLD_CASE_EXCLUDE_SPECIAL_I
+   *
+   * @return A negative, zero, or positive integer indicating the comparison result.
+   * @stable ICU 2.0
+   */
+  inline int8_t caseCompare(int32_t start,
+         int32_t length,
+         const char16_t *srcChars,
+         int32_t srcStart,
+         int32_t srcLength,
+         uint32_t options) const;
+
+  /**
+   * Compare two strings case-insensitively using full case folding.
+   * This is equivalent to this->foldCase(options).compareBetween(text.foldCase(options)).
+   *
+   * @param start The start offset in this string at which the compare operation begins.
+   * @param limit The offset after the last code unit from this string to compare.
+   * @param srcText Another string to compare this one to.
+   * @param srcStart The start offset in that string at which the compare operation begins.
+   * @param srcLimit The offset after the last code unit from that string to compare.
+   * @param options A bit set of options:
+   *   - U_FOLD_CASE_DEFAULT or 0 is used for default options:
+   *     Comparison in code unit order with default case folding.
+   *
+   *   - U_COMPARE_CODE_POINT_ORDER
+   *     Set to choose code point order instead of code unit order
+   *     (see u_strCompare for details).
+   *
+   *   - U_FOLD_CASE_EXCLUDE_SPECIAL_I
+   *
+   * @return A negative, zero, or positive integer indicating the comparison result.
+   * @stable ICU 2.0
+   */
+  inline int8_t caseCompareBetween(int32_t start,
+            int32_t limit,
+            const UnicodeString& srcText,
+            int32_t srcStart,
+            int32_t srcLimit,
+            uint32_t options) const;
+
+  /**
+   * Determine if this starts with the characters in <TT>text</TT>
+   * @param text The text to match.
+   * @return TRUE if this starts with the characters in <TT>text</TT>,
+   * FALSE otherwise
+   * @stable ICU 2.0
+   */
+  inline UBool startsWith(const UnicodeString& text) const;
+
+  /**
+   * Determine if this starts with the characters in <TT>srcText</TT>
+   * in the range [<TT>srcStart</TT>, <TT>srcStart + srcLength</TT>).
+   * @param srcText The text to match.
+   * @param srcStart the offset into <TT>srcText</TT> to start matching
+   * @param srcLength the number of characters in <TT>srcText</TT> to match
+   * @return TRUE if this starts with the characters in <TT>text</TT>,
+   * FALSE otherwise
+   * @stable ICU 2.0
+   */
+  inline UBool startsWith(const UnicodeString& srcText,
+            int32_t srcStart,
+            int32_t srcLength) const;
+
+  /**
+   * Determine if this starts with the characters in <TT>srcChars</TT>
+   * @param srcChars The characters to match.
+   * @param srcLength the number of characters in <TT>srcChars</TT>
+   * @return TRUE if this starts with the characters in <TT>srcChars</TT>,
+   * FALSE otherwise
+   * @stable ICU 2.0
+   */
+  inline UBool startsWith(ConstChar16Ptr srcChars,
+            int32_t srcLength) const;
+
+  /**
+   * Determine if this ends with the characters in <TT>srcChars</TT>
+   * in the range  [<TT>srcStart</TT>, <TT>srcStart + srcLength</TT>).
+   * @param srcChars The characters to match.
+   * @param srcStart the offset into <TT>srcText</TT> to start matching
+   * @param srcLength the number of characters in <TT>srcChars</TT> to match
+   * @return TRUE if this ends with the characters in <TT>srcChars</TT>, FALSE otherwise
+   * @stable ICU 2.0
+   */
+  inline UBool startsWith(const char16_t *srcChars,
+            int32_t srcStart,
+            int32_t srcLength) const;
+
+  /**
+   * Determine if this ends with the characters in <TT>text</TT>
+   * @param text The text to match.
+   * @return TRUE if this ends with the characters in <TT>text</TT>,
+   * FALSE otherwise
+   * @stable ICU 2.0
+   */
+  inline UBool endsWith(const UnicodeString& text) const;
+
+  /**
+   * Determine if this ends with the characters in <TT>srcText</TT>
+   * in the range [<TT>srcStart</TT>, <TT>srcStart + srcLength</TT>).
+   * @param srcText The text to match.
+   * @param srcStart the offset into <TT>srcText</TT> to start matching
+   * @param srcLength the number of characters in <TT>srcText</TT> to match
+   * @return TRUE if this ends with the characters in <TT>text</TT>,
+   * FALSE otherwise
+   * @stable ICU 2.0
+   */
+  inline UBool endsWith(const UnicodeString& srcText,
+          int32_t srcStart,
+          int32_t srcLength) const;
+
+  /**
+   * Determine if this ends with the characters in <TT>srcChars</TT>
+   * @param srcChars The characters to match.
+   * @param srcLength the number of characters in <TT>srcChars</TT>
+   * @return TRUE if this ends with the characters in <TT>srcChars</TT>,
+   * FALSE otherwise
+   * @stable ICU 2.0
+   */
+  inline UBool endsWith(ConstChar16Ptr srcChars,
+          int32_t srcLength) const;
+
+  /**
+   * Determine if this ends with the characters in <TT>srcChars</TT>
+   * in the range  [<TT>srcStart</TT>, <TT>srcStart + srcLength</TT>).
+   * @param srcChars The characters to match.
+   * @param srcStart the offset into <TT>srcText</TT> to start matching
+   * @param srcLength the number of characters in <TT>srcChars</TT> to match
+   * @return TRUE if this ends with the characters in <TT>srcChars</TT>,
+   * FALSE otherwise
+   * @stable ICU 2.0
+   */
+  inline UBool endsWith(const char16_t *srcChars,
+          int32_t srcStart,
+          int32_t srcLength) const;
+
+
+  /* Searching - bitwise only */
+
+  /**
+   * Locate in this the first occurrence of the characters in <TT>text</TT>,
+   * using bitwise comparison.
+   * @param text The text to search for.
+   * @return The offset into this of the start of <TT>text</TT>,
+   * or -1 if not found.
+   * @stable ICU 2.0
+   */
+  inline int32_t indexOf(const UnicodeString& text) const;
+
+  /**
+   * Locate in this the first occurrence of the characters in <TT>text</TT>
+   * starting at offset <TT>start</TT>, using bitwise comparison.
+   * @param text The text to search for.
+   * @param start The offset at which searching will start.
+   * @return The offset into this of the start of <TT>text</TT>,
+   * or -1 if not found.
+   * @stable ICU 2.0
+   */
+  inline int32_t indexOf(const UnicodeString& text,
+              int32_t start) const;
+
+  /**
+   * Locate in this the first occurrence in the range
+   * [<TT>start</TT>, <TT>start + length</TT>) of the characters
+   * in <TT>text</TT>, using bitwise comparison.
+   * @param text The text to search for.
+   * @param start The offset at which searching will start.
+   * @param length The number of characters to search
+   * @return The offset into this of the start of <TT>text</TT>,
+   * or -1 if not found.
+   * @stable ICU 2.0
+   */
+  inline int32_t indexOf(const UnicodeString& text,
+              int32_t start,
+              int32_t length) const;
+
+  /**
+   * Locate in this the first occurrence in the range
+   * [<TT>start</TT>, <TT>start + length</TT>) of the characters
+   *  in <TT>srcText</TT> in the range
+   * [<TT>srcStart</TT>, <TT>srcStart + srcLength</TT>),
+   * using bitwise comparison.
+   * @param srcText The text to search for.
+   * @param srcStart the offset into <TT>srcText</TT> at which
+   * to start matching
+   * @param srcLength the number of characters in <TT>srcText</TT> to match
+   * @param start the offset into this at which to start matching
+   * @param length the number of characters in this to search
+   * @return The offset into this of the start of <TT>text</TT>,
+   * or -1 if not found.
+   * @stable ICU 2.0
+   */
+  inline int32_t indexOf(const UnicodeString& srcText,
+              int32_t srcStart,
+              int32_t srcLength,
+              int32_t start,
+              int32_t length) const;
+
+  /**
+   * Locate in this the first occurrence of the characters in
+   * <TT>srcChars</TT>
+   * starting at offset <TT>start</TT>, using bitwise comparison.
+   * @param srcChars The text to search for.
+   * @param srcLength the number of characters in <TT>srcChars</TT> to match
+   * @param start the offset into this at which to start matching
+   * @return The offset into this of the start of <TT>text</TT>,
+   * or -1 if not found.
+   * @stable ICU 2.0
+   */
+  inline int32_t indexOf(const char16_t *srcChars,
+              int32_t srcLength,
+              int32_t start) const;
+
+  /**
+   * Locate in this the first occurrence in the range
+   * [<TT>start</TT>, <TT>start + length</TT>) of the characters
+   * in <TT>srcChars</TT>, using bitwise comparison.
+   * @param srcChars The text to search for.
+   * @param srcLength the number of characters in <TT>srcChars</TT>
+   * @param start The offset at which searching will start.
+   * @param length The number of characters to search
+   * @return The offset into this of the start of <TT>srcChars</TT>,
+   * or -1 if not found.
+   * @stable ICU 2.0
+   */
+  inline int32_t indexOf(ConstChar16Ptr srcChars,
+              int32_t srcLength,
+              int32_t start,
+              int32_t length) const;
+
+  /**
+   * Locate in this the first occurrence in the range
+   * [<TT>start</TT>, <TT>start + length</TT>) of the characters
+   * in <TT>srcChars</TT> in the range
+   * [<TT>srcStart</TT>, <TT>srcStart + srcLength</TT>),
+   * using bitwise comparison.
+   * @param srcChars The text to search for.
+   * @param srcStart the offset into <TT>srcChars</TT> at which
+   * to start matching
+   * @param srcLength the number of characters in <TT>srcChars</TT> to match
+   * @param start the offset into this at which to start matching
+   * @param length the number of characters in this to search
+   * @return The offset into this of the start of <TT>text</TT>,
+   * or -1 if not found.
+   * @stable ICU 2.0
+   */
+  int32_t indexOf(const char16_t *srcChars,
+              int32_t srcStart,
+              int32_t srcLength,
+              int32_t start,
+              int32_t length) const;
+
+  /**
+   * Locate in this the first occurrence of the BMP code point <code>c</code>,
+   * using bitwise comparison.
+   * @param c The code unit to search for.
+   * @return The offset into this of <TT>c</TT>, or -1 if not found.
+   * @stable ICU 2.0
+   */
+  inline int32_t indexOf(char16_t c) const;
+
+  /**
+   * Locate in this the first occurrence of the code point <TT>c</TT>,
+   * using bitwise comparison.
+   *
+   * @param c The code point to search for.
+   * @return The offset into this of <TT>c</TT>, or -1 if not found.
+   * @stable ICU 2.0
+   */
+  inline int32_t indexOf(UChar32 c) const;
+
+  /**
+   * Locate in this the first occurrence of the BMP code point <code>c</code>,
+   * starting at offset <TT>start</TT>, using bitwise comparison.
+   * @param c The code unit to search for.
+   * @param start The offset at which searching will start.
+   * @return The offset into this of <TT>c</TT>, or -1 if not found.
+   * @stable ICU 2.0
+   */
+  inline int32_t indexOf(char16_t c,
+              int32_t start) const;
+
+  /**
+   * Locate in this the first occurrence of the code point <TT>c</TT>
+   * starting at offset <TT>start</TT>, using bitwise comparison.
+   *
+   * @param c The code point to search for.
+   * @param start The offset at which searching will start.
+   * @return The offset into this of <TT>c</TT>, or -1 if not found.
+   * @stable ICU 2.0
+   */
+  inline int32_t indexOf(UChar32 c,
+              int32_t start) const;
+
+  /**
+   * Locate in this the first occurrence of the BMP code point <code>c</code>
+   * in the range [<TT>start</TT>, <TT>start + length</TT>),
+   * using bitwise comparison.
+   * @param c The code unit to search for.
+   * @param start the offset into this at which to start matching
+   * @param length the number of characters in this to search
+   * @return The offset into this of <TT>c</TT>, or -1 if not found.
+   * @stable ICU 2.0
+   */
+  inline int32_t indexOf(char16_t c,
+              int32_t start,
+              int32_t length) const;
+
+  /**
+   * Locate in this the first occurrence of the code point <TT>c</TT>
+   * in the range [<TT>start</TT>, <TT>start + length</TT>),
+   * using bitwise comparison.
+   *
+   * @param c The code point to search for.
+   * @param start the offset into this at which to start matching
+   * @param length the number of characters in this to search
+   * @return The offset into this of <TT>c</TT>, or -1 if not found.
+   * @stable ICU 2.0
+   */
+  inline int32_t indexOf(UChar32 c,
+              int32_t start,
+              int32_t length) const;
+
+  /**
+   * Locate in this the last occurrence of the characters in <TT>text</TT>,
+   * using bitwise comparison.
+   * @param text The text to search for.
+   * @return The offset into this of the start of <TT>text</TT>,
+   * or -1 if not found.
+   * @stable ICU 2.0
+   */
+  inline int32_t lastIndexOf(const UnicodeString& text) const;
+
+  /**
+   * Locate in this the last occurrence of the characters in <TT>text</TT>
+   * starting at offset <TT>start</TT>, using bitwise comparison.
+   * @param text The text to search for.
+   * @param start The offset at which searching will start.
+   * @return The offset into this of the start of <TT>text</TT>,
+   * or -1 if not found.
+   * @stable ICU 2.0
+   */
+  inline int32_t lastIndexOf(const UnicodeString& text,
+              int32_t start) const;
+
+  /**
+   * Locate in this the last occurrence in the range
+   * [<TT>start</TT>, <TT>start + length</TT>) of the characters
+   * in <TT>text</TT>, using bitwise comparison.
+   * @param text The text to search for.
+   * @param start The offset at which searching will start.
+   * @param length The number of characters to search
+   * @return The offset into this of the start of <TT>text</TT>,
+   * or -1 if not found.
+   * @stable ICU 2.0
+   */
+  inline int32_t lastIndexOf(const UnicodeString& text,
+              int32_t start,
+              int32_t length) const;
+
+  /**
+   * Locate in this the last occurrence in the range
+   * [<TT>start</TT>, <TT>start + length</TT>) of the characters
+   * in <TT>srcText</TT> in the range
+   * [<TT>srcStart</TT>, <TT>srcStart + srcLength</TT>),
+   * using bitwise comparison.
+   * @param srcText The text to search for.
+   * @param srcStart the offset into <TT>srcText</TT> at which
+   * to start matching
+   * @param srcLength the number of characters in <TT>srcText</TT> to match
+   * @param start the offset into this at which to start matching
+   * @param length the number of characters in this to search
+   * @return The offset into this of the start of <TT>text</TT>,
+   * or -1 if not found.
+   * @stable ICU 2.0
+   */
+  inline int32_t lastIndexOf(const UnicodeString& srcText,
+              int32_t srcStart,
+              int32_t srcLength,
+              int32_t start,
+              int32_t length) const;
+
+  /**
+   * Locate in this the last occurrence of the characters in <TT>srcChars</TT>
+   * starting at offset <TT>start</TT>, using bitwise comparison.
+   * @param srcChars The text to search for.
+   * @param srcLength the number of characters in <TT>srcChars</TT> to match
+   * @param start the offset into this at which to start matching
+   * @return The offset into this of the start of <TT>text</TT>,
+   * or -1 if not found.
+   * @stable ICU 2.0
+   */
+  inline int32_t lastIndexOf(const char16_t *srcChars,
+              int32_t srcLength,
+              int32_t start) const;
+
+  /**
+   * Locate in this the last occurrence in the range
+   * [<TT>start</TT>, <TT>start + length</TT>) of the characters
+   * in <TT>srcChars</TT>, using bitwise comparison.
+   * @param srcChars The text to search for.
+   * @param srcLength the number of characters in <TT>srcChars</TT>
+   * @param start The offset at which searching will start.
+   * @param length The number of characters to search
+   * @return The offset into this of the start of <TT>srcChars</TT>,
+   * or -1 if not found.
+   * @stable ICU 2.0
+   */
+  inline int32_t lastIndexOf(ConstChar16Ptr srcChars,
+              int32_t srcLength,
+              int32_t start,
+              int32_t length) const;
+
+  /**
+   * Locate in this the last occurrence in the range
+   * [<TT>start</TT>, <TT>start + length</TT>) of the characters
+   * in <TT>srcChars</TT> in the range
+   * [<TT>srcStart</TT>, <TT>srcStart + srcLength</TT>),
+   * using bitwise comparison.
+   * @param srcChars The text to search for.
+   * @param srcStart the offset into <TT>srcChars</TT> at which
+   * to start matching
+   * @param srcLength the number of characters in <TT>srcChars</TT> to match
+   * @param start the offset into this at which to start matching
+   * @param length the number of characters in this to search
+   * @return The offset into this of the start of <TT>text</TT>,
+   * or -1 if not found.
+   * @stable ICU 2.0
+   */
+  int32_t lastIndexOf(const char16_t *srcChars,
+              int32_t srcStart,
+              int32_t srcLength,
+              int32_t start,
+              int32_t length) const;
+
+  /**
+   * Locate in this the last occurrence of the BMP code point <code>c</code>,
+   * using bitwise comparison.
+   * @param c The code unit to search for.
+   * @return The offset into this of <TT>c</TT>, or -1 if not found.
+   * @stable ICU 2.0
+   */
+  inline int32_t lastIndexOf(char16_t c) const;
+
+  /**
+   * Locate in this the last occurrence of the code point <TT>c</TT>,
+   * using bitwise comparison.
+   *
+   * @param c The code point to search for.
+   * @return The offset into this of <TT>c</TT>, or -1 if not found.
+   * @stable ICU 2.0
+   */
+  inline int32_t lastIndexOf(UChar32 c) const;
+
+  /**
+   * Locate in this the last occurrence of the BMP code point <code>c</code>
+   * starting at offset <TT>start</TT>, using bitwise comparison.
+   * @param c The code unit to search for.
+   * @param start The offset at which searching will start.
+   * @return The offset into this of <TT>c</TT>, or -1 if not found.
+   * @stable ICU 2.0
+   */
+  inline int32_t lastIndexOf(char16_t c,
+              int32_t start) const;
+
+  /**
+   * Locate in this the last occurrence of the code point <TT>c</TT>
+   * starting at offset <TT>start</TT>, using bitwise comparison.
+   *
+   * @param c The code point to search for.
+   * @param start The offset at which searching will start.
+   * @return The offset into this of <TT>c</TT>, or -1 if not found.
+   * @stable ICU 2.0
+   */
+  inline int32_t lastIndexOf(UChar32 c,
+              int32_t start) const;
+
+  /**
+   * Locate in this the last occurrence of the BMP code point <code>c</code>
+   * in the range [<TT>start</TT>, <TT>start + length</TT>),
+   * using bitwise comparison.
+   * @param c The code unit to search for.
+   * @param start the offset into this at which to start matching
+   * @param length the number of characters in this to search
+   * @return The offset into this of <TT>c</TT>, or -1 if not found.
+   * @stable ICU 2.0
+   */
+  inline int32_t lastIndexOf(char16_t c,
+              int32_t start,
+              int32_t length) const;
+
+  /**
+   * Locate in this the last occurrence of the code point <TT>c</TT>
+   * in the range [<TT>start</TT>, <TT>start + length</TT>),
+   * using bitwise comparison.
+   *
+   * @param c The code point to search for.
+   * @param start the offset into this at which to start matching
+   * @param length the number of characters in this to search
+   * @return The offset into this of <TT>c</TT>, or -1 if not found.
+   * @stable ICU 2.0
+   */
+  inline int32_t lastIndexOf(UChar32 c,
+              int32_t start,
+              int32_t length) const;
+
+
+  /* Character access */
+
+  /**
+   * Return the code unit at offset <tt>offset</tt>.
+   * If the offset is not valid (0..length()-1) then U+ffff is returned.
+   * @param offset a valid offset into the text
+   * @return the code unit at offset <tt>offset</tt>
+   *         or 0xffff if the offset is not valid for this string
+   * @stable ICU 2.0
+   */
+  inline char16_t charAt(int32_t offset) const;
+
+  /**
+   * Return the code unit at offset <tt>offset</tt>.
+   * If the offset is not valid (0..length()-1) then U+ffff is returned.
+   * @param offset a valid offset into the text
+   * @return the code unit at offset <tt>offset</tt>
+   * @stable ICU 2.0
+   */
+  inline char16_t operator[] (int32_t offset) const;
+
+  /**
+   * Return the code point that contains the code unit
+   * at offset <tt>offset</tt>.
+   * If the offset is not valid (0..length()-1) then U+ffff is returned.
+   * @param offset a valid offset into the text
+   * that indicates the text offset of any of the code units
+   * that will be assembled into a code point (21-bit value) and returned
+   * @return the code point of text at <tt>offset</tt>
+   *         or 0xffff if the offset is not valid for this string
+   * @stable ICU 2.0
+   */
+  UChar32 char32At(int32_t offset) const;
+
+  /**
+   * Adjust a random-access offset so that
+   * it points to the beginning of a Unicode character.
+   * The offset that is passed in points to
+   * any code unit of a code point,
+   * while the returned offset will point to the first code unit
+   * of the same code point.
+   * In UTF-16, if the input offset points to a second surrogate
+   * of a surrogate pair, then the returned offset will point
+   * to the first surrogate.
+   * @param offset a valid offset into one code point of the text
+   * @return offset of the first code unit of the same code point
+   * @see U16_SET_CP_START
+   * @stable ICU 2.0
+   */
+  int32_t getChar32Start(int32_t offset) const;
+
+  /**
+   * Adjust a random-access offset so that
+   * it points behind a Unicode character.
+   * The offset that is passed in points behind
+   * any code unit of a code point,
+   * while the returned offset will point behind the last code unit
+   * of the same code point.
+   * In UTF-16, if the input offset points behind the first surrogate
+   * (i.e., to the second surrogate)
+   * of a surrogate pair, then the returned offset will point
+   * behind the second surrogate (i.e., to the first surrogate).
+   * @param offset a valid offset after any code unit of a code point of the text
+   * @return offset of the first code unit after the same code point
+   * @see U16_SET_CP_LIMIT
+   * @stable ICU 2.0
+   */
+  int32_t getChar32Limit(int32_t offset) const;
+
+  /**
+   * Move the code unit index along the string by delta code points.
+   * Interpret the input index as a code unit-based offset into the string,
+   * move the index forward or backward by delta code points, and
+   * return the resulting index.
+   * The input index should point to the first code unit of a code point,
+   * if there is more than one.
+   *
+   * Both input and output indexes are code unit-based as for all
+   * string indexes/offsets in ICU (and other libraries, like MBCS char*).
+   * If delta<0 then the index is moved backward (toward the start of the string).
+   * If delta>0 then the index is moved forward (toward the end of the string).
+   *
+   * This behaves like CharacterIterator::move32(delta, kCurrent).
+   *
+   * Behavior for out-of-bounds indexes:
+   * <code>moveIndex32</code> pins the input index to 0..length(), i.e.,
+   * if the input index<0 then it is pinned to 0;
+   * if it is index>length() then it is pinned to length().
+   * Afterwards, the index is moved by <code>delta</code> code points
+   * forward or backward,
+   * but no further backward than to 0 and no further forward than to length().
+   * The resulting index return value will be in between 0 and length(), inclusively.
+   *
+   * Examples:
+   * <pre>
+   * // s has code points 'a' U+10000 'b' U+10ffff U+2029
+   * UnicodeString s=UNICODE_STRING("a\\U00010000b\\U0010ffff\\u2029", 31).unescape();
+   *
+   * // initial index: position of U+10000
+   * int32_t index=1;
+   *
+   * // the following examples will all result in index==4, position of U+10ffff
+   *
+   * // skip 2 code points from some position in the string
+   * index=s.moveIndex32(index, 2); // skips U+10000 and 'b'
+   *
+   * // go to the 3rd code point from the start of s (0-based)
+   * index=s.moveIndex32(0, 3); // skips 'a', U+10000, and 'b'
+   *
+   * // go to the next-to-last code point of s
+   * index=s.moveIndex32(s.length(), -2); // backward-skips U+2029 and U+10ffff
+   * </pre>
+   *
+   * @param index input code unit index
+   * @param delta (signed) code point count to move the index forward or backward
+   *        in the string
+   * @return the resulting code unit index
+   * @stable ICU 2.0
+   */
+  int32_t moveIndex32(int32_t index, int32_t delta) const;
+
+  /* Substring extraction */
+
+  /**
+   * Copy the characters in the range
+   * [<tt>start</tt>, <tt>start + length</tt>) into the array <tt>dst</tt>,
+   * beginning at <tt>dstStart</tt>.
+   * If the string aliases to <code>dst</code> itself as an external buffer,
+   * then extract() will not copy the contents.
+   *
+   * @param start offset of first character which will be copied into the array
+   * @param length the number of characters to extract
+   * @param dst array in which to copy characters.  The length of <tt>dst</tt>
+   * must be at least (<tt>dstStart + length</tt>).
+   * @param dstStart the offset in <TT>dst</TT> where the first character
+   * will be extracted
+   * @stable ICU 2.0
+   */
+  inline void extract(int32_t start,
+           int32_t length,
+           Char16Ptr dst,
+           int32_t dstStart = 0) const;
+
+  /**
+   * Copy the contents of the string into dest.
+   * This is a convenience function that
+   * checks if there is enough space in dest,
+   * extracts the entire string if possible,
+   * and NUL-terminates dest if possible.
+   *
+   * If the string fits into dest but cannot be NUL-terminated
+   * (length()==destCapacity) then the error code is set to U_STRING_NOT_TERMINATED_WARNING.
+   * If the string itself does not fit into dest
+   * (length()>destCapacity) then the error code is set to U_BUFFER_OVERFLOW_ERROR.
+   *
+   * If the string aliases to <code>dest</code> itself as an external buffer,
+   * then extract() will not copy the contents.
+   *
+   * @param dest Destination string buffer.
+   * @param destCapacity Number of char16_ts available at dest.
+   * @param errorCode ICU error code.
+   * @return length()
+   * @stable ICU 2.0
+   */
+  int32_t
+  extract(Char16Ptr dest, int32_t destCapacity,
+          UErrorCode &errorCode) const;
+
+  /**
+   * Copy the characters in the range
+   * [<tt>start</tt>, <tt>start + length</tt>) into the  UnicodeString
+   * <tt>target</tt>.
+   * @param start offset of first character which will be copied
+   * @param length the number of characters to extract
+   * @param target UnicodeString into which to copy characters.
+   * @return A reference to <TT>target</TT>
+   * @stable ICU 2.0
+   */
+  inline void extract(int32_t start,
+           int32_t length,
+           UnicodeString& target) const;
+
+  /**
+   * Copy the characters in the range [<tt>start</tt>, <tt>limit</tt>)
+   * into the array <tt>dst</tt>, beginning at <tt>dstStart</tt>.
+   * @param start offset of first character which will be copied into the array
+   * @param limit offset immediately following the last character to be copied
+   * @param dst array in which to copy characters.  The length of <tt>dst</tt>
+   * must be at least (<tt>dstStart + (limit - start)</tt>).
+   * @param dstStart the offset in <TT>dst</TT> where the first character
+   * will be extracted
+   * @stable ICU 2.0
+   */
+  inline void extractBetween(int32_t start,
+              int32_t limit,
+              char16_t *dst,
+              int32_t dstStart = 0) const;
+
+  /**
+   * Copy the characters in the range [<tt>start</tt>, <tt>limit</tt>)
+   * into the UnicodeString <tt>target</tt>.  Replaceable API.
+   * @param start offset of first character which will be copied
+   * @param limit offset immediately following the last character to be copied
+   * @param target UnicodeString into which to copy characters.
+   * @return A reference to <TT>target</TT>
+   * @stable ICU 2.0
+   */
+  virtual void extractBetween(int32_t start,
+              int32_t limit,
+              UnicodeString& target) const;
+
+  /**
+   * Copy the characters in the range
+   * [<tt>start</TT>, <tt>start + startLength</TT>) into an array of characters.
+   * All characters must be invariant (see utypes.h).
+   * Use US_INV as the last, signature-distinguishing parameter.
+   *
+   * This function does not write any more than <code>targetCapacity</code>
+   * characters but returns the length of the entire output string
+   * so that one can allocate a larger buffer and call the function again
+   * if necessary.
+   * The output string is NUL-terminated if possible.
+   *
+   * @param start offset of first character which will be copied
+   * @param startLength the number of characters to extract
+   * @param target the target buffer for extraction, can be NULL
+   *               if targetLength is 0
+   * @param targetCapacity the length of the target buffer
+   * @param inv Signature-distinguishing paramater, use US_INV.
+   * @return the output string length, not including the terminating NUL
+   * @stable ICU 3.2
+   */
+  int32_t extract(int32_t start,
+           int32_t startLength,
+           char *target,
+           int32_t targetCapacity,
+           enum EInvariant inv) const;
+
+#if U_CHARSET_IS_UTF8 || !UCONFIG_NO_CONVERSION
+
+  /**
+   * Copy the characters in the range
+   * [<tt>start</TT>, <tt>start + length</TT>) into an array of characters
+   * in the platform's default codepage.
+   * This function does not write any more than <code>targetLength</code>
+   * characters but returns the length of the entire output string
+   * so that one can allocate a larger buffer and call the function again
+   * if necessary.
+   * The output string is NUL-terminated if possible.
+   *
+   * @param start offset of first character which will be copied
+   * @param startLength the number of characters to extract
+   * @param target the target buffer for extraction
+   * @param targetLength the length of the target buffer
+   * If <TT>target</TT> is NULL, then the number of bytes required for
+   * <TT>target</TT> is returned.
+   * @return the output string length, not including the terminating NUL
+   * @stable ICU 2.0
+   */
+  int32_t extract(int32_t start,
+           int32_t startLength,
+           char *target,
+           uint32_t targetLength) const;
+
+#endif
+
+#if !UCONFIG_NO_CONVERSION
+
+  /**
+   * Copy the characters in the range
+   * [<tt>start</TT>, <tt>start + length</TT>) into an array of characters
+   * in a specified codepage.
+   * The output string is NUL-terminated.
+   *
+   * Recommendation: For invariant-character strings use
+   * extract(int32_t start, int32_t length, char *target, int32_t targetCapacity, enum EInvariant inv) const
+   * because it avoids object code dependencies of UnicodeString on
+   * the conversion code.
+   *
+   * @param start offset of first character which will be copied
+   * @param startLength the number of characters to extract
+   * @param target the target buffer for extraction
+   * @param codepage the desired codepage for the characters.  0 has
+   * the special meaning of the default codepage
+   * If <code>codepage</code> is an empty string (<code>""</code>),
+   * then a simple conversion is performed on the codepage-invariant
+   * subset ("invariant characters") of the platform encoding. See utypes.h.
+   * If <TT>target</TT> is NULL, then the number of bytes required for
+   * <TT>target</TT> is returned. It is assumed that the target is big enough
+   * to fit all of the characters.
+   * @return the output string length, not including the terminating NUL
+   * @stable ICU 2.0
+   */
+  inline int32_t extract(int32_t start,
+                 int32_t startLength,
+                 char *target,
+                 const char *codepage = 0) const;
+
+  /**
+   * Copy the characters in the range
+   * [<tt>start</TT>, <tt>start + length</TT>) into an array of characters
+   * in a specified codepage.
+   * This function does not write any more than <code>targetLength</code>
+   * characters but returns the length of the entire output string
+   * so that one can allocate a larger buffer and call the function again
+   * if necessary.
+   * The output string is NUL-terminated if possible.
+   *
+   * Recommendation: For invariant-character strings use
+   * extract(int32_t start, int32_t length, char *target, int32_t targetCapacity, enum EInvariant inv) const
+   * because it avoids object code dependencies of UnicodeString on
+   * the conversion code.
+   *
+   * @param start offset of first character which will be copied
+   * @param startLength the number of characters to extract
+   * @param target the target buffer for extraction
+   * @param targetLength the length of the target buffer
+   * @param codepage the desired codepage for the characters.  0 has
+   * the special meaning of the default codepage
+   * If <code>codepage</code> is an empty string (<code>""</code>),
+   * then a simple conversion is performed on the codepage-invariant
+   * subset ("invariant characters") of the platform encoding. See utypes.h.
+   * If <TT>target</TT> is NULL, then the number of bytes required for
+   * <TT>target</TT> is returned.
+   * @return the output string length, not including the terminating NUL
+   * @stable ICU 2.0
+   */
+  int32_t extract(int32_t start,
+           int32_t startLength,
+           char *target,
+           uint32_t targetLength,
+           const char *codepage) const;
+
+  /**
+   * Convert the UnicodeString into a codepage string using an existing UConverter.
+   * The output string is NUL-terminated if possible.
+   *
+   * This function avoids the overhead of opening and closing a converter if
+   * multiple strings are extracted.
+   *
+   * @param dest destination string buffer, can be NULL if destCapacity==0
+   * @param destCapacity the number of chars available at dest
+   * @param cnv the converter object to be used (ucnv_resetFromUnicode() will be called),
+   *        or NULL for the default converter
+   * @param errorCode normal ICU error code
+   * @return the length of the output string, not counting the terminating NUL;
+   *         if the length is greater than destCapacity, then the string will not fit
+   *         and a buffer of the indicated length would need to be passed in
+   * @stable ICU 2.0
+   */
+  int32_t extract(char *dest, int32_t destCapacity,
+                  UConverter *cnv,
+                  UErrorCode &errorCode) const;
+
+#endif
+
+  /**
+   * Create a temporary substring for the specified range.
+   * Unlike the substring constructor and setTo() functions,
+   * the object returned here will be a read-only alias (using getBuffer())
+   * rather than copying the text.
+   * As a result, this substring operation is much faster but requires
+   * that the original string not be modified or deleted during the lifetime
+   * of the returned substring object.
+   * @param start offset of the first character visible in the substring
+   * @param length length of the substring
+   * @return a read-only alias UnicodeString object for the substring
+   * @stable ICU 4.4
+   */
+  UnicodeString tempSubString(int32_t start=0, int32_t length=INT32_MAX) const;
+
+  /**
+   * Create a temporary substring for the specified range.
+   * Same as tempSubString(start, length) except that the substring range
+   * is specified as a (start, limit) pair (with an exclusive limit index)
+   * rather than a (start, length) pair.
+   * @param start offset of the first character visible in the substring
+   * @param limit offset immediately following the last character visible in the substring
+   * @return a read-only alias UnicodeString object for the substring
+   * @stable ICU 4.4
+   */
+  inline UnicodeString tempSubStringBetween(int32_t start, int32_t limit=INT32_MAX) const;
+
+  /**
+   * Convert the UnicodeString to UTF-8 and write the result
+   * to a ByteSink. This is called by toUTF8String().
+   * Unpaired surrogates are replaced with U+FFFD.
+   * Calls u_strToUTF8WithSub().
+   *
+   * @param sink A ByteSink to which the UTF-8 version of the string is written.
+   *             sink.Flush() is called at the end.
+   * @stable ICU 4.2
+   * @see toUTF8String
+   */
+  void toUTF8(ByteSink &sink) const;
+
+  /**
+   * Convert the UnicodeString to UTF-8 and append the result
+   * to a standard string.
+   * Unpaired surrogates are replaced with U+FFFD.
+   * Calls toUTF8().
+   *
+   * @param result A standard string (or a compatible object)
+   *        to which the UTF-8 version of the string is appended.
+   * @return The string object.
+   * @stable ICU 4.2
+   * @see toUTF8
+   */
+  template<typename StringClass>
+  StringClass &toUTF8String(StringClass &result) const {
+    StringByteSink<StringClass> sbs(&result, length());
+    toUTF8(sbs);
+    return result;
+  }
+
+  /**
+   * Convert the UnicodeString to UTF-32.
+   * Unpaired surrogates are replaced with U+FFFD.
+   * Calls u_strToUTF32WithSub().
+   *
+   * @param utf32 destination string buffer, can be NULL if capacity==0
+   * @param capacity the number of UChar32s available at utf32
+   * @param errorCode Standard ICU error code. Its input value must
+   *                  pass the U_SUCCESS() test, or else the function returns
+   *                  immediately. Check for U_FAILURE() on output or use with
+   *                  function chaining. (See User Guide for details.)
+   * @return The length of the UTF-32 string.
+   * @see fromUTF32
+   * @stable ICU 4.2
+   */
+  int32_t toUTF32(UChar32 *utf32, int32_t capacity, UErrorCode &errorCode) const;
+
+  /* Length operations */
+
+  /**
+   * Return the length of the UnicodeString object.
+   * The length is the number of char16_t code units are in the UnicodeString.
+   * If you want the number of code points, please use countChar32().
+   * @return the length of the UnicodeString object
+   * @see countChar32
+   * @stable ICU 2.0
+   */
+  inline int32_t length(void) const;
+
+  /**
+   * Count Unicode code points in the length char16_t code units of the string.
+   * A code point may occupy either one or two char16_t code units.
+   * Counting code points involves reading all code units.
+   *
+   * This functions is basically the inverse of moveIndex32().
+   *
+   * @param start the index of the first code unit to check
+   * @param length the number of char16_t code units to check
+   * @return the number of code points in the specified code units
+   * @see length
+   * @stable ICU 2.0
+   */
+  int32_t
+  countChar32(int32_t start=0, int32_t length=INT32_MAX) const;
+
+  /**
+   * Check if the length char16_t code units of the string
+   * contain more Unicode code points than a certain number.
+   * This is more efficient than counting all code points in this part of the string
+   * and comparing that number with a threshold.
+   * This function may not need to scan the string at all if the length
+   * falls within a certain range, and
+   * never needs to count more than 'number+1' code points.
+   * Logically equivalent to (countChar32(start, length)>number).
+   * A Unicode code point may occupy either one or two char16_t code units.
+   *
+   * @param start the index of the first code unit to check (0 for the entire string)
+   * @param length the number of char16_t code units to check
+   *               (use INT32_MAX for the entire string; remember that start/length
+   *                values are pinned)
+   * @param number The number of code points in the (sub)string is compared against
+   *               the 'number' parameter.
+   * @return Boolean value for whether the string contains more Unicode code points
+   *         than 'number'. Same as (u_countChar32(s, length)>number).
+   * @see countChar32
+   * @see u_strHasMoreChar32Than
+   * @stable ICU 2.4
+   */
+  UBool
+  hasMoreChar32Than(int32_t start, int32_t length, int32_t number) const;
+
+  /**
+   * Determine if this string is empty.
+   * @return TRUE if this string contains 0 characters, FALSE otherwise.
+   * @stable ICU 2.0
+   */
+  inline UBool isEmpty(void) const;
+
+  /**
+   * Return the capacity of the internal buffer of the UnicodeString object.
+   * This is useful together with the getBuffer functions.
+   * See there for details.
+   *
+   * @return the number of char16_ts available in the internal buffer
+   * @see getBuffer
+   * @stable ICU 2.0
+   */
+  inline int32_t getCapacity(void) const;
+
+  /* Other operations */
+
+  /**
+   * Generate a hash code for this object.
+   * @return The hash code of this UnicodeString.
+   * @stable ICU 2.0
+   */
+  inline int32_t hashCode(void) const;
+
+  /**
+   * Determine if this object contains a valid string.
+   * A bogus string has no value. It is different from an empty string,
+   * although in both cases isEmpty() returns TRUE and length() returns 0.
+   * setToBogus() and isBogus() can be used to indicate that no string value is available.
+   * For a bogus string, getBuffer() and getTerminatedBuffer() return NULL, and
+   * length() returns 0.
+   *
+   * @return TRUE if the string is bogus/invalid, FALSE otherwise
+   * @see setToBogus()
+   * @stable ICU 2.0
+   */
+  inline UBool isBogus(void) const;
+
+
+  //========================================
+  // Write operations
+  //========================================
+
+  /* Assignment operations */
+
+  /**
+   * Assignment operator.  Replace the characters in this UnicodeString
+   * with the characters from <TT>srcText</TT>.
+   *
+   * Starting with ICU 2.4, the assignment operator and the copy constructor
+   * allocate a new buffer and copy the buffer contents even for readonly aliases.
+   * By contrast, the fastCopyFrom() function implements the old,
+   * more efficient but less safe behavior
+   * of making this string also a readonly alias to the same buffer.
+   *
+   * If the source object has an "open" buffer from getBuffer(minCapacity),
+   * then the copy is an empty string.
+   *
+   * @param srcText The text containing the characters to replace
+   * @return a reference to this
+   * @stable ICU 2.0
+   * @see fastCopyFrom
+   */
+  UnicodeString &operator=(const UnicodeString &srcText);
+
+  /**
+   * Almost the same as the assignment operator.
+   * Replace the characters in this UnicodeString
+   * with the characters from <code>srcText</code>.
+   *
+   * This function works the same as the assignment operator
+   * for all strings except for ones that are readonly aliases.
+   *
+   * Starting with ICU 2.4, the assignment operator and the copy constructor
+   * allocate a new buffer and copy the buffer contents even for readonly aliases.
+   * This function implements the old, more efficient but less safe behavior
+   * of making this string also a readonly alias to the same buffer.
+   *
+   * The fastCopyFrom function must be used only if it is known that the lifetime of
+   * this UnicodeString does not exceed the lifetime of the aliased buffer
+   * including its contents, for example for strings from resource bundles
+   * or aliases to string constants.
+   *
+   * If the source object has an "open" buffer from getBuffer(minCapacity),
+   * then the copy is an empty string.
+   *
+   * @param src The text containing the characters to replace.
+   * @return a reference to this
+   * @stable ICU 2.4
+   */
+  UnicodeString &fastCopyFrom(const UnicodeString &src);
+
+  /**
+   * Move assignment operator, might leave src in bogus state.
+   * This string will have the same contents and state that the source string had.
+   * The behavior is undefined if *this and src are the same object.
+   * @param src source string
+   * @return *this
+   * @stable ICU 56
+   */
+  UnicodeString &operator=(UnicodeString &&src) U_NOEXCEPT {
+    return moveFrom(src);
+  }
+
+  // do not use #ifndef U_HIDE_DRAFT_API for moveFrom, needed by non-draft API
+  /**
+   * Move assignment, might leave src in bogus state.
+   * This string will have the same contents and state that the source string had.
+   * The behavior is undefined if *this and src are the same object.
+   *
+   * Can be called explicitly, does not need C++11 support.
+   * @param src source string
+   * @return *this
+   * @draft ICU 56
+   */
+  UnicodeString &moveFrom(UnicodeString &src) U_NOEXCEPT;
+
+  /**
+   * Swap strings.
+   * @param other other string
+   * @stable ICU 56
+   */
+  void swap(UnicodeString &other) U_NOEXCEPT;
+
+  /**
+   * Non-member UnicodeString swap function.
+   * @param s1 will get s2's contents and state
+   * @param s2 will get s1's contents and state
+   * @stable ICU 56
+   */
+  friend U_COMMON_API inline void U_EXPORT2
+  swap(UnicodeString &s1, UnicodeString &s2) U_NOEXCEPT {
+    s1.swap(s2);
+  }
+
+  /**
+   * Assignment operator.  Replace the characters in this UnicodeString
+   * with the code unit <TT>ch</TT>.
+   * @param ch the code unit to replace
+   * @return a reference to this
+   * @stable ICU 2.0
+   */
+  inline UnicodeString& operator= (char16_t ch);
+
+  /**
+   * Assignment operator.  Replace the characters in this UnicodeString
+   * with the code point <TT>ch</TT>.
+   * @param ch the code point to replace
+   * @return a reference to this
+   * @stable ICU 2.0
+   */
+  inline UnicodeString& operator= (UChar32 ch);
+
+  /**
+   * Set the text in the UnicodeString object to the characters
+   * in <TT>srcText</TT> in the range
+   * [<TT>srcStart</TT>, <TT>srcText.length()</TT>).
+   * <TT>srcText</TT> is not modified.
+   * @param srcText the source for the new characters
+   * @param srcStart the offset into <TT>srcText</TT> where new characters
+   * will be obtained
+   * @return a reference to this
+   * @stable ICU 2.2
+   */
+  inline UnicodeString& setTo(const UnicodeString& srcText,
+               int32_t srcStart);
+
+  /**
+   * Set the text in the UnicodeString object to the characters
+   * in <TT>srcText</TT> in the range
+   * [<TT>srcStart</TT>, <TT>srcStart + srcLength</TT>).
+   * <TT>srcText</TT> is not modified.
+   * @param srcText the source for the new characters
+   * @param srcStart the offset into <TT>srcText</TT> where new characters
+   * will be obtained
+   * @param srcLength the number of characters in <TT>srcText</TT> in the
+   * replace string.
+   * @return a reference to this
+   * @stable ICU 2.0
+   */
+  inline UnicodeString& setTo(const UnicodeString& srcText,
+               int32_t srcStart,
+               int32_t srcLength);
+
+  /**
+   * Set the text in the UnicodeString object to the characters in
+   * <TT>srcText</TT>.
+   * <TT>srcText</TT> is not modified.
+   * @param srcText the source for the new characters
+   * @return a reference to this
+   * @stable ICU 2.0
+   */
+  inline UnicodeString& setTo(const UnicodeString& srcText);
+
+  /**
+   * Set the characters in the UnicodeString object to the characters
+   * in <TT>srcChars</TT>. <TT>srcChars</TT> is not modified.
+   * @param srcChars the source for the new characters
+   * @param srcLength the number of Unicode characters in srcChars.
+   * @return a reference to this
+   * @stable ICU 2.0
+   */
+  inline UnicodeString& setTo(const char16_t *srcChars,
+               int32_t srcLength);
+
+  /**
+   * Set the characters in the UnicodeString object to the code unit
+   * <TT>srcChar</TT>.
+   * @param srcChar the code unit which becomes the UnicodeString's character
+   * content
+   * @return a reference to this
+   * @stable ICU 2.0
+   */
+  UnicodeString& setTo(char16_t srcChar);
+
+  /**
+   * Set the characters in the UnicodeString object to the code point
+   * <TT>srcChar</TT>.
+   * @param srcChar the code point which becomes the UnicodeString's character
+   * content
+   * @return a reference to this
+   * @stable ICU 2.0
+   */
+  UnicodeString& setTo(UChar32 srcChar);
+
+  /**
+   * Aliasing setTo() function, analogous to the readonly-aliasing char16_t* constructor.
+   * The text will be used for the UnicodeString object, but
+   * it will not be released when the UnicodeString is destroyed.
+   * This has copy-on-write semantics:
+   * When the string is modified, then the buffer is first copied into
+   * newly allocated memory.
+   * The aliased buffer is never modified.
+   *
+   * In an assignment to another UnicodeString, when using the copy constructor
+   * or the assignment operator, the text will be copied.
+   * When using fastCopyFrom(), the text will be aliased again,
+   * so that both strings then alias the same readonly-text.
+   *
+   * @param isTerminated specifies if <code>text</code> is <code>NUL</code>-terminated.
+   *                     This must be true if <code>textLength==-1</code>.
+   * @param text The characters to alias for the UnicodeString.
+   * @param textLength The number of Unicode characters in <code>text</code> to alias.
+   *                   If -1, then this constructor will determine the length
+   *                   by calling <code>u_strlen()</code>.
+   * @return a reference to this
+   * @stable ICU 2.0
+   */
+  UnicodeString &setTo(UBool isTerminated,
+                       ConstChar16Ptr text,
+                       int32_t textLength);
+
+  /**
+   * Aliasing setTo() function, analogous to the writable-aliasing char16_t* constructor.
+   * The text will be used for the UnicodeString object, but
+   * it will not be released when the UnicodeString is destroyed.
+   * This has write-through semantics:
+   * For as long as the capacity of the buffer is sufficient, write operations
+   * will directly affect the buffer. When more capacity is necessary, then
+   * a new buffer will be allocated and the contents copied as with regularly
+   * constructed strings.
+   * In an assignment to another UnicodeString, the buffer will be copied.
+   * The extract(Char16Ptr dst) function detects whether the dst pointer is the same
+   * as the string buffer itself and will in this case not copy the contents.
+   *
+   * @param buffer The characters to alias for the UnicodeString.
+   * @param buffLength The number of Unicode characters in <code>buffer</code> to alias.
+   * @param buffCapacity The size of <code>buffer</code> in char16_ts.
+   * @return a reference to this
+   * @stable ICU 2.0
+   */
+  UnicodeString &setTo(char16_t *buffer,
+                       int32_t buffLength,
+                       int32_t buffCapacity);
+
+  /**
+   * Make this UnicodeString object invalid.
+   * The string will test TRUE with isBogus().
+   *
+   * A bogus string has no value. It is different from an empty string.
+   * It can be used to indicate that no string value is available.
+   * getBuffer() and getTerminatedBuffer() return NULL, and
+   * length() returns 0.
+   *
+   * This utility function is used throughout the UnicodeString
+   * implementation to indicate that a UnicodeString operation failed,
+   * and may be used in other functions,
+   * especially but not exclusively when such functions do not
+   * take a UErrorCode for simplicity.
+   *
+   * The following methods, and no others, will clear a string object's bogus flag:
+   * - remove()
+   * - remove(0, INT32_MAX)
+   * - truncate(0)
+   * - operator=() (assignment operator)
+   * - setTo(...)
+   *
+   * The simplest ways to turn a bogus string into an empty one
+   * is to use the remove() function.
+   * Examples for other functions that are equivalent to "set to empty string":
+   * \code
+   * if(s.isBogus()) {
+   *   s.remove();           // set to an empty string (remove all), or
+   *   s.remove(0, INT32_MAX); // set to an empty string (remove all), or
+   *   s.truncate(0);        // set to an empty string (complete truncation), or
+   *   s=UnicodeString();    // assign an empty string, or
+   *   s.setTo((UChar32)-1); // set to a pseudo code point that is out of range, or
+   *   static const char16_t nul=0;
+   *   s.setTo(&nul, 0);     // set to an empty C Unicode string
+   * }
+   * \endcode
+   *
+   * @see isBogus()
+   * @stable ICU 2.0
+   */
+  void setToBogus();
+
+  /**
+   * Set the character at the specified offset to the specified character.
+   * @param offset A valid offset into the text of the character to set
+   * @param ch The new character
+   * @return A reference to this
+   * @stable ICU 2.0
+   */
+  UnicodeString& setCharAt(int32_t offset,
+               char16_t ch);
+
+
+  /* Append operations */
+
+  /**
+   * Append operator. Append the code unit <TT>ch</TT> to the UnicodeString
+   * object.
+   * @param ch the code unit to be appended
+   * @return a reference to this
+   * @stable ICU 2.0
+   */
+ inline  UnicodeString& operator+= (char16_t ch);
+
+  /**
+   * Append operator. Append the code point <TT>ch</TT> to the UnicodeString
+   * object.
+   * @param ch the code point to be appended
+   * @return a reference to this
+   * @stable ICU 2.0
+   */
+ inline  UnicodeString& operator+= (UChar32 ch);
+
+  /**
+   * Append operator. Append the characters in <TT>srcText</TT> to the
+   * UnicodeString object. <TT>srcText</TT> is not modified.
+   * @param srcText the source for the new characters
+   * @return a reference to this
+   * @stable ICU 2.0
+   */
+  inline UnicodeString& operator+= (const UnicodeString& srcText);
+
+  /**
+   * Append the characters
+   * in <TT>srcText</TT> in the range
+   * [<TT>srcStart</TT>, <TT>srcStart + srcLength</TT>) to the
+   * UnicodeString object at offset <TT>start</TT>. <TT>srcText</TT>
+   * is not modified.
+   * @param srcText the source for the new characters
+   * @param srcStart the offset into <TT>srcText</TT> where new characters
+   * will be obtained
+   * @param srcLength the number of characters in <TT>srcText</TT> in
+   * the append string
+   * @return a reference to this
+   * @stable ICU 2.0
+   */
+  inline UnicodeString& append(const UnicodeString& srcText,
+            int32_t srcStart,
+            int32_t srcLength);
+
+  /**
+   * Append the characters in <TT>srcText</TT> to the UnicodeString object.
+   * <TT>srcText</TT> is not modified.
+   * @param srcText the source for the new characters
+   * @return a reference to this
+   * @stable ICU 2.0
+   */
+  inline UnicodeString& append(const UnicodeString& srcText);
+
+  /**
+   * Append the characters in <TT>srcChars</TT> in the range
+   * [<TT>srcStart</TT>, <TT>srcStart + srcLength</TT>) to the UnicodeString
+   * object at offset
+   * <TT>start</TT>. <TT>srcChars</TT> is not modified.
+   * @param srcChars the source for the new characters
+   * @param srcStart the offset into <TT>srcChars</TT> where new characters
+   * will be obtained
+   * @param srcLength the number of characters in <TT>srcChars</TT> in
+   *                  the append string; can be -1 if <TT>srcChars</TT> is NUL-terminated
+   * @return a reference to this
+   * @stable ICU 2.0
+   */
+  inline UnicodeString& append(const char16_t *srcChars,
+            int32_t srcStart,
+            int32_t srcLength);
+
+  /**
+   * Append the characters in <TT>srcChars</TT> to the UnicodeString object
+   * at offset <TT>start</TT>. <TT>srcChars</TT> is not modified.
+   * @param srcChars the source for the new characters
+   * @param srcLength the number of Unicode characters in <TT>srcChars</TT>;
+   *                  can be -1 if <TT>srcChars</TT> is NUL-terminated
+   * @return a reference to this
+   * @stable ICU 2.0
+   */
+  inline UnicodeString& append(ConstChar16Ptr srcChars,
+            int32_t srcLength);
+
+  /**
+   * Append the code unit <TT>srcChar</TT> to the UnicodeString object.
+   * @param srcChar the code unit to append
+   * @return a reference to this
+   * @stable ICU 2.0
+   */
+  inline UnicodeString& append(char16_t srcChar);
+
+  /**
+   * Append the code point <TT>srcChar</TT> to the UnicodeString object.
+   * @param srcChar the code point to append
+   * @return a reference to this
+   * @stable ICU 2.0
+   */
+  UnicodeString& append(UChar32 srcChar);
+
+
+  /* Insert operations */
+
+  /**
+   * Insert the characters in <TT>srcText</TT> in the range
+   * [<TT>srcStart</TT>, <TT>srcStart + srcLength</TT>) into the UnicodeString
+   * object at offset <TT>start</TT>. <TT>srcText</TT> is not modified.
+   * @param start the offset where the insertion begins
+   * @param srcText the source for the new characters
+   * @param srcStart the offset into <TT>srcText</TT> where new characters
+   * will be obtained
+   * @param srcLength the number of characters in <TT>srcText</TT> in
+   * the insert string
+   * @return a reference to this
+   * @stable ICU 2.0
+   */
+  inline UnicodeString& insert(int32_t start,
+            const UnicodeString& srcText,
+            int32_t srcStart,
+            int32_t srcLength);
+
+  /**
+   * Insert the characters in <TT>srcText</TT> into the UnicodeString object
+   * at offset <TT>start</TT>. <TT>srcText</TT> is not modified.
+   * @param start the offset where the insertion begins
+   * @param srcText the source for the new characters
+   * @return a reference to this
+   * @stable ICU 2.0
+   */
+  inline UnicodeString& insert(int32_t start,
+            const UnicodeString& srcText);
+
+  /**
+   * Insert the characters in <TT>srcChars</TT> in the range
+   * [<TT>srcStart</TT>, <TT>srcStart + srcLength</TT>) into the UnicodeString
+   *  object at offset <TT>start</TT>. <TT>srcChars</TT> is not modified.
+   * @param start the offset at which the insertion begins
+   * @param srcChars the source for the new characters
+   * @param srcStart the offset into <TT>srcChars</TT> where new characters
+   * will be obtained
+   * @param srcLength the number of characters in <TT>srcChars</TT>
+   * in the insert string
+   * @return a reference to this
+   * @stable ICU 2.0
+   */
+  inline UnicodeString& insert(int32_t start,
+            const char16_t *srcChars,
+            int32_t srcStart,
+            int32_t srcLength);
+
+  /**
+   * Insert the characters in <TT>srcChars</TT> into the UnicodeString object
+   * at offset <TT>start</TT>. <TT>srcChars</TT> is not modified.
+   * @param start the offset where the insertion begins
+   * @param srcChars the source for the new characters
+   * @param srcLength the number of Unicode characters in srcChars.
+   * @return a reference to this
+   * @stable ICU 2.0
+   */
+  inline UnicodeString& insert(int32_t start,
+            ConstChar16Ptr srcChars,
+            int32_t srcLength);
+
+  /**
+   * Insert the code unit <TT>srcChar</TT> into the UnicodeString object at
+   * offset <TT>start</TT>.
+   * @param start the offset at which the insertion occurs
+   * @param srcChar the code unit to insert
+   * @return a reference to this
+   * @stable ICU 2.0
+   */
+  inline UnicodeString& insert(int32_t start,
+            char16_t srcChar);
+
+  /**
+   * Insert the code point <TT>srcChar</TT> into the UnicodeString object at
+   * offset <TT>start</TT>.
+   * @param start the offset at which the insertion occurs
+   * @param srcChar the code point to insert
+   * @return a reference to this
+   * @stable ICU 2.0
+   */
+  inline UnicodeString& insert(int32_t start,
+            UChar32 srcChar);
+
+
+  /* Replace operations */
+
+  /**
+   * Replace the characters in the range
+   * [<TT>start</TT>, <TT>start + length</TT>) with the characters in
+   * <TT>srcText</TT> in the range
+   * [<TT>srcStart</TT>, <TT>srcStart + srcLength</TT>).
+   * <TT>srcText</TT> is not modified.
+   * @param start the offset at which the replace operation begins
+   * @param length the number of characters to replace. The character at
+   * <TT>start + length</TT> is not modified.
+   * @param srcText the source for the new characters
+   * @param srcStart the offset into <TT>srcText</TT> where new characters
+   * will be obtained
+   * @param srcLength the number of characters in <TT>srcText</TT> in
+   * the replace string
+   * @return a reference to this
+   * @stable ICU 2.0
+   */
+  UnicodeString& replace(int32_t start,
+             int32_t length,
+             const UnicodeString& srcText,
+             int32_t srcStart,
+             int32_t srcLength);
+
+  /**
+   * Replace the characters in the range
+   * [<TT>start</TT>, <TT>start + length</TT>)
+   * with the characters in <TT>srcText</TT>.  <TT>srcText</TT> is
+   *  not modified.
+   * @param start the offset at which the replace operation begins
+   * @param length the number of characters to replace. The character at
+   * <TT>start + length</TT> is not modified.
+   * @param srcText the source for the new characters
+   * @return a reference to this
+   * @stable ICU 2.0
+   */
+  UnicodeString& replace(int32_t start,
+             int32_t length,
+             const UnicodeString& srcText);
+
+  /**
+   * Replace the characters in the range
+   * [<TT>start</TT>, <TT>start + length</TT>) with the characters in
+   * <TT>srcChars</TT> in the range
+   * [<TT>srcStart</TT>, <TT>srcStart + srcLength</TT>). <TT>srcChars</TT>
+   * is not modified.
+   * @param start the offset at which the replace operation begins
+   * @param length the number of characters to replace.  The character at
+   * <TT>start + length</TT> is not modified.
+   * @param srcChars the source for the new characters
+   * @param srcStart the offset into <TT>srcChars</TT> where new characters
+   * will be obtained
+   * @param srcLength the number of characters in <TT>srcChars</TT>
+   * in the replace string
+   * @return a reference to this
+   * @stable ICU 2.0
+   */
+  UnicodeString& replace(int32_t start,
+             int32_t length,
+             const char16_t *srcChars,
+             int32_t srcStart,
+             int32_t srcLength);
+
+  /**
+   * Replace the characters in the range
+   * [<TT>start</TT>, <TT>start + length</TT>) with the characters in
+   * <TT>srcChars</TT>.  <TT>srcChars</TT> is not modified.
+   * @param start the offset at which the replace operation begins
+   * @param length number of characters to replace.  The character at
+   * <TT>start + length</TT> is not modified.
+   * @param srcChars the source for the new characters
+   * @param srcLength the number of Unicode characters in srcChars
+   * @return a reference to this
+   * @stable ICU 2.0
+   */
+  inline UnicodeString& replace(int32_t start,
+             int32_t length,
+             ConstChar16Ptr srcChars,
+             int32_t srcLength);
+
+  /**
+   * Replace the characters in the range
+   * [<TT>start</TT>, <TT>start + length</TT>) with the code unit
+   * <TT>srcChar</TT>.
+   * @param start the offset at which the replace operation begins
+   * @param length the number of characters to replace.  The character at
+   * <TT>start + length</TT> is not modified.
+   * @param srcChar the new code unit
+   * @return a reference to this
+   * @stable ICU 2.0
+   */
+  inline UnicodeString& replace(int32_t start,
+             int32_t length,
+             char16_t srcChar);
+
+  /**
+   * Replace the characters in the range
+   * [<TT>start</TT>, <TT>start + length</TT>) with the code point
+   * <TT>srcChar</TT>.
+   * @param start the offset at which the replace operation begins
+   * @param length the number of characters to replace.  The character at
+   * <TT>start + length</TT> is not modified.
+   * @param srcChar the new code point
+   * @return a reference to this
+   * @stable ICU 2.0
+   */
+  UnicodeString& replace(int32_t start, int32_t length, UChar32 srcChar);
+
+  /**
+   * Replace the characters in the range [<TT>start</TT>, <TT>limit</TT>)
+   * with the characters in <TT>srcText</TT>. <TT>srcText</TT> is not modified.
+   * @param start the offset at which the replace operation begins
+   * @param limit the offset immediately following the replace range
+   * @param srcText the source for the new characters
+   * @return a reference to this
+   * @stable ICU 2.0
+   */
+  inline UnicodeString& replaceBetween(int32_t start,
+                int32_t limit,
+                const UnicodeString& srcText);
+
+  /**
+   * Replace the characters in the range [<TT>start</TT>, <TT>limit</TT>)
+   * with the characters in <TT>srcText</TT> in the range
+   * [<TT>srcStart</TT>, <TT>srcLimit</TT>). <TT>srcText</TT> is not modified.
+   * @param start the offset at which the replace operation begins
+   * @param limit the offset immediately following the replace range
+   * @param srcText the source for the new characters
+   * @param srcStart the offset into <TT>srcChars</TT> where new characters
+   * will be obtained
+   * @param srcLimit the offset immediately following the range to copy
+   * in <TT>srcText</TT>
+   * @return a reference to this
+   * @stable ICU 2.0
+   */
+  inline UnicodeString& replaceBetween(int32_t start,
+                int32_t limit,
+                const UnicodeString& srcText,
+                int32_t srcStart,
+                int32_t srcLimit);
+
+  /**
+   * Replace a substring of this object with the given text.
+   * @param start the beginning index, inclusive; <code>0 <= start
+   * <= limit</code>.
+   * @param limit the ending index, exclusive; <code>start <= limit
+   * <= length()</code>.
+   * @param text the text to replace characters <code>start</code>
+   * to <code>limit - 1</code>
+   * @stable ICU 2.0
+   */
+  virtual void handleReplaceBetween(int32_t start,
+                                    int32_t limit,
+                                    const UnicodeString& text);
+
+  /**
+   * Replaceable API
+   * @return TRUE if it has MetaData
+   * @stable ICU 2.4
+   */
+  virtual UBool hasMetaData() const;
+
+  /**
+   * Copy a substring of this object, retaining attribute (out-of-band)
+   * information.  This method is used to duplicate or reorder substrings.
+   * The destination index must not overlap the source range.
+   *
+   * @param start the beginning index, inclusive; <code>0 <= start <=
+   * limit</code>.
+   * @param limit the ending index, exclusive; <code>start <= limit <=
+   * length()</code>.
+   * @param dest the destination index.  The characters from
+   * <code>start..limit-1</code> will be copied to <code>dest</code>.
+   * Implementations of this method may assume that <code>dest <= start ||
+   * dest >= limit</code>.
+   * @stable ICU 2.0
+   */
+  virtual void copy(int32_t start, int32_t limit, int32_t dest);
+
+  /* Search and replace operations */
+
+  /**
+   * Replace all occurrences of characters in oldText with the characters
+   * in newText
+   * @param oldText the text containing the search text
+   * @param newText the text containing the replacement text
+   * @return a reference to this
+   * @stable ICU 2.0
+   */
+  inline UnicodeString& findAndReplace(const UnicodeString& oldText,
+                const UnicodeString& newText);
+
+  /**
+   * Replace all occurrences of characters in oldText with characters
+   * in newText
+   * in the range [<TT>start</TT>, <TT>start + length</TT>).
+   * @param start the start of the range in which replace will performed
+   * @param length the length of the range in which replace will be performed
+   * @param oldText the text containing the search text
+   * @param newText the text containing the replacement text
+   * @return a reference to this
+   * @stable ICU 2.0
+   */
+  inline UnicodeString& findAndReplace(int32_t start,
+                int32_t length,
+                const UnicodeString& oldText,
+                const UnicodeString& newText);
+
+  /**
+   * Replace all occurrences of characters in oldText in the range
+   * [<TT>oldStart</TT>, <TT>oldStart + oldLength</TT>) with the characters
+   * in newText in the range
+   * [<TT>newStart</TT>, <TT>newStart + newLength</TT>)
+   * in the range [<TT>start</TT>, <TT>start + length</TT>).
+   * @param start the start of the range in which replace will performed
+   * @param length the length of the range in which replace will be performed
+   * @param oldText the text containing the search text
+   * @param oldStart the start of the search range in <TT>oldText</TT>
+   * @param oldLength the length of the search range in <TT>oldText</TT>
+   * @param newText the text containing the replacement text
+   * @param newStart the start of the replacement range in <TT>newText</TT>
+   * @param newLength the length of the replacement range in <TT>newText</TT>
+   * @return a reference to this
+   * @stable ICU 2.0
+   */
+  UnicodeString& findAndReplace(int32_t start,
+                int32_t length,
+                const UnicodeString& oldText,
+                int32_t oldStart,
+                int32_t oldLength,
+                const UnicodeString& newText,
+                int32_t newStart,
+                int32_t newLength);
+
+
+  /* Remove operations */
+
+  /**
+   * Remove all characters from the UnicodeString object.
+   * @return a reference to this
+   * @stable ICU 2.0
+   */
+  inline UnicodeString& remove(void);
+
+  /**
+   * Remove the characters in the range
+   * [<TT>start</TT>, <TT>start + length</TT>) from the UnicodeString object.
+   * @param start the offset of the first character to remove
+   * @param length the number of characters to remove
+   * @return a reference to this
+   * @stable ICU 2.0
+   */
+  inline UnicodeString& remove(int32_t start,
+                               int32_t length = (int32_t)INT32_MAX);
+
+  /**
+   * Remove the characters in the range
+   * [<TT>start</TT>, <TT>limit</TT>) from the UnicodeString object.
+   * @param start the offset of the first character to remove
+   * @param limit the offset immediately following the range to remove
+   * @return a reference to this
+   * @stable ICU 2.0
+   */
+  inline UnicodeString& removeBetween(int32_t start,
+                                      int32_t limit = (int32_t)INT32_MAX);
+
+  /**
+   * Retain only the characters in the range
+   * [<code>start</code>, <code>limit</code>) from the UnicodeString object.
+   * Removes characters before <code>start</code> and at and after <code>limit</code>.
+   * @param start the offset of the first character to retain
+   * @param limit the offset immediately following the range to retain
+   * @return a reference to this
+   * @stable ICU 4.4
+   */
+  inline UnicodeString &retainBetween(int32_t start, int32_t limit = INT32_MAX);
+
+  /* Length operations */
+
+  /**
+   * Pad the start of this UnicodeString with the character <TT>padChar</TT>.
+   * If the length of this UnicodeString is less than targetLength,
+   * length() - targetLength copies of padChar will be added to the
+   * beginning of this UnicodeString.
+   * @param targetLength the desired length of the string
+   * @param padChar the character to use for padding. Defaults to
+   * space (U+0020)
+   * @return TRUE if the text was padded, FALSE otherwise.
+   * @stable ICU 2.0
+   */
+  UBool padLeading(int32_t targetLength,
+                    char16_t padChar = 0x0020);
+
+  /**
+   * Pad the end of this UnicodeString with the character <TT>padChar</TT>.
+   * If the length of this UnicodeString is less than targetLength,
+   * length() - targetLength copies of padChar will be added to the
+   * end of this UnicodeString.
+   * @param targetLength the desired length of the string
+   * @param padChar the character to use for padding. Defaults to
+   * space (U+0020)
+   * @return TRUE if the text was padded, FALSE otherwise.
+   * @stable ICU 2.0
+   */
+  UBool padTrailing(int32_t targetLength,
+                     char16_t padChar = 0x0020);
+
+  /**
+   * Truncate this UnicodeString to the <TT>targetLength</TT>.
+   * @param targetLength the desired length of this UnicodeString.
+   * @return TRUE if the text was truncated, FALSE otherwise
+   * @stable ICU 2.0
+   */
+  inline UBool truncate(int32_t targetLength);
+
+  /**
+   * Trims leading and trailing whitespace from this UnicodeString.
+   * @return a reference to this
+   * @stable ICU 2.0
+   */
+  UnicodeString& trim(void);
+
+
+  /* Miscellaneous operations */
+
+  /**
+   * Reverse this UnicodeString in place.
+   * @return a reference to this
+   * @stable ICU 2.0
+   */
+  inline UnicodeString& reverse(void);
+
+  /**
+   * Reverse the range [<TT>start</TT>, <TT>start + length</TT>) in
+   * this UnicodeString.
+   * @param start the start of the range to reverse
+   * @param length the number of characters to to reverse
+   * @return a reference to this
+   * @stable ICU 2.0
+   */
+  inline UnicodeString& reverse(int32_t start,
+             int32_t length);
+
+  /**
+   * Convert the characters in this to UPPER CASE following the conventions of
+   * the default locale.
+   * @return A reference to this.
+   * @stable ICU 2.0
+   */
+  UnicodeString& toUpper(void);
+
+  /**
+   * Convert the characters in this to UPPER CASE following the conventions of
+   * a specific locale.
+   * @param locale The locale containing the conventions to use.
+   * @return A reference to this.
+   * @stable ICU 2.0
+   */
+  UnicodeString& toUpper(const Locale& locale);
+
+  /**
+   * Convert the characters in this to lower case following the conventions of
+   * the default locale.
+   * @return A reference to this.
+   * @stable ICU 2.0
+   */
+  UnicodeString& toLower(void);
+
+  /**
+   * Convert the characters in this to lower case following the conventions of
+   * a specific locale.
+   * @param locale The locale containing the conventions to use.
+   * @return A reference to this.
+   * @stable ICU 2.0
+   */
+  UnicodeString& toLower(const Locale& locale);
+
+#if !UCONFIG_NO_BREAK_ITERATION
+
+  /**
+   * Titlecase this string, convenience function using the default locale.
+   *
+   * Casing is locale-dependent and context-sensitive.
+   * Titlecasing uses a break iterator to find the first characters of words
+   * that are to be titlecased. It titlecases those characters and lowercases
+   * all others.
+   *
+   * The titlecase break iterator can be provided to customize for arbitrary
+   * styles, using rules and dictionaries beyond the standard iterators.
+   * It may be more efficient to always provide an iterator to avoid
+   * opening and closing one for each string.
+   * The standard titlecase iterator for the root locale implements the
+   * algorithm of Unicode TR 21.
+   *
+   * This function uses only the setText(), first() and next() methods of the
+   * provided break iterator.
+   *
+   * @param titleIter A break iterator to find the first characters of words
+   *                  that are to be titlecased.
+   *                  If none is provided (0), then a standard titlecase
+   *                  break iterator is opened.
+   *                  Otherwise the provided iterator is set to the string's text.
+   * @return A reference to this.
+   * @stable ICU 2.1
+   */
+  UnicodeString &toTitle(BreakIterator *titleIter);
+
+  /**
+   * Titlecase this string.
+   *
+   * Casing is locale-dependent and context-sensitive.
+   * Titlecasing uses a break iterator to find the first characters of words
+   * that are to be titlecased. It titlecases those characters and lowercases
+   * all others.
+   *
+   * The titlecase break iterator can be provided to customize for arbitrary
+   * styles, using rules and dictionaries beyond the standard iterators.
+   * It may be more efficient to always provide an iterator to avoid
+   * opening and closing one for each string.
+   * The standard titlecase iterator for the root locale implements the
+   * algorithm of Unicode TR 21.
+   *
+   * This function uses only the setText(), first() and next() methods of the
+   * provided break iterator.
+   *
+   * @param titleIter A break iterator to find the first characters of words
+   *                  that are to be titlecased.
+   *                  If none is provided (0), then a standard titlecase
+   *                  break iterator is opened.
+   *                  Otherwise the provided iterator is set to the string's text.
+   * @param locale    The locale to consider.
+   * @return A reference to this.
+   * @stable ICU 2.1
+   */
+  UnicodeString &toTitle(BreakIterator *titleIter, const Locale &locale);
+
+  /**
+   * Titlecase this string, with options.
+   *
+   * Casing is locale-dependent and context-sensitive.
+   * Titlecasing uses a break iterator to find the first characters of words
+   * that are to be titlecased. It titlecases those characters and lowercases
+   * all others. (This can be modified with options.)
+   *
+   * The titlecase break iterator can be provided to customize for arbitrary
+   * styles, using rules and dictionaries beyond the standard iterators.
+   * It may be more efficient to always provide an iterator to avoid
+   * opening and closing one for each string.
+   * The standard titlecase iterator for the root locale implements the
+   * algorithm of Unicode TR 21.
+   *
+   * This function uses only the setText(), first() and next() methods of the
+   * provided break iterator.
+   *
+   * @param titleIter A break iterator to find the first characters of words
+   *                  that are to be titlecased.
+   *                  If none is provided (0), then a standard titlecase
+   *                  break iterator is opened.
+   *                  Otherwise the provided iterator is set to the string's text.
+   * @param locale    The locale to consider.
+   * @param options   Options bit set, usually 0. See U_TITLECASE_NO_LOWERCASE,
+   *                  U_TITLECASE_NO_BREAK_ADJUSTMENT, U_TITLECASE_ADJUST_TO_CASED,
+   *                  U_TITLECASE_WHOLE_STRING, U_TITLECASE_SENTENCES.
+   * @param options Options bit set, see ucasemap_open().
+   * @return A reference to this.
+   * @stable ICU 3.8
+   */
+  UnicodeString &toTitle(BreakIterator *titleIter, const Locale &locale, uint32_t options);
+
+#endif
+
+  /**
+   * Case-folds the characters in this string.
+   *
+   * Case-folding is locale-independent and not context-sensitive,
+   * but there is an option for whether to include or exclude mappings for dotted I
+   * and dotless i that are marked with 'T' in CaseFolding.txt.
+   *
+   * The result may be longer or shorter than the original.
+   *
+   * @param options Either U_FOLD_CASE_DEFAULT or U_FOLD_CASE_EXCLUDE_SPECIAL_I
+   * @return A reference to this.
+   * @stable ICU 2.0
+   */
+  UnicodeString &foldCase(uint32_t options=0 /*U_FOLD_CASE_DEFAULT*/);
+
+  //========================================
+  // Access to the internal buffer
+  //========================================
+
+  /**
+   * Get a read/write pointer to the internal buffer.
+   * The buffer is guaranteed to be large enough for at least minCapacity char16_ts,
+   * writable, and is still owned by the UnicodeString object.
+   * Calls to getBuffer(minCapacity) must not be nested, and
+   * must be matched with calls to releaseBuffer(newLength).
+   * If the string buffer was read-only or shared,
+   * then it will be reallocated and copied.
+   *
+   * An attempted nested call will return 0, and will not further modify the
+   * state of the UnicodeString object.
+   * It also returns 0 if the string is bogus.
+   *
+   * The actual capacity of the string buffer may be larger than minCapacity.
+   * getCapacity() returns the actual capacity.
+   * For many operations, the full capacity should be used to avoid reallocations.
+   *
+   * While the buffer is "open" between getBuffer(minCapacity)
+   * and releaseBuffer(newLength), the following applies:
+   * - The string length is set to 0.
+   * - Any read API call on the UnicodeString object will behave like on a 0-length string.
+   * - Any write API call on the UnicodeString object is disallowed and will have no effect.
+   * - You can read from and write to the returned buffer.
+   * - The previous string contents will still be in the buffer;
+   *   if you want to use it, then you need to call length() before getBuffer(minCapacity).
+   *   If the length() was greater than minCapacity, then any contents after minCapacity
+   *   may be lost.
+   *   The buffer contents is not NUL-terminated by getBuffer().
+   *   If length()<getCapacity() then you can terminate it by writing a NUL
+   *   at index length().
+   * - You must call releaseBuffer(newLength) before and in order to
+   *   return to normal UnicodeString operation.
+   *
+   * @param minCapacity the minimum number of char16_ts that are to be available
+   *        in the buffer, starting at the returned pointer;
+   *        default to the current string capacity if minCapacity==-1
+   * @return a writable pointer to the internal string buffer,
+   *         or nullptr if an error occurs (nested calls, out of memory)
+   *
+   * @see releaseBuffer
+   * @see getTerminatedBuffer()
+   * @stable ICU 2.0
+   */
+  char16_t *getBuffer(int32_t minCapacity);
+
+  /**
+   * Release a read/write buffer on a UnicodeString object with an
+   * "open" getBuffer(minCapacity).
+   * This function must be called in a matched pair with getBuffer(minCapacity).
+   * releaseBuffer(newLength) must be called if and only if a getBuffer(minCapacity) is "open".
+   *
+   * It will set the string length to newLength, at most to the current capacity.
+   * If newLength==-1 then it will set the length according to the
+   * first NUL in the buffer, or to the capacity if there is no NUL.
+   *
+   * After calling releaseBuffer(newLength) the UnicodeString is back to normal operation.
+   *
+   * @param newLength the new length of the UnicodeString object;
+   *        defaults to the current capacity if newLength is greater than that;
+   *        if newLength==-1, it defaults to u_strlen(buffer) but not more than
+   *        the current capacity of the string
+   *
+   * @see getBuffer(int32_t minCapacity)
+   * @stable ICU 2.0
+   */
+  void releaseBuffer(int32_t newLength=-1);
+
+  /**
+   * Get a read-only pointer to the internal buffer.
+   * This can be called at any time on a valid UnicodeString.
+   *
+   * It returns 0 if the string is bogus, or
+   * during an "open" getBuffer(minCapacity).
+   *
+   * It can be called as many times as desired.
+   * The pointer that it returns will remain valid until the UnicodeString object is modified,
+   * at which time the pointer is semantically invalidated and must not be used any more.
+   *
+   * The capacity of the buffer can be determined with getCapacity().
+   * The part after length() may or may not be initialized and valid,
+   * depending on the history of the UnicodeString object.
+   *
+   * The buffer contents is (probably) not NUL-terminated.
+   * You can check if it is with
+   * <code>(s.length()<s.getCapacity() && buffer[s.length()]==0)</code>.
+   * (See getTerminatedBuffer().)
+   *
+   * The buffer may reside in read-only memory. Its contents must not
+   * be modified.
+   *
+   * @return a read-only pointer to the internal string buffer,
+   *         or nullptr if the string is empty or bogus
+   *
+   * @see getBuffer(int32_t minCapacity)
+   * @see getTerminatedBuffer()
+   * @stable ICU 2.0
+   */
+  inline const char16_t *getBuffer() const;
+
+  /**
+   * Get a read-only pointer to the internal buffer,
+   * making sure that it is NUL-terminated.
+   * This can be called at any time on a valid UnicodeString.
+   *
+   * It returns 0 if the string is bogus, or
+   * during an "open" getBuffer(minCapacity), or if the buffer cannot
+   * be NUL-terminated (because memory allocation failed).
+   *
+   * It can be called as many times as desired.
+   * The pointer that it returns will remain valid until the UnicodeString object is modified,
+   * at which time the pointer is semantically invalidated and must not be used any more.
+   *
+   * The capacity of the buffer can be determined with getCapacity().
+   * The part after length()+1 may or may not be initialized and valid,
+   * depending on the history of the UnicodeString object.
+   *
+   * The buffer contents is guaranteed to be NUL-terminated.
+   * getTerminatedBuffer() may reallocate the buffer if a terminating NUL
+   * is written.
+   * For this reason, this function is not const, unlike getBuffer().
+   * Note that a UnicodeString may also contain NUL characters as part of its contents.
+   *
+   * The buffer may reside in read-only memory. Its contents must not
+   * be modified.
+   *
+   * @return a read-only pointer to the internal string buffer,
+   *         or 0 if the string is empty or bogus
+   *
+   * @see getBuffer(int32_t minCapacity)
+   * @see getBuffer()
+   * @stable ICU 2.2
+   */
+  const char16_t *getTerminatedBuffer();
+
+  //========================================
+  // Constructors
+  //========================================
+
+  /** Construct an empty UnicodeString.
+   * @stable ICU 2.0
+   */
+  inline UnicodeString();
+
+  /**
+   * Construct a UnicodeString with capacity to hold <TT>capacity</TT> char16_ts
+   * @param capacity the number of char16_ts this UnicodeString should hold
+   * before a resize is necessary; if count is greater than 0 and count
+   * code points c take up more space than capacity, then capacity is adjusted
+   * accordingly.
+   * @param c is used to initially fill the string
+   * @param count specifies how many code points c are to be written in the
+   *              string
+   * @stable ICU 2.0
+   */
+  UnicodeString(int32_t capacity, UChar32 c, int32_t count);
+
+  /**
+   * Single char16_t (code unit) constructor.
+   *
+   * It is recommended to mark this constructor "explicit" by
+   * <code>-DUNISTR_FROM_CHAR_EXPLICIT=explicit</code>
+   * on the compiler command line or similar.
+   * @param ch the character to place in the UnicodeString
+   * @stable ICU 2.0
+   */
+  UNISTR_FROM_CHAR_EXPLICIT UnicodeString(char16_t ch);
+
+  /**
+   * Single UChar32 (code point) constructor.
+   *
+   * It is recommended to mark this constructor "explicit" by
+   * <code>-DUNISTR_FROM_CHAR_EXPLICIT=explicit</code>
+   * on the compiler command line or similar.
+   * @param ch the character to place in the UnicodeString
+   * @stable ICU 2.0
+   */
+  UNISTR_FROM_CHAR_EXPLICIT UnicodeString(UChar32 ch);
+
+  /**
+   * char16_t* constructor.
+   *
+   * It is recommended to mark this constructor "explicit" by
+   * <code>-DUNISTR_FROM_STRING_EXPLICIT=explicit</code>
+   * on the compiler command line or similar.
+   * @param text The characters to place in the UnicodeString.  <TT>text</TT>
+   * must be NULL (U+0000) terminated.
+   * @stable ICU 2.0
+   */
+  UNISTR_FROM_STRING_EXPLICIT UnicodeString(const char16_t *text);
+
+#if !U_CHAR16_IS_TYPEDEF
+  /**
+   * uint16_t * constructor.
+   * Delegates to UnicodeString(const char16_t *).
+   *
+   * It is recommended to mark this constructor "explicit" by
+   * <code>-DUNISTR_FROM_STRING_EXPLICIT=explicit</code>
+   * on the compiler command line or similar.
+   * @param text NUL-terminated UTF-16 string
+   * @stable ICU 59
+   */
+  UNISTR_FROM_STRING_EXPLICIT UnicodeString(const uint16_t *text) :
+      UnicodeString(ConstChar16Ptr(text)) {}
+#endif
+
+#if U_SIZEOF_WCHAR_T==2 || defined(U_IN_DOXYGEN)
+  /**
+   * wchar_t * constructor.
+   * (Only defined if U_SIZEOF_WCHAR_T==2.)
+   * Delegates to UnicodeString(const char16_t *).
+   *
+   * It is recommended to mark this constructor "explicit" by
+   * <code>-DUNISTR_FROM_STRING_EXPLICIT=explicit</code>
+   * on the compiler command line or similar.
+   * @param text NUL-terminated UTF-16 string
+   * @stable ICU 59
+   */
+  UNISTR_FROM_STRING_EXPLICIT UnicodeString(const wchar_t *text) :
+      UnicodeString(ConstChar16Ptr(text)) {}
+#endif
+
+  /**
+   * nullptr_t constructor.
+   * Effectively the same as the default constructor, makes an empty string object.
+   *
+   * It is recommended to mark this constructor "explicit" by
+   * <code>-DUNISTR_FROM_STRING_EXPLICIT=explicit</code>
+   * on the compiler command line or similar.
+   * @param text nullptr
+   * @stable ICU 59
+   */
+  UNISTR_FROM_STRING_EXPLICIT inline UnicodeString(const std::nullptr_t text);
+
+  /**
+   * char16_t* constructor.
+   * @param text The characters to place in the UnicodeString.
+   * @param textLength The number of Unicode characters in <TT>text</TT>
+   * to copy.
+   * @stable ICU 2.0
+   */
+  UnicodeString(const char16_t *text,
+        int32_t textLength);
+
+#if !U_CHAR16_IS_TYPEDEF
+  /**
+   * uint16_t * constructor.
+   * Delegates to UnicodeString(const char16_t *, int32_t).
+   * @param text UTF-16 string
+   * @param length string length
+   * @stable ICU 59
+   */
+  UnicodeString(const uint16_t *text, int32_t length) :
+      UnicodeString(ConstChar16Ptr(text), length) {}
+#endif
+
+#if U_SIZEOF_WCHAR_T==2 || defined(U_IN_DOXYGEN)
+  /**
+   * wchar_t * constructor.
+   * (Only defined if U_SIZEOF_WCHAR_T==2.)
+   * Delegates to UnicodeString(const char16_t *, int32_t).
+   * @param text NUL-terminated UTF-16 string
+   * @param length string length
+   * @stable ICU 59
+   */
+  UnicodeString(const wchar_t *text, int32_t length) :
+      UnicodeString(ConstChar16Ptr(text), length) {}
+#endif
+
+  /**
+   * nullptr_t constructor.
+   * Effectively the same as the default constructor, makes an empty string object.
+   * @param text nullptr
+   * @param length ignored
+   * @stable ICU 59
+   */
+  inline UnicodeString(const std::nullptr_t text, int32_t length);
+
+  /**
+   * Readonly-aliasing char16_t* constructor.
+   * The text will be used for the UnicodeString object, but
+   * it will not be released when the UnicodeString is destroyed.
+   * This has copy-on-write semantics:
+   * When the string is modified, then the buffer is first copied into
+   * newly allocated memory.
+   * The aliased buffer is never modified.
+   *
+   * In an assignment to another UnicodeString, when using the copy constructor
+   * or the assignment operator, the text will be copied.
+   * When using fastCopyFrom(), the text will be aliased again,
+   * so that both strings then alias the same readonly-text.
+   *
+   * @param isTerminated specifies if <code>text</code> is <code>NUL</code>-terminated.
+   *                     This must be true if <code>textLength==-1</code>.
+   * @param text The characters to alias for the UnicodeString.
+   * @param textLength The number of Unicode characters in <code>text</code> to alias.
+   *                   If -1, then this constructor will determine the length
+   *                   by calling <code>u_strlen()</code>.
+   * @stable ICU 2.0
+   */
+  UnicodeString(UBool isTerminated,
+                ConstChar16Ptr text,
+                int32_t textLength);
+
+  /**
+   * Writable-aliasing char16_t* constructor.
+   * The text will be used for the UnicodeString object, but
+   * it will not be released when the UnicodeString is destroyed.
+   * This has write-through semantics:
+   * For as long as the capacity of the buffer is sufficient, write operations
+   * will directly affect the buffer. When more capacity is necessary, then
+   * a new buffer will be allocated and the contents copied as with regularly
+   * constructed strings.
+   * In an assignment to another UnicodeString, the buffer will be copied.
+   * The extract(Char16Ptr dst) function detects whether the dst pointer is the same
+   * as the string buffer itself and will in this case not copy the contents.
+   *
+   * @param buffer The characters to alias for the UnicodeString.
+   * @param buffLength The number of Unicode characters in <code>buffer</code> to alias.
+   * @param buffCapacity The size of <code>buffer</code> in char16_ts.
+   * @stable ICU 2.0
+   */
+  UnicodeString(char16_t *buffer, int32_t buffLength, int32_t buffCapacity);
+
+#if !U_CHAR16_IS_TYPEDEF
+  /**
+   * Writable-aliasing uint16_t * constructor.
+   * Delegates to UnicodeString(const char16_t *, int32_t, int32_t).
+   * @param buffer writable buffer of/for UTF-16 text
+   * @param buffLength length of the current buffer contents
+   * @param buffCapacity buffer capacity
+   * @stable ICU 59
+   */
+  UnicodeString(uint16_t *buffer, int32_t buffLength, int32_t buffCapacity) :
+      UnicodeString(Char16Ptr(buffer), buffLength, buffCapacity) {}
+#endif
+
+#if U_SIZEOF_WCHAR_T==2 || defined(U_IN_DOXYGEN)
+  /**
+   * Writable-aliasing wchar_t * constructor.
+   * (Only defined if U_SIZEOF_WCHAR_T==2.)
+   * Delegates to UnicodeString(const char16_t *, int32_t, int32_t).
+   * @param buffer writable buffer of/for UTF-16 text
+   * @param buffLength length of the current buffer contents
+   * @param buffCapacity buffer capacity
+   * @stable ICU 59
+   */
+  UnicodeString(wchar_t *buffer, int32_t buffLength, int32_t buffCapacity) :
+      UnicodeString(Char16Ptr(buffer), buffLength, buffCapacity) {}
+#endif
+
+  /**
+   * Writable-aliasing nullptr_t constructor.
+   * Effectively the same as the default constructor, makes an empty string object.
+   * @param buffer nullptr
+   * @param buffLength ignored
+   * @param buffCapacity ignored
+   * @stable ICU 59
+   */
+  inline UnicodeString(std::nullptr_t buffer, int32_t buffLength, int32_t buffCapacity);
+
+#if U_CHARSET_IS_UTF8 || !UCONFIG_NO_CONVERSION
+
+  /**
+   * char* constructor.
+   * Uses the default converter (and thus depends on the ICU conversion code)
+   * unless U_CHARSET_IS_UTF8 is set to 1.
+   *
+   * For ASCII (really "invariant character") strings it is more efficient to use
+   * the constructor that takes a US_INV (for its enum EInvariant).
+   * For ASCII (invariant-character) string literals, see UNICODE_STRING and
+   * UNICODE_STRING_SIMPLE.
+   *
+   * It is recommended to mark this constructor "explicit" by
+   * <code>-DUNISTR_FROM_STRING_EXPLICIT=explicit</code>
+   * on the compiler command line or similar.
+   * @param codepageData an array of bytes, null-terminated,
+   *                     in the platform's default codepage.
+   * @stable ICU 2.0
+   * @see UNICODE_STRING
+   * @see UNICODE_STRING_SIMPLE
+   */
+  UNISTR_FROM_STRING_EXPLICIT UnicodeString(const char *codepageData);
+
+  /**
+   * char* constructor.
+   * Uses the default converter (and thus depends on the ICU conversion code)
+   * unless U_CHARSET_IS_UTF8 is set to 1.
+   * @param codepageData an array of bytes in the platform's default codepage.
+   * @param dataLength The number of bytes in <TT>codepageData</TT>.
+   * @stable ICU 2.0
+   */
+  UnicodeString(const char *codepageData, int32_t dataLength);
+
+#endif
+
+#if !UCONFIG_NO_CONVERSION
+
+  /**
+   * char* constructor.
+   * @param codepageData an array of bytes, null-terminated
+   * @param codepage the encoding of <TT>codepageData</TT>.  The special
+   * value 0 for <TT>codepage</TT> indicates that the text is in the
+   * platform's default codepage.
+   *
+   * If <code>codepage</code> is an empty string (<code>""</code>),
+   * then a simple conversion is performed on the codepage-invariant
+   * subset ("invariant characters") of the platform encoding. See utypes.h.
+   * Recommendation: For invariant-character strings use the constructor
+   * UnicodeString(const char *src, int32_t length, enum EInvariant inv)
+   * because it avoids object code dependencies of UnicodeString on
+   * the conversion code.
+   *
+   * @stable ICU 2.0
+   */
+  UnicodeString(const char *codepageData, const char *codepage);
+
+  /**
+   * char* constructor.
+   * @param codepageData an array of bytes.
+   * @param dataLength The number of bytes in <TT>codepageData</TT>.
+   * @param codepage the encoding of <TT>codepageData</TT>.  The special
+   * value 0 for <TT>codepage</TT> indicates that the text is in the
+   * platform's default codepage.
+   * If <code>codepage</code> is an empty string (<code>""</code>),
+   * then a simple conversion is performed on the codepage-invariant
+   * subset ("invariant characters") of the platform encoding. See utypes.h.
+   * Recommendation: For invariant-character strings use the constructor
+   * UnicodeString(const char *src, int32_t length, enum EInvariant inv)
+   * because it avoids object code dependencies of UnicodeString on
+   * the conversion code.
+   *
+   * @stable ICU 2.0
+   */
+  UnicodeString(const char *codepageData, int32_t dataLength, const char *codepage);
+
+  /**
+   * char * / UConverter constructor.
+   * This constructor uses an existing UConverter object to
+   * convert the codepage string to Unicode and construct a UnicodeString
+   * from that.
+   *
+   * The converter is reset at first.
+   * If the error code indicates a failure before this constructor is called,
+   * or if an error occurs during conversion or construction,
+   * then the string will be bogus.
+   *
+   * This function avoids the overhead of opening and closing a converter if
+   * multiple strings are constructed.
+   *
+   * @param src input codepage string
+   * @param srcLength length of the input string, can be -1 for NUL-terminated strings
+   * @param cnv converter object (ucnv_resetToUnicode() will be called),
+   *        can be NULL for the default converter
+   * @param errorCode normal ICU error code
+   * @stable ICU 2.0
+   */
+  UnicodeString(
+        const char *src, int32_t srcLength,
+        UConverter *cnv,
+        UErrorCode &errorCode);
+
+#endif
+
+  /**
+   * Constructs a Unicode string from an invariant-character char * string.
+   * About invariant characters see utypes.h.
+   * This constructor has no runtime dependency on conversion code and is
+   * therefore recommended over ones taking a charset name string
+   * (where the empty string "" indicates invariant-character conversion).
+   *
+   * Use the macro US_INV as the third, signature-distinguishing parameter.
+   *
+   * For example:
+   * \code
+   * void fn(const char *s) {
+   *   UnicodeString ustr(s, -1, US_INV);
+   *   // use ustr ...
+   * }
+   * \endcode
+   *
+   * @param src String using only invariant characters.
+   * @param length Length of src, or -1 if NUL-terminated.
+   * @param inv Signature-distinguishing paramater, use US_INV.
+   *
+   * @see US_INV
+   * @stable ICU 3.2
+   */
+  UnicodeString(const char *src, int32_t length, enum EInvariant inv);
+
+
+  /**
+   * Copy constructor.
+   *
+   * Starting with ICU 2.4, the assignment operator and the copy constructor
+   * allocate a new buffer and copy the buffer contents even for readonly aliases.
+   * By contrast, the fastCopyFrom() function implements the old,
+   * more efficient but less safe behavior
+   * of making this string also a readonly alias to the same buffer.
+   *
+   * If the source object has an "open" buffer from getBuffer(minCapacity),
+   * then the copy is an empty string.
+   *
+   * @param that The UnicodeString object to copy.
+   * @stable ICU 2.0
+   * @see fastCopyFrom
+   */
+  UnicodeString(const UnicodeString& that);
+
+  /**
+   * Move constructor, might leave src in bogus state.
+   * This string will have the same contents and state that the source string had.
+   * @param src source string
+   * @stable ICU 56
+   */
+  UnicodeString(UnicodeString &&src) U_NOEXCEPT;
+
+  /**
+   * 'Substring' constructor from tail of source string.
+   * @param src The UnicodeString object to copy.
+   * @param srcStart The offset into <tt>src</tt> at which to start copying.
+   * @stable ICU 2.2
+   */
+  UnicodeString(const UnicodeString& src, int32_t srcStart);
+
+  /**
+   * 'Substring' constructor from subrange of source string.
+   * @param src The UnicodeString object to copy.
+   * @param srcStart The offset into <tt>src</tt> at which to start copying.
+   * @param srcLength The number of characters from <tt>src</tt> to copy.
+   * @stable ICU 2.2
+   */
+  UnicodeString(const UnicodeString& src, int32_t srcStart, int32_t srcLength);
+
+  /**
+   * Clone this object, an instance of a subclass of Replaceable.
+   * Clones can be used concurrently in multiple threads.
+   * If a subclass does not implement clone(), or if an error occurs,
+   * then NULL is returned.
+   * The clone functions in all subclasses return a pointer to a Replaceable
+   * because some compilers do not support covariant (same-as-this)
+   * return types; cast to the appropriate subclass if necessary.
+   * The caller must delete the clone.
+   *
+   * @return a clone of this object
+   *
+   * @see Replaceable::clone
+   * @see getDynamicClassID
+   * @stable ICU 2.6
+   */
+  virtual Replaceable *clone() const;
+
+  /** Destructor.
+   * @stable ICU 2.0
+   */
+  virtual ~UnicodeString();
+
+  /**
+   * Create a UnicodeString from a UTF-8 string.
+   * Illegal input is replaced with U+FFFD. Otherwise, errors result in a bogus string.
+   * Calls u_strFromUTF8WithSub().
+   *
+   * @param utf8 UTF-8 input string.
+   *             Note that a StringPiece can be implicitly constructed
+   *             from a std::string or a NUL-terminated const char * string.
+   * @return A UnicodeString with equivalent UTF-16 contents.
+   * @see toUTF8
+   * @see toUTF8String
+   * @stable ICU 4.2
+   */
+  static UnicodeString fromUTF8(StringPiece utf8);
+
+  /**
+   * Create a UnicodeString from a UTF-32 string.
+   * Illegal input is replaced with U+FFFD. Otherwise, errors result in a bogus string.
+   * Calls u_strFromUTF32WithSub().
+   *
+   * @param utf32 UTF-32 input string. Must not be NULL.
+   * @param length Length of the input string, or -1 if NUL-terminated.
+   * @return A UnicodeString with equivalent UTF-16 contents.
+   * @see toUTF32
+   * @stable ICU 4.2
+   */
+  static UnicodeString fromUTF32(const UChar32 *utf32, int32_t length);
+
+  /* Miscellaneous operations */
+
+  /**
+   * Unescape a string of characters and return a string containing
+   * the result.  The following escape sequences are recognized:
+   *
+   * \\uhhhh       4 hex digits; h in [0-9A-Fa-f]
+   * \\Uhhhhhhhh   8 hex digits
+   * \\xhh         1-2 hex digits
+   * \\ooo         1-3 octal digits; o in [0-7]
+   * \\cX          control-X; X is masked with 0x1F
+   *
+   * as well as the standard ANSI C escapes:
+   *
+   * \\a => U+0007, \\b => U+0008, \\t => U+0009, \\n => U+000A,
+   * \\v => U+000B, \\f => U+000C, \\r => U+000D, \\e => U+001B,
+   * \\&quot; => U+0022, \\' => U+0027, \\? => U+003F, \\\\ => U+005C
+   *
+   * Anything else following a backslash is generically escaped.  For
+   * example, "[a\\-z]" returns "[a-z]".
+   *
+   * If an escape sequence is ill-formed, this method returns an empty
+   * string.  An example of an ill-formed sequence is "\\u" followed by
+   * fewer than 4 hex digits.
+   *
+   * This function is similar to u_unescape() but not identical to it.
+   * The latter takes a source char*, so it does escape recognition
+   * and also invariant conversion.
+   *
+   * @return a string with backslash escapes interpreted, or an
+   * empty string on error.
+   * @see UnicodeString#unescapeAt()
+   * @see u_unescape()
+   * @see u_unescapeAt()
+   * @stable ICU 2.0
+   */
+  UnicodeString unescape() const;
+
+  /**
+   * Unescape a single escape sequence and return the represented
+   * character.  See unescape() for a listing of the recognized escape
+   * sequences.  The character at offset-1 is assumed (without
+   * checking) to be a backslash.  If the escape sequence is
+   * ill-formed, or the offset is out of range, U_SENTINEL=-1 is
+   * returned.
+   *
+   * @param offset an input output parameter.  On input, it is the
+   * offset into this string where the escape sequence is located,
+   * after the initial backslash.  On output, it is advanced after the
+   * last character parsed.  On error, it is not advanced at all.
+   * @return the character represented by the escape sequence at
+   * offset, or U_SENTINEL=-1 on error.
+   * @see UnicodeString#unescape()
+   * @see u_unescape()
+   * @see u_unescapeAt()
+   * @stable ICU 2.0
+   */
+  UChar32 unescapeAt(int32_t &offset) const;
+
+  /**
+   * ICU "poor man's RTTI", returns a UClassID for this class.
+   *
+   * @stable ICU 2.2
+   */
+  static UClassID U_EXPORT2 getStaticClassID();
+
+  /**
+   * ICU "poor man's RTTI", returns a UClassID for the actual class.
+   *
+   * @stable ICU 2.2
+   */
+  virtual UClassID getDynamicClassID() const;
+
+  //========================================
+  // Implementation methods
+  //========================================
+
+protected:
+  /**
+   * Implement Replaceable::getLength() (see jitterbug 1027).
+   * @stable ICU 2.4
+   */
+  virtual int32_t getLength() const;
+
+  /**
+   * The change in Replaceable to use virtual getCharAt() allows
+   * UnicodeString::charAt() to be inline again (see jitterbug 709).
+   * @stable ICU 2.4
+   */
+  virtual char16_t getCharAt(int32_t offset) const;
+
+  /**
+   * The change in Replaceable to use virtual getChar32At() allows
+   * UnicodeString::char32At() to be inline again (see jitterbug 709).
+   * @stable ICU 2.4
+   */
+  virtual UChar32 getChar32At(int32_t offset) const;
+
+private:
+  // For char* constructors. Could be made public.
+  UnicodeString &setToUTF8(StringPiece utf8);
+  // For extract(char*).
+  // We could make a toUTF8(target, capacity, errorCode) public but not
+  // this version: New API will be cleaner if we make callers create substrings
+  // rather than having start+length on every method,
+  // and it should take a UErrorCode&.
+  int32_t
+  toUTF8(int32_t start, int32_t len,
+         char *target, int32_t capacity) const;
+
+  /**
+   * Internal string contents comparison, called by operator==.
+   * Requires: this & text not bogus and have same lengths.
+   */
+  UBool doEquals(const UnicodeString &text, int32_t len) const;
+
+  inline int8_t
+  doCompare(int32_t start,
+           int32_t length,
+           const UnicodeString& srcText,
+           int32_t srcStart,
+           int32_t srcLength) const;
+
+  int8_t doCompare(int32_t start,
+           int32_t length,
+           const char16_t *srcChars,
+           int32_t srcStart,
+           int32_t srcLength) const;
+
+  inline int8_t
+  doCompareCodePointOrder(int32_t start,
+                          int32_t length,
+                          const UnicodeString& srcText,
+                          int32_t srcStart,
+                          int32_t srcLength) const;
+
+  int8_t doCompareCodePointOrder(int32_t start,
+                                 int32_t length,
+                                 const char16_t *srcChars,
+                                 int32_t srcStart,
+                                 int32_t srcLength) const;
+
+  inline int8_t
+  doCaseCompare(int32_t start,
+                int32_t length,
+                const UnicodeString &srcText,
+                int32_t srcStart,
+                int32_t srcLength,
+                uint32_t options) const;
+
+  int8_t
+  doCaseCompare(int32_t start,
+                int32_t length,
+                const char16_t *srcChars,
+                int32_t srcStart,
+                int32_t srcLength,
+                uint32_t options) const;
+
+  int32_t doIndexOf(char16_t c,
+            int32_t start,
+            int32_t length) const;
+
+  int32_t doIndexOf(UChar32 c,
+                        int32_t start,
+                        int32_t length) const;
+
+  int32_t doLastIndexOf(char16_t c,
+                int32_t start,
+                int32_t length) const;
+
+  int32_t doLastIndexOf(UChar32 c,
+                            int32_t start,
+                            int32_t length) const;
+
+  void doExtract(int32_t start,
+         int32_t length,
+         char16_t *dst,
+         int32_t dstStart) const;
+
+  inline void doExtract(int32_t start,
+         int32_t length,
+         UnicodeString& target) const;
+
+  inline char16_t doCharAt(int32_t offset)  const;
+
+  UnicodeString& doReplace(int32_t start,
+               int32_t length,
+               const UnicodeString& srcText,
+               int32_t srcStart,
+               int32_t srcLength);
+
+  UnicodeString& doReplace(int32_t start,
+               int32_t length,
+               const char16_t *srcChars,
+               int32_t srcStart,
+               int32_t srcLength);
+
+  UnicodeString& doAppend(const UnicodeString& src, int32_t srcStart, int32_t srcLength);
+  UnicodeString& doAppend(const char16_t *srcChars, int32_t srcStart, int32_t srcLength);
+
+  UnicodeString& doReverse(int32_t start,
+               int32_t length);
+
+  // calculate hash code
+  int32_t doHashCode(void) const;
+
+  // get pointer to start of array
+  // these do not check for kOpenGetBuffer, unlike the public getBuffer() function
+  inline char16_t* getArrayStart(void);
+  inline const char16_t* getArrayStart(void) const;
+
+  inline UBool hasShortLength() const;
+  inline int32_t getShortLength() const;
+
+  // A UnicodeString object (not necessarily its current buffer)
+  // is writable unless it isBogus() or it has an "open" getBuffer(minCapacity).
+  inline UBool isWritable() const;
+
+  // Is the current buffer writable?
+  inline UBool isBufferWritable() const;
+
+  // None of the following does releaseArray().
+  inline void setZeroLength();
+  inline void setShortLength(int32_t len);
+  inline void setLength(int32_t len);
+  inline void setToEmpty();
+  inline void setArray(char16_t *array, int32_t len, int32_t capacity); // sets length but not flags
+
+  // allocate the array; result may be the stack buffer
+  // sets refCount to 1 if appropriate
+  // sets fArray, fCapacity, and flags
+  // sets length to 0
+  // returns boolean for success or failure
+  UBool allocate(int32_t capacity);
+
+  // release the array if owned
+  void releaseArray(void);
+
+  // turn a bogus string into an empty one
+  void unBogus();
+
+  // implements assigment operator, copy constructor, and fastCopyFrom()
+  UnicodeString &copyFrom(const UnicodeString &src, UBool fastCopy=FALSE);
+
+  // Copies just the fields without memory management.
+  void copyFieldsFrom(UnicodeString &src, UBool setSrcToBogus) U_NOEXCEPT;
+
+  // Pin start and limit to acceptable values.
+  inline void pinIndex(int32_t& start) const;
+  inline void pinIndices(int32_t& start,
+                         int32_t& length) const;
+
+#if !UCONFIG_NO_CONVERSION
+
+  /* Internal extract() using UConverter. */
+  int32_t doExtract(int32_t start, int32_t length,
+                    char *dest, int32_t destCapacity,
+                    UConverter *cnv,
+                    UErrorCode &errorCode) const;
+
+  /*
+   * Real constructor for converting from codepage data.
+   * It assumes that it is called with !fRefCounted.
+   *
+   * If <code>codepage==0</code>, then the default converter
+   * is used for the platform encoding.
+   * If <code>codepage</code> is an empty string (<code>""</code>),
+   * then a simple conversion is performed on the codepage-invariant
+   * subset ("invariant characters") of the platform encoding. See utypes.h.
+   */
+  void doCodepageCreate(const char *codepageData,
+                        int32_t dataLength,
+                        const char *codepage);
+
+  /*
+   * Worker function for creating a UnicodeString from
+   * a codepage string using a UConverter.
+   */
+  void
+  doCodepageCreate(const char *codepageData,
+                   int32_t dataLength,
+                   UConverter *converter,
+                   UErrorCode &status);
+
+#endif
+
+  /*
+   * This function is called when write access to the array
+   * is necessary.
+   *
+   * We need to make a copy of the array if
+   * the buffer is read-only, or
+   * the buffer is refCounted (shared), and refCount>1, or
+   * the buffer is too small.
+   *
+   * Return FALSE if memory could not be allocated.
+   */
+  UBool cloneArrayIfNeeded(int32_t newCapacity = -1,
+                            int32_t growCapacity = -1,
+                            UBool doCopyArray = TRUE,
+                            int32_t **pBufferToDelete = 0,
+                            UBool forceClone = FALSE);
+
+  /**
+   * Common function for UnicodeString case mappings.
+   * The stringCaseMapper has the same type UStringCaseMapper
+   * as in ustr_imp.h for ustrcase_map().
+   */
+  UnicodeString &
+  caseMap(int32_t caseLocale, uint32_t options,
+#if !UCONFIG_NO_BREAK_ITERATION
+          BreakIterator *iter,
+#endif
+          UStringCaseMapper *stringCaseMapper);
+
+  // ref counting
+  void addRef(void);
+  int32_t removeRef(void);
+  int32_t refCount(void) const;
+
+  // constants
+  enum {
+    /**
+     * Size of stack buffer for short strings.
+     * Must be at least U16_MAX_LENGTH for the single-code point constructor to work.
+     * @see UNISTR_OBJECT_SIZE
+     */
+    US_STACKBUF_SIZE=(int32_t)(UNISTR_OBJECT_SIZE-sizeof(void *)-2)/U_SIZEOF_UCHAR,
+    kInvalidUChar=0xffff, // U+FFFF returned by charAt(invalid index)
+    kInvalidHashCode=0, // invalid hash code
+    kEmptyHashCode=1, // hash code for empty string
+
+    // bit flag values for fLengthAndFlags
+    kIsBogus=1,         // this string is bogus, i.e., not valid or NULL
+    kUsingStackBuffer=2,// using fUnion.fStackFields instead of fUnion.fFields
+    kRefCounted=4,      // there is a refCount field before the characters in fArray
+    kBufferIsReadonly=8,// do not write to this buffer
+    kOpenGetBuffer=16,  // getBuffer(minCapacity) was called (is "open"),
+                        // and releaseBuffer(newLength) must be called
+    kAllStorageFlags=0x1f,
+
+    kLengthShift=5,     // remaining 11 bits for non-negative short length, or negative if long
+    kLength1=1<<kLengthShift,
+    kMaxShortLength=0x3ff,  // max non-negative short length (leaves top bit 0)
+    kLengthIsLarge=0xffe0,  // short length < 0, real length is in fUnion.fFields.fLength
+
+    // combined values for convenience
+    kShortString=kUsingStackBuffer,
+    kLongString=kRefCounted,
+    kReadonlyAlias=kBufferIsReadonly,
+    kWritableAlias=0
+  };
+
+  friend class UnicodeStringAppendable;
+
+  union StackBufferOrFields;        // forward declaration necessary before friend declaration
+  friend union StackBufferOrFields; // make US_STACKBUF_SIZE visible inside fUnion
+
+  /*
+   * The following are all the class fields that are stored
+   * in each UnicodeString object.
+   * Note that UnicodeString has virtual functions,
+   * therefore there is an implicit vtable pointer
+   * as the first real field.
+   * The fields should be aligned such that no padding is necessary.
+   * On 32-bit machines, the size should be 32 bytes,
+   * on 64-bit machines (8-byte pointers), it should be 40 bytes.
+   *
+   * We use a hack to achieve this.
+   *
+   * With at least some compilers, each of the following is forced to
+   * a multiple of sizeof(pointer) [the largest field base unit here is a data pointer],
+   * rounded up with additional padding if the fields do not already fit that requirement:
+   * - sizeof(class UnicodeString)
+   * - offsetof(UnicodeString, fUnion)
+   * - sizeof(fUnion)
+   * - sizeof(fStackFields)
+   *
+   * We optimize for the longest possible internal buffer for short strings.
+   * fUnion.fStackFields begins with 2 bytes for storage flags
+   * and the length of relatively short strings,
+   * followed by the buffer for short string contents.
+   * There is no padding inside fStackFields.
+   *
+   * Heap-allocated and aliased strings use fUnion.fFields.
+   * Both fStackFields and fFields must begin with the same fields for flags and short length,
+   * that is, those must have the same memory offsets inside the object,
+   * because the flags must be inspected in order to decide which half of fUnion is being used.
+   * We assume that the compiler does not reorder the fields.
+   *
+   * (Padding at the end of fFields is ok:
+   * As long as it is no larger than fStackFields, it is not wasted space.)
+   *
+   * For some of the history of the UnicodeString class fields layout, see
+   * - ICU ticket #11551 "longer UnicodeString contents in stack buffer"
+   * - ICU ticket #11336 "UnicodeString: recombine stack buffer arrays"
+   * - ICU ticket #8322 "why is sizeof(UnicodeString)==48?"
+   */
+  // (implicit) *vtable;
+  union StackBufferOrFields {
+    // fStackFields is used iff (fLengthAndFlags&kUsingStackBuffer) else fFields is used.
+    // Each struct of the union must begin with fLengthAndFlags.
+    struct {
+      int16_t fLengthAndFlags;          // bit fields: see constants above
+      char16_t fBuffer[US_STACKBUF_SIZE];  // buffer for short strings
+    } fStackFields;
+    struct {
+      int16_t fLengthAndFlags;          // bit fields: see constants above
+      int32_t fLength;    // number of characters in fArray if >127; else undefined
+      int32_t fCapacity;  // capacity of fArray (in char16_ts)
+      // array pointer last to minimize padding for machines with P128 data model
+      // or pointer sizes that are not a power of 2
+      char16_t   *fArray;    // the Unicode data
+    } fFields;
+  } fUnion;
+};
+
+/**
+ * Create a new UnicodeString with the concatenation of two others.
+ *
+ * @param s1 The first string to be copied to the new one.
+ * @param s2 The second string to be copied to the new one, after s1.
+ * @return UnicodeString(s1).append(s2)
+ * @stable ICU 2.8
+ */
+U_COMMON_API UnicodeString U_EXPORT2
+operator+ (const UnicodeString &s1, const UnicodeString &s2);
+
+//========================================
+// Inline members
+//========================================
+
+//========================================
+// Privates
+//========================================
+
+inline void
+UnicodeString::pinIndex(int32_t& start) const
+{
+  // pin index
+  if(start < 0) {
+    start = 0;
+  } else if(start > length()) {
+    start = length();
+  }
+}
+
+inline void
+UnicodeString::pinIndices(int32_t& start,
+                          int32_t& _length) const
+{
+  // pin indices
+  int32_t len = length();
+  if(start < 0) {
+    start = 0;
+  } else if(start > len) {
+    start = len;
+  }
+  if(_length < 0) {
+    _length = 0;
+  } else if(_length > (len - start)) {
+    _length = (len - start);
+  }
+}
+
+inline char16_t*
+UnicodeString::getArrayStart() {
+  return (fUnion.fFields.fLengthAndFlags&kUsingStackBuffer) ?
+    fUnion.fStackFields.fBuffer : fUnion.fFields.fArray;
+}
+
+inline const char16_t*
+UnicodeString::getArrayStart() const {
+  return (fUnion.fFields.fLengthAndFlags&kUsingStackBuffer) ?
+    fUnion.fStackFields.fBuffer : fUnion.fFields.fArray;
+}
+
+//========================================
+// Default constructor
+//========================================
+
+inline
+UnicodeString::UnicodeString() {
+  fUnion.fStackFields.fLengthAndFlags=kShortString;
+}
+
+inline UnicodeString::UnicodeString(const std::nullptr_t /*text*/) {
+  fUnion.fStackFields.fLengthAndFlags=kShortString;
+}
+
+inline UnicodeString::UnicodeString(const std::nullptr_t /*text*/, int32_t /*length*/) {
+  fUnion.fStackFields.fLengthAndFlags=kShortString;
+}
+
+inline UnicodeString::UnicodeString(std::nullptr_t /*buffer*/, int32_t /*buffLength*/, int32_t /*buffCapacity*/) {
+  fUnion.fStackFields.fLengthAndFlags=kShortString;
+}
+
+//========================================
+// Read-only implementation methods
+//========================================
+inline UBool
+UnicodeString::hasShortLength() const {
+  return fUnion.fFields.fLengthAndFlags>=0;
+}
+
+inline int32_t
+UnicodeString::getShortLength() const {
+  // fLengthAndFlags must be non-negative -> short length >= 0
+  // and arithmetic or logical shift does not matter.
+  return fUnion.fFields.fLengthAndFlags>>kLengthShift;
+}
+
+inline int32_t
+UnicodeString::length() const {
+  return hasShortLength() ? getShortLength() : fUnion.fFields.fLength;
+}
+
+inline int32_t
+UnicodeString::getCapacity() const {
+  return (fUnion.fFields.fLengthAndFlags&kUsingStackBuffer) ?
+    US_STACKBUF_SIZE : fUnion.fFields.fCapacity;
+}
+
+inline int32_t
+UnicodeString::hashCode() const
+{ return doHashCode(); }
+
+inline UBool
+UnicodeString::isBogus() const
+{ return (UBool)(fUnion.fFields.fLengthAndFlags & kIsBogus); }
+
+inline UBool
+UnicodeString::isWritable() const
+{ return (UBool)!(fUnion.fFields.fLengthAndFlags&(kOpenGetBuffer|kIsBogus)); }
+
+inline UBool
+UnicodeString::isBufferWritable() const
+{
+  return (UBool)(
+      !(fUnion.fFields.fLengthAndFlags&(kOpenGetBuffer|kIsBogus|kBufferIsReadonly)) &&
+      (!(fUnion.fFields.fLengthAndFlags&kRefCounted) || refCount()==1));
+}
+
+inline const char16_t *
+UnicodeString::getBuffer() const {
+  if(fUnion.fFields.fLengthAndFlags&(kIsBogus|kOpenGetBuffer)) {
+    return nullptr;
+  } else if(fUnion.fFields.fLengthAndFlags&kUsingStackBuffer) {
+    return fUnion.fStackFields.fBuffer;
+  } else {
+    return fUnion.fFields.fArray;
+  }
+}
+
+//========================================
+// Read-only alias methods
+//========================================
+inline int8_t
+UnicodeString::doCompare(int32_t start,
+              int32_t thisLength,
+              const UnicodeString& srcText,
+              int32_t srcStart,
+              int32_t srcLength) const
+{
+  if(srcText.isBogus()) {
+    return (int8_t)!isBogus(); // 0 if both are bogus, 1 otherwise
+  } else {
+    srcText.pinIndices(srcStart, srcLength);
+    return doCompare(start, thisLength, srcText.getArrayStart(), srcStart, srcLength);
+  }
+}
+
+inline UBool
+UnicodeString::operator== (const UnicodeString& text) const
+{
+  if(isBogus()) {
+    return text.isBogus();
+  } else {
+    int32_t len = length(), textLength = text.length();
+    return !text.isBogus() && len == textLength && doEquals(text, len);
+  }
+}
+
+inline UBool
+UnicodeString::operator!= (const UnicodeString& text) const
+{ return (! operator==(text)); }
+
+inline UBool
+UnicodeString::operator> (const UnicodeString& text) const
+{ return doCompare(0, length(), text, 0, text.length()) == 1; }
+
+inline UBool
+UnicodeString::operator< (const UnicodeString& text) const
+{ return doCompare(0, length(), text, 0, text.length()) == -1; }
+
+inline UBool
+UnicodeString::operator>= (const UnicodeString& text) const
+{ return doCompare(0, length(), text, 0, text.length()) != -1; }
+
+inline UBool
+UnicodeString::operator<= (const UnicodeString& text) const
+{ return doCompare(0, length(), text, 0, text.length()) != 1; }
+
+inline int8_t
+UnicodeString::compare(const UnicodeString& text) const
+{ return doCompare(0, length(), text, 0, text.length()); }
+
+inline int8_t
+UnicodeString::compare(int32_t start,
+               int32_t _length,
+               const UnicodeString& srcText) const
+{ return doCompare(start, _length, srcText, 0, srcText.length()); }
+
+inline int8_t
+UnicodeString::compare(ConstChar16Ptr srcChars,
+               int32_t srcLength) const
+{ return doCompare(0, length(), srcChars, 0, srcLength); }
+
+inline int8_t
+UnicodeString::compare(int32_t start,
+               int32_t _length,
+               const UnicodeString& srcText,
+               int32_t srcStart,
+               int32_t srcLength) const
+{ return doCompare(start, _length, srcText, srcStart, srcLength); }
+
+inline int8_t
+UnicodeString::compare(int32_t start,
+               int32_t _length,
+               const char16_t *srcChars) const
+{ return doCompare(start, _length, srcChars, 0, _length); }
+
+inline int8_t
+UnicodeString::compare(int32_t start,
+               int32_t _length,
+               const char16_t *srcChars,
+               int32_t srcStart,
+               int32_t srcLength) const
+{ return doCompare(start, _length, srcChars, srcStart, srcLength); }
+
+inline int8_t
+UnicodeString::compareBetween(int32_t start,
+                  int32_t limit,
+                  const UnicodeString& srcText,
+                  int32_t srcStart,
+                  int32_t srcLimit) const
+{ return doCompare(start, limit - start,
+           srcText, srcStart, srcLimit - srcStart); }
+
+inline int8_t
+UnicodeString::doCompareCodePointOrder(int32_t start,
+                                       int32_t thisLength,
+                                       const UnicodeString& srcText,
+                                       int32_t srcStart,
+                                       int32_t srcLength) const
+{
+  if(srcText.isBogus()) {
+    return (int8_t)!isBogus(); // 0 if both are bogus, 1 otherwise
+  } else {
+    srcText.pinIndices(srcStart, srcLength);
+    return doCompareCodePointOrder(start, thisLength, srcText.getArrayStart(), srcStart, srcLength);
+  }
+}
+
+inline int8_t
+UnicodeString::compareCodePointOrder(const UnicodeString& text) const
+{ return doCompareCodePointOrder(0, length(), text, 0, text.length()); }
+
+inline int8_t
+UnicodeString::compareCodePointOrder(int32_t start,
+                                     int32_t _length,
+                                     const UnicodeString& srcText) const
+{ return doCompareCodePointOrder(start, _length, srcText, 0, srcText.length()); }
+
+inline int8_t
+UnicodeString::compareCodePointOrder(ConstChar16Ptr srcChars,
+                                     int32_t srcLength) const
+{ return doCompareCodePointOrder(0, length(), srcChars, 0, srcLength); }
+
+inline int8_t
+UnicodeString::compareCodePointOrder(int32_t start,
+                                     int32_t _length,
+                                     const UnicodeString& srcText,
+                                     int32_t srcStart,
+                                     int32_t srcLength) const
+{ return doCompareCodePointOrder(start, _length, srcText, srcStart, srcLength); }
+
+inline int8_t
+UnicodeString::compareCodePointOrder(int32_t start,
+                                     int32_t _length,
+                                     const char16_t *srcChars) const
+{ return doCompareCodePointOrder(start, _length, srcChars, 0, _length); }
+
+inline int8_t
+UnicodeString::compareCodePointOrder(int32_t start,
+                                     int32_t _length,
+                                     const char16_t *srcChars,
+                                     int32_t srcStart,
+                                     int32_t srcLength) const
+{ return doCompareCodePointOrder(start, _length, srcChars, srcStart, srcLength); }
+
+inline int8_t
+UnicodeString::compareCodePointOrderBetween(int32_t start,
+                                            int32_t limit,
+                                            const UnicodeString& srcText,
+                                            int32_t srcStart,
+                                            int32_t srcLimit) const
+{ return doCompareCodePointOrder(start, limit - start,
+           srcText, srcStart, srcLimit - srcStart); }
+
+inline int8_t
+UnicodeString::doCaseCompare(int32_t start,
+                             int32_t thisLength,
+                             const UnicodeString &srcText,
+                             int32_t srcStart,
+                             int32_t srcLength,
+                             uint32_t options) const
+{
+  if(srcText.isBogus()) {
+    return (int8_t)!isBogus(); // 0 if both are bogus, 1 otherwise
+  } else {
+    srcText.pinIndices(srcStart, srcLength);
+    return doCaseCompare(start, thisLength, srcText.getArrayStart(), srcStart, srcLength, options);
+  }
+}
+
+inline int8_t
+UnicodeString::caseCompare(const UnicodeString &text, uint32_t options) const {
+  return doCaseCompare(0, length(), text, 0, text.length(), options);
+}
+
+inline int8_t
+UnicodeString::caseCompare(int32_t start,
+                           int32_t _length,
+                           const UnicodeString &srcText,
+                           uint32_t options) const {
+  return doCaseCompare(start, _length, srcText, 0, srcText.length(), options);
+}
+
+inline int8_t
+UnicodeString::caseCompare(ConstChar16Ptr srcChars,
+                           int32_t srcLength,
+                           uint32_t options) const {
+  return doCaseCompare(0, length(), srcChars, 0, srcLength, options);
+}
+
+inline int8_t
+UnicodeString::caseCompare(int32_t start,
+                           int32_t _length,
+                           const UnicodeString &srcText,
+                           int32_t srcStart,
+                           int32_t srcLength,
+                           uint32_t options) const {
+  return doCaseCompare(start, _length, srcText, srcStart, srcLength, options);
+}
+
+inline int8_t
+UnicodeString::caseCompare(int32_t start,
+                           int32_t _length,
+                           const char16_t *srcChars,
+                           uint32_t options) const {
+  return doCaseCompare(start, _length, srcChars, 0, _length, options);
+}
+
+inline int8_t
+UnicodeString::caseCompare(int32_t start,
+                           int32_t _length,
+                           const char16_t *srcChars,
+                           int32_t srcStart,
+                           int32_t srcLength,
+                           uint32_t options) const {
+  return doCaseCompare(start, _length, srcChars, srcStart, srcLength, options);
+}
+
+inline int8_t
+UnicodeString::caseCompareBetween(int32_t start,
+                                  int32_t limit,
+                                  const UnicodeString &srcText,
+                                  int32_t srcStart,
+                                  int32_t srcLimit,
+                                  uint32_t options) const {
+  return doCaseCompare(start, limit - start, srcText, srcStart, srcLimit - srcStart, options);
+}
+
+inline int32_t
+UnicodeString::indexOf(const UnicodeString& srcText,
+               int32_t srcStart,
+               int32_t srcLength,
+               int32_t start,
+               int32_t _length) const
+{
+  if(!srcText.isBogus()) {
+    srcText.pinIndices(srcStart, srcLength);
+    if(srcLength > 0) {
+      return indexOf(srcText.getArrayStart(), srcStart, srcLength, start, _length);
+    }
+  }
+  return -1;
+}
+
+inline int32_t
+UnicodeString::indexOf(const UnicodeString& text) const
+{ return indexOf(text, 0, text.length(), 0, length()); }
+
+inline int32_t
+UnicodeString::indexOf(const UnicodeString& text,
+               int32_t start) const {
+  pinIndex(start);
+  return indexOf(text, 0, text.length(), start, length() - start);
+}
+
+inline int32_t
+UnicodeString::indexOf(const UnicodeString& text,
+               int32_t start,
+               int32_t _length) const
+{ return indexOf(text, 0, text.length(), start, _length); }
+
+inline int32_t
+UnicodeString::indexOf(const char16_t *srcChars,
+               int32_t srcLength,
+               int32_t start) const {
+  pinIndex(start);
+  return indexOf(srcChars, 0, srcLength, start, length() - start);
+}
+
+inline int32_t
+UnicodeString::indexOf(ConstChar16Ptr srcChars,
+               int32_t srcLength,
+               int32_t start,
+               int32_t _length) const
+{ return indexOf(srcChars, 0, srcLength, start, _length); }
+
+inline int32_t
+UnicodeString::indexOf(char16_t c,
+               int32_t start,
+               int32_t _length) const
+{ return doIndexOf(c, start, _length); }
+
+inline int32_t
+UnicodeString::indexOf(UChar32 c,
+               int32_t start,
+               int32_t _length) const
+{ return doIndexOf(c, start, _length); }
+
+inline int32_t
+UnicodeString::indexOf(char16_t c) const
+{ return doIndexOf(c, 0, length()); }
+
+inline int32_t
+UnicodeString::indexOf(UChar32 c) const
+{ return indexOf(c, 0, length()); }
+
+inline int32_t
+UnicodeString::indexOf(char16_t c,
+               int32_t start) const {
+  pinIndex(start);
+  return doIndexOf(c, start, length() - start);
+}
+
+inline int32_t
+UnicodeString::indexOf(UChar32 c,
+               int32_t start) const {
+  pinIndex(start);
+  return indexOf(c, start, length() - start);
+}
+
+inline int32_t
+UnicodeString::lastIndexOf(ConstChar16Ptr srcChars,
+               int32_t srcLength,
+               int32_t start,
+               int32_t _length) const
+{ return lastIndexOf(srcChars, 0, srcLength, start, _length); }
+
+inline int32_t
+UnicodeString::lastIndexOf(const char16_t *srcChars,
+               int32_t srcLength,
+               int32_t start) const {
+  pinIndex(start);
+  return lastIndexOf(srcChars, 0, srcLength, start, length() - start);
+}
+
+inline int32_t
+UnicodeString::lastIndexOf(const UnicodeString& srcText,
+               int32_t srcStart,
+               int32_t srcLength,
+               int32_t start,
+               int32_t _length) const
+{
+  if(!srcText.isBogus()) {
+    srcText.pinIndices(srcStart, srcLength);
+    if(srcLength > 0) {
+      return lastIndexOf(srcText.getArrayStart(), srcStart, srcLength, start, _length);
+    }
+  }
+  return -1;
+}
+
+inline int32_t
+UnicodeString::lastIndexOf(const UnicodeString& text,
+               int32_t start,
+               int32_t _length) const
+{ return lastIndexOf(text, 0, text.length(), start, _length); }
+
+inline int32_t
+UnicodeString::lastIndexOf(const UnicodeString& text,
+               int32_t start) const {
+  pinIndex(start);
+  return lastIndexOf(text, 0, text.length(), start, length() - start);
+}
+
+inline int32_t
+UnicodeString::lastIndexOf(const UnicodeString& text) const
+{ return lastIndexOf(text, 0, text.length(), 0, length()); }
+
+inline int32_t
+UnicodeString::lastIndexOf(char16_t c,
+               int32_t start,
+               int32_t _length) const
+{ return doLastIndexOf(c, start, _length); }
+
+inline int32_t
+UnicodeString::lastIndexOf(UChar32 c,
+               int32_t start,
+               int32_t _length) const {
+  return doLastIndexOf(c, start, _length);
+}
+
+inline int32_t
+UnicodeString::lastIndexOf(char16_t c) const
+{ return doLastIndexOf(c, 0, length()); }
+
+inline int32_t
+UnicodeString::lastIndexOf(UChar32 c) const {
+  return lastIndexOf(c, 0, length());
+}
+
+inline int32_t
+UnicodeString::lastIndexOf(char16_t c,
+               int32_t start) const {
+  pinIndex(start);
+  return doLastIndexOf(c, start, length() - start);
+}
+
+inline int32_t
+UnicodeString::lastIndexOf(UChar32 c,
+               int32_t start) const {
+  pinIndex(start);
+  return lastIndexOf(c, start, length() - start);
+}
+
+inline UBool
+UnicodeString::startsWith(const UnicodeString& text) const
+{ return compare(0, text.length(), text, 0, text.length()) == 0; }
+
+inline UBool
+UnicodeString::startsWith(const UnicodeString& srcText,
+              int32_t srcStart,
+              int32_t srcLength) const
+{ return doCompare(0, srcLength, srcText, srcStart, srcLength) == 0; }
+
+inline UBool
+UnicodeString::startsWith(ConstChar16Ptr srcChars, int32_t srcLength) const {
+  if(srcLength < 0) {
+    srcLength = u_strlen(toUCharPtr(srcChars));
+  }
+  return doCompare(0, srcLength, srcChars, 0, srcLength) == 0;
+}
+
+inline UBool
+UnicodeString::startsWith(const char16_t *srcChars, int32_t srcStart, int32_t srcLength) const {
+  if(srcLength < 0) {
+    srcLength = u_strlen(toUCharPtr(srcChars));
+  }
+  return doCompare(0, srcLength, srcChars, srcStart, srcLength) == 0;
+}
+
+inline UBool
+UnicodeString::endsWith(const UnicodeString& text) const
+{ return doCompare(length() - text.length(), text.length(),
+           text, 0, text.length()) == 0; }
+
+inline UBool
+UnicodeString::endsWith(const UnicodeString& srcText,
+            int32_t srcStart,
+            int32_t srcLength) const {
+  srcText.pinIndices(srcStart, srcLength);
+  return doCompare(length() - srcLength, srcLength,
+                   srcText, srcStart, srcLength) == 0;
+}
+
+inline UBool
+UnicodeString::endsWith(ConstChar16Ptr srcChars,
+            int32_t srcLength) const {
+  if(srcLength < 0) {
+    srcLength = u_strlen(toUCharPtr(srcChars));
+  }
+  return doCompare(length() - srcLength, srcLength,
+                   srcChars, 0, srcLength) == 0;
+}
+
+inline UBool
+UnicodeString::endsWith(const char16_t *srcChars,
+            int32_t srcStart,
+            int32_t srcLength) const {
+  if(srcLength < 0) {
+    srcLength = u_strlen(toUCharPtr(srcChars + srcStart));
+  }
+  return doCompare(length() - srcLength, srcLength,
+                   srcChars, srcStart, srcLength) == 0;
+}
+
+//========================================
+// replace
+//========================================
+inline UnicodeString&
+UnicodeString::replace(int32_t start,
+               int32_t _length,
+               const UnicodeString& srcText)
+{ return doReplace(start, _length, srcText, 0, srcText.length()); }
+
+inline UnicodeString&
+UnicodeString::replace(int32_t start,
+               int32_t _length,
+               const UnicodeString& srcText,
+               int32_t srcStart,
+               int32_t srcLength)
+{ return doReplace(start, _length, srcText, srcStart, srcLength); }
+
+inline UnicodeString&
+UnicodeString::replace(int32_t start,
+               int32_t _length,
+               ConstChar16Ptr srcChars,
+               int32_t srcLength)
+{ return doReplace(start, _length, srcChars, 0, srcLength); }
+
+inline UnicodeString&
+UnicodeString::replace(int32_t start,
+               int32_t _length,
+               const char16_t *srcChars,
+               int32_t srcStart,
+               int32_t srcLength)
+{ return doReplace(start, _length, srcChars, srcStart, srcLength); }
+
+inline UnicodeString&
+UnicodeString::replace(int32_t start,
+               int32_t _length,
+               char16_t srcChar)
+{ return doReplace(start, _length, &srcChar, 0, 1); }
+
+inline UnicodeString&
+UnicodeString::replaceBetween(int32_t start,
+                  int32_t limit,
+                  const UnicodeString& srcText)
+{ return doReplace(start, limit - start, srcText, 0, srcText.length()); }
+
+inline UnicodeString&
+UnicodeString::replaceBetween(int32_t start,
+                  int32_t limit,
+                  const UnicodeString& srcText,
+                  int32_t srcStart,
+                  int32_t srcLimit)
+{ return doReplace(start, limit - start, srcText, srcStart, srcLimit - srcStart); }
+
+inline UnicodeString&
+UnicodeString::findAndReplace(const UnicodeString& oldText,
+                  const UnicodeString& newText)
+{ return findAndReplace(0, length(), oldText, 0, oldText.length(),
+            newText, 0, newText.length()); }
+
+inline UnicodeString&
+UnicodeString::findAndReplace(int32_t start,
+                  int32_t _length,
+                  const UnicodeString& oldText,
+                  const UnicodeString& newText)
+{ return findAndReplace(start, _length, oldText, 0, oldText.length(),
+            newText, 0, newText.length()); }
+
+// ============================
+// extract
+// ============================
+inline void
+UnicodeString::doExtract(int32_t start,
+             int32_t _length,
+             UnicodeString& target) const
+{ target.replace(0, target.length(), *this, start, _length); }
+
+inline void
+UnicodeString::extract(int32_t start,
+               int32_t _length,
+               Char16Ptr target,
+               int32_t targetStart) const
+{ doExtract(start, _length, target, targetStart); }
+
+inline void
+UnicodeString::extract(int32_t start,
+               int32_t _length,
+               UnicodeString& target) const
+{ doExtract(start, _length, target); }
+
+#if !UCONFIG_NO_CONVERSION
+
+inline int32_t
+UnicodeString::extract(int32_t start,
+               int32_t _length,
+               char *dst,
+               const char *codepage) const
+
+{
+  // This dstSize value will be checked explicitly
+  return extract(start, _length, dst, dst!=0 ? 0xffffffff : 0, codepage);
+}
+
+#endif
+
+inline void
+UnicodeString::extractBetween(int32_t start,
+                  int32_t limit,
+                  char16_t *dst,
+                  int32_t dstStart) const {
+  pinIndex(start);
+  pinIndex(limit);
+  doExtract(start, limit - start, dst, dstStart);
+}
+
+inline UnicodeString
+UnicodeString::tempSubStringBetween(int32_t start, int32_t limit) const {
+    return tempSubString(start, limit - start);
+}
+
+inline char16_t
+UnicodeString::doCharAt(int32_t offset) const
+{
+  if((uint32_t)offset < (uint32_t)length()) {
+    return getArrayStart()[offset];
+  } else {
+    return kInvalidUChar;
+  }
+}
+
+inline char16_t
+UnicodeString::charAt(int32_t offset) const
+{ return doCharAt(offset); }
+
+inline char16_t
+UnicodeString::operator[] (int32_t offset) const
+{ return doCharAt(offset); }
+
+inline UBool
+UnicodeString::isEmpty() const {
+  // Arithmetic or logical right shift does not matter: only testing for 0.
+  return (fUnion.fFields.fLengthAndFlags>>kLengthShift) == 0;
+}
+
+//========================================
+// Write implementation methods
+//========================================
+inline void
+UnicodeString::setZeroLength() {
+  fUnion.fFields.fLengthAndFlags &= kAllStorageFlags;
+}
+
+inline void
+UnicodeString::setShortLength(int32_t len) {
+  // requires 0 <= len <= kMaxShortLength
+  fUnion.fFields.fLengthAndFlags =
+    (int16_t)((fUnion.fFields.fLengthAndFlags & kAllStorageFlags) | (len << kLengthShift));
+}
+
+inline void
+UnicodeString::setLength(int32_t len) {
+  if(len <= kMaxShortLength) {
+    setShortLength(len);
+  } else {
+    fUnion.fFields.fLengthAndFlags |= kLengthIsLarge;
+    fUnion.fFields.fLength = len;
+  }
+}
+
+inline void
+UnicodeString::setToEmpty() {
+  fUnion.fFields.fLengthAndFlags = kShortString;
+}
+
+inline void
+UnicodeString::setArray(char16_t *array, int32_t len, int32_t capacity) {
+  setLength(len);
+  fUnion.fFields.fArray = array;
+  fUnion.fFields.fCapacity = capacity;
+}
+
+inline UnicodeString&
+UnicodeString::operator= (char16_t ch)
+{ return doReplace(0, length(), &ch, 0, 1); }
+
+inline UnicodeString&
+UnicodeString::operator= (UChar32 ch)
+{ return replace(0, length(), ch); }
+
+inline UnicodeString&
+UnicodeString::setTo(const UnicodeString& srcText,
+             int32_t srcStart,
+             int32_t srcLength)
+{
+  unBogus();
+  return doReplace(0, length(), srcText, srcStart, srcLength);
+}
+
+inline UnicodeString&
+UnicodeString::setTo(const UnicodeString& srcText,
+             int32_t srcStart)
+{
+  unBogus();
+  srcText.pinIndex(srcStart);
+  return doReplace(0, length(), srcText, srcStart, srcText.length() - srcStart);
+}
+
+inline UnicodeString&
+UnicodeString::setTo(const UnicodeString& srcText)
+{
+  return copyFrom(srcText);
+}
+
+inline UnicodeString&
+UnicodeString::setTo(const char16_t *srcChars,
+             int32_t srcLength)
+{
+  unBogus();
+  return doReplace(0, length(), srcChars, 0, srcLength);
+}
+
+inline UnicodeString&
+UnicodeString::setTo(char16_t srcChar)
+{
+  unBogus();
+  return doReplace(0, length(), &srcChar, 0, 1);
+}
+
+inline UnicodeString&
+UnicodeString::setTo(UChar32 srcChar)
+{
+  unBogus();
+  return replace(0, length(), srcChar);
+}
+
+inline UnicodeString&
+UnicodeString::append(const UnicodeString& srcText,
+              int32_t srcStart,
+              int32_t srcLength)
+{ return doAppend(srcText, srcStart, srcLength); }
+
+inline UnicodeString&
+UnicodeString::append(const UnicodeString& srcText)
+{ return doAppend(srcText, 0, srcText.length()); }
+
+inline UnicodeString&
+UnicodeString::append(const char16_t *srcChars,
+              int32_t srcStart,
+              int32_t srcLength)
+{ return doAppend(srcChars, srcStart, srcLength); }
+
+inline UnicodeString&
+UnicodeString::append(ConstChar16Ptr srcChars,
+              int32_t srcLength)
+{ return doAppend(srcChars, 0, srcLength); }
+
+inline UnicodeString&
+UnicodeString::append(char16_t srcChar)
+{ return doAppend(&srcChar, 0, 1); }
+
+inline UnicodeString&
+UnicodeString::operator+= (char16_t ch)
+{ return doAppend(&ch, 0, 1); }
+
+inline UnicodeString&
+UnicodeString::operator+= (UChar32 ch) {
+  return append(ch);
+}
+
+inline UnicodeString&
+UnicodeString::operator+= (const UnicodeString& srcText)
+{ return doAppend(srcText, 0, srcText.length()); }
+
+inline UnicodeString&
+UnicodeString::insert(int32_t start,
+              const UnicodeString& srcText,
+              int32_t srcStart,
+              int32_t srcLength)
+{ return doReplace(start, 0, srcText, srcStart, srcLength); }
+
+inline UnicodeString&
+UnicodeString::insert(int32_t start,
+              const UnicodeString& srcText)
+{ return doReplace(start, 0, srcText, 0, srcText.length()); }
+
+inline UnicodeString&
+UnicodeString::insert(int32_t start,
+              const char16_t *srcChars,
+              int32_t srcStart,
+              int32_t srcLength)
+{ return doReplace(start, 0, srcChars, srcStart, srcLength); }
+
+inline UnicodeString&
+UnicodeString::insert(int32_t start,
+              ConstChar16Ptr srcChars,
+              int32_t srcLength)
+{ return doReplace(start, 0, srcChars, 0, srcLength); }
+
+inline UnicodeString&
+UnicodeString::insert(int32_t start,
+              char16_t srcChar)
+{ return doReplace(start, 0, &srcChar, 0, 1); }
+
+inline UnicodeString&
+UnicodeString::insert(int32_t start,
+              UChar32 srcChar)
+{ return replace(start, 0, srcChar); }
+
+
+inline UnicodeString&
+UnicodeString::remove()
+{
+  // remove() of a bogus string makes the string empty and non-bogus
+  if(isBogus()) {
+    setToEmpty();
+  } else {
+    setZeroLength();
+  }
+  return *this;
+}
+
+inline UnicodeString&
+UnicodeString::remove(int32_t start,
+             int32_t _length)
+{
+    if(start <= 0 && _length == INT32_MAX) {
+        // remove(guaranteed everything) of a bogus string makes the string empty and non-bogus
+        return remove();
+    }
+    return doReplace(start, _length, NULL, 0, 0);
+}
+
+inline UnicodeString&
+UnicodeString::removeBetween(int32_t start,
+                int32_t limit)
+{ return doReplace(start, limit - start, NULL, 0, 0); }
+
+inline UnicodeString &
+UnicodeString::retainBetween(int32_t start, int32_t limit) {
+  truncate(limit);
+  return doReplace(0, start, NULL, 0, 0);
+}
+
+inline UBool
+UnicodeString::truncate(int32_t targetLength)
+{
+  if(isBogus() && targetLength == 0) {
+    // truncate(0) of a bogus string makes the string empty and non-bogus
+    unBogus();
+    return FALSE;
+  } else if((uint32_t)targetLength < (uint32_t)length()) {
+    setLength(targetLength);
+    return TRUE;
+  } else {
+    return FALSE;
+  }
+}
+
+inline UnicodeString&
+UnicodeString::reverse()
+{ return doReverse(0, length()); }
+
+inline UnicodeString&
+UnicodeString::reverse(int32_t start,
+               int32_t _length)
+{ return doReverse(start, _length); }
+
+U_NAMESPACE_END
+
+#endif
diff --git a/vendor/icu/include/unicode/uobject.h b/vendor/icu/include/unicode/uobject.h
new file mode 100644
index 0000000000..9026b3b061
--- /dev/null
+++ b/vendor/icu/include/unicode/uobject.h
@@ -0,0 +1,322 @@
+// © 2016 and later: Unicode, Inc. and others.
+// License & terms of use: http://www.unicode.org/copyright.html
+/*
+******************************************************************************
+*
+*   Copyright (C) 2002-2012, International Business Machines
+*   Corporation and others.  All Rights Reserved.
+*
+******************************************************************************
+*   file name:  uobject.h
+*   encoding:   UTF-8
+*   tab size:   8 (not used)
+*   indentation:4
+*
+*   created on: 2002jun26
+*   created by: Markus W. Scherer
+*/
+
+#ifndef __UOBJECT_H__
+#define __UOBJECT_H__
+
+#include <unicode/utypes.h>
+
+/**
+ * \file
+ * \brief C++ API: Common ICU base class UObject.
+ */
+
+/**
+ * @{
+ * \def U_NO_THROW
+ *         Define this to define the throw() specification so
+ *                 certain functions do not throw any exceptions
+ *
+ *         UMemory operator new methods should have the throw() specification 
+ *         appended to them, so that the compiler adds the additional NULL check 
+ *         before calling constructors. Without, if <code>operator new</code> returns NULL the 
+ *         constructor is still called, and if the constructor references member 
+ *         data, (which it typically does), the result is a segmentation violation.
+ *
+ * @stable ICU 4.2
+ */
+#ifndef U_NO_THROW
+#define U_NO_THROW throw()
+#endif
+
+/** @} */
+
+/*===========================================================================*/
+/* UClassID-based RTTI */
+/*===========================================================================*/
+
+/**
+ * UClassID is used to identify classes without using the compiler's RTTI.
+ * This was used before C++ compilers consistently supported RTTI.
+ * ICU 4.6 requires compiler RTTI to be turned on.
+ *
+ * Each class hierarchy which needs
+ * to implement polymorphic clone() or operator==() defines two methods,
+ * described in detail below.  UClassID values can be compared using
+ * operator==(). Nothing else should be done with them.
+ *
+ * \par
+ * In class hierarchies that implement "poor man's RTTI",
+ * each concrete subclass implements getDynamicClassID() in the same way:
+ *
+ * \code
+ *      class Derived {
+ *      public:
+ *          virtual UClassID getDynamicClassID() const
+ *            { return Derived::getStaticClassID(); }
+ *      }
+ * \endcode
+ *
+ * Each concrete class implements getStaticClassID() as well, which allows
+ * clients to test for a specific type.
+ *
+ * \code
+ *      class Derived {
+ *      public:
+ *          static UClassID U_EXPORT2 getStaticClassID();
+ *      private:
+ *          static char fgClassID;
+ *      }
+ *
+ *      // In Derived.cpp:
+ *      UClassID Derived::getStaticClassID()
+ *        { return (UClassID)&Derived::fgClassID; }
+ *      char Derived::fgClassID = 0; // Value is irrelevant
+ * \endcode
+ * @stable ICU 2.0
+ */
+typedef void* UClassID;
+
+U_NAMESPACE_BEGIN
+
+/**
+ * UMemory is the common ICU base class.
+ * All other ICU C++ classes are derived from UMemory (starting with ICU 2.4).
+ *
+ * This is primarily to make it possible and simple to override the
+ * C++ memory management by adding new/delete operators to this base class.
+ *
+ * To override ALL ICU memory management, including that from plain C code,
+ * replace the allocation functions declared in cmemory.h
+ *
+ * UMemory does not contain any virtual functions.
+ * Common "boilerplate" functions are defined in UObject.
+ *
+ * @stable ICU 2.4
+ */
+class U_COMMON_API UMemory {
+public:
+
+/* test versions for debugging shaper heap memory problems */
+#ifdef SHAPER_MEMORY_DEBUG  
+    static void * NewArray(int size, int count);
+    static void * GrowArray(void * array, int newSize );
+    static void   FreeArray(void * array );
+#endif
+
+#if U_OVERRIDE_CXX_ALLOCATION
+    /**
+     * Override for ICU4C C++ memory management.
+     * simple, non-class types are allocated using the macros in common/cmemory.h
+     * (uprv_malloc(), uprv_free(), uprv_realloc());
+     * they or something else could be used here to implement C++ new/delete
+     * for ICU4C C++ classes
+     * @stable ICU 2.4
+     */
+    static void * U_EXPORT2 operator new(size_t size) U_NO_THROW;
+
+    /**
+     * Override for ICU4C C++ memory management.
+     * See new().
+     * @stable ICU 2.4
+     */
+    static void * U_EXPORT2 operator new[](size_t size) U_NO_THROW;
+
+    /**
+     * Override for ICU4C C++ memory management.
+     * simple, non-class types are allocated using the macros in common/cmemory.h
+     * (uprv_malloc(), uprv_free(), uprv_realloc());
+     * they or something else could be used here to implement C++ new/delete
+     * for ICU4C C++ classes
+     * @stable ICU 2.4
+     */
+    static void U_EXPORT2 operator delete(void *p) U_NO_THROW;
+
+    /**
+     * Override for ICU4C C++ memory management.
+     * See delete().
+     * @stable ICU 2.4
+     */
+    static void U_EXPORT2 operator delete[](void *p) U_NO_THROW;
+
+#if U_HAVE_PLACEMENT_NEW
+    /**
+     * Override for ICU4C C++ memory management for STL.
+     * See new().
+     * @stable ICU 2.6
+     */
+    static inline void * U_EXPORT2 operator new(size_t, void *ptr) U_NO_THROW { return ptr; }
+
+    /**
+     * Override for ICU4C C++ memory management for STL.
+     * See delete().
+     * @stable ICU 2.6
+     */
+    static inline void U_EXPORT2 operator delete(void *, void *) U_NO_THROW {}
+#endif /* U_HAVE_PLACEMENT_NEW */
+#if U_HAVE_DEBUG_LOCATION_NEW
+    /**
+      * This method overrides the MFC debug version of the operator new
+      * 
+      * @param size   The requested memory size
+      * @param file   The file where the allocation was requested
+      * @param line   The line where the allocation was requested 
+      */ 
+    static void * U_EXPORT2 operator new(size_t size, const char* file, int line) U_NO_THROW;
+    /**
+      * This method provides a matching delete for the MFC debug new
+      * 
+      * @param p      The pointer to the allocated memory
+      * @param file   The file where the allocation was requested
+      * @param line   The line where the allocation was requested 
+      */ 
+    static void U_EXPORT2 operator delete(void* p, const char* file, int line) U_NO_THROW;
+#endif /* U_HAVE_DEBUG_LOCATION_NEW */
+#endif /* U_OVERRIDE_CXX_ALLOCATION */
+
+    /*
+     * Assignment operator not declared. The compiler will provide one
+     * which does nothing since this class does not contain any data members.
+     * API/code coverage may show the assignment operator as present and
+     * untested - ignore.
+     * Subclasses need this assignment operator if they use compiler-provided
+     * assignment operators of their own. An alternative to not declaring one
+     * here would be to declare and empty-implement a protected or public one.
+    UMemory &UMemory::operator=(const UMemory &);
+     */
+};
+
+/**
+ * UObject is the common ICU "boilerplate" class.
+ * UObject inherits UMemory (starting with ICU 2.4),
+ * and all other public ICU C++ classes
+ * are derived from UObject (starting with ICU 2.2).
+ *
+ * UObject contains common virtual functions, in particular a virtual destructor.
+ *
+ * The clone() function is not available in UObject because it is not
+ * implemented by all ICU classes.
+ * Many ICU services provide a clone() function for their class trees,
+ * defined on the service's C++ base class, and all subclasses within that
+ * service class tree return a pointer to the service base class
+ * (which itself is a subclass of UObject).
+ * This is because some compilers do not support covariant (same-as-this)
+ * return types; cast to the appropriate subclass if necessary.
+ *
+ * @stable ICU 2.2
+ */
+class U_COMMON_API UObject : public UMemory {
+public:
+    /**
+     * Destructor.
+     *
+     * @stable ICU 2.2
+     */
+    virtual ~UObject();
+
+    /**
+     * ICU4C "poor man's RTTI", returns a UClassID for the actual ICU class.
+     * The base class implementation returns a dummy value.
+     *
+     * Use compiler RTTI rather than ICU's "poor man's RTTI".
+     * Since ICU 4.6, new ICU C++ class hierarchies do not implement "poor man's RTTI".
+     *
+     * @stable ICU 2.2
+     */
+    virtual UClassID getDynamicClassID() const;
+
+protected:
+    // the following functions are protected to prevent instantiation and
+    // direct use of UObject itself
+
+    // default constructor
+    // inline UObject() {}
+
+    // copy constructor
+    // inline UObject(const UObject &other) {}
+
+#if 0
+    // TODO Sometime in the future. Implement operator==().
+    // (This comment inserted in 2.2)
+    // some or all of the following "boilerplate" functions may be made public
+    // in a future ICU4C release when all subclasses implement them
+
+    // assignment operator
+    // (not virtual, see "Taligent's Guide to Designing Programs" pp.73..74)
+    // commented out because the implementation is the same as a compiler's default
+    // UObject &operator=(const UObject &other) { return *this; }
+
+    // comparison operators
+    virtual inline UBool operator==(const UObject &other) const { return this==&other; }
+    inline UBool operator!=(const UObject &other) const { return !operator==(other); }
+
+    // clone() commented out from the base class:
+    // some compilers do not support co-variant return types
+    // (i.e., subclasses would have to return UObject * as well, instead of SubClass *)
+    // see also UObject class documentation.
+    // virtual UObject *clone() const;
+#endif
+
+    /*
+     * Assignment operator not declared. The compiler will provide one
+     * which does nothing since this class does not contain any data members.
+     * API/code coverage may show the assignment operator as present and
+     * untested - ignore.
+     * Subclasses need this assignment operator if they use compiler-provided
+     * assignment operators of their own. An alternative to not declaring one
+     * here would be to declare and empty-implement a protected or public one.
+    UObject &UObject::operator=(const UObject &);
+     */
+};
+
+#ifndef U_HIDE_INTERNAL_API
+/**
+ * This is a simple macro to add ICU RTTI to an ICU object implementation.
+ * This does not go into the header. This should only be used in *.cpp files.
+ *
+ * @param myClass The name of the class that needs RTTI defined.
+ * @internal
+ */
+#define UOBJECT_DEFINE_RTTI_IMPLEMENTATION(myClass) \
+    UClassID U_EXPORT2 myClass::getStaticClassID() { \
+        static char classID = 0; \
+        return (UClassID)&classID; \
+    } \
+    UClassID myClass::getDynamicClassID() const \
+    { return myClass::getStaticClassID(); }
+
+
+/**
+ * This macro adds ICU RTTI to an ICU abstract class implementation.
+ * This macro should be invoked in *.cpp files.  The corresponding
+ * header should declare getStaticClassID.
+ *
+ * @param myClass The name of the class that needs RTTI defined.
+ * @internal
+ */
+#define UOBJECT_DEFINE_ABSTRACT_RTTI_IMPLEMENTATION(myClass) \
+    UClassID U_EXPORT2 myClass::getStaticClassID() { \
+        static char classID = 0; \
+        return (UClassID)&classID; \
+    }
+
+#endif  /* U_HIDE_INTERNAL_API */
+
+U_NAMESPACE_END
+
+#endif
diff --git a/vendor/icu/include/unicode/urename.h b/vendor/icu/include/unicode/urename.h
new file mode 100644
index 0000000000..5d6e4b077b
--- /dev/null
+++ b/vendor/icu/include/unicode/urename.h
@@ -0,0 +1,1819 @@
+// © 2016 and later: Unicode, Inc. and others.
+// License & terms of use: http://www.unicode.org/copyright.html
+/*
+*******************************************************************************
+*   Copyright (C) 2002-2016, International Business Machines
+*   Corporation and others.  All Rights Reserved.
+*******************************************************************************
+*
+*   file name:  urename.h
+*   encoding:   UTF-8
+*   tab size:   8 (not used)
+*   indentation:4
+*
+*   Created by: Perl script tools/genren.pl written by Vladimir Weinstein
+*
+*  Contains data for renaming ICU exports.
+*  Gets included by umachine.h
+*
+*  THIS FILE IS MACHINE-GENERATED, DON'T PLAY WITH IT IF YOU DON'T KNOW WHAT
+*  YOU ARE DOING, OTHERWISE VERY BAD THINGS WILL HAPPEN!
+*/
+
+#ifndef URENAME_H
+#define URENAME_H
+
+/* U_DISABLE_RENAMING can be defined in the following ways:
+ *   - when running configure, e.g.
+ *        runConfigureICU Linux --disable-renaming
+ *   - by changing the default setting of U_DISABLE_RENAMING in uconfig.h
+ */
+
+#include <unicode/uconfig.h>
+
+#if !U_DISABLE_RENAMING
+
+/* We need the U_ICU_ENTRY_POINT_RENAME definition. There's a default one in unicode/uvernum.h we can use, but we will give
+   the platform a chance to define it first.
+   Normally (if utypes.h or umachine.h was included first) this will not be necessary as it will already be defined.
+ */
+
+#ifndef U_ICU_ENTRY_POINT_RENAME
+#include <unicode/umachine.h>
+#endif
+
+/* If we still don't have U_ICU_ENTRY_POINT_RENAME use the default. */
+#ifndef U_ICU_ENTRY_POINT_RENAME
+#include <unicode/uvernum.h>
+#endif
+
+/* Error out before the following defines cause very strange and unexpected code breakage */
+#ifndef U_ICU_ENTRY_POINT_RENAME
+#error U_ICU_ENTRY_POINT_RENAME is not defined - cannot continue. Consider defining U_DISABLE_RENAMING if renaming should not be used.
+#endif
+
+
+/* C exports renaming data */
+
+#define T_CString_int64ToString U_ICU_ENTRY_POINT_RENAME(T_CString_int64ToString)
+#define T_CString_integerToString U_ICU_ENTRY_POINT_RENAME(T_CString_integerToString)
+#define T_CString_stringToInteger U_ICU_ENTRY_POINT_RENAME(T_CString_stringToInteger)
+#define T_CString_toLowerCase U_ICU_ENTRY_POINT_RENAME(T_CString_toLowerCase)
+#define T_CString_toUpperCase U_ICU_ENTRY_POINT_RENAME(T_CString_toUpperCase)
+#define UCNV_FROM_U_CALLBACK_ESCAPE U_ICU_ENTRY_POINT_RENAME(UCNV_FROM_U_CALLBACK_ESCAPE)
+#define UCNV_FROM_U_CALLBACK_SKIP U_ICU_ENTRY_POINT_RENAME(UCNV_FROM_U_CALLBACK_SKIP)
+#define UCNV_FROM_U_CALLBACK_STOP U_ICU_ENTRY_POINT_RENAME(UCNV_FROM_U_CALLBACK_STOP)
+#define UCNV_FROM_U_CALLBACK_SUBSTITUTE U_ICU_ENTRY_POINT_RENAME(UCNV_FROM_U_CALLBACK_SUBSTITUTE)
+#define UCNV_TO_U_CALLBACK_ESCAPE U_ICU_ENTRY_POINT_RENAME(UCNV_TO_U_CALLBACK_ESCAPE)
+#define UCNV_TO_U_CALLBACK_SKIP U_ICU_ENTRY_POINT_RENAME(UCNV_TO_U_CALLBACK_SKIP)
+#define UCNV_TO_U_CALLBACK_STOP U_ICU_ENTRY_POINT_RENAME(UCNV_TO_U_CALLBACK_STOP)
+#define UCNV_TO_U_CALLBACK_SUBSTITUTE U_ICU_ENTRY_POINT_RENAME(UCNV_TO_U_CALLBACK_SUBSTITUTE)
+#define UDataMemory_createNewInstance U_ICU_ENTRY_POINT_RENAME(UDataMemory_createNewInstance)
+#define UDataMemory_init U_ICU_ENTRY_POINT_RENAME(UDataMemory_init)
+#define UDataMemory_isLoaded U_ICU_ENTRY_POINT_RENAME(UDataMemory_isLoaded)
+#define UDataMemory_normalizeDataPointer U_ICU_ENTRY_POINT_RENAME(UDataMemory_normalizeDataPointer)
+#define UDataMemory_setData U_ICU_ENTRY_POINT_RENAME(UDataMemory_setData)
+#define UDatamemory_assign U_ICU_ENTRY_POINT_RENAME(UDatamemory_assign)
+#define _ASCIIData U_ICU_ENTRY_POINT_RENAME(_ASCIIData)
+#define _Bocu1Data U_ICU_ENTRY_POINT_RENAME(_Bocu1Data)
+#define _CESU8Data U_ICU_ENTRY_POINT_RENAME(_CESU8Data)
+#define _CompoundTextData U_ICU_ENTRY_POINT_RENAME(_CompoundTextData)
+#define _HZData U_ICU_ENTRY_POINT_RENAME(_HZData)
+#define _IMAPData U_ICU_ENTRY_POINT_RENAME(_IMAPData)
+#define _ISCIIData U_ICU_ENTRY_POINT_RENAME(_ISCIIData)
+#define _ISO2022Data U_ICU_ENTRY_POINT_RENAME(_ISO2022Data)
+#define _LMBCSData1 U_ICU_ENTRY_POINT_RENAME(_LMBCSData1)
+#define _LMBCSData11 U_ICU_ENTRY_POINT_RENAME(_LMBCSData11)
+#define _LMBCSData16 U_ICU_ENTRY_POINT_RENAME(_LMBCSData16)
+#define _LMBCSData17 U_ICU_ENTRY_POINT_RENAME(_LMBCSData17)
+#define _LMBCSData18 U_ICU_ENTRY_POINT_RENAME(_LMBCSData18)
+#define _LMBCSData19 U_ICU_ENTRY_POINT_RENAME(_LMBCSData19)
+#define _LMBCSData2 U_ICU_ENTRY_POINT_RENAME(_LMBCSData2)
+#define _LMBCSData3 U_ICU_ENTRY_POINT_RENAME(_LMBCSData3)
+#define _LMBCSData4 U_ICU_ENTRY_POINT_RENAME(_LMBCSData4)
+#define _LMBCSData5 U_ICU_ENTRY_POINT_RENAME(_LMBCSData5)
+#define _LMBCSData6 U_ICU_ENTRY_POINT_RENAME(_LMBCSData6)
+#define _LMBCSData8 U_ICU_ENTRY_POINT_RENAME(_LMBCSData8)
+#define _Latin1Data U_ICU_ENTRY_POINT_RENAME(_Latin1Data)
+#define _MBCSData U_ICU_ENTRY_POINT_RENAME(_MBCSData)
+#define _SCSUData U_ICU_ENTRY_POINT_RENAME(_SCSUData)
+#define _UTF16BEData U_ICU_ENTRY_POINT_RENAME(_UTF16BEData)
+#define _UTF16Data U_ICU_ENTRY_POINT_RENAME(_UTF16Data)
+#define _UTF16LEData U_ICU_ENTRY_POINT_RENAME(_UTF16LEData)
+#define _UTF16v2Data U_ICU_ENTRY_POINT_RENAME(_UTF16v2Data)
+#define _UTF32BEData U_ICU_ENTRY_POINT_RENAME(_UTF32BEData)
+#define _UTF32Data U_ICU_ENTRY_POINT_RENAME(_UTF32Data)
+#define _UTF32LEData U_ICU_ENTRY_POINT_RENAME(_UTF32LEData)
+#define _UTF7Data U_ICU_ENTRY_POINT_RENAME(_UTF7Data)
+#define _UTF8Data U_ICU_ENTRY_POINT_RENAME(_UTF8Data)
+#define allowedHourFormatsCleanup U_ICU_ENTRY_POINT_RENAME(allowedHourFormatsCleanup)
+#define cmemory_cleanup U_ICU_ENTRY_POINT_RENAME(cmemory_cleanup)
+#define dayPeriodRulesCleanup U_ICU_ENTRY_POINT_RENAME(dayPeriodRulesCleanup)
+#define deleteAllowedHourFormats U_ICU_ENTRY_POINT_RENAME(deleteAllowedHourFormats)
+#define gTimeZoneFilesInitOnce U_ICU_ENTRY_POINT_RENAME(gTimeZoneFilesInitOnce)
+#define izrule_clone U_ICU_ENTRY_POINT_RENAME(izrule_clone)
+#define izrule_close U_ICU_ENTRY_POINT_RENAME(izrule_close)
+#define izrule_equals U_ICU_ENTRY_POINT_RENAME(izrule_equals)
+#define izrule_getDSTSavings U_ICU_ENTRY_POINT_RENAME(izrule_getDSTSavings)
+#define izrule_getDynamicClassID U_ICU_ENTRY_POINT_RENAME(izrule_getDynamicClassID)
+#define izrule_getFinalStart U_ICU_ENTRY_POINT_RENAME(izrule_getFinalStart)
+#define izrule_getFirstStart U_ICU_ENTRY_POINT_RENAME(izrule_getFirstStart)
+#define izrule_getName U_ICU_ENTRY_POINT_RENAME(izrule_getName)
+#define izrule_getNextStart U_ICU_ENTRY_POINT_RENAME(izrule_getNextStart)
+#define izrule_getPreviousStart U_ICU_ENTRY_POINT_RENAME(izrule_getPreviousStart)
+#define izrule_getRawOffset U_ICU_ENTRY_POINT_RENAME(izrule_getRawOffset)
+#define izrule_getStaticClassID U_ICU_ENTRY_POINT_RENAME(izrule_getStaticClassID)
+#define izrule_isEquivalentTo U_ICU_ENTRY_POINT_RENAME(izrule_isEquivalentTo)
+#define izrule_open U_ICU_ENTRY_POINT_RENAME(izrule_open)
+#define locale_getKeywords U_ICU_ENTRY_POINT_RENAME(locale_getKeywords)
+#define locale_getKeywordsStart U_ICU_ENTRY_POINT_RENAME(locale_getKeywordsStart)
+#define locale_get_default U_ICU_ENTRY_POINT_RENAME(locale_get_default)
+#define locale_set_default U_ICU_ENTRY_POINT_RENAME(locale_set_default)
+#define pl_addFontRun U_ICU_ENTRY_POINT_RENAME(pl_addFontRun)
+#define pl_addLocaleRun U_ICU_ENTRY_POINT_RENAME(pl_addLocaleRun)
+#define pl_addValueRun U_ICU_ENTRY_POINT_RENAME(pl_addValueRun)
+#define pl_close U_ICU_ENTRY_POINT_RENAME(pl_close)
+#define pl_closeFontRuns U_ICU_ENTRY_POINT_RENAME(pl_closeFontRuns)
+#define pl_closeLine U_ICU_ENTRY_POINT_RENAME(pl_closeLine)
+#define pl_closeLocaleRuns U_ICU_ENTRY_POINT_RENAME(pl_closeLocaleRuns)
+#define pl_closeValueRuns U_ICU_ENTRY_POINT_RENAME(pl_closeValueRuns)
+#define pl_countLineRuns U_ICU_ENTRY_POINT_RENAME(pl_countLineRuns)
+#define pl_create U_ICU_ENTRY_POINT_RENAME(pl_create)
+#define pl_getAscent U_ICU_ENTRY_POINT_RENAME(pl_getAscent)
+#define pl_getDescent U_ICU_ENTRY_POINT_RENAME(pl_getDescent)
+#define pl_getFontRunCount U_ICU_ENTRY_POINT_RENAME(pl_getFontRunCount)
+#define pl_getFontRunFont U_ICU_ENTRY_POINT_RENAME(pl_getFontRunFont)
+#define pl_getFontRunLastLimit U_ICU_ENTRY_POINT_RENAME(pl_getFontRunLastLimit)
+#define pl_getFontRunLimit U_ICU_ENTRY_POINT_RENAME(pl_getFontRunLimit)
+#define pl_getLeading U_ICU_ENTRY_POINT_RENAME(pl_getLeading)
+#define pl_getLineAscent U_ICU_ENTRY_POINT_RENAME(pl_getLineAscent)
+#define pl_getLineDescent U_ICU_ENTRY_POINT_RENAME(pl_getLineDescent)
+#define pl_getLineLeading U_ICU_ENTRY_POINT_RENAME(pl_getLineLeading)
+#define pl_getLineVisualRun U_ICU_ENTRY_POINT_RENAME(pl_getLineVisualRun)
+#define pl_getLineWidth U_ICU_ENTRY_POINT_RENAME(pl_getLineWidth)
+#define pl_getLocaleRunCount U_ICU_ENTRY_POINT_RENAME(pl_getLocaleRunCount)
+#define pl_getLocaleRunLastLimit U_ICU_ENTRY_POINT_RENAME(pl_getLocaleRunLastLimit)
+#define pl_getLocaleRunLimit U_ICU_ENTRY_POINT_RENAME(pl_getLocaleRunLimit)
+#define pl_getLocaleRunLocale U_ICU_ENTRY_POINT_RENAME(pl_getLocaleRunLocale)
+#define pl_getParagraphLevel U_ICU_ENTRY_POINT_RENAME(pl_getParagraphLevel)
+#define pl_getTextDirection U_ICU_ENTRY_POINT_RENAME(pl_getTextDirection)
+#define pl_getValueRunCount U_ICU_ENTRY_POINT_RENAME(pl_getValueRunCount)
+#define pl_getValueRunLastLimit U_ICU_ENTRY_POINT_RENAME(pl_getValueRunLastLimit)
+#define pl_getValueRunLimit U_ICU_ENTRY_POINT_RENAME(pl_getValueRunLimit)
+#define pl_getValueRunValue U_ICU_ENTRY_POINT_RENAME(pl_getValueRunValue)
+#define pl_getVisualRunAscent U_ICU_ENTRY_POINT_RENAME(pl_getVisualRunAscent)
+#define pl_getVisualRunDescent U_ICU_ENTRY_POINT_RENAME(pl_getVisualRunDescent)
+#define pl_getVisualRunDirection U_ICU_ENTRY_POINT_RENAME(pl_getVisualRunDirection)
+#define pl_getVisualRunFont U_ICU_ENTRY_POINT_RENAME(pl_getVisualRunFont)
+#define pl_getVisualRunGlyphCount U_ICU_ENTRY_POINT_RENAME(pl_getVisualRunGlyphCount)
+#define pl_getVisualRunGlyphToCharMap U_ICU_ENTRY_POINT_RENAME(pl_getVisualRunGlyphToCharMap)
+#define pl_getVisualRunGlyphs U_ICU_ENTRY_POINT_RENAME(pl_getVisualRunGlyphs)
+#define pl_getVisualRunLeading U_ICU_ENTRY_POINT_RENAME(pl_getVisualRunLeading)
+#define pl_getVisualRunPositions U_ICU_ENTRY_POINT_RENAME(pl_getVisualRunPositions)
+#define pl_isComplex U_ICU_ENTRY_POINT_RENAME(pl_isComplex)
+#define pl_nextLine U_ICU_ENTRY_POINT_RENAME(pl_nextLine)
+#define pl_openEmptyFontRuns U_ICU_ENTRY_POINT_RENAME(pl_openEmptyFontRuns)
+#define pl_openEmptyLocaleRuns U_ICU_ENTRY_POINT_RENAME(pl_openEmptyLocaleRuns)
+#define pl_openEmptyValueRuns U_ICU_ENTRY_POINT_RENAME(pl_openEmptyValueRuns)
+#define pl_openFontRuns U_ICU_ENTRY_POINT_RENAME(pl_openFontRuns)
+#define pl_openLocaleRuns U_ICU_ENTRY_POINT_RENAME(pl_openLocaleRuns)
+#define pl_openValueRuns U_ICU_ENTRY_POINT_RENAME(pl_openValueRuns)
+#define pl_reflow U_ICU_ENTRY_POINT_RENAME(pl_reflow)
+#define pl_resetFontRuns U_ICU_ENTRY_POINT_RENAME(pl_resetFontRuns)
+#define pl_resetLocaleRuns U_ICU_ENTRY_POINT_RENAME(pl_resetLocaleRuns)
+#define pl_resetValueRuns U_ICU_ENTRY_POINT_RENAME(pl_resetValueRuns)
+#define res_countArrayItems U_ICU_ENTRY_POINT_RENAME(res_countArrayItems)
+#define res_findResource U_ICU_ENTRY_POINT_RENAME(res_findResource)
+#define res_getAlias U_ICU_ENTRY_POINT_RENAME(res_getAlias)
+#define res_getArrayItem U_ICU_ENTRY_POINT_RENAME(res_getArrayItem)
+#define res_getBinary U_ICU_ENTRY_POINT_RENAME(res_getBinary)
+#define res_getIntVector U_ICU_ENTRY_POINT_RENAME(res_getIntVector)
+#define res_getPublicType U_ICU_ENTRY_POINT_RENAME(res_getPublicType)
+#define res_getResource U_ICU_ENTRY_POINT_RENAME(res_getResource)
+#define res_getString U_ICU_ENTRY_POINT_RENAME(res_getString)
+#define res_getTableItemByIndex U_ICU_ENTRY_POINT_RENAME(res_getTableItemByIndex)
+#define res_getTableItemByKey U_ICU_ENTRY_POINT_RENAME(res_getTableItemByKey)
+#define res_load U_ICU_ENTRY_POINT_RENAME(res_load)
+#define res_read U_ICU_ENTRY_POINT_RENAME(res_read)
+#define res_unload U_ICU_ENTRY_POINT_RENAME(res_unload)
+#define u_UCharsToChars U_ICU_ENTRY_POINT_RENAME(u_UCharsToChars)
+#define u_austrcpy U_ICU_ENTRY_POINT_RENAME(u_austrcpy)
+#define u_austrncpy U_ICU_ENTRY_POINT_RENAME(u_austrncpy)
+#define u_caseInsensitivePrefixMatch U_ICU_ENTRY_POINT_RENAME(u_caseInsensitivePrefixMatch)
+#define u_catclose U_ICU_ENTRY_POINT_RENAME(u_catclose)
+#define u_catgets U_ICU_ENTRY_POINT_RENAME(u_catgets)
+#define u_catopen U_ICU_ENTRY_POINT_RENAME(u_catopen)
+#define u_charAge U_ICU_ENTRY_POINT_RENAME(u_charAge)
+#define u_charDigitValue U_ICU_ENTRY_POINT_RENAME(u_charDigitValue)
+#define u_charDirection U_ICU_ENTRY_POINT_RENAME(u_charDirection)
+#define u_charFromName U_ICU_ENTRY_POINT_RENAME(u_charFromName)
+#define u_charMirror U_ICU_ENTRY_POINT_RENAME(u_charMirror)
+#define u_charName U_ICU_ENTRY_POINT_RENAME(u_charName)
+#define u_charType U_ICU_ENTRY_POINT_RENAME(u_charType)
+#define u_charsToUChars U_ICU_ENTRY_POINT_RENAME(u_charsToUChars)
+#define u_cleanup U_ICU_ENTRY_POINT_RENAME(u_cleanup)
+#define u_countChar32 U_ICU_ENTRY_POINT_RENAME(u_countChar32)
+#define u_digit U_ICU_ENTRY_POINT_RENAME(u_digit)
+#define u_enumCharNames U_ICU_ENTRY_POINT_RENAME(u_enumCharNames)
+#define u_enumCharTypes U_ICU_ENTRY_POINT_RENAME(u_enumCharTypes)
+#define u_errorName U_ICU_ENTRY_POINT_RENAME(u_errorName)
+#define u_fadopt U_ICU_ENTRY_POINT_RENAME(u_fadopt)
+#define u_fclose U_ICU_ENTRY_POINT_RENAME(u_fclose)
+#define u_feof U_ICU_ENTRY_POINT_RENAME(u_feof)
+#define u_fflush U_ICU_ENTRY_POINT_RENAME(u_fflush)
+#define u_fgetConverter U_ICU_ENTRY_POINT_RENAME(u_fgetConverter)
+#define u_fgetNumberFormat U_ICU_ENTRY_POINT_RENAME(u_fgetNumberFormat)
+#define u_fgetc U_ICU_ENTRY_POINT_RENAME(u_fgetc)
+#define u_fgetcodepage U_ICU_ENTRY_POINT_RENAME(u_fgetcodepage)
+#define u_fgetcx U_ICU_ENTRY_POINT_RENAME(u_fgetcx)
+#define u_fgetfile U_ICU_ENTRY_POINT_RENAME(u_fgetfile)
+#define u_fgetlocale U_ICU_ENTRY_POINT_RENAME(u_fgetlocale)
+#define u_fgets U_ICU_ENTRY_POINT_RENAME(u_fgets)
+#define u_file_read U_ICU_ENTRY_POINT_RENAME(u_file_read)
+#define u_file_write U_ICU_ENTRY_POINT_RENAME(u_file_write)
+#define u_file_write_flush U_ICU_ENTRY_POINT_RENAME(u_file_write_flush)
+#define u_finit U_ICU_ENTRY_POINT_RENAME(u_finit)
+#define u_flushDefaultConverter U_ICU_ENTRY_POINT_RENAME(u_flushDefaultConverter)
+#define u_foldCase U_ICU_ENTRY_POINT_RENAME(u_foldCase)
+#define u_fopen U_ICU_ENTRY_POINT_RENAME(u_fopen)
+#define u_fopen_u U_ICU_ENTRY_POINT_RENAME(u_fopen_u)
+#define u_forDigit U_ICU_ENTRY_POINT_RENAME(u_forDigit)
+#define u_formatMessage U_ICU_ENTRY_POINT_RENAME(u_formatMessage)
+#define u_formatMessageWithError U_ICU_ENTRY_POINT_RENAME(u_formatMessageWithError)
+#define u_fprintf U_ICU_ENTRY_POINT_RENAME(u_fprintf)
+#define u_fprintf_u U_ICU_ENTRY_POINT_RENAME(u_fprintf_u)
+#define u_fputc U_ICU_ENTRY_POINT_RENAME(u_fputc)
+#define u_fputs U_ICU_ENTRY_POINT_RENAME(u_fputs)
+#define u_frewind U_ICU_ENTRY_POINT_RENAME(u_frewind)
+#define u_fscanf U_ICU_ENTRY_POINT_RENAME(u_fscanf)
+#define u_fscanf_u U_ICU_ENTRY_POINT_RENAME(u_fscanf_u)
+#define u_fsetcodepage U_ICU_ENTRY_POINT_RENAME(u_fsetcodepage)
+#define u_fsetlocale U_ICU_ENTRY_POINT_RENAME(u_fsetlocale)
+#define u_fsettransliterator U_ICU_ENTRY_POINT_RENAME(u_fsettransliterator)
+#define u_fstropen U_ICU_ENTRY_POINT_RENAME(u_fstropen)
+#define u_fungetc U_ICU_ENTRY_POINT_RENAME(u_fungetc)
+#define u_getBidiPairedBracket U_ICU_ENTRY_POINT_RENAME(u_getBidiPairedBracket)
+#define u_getCombiningClass U_ICU_ENTRY_POINT_RENAME(u_getCombiningClass)
+#define u_getDataDirectory U_ICU_ENTRY_POINT_RENAME(u_getDataDirectory)
+#define u_getDataVersion U_ICU_ENTRY_POINT_RENAME(u_getDataVersion)
+#define u_getDefaultConverter U_ICU_ENTRY_POINT_RENAME(u_getDefaultConverter)
+#define u_getFC_NFKC_Closure U_ICU_ENTRY_POINT_RENAME(u_getFC_NFKC_Closure)
+#define u_getISOComment U_ICU_ENTRY_POINT_RENAME(u_getISOComment)
+#define u_getIntPropertyMaxValue U_ICU_ENTRY_POINT_RENAME(u_getIntPropertyMaxValue)
+#define u_getIntPropertyMinValue U_ICU_ENTRY_POINT_RENAME(u_getIntPropertyMinValue)
+#define u_getIntPropertyValue U_ICU_ENTRY_POINT_RENAME(u_getIntPropertyValue)
+#define u_getMainProperties U_ICU_ENTRY_POINT_RENAME(u_getMainProperties)
+#define u_getNumericValue U_ICU_ENTRY_POINT_RENAME(u_getNumericValue)
+#define u_getPropertyEnum U_ICU_ENTRY_POINT_RENAME(u_getPropertyEnum)
+#define u_getPropertyName U_ICU_ENTRY_POINT_RENAME(u_getPropertyName)
+#define u_getPropertyValueEnum U_ICU_ENTRY_POINT_RENAME(u_getPropertyValueEnum)
+#define u_getPropertyValueName U_ICU_ENTRY_POINT_RENAME(u_getPropertyValueName)
+#define u_getTimeZoneFilesDirectory U_ICU_ENTRY_POINT_RENAME(u_getTimeZoneFilesDirectory)
+#define u_getUnicodeProperties U_ICU_ENTRY_POINT_RENAME(u_getUnicodeProperties)
+#define u_getUnicodeVersion U_ICU_ENTRY_POINT_RENAME(u_getUnicodeVersion)
+#define u_getVersion U_ICU_ENTRY_POINT_RENAME(u_getVersion)
+#define u_get_stdout U_ICU_ENTRY_POINT_RENAME(u_get_stdout)
+#define u_hasBinaryProperty U_ICU_ENTRY_POINT_RENAME(u_hasBinaryProperty)
+#define u_init U_ICU_ENTRY_POINT_RENAME(u_init)
+#define u_isIDIgnorable U_ICU_ENTRY_POINT_RENAME(u_isIDIgnorable)
+#define u_isIDPart U_ICU_ENTRY_POINT_RENAME(u_isIDPart)
+#define u_isIDStart U_ICU_ENTRY_POINT_RENAME(u_isIDStart)
+#define u_isISOControl U_ICU_ENTRY_POINT_RENAME(u_isISOControl)
+#define u_isJavaIDPart U_ICU_ENTRY_POINT_RENAME(u_isJavaIDPart)
+#define u_isJavaIDStart U_ICU_ENTRY_POINT_RENAME(u_isJavaIDStart)
+#define u_isJavaSpaceChar U_ICU_ENTRY_POINT_RENAME(u_isJavaSpaceChar)
+#define u_isMirrored U_ICU_ENTRY_POINT_RENAME(u_isMirrored)
+#define u_isUAlphabetic U_ICU_ENTRY_POINT_RENAME(u_isUAlphabetic)
+#define u_isULowercase U_ICU_ENTRY_POINT_RENAME(u_isULowercase)
+#define u_isUUppercase U_ICU_ENTRY_POINT_RENAME(u_isUUppercase)
+#define u_isUWhiteSpace U_ICU_ENTRY_POINT_RENAME(u_isUWhiteSpace)
+#define u_isWhitespace U_ICU_ENTRY_POINT_RENAME(u_isWhitespace)
+#define u_isalnum U_ICU_ENTRY_POINT_RENAME(u_isalnum)
+#define u_isalnumPOSIX U_ICU_ENTRY_POINT_RENAME(u_isalnumPOSIX)
+#define u_isalpha U_ICU_ENTRY_POINT_RENAME(u_isalpha)
+#define u_isbase U_ICU_ENTRY_POINT_RENAME(u_isbase)
+#define u_isblank U_ICU_ENTRY_POINT_RENAME(u_isblank)
+#define u_iscntrl U_ICU_ENTRY_POINT_RENAME(u_iscntrl)
+#define u_isdefined U_ICU_ENTRY_POINT_RENAME(u_isdefined)
+#define u_isdigit U_ICU_ENTRY_POINT_RENAME(u_isdigit)
+#define u_isgraph U_ICU_ENTRY_POINT_RENAME(u_isgraph)
+#define u_isgraphPOSIX U_ICU_ENTRY_POINT_RENAME(u_isgraphPOSIX)
+#define u_islower U_ICU_ENTRY_POINT_RENAME(u_islower)
+#define u_isprint U_ICU_ENTRY_POINT_RENAME(u_isprint)
+#define u_isprintPOSIX U_ICU_ENTRY_POINT_RENAME(u_isprintPOSIX)
+#define u_ispunct U_ICU_ENTRY_POINT_RENAME(u_ispunct)
+#define u_isspace U_ICU_ENTRY_POINT_RENAME(u_isspace)
+#define u_istitle U_ICU_ENTRY_POINT_RENAME(u_istitle)
+#define u_isupper U_ICU_ENTRY_POINT_RENAME(u_isupper)
+#define u_isxdigit U_ICU_ENTRY_POINT_RENAME(u_isxdigit)
+#define u_locbund_close U_ICU_ENTRY_POINT_RENAME(u_locbund_close)
+#define u_locbund_getNumberFormat U_ICU_ENTRY_POINT_RENAME(u_locbund_getNumberFormat)
+#define u_locbund_init U_ICU_ENTRY_POINT_RENAME(u_locbund_init)
+#define u_memcasecmp U_ICU_ENTRY_POINT_RENAME(u_memcasecmp)
+#define u_memchr U_ICU_ENTRY_POINT_RENAME(u_memchr)
+#define u_memchr32 U_ICU_ENTRY_POINT_RENAME(u_memchr32)
+#define u_memcmp U_ICU_ENTRY_POINT_RENAME(u_memcmp)
+#define u_memcmpCodePointOrder U_ICU_ENTRY_POINT_RENAME(u_memcmpCodePointOrder)
+#define u_memcpy U_ICU_ENTRY_POINT_RENAME(u_memcpy)
+#define u_memmove U_ICU_ENTRY_POINT_RENAME(u_memmove)
+#define u_memrchr U_ICU_ENTRY_POINT_RENAME(u_memrchr)
+#define u_memrchr32 U_ICU_ENTRY_POINT_RENAME(u_memrchr32)
+#define u_memset U_ICU_ENTRY_POINT_RENAME(u_memset)
+#define u_parseMessage U_ICU_ENTRY_POINT_RENAME(u_parseMessage)
+#define u_parseMessageWithError U_ICU_ENTRY_POINT_RENAME(u_parseMessageWithError)
+#define u_printf U_ICU_ENTRY_POINT_RENAME(u_printf)
+#define u_printf_parse U_ICU_ENTRY_POINT_RENAME(u_printf_parse)
+#define u_printf_u U_ICU_ENTRY_POINT_RENAME(u_printf_u)
+#define u_releaseDefaultConverter U_ICU_ENTRY_POINT_RENAME(u_releaseDefaultConverter)
+#define u_scanf_parse U_ICU_ENTRY_POINT_RENAME(u_scanf_parse)
+#define u_setAtomicIncDecFunctions U_ICU_ENTRY_POINT_RENAME(u_setAtomicIncDecFunctions)
+#define u_setDataDirectory U_ICU_ENTRY_POINT_RENAME(u_setDataDirectory)
+#define u_setMemoryFunctions U_ICU_ENTRY_POINT_RENAME(u_setMemoryFunctions)
+#define u_setMutexFunctions U_ICU_ENTRY_POINT_RENAME(u_setMutexFunctions)
+#define u_setTimeZoneFilesDirectory U_ICU_ENTRY_POINT_RENAME(u_setTimeZoneFilesDirectory)
+#define u_shapeArabic U_ICU_ENTRY_POINT_RENAME(u_shapeArabic)
+#define u_snprintf U_ICU_ENTRY_POINT_RENAME(u_snprintf)
+#define u_snprintf_u U_ICU_ENTRY_POINT_RENAME(u_snprintf_u)
+#define u_sprintf U_ICU_ENTRY_POINT_RENAME(u_sprintf)
+#define u_sprintf_u U_ICU_ENTRY_POINT_RENAME(u_sprintf_u)
+#define u_sscanf U_ICU_ENTRY_POINT_RENAME(u_sscanf)
+#define u_sscanf_u U_ICU_ENTRY_POINT_RENAME(u_sscanf_u)
+#define u_strCaseCompare U_ICU_ENTRY_POINT_RENAME(u_strCaseCompare)
+#define u_strCompare U_ICU_ENTRY_POINT_RENAME(u_strCompare)
+#define u_strCompareIter U_ICU_ENTRY_POINT_RENAME(u_strCompareIter)
+#define u_strFindFirst U_ICU_ENTRY_POINT_RENAME(u_strFindFirst)
+#define u_strFindLast U_ICU_ENTRY_POINT_RENAME(u_strFindLast)
+#define u_strFoldCase U_ICU_ENTRY_POINT_RENAME(u_strFoldCase)
+#define u_strFromJavaModifiedUTF8WithSub U_ICU_ENTRY_POINT_RENAME(u_strFromJavaModifiedUTF8WithSub)
+#define u_strFromPunycode U_ICU_ENTRY_POINT_RENAME(u_strFromPunycode)
+#define u_strFromUTF32 U_ICU_ENTRY_POINT_RENAME(u_strFromUTF32)
+#define u_strFromUTF32WithSub U_ICU_ENTRY_POINT_RENAME(u_strFromUTF32WithSub)
+#define u_strFromUTF8 U_ICU_ENTRY_POINT_RENAME(u_strFromUTF8)
+#define u_strFromUTF8Lenient U_ICU_ENTRY_POINT_RENAME(u_strFromUTF8Lenient)
+#define u_strFromUTF8WithSub U_ICU_ENTRY_POINT_RENAME(u_strFromUTF8WithSub)
+#define u_strFromWCS U_ICU_ENTRY_POINT_RENAME(u_strFromWCS)
+#define u_strHasMoreChar32Than U_ICU_ENTRY_POINT_RENAME(u_strHasMoreChar32Than)
+#define u_strToJavaModifiedUTF8 U_ICU_ENTRY_POINT_RENAME(u_strToJavaModifiedUTF8)
+#define u_strToLower U_ICU_ENTRY_POINT_RENAME(u_strToLower)
+#define u_strToPunycode U_ICU_ENTRY_POINT_RENAME(u_strToPunycode)
+#define u_strToTitle U_ICU_ENTRY_POINT_RENAME(u_strToTitle)
+#define u_strToUTF32 U_ICU_ENTRY_POINT_RENAME(u_strToUTF32)
+#define u_strToUTF32WithSub U_ICU_ENTRY_POINT_RENAME(u_strToUTF32WithSub)
+#define u_strToUTF8 U_ICU_ENTRY_POINT_RENAME(u_strToUTF8)
+#define u_strToUTF8WithSub U_ICU_ENTRY_POINT_RENAME(u_strToUTF8WithSub)
+#define u_strToUpper U_ICU_ENTRY_POINT_RENAME(u_strToUpper)
+#define u_strToWCS U_ICU_ENTRY_POINT_RENAME(u_strToWCS)
+#define u_strcasecmp U_ICU_ENTRY_POINT_RENAME(u_strcasecmp)
+#define u_strcat U_ICU_ENTRY_POINT_RENAME(u_strcat)
+#define u_strchr U_ICU_ENTRY_POINT_RENAME(u_strchr)
+#define u_strchr32 U_ICU_ENTRY_POINT_RENAME(u_strchr32)
+#define u_strcmp U_ICU_ENTRY_POINT_RENAME(u_strcmp)
+#define u_strcmpCodePointOrder U_ICU_ENTRY_POINT_RENAME(u_strcmpCodePointOrder)
+#define u_strcmpFold U_ICU_ENTRY_POINT_RENAME(u_strcmpFold)
+#define u_strcpy U_ICU_ENTRY_POINT_RENAME(u_strcpy)
+#define u_strcspn U_ICU_ENTRY_POINT_RENAME(u_strcspn)
+#define u_strlen U_ICU_ENTRY_POINT_RENAME(u_strlen)
+#define u_strncasecmp U_ICU_ENTRY_POINT_RENAME(u_strncasecmp)
+#define u_strncat U_ICU_ENTRY_POINT_RENAME(u_strncat)
+#define u_strncmp U_ICU_ENTRY_POINT_RENAME(u_strncmp)
+#define u_strncmpCodePointOrder U_ICU_ENTRY_POINT_RENAME(u_strncmpCodePointOrder)
+#define u_strncpy U_ICU_ENTRY_POINT_RENAME(u_strncpy)
+#define u_strpbrk U_ICU_ENTRY_POINT_RENAME(u_strpbrk)
+#define u_strrchr U_ICU_ENTRY_POINT_RENAME(u_strrchr)
+#define u_strrchr32 U_ICU_ENTRY_POINT_RENAME(u_strrchr32)
+#define u_strrstr U_ICU_ENTRY_POINT_RENAME(u_strrstr)
+#define u_strspn U_ICU_ENTRY_POINT_RENAME(u_strspn)
+#define u_strstr U_ICU_ENTRY_POINT_RENAME(u_strstr)
+#define u_strtok_r U_ICU_ENTRY_POINT_RENAME(u_strtok_r)
+#define u_terminateChars U_ICU_ENTRY_POINT_RENAME(u_terminateChars)
+#define u_terminateUChar32s U_ICU_ENTRY_POINT_RENAME(u_terminateUChar32s)
+#define u_terminateUChars U_ICU_ENTRY_POINT_RENAME(u_terminateUChars)
+#define u_terminateWChars U_ICU_ENTRY_POINT_RENAME(u_terminateWChars)
+#define u_tolower U_ICU_ENTRY_POINT_RENAME(u_tolower)
+#define u_totitle U_ICU_ENTRY_POINT_RENAME(u_totitle)
+#define u_toupper U_ICU_ENTRY_POINT_RENAME(u_toupper)
+#define u_uastrcpy U_ICU_ENTRY_POINT_RENAME(u_uastrcpy)
+#define u_uastrncpy U_ICU_ENTRY_POINT_RENAME(u_uastrncpy)
+#define u_unescape U_ICU_ENTRY_POINT_RENAME(u_unescape)
+#define u_unescapeAt U_ICU_ENTRY_POINT_RENAME(u_unescapeAt)
+#define u_versionFromString U_ICU_ENTRY_POINT_RENAME(u_versionFromString)
+#define u_versionFromUString U_ICU_ENTRY_POINT_RENAME(u_versionFromUString)
+#define u_versionToString U_ICU_ENTRY_POINT_RENAME(u_versionToString)
+#define u_vformatMessage U_ICU_ENTRY_POINT_RENAME(u_vformatMessage)
+#define u_vformatMessageWithError U_ICU_ENTRY_POINT_RENAME(u_vformatMessageWithError)
+#define u_vfprintf U_ICU_ENTRY_POINT_RENAME(u_vfprintf)
+#define u_vfprintf_u U_ICU_ENTRY_POINT_RENAME(u_vfprintf_u)
+#define u_vfscanf U_ICU_ENTRY_POINT_RENAME(u_vfscanf)
+#define u_vfscanf_u U_ICU_ENTRY_POINT_RENAME(u_vfscanf_u)
+#define u_vparseMessage U_ICU_ENTRY_POINT_RENAME(u_vparseMessage)
+#define u_vparseMessageWithError U_ICU_ENTRY_POINT_RENAME(u_vparseMessageWithError)
+#define u_vsnprintf U_ICU_ENTRY_POINT_RENAME(u_vsnprintf)
+#define u_vsnprintf_u U_ICU_ENTRY_POINT_RENAME(u_vsnprintf_u)
+#define u_vsprintf U_ICU_ENTRY_POINT_RENAME(u_vsprintf)
+#define u_vsprintf_u U_ICU_ENTRY_POINT_RENAME(u_vsprintf_u)
+#define u_vsscanf U_ICU_ENTRY_POINT_RENAME(u_vsscanf)
+#define u_vsscanf_u U_ICU_ENTRY_POINT_RENAME(u_vsscanf_u)
+#define u_writeIdenticalLevelRun U_ICU_ENTRY_POINT_RENAME(u_writeIdenticalLevelRun)
+#define ubidi_addPropertyStarts U_ICU_ENTRY_POINT_RENAME(ubidi_addPropertyStarts)
+#define ubidi_close U_ICU_ENTRY_POINT_RENAME(ubidi_close)
+#define ubidi_countParagraphs U_ICU_ENTRY_POINT_RENAME(ubidi_countParagraphs)
+#define ubidi_countRuns U_ICU_ENTRY_POINT_RENAME(ubidi_countRuns)
+#define ubidi_getBaseDirection U_ICU_ENTRY_POINT_RENAME(ubidi_getBaseDirection)
+#define ubidi_getClass U_ICU_ENTRY_POINT_RENAME(ubidi_getClass)
+#define ubidi_getClassCallback U_ICU_ENTRY_POINT_RENAME(ubidi_getClassCallback)
+#define ubidi_getCustomizedClass U_ICU_ENTRY_POINT_RENAME(ubidi_getCustomizedClass)
+#define ubidi_getDirection U_ICU_ENTRY_POINT_RENAME(ubidi_getDirection)
+#define ubidi_getJoiningGroup U_ICU_ENTRY_POINT_RENAME(ubidi_getJoiningGroup)
+#define ubidi_getJoiningType U_ICU_ENTRY_POINT_RENAME(ubidi_getJoiningType)
+#define ubidi_getLength U_ICU_ENTRY_POINT_RENAME(ubidi_getLength)
+#define ubidi_getLevelAt U_ICU_ENTRY_POINT_RENAME(ubidi_getLevelAt)
+#define ubidi_getLevels U_ICU_ENTRY_POINT_RENAME(ubidi_getLevels)
+#define ubidi_getLogicalIndex U_ICU_ENTRY_POINT_RENAME(ubidi_getLogicalIndex)
+#define ubidi_getLogicalMap U_ICU_ENTRY_POINT_RENAME(ubidi_getLogicalMap)
+#define ubidi_getLogicalRun U_ICU_ENTRY_POINT_RENAME(ubidi_getLogicalRun)
+#define ubidi_getMaxValue U_ICU_ENTRY_POINT_RENAME(ubidi_getMaxValue)
+#define ubidi_getMemory U_ICU_ENTRY_POINT_RENAME(ubidi_getMemory)
+#define ubidi_getMirror U_ICU_ENTRY_POINT_RENAME(ubidi_getMirror)
+#define ubidi_getPairedBracket U_ICU_ENTRY_POINT_RENAME(ubidi_getPairedBracket)
+#define ubidi_getPairedBracketType U_ICU_ENTRY_POINT_RENAME(ubidi_getPairedBracketType)
+#define ubidi_getParaLevel U_ICU_ENTRY_POINT_RENAME(ubidi_getParaLevel)
+#define ubidi_getParaLevelAtIndex U_ICU_ENTRY_POINT_RENAME(ubidi_getParaLevelAtIndex)
+#define ubidi_getParagraph U_ICU_ENTRY_POINT_RENAME(ubidi_getParagraph)
+#define ubidi_getParagraphByIndex U_ICU_ENTRY_POINT_RENAME(ubidi_getParagraphByIndex)
+#define ubidi_getProcessedLength U_ICU_ENTRY_POINT_RENAME(ubidi_getProcessedLength)
+#define ubidi_getReorderingMode U_ICU_ENTRY_POINT_RENAME(ubidi_getReorderingMode)
+#define ubidi_getReorderingOptions U_ICU_ENTRY_POINT_RENAME(ubidi_getReorderingOptions)
+#define ubidi_getResultLength U_ICU_ENTRY_POINT_RENAME(ubidi_getResultLength)
+#define ubidi_getRuns U_ICU_ENTRY_POINT_RENAME(ubidi_getRuns)
+#define ubidi_getText U_ICU_ENTRY_POINT_RENAME(ubidi_getText)
+#define ubidi_getVisualIndex U_ICU_ENTRY_POINT_RENAME(ubidi_getVisualIndex)
+#define ubidi_getVisualMap U_ICU_ENTRY_POINT_RENAME(ubidi_getVisualMap)
+#define ubidi_getVisualRun U_ICU_ENTRY_POINT_RENAME(ubidi_getVisualRun)
+#define ubidi_invertMap U_ICU_ENTRY_POINT_RENAME(ubidi_invertMap)
+#define ubidi_isBidiControl U_ICU_ENTRY_POINT_RENAME(ubidi_isBidiControl)
+#define ubidi_isInverse U_ICU_ENTRY_POINT_RENAME(ubidi_isInverse)
+#define ubidi_isJoinControl U_ICU_ENTRY_POINT_RENAME(ubidi_isJoinControl)
+#define ubidi_isMirrored U_ICU_ENTRY_POINT_RENAME(ubidi_isMirrored)
+#define ubidi_isOrderParagraphsLTR U_ICU_ENTRY_POINT_RENAME(ubidi_isOrderParagraphsLTR)
+#define ubidi_open U_ICU_ENTRY_POINT_RENAME(ubidi_open)
+#define ubidi_openSized U_ICU_ENTRY_POINT_RENAME(ubidi_openSized)
+#define ubidi_orderParagraphsLTR U_ICU_ENTRY_POINT_RENAME(ubidi_orderParagraphsLTR)
+#define ubidi_reorderLogical U_ICU_ENTRY_POINT_RENAME(ubidi_reorderLogical)
+#define ubidi_reorderVisual U_ICU_ENTRY_POINT_RENAME(ubidi_reorderVisual)
+#define ubidi_setClassCallback U_ICU_ENTRY_POINT_RENAME(ubidi_setClassCallback)
+#define ubidi_setContext U_ICU_ENTRY_POINT_RENAME(ubidi_setContext)
+#define ubidi_setInverse U_ICU_ENTRY_POINT_RENAME(ubidi_setInverse)
+#define ubidi_setLine U_ICU_ENTRY_POINT_RENAME(ubidi_setLine)
+#define ubidi_setPara U_ICU_ENTRY_POINT_RENAME(ubidi_setPara)
+#define ubidi_setReorderingMode U_ICU_ENTRY_POINT_RENAME(ubidi_setReorderingMode)
+#define ubidi_setReorderingOptions U_ICU_ENTRY_POINT_RENAME(ubidi_setReorderingOptions)
+#define ubidi_writeReordered U_ICU_ENTRY_POINT_RENAME(ubidi_writeReordered)
+#define ubidi_writeReverse U_ICU_ENTRY_POINT_RENAME(ubidi_writeReverse)
+#define ubiditransform_close U_ICU_ENTRY_POINT_RENAME(ubiditransform_close)
+#define ubiditransform_open U_ICU_ENTRY_POINT_RENAME(ubiditransform_open)
+#define ubiditransform_transform U_ICU_ENTRY_POINT_RENAME(ubiditransform_transform)
+#define ublock_getCode U_ICU_ENTRY_POINT_RENAME(ublock_getCode)
+#define ubrk_close U_ICU_ENTRY_POINT_RENAME(ubrk_close)
+#define ubrk_countAvailable U_ICU_ENTRY_POINT_RENAME(ubrk_countAvailable)
+#define ubrk_current U_ICU_ENTRY_POINT_RENAME(ubrk_current)
+#define ubrk_first U_ICU_ENTRY_POINT_RENAME(ubrk_first)
+#define ubrk_following U_ICU_ENTRY_POINT_RENAME(ubrk_following)
+#define ubrk_getAvailable U_ICU_ENTRY_POINT_RENAME(ubrk_getAvailable)
+#define ubrk_getBinaryRules U_ICU_ENTRY_POINT_RENAME(ubrk_getBinaryRules)
+#define ubrk_getLocaleByType U_ICU_ENTRY_POINT_RENAME(ubrk_getLocaleByType)
+#define ubrk_getRuleStatus U_ICU_ENTRY_POINT_RENAME(ubrk_getRuleStatus)
+#define ubrk_getRuleStatusVec U_ICU_ENTRY_POINT_RENAME(ubrk_getRuleStatusVec)
+#define ubrk_isBoundary U_ICU_ENTRY_POINT_RENAME(ubrk_isBoundary)
+#define ubrk_last U_ICU_ENTRY_POINT_RENAME(ubrk_last)
+#define ubrk_next U_ICU_ENTRY_POINT_RENAME(ubrk_next)
+#define ubrk_open U_ICU_ENTRY_POINT_RENAME(ubrk_open)
+#define ubrk_openBinaryRules U_ICU_ENTRY_POINT_RENAME(ubrk_openBinaryRules)
+#define ubrk_openRules U_ICU_ENTRY_POINT_RENAME(ubrk_openRules)
+#define ubrk_preceding U_ICU_ENTRY_POINT_RENAME(ubrk_preceding)
+#define ubrk_previous U_ICU_ENTRY_POINT_RENAME(ubrk_previous)
+#define ubrk_refreshUText U_ICU_ENTRY_POINT_RENAME(ubrk_refreshUText)
+#define ubrk_safeClone U_ICU_ENTRY_POINT_RENAME(ubrk_safeClone)
+#define ubrk_setText U_ICU_ENTRY_POINT_RENAME(ubrk_setText)
+#define ubrk_setUText U_ICU_ENTRY_POINT_RENAME(ubrk_setUText)
+#define ubrk_swap U_ICU_ENTRY_POINT_RENAME(ubrk_swap)
+#define ucache_compareKeys U_ICU_ENTRY_POINT_RENAME(ucache_compareKeys)
+#define ucache_deleteKey U_ICU_ENTRY_POINT_RENAME(ucache_deleteKey)
+#define ucache_hashKeys U_ICU_ENTRY_POINT_RENAME(ucache_hashKeys)
+#define ucal_add U_ICU_ENTRY_POINT_RENAME(ucal_add)
+#define ucal_clear U_ICU_ENTRY_POINT_RENAME(ucal_clear)
+#define ucal_clearField U_ICU_ENTRY_POINT_RENAME(ucal_clearField)
+#define ucal_clone U_ICU_ENTRY_POINT_RENAME(ucal_clone)
+#define ucal_close U_ICU_ENTRY_POINT_RENAME(ucal_close)
+#define ucal_countAvailable U_ICU_ENTRY_POINT_RENAME(ucal_countAvailable)
+#define ucal_equivalentTo U_ICU_ENTRY_POINT_RENAME(ucal_equivalentTo)
+#define ucal_get U_ICU_ENTRY_POINT_RENAME(ucal_get)
+#define ucal_getAttribute U_ICU_ENTRY_POINT_RENAME(ucal_getAttribute)
+#define ucal_getAvailable U_ICU_ENTRY_POINT_RENAME(ucal_getAvailable)
+#define ucal_getCanonicalTimeZoneID U_ICU_ENTRY_POINT_RENAME(ucal_getCanonicalTimeZoneID)
+#define ucal_getDSTSavings U_ICU_ENTRY_POINT_RENAME(ucal_getDSTSavings)
+#define ucal_getDayOfWeekType U_ICU_ENTRY_POINT_RENAME(ucal_getDayOfWeekType)
+#define ucal_getDefaultTimeZone U_ICU_ENTRY_POINT_RENAME(ucal_getDefaultTimeZone)
+#define ucal_getFieldDifference U_ICU_ENTRY_POINT_RENAME(ucal_getFieldDifference)
+#define ucal_getGregorianChange U_ICU_ENTRY_POINT_RENAME(ucal_getGregorianChange)
+#define ucal_getKeywordValuesForLocale U_ICU_ENTRY_POINT_RENAME(ucal_getKeywordValuesForLocale)
+#define ucal_getLimit U_ICU_ENTRY_POINT_RENAME(ucal_getLimit)
+#define ucal_getLocaleByType U_ICU_ENTRY_POINT_RENAME(ucal_getLocaleByType)
+#define ucal_getMillis U_ICU_ENTRY_POINT_RENAME(ucal_getMillis)
+#define ucal_getNow U_ICU_ENTRY_POINT_RENAME(ucal_getNow)
+#define ucal_getTZDataVersion U_ICU_ENTRY_POINT_RENAME(ucal_getTZDataVersion)
+#define ucal_getTimeZoneDisplayName U_ICU_ENTRY_POINT_RENAME(ucal_getTimeZoneDisplayName)
+#define ucal_getTimeZoneID U_ICU_ENTRY_POINT_RENAME(ucal_getTimeZoneID)
+#define ucal_getTimeZoneIDForWindowsID U_ICU_ENTRY_POINT_RENAME(ucal_getTimeZoneIDForWindowsID)
+#define ucal_getTimeZoneTransitionDate U_ICU_ENTRY_POINT_RENAME(ucal_getTimeZoneTransitionDate)
+#define ucal_getType U_ICU_ENTRY_POINT_RENAME(ucal_getType)
+#define ucal_getWeekendTransition U_ICU_ENTRY_POINT_RENAME(ucal_getWeekendTransition)
+#define ucal_getWindowsTimeZoneID U_ICU_ENTRY_POINT_RENAME(ucal_getWindowsTimeZoneID)
+#define ucal_inDaylightTime U_ICU_ENTRY_POINT_RENAME(ucal_inDaylightTime)
+#define ucal_isSet U_ICU_ENTRY_POINT_RENAME(ucal_isSet)
+#define ucal_isWeekend U_ICU_ENTRY_POINT_RENAME(ucal_isWeekend)
+#define ucal_open U_ICU_ENTRY_POINT_RENAME(ucal_open)
+#define ucal_openCountryTimeZones U_ICU_ENTRY_POINT_RENAME(ucal_openCountryTimeZones)
+#define ucal_openTimeZoneIDEnumeration U_ICU_ENTRY_POINT_RENAME(ucal_openTimeZoneIDEnumeration)
+#define ucal_openTimeZones U_ICU_ENTRY_POINT_RENAME(ucal_openTimeZones)
+#define ucal_roll U_ICU_ENTRY_POINT_RENAME(ucal_roll)
+#define ucal_set U_ICU_ENTRY_POINT_RENAME(ucal_set)
+#define ucal_setAttribute U_ICU_ENTRY_POINT_RENAME(ucal_setAttribute)
+#define ucal_setDate U_ICU_ENTRY_POINT_RENAME(ucal_setDate)
+#define ucal_setDateTime U_ICU_ENTRY_POINT_RENAME(ucal_setDateTime)
+#define ucal_setDefaultTimeZone U_ICU_ENTRY_POINT_RENAME(ucal_setDefaultTimeZone)
+#define ucal_setGregorianChange U_ICU_ENTRY_POINT_RENAME(ucal_setGregorianChange)
+#define ucal_setMillis U_ICU_ENTRY_POINT_RENAME(ucal_setMillis)
+#define ucal_setTimeZone U_ICU_ENTRY_POINT_RENAME(ucal_setTimeZone)
+#define ucase_addCaseClosure U_ICU_ENTRY_POINT_RENAME(ucase_addCaseClosure)
+#define ucase_addPropertyStarts U_ICU_ENTRY_POINT_RENAME(ucase_addPropertyStarts)
+#define ucase_addStringCaseClosure U_ICU_ENTRY_POINT_RENAME(ucase_addStringCaseClosure)
+#define ucase_fold U_ICU_ENTRY_POINT_RENAME(ucase_fold)
+#define ucase_getCaseLocale U_ICU_ENTRY_POINT_RENAME(ucase_getCaseLocale)
+#define ucase_getTrie U_ICU_ENTRY_POINT_RENAME(ucase_getTrie)
+#define ucase_getType U_ICU_ENTRY_POINT_RENAME(ucase_getType)
+#define ucase_getTypeOrIgnorable U_ICU_ENTRY_POINT_RENAME(ucase_getTypeOrIgnorable)
+#define ucase_hasBinaryProperty U_ICU_ENTRY_POINT_RENAME(ucase_hasBinaryProperty)
+#define ucase_isCaseSensitive U_ICU_ENTRY_POINT_RENAME(ucase_isCaseSensitive)
+#define ucase_isSoftDotted U_ICU_ENTRY_POINT_RENAME(ucase_isSoftDotted)
+#define ucase_toFullFolding U_ICU_ENTRY_POINT_RENAME(ucase_toFullFolding)
+#define ucase_toFullLower U_ICU_ENTRY_POINT_RENAME(ucase_toFullLower)
+#define ucase_toFullTitle U_ICU_ENTRY_POINT_RENAME(ucase_toFullTitle)
+#define ucase_toFullUpper U_ICU_ENTRY_POINT_RENAME(ucase_toFullUpper)
+#define ucase_tolower U_ICU_ENTRY_POINT_RENAME(ucase_tolower)
+#define ucase_totitle U_ICU_ENTRY_POINT_RENAME(ucase_totitle)
+#define ucase_toupper U_ICU_ENTRY_POINT_RENAME(ucase_toupper)
+#define ucasemap_close U_ICU_ENTRY_POINT_RENAME(ucasemap_close)
+#define ucasemap_getBreakIterator U_ICU_ENTRY_POINT_RENAME(ucasemap_getBreakIterator)
+#define ucasemap_getLocale U_ICU_ENTRY_POINT_RENAME(ucasemap_getLocale)
+#define ucasemap_getOptions U_ICU_ENTRY_POINT_RENAME(ucasemap_getOptions)
+#define ucasemap_internalUTF8ToTitle U_ICU_ENTRY_POINT_RENAME(ucasemap_internalUTF8ToTitle)
+#define ucasemap_mapUTF8 U_ICU_ENTRY_POINT_RENAME(ucasemap_mapUTF8)
+#define ucasemap_open U_ICU_ENTRY_POINT_RENAME(ucasemap_open)
+#define ucasemap_setBreakIterator U_ICU_ENTRY_POINT_RENAME(ucasemap_setBreakIterator)
+#define ucasemap_setLocale U_ICU_ENTRY_POINT_RENAME(ucasemap_setLocale)
+#define ucasemap_setOptions U_ICU_ENTRY_POINT_RENAME(ucasemap_setOptions)
+#define ucasemap_toTitle U_ICU_ENTRY_POINT_RENAME(ucasemap_toTitle)
+#define ucasemap_utf8FoldCase U_ICU_ENTRY_POINT_RENAME(ucasemap_utf8FoldCase)
+#define ucasemap_utf8ToLower U_ICU_ENTRY_POINT_RENAME(ucasemap_utf8ToLower)
+#define ucasemap_utf8ToTitle U_ICU_ENTRY_POINT_RENAME(ucasemap_utf8ToTitle)
+#define ucasemap_utf8ToUpper U_ICU_ENTRY_POINT_RENAME(ucasemap_utf8ToUpper)
+#define uchar_addPropertyStarts U_ICU_ENTRY_POINT_RENAME(uchar_addPropertyStarts)
+#define uchar_swapNames U_ICU_ENTRY_POINT_RENAME(uchar_swapNames)
+#define ucln_cleanupOne U_ICU_ENTRY_POINT_RENAME(ucln_cleanupOne)
+#define ucln_common_registerCleanup U_ICU_ENTRY_POINT_RENAME(ucln_common_registerCleanup)
+#define ucln_i18n_registerCleanup U_ICU_ENTRY_POINT_RENAME(ucln_i18n_registerCleanup)
+#define ucln_io_registerCleanup U_ICU_ENTRY_POINT_RENAME(ucln_io_registerCleanup)
+#define ucln_lib_cleanup U_ICU_ENTRY_POINT_RENAME(ucln_lib_cleanup)
+#define ucln_registerCleanup U_ICU_ENTRY_POINT_RENAME(ucln_registerCleanup)
+#define ucnv_MBCSFromUChar32 U_ICU_ENTRY_POINT_RENAME(ucnv_MBCSFromUChar32)
+#define ucnv_MBCSFromUnicodeWithOffsets U_ICU_ENTRY_POINT_RENAME(ucnv_MBCSFromUnicodeWithOffsets)
+#define ucnv_MBCSGetFilteredUnicodeSetForUnicode U_ICU_ENTRY_POINT_RENAME(ucnv_MBCSGetFilteredUnicodeSetForUnicode)
+#define ucnv_MBCSGetType U_ICU_ENTRY_POINT_RENAME(ucnv_MBCSGetType)
+#define ucnv_MBCSGetUnicodeSetForUnicode U_ICU_ENTRY_POINT_RENAME(ucnv_MBCSGetUnicodeSetForUnicode)
+#define ucnv_MBCSIsLeadByte U_ICU_ENTRY_POINT_RENAME(ucnv_MBCSIsLeadByte)
+#define ucnv_MBCSSimpleGetNextUChar U_ICU_ENTRY_POINT_RENAME(ucnv_MBCSSimpleGetNextUChar)
+#define ucnv_MBCSToUnicodeWithOffsets U_ICU_ENTRY_POINT_RENAME(ucnv_MBCSToUnicodeWithOffsets)
+#define ucnv_bld_countAvailableConverters U_ICU_ENTRY_POINT_RENAME(ucnv_bld_countAvailableConverters)
+#define ucnv_bld_getAvailableConverter U_ICU_ENTRY_POINT_RENAME(ucnv_bld_getAvailableConverter)
+#define ucnv_canCreateConverter U_ICU_ENTRY_POINT_RENAME(ucnv_canCreateConverter)
+#define ucnv_cbFromUWriteBytes U_ICU_ENTRY_POINT_RENAME(ucnv_cbFromUWriteBytes)
+#define ucnv_cbFromUWriteSub U_ICU_ENTRY_POINT_RENAME(ucnv_cbFromUWriteSub)
+#define ucnv_cbFromUWriteUChars U_ICU_ENTRY_POINT_RENAME(ucnv_cbFromUWriteUChars)
+#define ucnv_cbToUWriteSub U_ICU_ENTRY_POINT_RENAME(ucnv_cbToUWriteSub)
+#define ucnv_cbToUWriteUChars U_ICU_ENTRY_POINT_RENAME(ucnv_cbToUWriteUChars)
+#define ucnv_close U_ICU_ENTRY_POINT_RENAME(ucnv_close)
+#define ucnv_compareNames U_ICU_ENTRY_POINT_RENAME(ucnv_compareNames)
+#define ucnv_convert U_ICU_ENTRY_POINT_RENAME(ucnv_convert)
+#define ucnv_convertEx U_ICU_ENTRY_POINT_RENAME(ucnv_convertEx)
+#define ucnv_countAliases U_ICU_ENTRY_POINT_RENAME(ucnv_countAliases)
+#define ucnv_countAvailable U_ICU_ENTRY_POINT_RENAME(ucnv_countAvailable)
+#define ucnv_countStandards U_ICU_ENTRY_POINT_RENAME(ucnv_countStandards)
+#define ucnv_createAlgorithmicConverter U_ICU_ENTRY_POINT_RENAME(ucnv_createAlgorithmicConverter)
+#define ucnv_createConverter U_ICU_ENTRY_POINT_RENAME(ucnv_createConverter)
+#define ucnv_createConverterFromPackage U_ICU_ENTRY_POINT_RENAME(ucnv_createConverterFromPackage)
+#define ucnv_createConverterFromSharedData U_ICU_ENTRY_POINT_RENAME(ucnv_createConverterFromSharedData)
+#define ucnv_detectUnicodeSignature U_ICU_ENTRY_POINT_RENAME(ucnv_detectUnicodeSignature)
+#define ucnv_extContinueMatchFromU U_ICU_ENTRY_POINT_RENAME(ucnv_extContinueMatchFromU)
+#define ucnv_extContinueMatchToU U_ICU_ENTRY_POINT_RENAME(ucnv_extContinueMatchToU)
+#define ucnv_extGetUnicodeSet U_ICU_ENTRY_POINT_RENAME(ucnv_extGetUnicodeSet)
+#define ucnv_extInitialMatchFromU U_ICU_ENTRY_POINT_RENAME(ucnv_extInitialMatchFromU)
+#define ucnv_extInitialMatchToU U_ICU_ENTRY_POINT_RENAME(ucnv_extInitialMatchToU)
+#define ucnv_extSimpleMatchFromU U_ICU_ENTRY_POINT_RENAME(ucnv_extSimpleMatchFromU)
+#define ucnv_extSimpleMatchToU U_ICU_ENTRY_POINT_RENAME(ucnv_extSimpleMatchToU)
+#define ucnv_fixFileSeparator U_ICU_ENTRY_POINT_RENAME(ucnv_fixFileSeparator)
+#define ucnv_flushCache U_ICU_ENTRY_POINT_RENAME(ucnv_flushCache)
+#define ucnv_fromAlgorithmic U_ICU_ENTRY_POINT_RENAME(ucnv_fromAlgorithmic)
+#define ucnv_fromUChars U_ICU_ENTRY_POINT_RENAME(ucnv_fromUChars)
+#define ucnv_fromUCountPending U_ICU_ENTRY_POINT_RENAME(ucnv_fromUCountPending)
+#define ucnv_fromUWriteBytes U_ICU_ENTRY_POINT_RENAME(ucnv_fromUWriteBytes)
+#define ucnv_fromUnicode U_ICU_ENTRY_POINT_RENAME(ucnv_fromUnicode)
+#define ucnv_fromUnicode_UTF8 U_ICU_ENTRY_POINT_RENAME(ucnv_fromUnicode_UTF8)
+#define ucnv_fromUnicode_UTF8_OFFSETS_LOGIC U_ICU_ENTRY_POINT_RENAME(ucnv_fromUnicode_UTF8_OFFSETS_LOGIC)
+#define ucnv_getAlias U_ICU_ENTRY_POINT_RENAME(ucnv_getAlias)
+#define ucnv_getAliases U_ICU_ENTRY_POINT_RENAME(ucnv_getAliases)
+#define ucnv_getAvailableName U_ICU_ENTRY_POINT_RENAME(ucnv_getAvailableName)
+#define ucnv_getCCSID U_ICU_ENTRY_POINT_RENAME(ucnv_getCCSID)
+#define ucnv_getCanonicalName U_ICU_ENTRY_POINT_RENAME(ucnv_getCanonicalName)
+#define ucnv_getCompleteUnicodeSet U_ICU_ENTRY_POINT_RENAME(ucnv_getCompleteUnicodeSet)
+#define ucnv_getDefaultName U_ICU_ENTRY_POINT_RENAME(ucnv_getDefaultName)
+#define ucnv_getDisplayName U_ICU_ENTRY_POINT_RENAME(ucnv_getDisplayName)
+#define ucnv_getFromUCallBack U_ICU_ENTRY_POINT_RENAME(ucnv_getFromUCallBack)
+#define ucnv_getInvalidChars U_ICU_ENTRY_POINT_RENAME(ucnv_getInvalidChars)
+#define ucnv_getInvalidUChars U_ICU_ENTRY_POINT_RENAME(ucnv_getInvalidUChars)
+#define ucnv_getMaxCharSize U_ICU_ENTRY_POINT_RENAME(ucnv_getMaxCharSize)
+#define ucnv_getMinCharSize U_ICU_ENTRY_POINT_RENAME(ucnv_getMinCharSize)
+#define ucnv_getName U_ICU_ENTRY_POINT_RENAME(ucnv_getName)
+#define ucnv_getNextUChar U_ICU_ENTRY_POINT_RENAME(ucnv_getNextUChar)
+#define ucnv_getNonSurrogateUnicodeSet U_ICU_ENTRY_POINT_RENAME(ucnv_getNonSurrogateUnicodeSet)
+#define ucnv_getPlatform U_ICU_ENTRY_POINT_RENAME(ucnv_getPlatform)
+#define ucnv_getStandard U_ICU_ENTRY_POINT_RENAME(ucnv_getStandard)
+#define ucnv_getStandardName U_ICU_ENTRY_POINT_RENAME(ucnv_getStandardName)
+#define ucnv_getStarters U_ICU_ENTRY_POINT_RENAME(ucnv_getStarters)
+#define ucnv_getSubstChars U_ICU_ENTRY_POINT_RENAME(ucnv_getSubstChars)
+#define ucnv_getToUCallBack U_ICU_ENTRY_POINT_RENAME(ucnv_getToUCallBack)
+#define ucnv_getType U_ICU_ENTRY_POINT_RENAME(ucnv_getType)
+#define ucnv_getUnicodeSet U_ICU_ENTRY_POINT_RENAME(ucnv_getUnicodeSet)
+#define ucnv_incrementRefCount U_ICU_ENTRY_POINT_RENAME(ucnv_incrementRefCount)
+#define ucnv_io_countKnownConverters U_ICU_ENTRY_POINT_RENAME(ucnv_io_countKnownConverters)
+#define ucnv_io_getConverterName U_ICU_ENTRY_POINT_RENAME(ucnv_io_getConverterName)
+#define ucnv_io_stripASCIIForCompare U_ICU_ENTRY_POINT_RENAME(ucnv_io_stripASCIIForCompare)
+#define ucnv_io_stripEBCDICForCompare U_ICU_ENTRY_POINT_RENAME(ucnv_io_stripEBCDICForCompare)
+#define ucnv_isAmbiguous U_ICU_ENTRY_POINT_RENAME(ucnv_isAmbiguous)
+#define ucnv_isFixedWidth U_ICU_ENTRY_POINT_RENAME(ucnv_isFixedWidth)
+#define ucnv_load U_ICU_ENTRY_POINT_RENAME(ucnv_load)
+#define ucnv_loadSharedData U_ICU_ENTRY_POINT_RENAME(ucnv_loadSharedData)
+#define ucnv_open U_ICU_ENTRY_POINT_RENAME(ucnv_open)
+#define ucnv_openAllNames U_ICU_ENTRY_POINT_RENAME(ucnv_openAllNames)
+#define ucnv_openCCSID U_ICU_ENTRY_POINT_RENAME(ucnv_openCCSID)
+#define ucnv_openPackage U_ICU_ENTRY_POINT_RENAME(ucnv_openPackage)
+#define ucnv_openStandardNames U_ICU_ENTRY_POINT_RENAME(ucnv_openStandardNames)
+#define ucnv_openU U_ICU_ENTRY_POINT_RENAME(ucnv_openU)
+#define ucnv_reset U_ICU_ENTRY_POINT_RENAME(ucnv_reset)
+#define ucnv_resetFromUnicode U_ICU_ENTRY_POINT_RENAME(ucnv_resetFromUnicode)
+#define ucnv_resetToUnicode U_ICU_ENTRY_POINT_RENAME(ucnv_resetToUnicode)
+#define ucnv_safeClone U_ICU_ENTRY_POINT_RENAME(ucnv_safeClone)
+#define ucnv_setDefaultName U_ICU_ENTRY_POINT_RENAME(ucnv_setDefaultName)
+#define ucnv_setFallback U_ICU_ENTRY_POINT_RENAME(ucnv_setFallback)
+#define ucnv_setFromUCallBack U_ICU_ENTRY_POINT_RENAME(ucnv_setFromUCallBack)
+#define ucnv_setSubstChars U_ICU_ENTRY_POINT_RENAME(ucnv_setSubstChars)
+#define ucnv_setSubstString U_ICU_ENTRY_POINT_RENAME(ucnv_setSubstString)
+#define ucnv_setToUCallBack U_ICU_ENTRY_POINT_RENAME(ucnv_setToUCallBack)
+#define ucnv_swap U_ICU_ENTRY_POINT_RENAME(ucnv_swap)
+#define ucnv_swapAliases U_ICU_ENTRY_POINT_RENAME(ucnv_swapAliases)
+#define ucnv_toAlgorithmic U_ICU_ENTRY_POINT_RENAME(ucnv_toAlgorithmic)
+#define ucnv_toUChars U_ICU_ENTRY_POINT_RENAME(ucnv_toUChars)
+#define ucnv_toUCountPending U_ICU_ENTRY_POINT_RENAME(ucnv_toUCountPending)
+#define ucnv_toUWriteCodePoint U_ICU_ENTRY_POINT_RENAME(ucnv_toUWriteCodePoint)
+#define ucnv_toUWriteUChars U_ICU_ENTRY_POINT_RENAME(ucnv_toUWriteUChars)
+#define ucnv_toUnicode U_ICU_ENTRY_POINT_RENAME(ucnv_toUnicode)
+#define ucnv_unload U_ICU_ENTRY_POINT_RENAME(ucnv_unload)
+#define ucnv_unloadSharedDataIfReady U_ICU_ENTRY_POINT_RENAME(ucnv_unloadSharedDataIfReady)
+#define ucnv_usesFallback U_ICU_ENTRY_POINT_RENAME(ucnv_usesFallback)
+#define ucnvsel_close U_ICU_ENTRY_POINT_RENAME(ucnvsel_close)
+#define ucnvsel_open U_ICU_ENTRY_POINT_RENAME(ucnvsel_open)
+#define ucnvsel_openFromSerialized U_ICU_ENTRY_POINT_RENAME(ucnvsel_openFromSerialized)
+#define ucnvsel_selectForString U_ICU_ENTRY_POINT_RENAME(ucnvsel_selectForString)
+#define ucnvsel_selectForUTF8 U_ICU_ENTRY_POINT_RENAME(ucnvsel_selectForUTF8)
+#define ucnvsel_serialize U_ICU_ENTRY_POINT_RENAME(ucnvsel_serialize)
+#define ucol_cloneBinary U_ICU_ENTRY_POINT_RENAME(ucol_cloneBinary)
+#define ucol_close U_ICU_ENTRY_POINT_RENAME(ucol_close)
+#define ucol_closeElements U_ICU_ENTRY_POINT_RENAME(ucol_closeElements)
+#define ucol_countAvailable U_ICU_ENTRY_POINT_RENAME(ucol_countAvailable)
+#define ucol_equal U_ICU_ENTRY_POINT_RENAME(ucol_equal)
+#define ucol_equals U_ICU_ENTRY_POINT_RENAME(ucol_equals)
+#define ucol_getAttribute U_ICU_ENTRY_POINT_RENAME(ucol_getAttribute)
+#define ucol_getAvailable U_ICU_ENTRY_POINT_RENAME(ucol_getAvailable)
+#define ucol_getBound U_ICU_ENTRY_POINT_RENAME(ucol_getBound)
+#define ucol_getContractions U_ICU_ENTRY_POINT_RENAME(ucol_getContractions)
+#define ucol_getContractionsAndExpansions U_ICU_ENTRY_POINT_RENAME(ucol_getContractionsAndExpansions)
+#define ucol_getDisplayName U_ICU_ENTRY_POINT_RENAME(ucol_getDisplayName)
+#define ucol_getEquivalentReorderCodes U_ICU_ENTRY_POINT_RENAME(ucol_getEquivalentReorderCodes)
+#define ucol_getFunctionalEquivalent U_ICU_ENTRY_POINT_RENAME(ucol_getFunctionalEquivalent)
+#define ucol_getKeywordValues U_ICU_ENTRY_POINT_RENAME(ucol_getKeywordValues)
+#define ucol_getKeywordValuesForLocale U_ICU_ENTRY_POINT_RENAME(ucol_getKeywordValuesForLocale)
+#define ucol_getKeywords U_ICU_ENTRY_POINT_RENAME(ucol_getKeywords)
+#define ucol_getLocale U_ICU_ENTRY_POINT_RENAME(ucol_getLocale)
+#define ucol_getLocaleByType U_ICU_ENTRY_POINT_RENAME(ucol_getLocaleByType)
+#define ucol_getMaxExpansion U_ICU_ENTRY_POINT_RENAME(ucol_getMaxExpansion)
+#define ucol_getMaxVariable U_ICU_ENTRY_POINT_RENAME(ucol_getMaxVariable)
+#define ucol_getOffset U_ICU_ENTRY_POINT_RENAME(ucol_getOffset)
+#define ucol_getReorderCodes U_ICU_ENTRY_POINT_RENAME(ucol_getReorderCodes)
+#define ucol_getRules U_ICU_ENTRY_POINT_RENAME(ucol_getRules)
+#define ucol_getRulesEx U_ICU_ENTRY_POINT_RENAME(ucol_getRulesEx)
+#define ucol_getShortDefinitionString U_ICU_ENTRY_POINT_RENAME(ucol_getShortDefinitionString)
+#define ucol_getSortKey U_ICU_ENTRY_POINT_RENAME(ucol_getSortKey)
+#define ucol_getStrength U_ICU_ENTRY_POINT_RENAME(ucol_getStrength)
+#define ucol_getTailoredSet U_ICU_ENTRY_POINT_RENAME(ucol_getTailoredSet)
+#define ucol_getUCAVersion U_ICU_ENTRY_POINT_RENAME(ucol_getUCAVersion)
+#define ucol_getUnsafeSet U_ICU_ENTRY_POINT_RENAME(ucol_getUnsafeSet)
+#define ucol_getVariableTop U_ICU_ENTRY_POINT_RENAME(ucol_getVariableTop)
+#define ucol_getVersion U_ICU_ENTRY_POINT_RENAME(ucol_getVersion)
+#define ucol_greater U_ICU_ENTRY_POINT_RENAME(ucol_greater)
+#define ucol_greaterOrEqual U_ICU_ENTRY_POINT_RENAME(ucol_greaterOrEqual)
+#define ucol_keyHashCode U_ICU_ENTRY_POINT_RENAME(ucol_keyHashCode)
+#define ucol_looksLikeCollationBinary U_ICU_ENTRY_POINT_RENAME(ucol_looksLikeCollationBinary)
+#define ucol_mergeSortkeys U_ICU_ENTRY_POINT_RENAME(ucol_mergeSortkeys)
+#define ucol_next U_ICU_ENTRY_POINT_RENAME(ucol_next)
+#define ucol_nextSortKeyPart U_ICU_ENTRY_POINT_RENAME(ucol_nextSortKeyPart)
+#define ucol_normalizeShortDefinitionString U_ICU_ENTRY_POINT_RENAME(ucol_normalizeShortDefinitionString)
+#define ucol_open U_ICU_ENTRY_POINT_RENAME(ucol_open)
+#define ucol_openAvailableLocales U_ICU_ENTRY_POINT_RENAME(ucol_openAvailableLocales)
+#define ucol_openBinary U_ICU_ENTRY_POINT_RENAME(ucol_openBinary)
+#define ucol_openElements U_ICU_ENTRY_POINT_RENAME(ucol_openElements)
+#define ucol_openFromShortString U_ICU_ENTRY_POINT_RENAME(ucol_openFromShortString)
+#define ucol_openRules U_ICU_ENTRY_POINT_RENAME(ucol_openRules)
+#define ucol_prepareShortStringOpen U_ICU_ENTRY_POINT_RENAME(ucol_prepareShortStringOpen)
+#define ucol_previous U_ICU_ENTRY_POINT_RENAME(ucol_previous)
+#define ucol_primaryOrder U_ICU_ENTRY_POINT_RENAME(ucol_primaryOrder)
+#define ucol_reset U_ICU_ENTRY_POINT_RENAME(ucol_reset)
+#define ucol_restoreVariableTop U_ICU_ENTRY_POINT_RENAME(ucol_restoreVariableTop)
+#define ucol_safeClone U_ICU_ENTRY_POINT_RENAME(ucol_safeClone)
+#define ucol_secondaryOrder U_ICU_ENTRY_POINT_RENAME(ucol_secondaryOrder)
+#define ucol_setAttribute U_ICU_ENTRY_POINT_RENAME(ucol_setAttribute)
+#define ucol_setMaxVariable U_ICU_ENTRY_POINT_RENAME(ucol_setMaxVariable)
+#define ucol_setOffset U_ICU_ENTRY_POINT_RENAME(ucol_setOffset)
+#define ucol_setReorderCodes U_ICU_ENTRY_POINT_RENAME(ucol_setReorderCodes)
+#define ucol_setStrength U_ICU_ENTRY_POINT_RENAME(ucol_setStrength)
+#define ucol_setText U_ICU_ENTRY_POINT_RENAME(ucol_setText)
+#define ucol_setVariableTop U_ICU_ENTRY_POINT_RENAME(ucol_setVariableTop)
+#define ucol_strcoll U_ICU_ENTRY_POINT_RENAME(ucol_strcoll)
+#define ucol_strcollIter U_ICU_ENTRY_POINT_RENAME(ucol_strcollIter)
+#define ucol_strcollUTF8 U_ICU_ENTRY_POINT_RENAME(ucol_strcollUTF8)
+#define ucol_swap U_ICU_ENTRY_POINT_RENAME(ucol_swap)
+#define ucol_swapInverseUCA U_ICU_ENTRY_POINT_RENAME(ucol_swapInverseUCA)
+#define ucol_tertiaryOrder U_ICU_ENTRY_POINT_RENAME(ucol_tertiaryOrder)
+#define ucsdet_close U_ICU_ENTRY_POINT_RENAME(ucsdet_close)
+#define ucsdet_detect U_ICU_ENTRY_POINT_RENAME(ucsdet_detect)
+#define ucsdet_detectAll U_ICU_ENTRY_POINT_RENAME(ucsdet_detectAll)
+#define ucsdet_enableInputFilter U_ICU_ENTRY_POINT_RENAME(ucsdet_enableInputFilter)
+#define ucsdet_getAllDetectableCharsets U_ICU_ENTRY_POINT_RENAME(ucsdet_getAllDetectableCharsets)
+#define ucsdet_getConfidence U_ICU_ENTRY_POINT_RENAME(ucsdet_getConfidence)
+#define ucsdet_getDetectableCharsets U_ICU_ENTRY_POINT_RENAME(ucsdet_getDetectableCharsets)
+#define ucsdet_getLanguage U_ICU_ENTRY_POINT_RENAME(ucsdet_getLanguage)
+#define ucsdet_getName U_ICU_ENTRY_POINT_RENAME(ucsdet_getName)
+#define ucsdet_getUChars U_ICU_ENTRY_POINT_RENAME(ucsdet_getUChars)
+#define ucsdet_isInputFilterEnabled U_ICU_ENTRY_POINT_RENAME(ucsdet_isInputFilterEnabled)
+#define ucsdet_open U_ICU_ENTRY_POINT_RENAME(ucsdet_open)
+#define ucsdet_setDeclaredEncoding U_ICU_ENTRY_POINT_RENAME(ucsdet_setDeclaredEncoding)
+#define ucsdet_setDetectableCharset U_ICU_ENTRY_POINT_RENAME(ucsdet_setDetectableCharset)
+#define ucsdet_setText U_ICU_ENTRY_POINT_RENAME(ucsdet_setText)
+#define ucurr_countCurrencies U_ICU_ENTRY_POINT_RENAME(ucurr_countCurrencies)
+#define ucurr_forLocale U_ICU_ENTRY_POINT_RENAME(ucurr_forLocale)
+#define ucurr_forLocaleAndDate U_ICU_ENTRY_POINT_RENAME(ucurr_forLocaleAndDate)
+#define ucurr_getDefaultFractionDigits U_ICU_ENTRY_POINT_RENAME(ucurr_getDefaultFractionDigits)
+#define ucurr_getDefaultFractionDigitsForUsage U_ICU_ENTRY_POINT_RENAME(ucurr_getDefaultFractionDigitsForUsage)
+#define ucurr_getKeywordValuesForLocale U_ICU_ENTRY_POINT_RENAME(ucurr_getKeywordValuesForLocale)
+#define ucurr_getName U_ICU_ENTRY_POINT_RENAME(ucurr_getName)
+#define ucurr_getNumericCode U_ICU_ENTRY_POINT_RENAME(ucurr_getNumericCode)
+#define ucurr_getPluralName U_ICU_ENTRY_POINT_RENAME(ucurr_getPluralName)
+#define ucurr_getRoundingIncrement U_ICU_ENTRY_POINT_RENAME(ucurr_getRoundingIncrement)
+#define ucurr_getRoundingIncrementForUsage U_ICU_ENTRY_POINT_RENAME(ucurr_getRoundingIncrementForUsage)
+#define ucurr_isAvailable U_ICU_ENTRY_POINT_RENAME(ucurr_isAvailable)
+#define ucurr_openISOCurrencies U_ICU_ENTRY_POINT_RENAME(ucurr_openISOCurrencies)
+#define ucurr_register U_ICU_ENTRY_POINT_RENAME(ucurr_register)
+#define ucurr_unregister U_ICU_ENTRY_POINT_RENAME(ucurr_unregister)
+#define udat_adoptNumberFormat U_ICU_ENTRY_POINT_RENAME(udat_adoptNumberFormat)
+#define udat_adoptNumberFormatForFields U_ICU_ENTRY_POINT_RENAME(udat_adoptNumberFormatForFields)
+#define udat_applyPattern U_ICU_ENTRY_POINT_RENAME(udat_applyPattern)
+#define udat_applyPatternRelative U_ICU_ENTRY_POINT_RENAME(udat_applyPatternRelative)
+#define udat_clone U_ICU_ENTRY_POINT_RENAME(udat_clone)
+#define udat_close U_ICU_ENTRY_POINT_RENAME(udat_close)
+#define udat_countAvailable U_ICU_ENTRY_POINT_RENAME(udat_countAvailable)
+#define udat_countSymbols U_ICU_ENTRY_POINT_RENAME(udat_countSymbols)
+#define udat_format U_ICU_ENTRY_POINT_RENAME(udat_format)
+#define udat_formatCalendar U_ICU_ENTRY_POINT_RENAME(udat_formatCalendar)
+#define udat_formatCalendarForFields U_ICU_ENTRY_POINT_RENAME(udat_formatCalendarForFields)
+#define udat_formatForFields U_ICU_ENTRY_POINT_RENAME(udat_formatForFields)
+#define udat_get2DigitYearStart U_ICU_ENTRY_POINT_RENAME(udat_get2DigitYearStart)
+#define udat_getAvailable U_ICU_ENTRY_POINT_RENAME(udat_getAvailable)
+#define udat_getBooleanAttribute U_ICU_ENTRY_POINT_RENAME(udat_getBooleanAttribute)
+#define udat_getCalendar U_ICU_ENTRY_POINT_RENAME(udat_getCalendar)
+#define udat_getContext U_ICU_ENTRY_POINT_RENAME(udat_getContext)
+#define udat_getLocaleByType U_ICU_ENTRY_POINT_RENAME(udat_getLocaleByType)
+#define udat_getNumberFormat U_ICU_ENTRY_POINT_RENAME(udat_getNumberFormat)
+#define udat_getNumberFormatForField U_ICU_ENTRY_POINT_RENAME(udat_getNumberFormatForField)
+#define udat_getSymbols U_ICU_ENTRY_POINT_RENAME(udat_getSymbols)
+#define udat_isLenient U_ICU_ENTRY_POINT_RENAME(udat_isLenient)
+#define udat_open U_ICU_ENTRY_POINT_RENAME(udat_open)
+#define udat_parse U_ICU_ENTRY_POINT_RENAME(udat_parse)
+#define udat_parseCalendar U_ICU_ENTRY_POINT_RENAME(udat_parseCalendar)
+#define udat_registerOpener U_ICU_ENTRY_POINT_RENAME(udat_registerOpener)
+#define udat_set2DigitYearStart U_ICU_ENTRY_POINT_RENAME(udat_set2DigitYearStart)
+#define udat_setBooleanAttribute U_ICU_ENTRY_POINT_RENAME(udat_setBooleanAttribute)
+#define udat_setCalendar U_ICU_ENTRY_POINT_RENAME(udat_setCalendar)
+#define udat_setContext U_ICU_ENTRY_POINT_RENAME(udat_setContext)
+#define udat_setLenient U_ICU_ENTRY_POINT_RENAME(udat_setLenient)
+#define udat_setNumberFormat U_ICU_ENTRY_POINT_RENAME(udat_setNumberFormat)
+#define udat_setSymbols U_ICU_ENTRY_POINT_RENAME(udat_setSymbols)
+#define udat_toCalendarDateField U_ICU_ENTRY_POINT_RENAME(udat_toCalendarDateField)
+#define udat_toPattern U_ICU_ENTRY_POINT_RENAME(udat_toPattern)
+#define udat_toPatternRelativeDate U_ICU_ENTRY_POINT_RENAME(udat_toPatternRelativeDate)
+#define udat_toPatternRelativeTime U_ICU_ENTRY_POINT_RENAME(udat_toPatternRelativeTime)
+#define udat_unregisterOpener U_ICU_ENTRY_POINT_RENAME(udat_unregisterOpener)
+#define udata_checkCommonData U_ICU_ENTRY_POINT_RENAME(udata_checkCommonData)
+#define udata_close U_ICU_ENTRY_POINT_RENAME(udata_close)
+#define udata_closeSwapper U_ICU_ENTRY_POINT_RENAME(udata_closeSwapper)
+#define udata_getHeaderSize U_ICU_ENTRY_POINT_RENAME(udata_getHeaderSize)
+#define udata_getInfo U_ICU_ENTRY_POINT_RENAME(udata_getInfo)
+#define udata_getInfoSize U_ICU_ENTRY_POINT_RENAME(udata_getInfoSize)
+#define udata_getLength U_ICU_ENTRY_POINT_RENAME(udata_getLength)
+#define udata_getMemory U_ICU_ENTRY_POINT_RENAME(udata_getMemory)
+#define udata_getRawMemory U_ICU_ENTRY_POINT_RENAME(udata_getRawMemory)
+#define udata_open U_ICU_ENTRY_POINT_RENAME(udata_open)
+#define udata_openChoice U_ICU_ENTRY_POINT_RENAME(udata_openChoice)
+#define udata_openSwapper U_ICU_ENTRY_POINT_RENAME(udata_openSwapper)
+#define udata_openSwapperForInputData U_ICU_ENTRY_POINT_RENAME(udata_openSwapperForInputData)
+#define udata_printError U_ICU_ENTRY_POINT_RENAME(udata_printError)
+#define udata_readInt16 U_ICU_ENTRY_POINT_RENAME(udata_readInt16)
+#define udata_readInt32 U_ICU_ENTRY_POINT_RENAME(udata_readInt32)
+#define udata_setAppData U_ICU_ENTRY_POINT_RENAME(udata_setAppData)
+#define udata_setCommonData U_ICU_ENTRY_POINT_RENAME(udata_setCommonData)
+#define udata_setFileAccess U_ICU_ENTRY_POINT_RENAME(udata_setFileAccess)
+#define udata_swapDataHeader U_ICU_ENTRY_POINT_RENAME(udata_swapDataHeader)
+#define udata_swapInvStringBlock U_ICU_ENTRY_POINT_RENAME(udata_swapInvStringBlock)
+#define udatpg_addPattern U_ICU_ENTRY_POINT_RENAME(udatpg_addPattern)
+#define udatpg_clone U_ICU_ENTRY_POINT_RENAME(udatpg_clone)
+#define udatpg_close U_ICU_ENTRY_POINT_RENAME(udatpg_close)
+#define udatpg_getAppendItemFormat U_ICU_ENTRY_POINT_RENAME(udatpg_getAppendItemFormat)
+#define udatpg_getAppendItemName U_ICU_ENTRY_POINT_RENAME(udatpg_getAppendItemName)
+#define udatpg_getBaseSkeleton U_ICU_ENTRY_POINT_RENAME(udatpg_getBaseSkeleton)
+#define udatpg_getBestPattern U_ICU_ENTRY_POINT_RENAME(udatpg_getBestPattern)
+#define udatpg_getBestPatternWithOptions U_ICU_ENTRY_POINT_RENAME(udatpg_getBestPatternWithOptions)
+#define udatpg_getDateTimeFormat U_ICU_ENTRY_POINT_RENAME(udatpg_getDateTimeFormat)
+#define udatpg_getDecimal U_ICU_ENTRY_POINT_RENAME(udatpg_getDecimal)
+#define udatpg_getFieldDisplayName U_ICU_ENTRY_POINT_RENAME(udatpg_getFieldDisplayName)
+#define udatpg_getPatternForSkeleton U_ICU_ENTRY_POINT_RENAME(udatpg_getPatternForSkeleton)
+#define udatpg_getSkeleton U_ICU_ENTRY_POINT_RENAME(udatpg_getSkeleton)
+#define udatpg_open U_ICU_ENTRY_POINT_RENAME(udatpg_open)
+#define udatpg_openBaseSkeletons U_ICU_ENTRY_POINT_RENAME(udatpg_openBaseSkeletons)
+#define udatpg_openEmpty U_ICU_ENTRY_POINT_RENAME(udatpg_openEmpty)
+#define udatpg_openSkeletons U_ICU_ENTRY_POINT_RENAME(udatpg_openSkeletons)
+#define udatpg_replaceFieldTypes U_ICU_ENTRY_POINT_RENAME(udatpg_replaceFieldTypes)
+#define udatpg_replaceFieldTypesWithOptions U_ICU_ENTRY_POINT_RENAME(udatpg_replaceFieldTypesWithOptions)
+#define udatpg_setAppendItemFormat U_ICU_ENTRY_POINT_RENAME(udatpg_setAppendItemFormat)
+#define udatpg_setAppendItemName U_ICU_ENTRY_POINT_RENAME(udatpg_setAppendItemName)
+#define udatpg_setDateTimeFormat U_ICU_ENTRY_POINT_RENAME(udatpg_setDateTimeFormat)
+#define udatpg_setDecimal U_ICU_ENTRY_POINT_RENAME(udatpg_setDecimal)
+#define udict_swap U_ICU_ENTRY_POINT_RENAME(udict_swap)
+#define udtitvfmt_close U_ICU_ENTRY_POINT_RENAME(udtitvfmt_close)
+#define udtitvfmt_format U_ICU_ENTRY_POINT_RENAME(udtitvfmt_format)
+#define udtitvfmt_open U_ICU_ENTRY_POINT_RENAME(udtitvfmt_open)
+#define uenum_close U_ICU_ENTRY_POINT_RENAME(uenum_close)
+#define uenum_count U_ICU_ENTRY_POINT_RENAME(uenum_count)
+#define uenum_next U_ICU_ENTRY_POINT_RENAME(uenum_next)
+#define uenum_nextDefault U_ICU_ENTRY_POINT_RENAME(uenum_nextDefault)
+#define uenum_openCharStringsEnumeration U_ICU_ENTRY_POINT_RENAME(uenum_openCharStringsEnumeration)
+#define uenum_openFromStringEnumeration U_ICU_ENTRY_POINT_RENAME(uenum_openFromStringEnumeration)
+#define uenum_openUCharStringsEnumeration U_ICU_ENTRY_POINT_RENAME(uenum_openUCharStringsEnumeration)
+#define uenum_reset U_ICU_ENTRY_POINT_RENAME(uenum_reset)
+#define uenum_unext U_ICU_ENTRY_POINT_RENAME(uenum_unext)
+#define uenum_unextDefault U_ICU_ENTRY_POINT_RENAME(uenum_unextDefault)
+#define ufieldpositer_close U_ICU_ENTRY_POINT_RENAME(ufieldpositer_close)
+#define ufieldpositer_next U_ICU_ENTRY_POINT_RENAME(ufieldpositer_next)
+#define ufieldpositer_open U_ICU_ENTRY_POINT_RENAME(ufieldpositer_open)
+#define ufile_close_translit U_ICU_ENTRY_POINT_RENAME(ufile_close_translit)
+#define ufile_fill_uchar_buffer U_ICU_ENTRY_POINT_RENAME(ufile_fill_uchar_buffer)
+#define ufile_flush_io U_ICU_ENTRY_POINT_RENAME(ufile_flush_io)
+#define ufile_flush_translit U_ICU_ENTRY_POINT_RENAME(ufile_flush_translit)
+#define ufile_getch U_ICU_ENTRY_POINT_RENAME(ufile_getch)
+#define ufile_getch32 U_ICU_ENTRY_POINT_RENAME(ufile_getch32)
+#define ufmt_64tou U_ICU_ENTRY_POINT_RENAME(ufmt_64tou)
+#define ufmt_close U_ICU_ENTRY_POINT_RENAME(ufmt_close)
+#define ufmt_defaultCPToUnicode U_ICU_ENTRY_POINT_RENAME(ufmt_defaultCPToUnicode)
+#define ufmt_digitvalue U_ICU_ENTRY_POINT_RENAME(ufmt_digitvalue)
+#define ufmt_getArrayItemByIndex U_ICU_ENTRY_POINT_RENAME(ufmt_getArrayItemByIndex)
+#define ufmt_getArrayLength U_ICU_ENTRY_POINT_RENAME(ufmt_getArrayLength)
+#define ufmt_getDate U_ICU_ENTRY_POINT_RENAME(ufmt_getDate)
+#define ufmt_getDecNumChars U_ICU_ENTRY_POINT_RENAME(ufmt_getDecNumChars)
+#define ufmt_getDouble U_ICU_ENTRY_POINT_RENAME(ufmt_getDouble)
+#define ufmt_getInt64 U_ICU_ENTRY_POINT_RENAME(ufmt_getInt64)
+#define ufmt_getLong U_ICU_ENTRY_POINT_RENAME(ufmt_getLong)
+#define ufmt_getObject U_ICU_ENTRY_POINT_RENAME(ufmt_getObject)
+#define ufmt_getType U_ICU_ENTRY_POINT_RENAME(ufmt_getType)
+#define ufmt_getUChars U_ICU_ENTRY_POINT_RENAME(ufmt_getUChars)
+#define ufmt_isNumeric U_ICU_ENTRY_POINT_RENAME(ufmt_isNumeric)
+#define ufmt_isdigit U_ICU_ENTRY_POINT_RENAME(ufmt_isdigit)
+#define ufmt_open U_ICU_ENTRY_POINT_RENAME(ufmt_open)
+#define ufmt_ptou U_ICU_ENTRY_POINT_RENAME(ufmt_ptou)
+#define ufmt_uto64 U_ICU_ENTRY_POINT_RENAME(ufmt_uto64)
+#define ufmt_utop U_ICU_ENTRY_POINT_RENAME(ufmt_utop)
+#define ugender_getInstance U_ICU_ENTRY_POINT_RENAME(ugender_getInstance)
+#define ugender_getListGender U_ICU_ENTRY_POINT_RENAME(ugender_getListGender)
+#define uhash_close U_ICU_ENTRY_POINT_RENAME(uhash_close)
+#define uhash_compareCaselessUnicodeString U_ICU_ENTRY_POINT_RENAME(uhash_compareCaselessUnicodeString)
+#define uhash_compareChars U_ICU_ENTRY_POINT_RENAME(uhash_compareChars)
+#define uhash_compareIChars U_ICU_ENTRY_POINT_RENAME(uhash_compareIChars)
+#define uhash_compareLong U_ICU_ENTRY_POINT_RENAME(uhash_compareLong)
+#define uhash_compareScriptSet U_ICU_ENTRY_POINT_RENAME(uhash_compareScriptSet)
+#define uhash_compareUChars U_ICU_ENTRY_POINT_RENAME(uhash_compareUChars)
+#define uhash_compareUnicodeString U_ICU_ENTRY_POINT_RENAME(uhash_compareUnicodeString)
+#define uhash_count U_ICU_ENTRY_POINT_RENAME(uhash_count)
+#define uhash_deleteHashtable U_ICU_ENTRY_POINT_RENAME(uhash_deleteHashtable)
+#define uhash_deleteScriptSet U_ICU_ENTRY_POINT_RENAME(uhash_deleteScriptSet)
+#define uhash_equals U_ICU_ENTRY_POINT_RENAME(uhash_equals)
+#define uhash_equalsScriptSet U_ICU_ENTRY_POINT_RENAME(uhash_equalsScriptSet)
+#define uhash_find U_ICU_ENTRY_POINT_RENAME(uhash_find)
+#define uhash_get U_ICU_ENTRY_POINT_RENAME(uhash_get)
+#define uhash_geti U_ICU_ENTRY_POINT_RENAME(uhash_geti)
+#define uhash_hashCaselessUnicodeString U_ICU_ENTRY_POINT_RENAME(uhash_hashCaselessUnicodeString)
+#define uhash_hashChars U_ICU_ENTRY_POINT_RENAME(uhash_hashChars)
+#define uhash_hashIChars U_ICU_ENTRY_POINT_RENAME(uhash_hashIChars)
+#define uhash_hashLong U_ICU_ENTRY_POINT_RENAME(uhash_hashLong)
+#define uhash_hashScriptSet U_ICU_ENTRY_POINT_RENAME(uhash_hashScriptSet)
+#define uhash_hashUChars U_ICU_ENTRY_POINT_RENAME(uhash_hashUChars)
+#define uhash_hashUnicodeString U_ICU_ENTRY_POINT_RENAME(uhash_hashUnicodeString)
+#define uhash_iget U_ICU_ENTRY_POINT_RENAME(uhash_iget)
+#define uhash_igeti U_ICU_ENTRY_POINT_RENAME(uhash_igeti)
+#define uhash_init U_ICU_ENTRY_POINT_RENAME(uhash_init)
+#define uhash_initSize U_ICU_ENTRY_POINT_RENAME(uhash_initSize)
+#define uhash_iput U_ICU_ENTRY_POINT_RENAME(uhash_iput)
+#define uhash_iputi U_ICU_ENTRY_POINT_RENAME(uhash_iputi)
+#define uhash_iremove U_ICU_ENTRY_POINT_RENAME(uhash_iremove)
+#define uhash_iremovei U_ICU_ENTRY_POINT_RENAME(uhash_iremovei)
+#define uhash_nextElement U_ICU_ENTRY_POINT_RENAME(uhash_nextElement)
+#define uhash_open U_ICU_ENTRY_POINT_RENAME(uhash_open)
+#define uhash_openSize U_ICU_ENTRY_POINT_RENAME(uhash_openSize)
+#define uhash_put U_ICU_ENTRY_POINT_RENAME(uhash_put)
+#define uhash_puti U_ICU_ENTRY_POINT_RENAME(uhash_puti)
+#define uhash_remove U_ICU_ENTRY_POINT_RENAME(uhash_remove)
+#define uhash_removeAll U_ICU_ENTRY_POINT_RENAME(uhash_removeAll)
+#define uhash_removeElement U_ICU_ENTRY_POINT_RENAME(uhash_removeElement)
+#define uhash_removei U_ICU_ENTRY_POINT_RENAME(uhash_removei)
+#define uhash_setKeyComparator U_ICU_ENTRY_POINT_RENAME(uhash_setKeyComparator)
+#define uhash_setKeyDeleter U_ICU_ENTRY_POINT_RENAME(uhash_setKeyDeleter)
+#define uhash_setKeyHasher U_ICU_ENTRY_POINT_RENAME(uhash_setKeyHasher)
+#define uhash_setResizePolicy U_ICU_ENTRY_POINT_RENAME(uhash_setResizePolicy)
+#define uhash_setValueComparator U_ICU_ENTRY_POINT_RENAME(uhash_setValueComparator)
+#define uhash_setValueDeleter U_ICU_ENTRY_POINT_RENAME(uhash_setValueDeleter)
+#define uidna_IDNToASCII U_ICU_ENTRY_POINT_RENAME(uidna_IDNToASCII)
+#define uidna_IDNToUnicode U_ICU_ENTRY_POINT_RENAME(uidna_IDNToUnicode)
+#define uidna_close U_ICU_ENTRY_POINT_RENAME(uidna_close)
+#define uidna_compare U_ICU_ENTRY_POINT_RENAME(uidna_compare)
+#define uidna_labelToASCII U_ICU_ENTRY_POINT_RENAME(uidna_labelToASCII)
+#define uidna_labelToASCII_UTF8 U_ICU_ENTRY_POINT_RENAME(uidna_labelToASCII_UTF8)
+#define uidna_labelToUnicode U_ICU_ENTRY_POINT_RENAME(uidna_labelToUnicode)
+#define uidna_labelToUnicodeUTF8 U_ICU_ENTRY_POINT_RENAME(uidna_labelToUnicodeUTF8)
+#define uidna_nameToASCII U_ICU_ENTRY_POINT_RENAME(uidna_nameToASCII)
+#define uidna_nameToASCII_UTF8 U_ICU_ENTRY_POINT_RENAME(uidna_nameToASCII_UTF8)
+#define uidna_nameToUnicode U_ICU_ENTRY_POINT_RENAME(uidna_nameToUnicode)
+#define uidna_nameToUnicodeUTF8 U_ICU_ENTRY_POINT_RENAME(uidna_nameToUnicodeUTF8)
+#define uidna_openUTS46 U_ICU_ENTRY_POINT_RENAME(uidna_openUTS46)
+#define uidna_toASCII U_ICU_ENTRY_POINT_RENAME(uidna_toASCII)
+#define uidna_toUnicode U_ICU_ENTRY_POINT_RENAME(uidna_toUnicode)
+#define uiter_current32 U_ICU_ENTRY_POINT_RENAME(uiter_current32)
+#define uiter_getState U_ICU_ENTRY_POINT_RENAME(uiter_getState)
+#define uiter_next32 U_ICU_ENTRY_POINT_RENAME(uiter_next32)
+#define uiter_previous32 U_ICU_ENTRY_POINT_RENAME(uiter_previous32)
+#define uiter_setCharacterIterator U_ICU_ENTRY_POINT_RENAME(uiter_setCharacterIterator)
+#define uiter_setReplaceable U_ICU_ENTRY_POINT_RENAME(uiter_setReplaceable)
+#define uiter_setState U_ICU_ENTRY_POINT_RENAME(uiter_setState)
+#define uiter_setString U_ICU_ENTRY_POINT_RENAME(uiter_setString)
+#define uiter_setUTF16BE U_ICU_ENTRY_POINT_RENAME(uiter_setUTF16BE)
+#define uiter_setUTF8 U_ICU_ENTRY_POINT_RENAME(uiter_setUTF8)
+#define uldn_close U_ICU_ENTRY_POINT_RENAME(uldn_close)
+#define uldn_getContext U_ICU_ENTRY_POINT_RENAME(uldn_getContext)
+#define uldn_getDialectHandling U_ICU_ENTRY_POINT_RENAME(uldn_getDialectHandling)
+#define uldn_getLocale U_ICU_ENTRY_POINT_RENAME(uldn_getLocale)
+#define uldn_keyDisplayName U_ICU_ENTRY_POINT_RENAME(uldn_keyDisplayName)
+#define uldn_keyValueDisplayName U_ICU_ENTRY_POINT_RENAME(uldn_keyValueDisplayName)
+#define uldn_languageDisplayName U_ICU_ENTRY_POINT_RENAME(uldn_languageDisplayName)
+#define uldn_localeDisplayName U_ICU_ENTRY_POINT_RENAME(uldn_localeDisplayName)
+#define uldn_open U_ICU_ENTRY_POINT_RENAME(uldn_open)
+#define uldn_openForContext U_ICU_ENTRY_POINT_RENAME(uldn_openForContext)
+#define uldn_regionDisplayName U_ICU_ENTRY_POINT_RENAME(uldn_regionDisplayName)
+#define uldn_scriptCodeDisplayName U_ICU_ENTRY_POINT_RENAME(uldn_scriptCodeDisplayName)
+#define uldn_scriptDisplayName U_ICU_ENTRY_POINT_RENAME(uldn_scriptDisplayName)
+#define uldn_variantDisplayName U_ICU_ENTRY_POINT_RENAME(uldn_variantDisplayName)
+#define ulist_addItemBeginList U_ICU_ENTRY_POINT_RENAME(ulist_addItemBeginList)
+#define ulist_addItemEndList U_ICU_ENTRY_POINT_RENAME(ulist_addItemEndList)
+#define ulist_close_keyword_values_iterator U_ICU_ENTRY_POINT_RENAME(ulist_close_keyword_values_iterator)
+#define ulist_containsString U_ICU_ENTRY_POINT_RENAME(ulist_containsString)
+#define ulist_count_keyword_values U_ICU_ENTRY_POINT_RENAME(ulist_count_keyword_values)
+#define ulist_createEmptyList U_ICU_ENTRY_POINT_RENAME(ulist_createEmptyList)
+#define ulist_deleteList U_ICU_ENTRY_POINT_RENAME(ulist_deleteList)
+#define ulist_getListFromEnum U_ICU_ENTRY_POINT_RENAME(ulist_getListFromEnum)
+#define ulist_getListSize U_ICU_ENTRY_POINT_RENAME(ulist_getListSize)
+#define ulist_getNext U_ICU_ENTRY_POINT_RENAME(ulist_getNext)
+#define ulist_next_keyword_value U_ICU_ENTRY_POINT_RENAME(ulist_next_keyword_value)
+#define ulist_removeString U_ICU_ENTRY_POINT_RENAME(ulist_removeString)
+#define ulist_resetList U_ICU_ENTRY_POINT_RENAME(ulist_resetList)
+#define ulist_reset_keyword_values_iterator U_ICU_ENTRY_POINT_RENAME(ulist_reset_keyword_values_iterator)
+#define ulistfmt_close U_ICU_ENTRY_POINT_RENAME(ulistfmt_close)
+#define ulistfmt_format U_ICU_ENTRY_POINT_RENAME(ulistfmt_format)
+#define ulistfmt_open U_ICU_ENTRY_POINT_RENAME(ulistfmt_open)
+#define uloc_acceptLanguage U_ICU_ENTRY_POINT_RENAME(uloc_acceptLanguage)
+#define uloc_acceptLanguageFromHTTP U_ICU_ENTRY_POINT_RENAME(uloc_acceptLanguageFromHTTP)
+#define uloc_addLikelySubtags U_ICU_ENTRY_POINT_RENAME(uloc_addLikelySubtags)
+#define uloc_canonicalize U_ICU_ENTRY_POINT_RENAME(uloc_canonicalize)
+#define uloc_countAvailable U_ICU_ENTRY_POINT_RENAME(uloc_countAvailable)
+#define uloc_forLanguageTag U_ICU_ENTRY_POINT_RENAME(uloc_forLanguageTag)
+#define uloc_getAvailable U_ICU_ENTRY_POINT_RENAME(uloc_getAvailable)
+#define uloc_getBaseName U_ICU_ENTRY_POINT_RENAME(uloc_getBaseName)
+#define uloc_getCharacterOrientation U_ICU_ENTRY_POINT_RENAME(uloc_getCharacterOrientation)
+#define uloc_getCountry U_ICU_ENTRY_POINT_RENAME(uloc_getCountry)
+#define uloc_getCurrentCountryID U_ICU_ENTRY_POINT_RENAME(uloc_getCurrentCountryID)
+#define uloc_getCurrentLanguageID U_ICU_ENTRY_POINT_RENAME(uloc_getCurrentLanguageID)
+#define uloc_getDefault U_ICU_ENTRY_POINT_RENAME(uloc_getDefault)
+#define uloc_getDisplayCountry U_ICU_ENTRY_POINT_RENAME(uloc_getDisplayCountry)
+#define uloc_getDisplayKeyword U_ICU_ENTRY_POINT_RENAME(uloc_getDisplayKeyword)
+#define uloc_getDisplayKeywordValue U_ICU_ENTRY_POINT_RENAME(uloc_getDisplayKeywordValue)
+#define uloc_getDisplayLanguage U_ICU_ENTRY_POINT_RENAME(uloc_getDisplayLanguage)
+#define uloc_getDisplayName U_ICU_ENTRY_POINT_RENAME(uloc_getDisplayName)
+#define uloc_getDisplayScript U_ICU_ENTRY_POINT_RENAME(uloc_getDisplayScript)
+#define uloc_getDisplayScriptInContext U_ICU_ENTRY_POINT_RENAME(uloc_getDisplayScriptInContext)
+#define uloc_getDisplayVariant U_ICU_ENTRY_POINT_RENAME(uloc_getDisplayVariant)
+#define uloc_getISO3Country U_ICU_ENTRY_POINT_RENAME(uloc_getISO3Country)
+#define uloc_getISO3Language U_ICU_ENTRY_POINT_RENAME(uloc_getISO3Language)
+#define uloc_getISOCountries U_ICU_ENTRY_POINT_RENAME(uloc_getISOCountries)
+#define uloc_getISOLanguages U_ICU_ENTRY_POINT_RENAME(uloc_getISOLanguages)
+#define uloc_getKeywordValue U_ICU_ENTRY_POINT_RENAME(uloc_getKeywordValue)
+#define uloc_getLCID U_ICU_ENTRY_POINT_RENAME(uloc_getLCID)
+#define uloc_getLanguage U_ICU_ENTRY_POINT_RENAME(uloc_getLanguage)
+#define uloc_getLineOrientation U_ICU_ENTRY_POINT_RENAME(uloc_getLineOrientation)
+#define uloc_getLocaleForLCID U_ICU_ENTRY_POINT_RENAME(uloc_getLocaleForLCID)
+#define uloc_getName U_ICU_ENTRY_POINT_RENAME(uloc_getName)
+#define uloc_getParent U_ICU_ENTRY_POINT_RENAME(uloc_getParent)
+#define uloc_getScript U_ICU_ENTRY_POINT_RENAME(uloc_getScript)
+#define uloc_getTableStringWithFallback U_ICU_ENTRY_POINT_RENAME(uloc_getTableStringWithFallback)
+#define uloc_getVariant U_ICU_ENTRY_POINT_RENAME(uloc_getVariant)
+#define uloc_isRightToLeft U_ICU_ENTRY_POINT_RENAME(uloc_isRightToLeft)
+#define uloc_minimizeSubtags U_ICU_ENTRY_POINT_RENAME(uloc_minimizeSubtags)
+#define uloc_openKeywordList U_ICU_ENTRY_POINT_RENAME(uloc_openKeywordList)
+#define uloc_openKeywords U_ICU_ENTRY_POINT_RENAME(uloc_openKeywords)
+#define uloc_setDefault U_ICU_ENTRY_POINT_RENAME(uloc_setDefault)
+#define uloc_setKeywordValue U_ICU_ENTRY_POINT_RENAME(uloc_setKeywordValue)
+#define uloc_toLanguageTag U_ICU_ENTRY_POINT_RENAME(uloc_toLanguageTag)
+#define uloc_toLegacyKey U_ICU_ENTRY_POINT_RENAME(uloc_toLegacyKey)
+#define uloc_toLegacyType U_ICU_ENTRY_POINT_RENAME(uloc_toLegacyType)
+#define uloc_toUnicodeLocaleKey U_ICU_ENTRY_POINT_RENAME(uloc_toUnicodeLocaleKey)
+#define uloc_toUnicodeLocaleType U_ICU_ENTRY_POINT_RENAME(uloc_toUnicodeLocaleType)
+#define ulocdata_close U_ICU_ENTRY_POINT_RENAME(ulocdata_close)
+#define ulocdata_getCLDRVersion U_ICU_ENTRY_POINT_RENAME(ulocdata_getCLDRVersion)
+#define ulocdata_getDelimiter U_ICU_ENTRY_POINT_RENAME(ulocdata_getDelimiter)
+#define ulocdata_getExemplarSet U_ICU_ENTRY_POINT_RENAME(ulocdata_getExemplarSet)
+#define ulocdata_getLocaleDisplayPattern U_ICU_ENTRY_POINT_RENAME(ulocdata_getLocaleDisplayPattern)
+#define ulocdata_getLocaleSeparator U_ICU_ENTRY_POINT_RENAME(ulocdata_getLocaleSeparator)
+#define ulocdata_getMeasurementSystem U_ICU_ENTRY_POINT_RENAME(ulocdata_getMeasurementSystem)
+#define ulocdata_getNoSubstitute U_ICU_ENTRY_POINT_RENAME(ulocdata_getNoSubstitute)
+#define ulocdata_getPaperSize U_ICU_ENTRY_POINT_RENAME(ulocdata_getPaperSize)
+#define ulocdata_open U_ICU_ENTRY_POINT_RENAME(ulocdata_open)
+#define ulocdata_setNoSubstitute U_ICU_ENTRY_POINT_RENAME(ulocdata_setNoSubstitute)
+#define ulocimp_getCountry U_ICU_ENTRY_POINT_RENAME(ulocimp_getCountry)
+#define ulocimp_getLanguage U_ICU_ENTRY_POINT_RENAME(ulocimp_getLanguage)
+#define ulocimp_getRegionForSupplementalData U_ICU_ENTRY_POINT_RENAME(ulocimp_getRegionForSupplementalData)
+#define ulocimp_getScript U_ICU_ENTRY_POINT_RENAME(ulocimp_getScript)
+#define ulocimp_toBcpKey U_ICU_ENTRY_POINT_RENAME(ulocimp_toBcpKey)
+#define ulocimp_toBcpType U_ICU_ENTRY_POINT_RENAME(ulocimp_toBcpType)
+#define ulocimp_toLegacyKey U_ICU_ENTRY_POINT_RENAME(ulocimp_toLegacyKey)
+#define ulocimp_toLegacyType U_ICU_ENTRY_POINT_RENAME(ulocimp_toLegacyType)
+#define ultag_isUnicodeLocaleKey U_ICU_ENTRY_POINT_RENAME(ultag_isUnicodeLocaleKey)
+#define ultag_isUnicodeLocaleType U_ICU_ENTRY_POINT_RENAME(ultag_isUnicodeLocaleType)
+#define umsg_applyPattern U_ICU_ENTRY_POINT_RENAME(umsg_applyPattern)
+#define umsg_autoQuoteApostrophe U_ICU_ENTRY_POINT_RENAME(umsg_autoQuoteApostrophe)
+#define umsg_clone U_ICU_ENTRY_POINT_RENAME(umsg_clone)
+#define umsg_close U_ICU_ENTRY_POINT_RENAME(umsg_close)
+#define umsg_format U_ICU_ENTRY_POINT_RENAME(umsg_format)
+#define umsg_getLocale U_ICU_ENTRY_POINT_RENAME(umsg_getLocale)
+#define umsg_open U_ICU_ENTRY_POINT_RENAME(umsg_open)
+#define umsg_parse U_ICU_ENTRY_POINT_RENAME(umsg_parse)
+#define umsg_setLocale U_ICU_ENTRY_POINT_RENAME(umsg_setLocale)
+#define umsg_toPattern U_ICU_ENTRY_POINT_RENAME(umsg_toPattern)
+#define umsg_vformat U_ICU_ENTRY_POINT_RENAME(umsg_vformat)
+#define umsg_vparse U_ICU_ENTRY_POINT_RENAME(umsg_vparse)
+#define umtx_condBroadcast U_ICU_ENTRY_POINT_RENAME(umtx_condBroadcast)
+#define umtx_condSignal U_ICU_ENTRY_POINT_RENAME(umtx_condSignal)
+#define umtx_condWait U_ICU_ENTRY_POINT_RENAME(umtx_condWait)
+#define umtx_lock U_ICU_ENTRY_POINT_RENAME(umtx_lock)
+#define umtx_unlock U_ICU_ENTRY_POINT_RENAME(umtx_unlock)
+#define uniset_getUnicode32Instance U_ICU_ENTRY_POINT_RENAME(uniset_getUnicode32Instance)
+#define unorm2_append U_ICU_ENTRY_POINT_RENAME(unorm2_append)
+#define unorm2_close U_ICU_ENTRY_POINT_RENAME(unorm2_close)
+#define unorm2_composePair U_ICU_ENTRY_POINT_RENAME(unorm2_composePair)
+#define unorm2_getCombiningClass U_ICU_ENTRY_POINT_RENAME(unorm2_getCombiningClass)
+#define unorm2_getDecomposition U_ICU_ENTRY_POINT_RENAME(unorm2_getDecomposition)
+#define unorm2_getInstance U_ICU_ENTRY_POINT_RENAME(unorm2_getInstance)
+#define unorm2_getNFCInstance U_ICU_ENTRY_POINT_RENAME(unorm2_getNFCInstance)
+#define unorm2_getNFDInstance U_ICU_ENTRY_POINT_RENAME(unorm2_getNFDInstance)
+#define unorm2_getNFKCCasefoldInstance U_ICU_ENTRY_POINT_RENAME(unorm2_getNFKCCasefoldInstance)
+#define unorm2_getNFKCInstance U_ICU_ENTRY_POINT_RENAME(unorm2_getNFKCInstance)
+#define unorm2_getNFKDInstance U_ICU_ENTRY_POINT_RENAME(unorm2_getNFKDInstance)
+#define unorm2_getRawDecomposition U_ICU_ENTRY_POINT_RENAME(unorm2_getRawDecomposition)
+#define unorm2_hasBoundaryAfter U_ICU_ENTRY_POINT_RENAME(unorm2_hasBoundaryAfter)
+#define unorm2_hasBoundaryBefore U_ICU_ENTRY_POINT_RENAME(unorm2_hasBoundaryBefore)
+#define unorm2_isInert U_ICU_ENTRY_POINT_RENAME(unorm2_isInert)
+#define unorm2_isNormalized U_ICU_ENTRY_POINT_RENAME(unorm2_isNormalized)
+#define unorm2_normalize U_ICU_ENTRY_POINT_RENAME(unorm2_normalize)
+#define unorm2_normalizeSecondAndAppend U_ICU_ENTRY_POINT_RENAME(unorm2_normalizeSecondAndAppend)
+#define unorm2_openFiltered U_ICU_ENTRY_POINT_RENAME(unorm2_openFiltered)
+#define unorm2_quickCheck U_ICU_ENTRY_POINT_RENAME(unorm2_quickCheck)
+#define unorm2_spanQuickCheckYes U_ICU_ENTRY_POINT_RENAME(unorm2_spanQuickCheckYes)
+#define unorm2_swap U_ICU_ENTRY_POINT_RENAME(unorm2_swap)
+#define unorm_compare U_ICU_ENTRY_POINT_RENAME(unorm_compare)
+#define unorm_concatenate U_ICU_ENTRY_POINT_RENAME(unorm_concatenate)
+#define unorm_getFCD16 U_ICU_ENTRY_POINT_RENAME(unorm_getFCD16)
+#define unorm_getQuickCheck U_ICU_ENTRY_POINT_RENAME(unorm_getQuickCheck)
+#define unorm_isNormalized U_ICU_ENTRY_POINT_RENAME(unorm_isNormalized)
+#define unorm_isNormalizedWithOptions U_ICU_ENTRY_POINT_RENAME(unorm_isNormalizedWithOptions)
+#define unorm_next U_ICU_ENTRY_POINT_RENAME(unorm_next)
+#define unorm_normalize U_ICU_ENTRY_POINT_RENAME(unorm_normalize)
+#define unorm_previous U_ICU_ENTRY_POINT_RENAME(unorm_previous)
+#define unorm_quickCheck U_ICU_ENTRY_POINT_RENAME(unorm_quickCheck)
+#define unorm_quickCheckWithOptions U_ICU_ENTRY_POINT_RENAME(unorm_quickCheckWithOptions)
+#define unum_applyPattern U_ICU_ENTRY_POINT_RENAME(unum_applyPattern)
+#define unum_clone U_ICU_ENTRY_POINT_RENAME(unum_clone)
+#define unum_close U_ICU_ENTRY_POINT_RENAME(unum_close)
+#define unum_countAvailable U_ICU_ENTRY_POINT_RENAME(unum_countAvailable)
+#define unum_format U_ICU_ENTRY_POINT_RENAME(unum_format)
+#define unum_formatDecimal U_ICU_ENTRY_POINT_RENAME(unum_formatDecimal)
+#define unum_formatDouble U_ICU_ENTRY_POINT_RENAME(unum_formatDouble)
+#define unum_formatDoubleCurrency U_ICU_ENTRY_POINT_RENAME(unum_formatDoubleCurrency)
+#define unum_formatDoubleForFields U_ICU_ENTRY_POINT_RENAME(unum_formatDoubleForFields)
+#define unum_formatInt64 U_ICU_ENTRY_POINT_RENAME(unum_formatInt64)
+#define unum_formatUFormattable U_ICU_ENTRY_POINT_RENAME(unum_formatUFormattable)
+#define unum_getAttribute U_ICU_ENTRY_POINT_RENAME(unum_getAttribute)
+#define unum_getAvailable U_ICU_ENTRY_POINT_RENAME(unum_getAvailable)
+#define unum_getContext U_ICU_ENTRY_POINT_RENAME(unum_getContext)
+#define unum_getDoubleAttribute U_ICU_ENTRY_POINT_RENAME(unum_getDoubleAttribute)
+#define unum_getLocaleByType U_ICU_ENTRY_POINT_RENAME(unum_getLocaleByType)
+#define unum_getSymbol U_ICU_ENTRY_POINT_RENAME(unum_getSymbol)
+#define unum_getTextAttribute U_ICU_ENTRY_POINT_RENAME(unum_getTextAttribute)
+#define unum_open U_ICU_ENTRY_POINT_RENAME(unum_open)
+#define unum_parse U_ICU_ENTRY_POINT_RENAME(unum_parse)
+#define unum_parseDecimal U_ICU_ENTRY_POINT_RENAME(unum_parseDecimal)
+#define unum_parseDouble U_ICU_ENTRY_POINT_RENAME(unum_parseDouble)
+#define unum_parseDoubleCurrency U_ICU_ENTRY_POINT_RENAME(unum_parseDoubleCurrency)
+#define unum_parseInt64 U_ICU_ENTRY_POINT_RENAME(unum_parseInt64)
+#define unum_parseToUFormattable U_ICU_ENTRY_POINT_RENAME(unum_parseToUFormattable)
+#define unum_setAttribute U_ICU_ENTRY_POINT_RENAME(unum_setAttribute)
+#define unum_setContext U_ICU_ENTRY_POINT_RENAME(unum_setContext)
+#define unum_setDoubleAttribute U_ICU_ENTRY_POINT_RENAME(unum_setDoubleAttribute)
+#define unum_setSymbol U_ICU_ENTRY_POINT_RENAME(unum_setSymbol)
+#define unum_setTextAttribute U_ICU_ENTRY_POINT_RENAME(unum_setTextAttribute)
+#define unum_toPattern U_ICU_ENTRY_POINT_RENAME(unum_toPattern)
+#define unumsys_close U_ICU_ENTRY_POINT_RENAME(unumsys_close)
+#define unumsys_getDescription U_ICU_ENTRY_POINT_RENAME(unumsys_getDescription)
+#define unumsys_getName U_ICU_ENTRY_POINT_RENAME(unumsys_getName)
+#define unumsys_getRadix U_ICU_ENTRY_POINT_RENAME(unumsys_getRadix)
+#define unumsys_isAlgorithmic U_ICU_ENTRY_POINT_RENAME(unumsys_isAlgorithmic)
+#define unumsys_open U_ICU_ENTRY_POINT_RENAME(unumsys_open)
+#define unumsys_openAvailableNames U_ICU_ENTRY_POINT_RENAME(unumsys_openAvailableNames)
+#define unumsys_openByName U_ICU_ENTRY_POINT_RENAME(unumsys_openByName)
+#define uplrules_close U_ICU_ENTRY_POINT_RENAME(uplrules_close)
+#define uplrules_getKeywords U_ICU_ENTRY_POINT_RENAME(uplrules_getKeywords)
+#define uplrules_open U_ICU_ENTRY_POINT_RENAME(uplrules_open)
+#define uplrules_openForType U_ICU_ENTRY_POINT_RENAME(uplrules_openForType)
+#define uplrules_select U_ICU_ENTRY_POINT_RENAME(uplrules_select)
+#define uplrules_selectWithFormat U_ICU_ENTRY_POINT_RENAME(uplrules_selectWithFormat)
+#define uplug_closeLibrary U_ICU_ENTRY_POINT_RENAME(uplug_closeLibrary)
+#define uplug_findLibrary U_ICU_ENTRY_POINT_RENAME(uplug_findLibrary)
+#define uplug_getConfiguration U_ICU_ENTRY_POINT_RENAME(uplug_getConfiguration)
+#define uplug_getContext U_ICU_ENTRY_POINT_RENAME(uplug_getContext)
+#define uplug_getCurrentLevel U_ICU_ENTRY_POINT_RENAME(uplug_getCurrentLevel)
+#define uplug_getLibrary U_ICU_ENTRY_POINT_RENAME(uplug_getLibrary)
+#define uplug_getLibraryName U_ICU_ENTRY_POINT_RENAME(uplug_getLibraryName)
+#define uplug_getPlugInternal U_ICU_ENTRY_POINT_RENAME(uplug_getPlugInternal)
+#define uplug_getPlugLevel U_ICU_ENTRY_POINT_RENAME(uplug_getPlugLevel)
+#define uplug_getPlugLoadStatus U_ICU_ENTRY_POINT_RENAME(uplug_getPlugLoadStatus)
+#define uplug_getPlugName U_ICU_ENTRY_POINT_RENAME(uplug_getPlugName)
+#define uplug_getPluginFile U_ICU_ENTRY_POINT_RENAME(uplug_getPluginFile)
+#define uplug_getSymbolName U_ICU_ENTRY_POINT_RENAME(uplug_getSymbolName)
+#define uplug_init U_ICU_ENTRY_POINT_RENAME(uplug_init)
+#define uplug_loadPlugFromEntrypoint U_ICU_ENTRY_POINT_RENAME(uplug_loadPlugFromEntrypoint)
+#define uplug_loadPlugFromLibrary U_ICU_ENTRY_POINT_RENAME(uplug_loadPlugFromLibrary)
+#define uplug_nextPlug U_ICU_ENTRY_POINT_RENAME(uplug_nextPlug)
+#define uplug_openLibrary U_ICU_ENTRY_POINT_RENAME(uplug_openLibrary)
+#define uplug_removePlug U_ICU_ENTRY_POINT_RENAME(uplug_removePlug)
+#define uplug_setContext U_ICU_ENTRY_POINT_RENAME(uplug_setContext)
+#define uplug_setPlugLevel U_ICU_ENTRY_POINT_RENAME(uplug_setPlugLevel)
+#define uplug_setPlugName U_ICU_ENTRY_POINT_RENAME(uplug_setPlugName)
+#define uplug_setPlugNoUnload U_ICU_ENTRY_POINT_RENAME(uplug_setPlugNoUnload)
+#define uprops_getSource U_ICU_ENTRY_POINT_RENAME(uprops_getSource)
+#define upropsvec_addPropertyStarts U_ICU_ENTRY_POINT_RENAME(upropsvec_addPropertyStarts)
+#define uprv_aestrncpy U_ICU_ENTRY_POINT_RENAME(uprv_aestrncpy)
+#define uprv_asciiFromEbcdic U_ICU_ENTRY_POINT_RENAME(uprv_asciiFromEbcdic)
+#define uprv_asciitolower U_ICU_ENTRY_POINT_RENAME(uprv_asciitolower)
+#define uprv_calloc U_ICU_ENTRY_POINT_RENAME(uprv_calloc)
+#define uprv_ceil U_ICU_ENTRY_POINT_RENAME(uprv_ceil)
+#define uprv_compareASCIIPropertyNames U_ICU_ENTRY_POINT_RENAME(uprv_compareASCIIPropertyNames)
+#define uprv_compareEBCDICPropertyNames U_ICU_ENTRY_POINT_RENAME(uprv_compareEBCDICPropertyNames)
+#define uprv_compareInvAscii U_ICU_ENTRY_POINT_RENAME(uprv_compareInvAscii)
+#define uprv_compareInvEbcdic U_ICU_ENTRY_POINT_RENAME(uprv_compareInvEbcdic)
+#define uprv_compareInvEbcdicAsAscii U_ICU_ENTRY_POINT_RENAME(uprv_compareInvEbcdicAsAscii)
+#define uprv_convertToLCID U_ICU_ENTRY_POINT_RENAME(uprv_convertToLCID)
+#define uprv_convertToLCIDPlatform U_ICU_ENTRY_POINT_RENAME(uprv_convertToLCIDPlatform)
+#define uprv_convertToPosix U_ICU_ENTRY_POINT_RENAME(uprv_convertToPosix)
+#define uprv_copyAscii U_ICU_ENTRY_POINT_RENAME(uprv_copyAscii)
+#define uprv_copyEbcdic U_ICU_ENTRY_POINT_RENAME(uprv_copyEbcdic)
+#define uprv_decContextClearStatus U_ICU_ENTRY_POINT_RENAME(uprv_decContextClearStatus)
+#define uprv_decContextDefault U_ICU_ENTRY_POINT_RENAME(uprv_decContextDefault)
+#define uprv_decContextGetRounding U_ICU_ENTRY_POINT_RENAME(uprv_decContextGetRounding)
+#define uprv_decContextGetStatus U_ICU_ENTRY_POINT_RENAME(uprv_decContextGetStatus)
+#define uprv_decContextRestoreStatus U_ICU_ENTRY_POINT_RENAME(uprv_decContextRestoreStatus)
+#define uprv_decContextSaveStatus U_ICU_ENTRY_POINT_RENAME(uprv_decContextSaveStatus)
+#define uprv_decContextSetRounding U_ICU_ENTRY_POINT_RENAME(uprv_decContextSetRounding)
+#define uprv_decContextSetStatus U_ICU_ENTRY_POINT_RENAME(uprv_decContextSetStatus)
+#define uprv_decContextSetStatusFromString U_ICU_ENTRY_POINT_RENAME(uprv_decContextSetStatusFromString)
+#define uprv_decContextSetStatusFromStringQuiet U_ICU_ENTRY_POINT_RENAME(uprv_decContextSetStatusFromStringQuiet)
+#define uprv_decContextSetStatusQuiet U_ICU_ENTRY_POINT_RENAME(uprv_decContextSetStatusQuiet)
+#define uprv_decContextStatusToString U_ICU_ENTRY_POINT_RENAME(uprv_decContextStatusToString)
+#define uprv_decContextTestSavedStatus U_ICU_ENTRY_POINT_RENAME(uprv_decContextTestSavedStatus)
+#define uprv_decContextTestStatus U_ICU_ENTRY_POINT_RENAME(uprv_decContextTestStatus)
+#define uprv_decContextZeroStatus U_ICU_ENTRY_POINT_RENAME(uprv_decContextZeroStatus)
+#define uprv_decNumberAbs U_ICU_ENTRY_POINT_RENAME(uprv_decNumberAbs)
+#define uprv_decNumberAdd U_ICU_ENTRY_POINT_RENAME(uprv_decNumberAdd)
+#define uprv_decNumberAnd U_ICU_ENTRY_POINT_RENAME(uprv_decNumberAnd)
+#define uprv_decNumberClass U_ICU_ENTRY_POINT_RENAME(uprv_decNumberClass)
+#define uprv_decNumberClassToString U_ICU_ENTRY_POINT_RENAME(uprv_decNumberClassToString)
+#define uprv_decNumberCompare U_ICU_ENTRY_POINT_RENAME(uprv_decNumberCompare)
+#define uprv_decNumberCompareSignal U_ICU_ENTRY_POINT_RENAME(uprv_decNumberCompareSignal)
+#define uprv_decNumberCompareTotal U_ICU_ENTRY_POINT_RENAME(uprv_decNumberCompareTotal)
+#define uprv_decNumberCompareTotalMag U_ICU_ENTRY_POINT_RENAME(uprv_decNumberCompareTotalMag)
+#define uprv_decNumberCopy U_ICU_ENTRY_POINT_RENAME(uprv_decNumberCopy)
+#define uprv_decNumberCopyAbs U_ICU_ENTRY_POINT_RENAME(uprv_decNumberCopyAbs)
+#define uprv_decNumberCopyNegate U_ICU_ENTRY_POINT_RENAME(uprv_decNumberCopyNegate)
+#define uprv_decNumberCopySign U_ICU_ENTRY_POINT_RENAME(uprv_decNumberCopySign)
+#define uprv_decNumberDivide U_ICU_ENTRY_POINT_RENAME(uprv_decNumberDivide)
+#define uprv_decNumberDivideInteger U_ICU_ENTRY_POINT_RENAME(uprv_decNumberDivideInteger)
+#define uprv_decNumberExp U_ICU_ENTRY_POINT_RENAME(uprv_decNumberExp)
+#define uprv_decNumberFMA U_ICU_ENTRY_POINT_RENAME(uprv_decNumberFMA)
+#define uprv_decNumberFromInt32 U_ICU_ENTRY_POINT_RENAME(uprv_decNumberFromInt32)
+#define uprv_decNumberFromString U_ICU_ENTRY_POINT_RENAME(uprv_decNumberFromString)
+#define uprv_decNumberFromUInt32 U_ICU_ENTRY_POINT_RENAME(uprv_decNumberFromUInt32)
+#define uprv_decNumberGetBCD U_ICU_ENTRY_POINT_RENAME(uprv_decNumberGetBCD)
+#define uprv_decNumberInvert U_ICU_ENTRY_POINT_RENAME(uprv_decNumberInvert)
+#define uprv_decNumberIsNormal U_ICU_ENTRY_POINT_RENAME(uprv_decNumberIsNormal)
+#define uprv_decNumberIsSubnormal U_ICU_ENTRY_POINT_RENAME(uprv_decNumberIsSubnormal)
+#define uprv_decNumberLn U_ICU_ENTRY_POINT_RENAME(uprv_decNumberLn)
+#define uprv_decNumberLog10 U_ICU_ENTRY_POINT_RENAME(uprv_decNumberLog10)
+#define uprv_decNumberLogB U_ICU_ENTRY_POINT_RENAME(uprv_decNumberLogB)
+#define uprv_decNumberMax U_ICU_ENTRY_POINT_RENAME(uprv_decNumberMax)
+#define uprv_decNumberMaxMag U_ICU_ENTRY_POINT_RENAME(uprv_decNumberMaxMag)
+#define uprv_decNumberMin U_ICU_ENTRY_POINT_RENAME(uprv_decNumberMin)
+#define uprv_decNumberMinMag U_ICU_ENTRY_POINT_RENAME(uprv_decNumberMinMag)
+#define uprv_decNumberMinus U_ICU_ENTRY_POINT_RENAME(uprv_decNumberMinus)
+#define uprv_decNumberMultiply U_ICU_ENTRY_POINT_RENAME(uprv_decNumberMultiply)
+#define uprv_decNumberNextMinus U_ICU_ENTRY_POINT_RENAME(uprv_decNumberNextMinus)
+#define uprv_decNumberNextPlus U_ICU_ENTRY_POINT_RENAME(uprv_decNumberNextPlus)
+#define uprv_decNumberNextToward U_ICU_ENTRY_POINT_RENAME(uprv_decNumberNextToward)
+#define uprv_decNumberNormalize U_ICU_ENTRY_POINT_RENAME(uprv_decNumberNormalize)
+#define uprv_decNumberOr U_ICU_ENTRY_POINT_RENAME(uprv_decNumberOr)
+#define uprv_decNumberPlus U_ICU_ENTRY_POINT_RENAME(uprv_decNumberPlus)
+#define uprv_decNumberPower U_ICU_ENTRY_POINT_RENAME(uprv_decNumberPower)
+#define uprv_decNumberQuantize U_ICU_ENTRY_POINT_RENAME(uprv_decNumberQuantize)
+#define uprv_decNumberReduce U_ICU_ENTRY_POINT_RENAME(uprv_decNumberReduce)
+#define uprv_decNumberRemainder U_ICU_ENTRY_POINT_RENAME(uprv_decNumberRemainder)
+#define uprv_decNumberRemainderNear U_ICU_ENTRY_POINT_RENAME(uprv_decNumberRemainderNear)
+#define uprv_decNumberRescale U_ICU_ENTRY_POINT_RENAME(uprv_decNumberRescale)
+#define uprv_decNumberRotate U_ICU_ENTRY_POINT_RENAME(uprv_decNumberRotate)
+#define uprv_decNumberSameQuantum U_ICU_ENTRY_POINT_RENAME(uprv_decNumberSameQuantum)
+#define uprv_decNumberScaleB U_ICU_ENTRY_POINT_RENAME(uprv_decNumberScaleB)
+#define uprv_decNumberSetBCD U_ICU_ENTRY_POINT_RENAME(uprv_decNumberSetBCD)
+#define uprv_decNumberShift U_ICU_ENTRY_POINT_RENAME(uprv_decNumberShift)
+#define uprv_decNumberSquareRoot U_ICU_ENTRY_POINT_RENAME(uprv_decNumberSquareRoot)
+#define uprv_decNumberSubtract U_ICU_ENTRY_POINT_RENAME(uprv_decNumberSubtract)
+#define uprv_decNumberToEngString U_ICU_ENTRY_POINT_RENAME(uprv_decNumberToEngString)
+#define uprv_decNumberToInt32 U_ICU_ENTRY_POINT_RENAME(uprv_decNumberToInt32)
+#define uprv_decNumberToIntegralExact U_ICU_ENTRY_POINT_RENAME(uprv_decNumberToIntegralExact)
+#define uprv_decNumberToIntegralValue U_ICU_ENTRY_POINT_RENAME(uprv_decNumberToIntegralValue)
+#define uprv_decNumberToString U_ICU_ENTRY_POINT_RENAME(uprv_decNumberToString)
+#define uprv_decNumberToUInt32 U_ICU_ENTRY_POINT_RENAME(uprv_decNumberToUInt32)
+#define uprv_decNumberTrim U_ICU_ENTRY_POINT_RENAME(uprv_decNumberTrim)
+#define uprv_decNumberVersion U_ICU_ENTRY_POINT_RENAME(uprv_decNumberVersion)
+#define uprv_decNumberXor U_ICU_ENTRY_POINT_RENAME(uprv_decNumberXor)
+#define uprv_decNumberZero U_ICU_ENTRY_POINT_RENAME(uprv_decNumberZero)
+#define uprv_deleteConditionalCE32 U_ICU_ENTRY_POINT_RENAME(uprv_deleteConditionalCE32)
+#define uprv_deleteUObject U_ICU_ENTRY_POINT_RENAME(uprv_deleteUObject)
+#define uprv_dl_close U_ICU_ENTRY_POINT_RENAME(uprv_dl_close)
+#define uprv_dl_open U_ICU_ENTRY_POINT_RENAME(uprv_dl_open)
+#define uprv_dlsym_func U_ICU_ENTRY_POINT_RENAME(uprv_dlsym_func)
+#define uprv_eastrncpy U_ICU_ENTRY_POINT_RENAME(uprv_eastrncpy)
+#define uprv_ebcdicFromAscii U_ICU_ENTRY_POINT_RENAME(uprv_ebcdicFromAscii)
+#define uprv_ebcdicToLowercaseAscii U_ICU_ENTRY_POINT_RENAME(uprv_ebcdicToLowercaseAscii)
+#define uprv_ebcdictolower U_ICU_ENTRY_POINT_RENAME(uprv_ebcdictolower)
+#define uprv_fabs U_ICU_ENTRY_POINT_RENAME(uprv_fabs)
+#define uprv_floor U_ICU_ENTRY_POINT_RENAME(uprv_floor)
+#define uprv_fmax U_ICU_ENTRY_POINT_RENAME(uprv_fmax)
+#define uprv_fmin U_ICU_ENTRY_POINT_RENAME(uprv_fmin)
+#define uprv_fmod U_ICU_ENTRY_POINT_RENAME(uprv_fmod)
+#define uprv_free U_ICU_ENTRY_POINT_RENAME(uprv_free)
+#define uprv_getCharNameCharacters U_ICU_ENTRY_POINT_RENAME(uprv_getCharNameCharacters)
+#define uprv_getDefaultCodepage U_ICU_ENTRY_POINT_RENAME(uprv_getDefaultCodepage)
+#define uprv_getDefaultLocaleID U_ICU_ENTRY_POINT_RENAME(uprv_getDefaultLocaleID)
+#define uprv_getInfinity U_ICU_ENTRY_POINT_RENAME(uprv_getInfinity)
+#define uprv_getMaxCharNameLength U_ICU_ENTRY_POINT_RENAME(uprv_getMaxCharNameLength)
+#define uprv_getMaxValues U_ICU_ENTRY_POINT_RENAME(uprv_getMaxValues)
+#define uprv_getNaN U_ICU_ENTRY_POINT_RENAME(uprv_getNaN)
+#define uprv_getRawUTCtime U_ICU_ENTRY_POINT_RENAME(uprv_getRawUTCtime)
+#define uprv_getStaticCurrencyName U_ICU_ENTRY_POINT_RENAME(uprv_getStaticCurrencyName)
+#define uprv_getUTCtime U_ICU_ENTRY_POINT_RENAME(uprv_getUTCtime)
+#define uprv_int32Comparator U_ICU_ENTRY_POINT_RENAME(uprv_int32Comparator)
+#define uprv_isASCIILetter U_ICU_ENTRY_POINT_RENAME(uprv_isASCIILetter)
+#define uprv_isInfinite U_ICU_ENTRY_POINT_RENAME(uprv_isInfinite)
+#define uprv_isInvariantString U_ICU_ENTRY_POINT_RENAME(uprv_isInvariantString)
+#define uprv_isInvariantUString U_ICU_ENTRY_POINT_RENAME(uprv_isInvariantUString)
+#define uprv_isNaN U_ICU_ENTRY_POINT_RENAME(uprv_isNaN)
+#define uprv_isNegativeInfinity U_ICU_ENTRY_POINT_RENAME(uprv_isNegativeInfinity)
+#define uprv_isPositiveInfinity U_ICU_ENTRY_POINT_RENAME(uprv_isPositiveInfinity)
+#define uprv_itou U_ICU_ENTRY_POINT_RENAME(uprv_itou)
+#define uprv_log U_ICU_ENTRY_POINT_RENAME(uprv_log)
+#define uprv_malloc U_ICU_ENTRY_POINT_RENAME(uprv_malloc)
+#define uprv_mapFile U_ICU_ENTRY_POINT_RENAME(uprv_mapFile)
+#define uprv_max U_ICU_ENTRY_POINT_RENAME(uprv_max)
+#define uprv_maxMantissa U_ICU_ENTRY_POINT_RENAME(uprv_maxMantissa)
+#define uprv_maximumPtr U_ICU_ENTRY_POINT_RENAME(uprv_maximumPtr)
+#define uprv_min U_ICU_ENTRY_POINT_RENAME(uprv_min)
+#define uprv_modf U_ICU_ENTRY_POINT_RENAME(uprv_modf)
+#define uprv_parseCurrency U_ICU_ENTRY_POINT_RENAME(uprv_parseCurrency)
+#define uprv_pathIsAbsolute U_ICU_ENTRY_POINT_RENAME(uprv_pathIsAbsolute)
+#define uprv_pow U_ICU_ENTRY_POINT_RENAME(uprv_pow)
+#define uprv_pow10 U_ICU_ENTRY_POINT_RENAME(uprv_pow10)
+#define uprv_realloc U_ICU_ENTRY_POINT_RENAME(uprv_realloc)
+#define uprv_round U_ICU_ENTRY_POINT_RENAME(uprv_round)
+#define uprv_sortArray U_ICU_ENTRY_POINT_RENAME(uprv_sortArray)
+#define uprv_stableBinarySearch U_ICU_ENTRY_POINT_RENAME(uprv_stableBinarySearch)
+#define uprv_strCompare U_ICU_ENTRY_POINT_RENAME(uprv_strCompare)
+#define uprv_strdup U_ICU_ENTRY_POINT_RENAME(uprv_strdup)
+#define uprv_stricmp U_ICU_ENTRY_POINT_RENAME(uprv_stricmp)
+#define uprv_strndup U_ICU_ENTRY_POINT_RENAME(uprv_strndup)
+#define uprv_strnicmp U_ICU_ENTRY_POINT_RENAME(uprv_strnicmp)
+#define uprv_syntaxError U_ICU_ENTRY_POINT_RENAME(uprv_syntaxError)
+#define uprv_timezone U_ICU_ENTRY_POINT_RENAME(uprv_timezone)
+#define uprv_toupper U_ICU_ENTRY_POINT_RENAME(uprv_toupper)
+#define uprv_trunc U_ICU_ENTRY_POINT_RENAME(uprv_trunc)
+#define uprv_tzname U_ICU_ENTRY_POINT_RENAME(uprv_tzname)
+#define uprv_tzname_clear_cache U_ICU_ENTRY_POINT_RENAME(uprv_tzname_clear_cache)
+#define uprv_tzset U_ICU_ENTRY_POINT_RENAME(uprv_tzset)
+#define uprv_uint16Comparator U_ICU_ENTRY_POINT_RENAME(uprv_uint16Comparator)
+#define uprv_uint32Comparator U_ICU_ENTRY_POINT_RENAME(uprv_uint32Comparator)
+#define uprv_unmapFile U_ICU_ENTRY_POINT_RENAME(uprv_unmapFile)
+#define upvec_cloneArray U_ICU_ENTRY_POINT_RENAME(upvec_cloneArray)
+#define upvec_close U_ICU_ENTRY_POINT_RENAME(upvec_close)
+#define upvec_compact U_ICU_ENTRY_POINT_RENAME(upvec_compact)
+#define upvec_compactToUTrie2Handler U_ICU_ENTRY_POINT_RENAME(upvec_compactToUTrie2Handler)
+#define upvec_compactToUTrie2WithRowIndexes U_ICU_ENTRY_POINT_RENAME(upvec_compactToUTrie2WithRowIndexes)
+#define upvec_getArray U_ICU_ENTRY_POINT_RENAME(upvec_getArray)
+#define upvec_getRow U_ICU_ENTRY_POINT_RENAME(upvec_getRow)
+#define upvec_getValue U_ICU_ENTRY_POINT_RENAME(upvec_getValue)
+#define upvec_open U_ICU_ENTRY_POINT_RENAME(upvec_open)
+#define upvec_setValue U_ICU_ENTRY_POINT_RENAME(upvec_setValue)
+#define uregex_appendReplacement U_ICU_ENTRY_POINT_RENAME(uregex_appendReplacement)
+#define uregex_appendReplacementUText U_ICU_ENTRY_POINT_RENAME(uregex_appendReplacementUText)
+#define uregex_appendTail U_ICU_ENTRY_POINT_RENAME(uregex_appendTail)
+#define uregex_appendTailUText U_ICU_ENTRY_POINT_RENAME(uregex_appendTailUText)
+#define uregex_clone U_ICU_ENTRY_POINT_RENAME(uregex_clone)
+#define uregex_close U_ICU_ENTRY_POINT_RENAME(uregex_close)
+#define uregex_end U_ICU_ENTRY_POINT_RENAME(uregex_end)
+#define uregex_end64 U_ICU_ENTRY_POINT_RENAME(uregex_end64)
+#define uregex_find U_ICU_ENTRY_POINT_RENAME(uregex_find)
+#define uregex_find64 U_ICU_ENTRY_POINT_RENAME(uregex_find64)
+#define uregex_findNext U_ICU_ENTRY_POINT_RENAME(uregex_findNext)
+#define uregex_flags U_ICU_ENTRY_POINT_RENAME(uregex_flags)
+#define uregex_getFindProgressCallback U_ICU_ENTRY_POINT_RENAME(uregex_getFindProgressCallback)
+#define uregex_getMatchCallback U_ICU_ENTRY_POINT_RENAME(uregex_getMatchCallback)
+#define uregex_getStackLimit U_ICU_ENTRY_POINT_RENAME(uregex_getStackLimit)
+#define uregex_getText U_ICU_ENTRY_POINT_RENAME(uregex_getText)
+#define uregex_getTimeLimit U_ICU_ENTRY_POINT_RENAME(uregex_getTimeLimit)
+#define uregex_getUText U_ICU_ENTRY_POINT_RENAME(uregex_getUText)
+#define uregex_group U_ICU_ENTRY_POINT_RENAME(uregex_group)
+#define uregex_groupCount U_ICU_ENTRY_POINT_RENAME(uregex_groupCount)
+#define uregex_groupNumberFromCName U_ICU_ENTRY_POINT_RENAME(uregex_groupNumberFromCName)
+#define uregex_groupNumberFromName U_ICU_ENTRY_POINT_RENAME(uregex_groupNumberFromName)
+#define uregex_groupUText U_ICU_ENTRY_POINT_RENAME(uregex_groupUText)
+#define uregex_hasAnchoringBounds U_ICU_ENTRY_POINT_RENAME(uregex_hasAnchoringBounds)
+#define uregex_hasTransparentBounds U_ICU_ENTRY_POINT_RENAME(uregex_hasTransparentBounds)
+#define uregex_hitEnd U_ICU_ENTRY_POINT_RENAME(uregex_hitEnd)
+#define uregex_lookingAt U_ICU_ENTRY_POINT_RENAME(uregex_lookingAt)
+#define uregex_lookingAt64 U_ICU_ENTRY_POINT_RENAME(uregex_lookingAt64)
+#define uregex_matches U_ICU_ENTRY_POINT_RENAME(uregex_matches)
+#define uregex_matches64 U_ICU_ENTRY_POINT_RENAME(uregex_matches64)
+#define uregex_open U_ICU_ENTRY_POINT_RENAME(uregex_open)
+#define uregex_openC U_ICU_ENTRY_POINT_RENAME(uregex_openC)
+#define uregex_openUText U_ICU_ENTRY_POINT_RENAME(uregex_openUText)
+#define uregex_pattern U_ICU_ENTRY_POINT_RENAME(uregex_pattern)
+#define uregex_patternUText U_ICU_ENTRY_POINT_RENAME(uregex_patternUText)
+#define uregex_refreshUText U_ICU_ENTRY_POINT_RENAME(uregex_refreshUText)
+#define uregex_regionEnd U_ICU_ENTRY_POINT_RENAME(uregex_regionEnd)
+#define uregex_regionEnd64 U_ICU_ENTRY_POINT_RENAME(uregex_regionEnd64)
+#define uregex_regionStart U_ICU_ENTRY_POINT_RENAME(uregex_regionStart)
+#define uregex_regionStart64 U_ICU_ENTRY_POINT_RENAME(uregex_regionStart64)
+#define uregex_replaceAll U_ICU_ENTRY_POINT_RENAME(uregex_replaceAll)
+#define uregex_replaceAllUText U_ICU_ENTRY_POINT_RENAME(uregex_replaceAllUText)
+#define uregex_replaceFirst U_ICU_ENTRY_POINT_RENAME(uregex_replaceFirst)
+#define uregex_replaceFirstUText U_ICU_ENTRY_POINT_RENAME(uregex_replaceFirstUText)
+#define uregex_requireEnd U_ICU_ENTRY_POINT_RENAME(uregex_requireEnd)
+#define uregex_reset U_ICU_ENTRY_POINT_RENAME(uregex_reset)
+#define uregex_reset64 U_ICU_ENTRY_POINT_RENAME(uregex_reset64)
+#define uregex_setFindProgressCallback U_ICU_ENTRY_POINT_RENAME(uregex_setFindProgressCallback)
+#define uregex_setMatchCallback U_ICU_ENTRY_POINT_RENAME(uregex_setMatchCallback)
+#define uregex_setRegion U_ICU_ENTRY_POINT_RENAME(uregex_setRegion)
+#define uregex_setRegion64 U_ICU_ENTRY_POINT_RENAME(uregex_setRegion64)
+#define uregex_setRegionAndStart U_ICU_ENTRY_POINT_RENAME(uregex_setRegionAndStart)
+#define uregex_setStackLimit U_ICU_ENTRY_POINT_RENAME(uregex_setStackLimit)
+#define uregex_setText U_ICU_ENTRY_POINT_RENAME(uregex_setText)
+#define uregex_setTimeLimit U_ICU_ENTRY_POINT_RENAME(uregex_setTimeLimit)
+#define uregex_setUText U_ICU_ENTRY_POINT_RENAME(uregex_setUText)
+#define uregex_split U_ICU_ENTRY_POINT_RENAME(uregex_split)
+#define uregex_splitUText U_ICU_ENTRY_POINT_RENAME(uregex_splitUText)
+#define uregex_start U_ICU_ENTRY_POINT_RENAME(uregex_start)
+#define uregex_start64 U_ICU_ENTRY_POINT_RENAME(uregex_start64)
+#define uregex_ucstr_unescape_charAt U_ICU_ENTRY_POINT_RENAME(uregex_ucstr_unescape_charAt)
+#define uregex_useAnchoringBounds U_ICU_ENTRY_POINT_RENAME(uregex_useAnchoringBounds)
+#define uregex_useTransparentBounds U_ICU_ENTRY_POINT_RENAME(uregex_useTransparentBounds)
+#define uregex_utext_unescape_charAt U_ICU_ENTRY_POINT_RENAME(uregex_utext_unescape_charAt)
+#define uregion_areEqual U_ICU_ENTRY_POINT_RENAME(uregion_areEqual)
+#define uregion_contains U_ICU_ENTRY_POINT_RENAME(uregion_contains)
+#define uregion_getAvailable U_ICU_ENTRY_POINT_RENAME(uregion_getAvailable)
+#define uregion_getContainedRegions U_ICU_ENTRY_POINT_RENAME(uregion_getContainedRegions)
+#define uregion_getContainedRegionsOfType U_ICU_ENTRY_POINT_RENAME(uregion_getContainedRegionsOfType)
+#define uregion_getContainingRegion U_ICU_ENTRY_POINT_RENAME(uregion_getContainingRegion)
+#define uregion_getContainingRegionOfType U_ICU_ENTRY_POINT_RENAME(uregion_getContainingRegionOfType)
+#define uregion_getNumericCode U_ICU_ENTRY_POINT_RENAME(uregion_getNumericCode)
+#define uregion_getPreferredValues U_ICU_ENTRY_POINT_RENAME(uregion_getPreferredValues)
+#define uregion_getRegionCode U_ICU_ENTRY_POINT_RENAME(uregion_getRegionCode)
+#define uregion_getRegionFromCode U_ICU_ENTRY_POINT_RENAME(uregion_getRegionFromCode)
+#define uregion_getRegionFromNumericCode U_ICU_ENTRY_POINT_RENAME(uregion_getRegionFromNumericCode)
+#define uregion_getType U_ICU_ENTRY_POINT_RENAME(uregion_getType)
+#define ureldatefmt_close U_ICU_ENTRY_POINT_RENAME(ureldatefmt_close)
+#define ureldatefmt_combineDateAndTime U_ICU_ENTRY_POINT_RENAME(ureldatefmt_combineDateAndTime)
+#define ureldatefmt_format U_ICU_ENTRY_POINT_RENAME(ureldatefmt_format)
+#define ureldatefmt_formatNumeric U_ICU_ENTRY_POINT_RENAME(ureldatefmt_formatNumeric)
+#define ureldatefmt_open U_ICU_ENTRY_POINT_RENAME(ureldatefmt_open)
+#define ures_close U_ICU_ENTRY_POINT_RENAME(ures_close)
+#define ures_copyResb U_ICU_ENTRY_POINT_RENAME(ures_copyResb)
+#define ures_countArrayItems U_ICU_ENTRY_POINT_RENAME(ures_countArrayItems)
+#define ures_findResource U_ICU_ENTRY_POINT_RENAME(ures_findResource)
+#define ures_findSubResource U_ICU_ENTRY_POINT_RENAME(ures_findSubResource)
+#define ures_getAllItemsWithFallback U_ICU_ENTRY_POINT_RENAME(ures_getAllItemsWithFallback)
+#define ures_getBinary U_ICU_ENTRY_POINT_RENAME(ures_getBinary)
+#define ures_getByIndex U_ICU_ENTRY_POINT_RENAME(ures_getByIndex)
+#define ures_getByKey U_ICU_ENTRY_POINT_RENAME(ures_getByKey)
+#define ures_getByKeyWithFallback U_ICU_ENTRY_POINT_RENAME(ures_getByKeyWithFallback)
+#define ures_getFunctionalEquivalent U_ICU_ENTRY_POINT_RENAME(ures_getFunctionalEquivalent)
+#define ures_getInt U_ICU_ENTRY_POINT_RENAME(ures_getInt)
+#define ures_getIntVector U_ICU_ENTRY_POINT_RENAME(ures_getIntVector)
+#define ures_getKey U_ICU_ENTRY_POINT_RENAME(ures_getKey)
+#define ures_getKeywordValues U_ICU_ENTRY_POINT_RENAME(ures_getKeywordValues)
+#define ures_getLocale U_ICU_ENTRY_POINT_RENAME(ures_getLocale)
+#define ures_getLocaleByType U_ICU_ENTRY_POINT_RENAME(ures_getLocaleByType)
+#define ures_getLocaleInternal U_ICU_ENTRY_POINT_RENAME(ures_getLocaleInternal)
+#define ures_getName U_ICU_ENTRY_POINT_RENAME(ures_getName)
+#define ures_getNextResource U_ICU_ENTRY_POINT_RENAME(ures_getNextResource)
+#define ures_getNextString U_ICU_ENTRY_POINT_RENAME(ures_getNextString)
+#define ures_getSize U_ICU_ENTRY_POINT_RENAME(ures_getSize)
+#define ures_getString U_ICU_ENTRY_POINT_RENAME(ures_getString)
+#define ures_getStringByIndex U_ICU_ENTRY_POINT_RENAME(ures_getStringByIndex)
+#define ures_getStringByKey U_ICU_ENTRY_POINT_RENAME(ures_getStringByKey)
+#define ures_getStringByKeyWithFallback U_ICU_ENTRY_POINT_RENAME(ures_getStringByKeyWithFallback)
+#define ures_getType U_ICU_ENTRY_POINT_RENAME(ures_getType)
+#define ures_getUInt U_ICU_ENTRY_POINT_RENAME(ures_getUInt)
+#define ures_getUTF8String U_ICU_ENTRY_POINT_RENAME(ures_getUTF8String)
+#define ures_getUTF8StringByIndex U_ICU_ENTRY_POINT_RENAME(ures_getUTF8StringByIndex)
+#define ures_getUTF8StringByKey U_ICU_ENTRY_POINT_RENAME(ures_getUTF8StringByKey)
+#define ures_getVersion U_ICU_ENTRY_POINT_RENAME(ures_getVersion)
+#define ures_getVersionByKey U_ICU_ENTRY_POINT_RENAME(ures_getVersionByKey)
+#define ures_getVersionNumber U_ICU_ENTRY_POINT_RENAME(ures_getVersionNumber)
+#define ures_getVersionNumberInternal U_ICU_ENTRY_POINT_RENAME(ures_getVersionNumberInternal)
+#define ures_hasNext U_ICU_ENTRY_POINT_RENAME(ures_hasNext)
+#define ures_initStackObject U_ICU_ENTRY_POINT_RENAME(ures_initStackObject)
+#define ures_open U_ICU_ENTRY_POINT_RENAME(ures_open)
+#define ures_openAvailableLocales U_ICU_ENTRY_POINT_RENAME(ures_openAvailableLocales)
+#define ures_openDirect U_ICU_ENTRY_POINT_RENAME(ures_openDirect)
+#define ures_openFillIn U_ICU_ENTRY_POINT_RENAME(ures_openFillIn)
+#define ures_openNoDefault U_ICU_ENTRY_POINT_RENAME(ures_openNoDefault)
+#define ures_openU U_ICU_ENTRY_POINT_RENAME(ures_openU)
+#define ures_resetIterator U_ICU_ENTRY_POINT_RENAME(ures_resetIterator)
+#define ures_swap U_ICU_ENTRY_POINT_RENAME(ures_swap)
+#define uscript_breaksBetweenLetters U_ICU_ENTRY_POINT_RENAME(uscript_breaksBetweenLetters)
+#define uscript_closeRun U_ICU_ENTRY_POINT_RENAME(uscript_closeRun)
+#define uscript_getCode U_ICU_ENTRY_POINT_RENAME(uscript_getCode)
+#define uscript_getName U_ICU_ENTRY_POINT_RENAME(uscript_getName)
+#define uscript_getSampleString U_ICU_ENTRY_POINT_RENAME(uscript_getSampleString)
+#define uscript_getSampleUnicodeString U_ICU_ENTRY_POINT_RENAME(uscript_getSampleUnicodeString)
+#define uscript_getScript U_ICU_ENTRY_POINT_RENAME(uscript_getScript)
+#define uscript_getScriptExtensions U_ICU_ENTRY_POINT_RENAME(uscript_getScriptExtensions)
+#define uscript_getShortName U_ICU_ENTRY_POINT_RENAME(uscript_getShortName)
+#define uscript_getUsage U_ICU_ENTRY_POINT_RENAME(uscript_getUsage)
+#define uscript_hasScript U_ICU_ENTRY_POINT_RENAME(uscript_hasScript)
+#define uscript_isCased U_ICU_ENTRY_POINT_RENAME(uscript_isCased)
+#define uscript_isRightToLeft U_ICU_ENTRY_POINT_RENAME(uscript_isRightToLeft)
+#define uscript_nextRun U_ICU_ENTRY_POINT_RENAME(uscript_nextRun)
+#define uscript_openRun U_ICU_ENTRY_POINT_RENAME(uscript_openRun)
+#define uscript_resetRun U_ICU_ENTRY_POINT_RENAME(uscript_resetRun)
+#define uscript_setRunText U_ICU_ENTRY_POINT_RENAME(uscript_setRunText)
+#define usearch_close U_ICU_ENTRY_POINT_RENAME(usearch_close)
+#define usearch_first U_ICU_ENTRY_POINT_RENAME(usearch_first)
+#define usearch_following U_ICU_ENTRY_POINT_RENAME(usearch_following)
+#define usearch_getAttribute U_ICU_ENTRY_POINT_RENAME(usearch_getAttribute)
+#define usearch_getBreakIterator U_ICU_ENTRY_POINT_RENAME(usearch_getBreakIterator)
+#define usearch_getCollator U_ICU_ENTRY_POINT_RENAME(usearch_getCollator)
+#define usearch_getMatchedLength U_ICU_ENTRY_POINT_RENAME(usearch_getMatchedLength)
+#define usearch_getMatchedStart U_ICU_ENTRY_POINT_RENAME(usearch_getMatchedStart)
+#define usearch_getMatchedText U_ICU_ENTRY_POINT_RENAME(usearch_getMatchedText)
+#define usearch_getOffset U_ICU_ENTRY_POINT_RENAME(usearch_getOffset)
+#define usearch_getPattern U_ICU_ENTRY_POINT_RENAME(usearch_getPattern)
+#define usearch_getText U_ICU_ENTRY_POINT_RENAME(usearch_getText)
+#define usearch_handleNextCanonical U_ICU_ENTRY_POINT_RENAME(usearch_handleNextCanonical)
+#define usearch_handleNextExact U_ICU_ENTRY_POINT_RENAME(usearch_handleNextExact)
+#define usearch_handlePreviousCanonical U_ICU_ENTRY_POINT_RENAME(usearch_handlePreviousCanonical)
+#define usearch_handlePreviousExact U_ICU_ENTRY_POINT_RENAME(usearch_handlePreviousExact)
+#define usearch_last U_ICU_ENTRY_POINT_RENAME(usearch_last)
+#define usearch_next U_ICU_ENTRY_POINT_RENAME(usearch_next)
+#define usearch_open U_ICU_ENTRY_POINT_RENAME(usearch_open)
+#define usearch_openFromCollator U_ICU_ENTRY_POINT_RENAME(usearch_openFromCollator)
+#define usearch_preceding U_ICU_ENTRY_POINT_RENAME(usearch_preceding)
+#define usearch_previous U_ICU_ENTRY_POINT_RENAME(usearch_previous)
+#define usearch_reset U_ICU_ENTRY_POINT_RENAME(usearch_reset)
+#define usearch_search U_ICU_ENTRY_POINT_RENAME(usearch_search)
+#define usearch_searchBackwards U_ICU_ENTRY_POINT_RENAME(usearch_searchBackwards)
+#define usearch_setAttribute U_ICU_ENTRY_POINT_RENAME(usearch_setAttribute)
+#define usearch_setBreakIterator U_ICU_ENTRY_POINT_RENAME(usearch_setBreakIterator)
+#define usearch_setCollator U_ICU_ENTRY_POINT_RENAME(usearch_setCollator)
+#define usearch_setOffset U_ICU_ENTRY_POINT_RENAME(usearch_setOffset)
+#define usearch_setPattern U_ICU_ENTRY_POINT_RENAME(usearch_setPattern)
+#define usearch_setText U_ICU_ENTRY_POINT_RENAME(usearch_setText)
+#define uset_add U_ICU_ENTRY_POINT_RENAME(uset_add)
+#define uset_addAll U_ICU_ENTRY_POINT_RENAME(uset_addAll)
+#define uset_addAllCodePoints U_ICU_ENTRY_POINT_RENAME(uset_addAllCodePoints)
+#define uset_addRange U_ICU_ENTRY_POINT_RENAME(uset_addRange)
+#define uset_addString U_ICU_ENTRY_POINT_RENAME(uset_addString)
+#define uset_applyIntPropertyValue U_ICU_ENTRY_POINT_RENAME(uset_applyIntPropertyValue)
+#define uset_applyPattern U_ICU_ENTRY_POINT_RENAME(uset_applyPattern)
+#define uset_applyPropertyAlias U_ICU_ENTRY_POINT_RENAME(uset_applyPropertyAlias)
+#define uset_charAt U_ICU_ENTRY_POINT_RENAME(uset_charAt)
+#define uset_clear U_ICU_ENTRY_POINT_RENAME(uset_clear)
+#define uset_clone U_ICU_ENTRY_POINT_RENAME(uset_clone)
+#define uset_cloneAsThawed U_ICU_ENTRY_POINT_RENAME(uset_cloneAsThawed)
+#define uset_close U_ICU_ENTRY_POINT_RENAME(uset_close)
+#define uset_closeOver U_ICU_ENTRY_POINT_RENAME(uset_closeOver)
+#define uset_compact U_ICU_ENTRY_POINT_RENAME(uset_compact)
+#define uset_complement U_ICU_ENTRY_POINT_RENAME(uset_complement)
+#define uset_complementAll U_ICU_ENTRY_POINT_RENAME(uset_complementAll)
+#define uset_contains U_ICU_ENTRY_POINT_RENAME(uset_contains)
+#define uset_containsAll U_ICU_ENTRY_POINT_RENAME(uset_containsAll)
+#define uset_containsAllCodePoints U_ICU_ENTRY_POINT_RENAME(uset_containsAllCodePoints)
+#define uset_containsNone U_ICU_ENTRY_POINT_RENAME(uset_containsNone)
+#define uset_containsRange U_ICU_ENTRY_POINT_RENAME(uset_containsRange)
+#define uset_containsSome U_ICU_ENTRY_POINT_RENAME(uset_containsSome)
+#define uset_containsString U_ICU_ENTRY_POINT_RENAME(uset_containsString)
+#define uset_equals U_ICU_ENTRY_POINT_RENAME(uset_equals)
+#define uset_freeze U_ICU_ENTRY_POINT_RENAME(uset_freeze)
+#define uset_getItem U_ICU_ENTRY_POINT_RENAME(uset_getItem)
+#define uset_getItemCount U_ICU_ENTRY_POINT_RENAME(uset_getItemCount)
+#define uset_getSerializedRange U_ICU_ENTRY_POINT_RENAME(uset_getSerializedRange)
+#define uset_getSerializedRangeCount U_ICU_ENTRY_POINT_RENAME(uset_getSerializedRangeCount)
+#define uset_getSerializedSet U_ICU_ENTRY_POINT_RENAME(uset_getSerializedSet)
+#define uset_indexOf U_ICU_ENTRY_POINT_RENAME(uset_indexOf)
+#define uset_isEmpty U_ICU_ENTRY_POINT_RENAME(uset_isEmpty)
+#define uset_isFrozen U_ICU_ENTRY_POINT_RENAME(uset_isFrozen)
+#define uset_open U_ICU_ENTRY_POINT_RENAME(uset_open)
+#define uset_openEmpty U_ICU_ENTRY_POINT_RENAME(uset_openEmpty)
+#define uset_openPattern U_ICU_ENTRY_POINT_RENAME(uset_openPattern)
+#define uset_openPatternOptions U_ICU_ENTRY_POINT_RENAME(uset_openPatternOptions)
+#define uset_remove U_ICU_ENTRY_POINT_RENAME(uset_remove)
+#define uset_removeAll U_ICU_ENTRY_POINT_RENAME(uset_removeAll)
+#define uset_removeAllStrings U_ICU_ENTRY_POINT_RENAME(uset_removeAllStrings)
+#define uset_removeRange U_ICU_ENTRY_POINT_RENAME(uset_removeRange)
+#define uset_removeString U_ICU_ENTRY_POINT_RENAME(uset_removeString)
+#define uset_resemblesPattern U_ICU_ENTRY_POINT_RENAME(uset_resemblesPattern)
+#define uset_retain U_ICU_ENTRY_POINT_RENAME(uset_retain)
+#define uset_retainAll U_ICU_ENTRY_POINT_RENAME(uset_retainAll)
+#define uset_serialize U_ICU_ENTRY_POINT_RENAME(uset_serialize)
+#define uset_serializedContains U_ICU_ENTRY_POINT_RENAME(uset_serializedContains)
+#define uset_set U_ICU_ENTRY_POINT_RENAME(uset_set)
+#define uset_setSerializedToOne U_ICU_ENTRY_POINT_RENAME(uset_setSerializedToOne)
+#define uset_size U_ICU_ENTRY_POINT_RENAME(uset_size)
+#define uset_span U_ICU_ENTRY_POINT_RENAME(uset_span)
+#define uset_spanBack U_ICU_ENTRY_POINT_RENAME(uset_spanBack)
+#define uset_spanBackUTF8 U_ICU_ENTRY_POINT_RENAME(uset_spanBackUTF8)
+#define uset_spanUTF8 U_ICU_ENTRY_POINT_RENAME(uset_spanUTF8)
+#define uset_toPattern U_ICU_ENTRY_POINT_RENAME(uset_toPattern)
+#define uspoof_areConfusable U_ICU_ENTRY_POINT_RENAME(uspoof_areConfusable)
+#define uspoof_areConfusableUTF8 U_ICU_ENTRY_POINT_RENAME(uspoof_areConfusableUTF8)
+#define uspoof_areConfusableUnicodeString U_ICU_ENTRY_POINT_RENAME(uspoof_areConfusableUnicodeString)
+#define uspoof_check U_ICU_ENTRY_POINT_RENAME(uspoof_check)
+#define uspoof_check2 U_ICU_ENTRY_POINT_RENAME(uspoof_check2)
+#define uspoof_check2UTF8 U_ICU_ENTRY_POINT_RENAME(uspoof_check2UTF8)
+#define uspoof_check2UnicodeString U_ICU_ENTRY_POINT_RENAME(uspoof_check2UnicodeString)
+#define uspoof_checkUTF8 U_ICU_ENTRY_POINT_RENAME(uspoof_checkUTF8)
+#define uspoof_checkUnicodeString U_ICU_ENTRY_POINT_RENAME(uspoof_checkUnicodeString)
+#define uspoof_clone U_ICU_ENTRY_POINT_RENAME(uspoof_clone)
+#define uspoof_close U_ICU_ENTRY_POINT_RENAME(uspoof_close)
+#define uspoof_closeCheckResult U_ICU_ENTRY_POINT_RENAME(uspoof_closeCheckResult)
+#define uspoof_getAllowedChars U_ICU_ENTRY_POINT_RENAME(uspoof_getAllowedChars)
+#define uspoof_getAllowedLocales U_ICU_ENTRY_POINT_RENAME(uspoof_getAllowedLocales)
+#define uspoof_getAllowedUnicodeSet U_ICU_ENTRY_POINT_RENAME(uspoof_getAllowedUnicodeSet)
+#define uspoof_getCheckResultChecks U_ICU_ENTRY_POINT_RENAME(uspoof_getCheckResultChecks)
+#define uspoof_getCheckResultNumerics U_ICU_ENTRY_POINT_RENAME(uspoof_getCheckResultNumerics)
+#define uspoof_getCheckResultRestrictionLevel U_ICU_ENTRY_POINT_RENAME(uspoof_getCheckResultRestrictionLevel)
+#define uspoof_getChecks U_ICU_ENTRY_POINT_RENAME(uspoof_getChecks)
+#define uspoof_getInclusionSet U_ICU_ENTRY_POINT_RENAME(uspoof_getInclusionSet)
+#define uspoof_getInclusionUnicodeSet U_ICU_ENTRY_POINT_RENAME(uspoof_getInclusionUnicodeSet)
+#define uspoof_getRecommendedSet U_ICU_ENTRY_POINT_RENAME(uspoof_getRecommendedSet)
+#define uspoof_getRecommendedUnicodeSet U_ICU_ENTRY_POINT_RENAME(uspoof_getRecommendedUnicodeSet)
+#define uspoof_getRestrictionLevel U_ICU_ENTRY_POINT_RENAME(uspoof_getRestrictionLevel)
+#define uspoof_getSkeleton U_ICU_ENTRY_POINT_RENAME(uspoof_getSkeleton)
+#define uspoof_getSkeletonUTF8 U_ICU_ENTRY_POINT_RENAME(uspoof_getSkeletonUTF8)
+#define uspoof_getSkeletonUnicodeString U_ICU_ENTRY_POINT_RENAME(uspoof_getSkeletonUnicodeString)
+#define uspoof_internalInitStatics U_ICU_ENTRY_POINT_RENAME(uspoof_internalInitStatics)
+#define uspoof_open U_ICU_ENTRY_POINT_RENAME(uspoof_open)
+#define uspoof_openCheckResult U_ICU_ENTRY_POINT_RENAME(uspoof_openCheckResult)
+#define uspoof_openFromSerialized U_ICU_ENTRY_POINT_RENAME(uspoof_openFromSerialized)
+#define uspoof_openFromSource U_ICU_ENTRY_POINT_RENAME(uspoof_openFromSource)
+#define uspoof_serialize U_ICU_ENTRY_POINT_RENAME(uspoof_serialize)
+#define uspoof_setAllowedChars U_ICU_ENTRY_POINT_RENAME(uspoof_setAllowedChars)
+#define uspoof_setAllowedLocales U_ICU_ENTRY_POINT_RENAME(uspoof_setAllowedLocales)
+#define uspoof_setAllowedUnicodeSet U_ICU_ENTRY_POINT_RENAME(uspoof_setAllowedUnicodeSet)
+#define uspoof_setChecks U_ICU_ENTRY_POINT_RENAME(uspoof_setChecks)
+#define uspoof_setRestrictionLevel U_ICU_ENTRY_POINT_RENAME(uspoof_setRestrictionLevel)
+#define uspoof_swap U_ICU_ENTRY_POINT_RENAME(uspoof_swap)
+#define usprep_close U_ICU_ENTRY_POINT_RENAME(usprep_close)
+#define usprep_open U_ICU_ENTRY_POINT_RENAME(usprep_open)
+#define usprep_openByType U_ICU_ENTRY_POINT_RENAME(usprep_openByType)
+#define usprep_prepare U_ICU_ENTRY_POINT_RENAME(usprep_prepare)
+#define usprep_swap U_ICU_ENTRY_POINT_RENAME(usprep_swap)
+#define ustr_hashCharsN U_ICU_ENTRY_POINT_RENAME(ustr_hashCharsN)
+#define ustr_hashICharsN U_ICU_ENTRY_POINT_RENAME(ustr_hashICharsN)
+#define ustr_hashUCharsN U_ICU_ENTRY_POINT_RENAME(ustr_hashUCharsN)
+#define ustrcase_getCaseLocale U_ICU_ENTRY_POINT_RENAME(ustrcase_getCaseLocale)
+#define ustrcase_getTitleBreakIterator U_ICU_ENTRY_POINT_RENAME(ustrcase_getTitleBreakIterator)
+#define ustrcase_internalFold U_ICU_ENTRY_POINT_RENAME(ustrcase_internalFold)
+#define ustrcase_internalToLower U_ICU_ENTRY_POINT_RENAME(ustrcase_internalToLower)
+#define ustrcase_internalToTitle U_ICU_ENTRY_POINT_RENAME(ustrcase_internalToTitle)
+#define ustrcase_internalToUpper U_ICU_ENTRY_POINT_RENAME(ustrcase_internalToUpper)
+#define ustrcase_map U_ICU_ENTRY_POINT_RENAME(ustrcase_map)
+#define ustrcase_mapWithOverlap U_ICU_ENTRY_POINT_RENAME(ustrcase_mapWithOverlap)
+#define utext_char32At U_ICU_ENTRY_POINT_RENAME(utext_char32At)
+#define utext_clone U_ICU_ENTRY_POINT_RENAME(utext_clone)
+#define utext_close U_ICU_ENTRY_POINT_RENAME(utext_close)
+#define utext_copy U_ICU_ENTRY_POINT_RENAME(utext_copy)
+#define utext_current32 U_ICU_ENTRY_POINT_RENAME(utext_current32)
+#define utext_equals U_ICU_ENTRY_POINT_RENAME(utext_equals)
+#define utext_extract U_ICU_ENTRY_POINT_RENAME(utext_extract)
+#define utext_freeze U_ICU_ENTRY_POINT_RENAME(utext_freeze)
+#define utext_getNativeIndex U_ICU_ENTRY_POINT_RENAME(utext_getNativeIndex)
+#define utext_getPreviousNativeIndex U_ICU_ENTRY_POINT_RENAME(utext_getPreviousNativeIndex)
+#define utext_hasMetaData U_ICU_ENTRY_POINT_RENAME(utext_hasMetaData)
+#define utext_isLengthExpensive U_ICU_ENTRY_POINT_RENAME(utext_isLengthExpensive)
+#define utext_isWritable U_ICU_ENTRY_POINT_RENAME(utext_isWritable)
+#define utext_moveIndex32 U_ICU_ENTRY_POINT_RENAME(utext_moveIndex32)
+#define utext_nativeLength U_ICU_ENTRY_POINT_RENAME(utext_nativeLength)
+#define utext_next32 U_ICU_ENTRY_POINT_RENAME(utext_next32)
+#define utext_next32From U_ICU_ENTRY_POINT_RENAME(utext_next32From)
+#define utext_openCharacterIterator U_ICU_ENTRY_POINT_RENAME(utext_openCharacterIterator)
+#define utext_openConstUnicodeString U_ICU_ENTRY_POINT_RENAME(utext_openConstUnicodeString)
+#define utext_openReplaceable U_ICU_ENTRY_POINT_RENAME(utext_openReplaceable)
+#define utext_openUChars U_ICU_ENTRY_POINT_RENAME(utext_openUChars)
+#define utext_openUTF8 U_ICU_ENTRY_POINT_RENAME(utext_openUTF8)
+#define utext_openUnicodeString U_ICU_ENTRY_POINT_RENAME(utext_openUnicodeString)
+#define utext_previous32 U_ICU_ENTRY_POINT_RENAME(utext_previous32)
+#define utext_previous32From U_ICU_ENTRY_POINT_RENAME(utext_previous32From)
+#define utext_replace U_ICU_ENTRY_POINT_RENAME(utext_replace)
+#define utext_setNativeIndex U_ICU_ENTRY_POINT_RENAME(utext_setNativeIndex)
+#define utext_setup U_ICU_ENTRY_POINT_RENAME(utext_setup)
+#define utf8_appendCharSafeBody U_ICU_ENTRY_POINT_RENAME(utf8_appendCharSafeBody)
+#define utf8_back1SafeBody U_ICU_ENTRY_POINT_RENAME(utf8_back1SafeBody)
+#define utf8_countTrailBytes U_ICU_ENTRY_POINT_RENAME(utf8_countTrailBytes)
+#define utf8_nextCharSafeBody U_ICU_ENTRY_POINT_RENAME(utf8_nextCharSafeBody)
+#define utf8_prevCharSafeBody U_ICU_ENTRY_POINT_RENAME(utf8_prevCharSafeBody)
+#define utmscale_fromInt64 U_ICU_ENTRY_POINT_RENAME(utmscale_fromInt64)
+#define utmscale_getTimeScaleValue U_ICU_ENTRY_POINT_RENAME(utmscale_getTimeScaleValue)
+#define utmscale_toInt64 U_ICU_ENTRY_POINT_RENAME(utmscale_toInt64)
+#define utrace_cleanup U_ICU_ENTRY_POINT_RENAME(utrace_cleanup)
+#define utrace_data U_ICU_ENTRY_POINT_RENAME(utrace_data)
+#define utrace_entry U_ICU_ENTRY_POINT_RENAME(utrace_entry)
+#define utrace_exit U_ICU_ENTRY_POINT_RENAME(utrace_exit)
+#define utrace_format U_ICU_ENTRY_POINT_RENAME(utrace_format)
+#define utrace_functionName U_ICU_ENTRY_POINT_RENAME(utrace_functionName)
+#define utrace_getFunctions U_ICU_ENTRY_POINT_RENAME(utrace_getFunctions)
+#define utrace_getLevel U_ICU_ENTRY_POINT_RENAME(utrace_getLevel)
+#define utrace_setFunctions U_ICU_ENTRY_POINT_RENAME(utrace_setFunctions)
+#define utrace_setLevel U_ICU_ENTRY_POINT_RENAME(utrace_setLevel)
+#define utrace_vformat U_ICU_ENTRY_POINT_RENAME(utrace_vformat)
+#define utrans_clone U_ICU_ENTRY_POINT_RENAME(utrans_clone)
+#define utrans_close U_ICU_ENTRY_POINT_RENAME(utrans_close)
+#define utrans_countAvailableIDs U_ICU_ENTRY_POINT_RENAME(utrans_countAvailableIDs)
+#define utrans_getAvailableID U_ICU_ENTRY_POINT_RENAME(utrans_getAvailableID)
+#define utrans_getID U_ICU_ENTRY_POINT_RENAME(utrans_getID)
+#define utrans_getSourceSet U_ICU_ENTRY_POINT_RENAME(utrans_getSourceSet)
+#define utrans_getUnicodeID U_ICU_ENTRY_POINT_RENAME(utrans_getUnicodeID)
+#define utrans_open U_ICU_ENTRY_POINT_RENAME(utrans_open)
+#define utrans_openIDs U_ICU_ENTRY_POINT_RENAME(utrans_openIDs)
+#define utrans_openInverse U_ICU_ENTRY_POINT_RENAME(utrans_openInverse)
+#define utrans_openU U_ICU_ENTRY_POINT_RENAME(utrans_openU)
+#define utrans_register U_ICU_ENTRY_POINT_RENAME(utrans_register)
+#define utrans_rep_caseContextIterator U_ICU_ENTRY_POINT_RENAME(utrans_rep_caseContextIterator)
+#define utrans_setFilter U_ICU_ENTRY_POINT_RENAME(utrans_setFilter)
+#define utrans_stripRules U_ICU_ENTRY_POINT_RENAME(utrans_stripRules)
+#define utrans_toRules U_ICU_ENTRY_POINT_RENAME(utrans_toRules)
+#define utrans_trans U_ICU_ENTRY_POINT_RENAME(utrans_trans)
+#define utrans_transIncremental U_ICU_ENTRY_POINT_RENAME(utrans_transIncremental)
+#define utrans_transIncrementalUChars U_ICU_ENTRY_POINT_RENAME(utrans_transIncrementalUChars)
+#define utrans_transUChars U_ICU_ENTRY_POINT_RENAME(utrans_transUChars)
+#define utrans_transliterator_cleanup U_ICU_ENTRY_POINT_RENAME(utrans_transliterator_cleanup)
+#define utrans_unregister U_ICU_ENTRY_POINT_RENAME(utrans_unregister)
+#define utrans_unregisterID U_ICU_ENTRY_POINT_RENAME(utrans_unregisterID)
+#define utrie2_clone U_ICU_ENTRY_POINT_RENAME(utrie2_clone)
+#define utrie2_cloneAsThawed U_ICU_ENTRY_POINT_RENAME(utrie2_cloneAsThawed)
+#define utrie2_close U_ICU_ENTRY_POINT_RENAME(utrie2_close)
+#define utrie2_enum U_ICU_ENTRY_POINT_RENAME(utrie2_enum)
+#define utrie2_enumForLeadSurrogate U_ICU_ENTRY_POINT_RENAME(utrie2_enumForLeadSurrogate)
+#define utrie2_freeze U_ICU_ENTRY_POINT_RENAME(utrie2_freeze)
+#define utrie2_fromUTrie U_ICU_ENTRY_POINT_RENAME(utrie2_fromUTrie)
+#define utrie2_get32 U_ICU_ENTRY_POINT_RENAME(utrie2_get32)
+#define utrie2_get32FromLeadSurrogateCodeUnit U_ICU_ENTRY_POINT_RENAME(utrie2_get32FromLeadSurrogateCodeUnit)
+#define utrie2_getVersion U_ICU_ENTRY_POINT_RENAME(utrie2_getVersion)
+#define utrie2_internalU8NextIndex U_ICU_ENTRY_POINT_RENAME(utrie2_internalU8NextIndex)
+#define utrie2_internalU8PrevIndex U_ICU_ENTRY_POINT_RENAME(utrie2_internalU8PrevIndex)
+#define utrie2_isFrozen U_ICU_ENTRY_POINT_RENAME(utrie2_isFrozen)
+#define utrie2_open U_ICU_ENTRY_POINT_RENAME(utrie2_open)
+#define utrie2_openDummy U_ICU_ENTRY_POINT_RENAME(utrie2_openDummy)
+#define utrie2_openFromSerialized U_ICU_ENTRY_POINT_RENAME(utrie2_openFromSerialized)
+#define utrie2_serialize U_ICU_ENTRY_POINT_RENAME(utrie2_serialize)
+#define utrie2_set32 U_ICU_ENTRY_POINT_RENAME(utrie2_set32)
+#define utrie2_set32ForLeadSurrogateCodeUnit U_ICU_ENTRY_POINT_RENAME(utrie2_set32ForLeadSurrogateCodeUnit)
+#define utrie2_setRange32 U_ICU_ENTRY_POINT_RENAME(utrie2_setRange32)
+#define utrie2_swap U_ICU_ENTRY_POINT_RENAME(utrie2_swap)
+#define utrie2_swapAnyVersion U_ICU_ENTRY_POINT_RENAME(utrie2_swapAnyVersion)
+#define utrie_clone U_ICU_ENTRY_POINT_RENAME(utrie_clone)
+#define utrie_close U_ICU_ENTRY_POINT_RENAME(utrie_close)
+#define utrie_defaultGetFoldingOffset U_ICU_ENTRY_POINT_RENAME(utrie_defaultGetFoldingOffset)
+#define utrie_enum U_ICU_ENTRY_POINT_RENAME(utrie_enum)
+#define utrie_get32 U_ICU_ENTRY_POINT_RENAME(utrie_get32)
+#define utrie_getData U_ICU_ENTRY_POINT_RENAME(utrie_getData)
+#define utrie_open U_ICU_ENTRY_POINT_RENAME(utrie_open)
+#define utrie_serialize U_ICU_ENTRY_POINT_RENAME(utrie_serialize)
+#define utrie_set32 U_ICU_ENTRY_POINT_RENAME(utrie_set32)
+#define utrie_setRange32 U_ICU_ENTRY_POINT_RENAME(utrie_setRange32)
+#define utrie_swap U_ICU_ENTRY_POINT_RENAME(utrie_swap)
+#define utrie_unserialize U_ICU_ENTRY_POINT_RENAME(utrie_unserialize)
+#define utrie_unserializeDummy U_ICU_ENTRY_POINT_RENAME(utrie_unserializeDummy)
+#define vzone_clone U_ICU_ENTRY_POINT_RENAME(vzone_clone)
+#define vzone_close U_ICU_ENTRY_POINT_RENAME(vzone_close)
+#define vzone_countTransitionRules U_ICU_ENTRY_POINT_RENAME(vzone_countTransitionRules)
+#define vzone_equals U_ICU_ENTRY_POINT_RENAME(vzone_equals)
+#define vzone_getDynamicClassID U_ICU_ENTRY_POINT_RENAME(vzone_getDynamicClassID)
+#define vzone_getLastModified U_ICU_ENTRY_POINT_RENAME(vzone_getLastModified)
+#define vzone_getNextTransition U_ICU_ENTRY_POINT_RENAME(vzone_getNextTransition)
+#define vzone_getOffset U_ICU_ENTRY_POINT_RENAME(vzone_getOffset)
+#define vzone_getOffset2 U_ICU_ENTRY_POINT_RENAME(vzone_getOffset2)
+#define vzone_getOffset3 U_ICU_ENTRY_POINT_RENAME(vzone_getOffset3)
+#define vzone_getPreviousTransition U_ICU_ENTRY_POINT_RENAME(vzone_getPreviousTransition)
+#define vzone_getRawOffset U_ICU_ENTRY_POINT_RENAME(vzone_getRawOffset)
+#define vzone_getStaticClassID U_ICU_ENTRY_POINT_RENAME(vzone_getStaticClassID)
+#define vzone_getTZURL U_ICU_ENTRY_POINT_RENAME(vzone_getTZURL)
+#define vzone_hasSameRules U_ICU_ENTRY_POINT_RENAME(vzone_hasSameRules)
+#define vzone_inDaylightTime U_ICU_ENTRY_POINT_RENAME(vzone_inDaylightTime)
+#define vzone_openData U_ICU_ENTRY_POINT_RENAME(vzone_openData)
+#define vzone_openID U_ICU_ENTRY_POINT_RENAME(vzone_openID)
+#define vzone_setLastModified U_ICU_ENTRY_POINT_RENAME(vzone_setLastModified)
+#define vzone_setRawOffset U_ICU_ENTRY_POINT_RENAME(vzone_setRawOffset)
+#define vzone_setTZURL U_ICU_ENTRY_POINT_RENAME(vzone_setTZURL)
+#define vzone_useDaylightTime U_ICU_ENTRY_POINT_RENAME(vzone_useDaylightTime)
+#define vzone_write U_ICU_ENTRY_POINT_RENAME(vzone_write)
+#define vzone_writeFromStart U_ICU_ENTRY_POINT_RENAME(vzone_writeFromStart)
+#define vzone_writeSimple U_ICU_ENTRY_POINT_RENAME(vzone_writeSimple)
+#define zrule_close U_ICU_ENTRY_POINT_RENAME(zrule_close)
+#define zrule_equals U_ICU_ENTRY_POINT_RENAME(zrule_equals)
+#define zrule_getDSTSavings U_ICU_ENTRY_POINT_RENAME(zrule_getDSTSavings)
+#define zrule_getName U_ICU_ENTRY_POINT_RENAME(zrule_getName)
+#define zrule_getRawOffset U_ICU_ENTRY_POINT_RENAME(zrule_getRawOffset)
+#define zrule_isEquivalentTo U_ICU_ENTRY_POINT_RENAME(zrule_isEquivalentTo)
+#define ztrans_adoptFrom U_ICU_ENTRY_POINT_RENAME(ztrans_adoptFrom)
+#define ztrans_adoptTo U_ICU_ENTRY_POINT_RENAME(ztrans_adoptTo)
+#define ztrans_clone U_ICU_ENTRY_POINT_RENAME(ztrans_clone)
+#define ztrans_close U_ICU_ENTRY_POINT_RENAME(ztrans_close)
+#define ztrans_equals U_ICU_ENTRY_POINT_RENAME(ztrans_equals)
+#define ztrans_getDynamicClassID U_ICU_ENTRY_POINT_RENAME(ztrans_getDynamicClassID)
+#define ztrans_getFrom U_ICU_ENTRY_POINT_RENAME(ztrans_getFrom)
+#define ztrans_getStaticClassID U_ICU_ENTRY_POINT_RENAME(ztrans_getStaticClassID)
+#define ztrans_getTime U_ICU_ENTRY_POINT_RENAME(ztrans_getTime)
+#define ztrans_getTo U_ICU_ENTRY_POINT_RENAME(ztrans_getTo)
+#define ztrans_open U_ICU_ENTRY_POINT_RENAME(ztrans_open)
+#define ztrans_openEmpty U_ICU_ENTRY_POINT_RENAME(ztrans_openEmpty)
+#define ztrans_setFrom U_ICU_ENTRY_POINT_RENAME(ztrans_setFrom)
+#define ztrans_setTime U_ICU_ENTRY_POINT_RENAME(ztrans_setTime)
+#define ztrans_setTo U_ICU_ENTRY_POINT_RENAME(ztrans_setTo)
+
+#endif
+
+#endif
diff --git a/vendor/icu/include/unicode/uscript.h b/vendor/icu/include/unicode/uscript.h
new file mode 100644
index 0000000000..3859d719a9
--- /dev/null
+++ b/vendor/icu/include/unicode/uscript.h
@@ -0,0 +1,675 @@
+// © 2016 and later: Unicode, Inc. and others.
+// License & terms of use: http://www.unicode.org/copyright.html
+/*
+ **********************************************************************
+ *   Copyright (C) 1997-2016, International Business Machines
+ *   Corporation and others.  All Rights Reserved.
+ **********************************************************************
+ *
+ * File USCRIPT.H
+ *
+ * Modification History:
+ *
+ *   Date        Name        Description
+ *   07/06/2001    Ram         Creation.
+ ******************************************************************************
+ */
+
+#ifndef USCRIPT_H
+#define USCRIPT_H
+#include <unicode/utypes.h>
+
+/**
+ * \file
+ * \brief C API: Unicode Script Information
+ */
+
+/**
+ * Constants for ISO 15924 script codes.
+ *
+ * The current set of script code constants supports at least all scripts
+ * that are encoded in the version of Unicode which ICU currently supports.
+ * The names of the constants are usually derived from the
+ * Unicode script property value aliases.
+ * See UAX #24 Unicode Script Property (http://www.unicode.org/reports/tr24/)
+ * and http://www.unicode.org/Public/UCD/latest/ucd/PropertyValueAliases.txt .
+ *
+ * In addition, constants for many ISO 15924 script codes
+ * are included, for use with language tags, CLDR data, and similar.
+ * Some of those codes are not used in the Unicode Character Database (UCD).
+ * For example, there are no characters that have a UCD script property value of
+ * Hans or Hant. All Han ideographs have the Hani script property value in Unicode.
+ *
+ * Private-use codes Qaaa..Qabx are not included, except as used in the UCD or in CLDR.
+ *
+ * Starting with ICU 55, script codes are only added when their scripts
+ * have been or will certainly be encoded in Unicode,
+ * and have been assigned Unicode script property value aliases,
+ * to ensure that their script names are stable and match the names of the constants.
+ * Script codes like Latf and Aran that are not subject to separate encoding
+ * may be added at any time.
+ *
+ * @stable ICU 2.2
+ */
+typedef enum UScriptCode {
+    /*
+     * Note: UScriptCode constants and their ISO script code comments
+     * are parsed by preparseucd.py.
+     * It matches lines like
+     *     USCRIPT_<Unicode Script value name> = <integer>,  / * <ISO script code> * /
+     */
+
+      /** @stable ICU 2.2 */
+      USCRIPT_INVALID_CODE = -1,
+      /** @stable ICU 2.2 */
+      USCRIPT_COMMON       =  0,  /* Zyyy */
+      /** @stable ICU 2.2 */
+      USCRIPT_INHERITED    =  1,  /* Zinh */ /* "Code for inherited script", for non-spacing combining marks; also Qaai */
+      /** @stable ICU 2.2 */
+      USCRIPT_ARABIC       =  2,  /* Arab */
+      /** @stable ICU 2.2 */
+      USCRIPT_ARMENIAN     =  3,  /* Armn */
+      /** @stable ICU 2.2 */
+      USCRIPT_BENGALI      =  4,  /* Beng */
+      /** @stable ICU 2.2 */
+      USCRIPT_BOPOMOFO     =  5,  /* Bopo */
+      /** @stable ICU 2.2 */
+      USCRIPT_CHEROKEE     =  6,  /* Cher */
+      /** @stable ICU 2.2 */
+      USCRIPT_COPTIC       =  7,  /* Copt */
+      /** @stable ICU 2.2 */
+      USCRIPT_CYRILLIC     =  8,  /* Cyrl */
+      /** @stable ICU 2.2 */
+      USCRIPT_DESERET      =  9,  /* Dsrt */
+      /** @stable ICU 2.2 */
+      USCRIPT_DEVANAGARI   = 10,  /* Deva */
+      /** @stable ICU 2.2 */
+      USCRIPT_ETHIOPIC     = 11,  /* Ethi */
+      /** @stable ICU 2.2 */
+      USCRIPT_GEORGIAN     = 12,  /* Geor */
+      /** @stable ICU 2.2 */
+      USCRIPT_GOTHIC       = 13,  /* Goth */
+      /** @stable ICU 2.2 */
+      USCRIPT_GREEK        = 14,  /* Grek */
+      /** @stable ICU 2.2 */
+      USCRIPT_GUJARATI     = 15,  /* Gujr */
+      /** @stable ICU 2.2 */
+      USCRIPT_GURMUKHI     = 16,  /* Guru */
+      /** @stable ICU 2.2 */
+      USCRIPT_HAN          = 17,  /* Hani */
+      /** @stable ICU 2.2 */
+      USCRIPT_HANGUL       = 18,  /* Hang */
+      /** @stable ICU 2.2 */
+      USCRIPT_HEBREW       = 19,  /* Hebr */
+      /** @stable ICU 2.2 */
+      USCRIPT_HIRAGANA     = 20,  /* Hira */
+      /** @stable ICU 2.2 */
+      USCRIPT_KANNADA      = 21,  /* Knda */
+      /** @stable ICU 2.2 */
+      USCRIPT_KATAKANA     = 22,  /* Kana */
+      /** @stable ICU 2.2 */
+      USCRIPT_KHMER        = 23,  /* Khmr */
+      /** @stable ICU 2.2 */
+      USCRIPT_LAO          = 24,  /* Laoo */
+      /** @stable ICU 2.2 */
+      USCRIPT_LATIN        = 25,  /* Latn */
+      /** @stable ICU 2.2 */
+      USCRIPT_MALAYALAM    = 26,  /* Mlym */
+      /** @stable ICU 2.2 */
+      USCRIPT_MONGOLIAN    = 27,  /* Mong */
+      /** @stable ICU 2.2 */
+      USCRIPT_MYANMAR      = 28,  /* Mymr */
+      /** @stable ICU 2.2 */
+      USCRIPT_OGHAM        = 29,  /* Ogam */
+      /** @stable ICU 2.2 */
+      USCRIPT_OLD_ITALIC   = 30,  /* Ital */
+      /** @stable ICU 2.2 */
+      USCRIPT_ORIYA        = 31,  /* Orya */
+      /** @stable ICU 2.2 */
+      USCRIPT_RUNIC        = 32,  /* Runr */
+      /** @stable ICU 2.2 */
+      USCRIPT_SINHALA      = 33,  /* Sinh */
+      /** @stable ICU 2.2 */
+      USCRIPT_SYRIAC       = 34,  /* Syrc */
+      /** @stable ICU 2.2 */
+      USCRIPT_TAMIL        = 35,  /* Taml */
+      /** @stable ICU 2.2 */
+      USCRIPT_TELUGU       = 36,  /* Telu */
+      /** @stable ICU 2.2 */
+      USCRIPT_THAANA       = 37,  /* Thaa */
+      /** @stable ICU 2.2 */
+      USCRIPT_THAI         = 38,  /* Thai */
+      /** @stable ICU 2.2 */
+      USCRIPT_TIBETAN      = 39,  /* Tibt */
+      /** Canadian_Aboriginal script. @stable ICU 2.6 */
+      USCRIPT_CANADIAN_ABORIGINAL = 40,  /* Cans */
+      /** Canadian_Aboriginal script (alias). @stable ICU 2.2 */
+      USCRIPT_UCAS         = USCRIPT_CANADIAN_ABORIGINAL,
+      /** @stable ICU 2.2 */
+      USCRIPT_YI           = 41,  /* Yiii */
+      /* New scripts in Unicode 3.2 */
+      /** @stable ICU 2.2 */
+      USCRIPT_TAGALOG      = 42,  /* Tglg */
+      /** @stable ICU 2.2 */
+      USCRIPT_HANUNOO      = 43,  /* Hano */
+      /** @stable ICU 2.2 */
+      USCRIPT_BUHID        = 44,  /* Buhd */
+      /** @stable ICU 2.2 */
+      USCRIPT_TAGBANWA     = 45,  /* Tagb */
+
+      /* New scripts in Unicode 4 */
+      /** @stable ICU 2.6 */
+      USCRIPT_BRAILLE      = 46,  /* Brai */
+      /** @stable ICU 2.6 */
+      USCRIPT_CYPRIOT      = 47,  /* Cprt */
+      /** @stable ICU 2.6 */
+      USCRIPT_LIMBU        = 48,  /* Limb */
+      /** @stable ICU 2.6 */
+      USCRIPT_LINEAR_B     = 49,  /* Linb */
+      /** @stable ICU 2.6 */
+      USCRIPT_OSMANYA      = 50,  /* Osma */
+      /** @stable ICU 2.6 */
+      USCRIPT_SHAVIAN      = 51,  /* Shaw */
+      /** @stable ICU 2.6 */
+      USCRIPT_TAI_LE       = 52,  /* Tale */
+      /** @stable ICU 2.6 */
+      USCRIPT_UGARITIC     = 53,  /* Ugar */
+
+      /** New script code in Unicode 4.0.1 @stable ICU 3.0 */
+      USCRIPT_KATAKANA_OR_HIRAGANA = 54,/*Hrkt */
+
+      /* New scripts in Unicode 4.1 */
+      /** @stable ICU 3.4 */
+      USCRIPT_BUGINESE      = 55, /* Bugi */
+      /** @stable ICU 3.4 */
+      USCRIPT_GLAGOLITIC    = 56, /* Glag */
+      /** @stable ICU 3.4 */
+      USCRIPT_KHAROSHTHI    = 57, /* Khar */
+      /** @stable ICU 3.4 */
+      USCRIPT_SYLOTI_NAGRI  = 58, /* Sylo */
+      /** @stable ICU 3.4 */
+      USCRIPT_NEW_TAI_LUE   = 59, /* Talu */
+      /** @stable ICU 3.4 */
+      USCRIPT_TIFINAGH      = 60, /* Tfng */
+      /** @stable ICU 3.4 */
+      USCRIPT_OLD_PERSIAN   = 61, /* Xpeo */
+
+      /* New script codes from Unicode and ISO 15924 */
+      /** @stable ICU 3.6 */
+      USCRIPT_BALINESE                      = 62, /* Bali */
+      /** @stable ICU 3.6 */
+      USCRIPT_BATAK                         = 63, /* Batk */
+      /** @stable ICU 3.6 */
+      USCRIPT_BLISSYMBOLS                   = 64, /* Blis */
+      /** @stable ICU 3.6 */
+      USCRIPT_BRAHMI                        = 65, /* Brah */
+      /** @stable ICU 3.6 */
+      USCRIPT_CHAM                          = 66, /* Cham */
+      /** @stable ICU 3.6 */
+      USCRIPT_CIRTH                         = 67, /* Cirt */
+      /** @stable ICU 3.6 */
+      USCRIPT_OLD_CHURCH_SLAVONIC_CYRILLIC  = 68, /* Cyrs */
+      /** @stable ICU 3.6 */
+      USCRIPT_DEMOTIC_EGYPTIAN              = 69, /* Egyd */
+      /** @stable ICU 3.6 */
+      USCRIPT_HIERATIC_EGYPTIAN             = 70, /* Egyh */
+      /** @stable ICU 3.6 */
+      USCRIPT_EGYPTIAN_HIEROGLYPHS          = 71, /* Egyp */
+      /** @stable ICU 3.6 */
+      USCRIPT_KHUTSURI                      = 72, /* Geok */
+      /** @stable ICU 3.6 */
+      USCRIPT_SIMPLIFIED_HAN                = 73, /* Hans */
+      /** @stable ICU 3.6 */
+      USCRIPT_TRADITIONAL_HAN               = 74, /* Hant */
+      /** @stable ICU 3.6 */
+      USCRIPT_PAHAWH_HMONG                  = 75, /* Hmng */
+      /** @stable ICU 3.6 */
+      USCRIPT_OLD_HUNGARIAN                 = 76, /* Hung */
+      /** @stable ICU 3.6 */
+      USCRIPT_HARAPPAN_INDUS                = 77, /* Inds */
+      /** @stable ICU 3.6 */
+      USCRIPT_JAVANESE                      = 78, /* Java */
+      /** @stable ICU 3.6 */
+      USCRIPT_KAYAH_LI                      = 79, /* Kali */
+      /** @stable ICU 3.6 */
+      USCRIPT_LATIN_FRAKTUR                 = 80, /* Latf */
+      /** @stable ICU 3.6 */
+      USCRIPT_LATIN_GAELIC                  = 81, /* Latg */
+      /** @stable ICU 3.6 */
+      USCRIPT_LEPCHA                        = 82, /* Lepc */
+      /** @stable ICU 3.6 */
+      USCRIPT_LINEAR_A                      = 83, /* Lina */
+      /** @stable ICU 4.6 */
+      USCRIPT_MANDAIC                       = 84, /* Mand */
+      /** @stable ICU 3.6 */
+      USCRIPT_MANDAEAN                      = USCRIPT_MANDAIC,
+      /** @stable ICU 3.6 */
+      USCRIPT_MAYAN_HIEROGLYPHS             = 85, /* Maya */
+      /** @stable ICU 4.6 */
+      USCRIPT_MEROITIC_HIEROGLYPHS          = 86, /* Mero */
+      /** @stable ICU 3.6 */
+      USCRIPT_MEROITIC                      = USCRIPT_MEROITIC_HIEROGLYPHS,
+      /** @stable ICU 3.6 */
+      USCRIPT_NKO                           = 87, /* Nkoo */
+      /** @stable ICU 3.6 */
+      USCRIPT_ORKHON                        = 88, /* Orkh */
+      /** @stable ICU 3.6 */
+      USCRIPT_OLD_PERMIC                    = 89, /* Perm */
+      /** @stable ICU 3.6 */
+      USCRIPT_PHAGS_PA                      = 90, /* Phag */
+      /** @stable ICU 3.6 */
+      USCRIPT_PHOENICIAN                    = 91, /* Phnx */
+      /** @stable ICU 52 */
+      USCRIPT_MIAO                          = 92, /* Plrd */
+      /** @stable ICU 3.6 */
+      USCRIPT_PHONETIC_POLLARD              = USCRIPT_MIAO,
+      /** @stable ICU 3.6 */
+      USCRIPT_RONGORONGO                    = 93, /* Roro */
+      /** @stable ICU 3.6 */
+      USCRIPT_SARATI                        = 94, /* Sara */
+      /** @stable ICU 3.6 */
+      USCRIPT_ESTRANGELO_SYRIAC             = 95, /* Syre */
+      /** @stable ICU 3.6 */
+      USCRIPT_WESTERN_SYRIAC                = 96, /* Syrj */
+      /** @stable ICU 3.6 */
+      USCRIPT_EASTERN_SYRIAC                = 97, /* Syrn */
+      /** @stable ICU 3.6 */
+      USCRIPT_TENGWAR                       = 98, /* Teng */
+      /** @stable ICU 3.6 */
+      USCRIPT_VAI                           = 99, /* Vaii */
+      /** @stable ICU 3.6 */
+      USCRIPT_VISIBLE_SPEECH                = 100,/* Visp */
+      /** @stable ICU 3.6 */
+      USCRIPT_CUNEIFORM                     = 101,/* Xsux */
+      /** @stable ICU 3.6 */
+      USCRIPT_UNWRITTEN_LANGUAGES           = 102,/* Zxxx */
+      /** @stable ICU 3.6 */
+      USCRIPT_UNKNOWN                       = 103,/* Zzzz */ /* Unknown="Code for uncoded script", for unassigned code points */
+
+      /** @stable ICU 3.8 */
+      USCRIPT_CARIAN                        = 104,/* Cari */
+      /** @stable ICU 3.8 */
+      USCRIPT_JAPANESE                      = 105,/* Jpan */
+      /** @stable ICU 3.8 */
+      USCRIPT_LANNA                         = 106,/* Lana */
+      /** @stable ICU 3.8 */
+      USCRIPT_LYCIAN                        = 107,/* Lyci */
+      /** @stable ICU 3.8 */
+      USCRIPT_LYDIAN                        = 108,/* Lydi */
+      /** @stable ICU 3.8 */
+      USCRIPT_OL_CHIKI                      = 109,/* Olck */
+      /** @stable ICU 3.8 */
+      USCRIPT_REJANG                        = 110,/* Rjng */
+      /** @stable ICU 3.8 */
+      USCRIPT_SAURASHTRA                    = 111,/* Saur */
+      /** Sutton SignWriting @stable ICU 3.8 */
+      USCRIPT_SIGN_WRITING                  = 112,/* Sgnw */
+      /** @stable ICU 3.8 */
+      USCRIPT_SUNDANESE                     = 113,/* Sund */
+      /** @stable ICU 3.8 */
+      USCRIPT_MOON                          = 114,/* Moon */
+      /** @stable ICU 3.8 */
+      USCRIPT_MEITEI_MAYEK                  = 115,/* Mtei */
+
+      /** @stable ICU 4.0 */
+      USCRIPT_IMPERIAL_ARAMAIC              = 116,/* Armi */
+      /** @stable ICU 4.0 */
+      USCRIPT_AVESTAN                       = 117,/* Avst */
+      /** @stable ICU 4.0 */
+      USCRIPT_CHAKMA                        = 118,/* Cakm */
+      /** @stable ICU 4.0 */
+      USCRIPT_KOREAN                        = 119,/* Kore */
+      /** @stable ICU 4.0 */
+      USCRIPT_KAITHI                        = 120,/* Kthi */
+      /** @stable ICU 4.0 */
+      USCRIPT_MANICHAEAN                    = 121,/* Mani */
+      /** @stable ICU 4.0 */
+      USCRIPT_INSCRIPTIONAL_PAHLAVI         = 122,/* Phli */
+      /** @stable ICU 4.0 */
+      USCRIPT_PSALTER_PAHLAVI               = 123,/* Phlp */
+      /** @stable ICU 4.0 */
+      USCRIPT_BOOK_PAHLAVI                  = 124,/* Phlv */
+      /** @stable ICU 4.0 */
+      USCRIPT_INSCRIPTIONAL_PARTHIAN        = 125,/* Prti */
+      /** @stable ICU 4.0 */
+      USCRIPT_SAMARITAN                     = 126,/* Samr */
+      /** @stable ICU 4.0 */
+      USCRIPT_TAI_VIET                      = 127,/* Tavt */
+      /** @stable ICU 4.0 */
+      USCRIPT_MATHEMATICAL_NOTATION         = 128,/* Zmth */
+      /** @stable ICU 4.0 */
+      USCRIPT_SYMBOLS                       = 129,/* Zsym */
+
+      /** @stable ICU 4.4 */
+      USCRIPT_BAMUM                         = 130,/* Bamu */
+      /** @stable ICU 4.4 */
+      USCRIPT_LISU                          = 131,/* Lisu */
+      /** @stable ICU 4.4 */
+      USCRIPT_NAKHI_GEBA                    = 132,/* Nkgb */
+      /** @stable ICU 4.4 */
+      USCRIPT_OLD_SOUTH_ARABIAN             = 133,/* Sarb */
+
+      /** @stable ICU 4.6 */
+      USCRIPT_BASSA_VAH                     = 134,/* Bass */
+      /** @stable ICU 54 */
+      USCRIPT_DUPLOYAN                      = 135,/* Dupl */
+#ifndef U_HIDE_DEPRECATED_API
+      /** @deprecated ICU 54 Typo, use USCRIPT_DUPLOYAN */
+      USCRIPT_DUPLOYAN_SHORTAND             = USCRIPT_DUPLOYAN,
+#endif  /* U_HIDE_DEPRECATED_API */
+      /** @stable ICU 4.6 */
+      USCRIPT_ELBASAN                       = 136,/* Elba */
+      /** @stable ICU 4.6 */
+      USCRIPT_GRANTHA                       = 137,/* Gran */
+      /** @stable ICU 4.6 */
+      USCRIPT_KPELLE                        = 138,/* Kpel */
+      /** @stable ICU 4.6 */
+      USCRIPT_LOMA                          = 139,/* Loma */
+      /** Mende Kikakui @stable ICU 4.6 */
+      USCRIPT_MENDE                         = 140,/* Mend */
+      /** @stable ICU 4.6 */
+      USCRIPT_MEROITIC_CURSIVE              = 141,/* Merc */
+      /** @stable ICU 4.6 */
+      USCRIPT_OLD_NORTH_ARABIAN             = 142,/* Narb */
+      /** @stable ICU 4.6 */
+      USCRIPT_NABATAEAN                     = 143,/* Nbat */
+      /** @stable ICU 4.6 */
+      USCRIPT_PALMYRENE                     = 144,/* Palm */
+      /** @stable ICU 54 */
+      USCRIPT_KHUDAWADI                     = 145,/* Sind */
+      /** @stable ICU 4.6 */
+      USCRIPT_SINDHI                        = USCRIPT_KHUDAWADI,
+      /** @stable ICU 4.6 */
+      USCRIPT_WARANG_CITI                   = 146,/* Wara */
+
+      /** @stable ICU 4.8 */
+      USCRIPT_AFAKA                         = 147,/* Afak */
+      /** @stable ICU 4.8 */
+      USCRIPT_JURCHEN                       = 148,/* Jurc */
+      /** @stable ICU 4.8 */
+      USCRIPT_MRO                           = 149,/* Mroo */
+      /** @stable ICU 4.8 */
+      USCRIPT_NUSHU                         = 150,/* Nshu */
+      /** @stable ICU 4.8 */
+      USCRIPT_SHARADA                       = 151,/* Shrd */
+      /** @stable ICU 4.8 */
+      USCRIPT_SORA_SOMPENG                  = 152,/* Sora */
+      /** @stable ICU 4.8 */
+      USCRIPT_TAKRI                         = 153,/* Takr */
+      /** @stable ICU 4.8 */
+      USCRIPT_TANGUT                        = 154,/* Tang */
+      /** @stable ICU 4.8 */
+      USCRIPT_WOLEAI                        = 155,/* Wole */
+
+      /** @stable ICU 49 */
+      USCRIPT_ANATOLIAN_HIEROGLYPHS         = 156,/* Hluw */
+      /** @stable ICU 49 */
+      USCRIPT_KHOJKI                        = 157,/* Khoj */
+      /** @stable ICU 49 */
+      USCRIPT_TIRHUTA                       = 158,/* Tirh */
+
+      /** @stable ICU 52 */
+      USCRIPT_CAUCASIAN_ALBANIAN            = 159,/* Aghb */
+      /** @stable ICU 52 */
+      USCRIPT_MAHAJANI                      = 160,/* Mahj */
+
+      /** @stable ICU 54 */
+      USCRIPT_AHOM                          = 161,/* Ahom */
+      /** @stable ICU 54 */
+      USCRIPT_HATRAN                        = 162,/* Hatr */
+      /** @stable ICU 54 */
+      USCRIPT_MODI                          = 163,/* Modi */
+      /** @stable ICU 54 */
+      USCRIPT_MULTANI                       = 164,/* Mult */
+      /** @stable ICU 54 */
+      USCRIPT_PAU_CIN_HAU                   = 165,/* Pauc */
+      /** @stable ICU 54 */
+      USCRIPT_SIDDHAM                       = 166,/* Sidd */
+
+      /** @stable ICU 58 */
+      USCRIPT_ADLAM                         = 167,/* Adlm */
+      /** @stable ICU 58 */
+      USCRIPT_BHAIKSUKI                     = 168,/* Bhks */
+      /** @stable ICU 58 */
+      USCRIPT_MARCHEN                       = 169,/* Marc */
+      /** @stable ICU 58 */
+      USCRIPT_NEWA                          = 170,/* Newa */
+      /** @stable ICU 58 */
+      USCRIPT_OSAGE                         = 171,/* Osge */
+
+      /** @stable ICU 58 */
+      USCRIPT_HAN_WITH_BOPOMOFO             = 172,/* Hanb */
+      /** @stable ICU 58 */
+      USCRIPT_JAMO                          = 173,/* Jamo */
+      /** @stable ICU 58 */
+      USCRIPT_SYMBOLS_EMOJI                 = 174,/* Zsye */
+
+      /** @stable ICU 60 */
+      USCRIPT_MASARAM_GONDI                 = 175,/* Gonm */
+      /** @stable ICU 60 */
+      USCRIPT_SOYOMBO                       = 176,/* Soyo */
+      /** @stable ICU 60 */
+      USCRIPT_ZANABAZAR_SQUARE              = 177,/* Zanb */
+
+#ifndef U_HIDE_DEPRECATED_API
+    /**
+     * One more than the highest normal UScriptCode value.
+     * The highest value is available via u_getIntPropertyMaxValue(UCHAR_SCRIPT).
+     *
+     * @deprecated ICU 58 The numeric value may change over time, see ICU ticket #12420.
+     */
+    USCRIPT_CODE_LIMIT    = 178
+#endif  // U_HIDE_DEPRECATED_API
+} UScriptCode;
+
+/**
+ * Gets the script codes associated with the given locale or ISO 15924 abbreviation or name.
+ * Fills in USCRIPT_MALAYALAM given "Malayam" OR "Mlym".
+ * Fills in USCRIPT_LATIN given "en" OR "en_US"
+ * If the required capacity is greater than the capacity of the destination buffer,
+ * then the error code is set to U_BUFFER_OVERFLOW_ERROR and the required capacity is returned.
+ *
+ * <p>Note: To search by short or long script alias only, use
+ * u_getPropertyValueEnum(UCHAR_SCRIPT, alias) instead.  That does
+ * a fast lookup with no access of the locale data.
+ *
+ * @param nameOrAbbrOrLocale name of the script, as given in
+ * PropertyValueAliases.txt, or ISO 15924 code or locale
+ * @param fillIn the UScriptCode buffer to fill in the script code
+ * @param capacity the capacity (size) of UScriptCode buffer passed in.
+ * @param err the error status code.
+ * @return The number of script codes filled in the buffer passed in
+ * @stable ICU 2.4
+ */
+U_STABLE int32_t  U_EXPORT2
+uscript_getCode(const char* nameOrAbbrOrLocale,UScriptCode* fillIn,int32_t capacity,UErrorCode *err);
+
+/**
+ * Returns the long Unicode script name, if there is one.
+ * Otherwise returns the 4-letter ISO 15924 script code.
+ * Returns "Malayam" given USCRIPT_MALAYALAM.
+ *
+ * @param scriptCode UScriptCode enum
+ * @return long script name as given in PropertyValueAliases.txt, or the 4-letter code,
+ * or NULL if scriptCode is invalid
+ * @stable ICU 2.4
+ */
+U_STABLE const char*  U_EXPORT2
+uscript_getName(UScriptCode scriptCode);
+
+/**
+ * Returns the 4-letter ISO 15924 script code,
+ * which is the same as the short Unicode script name if Unicode has names for the script.
+ * Returns "Mlym" given USCRIPT_MALAYALAM.
+ *
+ * @param scriptCode UScriptCode enum
+ * @return short script name (4-letter code), or NULL if scriptCode is invalid
+ * @stable ICU 2.4
+ */
+U_STABLE const char*  U_EXPORT2
+uscript_getShortName(UScriptCode scriptCode);
+
+/**
+ * Gets the script code associated with the given codepoint.
+ * Returns USCRIPT_MALAYALAM given 0x0D02
+ * @param codepoint UChar32 codepoint
+ * @param err the error status code.
+ * @return The UScriptCode, or 0 if codepoint is invalid
+ * @stable ICU 2.4
+ */
+U_STABLE UScriptCode  U_EXPORT2
+uscript_getScript(UChar32 codepoint, UErrorCode *err);
+
+/**
+ * Do the Script_Extensions of code point c contain script sc?
+ * If c does not have explicit Script_Extensions, then this tests whether
+ * c has the Script property value sc.
+ *
+ * Some characters are commonly used in multiple scripts.
+ * For more information, see UAX #24: http://www.unicode.org/reports/tr24/.
+ * @param c code point
+ * @param sc script code
+ * @return TRUE if sc is in Script_Extensions(c)
+ * @stable ICU 49
+ */
+U_STABLE UBool U_EXPORT2
+uscript_hasScript(UChar32 c, UScriptCode sc);
+
+/**
+ * Writes code point c's Script_Extensions as a list of UScriptCode values
+ * to the output scripts array and returns the number of script codes.
+ * - If c does have Script_Extensions, then the Script property value
+ *   (normally Common or Inherited) is not included.
+ * - If c does not have Script_Extensions, then the one Script code is written to the output array.
+ * - If c is not a valid code point, then the one USCRIPT_UNKNOWN code is written.
+ * In other words, if the return value is 1,
+ * then the output array contains exactly c's single Script code.
+ * If the return value is n>=2, then the output array contains c's n Script_Extensions script codes.
+ *
+ * Some characters are commonly used in multiple scripts.
+ * For more information, see UAX #24: http://www.unicode.org/reports/tr24/.
+ *
+ * If there are more than capacity script codes to be written, then
+ * U_BUFFER_OVERFLOW_ERROR is set and the number of Script_Extensions is returned.
+ * (Usual ICU buffer handling behavior.)
+ *
+ * @param c code point
+ * @param scripts output script code array
+ * @param capacity capacity of the scripts array
+ * @param errorCode Standard ICU error code. Its input value must
+ *                  pass the U_SUCCESS() test, or else the function returns
+ *                  immediately. Check for U_FAILURE() on output or use with
+ *                  function chaining. (See User Guide for details.)
+ * @return number of script codes in c's Script_Extensions, or 1 for the single Script value,
+ *         written to scripts unless U_BUFFER_OVERFLOW_ERROR indicates insufficient capacity
+ * @stable ICU 49
+ */
+U_STABLE int32_t U_EXPORT2
+uscript_getScriptExtensions(UChar32 c,
+                            UScriptCode *scripts, int32_t capacity,
+                            UErrorCode *errorCode);
+
+/**
+ * Script usage constants.
+ * See UAX #31 Unicode Identifier and Pattern Syntax.
+ * http://www.unicode.org/reports/tr31/#Table_Candidate_Characters_for_Exclusion_from_Identifiers
+ *
+ * @stable ICU 51
+ */
+typedef enum UScriptUsage {
+    /** Not encoded in Unicode. @stable ICU 51 */
+    USCRIPT_USAGE_NOT_ENCODED,
+    /** Unknown script usage. @stable ICU 51 */
+    USCRIPT_USAGE_UNKNOWN,
+    /** Candidate for Exclusion from Identifiers. @stable ICU 51 */
+    USCRIPT_USAGE_EXCLUDED,
+    /** Limited Use script. @stable ICU 51 */
+    USCRIPT_USAGE_LIMITED_USE,
+    /** Aspirational Use script. @stable ICU 51 */
+    USCRIPT_USAGE_ASPIRATIONAL,
+    /** Recommended script. @stable ICU 51 */
+    USCRIPT_USAGE_RECOMMENDED
+} UScriptUsage;
+
+/**
+ * Writes the script sample character string.
+ * This string normally consists of one code point but might be longer.
+ * The string is empty if the script is not encoded.
+ *
+ * @param script script code
+ * @param dest output string array
+ * @param capacity number of UChars in the dest array
+ * @param pErrorCode standard ICU in/out error code, must pass U_SUCCESS() on input
+ * @return the string length, even if U_BUFFER_OVERFLOW_ERROR
+ * @stable ICU 51
+ */
+U_STABLE int32_t U_EXPORT2
+uscript_getSampleString(UScriptCode script, UChar *dest, int32_t capacity, UErrorCode *pErrorCode);
+
+#if U_SHOW_CPLUSPLUS_API
+
+U_NAMESPACE_BEGIN
+class UnicodeString;
+U_NAMESPACE_END
+
+/**
+ * Returns the script sample character string.
+ * This string normally consists of one code point but might be longer.
+ * The string is empty if the script is not encoded.
+ *
+ * @param script script code
+ * @return the sample character string
+ * @stable ICU 51
+ */
+U_COMMON_API icu::UnicodeString U_EXPORT2
+uscript_getSampleUnicodeString(UScriptCode script);
+
+#endif
+
+/**
+ * Returns the script usage according to UAX #31 Unicode Identifier and Pattern Syntax.
+ * Returns USCRIPT_USAGE_NOT_ENCODED if the script is not encoded in Unicode.
+ *
+ * @param script script code
+ * @return script usage
+ * @see UScriptUsage
+ * @stable ICU 51
+ */
+U_STABLE UScriptUsage U_EXPORT2
+uscript_getUsage(UScriptCode script);
+
+/**
+ * Returns TRUE if the script is written right-to-left.
+ * For example, Arab and Hebr.
+ *
+ * @param script script code
+ * @return TRUE if the script is right-to-left
+ * @stable ICU 51
+ */
+U_STABLE UBool U_EXPORT2
+uscript_isRightToLeft(UScriptCode script);
+
+/**
+ * Returns TRUE if the script allows line breaks between letters (excluding hyphenation).
+ * Such a script typically requires dictionary-based line breaking.
+ * For example, Hani and Thai.
+ *
+ * @param script script code
+ * @return TRUE if the script allows line breaks between letters
+ * @stable ICU 51
+ */
+U_STABLE UBool U_EXPORT2
+uscript_breaksBetweenLetters(UScriptCode script);
+
+/**
+ * Returns TRUE if in modern (or most recent) usage of the script case distinctions are customary.
+ * For example, Latn and Cyrl.
+ *
+ * @param script script code
+ * @return TRUE if the script is cased
+ * @stable ICU 51
+ */
+U_STABLE UBool U_EXPORT2
+uscript_isCased(UScriptCode script);
+
+#endif
diff --git a/vendor/icu/include/unicode/uset.h b/vendor/icu/include/unicode/uset.h
new file mode 100644
index 0000000000..3c1ee4906b
--- /dev/null
+++ b/vendor/icu/include/unicode/uset.h
@@ -0,0 +1,1130 @@
+// © 2016 and later: Unicode, Inc. and others.
+// License & terms of use: http://www.unicode.org/copyright.html
+/*
+*******************************************************************************
+*
+*   Copyright (C) 2002-2014, International Business Machines
+*   Corporation and others.  All Rights Reserved.
+*
+*******************************************************************************
+*   file name:  uset.h
+*   encoding:   UTF-8
+*   tab size:   8 (not used)
+*   indentation:4
+*
+*   created on: 2002mar07
+*   created by: Markus W. Scherer
+*
+*   C version of UnicodeSet.
+*/
+
+
+/**
+ * \file
+ * \brief C API: Unicode Set
+ *
+ * <p>This is a C wrapper around the C++ UnicodeSet class.</p>
+ */
+
+#ifndef __USET_H__
+#define __USET_H__
+
+#include <unicode/utypes.h>
+#include <unicode/uchar.h>
+#include <unicode/localpointer.h>
+
+#ifndef UCNV_H
+struct USet;
+/**
+ * A UnicodeSet.  Use the uset_* API to manipulate.  Create with
+ * uset_open*, and destroy with uset_close.
+ * @stable ICU 2.4
+ */
+typedef struct USet USet;
+#endif
+
+/**
+ * Bitmask values to be passed to uset_openPatternOptions() or
+ * uset_applyPattern() taking an option parameter.
+ * @stable ICU 2.4
+ */
+enum {
+    /**
+     * Ignore white space within patterns unless quoted or escaped.
+     * @stable ICU 2.4
+     */
+    USET_IGNORE_SPACE = 1,  
+
+    /**
+     * Enable case insensitive matching.  E.g., "[ab]" with this flag
+     * will match 'a', 'A', 'b', and 'B'.  "[^ab]" with this flag will
+     * match all except 'a', 'A', 'b', and 'B'. This performs a full
+     * closure over case mappings, e.g. U+017F for s.
+     *
+     * The resulting set is a superset of the input for the code points but
+     * not for the strings.
+     * It performs a case mapping closure of the code points and adds
+     * full case folding strings for the code points, and reduces strings of
+     * the original set to their full case folding equivalents.
+     *
+     * This is designed for case-insensitive matches, for example
+     * in regular expressions. The full code point case closure allows checking of
+     * an input character directly against the closure set.
+     * Strings are matched by comparing the case-folded form from the closure
+     * set with an incremental case folding of the string in question.
+     *
+     * The closure set will also contain single code points if the original
+     * set contained case-equivalent strings (like U+00DF for "ss" or "Ss" etc.).
+     * This is not necessary (that is, redundant) for the above matching method
+     * but results in the same closure sets regardless of whether the original
+     * set contained the code point or a string.
+     *
+     * @stable ICU 2.4
+     */
+    USET_CASE_INSENSITIVE = 2,  
+
+    /**
+     * Enable case insensitive matching.  E.g., "[ab]" with this flag
+     * will match 'a', 'A', 'b', and 'B'.  "[^ab]" with this flag will
+     * match all except 'a', 'A', 'b', and 'B'. This adds the lower-,
+     * title-, and uppercase mappings as well as the case folding
+     * of each existing element in the set.
+     * @stable ICU 3.2
+     */
+    USET_ADD_CASE_MAPPINGS = 4
+};
+
+/**
+ * Argument values for whether span() and similar functions continue while
+ * the current character is contained vs. not contained in the set.
+ *
+ * The functionality is straightforward for sets with only single code points,
+ * without strings (which is the common case):
+ * - USET_SPAN_CONTAINED and USET_SPAN_SIMPLE work the same.
+ * - USET_SPAN_CONTAINED and USET_SPAN_SIMPLE are inverses of USET_SPAN_NOT_CONTAINED.
+ * - span() and spanBack() partition any string the same way when
+ *   alternating between span(USET_SPAN_NOT_CONTAINED) and
+ *   span(either "contained" condition).
+ * - Using a complemented (inverted) set and the opposite span conditions
+ *   yields the same results.
+ *
+ * When a set contains multi-code point strings, then these statements may not
+ * be true, depending on the strings in the set (for example, whether they
+ * overlap with each other) and the string that is processed.
+ * For a set with strings:
+ * - The complement of the set contains the opposite set of code points,
+ *   but the same set of strings.
+ *   Therefore, complementing both the set and the span conditions
+ *   may yield different results.
+ * - When starting spans at different positions in a string
+ *   (span(s, ...) vs. span(s+1, ...)) the ends of the spans may be different
+ *   because a set string may start before the later position.
+ * - span(USET_SPAN_SIMPLE) may be shorter than
+ *   span(USET_SPAN_CONTAINED) because it will not recursively try
+ *   all possible paths.
+ *   For example, with a set which contains the three strings "xy", "xya" and "ax",
+ *   span("xyax", USET_SPAN_CONTAINED) will return 4 but
+ *   span("xyax", USET_SPAN_SIMPLE) will return 3.
+ *   span(USET_SPAN_SIMPLE) will never be longer than
+ *   span(USET_SPAN_CONTAINED).
+ * - With either "contained" condition, span() and spanBack() may partition
+ *   a string in different ways.
+ *   For example, with a set which contains the two strings "ab" and "ba",
+ *   and when processing the string "aba",
+ *   span() will yield contained/not-contained boundaries of { 0, 2, 3 }
+ *   while spanBack() will yield boundaries of { 0, 1, 3 }.
+ *
+ * Note: If it is important to get the same boundaries whether iterating forward
+ * or backward through a string, then either only span() should be used and
+ * the boundaries cached for backward operation, or an ICU BreakIterator
+ * could be used.
+ *
+ * Note: Unpaired surrogates are treated like surrogate code points.
+ * Similarly, set strings match only on code point boundaries,
+ * never in the middle of a surrogate pair.
+ * Illegal UTF-8 sequences are treated like U+FFFD.
+ * When processing UTF-8 strings, malformed set strings
+ * (strings with unpaired surrogates which cannot be converted to UTF-8)
+ * are ignored.
+ *
+ * @stable ICU 3.8
+ */
+typedef enum USetSpanCondition {
+    /**
+     * Continues a span() while there is no set element at the current position.
+     * Increments by one code point at a time.
+     * Stops before the first set element (character or string).
+     * (For code points only, this is like while contains(current)==FALSE).
+     *
+     * When span() returns, the substring between where it started and the position
+     * it returned consists only of characters that are not in the set,
+     * and none of its strings overlap with the span.
+     *
+     * @stable ICU 3.8
+     */
+    USET_SPAN_NOT_CONTAINED = 0,
+    /**
+     * Spans the longest substring that is a concatenation of set elements (characters or strings).
+     * (For characters only, this is like while contains(current)==TRUE).
+     *
+     * When span() returns, the substring between where it started and the position
+     * it returned consists only of set elements (characters or strings) that are in the set.
+     *
+     * If a set contains strings, then the span will be the longest substring for which there
+     * exists at least one non-overlapping concatenation of set elements (characters or strings).
+     * This is equivalent to a POSIX regular expression for <code>(OR of each set element)*</code>.
+     * (Java/ICU/Perl regex stops at the first match of an OR.)
+     *
+     * @stable ICU 3.8
+     */
+    USET_SPAN_CONTAINED = 1,
+    /**
+     * Continues a span() while there is a set element at the current position.
+     * Increments by the longest matching element at each position.
+     * (For characters only, this is like while contains(current)==TRUE).
+     *
+     * When span() returns, the substring between where it started and the position
+     * it returned consists only of set elements (characters or strings) that are in the set.
+     *
+     * If a set only contains single characters, then this is the same
+     * as USET_SPAN_CONTAINED.
+     *
+     * If a set contains strings, then the span will be the longest substring
+     * with a match at each position with the longest single set element (character or string).
+     *
+     * Use this span condition together with other longest-match algorithms,
+     * such as ICU converters (ucnv_getUnicodeSet()).
+     *
+     * @stable ICU 3.8
+     */
+    USET_SPAN_SIMPLE = 2,
+#ifndef U_HIDE_DEPRECATED_API
+    /**
+     * One more than the last span condition.
+     * @deprecated ICU 58 The numeric value may change over time, see ICU ticket #12420.
+     */
+    USET_SPAN_CONDITION_COUNT
+#endif  // U_HIDE_DEPRECATED_API
+} USetSpanCondition;
+
+enum {
+    /**
+     * Capacity of USerializedSet::staticArray.
+     * Enough for any single-code point set.
+     * Also provides padding for nice sizeof(USerializedSet).
+     * @stable ICU 2.4
+     */
+    USET_SERIALIZED_STATIC_ARRAY_CAPACITY=8
+};
+
+/**
+ * A serialized form of a Unicode set.  Limited manipulations are
+ * possible directly on a serialized set.  See below.
+ * @stable ICU 2.4
+ */
+typedef struct USerializedSet {
+    /**
+     * The serialized Unicode Set.
+     * @stable ICU 2.4
+     */
+    const uint16_t *array;
+    /**
+     * The length of the array that contains BMP characters.
+     * @stable ICU 2.4
+     */
+    int32_t bmpLength;
+    /**
+     * The total length of the array.
+     * @stable ICU 2.4
+     */
+    int32_t length;
+    /**
+     * A small buffer for the array to reduce memory allocations.
+     * @stable ICU 2.4
+     */
+    uint16_t staticArray[USET_SERIALIZED_STATIC_ARRAY_CAPACITY];
+} USerializedSet;
+
+/*********************************************************************
+ * USet API
+ *********************************************************************/
+
+/**
+ * Create an empty USet object.
+ * Equivalent to uset_open(1, 0).
+ * @return a newly created USet.  The caller must call uset_close() on
+ * it when done.
+ * @stable ICU 4.2
+ */
+U_STABLE USet* U_EXPORT2
+uset_openEmpty(void);
+
+/**
+ * Creates a USet object that contains the range of characters
+ * start..end, inclusive.  If <code>start > end</code> 
+ * then an empty set is created (same as using uset_openEmpty()).
+ * @param start first character of the range, inclusive
+ * @param end last character of the range, inclusive
+ * @return a newly created USet.  The caller must call uset_close() on
+ * it when done.
+ * @stable ICU 2.4
+ */
+U_STABLE USet* U_EXPORT2
+uset_open(UChar32 start, UChar32 end);
+
+/**
+ * Creates a set from the given pattern.  See the UnicodeSet class
+ * description for the syntax of the pattern language.
+ * @param pattern a string specifying what characters are in the set
+ * @param patternLength the length of the pattern, or -1 if null
+ * terminated
+ * @param ec the error code
+ * @stable ICU 2.4
+ */
+U_STABLE USet* U_EXPORT2
+uset_openPattern(const UChar* pattern, int32_t patternLength,
+                 UErrorCode* ec);
+
+/**
+ * Creates a set from the given pattern.  See the UnicodeSet class
+ * description for the syntax of the pattern language.
+ * @param pattern a string specifying what characters are in the set
+ * @param patternLength the length of the pattern, or -1 if null
+ * terminated
+ * @param options bitmask for options to apply to the pattern.
+ * Valid options are USET_IGNORE_SPACE and USET_CASE_INSENSITIVE.
+ * @param ec the error code
+ * @stable ICU 2.4
+ */
+U_STABLE USet* U_EXPORT2
+uset_openPatternOptions(const UChar* pattern, int32_t patternLength,
+                 uint32_t options,
+                 UErrorCode* ec);
+
+/**
+ * Disposes of the storage used by a USet object.  This function should
+ * be called exactly once for objects returned by uset_open().
+ * @param set the object to dispose of
+ * @stable ICU 2.4
+ */
+U_STABLE void U_EXPORT2
+uset_close(USet* set);
+
+#if U_SHOW_CPLUSPLUS_API
+
+U_NAMESPACE_BEGIN
+
+/**
+ * \class LocalUSetPointer
+ * "Smart pointer" class, closes a USet via uset_close().
+ * For most methods see the LocalPointerBase base class.
+ *
+ * @see LocalPointerBase
+ * @see LocalPointer
+ * @stable ICU 4.4
+ */
+U_DEFINE_LOCAL_OPEN_POINTER(LocalUSetPointer, USet, uset_close);
+
+U_NAMESPACE_END
+
+#endif
+
+/**
+ * Returns a copy of this object.
+ * If this set is frozen, then the clone will be frozen as well.
+ * Use uset_cloneAsThawed() for a mutable clone of a frozen set.
+ * @param set the original set
+ * @return the newly allocated copy of the set
+ * @see uset_cloneAsThawed
+ * @stable ICU 3.8
+ */
+U_STABLE USet * U_EXPORT2
+uset_clone(const USet *set);
+
+/**
+ * Determines whether the set has been frozen (made immutable) or not.
+ * See the ICU4J Freezable interface for details.
+ * @param set the set
+ * @return TRUE/FALSE for whether the set has been frozen
+ * @see uset_freeze
+ * @see uset_cloneAsThawed
+ * @stable ICU 3.8
+ */
+U_STABLE UBool U_EXPORT2
+uset_isFrozen(const USet *set);
+
+/**
+ * Freeze the set (make it immutable).
+ * Once frozen, it cannot be unfrozen and is therefore thread-safe
+ * until it is deleted.
+ * See the ICU4J Freezable interface for details.
+ * Freezing the set may also make some operations faster, for example
+ * uset_contains() and uset_span().
+ * A frozen set will not be modified. (It remains frozen.)
+ * @param set the set
+ * @return the same set, now frozen
+ * @see uset_isFrozen
+ * @see uset_cloneAsThawed
+ * @stable ICU 3.8
+ */
+U_STABLE void U_EXPORT2
+uset_freeze(USet *set);
+
+/**
+ * Clone the set and make the clone mutable.
+ * See the ICU4J Freezable interface for details.
+ * @param set the set
+ * @return the mutable clone
+ * @see uset_freeze
+ * @see uset_isFrozen
+ * @see uset_clone
+ * @stable ICU 3.8
+ */
+U_STABLE USet * U_EXPORT2
+uset_cloneAsThawed(const USet *set);
+
+/**
+ * Causes the USet object to represent the range <code>start - end</code>.
+ * If <code>start > end</code> then this USet is set to an empty range.
+ * A frozen set will not be modified.
+ * @param set the object to set to the given range
+ * @param start first character in the set, inclusive
+ * @param end last character in the set, inclusive
+ * @stable ICU 3.2
+ */
+U_STABLE void U_EXPORT2
+uset_set(USet* set,
+         UChar32 start, UChar32 end);
+
+/**
+ * Modifies the set to represent the set specified by the given
+ * pattern. See the UnicodeSet class description for the syntax of 
+ * the pattern language. See also the User Guide chapter about UnicodeSet.
+ * <em>Empties the set passed before applying the pattern.</em>
+ * A frozen set will not be modified.
+ * @param set               The set to which the pattern is to be applied. 
+ * @param pattern           A pointer to UChar string specifying what characters are in the set.
+ *                          The character at pattern[0] must be a '['.
+ * @param patternLength     The length of the UChar string. -1 if NUL terminated.
+ * @param options           A bitmask for options to apply to the pattern.
+ *                          Valid options are USET_IGNORE_SPACE and USET_CASE_INSENSITIVE.
+ * @param status            Returns an error if the pattern cannot be parsed.
+ * @return                  Upon successful parse, the value is either
+ *                          the index of the character after the closing ']' 
+ *                          of the parsed pattern.
+ *                          If the status code indicates failure, then the return value 
+ *                          is the index of the error in the source.
+ *
+ * @stable ICU 2.8
+ */
+U_STABLE int32_t U_EXPORT2 
+uset_applyPattern(USet *set,
+                  const UChar *pattern, int32_t patternLength,
+                  uint32_t options,
+                  UErrorCode *status);
+
+/**
+ * Modifies the set to contain those code points which have the given value
+ * for the given binary or enumerated property, as returned by
+ * u_getIntPropertyValue.  Prior contents of this set are lost.
+ * A frozen set will not be modified.
+ *
+ * @param set the object to contain the code points defined by the property
+ *
+ * @param prop a property in the range UCHAR_BIN_START..UCHAR_BIN_LIMIT-1
+ * or UCHAR_INT_START..UCHAR_INT_LIMIT-1
+ * or UCHAR_MASK_START..UCHAR_MASK_LIMIT-1.
+ *
+ * @param value a value in the range u_getIntPropertyMinValue(prop)..
+ * u_getIntPropertyMaxValue(prop), with one exception.  If prop is
+ * UCHAR_GENERAL_CATEGORY_MASK, then value should not be a UCharCategory, but
+ * rather a mask value produced by U_GET_GC_MASK().  This allows grouped
+ * categories such as [:L:] to be represented.
+ *
+ * @param ec error code input/output parameter
+ *
+ * @stable ICU 3.2
+ */
+U_STABLE void U_EXPORT2
+uset_applyIntPropertyValue(USet* set,
+                           UProperty prop, int32_t value, UErrorCode* ec);
+
+/**
+ * Modifies the set to contain those code points which have the
+ * given value for the given property.  Prior contents of this
+ * set are lost.
+ * A frozen set will not be modified.
+ *
+ * @param set the object to contain the code points defined by the given
+ * property and value alias
+ *
+ * @param prop a string specifying a property alias, either short or long.
+ * The name is matched loosely.  See PropertyAliases.txt for names and a
+ * description of loose matching.  If the value string is empty, then this
+ * string is interpreted as either a General_Category value alias, a Script
+ * value alias, a binary property alias, or a special ID.  Special IDs are
+ * matched loosely and correspond to the following sets:
+ *
+ * "ANY" = [\\u0000-\\U0010FFFF],
+ * "ASCII" = [\\u0000-\\u007F],
+ * "Assigned" = [:^Cn:].
+ *
+ * @param propLength the length of the prop, or -1 if NULL
+ *
+ * @param value a string specifying a value alias, either short or long.
+ * The name is matched loosely.  See PropertyValueAliases.txt for names
+ * and a description of loose matching.  In addition to aliases listed,
+ * numeric values and canonical combining classes may be expressed
+ * numerically, e.g., ("nv", "0.5") or ("ccc", "220").  The value string
+ * may also be empty.
+ *
+ * @param valueLength the length of the value, or -1 if NULL
+ *
+ * @param ec error code input/output parameter
+ *
+ * @stable ICU 3.2
+ */
+U_STABLE void U_EXPORT2
+uset_applyPropertyAlias(USet* set,
+                        const UChar *prop, int32_t propLength,
+                        const UChar *value, int32_t valueLength,
+                        UErrorCode* ec);
+
+/**
+ * Return true if the given position, in the given pattern, appears
+ * to be the start of a UnicodeSet pattern.
+ *
+ * @param pattern a string specifying the pattern
+ * @param patternLength the length of the pattern, or -1 if NULL
+ * @param pos the given position
+ * @stable ICU 3.2
+ */
+U_STABLE UBool U_EXPORT2
+uset_resemblesPattern(const UChar *pattern, int32_t patternLength,
+                      int32_t pos);
+
+/**
+ * Returns a string representation of this set.  If the result of
+ * calling this function is passed to a uset_openPattern(), it
+ * will produce another set that is equal to this one.
+ * @param set the set
+ * @param result the string to receive the rules, may be NULL
+ * @param resultCapacity the capacity of result, may be 0 if result is NULL
+ * @param escapeUnprintable if TRUE then convert unprintable
+ * character to their hex escape representations, \\uxxxx or
+ * \\Uxxxxxxxx.  Unprintable characters are those other than
+ * U+000A, U+0020..U+007E.
+ * @param ec error code.
+ * @return length of string, possibly larger than resultCapacity
+ * @stable ICU 2.4
+ */
+U_STABLE int32_t U_EXPORT2
+uset_toPattern(const USet* set,
+               UChar* result, int32_t resultCapacity,
+               UBool escapeUnprintable,
+               UErrorCode* ec);
+
+/**
+ * Adds the given character to the given USet.  After this call,
+ * uset_contains(set, c) will return TRUE.
+ * A frozen set will not be modified.
+ * @param set the object to which to add the character
+ * @param c the character to add
+ * @stable ICU 2.4
+ */
+U_STABLE void U_EXPORT2
+uset_add(USet* set, UChar32 c);
+
+/**
+ * Adds all of the elements in the specified set to this set if
+ * they're not already present.  This operation effectively
+ * modifies this set so that its value is the <i>union</i> of the two
+ * sets.  The behavior of this operation is unspecified if the specified
+ * collection is modified while the operation is in progress.
+ * A frozen set will not be modified.
+ *
+ * @param set the object to which to add the set
+ * @param additionalSet the source set whose elements are to be added to this set.
+ * @stable ICU 2.6
+ */
+U_STABLE void U_EXPORT2
+uset_addAll(USet* set, const USet *additionalSet);
+
+/**
+ * Adds the given range of characters to the given USet.  After this call,
+ * uset_contains(set, start, end) will return TRUE.
+ * A frozen set will not be modified.
+ * @param set the object to which to add the character
+ * @param start the first character of the range to add, inclusive
+ * @param end the last character of the range to add, inclusive
+ * @stable ICU 2.2
+ */
+U_STABLE void U_EXPORT2
+uset_addRange(USet* set, UChar32 start, UChar32 end);
+
+/**
+ * Adds the given string to the given USet.  After this call,
+ * uset_containsString(set, str, strLen) will return TRUE.
+ * A frozen set will not be modified.
+ * @param set the object to which to add the character
+ * @param str the string to add
+ * @param strLen the length of the string or -1 if null terminated.
+ * @stable ICU 2.4
+ */
+U_STABLE void U_EXPORT2
+uset_addString(USet* set, const UChar* str, int32_t strLen);
+
+/**
+ * Adds each of the characters in this string to the set. Thus "ch" => {"c", "h"}
+ * If this set already any particular character, it has no effect on that character.
+ * A frozen set will not be modified.
+ * @param set the object to which to add the character
+ * @param str the source string
+ * @param strLen the length of the string or -1 if null terminated.
+ * @stable ICU 3.4
+ */
+U_STABLE void U_EXPORT2
+uset_addAllCodePoints(USet* set, const UChar *str, int32_t strLen);
+
+/**
+ * Removes the given character from the given USet.  After this call,
+ * uset_contains(set, c) will return FALSE.
+ * A frozen set will not be modified.
+ * @param set the object from which to remove the character
+ * @param c the character to remove
+ * @stable ICU 2.4
+ */
+U_STABLE void U_EXPORT2
+uset_remove(USet* set, UChar32 c);
+
+/**
+ * Removes the given range of characters from the given USet.  After this call,
+ * uset_contains(set, start, end) will return FALSE.
+ * A frozen set will not be modified.
+ * @param set the object to which to add the character
+ * @param start the first character of the range to remove, inclusive
+ * @param end the last character of the range to remove, inclusive
+ * @stable ICU 2.2
+ */
+U_STABLE void U_EXPORT2
+uset_removeRange(USet* set, UChar32 start, UChar32 end);
+
+/**
+ * Removes the given string to the given USet.  After this call,
+ * uset_containsString(set, str, strLen) will return FALSE.
+ * A frozen set will not be modified.
+ * @param set the object to which to add the character
+ * @param str the string to remove
+ * @param strLen the length of the string or -1 if null terminated.
+ * @stable ICU 2.4
+ */
+U_STABLE void U_EXPORT2
+uset_removeString(USet* set, const UChar* str, int32_t strLen);
+
+/**
+ * Removes from this set all of its elements that are contained in the
+ * specified set.  This operation effectively modifies this
+ * set so that its value is the <i>asymmetric set difference</i> of
+ * the two sets.
+ * A frozen set will not be modified.
+ * @param set the object from which the elements are to be removed
+ * @param removeSet the object that defines which elements will be
+ * removed from this set
+ * @stable ICU 3.2
+ */
+U_STABLE void U_EXPORT2
+uset_removeAll(USet* set, const USet* removeSet);
+
+/**
+ * Retain only the elements in this set that are contained in the
+ * specified range.  If <code>start > end</code> then an empty range is
+ * retained, leaving the set empty.  This is equivalent to
+ * a boolean logic AND, or a set INTERSECTION.
+ * A frozen set will not be modified.
+ *
+ * @param set the object for which to retain only the specified range
+ * @param start first character, inclusive, of range to be retained
+ * to this set.
+ * @param end last character, inclusive, of range to be retained
+ * to this set.
+ * @stable ICU 3.2
+ */
+U_STABLE void U_EXPORT2
+uset_retain(USet* set, UChar32 start, UChar32 end);
+
+/**
+ * Retains only the elements in this set that are contained in the
+ * specified set.  In other words, removes from this set all of
+ * its elements that are not contained in the specified set.  This
+ * operation effectively modifies this set so that its value is
+ * the <i>intersection</i> of the two sets.
+ * A frozen set will not be modified.
+ *
+ * @param set the object on which to perform the retain
+ * @param retain set that defines which elements this set will retain
+ * @stable ICU 3.2
+ */
+U_STABLE void U_EXPORT2
+uset_retainAll(USet* set, const USet* retain);
+
+/**
+ * Reallocate this objects internal structures to take up the least
+ * possible space, without changing this object's value.
+ * A frozen set will not be modified.
+ *
+ * @param set the object on which to perfrom the compact
+ * @stable ICU 3.2
+ */
+U_STABLE void U_EXPORT2
+uset_compact(USet* set);
+
+/**
+ * Inverts this set.  This operation modifies this set so that
+ * its value is its complement.  This operation does not affect
+ * the multicharacter strings, if any.
+ * A frozen set will not be modified.
+ * @param set the set
+ * @stable ICU 2.4
+ */
+U_STABLE void U_EXPORT2
+uset_complement(USet* set);
+
+/**
+ * Complements in this set all elements contained in the specified
+ * set.  Any character in the other set will be removed if it is
+ * in this set, or will be added if it is not in this set.
+ * A frozen set will not be modified.
+ *
+ * @param set the set with which to complement
+ * @param complement set that defines which elements will be xor'ed
+ * from this set.
+ * @stable ICU 3.2
+ */
+U_STABLE void U_EXPORT2
+uset_complementAll(USet* set, const USet* complement);
+
+/**
+ * Removes all of the elements from this set.  This set will be
+ * empty after this call returns.
+ * A frozen set will not be modified.
+ * @param set the set
+ * @stable ICU 2.4
+ */
+U_STABLE void U_EXPORT2
+uset_clear(USet* set);
+
+/**
+ * Close this set over the given attribute.  For the attribute
+ * USET_CASE, the result is to modify this set so that:
+ *
+ * 1. For each character or string 'a' in this set, all strings or
+ * characters 'b' such that foldCase(a) == foldCase(b) are added
+ * to this set.
+ *
+ * 2. For each string 'e' in the resulting set, if e !=
+ * foldCase(e), 'e' will be removed.
+ *
+ * Example: [aq\\u00DF{Bc}{bC}{Fi}] => [aAqQ\\u00DF\\uFB01{ss}{bc}{fi}]
+ *
+ * (Here foldCase(x) refers to the operation u_strFoldCase, and a
+ * == b denotes that the contents are the same, not pointer
+ * comparison.)
+ *
+ * A frozen set will not be modified.
+ *
+ * @param set the set
+ *
+ * @param attributes bitmask for attributes to close over.
+ * Currently only the USET_CASE bit is supported.  Any undefined bits
+ * are ignored.
+ * @stable ICU 4.2
+ */
+U_STABLE void U_EXPORT2
+uset_closeOver(USet* set, int32_t attributes);
+
+/**
+ * Remove all strings from this set.
+ *
+ * @param set the set
+ * @stable ICU 4.2
+ */
+U_STABLE void U_EXPORT2
+uset_removeAllStrings(USet* set);
+
+/**
+ * Returns TRUE if the given USet contains no characters and no
+ * strings.
+ * @param set the set
+ * @return true if set is empty
+ * @stable ICU 2.4
+ */
+U_STABLE UBool U_EXPORT2
+uset_isEmpty(const USet* set);
+
+/**
+ * Returns TRUE if the given USet contains the given character.
+ * This function works faster with a frozen set.
+ * @param set the set
+ * @param c The codepoint to check for within the set
+ * @return true if set contains c
+ * @stable ICU 2.4
+ */
+U_STABLE UBool U_EXPORT2
+uset_contains(const USet* set, UChar32 c);
+
+/**
+ * Returns TRUE if the given USet contains all characters c
+ * where start <= c && c <= end.
+ * @param set the set
+ * @param start the first character of the range to test, inclusive
+ * @param end the last character of the range to test, inclusive
+ * @return TRUE if set contains the range
+ * @stable ICU 2.2
+ */
+U_STABLE UBool U_EXPORT2
+uset_containsRange(const USet* set, UChar32 start, UChar32 end);
+
+/**
+ * Returns TRUE if the given USet contains the given string.
+ * @param set the set
+ * @param str the string
+ * @param strLen the length of the string or -1 if null terminated.
+ * @return true if set contains str
+ * @stable ICU 2.4
+ */
+U_STABLE UBool U_EXPORT2
+uset_containsString(const USet* set, const UChar* str, int32_t strLen);
+
+/**
+ * Returns the index of the given character within this set, where
+ * the set is ordered by ascending code point.  If the character
+ * is not in this set, return -1.  The inverse of this method is
+ * <code>charAt()</code>.
+ * @param set the set
+ * @param c the character to obtain the index for
+ * @return an index from 0..size()-1, or -1
+ * @stable ICU 3.2
+ */
+U_STABLE int32_t U_EXPORT2
+uset_indexOf(const USet* set, UChar32 c);
+
+/**
+ * Returns the character at the given index within this set, where
+ * the set is ordered by ascending code point.  If the index is
+ * out of range, return (UChar32)-1.  The inverse of this method is
+ * <code>indexOf()</code>.
+ * @param set the set
+ * @param charIndex an index from 0..size()-1 to obtain the char for
+ * @return the character at the given index, or (UChar32)-1.
+ * @stable ICU 3.2
+ */
+U_STABLE UChar32 U_EXPORT2
+uset_charAt(const USet* set, int32_t charIndex);
+
+/**
+ * Returns the number of characters and strings contained in the given
+ * USet.
+ * @param set the set
+ * @return a non-negative integer counting the characters and strings
+ * contained in set
+ * @stable ICU 2.4
+ */
+U_STABLE int32_t U_EXPORT2
+uset_size(const USet* set);
+
+/**
+ * Returns the number of items in this set.  An item is either a range
+ * of characters or a single multicharacter string.
+ * @param set the set
+ * @return a non-negative integer counting the character ranges
+ * and/or strings contained in set
+ * @stable ICU 2.4
+ */
+U_STABLE int32_t U_EXPORT2
+uset_getItemCount(const USet* set);
+
+/**
+ * Returns an item of this set.  An item is either a range of
+ * characters or a single multicharacter string.
+ * @param set the set
+ * @param itemIndex a non-negative integer in the range 0..
+ * uset_getItemCount(set)-1
+ * @param start pointer to variable to receive first character
+ * in range, inclusive
+ * @param end pointer to variable to receive last character in range,
+ * inclusive
+ * @param str buffer to receive the string, may be NULL
+ * @param strCapacity capacity of str, or 0 if str is NULL
+ * @param ec error code
+ * @return the length of the string (>= 2), or 0 if the item is a
+ * range, in which case it is the range *start..*end, or -1 if
+ * itemIndex is out of range
+ * @stable ICU 2.4
+ */
+U_STABLE int32_t U_EXPORT2
+uset_getItem(const USet* set, int32_t itemIndex,
+             UChar32* start, UChar32* end,
+             UChar* str, int32_t strCapacity,
+             UErrorCode* ec);
+
+/**
+ * Returns true if set1 contains all the characters and strings
+ * of set2. It answers the question, 'Is set1 a superset of set2?'
+ * @param set1 set to be checked for containment
+ * @param set2 set to be checked for containment
+ * @return true if the test condition is met
+ * @stable ICU 3.2
+ */
+U_STABLE UBool U_EXPORT2
+uset_containsAll(const USet* set1, const USet* set2);
+
+/**
+ * Returns true if this set contains all the characters
+ * of the given string. This is does not check containment of grapheme
+ * clusters, like uset_containsString.
+ * @param set set of characters to be checked for containment
+ * @param str string containing codepoints to be checked for containment
+ * @param strLen the length of the string or -1 if null terminated.
+ * @return true if the test condition is met
+ * @stable ICU 3.4
+ */
+U_STABLE UBool U_EXPORT2
+uset_containsAllCodePoints(const USet* set, const UChar *str, int32_t strLen);
+
+/**
+ * Returns true if set1 contains none of the characters and strings
+ * of set2. It answers the question, 'Is set1 a disjoint set of set2?'
+ * @param set1 set to be checked for containment
+ * @param set2 set to be checked for containment
+ * @return true if the test condition is met
+ * @stable ICU 3.2
+ */
+U_STABLE UBool U_EXPORT2
+uset_containsNone(const USet* set1, const USet* set2);
+
+/**
+ * Returns true if set1 contains some of the characters and strings
+ * of set2. It answers the question, 'Does set1 and set2 have an intersection?'
+ * @param set1 set to be checked for containment
+ * @param set2 set to be checked for containment
+ * @return true if the test condition is met
+ * @stable ICU 3.2
+ */
+U_STABLE UBool U_EXPORT2
+uset_containsSome(const USet* set1, const USet* set2);
+
+/**
+ * Returns the length of the initial substring of the input string which
+ * consists only of characters and strings that are contained in this set
+ * (USET_SPAN_CONTAINED, USET_SPAN_SIMPLE),
+ * or only of characters and strings that are not contained
+ * in this set (USET_SPAN_NOT_CONTAINED).
+ * See USetSpanCondition for details.
+ * Similar to the strspn() C library function.
+ * Unpaired surrogates are treated according to contains() of their surrogate code points.
+ * This function works faster with a frozen set and with a non-negative string length argument.
+ * @param set the set
+ * @param s start of the string
+ * @param length of the string; can be -1 for NUL-terminated
+ * @param spanCondition specifies the containment condition
+ * @return the length of the initial substring according to the spanCondition;
+ *         0 if the start of the string does not fit the spanCondition
+ * @stable ICU 3.8
+ * @see USetSpanCondition
+ */
+U_STABLE int32_t U_EXPORT2
+uset_span(const USet *set, const UChar *s, int32_t length, USetSpanCondition spanCondition);
+
+/**
+ * Returns the start of the trailing substring of the input string which
+ * consists only of characters and strings that are contained in this set
+ * (USET_SPAN_CONTAINED, USET_SPAN_SIMPLE),
+ * or only of characters and strings that are not contained
+ * in this set (USET_SPAN_NOT_CONTAINED).
+ * See USetSpanCondition for details.
+ * Unpaired surrogates are treated according to contains() of their surrogate code points.
+ * This function works faster with a frozen set and with a non-negative string length argument.
+ * @param set the set
+ * @param s start of the string
+ * @param length of the string; can be -1 for NUL-terminated
+ * @param spanCondition specifies the containment condition
+ * @return the start of the trailing substring according to the spanCondition;
+ *         the string length if the end of the string does not fit the spanCondition
+ * @stable ICU 3.8
+ * @see USetSpanCondition
+ */
+U_STABLE int32_t U_EXPORT2
+uset_spanBack(const USet *set, const UChar *s, int32_t length, USetSpanCondition spanCondition);
+
+/**
+ * Returns the length of the initial substring of the input string which
+ * consists only of characters and strings that are contained in this set
+ * (USET_SPAN_CONTAINED, USET_SPAN_SIMPLE),
+ * or only of characters and strings that are not contained
+ * in this set (USET_SPAN_NOT_CONTAINED).
+ * See USetSpanCondition for details.
+ * Similar to the strspn() C library function.
+ * Malformed byte sequences are treated according to contains(0xfffd).
+ * This function works faster with a frozen set and with a non-negative string length argument.
+ * @param set the set
+ * @param s start of the string (UTF-8)
+ * @param length of the string; can be -1 for NUL-terminated
+ * @param spanCondition specifies the containment condition
+ * @return the length of the initial substring according to the spanCondition;
+ *         0 if the start of the string does not fit the spanCondition
+ * @stable ICU 3.8
+ * @see USetSpanCondition
+ */
+U_STABLE int32_t U_EXPORT2
+uset_spanUTF8(const USet *set, const char *s, int32_t length, USetSpanCondition spanCondition);
+
+/**
+ * Returns the start of the trailing substring of the input string which
+ * consists only of characters and strings that are contained in this set
+ * (USET_SPAN_CONTAINED, USET_SPAN_SIMPLE),
+ * or only of characters and strings that are not contained
+ * in this set (USET_SPAN_NOT_CONTAINED).
+ * See USetSpanCondition for details.
+ * Malformed byte sequences are treated according to contains(0xfffd).
+ * This function works faster with a frozen set and with a non-negative string length argument.
+ * @param set the set
+ * @param s start of the string (UTF-8)
+ * @param length of the string; can be -1 for NUL-terminated
+ * @param spanCondition specifies the containment condition
+ * @return the start of the trailing substring according to the spanCondition;
+ *         the string length if the end of the string does not fit the spanCondition
+ * @stable ICU 3.8
+ * @see USetSpanCondition
+ */
+U_STABLE int32_t U_EXPORT2
+uset_spanBackUTF8(const USet *set, const char *s, int32_t length, USetSpanCondition spanCondition);
+
+/**
+ * Returns true if set1 contains all of the characters and strings
+ * of set2, and vis versa. It answers the question, 'Is set1 equal to set2?'
+ * @param set1 set to be checked for containment
+ * @param set2 set to be checked for containment
+ * @return true if the test condition is met
+ * @stable ICU 3.2
+ */
+U_STABLE UBool U_EXPORT2
+uset_equals(const USet* set1, const USet* set2);
+
+/*********************************************************************
+ * Serialized set API
+ *********************************************************************/
+
+/**
+ * Serializes this set into an array of 16-bit integers.  Serialization
+ * (currently) only records the characters in the set; multicharacter
+ * strings are ignored.
+ *
+ * The array
+ * has following format (each line is one 16-bit integer):
+ *
+ *  length     = (n+2*m) | (m!=0?0x8000:0)
+ *  bmpLength  = n; present if m!=0
+ *  bmp[0]
+ *  bmp[1]
+ *  ...
+ *  bmp[n-1]
+ *  supp-high[0]
+ *  supp-low[0]
+ *  supp-high[1]
+ *  supp-low[1]
+ *  ...
+ *  supp-high[m-1]
+ *  supp-low[m-1]
+ *
+ * The array starts with a header.  After the header are n bmp
+ * code points, then m supplementary code points.  Either n or m
+ * or both may be zero.  n+2*m is always <= 0x7FFF.
+ *
+ * If there are no supplementary characters (if m==0) then the
+ * header is one 16-bit integer, 'length', with value n.
+ *
+ * If there are supplementary characters (if m!=0) then the header
+ * is two 16-bit integers.  The first, 'length', has value
+ * (n+2*m)|0x8000.  The second, 'bmpLength', has value n.
+ *
+ * After the header the code points are stored in ascending order.
+ * Supplementary code points are stored as most significant 16
+ * bits followed by least significant 16 bits.
+ *
+ * @param set the set
+ * @param dest pointer to buffer of destCapacity 16-bit integers.
+ * May be NULL only if destCapacity is zero.
+ * @param destCapacity size of dest, or zero.  Must not be negative.
+ * @param pErrorCode pointer to the error code.  Will be set to
+ * U_INDEX_OUTOFBOUNDS_ERROR if n+2*m > 0x7FFF.  Will be set to
+ * U_BUFFER_OVERFLOW_ERROR if n+2*m+(m!=0?2:1) > destCapacity.
+ * @return the total length of the serialized format, including
+ * the header, that is, n+2*m+(m!=0?2:1), or 0 on error other
+ * than U_BUFFER_OVERFLOW_ERROR.
+ * @stable ICU 2.4
+ */
+U_STABLE int32_t U_EXPORT2
+uset_serialize(const USet* set, uint16_t* dest, int32_t destCapacity, UErrorCode* pErrorCode);
+
+/**
+ * Given a serialized array, fill in the given serialized set object.
+ * @param fillSet pointer to result
+ * @param src pointer to start of array
+ * @param srcLength length of array
+ * @return true if the given array is valid, otherwise false
+ * @stable ICU 2.4
+ */
+U_STABLE UBool U_EXPORT2
+uset_getSerializedSet(USerializedSet* fillSet, const uint16_t* src, int32_t srcLength);
+
+/**
+ * Set the USerializedSet to contain the given character (and nothing
+ * else).
+ * @param fillSet pointer to result
+ * @param c The codepoint to set
+ * @stable ICU 2.4
+ */
+U_STABLE void U_EXPORT2
+uset_setSerializedToOne(USerializedSet* fillSet, UChar32 c);
+
+/**
+ * Returns TRUE if the given USerializedSet contains the given
+ * character.
+ * @param set the serialized set
+ * @param c The codepoint to check for within the set
+ * @return true if set contains c
+ * @stable ICU 2.4
+ */
+U_STABLE UBool U_EXPORT2
+uset_serializedContains(const USerializedSet* set, UChar32 c);
+
+/**
+ * Returns the number of disjoint ranges of characters contained in
+ * the given serialized set.  Ignores any strings contained in the
+ * set.
+ * @param set the serialized set
+ * @return a non-negative integer counting the character ranges
+ * contained in set
+ * @stable ICU 2.4
+ */
+U_STABLE int32_t U_EXPORT2
+uset_getSerializedRangeCount(const USerializedSet* set);
+
+/**
+ * Returns a range of characters contained in the given serialized
+ * set.
+ * @param set the serialized set
+ * @param rangeIndex a non-negative integer in the range 0..
+ * uset_getSerializedRangeCount(set)-1
+ * @param pStart pointer to variable to receive first character
+ * in range, inclusive
+ * @param pEnd pointer to variable to receive last character in range,
+ * inclusive
+ * @return true if rangeIndex is valid, otherwise false
+ * @stable ICU 2.4
+ */
+U_STABLE UBool U_EXPORT2
+uset_getSerializedRange(const USerializedSet* set, int32_t rangeIndex,
+                        UChar32* pStart, UChar32* pEnd);
+
+#endif
diff --git a/vendor/icu/include/unicode/ushape.h b/vendor/icu/include/unicode/ushape.h
new file mode 100644
index 0000000000..80e356ca79
--- /dev/null
+++ b/vendor/icu/include/unicode/ushape.h
@@ -0,0 +1,476 @@
+// © 2016 and later: Unicode, Inc. and others.
+// License & terms of use: http://www.unicode.org/copyright.html
+/*
+******************************************************************************
+*
+*   Copyright (C) 2000-2012, International Business Machines
+*   Corporation and others.  All Rights Reserved.
+*
+******************************************************************************
+*   file name:  ushape.h
+*   encoding:   UTF-8
+*   tab size:   8 (not used)
+*   indentation:4
+*
+*   created on: 2000jun29
+*   created by: Markus W. Scherer
+*/
+
+#ifndef __USHAPE_H__
+#define __USHAPE_H__
+
+#include <unicode/utypes.h>
+
+/**
+ * \file
+ * \brief C API:  Arabic shaping
+ * 
+ */
+
+/**
+ * Shape Arabic text on a character basis.
+ *
+ * <p>This function performs basic operations for "shaping" Arabic text. It is most
+ * useful for use with legacy data formats and legacy display technology
+ * (simple terminals). All operations are performed on Unicode characters.</p>
+ *
+ * <p>Text-based shaping means that some character code points in the text are
+ * replaced by others depending on the context. It transforms one kind of text
+ * into another. In comparison, modern displays for Arabic text select
+ * appropriate, context-dependent font glyphs for each text element, which means
+ * that they transform text into a glyph vector.</p>
+ *
+ * <p>Text transformations are necessary when modern display technology is not
+ * available or when text needs to be transformed to or from legacy formats that
+ * use "shaped" characters. Since the Arabic script is cursive, connecting
+ * adjacent letters to each other, computers select images for each letter based
+ * on the surrounding letters. This usually results in four images per Arabic
+ * letter: initial, middle, final, and isolated forms. In Unicode, on the other
+ * hand, letters are normally stored abstract, and a display system is expected
+ * to select the necessary glyphs. (This makes searching and other text
+ * processing easier because the same letter has only one code.) It is possible
+ * to mimic this with text transformations because there are characters in
+ * Unicode that are rendered as letters with a specific shape
+ * (or cursive connectivity). They were included for interoperability with
+ * legacy systems and codepages, and for unsophisticated display systems.</p>
+ *
+ * <p>A second kind of text transformations is supported for Arabic digits:
+ * For compatibility with legacy codepages that only include European digits,
+ * it is possible to replace one set of digits by another, changing the
+ * character code points. These operations can be performed for either
+ * Arabic-Indic Digits (U+0660...U+0669) or Eastern (Extended) Arabic-Indic
+ * digits (U+06f0...U+06f9).</p>
+ *
+ * <p>Some replacements may result in more or fewer characters (code points).
+ * By default, this means that the destination buffer may receive text with a
+ * length different from the source length. Some legacy systems rely on the
+ * length of the text to be constant. They expect extra spaces to be added
+ * or consumed either next to the affected character or at the end of the
+ * text.</p>
+ *
+ * <p>For details about the available operations, see the description of the
+ * <code>U_SHAPE_...</code> options.</p>
+ *
+ * @param source The input text.
+ *
+ * @param sourceLength The number of UChars in <code>source</code>.
+ *
+ * @param dest The destination buffer that will receive the results of the
+ *             requested operations. It may be <code>NULL</code> only if
+ *             <code>destSize</code> is 0. The source and destination must not
+ *             overlap.
+ *
+ * @param destSize The size (capacity) of the destination buffer in UChars.
+ *                 If <code>destSize</code> is 0, then no output is produced,
+ *                 but the necessary buffer size is returned ("preflighting").
+ *
+ * @param options This is a 32-bit set of flags that specify the operations
+ *                that are performed on the input text. If no error occurs,
+ *                then the result will always be written to the destination
+ *                buffer.
+ *
+ * @param pErrorCode must be a valid pointer to an error code value,
+ *        which must not indicate a failure before the function call.
+ *
+ * @return The number of UChars written to the destination buffer.
+ *         If an error occurred, then no output was written, or it may be
+ *         incomplete. If <code>U_BUFFER_OVERFLOW_ERROR</code> is set, then
+ *         the return value indicates the necessary destination buffer size.
+ * @stable ICU 2.0
+ */
+U_STABLE int32_t U_EXPORT2
+u_shapeArabic(const UChar *source, int32_t sourceLength,
+              UChar *dest, int32_t destSize,
+              uint32_t options,
+              UErrorCode *pErrorCode);
+
+/**
+ * Memory option: allow the result to have a different length than the source.
+ * Affects: LamAlef options
+ * @stable ICU 2.0
+ */
+#define U_SHAPE_LENGTH_GROW_SHRINK              0
+
+/**
+ * Memory option: allow the result to have a different length than the source.
+ * Affects: LamAlef options
+ * This option is an alias to U_SHAPE_LENGTH_GROW_SHRINK
+ * @stable ICU 4.2
+ */
+#define U_SHAPE_LAMALEF_RESIZE                  0 
+
+/**
+ * Memory option: the result must have the same length as the source.
+ * If more room is necessary, then try to consume spaces next to modified characters.
+ * @stable ICU 2.0
+ */
+#define U_SHAPE_LENGTH_FIXED_SPACES_NEAR        1
+
+/**
+ * Memory option: the result must have the same length as the source.
+ * If more room is necessary, then try to consume spaces next to modified characters.
+ * Affects: LamAlef options
+ * This option is an alias to U_SHAPE_LENGTH_FIXED_SPACES_NEAR
+ * @stable ICU 4.2
+ */
+#define U_SHAPE_LAMALEF_NEAR                    1 
+
+/**
+ * Memory option: the result must have the same length as the source.
+ * If more room is necessary, then try to consume spaces at the end of the text.
+ * @stable ICU 2.0
+ */
+#define U_SHAPE_LENGTH_FIXED_SPACES_AT_END      2
+
+/**
+ * Memory option: the result must have the same length as the source.
+ * If more room is necessary, then try to consume spaces at the end of the text.
+ * Affects: LamAlef options
+ * This option is an alias to U_SHAPE_LENGTH_FIXED_SPACES_AT_END
+ * @stable ICU 4.2
+ */
+#define U_SHAPE_LAMALEF_END                     2 
+
+/**
+ * Memory option: the result must have the same length as the source.
+ * If more room is necessary, then try to consume spaces at the beginning of the text.
+ * @stable ICU 2.0
+ */
+#define U_SHAPE_LENGTH_FIXED_SPACES_AT_BEGINNING 3
+
+/**
+ * Memory option: the result must have the same length as the source.
+ * If more room is necessary, then try to consume spaces at the beginning of the text.
+ * Affects: LamAlef options
+ * This option is an alias to U_SHAPE_LENGTH_FIXED_SPACES_AT_BEGINNING
+ * @stable ICU 4.2
+ */
+#define U_SHAPE_LAMALEF_BEGIN                    3 
+
+
+/**
+ * Memory option: the result must have the same length as the source.
+ * Shaping Mode: For each LAMALEF character found, expand LAMALEF using space at end.
+ *               If there is no space at end, use spaces at beginning of the buffer. If there
+ *               is no space at beginning of the buffer, use spaces at the near (i.e. the space
+ *               after the LAMALEF character).
+ *               If there are no spaces found, an error U_NO_SPACE_AVAILABLE (as defined in utypes.h) 
+ *               will be set in pErrorCode
+ *
+ * Deshaping Mode: Perform the same function as the flag equals U_SHAPE_LAMALEF_END. 
+ * Affects: LamAlef options
+ * @stable ICU 4.2
+ */
+#define U_SHAPE_LAMALEF_AUTO                     0x10000 
+
+/** Bit mask for memory options. @stable ICU 2.0 */
+#define U_SHAPE_LENGTH_MASK                      0x10003 /* Changed old value 3 */
+
+
+/**
+ * Bit mask for LamAlef memory options.
+ * @stable ICU 4.2
+ */
+#define U_SHAPE_LAMALEF_MASK                     0x10003 /* updated */
+
+/** Direction indicator: the source is in logical (keyboard) order. @stable ICU 2.0 */
+#define U_SHAPE_TEXT_DIRECTION_LOGICAL          0
+
+/**
+ * Direction indicator:
+ * the source is in visual RTL order,
+ * the rightmost displayed character stored first.
+ * This option is an alias to U_SHAPE_TEXT_DIRECTION_LOGICAL
+ * @stable ICU 4.2
+ */
+#define U_SHAPE_TEXT_DIRECTION_VISUAL_RTL       0
+
+/**
+ * Direction indicator:
+ * the source is in visual LTR order,
+ * the leftmost displayed character stored first.
+ * @stable ICU 2.0
+ */
+#define U_SHAPE_TEXT_DIRECTION_VISUAL_LTR       4
+
+/** Bit mask for direction indicators. @stable ICU 2.0 */
+#define U_SHAPE_TEXT_DIRECTION_MASK             4
+
+
+/** Letter shaping option: do not perform letter shaping. @stable ICU 2.0 */
+#define U_SHAPE_LETTERS_NOOP                    0
+
+/** Letter shaping option: replace abstract letter characters by "shaped" ones. @stable ICU 2.0 */
+#define U_SHAPE_LETTERS_SHAPE                   8
+
+/** Letter shaping option: replace "shaped" letter characters by abstract ones. @stable ICU 2.0 */
+#define U_SHAPE_LETTERS_UNSHAPE                 0x10
+
+/**
+ * Letter shaping option: replace abstract letter characters by "shaped" ones.
+ * The only difference with U_SHAPE_LETTERS_SHAPE is that Tashkeel letters
+ * are always "shaped" into the isolated form instead of the medial form
+ * (selecting code points from the Arabic Presentation Forms-B block).
+ * @stable ICU 2.0
+ */
+#define U_SHAPE_LETTERS_SHAPE_TASHKEEL_ISOLATED 0x18
+
+
+/** Bit mask for letter shaping options. @stable ICU 2.0 */
+#define U_SHAPE_LETTERS_MASK                        0x18
+
+
+/** Digit shaping option: do not perform digit shaping. @stable ICU 2.0 */
+#define U_SHAPE_DIGITS_NOOP                     0
+
+/**
+ * Digit shaping option:
+ * Replace European digits (U+0030...) by Arabic-Indic digits.
+ * @stable ICU 2.0
+ */
+#define U_SHAPE_DIGITS_EN2AN                    0x20
+
+/**
+ * Digit shaping option:
+ * Replace Arabic-Indic digits by European digits (U+0030...).
+ * @stable ICU 2.0
+ */
+#define U_SHAPE_DIGITS_AN2EN                    0x40
+
+/**
+ * Digit shaping option:
+ * Replace European digits (U+0030...) by Arabic-Indic digits if the most recent
+ * strongly directional character is an Arabic letter
+ * (<code>u_charDirection()</code> result <code>U_RIGHT_TO_LEFT_ARABIC</code> [AL]).<br>
+ * The direction of "preceding" depends on the direction indicator option.
+ * For the first characters, the preceding strongly directional character
+ * (initial state) is assumed to be not an Arabic letter
+ * (it is <code>U_LEFT_TO_RIGHT</code> [L] or <code>U_RIGHT_TO_LEFT</code> [R]).
+ * @stable ICU 2.0
+ */
+#define U_SHAPE_DIGITS_ALEN2AN_INIT_LR          0x60
+
+/**
+ * Digit shaping option:
+ * Replace European digits (U+0030...) by Arabic-Indic digits if the most recent
+ * strongly directional character is an Arabic letter
+ * (<code>u_charDirection()</code> result <code>U_RIGHT_TO_LEFT_ARABIC</code> [AL]).<br>
+ * The direction of "preceding" depends on the direction indicator option.
+ * For the first characters, the preceding strongly directional character
+ * (initial state) is assumed to be an Arabic letter.
+ * @stable ICU 2.0
+ */
+#define U_SHAPE_DIGITS_ALEN2AN_INIT_AL          0x80
+
+/** Not a valid option value. May be replaced by a new option. @stable ICU 2.0 */
+#define U_SHAPE_DIGITS_RESERVED                 0xa0
+
+/** Bit mask for digit shaping options. @stable ICU 2.0 */
+#define U_SHAPE_DIGITS_MASK                     0xe0
+
+
+/** Digit type option: Use Arabic-Indic digits (U+0660...U+0669). @stable ICU 2.0 */
+#define U_SHAPE_DIGIT_TYPE_AN                   0
+
+/** Digit type option: Use Eastern (Extended) Arabic-Indic digits (U+06f0...U+06f9). @stable ICU 2.0 */
+#define U_SHAPE_DIGIT_TYPE_AN_EXTENDED          0x100
+
+/** Not a valid option value. May be replaced by a new option. @stable ICU 2.0 */
+#define U_SHAPE_DIGIT_TYPE_RESERVED             0x200
+
+/** Bit mask for digit type options. @stable ICU 2.0 */
+#define U_SHAPE_DIGIT_TYPE_MASK                 0x300 /* I need to change this from 0x3f00 to 0x300 */
+
+/** 
+ * Tashkeel aggregation option:
+ * Replaces any combination of U+0651 with one of
+ * U+064C, U+064D, U+064E, U+064F, U+0650 with
+ * U+FC5E, U+FC5F, U+FC60, U+FC61, U+FC62 consecutively.
+ * @stable ICU 3.6
+ */
+#define U_SHAPE_AGGREGATE_TASHKEEL              0x4000
+/** Tashkeel aggregation option: do not aggregate tashkeels. @stable ICU 3.6 */
+#define U_SHAPE_AGGREGATE_TASHKEEL_NOOP         0
+/** Bit mask for tashkeel aggregation. @stable ICU 3.6 */
+#define U_SHAPE_AGGREGATE_TASHKEEL_MASK         0x4000
+
+/** 
+ * Presentation form option:
+ * Don't replace Arabic Presentation Forms-A and Arabic Presentation Forms-B
+ * characters with 0+06xx characters, before shaping.
+ * @stable ICU 3.6
+ */
+#define U_SHAPE_PRESERVE_PRESENTATION           0x8000
+/** Presentation form option: 
+ * Replace Arabic Presentation Forms-A and Arabic Presentationo Forms-B with 
+ * their unshaped correspondants in range 0+06xx, before shaping.
+ * @stable ICU 3.6 
+ */
+#define U_SHAPE_PRESERVE_PRESENTATION_NOOP      0
+/** Bit mask for preserve presentation form. @stable ICU 3.6 */
+#define U_SHAPE_PRESERVE_PRESENTATION_MASK      0x8000
+
+/* Seen Tail option */ 
+/**
+ * Memory option: the result must have the same length as the source.
+ * Shaping mode: The SEEN family character will expand into two characters using space near 
+ *               the SEEN family character(i.e. the space after the character).
+ *               If there are no spaces found, an error U_NO_SPACE_AVAILABLE (as defined in utypes.h) 
+ *               will be set in pErrorCode
+ *
+ * De-shaping mode: Any Seen character followed by Tail character will be
+ *                  replaced by one cell Seen and a space will replace the Tail.
+ * Affects: Seen options
+ * @stable ICU 4.2
+ */
+#define U_SHAPE_SEEN_TWOCELL_NEAR     0x200000
+
+/**
+ * Bit mask for Seen memory options. 
+ * @stable ICU 4.2
+ */
+#define U_SHAPE_SEEN_MASK             0x700000
+
+/* YehHamza option */ 
+/**
+ * Memory option: the result must have the same length as the source.
+ * Shaping mode: The YEHHAMZA character will expand into two characters using space near it 
+ *              (i.e. the space after the character
+ *               If there are no spaces found, an error U_NO_SPACE_AVAILABLE (as defined in utypes.h) 
+ *               will be set in pErrorCode
+ *
+ * De-shaping mode: Any Yeh (final or isolated) character followed by Hamza character will be
+ *                  replaced by one cell YehHamza and space will replace the Hamza.
+ * Affects: YehHamza options
+ * @stable ICU 4.2
+ */
+#define U_SHAPE_YEHHAMZA_TWOCELL_NEAR      0x1000000
+
+
+/**
+ * Bit mask for YehHamza memory options. 
+ * @stable ICU 4.2
+ */
+#define U_SHAPE_YEHHAMZA_MASK              0x3800000
+
+/* New Tashkeel options */ 
+/**
+ * Memory option: the result must have the same length as the source.
+ * Shaping mode: Tashkeel characters will be replaced by spaces. 
+ *               Spaces will be placed at beginning of the buffer
+ *
+ * De-shaping mode: N/A
+ * Affects: Tashkeel options
+ * @stable ICU 4.2
+ */
+#define U_SHAPE_TASHKEEL_BEGIN                      0x40000
+
+/**
+ * Memory option: the result must have the same length as the source.
+ * Shaping mode: Tashkeel characters will be replaced by spaces. 
+ *               Spaces will be placed at end of the buffer
+ *
+ * De-shaping mode: N/A
+ * Affects: Tashkeel options
+ * @stable ICU 4.2
+ */
+#define U_SHAPE_TASHKEEL_END                        0x60000
+
+/**
+ * Memory option: allow the result to have a different length than the source.
+ * Shaping mode: Tashkeel characters will be removed, buffer length will shrink. 
+ * De-shaping mode: N/A 
+ *
+ * Affect: Tashkeel options
+ * @stable ICU 4.2
+ */
+#define U_SHAPE_TASHKEEL_RESIZE                     0x80000
+
+/**
+ * Memory option: the result must have the same length as the source.
+ * Shaping mode: Tashkeel characters will be replaced by Tatweel if it is connected to adjacent
+ *               characters (i.e. shaped on Tatweel) or replaced by space if it is not connected.
+ *
+ * De-shaping mode: N/A
+ * Affects: YehHamza options
+ * @stable ICU 4.2
+ */
+#define U_SHAPE_TASHKEEL_REPLACE_BY_TATWEEL         0xC0000
+
+/** 
+ * Bit mask for Tashkeel replacement with Space or Tatweel memory options. 
+ * @stable ICU 4.2
+ */
+#define U_SHAPE_TASHKEEL_MASK                       0xE0000
+
+
+/* Space location Control options */ 
+/**
+ * This option affect the meaning of BEGIN and END options. if this option is not used the default
+ * for BEGIN and END will be as following: 
+ * The Default (for both Visual LTR, Visual RTL and Logical Text)
+ *           1. BEGIN always refers to the start address of physical memory.
+ *           2. END always refers to the end address of physical memory.
+ *
+ * If this option is used it will swap the meaning of BEGIN and END only for Visual LTR text. 
+ *
+ * The effect on BEGIN and END Memory Options will be as following:
+ *    A. BEGIN For Visual LTR text: This will be the beginning (right side) of the visual text(
+ *       corresponding to the physical memory address end for Visual LTR text, Same as END in 
+ *       default behavior)
+ *    B. BEGIN For Logical text: Same as BEGIN in default behavior. 
+ *    C. END For Visual LTR text: This will be the end (left side) of the visual text (corresponding
+ *       to the physical memory address beginning for Visual LTR text, Same as BEGIN in default behavior.
+ *    D. END For Logical text: Same as END in default behavior). 
+ * Affects: All LamAlef BEGIN, END and AUTO options.
+ * @stable ICU 4.2
+ */
+#define U_SHAPE_SPACES_RELATIVE_TO_TEXT_BEGIN_END 0x4000000
+
+/**
+ * Bit mask for swapping BEGIN and END for Visual LTR text 
+ * @stable ICU 4.2
+ */
+#define U_SHAPE_SPACES_RELATIVE_TO_TEXT_MASK      0x4000000
+
+/**
+ * If this option is used, shaping will use the new Unicode code point for TAIL (i.e. 0xFE73). 
+ * If this option is not specified (Default), old unofficial Unicode TAIL code point is used (i.e. 0x200B)
+ * De-shaping will not use this option as it will always search for both the new Unicode code point for the 
+ * TAIL (i.e. 0xFE73) or the old unofficial Unicode TAIL code point (i.e. 0x200B) and de-shape the
+ * Seen-Family letter accordingly.
+ *
+ * Shaping Mode: Only shaping.
+ * De-shaping Mode: N/A.
+ * Affects: All Seen options
+ * @stable ICU 4.8
+ */
+#define U_SHAPE_TAIL_NEW_UNICODE        0x8000000
+
+/**
+ * Bit mask for new Unicode Tail option 
+ * @stable ICU 4.8
+ */
+#define U_SHAPE_TAIL_TYPE_MASK          0x8000000
+
+#endif
diff --git a/vendor/icu/include/unicode/ustring.h b/vendor/icu/include/unicode/ustring.h
new file mode 100644
index 0000000000..1e9aacdb3c
--- /dev/null
+++ b/vendor/icu/include/unicode/ustring.h
@@ -0,0 +1,1692 @@
+// © 2016 and later: Unicode, Inc. and others.
+// License & terms of use: http://www.unicode.org/copyright.html
+/*
+**********************************************************************
+*   Copyright (C) 1998-2014, International Business Machines
+*   Corporation and others.  All Rights Reserved.
+**********************************************************************
+*
+* File ustring.h
+*
+* Modification History:
+*
+*   Date        Name        Description
+*   12/07/98    bertrand    Creation.
+******************************************************************************
+*/
+
+#ifndef USTRING_H
+#define USTRING_H
+
+#include <unicode/utypes.h>
+#include <unicode/putil.h>
+#include <unicode/uiter.h>
+
+/**
+ * \def UBRK_TYPEDEF_UBREAK_ITERATOR
+ * @internal 
+ */
+
+#ifndef UBRK_TYPEDEF_UBREAK_ITERATOR
+#   define UBRK_TYPEDEF_UBREAK_ITERATOR
+/** Simple declaration for u_strToTitle() to avoid including unicode/ubrk.h. @stable ICU 2.1*/
+    typedef struct UBreakIterator UBreakIterator;
+#endif
+
+/**
+ * \file
+ * \brief C API: Unicode string handling functions
+ *
+ * These C API functions provide general Unicode string handling.
+ *
+ * Some functions are equivalent in name, signature, and behavior to the ANSI C <string.h>
+ * functions. (For example, they do not check for bad arguments like NULL string pointers.)
+ * In some cases, only the thread-safe variant of such a function is implemented here
+ * (see u_strtok_r()).
+ *
+ * Other functions provide more Unicode-specific functionality like locale-specific
+ * upper/lower-casing and string comparison in code point order.
+ *
+ * ICU uses 16-bit Unicode (UTF-16) in the form of arrays of UChar code units.
+ * UTF-16 encodes each Unicode code point with either one or two UChar code units.
+ * (This is the default form of Unicode, and a forward-compatible extension of the original,
+ * fixed-width form that was known as UCS-2. UTF-16 superseded UCS-2 with Unicode 2.0
+ * in 1996.)
+ *
+ * Some APIs accept a 32-bit UChar32 value for a single code point.
+ *
+ * ICU also handles 16-bit Unicode text with unpaired surrogates.
+ * Such text is not well-formed UTF-16.
+ * Code-point-related functions treat unpaired surrogates as surrogate code points,
+ * i.e., as separate units.
+ *
+ * Although UTF-16 is a variable-width encoding form (like some legacy multi-byte encodings),
+ * it is much more efficient even for random access because the code unit values
+ * for single-unit characters vs. lead units vs. trail units are completely disjoint.
+ * This means that it is easy to determine character (code point) boundaries from
+ * random offsets in the string.
+ *
+ * Unicode (UTF-16) string processing is optimized for the single-unit case.
+ * Although it is important to support supplementary characters
+ * (which use pairs of lead/trail code units called "surrogates"),
+ * their occurrence is rare. Almost all characters in modern use require only
+ * a single UChar code unit (i.e., their code point values are <=0xffff).
+ *
+ * For more details see the User Guide Strings chapter (http://icu-project.org/userguide/strings.html).
+ * For a discussion of the handling of unpaired surrogates see also
+ * Jitterbug 2145 and its icu mailing list proposal on 2002-sep-18.
+ */
+
+/**
+ * \defgroup ustring_ustrlen String Length
+ * \ingroup ustring_strlen
+ */
+/*@{*/
+/**
+ * Determine the length of an array of UChar.
+ *
+ * @param s The array of UChars, NULL (U+0000) terminated.
+ * @return The number of UChars in <code>chars</code>, minus the terminator.
+ * @stable ICU 2.0
+ */
+U_STABLE int32_t U_EXPORT2
+u_strlen(const UChar *s);
+/*@}*/
+
+/**
+ * Count Unicode code points in the length UChar code units of the string.
+ * A code point may occupy either one or two UChar code units.
+ * Counting code points involves reading all code units.
+ *
+ * This functions is basically the inverse of the U16_FWD_N() macro (see utf.h).
+ *
+ * @param s The input string.
+ * @param length The number of UChar code units to be checked, or -1 to count all
+ *               code points before the first NUL (U+0000).
+ * @return The number of code points in the specified code units.
+ * @stable ICU 2.0
+ */
+U_STABLE int32_t U_EXPORT2
+u_countChar32(const UChar *s, int32_t length);
+
+/**
+ * Check if the string contains more Unicode code points than a certain number.
+ * This is more efficient than counting all code points in the entire string
+ * and comparing that number with a threshold.
+ * This function may not need to scan the string at all if the length is known
+ * (not -1 for NUL-termination) and falls within a certain range, and
+ * never needs to count more than 'number+1' code points.
+ * Logically equivalent to (u_countChar32(s, length)>number).
+ * A Unicode code point may occupy either one or two UChar code units.
+ *
+ * @param s The input string.
+ * @param length The length of the string, or -1 if it is NUL-terminated.
+ * @param number The number of code points in the string is compared against
+ *               the 'number' parameter.
+ * @return Boolean value for whether the string contains more Unicode code points
+ *         than 'number'. Same as (u_countChar32(s, length)>number).
+ * @stable ICU 2.4
+ */
+U_STABLE UBool U_EXPORT2
+u_strHasMoreChar32Than(const UChar *s, int32_t length, int32_t number);
+
+/**
+ * Concatenate two ustrings.  Appends a copy of <code>src</code>,
+ * including the null terminator, to <code>dst</code>. The initial copied
+ * character from <code>src</code> overwrites the null terminator in <code>dst</code>.
+ *
+ * @param dst The destination string.
+ * @param src The source string.
+ * @return A pointer to <code>dst</code>.
+ * @stable ICU 2.0
+ */
+U_STABLE UChar* U_EXPORT2
+u_strcat(UChar     *dst, 
+    const UChar     *src);
+
+/**
+ * Concatenate two ustrings.  
+ * Appends at most <code>n</code> characters from <code>src</code> to <code>dst</code>.
+ * Adds a terminating NUL.
+ * If src is too long, then only <code>n-1</code> characters will be copied
+ * before the terminating NUL.
+ * If <code>n&lt;=0</code> then dst is not modified.
+ *
+ * @param dst The destination string.
+ * @param src The source string (can be NULL/invalid if n<=0).
+ * @param n The maximum number of characters to append; no-op if <=0.
+ * @return A pointer to <code>dst</code>.
+ * @stable ICU 2.0
+ */
+U_STABLE UChar* U_EXPORT2
+u_strncat(UChar     *dst, 
+     const UChar     *src, 
+     int32_t     n);
+
+/**
+ * Find the first occurrence of a substring in a string.
+ * The substring is found at code point boundaries.
+ * That means that if the substring begins with
+ * a trail surrogate or ends with a lead surrogate,
+ * then it is found only if these surrogates stand alone in the text.
+ * Otherwise, the substring edge units would be matched against
+ * halves of surrogate pairs.
+ *
+ * @param s The string to search (NUL-terminated).
+ * @param substring The substring to find (NUL-terminated).
+ * @return A pointer to the first occurrence of <code>substring</code> in <code>s</code>,
+ *         or <code>s</code> itself if the <code>substring</code> is empty,
+ *         or <code>NULL</code> if <code>substring</code> is not in <code>s</code>.
+ * @stable ICU 2.0
+ *
+ * @see u_strrstr
+ * @see u_strFindFirst
+ * @see u_strFindLast
+ */
+U_STABLE UChar * U_EXPORT2
+u_strstr(const UChar *s, const UChar *substring);
+
+/**
+ * Find the first occurrence of a substring in a string.
+ * The substring is found at code point boundaries.
+ * That means that if the substring begins with
+ * a trail surrogate or ends with a lead surrogate,
+ * then it is found only if these surrogates stand alone in the text.
+ * Otherwise, the substring edge units would be matched against
+ * halves of surrogate pairs.
+ *
+ * @param s The string to search.
+ * @param length The length of s (number of UChars), or -1 if it is NUL-terminated.
+ * @param substring The substring to find (NUL-terminated).
+ * @param subLength The length of substring (number of UChars), or -1 if it is NUL-terminated.
+ * @return A pointer to the first occurrence of <code>substring</code> in <code>s</code>,
+ *         or <code>s</code> itself if the <code>substring</code> is empty,
+ *         or <code>NULL</code> if <code>substring</code> is not in <code>s</code>.
+ * @stable ICU 2.4
+ *
+ * @see u_strstr
+ * @see u_strFindLast
+ */
+U_STABLE UChar * U_EXPORT2
+u_strFindFirst(const UChar *s, int32_t length, const UChar *substring, int32_t subLength);
+
+/**
+ * Find the first occurrence of a BMP code point in a string.
+ * A surrogate code point is found only if its match in the text is not
+ * part of a surrogate pair.
+ * A NUL character is found at the string terminator.
+ *
+ * @param s The string to search (NUL-terminated).
+ * @param c The BMP code point to find.
+ * @return A pointer to the first occurrence of <code>c</code> in <code>s</code>
+ *         or <code>NULL</code> if <code>c</code> is not in <code>s</code>.
+ * @stable ICU 2.0
+ *
+ * @see u_strchr32
+ * @see u_memchr
+ * @see u_strstr
+ * @see u_strFindFirst
+ */
+U_STABLE UChar * U_EXPORT2
+u_strchr(const UChar *s, UChar c);
+
+/**
+ * Find the first occurrence of a code point in a string.
+ * A surrogate code point is found only if its match in the text is not
+ * part of a surrogate pair.
+ * A NUL character is found at the string terminator.
+ *
+ * @param s The string to search (NUL-terminated).
+ * @param c The code point to find.
+ * @return A pointer to the first occurrence of <code>c</code> in <code>s</code>
+ *         or <code>NULL</code> if <code>c</code> is not in <code>s</code>.
+ * @stable ICU 2.0
+ *
+ * @see u_strchr
+ * @see u_memchr32
+ * @see u_strstr
+ * @see u_strFindFirst
+ */
+U_STABLE UChar * U_EXPORT2
+u_strchr32(const UChar *s, UChar32 c);
+
+/**
+ * Find the last occurrence of a substring in a string.
+ * The substring is found at code point boundaries.
+ * That means that if the substring begins with
+ * a trail surrogate or ends with a lead surrogate,
+ * then it is found only if these surrogates stand alone in the text.
+ * Otherwise, the substring edge units would be matched against
+ * halves of surrogate pairs.
+ *
+ * @param s The string to search (NUL-terminated).
+ * @param substring The substring to find (NUL-terminated).
+ * @return A pointer to the last occurrence of <code>substring</code> in <code>s</code>,
+ *         or <code>s</code> itself if the <code>substring</code> is empty,
+ *         or <code>NULL</code> if <code>substring</code> is not in <code>s</code>.
+ * @stable ICU 2.4
+ *
+ * @see u_strstr
+ * @see u_strFindFirst
+ * @see u_strFindLast
+ */
+U_STABLE UChar * U_EXPORT2
+u_strrstr(const UChar *s, const UChar *substring);
+
+/**
+ * Find the last occurrence of a substring in a string.
+ * The substring is found at code point boundaries.
+ * That means that if the substring begins with
+ * a trail surrogate or ends with a lead surrogate,
+ * then it is found only if these surrogates stand alone in the text.
+ * Otherwise, the substring edge units would be matched against
+ * halves of surrogate pairs.
+ *
+ * @param s The string to search.
+ * @param length The length of s (number of UChars), or -1 if it is NUL-terminated.
+ * @param substring The substring to find (NUL-terminated).
+ * @param subLength The length of substring (number of UChars), or -1 if it is NUL-terminated.
+ * @return A pointer to the last occurrence of <code>substring</code> in <code>s</code>,
+ *         or <code>s</code> itself if the <code>substring</code> is empty,
+ *         or <code>NULL</code> if <code>substring</code> is not in <code>s</code>.
+ * @stable ICU 2.4
+ *
+ * @see u_strstr
+ * @see u_strFindLast
+ */
+U_STABLE UChar * U_EXPORT2
+u_strFindLast(const UChar *s, int32_t length, const UChar *substring, int32_t subLength);
+
+/**
+ * Find the last occurrence of a BMP code point in a string.
+ * A surrogate code point is found only if its match in the text is not
+ * part of a surrogate pair.
+ * A NUL character is found at the string terminator.
+ *
+ * @param s The string to search (NUL-terminated).
+ * @param c The BMP code point to find.
+ * @return A pointer to the last occurrence of <code>c</code> in <code>s</code>
+ *         or <code>NULL</code> if <code>c</code> is not in <code>s</code>.
+ * @stable ICU 2.4
+ *
+ * @see u_strrchr32
+ * @see u_memrchr
+ * @see u_strrstr
+ * @see u_strFindLast
+ */
+U_STABLE UChar * U_EXPORT2
+u_strrchr(const UChar *s, UChar c);
+
+/**
+ * Find the last occurrence of a code point in a string.
+ * A surrogate code point is found only if its match in the text is not
+ * part of a surrogate pair.
+ * A NUL character is found at the string terminator.
+ *
+ * @param s The string to search (NUL-terminated).
+ * @param c The code point to find.
+ * @return A pointer to the last occurrence of <code>c</code> in <code>s</code>
+ *         or <code>NULL</code> if <code>c</code> is not in <code>s</code>.
+ * @stable ICU 2.4
+ *
+ * @see u_strrchr
+ * @see u_memchr32
+ * @see u_strrstr
+ * @see u_strFindLast
+ */
+U_STABLE UChar * U_EXPORT2
+u_strrchr32(const UChar *s, UChar32 c);
+
+/**
+ * Locates the first occurrence in the string <code>string</code> of any of the characters
+ * in the string <code>matchSet</code>.
+ * Works just like C's strpbrk but with Unicode.
+ *
+ * @param string The string in which to search, NUL-terminated.
+ * @param matchSet A NUL-terminated string defining a set of code points
+ *                 for which to search in the text string.
+ * @return A pointer to the  character in <code>string</code> that matches one of the
+ *         characters in <code>matchSet</code>, or NULL if no such character is found.
+ * @stable ICU 2.0
+ */
+U_STABLE UChar * U_EXPORT2
+u_strpbrk(const UChar *string, const UChar *matchSet);
+
+/**
+ * Returns the number of consecutive characters in <code>string</code>,
+ * beginning with the first, that do not occur somewhere in <code>matchSet</code>.
+ * Works just like C's strcspn but with Unicode.
+ *
+ * @param string The string in which to search, NUL-terminated.
+ * @param matchSet A NUL-terminated string defining a set of code points
+ *                 for which to search in the text string.
+ * @return The number of initial characters in <code>string</code> that do not
+ *         occur in <code>matchSet</code>.
+ * @see u_strspn
+ * @stable ICU 2.0
+ */
+U_STABLE int32_t U_EXPORT2
+u_strcspn(const UChar *string, const UChar *matchSet);
+
+/**
+ * Returns the number of consecutive characters in <code>string</code>,
+ * beginning with the first, that occur somewhere in <code>matchSet</code>.
+ * Works just like C's strspn but with Unicode.
+ *
+ * @param string The string in which to search, NUL-terminated.
+ * @param matchSet A NUL-terminated string defining a set of code points
+ *                 for which to search in the text string.
+ * @return The number of initial characters in <code>string</code> that do
+ *         occur in <code>matchSet</code>.
+ * @see u_strcspn
+ * @stable ICU 2.0
+ */
+U_STABLE int32_t U_EXPORT2
+u_strspn(const UChar *string, const UChar *matchSet);
+
+/**
+ * The string tokenizer API allows an application to break a string into
+ * tokens. Unlike strtok(), the saveState (the current pointer within the
+ * original string) is maintained in saveState. In the first call, the
+ * argument src is a pointer to the string. In subsequent calls to
+ * return successive tokens of that string, src must be specified as
+ * NULL. The value saveState is set by this function to maintain the
+ * function's position within the string, and on each subsequent call
+ * you must give this argument the same variable. This function does
+ * handle surrogate pairs. This function is similar to the strtok_r()
+ * the POSIX Threads Extension (1003.1c-1995) version.
+ *
+ * @param src String containing token(s). This string will be modified.
+ *            After the first call to u_strtok_r(), this argument must
+ *            be NULL to get to the next token.
+ * @param delim Set of delimiter characters (Unicode code points).
+ * @param saveState The current pointer within the original string,
+ *              which is set by this function. The saveState
+ *              parameter should the address of a local variable of type
+ *              UChar *. (i.e. defined "UChar *myLocalSaveState" and use
+ *              &myLocalSaveState for this parameter).
+ * @return A pointer to the next token found in src, or NULL
+ *         when there are no more tokens.
+ * @stable ICU 2.0
+ */
+U_STABLE UChar * U_EXPORT2
+u_strtok_r(UChar    *src, 
+     const UChar    *delim,
+           UChar   **saveState);
+
+/**
+ * Compare two Unicode strings for bitwise equality (code unit order).
+ *
+ * @param s1 A string to compare.
+ * @param s2 A string to compare.
+ * @return 0 if <code>s1</code> and <code>s2</code> are bitwise equal; a negative
+ * value if <code>s1</code> is bitwise less than <code>s2,</code>; a positive
+ * value if <code>s1</code> is bitwise greater than <code>s2</code>.
+ * @stable ICU 2.0
+ */
+U_STABLE int32_t  U_EXPORT2
+u_strcmp(const UChar     *s1, 
+         const UChar     *s2);
+
+/**
+ * Compare two Unicode strings in code point order.
+ * See u_strCompare for details.
+ *
+ * @param s1 A string to compare.
+ * @param s2 A string to compare.
+ * @return a negative/zero/positive integer corresponding to whether
+ * the first string is less than/equal to/greater than the second one
+ * in code point order
+ * @stable ICU 2.0
+ */
+U_STABLE int32_t U_EXPORT2
+u_strcmpCodePointOrder(const UChar *s1, const UChar *s2);
+
+/**
+ * Compare two Unicode strings (binary order).
+ *
+ * The comparison can be done in code unit order or in code point order.
+ * They differ only in UTF-16 when
+ * comparing supplementary code points (U+10000..U+10ffff)
+ * to BMP code points near the end of the BMP (i.e., U+e000..U+ffff).
+ * In code unit order, high BMP code points sort after supplementary code points
+ * because they are stored as pairs of surrogates which are at U+d800..U+dfff.
+ *
+ * This functions works with strings of different explicitly specified lengths
+ * unlike the ANSI C-like u_strcmp() and u_memcmp() etc.
+ * NUL-terminated strings are possible with length arguments of -1.
+ *
+ * @param s1 First source string.
+ * @param length1 Length of first source string, or -1 if NUL-terminated.
+ *
+ * @param s2 Second source string.
+ * @param length2 Length of second source string, or -1 if NUL-terminated.
+ *
+ * @param codePointOrder Choose between code unit order (FALSE)
+ *                       and code point order (TRUE).
+ *
+ * @return <0 or 0 or >0 as usual for string comparisons
+ *
+ * @stable ICU 2.2
+ */
+U_STABLE int32_t U_EXPORT2
+u_strCompare(const UChar *s1, int32_t length1,
+             const UChar *s2, int32_t length2,
+             UBool codePointOrder);
+
+/**
+ * Compare two Unicode strings (binary order)
+ * as presented by UCharIterator objects.
+ * Works otherwise just like u_strCompare().
+ *
+ * Both iterators are reset to their start positions.
+ * When the function returns, it is undefined where the iterators
+ * have stopped.
+ *
+ * @param iter1 First source string iterator.
+ * @param iter2 Second source string iterator.
+ * @param codePointOrder Choose between code unit order (FALSE)
+ *                       and code point order (TRUE).
+ *
+ * @return <0 or 0 or >0 as usual for string comparisons
+ *
+ * @see u_strCompare
+ *
+ * @stable ICU 2.6
+ */
+U_STABLE int32_t U_EXPORT2
+u_strCompareIter(UCharIterator *iter1, UCharIterator *iter2, UBool codePointOrder);
+
+/**
+ * Compare two strings case-insensitively using full case folding.
+ * This is equivalent to
+ *   u_strCompare(u_strFoldCase(s1, options),
+ *                u_strFoldCase(s2, options),
+ *                (options&U_COMPARE_CODE_POINT_ORDER)!=0).
+ *
+ * The comparison can be done in UTF-16 code unit order or in code point order.
+ * They differ only when comparing supplementary code points (U+10000..U+10ffff)
+ * to BMP code points near the end of the BMP (i.e., U+e000..U+ffff).
+ * In code unit order, high BMP code points sort after supplementary code points
+ * because they are stored as pairs of surrogates which are at U+d800..U+dfff.
+ *
+ * This functions works with strings of different explicitly specified lengths
+ * unlike the ANSI C-like u_strcmp() and u_memcmp() etc.
+ * NUL-terminated strings are possible with length arguments of -1.
+ *
+ * @param s1 First source string.
+ * @param length1 Length of first source string, or -1 if NUL-terminated.
+ *
+ * @param s2 Second source string.
+ * @param length2 Length of second source string, or -1 if NUL-terminated.
+ *
+ * @param options A bit set of options:
+ *   - U_FOLD_CASE_DEFAULT or 0 is used for default options:
+ *     Comparison in code unit order with default case folding.
+ *
+ *   - U_COMPARE_CODE_POINT_ORDER
+ *     Set to choose code point order instead of code unit order
+ *     (see u_strCompare for details).
+ *
+ *   - U_FOLD_CASE_EXCLUDE_SPECIAL_I
+ *
+ * @param pErrorCode Must be a valid pointer to an error code value,
+ *                  which must not indicate a failure before the function call.
+ *
+ * @return <0 or 0 or >0 as usual for string comparisons
+ *
+ * @stable ICU 2.2
+ */
+U_STABLE int32_t U_EXPORT2
+u_strCaseCompare(const UChar *s1, int32_t length1,
+                 const UChar *s2, int32_t length2,
+                 uint32_t options,
+                 UErrorCode *pErrorCode);
+
+/**
+ * Compare two ustrings for bitwise equality. 
+ * Compares at most <code>n</code> characters.
+ *
+ * @param ucs1 A string to compare (can be NULL/invalid if n<=0).
+ * @param ucs2 A string to compare (can be NULL/invalid if n<=0).
+ * @param n The maximum number of characters to compare; always returns 0 if n<=0.
+ * @return 0 if <code>s1</code> and <code>s2</code> are bitwise equal; a negative
+ * value if <code>s1</code> is bitwise less than <code>s2</code>; a positive
+ * value if <code>s1</code> is bitwise greater than <code>s2</code>.
+ * @stable ICU 2.0
+ */
+U_STABLE int32_t U_EXPORT2
+u_strncmp(const UChar     *ucs1, 
+     const UChar     *ucs2, 
+     int32_t     n);
+
+/**
+ * Compare two Unicode strings in code point order.
+ * This is different in UTF-16 from u_strncmp() if supplementary characters are present.
+ * For details, see u_strCompare().
+ *
+ * @param s1 A string to compare.
+ * @param s2 A string to compare.
+ * @param n The maximum number of characters to compare.
+ * @return a negative/zero/positive integer corresponding to whether
+ * the first string is less than/equal to/greater than the second one
+ * in code point order
+ * @stable ICU 2.0
+ */
+U_STABLE int32_t U_EXPORT2
+u_strncmpCodePointOrder(const UChar *s1, const UChar *s2, int32_t n);
+
+/**
+ * Compare two strings case-insensitively using full case folding.
+ * This is equivalent to u_strcmp(u_strFoldCase(s1, options), u_strFoldCase(s2, options)).
+ *
+ * @param s1 A string to compare.
+ * @param s2 A string to compare.
+ * @param options A bit set of options:
+ *   - U_FOLD_CASE_DEFAULT or 0 is used for default options:
+ *     Comparison in code unit order with default case folding.
+ *
+ *   - U_COMPARE_CODE_POINT_ORDER
+ *     Set to choose code point order instead of code unit order
+ *     (see u_strCompare for details).
+ *
+ *   - U_FOLD_CASE_EXCLUDE_SPECIAL_I
+ *
+ * @return A negative, zero, or positive integer indicating the comparison result.
+ * @stable ICU 2.0
+ */
+U_STABLE int32_t U_EXPORT2
+u_strcasecmp(const UChar *s1, const UChar *s2, uint32_t options);
+
+/**
+ * Compare two strings case-insensitively using full case folding.
+ * This is equivalent to u_strcmp(u_strFoldCase(s1, at most n, options),
+ * u_strFoldCase(s2, at most n, options)).
+ *
+ * @param s1 A string to compare.
+ * @param s2 A string to compare.
+ * @param n The maximum number of characters each string to case-fold and then compare.
+ * @param options A bit set of options:
+ *   - U_FOLD_CASE_DEFAULT or 0 is used for default options:
+ *     Comparison in code unit order with default case folding.
+ *
+ *   - U_COMPARE_CODE_POINT_ORDER
+ *     Set to choose code point order instead of code unit order
+ *     (see u_strCompare for details).
+ *
+ *   - U_FOLD_CASE_EXCLUDE_SPECIAL_I
+ *
+ * @return A negative, zero, or positive integer indicating the comparison result.
+ * @stable ICU 2.0
+ */
+U_STABLE int32_t U_EXPORT2
+u_strncasecmp(const UChar *s1, const UChar *s2, int32_t n, uint32_t options);
+
+/**
+ * Compare two strings case-insensitively using full case folding.
+ * This is equivalent to u_strcmp(u_strFoldCase(s1, n, options),
+ * u_strFoldCase(s2, n, options)).
+ *
+ * @param s1 A string to compare.
+ * @param s2 A string to compare.
+ * @param length The number of characters in each string to case-fold and then compare.
+ * @param options A bit set of options:
+ *   - U_FOLD_CASE_DEFAULT or 0 is used for default options:
+ *     Comparison in code unit order with default case folding.
+ *
+ *   - U_COMPARE_CODE_POINT_ORDER
+ *     Set to choose code point order instead of code unit order
+ *     (see u_strCompare for details).
+ *
+ *   - U_FOLD_CASE_EXCLUDE_SPECIAL_I
+ *
+ * @return A negative, zero, or positive integer indicating the comparison result.
+ * @stable ICU 2.0
+ */
+U_STABLE int32_t U_EXPORT2
+u_memcasecmp(const UChar *s1, const UChar *s2, int32_t length, uint32_t options);
+
+/**
+ * Copy a ustring. Adds a null terminator.
+ *
+ * @param dst The destination string.
+ * @param src The source string.
+ * @return A pointer to <code>dst</code>.
+ * @stable ICU 2.0
+ */
+U_STABLE UChar* U_EXPORT2
+u_strcpy(UChar     *dst, 
+    const UChar     *src);
+
+/**
+ * Copy a ustring.
+ * Copies at most <code>n</code> characters.  The result will be null terminated
+ * if the length of <code>src</code> is less than <code>n</code>.
+ *
+ * @param dst The destination string.
+ * @param src The source string (can be NULL/invalid if n<=0).
+ * @param n The maximum number of characters to copy; no-op if <=0.
+ * @return A pointer to <code>dst</code>.
+ * @stable ICU 2.0
+ */
+U_STABLE UChar* U_EXPORT2
+u_strncpy(UChar     *dst, 
+     const UChar     *src, 
+     int32_t     n);
+
+#if !UCONFIG_NO_CONVERSION
+
+/**
+ * Copy a byte string encoded in the default codepage to a ustring.
+ * Adds a null terminator.
+ * Performs a host byte to UChar conversion
+ *
+ * @param dst The destination string.
+ * @param src The source string.
+ * @return A pointer to <code>dst</code>.
+ * @stable ICU 2.0
+ */
+U_STABLE UChar* U_EXPORT2 u_uastrcpy(UChar *dst,
+               const char *src );
+
+/**
+ * Copy a byte string encoded in the default codepage to a ustring.
+ * Copies at most <code>n</code> characters.  The result will be null terminated
+ * if the length of <code>src</code> is less than <code>n</code>.
+ * Performs a host byte to UChar conversion
+ *
+ * @param dst The destination string.
+ * @param src The source string.
+ * @param n The maximum number of characters to copy.
+ * @return A pointer to <code>dst</code>.
+ * @stable ICU 2.0
+ */
+U_STABLE UChar* U_EXPORT2 u_uastrncpy(UChar *dst,
+            const char *src,
+            int32_t n);
+
+/**
+ * Copy ustring to a byte string encoded in the default codepage.
+ * Adds a null terminator.
+ * Performs a UChar to host byte conversion
+ *
+ * @param dst The destination string.
+ * @param src The source string.
+ * @return A pointer to <code>dst</code>.
+ * @stable ICU 2.0
+ */
+U_STABLE char* U_EXPORT2 u_austrcpy(char *dst,
+            const UChar *src );
+
+/**
+ * Copy ustring to a byte string encoded in the default codepage.
+ * Copies at most <code>n</code> characters.  The result will be null terminated
+ * if the length of <code>src</code> is less than <code>n</code>.
+ * Performs a UChar to host byte conversion
+ *
+ * @param dst The destination string.
+ * @param src The source string.
+ * @param n The maximum number of characters to copy.
+ * @return A pointer to <code>dst</code>.
+ * @stable ICU 2.0
+ */
+U_STABLE char* U_EXPORT2 u_austrncpy(char *dst,
+            const UChar *src,
+            int32_t n );
+
+#endif
+
+/**
+ * Synonym for memcpy(), but with UChars only.
+ * @param dest The destination string
+ * @param src The source string (can be NULL/invalid if count<=0)
+ * @param count The number of characters to copy; no-op if <=0
+ * @return A pointer to <code>dest</code>
+ * @stable ICU 2.0
+ */
+U_STABLE UChar* U_EXPORT2
+u_memcpy(UChar *dest, const UChar *src, int32_t count);
+
+/**
+ * Synonym for memmove(), but with UChars only.
+ * @param dest The destination string
+ * @param src The source string (can be NULL/invalid if count<=0)
+ * @param count The number of characters to move; no-op if <=0
+ * @return A pointer to <code>dest</code>
+ * @stable ICU 2.0
+ */
+U_STABLE UChar* U_EXPORT2
+u_memmove(UChar *dest, const UChar *src, int32_t count);
+
+/**
+ * Initialize <code>count</code> characters of <code>dest</code> to <code>c</code>.
+ *
+ * @param dest The destination string.
+ * @param c The character to initialize the string.
+ * @param count The maximum number of characters to set.
+ * @return A pointer to <code>dest</code>.
+ * @stable ICU 2.0
+ */
+U_STABLE UChar* U_EXPORT2
+u_memset(UChar *dest, UChar c, int32_t count);
+
+/**
+ * Compare the first <code>count</code> UChars of each buffer.
+ *
+ * @param buf1 The first string to compare.
+ * @param buf2 The second string to compare.
+ * @param count The maximum number of UChars to compare.
+ * @return When buf1 < buf2, a negative number is returned.
+ *      When buf1 == buf2, 0 is returned.
+ *      When buf1 > buf2, a positive number is returned.
+ * @stable ICU 2.0
+ */
+U_STABLE int32_t U_EXPORT2
+u_memcmp(const UChar *buf1, const UChar *buf2, int32_t count);
+
+/**
+ * Compare two Unicode strings in code point order.
+ * This is different in UTF-16 from u_memcmp() if supplementary characters are present.
+ * For details, see u_strCompare().
+ *
+ * @param s1 A string to compare.
+ * @param s2 A string to compare.
+ * @param count The maximum number of characters to compare.
+ * @return a negative/zero/positive integer corresponding to whether
+ * the first string is less than/equal to/greater than the second one
+ * in code point order
+ * @stable ICU 2.0
+ */
+U_STABLE int32_t U_EXPORT2
+u_memcmpCodePointOrder(const UChar *s1, const UChar *s2, int32_t count);
+
+/**
+ * Find the first occurrence of a BMP code point in a string.
+ * A surrogate code point is found only if its match in the text is not
+ * part of a surrogate pair.
+ * A NUL character is found at the string terminator.
+ *
+ * @param s The string to search (contains <code>count</code> UChars).
+ * @param c The BMP code point to find.
+ * @param count The length of the string.
+ * @return A pointer to the first occurrence of <code>c</code> in <code>s</code>
+ *         or <code>NULL</code> if <code>c</code> is not in <code>s</code>.
+ * @stable ICU 2.0
+ *
+ * @see u_strchr
+ * @see u_memchr32
+ * @see u_strFindFirst
+ */
+U_STABLE UChar* U_EXPORT2
+u_memchr(const UChar *s, UChar c, int32_t count);
+
+/**
+ * Find the first occurrence of a code point in a string.
+ * A surrogate code point is found only if its match in the text is not
+ * part of a surrogate pair.
+ * A NUL character is found at the string terminator.
+ *
+ * @param s The string to search (contains <code>count</code> UChars).
+ * @param c The code point to find.
+ * @param count The length of the string.
+ * @return A pointer to the first occurrence of <code>c</code> in <code>s</code>
+ *         or <code>NULL</code> if <code>c</code> is not in <code>s</code>.
+ * @stable ICU 2.0
+ *
+ * @see u_strchr32
+ * @see u_memchr
+ * @see u_strFindFirst
+ */
+U_STABLE UChar* U_EXPORT2
+u_memchr32(const UChar *s, UChar32 c, int32_t count);
+
+/**
+ * Find the last occurrence of a BMP code point in a string.
+ * A surrogate code point is found only if its match in the text is not
+ * part of a surrogate pair.
+ * A NUL character is found at the string terminator.
+ *
+ * @param s The string to search (contains <code>count</code> UChars).
+ * @param c The BMP code point to find.
+ * @param count The length of the string.
+ * @return A pointer to the last occurrence of <code>c</code> in <code>s</code>
+ *         or <code>NULL</code> if <code>c</code> is not in <code>s</code>.
+ * @stable ICU 2.4
+ *
+ * @see u_strrchr
+ * @see u_memrchr32
+ * @see u_strFindLast
+ */
+U_STABLE UChar* U_EXPORT2
+u_memrchr(const UChar *s, UChar c, int32_t count);
+
+/**
+ * Find the last occurrence of a code point in a string.
+ * A surrogate code point is found only if its match in the text is not
+ * part of a surrogate pair.
+ * A NUL character is found at the string terminator.
+ *
+ * @param s The string to search (contains <code>count</code> UChars).
+ * @param c The code point to find.
+ * @param count The length of the string.
+ * @return A pointer to the last occurrence of <code>c</code> in <code>s</code>
+ *         or <code>NULL</code> if <code>c</code> is not in <code>s</code>.
+ * @stable ICU 2.4
+ *
+ * @see u_strrchr32
+ * @see u_memrchr
+ * @see u_strFindLast
+ */
+U_STABLE UChar* U_EXPORT2
+u_memrchr32(const UChar *s, UChar32 c, int32_t count);
+
+/**
+ * Unicode String literals in C.
+ * We need one macro to declare a variable for the string
+ * and to statically preinitialize it if possible,
+ * and a second macro to dynamically initialize such a string variable if necessary.
+ *
+ * The macros are defined for maximum performance.
+ * They work only for strings that contain "invariant characters", i.e.,
+ * only latin letters, digits, and some punctuation.
+ * See utypes.h for details.
+ *
+ * A pair of macros for a single string must be used with the same
+ * parameters.
+ * The string parameter must be a C string literal.
+ * The length of the string, not including the terminating
+ * <code>NUL</code>, must be specified as a constant.
+ * The U_STRING_DECL macro should be invoked exactly once for one
+ * such string variable before it is used.
+ *
+ * Usage:
+ * <pre>
+ *    U_STRING_DECL(ustringVar1, "Quick-Fox 2", 11);
+ *    U_STRING_DECL(ustringVar2, "jumps 5%", 8);
+ *    static UBool didInit=FALSE;
+ * 
+ *    int32_t function() {
+ *        if(!didInit) {
+ *            U_STRING_INIT(ustringVar1, "Quick-Fox 2", 11);
+ *            U_STRING_INIT(ustringVar2, "jumps 5%", 8);
+ *            didInit=TRUE;
+ *        }
+ *        return u_strcmp(ustringVar1, ustringVar2);
+ *    }
+ * </pre>
+ * 
+ * Note that the macros will NOT consistently work if their argument is another <code>#define</code>. 
+ *  The following will not work on all platforms, don't use it.
+ * 
+ * <pre>
+ *     #define GLUCK "Mr. Gluck"
+ *     U_STRING_DECL(var, GLUCK, 9)
+ *     U_STRING_INIT(var, GLUCK, 9)
+ * </pre>
+ * 
+ * Instead, use the string literal "Mr. Gluck"  as the argument to both macro
+ * calls.
+ *
+ *
+ * @stable ICU 2.0
+ */
+#if defined(U_DECLARE_UTF16)
+#   define U_STRING_DECL(var, cs, length) static const UChar *var=(const UChar *)U_DECLARE_UTF16(cs)
+    /**@stable ICU 2.0 */
+#   define U_STRING_INIT(var, cs, length)
+#elif U_SIZEOF_WCHAR_T==U_SIZEOF_UCHAR && (U_CHARSET_FAMILY==U_ASCII_FAMILY || (U_SIZEOF_UCHAR == 2 && defined(U_WCHAR_IS_UTF16)))
+#   define U_STRING_DECL(var, cs, length) static const UChar var[(length)+1]=L ## cs
+    /**@stable ICU 2.0 */
+#   define U_STRING_INIT(var, cs, length)
+#elif U_SIZEOF_UCHAR==1 && U_CHARSET_FAMILY==U_ASCII_FAMILY
+#   define U_STRING_DECL(var, cs, length) static const UChar var[(length)+1]=cs
+    /**@stable ICU 2.0 */
+#   define U_STRING_INIT(var, cs, length)
+#else
+#   define U_STRING_DECL(var, cs, length) static UChar var[(length)+1]
+    /**@stable ICU 2.0 */
+#   define U_STRING_INIT(var, cs, length) u_charsToUChars(cs, var, length+1)
+#endif
+
+/**
+ * Unescape a string of characters and write the resulting
+ * Unicode characters to the destination buffer.  The following escape
+ * sequences are recognized:
+ *
+ * \\uhhhh       4 hex digits; h in [0-9A-Fa-f]
+ * \\Uhhhhhhhh   8 hex digits
+ * \\xhh         1-2 hex digits
+ * \\x{h...}     1-8 hex digits
+ * \\ooo         1-3 octal digits; o in [0-7]
+ * \\cX          control-X; X is masked with 0x1F
+ *
+ * as well as the standard ANSI C escapes:
+ *
+ * \\a => U+0007, \\b => U+0008, \\t => U+0009, \\n => U+000A,
+ * \\v => U+000B, \\f => U+000C, \\r => U+000D, \\e => U+001B,
+ * \\&quot; => U+0022, \\' => U+0027, \\? => U+003F, \\\\ => U+005C
+ *
+ * Anything else following a backslash is generically escaped.  For
+ * example, "[a\\-z]" returns "[a-z]".
+ *
+ * If an escape sequence is ill-formed, this method returns an empty
+ * string.  An example of an ill-formed sequence is "\\u" followed by
+ * fewer than 4 hex digits.
+ *
+ * The above characters are recognized in the compiler's codepage,
+ * that is, they are coded as 'u', '\\', etc.  Characters that are
+ * not parts of escape sequences are converted using u_charsToUChars().
+ *
+ * This function is similar to UnicodeString::unescape() but not
+ * identical to it.  The latter takes a source UnicodeString, so it
+ * does escape recognition but no conversion.
+ *
+ * @param src a zero-terminated string of invariant characters
+ * @param dest pointer to buffer to receive converted and unescaped
+ * text and, if there is room, a zero terminator.  May be NULL for
+ * preflighting, in which case no UChars will be written, but the
+ * return value will still be valid.  On error, an empty string is
+ * stored here (if possible).
+ * @param destCapacity the number of UChars that may be written at
+ * dest.  Ignored if dest == NULL.
+ * @return the length of unescaped string.
+ * @see u_unescapeAt
+ * @see UnicodeString#unescape()
+ * @see UnicodeString#unescapeAt()
+ * @stable ICU 2.0
+ */
+U_STABLE int32_t U_EXPORT2
+u_unescape(const char *src,
+           UChar *dest, int32_t destCapacity);
+
+U_CDECL_BEGIN
+/**
+ * Callback function for u_unescapeAt() that returns a character of
+ * the source text given an offset and a context pointer.  The context
+ * pointer will be whatever is passed into u_unescapeAt().
+ *
+ * @param offset pointer to the offset that will be passed to u_unescapeAt().
+ * @param context an opaque pointer passed directly into u_unescapeAt()
+ * @return the character represented by the escape sequence at
+ * offset
+ * @see u_unescapeAt
+ * @stable ICU 2.0
+ */
+typedef UChar (U_CALLCONV *UNESCAPE_CHAR_AT)(int32_t offset, void *context);
+U_CDECL_END
+
+/**
+ * Unescape a single sequence. The character at offset-1 is assumed
+ * (without checking) to be a backslash.  This method takes a callback
+ * pointer to a function that returns the UChar at a given offset.  By
+ * varying this callback, ICU functions are able to unescape char*
+ * strings, UnicodeString objects, and UFILE pointers.
+ *
+ * If offset is out of range, or if the escape sequence is ill-formed,
+ * (UChar32)0xFFFFFFFF is returned.  See documentation of u_unescape()
+ * for a list of recognized sequences.
+ *
+ * @param charAt callback function that returns a UChar of the source
+ * text given an offset and a context pointer.
+ * @param offset pointer to the offset that will be passed to charAt.
+ * The offset value will be updated upon return to point after the
+ * last parsed character of the escape sequence.  On error the offset
+ * is unchanged.
+ * @param length the number of characters in the source text.  The
+ * last character of the source text is considered to be at offset
+ * length-1.
+ * @param context an opaque pointer passed directly into charAt.
+ * @return the character represented by the escape sequence at
+ * offset, or (UChar32)0xFFFFFFFF on error.
+ * @see u_unescape()
+ * @see UnicodeString#unescape()
+ * @see UnicodeString#unescapeAt()
+ * @stable ICU 2.0
+ */
+U_STABLE UChar32 U_EXPORT2
+u_unescapeAt(UNESCAPE_CHAR_AT charAt,
+             int32_t *offset,
+             int32_t length,
+             void *context);
+
+/**
+ * Uppercase the characters in a string.
+ * Casing is locale-dependent and context-sensitive.
+ * The result may be longer or shorter than the original.
+ * The source string and the destination buffer are allowed to overlap.
+ *
+ * @param dest      A buffer for the result string. The result will be zero-terminated if
+ *                  the buffer is large enough.
+ * @param destCapacity The size of the buffer (number of UChars). If it is 0, then
+ *                  dest may be NULL and the function will only return the length of the result
+ *                  without writing any of the result string.
+ * @param src       The original string
+ * @param srcLength The length of the original string. If -1, then src must be zero-terminated.
+ * @param locale    The locale to consider, or "" for the root locale or NULL for the default locale.
+ * @param pErrorCode Must be a valid pointer to an error code value,
+ *                  which must not indicate a failure before the function call.
+ * @return The length of the result string. It may be greater than destCapacity. In that case,
+ *         only some of the result was written to the destination buffer.
+ * @stable ICU 2.0
+ */
+U_STABLE int32_t U_EXPORT2
+u_strToUpper(UChar *dest, int32_t destCapacity,
+             const UChar *src, int32_t srcLength,
+             const char *locale,
+             UErrorCode *pErrorCode);
+
+/**
+ * Lowercase the characters in a string.
+ * Casing is locale-dependent and context-sensitive.
+ * The result may be longer or shorter than the original.
+ * The source string and the destination buffer are allowed to overlap.
+ *
+ * @param dest      A buffer for the result string. The result will be zero-terminated if
+ *                  the buffer is large enough.
+ * @param destCapacity The size of the buffer (number of UChars). If it is 0, then
+ *                  dest may be NULL and the function will only return the length of the result
+ *                  without writing any of the result string.
+ * @param src       The original string
+ * @param srcLength The length of the original string. If -1, then src must be zero-terminated.
+ * @param locale    The locale to consider, or "" for the root locale or NULL for the default locale.
+ * @param pErrorCode Must be a valid pointer to an error code value,
+ *                  which must not indicate a failure before the function call.
+ * @return The length of the result string. It may be greater than destCapacity. In that case,
+ *         only some of the result was written to the destination buffer.
+ * @stable ICU 2.0
+ */
+U_STABLE int32_t U_EXPORT2
+u_strToLower(UChar *dest, int32_t destCapacity,
+             const UChar *src, int32_t srcLength,
+             const char *locale,
+             UErrorCode *pErrorCode);
+
+#if !UCONFIG_NO_BREAK_ITERATION
+
+/**
+ * Titlecase a string.
+ * Casing is locale-dependent and context-sensitive.
+ * Titlecasing uses a break iterator to find the first characters of words
+ * that are to be titlecased. It titlecases those characters and lowercases
+ * all others.
+ *
+ * The titlecase break iterator can be provided to customize for arbitrary
+ * styles, using rules and dictionaries beyond the standard iterators.
+ * It may be more efficient to always provide an iterator to avoid
+ * opening and closing one for each string.
+ * The standard titlecase iterator for the root locale implements the
+ * algorithm of Unicode TR 21.
+ *
+ * This function uses only the setText(), first() and next() methods of the
+ * provided break iterator.
+ *
+ * The result may be longer or shorter than the original.
+ * The source string and the destination buffer are allowed to overlap.
+ *
+ * @param dest      A buffer for the result string. The result will be zero-terminated if
+ *                  the buffer is large enough.
+ * @param destCapacity The size of the buffer (number of UChars). If it is 0, then
+ *                  dest may be NULL and the function will only return the length of the result
+ *                  without writing any of the result string.
+ * @param src       The original string
+ * @param srcLength The length of the original string. If -1, then src must be zero-terminated.
+ * @param titleIter A break iterator to find the first characters of words
+ *                  that are to be titlecased.
+ *                  If none is provided (NULL), then a standard titlecase
+ *                  break iterator is opened.
+ * @param locale    The locale to consider, or "" for the root locale or NULL for the default locale.
+ * @param pErrorCode Must be a valid pointer to an error code value,
+ *                  which must not indicate a failure before the function call.
+ * @return The length of the result string. It may be greater than destCapacity. In that case,
+ *         only some of the result was written to the destination buffer.
+ * @stable ICU 2.1
+ */
+U_STABLE int32_t U_EXPORT2
+u_strToTitle(UChar *dest, int32_t destCapacity,
+             const UChar *src, int32_t srcLength,
+             UBreakIterator *titleIter,
+             const char *locale,
+             UErrorCode *pErrorCode);
+
+#endif
+
+/**
+ * Case-folds the characters in a string.
+ *
+ * Case-folding is locale-independent and not context-sensitive,
+ * but there is an option for whether to include or exclude mappings for dotted I
+ * and dotless i that are marked with 'T' in CaseFolding.txt.
+ *
+ * The result may be longer or shorter than the original.
+ * The source string and the destination buffer are allowed to overlap.
+ *
+ * @param dest      A buffer for the result string. The result will be zero-terminated if
+ *                  the buffer is large enough.
+ * @param destCapacity The size of the buffer (number of UChars). If it is 0, then
+ *                  dest may be NULL and the function will only return the length of the result
+ *                  without writing any of the result string.
+ * @param src       The original string
+ * @param srcLength The length of the original string. If -1, then src must be zero-terminated.
+ * @param options   Either U_FOLD_CASE_DEFAULT or U_FOLD_CASE_EXCLUDE_SPECIAL_I
+ * @param pErrorCode Must be a valid pointer to an error code value,
+ *                  which must not indicate a failure before the function call.
+ * @return The length of the result string. It may be greater than destCapacity. In that case,
+ *         only some of the result was written to the destination buffer.
+ * @stable ICU 2.0
+ */
+U_STABLE int32_t U_EXPORT2
+u_strFoldCase(UChar *dest, int32_t destCapacity,
+              const UChar *src, int32_t srcLength,
+              uint32_t options,
+              UErrorCode *pErrorCode);
+
+#if defined(U_WCHAR_IS_UTF16) || defined(U_WCHAR_IS_UTF32) || !UCONFIG_NO_CONVERSION
+/**
+ * Convert a UTF-16 string to a wchar_t string.
+ * If it is known at compile time that wchar_t strings are in UTF-16 or UTF-32, then
+ * this function simply calls the fast, dedicated function for that.
+ * Otherwise, two conversions UTF-16 -> default charset -> wchar_t* are performed.
+ *
+ * @param dest          A buffer for the result string. The result will be zero-terminated if
+ *                      the buffer is large enough.
+ * @param destCapacity  The size of the buffer (number of wchar_t's). If it is 0, then
+ *                      dest may be NULL and the function will only return the length of the 
+ *                      result without writing any of the result string (pre-flighting).
+ * @param pDestLength   A pointer to receive the number of units written to the destination. If 
+ *                      pDestLength!=NULL then *pDestLength is always set to the 
+ *                      number of output units corresponding to the transformation of 
+ *                      all the input units, even in case of a buffer overflow.
+ * @param src           The original source string
+ * @param srcLength     The length of the original string. If -1, then src must be zero-terminated.
+ * @param pErrorCode    Must be a valid pointer to an error code value,
+ *                      which must not indicate a failure before the function call.
+ * @return The pointer to destination buffer.
+ * @stable ICU 2.0
+ */
+U_STABLE wchar_t* U_EXPORT2
+u_strToWCS(wchar_t *dest, 
+           int32_t destCapacity,
+           int32_t *pDestLength,
+           const UChar *src, 
+           int32_t srcLength,
+           UErrorCode *pErrorCode);
+/**
+ * Convert a wchar_t string to UTF-16.
+ * If it is known at compile time that wchar_t strings are in UTF-16 or UTF-32, then
+ * this function simply calls the fast, dedicated function for that.
+ * Otherwise, two conversions wchar_t* -> default charset -> UTF-16 are performed.
+ *
+ * @param dest          A buffer for the result string. The result will be zero-terminated if
+ *                      the buffer is large enough.
+ * @param destCapacity  The size of the buffer (number of UChars). If it is 0, then
+ *                      dest may be NULL and the function will only return the length of the 
+ *                      result without writing any of the result string (pre-flighting).
+ * @param pDestLength   A pointer to receive the number of units written to the destination. If 
+ *                      pDestLength!=NULL then *pDestLength is always set to the 
+ *                      number of output units corresponding to the transformation of 
+ *                      all the input units, even in case of a buffer overflow.
+ * @param src           The original source string
+ * @param srcLength     The length of the original string. If -1, then src must be zero-terminated.
+ * @param pErrorCode    Must be a valid pointer to an error code value,
+ *                      which must not indicate a failure before the function call.
+ * @return The pointer to destination buffer.
+ * @stable ICU 2.0
+ */
+U_STABLE UChar* U_EXPORT2
+u_strFromWCS(UChar   *dest,
+             int32_t destCapacity, 
+             int32_t *pDestLength,
+             const wchar_t *src,
+             int32_t srcLength,
+             UErrorCode *pErrorCode);
+#endif /* defined(U_WCHAR_IS_UTF16) || defined(U_WCHAR_IS_UTF32) || !UCONFIG_NO_CONVERSION */
+
+/**
+ * Convert a UTF-16 string to UTF-8.
+ * If the input string is not well-formed, then the U_INVALID_CHAR_FOUND error code is set.
+ *
+ * @param dest          A buffer for the result string. The result will be zero-terminated if
+ *                      the buffer is large enough.
+ * @param destCapacity  The size of the buffer (number of chars). If it is 0, then
+ *                      dest may be NULL and the function will only return the length of the 
+ *                      result without writing any of the result string (pre-flighting).
+ * @param pDestLength   A pointer to receive the number of units written to the destination. If 
+ *                      pDestLength!=NULL then *pDestLength is always set to the 
+ *                      number of output units corresponding to the transformation of 
+ *                      all the input units, even in case of a buffer overflow.
+ * @param src           The original source string
+ * @param srcLength     The length of the original string. If -1, then src must be zero-terminated.
+ * @param pErrorCode    Must be a valid pointer to an error code value,
+ *                      which must not indicate a failure before the function call.
+ * @return The pointer to destination buffer.
+ * @stable ICU 2.0
+ * @see u_strToUTF8WithSub
+ * @see u_strFromUTF8
+ */
+U_STABLE char* U_EXPORT2 
+u_strToUTF8(char *dest,           
+            int32_t destCapacity,
+            int32_t *pDestLength,
+            const UChar *src, 
+            int32_t srcLength,
+            UErrorCode *pErrorCode);
+
+/**
+ * Convert a UTF-8 string to UTF-16.
+ * If the input string is not well-formed, then the U_INVALID_CHAR_FOUND error code is set.
+ *
+ * @param dest          A buffer for the result string. The result will be zero-terminated if
+ *                      the buffer is large enough.
+ * @param destCapacity  The size of the buffer (number of UChars). If it is 0, then
+ *                      dest may be NULL and the function will only return the length of the 
+ *                      result without writing any of the result string (pre-flighting).
+ * @param pDestLength   A pointer to receive the number of units written to the destination. If 
+ *                      pDestLength!=NULL then *pDestLength is always set to the 
+ *                      number of output units corresponding to the transformation of 
+ *                      all the input units, even in case of a buffer overflow.
+ * @param src           The original source string
+ * @param srcLength     The length of the original string. If -1, then src must be zero-terminated.
+ * @param pErrorCode    Must be a valid pointer to an error code value,
+ *                      which must not indicate a failure before the function call.
+ * @return The pointer to destination buffer.
+ * @stable ICU 2.0
+ * @see u_strFromUTF8WithSub
+ * @see u_strFromUTF8Lenient
+ */
+U_STABLE UChar* U_EXPORT2
+u_strFromUTF8(UChar *dest,             
+              int32_t destCapacity,
+              int32_t *pDestLength,
+              const char *src, 
+              int32_t srcLength,
+              UErrorCode *pErrorCode);
+
+/**
+ * Convert a UTF-16 string to UTF-8.
+ *
+ * Same as u_strToUTF8() except for the additional subchar which is output for
+ * illegal input sequences, instead of stopping with the U_INVALID_CHAR_FOUND error code.
+ * With subchar==U_SENTINEL, this function behaves exactly like u_strToUTF8().
+ *
+ * @param dest          A buffer for the result string. The result will be zero-terminated if
+ *                      the buffer is large enough.
+ * @param destCapacity  The size of the buffer (number of chars). If it is 0, then
+ *                      dest may be NULL and the function will only return the length of the 
+ *                      result without writing any of the result string (pre-flighting).
+ * @param pDestLength   A pointer to receive the number of units written to the destination. If 
+ *                      pDestLength!=NULL then *pDestLength is always set to the 
+ *                      number of output units corresponding to the transformation of 
+ *                      all the input units, even in case of a buffer overflow.
+ * @param src           The original source string
+ * @param srcLength     The length of the original string. If -1, then src must be zero-terminated.
+ * @param subchar       The substitution character to use in place of an illegal input sequence,
+ *                      or U_SENTINEL if the function is to return with U_INVALID_CHAR_FOUND instead.
+ *                      A substitution character can be any valid Unicode code point (up to U+10FFFF)
+ *                      except for surrogate code points (U+D800..U+DFFF).
+ *                      The recommended value is U+FFFD "REPLACEMENT CHARACTER".
+ * @param pNumSubstitutions Output parameter receiving the number of substitutions if subchar>=0.
+ *                      Set to 0 if no substitutions occur or subchar<0.
+ *                      pNumSubstitutions can be NULL.
+ * @param pErrorCode    Pointer to a standard ICU error code. Its input value must
+ *                      pass the U_SUCCESS() test, or else the function returns
+ *                      immediately. Check for U_FAILURE() on output or use with
+ *                      function chaining. (See User Guide for details.)
+ * @return The pointer to destination buffer.
+ * @see u_strToUTF8
+ * @see u_strFromUTF8WithSub
+ * @stable ICU 3.6
+ */
+U_STABLE char* U_EXPORT2
+u_strToUTF8WithSub(char *dest,
+            int32_t destCapacity,
+            int32_t *pDestLength,
+            const UChar *src,
+            int32_t srcLength,
+            UChar32 subchar, int32_t *pNumSubstitutions,
+            UErrorCode *pErrorCode);
+
+/**
+ * Convert a UTF-8 string to UTF-16.
+ *
+ * Same as u_strFromUTF8() except for the additional subchar which is output for
+ * illegal input sequences, instead of stopping with the U_INVALID_CHAR_FOUND error code.
+ * With subchar==U_SENTINEL, this function behaves exactly like u_strFromUTF8().
+ *
+ * @param dest          A buffer for the result string. The result will be zero-terminated if
+ *                      the buffer is large enough.
+ * @param destCapacity  The size of the buffer (number of UChars). If it is 0, then
+ *                      dest may be NULL and the function will only return the length of the 
+ *                      result without writing any of the result string (pre-flighting).
+ * @param pDestLength   A pointer to receive the number of units written to the destination. If 
+ *                      pDestLength!=NULL then *pDestLength is always set to the 
+ *                      number of output units corresponding to the transformation of 
+ *                      all the input units, even in case of a buffer overflow.
+ * @param src           The original source string
+ * @param srcLength     The length of the original string. If -1, then src must be zero-terminated.
+ * @param subchar       The substitution character to use in place of an illegal input sequence,
+ *                      or U_SENTINEL if the function is to return with U_INVALID_CHAR_FOUND instead.
+ *                      A substitution character can be any valid Unicode code point (up to U+10FFFF)
+ *                      except for surrogate code points (U+D800..U+DFFF).
+ *                      The recommended value is U+FFFD "REPLACEMENT CHARACTER".
+ * @param pNumSubstitutions Output parameter receiving the number of substitutions if subchar>=0.
+ *                      Set to 0 if no substitutions occur or subchar<0.
+ *                      pNumSubstitutions can be NULL.
+ * @param pErrorCode    Pointer to a standard ICU error code. Its input value must
+ *                      pass the U_SUCCESS() test, or else the function returns
+ *                      immediately. Check for U_FAILURE() on output or use with
+ *                      function chaining. (See User Guide for details.)
+ * @return The pointer to destination buffer.
+ * @see u_strFromUTF8
+ * @see u_strFromUTF8Lenient
+ * @see u_strToUTF8WithSub
+ * @stable ICU 3.6
+ */
+U_STABLE UChar* U_EXPORT2
+u_strFromUTF8WithSub(UChar *dest,
+              int32_t destCapacity,
+              int32_t *pDestLength,
+              const char *src,
+              int32_t srcLength,
+              UChar32 subchar, int32_t *pNumSubstitutions,
+              UErrorCode *pErrorCode);
+
+/**
+ * Convert a UTF-8 string to UTF-16.
+ *
+ * Same as u_strFromUTF8() except that this function is designed to be very fast,
+ * which it achieves by being lenient about malformed UTF-8 sequences.
+ * This function is intended for use in environments where UTF-8 text is
+ * expected to be well-formed.
+ *
+ * Its semantics are:
+ * - Well-formed UTF-8 text is correctly converted to well-formed UTF-16 text.
+ * - The function will not read beyond the input string, nor write beyond
+ *   the destCapacity.
+ * - Malformed UTF-8 results in "garbage" 16-bit Unicode strings which may not
+ *   be well-formed UTF-16.
+ *   The function will resynchronize to valid code point boundaries
+ *   within a small number of code points after an illegal sequence.
+ * - Non-shortest forms are not detected and will result in "spoofing" output.
+ *
+ * For further performance improvement, if srcLength is given (>=0),
+ * then it must be destCapacity>=srcLength.
+ *
+ * There is no inverse u_strToUTF8Lenient() function because there is practically
+ * no performance gain from not checking that a UTF-16 string is well-formed.
+ *
+ * @param dest          A buffer for the result string. The result will be zero-terminated if
+ *                      the buffer is large enough.
+ * @param destCapacity  The size of the buffer (number of UChars). If it is 0, then
+ *                      dest may be NULL and the function will only return the length of the 
+ *                      result without writing any of the result string (pre-flighting).
+ *                      Unlike for other ICU functions, if srcLength>=0 then it
+ *                      must be destCapacity>=srcLength.
+ * @param pDestLength   A pointer to receive the number of units written to the destination. If 
+ *                      pDestLength!=NULL then *pDestLength is always set to the 
+ *                      number of output units corresponding to the transformation of 
+ *                      all the input units, even in case of a buffer overflow.
+ *                      Unlike for other ICU functions, if srcLength>=0 but
+ *                      destCapacity<srcLength, then *pDestLength will be set to srcLength
+ *                      (and U_BUFFER_OVERFLOW_ERROR will be set)
+ *                      regardless of the actual result length.
+ * @param src           The original source string
+ * @param srcLength     The length of the original string. If -1, then src must be zero-terminated.
+ * @param pErrorCode    Pointer to a standard ICU error code. Its input value must
+ *                      pass the U_SUCCESS() test, or else the function returns
+ *                      immediately. Check for U_FAILURE() on output or use with
+ *                      function chaining. (See User Guide for details.)
+ * @return The pointer to destination buffer.
+ * @see u_strFromUTF8
+ * @see u_strFromUTF8WithSub
+ * @see u_strToUTF8WithSub
+ * @stable ICU 3.6
+ */
+U_STABLE UChar * U_EXPORT2
+u_strFromUTF8Lenient(UChar *dest,
+                     int32_t destCapacity,
+                     int32_t *pDestLength,
+                     const char *src,
+                     int32_t srcLength,
+                     UErrorCode *pErrorCode);
+
+/**
+ * Convert a UTF-16 string to UTF-32.
+ * If the input string is not well-formed, then the U_INVALID_CHAR_FOUND error code is set.
+ *
+ * @param dest          A buffer for the result string. The result will be zero-terminated if
+ *                      the buffer is large enough.
+ * @param destCapacity  The size of the buffer (number of UChar32s). If it is 0, then
+ *                      dest may be NULL and the function will only return the length of the 
+ *                      result without writing any of the result string (pre-flighting).
+ * @param pDestLength   A pointer to receive the number of units written to the destination. If 
+ *                      pDestLength!=NULL then *pDestLength is always set to the 
+ *                      number of output units corresponding to the transformation of 
+ *                      all the input units, even in case of a buffer overflow.
+ * @param src           The original source string
+ * @param srcLength     The length of the original string. If -1, then src must be zero-terminated.
+ * @param pErrorCode    Must be a valid pointer to an error code value,
+ *                      which must not indicate a failure before the function call.
+ * @return The pointer to destination buffer.
+ * @see u_strToUTF32WithSub
+ * @see u_strFromUTF32
+ * @stable ICU 2.0
+ */
+U_STABLE UChar32* U_EXPORT2 
+u_strToUTF32(UChar32 *dest, 
+             int32_t  destCapacity,
+             int32_t  *pDestLength,
+             const UChar *src, 
+             int32_t  srcLength,
+             UErrorCode *pErrorCode);
+
+/**
+ * Convert a UTF-32 string to UTF-16.
+ * If the input string is not well-formed, then the U_INVALID_CHAR_FOUND error code is set.
+ *
+ * @param dest          A buffer for the result string. The result will be zero-terminated if
+ *                      the buffer is large enough.
+ * @param destCapacity  The size of the buffer (number of UChars). If it is 0, then
+ *                      dest may be NULL and the function will only return the length of the 
+ *                      result without writing any of the result string (pre-flighting).
+ * @param pDestLength   A pointer to receive the number of units written to the destination. If 
+ *                      pDestLength!=NULL then *pDestLength is always set to the 
+ *                      number of output units corresponding to the transformation of 
+ *                      all the input units, even in case of a buffer overflow.
+ * @param src           The original source string
+ * @param srcLength     The length of the original string. If -1, then src must be zero-terminated.
+ * @param pErrorCode    Must be a valid pointer to an error code value,
+ *                      which must not indicate a failure before the function call.
+ * @return The pointer to destination buffer.
+ * @see u_strFromUTF32WithSub
+ * @see u_strToUTF32
+ * @stable ICU 2.0
+ */
+U_STABLE UChar* U_EXPORT2 
+u_strFromUTF32(UChar   *dest,
+               int32_t destCapacity, 
+               int32_t *pDestLength,
+               const UChar32 *src,
+               int32_t srcLength,
+               UErrorCode *pErrorCode);
+
+/**
+ * Convert a UTF-16 string to UTF-32.
+ *
+ * Same as u_strToUTF32() except for the additional subchar which is output for
+ * illegal input sequences, instead of stopping with the U_INVALID_CHAR_FOUND error code.
+ * With subchar==U_SENTINEL, this function behaves exactly like u_strToUTF32().
+ *
+ * @param dest          A buffer for the result string. The result will be zero-terminated if
+ *                      the buffer is large enough.
+ * @param destCapacity  The size of the buffer (number of UChar32s). If it is 0, then
+ *                      dest may be NULL and the function will only return the length of the
+ *                      result without writing any of the result string (pre-flighting).
+ * @param pDestLength   A pointer to receive the number of units written to the destination. If
+ *                      pDestLength!=NULL then *pDestLength is always set to the
+ *                      number of output units corresponding to the transformation of
+ *                      all the input units, even in case of a buffer overflow.
+ * @param src           The original source string
+ * @param srcLength     The length of the original string. If -1, then src must be zero-terminated.
+ * @param subchar       The substitution character to use in place of an illegal input sequence,
+ *                      or U_SENTINEL if the function is to return with U_INVALID_CHAR_FOUND instead.
+ *                      A substitution character can be any valid Unicode code point (up to U+10FFFF)
+ *                      except for surrogate code points (U+D800..U+DFFF).
+ *                      The recommended value is U+FFFD "REPLACEMENT CHARACTER".
+ * @param pNumSubstitutions Output parameter receiving the number of substitutions if subchar>=0.
+ *                      Set to 0 if no substitutions occur or subchar<0.
+ *                      pNumSubstitutions can be NULL.
+ * @param pErrorCode    Pointer to a standard ICU error code. Its input value must
+ *                      pass the U_SUCCESS() test, or else the function returns
+ *                      immediately. Check for U_FAILURE() on output or use with
+ *                      function chaining. (See User Guide for details.)
+ * @return The pointer to destination buffer.
+ * @see u_strToUTF32
+ * @see u_strFromUTF32WithSub
+ * @stable ICU 4.2
+ */
+U_STABLE UChar32* U_EXPORT2
+u_strToUTF32WithSub(UChar32 *dest,
+             int32_t destCapacity,
+             int32_t *pDestLength,
+             const UChar *src,
+             int32_t srcLength,
+             UChar32 subchar, int32_t *pNumSubstitutions,
+             UErrorCode *pErrorCode);
+
+/**
+ * Convert a UTF-32 string to UTF-16.
+ *
+ * Same as u_strFromUTF32() except for the additional subchar which is output for
+ * illegal input sequences, instead of stopping with the U_INVALID_CHAR_FOUND error code.
+ * With subchar==U_SENTINEL, this function behaves exactly like u_strFromUTF32().
+ *
+ * @param dest          A buffer for the result string. The result will be zero-terminated if
+ *                      the buffer is large enough.
+ * @param destCapacity  The size of the buffer (number of UChars). If it is 0, then
+ *                      dest may be NULL and the function will only return the length of the
+ *                      result without writing any of the result string (pre-flighting).
+ * @param pDestLength   A pointer to receive the number of units written to the destination. If
+ *                      pDestLength!=NULL then *pDestLength is always set to the
+ *                      number of output units corresponding to the transformation of
+ *                      all the input units, even in case of a buffer overflow.
+ * @param src           The original source string
+ * @param srcLength     The length of the original string. If -1, then src must be zero-terminated.
+ * @param subchar       The substitution character to use in place of an illegal input sequence,
+ *                      or U_SENTINEL if the function is to return with U_INVALID_CHAR_FOUND instead.
+ *                      A substitution character can be any valid Unicode code point (up to U+10FFFF)
+ *                      except for surrogate code points (U+D800..U+DFFF).
+ *                      The recommended value is U+FFFD "REPLACEMENT CHARACTER".
+ * @param pNumSubstitutions Output parameter receiving the number of substitutions if subchar>=0.
+ *                      Set to 0 if no substitutions occur or subchar<0.
+ *                      pNumSubstitutions can be NULL.
+ * @param pErrorCode    Pointer to a standard ICU error code. Its input value must
+ *                      pass the U_SUCCESS() test, or else the function returns
+ *                      immediately. Check for U_FAILURE() on output or use with
+ *                      function chaining. (See User Guide for details.)
+ * @return The pointer to destination buffer.
+ * @see u_strFromUTF32
+ * @see u_strToUTF32WithSub
+ * @stable ICU 4.2
+ */
+U_STABLE UChar* U_EXPORT2
+u_strFromUTF32WithSub(UChar *dest,
+               int32_t destCapacity,
+               int32_t *pDestLength,
+               const UChar32 *src,
+               int32_t srcLength,
+               UChar32 subchar, int32_t *pNumSubstitutions,
+               UErrorCode *pErrorCode);
+
+/**
+ * Convert a 16-bit Unicode string to Java Modified UTF-8.
+ * See http://java.sun.com/javase/6/docs/api/java/io/DataInput.html#modified-utf-8
+ *
+ * This function behaves according to the documentation for Java DataOutput.writeUTF()
+ * except that it does not encode the output length in the destination buffer
+ * and does not have an output length restriction.
+ * See http://java.sun.com/javase/6/docs/api/java/io/DataOutput.html#writeUTF(java.lang.String)
+ *
+ * The input string need not be well-formed UTF-16.
+ * (Therefore there is no subchar parameter.)
+ *
+ * @param dest          A buffer for the result string. The result will be zero-terminated if
+ *                      the buffer is large enough.
+ * @param destCapacity  The size of the buffer (number of chars). If it is 0, then
+ *                      dest may be NULL and the function will only return the length of the 
+ *                      result without writing any of the result string (pre-flighting).
+ * @param pDestLength   A pointer to receive the number of units written to the destination. If 
+ *                      pDestLength!=NULL then *pDestLength is always set to the 
+ *                      number of output units corresponding to the transformation of 
+ *                      all the input units, even in case of a buffer overflow.
+ * @param src           The original source string
+ * @param srcLength     The length of the original string. If -1, then src must be zero-terminated.
+ * @param pErrorCode    Pointer to a standard ICU error code. Its input value must
+ *                      pass the U_SUCCESS() test, or else the function returns
+ *                      immediately. Check for U_FAILURE() on output or use with
+ *                      function chaining. (See User Guide for details.)
+ * @return The pointer to destination buffer.
+ * @stable ICU 4.4
+ * @see u_strToUTF8WithSub
+ * @see u_strFromJavaModifiedUTF8WithSub
+ */
+U_STABLE char* U_EXPORT2 
+u_strToJavaModifiedUTF8(
+        char *dest,
+        int32_t destCapacity,
+        int32_t *pDestLength,
+        const UChar *src, 
+        int32_t srcLength,
+        UErrorCode *pErrorCode);
+
+/**
+ * Convert a Java Modified UTF-8 string to a 16-bit Unicode string.
+ * If the input string is not well-formed and no substitution char is specified, 
+ * then the U_INVALID_CHAR_FOUND error code is set.
+ *
+ * This function behaves according to the documentation for Java DataInput.readUTF()
+ * except that it takes a length parameter rather than
+ * interpreting the first two input bytes as the length.
+ * See http://java.sun.com/javase/6/docs/api/java/io/DataInput.html#readUTF()
+ *
+ * The output string may not be well-formed UTF-16.
+ *
+ * @param dest          A buffer for the result string. The result will be zero-terminated if
+ *                      the buffer is large enough.
+ * @param destCapacity  The size of the buffer (number of UChars). If it is 0, then
+ *                      dest may be NULL and the function will only return the length of the 
+ *                      result without writing any of the result string (pre-flighting).
+ * @param pDestLength   A pointer to receive the number of units written to the destination. If 
+ *                      pDestLength!=NULL then *pDestLength is always set to the 
+ *                      number of output units corresponding to the transformation of 
+ *                      all the input units, even in case of a buffer overflow.
+ * @param src           The original source string
+ * @param srcLength     The length of the original string. If -1, then src must be zero-terminated.
+ * @param subchar       The substitution character to use in place of an illegal input sequence,
+ *                      or U_SENTINEL if the function is to return with U_INVALID_CHAR_FOUND instead.
+ *                      A substitution character can be any valid Unicode code point (up to U+10FFFF)
+ *                      except for surrogate code points (U+D800..U+DFFF).
+ *                      The recommended value is U+FFFD "REPLACEMENT CHARACTER".
+ * @param pNumSubstitutions Output parameter receiving the number of substitutions if subchar>=0.
+ *                      Set to 0 if no substitutions occur or subchar<0.
+ *                      pNumSubstitutions can be NULL.
+ * @param pErrorCode    Pointer to a standard ICU error code. Its input value must
+ *                      pass the U_SUCCESS() test, or else the function returns
+ *                      immediately. Check for U_FAILURE() on output or use with
+ *                      function chaining. (See User Guide for details.)
+ * @return The pointer to destination buffer.
+ * @see u_strFromUTF8WithSub
+ * @see u_strFromUTF8Lenient
+ * @see u_strToJavaModifiedUTF8
+ * @stable ICU 4.4
+ */
+U_STABLE UChar* U_EXPORT2
+u_strFromJavaModifiedUTF8WithSub(
+        UChar *dest,
+        int32_t destCapacity,
+        int32_t *pDestLength,
+        const char *src,
+        int32_t srcLength,
+        UChar32 subchar, int32_t *pNumSubstitutions,
+        UErrorCode *pErrorCode);
+
+#endif
diff --git a/vendor/icu/include/unicode/utf.h b/vendor/icu/include/unicode/utf.h
new file mode 100644
index 0000000000..9b85c7620c
--- /dev/null
+++ b/vendor/icu/include/unicode/utf.h
@@ -0,0 +1,225 @@
+// © 2016 and later: Unicode, Inc. and others.
+// License & terms of use: http://www.unicode.org/copyright.html
+/*
+*******************************************************************************
+*
+*   Copyright (C) 1999-2011, International Business Machines
+*   Corporation and others.  All Rights Reserved.
+*
+*******************************************************************************
+*   file name:  utf.h
+*   encoding:   UTF-8
+*   tab size:   8 (not used)
+*   indentation:4
+*
+*   created on: 1999sep09
+*   created by: Markus W. Scherer
+*/
+
+/**
+ * \file
+ * \brief C API: Code point macros
+ *
+ * This file defines macros for checking whether a code point is
+ * a surrogate or a non-character etc.
+ *
+ * If U_NO_DEFAULT_INCLUDE_UTF_HEADERS is 0 then utf.h is included by utypes.h
+ * and itself includes utf8.h and utf16.h after some
+ * common definitions.
+ * If U_NO_DEFAULT_INCLUDE_UTF_HEADERS is 1 then each of these headers must be
+ * included explicitly if their definitions are used.
+ *
+ * utf8.h and utf16.h define macros for efficiently getting code points
+ * in and out of UTF-8/16 strings.
+ * utf16.h macros have "U16_" prefixes.
+ * utf8.h defines similar macros with "U8_" prefixes for UTF-8 string handling.
+ *
+ * ICU mostly processes 16-bit Unicode strings.
+ * Most of the time, such strings are well-formed UTF-16.
+ * Single, unpaired surrogates must be handled as well, and are treated in ICU
+ * like regular code points where possible.
+ * (Pairs of surrogate code points are indistinguishable from supplementary
+ * code points encoded as pairs of supplementary code units.)
+ *
+ * In fact, almost all Unicode code points in normal text (>99%)
+ * are on the BMP (<=U+ffff) and even <=U+d7ff.
+ * ICU functions handle supplementary code points (U+10000..U+10ffff)
+ * but are optimized for the much more frequently occurring BMP code points.
+ *
+ * umachine.h defines UChar to be an unsigned 16-bit integer.
+ * Since ICU 59, ICU uses char16_t in C++, UChar only in C,
+ * and defines UChar=char16_t by default. See the UChar API docs for details.
+ *
+ * UChar32 is defined to be a signed 32-bit integer (int32_t), large enough for a 21-bit
+ * Unicode code point (Unicode scalar value, 0..0x10ffff) and U_SENTINEL (-1).
+ * Before ICU 2.4, the definition of UChar32 was similarly platform-dependent as
+ * the definition of UChar. For details see the documentation for UChar32 itself.
+ *
+ * utf.h defines a small number of C macros for single Unicode code points.
+ * These are simple checks for surrogates and non-characters.
+ * For actual Unicode character properties see uchar.h.
+ *
+ * By default, string operations must be done with error checking in case
+ * a string is not well-formed UTF-16 or UTF-8.
+ *
+ * The U16_ macros detect if a surrogate code unit is unpaired
+ * (lead unit without trail unit or vice versa) and just return the unit itself
+ * as the code point.
+ *
+ * The U8_ macros detect illegal byte sequences and return a negative value.
+ * Starting with ICU 60, the observable length of a single illegal byte sequence
+ * skipped by one of these macros follows the Unicode 6+ recommendation
+ * which is consistent with the W3C Encoding Standard.
+ *
+ * There are ..._OR_FFFD versions of both U16_ and U8_ macros
+ * that return U+FFFD for illegal code unit sequences.
+ *
+ * The regular "safe" macros require that the initial, passed-in string index
+ * is within bounds. They only check the index when they read more than one
+ * code unit. This is usually done with code similar to the following loop:
+ * <pre>while(i<length) {
+ *   U16_NEXT(s, i, length, c);
+ *   // use c
+ * }</pre>
+ *
+ * When it is safe to assume that text is well-formed UTF-16
+ * (does not contain single, unpaired surrogates), then one can use
+ * U16_..._UNSAFE macros.
+ * These do not check for proper code unit sequences or truncated text and may
+ * yield wrong results or even cause a crash if they are used with "malformed"
+ * text.
+ * In practice, U16_..._UNSAFE macros will produce slightly less code but
+ * should not be faster because the processing is only different when a
+ * surrogate code unit is detected, which will be rare.
+ *
+ * Similarly for UTF-8, there are "safe" macros without a suffix,
+ * and U8_..._UNSAFE versions.
+ * The performance differences are much larger here because UTF-8 provides so
+ * many opportunities for malformed sequences.
+ * The unsafe UTF-8 macros are entirely implemented inside the macro definitions
+ * and are fast, while the safe UTF-8 macros call functions for some complicated cases.
+ *
+ * Unlike with UTF-16, malformed sequences cannot be expressed with distinct
+ * code point values (0..U+10ffff). They are indicated with negative values instead.
+ *
+ * For more information see the ICU User Guide Strings chapter
+ * (http://userguide.icu-project.org/strings).
+ *
+ * <em>Usage:</em>
+ * ICU coding guidelines for if() statements should be followed when using these macros.
+ * Compound statements (curly braces {}) must be used  for if-else-while... 
+ * bodies and all macro statements should be terminated with semicolon.
+ *
+ * @stable ICU 2.4
+ */
+
+#ifndef __UTF_H__
+#define __UTF_H__
+
+#include <unicode/umachine.h>
+/* include the utfXX.h after the following definitions */
+
+/* single-code point definitions -------------------------------------------- */
+
+/**
+ * Is this code point a Unicode noncharacter?
+ * @param c 32-bit code point
+ * @return TRUE or FALSE
+ * @stable ICU 2.4
+ */
+#define U_IS_UNICODE_NONCHAR(c) \
+    ((c)>=0xfdd0 && \
+     ((c)<=0xfdef || ((c)&0xfffe)==0xfffe) && (c)<=0x10ffff)
+
+/**
+ * Is c a Unicode code point value (0..U+10ffff)
+ * that can be assigned a character?
+ *
+ * Code points that are not characters include:
+ * - single surrogate code points (U+d800..U+dfff, 2048 code points)
+ * - the last two code points on each plane (U+__fffe and U+__ffff, 34 code points)
+ * - U+fdd0..U+fdef (new with Unicode 3.1, 32 code points)
+ * - the highest Unicode code point value is U+10ffff
+ *
+ * This means that all code points below U+d800 are character code points,
+ * and that boundary is tested first for performance.
+ *
+ * @param c 32-bit code point
+ * @return TRUE or FALSE
+ * @stable ICU 2.4
+ */
+#define U_IS_UNICODE_CHAR(c) \
+    ((uint32_t)(c)<0xd800 || \
+        (0xdfff<(c) && (c)<=0x10ffff && !U_IS_UNICODE_NONCHAR(c)))
+
+/**
+ * Is this code point a BMP code point (U+0000..U+ffff)?
+ * @param c 32-bit code point
+ * @return TRUE or FALSE
+ * @stable ICU 2.8
+ */
+#define U_IS_BMP(c) ((uint32_t)(c)<=0xffff)
+
+/**
+ * Is this code point a supplementary code point (U+10000..U+10ffff)?
+ * @param c 32-bit code point
+ * @return TRUE or FALSE
+ * @stable ICU 2.8
+ */
+#define U_IS_SUPPLEMENTARY(c) ((uint32_t)((c)-0x10000)<=0xfffff)
+ 
+/**
+ * Is this code point a lead surrogate (U+d800..U+dbff)?
+ * @param c 32-bit code point
+ * @return TRUE or FALSE
+ * @stable ICU 2.4
+ */
+#define U_IS_LEAD(c) (((c)&0xfffffc00)==0xd800)
+
+/**
+ * Is this code point a trail surrogate (U+dc00..U+dfff)?
+ * @param c 32-bit code point
+ * @return TRUE or FALSE
+ * @stable ICU 2.4
+ */
+#define U_IS_TRAIL(c) (((c)&0xfffffc00)==0xdc00)
+
+/**
+ * Is this code point a surrogate (U+d800..U+dfff)?
+ * @param c 32-bit code point
+ * @return TRUE or FALSE
+ * @stable ICU 2.4
+ */
+#define U_IS_SURROGATE(c) (((c)&0xfffff800)==0xd800)
+
+/**
+ * Assuming c is a surrogate code point (U_IS_SURROGATE(c)),
+ * is it a lead surrogate?
+ * @param c 32-bit code point
+ * @return TRUE or FALSE
+ * @stable ICU 2.4
+ */
+#define U_IS_SURROGATE_LEAD(c) (((c)&0x400)==0)
+
+/**
+ * Assuming c is a surrogate code point (U_IS_SURROGATE(c)),
+ * is it a trail surrogate?
+ * @param c 32-bit code point
+ * @return TRUE or FALSE
+ * @stable ICU 4.2
+ */
+#define U_IS_SURROGATE_TRAIL(c) (((c)&0x400)!=0)
+
+/* include the utfXX.h ------------------------------------------------------ */
+
+#if !U_NO_DEFAULT_INCLUDE_UTF_HEADERS
+
+#include <unicode/utf8.h>
+#include <unicode/utf16.h>
+
+/* utf_old.h contains deprecated, pre-ICU 2.4 definitions */
+#include <unicode/utf_old.h>
+
+#endif  /* !U_NO_DEFAULT_INCLUDE_UTF_HEADERS */
+
+#endif  /* __UTF_H__ */
diff --git a/vendor/icu/include/unicode/utf16.h b/vendor/icu/include/unicode/utf16.h
new file mode 100644
index 0000000000..ffdf584ec6
--- /dev/null
+++ b/vendor/icu/include/unicode/utf16.h
@@ -0,0 +1,745 @@
+// © 2016 and later: Unicode, Inc. and others.
+// License & terms of use: http://www.unicode.org/copyright.html
+/*
+*******************************************************************************
+*
+*   Copyright (C) 1999-2012, International Business Machines
+*   Corporation and others.  All Rights Reserved.
+*
+*******************************************************************************
+*   file name:  utf16.h
+*   encoding:   UTF-8
+*   tab size:   8 (not used)
+*   indentation:4
+*
+*   created on: 1999sep09
+*   created by: Markus W. Scherer
+*/
+
+/**
+ * \file
+ * \brief C API: 16-bit Unicode handling macros
+ * 
+ * This file defines macros to deal with 16-bit Unicode (UTF-16) code units and strings.
+ *
+ * For more information see utf.h and the ICU User Guide Strings chapter
+ * (http://userguide.icu-project.org/strings).
+ *
+ * <em>Usage:</em>
+ * ICU coding guidelines for if() statements should be followed when using these macros.
+ * Compound statements (curly braces {}) must be used  for if-else-while... 
+ * bodies and all macro statements should be terminated with semicolon.
+ */
+
+#ifndef __UTF16_H__
+#define __UTF16_H__
+
+#include <unicode/umachine.h>
+#ifndef __UTF_H__
+#   include "unicode/utf.h"
+#endif
+
+/* single-code point definitions -------------------------------------------- */
+
+/**
+ * Does this code unit alone encode a code point (BMP, not a surrogate)?
+ * @param c 16-bit code unit
+ * @return TRUE or FALSE
+ * @stable ICU 2.4
+ */
+#define U16_IS_SINGLE(c) !U_IS_SURROGATE(c)
+
+/**
+ * Is this code unit a lead surrogate (U+d800..U+dbff)?
+ * @param c 16-bit code unit
+ * @return TRUE or FALSE
+ * @stable ICU 2.4
+ */
+#define U16_IS_LEAD(c) (((c)&0xfffffc00)==0xd800)
+
+/**
+ * Is this code unit a trail surrogate (U+dc00..U+dfff)?
+ * @param c 16-bit code unit
+ * @return TRUE or FALSE
+ * @stable ICU 2.4
+ */
+#define U16_IS_TRAIL(c) (((c)&0xfffffc00)==0xdc00)
+
+/**
+ * Is this code unit a surrogate (U+d800..U+dfff)?
+ * @param c 16-bit code unit
+ * @return TRUE or FALSE
+ * @stable ICU 2.4
+ */
+#define U16_IS_SURROGATE(c) U_IS_SURROGATE(c)
+
+/**
+ * Assuming c is a surrogate code point (U16_IS_SURROGATE(c)),
+ * is it a lead surrogate?
+ * @param c 16-bit code unit
+ * @return TRUE or FALSE
+ * @stable ICU 2.4
+ */
+#define U16_IS_SURROGATE_LEAD(c) (((c)&0x400)==0)
+
+/**
+ * Assuming c is a surrogate code point (U16_IS_SURROGATE(c)),
+ * is it a trail surrogate?
+ * @param c 16-bit code unit
+ * @return TRUE or FALSE
+ * @stable ICU 4.2
+ */
+#define U16_IS_SURROGATE_TRAIL(c) (((c)&0x400)!=0)
+
+/**
+ * Helper constant for U16_GET_SUPPLEMENTARY.
+ * @internal
+ */
+#define U16_SURROGATE_OFFSET ((0xd800<<10UL)+0xdc00-0x10000)
+
+/**
+ * Get a supplementary code point value (U+10000..U+10ffff)
+ * from its lead and trail surrogates.
+ * The result is undefined if the input values are not
+ * lead and trail surrogates.
+ *
+ * @param lead lead surrogate (U+d800..U+dbff)
+ * @param trail trail surrogate (U+dc00..U+dfff)
+ * @return supplementary code point (U+10000..U+10ffff)
+ * @stable ICU 2.4
+ */
+#define U16_GET_SUPPLEMENTARY(lead, trail) \
+    (((UChar32)(lead)<<10UL)+(UChar32)(trail)-U16_SURROGATE_OFFSET)
+
+
+/**
+ * Get the lead surrogate (0xd800..0xdbff) for a
+ * supplementary code point (0x10000..0x10ffff).
+ * @param supplementary 32-bit code point (U+10000..U+10ffff)
+ * @return lead surrogate (U+d800..U+dbff) for supplementary
+ * @stable ICU 2.4
+ */
+#define U16_LEAD(supplementary) (UChar)(((supplementary)>>10)+0xd7c0)
+
+/**
+ * Get the trail surrogate (0xdc00..0xdfff) for a
+ * supplementary code point (0x10000..0x10ffff).
+ * @param supplementary 32-bit code point (U+10000..U+10ffff)
+ * @return trail surrogate (U+dc00..U+dfff) for supplementary
+ * @stable ICU 2.4
+ */
+#define U16_TRAIL(supplementary) (UChar)(((supplementary)&0x3ff)|0xdc00)
+
+/**
+ * How many 16-bit code units are used to encode this Unicode code point? (1 or 2)
+ * The result is not defined if c is not a Unicode code point (U+0000..U+10ffff).
+ * @param c 32-bit code point
+ * @return 1 or 2
+ * @stable ICU 2.4
+ */
+#define U16_LENGTH(c) ((uint32_t)(c)<=0xffff ? 1 : 2)
+
+/**
+ * The maximum number of 16-bit code units per Unicode code point (U+0000..U+10ffff).
+ * @return 2
+ * @stable ICU 2.4
+ */
+#define U16_MAX_LENGTH 2
+
+/**
+ * Get a code point from a string at a random-access offset,
+ * without changing the offset.
+ * "Unsafe" macro, assumes well-formed UTF-16.
+ *
+ * The offset may point to either the lead or trail surrogate unit
+ * for a supplementary code point, in which case the macro will read
+ * the adjacent matching surrogate as well.
+ * The result is undefined if the offset points to a single, unpaired surrogate.
+ * Iteration through a string is more efficient with U16_NEXT_UNSAFE or U16_NEXT.
+ *
+ * @param s const UChar * string
+ * @param i string offset
+ * @param c output UChar32 variable
+ * @see U16_GET
+ * @stable ICU 2.4
+ */
+#define U16_GET_UNSAFE(s, i, c) { \
+    (c)=(s)[i]; \
+    if(U16_IS_SURROGATE(c)) { \
+        if(U16_IS_SURROGATE_LEAD(c)) { \
+            (c)=U16_GET_SUPPLEMENTARY((c), (s)[(i)+1]); \
+        } else { \
+            (c)=U16_GET_SUPPLEMENTARY((s)[(i)-1], (c)); \
+        } \
+    } \
+}
+
+/**
+ * Get a code point from a string at a random-access offset,
+ * without changing the offset.
+ * "Safe" macro, handles unpaired surrogates and checks for string boundaries.
+ *
+ * The offset may point to either the lead or trail surrogate unit
+ * for a supplementary code point, in which case the macro will read
+ * the adjacent matching surrogate as well.
+ *
+ * The length can be negative for a NUL-terminated string.
+ *
+ * If the offset points to a single, unpaired surrogate, then
+ * c is set to that unpaired surrogate.
+ * Iteration through a string is more efficient with U16_NEXT_UNSAFE or U16_NEXT.
+ *
+ * @param s const UChar * string
+ * @param start starting string offset (usually 0)
+ * @param i string offset, must be start<=i<length
+ * @param length string length
+ * @param c output UChar32 variable
+ * @see U16_GET_UNSAFE
+ * @stable ICU 2.4
+ */
+#define U16_GET(s, start, i, length, c) { \
+    (c)=(s)[i]; \
+    if(U16_IS_SURROGATE(c)) { \
+        uint16_t __c2; \
+        if(U16_IS_SURROGATE_LEAD(c)) { \
+            if((i)+1!=(length) && U16_IS_TRAIL(__c2=(s)[(i)+1])) { \
+                (c)=U16_GET_SUPPLEMENTARY((c), __c2); \
+            } \
+        } else { \
+            if((i)>(start) && U16_IS_LEAD(__c2=(s)[(i)-1])) { \
+                (c)=U16_GET_SUPPLEMENTARY(__c2, (c)); \
+            } \
+        } \
+    } \
+}
+
+#ifndef U_HIDE_DRAFT_API
+
+/**
+ * Get a code point from a string at a random-access offset,
+ * without changing the offset.
+ * "Safe" macro, handles unpaired surrogates and checks for string boundaries.
+ *
+ * The offset may point to either the lead or trail surrogate unit
+ * for a supplementary code point, in which case the macro will read
+ * the adjacent matching surrogate as well.
+ *
+ * The length can be negative for a NUL-terminated string.
+ *
+ * If the offset points to a single, unpaired surrogate, then
+ * c is set to U+FFFD.
+ * Iteration through a string is more efficient with U16_NEXT_UNSAFE or U16_NEXT_OR_FFFD.
+ *
+ * @param s const UChar * string
+ * @param start starting string offset (usually 0)
+ * @param i string offset, must be start<=i<length
+ * @param length string length
+ * @param c output UChar32 variable
+ * @see U16_GET_UNSAFE
+ * @draft ICU 60
+ */
+#define U16_GET_OR_FFFD(s, start, i, length, c) { \
+    (c)=(s)[i]; \
+    if(U16_IS_SURROGATE(c)) { \
+        uint16_t __c2; \
+        if(U16_IS_SURROGATE_LEAD(c)) { \
+            if((i)+1!=(length) && U16_IS_TRAIL(__c2=(s)[(i)+1])) { \
+                (c)=U16_GET_SUPPLEMENTARY((c), __c2); \
+            } else { \
+                (c)=0xfffd; \
+            } \
+        } else { \
+            if((i)>(start) && U16_IS_LEAD(__c2=(s)[(i)-1])) { \
+                (c)=U16_GET_SUPPLEMENTARY(__c2, (c)); \
+            } else { \
+                (c)=0xfffd; \
+            } \
+        } \
+    } \
+}
+
+#endif  // U_HIDE_DRAFT_API
+
+/* definitions with forward iteration --------------------------------------- */
+
+/**
+ * Get a code point from a string at a code point boundary offset,
+ * and advance the offset to the next code point boundary.
+ * (Post-incrementing forward iteration.)
+ * "Unsafe" macro, assumes well-formed UTF-16.
+ *
+ * The offset may point to the lead surrogate unit
+ * for a supplementary code point, in which case the macro will read
+ * the following trail surrogate as well.
+ * If the offset points to a trail surrogate, then that itself
+ * will be returned as the code point.
+ * The result is undefined if the offset points to a single, unpaired lead surrogate.
+ *
+ * @param s const UChar * string
+ * @param i string offset
+ * @param c output UChar32 variable
+ * @see U16_NEXT
+ * @stable ICU 2.4
+ */
+#define U16_NEXT_UNSAFE(s, i, c) { \
+    (c)=(s)[(i)++]; \
+    if(U16_IS_LEAD(c)) { \
+        (c)=U16_GET_SUPPLEMENTARY((c), (s)[(i)++]); \
+    } \
+}
+
+/**
+ * Get a code point from a string at a code point boundary offset,
+ * and advance the offset to the next code point boundary.
+ * (Post-incrementing forward iteration.)
+ * "Safe" macro, handles unpaired surrogates and checks for string boundaries.
+ *
+ * The length can be negative for a NUL-terminated string.
+ *
+ * The offset may point to the lead surrogate unit
+ * for a supplementary code point, in which case the macro will read
+ * the following trail surrogate as well.
+ * If the offset points to a trail surrogate or
+ * to a single, unpaired lead surrogate, then c is set to that unpaired surrogate.
+ *
+ * @param s const UChar * string
+ * @param i string offset, must be i<length
+ * @param length string length
+ * @param c output UChar32 variable
+ * @see U16_NEXT_UNSAFE
+ * @stable ICU 2.4
+ */
+#define U16_NEXT(s, i, length, c) { \
+    (c)=(s)[(i)++]; \
+    if(U16_IS_LEAD(c)) { \
+        uint16_t __c2; \
+        if((i)!=(length) && U16_IS_TRAIL(__c2=(s)[(i)])) { \
+            ++(i); \
+            (c)=U16_GET_SUPPLEMENTARY((c), __c2); \
+        } \
+    } \
+}
+
+#ifndef U_HIDE_DRAFT_API
+
+/**
+ * Get a code point from a string at a code point boundary offset,
+ * and advance the offset to the next code point boundary.
+ * (Post-incrementing forward iteration.)
+ * "Safe" macro, handles unpaired surrogates and checks for string boundaries.
+ *
+ * The length can be negative for a NUL-terminated string.
+ *
+ * The offset may point to the lead surrogate unit
+ * for a supplementary code point, in which case the macro will read
+ * the following trail surrogate as well.
+ * If the offset points to a trail surrogate or
+ * to a single, unpaired lead surrogate, then c is set to U+FFFD.
+ *
+ * @param s const UChar * string
+ * @param i string offset, must be i<length
+ * @param length string length
+ * @param c output UChar32 variable
+ * @see U16_NEXT_UNSAFE
+ * @draft ICU 60
+ */
+#define U16_NEXT_OR_FFFD(s, i, length, c) { \
+    (c)=(s)[(i)++]; \
+    if(U16_IS_SURROGATE(c)) { \
+        uint16_t __c2; \
+        if(U16_IS_SURROGATE_LEAD(c) && (i)!=(length) && U16_IS_TRAIL(__c2=(s)[(i)])) { \
+            ++(i); \
+            (c)=U16_GET_SUPPLEMENTARY((c), __c2); \
+        } else { \
+            (c)=0xfffd; \
+        } \
+    } \
+}
+
+#endif  // U_HIDE_DRAFT_API
+
+/**
+ * Append a code point to a string, overwriting 1 or 2 code units.
+ * The offset points to the current end of the string contents
+ * and is advanced (post-increment).
+ * "Unsafe" macro, assumes a valid code point and sufficient space in the string.
+ * Otherwise, the result is undefined.
+ *
+ * @param s const UChar * string buffer
+ * @param i string offset
+ * @param c code point to append
+ * @see U16_APPEND
+ * @stable ICU 2.4
+ */
+#define U16_APPEND_UNSAFE(s, i, c) { \
+    if((uint32_t)(c)<=0xffff) { \
+        (s)[(i)++]=(uint16_t)(c); \
+    } else { \
+        (s)[(i)++]=(uint16_t)(((c)>>10)+0xd7c0); \
+        (s)[(i)++]=(uint16_t)(((c)&0x3ff)|0xdc00); \
+    } \
+}
+
+/**
+ * Append a code point to a string, overwriting 1 or 2 code units.
+ * The offset points to the current end of the string contents
+ * and is advanced (post-increment).
+ * "Safe" macro, checks for a valid code point.
+ * If a surrogate pair is written, checks for sufficient space in the string.
+ * If the code point is not valid or a trail surrogate does not fit,
+ * then isError is set to TRUE.
+ *
+ * @param s const UChar * string buffer
+ * @param i string offset, must be i<capacity
+ * @param capacity size of the string buffer
+ * @param c code point to append
+ * @param isError output UBool set to TRUE if an error occurs, otherwise not modified
+ * @see U16_APPEND_UNSAFE
+ * @stable ICU 2.4
+ */
+#define U16_APPEND(s, i, capacity, c, isError) { \
+    if((uint32_t)(c)<=0xffff) { \
+        (s)[(i)++]=(uint16_t)(c); \
+    } else if((uint32_t)(c)<=0x10ffff && (i)+1<(capacity)) { \
+        (s)[(i)++]=(uint16_t)(((c)>>10)+0xd7c0); \
+        (s)[(i)++]=(uint16_t)(((c)&0x3ff)|0xdc00); \
+    } else /* c>0x10ffff or not enough space */ { \
+        (isError)=TRUE; \
+    } \
+}
+
+/**
+ * Advance the string offset from one code point boundary to the next.
+ * (Post-incrementing iteration.)
+ * "Unsafe" macro, assumes well-formed UTF-16.
+ *
+ * @param s const UChar * string
+ * @param i string offset
+ * @see U16_FWD_1
+ * @stable ICU 2.4
+ */
+#define U16_FWD_1_UNSAFE(s, i) { \
+    if(U16_IS_LEAD((s)[(i)++])) { \
+        ++(i); \
+    } \
+}
+
+/**
+ * Advance the string offset from one code point boundary to the next.
+ * (Post-incrementing iteration.)
+ * "Safe" macro, handles unpaired surrogates and checks for string boundaries.
+ *
+ * The length can be negative for a NUL-terminated string.
+ *
+ * @param s const UChar * string
+ * @param i string offset, must be i<length
+ * @param length string length
+ * @see U16_FWD_1_UNSAFE
+ * @stable ICU 2.4
+ */
+#define U16_FWD_1(s, i, length) { \
+    if(U16_IS_LEAD((s)[(i)++]) && (i)!=(length) && U16_IS_TRAIL((s)[i])) { \
+        ++(i); \
+    } \
+}
+
+/**
+ * Advance the string offset from one code point boundary to the n-th next one,
+ * i.e., move forward by n code points.
+ * (Post-incrementing iteration.)
+ * "Unsafe" macro, assumes well-formed UTF-16.
+ *
+ * @param s const UChar * string
+ * @param i string offset
+ * @param n number of code points to skip
+ * @see U16_FWD_N
+ * @stable ICU 2.4
+ */
+#define U16_FWD_N_UNSAFE(s, i, n) { \
+    int32_t __N=(n); \
+    while(__N>0) { \
+        U16_FWD_1_UNSAFE(s, i); \
+        --__N; \
+    } \
+}
+
+/**
+ * Advance the string offset from one code point boundary to the n-th next one,
+ * i.e., move forward by n code points.
+ * (Post-incrementing iteration.)
+ * "Safe" macro, handles unpaired surrogates and checks for string boundaries.
+ *
+ * The length can be negative for a NUL-terminated string.
+ *
+ * @param s const UChar * string
+ * @param i int32_t string offset, must be i<length
+ * @param length int32_t string length
+ * @param n number of code points to skip
+ * @see U16_FWD_N_UNSAFE
+ * @stable ICU 2.4
+ */
+#define U16_FWD_N(s, i, length, n) { \
+    int32_t __N=(n); \
+    while(__N>0 && ((i)<(length) || ((length)<0 && (s)[i]!=0))) { \
+        U16_FWD_1(s, i, length); \
+        --__N; \
+    } \
+}
+
+/**
+ * Adjust a random-access offset to a code point boundary
+ * at the start of a code point.
+ * If the offset points to the trail surrogate of a surrogate pair,
+ * then the offset is decremented.
+ * Otherwise, it is not modified.
+ * "Unsafe" macro, assumes well-formed UTF-16.
+ *
+ * @param s const UChar * string
+ * @param i string offset
+ * @see U16_SET_CP_START
+ * @stable ICU 2.4
+ */
+#define U16_SET_CP_START_UNSAFE(s, i) { \
+    if(U16_IS_TRAIL((s)[i])) { \
+        --(i); \
+    } \
+}
+
+/**
+ * Adjust a random-access offset to a code point boundary
+ * at the start of a code point.
+ * If the offset points to the trail surrogate of a surrogate pair,
+ * then the offset is decremented.
+ * Otherwise, it is not modified.
+ * "Safe" macro, handles unpaired surrogates and checks for string boundaries.
+ *
+ * @param s const UChar * string
+ * @param start starting string offset (usually 0)
+ * @param i string offset, must be start<=i
+ * @see U16_SET_CP_START_UNSAFE
+ * @stable ICU 2.4
+ */
+#define U16_SET_CP_START(s, start, i) { \
+    if(U16_IS_TRAIL((s)[i]) && (i)>(start) && U16_IS_LEAD((s)[(i)-1])) { \
+        --(i); \
+    } \
+}
+
+/* definitions with backward iteration -------------------------------------- */
+
+/**
+ * Move the string offset from one code point boundary to the previous one
+ * and get the code point between them.
+ * (Pre-decrementing backward iteration.)
+ * "Unsafe" macro, assumes well-formed UTF-16.
+ *
+ * The input offset may be the same as the string length.
+ * If the offset is behind a trail surrogate unit
+ * for a supplementary code point, then the macro will read
+ * the preceding lead surrogate as well.
+ * If the offset is behind a lead surrogate, then that itself
+ * will be returned as the code point.
+ * The result is undefined if the offset is behind a single, unpaired trail surrogate.
+ *
+ * @param s const UChar * string
+ * @param i string offset
+ * @param c output UChar32 variable
+ * @see U16_PREV
+ * @stable ICU 2.4
+ */
+#define U16_PREV_UNSAFE(s, i, c) { \
+    (c)=(s)[--(i)]; \
+    if(U16_IS_TRAIL(c)) { \
+        (c)=U16_GET_SUPPLEMENTARY((s)[--(i)], (c)); \
+    } \
+}
+
+/**
+ * Move the string offset from one code point boundary to the previous one
+ * and get the code point between them.
+ * (Pre-decrementing backward iteration.)
+ * "Safe" macro, handles unpaired surrogates and checks for string boundaries.
+ *
+ * The input offset may be the same as the string length.
+ * If the offset is behind a trail surrogate unit
+ * for a supplementary code point, then the macro will read
+ * the preceding lead surrogate as well.
+ * If the offset is behind a lead surrogate or behind a single, unpaired
+ * trail surrogate, then c is set to that unpaired surrogate.
+ *
+ * @param s const UChar * string
+ * @param start starting string offset (usually 0)
+ * @param i string offset, must be start<i
+ * @param c output UChar32 variable
+ * @see U16_PREV_UNSAFE
+ * @stable ICU 2.4
+ */
+#define U16_PREV(s, start, i, c) { \
+    (c)=(s)[--(i)]; \
+    if(U16_IS_TRAIL(c)) { \
+        uint16_t __c2; \
+        if((i)>(start) && U16_IS_LEAD(__c2=(s)[(i)-1])) { \
+            --(i); \
+            (c)=U16_GET_SUPPLEMENTARY(__c2, (c)); \
+        } \
+    } \
+}
+
+#ifndef U_HIDE_DRAFT_API
+
+/**
+ * Move the string offset from one code point boundary to the previous one
+ * and get the code point between them.
+ * (Pre-decrementing backward iteration.)
+ * "Safe" macro, handles unpaired surrogates and checks for string boundaries.
+ *
+ * The input offset may be the same as the string length.
+ * If the offset is behind a trail surrogate unit
+ * for a supplementary code point, then the macro will read
+ * the preceding lead surrogate as well.
+ * If the offset is behind a lead surrogate or behind a single, unpaired
+ * trail surrogate, then c is set to U+FFFD.
+ *
+ * @param s const UChar * string
+ * @param start starting string offset (usually 0)
+ * @param i string offset, must be start<i
+ * @param c output UChar32 variable
+ * @see U16_PREV_UNSAFE
+ * @draft ICU 60
+ */
+#define U16_PREV_OR_FFFD(s, start, i, c) { \
+    (c)=(s)[--(i)]; \
+    if(U16_IS_SURROGATE(c)) { \
+        uint16_t __c2; \
+        if(U16_IS_SURROGATE_TRAIL(c) && (i)>(start) && U16_IS_LEAD(__c2=(s)[(i)-1])) { \
+            --(i); \
+            (c)=U16_GET_SUPPLEMENTARY(__c2, (c)); \
+        } else { \
+            (c)=0xfffd; \
+        } \
+    } \
+}
+
+#endif  // U_HIDE_DRAFT_API
+
+/**
+ * Move the string offset from one code point boundary to the previous one.
+ * (Pre-decrementing backward iteration.)
+ * The input offset may be the same as the string length.
+ * "Unsafe" macro, assumes well-formed UTF-16.
+ *
+ * @param s const UChar * string
+ * @param i string offset
+ * @see U16_BACK_1
+ * @stable ICU 2.4
+ */
+#define U16_BACK_1_UNSAFE(s, i) { \
+    if(U16_IS_TRAIL((s)[--(i)])) { \
+        --(i); \
+    } \
+}
+
+/**
+ * Move the string offset from one code point boundary to the previous one.
+ * (Pre-decrementing backward iteration.)
+ * The input offset may be the same as the string length.
+ * "Safe" macro, handles unpaired surrogates and checks for string boundaries.
+ *
+ * @param s const UChar * string
+ * @param start starting string offset (usually 0)
+ * @param i string offset, must be start<i
+ * @see U16_BACK_1_UNSAFE
+ * @stable ICU 2.4
+ */
+#define U16_BACK_1(s, start, i) { \
+    if(U16_IS_TRAIL((s)[--(i)]) && (i)>(start) && U16_IS_LEAD((s)[(i)-1])) { \
+        --(i); \
+    } \
+}
+
+/**
+ * Move the string offset from one code point boundary to the n-th one before it,
+ * i.e., move backward by n code points.
+ * (Pre-decrementing backward iteration.)
+ * The input offset may be the same as the string length.
+ * "Unsafe" macro, assumes well-formed UTF-16.
+ *
+ * @param s const UChar * string
+ * @param i string offset
+ * @param n number of code points to skip
+ * @see U16_BACK_N
+ * @stable ICU 2.4
+ */
+#define U16_BACK_N_UNSAFE(s, i, n) { \
+    int32_t __N=(n); \
+    while(__N>0) { \
+        U16_BACK_1_UNSAFE(s, i); \
+        --__N; \
+    } \
+}
+
+/**
+ * Move the string offset from one code point boundary to the n-th one before it,
+ * i.e., move backward by n code points.
+ * (Pre-decrementing backward iteration.)
+ * The input offset may be the same as the string length.
+ * "Safe" macro, handles unpaired surrogates and checks for string boundaries.
+ *
+ * @param s const UChar * string
+ * @param start start of string
+ * @param i string offset, must be start<i
+ * @param n number of code points to skip
+ * @see U16_BACK_N_UNSAFE
+ * @stable ICU 2.4
+ */
+#define U16_BACK_N(s, start, i, n) { \
+    int32_t __N=(n); \
+    while(__N>0 && (i)>(start)) { \
+        U16_BACK_1(s, start, i); \
+        --__N; \
+    } \
+}
+
+/**
+ * Adjust a random-access offset to a code point boundary after a code point.
+ * If the offset is behind the lead surrogate of a surrogate pair,
+ * then the offset is incremented.
+ * Otherwise, it is not modified.
+ * The input offset may be the same as the string length.
+ * "Unsafe" macro, assumes well-formed UTF-16.
+ *
+ * @param s const UChar * string
+ * @param i string offset
+ * @see U16_SET_CP_LIMIT
+ * @stable ICU 2.4
+ */
+#define U16_SET_CP_LIMIT_UNSAFE(s, i) { \
+    if(U16_IS_LEAD((s)[(i)-1])) { \
+        ++(i); \
+    } \
+}
+
+/**
+ * Adjust a random-access offset to a code point boundary after a code point.
+ * If the offset is behind the lead surrogate of a surrogate pair,
+ * then the offset is incremented.
+ * Otherwise, it is not modified.
+ * The input offset may be the same as the string length.
+ * "Safe" macro, handles unpaired surrogates and checks for string boundaries.
+ *
+ * The length can be negative for a NUL-terminated string.
+ *
+ * @param s const UChar * string
+ * @param start int32_t starting string offset (usually 0)
+ * @param i int32_t string offset, start<=i<=length
+ * @param length int32_t string length
+ * @see U16_SET_CP_LIMIT_UNSAFE
+ * @stable ICU 2.4
+ */
+#define U16_SET_CP_LIMIT(s, start, i, length) { \
+    if((start)<(i) && ((i)<(length) || (length)<0) && U16_IS_LEAD((s)[(i)-1]) && U16_IS_TRAIL((s)[i])) { \
+        ++(i); \
+    } \
+}
+
+#endif
diff --git a/vendor/icu/include/unicode/utf8.h b/vendor/icu/include/unicode/utf8.h
new file mode 100644
index 0000000000..20bfc77179
--- /dev/null
+++ b/vendor/icu/include/unicode/utf8.h
@@ -0,0 +1,882 @@
+// © 2016 and later: Unicode, Inc. and others.
+// License & terms of use: http://www.unicode.org/copyright.html
+/*
+*******************************************************************************
+*
+*   Copyright (C) 1999-2015, International Business Machines
+*   Corporation and others.  All Rights Reserved.
+*
+*******************************************************************************
+*   file name:  utf8.h
+*   encoding:   UTF-8
+*   tab size:   8 (not used)
+*   indentation:4
+*
+*   created on: 1999sep13
+*   created by: Markus W. Scherer
+*/
+
+/**
+ * \file
+ * \brief C API: 8-bit Unicode handling macros
+ * 
+ * This file defines macros to deal with 8-bit Unicode (UTF-8) code units (bytes) and strings.
+ *
+ * For more information see utf.h and the ICU User Guide Strings chapter
+ * (http://userguide.icu-project.org/strings).
+ *
+ * <em>Usage:</em>
+ * ICU coding guidelines for if() statements should be followed when using these macros.
+ * Compound statements (curly braces {}) must be used  for if-else-while... 
+ * bodies and all macro statements should be terminated with semicolon.
+ */
+
+#ifndef __UTF8_H__
+#define __UTF8_H__
+
+#include <unicode/umachine.h>
+#ifndef __UTF_H__
+#   include "unicode/utf.h"
+#endif
+
+/* internal definitions ----------------------------------------------------- */
+
+/**
+ * Counts the trail bytes for a UTF-8 lead byte.
+ * Returns 0 for 0..0xc1 as well as for 0xf5..0xff.
+ * leadByte might be evaluated multiple times.
+ *
+ * This is internal since it is not meant to be called directly by external clients;
+ * however it is called by public macros in this file and thus must remain stable.
+ *
+ * @param leadByte The first byte of a UTF-8 sequence. Must be 0..0xff.
+ * @internal
+ */
+#define U8_COUNT_TRAIL_BYTES(leadByte) \
+    (U8_IS_LEAD(leadByte) ? \
+        ((uint8_t)(leadByte)>=0xe0)+((uint8_t)(leadByte)>=0xf0)+1 : 0)
+
+/**
+ * Counts the trail bytes for a UTF-8 lead byte of a valid UTF-8 sequence.
+ * Returns 0 for 0..0xc1. Undefined for 0xf5..0xff.
+ * leadByte might be evaluated multiple times.
+ *
+ * This is internal since it is not meant to be called directly by external clients;
+ * however it is called by public macros in this file and thus must remain stable.
+ *
+ * @param leadByte The first byte of a UTF-8 sequence. Must be 0..0xff.
+ * @internal
+ */
+#define U8_COUNT_TRAIL_BYTES_UNSAFE(leadByte) \
+    (((uint8_t)(leadByte)>=0xc2)+((uint8_t)(leadByte)>=0xe0)+((uint8_t)(leadByte)>=0xf0))
+
+/**
+ * Mask a UTF-8 lead byte, leave only the lower bits that form part of the code point value.
+ *
+ * This is internal since it is not meant to be called directly by external clients;
+ * however it is called by public macros in this file and thus must remain stable.
+ * @internal
+ */
+#define U8_MASK_LEAD_BYTE(leadByte, countTrailBytes) ((leadByte)&=(1<<(6-(countTrailBytes)))-1)
+
+/**
+ * Internal bit vector for 3-byte UTF-8 validity check, for use in U8_IS_VALID_LEAD3_AND_T1.
+ * Each bit indicates whether one lead byte + first trail byte pair starts a valid sequence.
+ * Lead byte E0..EF bits 3..0 are used as byte index,
+ * first trail byte bits 7..5 are used as bit index into that byte.
+ * @see U8_IS_VALID_LEAD3_AND_T1
+ * @internal
+ */
+#define U8_LEAD3_T1_BITS "\x20\x30\x30\x30\x30\x30\x30\x30\x30\x30\x30\x30\x30\x10\x30\x30"
+
+/**
+ * Internal 3-byte UTF-8 validity check.
+ * Non-zero if lead byte E0..EF and first trail byte 00..FF start a valid sequence.
+ * @internal
+ */
+#define U8_IS_VALID_LEAD3_AND_T1(lead, t1) (U8_LEAD3_T1_BITS[(lead)&0xf]&(1<<((uint8_t)(t1)>>5)))
+
+/**
+ * Internal bit vector for 4-byte UTF-8 validity check, for use in U8_IS_VALID_LEAD4_AND_T1.
+ * Each bit indicates whether one lead byte + first trail byte pair starts a valid sequence.
+ * First trail byte bits 7..4 are used as byte index,
+ * lead byte F0..F4 bits 2..0 are used as bit index into that byte.
+ * @see U8_IS_VALID_LEAD4_AND_T1
+ * @internal
+ */
+#define U8_LEAD4_T1_BITS "\x00\x00\x00\x00\x00\x00\x00\x00\x1E\x0F\x0F\x0F\x00\x00\x00\x00"
+
+/**
+ * Internal 4-byte UTF-8 validity check.
+ * Non-zero if lead byte F0..F4 and first trail byte 00..FF start a valid sequence.
+ * @internal
+ */
+#define U8_IS_VALID_LEAD4_AND_T1(lead, t1) (U8_LEAD4_T1_BITS[(uint8_t)(t1)>>4]&(1<<((lead)&7)))
+
+/**
+ * Function for handling "next code point" with error-checking.
+ *
+ * This is internal since it is not meant to be called directly by external clients;
+ * however it is U_STABLE (not U_INTERNAL) since it is called by public macros in this
+ * file and thus must remain stable, and should not be hidden when other internal
+ * functions are hidden (otherwise public macros would fail to compile).
+ * @internal
+ */
+U_STABLE UChar32 U_EXPORT2
+utf8_nextCharSafeBody(const uint8_t *s, int32_t *pi, int32_t length, UChar32 c, UBool strict);
+
+/**
+ * Function for handling "append code point" with error-checking.
+ *
+ * This is internal since it is not meant to be called directly by external clients;
+ * however it is U_STABLE (not U_INTERNAL) since it is called by public macros in this
+ * file and thus must remain stable, and should not be hidden when other internal
+ * functions are hidden (otherwise public macros would fail to compile).
+ * @internal
+ */
+U_STABLE int32_t U_EXPORT2
+utf8_appendCharSafeBody(uint8_t *s, int32_t i, int32_t length, UChar32 c, UBool *pIsError);
+
+/**
+ * Function for handling "previous code point" with error-checking.
+ *
+ * This is internal since it is not meant to be called directly by external clients;
+ * however it is U_STABLE (not U_INTERNAL) since it is called by public macros in this
+ * file and thus must remain stable, and should not be hidden when other internal
+ * functions are hidden (otherwise public macros would fail to compile).
+ * @internal
+ */
+U_STABLE UChar32 U_EXPORT2
+utf8_prevCharSafeBody(const uint8_t *s, int32_t start, int32_t *pi, UChar32 c, UBool strict);
+
+/**
+ * Function for handling "skip backward one code point" with error-checking.
+ *
+ * This is internal since it is not meant to be called directly by external clients;
+ * however it is U_STABLE (not U_INTERNAL) since it is called by public macros in this
+ * file and thus must remain stable, and should not be hidden when other internal
+ * functions are hidden (otherwise public macros would fail to compile).
+ * @internal
+ */
+U_STABLE int32_t U_EXPORT2
+utf8_back1SafeBody(const uint8_t *s, int32_t start, int32_t i);
+
+/* single-code point definitions -------------------------------------------- */
+
+/**
+ * Does this code unit (byte) encode a code point by itself (US-ASCII 0..0x7f)?
+ * @param c 8-bit code unit (byte)
+ * @return TRUE or FALSE
+ * @stable ICU 2.4
+ */
+#define U8_IS_SINGLE(c) (((c)&0x80)==0)
+
+/**
+ * Is this code unit (byte) a UTF-8 lead byte? (0xC2..0xF4)
+ * @param c 8-bit code unit (byte)
+ * @return TRUE or FALSE
+ * @stable ICU 2.4
+ */
+#define U8_IS_LEAD(c) ((uint8_t)((c)-0xc2)<=0x32)
+// 0x32=0xf4-0xc2
+
+/**
+ * Is this code unit (byte) a UTF-8 trail byte? (0x80..0xBF)
+ * @param c 8-bit code unit (byte)
+ * @return TRUE or FALSE
+ * @stable ICU 2.4
+ */
+#define U8_IS_TRAIL(c) ((int8_t)(c)<-0x40)
+
+/**
+ * How many code units (bytes) are used for the UTF-8 encoding
+ * of this Unicode code point?
+ * @param c 32-bit code point
+ * @return 1..4, or 0 if c is a surrogate or not a Unicode code point
+ * @stable ICU 2.4
+ */
+#define U8_LENGTH(c) \
+    ((uint32_t)(c)<=0x7f ? 1 : \
+        ((uint32_t)(c)<=0x7ff ? 2 : \
+            ((uint32_t)(c)<=0xd7ff ? 3 : \
+                ((uint32_t)(c)<=0xdfff || (uint32_t)(c)>0x10ffff ? 0 : \
+                    ((uint32_t)(c)<=0xffff ? 3 : 4)\
+                ) \
+            ) \
+        ) \
+    )
+
+/**
+ * The maximum number of UTF-8 code units (bytes) per Unicode code point (U+0000..U+10ffff).
+ * @return 4
+ * @stable ICU 2.4
+ */
+#define U8_MAX_LENGTH 4
+
+/**
+ * Get a code point from a string at a random-access offset,
+ * without changing the offset.
+ * The offset may point to either the lead byte or one of the trail bytes
+ * for a code point, in which case the macro will read all of the bytes
+ * for the code point.
+ * The result is undefined if the offset points to an illegal UTF-8
+ * byte sequence.
+ * Iteration through a string is more efficient with U8_NEXT_UNSAFE or U8_NEXT.
+ *
+ * @param s const uint8_t * string
+ * @param i string offset
+ * @param c output UChar32 variable
+ * @see U8_GET
+ * @stable ICU 2.4
+ */
+#define U8_GET_UNSAFE(s, i, c) { \
+    int32_t _u8_get_unsafe_index=(int32_t)(i); \
+    U8_SET_CP_START_UNSAFE(s, _u8_get_unsafe_index); \
+    U8_NEXT_UNSAFE(s, _u8_get_unsafe_index, c); \
+}
+
+/**
+ * Get a code point from a string at a random-access offset,
+ * without changing the offset.
+ * The offset may point to either the lead byte or one of the trail bytes
+ * for a code point, in which case the macro will read all of the bytes
+ * for the code point.
+ *
+ * The length can be negative for a NUL-terminated string.
+ *
+ * If the offset points to an illegal UTF-8 byte sequence, then
+ * c is set to a negative value.
+ * Iteration through a string is more efficient with U8_NEXT_UNSAFE or U8_NEXT.
+ *
+ * @param s const uint8_t * string
+ * @param start int32_t starting string offset
+ * @param i int32_t string offset, must be start<=i<length
+ * @param length int32_t string length
+ * @param c output UChar32 variable, set to <0 in case of an error
+ * @see U8_GET_UNSAFE
+ * @stable ICU 2.4
+ */
+#define U8_GET(s, start, i, length, c) { \
+    int32_t _u8_get_index=(i); \
+    U8_SET_CP_START(s, start, _u8_get_index); \
+    U8_NEXT(s, _u8_get_index, length, c); \
+}
+
+/**
+ * Get a code point from a string at a random-access offset,
+ * without changing the offset.
+ * The offset may point to either the lead byte or one of the trail bytes
+ * for a code point, in which case the macro will read all of the bytes
+ * for the code point.
+ *
+ * The length can be negative for a NUL-terminated string.
+ *
+ * If the offset points to an illegal UTF-8 byte sequence, then
+ * c is set to U+FFFD.
+ * Iteration through a string is more efficient with U8_NEXT_UNSAFE or U8_NEXT_OR_FFFD.
+ *
+ * This macro does not distinguish between a real U+FFFD in the text
+ * and U+FFFD returned for an ill-formed sequence.
+ * Use U8_GET() if that distinction is important.
+ *
+ * @param s const uint8_t * string
+ * @param start int32_t starting string offset
+ * @param i int32_t string offset, must be start<=i<length
+ * @param length int32_t string length
+ * @param c output UChar32 variable, set to U+FFFD in case of an error
+ * @see U8_GET
+ * @stable ICU 51
+ */
+#define U8_GET_OR_FFFD(s, start, i, length, c) { \
+    int32_t _u8_get_index=(i); \
+    U8_SET_CP_START(s, start, _u8_get_index); \
+    U8_NEXT_OR_FFFD(s, _u8_get_index, length, c); \
+}
+
+/* definitions with forward iteration --------------------------------------- */
+
+/**
+ * Get a code point from a string at a code point boundary offset,
+ * and advance the offset to the next code point boundary.
+ * (Post-incrementing forward iteration.)
+ * "Unsafe" macro, assumes well-formed UTF-8.
+ *
+ * The offset may point to the lead byte of a multi-byte sequence,
+ * in which case the macro will read the whole sequence.
+ * The result is undefined if the offset points to a trail byte
+ * or an illegal UTF-8 sequence.
+ *
+ * @param s const uint8_t * string
+ * @param i string offset
+ * @param c output UChar32 variable
+ * @see U8_NEXT
+ * @stable ICU 2.4
+ */
+#define U8_NEXT_UNSAFE(s, i, c) { \
+    (c)=(uint8_t)(s)[(i)++]; \
+    if(!U8_IS_SINGLE(c)) { \
+        if((c)<0xe0) { \
+            (c)=(((c)&0x1f)<<6)|((s)[(i)++]&0x3f); \
+        } else if((c)<0xf0) { \
+            /* no need for (c&0xf) because the upper bits are truncated after <<12 in the cast to (UChar) */ \
+            (c)=(UChar)(((c)<<12)|(((s)[i]&0x3f)<<6)|((s)[(i)+1]&0x3f)); \
+            (i)+=2; \
+        } else { \
+            (c)=(((c)&7)<<18)|(((s)[i]&0x3f)<<12)|(((s)[(i)+1]&0x3f)<<6)|((s)[(i)+2]&0x3f); \
+            (i)+=3; \
+        } \
+    } \
+}
+
+/**
+ * Get a code point from a string at a code point boundary offset,
+ * and advance the offset to the next code point boundary.
+ * (Post-incrementing forward iteration.)
+ * "Safe" macro, checks for illegal sequences and for string boundaries.
+ *
+ * The length can be negative for a NUL-terminated string.
+ *
+ * The offset may point to the lead byte of a multi-byte sequence,
+ * in which case the macro will read the whole sequence.
+ * If the offset points to a trail byte or an illegal UTF-8 sequence, then
+ * c is set to a negative value.
+ *
+ * @param s const uint8_t * string
+ * @param i int32_t string offset, must be i<length
+ * @param length int32_t string length
+ * @param c output UChar32 variable, set to <0 in case of an error
+ * @see U8_NEXT_UNSAFE
+ * @stable ICU 2.4
+ */
+#define U8_NEXT(s, i, length, c) U8_INTERNAL_NEXT_OR_SUB(s, i, length, c, U_SENTINEL)
+
+/**
+ * Get a code point from a string at a code point boundary offset,
+ * and advance the offset to the next code point boundary.
+ * (Post-incrementing forward iteration.)
+ * "Safe" macro, checks for illegal sequences and for string boundaries.
+ *
+ * The length can be negative for a NUL-terminated string.
+ *
+ * The offset may point to the lead byte of a multi-byte sequence,
+ * in which case the macro will read the whole sequence.
+ * If the offset points to a trail byte or an illegal UTF-8 sequence, then
+ * c is set to U+FFFD.
+ *
+ * This macro does not distinguish between a real U+FFFD in the text
+ * and U+FFFD returned for an ill-formed sequence.
+ * Use U8_NEXT() if that distinction is important.
+ *
+ * @param s const uint8_t * string
+ * @param i int32_t string offset, must be i<length
+ * @param length int32_t string length
+ * @param c output UChar32 variable, set to U+FFFD in case of an error
+ * @see U8_NEXT
+ * @stable ICU 51
+ */
+#define U8_NEXT_OR_FFFD(s, i, length, c) U8_INTERNAL_NEXT_OR_SUB(s, i, length, c, 0xfffd)
+
+/** @internal */
+#define U8_INTERNAL_NEXT_OR_SUB(s, i, length, c, sub) { \
+    (c)=(uint8_t)(s)[(i)++]; \
+    if(!U8_IS_SINGLE(c)) { \
+        uint8_t __t = 0; \
+        if((i)!=(length) && \
+            /* fetch/validate/assemble all but last trail byte */ \
+            ((c)>=0xe0 ? \
+                ((c)<0xf0 ?  /* U+0800..U+FFFF except surrogates */ \
+                    U8_LEAD3_T1_BITS[(c)&=0xf]&(1<<((__t=(s)[i])>>5)) && \
+                    (__t&=0x3f, 1) \
+                :  /* U+10000..U+10FFFF */ \
+                    ((c)-=0xf0)<=4 && \
+                    U8_LEAD4_T1_BITS[(__t=(s)[i])>>4]&(1<<(c)) && \
+                    ((c)=((c)<<6)|(__t&0x3f), ++(i)!=(length)) && \
+                    (__t=(s)[i]-0x80)<=0x3f) && \
+                /* valid second-to-last trail byte */ \
+                ((c)=((c)<<6)|__t, ++(i)!=(length)) \
+            :  /* U+0080..U+07FF */ \
+                (c)>=0xc2 && ((c)&=0x1f, 1)) && \
+            /* last trail byte */ \
+            (__t=(s)[i]-0x80)<=0x3f && \
+            ((c)=((c)<<6)|__t, ++(i), 1)) { \
+        } else { \
+            (c)=(sub);  /* ill-formed*/ \
+        } \
+    } \
+}
+
+/**
+ * Append a code point to a string, overwriting 1 to 4 bytes.
+ * The offset points to the current end of the string contents
+ * and is advanced (post-increment).
+ * "Unsafe" macro, assumes a valid code point and sufficient space in the string.
+ * Otherwise, the result is undefined.
+ *
+ * @param s const uint8_t * string buffer
+ * @param i string offset
+ * @param c code point to append
+ * @see U8_APPEND
+ * @stable ICU 2.4
+ */
+#define U8_APPEND_UNSAFE(s, i, c) { \
+    uint32_t __uc=(c); \
+    if(__uc<=0x7f) { \
+        (s)[(i)++]=(uint8_t)__uc; \
+    } else { \
+        if(__uc<=0x7ff) { \
+            (s)[(i)++]=(uint8_t)((__uc>>6)|0xc0); \
+        } else { \
+            if(__uc<=0xffff) { \
+                (s)[(i)++]=(uint8_t)((__uc>>12)|0xe0); \
+            } else { \
+                (s)[(i)++]=(uint8_t)((__uc>>18)|0xf0); \
+                (s)[(i)++]=(uint8_t)(((__uc>>12)&0x3f)|0x80); \
+            } \
+            (s)[(i)++]=(uint8_t)(((__uc>>6)&0x3f)|0x80); \
+        } \
+        (s)[(i)++]=(uint8_t)((__uc&0x3f)|0x80); \
+    } \
+}
+
+/**
+ * Append a code point to a string, overwriting 1 to 4 bytes.
+ * The offset points to the current end of the string contents
+ * and is advanced (post-increment).
+ * "Safe" macro, checks for a valid code point.
+ * If a non-ASCII code point is written, checks for sufficient space in the string.
+ * If the code point is not valid or trail bytes do not fit,
+ * then isError is set to TRUE.
+ *
+ * @param s const uint8_t * string buffer
+ * @param i int32_t string offset, must be i<capacity
+ * @param capacity int32_t size of the string buffer
+ * @param c UChar32 code point to append
+ * @param isError output UBool set to TRUE if an error occurs, otherwise not modified
+ * @see U8_APPEND_UNSAFE
+ * @stable ICU 2.4
+ */
+#define U8_APPEND(s, i, capacity, c, isError) { \
+    uint32_t __uc=(c); \
+    if(__uc<=0x7f) { \
+        (s)[(i)++]=(uint8_t)__uc; \
+    } else if(__uc<=0x7ff && (i)+1<(capacity)) { \
+        (s)[(i)++]=(uint8_t)((__uc>>6)|0xc0); \
+        (s)[(i)++]=(uint8_t)((__uc&0x3f)|0x80); \
+    } else if((__uc<=0xd7ff || (0xe000<=__uc && __uc<=0xffff)) && (i)+2<(capacity)) { \
+        (s)[(i)++]=(uint8_t)((__uc>>12)|0xe0); \
+        (s)[(i)++]=(uint8_t)(((__uc>>6)&0x3f)|0x80); \
+        (s)[(i)++]=(uint8_t)((__uc&0x3f)|0x80); \
+    } else if(0xffff<__uc && __uc<=0x10ffff && (i)+3<(capacity)) { \
+        (s)[(i)++]=(uint8_t)((__uc>>18)|0xf0); \
+        (s)[(i)++]=(uint8_t)(((__uc>>12)&0x3f)|0x80); \
+        (s)[(i)++]=(uint8_t)(((__uc>>6)&0x3f)|0x80); \
+        (s)[(i)++]=(uint8_t)((__uc&0x3f)|0x80); \
+    } else { \
+        (isError)=TRUE; \
+    } \
+}
+
+/**
+ * Advance the string offset from one code point boundary to the next.
+ * (Post-incrementing iteration.)
+ * "Unsafe" macro, assumes well-formed UTF-8.
+ *
+ * @param s const uint8_t * string
+ * @param i string offset
+ * @see U8_FWD_1
+ * @stable ICU 2.4
+ */
+#define U8_FWD_1_UNSAFE(s, i) { \
+    (i)+=1+U8_COUNT_TRAIL_BYTES_UNSAFE((s)[i]); \
+}
+
+/**
+ * Advance the string offset from one code point boundary to the next.
+ * (Post-incrementing iteration.)
+ * "Safe" macro, checks for illegal sequences and for string boundaries.
+ *
+ * The length can be negative for a NUL-terminated string.
+ *
+ * @param s const uint8_t * string
+ * @param i int32_t string offset, must be i<length
+ * @param length int32_t string length
+ * @see U8_FWD_1_UNSAFE
+ * @stable ICU 2.4
+ */
+#define U8_FWD_1(s, i, length) { \
+    uint8_t __b=(s)[(i)++]; \
+    if(U8_IS_LEAD(__b) && (i)!=(length)) { \
+        uint8_t __t1=(s)[i]; \
+        if((0xe0<=__b && __b<0xf0)) { \
+            if(U8_IS_VALID_LEAD3_AND_T1(__b, __t1) && \
+                    ++(i)!=(length) && U8_IS_TRAIL((s)[i])) { \
+                ++(i); \
+            } \
+        } else if(__b<0xe0) { \
+            if(U8_IS_TRAIL(__t1)) { \
+                ++(i); \
+            } \
+        } else /* c>=0xf0 */ { \
+            if(U8_IS_VALID_LEAD4_AND_T1(__b, __t1) && \
+                    ++(i)!=(length) && U8_IS_TRAIL((s)[i]) && \
+                    ++(i)!=(length) && U8_IS_TRAIL((s)[i])) { \
+                ++(i); \
+            } \
+        } \
+    } \
+}
+
+/**
+ * Advance the string offset from one code point boundary to the n-th next one,
+ * i.e., move forward by n code points.
+ * (Post-incrementing iteration.)
+ * "Unsafe" macro, assumes well-formed UTF-8.
+ *
+ * @param s const uint8_t * string
+ * @param i string offset
+ * @param n number of code points to skip
+ * @see U8_FWD_N
+ * @stable ICU 2.4
+ */
+#define U8_FWD_N_UNSAFE(s, i, n) { \
+    int32_t __N=(n); \
+    while(__N>0) { \
+        U8_FWD_1_UNSAFE(s, i); \
+        --__N; \
+    } \
+}
+
+/**
+ * Advance the string offset from one code point boundary to the n-th next one,
+ * i.e., move forward by n code points.
+ * (Post-incrementing iteration.)
+ * "Safe" macro, checks for illegal sequences and for string boundaries.
+ *
+ * The length can be negative for a NUL-terminated string.
+ *
+ * @param s const uint8_t * string
+ * @param i int32_t string offset, must be i<length
+ * @param length int32_t string length
+ * @param n number of code points to skip
+ * @see U8_FWD_N_UNSAFE
+ * @stable ICU 2.4
+ */
+#define U8_FWD_N(s, i, length, n) { \
+    int32_t __N=(n); \
+    while(__N>0 && ((i)<(length) || ((length)<0 && (s)[i]!=0))) { \
+        U8_FWD_1(s, i, length); \
+        --__N; \
+    } \
+}
+
+/**
+ * Adjust a random-access offset to a code point boundary
+ * at the start of a code point.
+ * If the offset points to a UTF-8 trail byte,
+ * then the offset is moved backward to the corresponding lead byte.
+ * Otherwise, it is not modified.
+ * "Unsafe" macro, assumes well-formed UTF-8.
+ *
+ * @param s const uint8_t * string
+ * @param i string offset
+ * @see U8_SET_CP_START
+ * @stable ICU 2.4
+ */
+#define U8_SET_CP_START_UNSAFE(s, i) { \
+    while(U8_IS_TRAIL((s)[i])) { --(i); } \
+}
+
+/**
+ * Adjust a random-access offset to a code point boundary
+ * at the start of a code point.
+ * If the offset points to a UTF-8 trail byte,
+ * then the offset is moved backward to the corresponding lead byte.
+ * Otherwise, it is not modified.
+ *
+ * "Safe" macro, checks for illegal sequences and for string boundaries.
+ * Unlike U8_TRUNCATE_IF_INCOMPLETE(), this macro always reads s[i].
+ *
+ * @param s const uint8_t * string
+ * @param start int32_t starting string offset (usually 0)
+ * @param i int32_t string offset, must be start<=i
+ * @see U8_SET_CP_START_UNSAFE
+ * @see U8_TRUNCATE_IF_INCOMPLETE
+ * @stable ICU 2.4
+ */
+#define U8_SET_CP_START(s, start, i) { \
+    if(U8_IS_TRAIL((s)[(i)])) { \
+        (i)=utf8_back1SafeBody(s, start, (i)); \
+    } \
+}
+
+#ifndef U_HIDE_DRAFT_API
+/**
+ * If the string ends with a UTF-8 byte sequence that is valid so far
+ * but incomplete, then reduce the length of the string to end before
+ * the lead byte of that incomplete sequence.
+ * For example, if the string ends with E1 80, the length is reduced by 2.
+ *
+ * In all other cases (the string ends with a complete sequence, or it is not
+ * possible for any further trail byte to extend the trailing sequence)
+ * the length remains unchanged.
+ *
+ * Useful for processing text split across multiple buffers
+ * (save the incomplete sequence for later)
+ * and for optimizing iteration
+ * (check for string length only once per character).
+ *
+ * "Safe" macro, checks for illegal sequences and for string boundaries.
+ * Unlike U8_SET_CP_START(), this macro never reads s[length].
+ *
+ * (In UTF-16, simply check for U16_IS_LEAD(last code unit).)
+ *
+ * @param s const uint8_t * string
+ * @param start int32_t starting string offset (usually 0)
+ * @param length int32_t string length (usually start<=length)
+ * @see U8_SET_CP_START
+ * @draft ICU 61
+ */
+#define U8_TRUNCATE_IF_INCOMPLETE(s, start, length) \
+    if((length)>(start)) { \
+        uint8_t __b1=s[(length)-1]; \
+        if(U8_IS_SINGLE(__b1)) { \
+            /* common ASCII character */ \
+        } else if(U8_IS_LEAD(__b1)) { \
+            --(length); \
+        } else if(U8_IS_TRAIL(__b1) && ((length)-2)>=(start)) { \
+            uint8_t __b2=s[(length)-2]; \
+            if(0xe0<=__b2 && __b2<=0xf4) { \
+                if(__b2<0xf0 ? U8_IS_VALID_LEAD3_AND_T1(__b2, __b1) : \
+                        U8_IS_VALID_LEAD4_AND_T1(__b2, __b1)) { \
+                    (length)-=2; \
+                } \
+            } else if(U8_IS_TRAIL(__b2) && ((length)-3)>=(start)) { \
+                uint8_t __b3=s[(length)-3]; \
+                if(0xf0<=__b3 && __b3<=0xf4 && U8_IS_VALID_LEAD4_AND_T1(__b3, __b2)) { \
+                    (length)-=3; \
+                } \
+            } \
+        } \
+    }
+#endif  // U_HIDE_DRAFT_API
+
+/* definitions with backward iteration -------------------------------------- */
+
+/**
+ * Move the string offset from one code point boundary to the previous one
+ * and get the code point between them.
+ * (Pre-decrementing backward iteration.)
+ * "Unsafe" macro, assumes well-formed UTF-8.
+ *
+ * The input offset may be the same as the string length.
+ * If the offset is behind a multi-byte sequence, then the macro will read
+ * the whole sequence.
+ * If the offset is behind a lead byte, then that itself
+ * will be returned as the code point.
+ * The result is undefined if the offset is behind an illegal UTF-8 sequence.
+ *
+ * @param s const uint8_t * string
+ * @param i string offset
+ * @param c output UChar32 variable
+ * @see U8_PREV
+ * @stable ICU 2.4
+ */
+#define U8_PREV_UNSAFE(s, i, c) { \
+    (c)=(uint8_t)(s)[--(i)]; \
+    if(U8_IS_TRAIL(c)) { \
+        uint8_t __b, __count=1, __shift=6; \
+\
+        /* c is a trail byte */ \
+        (c)&=0x3f; \
+        for(;;) { \
+            __b=(s)[--(i)]; \
+            if(__b>=0xc0) { \
+                U8_MASK_LEAD_BYTE(__b, __count); \
+                (c)|=(UChar32)__b<<__shift; \
+                break; \
+            } else { \
+                (c)|=(UChar32)(__b&0x3f)<<__shift; \
+                ++__count; \
+                __shift+=6; \
+            } \
+        } \
+    } \
+}
+
+/**
+ * Move the string offset from one code point boundary to the previous one
+ * and get the code point between them.
+ * (Pre-decrementing backward iteration.)
+ * "Safe" macro, checks for illegal sequences and for string boundaries.
+ *
+ * The input offset may be the same as the string length.
+ * If the offset is behind a multi-byte sequence, then the macro will read
+ * the whole sequence.
+ * If the offset is behind a lead byte, then that itself
+ * will be returned as the code point.
+ * If the offset is behind an illegal UTF-8 sequence, then c is set to a negative value.
+ *
+ * @param s const uint8_t * string
+ * @param start int32_t starting string offset (usually 0)
+ * @param i int32_t string offset, must be start<i
+ * @param c output UChar32 variable, set to <0 in case of an error
+ * @see U8_PREV_UNSAFE
+ * @stable ICU 2.4
+ */
+#define U8_PREV(s, start, i, c) { \
+    (c)=(uint8_t)(s)[--(i)]; \
+    if(!U8_IS_SINGLE(c)) { \
+        (c)=utf8_prevCharSafeBody((const uint8_t *)s, start, &(i), c, -1); \
+    } \
+}
+
+/**
+ * Move the string offset from one code point boundary to the previous one
+ * and get the code point between them.
+ * (Pre-decrementing backward iteration.)
+ * "Safe" macro, checks for illegal sequences and for string boundaries.
+ *
+ * The input offset may be the same as the string length.
+ * If the offset is behind a multi-byte sequence, then the macro will read
+ * the whole sequence.
+ * If the offset is behind a lead byte, then that itself
+ * will be returned as the code point.
+ * If the offset is behind an illegal UTF-8 sequence, then c is set to U+FFFD.
+ *
+ * This macro does not distinguish between a real U+FFFD in the text
+ * and U+FFFD returned for an ill-formed sequence.
+ * Use U8_PREV() if that distinction is important.
+ *
+ * @param s const uint8_t * string
+ * @param start int32_t starting string offset (usually 0)
+ * @param i int32_t string offset, must be start<i
+ * @param c output UChar32 variable, set to U+FFFD in case of an error
+ * @see U8_PREV
+ * @stable ICU 51
+ */
+#define U8_PREV_OR_FFFD(s, start, i, c) { \
+    (c)=(uint8_t)(s)[--(i)]; \
+    if(!U8_IS_SINGLE(c)) { \
+        (c)=utf8_prevCharSafeBody((const uint8_t *)s, start, &(i), c, -3); \
+    } \
+}
+
+/**
+ * Move the string offset from one code point boundary to the previous one.
+ * (Pre-decrementing backward iteration.)
+ * The input offset may be the same as the string length.
+ * "Unsafe" macro, assumes well-formed UTF-8.
+ *
+ * @param s const uint8_t * string
+ * @param i string offset
+ * @see U8_BACK_1
+ * @stable ICU 2.4
+ */
+#define U8_BACK_1_UNSAFE(s, i) { \
+    while(U8_IS_TRAIL((s)[--(i)])) {} \
+}
+
+/**
+ * Move the string offset from one code point boundary to the previous one.
+ * (Pre-decrementing backward iteration.)
+ * The input offset may be the same as the string length.
+ * "Safe" macro, checks for illegal sequences and for string boundaries.
+ *
+ * @param s const uint8_t * string
+ * @param start int32_t starting string offset (usually 0)
+ * @param i int32_t string offset, must be start<i
+ * @see U8_BACK_1_UNSAFE
+ * @stable ICU 2.4
+ */
+#define U8_BACK_1(s, start, i) { \
+    if(U8_IS_TRAIL((s)[--(i)])) { \
+        (i)=utf8_back1SafeBody(s, start, (i)); \
+    } \
+}
+
+/**
+ * Move the string offset from one code point boundary to the n-th one before it,
+ * i.e., move backward by n code points.
+ * (Pre-decrementing backward iteration.)
+ * The input offset may be the same as the string length.
+ * "Unsafe" macro, assumes well-formed UTF-8.
+ *
+ * @param s const uint8_t * string
+ * @param i string offset
+ * @param n number of code points to skip
+ * @see U8_BACK_N
+ * @stable ICU 2.4
+ */
+#define U8_BACK_N_UNSAFE(s, i, n) { \
+    int32_t __N=(n); \
+    while(__N>0) { \
+        U8_BACK_1_UNSAFE(s, i); \
+        --__N; \
+    } \
+}
+
+/**
+ * Move the string offset from one code point boundary to the n-th one before it,
+ * i.e., move backward by n code points.
+ * (Pre-decrementing backward iteration.)
+ * The input offset may be the same as the string length.
+ * "Safe" macro, checks for illegal sequences and for string boundaries.
+ *
+ * @param s const uint8_t * string
+ * @param start int32_t index of the start of the string
+ * @param i int32_t string offset, must be start<i
+ * @param n number of code points to skip
+ * @see U8_BACK_N_UNSAFE
+ * @stable ICU 2.4
+ */
+#define U8_BACK_N(s, start, i, n) { \
+    int32_t __N=(n); \
+    while(__N>0 && (i)>(start)) { \
+        U8_BACK_1(s, start, i); \
+        --__N; \
+    } \
+}
+
+/**
+ * Adjust a random-access offset to a code point boundary after a code point.
+ * If the offset is behind a partial multi-byte sequence,
+ * then the offset is incremented to behind the whole sequence.
+ * Otherwise, it is not modified.
+ * The input offset may be the same as the string length.
+ * "Unsafe" macro, assumes well-formed UTF-8.
+ *
+ * @param s const uint8_t * string
+ * @param i string offset
+ * @see U8_SET_CP_LIMIT
+ * @stable ICU 2.4
+ */
+#define U8_SET_CP_LIMIT_UNSAFE(s, i) { \
+    U8_BACK_1_UNSAFE(s, i); \
+    U8_FWD_1_UNSAFE(s, i); \
+}
+
+/**
+ * Adjust a random-access offset to a code point boundary after a code point.
+ * If the offset is behind a partial multi-byte sequence,
+ * then the offset is incremented to behind the whole sequence.
+ * Otherwise, it is not modified.
+ * The input offset may be the same as the string length.
+ * "Safe" macro, checks for illegal sequences and for string boundaries.
+ *
+ * The length can be negative for a NUL-terminated string.
+ *
+ * @param s const uint8_t * string
+ * @param start int32_t starting string offset (usually 0)
+ * @param i int32_t string offset, must be start<=i<=length
+ * @param length int32_t string length
+ * @see U8_SET_CP_LIMIT_UNSAFE
+ * @stable ICU 2.4
+ */
+#define U8_SET_CP_LIMIT(s, start, i, length) { \
+    if((start)<(i) && ((i)<(length) || (length)<0)) { \
+        U8_BACK_1(s, start, i); \
+        U8_FWD_1(s, i, length); \
+    } \
+}
+
+#endif
diff --git a/vendor/icu/include/unicode/utf_old.h b/vendor/icu/include/unicode/utf_old.h
new file mode 100644
index 0000000000..ec34494681
--- /dev/null
+++ b/vendor/icu/include/unicode/utf_old.h
@@ -0,0 +1,1204 @@
+// © 2016 and later: Unicode, Inc. and others.
+// License & terms of use: http://www.unicode.org/copyright.html
+/*
+*******************************************************************************
+*
+*   Copyright (C) 2002-2012, International Business Machines
+*   Corporation and others.  All Rights Reserved.
+*
+*******************************************************************************
+*   file name:  utf_old.h
+*   encoding:   UTF-8
+*   tab size:   8 (not used)
+*   indentation:4
+*
+*   created on: 2002sep21
+*   created by: Markus W. Scherer
+*/
+
+/**
+ * \file
+ * \brief C API: Deprecated macros for Unicode string handling
+ */
+
+/**
+ *
+ * The macros in utf_old.h are all deprecated and their use discouraged.
+ * Some of the design principles behind the set of UTF macros
+ * have changed or proved impractical.
+ * Almost all of the old "UTF macros" are at least renamed.
+ * If you are looking for a new equivalent to an old macro, please see the
+ * comment at the old one.
+ *
+ * Brief summary of reasons for deprecation:
+ * - Switch on UTF_SIZE (selection of UTF-8/16/32 default string processing)
+ *   was impractical.
+ * - Switch on UTF_SAFE etc. (selection of unsafe/safe/strict default string processing)
+ *   was of little use and impractical.
+ * - Whole classes of macros became obsolete outside of the UTF_SIZE/UTF_SAFE
+ *   selection framework: UTF32_ macros (all trivial)
+ *   and UTF_ default and intermediate macros (all aliases).
+ * - The selection framework also caused many macro aliases.
+ * - Change in Unicode standard: "irregular" sequences (3.0) became illegal (3.2).
+ * - Change of language in Unicode standard:
+ *   Growing distinction between internal x-bit Unicode strings and external UTF-x
+ *   forms, with the former more lenient.
+ *   Suggests renaming of UTF16_ macros to U16_.
+ * - The prefix "UTF_" without a width number confused some users.
+ * - "Safe" append macros needed the addition of an error indicator output.
+ * - "Safe" UTF-8 macros used legitimate (if rarely used) code point values
+ *   to indicate error conditions.
+ * - The use of the "_CHAR" infix for code point operations confused some users.
+ *
+ * More details:
+ *
+ * Until ICU 2.2, utf.h theoretically allowed to choose among UTF-8/16/32
+ * for string processing, and among unsafe/safe/strict default macros for that.
+ *
+ * It proved nearly impossible to write non-trivial, high-performance code
+ * that is UTF-generic.
+ * Unsafe default macros would be dangerous for default string processing,
+ * and the main reason for the "strict" versions disappeared:
+ * Between Unicode 3.0 and 3.2 all "irregular" UTF-8 sequences became illegal.
+ * The only other conditions that "strict" checked for were non-characters,
+ * which are valid during processing. Only during text input/output should they
+ * be checked, and at that time other well-formedness checks may be
+ * necessary or useful as well.
+ * This can still be done by using U16_NEXT and U_IS_UNICODE_NONCHAR
+ * or U_IS_UNICODE_CHAR.
+ *
+ * The old UTF8_..._SAFE macros also used some normal Unicode code points
+ * to indicate malformed sequences.
+ * The new UTF8_ macros without suffix use negative values instead.
+ *
+ * The entire contents of utf32.h was moved here without replacement
+ * because all those macros were trivial and
+ * were meaningful only in the framework of choosing the UTF size.
+ *
+ * See Jitterbug 2150 and its discussion on the ICU mailing list
+ * in September 2002.
+ *
+ * <hr>
+ *
+ * <em>Obsolete part</em> of pre-ICU 2.4 utf.h file documentation:
+ *
+ * <p>The original concept for these files was for ICU to allow
+ * in principle to set which UTF (UTF-8/16/32) is used internally
+ * by defining UTF_SIZE to either 8, 16, or 32. utf.h would then define the UChar type
+ * accordingly. UTF-16 was the default.</p>
+ *
+ * <p>This concept has been abandoned.
+ * A lot of the ICU source code assumes UChar strings are in UTF-16.
+ * This is especially true for low-level code like
+ * conversion, normalization, and collation.
+ * The utf.h header enforces the default of UTF-16.
+ * The UTF-8 and UTF-32 macros remain for now for completeness and backward compatibility.</p>
+ *
+ * <p>Accordingly, utf.h defines UChar to be an unsigned 16-bit integer. If this matches wchar_t, then
+ * UChar is defined to be exactly wchar_t, otherwise uint16_t.</p>
+ *
+ * <p>UChar32 is defined to be a signed 32-bit integer (int32_t), large enough for a 21-bit
+ * Unicode code point (Unicode scalar value, 0..0x10ffff).
+ * Before ICU 2.4, the definition of UChar32 was similarly platform-dependent as
+ * the definition of UChar. For details see the documentation for UChar32 itself.</p>
+ *
+ * <p>utf.h also defines a number of C macros for handling single Unicode code points and
+ * for using UTF Unicode strings. It includes utf8.h, utf16.h, and utf32.h for the actual
+ * implementations of those macros and then aliases one set of them (for UTF-16) for general use.
+ * The UTF-specific macros have the UTF size in the macro name prefixes (UTF16_...), while
+ * the general alias macros always begin with UTF_...</p>
+ *
+ * <p>Many string operations can be done with or without error checking.
+ * Where such a distinction is useful, there are two versions of the macros, "unsafe" and "safe"
+ * ones with ..._UNSAFE and ..._SAFE suffixes. The unsafe macros are fast but may cause
+ * program failures if the strings are not well-formed. The safe macros have an additional, boolean
+ * parameter "strict". If strict is FALSE, then only illegal sequences are detected.
+ * Otherwise, irregular sequences and non-characters are detected as well (like single surrogates).
+ * Safe macros return special error code points for illegal/irregular sequences:
+ * Typically, U+ffff, or values that would result in a code unit sequence of the same length
+ * as the erroneous input sequence.<br>
+ * Note that _UNSAFE macros have fewer parameters: They do not have the strictness parameter, and
+ * they do not have start/length parameters for boundary checking.</p>
+ *
+ * <p>Here, the macros are aliased in two steps:
+ * In the first step, the UTF-specific macros with UTF16_ prefix and _UNSAFE and _SAFE suffixes are
+ * aliased according to the UTF_SIZE to macros with UTF_ prefix and the same suffixes and signatures.
+ * Then, in a second step, the default, general alias macros are set to use either the unsafe or
+ * the safe/not strict (default) or the safe/strict macro;
+ * these general macros do not have a strictness parameter.</p>
+ *
+ * <p>It is possible to change the default choice for the general alias macros to be unsafe, safe/not strict or safe/strict.
+ * The default is safe/not strict. It is not recommended to select the unsafe macros as the basis for
+ * Unicode string handling in ICU! To select this, define UTF_SAFE, UTF_STRICT, or UTF_UNSAFE.</p>
+ *
+ * <p>For general use, one should use the default, general macros with UTF_ prefix and no _SAFE/_UNSAFE suffix.
+ * Only in some cases it may be necessary to control the choice of macro directly and use a less generic alias.
+ * For example, if it can be assumed that a string is well-formed and the index will stay within the bounds,
+ * then the _UNSAFE version may be used.
+ * If a UTF-8 string is to be processed, then the macros with UTF8_ prefixes need to be used.</p>
+ *
+ * <hr>
+ *
+ * @deprecated ICU 2.4. Use the macros in utf.h, utf16.h, utf8.h instead.
+ */
+
+#ifndef __UTF_OLD_H__
+#define __UTF_OLD_H__
+
+/**
+ * \def U_HIDE_OBSOLETE_UTF_OLD_H
+ *
+ * Hides the obsolete definitions in unicode/utf_old.h.
+ * Recommended to be set to 1 at compile time to make sure
+ * the long-deprecated macros are no longer used.
+ *
+ * For reasons for the deprecation see the utf_old.h file comments.
+ *
+ * @internal
+ */
+#ifndef U_HIDE_OBSOLETE_UTF_OLD_H
+#   define U_HIDE_OBSOLETE_UTF_OLD_H 0
+#endif
+
+#if !defined(U_HIDE_DEPRECATED_API) && !U_HIDE_OBSOLETE_UTF_OLD_H
+
+#include <unicode/utf.h>
+#include <unicode/utf8.h>
+#include <unicode/utf16.h>
+
+/* Formerly utf.h, part 1 --------------------------------------------------- */
+
+#ifdef U_USE_UTF_DEPRECATES
+/**
+ * Unicode string and array offset and index type.
+ * ICU always counts Unicode code units (UChars) for
+ * string offsets, indexes, and lengths, not Unicode code points.
+ *
+ * @obsolete ICU 2.6. Use int32_t directly instead since this API will be removed in that release.
+ */
+typedef int32_t UTextOffset;
+#endif
+
+/** Number of bits in a Unicode string code unit - ICU uses 16-bit Unicode. @deprecated ICU 2.4. Obsolete, see utf_old.h. */
+#define UTF_SIZE 16
+
+/**
+ * The default choice for general Unicode string macros is to use the ..._SAFE macro implementations
+ * with strict=FALSE.
+ *
+ * @deprecated ICU 2.4. Obsolete, see utf_old.h.
+ */
+#define UTF_SAFE
+/** @deprecated ICU 2.4. Obsolete, see utf_old.h. */
+#undef UTF_UNSAFE
+/** @deprecated ICU 2.4. Obsolete, see utf_old.h. */
+#undef UTF_STRICT
+
+/**
+ * UTF8_ERROR_VALUE_1 and UTF8_ERROR_VALUE_2 are special error values for UTF-8,
+ * which need 1 or 2 bytes in UTF-8:
+ * \code
+ * U+0015 = NAK = Negative Acknowledge, C0 control character
+ * U+009f = highest C1 control character
+ * \endcode
+ *
+ * These are used by UTF8_..._SAFE macros so that they can return an error value
+ * that needs the same number of code units (bytes) as were seen by
+ * a macro. They should be tested with UTF_IS_ERROR() or UTF_IS_VALID().
+ *
+ * @deprecated ICU 2.4. Obsolete, see utf_old.h.
+ */
+#define UTF8_ERROR_VALUE_1 0x15
+
+/**
+ * See documentation on UTF8_ERROR_VALUE_1 for details.
+ *
+ * @deprecated ICU 2.4. Obsolete, see utf_old.h.
+ */
+#define UTF8_ERROR_VALUE_2 0x9f
+
+/**
+ * Error value for all UTFs. This code point value will be set by macros with error
+ * checking if an error is detected.
+ *
+ * @deprecated ICU 2.4. Obsolete, see utf_old.h.
+ */
+#define UTF_ERROR_VALUE 0xffff
+
+/**
+ * Is a given 32-bit code an error value
+ * as returned by one of the macros for any UTF?
+ *
+ * @deprecated ICU 2.4. Obsolete, see utf_old.h.
+ */
+#define UTF_IS_ERROR(c) \
+    (((c)&0xfffe)==0xfffe || (c)==UTF8_ERROR_VALUE_1 || (c)==UTF8_ERROR_VALUE_2)
+
+/**
+ * This is a combined macro: Is c a valid Unicode value _and_ not an error code?
+ *
+ * @deprecated ICU 2.4. Obsolete, see utf_old.h.
+ */
+#define UTF_IS_VALID(c) \
+    (UTF_IS_UNICODE_CHAR(c) && \
+     (c)!=UTF8_ERROR_VALUE_1 && (c)!=UTF8_ERROR_VALUE_2)
+
+/**
+ * Is this code unit or code point a surrogate (U+d800..U+dfff)?
+ * @deprecated ICU 2.4. Renamed to U_IS_SURROGATE and U16_IS_SURROGATE, see utf_old.h.
+ */
+#define UTF_IS_SURROGATE(uchar) (((uchar)&0xfffff800)==0xd800)
+
+/**
+ * Is a given 32-bit code point a Unicode noncharacter?
+ *
+ * @deprecated ICU 2.4. Renamed to U_IS_UNICODE_NONCHAR, see utf_old.h.
+ */
+#define UTF_IS_UNICODE_NONCHAR(c) \
+    ((c)>=0xfdd0 && \
+     ((uint32_t)(c)<=0xfdef || ((c)&0xfffe)==0xfffe) && \
+     (uint32_t)(c)<=0x10ffff)
+
+/**
+ * Is a given 32-bit value a Unicode code point value (0..U+10ffff)
+ * that can be assigned a character?
+ *
+ * Code points that are not characters include:
+ * - single surrogate code points (U+d800..U+dfff, 2048 code points)
+ * - the last two code points on each plane (U+__fffe and U+__ffff, 34 code points)
+ * - U+fdd0..U+fdef (new with Unicode 3.1, 32 code points)
+ * - the highest Unicode code point value is U+10ffff
+ *
+ * This means that all code points below U+d800 are character code points,
+ * and that boundary is tested first for performance.
+ *
+ * @deprecated ICU 2.4. Renamed to U_IS_UNICODE_CHAR, see utf_old.h.
+ */
+#define UTF_IS_UNICODE_CHAR(c) \
+    ((uint32_t)(c)<0xd800 || \
+        ((uint32_t)(c)>0xdfff && \
+         (uint32_t)(c)<=0x10ffff && \
+         !UTF_IS_UNICODE_NONCHAR(c)))
+
+/* Formerly utf8.h ---------------------------------------------------------- */
+
+/**
+* \var utf8_countTrailBytes
+* Internal array with numbers of trail bytes for any given byte used in
+* lead byte position.
+*
+* This is internal since it is not meant to be called directly by external clients;
+* however it is called by public macros in this file and thus must remain stable,
+* and should not be hidden when other internal functions are hidden (otherwise
+* public macros would fail to compile).
+* @internal
+*/
+#ifdef U_UTF8_IMPL
+// No forward declaration if compiling utf_impl.cpp, which defines utf8_countTrailBytes.
+#elif defined(U_STATIC_IMPLEMENTATION) || defined(U_COMMON_IMPLEMENTATION)
+U_CFUNC const uint8_t utf8_countTrailBytes[];
+#else
+U_CFUNC U_IMPORT const uint8_t utf8_countTrailBytes[];    /* U_IMPORT2? */ /*U_IMPORT*/
+#endif
+
+/**
+ * Count the trail bytes for a UTF-8 lead byte.
+ * @deprecated ICU 2.4. Renamed to U8_COUNT_TRAIL_BYTES, see utf_old.h.
+ */
+#define UTF8_COUNT_TRAIL_BYTES(leadByte) (utf8_countTrailBytes[(uint8_t)leadByte])
+
+/**
+ * Mask a UTF-8 lead byte, leave only the lower bits that form part of the code point value.
+ * @deprecated ICU 2.4. Renamed to U8_MASK_LEAD_BYTE, see utf_old.h.
+ */
+#define UTF8_MASK_LEAD_BYTE(leadByte, countTrailBytes) ((leadByte)&=(1<<(6-(countTrailBytes)))-1)
+
+/** Is this this code point a single code unit (byte)? @deprecated ICU 2.4. Renamed to U8_IS_SINGLE, see utf_old.h. */
+#define UTF8_IS_SINGLE(uchar) (((uchar)&0x80)==0)
+/** Is this this code unit the lead code unit (byte) of a code point? @deprecated ICU 2.4. Renamed to U8_IS_LEAD, see utf_old.h. */
+#define UTF8_IS_LEAD(uchar) ((uint8_t)((uchar)-0xc0)<0x3e)
+/** Is this this code unit a trailing code unit (byte) of a code point? @deprecated ICU 2.4. Renamed to U8_IS_TRAIL, see utf_old.h. */
+#define UTF8_IS_TRAIL(uchar) (((uchar)&0xc0)==0x80)
+
+/** Does this scalar Unicode value need multiple code units for storage? @deprecated ICU 2.4. Use U8_LENGTH or test ((uint32_t)(c)>0x7f) instead, see utf_old.h. */
+#define UTF8_NEED_MULTIPLE_UCHAR(c) ((uint32_t)(c)>0x7f)
+
+/**
+ * Given the lead character, how many bytes are taken by this code point.
+ * ICU does not deal with code points >0x10ffff
+ * unless necessary for advancing in the byte stream.
+ *
+ * These length macros take into account that for values >0x10ffff
+ * the UTF8_APPEND_CHAR_SAFE macros would write the error code point 0xffff
+ * with 3 bytes.
+ * Code point comparisons need to be in uint32_t because UChar32
+ * may be a signed type, and negative values must be recognized.
+ *
+ * @deprecated ICU 2.4. Use U8_LENGTH instead, see utf.h.
+ */
+#if 1
+#   define UTF8_CHAR_LENGTH(c) \
+        ((uint32_t)(c)<=0x7f ? 1 : \
+            ((uint32_t)(c)<=0x7ff ? 2 : \
+                ((uint32_t)((c)-0x10000)>0xfffff ? 3 : 4) \
+            ) \
+        )
+#else
+#   define UTF8_CHAR_LENGTH(c) \
+        ((uint32_t)(c)<=0x7f ? 1 : \
+            ((uint32_t)(c)<=0x7ff ? 2 : \
+                ((uint32_t)(c)<=0xffff ? 3 : \
+                    ((uint32_t)(c)<=0x10ffff ? 4 : \
+                        ((uint32_t)(c)<=0x3ffffff ? 5 : \
+                            ((uint32_t)(c)<=0x7fffffff ? 6 : 3) \
+                        ) \
+                    ) \
+                ) \
+            ) \
+        )
+#endif
+
+/** The maximum number of bytes per code point. @deprecated ICU 2.4. Renamed to U8_MAX_LENGTH, see utf_old.h. */
+#define UTF8_MAX_CHAR_LENGTH 4
+
+/** Average number of code units compared to UTF-16. @deprecated ICU 2.4. Obsolete, see utf_old.h. */
+#define UTF8_ARRAY_SIZE(size) ((5*(size))/2)
+
+/** @deprecated ICU 2.4. Renamed to U8_GET_UNSAFE, see utf_old.h. */
+#define UTF8_GET_CHAR_UNSAFE(s, i, c) { \
+    int32_t _utf8_get_char_unsafe_index=(int32_t)(i); \
+    UTF8_SET_CHAR_START_UNSAFE(s, _utf8_get_char_unsafe_index); \
+    UTF8_NEXT_CHAR_UNSAFE(s, _utf8_get_char_unsafe_index, c); \
+}
+
+/** @deprecated ICU 2.4. Use U8_GET instead, see utf_old.h. */
+#define UTF8_GET_CHAR_SAFE(s, start, i, length, c, strict) { \
+    int32_t _utf8_get_char_safe_index=(int32_t)(i); \
+    UTF8_SET_CHAR_START_SAFE(s, start, _utf8_get_char_safe_index); \
+    UTF8_NEXT_CHAR_SAFE(s, _utf8_get_char_safe_index, length, c, strict); \
+}
+
+/** @deprecated ICU 2.4. Renamed to U8_NEXT_UNSAFE, see utf_old.h. */
+#define UTF8_NEXT_CHAR_UNSAFE(s, i, c) { \
+    (c)=(s)[(i)++]; \
+    if((uint8_t)((c)-0xc0)<0x35) { \
+        uint8_t __count=UTF8_COUNT_TRAIL_BYTES(c); \
+        UTF8_MASK_LEAD_BYTE(c, __count); \
+        switch(__count) { \
+        /* each following branch falls through to the next one */ \
+        case 3: \
+            (c)=((c)<<6)|((s)[(i)++]&0x3f); \
+        case 2: \
+            (c)=((c)<<6)|((s)[(i)++]&0x3f); \
+        case 1: \
+            (c)=((c)<<6)|((s)[(i)++]&0x3f); \
+        /* no other branches to optimize switch() */ \
+            break; \
+        } \
+    } \
+}
+
+/** @deprecated ICU 2.4. Renamed to U8_APPEND_UNSAFE, see utf_old.h. */
+#define UTF8_APPEND_CHAR_UNSAFE(s, i, c) { \
+    if((uint32_t)(c)<=0x7f) { \
+        (s)[(i)++]=(uint8_t)(c); \
+    } else { \
+        if((uint32_t)(c)<=0x7ff) { \
+            (s)[(i)++]=(uint8_t)(((c)>>6)|0xc0); \
+        } else { \
+            if((uint32_t)(c)<=0xffff) { \
+                (s)[(i)++]=(uint8_t)(((c)>>12)|0xe0); \
+            } else { \
+                (s)[(i)++]=(uint8_t)(((c)>>18)|0xf0); \
+                (s)[(i)++]=(uint8_t)((((c)>>12)&0x3f)|0x80); \
+            } \
+            (s)[(i)++]=(uint8_t)((((c)>>6)&0x3f)|0x80); \
+        } \
+        (s)[(i)++]=(uint8_t)(((c)&0x3f)|0x80); \
+    } \
+}
+
+/** @deprecated ICU 2.4. Renamed to U8_FWD_1_UNSAFE, see utf_old.h. */
+#define UTF8_FWD_1_UNSAFE(s, i) { \
+    (i)+=1+UTF8_COUNT_TRAIL_BYTES((s)[i]); \
+}
+
+/** @deprecated ICU 2.4. Renamed to U8_FWD_N_UNSAFE, see utf_old.h. */
+#define UTF8_FWD_N_UNSAFE(s, i, n) { \
+    int32_t __N=(n); \
+    while(__N>0) { \
+        UTF8_FWD_1_UNSAFE(s, i); \
+        --__N; \
+    } \
+}
+
+/** @deprecated ICU 2.4. Renamed to U8_SET_CP_START_UNSAFE, see utf_old.h. */
+#define UTF8_SET_CHAR_START_UNSAFE(s, i) { \
+    while(UTF8_IS_TRAIL((s)[i])) { --(i); } \
+}
+
+/** @deprecated ICU 2.4. Use U8_NEXT instead, see utf_old.h. */
+#define UTF8_NEXT_CHAR_SAFE(s, i, length, c, strict) { \
+    (c)=(s)[(i)++]; \
+    if((c)>=0x80) { \
+        if(UTF8_IS_LEAD(c)) { \
+            (c)=utf8_nextCharSafeBody(s, &(i), (int32_t)(length), c, strict); \
+        } else { \
+            (c)=UTF8_ERROR_VALUE_1; \
+        } \
+    } \
+}
+
+/** @deprecated ICU 2.4. Use U8_APPEND instead, see utf_old.h. */
+#define UTF8_APPEND_CHAR_SAFE(s, i, length, c)  { \
+    if((uint32_t)(c)<=0x7f) { \
+        (s)[(i)++]=(uint8_t)(c); \
+    } else { \
+        (i)=utf8_appendCharSafeBody(s, (int32_t)(i), (int32_t)(length), c, NULL); \
+    } \
+}
+
+/** @deprecated ICU 2.4. Renamed to U8_FWD_1, see utf_old.h. */
+#define UTF8_FWD_1_SAFE(s, i, length) U8_FWD_1(s, i, length)
+
+/** @deprecated ICU 2.4. Renamed to U8_FWD_N, see utf_old.h. */
+#define UTF8_FWD_N_SAFE(s, i, length, n) U8_FWD_N(s, i, length, n)
+
+/** @deprecated ICU 2.4. Renamed to U8_SET_CP_START, see utf_old.h. */
+#define UTF8_SET_CHAR_START_SAFE(s, start, i) U8_SET_CP_START(s, start, i)
+
+/** @deprecated ICU 2.4. Renamed to U8_PREV_UNSAFE, see utf_old.h. */
+#define UTF8_PREV_CHAR_UNSAFE(s, i, c) { \
+    (c)=(s)[--(i)]; \
+    if(UTF8_IS_TRAIL(c)) { \
+        uint8_t __b, __count=1, __shift=6; \
+\
+        /* c is a trail byte */ \
+        (c)&=0x3f; \
+        for(;;) { \
+            __b=(s)[--(i)]; \
+            if(__b>=0xc0) { \
+                UTF8_MASK_LEAD_BYTE(__b, __count); \
+                (c)|=(UChar32)__b<<__shift; \
+                break; \
+            } else { \
+                (c)|=(UChar32)(__b&0x3f)<<__shift; \
+                ++__count; \
+                __shift+=6; \
+            } \
+        } \
+    } \
+}
+
+/** @deprecated ICU 2.4. Renamed to U8_BACK_1_UNSAFE, see utf_old.h. */
+#define UTF8_BACK_1_UNSAFE(s, i) { \
+    while(UTF8_IS_TRAIL((s)[--(i)])) {} \
+}
+
+/** @deprecated ICU 2.4. Renamed to U8_BACK_N_UNSAFE, see utf_old.h. */
+#define UTF8_BACK_N_UNSAFE(s, i, n) { \
+    int32_t __N=(n); \
+    while(__N>0) { \
+        UTF8_BACK_1_UNSAFE(s, i); \
+        --__N; \
+    } \
+}
+
+/** @deprecated ICU 2.4. Renamed to U8_SET_CP_LIMIT_UNSAFE, see utf_old.h. */
+#define UTF8_SET_CHAR_LIMIT_UNSAFE(s, i) { \
+    UTF8_BACK_1_UNSAFE(s, i); \
+    UTF8_FWD_1_UNSAFE(s, i); \
+}
+
+/** @deprecated ICU 2.4. Use U8_PREV instead, see utf_old.h. */
+#define UTF8_PREV_CHAR_SAFE(s, start, i, c, strict) { \
+    (c)=(s)[--(i)]; \
+    if((c)>=0x80) { \
+        if((c)<=0xbf) { \
+            (c)=utf8_prevCharSafeBody(s, start, &(i), c, strict); \
+        } else { \
+            (c)=UTF8_ERROR_VALUE_1; \
+        } \
+    } \
+}
+
+/** @deprecated ICU 2.4. Renamed to U8_BACK_1, see utf_old.h. */
+#define UTF8_BACK_1_SAFE(s, start, i) U8_BACK_1(s, start, i)
+
+/** @deprecated ICU 2.4. Renamed to U8_BACK_N, see utf_old.h. */
+#define UTF8_BACK_N_SAFE(s, start, i, n) U8_BACK_N(s, start, i, n)
+
+/** @deprecated ICU 2.4. Renamed to U8_SET_CP_LIMIT, see utf_old.h. */
+#define UTF8_SET_CHAR_LIMIT_SAFE(s, start, i, length) U8_SET_CP_LIMIT(s, start, i, length)
+
+/* Formerly utf16.h --------------------------------------------------------- */
+
+/** Is uchar a first/lead surrogate? @deprecated ICU 2.4. Renamed to U_IS_LEAD and U16_IS_LEAD, see utf_old.h. */
+#define UTF_IS_FIRST_SURROGATE(uchar) (((uchar)&0xfffffc00)==0xd800)
+
+/** Is uchar a second/trail surrogate? @deprecated ICU 2.4. Renamed to U_IS_TRAIL and U16_IS_TRAIL, see utf_old.h. */
+#define UTF_IS_SECOND_SURROGATE(uchar) (((uchar)&0xfffffc00)==0xdc00)
+
+/** Assuming c is a surrogate, is it a first/lead surrogate? @deprecated ICU 2.4. Renamed to U_IS_SURROGATE_LEAD and U16_IS_SURROGATE_LEAD, see utf_old.h. */
+#define UTF_IS_SURROGATE_FIRST(c) (((c)&0x400)==0)
+
+/** Helper constant for UTF16_GET_PAIR_VALUE. @deprecated ICU 2.4. Renamed to U16_SURROGATE_OFFSET, see utf_old.h. */
+#define UTF_SURROGATE_OFFSET ((0xd800<<10UL)+0xdc00-0x10000)
+
+/** Get the UTF-32 value from the surrogate code units. @deprecated ICU 2.4. Renamed to U16_GET_SUPPLEMENTARY, see utf_old.h. */
+#define UTF16_GET_PAIR_VALUE(first, second) \
+    (((first)<<10UL)+(second)-UTF_SURROGATE_OFFSET)
+
+/** @deprecated ICU 2.4. Renamed to U16_LEAD, see utf_old.h. */
+#define UTF_FIRST_SURROGATE(supplementary) (UChar)(((supplementary)>>10)+0xd7c0)
+
+/** @deprecated ICU 2.4. Renamed to U16_TRAIL, see utf_old.h. */
+#define UTF_SECOND_SURROGATE(supplementary) (UChar)(((supplementary)&0x3ff)|0xdc00)
+
+/** @deprecated ICU 2.4. Renamed to U16_LEAD, see utf_old.h. */
+#define UTF16_LEAD(supplementary) UTF_FIRST_SURROGATE(supplementary)
+
+/** @deprecated ICU 2.4. Renamed to U16_TRAIL, see utf_old.h. */
+#define UTF16_TRAIL(supplementary) UTF_SECOND_SURROGATE(supplementary)
+
+/** @deprecated ICU 2.4. Renamed to U16_IS_SINGLE, see utf_old.h. */
+#define UTF16_IS_SINGLE(uchar) !UTF_IS_SURROGATE(uchar)
+
+/** @deprecated ICU 2.4. Renamed to U16_IS_LEAD, see utf_old.h. */
+#define UTF16_IS_LEAD(uchar) UTF_IS_FIRST_SURROGATE(uchar)
+
+/** @deprecated ICU 2.4. Renamed to U16_IS_TRAIL, see utf_old.h. */
+#define UTF16_IS_TRAIL(uchar) UTF_IS_SECOND_SURROGATE(uchar)
+
+/** Does this scalar Unicode value need multiple code units for storage? @deprecated ICU 2.4. Use U16_LENGTH or test ((uint32_t)(c)>0xffff) instead, see utf_old.h. */
+#define UTF16_NEED_MULTIPLE_UCHAR(c) ((uint32_t)(c)>0xffff)
+
+/** @deprecated ICU 2.4. Renamed to U16_LENGTH, see utf_old.h. */
+#define UTF16_CHAR_LENGTH(c) ((uint32_t)(c)<=0xffff ? 1 : 2)
+
+/** @deprecated ICU 2.4. Renamed to U16_MAX_LENGTH, see utf_old.h. */
+#define UTF16_MAX_CHAR_LENGTH 2
+
+/** Average number of code units compared to UTF-16. @deprecated ICU 2.4. Obsolete, see utf_old.h. */
+#define UTF16_ARRAY_SIZE(size) (size)
+
+/**
+ * Get a single code point from an offset that points to any
+ * of the code units that belong to that code point.
+ * Assume 0<=i<length.
+ *
+ * This could be used for iteration together with
+ * UTF16_CHAR_LENGTH() and UTF_IS_ERROR(),
+ * but the use of UTF16_NEXT_CHAR[_UNSAFE]() and
+ * UTF16_PREV_CHAR[_UNSAFE]() is more efficient for that.
+ * @deprecated ICU 2.4. Renamed to U16_GET_UNSAFE, see utf_old.h.
+ */
+#define UTF16_GET_CHAR_UNSAFE(s, i, c) { \
+    (c)=(s)[i]; \
+    if(UTF_IS_SURROGATE(c)) { \
+        if(UTF_IS_SURROGATE_FIRST(c)) { \
+            (c)=UTF16_GET_PAIR_VALUE((c), (s)[(i)+1]); \
+        } else { \
+            (c)=UTF16_GET_PAIR_VALUE((s)[(i)-1], (c)); \
+        } \
+    } \
+}
+
+/** @deprecated ICU 2.4. Use U16_GET instead, see utf_old.h. */
+#define UTF16_GET_CHAR_SAFE(s, start, i, length, c, strict) { \
+    (c)=(s)[i]; \
+    if(UTF_IS_SURROGATE(c)) { \
+        uint16_t __c2; \
+        if(UTF_IS_SURROGATE_FIRST(c)) { \
+            if((i)+1<(length) && UTF_IS_SECOND_SURROGATE(__c2=(s)[(i)+1])) { \
+                (c)=UTF16_GET_PAIR_VALUE((c), __c2); \
+                /* strict: ((c)&0xfffe)==0xfffe is caught by UTF_IS_ERROR() and UTF_IS_UNICODE_CHAR() */ \
+            } else if(strict) {\
+                /* unmatched first surrogate */ \
+                (c)=UTF_ERROR_VALUE; \
+            } \
+        } else { \
+            if((i)-1>=(start) && UTF_IS_FIRST_SURROGATE(__c2=(s)[(i)-1])) { \
+                (c)=UTF16_GET_PAIR_VALUE(__c2, (c)); \
+                /* strict: ((c)&0xfffe)==0xfffe is caught by UTF_IS_ERROR() and UTF_IS_UNICODE_CHAR() */ \
+            } else if(strict) {\
+                /* unmatched second surrogate */ \
+                (c)=UTF_ERROR_VALUE; \
+            } \
+        } \
+    } else if((strict) && !UTF_IS_UNICODE_CHAR(c)) { \
+        (c)=UTF_ERROR_VALUE; \
+    } \
+}
+
+/** @deprecated ICU 2.4. Renamed to U16_NEXT_UNSAFE, see utf_old.h. */
+#define UTF16_NEXT_CHAR_UNSAFE(s, i, c) { \
+    (c)=(s)[(i)++]; \
+    if(UTF_IS_FIRST_SURROGATE(c)) { \
+        (c)=UTF16_GET_PAIR_VALUE((c), (s)[(i)++]); \
+    } \
+}
+
+/** @deprecated ICU 2.4. Renamed to U16_APPEND_UNSAFE, see utf_old.h. */
+#define UTF16_APPEND_CHAR_UNSAFE(s, i, c) { \
+    if((uint32_t)(c)<=0xffff) { \
+        (s)[(i)++]=(uint16_t)(c); \
+    } else { \
+        (s)[(i)++]=(uint16_t)(((c)>>10)+0xd7c0); \
+        (s)[(i)++]=(uint16_t)(((c)&0x3ff)|0xdc00); \
+    } \
+}
+
+/** @deprecated ICU 2.4. Renamed to U16_FWD_1_UNSAFE, see utf_old.h. */
+#define UTF16_FWD_1_UNSAFE(s, i) { \
+    if(UTF_IS_FIRST_SURROGATE((s)[(i)++])) { \
+        ++(i); \
+    } \
+}
+
+/** @deprecated ICU 2.4. Renamed to U16_FWD_N_UNSAFE, see utf_old.h. */
+#define UTF16_FWD_N_UNSAFE(s, i, n) { \
+    int32_t __N=(n); \
+    while(__N>0) { \
+        UTF16_FWD_1_UNSAFE(s, i); \
+        --__N; \
+    } \
+}
+
+/** @deprecated ICU 2.4. Renamed to U16_SET_CP_START_UNSAFE, see utf_old.h. */
+#define UTF16_SET_CHAR_START_UNSAFE(s, i) { \
+    if(UTF_IS_SECOND_SURROGATE((s)[i])) { \
+        --(i); \
+    } \
+}
+
+/** @deprecated ICU 2.4. Use U16_NEXT instead, see utf_old.h. */
+#define UTF16_NEXT_CHAR_SAFE(s, i, length, c, strict) { \
+    (c)=(s)[(i)++]; \
+    if(UTF_IS_FIRST_SURROGATE(c)) { \
+        uint16_t __c2; \
+        if((i)<(length) && UTF_IS_SECOND_SURROGATE(__c2=(s)[(i)])) { \
+            ++(i); \
+            (c)=UTF16_GET_PAIR_VALUE((c), __c2); \
+            /* strict: ((c)&0xfffe)==0xfffe is caught by UTF_IS_ERROR() and UTF_IS_UNICODE_CHAR() */ \
+        } else if(strict) {\
+            /* unmatched first surrogate */ \
+            (c)=UTF_ERROR_VALUE; \
+        } \
+    } else if((strict) && !UTF_IS_UNICODE_CHAR(c)) { \
+        /* unmatched second surrogate or other non-character */ \
+        (c)=UTF_ERROR_VALUE; \
+    } \
+}
+
+/** @deprecated ICU 2.4. Use U16_APPEND instead, see utf_old.h. */
+#define UTF16_APPEND_CHAR_SAFE(s, i, length, c) { \
+    if((uint32_t)(c)<=0xffff) { \
+        (s)[(i)++]=(uint16_t)(c); \
+    } else if((uint32_t)(c)<=0x10ffff) { \
+        if((i)+1<(length)) { \
+            (s)[(i)++]=(uint16_t)(((c)>>10)+0xd7c0); \
+            (s)[(i)++]=(uint16_t)(((c)&0x3ff)|0xdc00); \
+        } else /* not enough space */ { \
+            (s)[(i)++]=UTF_ERROR_VALUE; \
+        } \
+    } else /* c>0x10ffff, write error value */ { \
+        (s)[(i)++]=UTF_ERROR_VALUE; \
+    } \
+}
+
+/** @deprecated ICU 2.4. Renamed to U16_FWD_1, see utf_old.h. */
+#define UTF16_FWD_1_SAFE(s, i, length) U16_FWD_1(s, i, length)
+
+/** @deprecated ICU 2.4. Renamed to U16_FWD_N, see utf_old.h. */
+#define UTF16_FWD_N_SAFE(s, i, length, n) U16_FWD_N(s, i, length, n)
+
+/** @deprecated ICU 2.4. Renamed to U16_SET_CP_START, see utf_old.h. */
+#define UTF16_SET_CHAR_START_SAFE(s, start, i) U16_SET_CP_START(s, start, i)
+
+/** @deprecated ICU 2.4. Renamed to U16_PREV_UNSAFE, see utf_old.h. */
+#define UTF16_PREV_CHAR_UNSAFE(s, i, c) { \
+    (c)=(s)[--(i)]; \
+    if(UTF_IS_SECOND_SURROGATE(c)) { \
+        (c)=UTF16_GET_PAIR_VALUE((s)[--(i)], (c)); \
+    } \
+}
+
+/** @deprecated ICU 2.4. Renamed to U16_BACK_1_UNSAFE, see utf_old.h. */
+#define UTF16_BACK_1_UNSAFE(s, i) { \
+    if(UTF_IS_SECOND_SURROGATE((s)[--(i)])) { \
+        --(i); \
+    } \
+}
+
+/** @deprecated ICU 2.4. Renamed to U16_BACK_N_UNSAFE, see utf_old.h. */
+#define UTF16_BACK_N_UNSAFE(s, i, n) { \
+    int32_t __N=(n); \
+    while(__N>0) { \
+        UTF16_BACK_1_UNSAFE(s, i); \
+        --__N; \
+    } \
+}
+
+/** @deprecated ICU 2.4. Renamed to U16_SET_CP_LIMIT_UNSAFE, see utf_old.h. */
+#define UTF16_SET_CHAR_LIMIT_UNSAFE(s, i) { \
+    if(UTF_IS_FIRST_SURROGATE((s)[(i)-1])) { \
+        ++(i); \
+    } \
+}
+
+/** @deprecated ICU 2.4. Use U16_PREV instead, see utf_old.h. */
+#define UTF16_PREV_CHAR_SAFE(s, start, i, c, strict) { \
+    (c)=(s)[--(i)]; \
+    if(UTF_IS_SECOND_SURROGATE(c)) { \
+        uint16_t __c2; \
+        if((i)>(start) && UTF_IS_FIRST_SURROGATE(__c2=(s)[(i)-1])) { \
+            --(i); \
+            (c)=UTF16_GET_PAIR_VALUE(__c2, (c)); \
+            /* strict: ((c)&0xfffe)==0xfffe is caught by UTF_IS_ERROR() and UTF_IS_UNICODE_CHAR() */ \
+        } else if(strict) {\
+            /* unmatched second surrogate */ \
+            (c)=UTF_ERROR_VALUE; \
+        } \
+    } else if((strict) && !UTF_IS_UNICODE_CHAR(c)) { \
+        /* unmatched first surrogate or other non-character */ \
+        (c)=UTF_ERROR_VALUE; \
+    } \
+}
+
+/** @deprecated ICU 2.4. Renamed to U16_BACK_1, see utf_old.h. */
+#define UTF16_BACK_1_SAFE(s, start, i) U16_BACK_1(s, start, i)
+
+/** @deprecated ICU 2.4. Renamed to U16_BACK_N, see utf_old.h. */
+#define UTF16_BACK_N_SAFE(s, start, i, n) U16_BACK_N(s, start, i, n)
+
+/** @deprecated ICU 2.4. Renamed to U16_SET_CP_LIMIT, see utf_old.h. */
+#define UTF16_SET_CHAR_LIMIT_SAFE(s, start, i, length) U16_SET_CP_LIMIT(s, start, i, length)
+
+/* Formerly utf32.h --------------------------------------------------------- */
+
+/*
+* Old documentation:
+*
+*   This file defines macros to deal with UTF-32 code units and code points.
+*   Signatures and semantics are the same as for the similarly named macros
+*   in utf16.h.
+*   utf32.h is included by utf.h after unicode/umachine.h</p>
+*   and some common definitions.
+*   <p><b>Usage:</b>  ICU coding guidelines for if() statements should be followed when using these macros.
+*                  Compound statements (curly braces {}) must be used  for if-else-while...
+*                  bodies and all macro statements should be terminated with semicolon.</p>
+*/
+
+/* internal definitions ----------------------------------------------------- */
+
+/** @deprecated ICU 2.4. Obsolete, see utf_old.h. */
+#define UTF32_IS_SAFE(c, strict) \
+    (!(strict) ? \
+        (uint32_t)(c)<=0x10ffff : \
+        UTF_IS_UNICODE_CHAR(c))
+
+/*
+ * For the semantics of all of these macros, see utf16.h.
+ * The UTF-32 versions are trivial because any code point is
+ * encoded using exactly one code unit.
+ */
+
+/* single-code point definitions -------------------------------------------- */
+
+/* classes of code unit values */
+
+/** @deprecated ICU 2.4. Obsolete, see utf_old.h. */
+#define UTF32_IS_SINGLE(uchar) 1
+/** @deprecated ICU 2.4. Obsolete, see utf_old.h. */
+#define UTF32_IS_LEAD(uchar) 0
+/** @deprecated ICU 2.4. Obsolete, see utf_old.h. */
+#define UTF32_IS_TRAIL(uchar) 0
+
+/* number of code units per code point */
+
+/** @deprecated ICU 2.4. Obsolete, see utf_old.h. */
+#define UTF32_NEED_MULTIPLE_UCHAR(c) 0
+/** @deprecated ICU 2.4. Obsolete, see utf_old.h. */
+#define UTF32_CHAR_LENGTH(c) 1
+/** @deprecated ICU 2.4. Obsolete, see utf_old.h. */
+#define UTF32_MAX_CHAR_LENGTH 1
+
+/* average number of code units compared to UTF-16 */
+
+/** @deprecated ICU 2.4. Obsolete, see utf_old.h. */
+#define UTF32_ARRAY_SIZE(size) (size)
+
+/** @deprecated ICU 2.4. Obsolete, see utf_old.h. */
+#define UTF32_GET_CHAR_UNSAFE(s, i, c) { \
+    (c)=(s)[i]; \
+}
+
+/** @deprecated ICU 2.4. Obsolete, see utf_old.h. */
+#define UTF32_GET_CHAR_SAFE(s, start, i, length, c, strict) { \
+    (c)=(s)[i]; \
+    if(!UTF32_IS_SAFE(c, strict)) { \
+        (c)=UTF_ERROR_VALUE; \
+    } \
+}
+
+/* definitions with forward iteration --------------------------------------- */
+
+/** @deprecated ICU 2.4. Obsolete, see utf_old.h. */
+#define UTF32_NEXT_CHAR_UNSAFE(s, i, c) { \
+    (c)=(s)[(i)++]; \
+}
+
+/** @deprecated ICU 2.4. Obsolete, see utf_old.h. */
+#define UTF32_APPEND_CHAR_UNSAFE(s, i, c) { \
+    (s)[(i)++]=(c); \
+}
+
+/** @deprecated ICU 2.4. Obsolete, see utf_old.h. */
+#define UTF32_FWD_1_UNSAFE(s, i) { \
+    ++(i); \
+}
+
+/** @deprecated ICU 2.4. Obsolete, see utf_old.h. */
+#define UTF32_FWD_N_UNSAFE(s, i, n) { \
+    (i)+=(n); \
+}
+
+/** @deprecated ICU 2.4. Obsolete, see utf_old.h. */
+#define UTF32_SET_CHAR_START_UNSAFE(s, i) { \
+}
+
+/** @deprecated ICU 2.4. Obsolete, see utf_old.h. */
+#define UTF32_NEXT_CHAR_SAFE(s, i, length, c, strict) { \
+    (c)=(s)[(i)++]; \
+    if(!UTF32_IS_SAFE(c, strict)) { \
+        (c)=UTF_ERROR_VALUE; \
+    } \
+}
+
+/** @deprecated ICU 2.4. Obsolete, see utf_old.h. */
+#define UTF32_APPEND_CHAR_SAFE(s, i, length, c) { \
+    if((uint32_t)(c)<=0x10ffff) { \
+        (s)[(i)++]=(c); \
+    } else /* c>0x10ffff, write 0xfffd */ { \
+        (s)[(i)++]=0xfffd; \
+    } \
+}
+
+/** @deprecated ICU 2.4. Obsolete, see utf_old.h. */
+#define UTF32_FWD_1_SAFE(s, i, length) { \
+    ++(i); \
+}
+
+/** @deprecated ICU 2.4. Obsolete, see utf_old.h. */
+#define UTF32_FWD_N_SAFE(s, i, length, n) { \
+    if(((i)+=(n))>(length)) { \
+        (i)=(length); \
+    } \
+}
+
+/** @deprecated ICU 2.4. Obsolete, see utf_old.h. */
+#define UTF32_SET_CHAR_START_SAFE(s, start, i) { \
+}
+
+/* definitions with backward iteration -------------------------------------- */
+
+/** @deprecated ICU 2.4. Obsolete, see utf_old.h. */
+#define UTF32_PREV_CHAR_UNSAFE(s, i, c) { \
+    (c)=(s)[--(i)]; \
+}
+
+/** @deprecated ICU 2.4. Obsolete, see utf_old.h. */
+#define UTF32_BACK_1_UNSAFE(s, i) { \
+    --(i); \
+}
+
+/** @deprecated ICU 2.4. Obsolete, see utf_old.h. */
+#define UTF32_BACK_N_UNSAFE(s, i, n) { \
+    (i)-=(n); \
+}
+
+/** @deprecated ICU 2.4. Obsolete, see utf_old.h. */
+#define UTF32_SET_CHAR_LIMIT_UNSAFE(s, i) { \
+}
+
+/** @deprecated ICU 2.4. Obsolete, see utf_old.h. */
+#define UTF32_PREV_CHAR_SAFE(s, start, i, c, strict) { \
+    (c)=(s)[--(i)]; \
+    if(!UTF32_IS_SAFE(c, strict)) { \
+        (c)=UTF_ERROR_VALUE; \
+    } \
+}
+
+/** @deprecated ICU 2.4. Obsolete, see utf_old.h. */
+#define UTF32_BACK_1_SAFE(s, start, i) { \
+    --(i); \
+}
+
+/** @deprecated ICU 2.4. Obsolete, see utf_old.h. */
+#define UTF32_BACK_N_SAFE(s, start, i, n) { \
+    (i)-=(n); \
+    if((i)<(start)) { \
+        (i)=(start); \
+    } \
+}
+
+/** @deprecated ICU 2.4. Obsolete, see utf_old.h. */
+#define UTF32_SET_CHAR_LIMIT_SAFE(s, i, length) { \
+}
+
+/* Formerly utf.h, part 2 --------------------------------------------------- */
+
+/**
+ * Estimate the number of code units for a string based on the number of UTF-16 code units.
+ *
+ * @deprecated ICU 2.4. Obsolete, see utf_old.h.
+ */
+#define UTF_ARRAY_SIZE(size) UTF16_ARRAY_SIZE(size)
+
+/** @deprecated ICU 2.4. Renamed to U16_GET_UNSAFE, see utf_old.h. */
+#define UTF_GET_CHAR_UNSAFE(s, i, c)                 UTF16_GET_CHAR_UNSAFE(s, i, c)
+
+/** @deprecated ICU 2.4. Use U16_GET instead, see utf_old.h. */
+#define UTF_GET_CHAR_SAFE(s, start, i, length, c, strict) UTF16_GET_CHAR_SAFE(s, start, i, length, c, strict)
+
+
+/** @deprecated ICU 2.4. Renamed to U16_NEXT_UNSAFE, see utf_old.h. */
+#define UTF_NEXT_CHAR_UNSAFE(s, i, c)                UTF16_NEXT_CHAR_UNSAFE(s, i, c)
+
+/** @deprecated ICU 2.4. Use U16_NEXT instead, see utf_old.h. */
+#define UTF_NEXT_CHAR_SAFE(s, i, length, c, strict)  UTF16_NEXT_CHAR_SAFE(s, i, length, c, strict)
+
+
+/** @deprecated ICU 2.4. Renamed to U16_APPEND_UNSAFE, see utf_old.h. */
+#define UTF_APPEND_CHAR_UNSAFE(s, i, c)              UTF16_APPEND_CHAR_UNSAFE(s, i, c)
+
+/** @deprecated ICU 2.4. Use U16_APPEND instead, see utf_old.h. */
+#define UTF_APPEND_CHAR_SAFE(s, i, length, c)        UTF16_APPEND_CHAR_SAFE(s, i, length, c)
+
+
+/** @deprecated ICU 2.4. Renamed to U16_FWD_1_UNSAFE, see utf_old.h. */
+#define UTF_FWD_1_UNSAFE(s, i)                       UTF16_FWD_1_UNSAFE(s, i)
+
+/** @deprecated ICU 2.4. Renamed to U16_FWD_1, see utf_old.h. */
+#define UTF_FWD_1_SAFE(s, i, length)                 UTF16_FWD_1_SAFE(s, i, length)
+
+
+/** @deprecated ICU 2.4. Renamed to U16_FWD_N_UNSAFE, see utf_old.h. */
+#define UTF_FWD_N_UNSAFE(s, i, n)                    UTF16_FWD_N_UNSAFE(s, i, n)
+
+/** @deprecated ICU 2.4. Renamed to U16_FWD_N, see utf_old.h. */
+#define UTF_FWD_N_SAFE(s, i, length, n)              UTF16_FWD_N_SAFE(s, i, length, n)
+
+
+/** @deprecated ICU 2.4. Renamed to U16_SET_CP_START_UNSAFE, see utf_old.h. */
+#define UTF_SET_CHAR_START_UNSAFE(s, i)              UTF16_SET_CHAR_START_UNSAFE(s, i)
+
+/** @deprecated ICU 2.4. Renamed to U16_SET_CP_START, see utf_old.h. */
+#define UTF_SET_CHAR_START_SAFE(s, start, i)         UTF16_SET_CHAR_START_SAFE(s, start, i)
+
+
+/** @deprecated ICU 2.4. Renamed to U16_PREV_UNSAFE, see utf_old.h. */
+#define UTF_PREV_CHAR_UNSAFE(s, i, c)                UTF16_PREV_CHAR_UNSAFE(s, i, c)
+
+/** @deprecated ICU 2.4. Use U16_PREV instead, see utf_old.h. */
+#define UTF_PREV_CHAR_SAFE(s, start, i, c, strict)   UTF16_PREV_CHAR_SAFE(s, start, i, c, strict)
+
+
+/** @deprecated ICU 2.4. Renamed to U16_BACK_1_UNSAFE, see utf_old.h. */
+#define UTF_BACK_1_UNSAFE(s, i)                      UTF16_BACK_1_UNSAFE(s, i)
+
+/** @deprecated ICU 2.4. Renamed to U16_BACK_1, see utf_old.h. */
+#define UTF_BACK_1_SAFE(s, start, i)                 UTF16_BACK_1_SAFE(s, start, i)
+
+
+/** @deprecated ICU 2.4. Renamed to U16_BACK_N_UNSAFE, see utf_old.h. */
+#define UTF_BACK_N_UNSAFE(s, i, n)                   UTF16_BACK_N_UNSAFE(s, i, n)
+
+/** @deprecated ICU 2.4. Renamed to U16_BACK_N, see utf_old.h. */
+#define UTF_BACK_N_SAFE(s, start, i, n)              UTF16_BACK_N_SAFE(s, start, i, n)
+
+
+/** @deprecated ICU 2.4. Renamed to U16_SET_CP_LIMIT_UNSAFE, see utf_old.h. */
+#define UTF_SET_CHAR_LIMIT_UNSAFE(s, i)              UTF16_SET_CHAR_LIMIT_UNSAFE(s, i)
+
+/** @deprecated ICU 2.4. Renamed to U16_SET_CP_LIMIT, see utf_old.h. */
+#define UTF_SET_CHAR_LIMIT_SAFE(s, start, i, length) UTF16_SET_CHAR_LIMIT_SAFE(s, start, i, length)
+
+/* Define default macros (UTF-16 "safe") ------------------------------------ */
+
+/**
+ * Does this code unit alone encode a code point (BMP, not a surrogate)?
+ * Same as UTF16_IS_SINGLE.
+ * @deprecated ICU 2.4. Renamed to U_IS_SINGLE and U16_IS_SINGLE, see utf_old.h.
+ */
+#define UTF_IS_SINGLE(uchar) U16_IS_SINGLE(uchar)
+
+/**
+ * Is this code unit the first one of several (a lead surrogate)?
+ * Same as UTF16_IS_LEAD.
+ * @deprecated ICU 2.4. Renamed to U_IS_LEAD and U16_IS_LEAD, see utf_old.h.
+ */
+#define UTF_IS_LEAD(uchar) U16_IS_LEAD(uchar)
+
+/**
+ * Is this code unit one of several but not the first one (a trail surrogate)?
+ * Same as UTF16_IS_TRAIL.
+ * @deprecated ICU 2.4. Renamed to U_IS_TRAIL and U16_IS_TRAIL, see utf_old.h.
+ */
+#define UTF_IS_TRAIL(uchar) U16_IS_TRAIL(uchar)
+
+/**
+ * Does this code point require multiple code units (is it a supplementary code point)?
+ * Same as UTF16_NEED_MULTIPLE_UCHAR.
+ * @deprecated ICU 2.4. Use U16_LENGTH or test ((uint32_t)(c)>0xffff) instead.
+ */
+#define UTF_NEED_MULTIPLE_UCHAR(c) UTF16_NEED_MULTIPLE_UCHAR(c)
+
+/**
+ * How many code units are used to encode this code point (1 or 2)?
+ * Same as UTF16_CHAR_LENGTH.
+ * @deprecated ICU 2.4. Renamed to U16_LENGTH, see utf_old.h.
+ */
+#define UTF_CHAR_LENGTH(c) U16_LENGTH(c)
+
+/**
+ * How many code units are used at most for any Unicode code point (2)?
+ * Same as UTF16_MAX_CHAR_LENGTH.
+ * @deprecated ICU 2.4. Renamed to U16_MAX_LENGTH, see utf_old.h.
+ */
+#define UTF_MAX_CHAR_LENGTH U16_MAX_LENGTH
+
+/**
+ * Set c to the code point that contains the code unit i.
+ * i could point to the lead or the trail surrogate for the code point.
+ * i is not modified.
+ * Same as UTF16_GET_CHAR.
+ * \pre 0<=i<length
+ *
+ * @deprecated ICU 2.4. Renamed to U16_GET, see utf_old.h.
+ */
+#define UTF_GET_CHAR(s, start, i, length, c) U16_GET(s, start, i, length, c)
+
+/**
+ * Set c to the code point that starts at code unit i
+ * and advance i to beyond the code units of this code point (post-increment).
+ * i must point to the first code unit of a code point.
+ * Otherwise c is set to the trail unit (surrogate) itself.
+ * Same as UTF16_NEXT_CHAR.
+ * \pre 0<=i<length
+ * \post 0<i<=length
+ *
+ * @deprecated ICU 2.4. Renamed to U16_NEXT, see utf_old.h.
+ */
+#define UTF_NEXT_CHAR(s, i, length, c) U16_NEXT(s, i, length, c)
+
+/**
+ * Append the code units of code point c to the string at index i
+ * and advance i to beyond the new code units (post-increment).
+ * The code units beginning at index i will be overwritten.
+ * Same as UTF16_APPEND_CHAR.
+ * \pre 0<=c<=0x10ffff
+ * \pre 0<=i<length
+ * \post 0<i<=length
+ *
+ * @deprecated ICU 2.4. Use U16_APPEND instead, see utf_old.h.
+ */
+#define UTF_APPEND_CHAR(s, i, length, c) UTF16_APPEND_CHAR_SAFE(s, i, length, c)
+
+/**
+ * Advance i to beyond the code units of the code point that begins at i.
+ * I.e., advance i by one code point.
+ * Same as UTF16_FWD_1.
+ * \pre 0<=i<length
+ * \post 0<i<=length
+ *
+ * @deprecated ICU 2.4. Renamed to U16_FWD_1, see utf_old.h.
+ */
+#define UTF_FWD_1(s, i, length) U16_FWD_1(s, i, length)
+
+/**
+ * Advance i to beyond the code units of the n code points where the first one begins at i.
+ * I.e., advance i by n code points.
+ * Same as UT16_FWD_N.
+ * \pre 0<=i<length
+ * \post 0<i<=length
+ *
+ * @deprecated ICU 2.4. Renamed to U16_FWD_N, see utf_old.h.
+ */
+#define UTF_FWD_N(s, i, length, n) U16_FWD_N(s, i, length, n)
+
+/**
+ * Take the random-access index i and adjust it so that it points to the beginning
+ * of a code point.
+ * The input index points to any code unit of a code point and is moved to point to
+ * the first code unit of the same code point. i is never incremented.
+ * In other words, if i points to a trail surrogate that is preceded by a matching
+ * lead surrogate, then i is decremented. Otherwise it is not modified.
+ * This can be used to start an iteration with UTF_NEXT_CHAR() from a random index.
+ * Same as UTF16_SET_CHAR_START.
+ * \pre start<=i<length
+ * \post start<=i<length
+ *
+ * @deprecated ICU 2.4. Renamed to U16_SET_CP_START, see utf_old.h.
+ */
+#define UTF_SET_CHAR_START(s, start, i) U16_SET_CP_START(s, start, i)
+
+/**
+ * Set c to the code point that has code units before i
+ * and move i backward (towards the beginning of the string)
+ * to the first code unit of this code point (pre-increment).
+ * i must point to the first code unit after the last unit of a code point (i==length is allowed).
+ * Same as UTF16_PREV_CHAR.
+ * \pre start<i<=length
+ * \post start<=i<length
+ *
+ * @deprecated ICU 2.4. Renamed to U16_PREV, see utf_old.h.
+ */
+#define UTF_PREV_CHAR(s, start, i, c) U16_PREV(s, start, i, c)
+
+/**
+ * Move i backward (towards the beginning of the string)
+ * to the first code unit of the code point that has code units before i.
+ * I.e., move i backward by one code point.
+ * i must point to the first code unit after the last unit of a code point (i==length is allowed).
+ * Same as UTF16_BACK_1.
+ * \pre start<i<=length
+ * \post start<=i<length
+ *
+ * @deprecated ICU 2.4. Renamed to U16_BACK_1, see utf_old.h.
+ */
+#define UTF_BACK_1(s, start, i) U16_BACK_1(s, start, i)
+
+/**
+ * Move i backward (towards the beginning of the string)
+ * to the first code unit of the n code points that have code units before i.
+ * I.e., move i backward by n code points.
+ * i must point to the first code unit after the last unit of a code point (i==length is allowed).
+ * Same as UTF16_BACK_N.
+ * \pre start<i<=length
+ * \post start<=i<length
+ *
+ * @deprecated ICU 2.4. Renamed to U16_BACK_N, see utf_old.h.
+ */
+#define UTF_BACK_N(s, start, i, n) U16_BACK_N(s, start, i, n)
+
+/**
+ * Take the random-access index i and adjust it so that it points beyond
+ * a code point. The input index points beyond any code unit
+ * of a code point and is moved to point beyond the last code unit of the same
+ * code point. i is never decremented.
+ * In other words, if i points to a trail surrogate that is preceded by a matching
+ * lead surrogate, then i is incremented. Otherwise it is not modified.
+ * This can be used to start an iteration with UTF_PREV_CHAR() from a random index.
+ * Same as UTF16_SET_CHAR_LIMIT.
+ * \pre start<i<=length
+ * \post start<i<=length
+ *
+ * @deprecated ICU 2.4. Renamed to U16_SET_CP_LIMIT, see utf_old.h.
+ */
+#define UTF_SET_CHAR_LIMIT(s, start, i, length) U16_SET_CP_LIMIT(s, start, i, length)
+
+#endif  // !U_HIDE_DEPRECATED_API && !U_HIDE_OBSOLETE_UTF_OLD_H
+
+#endif
diff --git a/vendor/icu/include/unicode/utypes.h b/vendor/icu/include/unicode/utypes.h
new file mode 100644
index 0000000000..6e22fb0f92
--- /dev/null
+++ b/vendor/icu/include/unicode/utypes.h
@@ -0,0 +1,704 @@
+// © 2016 and later: Unicode, Inc. and others.
+// License & terms of use: http://www.unicode.org/copyright.html
+/*
+**********************************************************************
+*   Copyright (C) 1996-2016, International Business Machines
+*   Corporation and others.  All Rights Reserved.
+**********************************************************************
+*
+*  FILE NAME : UTYPES.H (formerly ptypes.h)
+*
+*   Date        Name        Description
+*   12/11/96    helena      Creation.
+*   02/27/97    aliu        Added typedefs for UClassID, int8, int16, int32,
+*                           uint8, uint16, and uint32.
+*   04/01/97    aliu        Added XP_CPLUSPLUS and modified to work under C as
+*                            well as C++.
+*                           Modified to use memcpy() for uprv_arrayCopy() fns.
+*   04/14/97    aliu        Added TPlatformUtilities.
+*   05/07/97    aliu        Added import/export specifiers (replacing the old
+*                           broken EXT_CLASS).  Added version number for our
+*                           code.  Cleaned up header.
+*    6/20/97    helena      Java class name change.
+*   08/11/98    stephen     UErrorCode changed from typedef to enum
+*   08/12/98    erm         Changed T_ANALYTIC_PACKAGE_VERSION to 3
+*   08/14/98    stephen     Added uprv_arrayCopy() for int8_t, int16_t, int32_t
+*   12/09/98    jfitz       Added BUFFER_OVERFLOW_ERROR (bug 1100066)
+*   04/20/99    stephen     Cleaned up & reworked for autoconf.
+*                           Renamed to utypes.h.
+*   05/05/99    stephen     Changed to use <inttypes.h>
+*   12/07/99    helena      Moved copyright notice string from ucnv_bld.h here.
+*******************************************************************************
+*/
+
+#ifndef UTYPES_H
+#define UTYPES_H
+
+
+#include <unicode/umachine.h>
+#include <unicode/uversion.h>
+#include <unicode/uconfig.h>
+#include <float.h>
+
+#if !U_NO_DEFAULT_INCLUDE_UTF_HEADERS
+#   include "unicode/utf.h"
+#endif
+
+/*!
+ * \file
+ * \brief Basic definitions for ICU, for both C and C++ APIs
+ *
+ * This file defines basic types, constants, and enumerations directly or
+ * indirectly by including other header files, especially utf.h for the
+ * basic character and string definitions and umachine.h for consistent
+ * integer and other types.
+ */
+
+
+/**
+ * \def U_SHOW_CPLUSPLUS_API
+ * @internal
+ */
+#ifdef __cplusplus
+#   ifndef U_SHOW_CPLUSPLUS_API
+#       define U_SHOW_CPLUSPLUS_API 1
+#   endif
+#else
+#   undef U_SHOW_CPLUSPLUS_API
+#   define U_SHOW_CPLUSPLUS_API 0
+#endif
+
+/** @{ API visibility control */
+
+/**
+ * \def U_HIDE_DRAFT_API
+ * Define this to 1 to request that draft API be "hidden"
+ * @internal
+ */
+/**
+ * \def U_HIDE_INTERNAL_API
+ * Define this to 1 to request that internal API be "hidden"
+ * @internal
+ */
+#if !U_DEFAULT_SHOW_DRAFT && !defined(U_SHOW_DRAFT_API)
+#define U_HIDE_DRAFT_API 1
+#endif
+#if !U_DEFAULT_SHOW_DRAFT && !defined(U_SHOW_INTERNAL_API)
+#define U_HIDE_INTERNAL_API 1
+#endif
+
+/** @} */
+
+/*===========================================================================*/
+/* ICUDATA naming scheme                                                     */
+/*===========================================================================*/
+
+/**
+ * \def U_ICUDATA_TYPE_LETTER
+ *
+ * This is a platform-dependent string containing one letter:
+ * - b for big-endian, ASCII-family platforms
+ * - l for little-endian, ASCII-family platforms
+ * - e for big-endian, EBCDIC-family platforms
+ * This letter is part of the common data file name.
+ * @stable ICU 2.0
+ */
+
+/**
+ * \def U_ICUDATA_TYPE_LITLETTER
+ * The non-string form of U_ICUDATA_TYPE_LETTER
+ * @stable ICU 2.0
+ */
+#if U_CHARSET_FAMILY
+#   if U_IS_BIG_ENDIAN
+   /* EBCDIC - should always be BE */
+#     define U_ICUDATA_TYPE_LETTER "e"
+#     define U_ICUDATA_TYPE_LITLETTER e
+#   else
+#     error "Don't know what to do with little endian EBCDIC!"
+#     define U_ICUDATA_TYPE_LETTER "x"
+#     define U_ICUDATA_TYPE_LITLETTER x
+#   endif
+#else
+#   if U_IS_BIG_ENDIAN
+      /* Big-endian ASCII */
+#     define U_ICUDATA_TYPE_LETTER "b"
+#     define U_ICUDATA_TYPE_LITLETTER b
+#   else
+      /* Little-endian ASCII */
+#     define U_ICUDATA_TYPE_LETTER "l"
+#     define U_ICUDATA_TYPE_LITLETTER l
+#   endif
+#endif
+
+/**
+ * A single string literal containing the icudata stub name. i.e. 'icudt18e' for
+ * ICU 1.8.x on EBCDIC, etc..
+ * @stable ICU 2.0
+ */
+#define U_ICUDATA_NAME    "icudt" U_ICU_VERSION_SHORT U_ICUDATA_TYPE_LETTER
+#ifndef U_HIDE_INTERNAL_API
+#define U_USRDATA_NAME    "usrdt" U_ICU_VERSION_SHORT U_ICUDATA_TYPE_LETTER  /**< @internal */
+#define U_USE_USRDATA     0  /**< @internal */
+#endif  /* U_HIDE_INTERNAL_API */
+
+/**
+ *  U_ICU_ENTRY_POINT is the name of the DLL entry point to the ICU data library.
+ *    Defined as a literal, not a string.
+ *    Tricky Preprocessor use - ## operator replaces macro parameters with the literal string
+ *                              from the corresponding macro invocation, _before_ other macro substitutions.
+ *                              Need a nested \#defines to get the actual version numbers rather than
+ *                              the literal text U_ICU_VERSION_MAJOR_NUM into the name.
+ *                              The net result will be something of the form
+ *                                  \#define U_ICU_ENTRY_POINT icudt19_dat
+ * @stable ICU 2.4
+ */
+#define U_ICUDATA_ENTRY_POINT  U_DEF2_ICUDATA_ENTRY_POINT(U_ICU_VERSION_MAJOR_NUM,U_LIB_SUFFIX_C_NAME)
+
+#ifndef U_HIDE_INTERNAL_API
+/**
+ * Do not use. Note that it's OK for the 2nd argument to be undefined (literal).
+ * @internal
+ */
+#define U_DEF2_ICUDATA_ENTRY_POINT(major,suff) U_DEF_ICUDATA_ENTRY_POINT(major,suff)
+
+/**
+ * Do not use.
+ * @internal
+ */
+#ifndef U_DEF_ICUDATA_ENTRY_POINT
+/* affected by symbol renaming. See platform.h */
+#ifndef U_LIB_SUFFIX_C_NAME
+#define U_DEF_ICUDATA_ENTRY_POINT(major, suff) icudt##major##_dat
+#else
+#define U_DEF_ICUDATA_ENTRY_POINT(major, suff) icudt##suff ## major##_dat
+#endif
+#endif
+#endif  /* U_HIDE_INTERNAL_API */
+
+/**
+ * \def NULL
+ * Define NULL if necessary, to nullptr for C++ and to ((void *)0) for C.
+ * @stable ICU 2.0
+ */
+#ifndef NULL
+#ifdef __cplusplus
+#define NULL    nullptr
+#else
+#define NULL    ((void *)0)
+#endif
+#endif
+
+/*===========================================================================*/
+/* Calendar/TimeZone data types                                              */
+/*===========================================================================*/
+
+/**
+ * Date and Time data type.
+ * This is a primitive data type that holds the date and time
+ * as the number of milliseconds since 1970-jan-01, 00:00 UTC.
+ * UTC leap seconds are ignored.
+ * @stable ICU 2.0
+ */
+typedef double UDate;
+
+/** The number of milliseconds per second @stable ICU 2.0 */
+#define U_MILLIS_PER_SECOND        (1000)
+/** The number of milliseconds per minute @stable ICU 2.0 */
+#define U_MILLIS_PER_MINUTE       (60000)
+/** The number of milliseconds per hour @stable ICU 2.0 */
+#define U_MILLIS_PER_HOUR       (3600000)
+/** The number of milliseconds per day @stable ICU 2.0 */
+#define U_MILLIS_PER_DAY       (86400000)
+
+/** 
+ * Maximum UDate value 
+ * @stable ICU 4.8 
+ */ 
+#define U_DATE_MAX DBL_MAX
+
+/**
+ * Minimum UDate value 
+ * @stable ICU 4.8 
+ */ 
+#define U_DATE_MIN -U_DATE_MAX
+
+/*===========================================================================*/
+/* Shared library/DLL import-export API control                              */
+/*===========================================================================*/
+
+/*
+ * Control of symbol import/export.
+ * ICU is separated into three libraries.
+ */
+
+/**
+ * \def U_COMBINED_IMPLEMENTATION
+ * Set to export library symbols from inside the ICU library
+ * when all of ICU is in a single library.
+ * This can be set as a compiler option while building ICU, and it
+ * needs to be the first one tested to override U_COMMON_API, U_I18N_API, etc.
+ * @stable ICU 2.0
+ */
+
+/**
+ * \def U_DATA_API
+ * Set to export library symbols from inside the stubdata library,
+ * and to import them from outside.
+ * @stable ICU 3.0
+ */
+
+/**
+ * \def U_COMMON_API
+ * Set to export library symbols from inside the common library,
+ * and to import them from outside.
+ * @stable ICU 2.0
+ */
+
+/**
+ * \def U_I18N_API
+ * Set to export library symbols from inside the i18n library,
+ * and to import them from outside.
+ * @stable ICU 2.0
+ */
+
+/**
+ * \def U_LAYOUT_API
+ * Set to export library symbols from inside the layout engine library,
+ * and to import them from outside.
+ * @stable ICU 2.0
+ */
+
+/**
+ * \def U_LAYOUTEX_API
+ * Set to export library symbols from inside the layout extensions library,
+ * and to import them from outside.
+ * @stable ICU 2.6
+ */
+
+/**
+ * \def U_IO_API
+ * Set to export library symbols from inside the ustdio library,
+ * and to import them from outside.
+ * @stable ICU 2.0
+ */
+
+/**
+ * \def U_TOOLUTIL_API
+ * Set to export library symbols from inside the toolutil library,
+ * and to import them from outside.
+ * @stable ICU 3.4
+ */
+
+#if defined(U_COMBINED_IMPLEMENTATION)
+#define U_DATA_API     U_EXPORT
+#define U_COMMON_API   U_EXPORT
+#define U_I18N_API     U_EXPORT
+#define U_LAYOUT_API   U_EXPORT
+#define U_LAYOUTEX_API U_EXPORT
+#define U_IO_API       U_EXPORT
+#define U_TOOLUTIL_API U_EXPORT
+#elif defined(U_STATIC_IMPLEMENTATION)
+#define U_DATA_API
+#define U_COMMON_API
+#define U_I18N_API
+#define U_LAYOUT_API
+#define U_LAYOUTEX_API
+#define U_IO_API
+#define U_TOOLUTIL_API
+#elif defined(U_COMMON_IMPLEMENTATION)
+#define U_DATA_API     U_IMPORT
+#define U_COMMON_API   U_EXPORT
+#define U_I18N_API     U_IMPORT
+#define U_LAYOUT_API   U_IMPORT
+#define U_LAYOUTEX_API U_IMPORT
+#define U_IO_API       U_IMPORT
+#define U_TOOLUTIL_API U_IMPORT
+#elif defined(U_I18N_IMPLEMENTATION)
+#define U_DATA_API     U_IMPORT
+#define U_COMMON_API   U_IMPORT
+#define U_I18N_API     U_EXPORT
+#define U_LAYOUT_API   U_IMPORT
+#define U_LAYOUTEX_API U_IMPORT
+#define U_IO_API       U_IMPORT
+#define U_TOOLUTIL_API U_IMPORT
+#elif defined(U_LAYOUT_IMPLEMENTATION)
+#define U_DATA_API     U_IMPORT
+#define U_COMMON_API   U_IMPORT
+#define U_I18N_API     U_IMPORT
+#define U_LAYOUT_API   U_EXPORT
+#define U_LAYOUTEX_API U_IMPORT
+#define U_IO_API       U_IMPORT
+#define U_TOOLUTIL_API U_IMPORT
+#elif defined(U_LAYOUTEX_IMPLEMENTATION)
+#define U_DATA_API     U_IMPORT
+#define U_COMMON_API   U_IMPORT
+#define U_I18N_API     U_IMPORT
+#define U_LAYOUT_API   U_IMPORT
+#define U_LAYOUTEX_API U_EXPORT
+#define U_IO_API       U_IMPORT
+#define U_TOOLUTIL_API U_IMPORT
+#elif defined(U_IO_IMPLEMENTATION)
+#define U_DATA_API     U_IMPORT
+#define U_COMMON_API   U_IMPORT
+#define U_I18N_API     U_IMPORT
+#define U_LAYOUT_API   U_IMPORT
+#define U_LAYOUTEX_API U_IMPORT
+#define U_IO_API       U_EXPORT
+#define U_TOOLUTIL_API U_IMPORT
+#elif defined(U_TOOLUTIL_IMPLEMENTATION)
+#define U_DATA_API     U_IMPORT
+#define U_COMMON_API   U_IMPORT
+#define U_I18N_API     U_IMPORT
+#define U_LAYOUT_API   U_IMPORT
+#define U_LAYOUTEX_API U_IMPORT
+#define U_IO_API       U_IMPORT
+#define U_TOOLUTIL_API U_EXPORT
+#else
+#define U_DATA_API     U_IMPORT
+#define U_COMMON_API   U_IMPORT
+#define U_I18N_API     U_IMPORT
+#define U_LAYOUT_API   U_IMPORT
+#define U_LAYOUTEX_API U_IMPORT
+#define U_IO_API       U_IMPORT
+#define U_TOOLUTIL_API U_IMPORT
+#endif
+
+/**
+ * \def U_STANDARD_CPP_NAMESPACE
+ * Control of C++ Namespace
+ * @stable ICU 2.0
+ */
+#ifdef __cplusplus
+#define U_STANDARD_CPP_NAMESPACE        ::
+#else
+#define U_STANDARD_CPP_NAMESPACE
+#endif
+
+/*===========================================================================*/
+/* UErrorCode */
+/*===========================================================================*/
+
+/**
+ * Error code to replace exception handling, so that the code is compatible with all C++ compilers,
+ * and to use the same mechanism for C and C++.
+ *
+ * \par
+ * ICU functions that take a reference (C++) or a pointer (C) to a UErrorCode
+ * first test if(U_FAILURE(errorCode)) { return immediately; }
+ * so that in a chain of such functions the first one that sets an error code
+ * causes the following ones to not perform any operations.
+ *
+ * \par
+ * Error codes should be tested using U_FAILURE() and U_SUCCESS().
+ * @stable ICU 2.0
+ */
+typedef enum UErrorCode {
+    /* The ordering of U_ERROR_INFO_START Vs U_USING_FALLBACK_WARNING looks weird
+     * and is that way because VC++ debugger displays first encountered constant,
+     * which is not the what the code is used for
+     */
+
+    U_USING_FALLBACK_WARNING  = -128,   /**< A resource bundle lookup returned a fallback result (not an error) */
+
+    U_ERROR_WARNING_START     = -128,   /**< Start of information results (semantically successful) */
+
+    U_USING_DEFAULT_WARNING   = -127,   /**< A resource bundle lookup returned a result from the root locale (not an error) */
+
+    U_SAFECLONE_ALLOCATED_WARNING = -126, /**< A SafeClone operation required allocating memory (informational only) */
+
+    U_STATE_OLD_WARNING       = -125,   /**< ICU has to use compatibility layer to construct the service. Expect performance/memory usage degradation. Consider upgrading */
+
+    U_STRING_NOT_TERMINATED_WARNING = -124,/**< An output string could not be NUL-terminated because output length==destCapacity. */
+
+    U_SORT_KEY_TOO_SHORT_WARNING = -123, /**< Number of levels requested in getBound is higher than the number of levels in the sort key */
+
+    U_AMBIGUOUS_ALIAS_WARNING = -122,   /**< This converter alias can go to different converter implementations */
+
+    U_DIFFERENT_UCA_VERSION = -121,     /**< ucol_open encountered a mismatch between UCA version and collator image version, so the collator was constructed from rules. No impact to further function */
+    
+    U_PLUGIN_CHANGED_LEVEL_WARNING = -120, /**< A plugin caused a level change. May not be an error, but later plugins may not load. */
+
+#ifndef U_HIDE_DEPRECATED_API
+    /**
+     * One more than the highest normal UErrorCode warning value.
+     * @deprecated ICU 58 The numeric value may change over time, see ICU ticket #12420.
+     */
+    U_ERROR_WARNING_LIMIT,
+#endif  // U_HIDE_DEPRECATED_API
+
+    U_ZERO_ERROR              =  0,     /**< No error, no warning. */
+
+    U_ILLEGAL_ARGUMENT_ERROR  =  1,     /**< Start of codes indicating failure */
+    U_MISSING_RESOURCE_ERROR  =  2,     /**< The requested resource cannot be found */
+    U_INVALID_FORMAT_ERROR    =  3,     /**< Data format is not what is expected */
+    U_FILE_ACCESS_ERROR       =  4,     /**< The requested file cannot be found */
+    U_INTERNAL_PROGRAM_ERROR  =  5,     /**< Indicates a bug in the library code */
+    U_MESSAGE_PARSE_ERROR     =  6,     /**< Unable to parse a message (message format) */
+    U_MEMORY_ALLOCATION_ERROR =  7,     /**< Memory allocation error */
+    U_INDEX_OUTOFBOUNDS_ERROR =  8,     /**< Trying to access the index that is out of bounds */
+    U_PARSE_ERROR             =  9,     /**< Equivalent to Java ParseException */
+    U_INVALID_CHAR_FOUND      = 10,     /**< Character conversion: Unmappable input sequence. In other APIs: Invalid character. */
+    U_TRUNCATED_CHAR_FOUND    = 11,     /**< Character conversion: Incomplete input sequence. */
+    U_ILLEGAL_CHAR_FOUND      = 12,     /**< Character conversion: Illegal input sequence/combination of input units. */
+    U_INVALID_TABLE_FORMAT    = 13,     /**< Conversion table file found, but corrupted */
+    U_INVALID_TABLE_FILE      = 14,     /**< Conversion table file not found */
+    U_BUFFER_OVERFLOW_ERROR   = 15,     /**< A result would not fit in the supplied buffer */
+    U_UNSUPPORTED_ERROR       = 16,     /**< Requested operation not supported in current context */
+    U_RESOURCE_TYPE_MISMATCH  = 17,     /**< an operation is requested over a resource that does not support it */
+    U_ILLEGAL_ESCAPE_SEQUENCE = 18,     /**< ISO-2022 illegal escape sequence */
+    U_UNSUPPORTED_ESCAPE_SEQUENCE = 19, /**< ISO-2022 unsupported escape sequence */
+    U_NO_SPACE_AVAILABLE      = 20,     /**< No space available for in-buffer expansion for Arabic shaping */
+    U_CE_NOT_FOUND_ERROR      = 21,     /**< Currently used only while setting variable top, but can be used generally */
+    U_PRIMARY_TOO_LONG_ERROR  = 22,     /**< User tried to set variable top to a primary that is longer than two bytes */
+    U_STATE_TOO_OLD_ERROR     = 23,     /**< ICU cannot construct a service from this state, as it is no longer supported */
+    U_TOO_MANY_ALIASES_ERROR  = 24,     /**< There are too many aliases in the path to the requested resource.
+                                             It is very possible that a circular alias definition has occurred */
+    U_ENUM_OUT_OF_SYNC_ERROR  = 25,     /**< UEnumeration out of sync with underlying collection */
+    U_INVARIANT_CONVERSION_ERROR = 26,  /**< Unable to convert a UChar* string to char* with the invariant converter. */
+    U_INVALID_STATE_ERROR     = 27,     /**< Requested operation can not be completed with ICU in its current state */
+    U_COLLATOR_VERSION_MISMATCH = 28,   /**< Collator version is not compatible with the base version */
+    U_USELESS_COLLATOR_ERROR  = 29,     /**< Collator is options only and no base is specified */
+    U_NO_WRITE_PERMISSION     = 30,     /**< Attempt to modify read-only or constant data. */
+
+#ifndef U_HIDE_DEPRECATED_API
+    /**
+     * One more than the highest standard error code.
+     * @deprecated ICU 58 The numeric value may change over time, see ICU ticket #12420.
+     */
+    U_STANDARD_ERROR_LIMIT,
+#endif  // U_HIDE_DEPRECATED_API
+
+    /*
+     * Error codes in the range 0x10000 0x10100 are reserved for Transliterator.
+     */
+    U_BAD_VARIABLE_DEFINITION=0x10000,/**< Missing '$' or duplicate variable name */
+    U_PARSE_ERROR_START = 0x10000,    /**< Start of Transliterator errors */
+    U_MALFORMED_RULE,                 /**< Elements of a rule are misplaced */
+    U_MALFORMED_SET,                  /**< A UnicodeSet pattern is invalid*/
+    U_MALFORMED_SYMBOL_REFERENCE,     /**< UNUSED as of ICU 2.4 */
+    U_MALFORMED_UNICODE_ESCAPE,       /**< A Unicode escape pattern is invalid*/
+    U_MALFORMED_VARIABLE_DEFINITION,  /**< A variable definition is invalid */
+    U_MALFORMED_VARIABLE_REFERENCE,   /**< A variable reference is invalid */
+    U_MISMATCHED_SEGMENT_DELIMITERS,  /**< UNUSED as of ICU 2.4 */
+    U_MISPLACED_ANCHOR_START,         /**< A start anchor appears at an illegal position */
+    U_MISPLACED_CURSOR_OFFSET,        /**< A cursor offset occurs at an illegal position */
+    U_MISPLACED_QUANTIFIER,           /**< A quantifier appears after a segment close delimiter */
+    U_MISSING_OPERATOR,               /**< A rule contains no operator */
+    U_MISSING_SEGMENT_CLOSE,          /**< UNUSED as of ICU 2.4 */
+    U_MULTIPLE_ANTE_CONTEXTS,         /**< More than one ante context */
+    U_MULTIPLE_CURSORS,               /**< More than one cursor */
+    U_MULTIPLE_POST_CONTEXTS,         /**< More than one post context */
+    U_TRAILING_BACKSLASH,             /**< A dangling backslash */
+    U_UNDEFINED_SEGMENT_REFERENCE,    /**< A segment reference does not correspond to a defined segment */
+    U_UNDEFINED_VARIABLE,             /**< A variable reference does not correspond to a defined variable */
+    U_UNQUOTED_SPECIAL,               /**< A special character was not quoted or escaped */
+    U_UNTERMINATED_QUOTE,             /**< A closing single quote is missing */
+    U_RULE_MASK_ERROR,                /**< A rule is hidden by an earlier more general rule */
+    U_MISPLACED_COMPOUND_FILTER,      /**< A compound filter is in an invalid location */
+    U_MULTIPLE_COMPOUND_FILTERS,      /**< More than one compound filter */
+    U_INVALID_RBT_SYNTAX,             /**< A "::id" rule was passed to the RuleBasedTransliterator parser */
+    U_INVALID_PROPERTY_PATTERN,       /**< UNUSED as of ICU 2.4 */
+    U_MALFORMED_PRAGMA,               /**< A 'use' pragma is invalid */
+    U_UNCLOSED_SEGMENT,               /**< A closing ')' is missing */
+    U_ILLEGAL_CHAR_IN_SEGMENT,        /**< UNUSED as of ICU 2.4 */
+    U_VARIABLE_RANGE_EXHAUSTED,       /**< Too many stand-ins generated for the given variable range */
+    U_VARIABLE_RANGE_OVERLAP,         /**< The variable range overlaps characters used in rules */
+    U_ILLEGAL_CHARACTER,              /**< A special character is outside its allowed context */
+    U_INTERNAL_TRANSLITERATOR_ERROR,  /**< Internal transliterator system error */
+    U_INVALID_ID,                     /**< A "::id" rule specifies an unknown transliterator */
+    U_INVALID_FUNCTION,               /**< A "&fn()" rule specifies an unknown transliterator */
+#ifndef U_HIDE_DEPRECATED_API
+    /**
+     * One more than the highest normal Transliterator error code.
+     * @deprecated ICU 58 The numeric value may change over time, see ICU ticket #12420.
+     */
+    U_PARSE_ERROR_LIMIT,
+#endif  // U_HIDE_DEPRECATED_API
+
+    /*
+     * Error codes in the range 0x10100 0x10200 are reserved for the formatting API.
+     */
+    U_UNEXPECTED_TOKEN=0x10100,       /**< Syntax error in format pattern */
+    U_FMT_PARSE_ERROR_START=0x10100,  /**< Start of format library errors */
+    U_MULTIPLE_DECIMAL_SEPARATORS,    /**< More than one decimal separator in number pattern */
+    U_MULTIPLE_DECIMAL_SEPERATORS = U_MULTIPLE_DECIMAL_SEPARATORS, /**< Typo: kept for backward compatibility. Use U_MULTIPLE_DECIMAL_SEPARATORS */
+    U_MULTIPLE_EXPONENTIAL_SYMBOLS,   /**< More than one exponent symbol in number pattern */
+    U_MALFORMED_EXPONENTIAL_PATTERN,  /**< Grouping symbol in exponent pattern */
+    U_MULTIPLE_PERCENT_SYMBOLS,       /**< More than one percent symbol in number pattern */
+    U_MULTIPLE_PERMILL_SYMBOLS,       /**< More than one permill symbol in number pattern */
+    U_MULTIPLE_PAD_SPECIFIERS,        /**< More than one pad symbol in number pattern */
+    U_PATTERN_SYNTAX_ERROR,           /**< Syntax error in format pattern */
+    U_ILLEGAL_PAD_POSITION,           /**< Pad symbol misplaced in number pattern */
+    U_UNMATCHED_BRACES,               /**< Braces do not match in message pattern */
+    U_UNSUPPORTED_PROPERTY,           /**< UNUSED as of ICU 2.4 */
+    U_UNSUPPORTED_ATTRIBUTE,          /**< UNUSED as of ICU 2.4 */
+    U_ARGUMENT_TYPE_MISMATCH,         /**< Argument name and argument index mismatch in MessageFormat functions */
+    U_DUPLICATE_KEYWORD,              /**< Duplicate keyword in PluralFormat */
+    U_UNDEFINED_KEYWORD,              /**< Undefined Plural keyword */
+    U_DEFAULT_KEYWORD_MISSING,        /**< Missing DEFAULT rule in plural rules */
+    U_DECIMAL_NUMBER_SYNTAX_ERROR,    /**< Decimal number syntax error */
+    U_FORMAT_INEXACT_ERROR,           /**< Cannot format a number exactly and rounding mode is ROUND_UNNECESSARY @stable ICU 4.8 */
+#ifndef U_HIDE_DRAFT_API
+    U_NUMBER_ARG_OUTOFBOUNDS_ERROR,   /**< The argument to a NumberFormatter helper method was out of bounds; the bounds are usually 0 to 999. @draft ICU 61 */
+#endif  // U_HIDE_DRAFT_API
+#ifndef U_HIDE_DEPRECATED_API
+    /**
+     * One more than the highest normal formatting API error code.
+     * @deprecated ICU 58 The numeric value may change over time, see ICU ticket #12420.
+     */
+    U_FMT_PARSE_ERROR_LIMIT = 0x10113,
+#endif  // U_HIDE_DEPRECATED_API
+
+    /*
+     * Error codes in the range 0x10200 0x102ff are reserved for BreakIterator.
+     */
+    U_BRK_INTERNAL_ERROR=0x10200,          /**< An internal error (bug) was detected.             */
+    U_BRK_ERROR_START=0x10200,             /**< Start of codes indicating Break Iterator failures */
+    U_BRK_HEX_DIGITS_EXPECTED,             /**< Hex digits expected as part of a escaped char in a rule. */
+    U_BRK_SEMICOLON_EXPECTED,              /**< Missing ';' at the end of a RBBI rule.            */
+    U_BRK_RULE_SYNTAX,                     /**< Syntax error in RBBI rule.                        */
+    U_BRK_UNCLOSED_SET,                    /**< UnicodeSet writing an RBBI rule missing a closing ']'. */
+    U_BRK_ASSIGN_ERROR,                    /**< Syntax error in RBBI rule assignment statement.   */
+    U_BRK_VARIABLE_REDFINITION,            /**< RBBI rule $Variable redefined.                    */
+    U_BRK_MISMATCHED_PAREN,                /**< Mis-matched parentheses in an RBBI rule.          */
+    U_BRK_NEW_LINE_IN_QUOTED_STRING,       /**< Missing closing quote in an RBBI rule.            */
+    U_BRK_UNDEFINED_VARIABLE,              /**< Use of an undefined $Variable in an RBBI rule.    */
+    U_BRK_INIT_ERROR,                      /**< Initialization failure.  Probable missing ICU Data. */
+    U_BRK_RULE_EMPTY_SET,                  /**< Rule contains an empty Unicode Set.               */
+    U_BRK_UNRECOGNIZED_OPTION,             /**< !!option in RBBI rules not recognized.            */
+    U_BRK_MALFORMED_RULE_TAG,              /**< The {nnn} tag on a rule is malformed              */
+#ifndef U_HIDE_DEPRECATED_API
+    /**
+     * One more than the highest normal BreakIterator error code.
+     * @deprecated ICU 58 The numeric value may change over time, see ICU ticket #12420.
+     */
+    U_BRK_ERROR_LIMIT,
+#endif  // U_HIDE_DEPRECATED_API
+
+    /*
+     * Error codes in the range 0x10300-0x103ff are reserved for regular expression related errors.
+     */
+    U_REGEX_INTERNAL_ERROR=0x10300,       /**< An internal error (bug) was detected.              */
+    U_REGEX_ERROR_START=0x10300,          /**< Start of codes indicating Regexp failures          */
+    U_REGEX_RULE_SYNTAX,                  /**< Syntax error in regexp pattern.                    */
+    U_REGEX_INVALID_STATE,                /**< RegexMatcher in invalid state for requested operation */
+    U_REGEX_BAD_ESCAPE_SEQUENCE,          /**< Unrecognized backslash escape sequence in pattern  */
+    U_REGEX_PROPERTY_SYNTAX,              /**< Incorrect Unicode property                         */
+    U_REGEX_UNIMPLEMENTED,                /**< Use of regexp feature that is not yet implemented. */
+    U_REGEX_MISMATCHED_PAREN,             /**< Incorrectly nested parentheses in regexp pattern.  */
+    U_REGEX_NUMBER_TOO_BIG,               /**< Decimal number is too large.                       */
+    U_REGEX_BAD_INTERVAL,                 /**< Error in {min,max} interval                        */
+    U_REGEX_MAX_LT_MIN,                   /**< In {min,max}, max is less than min.                */
+    U_REGEX_INVALID_BACK_REF,             /**< Back-reference to a non-existent capture group.    */
+    U_REGEX_INVALID_FLAG,                 /**< Invalid value for match mode flags.                */
+    U_REGEX_LOOK_BEHIND_LIMIT,            /**< Look-Behind pattern matches must have a bounded maximum length.    */
+    U_REGEX_SET_CONTAINS_STRING,          /**< Regexps cannot have UnicodeSets containing strings.*/
+#ifndef U_HIDE_DEPRECATED_API
+    U_REGEX_OCTAL_TOO_BIG,                /**< Octal character constants must be <= 0377. @deprecated ICU 54. This error cannot occur. */
+#endif  /* U_HIDE_DEPRECATED_API */
+    U_REGEX_MISSING_CLOSE_BRACKET=U_REGEX_SET_CONTAINS_STRING+2, /**< Missing closing bracket on a bracket expression. */
+    U_REGEX_INVALID_RANGE,                /**< In a character range [x-y], x is greater than y.   */
+    U_REGEX_STACK_OVERFLOW,               /**< Regular expression backtrack stack overflow.       */
+    U_REGEX_TIME_OUT,                     /**< Maximum allowed match time exceeded                */
+    U_REGEX_STOPPED_BY_CALLER,            /**< Matching operation aborted by user callback fn.    */
+    U_REGEX_PATTERN_TOO_BIG,              /**< Pattern exceeds limits on size or complexity. @stable ICU 55 */
+    U_REGEX_INVALID_CAPTURE_GROUP_NAME,   /**< Invalid capture group name. @stable ICU 55 */
+#ifndef U_HIDE_DEPRECATED_API
+    /**
+     * One more than the highest normal regular expression error code.
+     * @deprecated ICU 58 The numeric value may change over time, see ICU ticket #12420.
+     */
+    U_REGEX_ERROR_LIMIT=U_REGEX_STOPPED_BY_CALLER+3,
+#endif  // U_HIDE_DEPRECATED_API
+
+    /*
+     * Error codes in the range 0x10400-0x104ff are reserved for IDNA related error codes.
+     */
+    U_IDNA_PROHIBITED_ERROR=0x10400,
+    U_IDNA_ERROR_START=0x10400,
+    U_IDNA_UNASSIGNED_ERROR,
+    U_IDNA_CHECK_BIDI_ERROR,
+    U_IDNA_STD3_ASCII_RULES_ERROR,
+    U_IDNA_ACE_PREFIX_ERROR,
+    U_IDNA_VERIFICATION_ERROR,
+    U_IDNA_LABEL_TOO_LONG_ERROR,
+    U_IDNA_ZERO_LENGTH_LABEL_ERROR,
+    U_IDNA_DOMAIN_NAME_TOO_LONG_ERROR,
+#ifndef U_HIDE_DEPRECATED_API
+    /**
+     * One more than the highest normal IDNA error code.
+     * @deprecated ICU 58 The numeric value may change over time, see ICU ticket #12420.
+     */
+    U_IDNA_ERROR_LIMIT,
+#endif  // U_HIDE_DEPRECATED_API
+    /*
+     * Aliases for StringPrep
+     */
+    U_STRINGPREP_PROHIBITED_ERROR = U_IDNA_PROHIBITED_ERROR,
+    U_STRINGPREP_UNASSIGNED_ERROR = U_IDNA_UNASSIGNED_ERROR,
+    U_STRINGPREP_CHECK_BIDI_ERROR = U_IDNA_CHECK_BIDI_ERROR,
+    
+    /*
+     * Error codes in the range 0x10500-0x105ff are reserved for Plugin related error codes.
+     */
+    U_PLUGIN_ERROR_START=0x10500,         /**< Start of codes indicating plugin failures */
+    U_PLUGIN_TOO_HIGH=0x10500,            /**< The plugin's level is too high to be loaded right now. */
+    U_PLUGIN_DIDNT_SET_LEVEL,             /**< The plugin didn't call uplug_setPlugLevel in response to a QUERY */
+#ifndef U_HIDE_DEPRECATED_API
+    /**
+     * One more than the highest normal plug-in error code.
+     * @deprecated ICU 58 The numeric value may change over time, see ICU ticket #12420.
+     */
+    U_PLUGIN_ERROR_LIMIT,
+#endif  // U_HIDE_DEPRECATED_API
+
+#ifndef U_HIDE_DEPRECATED_API
+    /**
+     * One more than the highest normal error code.
+     * @deprecated ICU 58 The numeric value may change over time, see ICU ticket #12420.
+     */
+    U_ERROR_LIMIT=U_PLUGIN_ERROR_LIMIT
+#endif  // U_HIDE_DEPRECATED_API
+} UErrorCode;
+
+/* Use the following to determine if an UErrorCode represents */
+/* operational success or failure. */
+
+#ifdef __cplusplus
+    /**
+     * Does the error code indicate success?
+     * @stable ICU 2.0
+     */
+    static
+    inline UBool U_SUCCESS(UErrorCode code) { return (UBool)(code<=U_ZERO_ERROR); }
+    /**
+     * Does the error code indicate a failure?
+     * @stable ICU 2.0
+     */
+    static
+    inline UBool U_FAILURE(UErrorCode code) { return (UBool)(code>U_ZERO_ERROR); }
+#else
+    /**
+     * Does the error code indicate success?
+     * @stable ICU 2.0
+     */
+#   define U_SUCCESS(x) ((x)<=U_ZERO_ERROR)
+    /**
+     * Does the error code indicate a failure?
+     * @stable ICU 2.0
+     */
+#   define U_FAILURE(x) ((x)>U_ZERO_ERROR)
+#endif
+
+/**
+ * Return a string for a UErrorCode value.
+ * The string will be the same as the name of the error code constant
+ * in the UErrorCode enum above.
+ * @stable ICU 2.0
+ */
+U_STABLE const char * U_EXPORT2
+u_errorName(UErrorCode code);
+
+
+#endif /* _UTYPES */
diff --git a/vendor/icu/include/unicode/uvernum.h b/vendor/icu/include/unicode/uvernum.h
new file mode 100644
index 0000000000..0427bcb03d
--- /dev/null
+++ b/vendor/icu/include/unicode/uvernum.h
@@ -0,0 +1,178 @@
+// © 2016 and later: Unicode, Inc. and others.
+// License & terms of use: http://www.unicode.org/copyright.html
+/*
+*******************************************************************************
+*   Copyright (C) 2000-2016, International Business Machines
+*   Corporation and others.  All Rights Reserved.
+*******************************************************************************
+*
+*   file name:  uvernum.h
+*   encoding:   UTF-8
+*   tab size:   8 (not used)
+*   indentation:4
+*
+*   Created by: Vladimir Weinstein
+*   Updated by: Steven R. Loomis
+*
+*/
+
+/**
+ * \file
+ * \brief C API: definitions of ICU version numbers
+ *
+ * This file is included by uversion.h and other files. This file contains only
+ * macros and definitions. The actual version numbers are defined here.
+ */
+
+ /*
+  * IMPORTANT: When updating version, the following things need to be done:
+  * source/common/unicode/uvernum.h - this file: update major, minor,
+  *        patchlevel, suffix, version, short version constants, namespace,
+  *                    renaming macro, and copyright
+  *
+  * The following files need to be updated as well, which can be done
+  *  by running the UNIX makefile target 'update-windows-makefiles' in icu/source.
+  *
+  *
+  * source/common/common.vcxproj - update 'Output file name' on the link tab so
+  *                   that it contains the new major/minor combination
+  * source/i18n/i18n.vcxproj - same as for the common.vcxproj
+  * source/layoutex/layoutex.vcproj - same
+  * source/stubdata/stubdata.vcproj - same as for the common.vcxproj
+  * source/io/io.vcproj - same as for the common.vcxproj
+  * source/data/makedata.mak - change U_ICUDATA_NAME so that it contains
+  *                            the new major/minor combination and the Unicode version.
+  */
+
+#ifndef UVERNUM_H
+#define UVERNUM_H
+
+/** The standard copyright notice that gets compiled into each library.
+ *  This value will change in the subsequent releases of ICU
+ *  @stable ICU 2.4
+ */
+#define U_COPYRIGHT_STRING \
+  " Copyright (C) 2016 and later: Unicode, Inc. and others. License & terms of use: http://www.unicode.org/copyright.html "
+
+/** The current ICU major version as an integer.
+ *  This value will change in the subsequent releases of ICU
+ *  @stable ICU 2.4
+ */
+#define U_ICU_VERSION_MAJOR_NUM 61
+
+/** The current ICU minor version as an integer.
+ *  This value will change in the subsequent releases of ICU
+ *  @stable ICU 2.6
+ */
+#define U_ICU_VERSION_MINOR_NUM 1
+
+/** The current ICU patchlevel version as an integer.
+ *  This value will change in the subsequent releases of ICU
+ *  @stable ICU 2.4
+ */
+#define U_ICU_VERSION_PATCHLEVEL_NUM 0
+
+/** The current ICU build level version as an integer.
+ *  This value is for use by ICU clients. It defaults to 0.
+ *  @stable ICU 4.0
+ */
+#ifndef U_ICU_VERSION_BUILDLEVEL_NUM
+#define U_ICU_VERSION_BUILDLEVEL_NUM 0
+#endif
+
+/** Glued version suffix for renamers
+ *  This value will change in the subsequent releases of ICU
+ *  @stable ICU 2.6
+ */
+#define U_ICU_VERSION_SUFFIX _61
+
+/**
+ * \def U_DEF2_ICU_ENTRY_POINT_RENAME
+ * @internal
+ */
+/**
+ * \def U_DEF_ICU_ENTRY_POINT_RENAME
+ * @internal
+ */
+/** Glued version suffix function for renamers
+ *  This value will change in the subsequent releases of ICU.
+ *  If a custom suffix (such as matching library suffixes) is desired, this can be modified.
+ *  Note that if present, platform.h may contain an earlier definition of this macro.
+ *  \def U_ICU_ENTRY_POINT_RENAME
+ *  @stable ICU 4.2
+ */
+
+#ifndef U_ICU_ENTRY_POINT_RENAME
+#ifdef U_HAVE_LIB_SUFFIX
+#define U_DEF_ICU_ENTRY_POINT_RENAME(x,y,z) x ## y ##  z
+#define U_DEF2_ICU_ENTRY_POINT_RENAME(x,y,z) U_DEF_ICU_ENTRY_POINT_RENAME(x,y,z)
+#define U_ICU_ENTRY_POINT_RENAME(x)    U_DEF2_ICU_ENTRY_POINT_RENAME(x,U_ICU_VERSION_SUFFIX,U_LIB_SUFFIX_C_NAME)
+#else
+#define U_DEF_ICU_ENTRY_POINT_RENAME(x,y) x ## y
+#define U_DEF2_ICU_ENTRY_POINT_RENAME(x,y) U_DEF_ICU_ENTRY_POINT_RENAME(x,y)
+#define U_ICU_ENTRY_POINT_RENAME(x)    U_DEF2_ICU_ENTRY_POINT_RENAME(x,U_ICU_VERSION_SUFFIX)
+#endif
+#endif
+
+/** The current ICU library version as a dotted-decimal string. The patchlevel
+ *  only appears in this string if it non-zero.
+ *  This value will change in the subsequent releases of ICU
+ *  @stable ICU 2.4
+ */
+#define U_ICU_VERSION "61.1"
+
+/**
+ * The current ICU library major version number as a string, for library name suffixes.
+ * This value will change in subsequent releases of ICU.
+ *
+ * Until ICU 4.8, this was the combination of the single-digit major and minor ICU version numbers
+ * into one string without dots ("48").
+ * Since ICU 49, it is the double-digit major ICU version number.
+ * See http://userguide.icu-project.org/design#TOC-Version-Numbers-in-ICU
+ *
+ * @stable ICU 2.6
+ */
+#define U_ICU_VERSION_SHORT "61"
+
+#ifndef U_HIDE_INTERNAL_API
+/** Data version in ICU4C.
+ * @internal ICU 4.4 Internal Use Only
+ **/
+#define U_ICU_DATA_VERSION "61.1"
+#endif  /* U_HIDE_INTERNAL_API */
+
+/*===========================================================================
+ * ICU collation framework version information
+ * Version info that can be obtained from a collator is affected by these
+ * numbers in a secret and magic way. Please use collator version as whole
+ *===========================================================================
+ */
+
+/**
+ * Collation runtime version (sort key generator, strcoll).
+ * If the version is different, sort keys for the same string could be different.
+ * This value may change in subsequent releases of ICU.
+ * @stable ICU 2.4
+ */
+#define UCOL_RUNTIME_VERSION 9
+
+/**
+ * Collation builder code version.
+ * When this is different, the same tailoring might result
+ * in assigning different collation elements to code points.
+ * This value may change in subsequent releases of ICU.
+ * @stable ICU 2.4
+ */
+#define UCOL_BUILDER_VERSION 9
+
+#ifndef U_HIDE_DEPRECATED_API
+/**
+ * Constant 1.
+ * This was intended to be the version of collation tailorings,
+ * but instead the tailoring data carries a version number.
+ * @deprecated ICU 54
+ */
+#define UCOL_TAILORINGS_VERSION 1
+#endif  /* U_HIDE_DEPRECATED_API */
+
+#endif
diff --git a/vendor/icu/include/unicode/uversion.h b/vendor/icu/include/unicode/uversion.h
new file mode 100644
index 0000000000..e40070ec1f
--- /dev/null
+++ b/vendor/icu/include/unicode/uversion.h
@@ -0,0 +1,201 @@
+// © 2016 and later: Unicode, Inc. and others.
+// License & terms of use: http://www.unicode.org/copyright.html
+/*
+*******************************************************************************
+*   Copyright (C) 2000-2011, International Business Machines
+*   Corporation and others.  All Rights Reserved.
+*******************************************************************************
+*
+*   file name:  uversion.h
+*   encoding:   UTF-8
+*   tab size:   8 (not used)
+*   indentation:4
+*
+*   Created by: Vladimir Weinstein
+*
+*  Gets included by utypes.h and Windows .rc files
+*/
+
+/**
+ * \file
+ * \brief C API: API for accessing ICU version numbers. 
+ */
+/*===========================================================================*/
+/* Main ICU version information                                              */
+/*===========================================================================*/
+
+#ifndef UVERSION_H
+#define UVERSION_H
+
+#include <unicode/umachine.h>
+
+/* Actual version info lives in uvernum.h */
+#include <unicode/uvernum.h>
+
+/** Maximum length of the copyright string.
+ *  @stable ICU 2.4
+ */
+#define U_COPYRIGHT_STRING_LENGTH  128
+
+/** An ICU version consists of up to 4 numbers from 0..255.
+ *  @stable ICU 2.4
+ */
+#define U_MAX_VERSION_LENGTH 4
+
+/** In a string, ICU version fields are delimited by dots.
+ *  @stable ICU 2.4
+ */
+#define U_VERSION_DELIMITER '.'
+
+/** The maximum length of an ICU version string.
+ *  @stable ICU 2.4
+ */
+#define U_MAX_VERSION_STRING_LENGTH 20
+
+/** The binary form of a version on ICU APIs is an array of 4 uint8_t.
+ *  To compare two versions, use memcmp(v1,v2,sizeof(UVersionInfo)).
+ *  @stable ICU 2.4
+ */
+typedef uint8_t UVersionInfo[U_MAX_VERSION_LENGTH];
+
+/*===========================================================================*/
+/* C++ namespace if supported. Versioned unless versioning is disabled.      */
+/*===========================================================================*/
+
+/**
+ * \def U_NAMESPACE_BEGIN
+ * This is used to begin a declaration of a public ICU C++ API.
+ * When not compiling for C++, it does nothing.
+ * When compiling for C++, it begins an extern "C++" linkage block (to protect
+ * against cases in which an external client includes ICU header files inside
+ * an extern "C" linkage block).
+ *
+ * It also begins a versioned-ICU-namespace block.
+ * @stable ICU 2.4
+ */
+
+/**
+ * \def U_NAMESPACE_END
+ * This is used to end a declaration of a public ICU C++ API.
+ * When not compiling for C++, it does nothing.
+ * When compiling for C++, it ends the extern "C++" block begun by
+ * U_NAMESPACE_BEGIN.
+ *
+ * It also ends the versioned-ICU-namespace block begun by U_NAMESPACE_BEGIN.
+ * @stable ICU 2.4
+ */
+
+/**
+ * \def U_NAMESPACE_USE
+ * This is used to specify that the rest of the code uses the
+ * public ICU C++ API namespace.
+ * This is invoked by default; we recommend that you turn it off:
+ * See the "Recommended Build Options" section of the ICU4C readme
+ * (http://source.icu-project.org/repos/icu/icu/trunk/readme.html#RecBuild)
+ * @stable ICU 2.4
+ */
+
+/**
+ * \def U_NAMESPACE_QUALIFIER
+ * This is used to qualify that a function or class is part of
+ * the public ICU C++ API namespace.
+ *
+ * This macro is unnecessary since ICU 49 requires namespace support.
+ * You can just use "icu::" instead.
+ * @stable ICU 2.4
+ */
+
+/* Define C++ namespace symbols. */
+#ifdef __cplusplus
+#   if U_DISABLE_RENAMING
+#       define U_ICU_NAMESPACE icu
+        namespace U_ICU_NAMESPACE { }
+#   else
+#       define U_ICU_NAMESPACE U_ICU_ENTRY_POINT_RENAME(icu)
+        namespace U_ICU_NAMESPACE { }
+        namespace icu = U_ICU_NAMESPACE;
+#   endif
+
+#   define U_NAMESPACE_BEGIN extern "C++" { namespace U_ICU_NAMESPACE {
+#   define U_NAMESPACE_END } }
+#   define U_NAMESPACE_USE using namespace U_ICU_NAMESPACE;
+#   define U_NAMESPACE_QUALIFIER U_ICU_NAMESPACE::
+
+#   ifndef U_USING_ICU_NAMESPACE
+#       if defined(U_COMBINED_IMPLEMENTATION) || defined(U_COMMON_IMPLEMENTATION) || \
+                defined(U_I18N_IMPLEMENTATION) || defined(U_IO_IMPLEMENTATION) || \
+                defined(U_LAYOUTEX_IMPLEMENTATION) || defined(U_TOOLUTIL_IMPLEMENTATION)
+#           define U_USING_ICU_NAMESPACE 0
+#       else
+#           define U_USING_ICU_NAMESPACE 0
+#       endif
+#   endif
+#   if U_USING_ICU_NAMESPACE
+        U_NAMESPACE_USE
+#   endif
+#else
+#   define U_NAMESPACE_BEGIN
+#   define U_NAMESPACE_END
+#   define U_NAMESPACE_USE
+#   define U_NAMESPACE_QUALIFIER
+#endif
+
+/*===========================================================================*/
+/* General version helper functions. Definitions in putil.c                  */
+/*===========================================================================*/
+
+/**
+ * Parse a string with dotted-decimal version information and
+ * fill in a UVersionInfo structure with the result.
+ * Definition of this function lives in putil.c
+ *
+ * @param versionArray The destination structure for the version information.
+ * @param versionString A string with dotted-decimal version information,
+ *                      with up to four non-negative number fields with
+ *                      values of up to 255 each.
+ * @stable ICU 2.4
+ */
+U_STABLE void U_EXPORT2
+u_versionFromString(UVersionInfo versionArray, const char *versionString);
+
+/**
+ * Parse a Unicode string with dotted-decimal version information and
+ * fill in a UVersionInfo structure with the result.
+ * Definition of this function lives in putil.c
+ *
+ * @param versionArray The destination structure for the version information.
+ * @param versionString A Unicode string with dotted-decimal version
+ *                      information, with up to four non-negative number
+ *                      fields with values of up to 255 each.
+ * @stable ICU 4.2
+ */
+U_STABLE void U_EXPORT2
+u_versionFromUString(UVersionInfo versionArray, const UChar *versionString);
+
+
+/**
+ * Write a string with dotted-decimal version information according
+ * to the input UVersionInfo.
+ * Definition of this function lives in putil.c
+ *
+ * @param versionArray The version information to be written as a string.
+ * @param versionString A string buffer that will be filled in with
+ *                      a string corresponding to the numeric version
+ *                      information in versionArray.
+ *                      The buffer size must be at least U_MAX_VERSION_STRING_LENGTH.
+ * @stable ICU 2.4
+ */
+U_STABLE void U_EXPORT2
+u_versionToString(const UVersionInfo versionArray, char *versionString);
+
+/**
+ * Gets the ICU release version.  The version array stores the version information
+ * for ICU.  For example, release "1.3.31.2" is then represented as 0x01031F02.
+ * Definition of this function lives in putil.c
+ *
+ * @param versionArray the version # information, the result will be filled in
+ * @stable ICU 2.0
+ */
+U_STABLE void U_EXPORT2
+u_getVersion(UVersionInfo versionArray);
+#endif
diff --git a/vendor/icu/src/cmemory.cpp b/vendor/icu/src/cmemory.cpp
new file mode 100644
index 0000000000..ebaa156224
--- /dev/null
+++ b/vendor/icu/src/cmemory.cpp
@@ -0,0 +1,138 @@
+// © 2016 and later: Unicode, Inc. and others.
+// License & terms of use: http://www.unicode.org/copyright.html
+/*
+******************************************************************************
+*
+*   Copyright (C) 2002-2015, International Business Machines
+*   Corporation and others.  All Rights Reserved.
+*
+******************************************************************************
+*
+* File cmemory.c      ICU Heap allocation.
+*                     All ICU heap allocation, both for C and C++ new of ICU
+*                     class types, comes through these functions.
+*
+*                     If you have a need to replace ICU allocation, this is the
+*                     place to do it.
+*
+*                     Note that uprv_malloc(0) returns a non-NULL pointer, and
+*                     that a subsequent free of that pointer value is a NOP.
+*
+******************************************************************************
+*/
+#include <unicode/uclean.h>
+#include "cmemory.h"
+#include "putilimp.h"
+#include "uassert.h"
+#include <stdlib.h>
+
+/* uprv_malloc(0) returns a pointer to this read-only data. */
+static const int32_t zeroMem[] = {0, 0, 0, 0, 0, 0};
+
+/* Function Pointers for user-supplied heap functions  */
+static const void     *pContext;
+static UMemAllocFn    *pAlloc;
+static UMemReallocFn  *pRealloc;
+static UMemFreeFn     *pFree;
+
+#if U_DEBUG && defined(UPRV_MALLOC_COUNT)
+#include <stdio.h>
+static int n=0;
+static long b=0; 
+#endif
+
+U_CAPI void * U_EXPORT2
+uprv_malloc(size_t s) {
+#if U_DEBUG && defined(UPRV_MALLOC_COUNT)
+#if 1
+  putchar('>');
+  fflush(stdout);
+#else
+  fprintf(stderr,"MALLOC\t#%d\t%ul bytes\t%ul total\n", ++n,s,(b+=s)); fflush(stderr);
+#endif
+#endif
+    if (s > 0) {
+        if (pAlloc) {
+            return (*pAlloc)(pContext, s);
+        } else {
+            return uprv_default_malloc(s);
+        }
+    } else {
+        return (void *)zeroMem;
+    }
+}
+
+U_CAPI void * U_EXPORT2
+uprv_realloc(void * buffer, size_t size) {
+#if U_DEBUG && defined(UPRV_MALLOC_COUNT)
+  putchar('~');
+  fflush(stdout);
+#endif
+    if (buffer == zeroMem) {
+        return uprv_malloc(size);
+    } else if (size == 0) {
+        if (pFree) {
+            (*pFree)(pContext, buffer);
+        } else {
+            uprv_default_free(buffer);
+        }
+        return (void *)zeroMem;
+    } else {
+        if (pRealloc) {
+            return (*pRealloc)(pContext, buffer, size);
+        } else {
+            return uprv_default_realloc(buffer, size);
+        }
+    }
+}
+
+U_CAPI void U_EXPORT2
+uprv_free(void *buffer) {
+#if U_DEBUG && defined(UPRV_MALLOC_COUNT)
+  putchar('<');
+  fflush(stdout);
+#endif
+    if (buffer != zeroMem) {
+        if (pFree) {
+            (*pFree)(pContext, buffer);
+        } else {
+            uprv_default_free(buffer);
+        }
+    }
+}
+
+U_CAPI void * U_EXPORT2
+uprv_calloc(size_t num, size_t size) {
+    void *mem = NULL;
+    size *= num;
+    mem = uprv_malloc(size);
+    if (mem) {
+        uprv_memset(mem, 0, size);
+    }
+    return mem;
+}
+
+U_CAPI void U_EXPORT2
+u_setMemoryFunctions(const void *context, UMemAllocFn *a, UMemReallocFn *r, UMemFreeFn *f,  UErrorCode *status)
+{
+    if (U_FAILURE(*status)) {
+        return;
+    }
+    if (a==NULL || r==NULL || f==NULL) {
+        *status = U_ILLEGAL_ARGUMENT_ERROR;
+        return;
+    }
+    pContext  = context;
+    pAlloc    = a;
+    pRealloc  = r;
+    pFree     = f;
+}
+
+
+U_CFUNC UBool cmemory_cleanup(void) {
+    pContext   = NULL;
+    pAlloc     = NULL;
+    pRealloc   = NULL;
+    pFree      = NULL;
+    return TRUE;
+}
diff --git a/vendor/icu/src/cmemory.h b/vendor/icu/src/cmemory.h
new file mode 100644
index 0000000000..2b97fd7460
--- /dev/null
+++ b/vendor/icu/src/cmemory.h
@@ -0,0 +1,638 @@
+// © 2016 and later: Unicode, Inc. and others.
+// License & terms of use: http://www.unicode.org/copyright.html
+/*
+******************************************************************************
+*
+*   Copyright (C) 1997-2016, International Business Machines
+*   Corporation and others.  All Rights Reserved.
+*
+******************************************************************************
+*
+* File CMEMORY.H
+*
+*  Contains stdlib.h/string.h memory functions
+*
+* @author       Bertrand A. Damiba
+*
+* Modification History:
+*
+*   Date        Name        Description
+*   6/20/98     Bertrand    Created.
+*  05/03/99     stephen     Changed from functions to macros.
+*
+******************************************************************************
+*/
+
+#ifndef CMEMORY_H
+#define CMEMORY_H
+
+#include <unicode/utypes.h>
+
+#include <stddef.h>
+#include <string.h>
+#include <unicode/localpointer.h>
+
+#if U_DEBUG && defined(UPRV_MALLOC_COUNT)
+#include <stdio.h>
+#endif
+
+
+#define uprv_memcpy(dst, src, size) U_STANDARD_CPP_NAMESPACE memcpy(dst, src, size)
+#define uprv_memmove(dst, src, size) U_STANDARD_CPP_NAMESPACE memmove(dst, src, size)
+
+/**
+ * \def UPRV_LENGTHOF
+ * Convenience macro to determine the length of a fixed array at compile-time.
+ * @param array A fixed length array
+ * @return The length of the array, in elements
+ * @internal
+ */
+#define UPRV_LENGTHOF(array) (int32_t)(sizeof(array)/sizeof((array)[0]))
+#define uprv_memset(buffer, mark, size) U_STANDARD_CPP_NAMESPACE memset(buffer, mark, size)
+#define uprv_memcmp(buffer1, buffer2, size) U_STANDARD_CPP_NAMESPACE memcmp(buffer1, buffer2,size)
+
+U_CAPI void * U_EXPORT2
+uprv_malloc(size_t s) U_MALLOC_ATTR U_ALLOC_SIZE_ATTR(1);
+
+U_CAPI void * U_EXPORT2
+uprv_realloc(void *mem, size_t size) U_ALLOC_SIZE_ATTR(2);
+
+U_CAPI void U_EXPORT2
+uprv_free(void *mem);
+
+U_CAPI void * U_EXPORT2
+uprv_calloc(size_t num, size_t size) U_MALLOC_ATTR U_ALLOC_SIZE_ATTR2(1,2);
+
+/**
+ * This should align the memory properly on any machine.
+ * This is very useful for the safeClone functions.
+ */
+typedef union {
+    long    t1;
+    double  t2;
+    void   *t3;
+} UAlignedMemory;
+
+/**
+ * Get the least significant bits of a pointer (a memory address).
+ * For example, with a mask of 3, the macro gets the 2 least significant bits,
+ * which will be 0 if the pointer is 32-bit (4-byte) aligned.
+ *
+ * ptrdiff_t is the most appropriate integer type to cast to.
+ * size_t should work too, since on most (or all?) platforms it has the same
+ * width as ptrdiff_t.
+ */
+#define U_POINTER_MASK_LSB(ptr, mask) (((ptrdiff_t)(char *)(ptr)) & (mask))
+
+/**
+ * Get the amount of bytes that a pointer is off by from
+ * the previous UAlignedMemory-aligned pointer.
+ */
+#define U_ALIGNMENT_OFFSET(ptr) U_POINTER_MASK_LSB(ptr, sizeof(UAlignedMemory) - 1)
+
+/**
+ * Get the amount of bytes to add to a pointer
+ * in order to get the next UAlignedMemory-aligned address.
+ */
+#define U_ALIGNMENT_OFFSET_UP(ptr) (sizeof(UAlignedMemory) - U_ALIGNMENT_OFFSET(ptr))
+
+/**
+  *  Heap clean up function, called from u_cleanup()
+  *    Clears any user heap functions from u_setMemoryFunctions()
+  *    Does NOT deallocate any remaining allocated memory.
+  */
+U_CFUNC UBool 
+cmemory_cleanup(void);
+
+/**
+ * A function called by <TT>uhash_remove</TT>,
+ * <TT>uhash_close</TT>, or <TT>uhash_put</TT> to delete
+ * an existing key or value.
+ * @param obj A key or value stored in a hashtable
+ * @see uprv_deleteUObject
+ */
+typedef void U_CALLCONV UObjectDeleter(void* obj);
+
+/**
+ * Deleter for UObject instances.
+ * Works for all subclasses of UObject because it has a virtual destructor.
+ */
+U_CAPI void U_EXPORT2
+uprv_deleteUObject(void *obj);
+
+#ifdef __cplusplus
+
+U_NAMESPACE_BEGIN
+
+/**
+ * "Smart pointer" class, deletes memory via uprv_free().
+ * For most methods see the LocalPointerBase base class.
+ * Adds operator[] for array item access.
+ *
+ * @see LocalPointerBase
+ */
+template<typename T>
+class LocalMemory : public LocalPointerBase<T> {
+public:
+    using LocalPointerBase<T>::operator*;
+    using LocalPointerBase<T>::operator->;
+    /**
+     * Constructor takes ownership.
+     * @param p simple pointer to an array of T items that is adopted
+     */
+    explicit LocalMemory(T *p=NULL) : LocalPointerBase<T>(p) {}
+    /**
+     * Move constructor, leaves src with isNull().
+     * @param src source smart pointer
+     */
+    LocalMemory(LocalMemory<T> &&src) U_NOEXCEPT : LocalPointerBase<T>(src.ptr) {
+        src.ptr=NULL;
+    }
+    /**
+     * Destructor deletes the memory it owns.
+     */
+    ~LocalMemory() {
+        uprv_free(LocalPointerBase<T>::ptr);
+    }
+    /**
+     * Move assignment operator, leaves src with isNull().
+     * The behavior is undefined if *this and src are the same object.
+     * @param src source smart pointer
+     * @return *this
+     */
+    LocalMemory<T> &operator=(LocalMemory<T> &&src) U_NOEXCEPT {
+        return moveFrom(src);
+    }
+    /**
+     * Move assignment, leaves src with isNull().
+     * The behavior is undefined if *this and src are the same object.
+     *
+     * Can be called explicitly, does not need C++11 support.
+     * @param src source smart pointer
+     * @return *this
+     */
+    LocalMemory<T> &moveFrom(LocalMemory<T> &src) U_NOEXCEPT {
+        delete[] LocalPointerBase<T>::ptr;
+        LocalPointerBase<T>::ptr=src.ptr;
+        src.ptr=NULL;
+        return *this;
+    }
+    /**
+     * Swap pointers.
+     * @param other other smart pointer
+     */
+    void swap(LocalMemory<T> &other) U_NOEXCEPT {
+        T *temp=LocalPointerBase<T>::ptr;
+        LocalPointerBase<T>::ptr=other.ptr;
+        other.ptr=temp;
+    }
+    /**
+     * Non-member LocalMemory swap function.
+     * @param p1 will get p2's pointer
+     * @param p2 will get p1's pointer
+     */
+    friend inline void swap(LocalMemory<T> &p1, LocalMemory<T> &p2) U_NOEXCEPT {
+        p1.swap(p2);
+    }
+    /**
+     * Deletes the array it owns,
+     * and adopts (takes ownership of) the one passed in.
+     * @param p simple pointer to an array of T items that is adopted
+     */
+    void adoptInstead(T *p) {
+        uprv_free(LocalPointerBase<T>::ptr);
+        LocalPointerBase<T>::ptr=p;
+    }
+    /**
+     * Deletes the array it owns, allocates a new one and reset its bytes to 0.
+     * Returns the new array pointer.
+     * If the allocation fails, then the current array is unchanged and
+     * this method returns NULL.
+     * @param newCapacity must be >0
+     * @return the allocated array pointer, or NULL if the allocation failed
+     */
+    inline T *allocateInsteadAndReset(int32_t newCapacity=1);
+    /**
+     * Deletes the array it owns and allocates a new one, copying length T items.
+     * Returns the new array pointer.
+     * If the allocation fails, then the current array is unchanged and
+     * this method returns NULL.
+     * @param newCapacity must be >0
+     * @param length number of T items to be copied from the old array to the new one;
+     *               must be no more than the capacity of the old array,
+     *               which the caller must track because the LocalMemory does not track it
+     * @return the allocated array pointer, or NULL if the allocation failed
+     */
+    inline T *allocateInsteadAndCopy(int32_t newCapacity=1, int32_t length=0);
+    /**
+     * Array item access (writable).
+     * No index bounds check.
+     * @param i array index
+     * @return reference to the array item
+     */
+    T &operator[](ptrdiff_t i) const { return LocalPointerBase<T>::ptr[i]; }
+};
+
+template<typename T>
+inline T *LocalMemory<T>::allocateInsteadAndReset(int32_t newCapacity) {
+    if(newCapacity>0) {
+        T *p=(T *)uprv_malloc(newCapacity*sizeof(T));
+        if(p!=NULL) {
+            uprv_memset(p, 0, newCapacity*sizeof(T));
+            uprv_free(LocalPointerBase<T>::ptr);
+            LocalPointerBase<T>::ptr=p;
+        }
+        return p;
+    } else {
+        return NULL;
+    }
+}
+
+
+template<typename T>
+inline T *LocalMemory<T>::allocateInsteadAndCopy(int32_t newCapacity, int32_t length) {
+    if(newCapacity>0) {
+        T *p=(T *)uprv_malloc(newCapacity*sizeof(T));
+        if(p!=NULL) {
+            if(length>0) {
+                if(length>newCapacity) {
+                    length=newCapacity;
+                }
+                uprv_memcpy(p, LocalPointerBase<T>::ptr, (size_t)length*sizeof(T));
+            }
+            uprv_free(LocalPointerBase<T>::ptr);
+            LocalPointerBase<T>::ptr=p;
+        }
+        return p;
+    } else {
+        return NULL;
+    }
+}
+
+/**
+ * Simple array/buffer management class using uprv_malloc() and uprv_free().
+ * Provides an internal array with fixed capacity. Can alias another array
+ * or allocate one.
+ *
+ * The array address is properly aligned for type T. It might not be properly
+ * aligned for types larger than T (or larger than the largest subtype of T).
+ *
+ * Unlike LocalMemory and LocalArray, this class never adopts
+ * (takes ownership of) another array.
+ */
+template<typename T, int32_t stackCapacity>
+class MaybeStackArray {
+public:
+    /**
+     * Default constructor initializes with internal T[stackCapacity] buffer.
+     */
+    MaybeStackArray() : ptr(stackArray), capacity(stackCapacity), needToRelease(FALSE) {}
+    /**
+     * Automatically allocates the heap array if the argument is larger than the stack capacity.
+     * Intended for use when an approximate capacity is known at compile time but the true
+     * capacity is not known until runtime.
+     */
+    MaybeStackArray(int32_t newCapacity) : MaybeStackArray() {
+        if (capacity < newCapacity) { resize(newCapacity); }
+    };
+    /**
+     * Destructor deletes the array (if owned).
+     */
+    ~MaybeStackArray() { releaseArray(); }
+    /**
+     * Returns the array capacity (number of T items).
+     * @return array capacity
+     */
+    int32_t getCapacity() const { return capacity; }
+    /**
+     * Access without ownership change.
+     * @return the array pointer
+     */
+    T *getAlias() const { return ptr; }
+    /**
+     * Returns the array limit. Simple convenience method.
+     * @return getAlias()+getCapacity()
+     */
+    T *getArrayLimit() const { return getAlias()+capacity; }
+    // No "operator T *() const" because that can make
+    // expressions like mbs[index] ambiguous for some compilers.
+    /**
+     * Array item access (const).
+     * No index bounds check.
+     * @param i array index
+     * @return reference to the array item
+     */
+    const T &operator[](ptrdiff_t i) const { return ptr[i]; }
+    /**
+     * Array item access (writable).
+     * No index bounds check.
+     * @param i array index
+     * @return reference to the array item
+     */
+    T &operator[](ptrdiff_t i) { return ptr[i]; }
+    /**
+     * Deletes the array (if owned) and aliases another one, no transfer of ownership.
+     * If the arguments are illegal, then the current array is unchanged.
+     * @param otherArray must not be NULL
+     * @param otherCapacity must be >0
+     */
+    void aliasInstead(T *otherArray, int32_t otherCapacity) {
+        if(otherArray!=NULL && otherCapacity>0) {
+            releaseArray();
+            ptr=otherArray;
+            capacity=otherCapacity;
+            needToRelease=FALSE;
+        }
+    }
+    /**
+     * Deletes the array (if owned) and allocates a new one, copying length T items.
+     * Returns the new array pointer.
+     * If the allocation fails, then the current array is unchanged and
+     * this method returns NULL.
+     * @param newCapacity can be less than or greater than the current capacity;
+     *                    must be >0
+     * @param length number of T items to be copied from the old array to the new one
+     * @return the allocated array pointer, or NULL if the allocation failed
+     */
+    inline T *resize(int32_t newCapacity, int32_t length=0);
+    /**
+     * Gives up ownership of the array if owned, or else clones it,
+     * copying length T items; resets itself to the internal stack array.
+     * Returns NULL if the allocation failed.
+     * @param length number of T items to copy when cloning,
+     *        and capacity of the clone when cloning
+     * @param resultCapacity will be set to the returned array's capacity (output-only)
+     * @return the array pointer;
+     *         caller becomes responsible for deleting the array
+     */
+    inline T *orphanOrClone(int32_t length, int32_t &resultCapacity);
+private:
+    T *ptr;
+    int32_t capacity;
+    UBool needToRelease;
+    T stackArray[stackCapacity];
+    void releaseArray() {
+        if(needToRelease) {
+            uprv_free(ptr);
+        }
+    }
+    /* No comparison operators with other MaybeStackArray's. */
+    bool operator==(const MaybeStackArray & /*other*/) {return FALSE;}
+    bool operator!=(const MaybeStackArray & /*other*/) {return TRUE;}
+    /* No ownership transfer: No copy constructor, no assignment operator. */
+    MaybeStackArray(const MaybeStackArray & /*other*/) {}
+    void operator=(const MaybeStackArray & /*other*/) {}
+
+    // No heap allocation. Use only on the stack.
+    //   (Declaring these functions private triggers a cascade of problems:
+    //      MSVC insists on exporting an instantiation of MaybeStackArray, which
+    //      requires that all functions be defined.
+    //      An empty implementation of new() is rejected, it must return a value.
+    //      Returning NULL is rejected by gcc for operator new.
+    //      The expedient thing is just not to override operator new.
+    //      While relatively pointless, heap allocated instances will function.
+    // static void * U_EXPORT2 operator new(size_t size); 
+    // static void * U_EXPORT2 operator new[](size_t size);
+#if U_HAVE_PLACEMENT_NEW
+    // static void * U_EXPORT2 operator new(size_t, void *ptr);
+#endif
+};
+
+template<typename T, int32_t stackCapacity>
+inline T *MaybeStackArray<T, stackCapacity>::resize(int32_t newCapacity, int32_t length) {
+    if(newCapacity>0) {
+#if U_DEBUG && defined(UPRV_MALLOC_COUNT)
+      ::fprintf(::stderr,"MaybeStacArray (resize) alloc %d * %lu\n", newCapacity,sizeof(T));
+#endif
+        T *p=(T *)uprv_malloc(newCapacity*sizeof(T));
+        if(p!=NULL) {
+            if(length>0) {
+                if(length>capacity) {
+                    length=capacity;
+                }
+                if(length>newCapacity) {
+                    length=newCapacity;
+                }
+                uprv_memcpy(p, ptr, (size_t)length*sizeof(T));
+            }
+            releaseArray();
+            ptr=p;
+            capacity=newCapacity;
+            needToRelease=TRUE;
+        }
+        return p;
+    } else {
+        return NULL;
+    }
+}
+
+template<typename T, int32_t stackCapacity>
+inline T *MaybeStackArray<T, stackCapacity>::orphanOrClone(int32_t length, int32_t &resultCapacity) {
+    T *p;
+    if(needToRelease) {
+        p=ptr;
+    } else if(length<=0) {
+        return NULL;
+    } else {
+        if(length>capacity) {
+            length=capacity;
+        }
+        p=(T *)uprv_malloc(length*sizeof(T));
+#if U_DEBUG && defined(UPRV_MALLOC_COUNT)
+      ::fprintf(::stderr,"MaybeStacArray (orphan) alloc %d * %lu\n", length,sizeof(T));
+#endif
+        if(p==NULL) {
+            return NULL;
+        }
+        uprv_memcpy(p, ptr, (size_t)length*sizeof(T));
+    }
+    resultCapacity=length;
+    ptr=stackArray;
+    capacity=stackCapacity;
+    needToRelease=FALSE;
+    return p;
+}
+
+/**
+ * Variant of MaybeStackArray that allocates a header struct and an array
+ * in one contiguous memory block, using uprv_malloc() and uprv_free().
+ * Provides internal memory with fixed array capacity. Can alias another memory
+ * block or allocate one.
+ * The stackCapacity is the number of T items in the internal memory,
+ * not counting the H header.
+ * Unlike LocalMemory and LocalArray, this class never adopts
+ * (takes ownership of) another memory block.
+ */
+template<typename H, typename T, int32_t stackCapacity>
+class MaybeStackHeaderAndArray {
+public:
+    /**
+     * Default constructor initializes with internal H+T[stackCapacity] buffer.
+     */
+    MaybeStackHeaderAndArray() : ptr(&stackHeader), capacity(stackCapacity), needToRelease(FALSE) {}
+    /**
+     * Destructor deletes the memory (if owned).
+     */
+    ~MaybeStackHeaderAndArray() { releaseMemory(); }
+    /**
+     * Returns the array capacity (number of T items).
+     * @return array capacity
+     */
+    int32_t getCapacity() const { return capacity; }
+    /**
+     * Access without ownership change.
+     * @return the header pointer
+     */
+    H *getAlias() const { return ptr; }
+    /**
+     * Returns the array start.
+     * @return array start, same address as getAlias()+1
+     */
+    T *getArrayStart() const { return reinterpret_cast<T *>(getAlias()+1); }
+    /**
+     * Returns the array limit.
+     * @return array limit
+     */
+    T *getArrayLimit() const { return getArrayStart()+capacity; }
+    /**
+     * Access without ownership change. Same as getAlias().
+     * A class instance can be used directly in expressions that take a T *.
+     * @return the header pointer
+     */
+    operator H *() const { return ptr; }
+    /**
+     * Array item access (writable).
+     * No index bounds check.
+     * @param i array index
+     * @return reference to the array item
+     */
+    T &operator[](ptrdiff_t i) { return getArrayStart()[i]; }
+    /**
+     * Deletes the memory block (if owned) and aliases another one, no transfer of ownership.
+     * If the arguments are illegal, then the current memory is unchanged.
+     * @param otherArray must not be NULL
+     * @param otherCapacity must be >0
+     */
+    void aliasInstead(H *otherMemory, int32_t otherCapacity) {
+        if(otherMemory!=NULL && otherCapacity>0) {
+            releaseMemory();
+            ptr=otherMemory;
+            capacity=otherCapacity;
+            needToRelease=FALSE;
+        }
+    }
+    /**
+     * Deletes the memory block (if owned) and allocates a new one,
+     * copying the header and length T array items.
+     * Returns the new header pointer.
+     * If the allocation fails, then the current memory is unchanged and
+     * this method returns NULL.
+     * @param newCapacity can be less than or greater than the current capacity;
+     *                    must be >0
+     * @param length number of T items to be copied from the old array to the new one
+     * @return the allocated pointer, or NULL if the allocation failed
+     */
+    inline H *resize(int32_t newCapacity, int32_t length=0);
+    /**
+     * Gives up ownership of the memory if owned, or else clones it,
+     * copying the header and length T array items; resets itself to the internal memory.
+     * Returns NULL if the allocation failed.
+     * @param length number of T items to copy when cloning,
+     *        and array capacity of the clone when cloning
+     * @param resultCapacity will be set to the returned array's capacity (output-only)
+     * @return the header pointer;
+     *         caller becomes responsible for deleting the array
+     */
+    inline H *orphanOrClone(int32_t length, int32_t &resultCapacity);
+private:
+    H *ptr;
+    int32_t capacity;
+    UBool needToRelease;
+    // stackHeader must precede stackArray immediately.
+    H stackHeader;
+    T stackArray[stackCapacity];
+    void releaseMemory() {
+        if(needToRelease) {
+            uprv_free(ptr);
+        }
+    }
+    /* No comparison operators with other MaybeStackHeaderAndArray's. */
+    bool operator==(const MaybeStackHeaderAndArray & /*other*/) {return FALSE;}
+    bool operator!=(const MaybeStackHeaderAndArray & /*other*/) {return TRUE;}
+    /* No ownership transfer: No copy constructor, no assignment operator. */
+    MaybeStackHeaderAndArray(const MaybeStackHeaderAndArray & /*other*/) {}
+    void operator=(const MaybeStackHeaderAndArray & /*other*/) {}
+
+    // No heap allocation. Use only on the stack.
+    //   (Declaring these functions private triggers a cascade of problems;
+    //    see the MaybeStackArray class for details.)
+    // static void * U_EXPORT2 operator new(size_t size); 
+    // static void * U_EXPORT2 operator new[](size_t size);
+#if U_HAVE_PLACEMENT_NEW
+    // static void * U_EXPORT2 operator new(size_t, void *ptr);
+#endif
+};
+
+template<typename H, typename T, int32_t stackCapacity>
+inline H *MaybeStackHeaderAndArray<H, T, stackCapacity>::resize(int32_t newCapacity,
+                                                                int32_t length) {
+    if(newCapacity>=0) {
+#if U_DEBUG && defined(UPRV_MALLOC_COUNT)
+      ::fprintf(::stderr,"MaybeStackHeaderAndArray alloc %d + %d * %ul\n", sizeof(H),newCapacity,sizeof(T));
+#endif
+        H *p=(H *)uprv_malloc(sizeof(H)+newCapacity*sizeof(T));
+        if(p!=NULL) {
+            if(length<0) {
+                length=0;
+            } else if(length>0) {
+                if(length>capacity) {
+                    length=capacity;
+                }
+                if(length>newCapacity) {
+                    length=newCapacity;
+                }
+            }
+            uprv_memcpy(p, ptr, sizeof(H)+(size_t)length*sizeof(T));
+            releaseMemory();
+            ptr=p;
+            capacity=newCapacity;
+            needToRelease=TRUE;
+        }
+        return p;
+    } else {
+        return NULL;
+    }
+}
+
+template<typename H, typename T, int32_t stackCapacity>
+inline H *MaybeStackHeaderAndArray<H, T, stackCapacity>::orphanOrClone(int32_t length,
+                                                                       int32_t &resultCapacity) {
+    H *p;
+    if(needToRelease) {
+        p=ptr;
+    } else {
+        if(length<0) {
+            length=0;
+        } else if(length>capacity) {
+            length=capacity;
+        }
+#if U_DEBUG && defined(UPRV_MALLOC_COUNT)
+      ::fprintf(::stderr,"MaybeStackHeaderAndArray (orphan) alloc %ul + %d * %lu\n", sizeof(H),length,sizeof(T));
+#endif
+        p=(H *)uprv_malloc(sizeof(H)+length*sizeof(T));
+        if(p==NULL) {
+            return NULL;
+        }
+        uprv_memcpy(p, ptr, sizeof(H)+(size_t)length*sizeof(T));
+    }
+    resultCapacity=length;
+    ptr=&stackHeader;
+    capacity=stackCapacity;
+    needToRelease=FALSE;
+    return p;
+}
+
+U_NAMESPACE_END
+
+#endif  /* __cplusplus */
+#endif  /* CMEMORY_H */
diff --git a/vendor/icu/src/cstring.cpp b/vendor/icu/src/cstring.cpp
new file mode 100644
index 0000000000..79a62c8d0e
--- /dev/null
+++ b/vendor/icu/src/cstring.cpp
@@ -0,0 +1,341 @@
+// © 2016 and later: Unicode, Inc. and others.
+// License & terms of use: http://www.unicode.org/copyright.html
+/*
+******************************************************************************
+*
+*   Copyright (C) 1997-2011, International Business Machines
+*   Corporation and others.  All Rights Reserved.
+*
+******************************************************************************
+*
+* File CSTRING.C
+*
+* @author       Helena Shih
+*
+* Modification History:
+*
+*   Date        Name        Description
+*   6/18/98     hshih       Created
+*   09/08/98    stephen     Added include for ctype, for Mac Port
+*   11/15/99    helena      Integrated S/390 IEEE changes. 
+******************************************************************************
+*/
+
+
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <unicode/utypes.h>
+#include "cmemory.h"
+#include "cstring.h"
+#include "uassert.h"
+
+/*
+ * We hardcode case conversion for invariant characters to match our expectation
+ * and the compiler execution charset.
+ * This prevents problems on systems
+ * - with non-default casing behavior, like Turkish system locales where
+ *   tolower('I') maps to dotless i and toupper('i') maps to dotted I
+ * - where there are no lowercase Latin characters at all, or using different
+ *   codes (some old EBCDIC codepages)
+ *
+ * This works because the compiler usually runs on a platform where the execution
+ * charset includes all of the invariant characters at their expected
+ * code positions, so that the char * string literals in ICU code match
+ * the char literals here.
+ *
+ * Note that the set of lowercase Latin letters is discontiguous in EBCDIC
+ * and the set of uppercase Latin letters is discontiguous as well.
+ */
+
+U_CAPI UBool U_EXPORT2
+uprv_isASCIILetter(char c) {
+#if U_CHARSET_FAMILY==U_EBCDIC_FAMILY
+    return
+        ('a'<=c && c<='i') || ('j'<=c && c<='r') || ('s'<=c && c<='z') ||
+        ('A'<=c && c<='I') || ('J'<=c && c<='R') || ('S'<=c && c<='Z');
+#else
+    return ('a'<=c && c<='z') || ('A'<=c && c<='Z');
+#endif
+}
+
+U_CAPI char U_EXPORT2
+uprv_toupper(char c) {
+#if U_CHARSET_FAMILY==U_EBCDIC_FAMILY
+    if(('a'<=c && c<='i') || ('j'<=c && c<='r') || ('s'<=c && c<='z')) {
+        c=(char)(c+('A'-'a'));
+    }
+#else
+    if('a'<=c && c<='z') {
+        c=(char)(c+('A'-'a'));
+    }
+#endif
+    return c;
+}
+
+
+#if 0
+/*
+ * Commented out because cstring.h defines uprv_tolower() to be
+ * the same as either uprv_asciitolower() or uprv_ebcdictolower()
+ * to reduce the amount of code to cover with tests.
+ *
+ * Note that this uprv_tolower() definition is likely to work for most
+ * charset families, not just ASCII and EBCDIC, because its #else branch
+ * is written generically.
+ */
+U_CAPI char U_EXPORT2
+uprv_tolower(char c) {
+#if U_CHARSET_FAMILY==U_EBCDIC_FAMILY
+    if(('A'<=c && c<='I') || ('J'<=c && c<='R') || ('S'<=c && c<='Z')) {
+        c=(char)(c+('a'-'A'));
+    }
+#else
+    if('A'<=c && c<='Z') {
+        c=(char)(c+('a'-'A'));
+    }
+#endif
+    return c;
+}
+#endif
+
+U_CAPI char U_EXPORT2
+uprv_asciitolower(char c) {
+    if(0x41<=c && c<=0x5a) {
+        c=(char)(c+0x20);
+    }
+    return c;
+}
+
+U_CAPI char U_EXPORT2
+uprv_ebcdictolower(char c) {
+    if( (0xc1<=(uint8_t)c && (uint8_t)c<=0xc9) ||
+        (0xd1<=(uint8_t)c && (uint8_t)c<=0xd9) ||
+        (0xe2<=(uint8_t)c && (uint8_t)c<=0xe9)
+    ) {
+        c=(char)(c-0x40);
+    }
+    return c;
+}
+
+
+U_CAPI char* U_EXPORT2
+T_CString_toLowerCase(char* str)
+{
+    char* origPtr = str;
+
+    if (str) {
+        do
+            *str = (char)uprv_tolower(*str);
+        while (*(str++));
+    }
+
+    return origPtr;
+}
+
+U_CAPI char* U_EXPORT2
+T_CString_toUpperCase(char* str)
+{
+    char* origPtr = str;
+
+    if (str) {
+        do
+            *str = (char)uprv_toupper(*str);
+        while (*(str++));
+    }
+
+    return origPtr;
+}
+
+/*
+ * Takes a int32_t and fills in  a char* string with that number "radix"-based.
+ * Does not handle negative values (makes an empty string for them).
+ * Writes at most 12 chars ("-2147483647" plus NUL).
+ * Returns the length of the string (not including the NUL).
+ */
+U_CAPI int32_t U_EXPORT2
+T_CString_integerToString(char* buffer, int32_t v, int32_t radix)
+{
+    char      tbuf[30];
+    int32_t   tbx    = sizeof(tbuf);
+    uint8_t   digit;
+    int32_t   length = 0;
+    uint32_t  uval;
+    
+    U_ASSERT(radix>=2 && radix<=16);
+    uval = (uint32_t) v;
+    if(v<0 && radix == 10) {
+        /* Only in base 10 do we conside numbers to be signed. */
+        uval = (uint32_t)(-v); 
+        buffer[length++] = '-';
+    }
+    
+    tbx = sizeof(tbuf)-1;
+    tbuf[tbx] = 0;   /* We are generating the digits backwards.  Null term the end. */
+    do {
+        digit = (uint8_t)(uval % radix);
+        tbuf[--tbx] = (char)(T_CString_itosOffset(digit));
+        uval  = uval / radix;
+    } while (uval != 0);
+    
+    /* copy converted number into user buffer  */
+    uprv_strcpy(buffer+length, tbuf+tbx);
+    length += sizeof(tbuf) - tbx -1;
+    return length;
+}
+
+
+
+/*
+ * Takes a int64_t and fills in  a char* string with that number "radix"-based.
+ * Writes at most 21: chars ("-9223372036854775807" plus NUL).
+ * Returns the length of the string, not including the terminating NULL.
+ */
+U_CAPI int32_t U_EXPORT2
+T_CString_int64ToString(char* buffer, int64_t v, uint32_t radix)
+{
+    char      tbuf[30];
+    int32_t   tbx    = sizeof(tbuf);
+    uint8_t   digit;
+    int32_t   length = 0;
+    uint64_t  uval;
+    
+    U_ASSERT(radix>=2 && radix<=16);
+    uval = (uint64_t) v;
+    if(v<0 && radix == 10) {
+        /* Only in base 10 do we conside numbers to be signed. */
+        uval = (uint64_t)(-v); 
+        buffer[length++] = '-';
+    }
+    
+    tbx = sizeof(tbuf)-1;
+    tbuf[tbx] = 0;   /* We are generating the digits backwards.  Null term the end. */
+    do {
+        digit = (uint8_t)(uval % radix);
+        tbuf[--tbx] = (char)(T_CString_itosOffset(digit));
+        uval  = uval / radix;
+    } while (uval != 0);
+    
+    /* copy converted number into user buffer  */
+    uprv_strcpy(buffer+length, tbuf+tbx);
+    length += sizeof(tbuf) - tbx -1;
+    return length;
+}
+
+
+U_CAPI int32_t U_EXPORT2
+T_CString_stringToInteger(const char *integerString, int32_t radix)
+{
+    char *end;
+    return uprv_strtoul(integerString, &end, radix);
+
+}
+
+U_CAPI int U_EXPORT2
+uprv_stricmp(const char *str1, const char *str2) {
+    if(str1==NULL) {
+        if(str2==NULL) {
+            return 0;
+        } else {
+            return -1;
+        }
+    } else if(str2==NULL) {
+        return 1;
+    } else {
+        /* compare non-NULL strings lexically with lowercase */
+        int rc;
+        unsigned char c1, c2;
+
+        for(;;) {
+            c1=(unsigned char)*str1;
+            c2=(unsigned char)*str2;
+            if(c1==0) {
+                if(c2==0) {
+                    return 0;
+                } else {
+                    return -1;
+                }
+            } else if(c2==0) {
+                return 1;
+            } else {
+                /* compare non-zero characters with lowercase */
+                rc=(int)(unsigned char)uprv_tolower(c1)-(int)(unsigned char)uprv_tolower(c2);
+                if(rc!=0) {
+                    return rc;
+                }
+            }
+            ++str1;
+            ++str2;
+        }
+    }
+}
+
+U_CAPI int U_EXPORT2
+uprv_strnicmp(const char *str1, const char *str2, uint32_t n) {
+    if(str1==NULL) {
+        if(str2==NULL) {
+            return 0;
+        } else {
+            return -1;
+        }
+    } else if(str2==NULL) {
+        return 1;
+    } else {
+        /* compare non-NULL strings lexically with lowercase */
+        int rc;
+        unsigned char c1, c2;
+
+        for(; n--;) {
+            c1=(unsigned char)*str1;
+            c2=(unsigned char)*str2;
+            if(c1==0) {
+                if(c2==0) {
+                    return 0;
+                } else {
+                    return -1;
+                }
+            } else if(c2==0) {
+                return 1;
+            } else {
+                /* compare non-zero characters with lowercase */
+                rc=(int)(unsigned char)uprv_tolower(c1)-(int)(unsigned char)uprv_tolower(c2);
+                if(rc!=0) {
+                    return rc;
+                }
+            }
+            ++str1;
+            ++str2;
+        }
+    }
+
+    return 0;
+}
+
+U_CAPI char* U_EXPORT2
+uprv_strdup(const char *src) {
+    size_t len = uprv_strlen(src) + 1;
+    char *dup = (char *) uprv_malloc(len);
+
+    if (dup) {
+        uprv_memcpy(dup, src, len);
+    }
+
+    return dup;
+}
+
+U_CAPI char* U_EXPORT2
+uprv_strndup(const char *src, int32_t n) {
+    char *dup;
+
+    if(n < 0) {
+        dup = uprv_strdup(src);
+    } else {
+        dup = (char*)uprv_malloc(n+1);
+        if (dup) { 
+            uprv_memcpy(dup, src, n);
+            dup[n] = 0;
+        }
+    }
+
+    return dup;
+}
diff --git a/vendor/icu/src/cstring.h b/vendor/icu/src/cstring.h
new file mode 100644
index 0000000000..8efeede793
--- /dev/null
+++ b/vendor/icu/src/cstring.h
@@ -0,0 +1,124 @@
+// © 2016 and later: Unicode, Inc. and others.
+// License & terms of use: http://www.unicode.org/copyright.html
+/*
+******************************************************************************
+*
+*   Copyright (C) 1997-2012, International Business Machines
+*   Corporation and others.  All Rights Reserved.
+*
+******************************************************************************
+*
+* File CSTRING.H
+*
+* Contains CString interface
+*
+* @author       Helena Shih
+*
+* Modification History:
+*
+*   Date        Name        Description
+*   6/17/98     hshih       Created.
+*  05/03/99     stephen     Changed from functions to macros.
+*  06/14/99     stephen     Added icu_strncat, icu_strncmp, icu_tolower
+*
+******************************************************************************
+*/
+
+#ifndef CSTRING_H
+#define CSTRING_H 1
+
+#include <unicode/utypes.h>
+#include "cmemory.h"
+#include <string.h>
+#include <stdlib.h>
+#include <ctype.h>
+
+#define uprv_strcpy(dst, src) U_STANDARD_CPP_NAMESPACE  strcpy(dst, src)
+#define uprv_strlen(str) U_STANDARD_CPP_NAMESPACE strlen(str)
+#define uprv_strcmp(s1, s2) U_STANDARD_CPP_NAMESPACE strcmp(s1, s2)
+#define uprv_strcat(dst, src) U_STANDARD_CPP_NAMESPACE strcat(dst, src)
+#define uprv_strchr(s, c) U_STANDARD_CPP_NAMESPACE strchr(s, c)
+#define uprv_strstr(s, c) U_STANDARD_CPP_NAMESPACE strstr(s, c)
+#define uprv_strrchr(s, c) U_STANDARD_CPP_NAMESPACE strrchr(s, c)
+#define uprv_strncpy(dst, src, size) U_STANDARD_CPP_NAMESPACE strncpy(dst, src, size)
+#define uprv_strncmp(s1, s2, n) U_STANDARD_CPP_NAMESPACE strncmp(s1, s2, n)
+#define uprv_strncat(dst, src, n) U_STANDARD_CPP_NAMESPACE strncat(dst, src, n)
+
+/**
+ * Is c an ASCII-repertoire letter a-z or A-Z?
+ * Note: The implementation is specific to whether ICU is compiled for
+ * an ASCII-based or EBCDIC-based machine. There just does not seem to be a better name for this.
+ */
+U_CAPI UBool U_EXPORT2
+uprv_isASCIILetter(char c);
+
+U_CAPI char U_EXPORT2
+uprv_toupper(char c);
+
+
+U_CAPI char U_EXPORT2
+uprv_asciitolower(char c);
+
+U_CAPI char U_EXPORT2
+uprv_ebcdictolower(char c);
+
+#if U_CHARSET_FAMILY==U_ASCII_FAMILY
+#   define uprv_tolower uprv_asciitolower
+#elif U_CHARSET_FAMILY==U_EBCDIC_FAMILY
+#   define uprv_tolower uprv_ebcdictolower
+#else
+#   error U_CHARSET_FAMILY is not valid
+#endif
+
+#define uprv_strtod(source, end) U_STANDARD_CPP_NAMESPACE strtod(source, end)
+#define uprv_strtoul(str, end, base) U_STANDARD_CPP_NAMESPACE strtoul(str, end, base)
+#define uprv_strtol(str, end, base) U_STANDARD_CPP_NAMESPACE strtol(str, end, base)
+
+/* Conversion from a digit to the character with radix base from 2-19 */
+/* May need to use U_UPPER_ORDINAL*/
+#define T_CString_itosOffset(a) ((a)<=9?('0'+(a)):('A'+(a)-10))
+
+U_CAPI char* U_EXPORT2
+uprv_strdup(const char *src);
+
+/**
+ * uprv_malloc n+1 bytes, and copy n bytes from src into the new string.
+ * Terminate with a null at offset n.   If n is -1, works like uprv_strdup
+ * @param src
+ * @param n length of the input string, not including null.
+ * @return new string (owned by caller, use uprv_free to free).
+ * @internal
+ */
+U_CAPI char* U_EXPORT2
+uprv_strndup(const char *src, int32_t n);
+
+U_CAPI char* U_EXPORT2
+T_CString_toLowerCase(char* str);
+
+U_CAPI char* U_EXPORT2
+T_CString_toUpperCase(char* str);
+
+U_CAPI int32_t U_EXPORT2
+T_CString_integerToString(char *buffer, int32_t n, int32_t radix);
+
+U_CAPI int32_t U_EXPORT2
+T_CString_int64ToString(char *buffer, int64_t n, uint32_t radix);
+
+U_CAPI int32_t U_EXPORT2
+T_CString_stringToInteger(const char *integerString, int32_t radix);
+
+/**
+ * Case-insensitive, language-independent string comparison
+ * limited to the ASCII character repertoire.
+ */
+U_CAPI int U_EXPORT2
+uprv_stricmp(const char *str1, const char *str2);
+
+/**
+ * Case-insensitive, language-independent string comparison
+ * limited to the ASCII character repertoire.
+ */
+U_CAPI int U_EXPORT2
+uprv_strnicmp(const char *str1, const char *str2, uint32_t n);
+
+#endif /* ! CSTRING_H */
diff --git a/vendor/icu/src/cwchar.h b/vendor/icu/src/cwchar.h
new file mode 100644
index 0000000000..5040f74d3c
--- /dev/null
+++ b/vendor/icu/src/cwchar.h
@@ -0,0 +1,58 @@
+// © 2016 and later: Unicode, Inc. and others.
+// License & terms of use: http://www.unicode.org/copyright.html
+/*  
+******************************************************************************
+*
+*   Copyright (C) 2001, International Business Machines
+*   Corporation and others.  All Rights Reserved.
+*
+******************************************************************************
+*   file name:  cwchar.h
+*   encoding:   UTF-8
+*   tab size:   8 (not used)
+*   indentation:4
+*
+*   created on: 2001may25
+*   created by: Markus W. Scherer
+*
+*   This file contains ICU-internal definitions of wchar_t operations.
+*   These definitions were moved here from cstring.h so that fewer
+*   ICU implementation files include wchar.h.
+*/
+
+#ifndef __CWCHAR_H__
+#define __CWCHAR_H__
+
+#include <string.h>
+#include <stdlib.h>
+#include <unicode/utypes.h>
+
+/* Do this after utypes.h so that we have U_HAVE_WCHAR_H . */
+#if U_HAVE_WCHAR_H
+#   include <wchar.h>
+#endif
+
+/*===========================================================================*/
+/* Wide-character functions                                                  */
+/*===========================================================================*/
+
+/* The following are not available on all systems, defined in wchar.h or string.h. */
+#if U_HAVE_WCSCPY
+#   define uprv_wcscpy wcscpy
+#   define uprv_wcscat wcscat
+#   define uprv_wcslen wcslen
+#else
+U_CAPI wchar_t* U_EXPORT2 
+uprv_wcscpy(wchar_t *dst, const wchar_t *src);
+U_CAPI wchar_t* U_EXPORT2 
+uprv_wcscat(wchar_t *dst, const wchar_t *src);
+U_CAPI size_t U_EXPORT2 
+uprv_wcslen(const wchar_t *src);
+#endif
+
+/* The following are part of the ANSI C standard, defined in stdlib.h . */
+#define uprv_wcstombs(mbstr, wcstr, count) U_STANDARD_CPP_NAMESPACE wcstombs(mbstr, wcstr, count)
+#define uprv_mbstowcs(wcstr, mbstr, count) U_STANDARD_CPP_NAMESPACE mbstowcs(wcstr, mbstr, count)
+
+
+#endif
diff --git a/vendor/icu/src/mutex.h b/vendor/icu/src/mutex.h
new file mode 100644
index 0000000000..959330500f
--- /dev/null
+++ b/vendor/icu/src/mutex.h
@@ -0,0 +1,79 @@
+// © 2016 and later: Unicode, Inc. and others.
+// License & terms of use: http://www.unicode.org/copyright.html
+/*
+******************************************************************************
+*
+*   Copyright (C) 1997-2013, International Business Machines
+*   Corporation and others.  All Rights Reserved.
+*
+******************************************************************************
+*/
+//----------------------------------------------------------------------------
+// File:     mutex.h
+//
+// Lightweight C++ wrapper for umtx_ C mutex functions
+//
+// Author:   Alan Liu  1/31/97
+// History:
+// 06/04/97   helena         Updated setImplementation as per feedback from 5/21 drop.
+// 04/07/1999  srl               refocused as a thin wrapper
+//
+//----------------------------------------------------------------------------
+#ifndef MUTEX_H
+#define MUTEX_H
+
+#include <unicode/utypes.h>
+#include <unicode/uobject.h>
+#include "umutex.h"
+
+U_NAMESPACE_BEGIN
+
+//----------------------------------------------------------------------------
+// Code within that accesses shared static or global data should
+// should instantiate a Mutex object while doing so. You should make your own 
+// private mutex where possible.
+
+// For example:
+// 
+// UMutex myMutex;
+// 
+// void Function(int arg1, int arg2)
+// {
+//    static Object* foo;     // Shared read-write object
+//    Mutex mutex(&myMutex);  // or no args for the global lock
+//    foo->Method();
+//    // When 'mutex' goes out of scope and gets destroyed here, the lock is released
+// }
+//
+// Note:  Do NOT use the form 'Mutex mutex();' as that merely forward-declares a function
+//        returning a Mutex. This is a common mistake which silently slips through the
+//        compiler!!
+//
+
+class U_COMMON_API Mutex : public UMemory {
+public:
+  inline Mutex(UMutex *mutex = NULL);
+  inline ~Mutex();
+
+private:
+  UMutex   *fMutex;
+
+  Mutex(const Mutex &other); // forbid copying of this class
+  Mutex &operator=(const Mutex &other); // forbid copying of this class
+};
+
+inline Mutex::Mutex(UMutex *mutex)
+  : fMutex(mutex)
+{
+  umtx_lock(fMutex);
+}
+
+inline Mutex::~Mutex()
+{
+  umtx_unlock(fMutex);
+}
+
+U_NAMESPACE_END
+
+#endif //_MUTEX_
+//eof
diff --git a/vendor/icu/src/putilimp.h b/vendor/icu/src/putilimp.h
new file mode 100644
index 0000000000..64e72e7118
--- /dev/null
+++ b/vendor/icu/src/putilimp.h
@@ -0,0 +1,612 @@
+// © 2016 and later: Unicode, Inc. and others.
+// License & terms of use: http://www.unicode.org/copyright.html
+/*
+******************************************************************************
+*
+*   Copyright (C) 1997-2016, International Business Machines
+*   Corporation and others.  All Rights Reserved.
+*
+******************************************************************************
+*
+*  FILE NAME : putilimp.h
+*
+*   Date        Name        Description
+*   10/17/04    grhoten     Move internal functions from putil.h to this file.
+******************************************************************************
+*/
+
+#ifndef PUTILIMP_H
+#define PUTILIMP_H
+
+#include <unicode/utypes.h>
+#include <unicode/putil.h>
+
+/**
+ * \def U_SIGNED_RIGHT_SHIFT_IS_ARITHMETIC
+ * Nearly all CPUs and compilers implement a right-shift of a signed integer
+ * as an Arithmetic Shift Right which copies the sign bit (the Most Significant Bit (MSB))
+ * into the vacated bits (sign extension).
+ * For example, (int32_t)0xfff5fff3>>4 becomes 0xffff5fff and -1>>1=-1.
+ *
+ * This can be useful for storing a signed value in the upper bits
+ * and another bit field in the lower bits.
+ * The signed value can be retrieved by simple right-shifting.
+ *
+ * This is consistent with the Java language.
+ *
+ * However, the C standard allows compilers to implement a right-shift of a signed integer
+ * as a Logical Shift Right which copies a 0 into the vacated bits.
+ * For example, (int32_t)0xfff5fff3>>4 becomes 0x0fff5fff and -1>>1=0x7fffffff.
+ *
+ * Code that depends on the natural behavior should be guarded with this macro,
+ * with an alternate path for unusual platforms.
+ * @internal
+ */
+#ifdef U_SIGNED_RIGHT_SHIFT_IS_ARITHMETIC
+    /* Use the predefined value. */
+#else
+    /*
+     * Nearly all CPUs & compilers implement a right-shift of a signed integer
+     * as an Arithmetic Shift Right (with sign extension).
+     */
+#   define U_SIGNED_RIGHT_SHIFT_IS_ARITHMETIC 1
+#endif
+
+/** Define this to 1 if your platform supports IEEE 754 floating point,
+   to 0 if it does not. */
+#ifndef IEEE_754
+#   define IEEE_754 1
+#endif
+
+/**
+ * uintptr_t is an optional part of the standard definitions in stdint.h.
+ * The opengroup.org documentation for stdint.h says
+ * "On XSI-conformant systems, the intptr_t and uintptr_t types are required;
+ * otherwise, they are optional."
+ * We assume that when uintptr_t is defined, UINTPTR_MAX is defined as well.
+ *
+ * Do not use ptrdiff_t since it is signed. size_t is unsigned.
+ */
+/* TODO: This check fails on some z environments. Filed a ticket #9357 for this. */
+#if !defined(__intptr_t_defined) && !defined(UINTPTR_MAX) && (U_PLATFORM != U_PF_OS390)
+typedef size_t uintptr_t;
+#endif
+
+/*===========================================================================*/
+/** @{ Information about POSIX support                                       */
+/*===========================================================================*/
+
+#ifdef U_HAVE_NL_LANGINFO_CODESET
+    /* Use the predefined value. */
+#elif U_PLATFORM_USES_ONLY_WIN32_API || U_PLATFORM == U_PF_ANDROID || U_PLATFORM == U_PF_QNX
+#   define U_HAVE_NL_LANGINFO_CODESET 0
+#else
+#   define U_HAVE_NL_LANGINFO_CODESET 1
+#endif
+
+#ifdef U_NL_LANGINFO_CODESET
+    /* Use the predefined value. */
+#elif !U_HAVE_NL_LANGINFO_CODESET
+#   define U_NL_LANGINFO_CODESET -1
+#elif U_PLATFORM == U_PF_OS400
+   /* not defined */
+#else
+#   define U_NL_LANGINFO_CODESET CODESET
+#endif
+
+#ifdef U_TZSET
+    /* Use the predefined value. */
+#elif U_PLATFORM_USES_ONLY_WIN32_API
+    // UWP doesn't support tzset or environment variables for tz
+#if U_PLATFORM_HAS_WINUWP_API == 0
+#   define U_TZSET _tzset
+#endif
+#elif U_PLATFORM == U_PF_OS400
+   /* not defined */
+#else
+#   define U_TZSET tzset
+#endif
+
+#if defined(U_TIMEZONE) || defined(U_HAVE_TIMEZONE)
+    /* Use the predefined value. */
+#elif U_PLATFORM == U_PF_ANDROID
+#   define U_TIMEZONE timezone
+#elif defined(__UCLIBC__)
+    // uClibc does not have __timezone or _timezone.
+#elif defined(_NEWLIB_VERSION)
+#   define U_TIMEZONE _timezone
+#elif defined(__GLIBC__)
+    // glibc
+#   define U_TIMEZONE __timezone
+#elif U_PLATFORM_IS_LINUX_BASED
+    // not defined
+#elif U_PLATFORM_USES_ONLY_WIN32_API
+#   define U_TIMEZONE _timezone
+#elif U_PLATFORM == U_PF_BSD && !defined(__NetBSD__)
+   /* not defined */
+#elif U_PLATFORM == U_PF_OS400
+   /* not defined */
+#elif U_PLATFORM == U_PF_IPHONE
+   /* not defined */
+#else
+#   define U_TIMEZONE timezone
+#endif
+
+#ifdef U_TZNAME
+    /* Use the predefined value. */
+#elif U_PLATFORM_USES_ONLY_WIN32_API
+    /* not usable on all windows platforms */
+#if U_PLATFORM_HAS_WINUWP_API == 0
+#   define U_TZNAME _tzname
+#endif
+#elif U_PLATFORM == U_PF_OS400
+   /* not defined */
+#else
+#   define U_TZNAME tzname
+#endif
+
+#ifdef U_HAVE_MMAP
+    /* Use the predefined value. */
+#elif U_PLATFORM_USES_ONLY_WIN32_API
+#   define U_HAVE_MMAP 0
+#else
+#   define U_HAVE_MMAP 1
+#endif
+
+#ifdef U_HAVE_POPEN
+    /* Use the predefined value. */
+#elif U_PLATFORM_USES_ONLY_WIN32_API
+#   define U_HAVE_POPEN 0
+#elif U_PLATFORM == U_PF_OS400
+#   define U_HAVE_POPEN 0
+#else
+#   define U_HAVE_POPEN 1
+#endif
+
+/**
+ * \def U_HAVE_DIRENT_H
+ * Defines whether dirent.h is available.
+ * @internal
+ */
+#ifdef U_HAVE_DIRENT_H
+    /* Use the predefined value. */
+#elif U_PLATFORM_USES_ONLY_WIN32_API
+#   define U_HAVE_DIRENT_H 0
+#else
+#   define U_HAVE_DIRENT_H 1
+#endif
+
+/** @} */
+
+/*===========================================================================*/
+/** @{ GCC built in functions for atomic memory operations                   */
+/*===========================================================================*/
+
+/**
+ * \def U_HAVE_GCC_ATOMICS
+ * @internal
+ */
+#ifdef U_HAVE_GCC_ATOMICS
+    /* Use the predefined value. */
+#elif U_PLATFORM == U_PF_MINGW
+    #define U_HAVE_GCC_ATOMICS 0
+#elif U_GCC_MAJOR_MINOR >= 404 || defined(__clang__)
+    /* TODO: Intel icc and IBM xlc on AIX also support gcc atomics.  (Intel originated them.)
+     *       Add them for these compilers.
+     * Note: Clang sets __GNUC__ defines for version 4.2, so misses the 4.4 test here.
+     */
+#   define U_HAVE_GCC_ATOMICS 1
+#else
+#   define U_HAVE_GCC_ATOMICS 0
+#endif
+
+/** @} */
+
+/**
+ * \def U_HAVE_STD_ATOMICS
+ * Defines whether the standard C++11 <atomic> is available.
+ * ICU will use this when available,
+ * otherwise will fall back to compiler or platform specific alternatives.
+ * @internal
+ */
+#ifdef U_HAVE_STD_ATOMICS
+    /* Use the predefined value. */
+#elif U_CPLUSPLUS_VERSION < 11
+    /* Not C++11, disable use of atomics */
+#   define U_HAVE_STD_ATOMICS 0
+#elif __clang__ && __clang_major__==3 && __clang_minor__<=1
+    /* Clang 3.1, has atomic variable initializer bug. */
+#   define U_HAVE_STD_ATOMICS 0
+#else 
+    /* U_HAVE_ATOMIC is typically set by an autoconf test of #include <atomic>  */
+    /*   Can be set manually, or left undefined, on platforms without autoconf. */
+#   if defined(U_HAVE_ATOMIC) &&  U_HAVE_ATOMIC 
+#      define U_HAVE_STD_ATOMICS 1
+#   else
+#      define U_HAVE_STD_ATOMICS 0
+#   endif
+#endif
+
+
+/**
+ *  \def U_HAVE_CLANG_ATOMICS
+ *  Defines whether Clang c11 style built-in atomics are available.
+ *  These are used in preference to gcc atomics when both are available.
+ */
+#ifdef U_HAVE_CLANG_ATOMICS
+    /* Use the predefined value. */
+#elif __has_builtin(__c11_atomic_load) && \
+    __has_builtin(__c11_atomic_store) && \
+    __has_builtin(__c11_atomic_fetch_add) && \
+    __has_builtin(__c11_atomic_fetch_sub)
+#    define U_HAVE_CLANG_ATOMICS 1
+#else
+#    define U_HAVE_CLANG_ATOMICS 0
+#endif
+
+/*===========================================================================*/
+/** @{ Programs used by ICU code                                             */
+/*===========================================================================*/
+
+/**
+ * \def U_MAKE_IS_NMAKE
+ * Defines whether the "make" program is Windows nmake.
+ */
+#ifdef U_MAKE_IS_NMAKE
+    /* Use the predefined value. */
+#elif U_PLATFORM == U_PF_WINDOWS
+#   define U_MAKE_IS_NMAKE 1
+#else
+#   define U_MAKE_IS_NMAKE 0
+#endif
+
+/** @} */
+
+/*==========================================================================*/
+/* Platform utilities                                                       */
+/*==========================================================================*/
+
+/**
+ * Platform utilities isolates the platform dependencies of the
+ * library.  For each platform which this code is ported to, these
+ * functions may have to be re-implemented.
+ */
+
+/**
+ * Floating point utility to determine if a double is Not a Number (NaN).
+ * @internal
+ */
+U_INTERNAL UBool   U_EXPORT2 uprv_isNaN(double d);
+/**
+ * Floating point utility to determine if a double has an infinite value.
+ * @internal
+ */
+U_INTERNAL UBool   U_EXPORT2 uprv_isInfinite(double d);
+/**
+ * Floating point utility to determine if a double has a positive infinite value.
+ * @internal
+ */
+U_INTERNAL UBool   U_EXPORT2 uprv_isPositiveInfinity(double d);
+/**
+ * Floating point utility to determine if a double has a negative infinite value.
+ * @internal
+ */
+U_INTERNAL UBool   U_EXPORT2 uprv_isNegativeInfinity(double d);
+/**
+ * Floating point utility that returns a Not a Number (NaN) value.
+ * @internal
+ */
+U_INTERNAL double  U_EXPORT2 uprv_getNaN(void);
+/**
+ * Floating point utility that returns an infinite value.
+ * @internal
+ */
+U_INTERNAL double  U_EXPORT2 uprv_getInfinity(void);
+
+/**
+ * Floating point utility to truncate a double.
+ * @internal
+ */
+U_INTERNAL double  U_EXPORT2 uprv_trunc(double d);
+/**
+ * Floating point utility to calculate the floor of a double.
+ * @internal
+ */
+U_INTERNAL double  U_EXPORT2 uprv_floor(double d);
+/**
+ * Floating point utility to calculate the ceiling of a double.
+ * @internal
+ */
+U_INTERNAL double  U_EXPORT2 uprv_ceil(double d);
+/**
+ * Floating point utility to calculate the absolute value of a double.
+ * @internal
+ */
+U_INTERNAL double  U_EXPORT2 uprv_fabs(double d);
+/**
+ * Floating point utility to calculate the fractional and integer parts of a double.
+ * @internal
+ */
+U_INTERNAL double  U_EXPORT2 uprv_modf(double d, double* pinteger);
+/**
+ * Floating point utility to calculate the remainder of a double divided by another double.
+ * @internal
+ */
+U_INTERNAL double  U_EXPORT2 uprv_fmod(double d, double y);
+/**
+ * Floating point utility to calculate d to the power of exponent (d^exponent).
+ * @internal
+ */
+U_INTERNAL double  U_EXPORT2 uprv_pow(double d, double exponent);
+/**
+ * Floating point utility to calculate 10 to the power of exponent (10^exponent).
+ * @internal
+ */
+U_INTERNAL double  U_EXPORT2 uprv_pow10(int32_t exponent);
+/**
+ * Floating point utility to calculate the maximum value of two doubles.
+ * @internal
+ */
+U_INTERNAL double  U_EXPORT2 uprv_fmax(double d, double y);
+/**
+ * Floating point utility to calculate the minimum value of two doubles.
+ * @internal
+ */
+U_INTERNAL double  U_EXPORT2 uprv_fmin(double d, double y);
+/**
+ * Private utility to calculate the maximum value of two integers.
+ * @internal
+ */
+U_INTERNAL int32_t U_EXPORT2 uprv_max(int32_t d, int32_t y);
+/**
+ * Private utility to calculate the minimum value of two integers.
+ * @internal
+ */
+U_INTERNAL int32_t U_EXPORT2 uprv_min(int32_t d, int32_t y);
+
+#if U_IS_BIG_ENDIAN
+#   define uprv_isNegative(number) (*((signed char *)&(number))<0)
+#else
+#   define uprv_isNegative(number) (*((signed char *)&(number)+sizeof(number)-1)<0)
+#endif
+
+/**
+ * Return the largest positive number that can be represented by an integer
+ * type of arbitrary bit length.
+ * @internal
+ */
+U_INTERNAL double  U_EXPORT2 uprv_maxMantissa(void);
+
+/**
+ * Floating point utility to calculate the logarithm of a double.
+ * @internal
+ */
+U_INTERNAL double  U_EXPORT2 uprv_log(double d);
+
+/**
+ * Does common notion of rounding e.g. uprv_floor(x + 0.5);
+ * @param x the double number
+ * @return the rounded double
+ * @internal
+ */
+U_INTERNAL double  U_EXPORT2 uprv_round(double x);
+
+#if 0
+/**
+ * Returns the number of digits after the decimal point in a double number x.
+ *
+ * @param x the double number
+ * @return the number of digits after the decimal point in a double number x.
+ * @internal
+ */
+/*U_INTERNAL int32_t  U_EXPORT2 uprv_digitsAfterDecimal(double x);*/
+#endif
+
+#if !U_CHARSET_IS_UTF8
+/**
+ * Please use ucnv_getDefaultName() instead.
+ * Return the default codepage for this platform and locale.
+ * This function can call setlocale() on Unix platforms. Please read the
+ * platform documentation on setlocale() before calling this function.
+ * @return the default codepage for this platform 
+ * @internal
+ */
+U_INTERNAL const char*  U_EXPORT2 uprv_getDefaultCodepage(void);
+#endif
+
+/**
+ * Please use uloc_getDefault() instead.
+ * Return the default locale ID string by querying the system, or
+ *     zero if one cannot be found. 
+ * This function can call setlocale() on Unix platforms. Please read the
+ * platform documentation on setlocale() before calling this function.
+ * @return the default locale ID string
+ * @internal
+ */
+U_INTERNAL const char*  U_EXPORT2 uprv_getDefaultLocaleID(void);
+
+/**
+ * Time zone utilities
+ *
+ * Wrappers for C runtime library functions relating to timezones.
+ * The t_tzset() function (similar to tzset) uses the current setting
+ * of the environment variable TZ to assign values to three global
+ * variables: daylight, timezone, and tzname. These variables have the
+ * following meanings, and are declared in &lt;time.h&gt;.
+ *
+ *   daylight   Nonzero if daylight-saving-time zone (DST) is specified
+ *              in TZ; otherwise, 0. Default value is 1.
+ *   timezone   Difference in seconds between coordinated universal
+ *              time and local time. E.g., -28,800 for PST (GMT-8hrs)
+ *   tzname(0)  Three-letter time-zone name derived from TZ environment
+ *              variable. E.g., "PST".
+ *   tzname(1)  Three-letter DST zone name derived from TZ environment
+ *              variable.  E.g., "PDT". If DST zone is omitted from TZ,
+ *              tzname(1) is an empty string.
+ *
+ * Notes: For example, to set the TZ environment variable to correspond
+ * to the current time zone in Germany, you can use one of the
+ * following statements:
+ *
+ *   set TZ=GST1GDT
+ *   set TZ=GST+1GDT
+ *
+ * If the TZ value is not set, t_tzset() attempts to use the time zone
+ * information specified by the operating system. Under Windows NT
+ * and Windows 95, this information is specified in the Control Panel's
+ * Date/Time application.
+ * @internal
+ */
+U_INTERNAL void     U_EXPORT2 uprv_tzset(void);
+
+/**
+ * Difference in seconds between coordinated universal
+ * time and local time. E.g., -28,800 for PST (GMT-8hrs)
+ * @return the difference in seconds between coordinated universal time and local time.
+ * @internal
+ */
+U_INTERNAL int32_t  U_EXPORT2 uprv_timezone(void);
+
+/**
+ *   tzname(0)  Three-letter time-zone name derived from TZ environment
+ *              variable. E.g., "PST".
+ *   tzname(1)  Three-letter DST zone name derived from TZ environment
+ *              variable.  E.g., "PDT". If DST zone is omitted from TZ,
+ *              tzname(1) is an empty string.
+ * @internal
+ */
+U_INTERNAL const char* U_EXPORT2 uprv_tzname(int n);
+
+/**
+ * Reset the global tzname cache.
+ * @internal
+ */
+U_INTERNAL void uprv_tzname_clear_cache();
+
+/**
+ * Get UTC (GMT) time measured in milliseconds since 0:00 on 1/1/1970.
+ * This function is affected by 'faketime' and should be the bottleneck for all user-visible ICU time functions.
+ * @return the UTC time measured in milliseconds
+ * @internal
+ */
+U_INTERNAL UDate U_EXPORT2 uprv_getUTCtime(void);
+
+/**
+ * Get UTC (GMT) time measured in milliseconds since 0:00 on 1/1/1970.
+ * This function is not affected by 'faketime', so it should only be used by low level test functions- not by anything that
+ * exposes time to the end user.
+ * @return the UTC time measured in milliseconds
+ * @internal
+ */
+U_INTERNAL UDate U_EXPORT2 uprv_getRawUTCtime(void);
+
+/**
+ * Determine whether a pathname is absolute or not, as defined by the platform.
+ * @param path Pathname to test
+ * @return TRUE if the path is absolute
+ * @internal (ICU 3.0)
+ */
+U_INTERNAL UBool U_EXPORT2 uprv_pathIsAbsolute(const char *path);
+
+/**
+ * Use U_MAX_PTR instead of this function.
+ * @param void pointer to test
+ * @return the largest possible pointer greater than the base
+ * @internal (ICU 3.8)
+ */
+U_INTERNAL void * U_EXPORT2 uprv_maximumPtr(void *base);
+
+/**
+ * Maximum value of a (void*) - use to indicate the limit of an 'infinite' buffer.
+ * In fact, buffer sizes must not exceed 2GB so that the difference between
+ * the buffer limit and the buffer start can be expressed in an int32_t.
+ *
+ * The definition of U_MAX_PTR must fulfill the following conditions:
+ * - return the largest possible pointer greater than base
+ * - return a valid pointer according to the machine architecture (AS/400, 64-bit, etc.)
+ * - avoid wrapping around at high addresses
+ * - make sure that the returned pointer is not farther from base than 0x7fffffff bytes
+ *
+ * @param base The beginning of a buffer to find the maximum offset from
+ * @internal
+ */
+#ifndef U_MAX_PTR
+#  if U_PLATFORM == U_PF_OS390 && !defined(_LP64)
+    /* We have 31-bit pointers. */
+#    define U_MAX_PTR(base) ((void *)0x7fffffff)
+#  elif U_PLATFORM == U_PF_OS400
+#    define U_MAX_PTR(base) uprv_maximumPtr((void *)base)
+#  elif 0
+    /*
+     * For platforms where pointers are scalar values (which is normal, but unlike i5/OS)
+     * but that do not define uintptr_t.
+     *
+     * However, this does not work on modern compilers:
+     * The C++ standard does not define pointer overflow, and allows compilers to
+     * assume that p+u>p for any pointer p and any integer u>0.
+     * Thus, modern compilers optimize away the ">" comparison.
+     * (See ICU tickets #7187 and #8096.)
+     */
+#    define U_MAX_PTR(base) \
+    ((void *)(((char *)(base)+0x7fffffffu) > (char *)(base) \
+        ? ((char *)(base)+0x7fffffffu) \
+        : (char *)-1))
+#  else
+    /* Default version. C++ standard compliant for scalar pointers. */
+#    define U_MAX_PTR(base) \
+    ((void *)(((uintptr_t)(base)+0x7fffffffu) > (uintptr_t)(base) \
+        ? ((uintptr_t)(base)+0x7fffffffu) \
+        : (uintptr_t)-1))
+#  endif
+#endif
+
+/*  Dynamic Library Functions */
+
+typedef void (UVoidFunction)(void);
+
+#if U_ENABLE_DYLOAD
+/**
+ * Load a library
+ * @internal (ICU 4.4)
+ */
+U_INTERNAL void * U_EXPORT2 uprv_dl_open(const char *libName, UErrorCode *status);
+
+/**
+ * Close a library
+ * @internal (ICU 4.4)
+ */
+U_INTERNAL void U_EXPORT2 uprv_dl_close( void *lib, UErrorCode *status);
+
+/**
+ * Extract a symbol from a library (function)
+ * @internal (ICU 4.8)
+ */
+U_INTERNAL UVoidFunction* U_EXPORT2 uprv_dlsym_func( void *lib, const char *symbolName, UErrorCode *status);
+
+/**
+ * Extract a symbol from a library (function)
+ * Not implemented, no clients.
+ * @internal
+ */
+/* U_INTERNAL void * U_EXPORT2 uprv_dlsym_data( void *lib, const char *symbolName, UErrorCode *status); */
+
+#endif
+
+/**
+ * Define malloc and related functions
+ * @internal
+ */
+#if U_PLATFORM == U_PF_OS400
+# define uprv_default_malloc(x) _C_TS_malloc(x)
+# define uprv_default_realloc(x,y) _C_TS_realloc(x,y)
+# define uprv_default_free(x) _C_TS_free(x)
+/* also _C_TS_calloc(x) */
+#else
+/* C defaults */
+# define uprv_default_malloc(x) malloc(x)
+# define uprv_default_realloc(x,y) realloc(x,y)
+# define uprv_default_free(x) free(x)
+#endif
+
+
+#endif
diff --git a/vendor/icu/src/uassert.h b/vendor/icu/src/uassert.h
new file mode 100644
index 0000000000..a4612a07f9
--- /dev/null
+++ b/vendor/icu/src/uassert.h
@@ -0,0 +1,34 @@
+// © 2016 and later: Unicode, Inc. and others.
+// License & terms of use: http://www.unicode.org/copyright.html
+/*
+******************************************************************************
+*
+*   Copyright (C) 2002-2011, International Business Machines
+*   Corporation and others.  All Rights Reserved.
+*
+******************************************************************************
+*
+* File uassert.h
+*
+*  Contains U_ASSERT macro
+*
+*    By default, U_ASSERT just wraps the C library assert macro.
+*    By changing the definition here, the assert behavior for ICU can be changed
+*    without affecting other non-ICU uses of the C library assert().
+*
+******************************************************************************
+*/
+
+#ifndef U_ASSERT_H
+#define U_ASSERT_H
+/* utypes.h is included to get the proper define for uint8_t */
+#include <unicode/utypes.h>
+#if U_DEBUG
+#   include <assert.h>
+#   define U_ASSERT(exp) assert(exp)
+#else
+#   define U_ASSERT(exp)
+#endif
+#endif
+
+
diff --git a/vendor/icu/src/ubidi.cpp b/vendor/icu/src/ubidi.cpp
new file mode 100644
index 0000000000..ba61e02bd5
--- /dev/null
+++ b/vendor/icu/src/ubidi.cpp
@@ -0,0 +1,3039 @@
+// © 2016 and later: Unicode, Inc. and others.
+// License & terms of use: http://www.unicode.org/copyright.html
+/*
+******************************************************************************
+*
+*   Copyright (C) 1999-2015, International Business Machines
+*   Corporation and others.  All Rights Reserved.
+*
+******************************************************************************
+*   file name:  ubidi.c
+*   encoding:   UTF-8
+*   tab size:   8 (not used)
+*   indentation:4
+*
+*   created on: 1999jul27
+*   created by: Markus W. Scherer, updated by Matitiahu Allouche
+*
+*/
+
+#include "cmemory.h"
+#include <unicode/utypes.h>
+#include <unicode/ustring.h>
+#include <unicode/uchar.h>
+#include <unicode/ubidi.h>
+#include <unicode/utf16.h>
+#include "ubidi_props.h"
+#include "ubidiimp.h"
+#include "uassert.h"
+
+/*
+ * General implementation notes:
+ *
+ * Throughout the implementation, there are comments like (W2) that refer to
+ * rules of the BiDi algorithm, in this example to the second rule of the
+ * resolution of weak types.
+ *
+ * For handling surrogate pairs, where two UChar's form one "abstract" (or UTF-32)
+ * character according to UTF-16, the second UChar gets the directional property of
+ * the entire character assigned, while the first one gets a BN, a boundary
+ * neutral, type, which is ignored by most of the algorithm according to
+ * rule (X9) and the implementation suggestions of the BiDi algorithm.
+ *
+ * Later, adjustWSLevels() will set the level for each BN to that of the
+ * following character (UChar), which results in surrogate pairs getting the
+ * same level on each of their surrogates.
+ *
+ * In a UTF-8 implementation, the same thing could be done: the last byte of
+ * a multi-byte sequence would get the "real" property, while all previous
+ * bytes of that sequence would get BN.
+ *
+ * It is not possible to assign all those parts of a character the same real
+ * property because this would fail in the resolution of weak types with rules
+ * that look at immediately surrounding types.
+ *
+ * As a related topic, this implementation does not remove Boundary Neutral
+ * types from the input, but ignores them wherever this is relevant.
+ * For example, the loop for the resolution of the weak types reads
+ * types until it finds a non-BN.
+ * Also, explicit embedding codes are neither changed into BN nor removed.
+ * They are only treated the same way real BNs are.
+ * As stated before, adjustWSLevels() takes care of them at the end.
+ * For the purpose of conformance, the levels of all these codes
+ * do not matter.
+ *
+ * Note that this implementation modifies the dirProps
+ * after the initial setup, when applying X5c (replace FSI by LRI or RLI),
+ * X6, N0 (replace paired brackets by L or R).
+ *
+ * In this implementation, the resolution of weak types (W1 to W6),
+ * neutrals (N1 and N2), and the assignment of the resolved level (In)
+ * are all done in one single loop, in resolveImplicitLevels().
+ * Changes of dirProp values are done on the fly, without writing
+ * them back to the dirProps array.
+ *
+ *
+ * This implementation contains code that allows to bypass steps of the
+ * algorithm that are not needed on the specific paragraph
+ * in order to speed up the most common cases considerably,
+ * like text that is entirely LTR, or RTL text without numbers.
+ *
+ * Most of this is done by setting a bit for each directional property
+ * in a flags variable and later checking for whether there are
+ * any LTR characters or any RTL characters, or both, whether
+ * there are any explicit embedding codes, etc.
+ *
+ * If the (Xn) steps are performed, then the flags are re-evaluated,
+ * because they will then not contain the embedding codes any more
+ * and will be adjusted for override codes, so that subsequently
+ * more bypassing may be possible than what the initial flags suggested.
+ *
+ * If the text is not mixed-directional, then the
+ * algorithm steps for the weak type resolution are not performed,
+ * and all levels are set to the paragraph level.
+ *
+ * If there are no explicit embedding codes, then the (Xn) steps
+ * are not performed.
+ *
+ * If embedding levels are supplied as a parameter, then all
+ * explicit embedding codes are ignored, and the (Xn) steps
+ * are not performed.
+ *
+ * White Space types could get the level of the run they belong to,
+ * and are checked with a test of (flags&MASK_EMBEDDING) to
+ * consider if the paragraph direction should be considered in
+ * the flags variable.
+ *
+ * If there are no White Space types in the paragraph, then
+ * (L1) is not necessary in adjustWSLevels().
+ */
+
+/* to avoid some conditional statements, use tiny constant arrays */
+static const Flags flagLR[2]={ DIRPROP_FLAG(L), DIRPROP_FLAG(R) };
+static const Flags flagE[2]={ DIRPROP_FLAG(LRE), DIRPROP_FLAG(RLE) };
+static const Flags flagO[2]={ DIRPROP_FLAG(LRO), DIRPROP_FLAG(RLO) };
+
+#define DIRPROP_FLAG_LR(level) flagLR[(level)&1]
+#define DIRPROP_FLAG_E(level)  flagE[(level)&1]
+#define DIRPROP_FLAG_O(level)  flagO[(level)&1]
+
+#define DIR_FROM_STRONG(strong) ((strong)==L ? L : R)
+
+#define NO_OVERRIDE(level)  ((level)&~UBIDI_LEVEL_OVERRIDE)
+
+/* UBiDi object management -------------------------------------------------- */
+
+U_CAPI UBiDi * U_EXPORT2
+ubidi_open(void)
+{
+    UErrorCode errorCode=U_ZERO_ERROR;
+    return ubidi_openSized(0, 0, &errorCode);
+}
+
+U_CAPI UBiDi * U_EXPORT2
+ubidi_openSized(int32_t maxLength, int32_t maxRunCount, UErrorCode *pErrorCode) {
+    UBiDi *pBiDi;
+
+    /* check the argument values */
+    if(pErrorCode==NULL || U_FAILURE(*pErrorCode)) {
+        return NULL;
+    } else if(maxLength<0 || maxRunCount<0) {
+        *pErrorCode=U_ILLEGAL_ARGUMENT_ERROR;
+        return NULL;    /* invalid arguments */
+    }
+
+    /* allocate memory for the object */
+    pBiDi=(UBiDi *)uprv_malloc(sizeof(UBiDi));
+    if(pBiDi==NULL) {
+        *pErrorCode=U_MEMORY_ALLOCATION_ERROR;
+        return NULL;
+    }
+
+    /* reset the object, all pointers NULL, all flags FALSE, all sizes 0 */
+    uprv_memset(pBiDi, 0, sizeof(UBiDi));
+
+    /* allocate memory for arrays as requested */
+    if(maxLength>0) {
+        if( !getInitialDirPropsMemory(pBiDi, maxLength) ||
+            !getInitialLevelsMemory(pBiDi, maxLength)
+        ) {
+            *pErrorCode=U_MEMORY_ALLOCATION_ERROR;
+        }
+    } else {
+        pBiDi->mayAllocateText=TRUE;
+    }
+
+    if(maxRunCount>0) {
+        if(maxRunCount==1) {
+            /* use simpleRuns[] */
+            pBiDi->runsSize=sizeof(Run);
+        } else if(!getInitialRunsMemory(pBiDi, maxRunCount)) {
+            *pErrorCode=U_MEMORY_ALLOCATION_ERROR;
+        }
+    } else {
+        pBiDi->mayAllocateRuns=TRUE;
+    }
+
+    if(U_SUCCESS(*pErrorCode)) {
+        return pBiDi;
+    } else {
+        ubidi_close(pBiDi);
+        return NULL;
+    }
+}
+
+/*
+ * We are allowed to allocate memory if memory==NULL or
+ * mayAllocate==TRUE for each array that we need.
+ * We also try to grow memory as needed if we
+ * allocate it.
+ *
+ * Assume sizeNeeded>0.
+ * If *pMemory!=NULL, then assume *pSize>0.
+ *
+ * ### this realloc() may unnecessarily copy the old data,
+ * which we know we don't need any more;
+ * is this the best way to do this??
+ */
+U_CFUNC UBool
+ubidi_getMemory(BidiMemoryForAllocation *bidiMem, int32_t *pSize, UBool mayAllocate, int32_t sizeNeeded) {
+    void **pMemory = (void **)bidiMem;
+    /* check for existing memory */
+    if(*pMemory==NULL) {
+        /* we need to allocate memory */
+        if(mayAllocate && (*pMemory=uprv_malloc(sizeNeeded))!=NULL) {
+            *pSize=sizeNeeded;
+            return TRUE;
+        } else {
+            return FALSE;
+        }
+    } else {
+        if(sizeNeeded<=*pSize) {
+            /* there is already enough memory */
+            return TRUE;
+        }
+        else if(!mayAllocate) {
+            /* not enough memory, and we must not allocate */
+            return FALSE;
+        } else {
+            /* we try to grow */
+            void *memory;
+            /* in most cases, we do not need the copy-old-data part of
+             * realloc, but it is needed when adding runs using getRunsMemory()
+             * in setParaRunsOnly()
+             */
+            if((memory=uprv_realloc(*pMemory, sizeNeeded))!=NULL) {
+                *pMemory=memory;
+                *pSize=sizeNeeded;
+                return TRUE;
+            } else {
+                /* we failed to grow */
+                return FALSE;
+            }
+        }
+    }
+}
+
+U_CAPI void U_EXPORT2
+ubidi_close(UBiDi *pBiDi) {
+    if(pBiDi!=NULL) {
+        pBiDi->pParaBiDi=NULL;          /* in case one tries to reuse this block */
+        if(pBiDi->dirPropsMemory!=NULL) {
+            uprv_free(pBiDi->dirPropsMemory);
+        }
+        if(pBiDi->levelsMemory!=NULL) {
+            uprv_free(pBiDi->levelsMemory);
+        }
+        if(pBiDi->openingsMemory!=NULL) {
+            uprv_free(pBiDi->openingsMemory);
+        }
+        if(pBiDi->parasMemory!=NULL) {
+            uprv_free(pBiDi->parasMemory);
+        }
+        if(pBiDi->runsMemory!=NULL) {
+            uprv_free(pBiDi->runsMemory);
+        }
+        if(pBiDi->isolatesMemory!=NULL) {
+            uprv_free(pBiDi->isolatesMemory);
+        }
+        if(pBiDi->insertPoints.points!=NULL) {
+            uprv_free(pBiDi->insertPoints.points);
+        }
+
+        uprv_free(pBiDi);
+    }
+}
+
+/* set to approximate "inverse BiDi" ---------------------------------------- */
+
+U_CAPI void U_EXPORT2
+ubidi_setInverse(UBiDi *pBiDi, UBool isInverse) {
+    if(pBiDi!=NULL) {
+        pBiDi->isInverse=isInverse;
+        pBiDi->reorderingMode = isInverse ? UBIDI_REORDER_INVERSE_NUMBERS_AS_L
+                                          : UBIDI_REORDER_DEFAULT;
+    }
+}
+
+U_CAPI UBool U_EXPORT2
+ubidi_isInverse(UBiDi *pBiDi) {
+    if(pBiDi!=NULL) {
+        return pBiDi->isInverse;
+    } else {
+        return FALSE;
+    }
+}
+
+/* FOOD FOR THOUGHT: currently the reordering modes are a mixture of
+ * algorithm for direct BiDi, algorithm for inverse BiDi and the bizarre
+ * concept of RUNS_ONLY which is a double operation.
+ * It could be advantageous to divide this into 3 concepts:
+ * a) Operation: direct / inverse / RUNS_ONLY
+ * b) Direct algorithm: default / NUMBERS_SPECIAL / GROUP_NUMBERS_WITH_R
+ * c) Inverse algorithm: default / INVERSE_LIKE_DIRECT / NUMBERS_SPECIAL
+ * This would allow combinations not possible today like RUNS_ONLY with
+ * NUMBERS_SPECIAL.
+ * Also allow to set INSERT_MARKS for the direct step of RUNS_ONLY and
+ * REMOVE_CONTROLS for the inverse step.
+ * Not all combinations would be supported, and probably not all do make sense.
+ * This would need to document which ones are supported and what are the
+ * fallbacks for unsupported combinations.
+ */
+U_CAPI void U_EXPORT2
+ubidi_setReorderingMode(UBiDi *pBiDi, UBiDiReorderingMode reorderingMode) {
+    if ((pBiDi!=NULL) && (reorderingMode >= UBIDI_REORDER_DEFAULT)
+                        && (reorderingMode < UBIDI_REORDER_COUNT)) {
+        pBiDi->reorderingMode = reorderingMode;
+        pBiDi->isInverse = (UBool)(reorderingMode == UBIDI_REORDER_INVERSE_NUMBERS_AS_L);
+    }
+}
+
+U_CAPI UBiDiReorderingMode U_EXPORT2
+ubidi_getReorderingMode(UBiDi *pBiDi) {
+    if (pBiDi!=NULL) {
+        return pBiDi->reorderingMode;
+    } else {
+        return UBIDI_REORDER_DEFAULT;
+    }
+}
+
+U_CAPI void U_EXPORT2
+ubidi_setReorderingOptions(UBiDi *pBiDi, uint32_t reorderingOptions) {
+    if (reorderingOptions & UBIDI_OPTION_REMOVE_CONTROLS) {
+        reorderingOptions&=~UBIDI_OPTION_INSERT_MARKS;
+    }
+    if (pBiDi!=NULL) {
+        pBiDi->reorderingOptions=reorderingOptions;
+    }
+}
+
+U_CAPI uint32_t U_EXPORT2
+ubidi_getReorderingOptions(UBiDi *pBiDi) {
+    if (pBiDi!=NULL) {
+        return pBiDi->reorderingOptions;
+    } else {
+        return 0;
+    }
+}
+
+U_CAPI UBiDiDirection U_EXPORT2
+ubidi_getBaseDirection(const UChar *text,
+int32_t length){
+
+    int32_t i;
+    UChar32 uchar;
+    UCharDirection dir;
+
+    if( text==NULL || length<-1 ){
+        return UBIDI_NEUTRAL;
+    }
+
+    if(length==-1) {
+        length=u_strlen(text);
+    }
+
+    for( i = 0 ; i < length; ) {
+        /* i is incremented by U16_NEXT */
+        U16_NEXT(text, i, length, uchar);
+        dir = u_charDirection(uchar);
+        if( dir == U_LEFT_TO_RIGHT )
+                return UBIDI_LTR;
+        if( dir == U_RIGHT_TO_LEFT || dir ==U_RIGHT_TO_LEFT_ARABIC )
+                return UBIDI_RTL;
+    }
+    return UBIDI_NEUTRAL;
+}
+
+/* perform (P2)..(P3) ------------------------------------------------------- */
+
+/**
+ * Returns the directionality of the first strong character
+ * after the last B in prologue, if any.
+ * Requires prologue!=null.
+ */
+static DirProp
+firstL_R_AL(UBiDi *pBiDi) {
+    const UChar *text=pBiDi->prologue;
+    int32_t length=pBiDi->proLength;
+    int32_t i;
+    UChar32 uchar;
+    DirProp dirProp, result=ON;
+    for(i=0; i<length; ) {
+        /* i is incremented by U16_NEXT */
+        U16_NEXT(text, i, length, uchar);
+        dirProp=(DirProp)ubidi_getCustomizedClass(pBiDi, uchar);
+        if(result==ON) {
+            if(dirProp==L || dirProp==R || dirProp==AL) {
+                result=dirProp;
+            }
+        } else {
+            if(dirProp==B) {
+                result=ON;
+            }
+        }
+    }
+    return result;
+}
+
+/*
+ * Check that there are enough entries in the array pointed to by pBiDi->paras
+ */
+static UBool
+checkParaCount(UBiDi *pBiDi) {
+    int32_t count=pBiDi->paraCount;
+    if(pBiDi->paras==pBiDi->simpleParas) {
+        if(count<=SIMPLE_PARAS_COUNT)
+            return TRUE;
+        if(!getInitialParasMemory(pBiDi, SIMPLE_PARAS_COUNT * 2))
+            return FALSE;
+        pBiDi->paras=pBiDi->parasMemory;
+        uprv_memcpy(pBiDi->parasMemory, pBiDi->simpleParas, SIMPLE_PARAS_COUNT * sizeof(Para));
+        return TRUE;
+    }
+    if(!getInitialParasMemory(pBiDi, count * 2))
+        return FALSE;
+    pBiDi->paras=pBiDi->parasMemory;
+    return TRUE;
+}
+
+/*
+ * Get the directional properties for the text, calculate the flags bit-set, and
+ * determine the paragraph level if necessary (in pBiDi->paras[i].level).
+ * FSI initiators are also resolved and their dirProp replaced with LRI or RLI.
+ * When encountering an FSI, it is initially replaced with an LRI, which is the
+ * default. Only if a strong R or AL is found within its scope will the LRI be
+ * replaced by an RLI.
+ */
+static UBool
+getDirProps(UBiDi *pBiDi) {
+    const UChar *text=pBiDi->text;
+    DirProp *dirProps=pBiDi->dirPropsMemory;    /* pBiDi->dirProps is const */
+
+    int32_t i=0, originalLength=pBiDi->originalLength;
+    Flags flags=0;      /* collect all directionalities in the text */
+    UChar32 uchar;
+    DirProp dirProp=0, defaultParaLevel=0;  /* initialize to avoid compiler warnings */
+    UBool isDefaultLevel=IS_DEFAULT_LEVEL(pBiDi->paraLevel);
+    /* for inverse BiDi, the default para level is set to RTL if there is a
+       strong R or AL character at either end of the text                            */
+    UBool isDefaultLevelInverse=isDefaultLevel && (UBool)
+            (pBiDi->reorderingMode==UBIDI_REORDER_INVERSE_LIKE_DIRECT ||
+             pBiDi->reorderingMode==UBIDI_REORDER_INVERSE_FOR_NUMBERS_SPECIAL);
+    int32_t lastArabicPos=-1;
+    int32_t controlCount=0;
+    UBool removeBiDiControls = (UBool)(pBiDi->reorderingOptions &
+                                       UBIDI_OPTION_REMOVE_CONTROLS);
+
+    enum State {
+         NOT_SEEKING_STRONG,            /* 0: not contextual paraLevel, not after FSI */
+         SEEKING_STRONG_FOR_PARA,       /* 1: looking for first strong char in para */
+         SEEKING_STRONG_FOR_FSI,        /* 2: looking for first strong after FSI */
+         LOOKING_FOR_PDI                /* 3: found strong after FSI, looking for PDI */
+    };
+    State state;
+    DirProp lastStrong=ON;              /* for default level & inverse BiDi */
+    /* The following stacks are used to manage isolate sequences. Those
+       sequences may be nested, but obviously never more deeply than the
+       maximum explicit embedding level.
+       lastStack is the index of the last used entry in the stack. A value of -1
+       means that there is no open isolate sequence.
+       lastStack is reset to -1 on paragraph boundaries. */
+    /* The following stack contains the position of the initiator of
+       each open isolate sequence */
+    int32_t isolateStartStack[UBIDI_MAX_EXPLICIT_LEVEL+1];
+    /* The following stack contains the last known state before
+       encountering the initiator of an isolate sequence */
+    State  previousStateStack[UBIDI_MAX_EXPLICIT_LEVEL+1];
+    int32_t stackLast=-1;
+
+    if(pBiDi->reorderingOptions & UBIDI_OPTION_STREAMING)
+        pBiDi->length=0;
+    defaultParaLevel=pBiDi->paraLevel&1;
+    if(isDefaultLevel) {
+        pBiDi->paras[0].level=defaultParaLevel;
+        lastStrong=defaultParaLevel;
+        if(pBiDi->proLength>0 &&                    /* there is a prologue */
+           (dirProp=firstL_R_AL(pBiDi))!=ON) {  /* with a strong character */
+            if(dirProp==L)
+                pBiDi->paras[0].level=0;    /* set the default para level */
+            else
+                pBiDi->paras[0].level=1;    /* set the default para level */
+            state=NOT_SEEKING_STRONG;
+        } else {
+            state=SEEKING_STRONG_FOR_PARA;
+        }
+    } else {
+        pBiDi->paras[0].level=pBiDi->paraLevel;
+        state=NOT_SEEKING_STRONG;
+    }
+    /* count paragraphs and determine the paragraph level (P2..P3) */
+    /*
+     * see comment in ubidi.h:
+     * the UBIDI_DEFAULT_XXX values are designed so that
+     * their bit 0 alone yields the intended default
+     */
+    for( /* i=0 above */ ; i<originalLength; ) {
+        /* i is incremented by U16_NEXT */
+        U16_NEXT(text, i, originalLength, uchar);
+        flags|=DIRPROP_FLAG(dirProp=(DirProp)ubidi_getCustomizedClass(pBiDi, uchar));
+        dirProps[i-1]=dirProp;
+        if(uchar>0xffff) {  /* set the lead surrogate's property to BN */
+            flags|=DIRPROP_FLAG(BN);
+            dirProps[i-2]=BN;
+        }
+        if(removeBiDiControls && IS_BIDI_CONTROL_CHAR(uchar))
+            controlCount++;
+        if(dirProp==L) {
+            if(state==SEEKING_STRONG_FOR_PARA) {
+                pBiDi->paras[pBiDi->paraCount-1].level=0;
+                state=NOT_SEEKING_STRONG;
+            }
+            else if(state==SEEKING_STRONG_FOR_FSI) {
+                if(stackLast<=UBIDI_MAX_EXPLICIT_LEVEL) {
+                    /* no need for next statement, already set by default */
+                    /* dirProps[isolateStartStack[stackLast]]=LRI; */
+                    flags|=DIRPROP_FLAG(LRI);
+                }
+                state=LOOKING_FOR_PDI;
+            }
+            lastStrong=L;
+            continue;
+        }
+        if(dirProp==R || dirProp==AL) {
+            if(state==SEEKING_STRONG_FOR_PARA) {
+                pBiDi->paras[pBiDi->paraCount-1].level=1;
+                state=NOT_SEEKING_STRONG;
+            }
+            else if(state==SEEKING_STRONG_FOR_FSI) {
+                if(stackLast<=UBIDI_MAX_EXPLICIT_LEVEL) {
+                    dirProps[isolateStartStack[stackLast]]=RLI;
+                    flags|=DIRPROP_FLAG(RLI);
+                }
+                state=LOOKING_FOR_PDI;
+            }
+            lastStrong=R;
+            if(dirProp==AL)
+                lastArabicPos=i-1;
+            continue;
+        }
+        if(dirProp>=FSI && dirProp<=RLI) {  /* FSI, LRI or RLI */
+            stackLast++;
+            if(stackLast<=UBIDI_MAX_EXPLICIT_LEVEL) {
+                isolateStartStack[stackLast]=i-1;
+                previousStateStack[stackLast]=state;
+            }
+            if(dirProp==FSI) {
+                dirProps[i-1]=LRI;      /* default if no strong char */
+                state=SEEKING_STRONG_FOR_FSI;
+            }
+            else
+                state=LOOKING_FOR_PDI;
+            continue;
+        }
+        if(dirProp==PDI) {
+            if(state==SEEKING_STRONG_FOR_FSI) {
+                if(stackLast<=UBIDI_MAX_EXPLICIT_LEVEL) {
+                    /* no need for next statement, already set by default */
+                    /* dirProps[isolateStartStack[stackLast]]=LRI; */
+                    flags|=DIRPROP_FLAG(LRI);
+                }
+            }
+            if(stackLast>=0) {
+                if(stackLast<=UBIDI_MAX_EXPLICIT_LEVEL)
+                    state=previousStateStack[stackLast];
+                stackLast--;
+            }
+            continue;
+        }
+        if(dirProp==B) {
+            if(i<originalLength && uchar==CR && text[i]==LF) /* do nothing on the CR */
+                continue;
+            pBiDi->paras[pBiDi->paraCount-1].limit=i;
+            if(isDefaultLevelInverse && lastStrong==R)
+                pBiDi->paras[pBiDi->paraCount-1].level=1;
+            if(pBiDi->reorderingOptions & UBIDI_OPTION_STREAMING) {
+                /* When streaming, we only process whole paragraphs
+                   thus some updates are only done on paragraph boundaries */
+                pBiDi->length=i;        /* i is index to next character */
+                pBiDi->controlCount=controlCount;
+            }
+            if(i<originalLength) {              /* B not last char in text */
+                pBiDi->paraCount++;
+                if(checkParaCount(pBiDi)==FALSE)    /* not enough memory for a new para entry */
+                    return FALSE;
+                if(isDefaultLevel) {
+                    pBiDi->paras[pBiDi->paraCount-1].level=defaultParaLevel;
+                    state=SEEKING_STRONG_FOR_PARA;
+                    lastStrong=defaultParaLevel;
+                } else {
+                    pBiDi->paras[pBiDi->paraCount-1].level=pBiDi->paraLevel;
+                    state=NOT_SEEKING_STRONG;
+                }
+                stackLast=-1;
+            }
+            continue;
+        }
+    }
+    /* Ignore still open isolate sequences with overflow */
+    if(stackLast>UBIDI_MAX_EXPLICIT_LEVEL) {
+        stackLast=UBIDI_MAX_EXPLICIT_LEVEL;
+        state=SEEKING_STRONG_FOR_FSI;   /* to be on the safe side */
+    }
+    /* Resolve direction of still unresolved open FSI sequences */
+    while(stackLast>=0) {
+        if(state==SEEKING_STRONG_FOR_FSI) {
+            /* no need for next statement, already set by default */
+            /* dirProps[isolateStartStack[stackLast]]=LRI; */
+            flags|=DIRPROP_FLAG(LRI);
+            break;
+        }
+        state=previousStateStack[stackLast];
+        stackLast--;
+    }
+    /* When streaming, ignore text after the last paragraph separator */
+    if(pBiDi->reorderingOptions & UBIDI_OPTION_STREAMING) {
+        if(pBiDi->length<originalLength)
+            pBiDi->paraCount--;
+    } else {
+        pBiDi->paras[pBiDi->paraCount-1].limit=originalLength;
+        pBiDi->controlCount=controlCount;
+    }
+    /* For inverse bidi, default para direction is RTL if there is
+       a strong R or AL at either end of the paragraph */
+    if(isDefaultLevelInverse && lastStrong==R) {
+        pBiDi->paras[pBiDi->paraCount-1].level=1;
+    }
+    if(isDefaultLevel) {
+        pBiDi->paraLevel=pBiDi->paras[0].level;
+    }
+    /* The following is needed to resolve the text direction for default level
+       paragraphs containing no strong character */
+    for(i=0; i<pBiDi->paraCount; i++)
+        flags|=DIRPROP_FLAG_LR(pBiDi->paras[i].level);
+
+    if(pBiDi->orderParagraphsLTR && (flags&DIRPROP_FLAG(B))) {
+        flags|=DIRPROP_FLAG(L);
+    }
+    pBiDi->flags=flags;
+    pBiDi->lastArabicPos=lastArabicPos;
+    return TRUE;
+}
+
+/* determine the paragraph level at position index */
+U_CFUNC UBiDiLevel
+ubidi_getParaLevelAtIndex(const UBiDi *pBiDi, int32_t pindex) {
+    int32_t i;
+    for(i=0; i<pBiDi->paraCount; i++)
+        if(pindex<pBiDi->paras[i].limit)
+            break;
+    if(i>=pBiDi->paraCount)
+        i=pBiDi->paraCount-1;
+    return (UBiDiLevel)(pBiDi->paras[i].level);
+}
+
+/* Functions for handling paired brackets ----------------------------------- */
+
+/* In the isoRuns array, the first entry is used for text outside of any
+   isolate sequence.  Higher entries are used for each more deeply nested
+   isolate sequence. isoRunLast is the index of the last used entry.  The
+   openings array is used to note the data of opening brackets not yet
+   matched by a closing bracket, or matched but still susceptible to change
+   level.
+   Each isoRun entry contains the index of the first and
+   one-after-last openings entries for pending opening brackets it
+   contains.  The next openings entry to use is the one-after-last of the
+   most deeply nested isoRun entry.
+   isoRun entries also contain their current embedding level and the last
+   encountered strong character, since these will be needed to resolve
+   the level of paired brackets.  */
+
+static void
+bracketInit(UBiDi *pBiDi, BracketData *bd) {
+    bd->pBiDi=pBiDi;
+    bd->isoRunLast=0;
+    bd->isoRuns[0].start=0;
+    bd->isoRuns[0].limit=0;
+    bd->isoRuns[0].level=GET_PARALEVEL(pBiDi, 0);
+    UBiDiLevel t = GET_PARALEVEL(pBiDi, 0) & 1;
+    bd->isoRuns[0].lastStrong = bd->isoRuns[0].lastBase = t;
+    bd->isoRuns[0].contextDir = (UBiDiDirection)t;
+    bd->isoRuns[0].contextPos=0;
+    if(pBiDi->openingsMemory) {
+        bd->openings=pBiDi->openingsMemory;
+        bd->openingsCount=pBiDi->openingsSize / sizeof(Opening);
+    } else {
+        bd->openings=bd->simpleOpenings;
+        bd->openingsCount=SIMPLE_OPENINGS_COUNT;
+    }
+    bd->isNumbersSpecial=bd->pBiDi->reorderingMode==UBIDI_REORDER_NUMBERS_SPECIAL ||
+                         bd->pBiDi->reorderingMode==UBIDI_REORDER_INVERSE_FOR_NUMBERS_SPECIAL;
+}
+
+/* paragraph boundary */
+static void
+bracketProcessB(BracketData *bd, UBiDiLevel level) {
+    bd->isoRunLast=0;
+    bd->isoRuns[0].limit=0;
+    bd->isoRuns[0].level=level;
+    bd->isoRuns[0].lastStrong=bd->isoRuns[0].lastBase=level&1;
+    bd->isoRuns[0].contextDir=(UBiDiDirection)(level&1);
+    bd->isoRuns[0].contextPos=0;
+}
+
+/* LRE, LRO, RLE, RLO, PDF */
+static void
+bracketProcessBoundary(BracketData *bd, int32_t lastCcPos,
+                       UBiDiLevel contextLevel, UBiDiLevel embeddingLevel) {
+    IsoRun *pLastIsoRun=&bd->isoRuns[bd->isoRunLast];
+    DirProp *dirProps=bd->pBiDi->dirProps;
+    if(DIRPROP_FLAG(dirProps[lastCcPos])&MASK_ISO)  /* after an isolate */
+        return;
+    if(NO_OVERRIDE(embeddingLevel)>NO_OVERRIDE(contextLevel))   /* not a PDF */
+        contextLevel=embeddingLevel;
+    pLastIsoRun->limit=pLastIsoRun->start;
+    pLastIsoRun->level=embeddingLevel;
+    pLastIsoRun->lastStrong=pLastIsoRun->lastBase=contextLevel&1;
+    pLastIsoRun->contextDir=(UBiDiDirection)(contextLevel&1);
+    pLastIsoRun->contextPos=(UBiDiDirection)lastCcPos;
+}
+
+/* LRI or RLI */
+static void
+bracketProcessLRI_RLI(BracketData *bd, UBiDiLevel level) {
+    IsoRun *pLastIsoRun=&bd->isoRuns[bd->isoRunLast];
+    int16_t lastLimit;
+    pLastIsoRun->lastBase=ON;
+    lastLimit=pLastIsoRun->limit;
+    bd->isoRunLast++;
+    pLastIsoRun++;
+    pLastIsoRun->start=pLastIsoRun->limit=lastLimit;
+    pLastIsoRun->level=level;
+    pLastIsoRun->lastStrong=pLastIsoRun->lastBase=level&1;
+    pLastIsoRun->contextDir=(UBiDiDirection)(level&1);
+    pLastIsoRun->contextPos=0;
+}
+
+/* PDI */
+static void
+bracketProcessPDI(BracketData *bd) {
+    IsoRun *pLastIsoRun;
+    bd->isoRunLast--;
+    pLastIsoRun=&bd->isoRuns[bd->isoRunLast];
+    pLastIsoRun->lastBase=ON;
+}
+
+/* newly found opening bracket: create an openings entry */
+static UBool                            /* return TRUE if success */
+bracketAddOpening(BracketData *bd, UChar match, int32_t position) {
+    IsoRun *pLastIsoRun=&bd->isoRuns[bd->isoRunLast];
+    Opening *pOpening;
+    if(pLastIsoRun->limit>=bd->openingsCount) {  /* no available new entry */
+        UBiDi *pBiDi=bd->pBiDi;
+        if(!getInitialOpeningsMemory(pBiDi, pLastIsoRun->limit * 2))
+            return FALSE;
+        if(bd->openings==bd->simpleOpenings)
+            uprv_memcpy(pBiDi->openingsMemory, bd->simpleOpenings,
+                        SIMPLE_OPENINGS_COUNT * sizeof(Opening));
+        bd->openings=pBiDi->openingsMemory;     /* may have changed */
+        bd->openingsCount=pBiDi->openingsSize / sizeof(Opening);
+    }
+    pOpening=&bd->openings[pLastIsoRun->limit];
+    pOpening->position=position;
+    pOpening->match=match;
+    pOpening->contextDir=pLastIsoRun->contextDir;
+    pOpening->contextPos=pLastIsoRun->contextPos;
+    pOpening->flags=0;
+    pLastIsoRun->limit++;
+    return TRUE;
+}
+
+/* change N0c1 to N0c2 when a preceding bracket is assigned the embedding level */
+static void
+fixN0c(BracketData *bd, int32_t openingIndex, int32_t newPropPosition, DirProp newProp) {
+    /* This function calls itself recursively */
+    IsoRun *pLastIsoRun=&bd->isoRuns[bd->isoRunLast];
+    Opening *qOpening;
+    DirProp *dirProps=bd->pBiDi->dirProps;
+    int32_t k, openingPosition, closingPosition;
+    for(k=openingIndex+1, qOpening=&bd->openings[k]; k<pLastIsoRun->limit; k++, qOpening++) {
+        if(qOpening->match>=0)      /* not an N0c match */
+            continue;
+        if(newPropPosition<qOpening->contextPos)
+            break;
+        if(newPropPosition>=qOpening->position)
+            continue;
+        if(newProp==qOpening->contextDir)
+            break;
+        openingPosition=qOpening->position;
+        dirProps[openingPosition]=newProp;
+        closingPosition=-(qOpening->match);
+        dirProps[closingPosition]=newProp;
+        qOpening->match=0;                      /* prevent further changes */
+        fixN0c(bd, k, openingPosition, newProp);
+        fixN0c(bd, k, closingPosition, newProp);
+    }
+}
+
+/* process closing bracket */
+static DirProp              /* return L or R if N0b or N0c, ON if N0d */
+bracketProcessClosing(BracketData *bd, int32_t openIdx, int32_t position) {
+    IsoRun *pLastIsoRun=&bd->isoRuns[bd->isoRunLast];
+    Opening *pOpening, *qOpening;
+    UBiDiDirection direction;
+    UBool stable;
+    DirProp newProp;
+    pOpening=&bd->openings[openIdx];
+    direction=(UBiDiDirection)(pLastIsoRun->level&1);
+    stable=TRUE;            /* assume stable until proved otherwise */
+
+    /* The stable flag is set when brackets are paired and their
+       level is resolved and cannot be changed by what will be
+       found later in the source string.
+       An unstable match can occur only when applying N0c, where
+       the resolved level depends on the preceding context, and
+       this context may be affected by text occurring later.
+       Example: RTL paragraph containing:  abc[(latin) HEBREW]
+       When the closing parenthesis is encountered, it appears
+       that N0c1 must be applied since 'abc' sets an opposite
+       direction context and both parentheses receive level 2.
+       However, when the closing square bracket is processed,
+       N0b applies because of 'HEBREW' being included within the
+       brackets, thus the square brackets are treated like R and
+       receive level 1. However, this changes the preceding
+       context of the opening parenthesis, and it now appears
+       that N0c2 must be applied to the parentheses rather than
+       N0c1. */
+
+    if((direction==0 && pOpening->flags&FOUND_L) ||
+       (direction==1 && pOpening->flags&FOUND_R)) { /* N0b */
+        newProp=direction;
+    }
+    else if(pOpening->flags&(FOUND_L|FOUND_R)) {    /* N0c */
+        /* it is stable if there is no containing pair or in
+           conditions too complicated and not worth checking */
+        stable=(openIdx==pLastIsoRun->start);
+        if(direction!=pOpening->contextDir)
+            newProp=pOpening->contextDir;           /* N0c1 */
+        else
+            newProp=direction;                      /* N0c2 */
+    } else {
+        /* forget this and any brackets nested within this pair */
+        pLastIsoRun->limit=openIdx;
+        return ON;                                  /* N0d */
+    }
+    bd->pBiDi->dirProps[pOpening->position]=newProp;
+    bd->pBiDi->dirProps[position]=newProp;
+    /* Update nested N0c pairs that may be affected */
+    fixN0c(bd, openIdx, pOpening->position, newProp);
+    if(stable) {
+        pLastIsoRun->limit=openIdx; /* forget any brackets nested within this pair */
+        /* remove lower located synonyms if any */
+        while(pLastIsoRun->limit>pLastIsoRun->start &&
+              bd->openings[pLastIsoRun->limit-1].position==pOpening->position)
+            pLastIsoRun->limit--;
+    } else {
+        int32_t k;
+        pOpening->match=-position;
+        /* neutralize lower located synonyms if any */
+        k=openIdx-1;
+        while(k>=pLastIsoRun->start &&
+              bd->openings[k].position==pOpening->position)
+            bd->openings[k--].match=0;
+        /* neutralize any unmatched opening between the current pair;
+           this will also neutralize higher located synonyms if any */
+        for(k=openIdx+1; k<pLastIsoRun->limit; k++) {
+            qOpening=&bd->openings[k];
+            if(qOpening->position>=position)
+                break;
+            if(qOpening->match>0)
+                qOpening->match=0;
+        }
+    }
+    return newProp;
+}
+
+/* handle strong characters, digits and candidates for closing brackets */
+static UBool                            /* return TRUE if success */
+bracketProcessChar(BracketData *bd, int32_t position) {
+    IsoRun *pLastIsoRun=&bd->isoRuns[bd->isoRunLast];
+    DirProp *dirProps, dirProp, newProp;
+    UBiDiLevel level;
+    dirProps=bd->pBiDi->dirProps;
+    dirProp=dirProps[position];
+    if(dirProp==ON) {
+        UChar c, match;
+        int32_t idx;
+        /* First see if it is a matching closing bracket. Hopefully, this is
+           more efficient than checking if it is a closing bracket at all */
+        c=bd->pBiDi->text[position];
+        for(idx=pLastIsoRun->limit-1; idx>=pLastIsoRun->start; idx--) {
+            if(bd->openings[idx].match!=c)
+                continue;
+            /* We have a match */
+            newProp=bracketProcessClosing(bd, idx, position);
+            if(newProp==ON) {           /* N0d */
+                c=0;        /* prevent handling as an opening */
+                break;
+            }
+            pLastIsoRun->lastBase=ON;
+            pLastIsoRun->contextDir=(UBiDiDirection)newProp;
+            pLastIsoRun->contextPos=position;
+            level=bd->pBiDi->levels[position];
+            if(level&UBIDI_LEVEL_OVERRIDE) {    /* X4, X5 */
+                uint16_t flag;
+                int32_t i;
+                newProp=level&1;
+                pLastIsoRun->lastStrong=newProp;
+                flag=DIRPROP_FLAG(newProp);
+                for(i=pLastIsoRun->start; i<idx; i++)
+                    bd->openings[i].flags|=flag;
+                /* matching brackets are not overridden by LRO/RLO */
+                bd->pBiDi->levels[position]&=~UBIDI_LEVEL_OVERRIDE;
+            }
+            /* matching brackets are not overridden by LRO/RLO */
+            bd->pBiDi->levels[bd->openings[idx].position]&=~UBIDI_LEVEL_OVERRIDE;
+            return TRUE;
+        }
+        /* We get here only if the ON character is not a matching closing
+           bracket or it is a case of N0d */
+        /* Now see if it is an opening bracket */
+        if(c)
+            match=u_getBidiPairedBracket(c);    /* get the matching char */
+        else
+            match=0;
+        if(match!=c &&                  /* has a matching char */
+           ubidi_getPairedBracketType(c)==U_BPT_OPEN) { /* opening bracket */
+            /* special case: process synonyms
+               create an opening entry for each synonym */
+            if(match==0x232A) {     /* RIGHT-POINTING ANGLE BRACKET */
+                if(!bracketAddOpening(bd, 0x3009, position))
+                    return FALSE;
+            }
+            else if(match==0x3009) {         /* RIGHT ANGLE BRACKET */
+                if(!bracketAddOpening(bd, 0x232A, position))
+                    return FALSE;
+            }
+            if(!bracketAddOpening(bd, match, position))
+                return FALSE;
+        }
+    }
+    level=bd->pBiDi->levels[position];
+    if(level&UBIDI_LEVEL_OVERRIDE) {    /* X4, X5 */
+        newProp=level&1;
+        if(dirProp!=S && dirProp!=WS && dirProp!=ON)
+            dirProps[position]=newProp;
+        pLastIsoRun->lastBase=newProp;
+        pLastIsoRun->lastStrong=newProp;
+        pLastIsoRun->contextDir=(UBiDiDirection)newProp;
+        pLastIsoRun->contextPos=position;
+    }
+    else if(dirProp<=R || dirProp==AL) {
+        newProp=DIR_FROM_STRONG(dirProp);
+        pLastIsoRun->lastBase=dirProp;
+        pLastIsoRun->lastStrong=dirProp;
+        pLastIsoRun->contextDir=(UBiDiDirection)newProp;
+        pLastIsoRun->contextPos=position;
+    }
+    else if(dirProp==EN) {
+        pLastIsoRun->lastBase=EN;
+        if(pLastIsoRun->lastStrong==L) {
+            newProp=L;                  /* W7 */
+            if(!bd->isNumbersSpecial)
+                dirProps[position]=ENL;
+            pLastIsoRun->contextDir=(UBiDiDirection)L;
+            pLastIsoRun->contextPos=position;
+        }
+        else {
+            newProp=R;                  /* N0 */
+            if(pLastIsoRun->lastStrong==AL)
+                dirProps[position]=AN;  /* W2 */
+            else
+                dirProps[position]=ENR;
+            pLastIsoRun->contextDir=(UBiDiDirection)R;
+            pLastIsoRun->contextPos=position;
+        }
+    }
+    else if(dirProp==AN) {
+        newProp=R;                      /* N0 */
+        pLastIsoRun->lastBase=AN;
+        pLastIsoRun->contextDir=(UBiDiDirection)R;
+        pLastIsoRun->contextPos=position;
+    }
+    else if(dirProp==NSM) {
+        /* if the last real char was ON, change NSM to ON so that it
+           will stay ON even if the last real char is a bracket which
+           may be changed to L or R */
+        newProp=pLastIsoRun->lastBase;
+        if(newProp==ON)
+            dirProps[position]=newProp;
+    }
+    else {
+        newProp=dirProp;
+        pLastIsoRun->lastBase=dirProp;
+    }
+    if(newProp<=R || newProp==AL) {
+        int32_t i;
+        uint16_t flag=DIRPROP_FLAG(DIR_FROM_STRONG(newProp));
+        for(i=pLastIsoRun->start; i<pLastIsoRun->limit; i++)
+            if(position>bd->openings[i].position)
+                bd->openings[i].flags|=flag;
+    }
+    return TRUE;
+}
+
+/* perform (X1)..(X9) ------------------------------------------------------- */
+
+/* determine if the text is mixed-directional or single-directional */
+static UBiDiDirection
+directionFromFlags(UBiDi *pBiDi) {
+    Flags flags=pBiDi->flags;
+    /* if the text contains AN and neutrals, then some neutrals may become RTL */
+    if(!(flags&MASK_RTL || ((flags&DIRPROP_FLAG(AN)) && (flags&MASK_POSSIBLE_N)))) {
+        return UBIDI_LTR;
+    } else if(!(flags&MASK_LTR)) {
+        return UBIDI_RTL;
+    } else {
+        return UBIDI_MIXED;
+    }
+}
+
+/*
+ * Resolve the explicit levels as specified by explicit embedding codes.
+ * Recalculate the flags to have them reflect the real properties
+ * after taking the explicit embeddings into account.
+ *
+ * The BiDi algorithm is designed to result in the same behavior whether embedding
+ * levels are externally specified (from "styled text", supposedly the preferred
+ * method) or set by explicit embedding codes (LRx, RLx, PDF, FSI, PDI) in the plain text.
+ * That is why (X9) instructs to remove all not-isolate explicit codes (and BN).
+ * However, in a real implementation, the removal of these codes and their index
+ * positions in the plain text is undesirable since it would result in
+ * reallocated, reindexed text.
+ * Instead, this implementation leaves the codes in there and just ignores them
+ * in the subsequent processing.
+ * In order to get the same reordering behavior, positions with a BN or a not-isolate
+ * explicit embedding code just get the same level assigned as the last "real"
+ * character.
+ *
+ * Some implementations, not this one, then overwrite some of these
+ * directionality properties at "real" same-level-run boundaries by
+ * L or R codes so that the resolution of weak types can be performed on the
+ * entire paragraph at once instead of having to parse it once more and
+ * perform that resolution on same-level-runs.
+ * This limits the scope of the implicit rules in effectively
+ * the same way as the run limits.
+ *
+ * Instead, this implementation does not modify these codes, except for
+ * paired brackets whose properties (ON) may be replaced by L or R.
+ * On one hand, the paragraph has to be scanned for same-level-runs, but
+ * on the other hand, this saves another loop to reset these codes,
+ * or saves making and modifying a copy of dirProps[].
+ *
+ *
+ * Note that (Pn) and (Xn) changed significantly from version 4 of the BiDi algorithm.
+ *
+ *
+ * Handling the stack of explicit levels (Xn):
+ *
+ * With the BiDi stack of explicit levels, as pushed with each
+ * LRE, RLE, LRO, RLO, LRI, RLI and FSI and popped with each PDF and PDI,
+ * the explicit level must never exceed UBIDI_MAX_EXPLICIT_LEVEL.
+ *
+ * In order to have a correct push-pop semantics even in the case of overflows,
+ * overflow counters and a valid isolate counter are used as described in UAX#9
+ * section 3.3.2 "Explicit Levels and Directions".
+ *
+ * This implementation assumes that UBIDI_MAX_EXPLICIT_LEVEL is odd.
+ *
+ * Returns normally the direction; -1 if there was a memory shortage
+ *
+ */
+static UBiDiDirection
+resolveExplicitLevels(UBiDi *pBiDi, UErrorCode *pErrorCode) {
+    DirProp *dirProps=pBiDi->dirProps;
+    UBiDiLevel *levels=pBiDi->levels;
+    const UChar *text=pBiDi->text;
+
+    int32_t i=0, length=pBiDi->length;
+    Flags flags=pBiDi->flags;       /* collect all directionalities in the text */
+    DirProp dirProp;
+    UBiDiLevel level=GET_PARALEVEL(pBiDi, 0);
+    UBiDiDirection direction;
+    pBiDi->isolateCount=0;
+
+    if(U_FAILURE(*pErrorCode)) { return UBIDI_LTR; }
+
+    /* determine if the text is mixed-directional or single-directional */
+    direction=directionFromFlags(pBiDi);
+
+    /* we may not need to resolve any explicit levels */
+    if((direction!=UBIDI_MIXED)) {
+        /* not mixed directionality: levels don't matter - trailingWSStart will be 0 */
+        return direction;
+    }
+    if(pBiDi->reorderingMode > UBIDI_REORDER_LAST_LOGICAL_TO_VISUAL) {
+        /* inverse BiDi: mixed, but all characters are at the same embedding level */
+        /* set all levels to the paragraph level */
+        int32_t paraIndex, start, limit;
+        for(paraIndex=0; paraIndex<pBiDi->paraCount; paraIndex++) {
+            if(paraIndex==0)
+                start=0;
+            else
+                start=pBiDi->paras[paraIndex-1].limit;
+            limit=pBiDi->paras[paraIndex].limit;
+            level=pBiDi->paras[paraIndex].level;
+            for(i=start; i<limit; i++)
+                levels[i]=level;
+        }
+        return direction;   /* no bracket matching for inverse BiDi */
+    }
+    if(!(flags&(MASK_EXPLICIT|MASK_ISO))) {
+        /* no embeddings, set all levels to the paragraph level */
+        /* we still have to perform bracket matching */
+        int32_t paraIndex, start, limit;
+        BracketData bracketData;
+        bracketInit(pBiDi, &bracketData);
+        for(paraIndex=0; paraIndex<pBiDi->paraCount; paraIndex++) {
+            if(paraIndex==0)
+                start=0;
+            else
+                start=pBiDi->paras[paraIndex-1].limit;
+            limit=pBiDi->paras[paraIndex].limit;
+            level=pBiDi->paras[paraIndex].level;
+            for(i=start; i<limit; i++) {
+                levels[i]=level;
+                dirProp=dirProps[i];
+                if(dirProp==BN)
+                    continue;
+                if(dirProp==B) {
+                    if((i+1)<length) {
+                        if(text[i]==CR && text[i+1]==LF)
+                            continue;   /* skip CR when followed by LF */
+                        bracketProcessB(&bracketData, level);
+                    }
+                    continue;
+                }
+                if(!bracketProcessChar(&bracketData, i)) {
+                    *pErrorCode=U_MEMORY_ALLOCATION_ERROR;
+                    return UBIDI_LTR;
+                }
+            }
+        }
+        return direction;
+    }
+    {
+        /* continue to perform (Xn) */
+
+        /* (X1) level is set for all codes, embeddingLevel keeps track of the push/pop operations */
+        /* both variables may carry the UBIDI_LEVEL_OVERRIDE flag to indicate the override status */
+        UBiDiLevel embeddingLevel=level, newLevel;
+        UBiDiLevel previousLevel=level;     /* previous level for regular (not CC) characters */
+        int32_t lastCcPos=0;                /* index of last effective LRx,RLx, PDx */
+
+        /* The following stack remembers the embedding level and the ISOLATE flag of level runs.
+           stackLast points to its current entry. */
+        uint16_t stack[UBIDI_MAX_EXPLICIT_LEVEL+2];   /* we never push anything >=UBIDI_MAX_EXPLICIT_LEVEL
+                                                        but we need one more entry as base */
+        uint32_t stackLast=0;
+        int32_t overflowIsolateCount=0;
+        int32_t overflowEmbeddingCount=0;
+        int32_t validIsolateCount=0;
+        BracketData bracketData;
+        bracketInit(pBiDi, &bracketData);
+        stack[0]=level;     /* initialize base entry to para level, no override, no isolate */
+
+        /* recalculate the flags */
+        flags=0;
+
+        for(i=0; i<length; ++i) {
+            dirProp=dirProps[i];
+            switch(dirProp) {
+            case LRE:
+            case RLE:
+            case LRO:
+            case RLO:
+                /* (X2, X3, X4, X5) */
+                flags|=DIRPROP_FLAG(BN);
+                levels[i]=previousLevel;
+                if (dirProp==LRE || dirProp==LRO)
+                    /* least greater even level */
+                    newLevel=(UBiDiLevel)((embeddingLevel+2)&~(UBIDI_LEVEL_OVERRIDE|1));
+                else
+                    /* least greater odd level */
+                    newLevel=(UBiDiLevel)((NO_OVERRIDE(embeddingLevel)+1)|1);
+                if(newLevel<=UBIDI_MAX_EXPLICIT_LEVEL && overflowIsolateCount==0 &&
+                                                         overflowEmbeddingCount==0) {
+                    lastCcPos=i;
+                    embeddingLevel=newLevel;
+                    if(dirProp==LRO || dirProp==RLO)
+                        embeddingLevel|=UBIDI_LEVEL_OVERRIDE;
+                    stackLast++;
+                    stack[stackLast]=embeddingLevel;
+                    /* we don't need to set UBIDI_LEVEL_OVERRIDE off for LRE and RLE
+                       since this has already been done for newLevel which is
+                       the source for embeddingLevel.
+                     */
+                } else {
+                    if(overflowIsolateCount==0)
+                        overflowEmbeddingCount++;
+                }
+                break;
+            case PDF:
+                /* (X7) */
+                flags|=DIRPROP_FLAG(BN);
+                levels[i]=previousLevel;
+                /* handle all the overflow cases first */
+                if(overflowIsolateCount) {
+                    break;
+                }
+                if(overflowEmbeddingCount) {
+                    overflowEmbeddingCount--;
+                    break;
+                }
+                if(stackLast>0 && stack[stackLast]<ISOLATE) {   /* not an isolate entry */
+                    lastCcPos=i;
+                    stackLast--;
+                    embeddingLevel=(UBiDiLevel)stack[stackLast];
+                }
+                break;
+            case LRI:
+            case RLI:
+                flags|=(DIRPROP_FLAG(ON)|DIRPROP_FLAG_LR(embeddingLevel));
+                levels[i]=NO_OVERRIDE(embeddingLevel);
+                if(NO_OVERRIDE(embeddingLevel)!=NO_OVERRIDE(previousLevel)) {
+                    bracketProcessBoundary(&bracketData, lastCcPos,
+                                           previousLevel, embeddingLevel);
+                    flags|=DIRPROP_FLAG_MULTI_RUNS;
+                }
+                previousLevel=embeddingLevel;
+                /* (X5a, X5b) */
+                if(dirProp==LRI)
+                    /* least greater even level */
+                    newLevel=(UBiDiLevel)((embeddingLevel+2)&~(UBIDI_LEVEL_OVERRIDE|1));
+                else
+                    /* least greater odd level */
+                    newLevel=(UBiDiLevel)((NO_OVERRIDE(embeddingLevel)+1)|1);
+                if(newLevel<=UBIDI_MAX_EXPLICIT_LEVEL && overflowIsolateCount==0 &&
+                                                         overflowEmbeddingCount==0) {
+                    flags|=DIRPROP_FLAG(dirProp);
+                    lastCcPos=i;
+                    validIsolateCount++;
+                    if(validIsolateCount>pBiDi->isolateCount)
+                        pBiDi->isolateCount=validIsolateCount;
+                    embeddingLevel=newLevel;
+                    /* we can increment stackLast without checking because newLevel
+                       will exceed UBIDI_MAX_EXPLICIT_LEVEL before stackLast overflows */
+                    stackLast++;
+                    stack[stackLast]=embeddingLevel+ISOLATE;
+                    bracketProcessLRI_RLI(&bracketData, embeddingLevel);
+                } else {
+                    /* make it WS so that it is handled by adjustWSLevels() */
+                    dirProps[i]=WS;
+                    overflowIsolateCount++;
+                }
+                break;
+            case PDI:
+                if(NO_OVERRIDE(embeddingLevel)!=NO_OVERRIDE(previousLevel)) {
+                    bracketProcessBoundary(&bracketData, lastCcPos,
+                                           previousLevel, embeddingLevel);
+                    flags|=DIRPROP_FLAG_MULTI_RUNS;
+                }
+                /* (X6a) */
+                if(overflowIsolateCount) {
+                    overflowIsolateCount--;
+                    /* make it WS so that it is handled by adjustWSLevels() */
+                    dirProps[i]=WS;
+                }
+                else if(validIsolateCount) {
+                    flags|=DIRPROP_FLAG(PDI);
+                    lastCcPos=i;
+                    overflowEmbeddingCount=0;
+                    while(stack[stackLast]<ISOLATE) /* pop embedding entries */
+                        stackLast--;                /* until the last isolate entry */
+                    stackLast--;                    /* pop also the last isolate entry */
+                    validIsolateCount--;
+                    bracketProcessPDI(&bracketData);
+                } else
+                    /* make it WS so that it is handled by adjustWSLevels() */
+                    dirProps[i]=WS;
+                embeddingLevel=(UBiDiLevel)stack[stackLast]&~ISOLATE;
+                flags|=(DIRPROP_FLAG(ON)|DIRPROP_FLAG_LR(embeddingLevel));
+                previousLevel=embeddingLevel;
+                levels[i]=NO_OVERRIDE(embeddingLevel);
+                break;
+            case B:
+                flags|=DIRPROP_FLAG(B);
+                levels[i]=GET_PARALEVEL(pBiDi, i);
+                if((i+1)<length) {
+                    if(text[i]==CR && text[i+1]==LF)
+                        break;          /* skip CR when followed by LF */
+                    overflowEmbeddingCount=overflowIsolateCount=0;
+                    validIsolateCount=0;
+                    stackLast=0;
+                    previousLevel=embeddingLevel=GET_PARALEVEL(pBiDi, i+1);
+                    stack[0]=embeddingLevel; /* initialize base entry to para level, no override, no isolate */
+                    bracketProcessB(&bracketData, embeddingLevel);
+                }
+                break;
+            case BN:
+                /* BN, LRE, RLE, and PDF are supposed to be removed (X9) */
+                /* they will get their levels set correctly in adjustWSLevels() */
+                levels[i]=previousLevel;
+                flags|=DIRPROP_FLAG(BN);
+                break;
+            default:
+                /* all other types are normal characters and get the "real" level */
+                if(NO_OVERRIDE(embeddingLevel)!=NO_OVERRIDE(previousLevel)) {
+                    bracketProcessBoundary(&bracketData, lastCcPos,
+                                           previousLevel, embeddingLevel);
+                    flags|=DIRPROP_FLAG_MULTI_RUNS;
+                    if(embeddingLevel&UBIDI_LEVEL_OVERRIDE)
+                        flags|=DIRPROP_FLAG_O(embeddingLevel);
+                    else
+                        flags|=DIRPROP_FLAG_E(embeddingLevel);
+                }
+                previousLevel=embeddingLevel;
+                levels[i]=embeddingLevel;
+                if(!bracketProcessChar(&bracketData, i))
+                    return (UBiDiDirection)-1;
+                /* the dirProp may have been changed in bracketProcessChar() */
+                flags|=DIRPROP_FLAG(dirProps[i]);
+                break;
+            }
+        }
+        if(flags&MASK_EMBEDDING)
+            flags|=DIRPROP_FLAG_LR(pBiDi->paraLevel);
+        if(pBiDi->orderParagraphsLTR && (flags&DIRPROP_FLAG(B)))
+            flags|=DIRPROP_FLAG(L);
+        /* again, determine if the text is mixed-directional or single-directional */
+        pBiDi->flags=flags;
+        direction=directionFromFlags(pBiDi);
+    }
+    return direction;
+}
+
+/*
+ * Use a pre-specified embedding levels array:
+ *
+ * Adjust the directional properties for overrides (->LEVEL_OVERRIDE),
+ * ignore all explicit codes (X9),
+ * and check all the preset levels.
+ *
+ * Recalculate the flags to have them reflect the real properties
+ * after taking the explicit embeddings into account.
+ */
+static UBiDiDirection
+checkExplicitLevels(UBiDi *pBiDi, UErrorCode *pErrorCode) {
+    DirProp *dirProps=pBiDi->dirProps;
+    UBiDiLevel *levels=pBiDi->levels;
+    int32_t isolateCount=0;
+
+    int32_t length=pBiDi->length;
+    Flags flags=0;  /* collect all directionalities in the text */
+    pBiDi->isolateCount=0;
+
+    int32_t currentParaIndex = 0;
+    int32_t currentParaLimit = pBiDi->paras[0].limit;
+    int32_t currentParaLevel = pBiDi->paraLevel;
+
+    for(int32_t i=0; i<length; ++i) {
+        UBiDiLevel level=levels[i];
+        DirProp dirProp=dirProps[i];
+        if(dirProp==LRI || dirProp==RLI) {
+            isolateCount++;
+            if(isolateCount>pBiDi->isolateCount)
+                pBiDi->isolateCount=isolateCount;
+        }
+        else if(dirProp==PDI)
+            isolateCount--;
+        else if(dirProp==B)
+            isolateCount=0;
+
+        // optimized version of  int32_t currentParaLevel = GET_PARALEVEL(pBiDi, i);
+        if (pBiDi->defaultParaLevel != 0 &&
+                i == currentParaLimit && (currentParaIndex + 1) < pBiDi->paraCount) {
+            currentParaLevel = pBiDi->paras[++currentParaIndex].level;
+            currentParaLimit = pBiDi->paras[currentParaIndex].limit;
+        }
+
+        UBiDiLevel overrideFlag = level & UBIDI_LEVEL_OVERRIDE;
+        level &= ~UBIDI_LEVEL_OVERRIDE;
+        if (level < currentParaLevel || UBIDI_MAX_EXPLICIT_LEVEL < level) {
+            if (level == 0) {
+                if (dirProp == B) {
+                    // Paragraph separators are ok with explicit level 0.
+                    // Prevents reordering of paragraphs.
+                } else {
+                    // Treat explicit level 0 as a wildcard for the paragraph level.
+                    // Avoid making the caller guess what the paragraph level would be.
+                    level = (UBiDiLevel)currentParaLevel;
+                    levels[i] = level | overrideFlag;
+                }
+            } else {
+                // 1 <= level < currentParaLevel or UBIDI_MAX_EXPLICIT_LEVEL < level
+                /* level out of bounds */
+                *pErrorCode=U_ILLEGAL_ARGUMENT_ERROR;
+                return UBIDI_LTR;
+            }
+        }
+        if (overrideFlag != 0) {
+            /* keep the override flag in levels[i] but adjust the flags */
+            flags|=DIRPROP_FLAG_O(level);
+        } else {
+            /* set the flags */
+            flags|=DIRPROP_FLAG_E(level)|DIRPROP_FLAG(dirProp);
+        }
+    }
+    if(flags&MASK_EMBEDDING)
+        flags|=DIRPROP_FLAG_LR(pBiDi->paraLevel);
+    /* determine if the text is mixed-directional or single-directional */
+    pBiDi->flags=flags;
+    return directionFromFlags(pBiDi);
+}
+
+/******************************************************************
+ The Properties state machine table
+*******************************************************************
+
+ All table cells are 8 bits:
+      bits 0..4:  next state
+      bits 5..7:  action to perform (if > 0)
+
+ Cells may be of format "n" where n represents the next state
+ (except for the rightmost column).
+ Cells may also be of format "s(x,y)" where x represents an action
+ to perform and y represents the next state.
+
+*******************************************************************
+ Definitions and type for properties state table
+*******************************************************************
+*/
+#define IMPTABPROPS_COLUMNS 16
+#define IMPTABPROPS_RES (IMPTABPROPS_COLUMNS - 1)
+#define GET_STATEPROPS(cell) ((cell)&0x1f)
+#define GET_ACTIONPROPS(cell) ((cell)>>5)
+#define s(action, newState) ((uint8_t)(newState+(action<<5)))
+
+static const uint8_t groupProp[] =          /* dirProp regrouped */
+{
+/*  L   R   EN  ES  ET  AN  CS  B   S   WS  ON  LRE LRO AL  RLE RLO PDF NSM BN  FSI LRI RLI PDI ENL ENR */
+    0,  1,  2,  7,  8,  3,  9,  6,  5,  4,  4,  10, 10, 12, 10, 10, 10, 11, 10, 4,  4,  4,  4,  13, 14
+};
+enum { DirProp_L=0, DirProp_R=1, DirProp_EN=2, DirProp_AN=3, DirProp_ON=4, DirProp_S=5, DirProp_B=6 }; /* reduced dirProp */
+
+/******************************************************************
+
+      PROPERTIES  STATE  TABLE
+
+ In table impTabProps,
+      - the ON column regroups ON and WS, FSI, RLI, LRI and PDI
+      - the BN column regroups BN, LRE, RLE, LRO, RLO, PDF
+      - the Res column is the reduced property assigned to a run
+
+ Action 1: process current run1, init new run1
+        2: init new run2
+        3: process run1, process run2, init new run1
+        4: process run1, set run1=run2, init new run2
+
+ Notes:
+  1) This table is used in resolveImplicitLevels().
+  2) This table triggers actions when there is a change in the Bidi
+     property of incoming characters (action 1).
+  3) Most such property sequences are processed immediately (in
+     fact, passed to processPropertySeq().
+  4) However, numbers are assembled as one sequence. This means
+     that undefined situations (like CS following digits, until
+     it is known if the next char will be a digit) are held until
+     following chars define them.
+     Example: digits followed by CS, then comes another CS or ON;
+              the digits will be processed, then the CS assigned
+              as the start of an ON sequence (action 3).
+  5) There are cases where more than one sequence must be
+     processed, for instance digits followed by CS followed by L:
+     the digits must be processed as one sequence, and the CS
+     must be processed as an ON sequence, all this before starting
+     assembling chars for the opening L sequence.
+
+
+*/
+static const uint8_t impTabProps[][IMPTABPROPS_COLUMNS] =
+{
+/*                        L ,     R ,    EN ,    AN ,    ON ,     S ,     B ,    ES ,    ET ,    CS ,    BN ,   NSM ,    AL ,   ENL ,   ENR , Res */
+/* 0 Init        */ {     1 ,     2 ,     4 ,     5 ,     7 ,    15 ,    17 ,     7 ,     9 ,     7 ,     0 ,     7 ,     3 ,    18 ,    21 , DirProp_ON },
+/* 1 L           */ {     1 , s(1,2), s(1,4), s(1,5), s(1,7),s(1,15),s(1,17), s(1,7), s(1,9), s(1,7),     1 ,     1 , s(1,3),s(1,18),s(1,21),  DirProp_L },
+/* 2 R           */ { s(1,1),     2 , s(1,4), s(1,5), s(1,7),s(1,15),s(1,17), s(1,7), s(1,9), s(1,7),     2 ,     2 , s(1,3),s(1,18),s(1,21),  DirProp_R },
+/* 3 AL          */ { s(1,1), s(1,2), s(1,6), s(1,6), s(1,8),s(1,16),s(1,17), s(1,8), s(1,8), s(1,8),     3 ,     3 ,     3 ,s(1,18),s(1,21),  DirProp_R },
+/* 4 EN          */ { s(1,1), s(1,2),     4 , s(1,5), s(1,7),s(1,15),s(1,17),s(2,10),    11 ,s(2,10),     4 ,     4 , s(1,3),    18 ,    21 , DirProp_EN },
+/* 5 AN          */ { s(1,1), s(1,2), s(1,4),     5 , s(1,7),s(1,15),s(1,17), s(1,7), s(1,9),s(2,12),     5 ,     5 , s(1,3),s(1,18),s(1,21), DirProp_AN },
+/* 6 AL:EN/AN    */ { s(1,1), s(1,2),     6 ,     6 , s(1,8),s(1,16),s(1,17), s(1,8), s(1,8),s(2,13),     6 ,     6 , s(1,3),    18 ,    21 , DirProp_AN },
+/* 7 ON          */ { s(1,1), s(1,2), s(1,4), s(1,5),     7 ,s(1,15),s(1,17),     7 ,s(2,14),     7 ,     7 ,     7 , s(1,3),s(1,18),s(1,21), DirProp_ON },
+/* 8 AL:ON       */ { s(1,1), s(1,2), s(1,6), s(1,6),     8 ,s(1,16),s(1,17),     8 ,     8 ,     8 ,     8 ,     8 , s(1,3),s(1,18),s(1,21), DirProp_ON },
+/* 9 ET          */ { s(1,1), s(1,2),     4 , s(1,5),     7 ,s(1,15),s(1,17),     7 ,     9 ,     7 ,     9 ,     9 , s(1,3),    18 ,    21 , DirProp_ON },
+/*10 EN+ES/CS    */ { s(3,1), s(3,2),     4 , s(3,5), s(4,7),s(3,15),s(3,17), s(4,7),s(4,14), s(4,7),    10 , s(4,7), s(3,3),    18 ,    21 , DirProp_EN },
+/*11 EN+ET       */ { s(1,1), s(1,2),     4 , s(1,5), s(1,7),s(1,15),s(1,17), s(1,7),    11 , s(1,7),    11 ,    11 , s(1,3),    18 ,    21 , DirProp_EN },
+/*12 AN+CS       */ { s(3,1), s(3,2), s(3,4),     5 , s(4,7),s(3,15),s(3,17), s(4,7),s(4,14), s(4,7),    12 , s(4,7), s(3,3),s(3,18),s(3,21), DirProp_AN },
+/*13 AL:EN/AN+CS */ { s(3,1), s(3,2),     6 ,     6 , s(4,8),s(3,16),s(3,17), s(4,8), s(4,8), s(4,8),    13 , s(4,8), s(3,3),    18 ,    21 , DirProp_AN },
+/*14 ON+ET       */ { s(1,1), s(1,2), s(4,4), s(1,5),     7 ,s(1,15),s(1,17),     7 ,    14 ,     7 ,    14 ,    14 , s(1,3),s(4,18),s(4,21), DirProp_ON },
+/*15 S           */ { s(1,1), s(1,2), s(1,4), s(1,5), s(1,7),    15 ,s(1,17), s(1,7), s(1,9), s(1,7),    15 , s(1,7), s(1,3),s(1,18),s(1,21),  DirProp_S },
+/*16 AL:S        */ { s(1,1), s(1,2), s(1,6), s(1,6), s(1,8),    16 ,s(1,17), s(1,8), s(1,8), s(1,8),    16 , s(1,8), s(1,3),s(1,18),s(1,21),  DirProp_S },
+/*17 B           */ { s(1,1), s(1,2), s(1,4), s(1,5), s(1,7),s(1,15),    17 , s(1,7), s(1,9), s(1,7),    17 , s(1,7), s(1,3),s(1,18),s(1,21),  DirProp_B },
+/*18 ENL         */ { s(1,1), s(1,2),    18 , s(1,5), s(1,7),s(1,15),s(1,17),s(2,19),    20 ,s(2,19),    18 ,    18 , s(1,3),    18 ,    21 ,  DirProp_L },
+/*19 ENL+ES/CS   */ { s(3,1), s(3,2),    18 , s(3,5), s(4,7),s(3,15),s(3,17), s(4,7),s(4,14), s(4,7),    19 , s(4,7), s(3,3),    18 ,    21 ,  DirProp_L },
+/*20 ENL+ET      */ { s(1,1), s(1,2),    18 , s(1,5), s(1,7),s(1,15),s(1,17), s(1,7),    20 , s(1,7),    20 ,    20 , s(1,3),    18 ,    21 ,  DirProp_L },
+/*21 ENR         */ { s(1,1), s(1,2),    21 , s(1,5), s(1,7),s(1,15),s(1,17),s(2,22),    23 ,s(2,22),    21 ,    21 , s(1,3),    18 ,    21 , DirProp_AN },
+/*22 ENR+ES/CS   */ { s(3,1), s(3,2),    21 , s(3,5), s(4,7),s(3,15),s(3,17), s(4,7),s(4,14), s(4,7),    22 , s(4,7), s(3,3),    18 ,    21 , DirProp_AN },
+/*23 ENR+ET      */ { s(1,1), s(1,2),    21 , s(1,5), s(1,7),s(1,15),s(1,17), s(1,7),    23 , s(1,7),    23 ,    23 , s(1,3),    18 ,    21 , DirProp_AN }
+};
+
+/*  we must undef macro s because the levels tables have a different
+ *  structure (4 bits for action and 4 bits for next state.
+ */
+#undef s
+
+/******************************************************************
+ The levels state machine tables
+*******************************************************************
+
+ All table cells are 8 bits:
+      bits 0..3:  next state
+      bits 4..7:  action to perform (if > 0)
+
+ Cells may be of format "n" where n represents the next state
+ (except for the rightmost column).
+ Cells may also be of format "s(x,y)" where x represents an action
+ to perform and y represents the next state.
+
+ This format limits each table to 16 states each and to 15 actions.
+
+*******************************************************************
+ Definitions and type for levels state tables
+*******************************************************************
+*/
+#define IMPTABLEVELS_COLUMNS (DirProp_B + 2)
+#define IMPTABLEVELS_RES (IMPTABLEVELS_COLUMNS - 1)
+#define GET_STATE(cell) ((cell)&0x0f)
+#define GET_ACTION(cell) ((cell)>>4)
+#define s(action, newState) ((uint8_t)(newState+(action<<4)))
+
+typedef uint8_t ImpTab[][IMPTABLEVELS_COLUMNS];
+typedef uint8_t ImpAct[];
+
+/* FOOD FOR THOUGHT: each ImpTab should have its associated ImpAct,
+ * instead of having a pair of ImpTab and a pair of ImpAct.
+ */
+typedef struct ImpTabPair {
+    const void * pImpTab[2];
+    const void * pImpAct[2];
+} ImpTabPair;
+
+/******************************************************************
+
+      LEVELS  STATE  TABLES
+
+ In all levels state tables,
+      - state 0 is the initial state
+      - the Res column is the increment to add to the text level
+        for this property sequence.
+
+ The impAct arrays for each table of a pair map the local action
+ numbers of the table to the total list of actions. For instance,
+ action 2 in a given table corresponds to the action number which
+ appears in entry [2] of the impAct array for that table.
+ The first entry of all impAct arrays must be 0.
+
+ Action 1: init conditional sequence
+        2: prepend conditional sequence to current sequence
+        3: set ON sequence to new level - 1
+        4: init EN/AN/ON sequence
+        5: fix EN/AN/ON sequence followed by R
+        6: set previous level sequence to level 2
+
+ Notes:
+  1) These tables are used in processPropertySeq(). The input
+     is property sequences as determined by resolveImplicitLevels.
+  2) Most such property sequences are processed immediately
+     (levels are assigned).
+  3) However, some sequences cannot be assigned a final level till
+     one or more following sequences are received. For instance,
+     ON following an R sequence within an even-level paragraph.
+     If the following sequence is R, the ON sequence will be
+     assigned basic run level+1, and so will the R sequence.
+  4) S is generally handled like ON, since its level will be fixed
+     to paragraph level in adjustWSLevels().
+
+*/
+
+static const ImpTab impTabL_DEFAULT =   /* Even paragraph level */
+/*  In this table, conditional sequences receive the lower possible level
+    until proven otherwise.
+*/
+{
+/*                         L ,     R ,    EN ,    AN ,    ON ,     S ,     B , Res */
+/* 0 : init       */ {     0 ,     1 ,     0 ,     2 ,     0 ,     0 ,     0 ,  0 },
+/* 1 : R          */ {     0 ,     1 ,     3 ,     3 , s(1,4), s(1,4),     0 ,  1 },
+/* 2 : AN         */ {     0 ,     1 ,     0 ,     2 , s(1,5), s(1,5),     0 ,  2 },
+/* 3 : R+EN/AN    */ {     0 ,     1 ,     3 ,     3 , s(1,4), s(1,4),     0 ,  2 },
+/* 4 : R+ON       */ {     0 , s(2,1), s(3,3), s(3,3),     4 ,     4 ,     0 ,  0 },
+/* 5 : AN+ON      */ {     0 , s(2,1),     0 , s(3,2),     5 ,     5 ,     0 ,  0 }
+};
+static const ImpTab impTabR_DEFAULT =   /* Odd  paragraph level */
+/*  In this table, conditional sequences receive the lower possible level
+    until proven otherwise.
+*/
+{
+/*                         L ,     R ,    EN ,    AN ,    ON ,     S ,     B , Res */
+/* 0 : init       */ {     1 ,     0 ,     2 ,     2 ,     0 ,     0 ,     0 ,  0 },
+/* 1 : L          */ {     1 ,     0 ,     1 ,     3 , s(1,4), s(1,4),     0 ,  1 },
+/* 2 : EN/AN      */ {     1 ,     0 ,     2 ,     2 ,     0 ,     0 ,     0 ,  1 },
+/* 3 : L+AN       */ {     1 ,     0 ,     1 ,     3 ,     5 ,     5 ,     0 ,  1 },
+/* 4 : L+ON       */ { s(2,1),     0 , s(2,1),     3 ,     4 ,     4 ,     0 ,  0 },
+/* 5 : L+AN+ON    */ {     1 ,     0 ,     1 ,     3 ,     5 ,     5 ,     0 ,  0 }
+};
+static const ImpAct impAct0 = {0,1,2,3,4};
+static const ImpTabPair impTab_DEFAULT = {{&impTabL_DEFAULT,
+                                           &impTabR_DEFAULT},
+                                          {&impAct0, &impAct0}};
+
+static const ImpTab impTabL_NUMBERS_SPECIAL =   /* Even paragraph level */
+/*  In this table, conditional sequences receive the lower possible level
+    until proven otherwise.
+*/
+{
+/*                         L ,     R ,    EN ,    AN ,    ON ,     S ,     B , Res */
+/* 0 : init       */ {     0 ,     2 , s(1,1), s(1,1),     0 ,     0 ,     0 ,  0 },
+/* 1 : L+EN/AN    */ {     0 , s(4,2),     1 ,     1 ,     0 ,     0 ,     0 ,  0 },
+/* 2 : R          */ {     0 ,     2 ,     4 ,     4 , s(1,3), s(1,3),     0 ,  1 },
+/* 3 : R+ON       */ {     0 , s(2,2), s(3,4), s(3,4),     3 ,     3 ,     0 ,  0 },
+/* 4 : R+EN/AN    */ {     0 ,     2 ,     4 ,     4 , s(1,3), s(1,3),     0 ,  2 }
+};
+static const ImpTabPair impTab_NUMBERS_SPECIAL = {{&impTabL_NUMBERS_SPECIAL,
+                                                   &impTabR_DEFAULT},
+                                                  {&impAct0, &impAct0}};
+
+static const ImpTab impTabL_GROUP_NUMBERS_WITH_R =
+/*  In this table, EN/AN+ON sequences receive levels as if associated with R
+    until proven that there is L or sor/eor on both sides. AN is handled like EN.
+*/
+{
+/*                         L ,     R ,    EN ,    AN ,    ON ,     S ,     B , Res */
+/* 0 init         */ {     0 ,     3 , s(1,1), s(1,1),     0 ,     0 ,     0 ,  0 },
+/* 1 EN/AN        */ { s(2,0),     3 ,     1 ,     1 ,     2 , s(2,0), s(2,0),  2 },
+/* 2 EN/AN+ON     */ { s(2,0),     3 ,     1 ,     1 ,     2 , s(2,0), s(2,0),  1 },
+/* 3 R            */ {     0 ,     3 ,     5 ,     5 , s(1,4),     0 ,     0 ,  1 },
+/* 4 R+ON         */ { s(2,0),     3 ,     5 ,     5 ,     4 , s(2,0), s(2,0),  1 },
+/* 5 R+EN/AN      */ {     0 ,     3 ,     5 ,     5 , s(1,4),     0 ,     0 ,  2 }
+};
+static const ImpTab impTabR_GROUP_NUMBERS_WITH_R =
+/*  In this table, EN/AN+ON sequences receive levels as if associated with R
+    until proven that there is L on both sides. AN is handled like EN.
+*/
+{
+/*                         L ,     R ,    EN ,    AN ,    ON ,     S ,     B , Res */
+/* 0 init         */ {     2 ,     0 ,     1 ,     1 ,     0 ,     0 ,     0 ,  0 },
+/* 1 EN/AN        */ {     2 ,     0 ,     1 ,     1 ,     0 ,     0 ,     0 ,  1 },
+/* 2 L            */ {     2 ,     0 , s(1,4), s(1,4), s(1,3),     0 ,     0 ,  1 },
+/* 3 L+ON         */ { s(2,2),     0 ,     4 ,     4 ,     3 ,     0 ,     0 ,  0 },
+/* 4 L+EN/AN      */ { s(2,2),     0 ,     4 ,     4 ,     3 ,     0 ,     0 ,  1 }
+};
+static const ImpTabPair impTab_GROUP_NUMBERS_WITH_R = {
+                        {&impTabL_GROUP_NUMBERS_WITH_R,
+                         &impTabR_GROUP_NUMBERS_WITH_R},
+                        {&impAct0, &impAct0}};
+
+
+static const ImpTab impTabL_INVERSE_NUMBERS_AS_L =
+/*  This table is identical to the Default LTR table except that EN and AN are
+    handled like L.
+*/
+{
+/*                         L ,     R ,    EN ,    AN ,    ON ,     S ,     B , Res */
+/* 0 : init       */ {     0 ,     1 ,     0 ,     0 ,     0 ,     0 ,     0 ,  0 },
+/* 1 : R          */ {     0 ,     1 ,     0 ,     0 , s(1,4), s(1,4),     0 ,  1 },
+/* 2 : AN         */ {     0 ,     1 ,     0 ,     0 , s(1,5), s(1,5),     0 ,  2 },
+/* 3 : R+EN/AN    */ {     0 ,     1 ,     0 ,     0 , s(1,4), s(1,4),     0 ,  2 },
+/* 4 : R+ON       */ { s(2,0),     1 , s(2,0), s(2,0),     4 ,     4 , s(2,0),  1 },
+/* 5 : AN+ON      */ { s(2,0),     1 , s(2,0), s(2,0),     5 ,     5 , s(2,0),  1 }
+};
+static const ImpTab impTabR_INVERSE_NUMBERS_AS_L =
+/*  This table is identical to the Default RTL table except that EN and AN are
+    handled like L.
+*/
+{
+/*                         L ,     R ,    EN ,    AN ,    ON ,     S ,     B , Res */
+/* 0 : init       */ {     1 ,     0 ,     1 ,     1 ,     0 ,     0 ,     0 ,  0 },
+/* 1 : L          */ {     1 ,     0 ,     1 ,     1 , s(1,4), s(1,4),     0 ,  1 },
+/* 2 : EN/AN      */ {     1 ,     0 ,     1 ,     1 ,     0 ,     0 ,     0 ,  1 },
+/* 3 : L+AN       */ {     1 ,     0 ,     1 ,     1 ,     5 ,     5 ,     0 ,  1 },
+/* 4 : L+ON       */ { s(2,1),     0 , s(2,1), s(2,1),     4 ,     4 ,     0 ,  0 },
+/* 5 : L+AN+ON    */ {     1 ,     0 ,     1 ,     1 ,     5 ,     5 ,     0 ,  0 }
+};
+static const ImpTabPair impTab_INVERSE_NUMBERS_AS_L = {
+                        {&impTabL_INVERSE_NUMBERS_AS_L,
+                         &impTabR_INVERSE_NUMBERS_AS_L},
+                        {&impAct0, &impAct0}};
+
+static const ImpTab impTabR_INVERSE_LIKE_DIRECT =   /* Odd  paragraph level */
+/*  In this table, conditional sequences receive the lower possible level
+    until proven otherwise.
+*/
+{
+/*                         L ,     R ,    EN ,    AN ,    ON ,     S ,     B , Res */
+/* 0 : init       */ {     1 ,     0 ,     2 ,     2 ,     0 ,     0 ,     0 ,  0 },
+/* 1 : L          */ {     1 ,     0 ,     1 ,     2 , s(1,3), s(1,3),     0 ,  1 },
+/* 2 : EN/AN      */ {     1 ,     0 ,     2 ,     2 ,     0 ,     0 ,     0 ,  1 },
+/* 3 : L+ON       */ { s(2,1), s(3,0),     6 ,     4 ,     3 ,     3 , s(3,0),  0 },
+/* 4 : L+ON+AN    */ { s(2,1), s(3,0),     6 ,     4 ,     5 ,     5 , s(3,0),  3 },
+/* 5 : L+AN+ON    */ { s(2,1), s(3,0),     6 ,     4 ,     5 ,     5 , s(3,0),  2 },
+/* 6 : L+ON+EN    */ { s(2,1), s(3,0),     6 ,     4 ,     3 ,     3 , s(3,0),  1 }
+};
+static const ImpAct impAct1 = {0,1,13,14};
+/* FOOD FOR THOUGHT: in LTR table below, check case "JKL 123abc"
+ */
+static const ImpTabPair impTab_INVERSE_LIKE_DIRECT = {
+                        {&impTabL_DEFAULT,
+                         &impTabR_INVERSE_LIKE_DIRECT},
+                        {&impAct0, &impAct1}};
+
+static const ImpTab impTabL_INVERSE_LIKE_DIRECT_WITH_MARKS =
+/*  The case handled in this table is (visually):  R EN L
+*/
+{
+/*                         L ,     R ,    EN ,    AN ,    ON ,     S ,     B , Res */
+/* 0 : init       */ {     0 , s(6,3),     0 ,     1 ,     0 ,     0 ,     0 ,  0 },
+/* 1 : L+AN       */ {     0 , s(6,3),     0 ,     1 , s(1,2), s(3,0),     0 ,  4 },
+/* 2 : L+AN+ON    */ { s(2,0), s(6,3), s(2,0),     1 ,     2 , s(3,0), s(2,0),  3 },
+/* 3 : R          */ {     0 , s(6,3), s(5,5), s(5,6), s(1,4), s(3,0),     0 ,  3 },
+/* 4 : R+ON       */ { s(3,0), s(4,3), s(5,5), s(5,6),     4 , s(3,0), s(3,0),  3 },
+/* 5 : R+EN       */ { s(3,0), s(4,3),     5 , s(5,6), s(1,4), s(3,0), s(3,0),  4 },
+/* 6 : R+AN       */ { s(3,0), s(4,3), s(5,5),     6 , s(1,4), s(3,0), s(3,0),  4 }
+};
+static const ImpTab impTabR_INVERSE_LIKE_DIRECT_WITH_MARKS =
+/*  The cases handled in this table are (visually):  R EN L
+                                                     R L AN L
+*/
+{
+/*                         L ,     R ,    EN ,    AN ,    ON ,     S ,     B , Res */
+/* 0 : init       */ { s(1,3),     0 ,     1 ,     1 ,     0 ,     0 ,     0 ,  0 },
+/* 1 : R+EN/AN    */ { s(2,3),     0 ,     1 ,     1 ,     2 , s(4,0),     0 ,  1 },
+/* 2 : R+EN/AN+ON */ { s(2,3),     0 ,     1 ,     1 ,     2 , s(4,0),     0 ,  0 },
+/* 3 : L          */ {     3 ,     0 ,     3 , s(3,6), s(1,4), s(4,0),     0 ,  1 },
+/* 4 : L+ON       */ { s(5,3), s(4,0),     5 , s(3,6),     4 , s(4,0), s(4,0),  0 },
+/* 5 : L+ON+EN    */ { s(5,3), s(4,0),     5 , s(3,6),     4 , s(4,0), s(4,0),  1 },
+/* 6 : L+AN       */ { s(5,3), s(4,0),     6 ,     6 ,     4 , s(4,0), s(4,0),  3 }
+};
+static const ImpAct impAct2 = {0,1,2,5,6,7,8};
+static const ImpAct impAct3 = {0,1,9,10,11,12};
+static const ImpTabPair impTab_INVERSE_LIKE_DIRECT_WITH_MARKS = {
+                        {&impTabL_INVERSE_LIKE_DIRECT_WITH_MARKS,
+                         &impTabR_INVERSE_LIKE_DIRECT_WITH_MARKS},
+                        {&impAct2, &impAct3}};
+
+static const ImpTabPair impTab_INVERSE_FOR_NUMBERS_SPECIAL = {
+                        {&impTabL_NUMBERS_SPECIAL,
+                         &impTabR_INVERSE_LIKE_DIRECT},
+                        {&impAct0, &impAct1}};
+
+static const ImpTab impTabL_INVERSE_FOR_NUMBERS_SPECIAL_WITH_MARKS =
+/*  The case handled in this table is (visually):  R EN L
+*/
+{
+/*                         L ,     R ,    EN ,    AN ,    ON ,     S ,     B , Res */
+/* 0 : init       */ {     0 , s(6,2),     1 ,     1 ,     0 ,     0 ,     0 ,  0 },
+/* 1 : L+EN/AN    */ {     0 , s(6,2),     1 ,     1 ,     0 , s(3,0),     0 ,  4 },
+/* 2 : R          */ {     0 , s(6,2), s(5,4), s(5,4), s(1,3), s(3,0),     0 ,  3 },
+/* 3 : R+ON       */ { s(3,0), s(4,2), s(5,4), s(5,4),     3 , s(3,0), s(3,0),  3 },
+/* 4 : R+EN/AN    */ { s(3,0), s(4,2),     4 ,     4 , s(1,3), s(3,0), s(3,0),  4 }
+};
+static const ImpTabPair impTab_INVERSE_FOR_NUMBERS_SPECIAL_WITH_MARKS = {
+                        {&impTabL_INVERSE_FOR_NUMBERS_SPECIAL_WITH_MARKS,
+                         &impTabR_INVERSE_LIKE_DIRECT_WITH_MARKS},
+                        {&impAct2, &impAct3}};
+
+#undef s
+
+typedef struct {
+    const ImpTab * pImpTab;             /* level table pointer          */
+    const ImpAct * pImpAct;             /* action map array             */
+    int32_t startON;                    /* start of ON sequence         */
+    int32_t startL2EN;                  /* start of level 2 sequence    */
+    int32_t lastStrongRTL;              /* index of last found R or AL  */
+    int32_t state;                      /* current state                */
+    int32_t runStart;                   /* start position of the run    */
+    UBiDiLevel runLevel;                /* run level before implicit solving */
+} LevState;
+
+/*------------------------------------------------------------------------*/
+
+static void
+addPoint(UBiDi *pBiDi, int32_t pos, int32_t flag)
+  /* param pos:     position where to insert
+     param flag:    one of LRM_BEFORE, LRM_AFTER, RLM_BEFORE, RLM_AFTER
+  */
+{
+#define FIRSTALLOC  10
+    Point point;
+    InsertPoints * pInsertPoints=&(pBiDi->insertPoints);
+
+    if (pInsertPoints->capacity == 0)
+    {
+        pInsertPoints->points=static_cast<Point *>(uprv_malloc(sizeof(Point)*FIRSTALLOC));
+        if (pInsertPoints->points == NULL)
+        {
+            pInsertPoints->errorCode=U_MEMORY_ALLOCATION_ERROR;
+            return;
+        }
+        pInsertPoints->capacity=FIRSTALLOC;
+    }
+    if (pInsertPoints->size >= pInsertPoints->capacity) /* no room for new point */
+    {
+        Point * savePoints=pInsertPoints->points;
+        pInsertPoints->points=static_cast<Point *>(uprv_realloc(pInsertPoints->points,
+                                           pInsertPoints->capacity*2*sizeof(Point)));
+        if (pInsertPoints->points == NULL)
+        {
+            pInsertPoints->points=savePoints;
+            pInsertPoints->errorCode=U_MEMORY_ALLOCATION_ERROR;
+            return;
+        }
+        else  pInsertPoints->capacity*=2;
+    }
+    point.pos=pos;
+    point.flag=flag;
+    pInsertPoints->points[pInsertPoints->size]=point;
+    pInsertPoints->size++;
+#undef FIRSTALLOC
+}
+
+static void
+setLevelsOutsideIsolates(UBiDi *pBiDi, int32_t start, int32_t limit, UBiDiLevel level)
+{
+    DirProp *dirProps=pBiDi->dirProps, dirProp;
+    UBiDiLevel *levels=pBiDi->levels;
+    int32_t isolateCount=0, k;
+    for(k=start; k<limit; k++) {
+        dirProp=dirProps[k];
+        if(dirProp==PDI)
+            isolateCount--;
+        if(isolateCount==0)
+            levels[k]=level;
+        if(dirProp==LRI || dirProp==RLI)
+            isolateCount++;
+    }
+}
+
+/* perform rules (Wn), (Nn), and (In) on a run of the text ------------------ */
+
+/*
+ * This implementation of the (Wn) rules applies all rules in one pass.
+ * In order to do so, it needs a look-ahead of typically 1 character
+ * (except for W5: sequences of ET) and keeps track of changes
+ * in a rule Wp that affect a later Wq (p<q).
+ *
+ * The (Nn) and (In) rules are also performed in that same single loop,
+ * but effectively one iteration behind for white space.
+ *
+ * Since all implicit rules are performed in one step, it is not necessary
+ * to actually store the intermediate directional properties in dirProps[].
+ */
+
+static void
+processPropertySeq(UBiDi *pBiDi, LevState *pLevState, uint8_t _prop,
+                   int32_t start, int32_t limit) {
+    uint8_t cell, oldStateSeq, actionSeq;
+    const ImpTab * pImpTab=pLevState->pImpTab;
+    const ImpAct * pImpAct=pLevState->pImpAct;
+    UBiDiLevel * levels=pBiDi->levels;
+    UBiDiLevel level, addLevel;
+    InsertPoints * pInsertPoints;
+    int32_t start0, k;
+
+    start0=start;                           /* save original start position */
+    oldStateSeq=(uint8_t)pLevState->state;
+    cell=(*pImpTab)[oldStateSeq][_prop];
+    pLevState->state=GET_STATE(cell);       /* isolate the new state */
+    actionSeq=(*pImpAct)[GET_ACTION(cell)]; /* isolate the action */
+    addLevel=(*pImpTab)[pLevState->state][IMPTABLEVELS_RES];
+
+    if(actionSeq) {
+        switch(actionSeq) {
+        case 1:                         /* init ON seq */
+            pLevState->startON=start0;
+            break;
+
+        case 2:                         /* prepend ON seq to current seq */
+            start=pLevState->startON;
+            break;
+
+        case 3:                         /* EN/AN after R+ON */
+            level=pLevState->runLevel+1;
+            setLevelsOutsideIsolates(pBiDi, pLevState->startON, start0, level);
+            break;
+
+        case 4:                         /* EN/AN before R for NUMBERS_SPECIAL */
+            level=pLevState->runLevel+2;
+            setLevelsOutsideIsolates(pBiDi, pLevState->startON, start0, level);
+            break;
+
+        case 5:                         /* L or S after possible relevant EN/AN */
+            /* check if we had EN after R/AL */
+            if (pLevState->startL2EN >= 0) {
+                addPoint(pBiDi, pLevState->startL2EN, LRM_BEFORE);
+            }
+            pLevState->startL2EN=-1;  /* not within previous if since could also be -2 */
+            /* check if we had any relevant EN/AN after R/AL */
+            pInsertPoints=&(pBiDi->insertPoints);
+            if ((pInsertPoints->capacity == 0) ||
+                (pInsertPoints->size <= pInsertPoints->confirmed))
+            {
+                /* nothing, just clean up */
+                pLevState->lastStrongRTL=-1;
+                /* check if we have a pending conditional segment */
+                level=(*pImpTab)[oldStateSeq][IMPTABLEVELS_RES];
+                if ((level & 1) && (pLevState->startON > 0)) {  /* after ON */
+                    start=pLevState->startON;   /* reset to basic run level */
+                }
+                if (_prop == DirProp_S)                /* add LRM before S */
+                {
+                    addPoint(pBiDi, start0, LRM_BEFORE);
+                    pInsertPoints->confirmed=pInsertPoints->size;
+                }
+                break;
+            }
+            /* reset previous RTL cont to level for LTR text */
+            for (k=pLevState->lastStrongRTL+1; k<start0; k++)
+            {
+                /* reset odd level, leave runLevel+2 as is */
+                levels[k]=(levels[k] - 2) & ~1;
+            }
+            /* mark insert points as confirmed */
+            pInsertPoints->confirmed=pInsertPoints->size;
+            pLevState->lastStrongRTL=-1;
+            if (_prop == DirProp_S)            /* add LRM before S */
+            {
+                addPoint(pBiDi, start0, LRM_BEFORE);
+                pInsertPoints->confirmed=pInsertPoints->size;
+            }
+            break;
+
+        case 6:                         /* R/AL after possible relevant EN/AN */
+            /* just clean up */
+            pInsertPoints=&(pBiDi->insertPoints);
+            if (pInsertPoints->capacity > 0)
+                /* remove all non confirmed insert points */
+                pInsertPoints->size=pInsertPoints->confirmed;
+            pLevState->startON=-1;
+            pLevState->startL2EN=-1;
+            pLevState->lastStrongRTL=limit - 1;
+            break;
+
+        case 7:                         /* EN/AN after R/AL + possible cont */
+            /* check for real AN */
+            if ((_prop == DirProp_AN) && (pBiDi->dirProps[start0] == AN) &&
+                (pBiDi->reorderingMode!=UBIDI_REORDER_INVERSE_FOR_NUMBERS_SPECIAL))
+            {
+                /* real AN */
+                if (pLevState->startL2EN == -1) /* if no relevant EN already found */
+                {
+                    /* just note the righmost digit as a strong RTL */
+                    pLevState->lastStrongRTL=limit - 1;
+                    break;
+                }
+                if (pLevState->startL2EN >= 0)  /* after EN, no AN */
+                {
+                    addPoint(pBiDi, pLevState->startL2EN, LRM_BEFORE);
+                    pLevState->startL2EN=-2;
+                }
+                /* note AN */
+                addPoint(pBiDi, start0, LRM_BEFORE);
+                break;
+            }
+            /* if first EN/AN after R/AL */
+            if (pLevState->startL2EN == -1) {
+                pLevState->startL2EN=start0;
+            }
+            break;
+
+        case 8:                         /* note location of latest R/AL */
+            pLevState->lastStrongRTL=limit - 1;
+            pLevState->startON=-1;
+            break;
+
+        case 9:                         /* L after R+ON/EN/AN */
+            /* include possible adjacent number on the left */
+            for (k=start0-1; k>=0 && !(levels[k]&1); k--);
+            if(k>=0) {
+                addPoint(pBiDi, k, RLM_BEFORE);             /* add RLM before */
+                pInsertPoints=&(pBiDi->insertPoints);
+                pInsertPoints->confirmed=pInsertPoints->size;   /* confirm it */
+            }
+            pLevState->startON=start0;
+            break;
+
+        case 10:                        /* AN after L */
+            /* AN numbers between L text on both sides may be trouble. */
+            /* tentatively bracket with LRMs; will be confirmed if followed by L */
+            addPoint(pBiDi, start0, LRM_BEFORE);    /* add LRM before */
+            addPoint(pBiDi, start0, LRM_AFTER);     /* add LRM after  */
+            break;
+
+        case 11:                        /* R after L+ON/EN/AN */
+            /* false alert, infirm LRMs around previous AN */
+            pInsertPoints=&(pBiDi->insertPoints);
+            pInsertPoints->size=pInsertPoints->confirmed;
+            if (_prop == DirProp_S)            /* add RLM before S */
+            {
+                addPoint(pBiDi, start0, RLM_BEFORE);
+                pInsertPoints->confirmed=pInsertPoints->size;
+            }
+            break;
+
+        case 12:                        /* L after L+ON/AN */
+            level=pLevState->runLevel + addLevel;
+            for(k=pLevState->startON; k<start0; k++) {
+                if (levels[k]<level)
+                    levels[k]=level;
+            }
+            pInsertPoints=&(pBiDi->insertPoints);
+            pInsertPoints->confirmed=pInsertPoints->size;   /* confirm inserts */
+            pLevState->startON=start0;
+            break;
+
+        case 13:                        /* L after L+ON+EN/AN/ON */
+            level=pLevState->runLevel;
+            for(k=start0-1; k>=pLevState->startON; k--) {
+                if(levels[k]==level+3) {
+                    while(levels[k]==level+3) {
+                        levels[k--]-=2;
+                    }
+                    while(levels[k]==level) {
+                        k--;
+                    }
+                }
+                if(levels[k]==level+2) {
+                    levels[k]=level;
+                    continue;
+                }
+                levels[k]=level+1;
+            }
+            break;
+
+        case 14:                        /* R after L+ON+EN/AN/ON */
+            level=pLevState->runLevel+1;
+            for(k=start0-1; k>=pLevState->startON; k--) {
+                if(levels[k]>level) {
+                    levels[k]-=2;
+                }
+            }
+            break;
+
+        default:                        /* we should never get here */
+            U_ASSERT(FALSE);
+            break;
+        }
+    }
+    if((addLevel) || (start < start0)) {
+        level=pLevState->runLevel + addLevel;
+        if(start>=pLevState->runStart) {
+            for(k=start; k<limit; k++) {
+                levels[k]=level;
+            }
+        } else {
+            setLevelsOutsideIsolates(pBiDi, start, limit, level);
+        }
+    }
+}
+
+/**
+ * Returns the directionality of the last strong character at the end of the prologue, if any.
+ * Requires prologue!=null.
+ */
+static DirProp
+lastL_R_AL(UBiDi *pBiDi) {
+    const UChar *text=pBiDi->prologue;
+    int32_t length=pBiDi->proLength;
+    int32_t i;
+    UChar32 uchar;
+    DirProp dirProp;
+    for(i=length; i>0; ) {
+        /* i is decremented by U16_PREV */
+        U16_PREV(text, 0, i, uchar);
+        dirProp=(DirProp)ubidi_getCustomizedClass(pBiDi, uchar);
+        if(dirProp==L) {
+            return DirProp_L;
+        }
+        if(dirProp==R || dirProp==AL) {
+            return DirProp_R;
+        }
+        if(dirProp==B) {
+            return DirProp_ON;
+        }
+    }
+    return DirProp_ON;
+}
+
+/**
+ * Returns the directionality of the first strong character, or digit, in the epilogue, if any.
+ * Requires epilogue!=null.
+ */
+static DirProp
+firstL_R_AL_EN_AN(UBiDi *pBiDi) {
+    const UChar *text=pBiDi->epilogue;
+    int32_t length=pBiDi->epiLength;
+    int32_t i;
+    UChar32 uchar;
+    DirProp dirProp;
+    for(i=0; i<length; ) {
+        /* i is incremented by U16_NEXT */
+        U16_NEXT(text, i, length, uchar);
+        dirProp=(DirProp)ubidi_getCustomizedClass(pBiDi, uchar);
+        if(dirProp==L) {
+            return DirProp_L;
+        }
+        if(dirProp==R || dirProp==AL) {
+            return DirProp_R;
+        }
+        if(dirProp==EN) {
+            return DirProp_EN;
+        }
+        if(dirProp==AN) {
+            return DirProp_AN;
+        }
+    }
+    return DirProp_ON;
+}
+
+static void
+resolveImplicitLevels(UBiDi *pBiDi,
+                      int32_t start, int32_t limit,
+                      DirProp sor, DirProp eor) {
+    const DirProp *dirProps=pBiDi->dirProps;
+    DirProp dirProp;
+    LevState levState;
+    int32_t i, start1, start2;
+    uint16_t oldStateImp, stateImp, actionImp;
+    uint8_t gprop, resProp, cell;
+    UBool inverseRTL;
+    DirProp nextStrongProp=R;
+    int32_t nextStrongPos=-1;
+
+    /* check for RTL inverse BiDi mode */
+    /* FOOD FOR THOUGHT: in case of RTL inverse BiDi, it would make sense to
+     * loop on the text characters from end to start.
+     * This would need a different properties state table (at least different
+     * actions) and different levels state tables (maybe very similar to the
+     * LTR corresponding ones.
+     */
+    inverseRTL=(UBool)
+        ((start<pBiDi->lastArabicPos) && (GET_PARALEVEL(pBiDi, start) & 1) &&
+         (pBiDi->reorderingMode==UBIDI_REORDER_INVERSE_LIKE_DIRECT  ||
+          pBiDi->reorderingMode==UBIDI_REORDER_INVERSE_FOR_NUMBERS_SPECIAL));
+
+    /* initialize for property and levels state tables */
+    levState.startL2EN=-1;              /* used for INVERSE_LIKE_DIRECT_WITH_MARKS */
+    levState.lastStrongRTL=-1;          /* used for INVERSE_LIKE_DIRECT_WITH_MARKS */
+    levState.runStart=start;
+    levState.runLevel=pBiDi->levels[start];
+    levState.pImpTab=(const ImpTab*)((pBiDi->pImpTabPair)->pImpTab)[levState.runLevel&1];
+    levState.pImpAct=(const ImpAct*)((pBiDi->pImpTabPair)->pImpAct)[levState.runLevel&1];
+    if(start==0 && pBiDi->proLength>0) {
+        DirProp lastStrong=lastL_R_AL(pBiDi);
+        if(lastStrong!=DirProp_ON) {
+            sor=lastStrong;
+        }
+    }
+    /* The isolates[] entries contain enough information to
+       resume the bidi algorithm in the same state as it was
+       when it was interrupted by an isolate sequence. */
+    if(dirProps[start]==PDI  && pBiDi->isolateCount >= 0) {
+        levState.startON=pBiDi->isolates[pBiDi->isolateCount].startON;
+        start1=pBiDi->isolates[pBiDi->isolateCount].start1;
+        stateImp=pBiDi->isolates[pBiDi->isolateCount].stateImp;
+        levState.state=pBiDi->isolates[pBiDi->isolateCount].state;
+        pBiDi->isolateCount--;
+    } else {
+        levState.startON=-1;
+        start1=start;
+        if(dirProps[start]==NSM)
+            stateImp = 1 + sor;
+        else
+            stateImp=0;
+        levState.state=0;
+        processPropertySeq(pBiDi, &levState, sor, start, start);
+    }
+    start2=start;                       /* to make Java compiler happy */
+
+    for(i=start; i<=limit; i++) {
+        if(i>=limit) {
+            int32_t k;
+            for(k=limit-1; k>start&&(DIRPROP_FLAG(dirProps[k])&MASK_BN_EXPLICIT); k--);
+            dirProp=dirProps[k];
+            if(dirProp==LRI || dirProp==RLI)
+                break;      /* no forced closing for sequence ending with LRI/RLI */
+            gprop=eor;
+        } else {
+            DirProp prop, prop1;
+            prop=dirProps[i];
+            if(prop==B) {
+                pBiDi->isolateCount=-1; /* current isolates stack entry == none */
+            }
+            if(inverseRTL) {
+                if(prop==AL) {
+                    /* AL before EN does not make it AN */
+                    prop=R;
+                } else if(prop==EN) {
+                    if(nextStrongPos<=i) {
+                        /* look for next strong char (L/R/AL) */
+                        int32_t j;
+                        nextStrongProp=R;   /* set default */
+                        nextStrongPos=limit;
+                        for(j=i+1; j<limit; j++) {
+                            prop1=dirProps[j];
+                            if(prop1==L || prop1==R || prop1==AL) {
+                                nextStrongProp=prop1;
+                                nextStrongPos=j;
+                                break;
+                            }
+                        }
+                    }
+                    if(nextStrongProp==AL) {
+                        prop=AN;
+                    }
+                }
+            }
+            gprop=groupProp[prop];
+        }
+        oldStateImp=stateImp;
+        cell=impTabProps[oldStateImp][gprop];
+        stateImp=GET_STATEPROPS(cell);      /* isolate the new state */
+        actionImp=GET_ACTIONPROPS(cell);    /* isolate the action */
+        if((i==limit) && (actionImp==0)) {
+            /* there is an unprocessed sequence if its property == eor   */
+            actionImp=1;                    /* process the last sequence */
+        }
+        if(actionImp) {
+            resProp=impTabProps[oldStateImp][IMPTABPROPS_RES];
+            switch(actionImp) {
+            case 1:             /* process current seq1, init new seq1 */
+                processPropertySeq(pBiDi, &levState, resProp, start1, i);
+                start1=i;
+                break;
+            case 2:             /* init new seq2 */
+                start2=i;
+                break;
+            case 3:             /* process seq1, process seq2, init new seq1 */
+                processPropertySeq(pBiDi, &levState, resProp, start1, start2);
+                processPropertySeq(pBiDi, &levState, DirProp_ON, start2, i);
+                start1=i;
+                break;
+            case 4:             /* process seq1, set seq1=seq2, init new seq2 */
+                processPropertySeq(pBiDi, &levState, resProp, start1, start2);
+                start1=start2;
+                start2=i;
+                break;
+            default:            /* we should never get here */
+                U_ASSERT(FALSE);
+                break;
+            }
+        }
+    }
+
+    /* flush possible pending sequence, e.g. ON */
+    if(limit==pBiDi->length && pBiDi->epiLength>0) {
+        DirProp firstStrong=firstL_R_AL_EN_AN(pBiDi);
+        if(firstStrong!=DirProp_ON) {
+            eor=firstStrong;
+        }
+    }
+
+    /* look for the last char not a BN or LRE/RLE/LRO/RLO/PDF */
+    for(i=limit-1; i>start&&(DIRPROP_FLAG(dirProps[i])&MASK_BN_EXPLICIT); i--);
+    dirProp=dirProps[i];
+    if((dirProp==LRI || dirProp==RLI) && limit<pBiDi->length) {
+        pBiDi->isolateCount++;
+        pBiDi->isolates[pBiDi->isolateCount].stateImp=stateImp;
+        pBiDi->isolates[pBiDi->isolateCount].state=levState.state;
+        pBiDi->isolates[pBiDi->isolateCount].start1=start1;
+        pBiDi->isolates[pBiDi->isolateCount].startON=levState.startON;
+    }
+    else
+        processPropertySeq(pBiDi, &levState, eor, limit, limit);
+}
+
+/* perform (L1) and (X9) ---------------------------------------------------- */
+
+/*
+ * Reset the embedding levels for some non-graphic characters (L1).
+ * This function also sets appropriate levels for BN, and
+ * explicit embedding types that are supposed to have been removed
+ * from the paragraph in (X9).
+ */
+static void
+adjustWSLevels(UBiDi *pBiDi) {
+    const DirProp *dirProps=pBiDi->dirProps;
+    UBiDiLevel *levels=pBiDi->levels;
+    int32_t i;
+
+    if(pBiDi->flags&MASK_WS) {
+        UBool orderParagraphsLTR=pBiDi->orderParagraphsLTR;
+        Flags flag;
+
+        i=pBiDi->trailingWSStart;
+        while(i>0) {
+            /* reset a sequence of WS/BN before eop and B/S to the paragraph paraLevel */
+            while(i>0 && (flag=DIRPROP_FLAG(dirProps[--i]))&MASK_WS) {
+                if(orderParagraphsLTR&&(flag&DIRPROP_FLAG(B))) {
+                    levels[i]=0;
+                } else {
+                    levels[i]=GET_PARALEVEL(pBiDi, i);
+                }
+            }
+
+            /* reset BN to the next character's paraLevel until B/S, which restarts above loop */
+            /* here, i+1 is guaranteed to be <length */
+            while(i>0) {
+                flag=DIRPROP_FLAG(dirProps[--i]);
+                if(flag&MASK_BN_EXPLICIT) {
+                    levels[i]=levels[i+1];
+                } else if(orderParagraphsLTR&&(flag&DIRPROP_FLAG(B))) {
+                    levels[i]=0;
+                    break;
+                } else if(flag&MASK_B_S) {
+                    levels[i]=GET_PARALEVEL(pBiDi, i);
+                    break;
+                }
+            }
+        }
+    }
+}
+
+U_CAPI void U_EXPORT2
+ubidi_setContext(UBiDi *pBiDi,
+                 const UChar *prologue, int32_t proLength,
+                 const UChar *epilogue, int32_t epiLength,
+                 UErrorCode *pErrorCode) {
+    /* check the argument values */
+    RETURN_VOID_IF_NULL_OR_FAILING_ERRCODE(pErrorCode);
+    if(pBiDi==NULL || proLength<-1 || epiLength<-1 ||
+       (prologue==NULL && proLength!=0) || (epilogue==NULL && epiLength!=0)) {
+        *pErrorCode=U_ILLEGAL_ARGUMENT_ERROR;
+        return;
+    }
+
+    if(proLength==-1) {
+        pBiDi->proLength=u_strlen(prologue);
+    } else {
+        pBiDi->proLength=proLength;
+    }
+    if(epiLength==-1) {
+        pBiDi->epiLength=u_strlen(epilogue);
+    } else {
+        pBiDi->epiLength=epiLength;
+    }
+    pBiDi->prologue=prologue;
+    pBiDi->epilogue=epilogue;
+}
+
+static void
+setParaSuccess(UBiDi *pBiDi) {
+    pBiDi->proLength=0;                 /* forget the last context */
+    pBiDi->epiLength=0;
+    pBiDi->pParaBiDi=pBiDi;             /* mark successful setPara */
+}
+
+#define BIDI_MIN(x, y)   ((x)<(y) ? (x) : (y))
+#define BIDI_ABS(x)      ((x)>=0  ? (x) : (-(x)))
+
+static void
+setParaRunsOnly(UBiDi *pBiDi, const UChar *text, int32_t length,
+                UBiDiLevel paraLevel, UErrorCode *pErrorCode) {
+    int32_t *runsOnlyMemory = NULL;
+    int32_t *visualMap;
+    UChar *visualText;
+    int32_t saveLength, saveTrailingWSStart;
+    const UBiDiLevel *levels;
+    UBiDiLevel *saveLevels;
+    UBiDiDirection saveDirection;
+    UBool saveMayAllocateText;
+    Run *runs;
+    int32_t visualLength, i, j, visualStart, logicalStart,
+            runCount, runLength, addedRuns, insertRemove,
+            start, limit, step, indexOddBit, logicalPos,
+            index0, index1;
+    uint32_t saveOptions;
+
+    pBiDi->reorderingMode=UBIDI_REORDER_DEFAULT;
+    if(length==0) {
+        ubidi_setPara(pBiDi, text, length, paraLevel, NULL, pErrorCode);
+        goto cleanup3;
+    }
+    /* obtain memory for mapping table and visual text */
+    runsOnlyMemory=static_cast<int32_t *>(uprv_malloc(length*(sizeof(int32_t)+sizeof(UChar)+sizeof(UBiDiLevel))));
+    if(runsOnlyMemory==NULL) {
+        *pErrorCode=U_MEMORY_ALLOCATION_ERROR;
+        goto cleanup3;
+    }
+    visualMap=runsOnlyMemory;
+    visualText=(UChar *)&visualMap[length];
+    saveLevels=(UBiDiLevel *)&visualText[length];
+    saveOptions=pBiDi->reorderingOptions;
+    if(saveOptions & UBIDI_OPTION_INSERT_MARKS) {
+        pBiDi->reorderingOptions&=~UBIDI_OPTION_INSERT_MARKS;
+        pBiDi->reorderingOptions|=UBIDI_OPTION_REMOVE_CONTROLS;
+    }
+    paraLevel&=1;                       /* accept only 0 or 1 */
+    ubidi_setPara(pBiDi, text, length, paraLevel, NULL, pErrorCode);
+    if(U_FAILURE(*pErrorCode)) {
+        goto cleanup3;
+    }
+    /* we cannot access directly pBiDi->levels since it is not yet set if
+     * direction is not MIXED
+     */
+    levels=ubidi_getLevels(pBiDi, pErrorCode);
+    uprv_memcpy(saveLevels, levels, (size_t)pBiDi->length*sizeof(UBiDiLevel));
+    saveTrailingWSStart=pBiDi->trailingWSStart;
+    saveLength=pBiDi->length;
+    saveDirection=pBiDi->direction;
+
+    /* FOOD FOR THOUGHT: instead of writing the visual text, we could use
+     * the visual map and the dirProps array to drive the second call
+     * to ubidi_setPara (but must make provision for possible removal of
+     * BiDi controls.  Alternatively, only use the dirProps array via
+     * customized classifier callback.
+     */
+    visualLength=ubidi_writeReordered(pBiDi, visualText, length,
+                                      UBIDI_DO_MIRRORING, pErrorCode);
+    ubidi_getVisualMap(pBiDi, visualMap, pErrorCode);
+    if(U_FAILURE(*pErrorCode)) {
+        goto cleanup2;
+    }
+    pBiDi->reorderingOptions=saveOptions;
+
+    pBiDi->reorderingMode=UBIDI_REORDER_INVERSE_LIKE_DIRECT;
+    paraLevel^=1;
+    /* Because what we did with reorderingOptions, visualText may be shorter
+     * than the original text. But we don't want the levels memory to be
+     * reallocated shorter than the original length, since we need to restore
+     * the levels as after the first call to ubidi_setpara() before returning.
+     * We will force mayAllocateText to FALSE before the second call to
+     * ubidi_setpara(), and will restore it afterwards.
+     */
+    saveMayAllocateText=pBiDi->mayAllocateText;
+    pBiDi->mayAllocateText=FALSE;
+    ubidi_setPara(pBiDi, visualText, visualLength, paraLevel, NULL, pErrorCode);
+    pBiDi->mayAllocateText=saveMayAllocateText;
+    ubidi_getRuns(pBiDi, pErrorCode);
+    if(U_FAILURE(*pErrorCode)) {
+        goto cleanup1;
+    }
+    /* check if some runs must be split, count how many splits */
+    addedRuns=0;
+    runCount=pBiDi->runCount;
+    runs=pBiDi->runs;
+    visualStart=0;
+    for(i=0; i<runCount; i++, visualStart+=runLength) {
+        runLength=runs[i].visualLimit-visualStart;
+        if(runLength<2) {
+            continue;
+        }
+        logicalStart=GET_INDEX(runs[i].logicalStart);
+        for(j=logicalStart+1; j<logicalStart+runLength; j++) {
+            index0=visualMap[j];
+            index1=visualMap[j-1];
+            if((BIDI_ABS(index0-index1)!=1) || (saveLevels[index0]!=saveLevels[index1])) {
+                addedRuns++;
+            }
+        }
+    }
+    if(addedRuns) {
+        if(getRunsMemory(pBiDi, runCount+addedRuns)) {
+            if(runCount==1) {
+                /* because we switch from UBiDi.simpleRuns to UBiDi.runs */
+                pBiDi->runsMemory[0]=runs[0];
+            }
+            runs=pBiDi->runs=pBiDi->runsMemory;
+            pBiDi->runCount+=addedRuns;
+        } else {
+            goto cleanup1;
+        }
+    }
+    /* split runs which are not consecutive in source text */
+    for(i=runCount-1; i>=0; i--) {
+        runLength= i==0 ? runs[0].visualLimit :
+                          runs[i].visualLimit-runs[i-1].visualLimit;
+        logicalStart=runs[i].logicalStart;
+        indexOddBit=GET_ODD_BIT(logicalStart);
+        logicalStart=GET_INDEX(logicalStart);
+        if(runLength<2) {
+            if(addedRuns) {
+                runs[i+addedRuns]=runs[i];
+            }
+            logicalPos=visualMap[logicalStart];
+            runs[i+addedRuns].logicalStart=MAKE_INDEX_ODD_PAIR(logicalPos,
+                                            saveLevels[logicalPos]^indexOddBit);
+            continue;
+        }
+        if(indexOddBit) {
+            start=logicalStart;
+            limit=logicalStart+runLength-1;
+            step=1;
+        } else {
+            start=logicalStart+runLength-1;
+            limit=logicalStart;
+            step=-1;
+        }
+        for(j=start; j!=limit; j+=step) {
+            index0=visualMap[j];
+            index1=visualMap[j+step];
+            if((BIDI_ABS(index0-index1)!=1) || (saveLevels[index0]!=saveLevels[index1])) {
+                logicalPos=BIDI_MIN(visualMap[start], index0);
+                runs[i+addedRuns].logicalStart=MAKE_INDEX_ODD_PAIR(logicalPos,
+                                            saveLevels[logicalPos]^indexOddBit);
+                runs[i+addedRuns].visualLimit=runs[i].visualLimit;
+                runs[i].visualLimit-=BIDI_ABS(j-start)+1;
+                insertRemove=runs[i].insertRemove&(LRM_AFTER|RLM_AFTER);
+                runs[i+addedRuns].insertRemove=insertRemove;
+                runs[i].insertRemove&=~insertRemove;
+                start=j+step;
+                addedRuns--;
+            }
+        }
+        if(addedRuns) {
+            runs[i+addedRuns]=runs[i];
+        }
+        logicalPos=BIDI_MIN(visualMap[start], visualMap[limit]);
+        runs[i+addedRuns].logicalStart=MAKE_INDEX_ODD_PAIR(logicalPos,
+                                            saveLevels[logicalPos]^indexOddBit);
+    }
+
+  cleanup1:
+    /* restore initial paraLevel */
+    pBiDi->paraLevel^=1;
+  cleanup2:
+    /* restore real text */
+    pBiDi->text=text;
+    pBiDi->length=saveLength;
+    pBiDi->originalLength=length;
+    pBiDi->direction=saveDirection;
+    /* the saved levels should never excess levelsSize, but we check anyway */
+    if(saveLength>pBiDi->levelsSize) {
+        saveLength=pBiDi->levelsSize;
+    }
+    uprv_memcpy(pBiDi->levels, saveLevels, (size_t)saveLength*sizeof(UBiDiLevel));
+    pBiDi->trailingWSStart=saveTrailingWSStart;
+    if(pBiDi->runCount>1) {
+        pBiDi->direction=UBIDI_MIXED;
+    }
+  cleanup3:
+    /* free memory for mapping table and visual text */
+    uprv_free(runsOnlyMemory);
+
+    pBiDi->reorderingMode=UBIDI_REORDER_RUNS_ONLY;
+}
+
+/* ubidi_setPara ------------------------------------------------------------ */
+
+U_CAPI void U_EXPORT2
+ubidi_setPara(UBiDi *pBiDi, const UChar *text, int32_t length,
+              UBiDiLevel paraLevel, UBiDiLevel *embeddingLevels,
+              UErrorCode *pErrorCode) {
+    UBiDiDirection direction;
+    DirProp *dirProps;
+
+    /* check the argument values */
+    RETURN_VOID_IF_NULL_OR_FAILING_ERRCODE(pErrorCode);
+    if(pBiDi==NULL || text==NULL || length<-1 ||
+       (paraLevel>UBIDI_MAX_EXPLICIT_LEVEL && paraLevel<UBIDI_DEFAULT_LTR)) {
+        *pErrorCode=U_ILLEGAL_ARGUMENT_ERROR;
+        return;
+    }
+
+    if(length==-1) {
+        length=u_strlen(text);
+    }
+
+    /* special treatment for RUNS_ONLY mode */
+    if(pBiDi->reorderingMode==UBIDI_REORDER_RUNS_ONLY) {
+        setParaRunsOnly(pBiDi, text, length, paraLevel, pErrorCode);
+        return;
+    }
+
+    /* initialize the UBiDi structure */
+    pBiDi->pParaBiDi=NULL;          /* mark unfinished setPara */
+    pBiDi->text=text;
+    pBiDi->length=pBiDi->originalLength=pBiDi->resultLength=length;
+    pBiDi->paraLevel=paraLevel;
+    pBiDi->direction=(UBiDiDirection)(paraLevel&1);
+    pBiDi->paraCount=1;
+
+    pBiDi->dirProps=NULL;
+    pBiDi->levels=NULL;
+    pBiDi->runs=NULL;
+    pBiDi->insertPoints.size=0;         /* clean up from last call */
+    pBiDi->insertPoints.confirmed=0;    /* clean up from last call */
+
+    /*
+     * Save the original paraLevel if contextual; otherwise, set to 0.
+     */
+    pBiDi->defaultParaLevel=IS_DEFAULT_LEVEL(paraLevel);
+
+    if(length==0) {
+        /*
+         * For an empty paragraph, create a UBiDi object with the paraLevel and
+         * the flags and the direction set but without allocating zero-length arrays.
+         * There is nothing more to do.
+         */
+        if(IS_DEFAULT_LEVEL(paraLevel)) {
+            pBiDi->paraLevel&=1;
+            pBiDi->defaultParaLevel=0;
+        }
+        pBiDi->flags=DIRPROP_FLAG_LR(paraLevel);
+        pBiDi->runCount=0;
+        pBiDi->paraCount=0;
+        setParaSuccess(pBiDi);          /* mark successful setPara */
+        return;
+    }
+
+    pBiDi->runCount=-1;
+
+    /* allocate paras memory */
+    if(pBiDi->parasMemory)
+        pBiDi->paras=pBiDi->parasMemory;
+    else
+        pBiDi->paras=pBiDi->simpleParas;
+
+    /*
+     * Get the directional properties,
+     * the flags bit-set, and
+     * determine the paragraph level if necessary.
+     */
+    if(getDirPropsMemory(pBiDi, length)) {
+        pBiDi->dirProps=pBiDi->dirPropsMemory;
+        if(!getDirProps(pBiDi)) {
+            *pErrorCode=U_MEMORY_ALLOCATION_ERROR;
+            return;
+        }
+    } else {
+        *pErrorCode=U_MEMORY_ALLOCATION_ERROR;
+        return;
+    }
+    dirProps=pBiDi->dirProps;
+    /* the processed length may have changed if UBIDI_OPTION_STREAMING */
+    length= pBiDi->length;
+    pBiDi->trailingWSStart=length;  /* the levels[] will reflect the WS run */
+
+    /* are explicit levels specified? */
+    if(embeddingLevels==NULL) {
+        /* no: determine explicit levels according to the (Xn) rules */\
+        if(getLevelsMemory(pBiDi, length)) {
+            pBiDi->levels=pBiDi->levelsMemory;
+            direction=resolveExplicitLevels(pBiDi, pErrorCode);
+            if(U_FAILURE(*pErrorCode)) {
+                return;
+            }
+        } else {
+            *pErrorCode=U_MEMORY_ALLOCATION_ERROR;
+            return;
+        }
+    } else {
+        /* set BN for all explicit codes, check that all levels are 0 or paraLevel..UBIDI_MAX_EXPLICIT_LEVEL */
+        pBiDi->levels=embeddingLevels;
+        direction=checkExplicitLevels(pBiDi, pErrorCode);
+        if(U_FAILURE(*pErrorCode)) {
+            return;
+        }
+    }
+
+    /* allocate isolate memory */
+    if(pBiDi->isolateCount<=SIMPLE_ISOLATES_COUNT)
+        pBiDi->isolates=pBiDi->simpleIsolates;
+    else
+        if((int32_t)(pBiDi->isolateCount*sizeof(Isolate))<=pBiDi->isolatesSize)
+            pBiDi->isolates=pBiDi->isolatesMemory;
+        else {
+            if(getInitialIsolatesMemory(pBiDi, pBiDi->isolateCount)) {
+                pBiDi->isolates=pBiDi->isolatesMemory;
+            } else {
+                *pErrorCode=U_MEMORY_ALLOCATION_ERROR;
+                return;
+            }
+        }
+    pBiDi->isolateCount=-1;             /* current isolates stack entry == none */
+
+    /*
+     * The steps after (X9) in the UBiDi algorithm are performed only if
+     * the paragraph text has mixed directionality!
+     */
+    pBiDi->direction=direction;
+    switch(direction) {
+    case UBIDI_LTR:
+        /* all levels are implicitly at paraLevel (important for ubidi_getLevels()) */
+        pBiDi->trailingWSStart=0;
+        break;
+    case UBIDI_RTL:
+        /* all levels are implicitly at paraLevel (important for ubidi_getLevels()) */
+        pBiDi->trailingWSStart=0;
+        break;
+    default:
+        /*
+         *  Choose the right implicit state table
+         */
+        switch(pBiDi->reorderingMode) {
+        case UBIDI_REORDER_DEFAULT:
+            pBiDi->pImpTabPair=&impTab_DEFAULT;
+            break;
+        case UBIDI_REORDER_NUMBERS_SPECIAL:
+            pBiDi->pImpTabPair=&impTab_NUMBERS_SPECIAL;
+            break;
+        case UBIDI_REORDER_GROUP_NUMBERS_WITH_R:
+            pBiDi->pImpTabPair=&impTab_GROUP_NUMBERS_WITH_R;
+            break;
+        case UBIDI_REORDER_INVERSE_NUMBERS_AS_L:
+            pBiDi->pImpTabPair=&impTab_INVERSE_NUMBERS_AS_L;
+            break;
+        case UBIDI_REORDER_INVERSE_LIKE_DIRECT:
+            if (pBiDi->reorderingOptions & UBIDI_OPTION_INSERT_MARKS) {
+                pBiDi->pImpTabPair=&impTab_INVERSE_LIKE_DIRECT_WITH_MARKS;
+            } else {
+                pBiDi->pImpTabPair=&impTab_INVERSE_LIKE_DIRECT;
+            }
+            break;
+        case UBIDI_REORDER_INVERSE_FOR_NUMBERS_SPECIAL:
+            if (pBiDi->reorderingOptions & UBIDI_OPTION_INSERT_MARKS) {
+                pBiDi->pImpTabPair=&impTab_INVERSE_FOR_NUMBERS_SPECIAL_WITH_MARKS;
+            } else {
+                pBiDi->pImpTabPair=&impTab_INVERSE_FOR_NUMBERS_SPECIAL;
+            }
+            break;
+        default:
+            /* we should never get here */
+            U_ASSERT(FALSE);
+            break;
+        }
+        /*
+         * If there are no external levels specified and there
+         * are no significant explicit level codes in the text,
+         * then we can treat the entire paragraph as one run.
+         * Otherwise, we need to perform the following rules on runs of
+         * the text with the same embedding levels. (X10)
+         * "Significant" explicit level codes are ones that actually
+         * affect non-BN characters.
+         * Examples for "insignificant" ones are empty embeddings
+         * LRE-PDF, LRE-RLE-PDF-PDF, etc.
+         */
+        if(embeddingLevels==NULL && pBiDi->paraCount<=1 &&
+                                   !(pBiDi->flags&DIRPROP_FLAG_MULTI_RUNS)) {
+            resolveImplicitLevels(pBiDi, 0, length,
+                                    GET_LR_FROM_LEVEL(GET_PARALEVEL(pBiDi, 0)),
+                                    GET_LR_FROM_LEVEL(GET_PARALEVEL(pBiDi, length-1)));
+        } else {
+            /* sor, eor: start and end types of same-level-run */
+            UBiDiLevel *levels=pBiDi->levels;
+            int32_t start, limit=0;
+            UBiDiLevel level, nextLevel;
+            DirProp sor, eor;
+
+            /* determine the first sor and set eor to it because of the loop body (sor=eor there) */
+            level=GET_PARALEVEL(pBiDi, 0);
+            nextLevel=levels[0];
+            if(level<nextLevel) {
+                eor=GET_LR_FROM_LEVEL(nextLevel);
+            } else {
+                eor=GET_LR_FROM_LEVEL(level);
+            }
+
+            do {
+                /* determine start and limit of the run (end points just behind the run) */
+
+                /* the values for this run's start are the same as for the previous run's end */
+                start=limit;
+                level=nextLevel;
+                if((start>0) && (dirProps[start-1]==B)) {
+                    /* except if this is a new paragraph, then set sor = para level */
+                    sor=GET_LR_FROM_LEVEL(GET_PARALEVEL(pBiDi, start));
+                } else {
+                    sor=eor;
+                }
+
+                /* search for the limit of this run */
+                while((++limit<length) &&
+                      ((levels[limit]==level) ||
+                       (DIRPROP_FLAG(dirProps[limit])&MASK_BN_EXPLICIT))) {}
+
+                /* get the correct level of the next run */
+                if(limit<length) {
+                    nextLevel=levels[limit];
+                } else {
+                    nextLevel=GET_PARALEVEL(pBiDi, length-1);
+                }
+
+                /* determine eor from max(level, nextLevel); sor is last run's eor */
+                if(NO_OVERRIDE(level)<NO_OVERRIDE(nextLevel)) {
+                    eor=GET_LR_FROM_LEVEL(nextLevel);
+                } else {
+                    eor=GET_LR_FROM_LEVEL(level);
+                }
+
+                /* if the run consists of overridden directional types, then there
+                   are no implicit types to be resolved */
+                if(!(level&UBIDI_LEVEL_OVERRIDE)) {
+                    resolveImplicitLevels(pBiDi, start, limit, sor, eor);
+                } else {
+                    /* remove the UBIDI_LEVEL_OVERRIDE flags */
+                    do {
+                        levels[start++]&=~UBIDI_LEVEL_OVERRIDE;
+                    } while(start<limit);
+                }
+            } while(limit<length);
+        }
+        /* check if we got any memory shortage while adding insert points */
+        if (U_FAILURE(pBiDi->insertPoints.errorCode))
+        {
+            *pErrorCode=pBiDi->insertPoints.errorCode;
+            return;
+        }
+        /* reset the embedding levels for some non-graphic characters (L1), (X9) */
+        adjustWSLevels(pBiDi);
+        break;
+    }
+    /* add RLM for inverse Bidi with contextual orientation resolving
+     * to RTL which would not round-trip otherwise
+     */
+    if((pBiDi->defaultParaLevel>0) &&
+       (pBiDi->reorderingOptions & UBIDI_OPTION_INSERT_MARKS) &&
+       ((pBiDi->reorderingMode==UBIDI_REORDER_INVERSE_LIKE_DIRECT) ||
+        (pBiDi->reorderingMode==UBIDI_REORDER_INVERSE_FOR_NUMBERS_SPECIAL))) {
+        int32_t i, j, start, last;
+        UBiDiLevel level;
+        DirProp dirProp;
+        for(i=0; i<pBiDi->paraCount; i++) {
+            last=(pBiDi->paras[i].limit)-1;
+            level=pBiDi->paras[i].level;
+            if(level==0)
+                continue;           /* LTR paragraph */
+            start= i==0 ? 0 : pBiDi->paras[i-1].limit;
+            for(j=last; j>=start; j--) {
+                dirProp=dirProps[j];
+                if(dirProp==L) {
+                    if(j<last) {
+                        while(dirProps[last]==B) {
+                            last--;
+                        }
+                    }
+                    addPoint(pBiDi, last, RLM_BEFORE);
+                    break;
+                }
+                if(DIRPROP_FLAG(dirProp) & MASK_R_AL) {
+                    break;
+                }
+            }
+        }
+    }
+
+    if(pBiDi->reorderingOptions & UBIDI_OPTION_REMOVE_CONTROLS) {
+        pBiDi->resultLength -= pBiDi->controlCount;
+    } else {
+        pBiDi->resultLength += pBiDi->insertPoints.size;
+    }
+    setParaSuccess(pBiDi);              /* mark successful setPara */
+}
+
+U_CAPI void U_EXPORT2
+ubidi_orderParagraphsLTR(UBiDi *pBiDi, UBool orderParagraphsLTR) {
+    if(pBiDi!=NULL) {
+        pBiDi->orderParagraphsLTR=orderParagraphsLTR;
+    }
+}
+
+U_CAPI UBool U_EXPORT2
+ubidi_isOrderParagraphsLTR(UBiDi *pBiDi) {
+    if(pBiDi!=NULL) {
+        return pBiDi->orderParagraphsLTR;
+    } else {
+        return FALSE;
+    }
+}
+
+U_CAPI UBiDiDirection U_EXPORT2
+ubidi_getDirection(const UBiDi *pBiDi) {
+    if(IS_VALID_PARA_OR_LINE(pBiDi)) {
+        return pBiDi->direction;
+    } else {
+        return UBIDI_LTR;
+    }
+}
+
+U_CAPI const UChar * U_EXPORT2
+ubidi_getText(const UBiDi *pBiDi) {
+    if(IS_VALID_PARA_OR_LINE(pBiDi)) {
+        return pBiDi->text;
+    } else {
+        return NULL;
+    }
+}
+
+U_CAPI int32_t U_EXPORT2
+ubidi_getLength(const UBiDi *pBiDi) {
+    if(IS_VALID_PARA_OR_LINE(pBiDi)) {
+        return pBiDi->originalLength;
+    } else {
+        return 0;
+    }
+}
+
+U_CAPI int32_t U_EXPORT2
+ubidi_getProcessedLength(const UBiDi *pBiDi) {
+    if(IS_VALID_PARA_OR_LINE(pBiDi)) {
+        return pBiDi->length;
+    } else {
+        return 0;
+    }
+}
+
+U_CAPI int32_t U_EXPORT2
+ubidi_getResultLength(const UBiDi *pBiDi) {
+    if(IS_VALID_PARA_OR_LINE(pBiDi)) {
+        return pBiDi->resultLength;
+    } else {
+        return 0;
+    }
+}
+
+/* paragraphs API functions ------------------------------------------------- */
+
+U_CAPI UBiDiLevel U_EXPORT2
+ubidi_getParaLevel(const UBiDi *pBiDi) {
+    if(IS_VALID_PARA_OR_LINE(pBiDi)) {
+        return pBiDi->paraLevel;
+    } else {
+        return 0;
+    }
+}
+
+U_CAPI int32_t U_EXPORT2
+ubidi_countParagraphs(UBiDi *pBiDi) {
+    if(!IS_VALID_PARA_OR_LINE(pBiDi)) {
+        return 0;
+    } else {
+        return pBiDi->paraCount;
+    }
+}
+
+U_CAPI void U_EXPORT2
+ubidi_getParagraphByIndex(const UBiDi *pBiDi, int32_t paraIndex,
+                          int32_t *pParaStart, int32_t *pParaLimit,
+                          UBiDiLevel *pParaLevel, UErrorCode *pErrorCode) {
+    int32_t paraStart;
+
+    /* check the argument values */
+    RETURN_VOID_IF_NULL_OR_FAILING_ERRCODE(pErrorCode);
+    RETURN_VOID_IF_NOT_VALID_PARA_OR_LINE(pBiDi, *pErrorCode);
+    RETURN_VOID_IF_BAD_RANGE(paraIndex, 0, pBiDi->paraCount, *pErrorCode);
+
+    pBiDi=pBiDi->pParaBiDi;             /* get Para object if Line object */
+    if(paraIndex) {
+        paraStart=pBiDi->paras[paraIndex-1].limit;
+    } else {
+        paraStart=0;
+    }
+    if(pParaStart!=NULL) {
+        *pParaStart=paraStart;
+    }
+    if(pParaLimit!=NULL) {
+        *pParaLimit=pBiDi->paras[paraIndex].limit;
+    }
+    if(pParaLevel!=NULL) {
+        *pParaLevel=GET_PARALEVEL(pBiDi, paraStart);
+    }
+}
+
+U_CAPI int32_t U_EXPORT2
+ubidi_getParagraph(const UBiDi *pBiDi, int32_t charIndex,
+                          int32_t *pParaStart, int32_t *pParaLimit,
+                          UBiDiLevel *pParaLevel, UErrorCode *pErrorCode) {
+    int32_t paraIndex;
+
+    /* check the argument values */
+    /* pErrorCode will be checked by the call to ubidi_getParagraphByIndex */
+    RETURN_IF_NULL_OR_FAILING_ERRCODE(pErrorCode, -1);
+    RETURN_IF_NOT_VALID_PARA_OR_LINE(pBiDi, *pErrorCode, -1);
+    pBiDi=pBiDi->pParaBiDi;             /* get Para object if Line object */
+    RETURN_IF_BAD_RANGE(charIndex, 0, pBiDi->length, *pErrorCode, -1);
+
+    for(paraIndex=0; charIndex>=pBiDi->paras[paraIndex].limit; paraIndex++);
+    ubidi_getParagraphByIndex(pBiDi, paraIndex, pParaStart, pParaLimit, pParaLevel, pErrorCode);
+    return paraIndex;
+}
+
+U_CAPI void U_EXPORT2
+ubidi_setClassCallback(UBiDi *pBiDi, UBiDiClassCallback *newFn,
+                       const void *newContext, UBiDiClassCallback **oldFn,
+                       const void **oldContext, UErrorCode *pErrorCode)
+{
+    RETURN_VOID_IF_NULL_OR_FAILING_ERRCODE(pErrorCode);
+    if(pBiDi==NULL) {
+        *pErrorCode=U_ILLEGAL_ARGUMENT_ERROR;
+        return;
+    }
+    if( oldFn )
+    {
+        *oldFn = pBiDi->fnClassCallback;
+    }
+    if( oldContext )
+    {
+        *oldContext = pBiDi->coClassCallback;
+    }
+    pBiDi->fnClassCallback = newFn;
+    pBiDi->coClassCallback = newContext;
+}
+
+U_CAPI void U_EXPORT2
+ubidi_getClassCallback(UBiDi *pBiDi, UBiDiClassCallback **fn, const void **context)
+{
+    if(pBiDi==NULL) {
+        return;
+    }
+    if( fn )
+    {
+        *fn = pBiDi->fnClassCallback;
+    }
+    if( context )
+    {
+        *context = pBiDi->coClassCallback;
+    }
+}
+
+U_CAPI UCharDirection U_EXPORT2
+ubidi_getCustomizedClass(UBiDi *pBiDi, UChar32 c)
+{
+    UCharDirection dir;
+
+    if( pBiDi->fnClassCallback == NULL ||
+        (dir = (*pBiDi->fnClassCallback)(pBiDi->coClassCallback, c)) == U_BIDI_CLASS_DEFAULT )
+    {
+        dir = ubidi_getClass(c);
+    }
+    if(dir >= U_CHAR_DIRECTION_COUNT) {
+        dir = (UCharDirection)ON;
+    }
+    return dir;
+}
diff --git a/vendor/icu/src/ubidi_props.cpp b/vendor/icu/src/ubidi_props.cpp
new file mode 100644
index 0000000000..f109e677e5
--- /dev/null
+++ b/vendor/icu/src/ubidi_props.cpp
@@ -0,0 +1,254 @@
+// © 2016 and later: Unicode, Inc. and others.
+// License & terms of use: http://www.unicode.org/copyright.html
+/*
+*******************************************************************************
+*
+*   Copyright (C) 2004-2014, International Business Machines
+*   Corporation and others.  All Rights Reserved.
+*
+*******************************************************************************
+*   file name:  ubidi_props.c
+*   encoding:   UTF-8
+*   tab size:   8 (not used)
+*   indentation:4
+*
+*   created on: 2004dec30
+*   created by: Markus W. Scherer
+*
+*   Low-level Unicode bidi/shaping properties access.
+*/
+
+#include <unicode/utypes.h>
+#include <unicode/uset.h>
+#include <unicode/udata.h> /* UDataInfo */
+#include "ucmndata.h" /* DataHeader */
+#include "udatamem.h"
+#include "uassert.h"
+#include "cmemory.h"
+#include "utrie2.h"
+#include "ubidi_props.h"
+#include "ucln_cmn.h"
+
+struct UBiDiProps {
+    UDataMemory *mem;
+    const int32_t *indexes;
+    const uint32_t *mirrors;
+    const uint8_t *jgArray;
+    const uint8_t *jgArray2;
+
+    UTrie2 trie;
+    uint8_t formatVersion[4];
+};
+
+/* ubidi_props_data.h is machine-generated by genbidi --csource */
+#define INCLUDED_FROM_UBIDI_PROPS_C
+#include "ubidi_props_data.h"
+
+/* set of property starts for UnicodeSet ------------------------------------ */
+
+static UBool U_CALLCONV
+_enumPropertyStartsRange(const void *context, UChar32 start, UChar32 end, uint32_t value) {
+    (void)end;
+    (void)value;
+    /* add the start code point to the USet */
+    const USetAdder *sa=(const USetAdder *)context;
+    sa->add(sa->set, start);
+    return TRUE;
+}
+
+U_CFUNC void
+ubidi_addPropertyStarts(const USetAdder *sa, UErrorCode *pErrorCode) {
+    int32_t i, length;
+    UChar32 c, start, limit;
+
+    const uint8_t *jgArray;
+    uint8_t prev, jg;
+
+    if(U_FAILURE(*pErrorCode)) {
+        return;
+    }
+
+    /* add the start code point of each same-value range of the trie */
+    utrie2_enum(&ubidi_props_singleton.trie, NULL, _enumPropertyStartsRange, sa);
+
+    /* add the code points from the bidi mirroring table */
+    length=ubidi_props_singleton.indexes[UBIDI_IX_MIRROR_LENGTH];
+    for(i=0; i<length; ++i) {
+        c=UBIDI_GET_MIRROR_CODE_POINT(ubidi_props_singleton.mirrors[i]);
+        sa->addRange(sa->set, c, c+1);
+    }
+
+    /* add the code points from the Joining_Group array where the value changes */
+    start=ubidi_props_singleton.indexes[UBIDI_IX_JG_START];
+    limit=ubidi_props_singleton.indexes[UBIDI_IX_JG_LIMIT];
+    jgArray=ubidi_props_singleton.jgArray;
+    for(;;) {
+        prev=0;
+        while(start<limit) {
+            jg=*jgArray++;
+            if(jg!=prev) {
+                sa->add(sa->set, start);
+                prev=jg;
+            }
+            ++start;
+        }
+        if(prev!=0) {
+            /* add the limit code point if the last value was not 0 (it is now start==limit) */
+            sa->add(sa->set, limit);
+        }
+        if(limit==ubidi_props_singleton.indexes[UBIDI_IX_JG_LIMIT]) {
+            /* switch to the second Joining_Group range */
+            start=ubidi_props_singleton.indexes[UBIDI_IX_JG_START2];
+            limit=ubidi_props_singleton.indexes[UBIDI_IX_JG_LIMIT2];
+            jgArray=ubidi_props_singleton.jgArray2;
+        } else {
+            break;
+        }
+    }
+
+    /* add code points with hardcoded properties, plus the ones following them */
+
+    /* (none right now) */
+}
+
+/* property access functions ------------------------------------------------ */
+
+U_CFUNC int32_t
+ubidi_getMaxValue(UProperty which) {
+    int32_t max=ubidi_props_singleton.indexes[UBIDI_MAX_VALUES_INDEX];
+    switch(which) {
+    case UCHAR_BIDI_CLASS:
+        return (max&UBIDI_CLASS_MASK);
+    case UCHAR_JOINING_GROUP:
+        return (max&UBIDI_MAX_JG_MASK)>>UBIDI_MAX_JG_SHIFT;
+    case UCHAR_JOINING_TYPE:
+        return (max&UBIDI_JT_MASK)>>UBIDI_JT_SHIFT;
+    case UCHAR_BIDI_PAIRED_BRACKET_TYPE:
+        return (max&UBIDI_BPT_MASK)>>UBIDI_BPT_SHIFT;
+    default:
+        return -1; /* undefined */
+    }
+}
+
+U_CAPI UCharDirection
+ubidi_getClass(UChar32 c) {
+    uint16_t props=UTRIE2_GET16(&ubidi_props_singleton.trie, c);
+    return (UCharDirection)UBIDI_GET_CLASS(props);
+}
+
+U_CFUNC UBool
+ubidi_isMirrored(UChar32 c) {
+    uint16_t props=UTRIE2_GET16(&ubidi_props_singleton.trie, c);
+    return (UBool)UBIDI_GET_FLAG(props, UBIDI_IS_MIRRORED_SHIFT);
+}
+
+static UChar32
+getMirror(UChar32 c, uint16_t props) {
+    int32_t delta=UBIDI_GET_MIRROR_DELTA(props);
+    if(delta!=UBIDI_ESC_MIRROR_DELTA) {
+        return c+delta;
+    } else {
+        /* look for mirror code point in the mirrors[] table */
+        const uint32_t *mirrors;
+        uint32_t m;
+        int32_t i, length;
+        UChar32 c2;
+
+        mirrors=ubidi_props_singleton.mirrors;
+        length=ubidi_props_singleton.indexes[UBIDI_IX_MIRROR_LENGTH];
+
+        /* linear search */
+        for(i=0; i<length; ++i) {
+            m=mirrors[i];
+            c2=UBIDI_GET_MIRROR_CODE_POINT(m);
+            if(c==c2) {
+                /* found c, return its mirror code point using the index in m */
+                return UBIDI_GET_MIRROR_CODE_POINT(mirrors[UBIDI_GET_MIRROR_INDEX(m)]);
+            } else if(c<c2) {
+                break;
+            }
+        }
+
+        /* c not found, return it itself */
+        return c;
+    }
+}
+
+U_CFUNC UChar32
+ubidi_getMirror(UChar32 c) {
+    uint16_t props=UTRIE2_GET16(&ubidi_props_singleton.trie, c);
+    return getMirror(c, props);
+}
+
+U_CFUNC UBool
+ubidi_isBidiControl(UChar32 c) {
+    uint16_t props=UTRIE2_GET16(&ubidi_props_singleton.trie, c);
+    return (UBool)UBIDI_GET_FLAG(props, UBIDI_BIDI_CONTROL_SHIFT);
+}
+
+U_CFUNC UBool
+ubidi_isJoinControl(UChar32 c) {
+    uint16_t props=UTRIE2_GET16(&ubidi_props_singleton.trie, c);
+    return (UBool)UBIDI_GET_FLAG(props, UBIDI_JOIN_CONTROL_SHIFT);
+}
+
+U_CFUNC UJoiningType
+ubidi_getJoiningType(UChar32 c) {
+    uint16_t props=UTRIE2_GET16(&ubidi_props_singleton.trie, c);
+    return (UJoiningType)((props&UBIDI_JT_MASK)>>UBIDI_JT_SHIFT);
+}
+
+U_CFUNC UJoiningGroup
+ubidi_getJoiningGroup(UChar32 c) {
+    UChar32 start, limit;
+
+    start=ubidi_props_singleton.indexes[UBIDI_IX_JG_START];
+    limit=ubidi_props_singleton.indexes[UBIDI_IX_JG_LIMIT];
+    if(start<=c && c<limit) {
+        return (UJoiningGroup)ubidi_props_singleton.jgArray[c-start];
+    }
+    start=ubidi_props_singleton.indexes[UBIDI_IX_JG_START2];
+    limit=ubidi_props_singleton.indexes[UBIDI_IX_JG_LIMIT2];
+    if(start<=c && c<limit) {
+        return (UJoiningGroup)ubidi_props_singleton.jgArray2[c-start];
+    }
+    return U_JG_NO_JOINING_GROUP;
+}
+
+U_CFUNC UBidiPairedBracketType
+ubidi_getPairedBracketType(UChar32 c) {
+    uint16_t props=UTRIE2_GET16(&ubidi_props_singleton.trie, c);
+    return (UBidiPairedBracketType)((props&UBIDI_BPT_MASK)>>UBIDI_BPT_SHIFT);
+}
+
+U_CFUNC UChar32
+ubidi_getPairedBracket(UChar32 c) {
+    uint16_t props=UTRIE2_GET16(&ubidi_props_singleton.trie, c);
+    if((props&UBIDI_BPT_MASK)==0) {
+        return c;
+    } else {
+        return getMirror(c, props);
+    }
+}
+
+/* public API (see uchar.h) ------------------------------------------------- */
+
+U_CFUNC UCharDirection
+u_charDirection(UChar32 c) {
+    return ubidi_getClass(c);
+}
+
+U_CFUNC UBool
+u_isMirrored(UChar32 c) {
+    return ubidi_isMirrored(c);
+}
+
+U_CFUNC UChar32
+u_charMirror(UChar32 c) {
+    return ubidi_getMirror(c);
+}
+
+U_STABLE UChar32 U_EXPORT2
+u_getBidiPairedBracket(UChar32 c) {
+    return ubidi_getPairedBracket(c);
+}
diff --git a/vendor/icu/src/ubidi_props.h b/vendor/icu/src/ubidi_props.h
new file mode 100644
index 0000000000..2679e3e4a8
--- /dev/null
+++ b/vendor/icu/src/ubidi_props.h
@@ -0,0 +1,148 @@
+// © 2016 and later: Unicode, Inc. and others.
+// License & terms of use: http://www.unicode.org/copyright.html
+/*
+*******************************************************************************
+*
+*   Copyright (C) 2004-2014, International Business Machines
+*   Corporation and others.  All Rights Reserved.
+*
+*******************************************************************************
+*   file name:  ubidi_props.h
+*   encoding:   UTF-8
+*   tab size:   8 (not used)
+*   indentation:4
+*
+*   created on: 2004dec30
+*   created by: Markus W. Scherer
+*
+*   Low-level Unicode bidi/shaping properties access.
+*/
+
+#ifndef __UBIDI_PROPS_H__
+#define __UBIDI_PROPS_H__
+
+#include <unicode/utypes.h>
+#include <unicode/uset.h>
+#include "putilimp.h"
+#include "uset_imp.h"
+#include "udataswp.h"
+
+U_CDECL_BEGIN
+
+/* library API -------------------------------------------------------------- */
+
+U_CFUNC void
+ubidi_addPropertyStarts(const USetAdder *sa, UErrorCode *pErrorCode);
+
+/* property access functions */
+
+U_CFUNC int32_t
+ubidi_getMaxValue(UProperty which);
+
+U_CAPI UCharDirection
+ubidi_getClass(UChar32 c);
+
+U_CFUNC UBool
+ubidi_isMirrored(UChar32 c);
+
+U_CFUNC UChar32
+ubidi_getMirror(UChar32 c);
+
+U_CFUNC UBool
+ubidi_isBidiControl(UChar32 c);
+
+U_CFUNC UBool
+ubidi_isJoinControl(UChar32 c);
+
+U_CFUNC UJoiningType
+ubidi_getJoiningType(UChar32 c);
+
+U_CFUNC UJoiningGroup
+ubidi_getJoiningGroup(UChar32 c);
+
+U_CFUNC UBidiPairedBracketType
+ubidi_getPairedBracketType(UChar32 c);
+
+U_CFUNC UChar32
+ubidi_getPairedBracket(UChar32 c);
+
+/* file definitions --------------------------------------------------------- */
+
+#define UBIDI_DATA_NAME "ubidi"
+#define UBIDI_DATA_TYPE "icu"
+
+/* format "BiDi" */
+#define UBIDI_FMT_0 0x42
+#define UBIDI_FMT_1 0x69
+#define UBIDI_FMT_2 0x44
+#define UBIDI_FMT_3 0x69
+
+/* indexes into indexes[] */
+enum {
+    UBIDI_IX_INDEX_TOP,
+    UBIDI_IX_LENGTH,
+    UBIDI_IX_TRIE_SIZE,
+    UBIDI_IX_MIRROR_LENGTH,
+
+    UBIDI_IX_JG_START,
+    UBIDI_IX_JG_LIMIT,
+    UBIDI_IX_JG_START2,  /* new in format version 2.2, ICU 54 */
+    UBIDI_IX_JG_LIMIT2,
+
+    UBIDI_MAX_VALUES_INDEX=15,
+    UBIDI_IX_TOP=16
+};
+
+/* definitions for 16-bit bidi/shaping properties word ---------------------- */
+
+enum {
+ /* UBIDI_CLASS_SHIFT=0, */     /* bidi class: 5 bits (4..0) */
+    UBIDI_JT_SHIFT=5,           /* joining type: 3 bits (7..5) */
+
+    UBIDI_BPT_SHIFT=8,          /* Bidi_Paired_Bracket_Type(bpt): 2 bits (9..8) */
+
+    UBIDI_JOIN_CONTROL_SHIFT=10,
+    UBIDI_BIDI_CONTROL_SHIFT=11,
+
+    UBIDI_IS_MIRRORED_SHIFT=12,         /* 'is mirrored' */
+    UBIDI_MIRROR_DELTA_SHIFT=13,        /* bidi mirroring delta: 3 bits (15..13) */
+
+    UBIDI_MAX_JG_SHIFT=16               /* max JG value in indexes[UBIDI_MAX_VALUES_INDEX] bits 23..16 */
+};
+
+#define UBIDI_CLASS_MASK        0x0000001f
+#define UBIDI_JT_MASK           0x000000e0
+#define UBIDI_BPT_MASK          0x00000300
+
+#define UBIDI_MAX_JG_MASK       0x00ff0000
+
+#define UBIDI_GET_CLASS(props) ((props)&UBIDI_CLASS_MASK)
+#define UBIDI_GET_FLAG(props, shift) (((props)>>(shift))&1)
+
+#if U_SIGNED_RIGHT_SHIFT_IS_ARITHMETIC
+#   define UBIDI_GET_MIRROR_DELTA(props) ((int16_t)(props)>>UBIDI_MIRROR_DELTA_SHIFT)
+#else
+#   define UBIDI_GET_MIRROR_DELTA(props) (int16_t)(((props)&0x8000) ? (((props)>>UBIDI_MIRROR_DELTA_SHIFT)|0xe000) : ((props)>>UBIDI_MIRROR_DELTA_SHIFT))
+#endif
+
+enum {
+    UBIDI_ESC_MIRROR_DELTA=-4,
+    UBIDI_MIN_MIRROR_DELTA=-3,
+    UBIDI_MAX_MIRROR_DELTA=3
+};
+
+/* definitions for 32-bit mirror table entry -------------------------------- */
+
+enum {
+    /* the source Unicode code point takes 21 bits (20..0) */
+    UBIDI_MIRROR_INDEX_SHIFT=21,
+    UBIDI_MAX_MIRROR_INDEX=0x7ff
+};
+
+#define UBIDI_GET_MIRROR_CODE_POINT(m) (UChar32)((m)&0x1fffff)
+
+#define UBIDI_GET_MIRROR_INDEX(m) ((m)>>UBIDI_MIRROR_INDEX_SHIFT)
+
+U_CDECL_END
+
+#endif
diff --git a/vendor/icu/src/ubidi_props_data.h b/vendor/icu/src/ubidi_props_data.h
new file mode 100644
index 0000000000..98f21510e7
--- /dev/null
+++ b/vendor/icu/src/ubidi_props_data.h
@@ -0,0 +1,841 @@
+// © 2016 and later: Unicode, Inc. and others.
+// License & terms of use: http://www.unicode.org/copyright.html
+//
+// Copyright (C) 1999-2016, International Business Machines
+// Corporation and others.  All Rights Reserved.
+//
+// file name: ubidi_props_data.h
+//
+// machine-generated by: icu/tools/unicode/c/genprops/bidipropsbuilder.cpp
+
+
+#ifdef INCLUDED_FROM_UBIDI_PROPS_C
+
+static const UVersionInfo ubidi_props_dataVersion={0xa,0,0,0};
+
+static const int32_t ubidi_props_indexes[UBIDI_IX_TOP]={0x10,0x6028,0x5cb0,0x1a,0x620,0x8c0,0x10ac0,0x10af0,0,0,0,0,0,0,0,0x6302b6};
+
+static const uint16_t ubidi_props_trieIndex[11856]={
+0x36a,0x372,0x37a,0x382,0x39a,0x3a2,0x3aa,0x3b2,0x38a,0x392,0x38a,0x392,0x38a,0x392,0x38a,0x392,
+0x38a,0x392,0x38a,0x392,0x3b8,0x3c0,0x3c8,0x3d0,0x3d8,0x3e0,0x3dc,0x3e4,0x3ec,0x3f4,0x3ef,0x3f7,
+0x38a,0x392,0x38a,0x392,0x3ff,0x407,0x38a,0x392,0x38a,0x392,0x38a,0x392,0x40d,0x415,0x41d,0x425,
+0x42d,0x435,0x43d,0x445,0x44b,0x453,0x45b,0x463,0x46b,0x473,0x479,0x481,0x489,0x491,0x499,0x4a1,
+0x4ad,0x4a9,0x4b5,0x4bd,0x41f,0x4cd,0x4d5,0x4c5,0x4dd,0x4df,0x4e7,0x4ef,0x4f7,0x4f8,0x500,0x508,
+0x510,0x4f8,0x518,0x51d,0x510,0x4f8,0x525,0x52d,0x4f7,0x535,0x53d,0x4ef,0x542,0x38a,0x54a,0x54e,
+0x556,0x557,0x55f,0x567,0x4f7,0x56f,0x577,0x4ef,0x401,0x57b,0x500,0x4ef,0x38a,0x38a,0x583,0x38a,
+0x38a,0x589,0x591,0x38a,0x38a,0x595,0x59d,0x38a,0x5a1,0x5a8,0x38a,0x5b0,0x5b8,0x5bf,0x541,0x38a,
+0x38a,0x5c7,0x5cf,0x5d7,0x5df,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,
+0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x5e7,0x38a,0x5ef,0x38a,0x38a,0x38a,
+0x5f7,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,
+0x38a,0x38a,0x38a,0x38a,0x5ff,0x38a,0x38a,0x38a,0x607,0x607,0x504,0x504,0x38a,0x60d,0x615,0x5ef,
+0x62b,0x61d,0x61d,0x633,0x63a,0x623,0x38a,0x38a,0x38a,0x642,0x64a,0x38a,0x38a,0x38a,0x64c,0x654,
+0x65c,0x38a,0x663,0x66b,0x38a,0x673,0x38a,0x38a,0x534,0x67b,0x542,0x683,0x401,0x68b,0x38a,0x692,
+0x38a,0x697,0x38a,0x38a,0x38a,0x38a,0x69d,0x6a5,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x3d8,0x6ad,
+0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x6b5,0x6bd,0x6c1,
+0x6d9,0x6df,0x6c9,0x6d1,0x6e7,0x6ef,0x6f3,0x5c2,0x6fb,0x703,0x70b,0x38a,0x713,0x654,0x654,0x654,
+0x723,0x72b,0x733,0x73b,0x740,0x748,0x750,0x71b,0x758,0x760,0x38a,0x766,0x76d,0x654,0x654,0x654,
+0x654,0x56d,0x773,0x654,0x77b,0x38a,0x38a,0x651,0x654,0x654,0x654,0x654,0x654,0x654,0x654,0x654,
+0x654,0x654,0x654,0x654,0x654,0x783,0x654,0x654,0x654,0x654,0x654,0x789,0x654,0x654,0x791,0x799,
+0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x654,0x654,0x654,0x654,0x7a9,0x7b0,0x7b8,0x7a1,
+0x7c8,0x7d0,0x7d8,0x7df,0x7e7,0x7ef,0x7f6,0x7c0,0x654,0x654,0x654,0x7fe,0x804,0x80a,0x812,0x817,
+0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x81e,0x38a,0x38a,0x38a,0x826,0x38a,0x38a,0x38a,0x3d8,
+0x82e,0x836,0x763,0x38a,0x839,0x654,0x654,0x657,0x654,0x654,0x654,0x654,0x654,0x654,0x840,0x846,
+0x856,0x84e,0x38a,0x38a,0x85e,0x5f7,0x38a,0x3b1,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x654,0x825,
+0x3bf,0x38a,0x866,0x86e,0x38a,0x876,0x817,0x38a,0x38a,0x38a,0x38a,0x87e,0x38a,0x38a,0x64c,0x3b0,
+0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,
+0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,
+0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,
+0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,
+0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,
+0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,
+0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,
+0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,
+0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,
+0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,
+0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,
+0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,
+0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x654,0x654,
+0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,
+0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,
+0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,
+0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,0x38a,
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+0xb2,0xb2,0xb2,0xb2,0xb2,0xb2,0xb2,0xb2,0xb2,0xb2,0xb2,0xb2,0xb2,0xb2,0xb2,0xb2,
+0xb2,0xb2,0xb2,0xb2,0xb2,0xb2,0xb2,0xb2,0x12,0xb2,0x12,0x12,0x12,0x12,0x12,0x12,
+0x12,0x12,0x12,0x12,0x12,0x12,0x12,0x12,0x12,0x12,0x12,0x12,0x12,0x12,0x12,0x12,
+0x12,0x12,0x12,0x12,0x12,0x12,0x12,0x12,0x12,0x12,0x12,0x12,0xb1,0xb1,0xb1,0xb1,
+0xb1,0xb1,0xb1,0xb1,0xb1,0xb1,0xb1,0xb1,0xb1,0xb1,0xb1,0xb1,0x12,0x12,0x12,0x12,
+0x12,0x12,0x12,0x12,0x12,0x12,0x12,0x12,0x12,0x12,0x12,0x12,0,0,0,0
+};
+
+static const uint32_t ubidi_props_mirrors[26]={
+0x2000ab,0xbb,0x2a02215,0x1202243,0x2802298,0x2c022a6,0x30022a8,0x2e022a9,0x32022ab,0x6022cd,0x1e022f2,0x20022f3,0x22022f4,0x24022f6,0x26022f7,0x14022fa,
+0x16022fb,0x18022fc,0x1a022fd,0x1c022fe,0x8029b8,0x4029f5,0xa02ade,0xe02ae3,0xc02ae4,0x1002ae5
+};
+
+static const uint8_t ubidi_props_jgArray[672]={
+0x2d,0,3,3,0x2c,3,0x2d,3,4,0x2a,4,4,0xd,0xd,0xd,6,
+6,0x1f,0x1f,0x23,0x23,0x21,0x21,0x28,0x28,1,1,0xb,0xb,0x37,0x37,0x37,
+0,9,0x1d,0x13,0x16,0x18,0x1a,0x10,0x2c,0x2d,0x2d,0,0,0,0,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,4,0x1d,
+0,3,3,3,0,3,0x2c,0x2c,0x2d,4,4,4,4,4,4,4,
+4,0xd,0xd,0xd,0xd,0xd,0xd,0xd,6,6,6,6,6,6,6,6,
+6,0x1f,0x1f,0x1f,0x1f,0x1f,0x1f,0x1f,0x1f,0x1f,0x23,0x23,0x23,0x21,0x21,0x28,
+1,9,9,9,9,9,9,0x1d,0x1d,0xb,0x26,0xb,0x13,0x13,0x13,0xb,
+0xb,0xb,0xb,0xb,0xb,0x16,0x16,0x16,0x16,0x1a,0x1a,0x1a,0x1a,0x38,0x15,0xd,
+0x2a,0x11,0x11,0xe,0x2c,0x2c,0x2c,0x2c,0x2c,0x2c,0x2c,0x2c,0x37,0x2f,0x37,0x2c,
+0x2d,0x2d,0x2e,0x2e,0,0x2a,0,0,0,0,0,0,0,0,0,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,6,0x1f,
+0,0,0,0,0,0,0,0,0,0,0x23,0x21,1,0,0,0x15,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+2,0,5,0xc,0xc,7,7,0xf,0x27,0x32,0x12,0x2b,0x2b,0x30,0x31,0x14,
+0x17,0x19,0x1b,0x24,0xa,8,0x1c,0x20,0x22,0x1e,7,0x25,0x29,5,0xc,7,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0x35,0x34,0x33,
+4,4,4,4,4,4,4,0xd,0xd,6,6,0x1f,0x23,1,1,1,
+9,9,0xb,0xb,0xb,0x18,0x18,0x1a,0x1a,0x1a,0x16,0x1f,0x1f,0x23,0xd,0xd,
+0x23,0x1f,0xd,3,3,0x37,0x37,0x2d,0x2c,0x2c,0x36,0x36,0xd,0x23,0x23,0x13,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0x5d,0x5a,0x60,0x63,0x5e,0x5f,0x59,0x61,0x5b,0x5c,0x62,0,0,0,0,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+4,4,0xd,0x28,9,0x1d,0x16,0x18,0x2d,0x2d,0x1f,0x2c,0x39,0,6,0x21,
+0xb,0x55,0x1f,1,0x13,0,4,4,4,0x1f,0x2d,0x56,0x58,0x57,0,0
+};
+
+static const uint8_t ubidi_props_jgArray2[48]={
+0x3a,0x3c,0x3c,0x40,0x40,0x3d,0,0x52,0,0x54,0x54,0,0,0x41,0x4f,0x53,
+0x43,0x43,0x43,0x44,0x3e,0x50,0x45,0x46,0x4c,0x3b,0x3b,0x48,0x48,0x4b,0x49,0x49,
+0x49,0x4a,0,0,0x4d,0,0,0,0,0,0,0x47,0x3f,0x4e,0x51,0x42
+};
+
+static const UBiDiProps ubidi_props_singleton={
+  NULL,
+  ubidi_props_indexes,
+  ubidi_props_mirrors,
+  ubidi_props_jgArray,
+  ubidi_props_jgArray2,
+  {
+    ubidi_props_trieIndex,
+    ubidi_props_trieIndex+3496,
+    NULL,
+    3496,
+    8360,
+    0x1a0,
+    0xe28,
+    0x0,
+    0x0,
+    0x110000,
+    0x2e4c,
+    NULL, 0, FALSE, FALSE, 0, NULL
+  },
+  { 2,2,0,0 }
+};
+
+#endif  // INCLUDED_FROM_UBIDI_PROPS_C
diff --git a/vendor/icu/src/ubidiimp.h b/vendor/icu/src/ubidiimp.h
new file mode 100644
index 0000000000..e070125781
--- /dev/null
+++ b/vendor/icu/src/ubidiimp.h
@@ -0,0 +1,468 @@
+// © 2016 and later: Unicode, Inc. and others.
+// License & terms of use: http://www.unicode.org/copyright.html
+/*
+******************************************************************************
+*
+*   Copyright (C) 1999-2016, International Business Machines
+*   Corporation and others.  All Rights Reserved.
+*
+******************************************************************************
+*   file name:  ubidiimp.h
+*   encoding:   UTF-8
+*   tab size:   8 (not used)
+*   indentation:4
+*
+*   created on: 1999aug06
+*   created by: Markus W. Scherer, updated by Matitiahu Allouche
+*/
+
+#ifndef UBIDIIMP_H
+#define UBIDIIMP_H
+
+#include <unicode/utypes.h>
+#include <unicode/ubidi.h>
+#include <unicode/uchar.h>
+#include "ubidi_props.h"
+
+/* miscellaneous definitions ---------------------------------------------- */
+
+typedef uint8_t DirProp;
+typedef uint32_t Flags;
+
+/*  Comparing the description of the BiDi algorithm with this implementation
+    is easier with the same names for the BiDi types in the code as there.
+    See UCharDirection in uchar.h .
+*/
+enum {
+    L=  U_LEFT_TO_RIGHT,                /*  0 */
+    R=  U_RIGHT_TO_LEFT,                /*  1 */
+    EN= U_EUROPEAN_NUMBER,              /*  2 */
+    ES= U_EUROPEAN_NUMBER_SEPARATOR,    /*  3 */
+    ET= U_EUROPEAN_NUMBER_TERMINATOR,   /*  4 */
+    AN= U_ARABIC_NUMBER,                /*  5 */
+    CS= U_COMMON_NUMBER_SEPARATOR,      /*  6 */
+    B=  U_BLOCK_SEPARATOR,              /*  7 */
+    S=  U_SEGMENT_SEPARATOR,            /*  8 */
+    WS= U_WHITE_SPACE_NEUTRAL,          /*  9 */
+    ON= U_OTHER_NEUTRAL,                /* 10 */
+    LRE=U_LEFT_TO_RIGHT_EMBEDDING,      /* 11 */
+    LRO=U_LEFT_TO_RIGHT_OVERRIDE,       /* 12 */
+    AL= U_RIGHT_TO_LEFT_ARABIC,         /* 13 */
+    RLE=U_RIGHT_TO_LEFT_EMBEDDING,      /* 14 */
+    RLO=U_RIGHT_TO_LEFT_OVERRIDE,       /* 15 */
+    PDF=U_POP_DIRECTIONAL_FORMAT,       /* 16 */
+    NSM=U_DIR_NON_SPACING_MARK,         /* 17 */
+    BN= U_BOUNDARY_NEUTRAL,             /* 18 */
+    FSI=U_FIRST_STRONG_ISOLATE,         /* 19 */
+    LRI=U_LEFT_TO_RIGHT_ISOLATE,        /* 20 */
+    RLI=U_RIGHT_TO_LEFT_ISOLATE,        /* 21 */
+    PDI=U_POP_DIRECTIONAL_ISOLATE,      /* 22 */
+    ENL,    /* EN after W7 */           /* 23 */
+    ENR,    /* EN not subject to W7 */  /* 24 */
+    dirPropCount
+};
+
+/*  Sometimes, bit values are more appropriate
+    to deal with directionality properties.
+    Abbreviations in these macro names refer to names
+    used in the BiDi algorithm.
+*/
+#define DIRPROP_FLAG(dir) (1UL<<(dir))
+#define PURE_DIRPROP(prop)  ((prop)&~0xE0)    ?????????????????????????
+
+/* special flag for multiple runs from explicit embedding codes */
+#define DIRPROP_FLAG_MULTI_RUNS (1UL<<31)
+
+/* are there any characters that are LTR or RTL? */
+#define MASK_LTR (DIRPROP_FLAG(L)|DIRPROP_FLAG(EN)|DIRPROP_FLAG(ENL)|DIRPROP_FLAG(ENR)|DIRPROP_FLAG(AN)|DIRPROP_FLAG(LRE)|DIRPROP_FLAG(LRO)|DIRPROP_FLAG(LRI))
+#define MASK_RTL (DIRPROP_FLAG(R)|DIRPROP_FLAG(AL)|DIRPROP_FLAG(RLE)|DIRPROP_FLAG(RLO)|DIRPROP_FLAG(RLI))
+#define MASK_R_AL (DIRPROP_FLAG(R)|DIRPROP_FLAG(AL))
+#define MASK_STRONG_EN_AN (DIRPROP_FLAG(L)|DIRPROP_FLAG(R)|DIRPROP_FLAG(AL)|DIRPROP_FLAG(EN)|DIRPROP_FLAG(AN))
+
+/* explicit embedding codes */
+#define MASK_EXPLICIT (DIRPROP_FLAG(LRE)|DIRPROP_FLAG(LRO)|DIRPROP_FLAG(RLE)|DIRPROP_FLAG(RLO)|DIRPROP_FLAG(PDF))
+
+/* explicit isolate codes */
+#define MASK_ISO (DIRPROP_FLAG(LRI)|DIRPROP_FLAG(RLI)|DIRPROP_FLAG(FSI)|DIRPROP_FLAG(PDI))
+
+#define MASK_BN_EXPLICIT (DIRPROP_FLAG(BN)|MASK_EXPLICIT)
+
+/* paragraph and segment separators */
+#define MASK_B_S (DIRPROP_FLAG(B)|DIRPROP_FLAG(S))
+
+/* all types that are counted as White Space or Neutral in some steps */
+#define MASK_WS (MASK_B_S|DIRPROP_FLAG(WS)|MASK_BN_EXPLICIT|MASK_ISO)
+
+/* types that are neutrals or could becomes neutrals in (Wn) */
+#define MASK_POSSIBLE_N (DIRPROP_FLAG(ON)|DIRPROP_FLAG(CS)|DIRPROP_FLAG(ES)|DIRPROP_FLAG(ET)|MASK_WS)
+
+/*
+ *  These types may be changed to "e",
+ *  the embedding type (L or R) of the run,
+ *  in the BiDi algorithm (N2)
+ */
+#define MASK_EMBEDDING (DIRPROP_FLAG(NSM)|MASK_POSSIBLE_N)
+
+/* the dirProp's L and R are defined to 0 and 1 values in UCharDirection */
+#define GET_LR_FROM_LEVEL(level) ((DirProp)((level)&1))
+
+#define IS_DEFAULT_LEVEL(level) ((level)>=0xfe)
+
+/*
+ *  The following bit is used for the directional isolate status.
+ *  Stack entries corresponding to isolate sequences are greater than ISOLATE.
+ */
+#define ISOLATE  0x0100
+
+U_CFUNC UBiDiLevel
+ubidi_getParaLevelAtIndex(const UBiDi *pBiDi, int32_t index);
+
+#define GET_PARALEVEL(ubidi, index) \
+            ((UBiDiLevel)(!(ubidi)->defaultParaLevel || (index)<(ubidi)->paras[0].limit ? \
+                         (ubidi)->paraLevel : ubidi_getParaLevelAtIndex((ubidi), (index))))
+
+/* number of paras entries allocated initially without malloc */
+#define SIMPLE_PARAS_COUNT      10
+/* number of isolate entries allocated initially without malloc */
+#define SIMPLE_ISOLATES_COUNT   5
+/* number of isolate run entries for paired brackets allocated initially without malloc */
+#define SIMPLE_OPENINGS_COUNT   20
+
+#define CR  0x000D
+#define LF  0x000A
+
+/* Run structure for reordering --------------------------------------------- */
+enum {
+    LRM_BEFORE=1,
+    LRM_AFTER=2,
+    RLM_BEFORE=4,
+    RLM_AFTER=8
+};
+
+typedef struct Para {
+    int32_t limit;
+    int32_t level;
+} Para;
+
+enum {                                  /* flags for Opening.flags */
+    FOUND_L=DIRPROP_FLAG(L),
+    FOUND_R=DIRPROP_FLAG(R)
+};
+
+typedef struct Opening {
+    int32_t position;                   /* position of opening bracket */
+    int32_t match;                      /* matching char or -position of closing bracket */
+    int32_t contextPos;                 /* position of last strong char found before opening */
+    uint16_t flags;                     /* bits for L or R/AL found within the pair */
+    UBiDiDirection contextDir;          /* L or R according to last strong char before opening */
+    uint8_t filler;                     /* to complete a nice multiple of 4 chars */
+} Opening;
+
+typedef struct IsoRun {
+    int32_t  contextPos;                /* position of char determining context */
+    uint16_t start;                     /* index of first opening entry for this run */
+    uint16_t limit;                     /* index after last opening entry for this run */
+    UBiDiLevel level;                   /* level of this run */
+    DirProp lastStrong;                 /* bidi class of last strong char found in this run */
+    DirProp lastBase;                   /* bidi class of last base char found in this run */
+    UBiDiDirection contextDir;          /* L or R to use as context for following openings */
+} IsoRun;
+
+typedef struct BracketData {
+    UBiDi   *pBiDi;
+    /* array of opening entries which should be enough in most cases; no malloc() */
+    Opening simpleOpenings[SIMPLE_OPENINGS_COUNT];
+    Opening *openings;                  /* pointer to current array of entries */
+    int32_t openingsCount;              /* number of allocated entries */
+    int32_t isoRunLast;                 /* index of last used entry */
+    /* array of nested isolated sequence entries; can never excess UBIDI_MAX_EXPLICIT_LEVEL
+       + 1 for index 0, + 1 for before the first isolated sequence */
+    IsoRun  isoRuns[UBIDI_MAX_EXPLICIT_LEVEL+2];
+    UBool isNumbersSpecial;             /* reordering mode for NUMBERS_SPECIAL */
+} BracketData;
+
+typedef struct Isolate {
+    int32_t startON;
+    int32_t start1;
+    int32_t state;
+    int16_t stateImp;
+} Isolate;
+
+typedef struct Run {
+    int32_t logicalStart,   /* first character of the run; b31 indicates even/odd level */
+            visualLimit,    /* last visual position of the run +1 */
+            insertRemove;   /* if >0, flags for inserting LRM/RLM before/after run,
+                               if <0, count of bidi controls within run            */
+} Run;
+
+/* in a Run, logicalStart will get this bit set if the run level is odd */
+#define INDEX_ODD_BIT (1UL<<31)
+
+#define MAKE_INDEX_ODD_PAIR(index, level) ((index)|((int32_t)(level)<<31))
+#define ADD_ODD_BIT_FROM_LEVEL(x, level)  ((x)|=((int32_t)(level)<<31))
+#define REMOVE_ODD_BIT(x)                 ((x)&=~INDEX_ODD_BIT)
+
+#define GET_INDEX(x)   ((x)&~INDEX_ODD_BIT)
+#define GET_ODD_BIT(x) ((uint32_t)(x)>>31)
+#define IS_ODD_RUN(x)  ((UBool)(((x)&INDEX_ODD_BIT)!=0))
+#define IS_EVEN_RUN(x) ((UBool)(((x)&INDEX_ODD_BIT)==0))
+
+U_CFUNC UBool
+ubidi_getRuns(UBiDi *pBiDi, UErrorCode *pErrorCode);
+
+/** BiDi control code points */
+enum {
+    ZWNJ_CHAR=0x200c,
+    ZWJ_CHAR,
+    LRM_CHAR,
+    RLM_CHAR,
+    LRE_CHAR=0x202a,
+    RLE_CHAR,
+    PDF_CHAR,
+    LRO_CHAR,
+    RLO_CHAR,
+    LRI_CHAR=0x2066,
+    RLI_CHAR,
+    FSI_CHAR,
+    PDI_CHAR
+};
+
+#define IS_BIDI_CONTROL_CHAR(c) (((uint32_t)(c)&0xfffffffc)==ZWNJ_CHAR || (uint32_t)((c)-LRE_CHAR)<5 || (uint32_t)((c)-LRI_CHAR)<4)
+
+/* InsertPoints structure for noting where to put BiDi marks ---------------- */
+
+typedef struct Point {
+    int32_t pos;            /* position in text */
+    int32_t flag;           /* flag for LRM/RLM, before/after */
+} Point;
+
+typedef struct InsertPoints {
+    int32_t capacity;       /* number of points allocated */
+    int32_t size;           /* number of points used */
+    int32_t confirmed;      /* number of points confirmed */
+    UErrorCode errorCode;   /* for eventual memory shortage */
+    Point *points;          /* pointer to array of points */
+} InsertPoints;
+
+
+/* UBiDi structure ----------------------------------------------------------- */
+
+struct UBiDi {
+    /* pointer to parent paragraph object (pointer to self if this object is
+     * a paragraph object); set to NULL in a newly opened object; set to a
+     * real value after a successful execution of ubidi_setPara or ubidi_setLine
+     */
+    const UBiDi * pParaBiDi;
+
+    /* alias pointer to the current text */
+    const UChar *text;
+
+    /* length of the current text */
+    int32_t originalLength;
+
+    /* if the UBIDI_OPTION_STREAMING option is set, this is the length
+     * of text actually processed by ubidi_setPara, which may be shorter than
+     * the original length.
+     * Otherwise, it is identical to the original length.
+     */
+    int32_t length;
+
+    /* if the UBIDI_OPTION_REMOVE_CONTROLS option is set, and/or
+     * marks are allowed to be inserted in one of the reordering mode, the
+     * length of the result string may be different from the processed length.
+     */
+    int32_t resultLength;
+
+    /* memory sizes in bytes */
+    int32_t dirPropsSize, levelsSize, openingsSize, parasSize, runsSize, isolatesSize;
+
+    /* allocated memory */
+    DirProp *dirPropsMemory;
+    UBiDiLevel *levelsMemory;
+    Opening *openingsMemory;
+    Para *parasMemory;
+    Run *runsMemory;
+    Isolate *isolatesMemory;
+
+    /* indicators for whether memory may be allocated after ubidi_open() */
+    UBool mayAllocateText, mayAllocateRuns;
+
+    /* arrays with one value per text-character */
+    DirProp *dirProps;
+    UBiDiLevel *levels;
+
+    /* are we performing an approximation of the "inverse BiDi" algorithm? */
+    UBool isInverse;
+
+    /* are we using the basic algorithm or its variation? */
+    UBiDiReorderingMode reorderingMode;
+
+    /* UBIDI_REORDER_xxx values must be ordered so that all the regular
+     * logical to visual modes come first, and all inverse BiDi modes
+     * come last.
+     */
+    #define UBIDI_REORDER_LAST_LOGICAL_TO_VISUAL    UBIDI_REORDER_NUMBERS_SPECIAL
+
+    /* bitmask for reordering options */
+    uint32_t reorderingOptions;
+
+    /* must block separators receive level 0? */
+    UBool orderParagraphsLTR;
+
+    /* the paragraph level */
+    UBiDiLevel paraLevel;
+    /* original paraLevel when contextual */
+    /* must be one of UBIDI_DEFAULT_xxx or 0 if not contextual */
+    UBiDiLevel defaultParaLevel;
+
+    /* context data */
+    const UChar *prologue;
+    int32_t proLength;
+    const UChar *epilogue;
+    int32_t epiLength;
+
+    /* the following is set in ubidi_setPara, used in processPropertySeq */
+    const struct ImpTabPair * pImpTabPair;  /* pointer to levels state table pair */
+
+    /* the overall paragraph or line directionality - see UBiDiDirection */
+    UBiDiDirection direction;
+
+    /* flags is a bit set for which directional properties are in the text */
+    Flags flags;
+
+    /* lastArabicPos is index to the last AL in the text, -1 if none */
+    int32_t lastArabicPos;
+
+    /* characters after trailingWSStart are WS and are */
+    /* implicitly at the paraLevel (rule (L1)) - levels may not reflect that */
+    int32_t trailingWSStart;
+
+    /* fields for paragraph handling */
+    int32_t paraCount;                  /* set in getDirProps() */
+    /* filled in getDirProps() */
+    Para *paras;
+
+    /* for relatively short text, we only need a tiny array of paras (no malloc()) */
+    Para simpleParas[SIMPLE_PARAS_COUNT];
+
+    /* fields for line reordering */
+    int32_t runCount;     /* ==-1: runs not set up yet */
+    Run *runs;
+
+    /* for non-mixed text, we only need a tiny array of runs (no malloc()) */
+    Run simpleRuns[1];
+
+    /* maximum or current nesting depth of isolate sequences */
+    /* Within resolveExplicitLevels() and checkExplicitLevels(), this is the maximal
+       nesting encountered.
+       Within resolveImplicitLevels(), this is the index of the current isolates
+       stack entry. */
+    int32_t isolateCount;
+    Isolate *isolates;
+
+    /* for simple text, have a small stack (no malloc()) */
+    Isolate simpleIsolates[SIMPLE_ISOLATES_COUNT];
+
+    /* for inverse Bidi with insertion of directional marks */
+    InsertPoints insertPoints;
+
+    /* for option UBIDI_OPTION_REMOVE_CONTROLS */
+    int32_t controlCount;
+
+    /* for Bidi class callback */
+    UBiDiClassCallback *fnClassCallback;    /* action pointer */
+    const void *coClassCallback;            /* context pointer */
+};
+
+#define IS_VALID_PARA(x) ((x) && ((x)->pParaBiDi==(x)))
+#define IS_VALID_PARA_OR_LINE(x) ((x) && ((x)->pParaBiDi==(x) || (((x)->pParaBiDi) && (x)->pParaBiDi->pParaBiDi==(x)->pParaBiDi)))
+
+typedef union {
+    DirProp *dirPropsMemory;
+    UBiDiLevel *levelsMemory;
+    Opening *openingsMemory;
+    Para *parasMemory;
+    Run *runsMemory;
+    Isolate *isolatesMemory;
+} BidiMemoryForAllocation;
+
+/* Macros for initial checks at function entry */
+#define RETURN_IF_NULL_OR_FAILING_ERRCODE(pErrcode, retvalue)   \
+        if((pErrcode)==NULL || U_FAILURE(*pErrcode)) return retvalue
+#define RETURN_IF_NOT_VALID_PARA(bidi, errcode, retvalue)   \
+        if(!IS_VALID_PARA(bidi)) {  \
+            errcode=U_INVALID_STATE_ERROR;  \
+            return retvalue;                \
+        }
+#define RETURN_IF_NOT_VALID_PARA_OR_LINE(bidi, errcode, retvalue)   \
+        if(!IS_VALID_PARA_OR_LINE(bidi)) {  \
+            errcode=U_INVALID_STATE_ERROR;  \
+            return retvalue;                \
+        }
+#define RETURN_IF_BAD_RANGE(arg, start, limit, errcode, retvalue)   \
+        if((arg)<(start) || (arg)>=(limit)) {       \
+            (errcode)=U_ILLEGAL_ARGUMENT_ERROR;     \
+            return retvalue;                        \
+        }
+
+#define RETURN_VOID_IF_NULL_OR_FAILING_ERRCODE(pErrcode)   \
+        if((pErrcode)==NULL || U_FAILURE(*pErrcode)) return
+#define RETURN_VOID_IF_NOT_VALID_PARA(bidi, errcode)   \
+        if(!IS_VALID_PARA(bidi)) {  \
+            errcode=U_INVALID_STATE_ERROR;  \
+            return;                \
+        }
+#define RETURN_VOID_IF_NOT_VALID_PARA_OR_LINE(bidi, errcode)   \
+        if(!IS_VALID_PARA_OR_LINE(bidi)) {  \
+            errcode=U_INVALID_STATE_ERROR;  \
+            return;                \
+        }
+#define RETURN_VOID_IF_BAD_RANGE(arg, start, limit, errcode)   \
+        if((arg)<(start) || (arg)>=(limit)) {       \
+            (errcode)=U_ILLEGAL_ARGUMENT_ERROR;     \
+            return;                        \
+        }
+
+/* helper function to (re)allocate memory if allowed */
+U_CFUNC UBool
+ubidi_getMemory(BidiMemoryForAllocation *pMemory, int32_t *pSize, UBool mayAllocate, int32_t sizeNeeded);
+
+/* helper macros for each allocated array in UBiDi */
+#define getDirPropsMemory(pBiDi, length) \
+        ubidi_getMemory((BidiMemoryForAllocation *)&(pBiDi)->dirPropsMemory, &(pBiDi)->dirPropsSize, \
+                        (pBiDi)->mayAllocateText, (length))
+
+#define getLevelsMemory(pBiDi, length) \
+        ubidi_getMemory((BidiMemoryForAllocation *)&(pBiDi)->levelsMemory, &(pBiDi)->levelsSize, \
+                        (pBiDi)->mayAllocateText, (length))
+
+#define getRunsMemory(pBiDi, length) \
+        ubidi_getMemory((BidiMemoryForAllocation *)&(pBiDi)->runsMemory, &(pBiDi)->runsSize, \
+                        (pBiDi)->mayAllocateRuns, (length)*sizeof(Run))
+
+/* additional macros used by ubidi_open() - always allow allocation */
+#define getInitialDirPropsMemory(pBiDi, length) \
+        ubidi_getMemory((BidiMemoryForAllocation *)&(pBiDi)->dirPropsMemory, &(pBiDi)->dirPropsSize, \
+                        TRUE, (length))
+
+#define getInitialLevelsMemory(pBiDi, length) \
+        ubidi_getMemory((BidiMemoryForAllocation *)&(pBiDi)->levelsMemory, &(pBiDi)->levelsSize, \
+                        TRUE, (length))
+
+#define getInitialOpeningsMemory(pBiDi, length) \
+        ubidi_getMemory((BidiMemoryForAllocation *)&(pBiDi)->openingsMemory, &(pBiDi)->openingsSize, \
+                        TRUE, (length)*sizeof(Opening))
+
+#define getInitialParasMemory(pBiDi, length) \
+        ubidi_getMemory((BidiMemoryForAllocation *)&(pBiDi)->parasMemory, &(pBiDi)->parasSize, \
+                        TRUE, (length)*sizeof(Para))
+
+#define getInitialRunsMemory(pBiDi, length) \
+        ubidi_getMemory((BidiMemoryForAllocation *)&(pBiDi)->runsMemory, &(pBiDi)->runsSize, \
+                        TRUE, (length)*sizeof(Run))
+
+#define getInitialIsolatesMemory(pBiDi, length) \
+        ubidi_getMemory((BidiMemoryForAllocation *)&(pBiDi)->isolatesMemory, &(pBiDi)->isolatesSize, \
+                        TRUE, (length)*sizeof(Isolate))
+
+#endif
diff --git a/vendor/icu/src/ubidiln.cpp b/vendor/icu/src/ubidiln.cpp
new file mode 100644
index 0000000000..fd7072d950
--- /dev/null
+++ b/vendor/icu/src/ubidiln.cpp
@@ -0,0 +1,1349 @@
+// © 2016 and later: Unicode, Inc. and others.
+// License & terms of use: http://www.unicode.org/copyright.html
+/*
+******************************************************************************
+*
+*   Copyright (C) 1999-2015, International Business Machines
+*   Corporation and others.  All Rights Reserved.
+*
+******************************************************************************
+*   file name:  ubidiln.c
+*   encoding:   UTF-8
+*   tab size:   8 (not used)
+*   indentation:4
+*
+*   created on: 1999aug06
+*   created by: Markus W. Scherer, updated by Matitiahu Allouche
+*/
+
+#include "cmemory.h"
+#include <unicode/utypes.h>
+#include <unicode/ustring.h>
+#include <unicode/uchar.h>
+#include <unicode/ubidi.h>
+#include "ubidiimp.h"
+#include "uassert.h"
+
+/*
+ * General remarks about the functions in this file:
+ *
+ * These functions deal with the aspects of potentially mixed-directional
+ * text in a single paragraph or in a line of a single paragraph
+ * which has already been processed according to
+ * the Unicode 6.3 BiDi algorithm as defined in
+ * http://www.unicode.org/unicode/reports/tr9/ , version 28,
+ * also described in The Unicode Standard, Version 6.3.0 .
+ *
+ * This means that there is a UBiDi object with a levels
+ * and a dirProps array.
+ * paraLevel and direction are also set.
+ * Only if the length of the text is zero, then levels==dirProps==NULL.
+ *
+ * The overall directionality of the paragraph
+ * or line is used to bypass the reordering steps if possible.
+ * Even purely RTL text does not need reordering there because
+ * the ubidi_getLogical/VisualIndex() functions can compute the
+ * index on the fly in such a case.
+ *
+ * The implementation of the access to same-level-runs and of the reordering
+ * do attempt to provide better performance and less memory usage compared to
+ * a direct implementation of especially rule (L2) with an array of
+ * one (32-bit) integer per text character.
+ *
+ * Here, the levels array is scanned as soon as necessary, and a vector of
+ * same-level-runs is created. Reordering then is done on this vector.
+ * For each run of text positions that were resolved to the same level,
+ * only 8 bytes are stored: the first text position of the run and the visual
+ * position behind the run after reordering.
+ * One sign bit is used to hold the directionality of the run.
+ * This is inefficient if there are many very short runs. If the average run
+ * length is <2, then this uses more memory.
+ *
+ * In a further attempt to save memory, the levels array is never changed
+ * after all the resolution rules (Xn, Wn, Nn, In).
+ * Many functions have to consider the field trailingWSStart:
+ * if it is less than length, then there is an implicit trailing run
+ * at the paraLevel,
+ * which is not reflected in the levels array.
+ * This allows a line UBiDi object to use the same levels array as
+ * its paragraph parent object.
+ *
+ * When a UBiDi object is created for a line of a paragraph, then the
+ * paragraph's levels and dirProps arrays are reused by way of setting
+ * a pointer into them, not by copying. This again saves memory and forbids to
+ * change the now shared levels for (L1).
+ */
+
+/* handle trailing WS (L1) -------------------------------------------------- */
+
+/*
+ * setTrailingWSStart() sets the start index for a trailing
+ * run of WS in the line. This is necessary because we do not modify
+ * the paragraph's levels array that we just point into.
+ * Using trailingWSStart is another form of performing (L1).
+ *
+ * To make subsequent operations easier, we also include the run
+ * before the WS if it is at the paraLevel - we merge the two here.
+ *
+ * This function is called only from ubidi_setLine(), so pBiDi->paraLevel is
+ * set correctly for the line even when contextual multiple paragraphs.
+ */
+static void
+setTrailingWSStart(UBiDi *pBiDi) {
+    /* pBiDi->direction!=UBIDI_MIXED */
+
+    const DirProp *dirProps=pBiDi->dirProps;
+    UBiDiLevel *levels=pBiDi->levels;
+    int32_t start=pBiDi->length;
+    UBiDiLevel paraLevel=pBiDi->paraLevel;
+
+    /* If the line is terminated by a block separator, all preceding WS etc...
+       are already set to paragraph level.
+       Setting trailingWSStart to pBidi->length will avoid changing the
+       level of B chars from 0 to paraLevel in ubidi_getLevels when
+       orderParagraphsLTR==TRUE.
+     */
+    if(dirProps[start-1]==B) {
+        pBiDi->trailingWSStart=start;   /* currently == pBiDi->length */
+        return;
+    }
+    /* go backwards across all WS, BN, explicit codes */
+    while(start>0 && DIRPROP_FLAG(dirProps[start-1])&MASK_WS) {
+        --start;
+    }
+
+    /* if the WS run can be merged with the previous run then do so here */
+    while(start>0 && levels[start-1]==paraLevel) {
+        --start;
+    }
+
+    pBiDi->trailingWSStart=start;
+}
+
+/* ubidi_setLine ------------------------------------------------------------ */
+
+U_CAPI void U_EXPORT2
+ubidi_setLine(const UBiDi *pParaBiDi,
+              int32_t start, int32_t limit,
+              UBiDi *pLineBiDi,
+              UErrorCode *pErrorCode) {
+    int32_t length;
+
+    /* check the argument values */
+    RETURN_VOID_IF_NULL_OR_FAILING_ERRCODE(pErrorCode);
+    RETURN_VOID_IF_NOT_VALID_PARA(pParaBiDi, *pErrorCode);
+    RETURN_VOID_IF_BAD_RANGE(start, 0, limit, *pErrorCode);
+    RETURN_VOID_IF_BAD_RANGE(limit, 0, pParaBiDi->length+1, *pErrorCode);
+    if(pLineBiDi==NULL) {
+        *pErrorCode=U_ILLEGAL_ARGUMENT_ERROR;
+        return;
+    }
+    if(ubidi_getParagraph(pParaBiDi, start, NULL, NULL, NULL, pErrorCode) !=
+       ubidi_getParagraph(pParaBiDi, limit-1, NULL, NULL, NULL, pErrorCode)) {
+        /* the line crosses a paragraph boundary */
+        *pErrorCode=U_ILLEGAL_ARGUMENT_ERROR;
+        return;
+    }
+
+    /* set the values in pLineBiDi from its pParaBiDi parent */
+    pLineBiDi->pParaBiDi=NULL;          /* mark unfinished setLine */
+    pLineBiDi->text=pParaBiDi->text+start;
+    length=pLineBiDi->length=limit-start;
+    pLineBiDi->resultLength=pLineBiDi->originalLength=length;
+    pLineBiDi->paraLevel=GET_PARALEVEL(pParaBiDi, start);
+    pLineBiDi->paraCount=pParaBiDi->paraCount;
+    pLineBiDi->runs=NULL;
+    pLineBiDi->flags=0;
+    pLineBiDi->reorderingMode=pParaBiDi->reorderingMode;
+    pLineBiDi->reorderingOptions=pParaBiDi->reorderingOptions;
+    pLineBiDi->controlCount=0;
+    if(pParaBiDi->controlCount>0) {
+        int32_t j;
+        for(j=start; j<limit; j++) {
+            if(IS_BIDI_CONTROL_CHAR(pParaBiDi->text[j])) {
+                pLineBiDi->controlCount++;
+            }
+        }
+        pLineBiDi->resultLength-=pLineBiDi->controlCount;
+    }
+
+    pLineBiDi->dirProps=pParaBiDi->dirProps+start;
+    pLineBiDi->levels=pParaBiDi->levels+start;
+    pLineBiDi->runCount=-1;
+
+    if(pParaBiDi->direction!=UBIDI_MIXED) {
+        /* the parent is already trivial */
+        pLineBiDi->direction=pParaBiDi->direction;
+
+        /*
+         * The parent's levels are all either
+         * implicitly or explicitly ==paraLevel;
+         * do the same here.
+         */
+        if(pParaBiDi->trailingWSStart<=start) {
+            pLineBiDi->trailingWSStart=0;
+        } else if(pParaBiDi->trailingWSStart<limit) {
+            pLineBiDi->trailingWSStart=pParaBiDi->trailingWSStart-start;
+        } else {
+            pLineBiDi->trailingWSStart=length;
+        }
+    } else {
+        const UBiDiLevel *levels=pLineBiDi->levels;
+        int32_t i, trailingWSStart;
+        UBiDiLevel level;
+
+        setTrailingWSStart(pLineBiDi);
+        trailingWSStart=pLineBiDi->trailingWSStart;
+
+        /* recalculate pLineBiDi->direction */
+        if(trailingWSStart==0) {
+            /* all levels are at paraLevel */
+            pLineBiDi->direction=(UBiDiDirection)(pLineBiDi->paraLevel&1);
+        } else {
+            /* get the level of the first character */
+            level=(UBiDiLevel)(levels[0]&1);
+
+            /* if there is anything of a different level, then the line is mixed */
+            if(trailingWSStart<length && (pLineBiDi->paraLevel&1)!=level) {
+                /* the trailing WS is at paraLevel, which differs from levels[0] */
+                pLineBiDi->direction=UBIDI_MIXED;
+            } else {
+                /* see if levels[1..trailingWSStart-1] have the same direction as levels[0] and paraLevel */
+                i=1;
+                for(;;) {
+                    if(i==trailingWSStart) {
+                        /* the direction values match those in level */
+                        pLineBiDi->direction=(UBiDiDirection)level;
+                        break;
+                    } else if((levels[i]&1)!=level) {
+                        pLineBiDi->direction=UBIDI_MIXED;
+                        break;
+                    }
+                    ++i;
+                }
+            }
+        }
+
+        switch(pLineBiDi->direction) {
+        case UBIDI_LTR:
+            /* make sure paraLevel is even */
+            pLineBiDi->paraLevel=(UBiDiLevel)((pLineBiDi->paraLevel+1)&~1);
+
+            /* all levels are implicitly at paraLevel (important for ubidi_getLevels()) */
+            pLineBiDi->trailingWSStart=0;
+            break;
+        case UBIDI_RTL:
+            /* make sure paraLevel is odd */
+            pLineBiDi->paraLevel|=1;
+
+            /* all levels are implicitly at paraLevel (important for ubidi_getLevels()) */
+            pLineBiDi->trailingWSStart=0;
+            break;
+        default:
+            break;
+        }
+    }
+    pLineBiDi->pParaBiDi=pParaBiDi;     /* mark successful setLine */
+    return;
+}
+
+U_CAPI UBiDiLevel U_EXPORT2
+ubidi_getLevelAt(const UBiDi *pBiDi, int32_t charIndex) {
+    /* return paraLevel if in the trailing WS run, otherwise the real level */
+    if(!IS_VALID_PARA_OR_LINE(pBiDi) || charIndex<0 || pBiDi->length<=charIndex) {
+        return 0;
+    } else if(pBiDi->direction!=UBIDI_MIXED || charIndex>=pBiDi->trailingWSStart) {
+        return GET_PARALEVEL(pBiDi, charIndex);
+    } else {
+        return pBiDi->levels[charIndex];
+    }
+}
+
+U_CAPI const UBiDiLevel * U_EXPORT2
+ubidi_getLevels(UBiDi *pBiDi, UErrorCode *pErrorCode) {
+    int32_t start, length;
+
+    RETURN_IF_NULL_OR_FAILING_ERRCODE(pErrorCode, NULL);
+    RETURN_IF_NOT_VALID_PARA_OR_LINE(pBiDi, *pErrorCode, NULL);
+    if((length=pBiDi->length)<=0) {
+        *pErrorCode=U_ILLEGAL_ARGUMENT_ERROR;
+        return NULL;
+    }
+    if((start=pBiDi->trailingWSStart)==length) {
+        /* the current levels array reflects the WS run */
+        return pBiDi->levels;
+    }
+
+    /*
+     * After the previous if(), we know that the levels array
+     * has an implicit trailing WS run and therefore does not fully
+     * reflect itself all the levels.
+     * This must be a UBiDi object for a line, and
+     * we need to create a new levels array.
+     */
+    if(getLevelsMemory(pBiDi, length)) {
+        UBiDiLevel *levels=pBiDi->levelsMemory;
+
+        if(start>0 && levels!=pBiDi->levels) {
+            uprv_memcpy(levels, pBiDi->levels, start);
+        }
+        /* pBiDi->paraLevel is ok even if contextual multiple paragraphs,
+           since pBidi is a line object                                     */
+        uprv_memset(levels+start, pBiDi->paraLevel, length-start);
+
+        /* this new levels array is set for the line and reflects the WS run */
+        pBiDi->trailingWSStart=length;
+        return pBiDi->levels=levels;
+    } else {
+        /* out of memory */
+        *pErrorCode=U_MEMORY_ALLOCATION_ERROR;
+        return NULL;
+    }
+}
+
+U_CAPI void U_EXPORT2
+ubidi_getLogicalRun(const UBiDi *pBiDi, int32_t logicalPosition,
+                    int32_t *pLogicalLimit, UBiDiLevel *pLevel) {
+    UErrorCode errorCode;
+    int32_t runCount, visualStart, logicalLimit, logicalFirst, i;
+    Run iRun;
+
+    errorCode=U_ZERO_ERROR;
+    RETURN_VOID_IF_BAD_RANGE(logicalPosition, 0, pBiDi->length, errorCode);
+    /* ubidi_countRuns will check VALID_PARA_OR_LINE */
+    runCount=ubidi_countRuns((UBiDi *)pBiDi, &errorCode);
+    if(U_FAILURE(errorCode)) {
+        return;
+    }
+    /* this is done based on runs rather than on levels since levels have
+       a special interpretation when UBIDI_REORDER_RUNS_ONLY
+     */
+    visualStart=logicalLimit=0;
+    iRun=pBiDi->runs[0];
+
+    for(i=0; i<runCount; i++) {
+        iRun = pBiDi->runs[i];
+        logicalFirst=GET_INDEX(iRun.logicalStart);
+        logicalLimit=logicalFirst+iRun.visualLimit-visualStart;
+        if((logicalPosition>=logicalFirst) &&
+           (logicalPosition<logicalLimit)) {
+            break;
+        }
+        visualStart = iRun.visualLimit;
+    }
+    if(pLogicalLimit) {
+        *pLogicalLimit=logicalLimit;
+    }
+    if(pLevel) {
+        if(pBiDi->reorderingMode==UBIDI_REORDER_RUNS_ONLY) {
+            *pLevel=(UBiDiLevel)GET_ODD_BIT(iRun.logicalStart);
+        }
+        else if(pBiDi->direction!=UBIDI_MIXED || logicalPosition>=pBiDi->trailingWSStart) {
+            *pLevel=GET_PARALEVEL(pBiDi, logicalPosition);
+        } else {
+        *pLevel=pBiDi->levels[logicalPosition];
+        }
+    }
+}
+
+/* runs API functions ------------------------------------------------------- */
+
+U_CAPI int32_t U_EXPORT2
+ubidi_countRuns(UBiDi *pBiDi, UErrorCode *pErrorCode) {
+    RETURN_IF_NULL_OR_FAILING_ERRCODE(pErrorCode, -1);
+    RETURN_IF_NOT_VALID_PARA_OR_LINE(pBiDi, *pErrorCode, -1);
+    ubidi_getRuns(pBiDi, pErrorCode);
+    if(U_FAILURE(*pErrorCode)) {
+        return -1;
+    }
+    return pBiDi->runCount;
+}
+
+U_CAPI UBiDiDirection U_EXPORT2
+ubidi_getVisualRun(UBiDi *pBiDi, int32_t runIndex,
+                   int32_t *pLogicalStart, int32_t *pLength)
+{
+    int32_t start;
+    UErrorCode errorCode = U_ZERO_ERROR;
+    RETURN_IF_NOT_VALID_PARA_OR_LINE(pBiDi, errorCode, UBIDI_LTR);
+    ubidi_getRuns(pBiDi, &errorCode);
+    if(U_FAILURE(errorCode)) {
+        return UBIDI_LTR;
+    }
+    RETURN_IF_BAD_RANGE(runIndex, 0, pBiDi->runCount, errorCode, UBIDI_LTR);
+
+    start=pBiDi->runs[runIndex].logicalStart;
+    if(pLogicalStart!=NULL) {
+        *pLogicalStart=GET_INDEX(start);
+    }
+    if(pLength!=NULL) {
+        if(runIndex>0) {
+            *pLength=pBiDi->runs[runIndex].visualLimit-
+                     pBiDi->runs[runIndex-1].visualLimit;
+        } else {
+            *pLength=pBiDi->runs[0].visualLimit;
+        }
+    }
+    return (UBiDiDirection)GET_ODD_BIT(start);
+}
+
+/* in trivial cases there is only one trivial run; called by ubidi_getRuns() */
+static void
+getSingleRun(UBiDi *pBiDi, UBiDiLevel level) {
+    /* simple, single-run case */
+    pBiDi->runs=pBiDi->simpleRuns;
+    pBiDi->runCount=1;
+
+    /* fill and reorder the single run */
+    pBiDi->runs[0].logicalStart=MAKE_INDEX_ODD_PAIR(0, level);
+    pBiDi->runs[0].visualLimit=pBiDi->length;
+    pBiDi->runs[0].insertRemove=0;
+}
+
+/* reorder the runs array (L2) ---------------------------------------------- */
+
+/*
+ * Reorder the same-level runs in the runs array.
+ * Here, runCount>1 and maxLevel>=minLevel>=paraLevel.
+ * All the visualStart fields=logical start before reordering.
+ * The "odd" bits are not set yet.
+ *
+ * Reordering with this data structure lends itself to some handy shortcuts:
+ *
+ * Since each run is moved but not modified, and since at the initial maxLevel
+ * each sequence of same-level runs consists of only one run each, we
+ * don't need to do anything there and can predecrement maxLevel.
+ * In many simple cases, the reordering is thus done entirely in the
+ * index mapping.
+ * Also, reordering occurs only down to the lowest odd level that occurs,
+ * which is minLevel|1. However, if the lowest level itself is odd, then
+ * in the last reordering the sequence of the runs at this level or higher
+ * will be all runs, and we don't need the elaborate loop to search for them.
+ * This is covered by ++minLevel instead of minLevel|=1 followed
+ * by an extra reorder-all after the reorder-some loop.
+ * About a trailing WS run:
+ * Such a run would need special treatment because its level is not
+ * reflected in levels[] if this is not a paragraph object.
+ * Instead, all characters from trailingWSStart on are implicitly at
+ * paraLevel.
+ * However, for all maxLevel>paraLevel, this run will never be reordered
+ * and does not need to be taken into account. maxLevel==paraLevel is only reordered
+ * if minLevel==paraLevel is odd, which is done in the extra segment.
+ * This means that for the main reordering loop we don't need to consider
+ * this run and can --runCount. If it is later part of the all-runs
+ * reordering, then runCount is adjusted accordingly.
+ */
+static void
+reorderLine(UBiDi *pBiDi, UBiDiLevel minLevel, UBiDiLevel maxLevel) {
+    Run *runs, tempRun;
+    UBiDiLevel *levels;
+    int32_t firstRun, endRun, limitRun, runCount;
+
+    /* nothing to do? */
+    if(maxLevel<=(minLevel|1)) {
+        return;
+    }
+
+    /*
+     * Reorder only down to the lowest odd level
+     * and reorder at an odd minLevel in a separate, simpler loop.
+     * See comments above for why minLevel is always incremented.
+     */
+    ++minLevel;
+
+    runs=pBiDi->runs;
+    levels=pBiDi->levels;
+    runCount=pBiDi->runCount;
+
+    /* do not include the WS run at paraLevel<=old minLevel except in the simple loop */
+    if(pBiDi->trailingWSStart<pBiDi->length) {
+        --runCount;
+    }
+
+    while(--maxLevel>=minLevel) {
+        firstRun=0;
+
+        /* loop for all sequences of runs */
+        for(;;) {
+            /* look for a sequence of runs that are all at >=maxLevel */
+            /* look for the first run of such a sequence */
+            while(firstRun<runCount && levels[runs[firstRun].logicalStart]<maxLevel) {
+                ++firstRun;
+            }
+            if(firstRun>=runCount) {
+                break;  /* no more such runs */
+            }
+
+            /* look for the limit run of such a sequence (the run behind it) */
+            for(limitRun=firstRun; ++limitRun<runCount && levels[runs[limitRun].logicalStart]>=maxLevel;) {}
+
+            /* Swap the entire sequence of runs from firstRun to limitRun-1. */
+            endRun=limitRun-1;
+            while(firstRun<endRun) {
+                tempRun = runs[firstRun];
+                runs[firstRun]=runs[endRun];
+                runs[endRun]=tempRun;
+                ++firstRun;
+                --endRun;
+            }
+
+            if(limitRun==runCount) {
+                break;  /* no more such runs */
+            } else {
+                firstRun=limitRun+1;
+            }
+        }
+    }
+
+    /* now do maxLevel==old minLevel (==odd!), see above */
+    if(!(minLevel&1)) {
+        firstRun=0;
+
+        /* include the trailing WS run in this complete reordering */
+        if(pBiDi->trailingWSStart==pBiDi->length) {
+            --runCount;
+        }
+
+        /* Swap the entire sequence of all runs. (endRun==runCount) */
+        while(firstRun<runCount) {
+            tempRun=runs[firstRun];
+            runs[firstRun]=runs[runCount];
+            runs[runCount]=tempRun;
+            ++firstRun;
+            --runCount;
+        }
+    }
+}
+
+/* compute the runs array --------------------------------------------------- */
+
+static int32_t getRunFromLogicalIndex(UBiDi *pBiDi, int32_t logicalIndex, UErrorCode *pErrorCode) {
+    Run *runs=pBiDi->runs;
+    int32_t runCount=pBiDi->runCount, visualStart=0, i, length, logicalStart;
+
+    for(i=0; i<runCount; i++) {
+        length=runs[i].visualLimit-visualStart;
+        logicalStart=GET_INDEX(runs[i].logicalStart);
+        if((logicalIndex>=logicalStart) && (logicalIndex<(logicalStart+length))) {
+            return i;
+        }
+        visualStart+=length;
+    }
+    /* we should never get here */
+    U_ASSERT(FALSE);
+    *pErrorCode = U_INVALID_STATE_ERROR;
+    return 0;
+}
+
+/*
+ * Compute the runs array from the levels array.
+ * After ubidi_getRuns() returns TRUE, runCount is guaranteed to be >0
+ * and the runs are reordered.
+ * Odd-level runs have visualStart on their visual right edge and
+ * they progress visually to the left.
+ * If option UBIDI_OPTION_INSERT_MARKS is set, insertRemove will contain the
+ * sum of appropriate LRM/RLM_BEFORE/AFTER flags.
+ * If option UBIDI_OPTION_REMOVE_CONTROLS is set, insertRemove will contain the
+ * negative number of BiDi control characters within this run.
+ */
+U_CFUNC UBool
+ubidi_getRuns(UBiDi *pBiDi, UErrorCode *pErrorCode) {
+    /*
+     * This method returns immediately if the runs are already set. This
+     * includes the case of length==0 (handled in setPara)..
+     */
+    if (pBiDi->runCount>=0) {
+        return TRUE;
+    }
+
+    if(pBiDi->direction!=UBIDI_MIXED) {
+        /* simple, single-run case - this covers length==0 */
+        /* pBiDi->paraLevel is ok even for contextual multiple paragraphs */
+        getSingleRun(pBiDi, pBiDi->paraLevel);
+    } else /* UBIDI_MIXED, length>0 */ {
+        /* mixed directionality */
+        int32_t length=pBiDi->length, limit;
+        UBiDiLevel *levels=pBiDi->levels;
+        int32_t i, runCount;
+        UBiDiLevel level=UBIDI_DEFAULT_LTR;   /* initialize with no valid level */
+        /*
+         * If there are WS characters at the end of the line
+         * and the run preceding them has a level different from
+         * paraLevel, then they will form their own run at paraLevel (L1).
+         * Count them separately.
+         * We need some special treatment for this in order to not
+         * modify the levels array which a line UBiDi object shares
+         * with its paragraph parent and its other line siblings.
+         * In other words, for the trailing WS, it may be
+         * levels[]!=paraLevel but we have to treat it like it were so.
+         */
+        limit=pBiDi->trailingWSStart;
+        /* count the runs, there is at least one non-WS run, and limit>0 */
+        runCount=0;
+        for(i=0; i<limit; ++i) {
+            /* increment runCount at the start of each run */
+            if(levels[i]!=level) {
+                ++runCount;
+                level=levels[i];
+            }
+        }
+
+        /*
+         * We don't need to see if the last run can be merged with a trailing
+         * WS run because setTrailingWSStart() would have done that.
+         */
+        if(runCount==1 && limit==length) {
+            /* There is only one non-WS run and no trailing WS-run. */
+            getSingleRun(pBiDi, levels[0]);
+        } else /* runCount>1 || limit<length */ {
+            /* allocate and set the runs */
+            Run *runs;
+            int32_t runIndex, start;
+            UBiDiLevel minLevel=UBIDI_MAX_EXPLICIT_LEVEL+1, maxLevel=0;
+
+            /* now, count a (non-mergeable) WS run */
+            if(limit<length) {
+                ++runCount;
+            }
+
+            /* runCount>1 */
+            if(getRunsMemory(pBiDi, runCount)) {
+                runs=pBiDi->runsMemory;
+            } else {
+                return FALSE;
+            }
+
+            /* set the runs */
+            /* FOOD FOR THOUGHT: this could be optimized, e.g.:
+             * 464->444, 484->444, 575->555, 595->555
+             * However, that would take longer. Check also how it would
+             * interact with BiDi control removal and inserting Marks.
+             */
+            runIndex=0;
+
+            /* search for the run limits and initialize visualLimit values with the run lengths */
+            i=0;
+            do {
+                /* prepare this run */
+                start=i;
+                level=levels[i];
+                if(level<minLevel) {
+                    minLevel=level;
+                }
+                if(level>maxLevel) {
+                    maxLevel=level;
+                }
+
+                /* look for the run limit */
+                while(++i<limit && levels[i]==level) {}
+
+                /* i is another run limit */
+                runs[runIndex].logicalStart=start;
+                runs[runIndex].visualLimit=i-start;
+                runs[runIndex].insertRemove=0;
+                ++runIndex;
+            } while(i<limit);
+
+            if(limit<length) {
+                /* there is a separate WS run */
+                runs[runIndex].logicalStart=limit;
+                runs[runIndex].visualLimit=length-limit;
+                /* For the trailing WS run, pBiDi->paraLevel is ok even
+                   if contextual multiple paragraphs.                   */
+                if(pBiDi->paraLevel<minLevel) {
+                    minLevel=pBiDi->paraLevel;
+                }
+            }
+
+            /* set the object fields */
+            pBiDi->runs=runs;
+            pBiDi->runCount=runCount;
+
+            reorderLine(pBiDi, minLevel, maxLevel);
+
+            /* now add the direction flags and adjust the visualLimit's to be just that */
+            /* this loop will also handle the trailing WS run */
+            limit=0;
+            for(i=0; i<runCount; ++i) {
+                ADD_ODD_BIT_FROM_LEVEL(runs[i].logicalStart, levels[runs[i].logicalStart]);
+                limit+=runs[i].visualLimit;
+                runs[i].visualLimit=limit;
+            }
+
+            /* Set the "odd" bit for the trailing WS run. */
+            /* For a RTL paragraph, it will be the *first* run in visual order. */
+            /* For the trailing WS run, pBiDi->paraLevel is ok even if
+               contextual multiple paragraphs.                          */
+            if(runIndex<runCount) {
+                int32_t trailingRun = ((pBiDi->paraLevel & 1) != 0)? 0 : runIndex;
+
+                ADD_ODD_BIT_FROM_LEVEL(runs[trailingRun].logicalStart, pBiDi->paraLevel);
+            }
+        }
+    }
+
+    /* handle insert LRM/RLM BEFORE/AFTER run */
+    if(pBiDi->insertPoints.size>0) {
+        Point *point, *start=pBiDi->insertPoints.points,
+                      *limit=start+pBiDi->insertPoints.size;
+        int32_t runIndex;
+        for(point=start; point<limit; point++) {
+            runIndex=getRunFromLogicalIndex(pBiDi, point->pos, pErrorCode);
+            pBiDi->runs[runIndex].insertRemove|=point->flag;
+        }
+    }
+
+    /* handle remove BiDi control characters */
+    if(pBiDi->controlCount>0) {
+        int32_t runIndex;
+        const UChar *start=pBiDi->text, *limit=start+pBiDi->length, *pu;
+        for(pu=start; pu<limit; pu++) {
+            if(IS_BIDI_CONTROL_CHAR(*pu)) {
+                runIndex=getRunFromLogicalIndex(pBiDi, (int32_t)(pu-start), pErrorCode);
+                pBiDi->runs[runIndex].insertRemove--;
+            }
+        }
+    }
+
+    return TRUE;
+}
+
+static UBool
+prepareReorder(const UBiDiLevel *levels, int32_t length,
+               int32_t *indexMap,
+               UBiDiLevel *pMinLevel, UBiDiLevel *pMaxLevel) {
+    int32_t start;
+    UBiDiLevel level, minLevel, maxLevel;
+
+    if(levels==NULL || length<=0) {
+        return FALSE;
+    }
+
+    /* determine minLevel and maxLevel */
+    minLevel=UBIDI_MAX_EXPLICIT_LEVEL+1;
+    maxLevel=0;
+    for(start=length; start>0;) {
+        level=levels[--start];
+        if(level>UBIDI_MAX_EXPLICIT_LEVEL+1) {
+            return FALSE;
+        }
+        if(level<minLevel) {
+            minLevel=level;
+        }
+        if(level>maxLevel) {
+            maxLevel=level;
+        }
+    }
+    *pMinLevel=minLevel;
+    *pMaxLevel=maxLevel;
+
+    /* initialize the index map */
+    for(start=length; start>0;) {
+        --start;
+        indexMap[start]=start;
+    }
+
+    return TRUE;
+}
+
+/* reorder a line based on a levels array (L2) ------------------------------ */
+
+U_CAPI void U_EXPORT2
+ubidi_reorderLogical(const UBiDiLevel *levels, int32_t length, int32_t *indexMap) {
+    int32_t start, limit, sumOfSosEos;
+    UBiDiLevel minLevel = 0, maxLevel = 0;
+
+    if(indexMap==NULL || !prepareReorder(levels, length, indexMap, &minLevel, &maxLevel)) {
+        return;
+    }
+
+    /* nothing to do? */
+    if(minLevel==maxLevel && (minLevel&1)==0) {
+        return;
+    }
+
+    /* reorder only down to the lowest odd level */
+    minLevel|=1;
+
+    /* loop maxLevel..minLevel */
+    do {
+        start=0;
+
+        /* loop for all sequences of levels to reorder at the current maxLevel */
+        for(;;) {
+            /* look for a sequence of levels that are all at >=maxLevel */
+            /* look for the first index of such a sequence */
+            while(start<length && levels[start]<maxLevel) {
+                ++start;
+            }
+            if(start>=length) {
+                break;  /* no more such sequences */
+            }
+
+            /* look for the limit of such a sequence (the index behind it) */
+            for(limit=start; ++limit<length && levels[limit]>=maxLevel;) {}
+
+            /*
+             * sos=start of sequence, eos=end of sequence
+             *
+             * The closed (inclusive) interval from sos to eos includes all the logical
+             * and visual indexes within this sequence. They are logically and
+             * visually contiguous and in the same range.
+             *
+             * For each run, the new visual index=sos+eos-old visual index;
+             * we pre-add sos+eos into sumOfSosEos ->
+             * new visual index=sumOfSosEos-old visual index;
+             */
+            sumOfSosEos=start+limit-1;
+
+            /* reorder each index in the sequence */
+            do {
+                indexMap[start]=sumOfSosEos-indexMap[start];
+            } while(++start<limit);
+
+            /* start==limit */
+            if(limit==length) {
+                break;  /* no more such sequences */
+            } else {
+                start=limit+1;
+            }
+        }
+    } while(--maxLevel>=minLevel);
+}
+
+U_CAPI void U_EXPORT2
+ubidi_reorderVisual(const UBiDiLevel *levels, int32_t length, int32_t *indexMap) {
+    int32_t start, end, limit, temp;
+    UBiDiLevel minLevel = 0, maxLevel = 0;
+
+    if(indexMap==NULL || !prepareReorder(levels, length, indexMap, &minLevel, &maxLevel)) {
+        return;
+    }
+
+    /* nothing to do? */
+    if(minLevel==maxLevel && (minLevel&1)==0) {
+        return;
+    }
+
+    /* reorder only down to the lowest odd level */
+    minLevel|=1;
+
+    /* loop maxLevel..minLevel */
+    do {
+        start=0;
+
+        /* loop for all sequences of levels to reorder at the current maxLevel */
+        for(;;) {
+            /* look for a sequence of levels that are all at >=maxLevel */
+            /* look for the first index of such a sequence */
+            while(start<length && levels[start]<maxLevel) {
+                ++start;
+            }
+            if(start>=length) {
+                break;  /* no more such runs */
+            }
+
+            /* look for the limit of such a sequence (the index behind it) */
+            for(limit=start; ++limit<length && levels[limit]>=maxLevel;) {}
+
+            /*
+             * Swap the entire interval of indexes from start to limit-1.
+             * We don't need to swap the levels for the purpose of this
+             * algorithm: the sequence of levels that we look at does not
+             * move anyway.
+             */
+            end=limit-1;
+            while(start<end) {
+                temp=indexMap[start];
+                indexMap[start]=indexMap[end];
+                indexMap[end]=temp;
+
+                ++start;
+                --end;
+            }
+
+            if(limit==length) {
+                break;  /* no more such sequences */
+            } else {
+                start=limit+1;
+            }
+        }
+    } while(--maxLevel>=minLevel);
+}
+
+/* API functions for logical<->visual mapping ------------------------------- */
+
+U_CAPI int32_t U_EXPORT2
+ubidi_getVisualIndex(UBiDi *pBiDi, int32_t logicalIndex, UErrorCode *pErrorCode) {
+    int32_t visualIndex=UBIDI_MAP_NOWHERE;
+    RETURN_IF_NULL_OR_FAILING_ERRCODE(pErrorCode, -1);
+    RETURN_IF_NOT_VALID_PARA_OR_LINE(pBiDi, *pErrorCode, -1);
+    RETURN_IF_BAD_RANGE(logicalIndex, 0, pBiDi->length, *pErrorCode, -1);
+
+    /* we can do the trivial cases without the runs array */
+    switch(pBiDi->direction) {
+    case UBIDI_LTR:
+        visualIndex=logicalIndex;
+        break;
+    case UBIDI_RTL:
+        visualIndex=pBiDi->length-logicalIndex-1;
+        break;
+    default:
+        if(!ubidi_getRuns(pBiDi, pErrorCode)) {
+            *pErrorCode=U_MEMORY_ALLOCATION_ERROR;
+            return -1;
+        } else {
+            Run *runs=pBiDi->runs;
+            int32_t i, visualStart=0, offset, length;
+
+            /* linear search for the run, search on the visual runs */
+            for(i=0; i<pBiDi->runCount; ++i) {
+                length=runs[i].visualLimit-visualStart;
+                offset=logicalIndex-GET_INDEX(runs[i].logicalStart);
+                if(offset>=0 && offset<length) {
+                    if(IS_EVEN_RUN(runs[i].logicalStart)) {
+                        /* LTR */
+                        visualIndex=visualStart+offset;
+                    } else {
+                        /* RTL */
+                        visualIndex=visualStart+length-offset-1;
+                    }
+                    break;          /* exit for loop */
+                }
+                visualStart+=length;
+            }
+            if(i>=pBiDi->runCount) {
+                return UBIDI_MAP_NOWHERE;
+            }
+        }
+    }
+
+    if(pBiDi->insertPoints.size>0) {
+        /* add the number of added marks until the calculated visual index */
+        Run *runs=pBiDi->runs;
+        int32_t i, length, insertRemove;
+        int32_t visualStart=0, markFound=0;
+        for(i=0; ; i++, visualStart+=length) {
+            length=runs[i].visualLimit-visualStart;
+            insertRemove=runs[i].insertRemove;
+            if(insertRemove & (LRM_BEFORE|RLM_BEFORE)) {
+                markFound++;
+            }
+            /* is it the run containing the visual index? */
+            if(visualIndex<runs[i].visualLimit) {
+                return visualIndex+markFound;
+            }
+            if(insertRemove & (LRM_AFTER|RLM_AFTER)) {
+                markFound++;
+            }
+        }
+    }
+    else if(pBiDi->controlCount>0) {
+        /* subtract the number of controls until the calculated visual index */
+        Run *runs=pBiDi->runs;
+        int32_t i, j, start, limit, length, insertRemove;
+        int32_t visualStart=0, controlFound=0;
+        UChar uchar=pBiDi->text[logicalIndex];
+        /* is the logical index pointing to a control ? */
+        if(IS_BIDI_CONTROL_CHAR(uchar)) {
+            return UBIDI_MAP_NOWHERE;
+        }
+        /* loop on runs */
+        for(i=0; ; i++, visualStart+=length) {
+            length=runs[i].visualLimit-visualStart;
+            insertRemove=runs[i].insertRemove;
+            /* calculated visual index is beyond this run? */
+            if(visualIndex>=runs[i].visualLimit) {
+                controlFound-=insertRemove;
+                continue;
+            }
+            /* calculated visual index must be within current run */
+            if(insertRemove==0) {
+                return visualIndex-controlFound;
+            }
+            if(IS_EVEN_RUN(runs[i].logicalStart)) {
+                /* LTR: check from run start to logical index */
+                start=runs[i].logicalStart;
+                limit=logicalIndex;
+            } else {
+                /* RTL: check from logical index to run end */
+                start=logicalIndex+1;
+                limit=GET_INDEX(runs[i].logicalStart)+length;
+            }
+            for(j=start; j<limit; j++) {
+                uchar=pBiDi->text[j];
+                if(IS_BIDI_CONTROL_CHAR(uchar)) {
+                    controlFound++;
+                }
+            }
+            return visualIndex-controlFound;
+        }
+    }
+
+    return visualIndex;
+}
+
+U_CAPI int32_t U_EXPORT2
+ubidi_getLogicalIndex(UBiDi *pBiDi, int32_t visualIndex, UErrorCode *pErrorCode) {
+    Run *runs;
+    int32_t i, runCount, start;
+    RETURN_IF_NULL_OR_FAILING_ERRCODE(pErrorCode, -1);
+    RETURN_IF_NOT_VALID_PARA_OR_LINE(pBiDi, *pErrorCode, -1);
+    RETURN_IF_BAD_RANGE(visualIndex, 0, pBiDi->resultLength, *pErrorCode, -1);
+    /* we can do the trivial cases without the runs array */
+    if(pBiDi->insertPoints.size==0 && pBiDi->controlCount==0) {
+        if(pBiDi->direction==UBIDI_LTR) {
+            return visualIndex;
+        }
+        else if(pBiDi->direction==UBIDI_RTL) {
+            return pBiDi->length-visualIndex-1;
+        }
+    }
+    if(!ubidi_getRuns(pBiDi, pErrorCode)) {
+        *pErrorCode=U_MEMORY_ALLOCATION_ERROR;
+        return -1;
+    }
+
+    runs=pBiDi->runs;
+    runCount=pBiDi->runCount;
+    if(pBiDi->insertPoints.size>0) {
+        /* handle inserted LRM/RLM */
+        int32_t markFound=0, insertRemove;
+        int32_t visualStart=0, length;
+        runs=pBiDi->runs;
+        /* subtract number of marks until visual index */
+        for(i=0; ; i++, visualStart+=length) {
+            length=runs[i].visualLimit-visualStart;
+            insertRemove=runs[i].insertRemove;
+            if(insertRemove&(LRM_BEFORE|RLM_BEFORE)) {
+                if(visualIndex<=(visualStart+markFound)) {
+                    return UBIDI_MAP_NOWHERE;
+                }
+                markFound++;
+            }
+            /* is adjusted visual index within this run? */
+            if(visualIndex<(runs[i].visualLimit+markFound)) {
+                visualIndex-=markFound;
+                break;
+            }
+            if(insertRemove&(LRM_AFTER|RLM_AFTER)) {
+                if(visualIndex==(visualStart+length+markFound)) {
+                    return UBIDI_MAP_NOWHERE;
+                }
+                markFound++;
+            }
+        }
+    }
+    else if(pBiDi->controlCount>0) {
+        /* handle removed BiDi control characters */
+        int32_t controlFound=0, insertRemove, length;
+        int32_t logicalStart, logicalEnd, visualStart=0, j, k;
+        UChar uchar;
+        UBool evenRun;
+        /* add number of controls until visual index */
+        for(i=0; ; i++, visualStart+=length) {
+            length=runs[i].visualLimit-visualStart;
+            insertRemove=runs[i].insertRemove;
+            /* is adjusted visual index beyond current run? */
+            if(visualIndex>=(runs[i].visualLimit-controlFound+insertRemove)) {
+                controlFound-=insertRemove;
+                continue;
+            }
+            /* adjusted visual index is within current run */
+            if(insertRemove==0) {
+                visualIndex+=controlFound;
+                break;
+            }
+            /* count non-control chars until visualIndex */
+            logicalStart=runs[i].logicalStart;
+            evenRun=IS_EVEN_RUN(logicalStart);
+            REMOVE_ODD_BIT(logicalStart);
+            logicalEnd=logicalStart+length-1;
+            for(j=0; j<length; j++) {
+                k= evenRun ? logicalStart+j : logicalEnd-j;
+                uchar=pBiDi->text[k];
+                if(IS_BIDI_CONTROL_CHAR(uchar)) {
+                    controlFound++;
+                }
+                if((visualIndex+controlFound)==(visualStart+j)) {
+                    break;
+                }
+            }
+            visualIndex+=controlFound;
+            break;
+        }
+    }
+    /* handle all cases */
+    if(runCount<=10) {
+        /* linear search for the run */
+        for(i=0; visualIndex>=runs[i].visualLimit; ++i) {}
+    } else {
+        /* binary search for the run */
+        int32_t begin=0, limit=runCount;
+
+        /* the middle if() is guaranteed to find the run, we don't need a loop limit */
+        for(;;) {
+            i=(begin+limit)/2;
+            if(visualIndex>=runs[i].visualLimit) {
+                begin=i+1;
+            } else if(i==0 || visualIndex>=runs[i-1].visualLimit) {
+                break;
+            } else {
+                limit=i;
+            }
+        }
+    }
+
+    start=runs[i].logicalStart;
+    if(IS_EVEN_RUN(start)) {
+        /* LTR */
+        /* the offset in runs[i] is visualIndex-runs[i-1].visualLimit */
+        if(i>0) {
+            visualIndex-=runs[i-1].visualLimit;
+        }
+        return start+visualIndex;
+    } else {
+        /* RTL */
+        return GET_INDEX(start)+runs[i].visualLimit-visualIndex-1;
+    }
+}
+
+U_CAPI void U_EXPORT2
+ubidi_getLogicalMap(UBiDi *pBiDi, int32_t *indexMap, UErrorCode *pErrorCode) {
+    RETURN_VOID_IF_NULL_OR_FAILING_ERRCODE(pErrorCode);
+    /* ubidi_countRuns() checks for VALID_PARA_OR_LINE */
+    ubidi_countRuns(pBiDi, pErrorCode);
+    if(U_FAILURE(*pErrorCode)) {
+        /* no op */
+    } else if(indexMap==NULL) {
+        *pErrorCode=U_ILLEGAL_ARGUMENT_ERROR;
+    } else {
+        /* fill a logical-to-visual index map using the runs[] */
+        int32_t visualStart, visualLimit, i, j, k;
+        int32_t logicalStart, logicalLimit;
+        Run *runs=pBiDi->runs;
+        if (pBiDi->length<=0) {
+            return;
+        }
+        if (pBiDi->length>pBiDi->resultLength) {
+            uprv_memset(indexMap, 0xFF, pBiDi->length*sizeof(int32_t));
+        }
+
+        visualStart=0;
+        for(j=0; j<pBiDi->runCount; ++j) {
+            logicalStart=GET_INDEX(runs[j].logicalStart);
+            visualLimit=runs[j].visualLimit;
+            if(IS_EVEN_RUN(runs[j].logicalStart)) {
+                do { /* LTR */
+                    indexMap[logicalStart++]=visualStart++;
+                } while(visualStart<visualLimit);
+            } else {
+                logicalStart+=visualLimit-visualStart;  /* logicalLimit */
+                do { /* RTL */
+                    indexMap[--logicalStart]=visualStart++;
+                } while(visualStart<visualLimit);
+            }
+            /* visualStart==visualLimit; */
+        }
+
+        if(pBiDi->insertPoints.size>0) {
+            int32_t markFound=0, runCount=pBiDi->runCount;
+            int32_t length, insertRemove;
+            visualStart=0;
+            /* add number of marks found until each index */
+            for(i=0; i<runCount; i++, visualStart+=length) {
+                length=runs[i].visualLimit-visualStart;
+                insertRemove=runs[i].insertRemove;
+                if(insertRemove&(LRM_BEFORE|RLM_BEFORE)) {
+                    markFound++;
+                }
+                if(markFound>0) {
+                    logicalStart=GET_INDEX(runs[i].logicalStart);
+                    logicalLimit=logicalStart+length;
+                    for(j=logicalStart; j<logicalLimit; j++) {
+                        indexMap[j]+=markFound;
+                    }
+                }
+                if(insertRemove&(LRM_AFTER|RLM_AFTER)) {
+                    markFound++;
+                }
+            }
+        }
+        else if(pBiDi->controlCount>0) {
+            int32_t controlFound=0, runCount=pBiDi->runCount;
+            int32_t length, insertRemove;
+            UBool evenRun;
+            UChar uchar;
+            visualStart=0;
+            /* subtract number of controls found until each index */
+            for(i=0; i<runCount; i++, visualStart+=length) {
+                length=runs[i].visualLimit-visualStart;
+                insertRemove=runs[i].insertRemove;
+                /* no control found within previous runs nor within this run */
+                if((controlFound-insertRemove)==0) {
+                    continue;
+                }
+                logicalStart=runs[i].logicalStart;
+                evenRun=IS_EVEN_RUN(logicalStart);
+                REMOVE_ODD_BIT(logicalStart);
+                logicalLimit=logicalStart+length;
+                /* if no control within this run */
+                if(insertRemove==0) {
+                    for(j=logicalStart; j<logicalLimit; j++) {
+                        indexMap[j]-=controlFound;
+                    }
+                    continue;
+                }
+                for(j=0; j<length; j++) {
+                    k= evenRun ? logicalStart+j : logicalLimit-j-1;
+                    uchar=pBiDi->text[k];
+                    if(IS_BIDI_CONTROL_CHAR(uchar)) {
+                        controlFound++;
+                        indexMap[k]=UBIDI_MAP_NOWHERE;
+                        continue;
+                    }
+                    indexMap[k]-=controlFound;
+                }
+            }
+        }
+    }
+}
+
+U_CAPI void U_EXPORT2
+ubidi_getVisualMap(UBiDi *pBiDi, int32_t *indexMap, UErrorCode *pErrorCode) {
+    RETURN_VOID_IF_NULL_OR_FAILING_ERRCODE(pErrorCode);
+    if(indexMap==NULL) {
+        *pErrorCode=U_ILLEGAL_ARGUMENT_ERROR;
+        return;
+    }
+    /* ubidi_countRuns() checks for VALID_PARA_OR_LINE */
+    ubidi_countRuns(pBiDi, pErrorCode);
+    if(U_SUCCESS(*pErrorCode)) {
+        /* fill a visual-to-logical index map using the runs[] */
+        Run *runs=pBiDi->runs, *runsLimit=runs+pBiDi->runCount;
+        int32_t logicalStart, visualStart, visualLimit, *pi=indexMap;
+
+        if (pBiDi->resultLength<=0) {
+            return;
+        }
+        visualStart=0;
+        for(; runs<runsLimit; ++runs) {
+            logicalStart=runs->logicalStart;
+            visualLimit=runs->visualLimit;
+            if(IS_EVEN_RUN(logicalStart)) {
+                do { /* LTR */
+                    *pi++ = logicalStart++;
+                } while(++visualStart<visualLimit);
+            } else {
+                REMOVE_ODD_BIT(logicalStart);
+                logicalStart+=visualLimit-visualStart;  /* logicalLimit */
+                do { /* RTL */
+                    *pi++ = --logicalStart;
+                } while(++visualStart<visualLimit);
+            }
+            /* visualStart==visualLimit; */
+        }
+
+        if(pBiDi->insertPoints.size>0) {
+            int32_t markFound=0, runCount=pBiDi->runCount;
+            int32_t insertRemove, i, j, k;
+            runs=pBiDi->runs;
+            /* count all inserted marks */
+            for(i=0; i<runCount; i++) {
+                insertRemove=runs[i].insertRemove;
+                if(insertRemove&(LRM_BEFORE|RLM_BEFORE)) {
+                    markFound++;
+                }
+                if(insertRemove&(LRM_AFTER|RLM_AFTER)) {
+                    markFound++;
+                }
+            }
+            /* move back indexes by number of preceding marks */
+            k=pBiDi->resultLength;
+            for(i=runCount-1; i>=0 && markFound>0; i--) {
+                insertRemove=runs[i].insertRemove;
+                if(insertRemove&(LRM_AFTER|RLM_AFTER)) {
+                    indexMap[--k]= UBIDI_MAP_NOWHERE;
+                    markFound--;
+                }
+                visualStart= i>0 ? runs[i-1].visualLimit : 0;
+                for(j=runs[i].visualLimit-1; j>=visualStart && markFound>0; j--) {
+                    indexMap[--k]=indexMap[j];
+                }
+                if(insertRemove&(LRM_BEFORE|RLM_BEFORE)) {
+                    indexMap[--k]= UBIDI_MAP_NOWHERE;
+                    markFound--;
+                }
+            }
+        }
+        else if(pBiDi->controlCount>0) {
+            int32_t runCount=pBiDi->runCount, logicalEnd;
+            int32_t insertRemove, length, i, j, k, m;
+            UChar uchar;
+            UBool evenRun;
+            runs=pBiDi->runs;
+            visualStart=0;
+            /* move forward indexes by number of preceding controls */
+            k=0;
+            for(i=0; i<runCount; i++, visualStart+=length) {
+                length=runs[i].visualLimit-visualStart;
+                insertRemove=runs[i].insertRemove;
+                /* if no control found yet, nothing to do in this run */
+                if((insertRemove==0)&&(k==visualStart)) {
+                    k+=length;
+                    continue;
+                }
+                /* if no control in this run */
+                if(insertRemove==0) {
+                    visualLimit=runs[i].visualLimit;
+                    for(j=visualStart; j<visualLimit; j++) {
+                        indexMap[k++]=indexMap[j];
+                    }
+                    continue;
+                }
+                logicalStart=runs[i].logicalStart;
+                evenRun=IS_EVEN_RUN(logicalStart);
+                REMOVE_ODD_BIT(logicalStart);
+                logicalEnd=logicalStart+length-1;
+                for(j=0; j<length; j++) {
+                    m= evenRun ? logicalStart+j : logicalEnd-j;
+                    uchar=pBiDi->text[m];
+                    if(!IS_BIDI_CONTROL_CHAR(uchar)) {
+                        indexMap[k++]=m;
+                    }
+                }
+            }
+        }
+    }
+}
+
+U_CAPI void U_EXPORT2
+ubidi_invertMap(const int32_t *srcMap, int32_t *destMap, int32_t length) {
+    if(srcMap!=NULL && destMap!=NULL && length>0) {
+        const int32_t *pi;
+        int32_t destLength=-1, count=0;
+        /* find highest value and count positive indexes in srcMap */
+        pi=srcMap+length;
+        while(pi>srcMap) {
+            if(*--pi>destLength) {
+                destLength=*pi;
+            }
+            if(*pi>=0) {
+                count++;
+            }
+        }
+        destLength++;           /* add 1 for origin 0 */
+        if(count<destLength) {
+            /* we must fill unmatched destMap entries with -1 */
+            uprv_memset(destMap, 0xFF, destLength*sizeof(int32_t));
+        }
+        pi=srcMap+length;
+        while(length>0) {
+            if(*--pi>=0) {
+                destMap[*pi]=--length;
+            } else {
+                --length;
+            }
+        }
+    }
+}
diff --git a/vendor/icu/src/ubidiwrt.cpp b/vendor/icu/src/ubidiwrt.cpp
new file mode 100644
index 0000000000..2443338acf
--- /dev/null
+++ b/vendor/icu/src/ubidiwrt.cpp
@@ -0,0 +1,640 @@
+// © 2016 and later: Unicode, Inc. and others.
+// License & terms of use: http://www.unicode.org/copyright.html
+/*
+******************************************************************************
+*
+*   Copyright (C) 2000-2015, International Business Machines
+*   Corporation and others.  All Rights Reserved.
+*
+******************************************************************************
+*   file name:  ubidiwrt.c
+*   encoding:   UTF-8
+*   tab size:   8 (not used)
+*   indentation:4
+*
+*   created on: 1999aug06
+*   created by: Markus W. Scherer, updated by Matitiahu Allouche
+*
+* This file contains implementations for BiDi functions that use
+* the core algorithm and core API to write reordered text.
+*/
+
+#include <unicode/utypes.h>
+#include <unicode/ustring.h>
+#include <unicode/uchar.h>
+#include <unicode/ubidi.h>
+#include <unicode/utf16.h>
+#include "cmemory.h"
+#include "ustr_imp.h"
+#include "ubidiimp.h"
+
+/*
+ * The function implementations in this file are designed
+ * for UTF-16 and UTF-32, not for UTF-8.
+ *
+ * Assumptions that are not true for UTF-8:
+ * - Any code point always needs the same number of code units
+ *   ("minimum-length-problem" of UTF-8)
+ * - The BiDi control characters need only one code unit each
+ *
+ * Further assumptions for all UTFs:
+ * - u_charMirror(c) needs the same number of code units as c
+ */
+#if UTF_SIZE==8
+# error reimplement ubidi_writeReordered() for UTF-8, see comment above
+#endif
+
+#define IS_COMBINING(type) ((1UL<<(type))&(1UL<<U_NON_SPACING_MARK|1UL<<U_COMBINING_SPACING_MARK|1UL<<U_ENCLOSING_MARK))
+
+/*
+ * When we have UBIDI_OUTPUT_REVERSE set on ubidi_writeReordered(), then we
+ * semantically write RTL runs in reverse and later reverse them again.
+ * Instead, we actually write them in forward order to begin with.
+ * However, if the RTL run was to be mirrored, we need to mirror here now
+ * since the implicit second reversal must not do it.
+ * It looks strange to do mirroring in LTR output, but it is only because
+ * we are writing RTL output in reverse.
+ */
+static int32_t
+doWriteForward(const UChar *src, int32_t srcLength,
+               UChar *dest, int32_t destSize,
+               uint16_t options,
+               UErrorCode *pErrorCode) {
+    /* optimize for several combinations of options */
+    switch(options&(UBIDI_REMOVE_BIDI_CONTROLS|UBIDI_DO_MIRRORING)) {
+    case 0: {
+        /* simply copy the LTR run to the destination */
+        int32_t length=srcLength;
+        if(destSize<length) {
+            *pErrorCode=U_BUFFER_OVERFLOW_ERROR;
+            return srcLength;
+        }
+        do {
+            *dest++=*src++;
+        } while(--length>0);
+        return srcLength;
+    }
+    case UBIDI_DO_MIRRORING: {
+        /* do mirroring */
+        int32_t i=0, j=0;
+        UChar32 c;
+
+        if(destSize<srcLength) {
+            *pErrorCode=U_BUFFER_OVERFLOW_ERROR;
+            return srcLength;
+        }
+        do {
+            U16_NEXT(src, i, srcLength, c);
+            c=u_charMirror(c);
+            U16_APPEND_UNSAFE(dest, j, c);
+        } while(i<srcLength);
+        return srcLength;
+    }
+    case UBIDI_REMOVE_BIDI_CONTROLS: {
+        /* copy the LTR run and remove any BiDi control characters */
+        int32_t remaining=destSize;
+        UChar c;
+        do {
+            c=*src++;
+            if(!IS_BIDI_CONTROL_CHAR(c)) {
+                if(--remaining<0) {
+                    *pErrorCode=U_BUFFER_OVERFLOW_ERROR;
+
+                    /* preflight the length */
+                    while(--srcLength>0) {
+                        c=*src++;
+                        if(!IS_BIDI_CONTROL_CHAR(c)) {
+                            --remaining;
+                        }
+                    }
+                    return destSize-remaining;
+                }
+                *dest++=c;
+            }
+        } while(--srcLength>0);
+        return destSize-remaining;
+    }
+    default: {
+        /* remove BiDi control characters and do mirroring */
+        int32_t remaining=destSize;
+        int32_t i, j=0;
+        UChar32 c;
+        do {
+            i=0;
+            U16_NEXT(src, i, srcLength, c);
+            src+=i;
+            srcLength-=i;
+            if(!IS_BIDI_CONTROL_CHAR(c)) {
+                remaining-=i;
+                if(remaining<0) {
+                    *pErrorCode=U_BUFFER_OVERFLOW_ERROR;
+
+                    /* preflight the length */
+                    while(srcLength>0) {
+                        c=*src++;
+                        if(!IS_BIDI_CONTROL_CHAR(c)) {
+                            --remaining;
+                        }
+                        --srcLength;
+                    }
+                    return destSize-remaining;
+                }
+                c=u_charMirror(c);
+                U16_APPEND_UNSAFE(dest, j, c);
+            }
+        } while(srcLength>0);
+        return j;
+    }
+    } /* end of switch */
+}
+
+static int32_t
+doWriteReverse(const UChar *src, int32_t srcLength,
+               UChar *dest, int32_t destSize,
+               uint16_t options,
+               UErrorCode *pErrorCode) {
+    /*
+     * RTL run -
+     *
+     * RTL runs need to be copied to the destination in reverse order
+     * of code points, not code units, to keep Unicode characters intact.
+     *
+     * The general strategy for this is to read the source text
+     * in backward order, collect all code units for a code point
+     * (and optionally following combining characters, see below),
+     * and copy all these code units in ascending order
+     * to the destination for this run.
+     *
+     * Several options request whether combining characters
+     * should be kept after their base characters,
+     * whether BiDi control characters should be removed, and
+     * whether characters should be replaced by their mirror-image
+     * equivalent Unicode characters.
+     */
+    int32_t i, j;
+    UChar32 c;
+
+    /* optimize for several combinations of options */
+    switch(options&(UBIDI_REMOVE_BIDI_CONTROLS|UBIDI_DO_MIRRORING|UBIDI_KEEP_BASE_COMBINING)) {
+    case 0:
+        /*
+         * With none of the "complicated" options set, the destination
+         * run will have the same length as the source run,
+         * and there is no mirroring and no keeping combining characters
+         * with their base characters.
+         */
+        if(destSize<srcLength) {
+            *pErrorCode=U_BUFFER_OVERFLOW_ERROR;
+            return srcLength;
+        }
+        destSize=srcLength;
+
+        /* preserve character integrity */
+        do {
+            /* i is always after the last code unit known to need to be kept in this segment */
+            i=srcLength;
+
+            /* collect code units for one base character */
+            U16_BACK_1(src, 0, srcLength);
+
+            /* copy this base character */
+            j=srcLength;
+            do {
+                *dest++=src[j++];
+            } while(j<i);
+        } while(srcLength>0);
+        break;
+    case UBIDI_KEEP_BASE_COMBINING:
+        /*
+         * Here, too, the destination
+         * run will have the same length as the source run,
+         * and there is no mirroring.
+         * We do need to keep combining characters with their base characters.
+         */
+        if(destSize<srcLength) {
+            *pErrorCode=U_BUFFER_OVERFLOW_ERROR;
+            return srcLength;
+        }
+        destSize=srcLength;
+
+        /* preserve character integrity */
+        do {
+            /* i is always after the last code unit known to need to be kept in this segment */
+            i=srcLength;
+
+            /* collect code units and modifier letters for one base character */
+            do {
+                U16_PREV(src, 0, srcLength, c);
+            } while(srcLength>0 && IS_COMBINING(u_charType(c)));
+
+            /* copy this "user character" */
+            j=srcLength;
+            do {
+                *dest++=src[j++];
+            } while(j<i);
+        } while(srcLength>0);
+        break;
+    default:
+        /*
+         * With several "complicated" options set, this is the most
+         * general and the slowest copying of an RTL run.
+         * We will do mirroring, remove BiDi controls, and
+         * keep combining characters with their base characters
+         * as requested.
+         */
+        if(!(options&UBIDI_REMOVE_BIDI_CONTROLS)) {
+            i=srcLength;
+        } else {
+            /* we need to find out the destination length of the run,
+               which will not include the BiDi control characters */
+            int32_t length=srcLength;
+            UChar ch;
+
+            i=0;
+            do {
+                ch=*src++;
+                if(!IS_BIDI_CONTROL_CHAR(ch)) {
+                    ++i;
+                }
+            } while(--length>0);
+            src-=srcLength;
+        }
+
+        if(destSize<i) {
+            *pErrorCode=U_BUFFER_OVERFLOW_ERROR;
+            return i;
+        }
+        destSize=i;
+
+        /* preserve character integrity */
+        do {
+            /* i is always after the last code unit known to need to be kept in this segment */
+            i=srcLength;
+
+            /* collect code units for one base character */
+            U16_PREV(src, 0, srcLength, c);
+            if(options&UBIDI_KEEP_BASE_COMBINING) {
+                /* collect modifier letters for this base character */
+                while(srcLength>0 && IS_COMBINING(u_charType(c))) {
+                    U16_PREV(src, 0, srcLength, c);
+                }
+            }
+
+            if(options&UBIDI_REMOVE_BIDI_CONTROLS && IS_BIDI_CONTROL_CHAR(c)) {
+                /* do not copy this BiDi control character */
+                continue;
+            }
+
+            /* copy this "user character" */
+            j=srcLength;
+            if(options&UBIDI_DO_MIRRORING) {
+                /* mirror only the base character */
+                int32_t k=0;
+                c=u_charMirror(c);
+                U16_APPEND_UNSAFE(dest, k, c);
+                dest+=k;
+                j+=k;
+            }
+            while(j<i) {
+                *dest++=src[j++];
+            }
+        } while(srcLength>0);
+        break;
+    } /* end of switch */
+
+    return destSize;
+}
+
+U_CAPI int32_t U_EXPORT2
+ubidi_writeReverse(const UChar *src, int32_t srcLength,
+                   UChar *dest, int32_t destSize,
+                   uint16_t options,
+                   UErrorCode *pErrorCode) {
+    int32_t destLength;
+
+    if(pErrorCode==NULL || U_FAILURE(*pErrorCode)) {
+        return 0;
+    }
+
+    /* more error checking */
+    if( src==NULL || srcLength<-1 ||
+        destSize<0 || (destSize>0 && dest==NULL))
+    {
+        *pErrorCode=U_ILLEGAL_ARGUMENT_ERROR;
+        return 0;
+    }
+
+    /* do input and output overlap? */
+    if( dest!=NULL &&
+        ((src>=dest && src<dest+destSize) ||
+         (dest>=src && dest<src+srcLength)))
+    {
+        *pErrorCode=U_ILLEGAL_ARGUMENT_ERROR;
+        return 0;
+    }
+
+    if(srcLength==-1) {
+        srcLength=u_strlen(src);
+    }
+    if(srcLength>0) {
+        destLength=doWriteReverse(src, srcLength, dest, destSize, options, pErrorCode);
+    } else {
+        /* nothing to do */
+        destLength=0;
+    }
+
+    return u_terminateUChars(dest, destSize, destLength, pErrorCode);
+}
+
+U_CAPI int32_t U_EXPORT2
+ubidi_writeReordered(UBiDi *pBiDi,
+                     UChar *dest, int32_t destSize,
+                     uint16_t options,
+                     UErrorCode *pErrorCode) {
+    const UChar *text;
+    UChar *saveDest;
+    int32_t length, destCapacity;
+    int32_t run, runCount, logicalStart, runLength;
+
+    if(pErrorCode==NULL || U_FAILURE(*pErrorCode)) {
+        return 0;
+    }
+
+    /* more error checking */
+    if( pBiDi==NULL ||
+        (text=pBiDi->text)==NULL || (length=pBiDi->length)<0 ||
+        destSize<0 || (destSize>0 && dest==NULL))
+    {
+        *pErrorCode=U_ILLEGAL_ARGUMENT_ERROR;
+        return 0;
+    }
+
+    /* do input and output overlap? */
+    if( dest!=NULL &&
+        ((text>=dest && text<dest+destSize) ||
+         (dest>=text && dest<text+pBiDi->originalLength)))
+    {
+        *pErrorCode=U_ILLEGAL_ARGUMENT_ERROR;
+        return 0;
+    }
+
+    if(length==0) {
+        /* nothing to do */
+        return u_terminateUChars(dest, destSize, 0, pErrorCode);
+    }
+
+    runCount=ubidi_countRuns(pBiDi, pErrorCode);
+    if(U_FAILURE(*pErrorCode)) {
+        return 0;
+    }
+
+    /* destSize shrinks, later destination length=destCapacity-destSize */
+    saveDest=dest;
+    destCapacity=destSize;
+
+    /*
+     * Option "insert marks" implies UBIDI_INSERT_LRM_FOR_NUMERIC if the
+     * reordering mode (checked below) is appropriate.
+     */
+    if(pBiDi->reorderingOptions & UBIDI_OPTION_INSERT_MARKS) {
+        options|=UBIDI_INSERT_LRM_FOR_NUMERIC;
+        options&=~UBIDI_REMOVE_BIDI_CONTROLS;
+    }
+    /*
+     * Option "remove controls" implies UBIDI_REMOVE_BIDI_CONTROLS
+     * and cancels UBIDI_INSERT_LRM_FOR_NUMERIC.
+     */
+    if(pBiDi->reorderingOptions & UBIDI_OPTION_REMOVE_CONTROLS) {
+        options|=UBIDI_REMOVE_BIDI_CONTROLS;
+        options&=~UBIDI_INSERT_LRM_FOR_NUMERIC;
+    }
+    /*
+     * If we do not perform the "inverse BiDi" algorithm, then we
+     * don't need to insert any LRMs, and don't need to test for it.
+     */
+    if((pBiDi->reorderingMode != UBIDI_REORDER_INVERSE_NUMBERS_AS_L) &&
+       (pBiDi->reorderingMode != UBIDI_REORDER_INVERSE_LIKE_DIRECT)  &&
+       (pBiDi->reorderingMode != UBIDI_REORDER_INVERSE_FOR_NUMBERS_SPECIAL) &&
+       (pBiDi->reorderingMode != UBIDI_REORDER_RUNS_ONLY)) {
+        options&=~UBIDI_INSERT_LRM_FOR_NUMERIC;
+    }
+    /*
+     * Iterate through all visual runs and copy the run text segments to
+     * the destination, according to the options.
+     *
+     * The tests for where to insert LRMs ignore the fact that there may be
+     * BN codes or non-BMP code points at the beginning and end of a run;
+     * they may insert LRMs unnecessarily but the tests are faster this way
+     * (this would have to be improved for UTF-8).
+     *
+     * Note that the only errors that are set by doWriteXY() are buffer overflow
+     * errors. Ignore them until the end, and continue for preflighting.
+     */
+    if(!(options&UBIDI_OUTPUT_REVERSE)) {
+        /* forward output */
+        if(!(options&UBIDI_INSERT_LRM_FOR_NUMERIC)) {
+            /* do not insert BiDi controls */
+            for(run=0; run<runCount; ++run) {
+                if(UBIDI_LTR==ubidi_getVisualRun(pBiDi, run, &logicalStart, &runLength)) {
+                    runLength=doWriteForward(text+logicalStart, runLength,
+                                             dest, destSize,
+                                             (uint16_t)(options&~UBIDI_DO_MIRRORING), pErrorCode);
+                } else {
+                    runLength=doWriteReverse(text+logicalStart, runLength,
+                                             dest, destSize,
+                                             options, pErrorCode);
+                }
+                if(dest!=NULL) {
+                  dest+=runLength;
+                }
+                destSize-=runLength;
+            }
+        } else {
+            /* insert BiDi controls for "inverse BiDi" */
+            const DirProp *dirProps=pBiDi->dirProps;
+            const UChar *src;
+            UChar uc;
+            UBiDiDirection dir;
+            int32_t markFlag;
+
+            for(run=0; run<runCount; ++run) {
+                dir=ubidi_getVisualRun(pBiDi, run, &logicalStart, &runLength);
+                src=text+logicalStart;
+                /* check if something relevant in insertPoints */
+                markFlag=pBiDi->runs[run].insertRemove;
+                if(markFlag<0) {        /* BiDi controls count */
+                    markFlag=0;
+                }
+
+                if(UBIDI_LTR==dir) {
+                    if((pBiDi->isInverse) &&
+                       (/*run>0 &&*/ dirProps[logicalStart]!=L)) {
+                        markFlag |= LRM_BEFORE;
+                    }
+                    if (markFlag & LRM_BEFORE) {
+                        uc=LRM_CHAR;
+                    }
+                    else if (markFlag & RLM_BEFORE) {
+                        uc=RLM_CHAR;
+                    }
+                    else  uc=0;
+                    if(uc) {
+                        if(destSize>0) {
+                            *dest++=uc;
+                        }
+                        --destSize;
+                    }
+
+                    runLength=doWriteForward(src, runLength,
+                                             dest, destSize,
+                                             (uint16_t)(options&~UBIDI_DO_MIRRORING), pErrorCode);
+                    if(dest!=NULL) {
+                      dest+=runLength;
+                    }
+                    destSize-=runLength;
+
+                    if((pBiDi->isInverse) &&
+                       (/*run<runCount-1 &&*/ dirProps[logicalStart+runLength-1]!=L)) {
+                        markFlag |= LRM_AFTER;
+                    }
+                    if (markFlag & LRM_AFTER) {
+                        uc=LRM_CHAR;
+                    }
+                    else if (markFlag & RLM_AFTER) {
+                        uc=RLM_CHAR;
+                    }
+                    else  uc=0;
+                    if(uc) {
+                        if(destSize>0) {
+                            *dest++=uc;
+                        }
+                        --destSize;
+                    }
+                } else {                /* RTL run */
+                    if((pBiDi->isInverse) &&
+                       (/*run>0 &&*/ !(MASK_R_AL&DIRPROP_FLAG(dirProps[logicalStart+runLength-1])))) {
+                        markFlag |= RLM_BEFORE;
+                    }
+                    if (markFlag & LRM_BEFORE) {
+                        uc=LRM_CHAR;
+                    }
+                    else if (markFlag & RLM_BEFORE) {
+                        uc=RLM_CHAR;
+                    }
+                    else  uc=0;
+                    if(uc) {
+                        if(destSize>0) {
+                            *dest++=uc;
+                        }
+                        --destSize;
+                    }
+
+                    runLength=doWriteReverse(src, runLength,
+                                             dest, destSize,
+                                             options, pErrorCode);
+                    if(dest!=NULL) {
+                      dest+=runLength;
+                    }
+                    destSize-=runLength;
+
+                    if((pBiDi->isInverse) &&
+                       (/*run<runCount-1 &&*/ !(MASK_R_AL&DIRPROP_FLAG(dirProps[logicalStart])))) {
+                        markFlag |= RLM_AFTER;
+                    }
+                    if (markFlag & LRM_AFTER) {
+                        uc=LRM_CHAR;
+                    }
+                    else if (markFlag & RLM_AFTER) {
+                        uc=RLM_CHAR;
+                    }
+                    else  uc=0;
+                    if(uc) {
+                        if(destSize>0) {
+                            *dest++=uc;
+                        }
+                        --destSize;
+                    }
+                }
+            }
+        }
+    } else {
+        /* reverse output */
+        if(!(options&UBIDI_INSERT_LRM_FOR_NUMERIC)) {
+            /* do not insert BiDi controls */
+            for(run=runCount; --run>=0;) {
+                if(UBIDI_LTR==ubidi_getVisualRun(pBiDi, run, &logicalStart, &runLength)) {
+                    runLength=doWriteReverse(text+logicalStart, runLength,
+                                             dest, destSize,
+                                             (uint16_t)(options&~UBIDI_DO_MIRRORING), pErrorCode);
+                } else {
+                    runLength=doWriteForward(text+logicalStart, runLength,
+                                             dest, destSize,
+                                             options, pErrorCode);
+                }
+                if(dest!=NULL) {
+                  dest+=runLength;
+                }
+                destSize-=runLength;
+            }
+        } else {
+            /* insert BiDi controls for "inverse BiDi" */
+            const DirProp *dirProps=pBiDi->dirProps;
+            const UChar *src;
+            UBiDiDirection dir;
+
+            for(run=runCount; --run>=0;) {
+                /* reverse output */
+                dir=ubidi_getVisualRun(pBiDi, run, &logicalStart, &runLength);
+                src=text+logicalStart;
+
+                if(UBIDI_LTR==dir) {
+                    if(/*run<runCount-1 &&*/ dirProps[logicalStart+runLength-1]!=L) {
+                        if(destSize>0) {
+                            *dest++=LRM_CHAR;
+                        }
+                        --destSize;
+                    }
+
+                    runLength=doWriteReverse(src, runLength,
+                                             dest, destSize,
+                                             (uint16_t)(options&~UBIDI_DO_MIRRORING), pErrorCode);
+                    if(dest!=NULL) {
+                      dest+=runLength;
+                    }
+                    destSize-=runLength;
+
+                    if(/*run>0 &&*/ dirProps[logicalStart]!=L) {
+                        if(destSize>0) {
+                            *dest++=LRM_CHAR;
+                        }
+                        --destSize;
+                    }
+                } else {
+                    if(/*run<runCount-1 &&*/ !(MASK_R_AL&DIRPROP_FLAG(dirProps[logicalStart]))) {
+                        if(destSize>0) {
+                            *dest++=RLM_CHAR;
+                        }
+                        --destSize;
+                    }
+
+                    runLength=doWriteForward(src, runLength,
+                                             dest, destSize,
+                                             options, pErrorCode);
+                    if(dest!=NULL) {
+                      dest+=runLength;
+                    }
+                    destSize-=runLength;
+
+                    if(/*run>0 &&*/ !(MASK_R_AL&DIRPROP_FLAG(dirProps[logicalStart+runLength-1]))) {
+                        if(destSize>0) {
+                            *dest++=RLM_CHAR;
+                        }
+                        --destSize;
+                    }
+                }
+            }
+        }
+    }
+
+    return u_terminateUChars(saveDest, destCapacity, destCapacity-destSize, pErrorCode);
+}
diff --git a/vendor/icu/src/uchar.cpp b/vendor/icu/src/uchar.cpp
new file mode 100644
index 0000000000..154f429f8a
--- /dev/null
+++ b/vendor/icu/src/uchar.cpp
@@ -0,0 +1,725 @@
+// © 2016 and later: Unicode, Inc. and others.
+// License & terms of use: http://www.unicode.org/copyright.html
+/*
+********************************************************************************
+*   Copyright (C) 1996-2016, International Business Machines
+*   Corporation and others.  All Rights Reserved.
+********************************************************************************
+*
+* File UCHAR.C
+*
+* Modification History:
+*
+*   Date        Name        Description
+*   04/02/97    aliu        Creation.
+*   4/15/99     Madhu       Updated all the function definitions for C Implementation
+*   5/20/99     Madhu       Added the function u_getVersion()
+*   8/19/1999   srl         Upgraded scripts to Unicode3.0 
+*   11/11/1999  weiv        added u_isalnum(), cleaned comments
+*   01/11/2000  helena      Renamed u_getVersion to u_getUnicodeVersion.
+*   06/20/2000  helena      OS/400 port changes; mostly typecast.
+******************************************************************************
+*/
+
+#include <unicode/utypes.h>
+#include <unicode/uchar.h>
+#include <unicode/uscript.h>
+#include <unicode/udata.h>
+#include "uassert.h"
+#include "cmemory.h"
+#include "ucln_cmn.h"
+#include "utrie2.h"
+#include "udataswp.h"
+#include "uprops.h"
+#include "ustr_imp.h"
+
+/* uchar_props_data.h is machine-generated by genprops --csource */
+#define INCLUDED_FROM_UCHAR_C
+#include "uchar_props_data.h"
+
+/* constants and macros for access to the data ------------------------------ */
+
+/* getting a uint32_t properties word from the data */
+#define GET_PROPS(c, result) ((result)=UTRIE2_GET16(&propsTrie, c));
+
+/* API functions ------------------------------------------------------------ */
+
+/* Gets the Unicode character's general category.*/
+U_CAPI int8_t U_EXPORT2
+u_charType(UChar32 c) {
+    uint32_t props;
+    GET_PROPS(c, props);
+    return (int8_t)GET_CATEGORY(props);
+}
+
+/* Enumerate all code points with their general categories. */
+struct _EnumTypeCallback {
+    UCharEnumTypeRange *enumRange;
+    const void *context;
+};
+
+static uint32_t U_CALLCONV
+_enumTypeValue(const void *context, uint32_t value) {
+    (void)context;
+    return GET_CATEGORY(value);
+}
+
+static UBool U_CALLCONV
+_enumTypeRange(const void *context, UChar32 start, UChar32 end, uint32_t value) {
+    /* just cast the value to UCharCategory */
+    return ((struct _EnumTypeCallback *)context)->
+        enumRange(((struct _EnumTypeCallback *)context)->context,
+                  start, end+1, (UCharCategory)value);
+}
+
+U_CAPI void U_EXPORT2
+u_enumCharTypes(UCharEnumTypeRange *enumRange, const void *context) {
+    struct _EnumTypeCallback callback;
+
+    if(enumRange==NULL) {
+        return;
+    }
+
+    callback.enumRange=enumRange;
+    callback.context=context;
+    utrie2_enum(&propsTrie, _enumTypeValue, _enumTypeRange, &callback);
+}
+
+/* Checks if ch is a lower case letter.*/
+U_CAPI UBool U_EXPORT2
+u_islower(UChar32 c) {
+    uint32_t props;
+    GET_PROPS(c, props);
+    return (UBool)(GET_CATEGORY(props)==U_LOWERCASE_LETTER);
+}
+
+/* Checks if ch is an upper case letter.*/
+U_CAPI UBool U_EXPORT2
+u_isupper(UChar32 c) {
+    uint32_t props;
+    GET_PROPS(c, props);
+    return (UBool)(GET_CATEGORY(props)==U_UPPERCASE_LETTER);
+}
+
+/* Checks if ch is a title case letter; usually upper case letters.*/
+U_CAPI UBool U_EXPORT2
+u_istitle(UChar32 c) {
+    uint32_t props;
+    GET_PROPS(c, props);
+    return (UBool)(GET_CATEGORY(props)==U_TITLECASE_LETTER);
+}
+
+/* Checks if ch is a decimal digit. */
+U_CAPI UBool U_EXPORT2
+u_isdigit(UChar32 c) {
+    uint32_t props;
+    GET_PROPS(c, props);
+    return (UBool)(GET_CATEGORY(props)==U_DECIMAL_DIGIT_NUMBER);
+}
+
+U_CAPI UBool U_EXPORT2
+u_isxdigit(UChar32 c) {
+    uint32_t props;
+
+    /* check ASCII and Fullwidth ASCII a-fA-F */
+    if(
+        (c<=0x66 && c>=0x41 && (c<=0x46 || c>=0x61)) ||
+        (c>=0xff21 && c<=0xff46 && (c<=0xff26 || c>=0xff41))
+    ) {
+        return TRUE;
+    }
+
+    GET_PROPS(c, props);
+    return (UBool)(GET_CATEGORY(props)==U_DECIMAL_DIGIT_NUMBER);
+}
+
+/* Checks if the Unicode character is a letter.*/
+U_CAPI UBool U_EXPORT2
+u_isalpha(UChar32 c) {
+    uint32_t props;
+    GET_PROPS(c, props);
+    return (UBool)((CAT_MASK(props)&U_GC_L_MASK)!=0);
+}
+
+U_CAPI UBool U_EXPORT2
+u_isUAlphabetic(UChar32 c) {
+    return (u_getUnicodeProperties(c, 1)&U_MASK(UPROPS_ALPHABETIC))!=0;
+}
+
+/* Checks if c is a letter or a decimal digit */
+U_CAPI UBool U_EXPORT2
+u_isalnum(UChar32 c) {
+    uint32_t props;
+    GET_PROPS(c, props);
+    return (UBool)((CAT_MASK(props)&(U_GC_L_MASK|U_GC_ND_MASK))!=0);
+}
+
+/**
+ * Checks if c is alphabetic, or a decimal digit; implements UCHAR_POSIX_ALNUM.
+ * @internal
+ */
+U_CFUNC UBool
+u_isalnumPOSIX(UChar32 c) {
+    return (UBool)(u_isUAlphabetic(c) || u_isdigit(c));
+}
+
+/* Checks if ch is a unicode character with assigned character type.*/
+U_CAPI UBool U_EXPORT2
+u_isdefined(UChar32 c) {
+    uint32_t props;
+    GET_PROPS(c, props);
+    return (UBool)(GET_CATEGORY(props)!=0);
+}
+
+/* Checks if the Unicode character is a base form character that can take a diacritic.*/
+U_CAPI UBool U_EXPORT2
+u_isbase(UChar32 c) {
+    uint32_t props;
+    GET_PROPS(c, props);
+    return (UBool)((CAT_MASK(props)&(U_GC_L_MASK|U_GC_N_MASK|U_GC_MC_MASK|U_GC_ME_MASK))!=0);
+}
+
+/* Checks if the Unicode character is a control character.*/
+U_CAPI UBool U_EXPORT2
+u_iscntrl(UChar32 c) {
+    uint32_t props;
+    GET_PROPS(c, props);
+    return (UBool)((CAT_MASK(props)&(U_GC_CC_MASK|U_GC_CF_MASK|U_GC_ZL_MASK|U_GC_ZP_MASK))!=0);
+}
+
+U_CAPI UBool U_EXPORT2
+u_isISOControl(UChar32 c) {
+    return (uint32_t)c<=0x9f && (c<=0x1f || c>=0x7f);
+}
+
+/* Some control characters that are used as space. */
+#define IS_THAT_CONTROL_SPACE(c) \
+    (c<=0x9f && ((c>=TAB && c<=CR) || (c>=0x1c && c <=0x1f) || c==NL))
+
+/* Java has decided that U+0085 New Line is not whitespace any more. */
+#define IS_THAT_ASCII_CONTROL_SPACE(c) \
+    (c<=0x1f && c>=TAB && (c<=CR || c>=0x1c))
+
+/* Checks if the Unicode character is a space character.*/
+U_CAPI UBool U_EXPORT2
+u_isspace(UChar32 c) {
+    uint32_t props;
+    GET_PROPS(c, props);
+    return (UBool)((CAT_MASK(props)&U_GC_Z_MASK)!=0 || IS_THAT_CONTROL_SPACE(c));
+}
+
+U_CAPI UBool U_EXPORT2
+u_isJavaSpaceChar(UChar32 c) {
+    uint32_t props;
+    GET_PROPS(c, props);
+    return (UBool)((CAT_MASK(props)&U_GC_Z_MASK)!=0);
+}
+
+/* Checks if the Unicode character is a whitespace character.*/
+U_CAPI UBool U_EXPORT2
+u_isWhitespace(UChar32 c) {
+    uint32_t props;
+    GET_PROPS(c, props);
+    return (UBool)(
+                ((CAT_MASK(props)&U_GC_Z_MASK)!=0 &&
+                    c!=NBSP && c!=FIGURESP && c!=NNBSP) || /* exclude no-break spaces */
+                IS_THAT_ASCII_CONTROL_SPACE(c)
+           );
+}
+
+U_CAPI UBool U_EXPORT2
+u_isblank(UChar32 c) {
+    if((uint32_t)c<=0x9f) {
+        return c==9 || c==0x20; /* TAB or SPACE */
+    } else {
+        /* Zs */
+        uint32_t props;
+        GET_PROPS(c, props);
+        return (UBool)(GET_CATEGORY(props)==U_SPACE_SEPARATOR);
+    }
+}
+
+U_CAPI UBool U_EXPORT2
+u_isUWhiteSpace(UChar32 c) {
+    return (u_getUnicodeProperties(c, 1)&U_MASK(UPROPS_WHITE_SPACE))!=0;
+}
+
+/* Checks if the Unicode character is printable.*/
+U_CAPI UBool U_EXPORT2
+u_isprint(UChar32 c) {
+    uint32_t props;
+    GET_PROPS(c, props);
+    /* comparing ==0 returns FALSE for the categories mentioned */
+    return (UBool)((CAT_MASK(props)&U_GC_C_MASK)==0);
+}
+
+/**
+ * Checks if c is in \p{graph}\p{blank} - \p{cntrl}.
+ * Implements UCHAR_POSIX_PRINT.
+ * @internal
+ */
+U_CFUNC UBool
+u_isprintPOSIX(UChar32 c) {
+    uint32_t props;
+    GET_PROPS(c, props);
+    /*
+     * The only cntrl character in graph+blank is TAB (in blank).
+     * Here we implement (blank-TAB)=Zs instead of calling u_isblank().
+     */
+    return (UBool)((GET_CATEGORY(props)==U_SPACE_SEPARATOR) || u_isgraphPOSIX(c));
+}
+
+U_CAPI UBool U_EXPORT2
+u_isgraph(UChar32 c) {
+    uint32_t props;
+    GET_PROPS(c, props);
+    /* comparing ==0 returns FALSE for the categories mentioned */
+    return (UBool)((CAT_MASK(props)&
+                    (U_GC_CC_MASK|U_GC_CF_MASK|U_GC_CS_MASK|U_GC_CN_MASK|U_GC_Z_MASK))
+                   ==0);
+}
+
+/**
+ * Checks if c is in
+ * [^\p{space}\p{gc=Control}\p{gc=Surrogate}\p{gc=Unassigned}]
+ * with space=\p{Whitespace} and Control=Cc.
+ * Implements UCHAR_POSIX_GRAPH.
+ * @internal
+ */
+U_CFUNC UBool
+u_isgraphPOSIX(UChar32 c) {
+    uint32_t props;
+    GET_PROPS(c, props);
+    /* \p{space}\p{gc=Control} == \p{gc=Z}\p{Control} */
+    /* comparing ==0 returns FALSE for the categories mentioned */
+    return (UBool)((CAT_MASK(props)&
+                    (U_GC_CC_MASK|U_GC_CS_MASK|U_GC_CN_MASK|U_GC_Z_MASK))
+                   ==0);
+}
+
+U_CAPI UBool U_EXPORT2
+u_ispunct(UChar32 c) {
+    uint32_t props;
+    GET_PROPS(c, props);
+    return (UBool)((CAT_MASK(props)&U_GC_P_MASK)!=0);
+}
+
+/* Checks if the Unicode character can start a Unicode identifier.*/
+U_CAPI UBool U_EXPORT2
+u_isIDStart(UChar32 c) {
+    /* same as u_isalpha() */
+    uint32_t props;
+    GET_PROPS(c, props);
+    return (UBool)((CAT_MASK(props)&(U_GC_L_MASK|U_GC_NL_MASK))!=0);
+}
+
+/* Checks if the Unicode character can be a Unicode identifier part other than starting the
+ identifier.*/
+U_CAPI UBool U_EXPORT2
+u_isIDPart(UChar32 c) {
+    uint32_t props;
+    GET_PROPS(c, props);
+    return (UBool)(
+           (CAT_MASK(props)&
+            (U_GC_ND_MASK|U_GC_NL_MASK|
+             U_GC_L_MASK|
+             U_GC_PC_MASK|U_GC_MC_MASK|U_GC_MN_MASK)
+           )!=0 ||
+           u_isIDIgnorable(c));
+}
+
+/*Checks if the Unicode character can be ignorable in a Java or Unicode identifier.*/
+U_CAPI UBool U_EXPORT2
+u_isIDIgnorable(UChar32 c) {
+    if(c<=0x9f) {
+        return u_isISOControl(c) && !IS_THAT_ASCII_CONTROL_SPACE(c);
+    } else {
+        uint32_t props;
+        GET_PROPS(c, props);
+        return (UBool)(GET_CATEGORY(props)==U_FORMAT_CHAR);
+    }
+}
+
+/*Checks if the Unicode character can start a Java identifier.*/
+U_CAPI UBool U_EXPORT2
+u_isJavaIDStart(UChar32 c) {
+    uint32_t props;
+    GET_PROPS(c, props);
+    return (UBool)((CAT_MASK(props)&(U_GC_L_MASK|U_GC_SC_MASK|U_GC_PC_MASK))!=0);
+}
+
+/*Checks if the Unicode character can be a Java identifier part other than starting the
+ * identifier.
+ */
+U_CAPI UBool U_EXPORT2
+u_isJavaIDPart(UChar32 c) {
+    uint32_t props;
+    GET_PROPS(c, props);
+    return (UBool)(
+           (CAT_MASK(props)&
+            (U_GC_ND_MASK|U_GC_NL_MASK|
+             U_GC_L_MASK|
+             U_GC_SC_MASK|U_GC_PC_MASK|
+             U_GC_MC_MASK|U_GC_MN_MASK)
+           )!=0 ||
+           u_isIDIgnorable(c));
+}
+
+U_CAPI int32_t U_EXPORT2
+u_charDigitValue(UChar32 c) {
+    uint32_t props;
+    int32_t value;
+    GET_PROPS(c, props);
+    value=(int32_t)GET_NUMERIC_TYPE_VALUE(props)-UPROPS_NTV_DECIMAL_START;
+    if(value<=9) {
+        return value;
+    } else {
+        return -1;
+    }
+}
+
+U_CAPI double U_EXPORT2
+u_getNumericValue(UChar32 c) {
+    uint32_t props;
+    int32_t ntv;
+    GET_PROPS(c, props);
+    ntv=(int32_t)GET_NUMERIC_TYPE_VALUE(props);
+
+    if(ntv==UPROPS_NTV_NONE) {
+        return U_NO_NUMERIC_VALUE;
+    } else if(ntv<UPROPS_NTV_DIGIT_START) {
+        /* decimal digit */
+        return ntv-UPROPS_NTV_DECIMAL_START;
+    } else if(ntv<UPROPS_NTV_NUMERIC_START) {
+        /* other digit */
+        return ntv-UPROPS_NTV_DIGIT_START;
+    } else if(ntv<UPROPS_NTV_FRACTION_START) {
+        /* small integer */
+        return ntv-UPROPS_NTV_NUMERIC_START;
+    } else if(ntv<UPROPS_NTV_LARGE_START) {
+        /* fraction */
+        int32_t numerator=(ntv>>4)-12;
+        int32_t denominator=(ntv&0xf)+1;
+        return (double)numerator/denominator;
+    } else if(ntv<UPROPS_NTV_BASE60_START) {
+        /* large, single-significant-digit integer */
+        double numValue;
+        int32_t mant=(ntv>>5)-14;
+        int32_t exp=(ntv&0x1f)+2;
+        numValue=mant;
+
+        /* multiply by 10^exp without math.h */
+        while(exp>=4) {
+            numValue*=10000.;
+            exp-=4;
+        }
+        switch(exp) {
+        case 3:
+            numValue*=1000.;
+            break;
+        case 2:
+            numValue*=100.;
+            break;
+        case 1:
+            numValue*=10.;
+            break;
+        case 0:
+        default:
+            break;
+        }
+
+        return numValue;
+    } else if(ntv<UPROPS_NTV_FRACTION20_START) {
+        /* sexagesimal (base 60) integer */
+        int32_t numValue=(ntv>>2)-0xbf;
+        int32_t exp=(ntv&3)+1;
+
+        switch(exp) {
+        case 4:
+            numValue*=60*60*60*60;
+            break;
+        case 3:
+            numValue*=60*60*60;
+            break;
+        case 2:
+            numValue*=60*60;
+            break;
+        case 1:
+            numValue*=60;
+            break;
+        case 0:
+        default:
+            break;
+        }
+
+        return numValue;
+    } else if(ntv<UPROPS_NTV_RESERVED_START) {
+        // fraction-20 e.g. 3/80
+        int32_t frac20=ntv-UPROPS_NTV_FRACTION20_START;  // 0..0x17
+        int32_t numerator=2*(frac20&3)+1;
+        int32_t denominator=20<<(frac20>>2);
+        return (double)numerator/denominator;
+    } else {
+        /* reserved */
+        return U_NO_NUMERIC_VALUE;
+    }
+}
+
+U_CAPI int32_t U_EXPORT2
+u_digit(UChar32 ch, int8_t radix) {
+    int8_t value;
+    if((uint8_t)(radix-2)<=(36-2)) {
+        value=(int8_t)u_charDigitValue(ch);
+        if(value<0) {
+            /* ch is not a decimal digit, try latin letters */
+            if(ch>=0x61 && ch<=0x7A) {
+                value=(int8_t)(ch-0x57);  /* ch - 'a' + 10 */
+            } else if(ch>=0x41 && ch<=0x5A) {
+                value=(int8_t)(ch-0x37);  /* ch - 'A' + 10 */
+            } else if(ch>=0xFF41 && ch<=0xFF5A) {
+                value=(int8_t)(ch-0xFF37);  /* fullwidth ASCII a-z */
+            } else if(ch>=0xFF21 && ch<=0xFF3A) {
+                value=(int8_t)(ch-0xFF17);  /* fullwidth ASCII A-Z */
+            }
+        }
+    } else {
+        value=-1;   /* invalid radix */
+    }
+    return (int8_t)((value<radix) ? value : -1);
+}
+
+U_CAPI UChar32 U_EXPORT2
+u_forDigit(int32_t digit, int8_t radix) {
+    if((uint8_t)(radix-2)>(36-2) || (uint32_t)digit>=(uint32_t)radix) {
+        return 0;
+    } else if(digit<10) {
+        return (UChar32)(0x30+digit);
+    } else {
+        return (UChar32)((0x61-10)+digit);
+    }
+}
+
+/* miscellaneous, and support for uprops.cpp -------------------------------- */
+
+U_CAPI void U_EXPORT2
+u_getUnicodeVersion(UVersionInfo versionArray) {
+    if(versionArray!=NULL) {
+        uprv_memcpy(versionArray, dataVersion, U_MAX_VERSION_LENGTH);
+    }
+}
+
+U_CFUNC uint32_t
+u_getMainProperties(UChar32 c) {
+    uint32_t props;
+    GET_PROPS(c, props);
+    return props;
+}
+
+U_CFUNC uint32_t
+u_getUnicodeProperties(UChar32 c, int32_t column) {
+    U_ASSERT(column>=0);
+    if(column>=propsVectorsColumns) {
+        return 0;
+    } else {
+        uint16_t vecIndex=UTRIE2_GET16(&propsVectorsTrie, c);
+        return propsVectors[vecIndex+column];
+    }
+}
+
+U_CFUNC int32_t
+uprv_getMaxValues(int32_t column) {
+    switch(column) {
+    case 0:
+        return indexes[UPROPS_MAX_VALUES_INDEX];
+    case 2:
+        return indexes[UPROPS_MAX_VALUES_2_INDEX];
+    default:
+        return 0;
+    }
+}
+
+U_CAPI void U_EXPORT2
+u_charAge(UChar32 c, UVersionInfo versionArray) {
+    if(versionArray!=NULL) {
+        uint32_t version=u_getUnicodeProperties(c, 0)>>UPROPS_AGE_SHIFT;
+        versionArray[0]=(uint8_t)(version>>4);
+        versionArray[1]=(uint8_t)(version&0xf);
+        versionArray[2]=versionArray[3]=0;
+    }
+}
+
+U_CAPI UScriptCode U_EXPORT2
+uscript_getScript(UChar32 c, UErrorCode *pErrorCode) {
+    uint32_t scriptX;
+    if(pErrorCode==NULL || U_FAILURE(*pErrorCode)) {
+        return USCRIPT_INVALID_CODE;
+    }
+    if((uint32_t)c>0x10ffff) {
+        *pErrorCode=U_ILLEGAL_ARGUMENT_ERROR;
+        return USCRIPT_INVALID_CODE;
+    }
+    scriptX=u_getUnicodeProperties(c, 0)&UPROPS_SCRIPT_X_MASK;
+    if(scriptX<UPROPS_SCRIPT_X_WITH_COMMON) {
+        return (UScriptCode)scriptX;
+    } else if(scriptX<UPROPS_SCRIPT_X_WITH_INHERITED) {
+        return USCRIPT_COMMON;
+    } else if(scriptX<UPROPS_SCRIPT_X_WITH_OTHER) {
+        return USCRIPT_INHERITED;
+    } else {
+        return (UScriptCode)scriptExtensions[scriptX&UPROPS_SCRIPT_MASK];
+    }
+}
+
+U_CAPI UBool U_EXPORT2
+uscript_hasScript(UChar32 c, UScriptCode sc) {
+    const uint16_t *scx;
+    uint32_t scriptX=u_getUnicodeProperties(c, 0)&UPROPS_SCRIPT_X_MASK;
+    if(scriptX<UPROPS_SCRIPT_X_WITH_COMMON) {
+        return sc==(UScriptCode)scriptX;
+    }
+
+    scx=scriptExtensions+(scriptX&UPROPS_SCRIPT_MASK);
+    if(scriptX>=UPROPS_SCRIPT_X_WITH_OTHER) {
+        scx=scriptExtensions+scx[1];
+    }
+    if(sc>=USCRIPT_CODE_LIMIT) {
+        /* Guard against bogus input that would make us go past the Script_Extensions terminator. */
+        return FALSE;
+    }
+    while(sc>*scx) {
+        ++scx;
+    }
+    return sc==(*scx&0x7fff);
+}
+
+U_CAPI int32_t U_EXPORT2
+uscript_getScriptExtensions(UChar32 c,
+                            UScriptCode *scripts, int32_t capacity,
+                            UErrorCode *pErrorCode) {
+    uint32_t scriptX;
+    int32_t length;
+    const uint16_t *scx;
+    uint16_t sx;
+    if(pErrorCode==NULL || U_FAILURE(*pErrorCode)) {
+        return 0;
+    }
+    if(capacity<0 || (capacity>0 && scripts==NULL)) {
+        *pErrorCode=U_ILLEGAL_ARGUMENT_ERROR;
+        return 0;
+    }
+    scriptX=u_getUnicodeProperties(c, 0)&UPROPS_SCRIPT_X_MASK;
+    if(scriptX<UPROPS_SCRIPT_X_WITH_COMMON) {
+        if(capacity==0) {
+            *pErrorCode=U_BUFFER_OVERFLOW_ERROR;
+        } else {
+            scripts[0]=(UScriptCode)scriptX;
+        }
+        return 1;
+    }
+
+    scx=scriptExtensions+(scriptX&UPROPS_SCRIPT_MASK);
+    if(scriptX>=UPROPS_SCRIPT_X_WITH_OTHER) {
+        scx=scriptExtensions+scx[1];
+    }
+    length=0;
+    do {
+        sx=*scx++;
+        if(length<capacity) {
+            scripts[length]=(UScriptCode)(sx&0x7fff);
+        }
+        ++length;
+    } while(sx<0x8000);
+    if(length>capacity) {
+        *pErrorCode=U_BUFFER_OVERFLOW_ERROR;
+    }
+    return length;
+}
+
+U_CAPI UBlockCode U_EXPORT2
+ublock_getCode(UChar32 c) {
+    return (UBlockCode)((u_getUnicodeProperties(c, 0)&UPROPS_BLOCK_MASK)>>UPROPS_BLOCK_SHIFT);
+}
+
+/* property starts for UnicodeSet ------------------------------------------- */
+
+static UBool U_CALLCONV
+_enumPropertyStartsRange(const void *context, UChar32 start, UChar32 end, uint32_t value) {
+    /* add the start code point to the USet */
+    const USetAdder *sa=(const USetAdder *)context;
+    sa->add(sa->set, start);
+    (void)end;
+    (void)value;
+    return TRUE;
+}
+
+#define USET_ADD_CP_AND_NEXT(sa, cp) sa->add(sa->set, cp); sa->add(sa->set, cp+1)
+
+U_CFUNC void U_EXPORT2
+uchar_addPropertyStarts(const USetAdder *sa, UErrorCode *pErrorCode) {
+    if(U_FAILURE(*pErrorCode)) {
+        return;
+    }
+
+    /* add the start code point of each same-value range of the main trie */
+    utrie2_enum(&propsTrie, NULL, _enumPropertyStartsRange, sa);
+
+    /* add code points with hardcoded properties, plus the ones following them */
+
+    /* add for u_isblank() */
+    USET_ADD_CP_AND_NEXT(sa, TAB);
+
+    /* add for IS_THAT_CONTROL_SPACE() */
+    sa->add(sa->set, CR+1); /* range TAB..CR */
+    sa->add(sa->set, 0x1c);
+    sa->add(sa->set, 0x1f+1);
+    USET_ADD_CP_AND_NEXT(sa, NL);
+
+    /* add for u_isIDIgnorable() what was not added above */
+    sa->add(sa->set, DEL); /* range DEL..NBSP-1, NBSP added below */
+    sa->add(sa->set, HAIRSP);
+    sa->add(sa->set, RLM+1);
+    sa->add(sa->set, INHSWAP);
+    sa->add(sa->set, NOMDIG+1);
+    USET_ADD_CP_AND_NEXT(sa, ZWNBSP);
+
+    /* add no-break spaces for u_isWhitespace() what was not added above */
+    USET_ADD_CP_AND_NEXT(sa, NBSP);
+    USET_ADD_CP_AND_NEXT(sa, FIGURESP);
+    USET_ADD_CP_AND_NEXT(sa, NNBSP);
+
+    /* add for u_digit() */
+    sa->add(sa->set, U_a);
+    sa->add(sa->set, U_z+1);
+    sa->add(sa->set, U_A);
+    sa->add(sa->set, U_Z+1);
+    sa->add(sa->set, U_FW_a);
+    sa->add(sa->set, U_FW_z+1);
+    sa->add(sa->set, U_FW_A);
+    sa->add(sa->set, U_FW_Z+1);
+
+    /* add for u_isxdigit() */
+    sa->add(sa->set, U_f+1);
+    sa->add(sa->set, U_F+1);
+    sa->add(sa->set, U_FW_f+1);
+    sa->add(sa->set, U_FW_F+1);
+
+    /* add for UCHAR_DEFAULT_IGNORABLE_CODE_POINT what was not added above */
+    sa->add(sa->set, WJ); /* range WJ..NOMDIG */
+    sa->add(sa->set, 0xfff0);
+    sa->add(sa->set, 0xfffb+1);
+    sa->add(sa->set, 0xe0000);
+    sa->add(sa->set, 0xe0fff+1);
+
+    /* add for UCHAR_GRAPHEME_BASE and others */
+    USET_ADD_CP_AND_NEXT(sa, CGJ);
+}
+
+U_CFUNC void U_EXPORT2
+upropsvec_addPropertyStarts(const USetAdder *sa, UErrorCode *pErrorCode) {
+    if(U_FAILURE(*pErrorCode)) {
+        return;
+    }
+
+    /* add the start code point of each same-value range of the properties vectors trie */
+    utrie2_enum(&propsVectorsTrie, NULL, _enumPropertyStartsRange, sa);
+}
diff --git a/vendor/icu/src/uchar_props_data.h b/vendor/icu/src/uchar_props_data.h
new file mode 100644
index 0000000000..868631131c
--- /dev/null
+++ b/vendor/icu/src/uchar_props_data.h
@@ -0,0 +1,3622 @@
+// © 2016 and later: Unicode, Inc. and others.
+// License & terms of use: http://www.unicode.org/copyright.html
+//
+// Copyright (C) 1999-2016, International Business Machines
+// Corporation and others.  All Rights Reserved.
+//
+// file name: uchar_props_data.h
+//
+// machine-generated by: icu/tools/unicode/c/genprops/corepropsbuilder.cpp
+
+
+#ifdef INCLUDED_FROM_UCHAR_C
+
+static const UVersionInfo dataVersion={0xa,0,0,0};
+
+static const uint16_t propsTrie_index[21148]={
+0x45c,0x464,0x46c,0x474,0x48c,0x494,0x49c,0x4a4,0x4ac,0x4b4,0x4ba,0x4c2,0x4ca,0x4d2,0x4da,0x4e2,
+0x4e8,0x4f0,0x4f8,0x500,0x503,0x50b,0x513,0x51b,0x523,0x52b,0x527,0x52f,0x537,0x53f,0x544,0x54c,
+0x554,0x55c,0x560,0x568,0x570,0x578,0x580,0x588,0x584,0x58c,0x591,0x599,0x59f,0x5a7,0x5af,0x5b7,
+0x5bf,0x5c7,0x5cf,0x5d7,0x5dc,0x5e4,0x5e7,0x5ef,0x5f7,0x5ff,0x605,0x60d,0x60c,0x614,0x61c,0x624,
+0x634,0x62c,0x63c,0x644,0x47c,0x654,0x65c,0x64c,0x66c,0x66e,0x676,0x664,0x686,0x68c,0x694,0x67e,
+0x6a4,0x6aa,0x6b2,0x69c,0x6c2,0x6c8,0x6d0,0x6ba,0x6e0,0x6e6,0x6ee,0x6d8,0x6fe,0x706,0x70e,0x6f6,
+0x71e,0x724,0x72c,0x716,0x73c,0x742,0x74a,0x734,0x75a,0x75f,0x767,0x752,0x777,0x77e,0x786,0x76f,
+0x608,0x78e,0x796,0x47c,0x79e,0x7a6,0x7ae,0x47c,0x7b6,0x7be,0x7c6,0x7cb,0x7d3,0x7da,0x7e2,0x47c,
+0x5c7,0x7ea,0x7f2,0x7fa,0x802,0x554,0x812,0x80a,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,
+0x5c7,0x5c7,0x818,0x5c7,0x820,0x816,0x828,0x5c7,0x824,0x5c7,0x82e,0x836,0x83e,0x554,0x554,0x846,
+0x84e,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,
+0x5c7,0x5c7,0x5c7,0x853,0x85b,0x5c7,0x5c7,0x863,0x86b,0x873,0x87b,0x883,0x5c7,0x88b,0x893,0x89b,
+0x8ab,0x5c7,0x8b3,0x8b5,0x8bd,0x8a3,0x5c7,0x8c0,0x8d4,0x8c8,0x8d0,0x8dc,0x5c7,0x8e4,0x8ea,0x8f2,
+0x8fa,0x5c7,0x90a,0x912,0x91a,0x902,0x47c,0x47c,0x92a,0x92d,0x935,0x922,0x945,0x93d,0x5c7,0x94c,
+0x5c7,0x95b,0x954,0x963,0x96b,0x47c,0x973,0x97b,0x4fc,0x983,0x986,0x98c,0x993,0x986,0x523,0x99b,
+0x4ac,0x4ac,0x4ac,0x4ac,0x9a3,0x4ac,0x4ac,0x4ac,0x9b3,0x9bb,0x9c3,0x9cb,0x9d3,0x9d7,0x9df,0x9ab,
+0x9f7,0x9ff,0x9e7,0x9ef,0xa07,0xa0f,0xa17,0xa1f,0xa37,0xa27,0xa2f,0xa3f,0xa47,0xa56,0xa5b,0xa4e,
+0xa63,0xa63,0xa63,0xa63,0xa63,0xa63,0xa63,0xa63,0xa6b,0xa73,0x8f2,0xa76,0xa7e,0xa85,0xa8a,0xa92,
+0x8f2,0xa99,0xa98,0xaa9,0xaac,0x8f2,0x8f2,0xaa1,0x8f2,0x8f2,0x8f2,0x8f2,0x8f2,0xabb,0xac3,0xab3,
+0x8f2,0x8f2,0x8f2,0xac8,0x8f2,0x8f2,0x8f2,0x8f2,0x8f2,0x8f2,0x8f2,0xace,0xad6,0x8f2,0xade,0xae5,
+0x8f2,0x8f2,0x8f2,0x8f2,0x8f2,0x8f2,0x8f2,0x8f2,0xa63,0xa63,0xa63,0xa63,0xaed,0xa63,0xaf4,0xafb,
+0xa63,0xa63,0xa63,0xa63,0xa63,0xa63,0xa63,0xa63,0x8f2,0xb03,0xb0a,0xb0e,0xb14,0xb1a,0xb22,0xb27,
+0x554,0xb37,0xb2f,0xb3f,0x4ac,0x4ac,0x4ac,0xb47,0x4fc,0xb4f,0x5c7,0xb55,0xb65,0xb5d,0xb5d,0x523,
+0xb6d,0xb75,0xb7d,0x47c,0xb85,0x8f2,0x8f2,0xb8c,0x8f2,0x8f2,0x8f2,0x8f2,0x8f2,0x8f2,0xb94,0xb9a,
+0xbaa,0xba2,0x608,0x5c7,0xbb2,0x84e,0x5c7,0xbba,0xbc2,0xbc7,0x5c7,0x5c7,0xbcc,0x5b3,0x8f2,0xbd3,
+0xa93,0xbdb,0xbe1,0x8f2,0xbdb,0xbe9,0x8f2,0xa93,0x8f2,0x8f2,0x8f2,0x8f2,0x8f2,0x8f2,0x8f2,0x8f2,
+0xbf1,0x5c7,0x5c7,0x5c7,0xbf9,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,
+0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,
+0x5c7,0xbff,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,
+0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0xc04,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,
+0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,
+0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,
+0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,
+0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,
+0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,
+0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,
+0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,
+0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,
+0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x8c0,0x8f2,0x8f2,
+0xc0c,0x5c7,0xc0f,0x5c7,0xc17,0xc1d,0xc25,0xc2d,0xc32,0x5c7,0x5c7,0xc36,0x5c7,0x5c7,0x5c7,0x5c7,
+0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0xc3d,0x5c7,0xc44,0xc4a,0x5c7,0x5c7,0x5c7,0x5c7,
+0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0xc52,0x5c7,0x5c7,0x5c7,0xc5a,0x5c7,
+0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,
+0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0xc5c,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,
+0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0xc63,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,
+0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,
+0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,
+0x5c7,0x5c7,0x5c7,0xc6a,0x5c7,0x5c7,0x5c7,0xc71,0xc79,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,
+0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,0x5c7,
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+0x1b,0x1b,0x1b,0x1b,0x1b,0x1b,0x1b,0x1b,0x1b,0x1b,0x1b,0,0,0x1b,0x1b,0x1b,
+0x1b,0x1b,0x1b,0x1b,0x1b,0x1b,0x1b,0x1b,0x1b,0x1b,0x1b,0x1b,0,0x1b,0x1b,0x1b,
+0x1b,0x1b,0x1b,0x1b,0x1b,0x1b,0x1b,0x1b,0x1b,0x1b,0x1b,0x1b,0x2cb,0x2cb,0x30b,0x34b,
+0x38b,0x3cb,0x40b,0x44b,0x48b,0x4cb,0x50b,0x54b,0x54b,0,0,0,0x1b,0x1b,0x1b,0x1b,
+0x1b,0x1b,0x1b,0x1b,0x1b,0x1b,0x1b,0x1b,0x1b,0x1b,0x1b,0x1b,0x1b,0x1b,0x1b,0,
+0x1b,0x1b,0x1b,0x1b,0x1b,0x1b,0x1b,0x1b,0x1b,0x1b,0x1b,0x1b,0x1b,0x1b,0x1b,0x1b,
+0,0,0,0,0,0,0x1b,0x1b,0x1b,0x1b,0x1b,0x1b,0x1b,0x1b,0x1b,0x1b,
+0x1b,0x1b,0x1b,0x1b,0x1b,0x1b,0x1b,0x1b,0x1b,0x1b,0x1b,0x1b,0x1b,0x1b,0x1b,0x1b,
+0x1b,0x1b,0x1b,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0x1b,0x1b,0x1b,0x1b,0x1b,0x1b,0x1b,0x1b,0x1b,0x1b,0x1b,0x1b,0x1b,0x1b,0x1b,0x1b,
+0x1b,0x1b,0x1b,0x1b,0x1b,0x1b,0x1b,0x1b,0x1b,0x1b,0x1b,0x1b,0,0,0,0,
+0x1b,0x1b,0x1b,0x1b,0x1b,0x1b,0x1b,0x1b,0x1b,0,0,0,0,0,0,0,
+0x1b,0x1b,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0x1b,0x1b,0x1b,0x1b,0x1b,0x1b,0,0,0,0,0,0,0,0,0,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0x1b,0x1b,0x1b,0x1b,0x1b,0x1b,0x1b,0x1b,0x1b,0x1b,0x1b,0x1b,0x1b,0x1b,0x1b,0x1b,
+0x1b,0x1b,0x1b,0x1b,0x1b,0x1b,0x1b,0x1b,0x1b,0x1b,0x1b,0x1a,0x1a,0x1a,0x1a,0x1a,
+0x1b,0x1b,0x1b,0x1b,0x1b,0x1b,0x1b,0x1b,0x1b,0x1b,0x1b,0x1b,0x1b,0x1b,0x1b,0x1b,
+0x1b,0x1b,0x1b,0x1b,0x1b,0,0,0,0,0,0,0,0,0,0,0,
+0x1b,0x1b,0x1b,0x1b,0x1b,0x1b,0x1b,0x1b,0x1b,0x1b,0x1b,0x1b,0x1b,0,0,0,
+0x1b,0x1b,0x1b,0x1b,0x1b,0x1b,0x1b,0x1b,0x1b,0,0,0,0,0,0,0,
+0x1b,0x1b,0x1b,0x1b,0x1b,0x1b,0x1b,0x1b,0,0,0,0,0,0,0,0,
+0x1b,0x1b,0x1b,0x1b,0x1b,0x1b,0x1b,0x1b,0x1b,0x1b,0,0,0,0,0,0,
+0x1b,0x1b,0x1b,0x1b,0x1b,0x1b,0x1b,0x1b,0,0,0,0,0,0,0,0,
+0x1b,0x1b,0x1b,0x1b,0x1b,0x1b,0x1b,0x1b,0x1b,0x1b,0x1b,0x1b,0x1b,0x1b,0x1b,0x1b,
+0x1b,0,0,0,0x1b,0x1b,0x1b,0x1b,0x1b,0x1b,0x1b,0x1b,0x1b,0x1b,0x1b,0x1b,
+0x1b,0x1b,0x1b,0x1b,0,0,0,0,0,0,0,0,0,0,0,0,
+0,0,0,0,0,0,0,0,0x1b,0x1b,0x1b,0x1b,0x1b,0x1b,0x1b,0x1b,
+0x1b,0x1b,0x1b,0x1b,0x1b,0x1b,0x1b,0x1b,0x1b,0x1b,0x1b,0x1b,0x1b,0x1b,0x1b,0x1b,
+0,0,0,0,0,0,0,0,0x1b,0,0,0,0,0,0,0,
+0,0,0,0,0,0,0,0,0x1b,0x1b,0x1b,0x1b,0x1b,0x1b,0x1b,0x1b,
+0x1b,0x1b,0x1b,0x1b,0x1b,0x1b,0x1b,0x1b,5,0x705,5,5,5,5,5,5,
+5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,
+5,5,5,5,5,5,5,5,0x645,5,5,5,5,5,5,5,
+5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,
+5,5,5,5,5,5,0x645,5,5,5,5,5,5,5,5,5,
+5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,
+5,5,5,5,5,0x685,5,5,5,5,5,5,5,5,5,5,
+5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,
+5,5,5,5,5,5,5,0xcc5,5,5,5,5,5,5,5,5,
+0xf45,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,
+0xf45,5,5,5,5,5,5,5,5,5,5,5,5,5,0x6c5,5,
+5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,
+5,0x605,5,5,5,5,5,5,5,5,5,5,5,5,5,5,
+5,5,5,5,5,5,5,5,5,5,5,5,5,0x605,5,5,
+5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,
+5,5,5,5,5,5,5,5,0x605,5,5,5,5,5,5,5,
+5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,
+5,5,5,5,5,5,5,0x605,5,5,5,5,5,5,5,5,
+5,5,5,5,5,0x645,5,5,5,5,5,5,5,5,5,5,
+5,5,5,5,5,5,5,5,5,5,5,5,5,0,0,0,
+0,0,0,0,0,0,0,0,5,5,0,0,0,0,0,0,
+0,0,0,0,0,0,0,0,5,5,5,5,5,5,5,5,
+5,5,5,5,5,5,5,5,5,0,0,0,0,0,0,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,0,0,0,0,0,0,0,5,5,5,5,5,5,5,5,
+5,5,5,5,5,5,5,5,0x785,5,5,5,5,5,5,5,
+5,5,5,5,5,5,5,5,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10,
+0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10,
+0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0,0x10,0,0,0,0,0,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,0,0,0,0,0,0,0,6,6,6,6,6,6,6,6,
+6,6,6,6,6,6,6,6,0,0,0,0,0,0,0,0,
+0,0,0,0,0,0,0,0,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,
+0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,
+0x11,0x11,0x11,0x11,0x11,0x11,0,0,0,0,0,0
+};
+
+static const UTrie2 propsTrie={
+    propsTrie_index,
+    propsTrie_index+4464,
+    NULL,
+    4464,
+    16684,
+    0xa40,
+    0x11f0,
+    0x0,
+    0x0,
+    0x110000,
+    0x5298,
+    NULL, 0, FALSE, FALSE, 0, NULL
+};
+
+static const uint16_t propsVectorsTrie_index[29236]={
+0x4c4,0x4cc,0x4d4,0x4dc,0x4f4,0x4fc,0x504,0x50c,0x514,0x51c,0x524,0x52c,0x534,0x53c,0x544,0x54c,
+0x553,0x55b,0x563,0x56b,0x56e,0x576,0x57e,0x586,0x58e,0x596,0x59e,0x5a6,0x5ae,0x5b6,0x5be,0x5c6,
+0x5ce,0x5d6,0x5dd,0x5e5,0x5ed,0x5f5,0x5fd,0x605,0x60d,0x615,0x61a,0x622,0x629,0x631,0x639,0x641,
+0x649,0x651,0x659,0x661,0x668,0x670,0x678,0x680,0x688,0x690,0x698,0x6a0,0x6a8,0x6b0,0x6b8,0x6c0,
+0x193e,0xd41,0xe2e,0x6c8,0x4e4,0xe95,0xe9d,0x1ad4,0x120d,0x1225,0x1215,0x121d,0x781,0x787,0x78f,0x797,
+0x79f,0x7a5,0x7ad,0x7b5,0x7bd,0x7c3,0x7cb,0x7d3,0x7db,0x7e1,0x7e9,0x7f1,0x7f9,0x801,0x809,0x810,
+0x818,0x81e,0x826,0x82e,0x836,0x83c,0x844,0x84c,0x854,0x122d,0x85c,0x864,0x86c,0x873,0x87b,0x883,
+0x88b,0x88f,0x897,0x89e,0x8a6,0x8ae,0x8b6,0x8be,0x153d,0x1545,0x8c6,0x8ce,0x8d6,0x8de,0x8e6,0x8ed,
+0x15a3,0x1593,0x159b,0x1879,0x1881,0x123d,0x8f5,0x1235,0x1487,0x1487,0x1489,0x1251,0x1252,0x1245,0x1247,0x1249,
+0x15ab,0x15ad,0x8fd,0x15ad,0x905,0x90a,0x912,0x15b2,0x918,0x15ad,0x91e,0x926,0xc18,0x15ba,0x15ba,0x92e,
+0x15ca,0x15cb,0x15cb,0x15cb,0x15cb,0x15cb,0x15cb,0x15cb,0x15cb,0x15cb,0x15cb,0x15cb,0x15cb,0x15cb,0x15cb,0x15cb,
+0x15cb,0x15cb,0x15cb,0x15c2,0x936,0x15d3,0x15d3,0x93e,0xb25,0xb2d,0xb35,0xb3d,0x15e3,0x15db,0x946,0x94e,
+0x956,0x15ed,0x15f5,0x95e,0x15eb,0x966,0x1946,0xd49,0xb45,0xb4d,0xb55,0xb5a,0x17e7,0xc4b,0xc52,0x174f,
+0xbe8,0x194e,0xd51,0xd59,0xd61,0xd69,0xf4d,0xf4d,0x183f,0x1844,0xc85,0xc8d,0x18b5,0x18bd,0x19ef,0xe36,
+0x18c5,0xcd5,0xcdd,0x18cd,0x6d0,0x4e4,0xf2d,0xd71,0x176f,0x1757,0x1767,0x175f,0x17ff,0x17f7,0x17bf,0xbf8,
+0x125a,0x125a,0x125a,0x125a,0x125d,0x125a,0x125a,0x1265,0x96e,0x126d,0x972,0x97a,0x126d,0x982,0x98a,0x992,
+0x127d,0x1275,0x1285,0x99a,0x9a2,0x128d,0x9aa,0x9b2,0x1295,0x129d,0x12a5,0x12ad,0x9ba,0x12b5,0x12bc,0x12c4,
+0x12cc,0x12d4,0x12dc,0x12e4,0x12ec,0x12f3,0x12fb,0x1303,0x130b,0x1313,0x1316,0x1318,0x15fd,0x16e2,0x16e8,0x182f,
+0x1320,0x9c2,0x9ca,0x143a,0x143f,0x1442,0x144a,0x1328,0x1452,0x1452,0x1338,0x1330,0x1340,0x1348,0x1350,0x1358,
+0x1360,0x1368,0x1370,0x1378,0x16f0,0x1747,0x1889,0x19cf,0x1388,0x138f,0x1397,0x139f,0x1380,0x13a7,0x16f8,0x16ff,
+0x1605,0x1605,0x1605,0x1605,0x1605,0x1605,0x1605,0x1605,0x1707,0x170a,0x1707,0x1707,0x1712,0x1719,0x171b,0x1722,
+0x172a,0x172e,0x172e,0x1731,0x172e,0x172e,0x1737,0x172e,0x1777,0x1837,0x1891,0xb62,0xb68,0xb6e,0xb76,0xb7b,
+0x17d7,0xc28,0xc2c,0x184c,0x17c7,0x17c7,0x17c7,0xc00,0x17cf,0xc20,0x1817,0xc75,0xc08,0xc10,0xc10,0x18d5,
+0x1807,0x1899,0xc62,0xc65,0x9d2,0x160d,0x160d,0x9da,0x1615,0x1615,0x1615,0x1615,0x1615,0x1615,0x9e2,0x6d4,
+0x146f,0x1491,0x9ea,0x1499,0x9f2,0x14a1,0x14a9,0x14b1,0x9fa,0x9ff,0x14b9,0x14c0,0xa04,0xa0c,0x1827,0xbf0,
+0xa14,0x1517,0x151e,0x14c8,0x1526,0x152d,0x14d0,0xa1c,0x14e9,0x14e9,0x14eb,0x14d8,0x14e0,0x14e0,0x14e1,0x1535,
+0x161d,0x161d,0x161d,0x161d,0x161d,0x161d,0x161d,0x161d,0x161d,0x161d,0x161d,0x161d,0x161d,0x161d,0x161d,0x161d,
+0x161d,0x161d,0x161d,0x161d,0x161d,0x161d,0x161d,0x161d,0x161d,0x161d,0x161d,0x161d,0x161d,0x161d,0x161d,0x161d,
+0x161d,0x161d,0x161d,0x161d,0x161d,0x161d,0x161d,0x161d,0x161d,0x161d,0x161d,0x161d,0x161d,0x161d,0x161d,0x161d,
+0x161d,0x161d,0x161d,0x161d,0x161d,0x161d,0x161d,0x161d,0x161d,0x161d,0x161d,0x161d,0x161d,0x161d,0x161d,0x161d,
+0x161d,0x161d,0x161d,0x161d,0x161d,0x161d,0x161d,0x161d,0x161d,0x161d,0x161d,0x161d,0x161d,0x161d,0x161d,0x161d,
+0x161d,0x161d,0x161d,0x161d,0x161d,0x161d,0x161d,0x161d,0x161d,0x161d,0x161d,0x161d,0x161d,0x161d,0x161d,0x161d,
+0x161d,0x161d,0x161d,0x161d,0x161d,0x161d,0x161d,0x161d,0x161d,0x161d,0x161d,0x161d,0x161d,0x161d,0x161d,0x161d,
+0x161d,0x161d,0x161d,0x161d,0x161d,0x161d,0x161d,0x161d,0x161d,0x161d,0x161d,0x161d,0x161d,0x161d,0x161d,0x161d,
+0x161d,0x161d,0x161d,0x161d,0x161d,0x161d,0x161d,0x161d,0x161d,0x161d,0x161d,0x161d,0x161d,0x161d,0x161d,0x161d,
+0x161d,0x161d,0x161d,0x161d,0x161d,0x161d,0x161d,0x161d,0x161d,0x161d,0x161d,0x161d,0x161d,0x161d,0x161d,0x161d,
+0x161d,0x161d,0x161d,0x161d,0x161d,0x161d,0x161d,0x161d,0x161d,0x161d,0x161d,0x161d,0x161d,0x161d,0x161d,0x161d,
+0x161d,0x161d,0x161d,0x161d,0x161d,0x161d,0x161d,0x161d,0x161d,0x161d,0x161d,0x161d,0x161d,0x161d,0x161d,0x161d,
+0x161d,0x161d,0x161d,0x161d,0x161d,0x161d,0x161d,0x161d,0x161d,0x161d,0x161d,0x161d,0x161d,0x11c2,0x177f,0x177f,
+0x14f3,0x14f3,0x14f3,0x14f3,0x14f3,0x14f3,0x14f3,0x14f3,0x14f3,0x14f3,0x14f3,0x14f3,0x14f3,0x14f3,0x14f3,0x14f3,
+0x14f3,0x14f3,0x14f3,0x14f3,0x14f3,0x14f3,0x14f3,0x14f3,0x14f3,0x14f3,0x14f3,0x14f3,0x14f3,0x14f3,0x14f3,0x14f3,
+0x14f3,0x14f3,0x14f3,0x14f3,0x14f3,0x14f3,0x14f3,0x14f3,0x14f3,0x14f3,0x14f3,0x14f3,0x14f3,0x14f3,0x14f3,0x14f3,
+0x14f3,0x14f3,0x14f3,0x14f3,0x14f3,0x14f3,0x14f3,0x14f3,0x14f3,0x14f3,0x14f3,0x14f3,0x14f3,0x14f3,0x14f3,0x14f3,
+0x14f3,0x14f3,0x14f3,0x14f3,0x14f3,0x14f3,0x14f3,0x14f3,0x14f3,0x14f3,0x14f3,0x14f3,0x14f3,0x14f3,0x14f3,0x14f3,
+0x14f3,0x14f3,0x14f3,0x14f3,0x14f3,0x14f3,0x14f3,0x14f3,0x14f3,0x14f3,0x14f3,0x14f3,0x14f3,0x14f3,0x14f3,0x14f3,
+0x14f3,0x14f3,0x14f3,0x14f3,0x14f3,0x14f3,0x14f3,0x14f3,0x14f3,0x14f3,0x14f3,0x14f3,0x14f3,0x14f3,0x14f3,0x14f3,
+0x14f3,0x14f3,0x14f3,0x14f3,0x14f3,0x14f3,0x14f3,0x14f3,0x14f3,0x14f3,0x14f3,0x14f3,0x14f3,0x14f3,0x14f3,0x14f3,
+0x14f3,0x14f3,0x14f3,0x14f3,0x14f3,0x14f3,0x14f3,0x14f3,0x14f3,0x14f3,0x14f3,0x14f3,0x14f3,0x14f3,0x14f3,0x14f3,
+0x14f3,0x14f3,0x14f3,0x14f3,0x14f3,0x14f3,0x14f3,0x14f3,0x14f3,0x14f3,0x14f3,0x14f3,0x14f3,0x14f3,0x14f3,0x14f3,
+0x14f3,0x14f3,0x14f3,0x14f3,0x14f3,0x14f3,0x14f3,0x14f3,0x14f3,0x14f3,0x14f3,0x14f3,0x14f3,0x14f3,0x14f3,0x14f3,
+0x14f3,0x14f3,0x14f3,0x14f3,0x14f3,0x14f3,0x14f3,0x14f3,0x14f3,0x14f3,0x14f3,0x14f3,0x14f3,0x14f3,0x14f3,0x14f3,
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+0x1899,0x1899,0x1899,0x1899,0x1899,0x1899,0x1899,0x1899,0x1899,0x1899,0x1899,0x1899,0x1899,0x1899,0x1899,0x1899,
+0x18ba,0x18ba,0x18ba,0x18ba,0x18ba,0x18ba,0x18ba,0x18ba,0x18ba,0x18ba,0x18ba,0x18ba,0x18ba,0x18ba,0x18ba,0x18ba,
+0x18ba,0x18ba,0x18ba,0x18a5,0x18ab,0x18a8,0x18a8,0x18a8,0x18a8,0x18b7,0x18bd,0x18a8,0x18a8,0x18a8,0x18a8,0x18b4,
+0x18ba,0x18a8,0x18a8,0x18a8,0x18a8,0x18a8,0x18a8,0x18b7,0x18b7,0x18a8,0x18a8,0x18ba,0x18ba,0x18ba,0x18ba,0x18ba,
+0x18ba,0x18ba,0x18ba,0x18ba,0x18ba,0x18ba,0x18ba,0x18ba,0x18ba,0x18ba,0x18ba,0x18ba,0x18ba,0x18ba,0x18ba,0x18ba,
+0x18cc,0x18cc,0x18cc,0x18cc,0x18cc,0x18cc,0x18cc,0x18cc,0x18cc,0x18cc,0x18cc,0x18cc,0x18cc,0x18cc,0x18cc,0x18cc,
+0x18cc,0x18cc,0x18cc,0x18cc,0x18cc,0x18cc,0x18cc,0x18cc,0x18cc,0x18cc,0x18cc,0x18cc,0x18cc,0x18cc,0x18cc,0x18cc,
+0x18db,0x18db,0x18db,0x18db,0x18db,0x18db,0x18db,0x18db,0x18db,0x18db,0x18db,0x18db,0x18db,0x18db,0x18db,0x18db,
+0x18db,0x18db,0x18db,0x18db,0x18db,0x18db,0x18db,0x18db,0x18db,0x18db,0x18db,0x18db,0x18db,0x18db,0x18db,0x18db,
+0x18e1,0x18e1,0x18e1,0x18e1,0x18e1,0x18e1,0x18e1,0x18e1,0x18e1,0x18e1,0x18e1,0x18e1,0x18e1,0x18e1,0x18e1,0x18e1,
+0x18e1,0x18e1,0x18e1,0x18e1,0x18e1,0x18e1,0x18e1,0x18e1,0x18e1,0x18e1,0x18e1,0x18e1,0x18e1,0x18e1,0x18e1,0x18e1,
+0,0,0,0
+};
+
+static const UTrie2 propsVectorsTrie={
+    propsVectorsTrie_index,
+    propsVectorsTrie_index+4880,
+    NULL,
+    4880,
+    24356,
+    0xa40,
+    0x1390,
+    0x0,
+    0x0,
+    0x110000,
+    0x7230,
+    NULL, 0, FALSE, FALSE, 0, NULL
+};
+
+static const uint32_t propsVectors[6375]={
+0x67,0,0,0x67,0,0xe00000,0x67,0x80000,0x20,0x867,0,0,0xa67,0,0,0xb67,
+0,0,0xc67,0,0,0xd67,0,0,0xe67,0,0,0x1067,0,0,0x1167,0,
+0,0x1267,0,0,0x1367,0,0,0x1467,0,0,0x1567,0,0,0x1667,0,0,
+0x1767,0,0,0x1867,0,0,0x1967,0,0,0x1a67,0,0,0x1b67,0,0,0x1d67,
+0,0,0x1f67,0,0,0x2067,0,0,0x2267,0,0,0x2367,0,0,0x2467,0,
+0,0x2567,0,0,0x2767,0,0,0x2867,0x80000,0x20,0x2967,0,0,0x2a67,0,0x1600000,
+0x2b67,0,0,0x2d67,0,0,0x3167,0x20000000,0,0x3267,0x20000000,0,0x3a67,0,0,0x3b67,
+0,0,0x3c67,0,0,0x3e67,0,0,0x4067,0,0,0x4167,0,0,0x4367,0,
+0,0x4467,0,0,0x4867,0,0,0x4967,0,0,0x4a67,0,0,0x5067,0,0,
+0x5167,0,0,0x5467,0,0,0x5567,0,0,0x5667,0x80000,0x20,0x5767,0,0,0x5867,
+0,0,0x5967,0,0,0x5b67,0,0,0x5c67,0,0,0x5d67,0,0,0x6067,0x80000,
+0x20,0x6267,0,0,0x6367,0,0,0x6467,0,0,0x6567,0,0,0x6f67,0,0,
+0x7067,0,0,0x7367,0x20000000,0,0x7567,0,0,0x7667,0,0,0x7767,0,0,0x7867,
+0,0,0x7a67,0,0,0x7b67,0,0,0x7c67,0,0,0x7e67,0,0,0x7f67,0,
+0,0x8167,0,0,0x8267,0,0,0x8367,0,0,0x8467,0,0,0x8567,0,0,
+0x8667,0,0,0x8767,0,0,0x8867,0,0,0x8967,0,0,0x8b67,0,0,0x8c67,
+0,0,0x8e67,0x20000000,0,0x8f67,0,0,0x9067,0,0,0x9167,0,0,0x9267,0,
+0,0x9367,0,0,0x9567,0,0,0x9667,0,0,0x9767,0,0,0x9867,0,0,
+0x9967,0,0,0x9a67,0,0,0x9c67,0,0,0x9f67,0,0,0xa167,0,0,0xa367,
+0,0,0xa467,0,0,0xa567,0,0,0xa667,0,0,0xa767,0,0,0xa867,0,
+0,0xa967,0,0,0xaa67,0,0xe00000,0xab67,0,0xe00000,0xac67,0,0,0xad67,0,0,
+0xae67,0,0,0xaf67,0,0,0xb167,0,0,0xb267,0,0,0xb367,0,0,0xb467,
+0,0,0xb567,0,0,0xb767,0,0,0xb867,0,0,0xb967,0,0,0xba67,0,
+0,0xbc67,0,0,0xbd67,0,0,0xbe67,0,0,0xbf67,0,0,0xc067,0,0,
+0xc167,0,0,0xc267,0,0,0xc367,0,0xe00000,0xc467,0,0xe00000,0xc667,0,0,0xc767,
+0,0,0xc867,0,0,0xc967,0,0,0xca67,0,0,0xcc67,0,0xe00000,0xcf67,0,
+0xe00000,0xd067,0,0xe00000,0xd267,0,0,0xd367,0,0,0xd467,0,0,0xd567,0,0,
+0xd667,0,0,0xd867,0,0,0xd967,0,0,0xda67,0,0,0xdb67,0,0,0xdc67,
+0,0,0xdd67,0,0,0xde67,0,0,0xdf67,0,0,0xe067,0,0,0xe167,0,
+0,0xe267,0,0,0xe367,0,0xe00000,0xe467,0,0,0xe567,0,0,0xe667,0,0,
+0xe767,0,0,0xe867,0,0,0xe967,0,0,0xea67,0,0,0xeb67,0,0,0xec67,
+0,0,0xed67,0,0,0xee67,0,0,0xef67,0,0,0xf167,0,0,0xf367,0,
+0,0xf567,0,0,0xf667,0,0,0xf767,0,0,0xf867,0,0,0xf967,0,0,
+0xfa67,0,0xe00000,0xfb67,0,0,0xfc67,0,0,0xfd67,0,0,0xfe67,0,0,0x10167,
+0,0,0x10267,0,0,0x10367,0,0,0x10467,0,0,0x10567,0,0xe00000,0x10667,0,
+0,0x10767,0,0,0x10867,0,0,0x10967,0,0,0x10a67,0,0,0x10b67,0,0,
+0x10c67,0,0,0x10d67,0,0,0x10e67,0,0,0x10f67,0,0,0x11067,0,0,0x11167,
+0,0,0x11367,0,0,0x11467,0,0,0x11567,0,0,0x11667,0,0,0x11767,0,
+0,0x11867,0,0,0xa0067,0,0xe00000,0xa4667,0,0xe00000,0xa4767,0,0xe00000,0xa4f67,0,0xe00000,
+0xa5e67,0,0xe00000,0xa5f67,0,0xe00000,0xac567,0,0xe00000,0xad167,0,0xe00000,0xb0067,0,0xe00000,0xb1267,
+0,0xe00000,0x11000100,0,0x900020,0x11000100,0x40000001,0x440020,0x11000100,0x40000001,0x643020,0x11000100,0x40000001,0xa5a040,0x11000100,0x40000001,
+0x116a8a0,0x11000200,0,0x900020,0x11000200,0x4000001,0xc4000b,0x11000200,0x7c00100,0x220402,0x11000200,0x24000000,0x10200000,0x11000200,0x24000008,0x1710000,
+0x11000200,0x40000001,0x1d3b020,0x11000219,0x7c00100,0x220401,0x11000219,0x7c00100,0x250401,0x11000319,0x7c00100,0x220401,0x11000319,0x7c00100,0x220402,0x11000319,
+0x7c00100,0x250400,0x11000319,0x7c00100,0x250401,0x11000419,0x7c00100,0x220400,0x11000419,0x7c00100,0x220401,0x11000419,0x7c00100,0x220402,0x11000419,0x7c00100,
+0x230400,0x11000419,0x7c00100,0x250400,0x11000419,0x7c00100,0x250401,0x11000419,0x7c00100,0x250402,0x11000519,0x7c00100,0x220400,0x11000519,0x7c00100,0x230400,
+0x11000600,0x4000400,0x200000,0x11000600,0x4000400,0x200002,0x11000600,0x4000400,0x200400,0x11000600,0x7c00500,0x220400,0x11000600,0x7c00500,0x230400,0x11000600,
+0x7c00500,0x530400,0x11000600,0x7c00d00,0x230400,0x11000619,0x7c00500,0x22040f,0x11000800,0x4000010,0x1001401,0x11000800,0x4000400,0x200001,0x11000800,0x6800010,
+0x201001,0x11000800,0x7c00500,0x230401,0x11000807,0x7c00100,0x220400,0x11000807,0x7c00100,0x250400,0x1100080e,0x4000400,0x200000,0x1100080e,0x4000400,0x200002,
+0x1100080e,0x7000500,0x220402,0x1100080e,0x7c00100,0x220400,0x1100080e,0x7c00100,0x220401,0x1100080e,0x7c00100,0x220402,0x1100080e,0x7c00100,0x250400,0x1100080e,
+0x7c00100,0x250401,0x1100080e,0x7c00120,0x220402,0x1100080e,0x7c00120,0x250402,0x11000908,0x4000000,0x200000,0x11000908,0x7c00100,0x220400,0x11000908,0x7c00100,
+0x220401,0x11000908,0x7c00100,0x250400,0x11000908,0x7c00100,0x250401,0x11000a03,0x4000000,0x200000,0x11000a03,0x4000000,0x270000,0x11000a03,0x7c00100,0x220400,
+0x11000a03,0x7c00100,0x220402,0x11000a03,0x7c00100,0x250400,0x11000a03,0x7c00500,0x230400,0x11000b13,0x2802500,0x962460,0x11000b13,0x4000000,0x200000,0x11000b13,
+0x4000000,0x201000,0x11000b13,0x4000000,0x230400,0x11000b13,0x4000002,0x400000,0x11000b13,0x4000010,0x200000,0x11000b13,0x7c00100,0x2633800,0x11000c00,0x80000000,
+0x218960,0x11000c02,0x2802100,0x962460,0x11000c02,0x2802400,0x962460,0x11000c02,0x4000000,0x200000,0x11000c02,0x4000000,0x1329400,0x11000c02,0x4000000,0x1329800,
+0x11000c02,0x4000000,0x1500000,0x11000c02,0x6800000,0x1329800,0x11000c02,0x7c00100,0x230400,0x11000c02,0x7c00100,0x230401,0x11000c02,0x7c00100,0x230402,0x11000c02,
+0x7c00500,0x230400,0x11000c02,0x7d00100,0x230400,0x11000c02,0xc000010,0xb48000,0x11000f0a,0x2802100,0x962460,0x11000f0a,0x2802400,0x962460,0x11000f0a,0x2806400,
+0x962460,0x11000f0a,0x4000000,0x200000,0x11000f0a,0x6800100,0x962540,0x11000f0a,0x7c00100,0x230400,0x11000f0a,0x7c00100,0x230401,0x11001004,0x2802100,0x962460,
+0x11001004,0x2802400,0x962460,0x11001004,0x2806400,0x962460,0x11001004,0x4000000,0x200000,0x11001004,0x4000000,0x1500000,0x11001004,0x6800100,0x962540,0x11001004,
+0x6800100,0x962541,0x11001004,0x7c00100,0x230400,0x11001004,0x7c00100,0x230401,0x11001110,0x2802100,0x962460,0x11001110,0x2802400,0x962460,0x11001110,0x2806400,
+0x962460,0x11001110,0x6800100,0x962540,0x11001110,0x7c00100,0x230400,0x11001110,0x7c00100,0x230401,0x1100120f,0x2802100,0x962460,0x1100120f,0x2802400,0x962460,
+0x1100120f,0x2806400,0x962460,0x1100120f,0x6800100,0x962540,0x1100120f,0x7c00100,0x230400,0x1100131f,0x2802100,0x962460,0x1100131f,0x2802400,0x962460,0x1100131f,
+0x2806400,0x962460,0x1100131f,0x4000000,0x200000,0x1100131f,0x6800000,0x1329800,0x1100131f,0x6800100,0x962540,0x1100131f,0x6800100,0x962541,0x1100131f,0x7c00100,
+0x230400,0x1100131f,0x7c00100,0x230401,0x11001423,0x2802100,0x962460,0x11001423,0x2806400,0x962460,0x11001423,0x6800100,0x962540,0x11001423,0x6800100,0x962541,
+0x11001423,0x7c00100,0x230400,0x11001423,0x7c00100,0x230401,0x11001524,0x2802100,0x962460,0x11001524,0x2802100,0x962461,0x11001524,0x2806400,0x962460,0x11001524,
+0x6800000,0x1329800,0x11001524,0x6800100,0x962540,0x11001524,0x7c00100,0x230400,0x11001615,0x2802100,0x962460,0x11001615,0x2806400,0x962460,0x11001615,0x6800000,
+0x1329800,0x11001615,0x6800100,0x962540,0x11001615,0x6800100,0x962541,0x11001615,0x7c00100,0x230400,0x1100171a,0x2802100,0x962460,0x1100171a,0x2806400,0x962460,
+0x1100171a,0x6800000,0x1329800,0x1100171a,0x6800100,0x962540,0x1100171a,0x6800100,0x962541,0x1100171a,0x7c00100,0x230400,0x11001900,0x4000000,0x1600000,0x11001926,
+0x2802100,0x1862460,0x11001926,0x2802400,0x1862460,0x11001926,0x2806100,0x1862460,0x11001926,0x4000000,0x200000,0x11001926,0x4000010,0x400000,0x11001926,0x6800000,
+0x1329800,0x11001926,0x7800100,0x1830142,0x11001926,0x7c00100,0x1830000,0x11001926,0x7c00900,0x1830000,0x11001926,0x7e00100,0x1830000,0x11001a18,0x2802100,0x1862460,
+0x11001a18,0x2802400,0x1862460,0x11001a18,0x6800000,0x1329800,0x11001a18,0x7800100,0x1830142,0x11001a18,0x7c00100,0x1830000,0x11001a18,0x7c00100,0x1830002,0x11001a18,
+0x7c00900,0x1830000,0x11001a18,0x7e00100,0x1830000,0x11001d0c,0x7c00100,0x230400,0x11001d0c,0x7c00100,0x250400,0x11001e12,0x7c00100,0x2230500,0x11001e12,0x7c00100,
+0x2330520,0x11001e12,0x7c80100,0x2330520,0x11002619,0x7c00100,0x220401,0x11002619,0x7c00100,0x220402,0x11002619,0x7c00100,0x250401,0x1100270e,0x4000400,0x200001,
+0x1100270e,0x4000400,0x200002,0x1100270e,0x4000400,0x500001,0x1100270e,0x7c00100,0x220401,0x1100270e,0x7c00100,0x250401,0x11002800,0x80000,0x918820,0x11002800,
+0x80000,0x1c18020,0x11002800,0x180000,0x918820,0x11002800,0x4000001,0x440001,0x11002800,0x4000001,0x440002,0x11002800,0x4000001,0xc4000b,0x11002800,0x6800000,
+0x201c00,0x11002800,0x6800020,0x201c00,0x11002800,0x24000000,0x200000,0x11002800,0x24000000,0x200002,0x11002800,0x24000000,0x810000,0x11002800,0x24000000,0x1410000,
+0x11002800,0x24000000,0x1500000,0x11002800,0x24000000,0x1500002,0x11002800,0x24000002,0x400000,0x11002800,0x24000006,0xc0000b,0x11002800,0x24000008,0x1410000,0x11002800,
+0x24000008,0x1710000,0x11002800,0x24000020,0x1001400,0x11002800,0x24000020,0x1500002,0x11002800,0x2c000010,0x1248000,0x11002800,0x2c000010,0x11248002,0x11002800,0x40000001,
+0x63b020,0x11002800,0x40080000,0x918820,0x11002801,0x80000,0x2a65620,0x11002801,0x82000,0x962460,0x11002900,0x4000000,0x20000e,0x11002900,0x4000000,0x20000f,
+0x11002900,0x4000020,0x20000e,0x11002900,0x4000020,0x20000f,0x11002900,0x4000020,0x81000e,0x11002900,0x4000020,0x81000f,0x11002900,0x4000020,0x141000e,0x11002900,
+0x4000020,0x141000f,0x11002900,0x4000022,0x20000e,0x11002900,0x4000022,0x20000f,0x11002a00,0x4000000,0x1500000,0x11002a00,0x4000000,0x1600000,0x11002a00,0x4000000,
+0x1600002,0x11002b01,0x2000,0x962460,0x11002b01,0x2802020,0x962460,0x11002c00,0x4000000,0x200000,0x11002c00,0x4000000,0x200002,0x11002c00,0x4000000,0x20000f,
+0x11002c00,0x4000020,0x200000,0x11002c00,0x7c00000,0x200000,0x11002c00,0x7c00020,0x200000,0x11002c00,0x7c00120,0x220405,0x11002c00,0x7c00120,0x230402,0x11002c00,
+0x7c00120,0x250402,0x11002c00,0x7c00120,0x250405,0x11002c19,0x7c00100,0x250400,0x11002c19,0x7c00100,0x250401,0x11002d00,0x4000000,0x100006,0x11002d00,0x4000000,
+0x200006,0x11002d19,0x7c00100,0x220402,0x11002d19,0x7c00100,0x230400,0x11002d19,0x7c00100,0x250402,0x11002e00,0x24000000,0x200000,0x11002e00,0x24000020,0x200000,
+0x11002e00,0x24000020,0x200001,0x11002e00,0x24000020,0x10200000,0x11002f00,0x24000020,0x200000,0x11002f00,0x24000020,0x200001,0x11002f00,0x24000020,0x200002,0x11002f00,
+0x24000020,0xf00000,0x11002f00,0x24000020,0x1600000,0x11002f00,0x24000022,0x1600000,0x11003000,0x24000000,0x200000,0x11003000,0x24000000,0x10200000,0x11003000,0x24000020,
+0x200000,0x11003000,0x24000020,0x810000,0x11003000,0x24000020,0x1410000,0x11003100,0x24000000,0x200000,0x11003200,0x24000000,0x200000,0x11003300,0x4000000,0x100003,
+0x11003400,0x24000000,0x100000,0x11003400,0x24000000,0x200000,0x11003500,0x24000000,0x200000,0x11003600,0x24000000,0x200000,0x11003600,0x24000000,0x10200000,0x11003600,
+0x24000020,0x200000,0x11003700,0x24000000,0x200000,0x11003700,0x24000000,0xe00000,0x11003700,0x24000000,0x10200000,0x11003700,0x24000000,0x10e00000,0x11003700,0x24000000,
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+0x30e00000,0x6140af7a,0x7c00100,0x230400,0x6140af7b,0x6800100,0x962540,0x6140af84,0x7c00100,0x230400,0x6180af7b,0x2802400,0x962460,0x62002a00,0x4000000,0x1600000,
+0x63002800,0x80000,0x918820,0x63c00c11,0x80000,0x918820,0x7000080e,0x7c00100,0x250400,0x70000a03,0x4000000,0x200000,0x70000c00,0x80000000,0x218960,0x70000f0a,
+0x7c00100,0x230400,0x70001004,0x7c00100,0x230400,0x70001524,0x2802100,0x962460,0x70001524,0x7c00100,0x230400,0x70001615,0x2802100,0x962460,0x7000171a,0x2802100,
+0x962460,0x70001821,0x6800000,0x1329800,0x70002320,0x7c00100,0x230400,0x70002a00,0x4000000,0x1500000,0x70002a00,0x4000000,0x1600000,0x70003000,0x24000000,0x200000,
+0x70003000,0x24000000,0x10200000,0x70003800,0x24000000,0xe00000,0x70005201,0x2802400,0x962460,0x7000581e,0x7c00100,0x230400,0x70006108,0x7c00100,0x220400,0x70006108,
+0x7c00100,0x250400,0x70006f30,0x7c00100,0x230400,0x70007300,0x24000000,0x200000,0x70007f0e,0x4000000,0x200000,0x70008301,0x2802100,0x962460,0x70008301,0x2802400,
+0x962460,0x70008e00,0x24000000,0x200000,0x70008e00,0x24000000,0x400000,0x70008e00,0x24000002,0x400000,0x70008e00,0x24000008,0x1410000,0x70008e00,0x24000010,0x400000,
+0x70008e00,0x2c000010,0x448000,0x70009519,0x7c00100,0x220400,0x70009519,0x7c00100,0x230400,0x70009519,0x7c00100,0x250400,0x70009865,0x7c00100,0x230400,0x70009965,
+0x4000010,0x400000,0x70009965,0x7c00100,0x230400,0x7000a008,0x7c00100,0x220400,0x7000a008,0x7c00100,0x250400,0x7000a008,0x7c00500,0x22040f,0x7000a50e,0x4000000,
+0x200000,0x7000b61c,0x2802400,0x1862460,0x7000b61c,0x6800400,0x1862400,0x7000b61c,0x7c00100,0x1830000,0x7000c300,0x4000000,0x100000,0x7000c941,0x2806000,0x962460,
+0x7000cc00,0x4000000,0xe00000,0x7000cd00,0x4000000,0x200000,0x7000cd00,0x4000000,0xe00000,0x7000cd00,0x4000000,0x10200000,0x7000cd00,0x4000000,0x10e00000,0x7000cd00,
+0x4000000,0x10e05200,0x7000cd00,0x4000000,0x928045a0,0x7000cf00,0x4000000,0xe00000,0x7000cf00,0x4000000,0x10e00000,0x7000d202,0x2802100,0x962460,0x7000d202,0x7c00100,
+0x230400,0x7000d997,0x7c00100,0x230400,0x7000d997,0xc000010,0x248000,0x7000dd86,0x2802400,0x962460,0x7000dd86,0x7c00100,0x230400,0x7000dd86,0xc000010,0x448000,
+0x7000de9f,0x4000000,0x200000,0x7000de9f,0x7c00100,0x230400,0x7000e001,0x2000,0x962460,0x7000e001,0x2802400,0x962460,0x7000e187,0x2802000,0x962460,0x7000e187,
+0x2802100,0x962460,0x7000e187,0x4000000,0x200000,0x7000e187,0x7c00100,0x230400,0x7000e187,0xc000010,0x448000,0x7000e288,0x7c00100,0x230400,0x7000e300,0x4000000,
+0x200000,0x7000e489,0x2802100,0x962460,0x7000e489,0x2802400,0x962460,0x7000e489,0x6800100,0x962540,0x7000e489,0x6800100,0x962541,0x7000e489,0x6804400,0x962540,
+0x7000e489,0x7c00100,0x230400,0x7000e489,0x7c00900,0x230400,0x7000e59d,0x2802100,0x962460,0x7000e59d,0x2802400,0x962460,0x7000e59d,0x4000000,0x200000,0x7000e59d,
+0x4000010,0x200000,0x7000e59d,0x6800100,0x962540,0x7000e59d,0x6804400,0x962540,0x7000e59d,0x7c00100,0x230400,0x7000e59d,0xc000010,0x448000,0x7000e691,0x2802100,
+0x962460,0x7000e691,0x2802400,0x962460,0x7000e691,0x2806400,0x962460,0x7000e691,0x6800000,0x1329800,0x7000e691,0x6800100,0x962540,0x7000e691,0x7c00100,0x230400,
+0x7000e700,0x4000400,0x200400,0x7000e70e,0x7c00100,0x220400,0x7000e719,0x7c00100,0x220400,0x7000e719,0x7c00500,0x22040f,0x7000e853,0x7c00100,0x230400,0x7000e9a0,
+0x2802400,0x962460,0x7000e9a0,0x4000000,0x200000,0x7000e9a0,0x4000000,0x500000,0x7000e9a0,0x7c00100,0x230400,0x7000ea79,0x2802400,0x962460,0x7000ea79,0x4000000,
+0x200000,0x7000ea79,0x4000000,0xf00000,0x7000ea79,0x4000010,0x400000,0x7000ea79,0x7c00100,0x230400,0x7000eb8c,0x2802400,0x962460,0x7000eb8c,0x4000000,0x200000,
+0x7000eb8c,0x7c00100,0x230400,0x7000eca3,0x2802100,0x962460,0x7000eca3,0x2806400,0x962460,0x7000eca3,0x4000000,0x200000,0x7000eca3,0x6800000,0x1329800,0x7000eca3,
+0x6800100,0x962540,0x7000eca3,0x7c00100,0x230400,0x7000eca3,0xc000010,0x448000,0x7000ed95,0x6800000,0x1329800,0x7000ed95,0x7c00100,0x230400,0x7000ed95,0xc000010,
+0x448000,0x7000ee1c,0x2802400,0x1862460,0x7000ee1c,0x6800000,0x1329800,0x7000ee1c,0x7c00100,0x1830000,0x7000ee1c,0x7c00900,0x1830000,0x7000ef8f,0x4000000,0x200000,
+0x7000ef8f,0x7c00100,0x230400,0x7000f08e,0x4000000,0x200000,0x7000f08e,0x7c00100,0x230400,0x7000f159,0x2802100,0x962460,0x7000f159,0x7c00100,0x230400,0x7000f200,
+0x4000000,0x200000,0x7000f200,0x4000000,0x1200000,0x7000f200,0x4000000,0x1710000,0x7000f34b,0x2802100,0x962460,0x7000f34b,0x4000000,0x200000,0x7000f34b,0x4000010,
+0x400000,0x7000f34b,0x6800000,0x1329800,0x7000f34b,0x7c00100,0x230400,0x7000f34b,0x7c00900,0x230400,0x7000f34b,0xc000010,0x448000,0x7000f490,0x4000000,0x200000,
+0x7000f490,0x7c00100,0x230400,0x7000f5a5,0x7c00100,0x230400,0x7000f67b,0x4000000,0x200000,0x7000f67b,0x4000010,0x200000,0x7000f67b,0x7c00100,0x230400,0x7000f8a6,
+0x2802100,0x962460,0x7000f8a6,0x2802400,0x962460,0x7000f8a6,0x2806400,0x962460,0x7000f8a6,0x4000000,0x500000,0x7000f8a6,0x4000010,0xb00000,0x7000f8a6,0x4000800,
+0x200000,0x7000f8a6,0x6800100,0x962540,0x7000f8a6,0x6800100,0x962541,0x7000f8a6,0x7c00100,0x230400,0x7000f8a6,0xc000010,0x448000,0x7000f921,0x4000000,0x200000,
+0x7000fa00,0x4000000,0x200000,0x7000fb9e,0x2802100,0x962460,0x7000fb9e,0x2802400,0x962460,0x7000fb9e,0x2806400,0x962460,0x7000fb9e,0x4000000,0x200000,0x7000fb9e,
+0x6800000,0x1329800,0x7000fb9e,0x6800100,0x962540,0x7000fb9e,0x6800100,0x962541,0x7000fb9e,0x7c00100,0x230400,0x7000fc92,0x4000000,0x200000,0x7000fc92,0x6800000,
+0x1329800,0x7000fc92,0x7c00100,0x220400,0x7000fc92,0x7c00100,0x230400,0x7000fc92,0x7c00100,0x250400,0x700acd00,0x4000000,0x30e00000,0x700acd00,0x4000000,0xb28045a0,
+0x700ace00,0x4000000,0x30e00000,0x700acf00,0x4000000,0x30e00000,0x700acf00,0x4000000,0xb28045a0,0x7040dfc0,0x4000000,0x200000,0x7040f7c4,0x80000,0x918820,0x7080af7b,
+0x2802400,0x962460,0x7080dfc0,0x2802400,0x962460,0x70c0e4c2,0x2802100,0x962460,0x70c0e4c2,0x2802400,0x962460,0x70c0e4c2,0x6800100,0x962540,0x8000120f,0x7c00100,
+0x230400,0x80001524,0x7c00100,0x230400,0x8000171a,0x7c00100,0x230400,0x80002006,0x7c00100,0x220400,0x80002006,0x7c00100,0x250400,0x80002a00,0x4000000,0x1500000,
+0x80002d00,0x4000000,0x200000,0x80005208,0x2802400,0x962460,0x80005c00,0x4000000,0x200000,0x80007300,0x24000000,0x200000,0x80009519,0x7c00100,0x220400,0x80009519,
+0x7c00100,0x230400,0x80009519,0x7c00100,0x250400,0x80009865,0x7c00100,0x230400,0x8000a008,0x2802100,0x962460,0x8000b30a,0x4000000,0x500000,0x8000b30a,0x7c00100,
+0x230400,0x8000cd00,0x4000000,0xe00000,0x8000d202,0x2802500,0x962460,0x8000d202,0x7c00100,0x230400,0x8000d68d,0x4000000,0x200000,0x8000d997,0x2802400,0x962460,
+0x8000d997,0x4000000,0x200000,0x8000d997,0x4000000,0x400000,0x8000d997,0x4000000,0x500000,0x8000d997,0x7c00100,0x230400,0x8000d997,0xc000010,0x448000,0x8000e489,
+0x2802100,0x962460,0x8000e489,0x7c00100,0x230400,0x8000e719,0x7c00100,0x220400,0x8000f8a6,0x2802100,0x962460,0x8000f8a6,0x7c00100,0x230400,0x8000f8a6,0xc000010,
+0x448000,0x8000fda1,0x2802100,0x1862460,0x8000fda1,0x2806400,0x1862460,0x8000fda1,0x4000000,0x1800000,0x8000fda1,0x6800000,0x1329800,0x8000fda1,0x6800100,0x1862540,
+0x8000fda1,0x7c00100,0x1830000,0x8000fda1,0xc000010,0x448000,0x8000fe9c,0x7c00100,0x230400,0x8000fe9c,0x7c00100,0x830400,0x8000fe9c,0x7c00100,0x1430400,0x8000ff06,
+0x7c00100,0x220400,0x80010165,0x7c00100,0x230400,0x800102a2,0x4000000,0x200000,0x800102a2,0x7c00100,0x230400,0x800103a4,0x7c00100,0x230400,0x800103a4,0xc000010,
+0x448000,0x8001044c,0x4000000,0x200000,0x8001044c,0x7c00100,0x220400,0x8001044c,0x7c00100,0x250400,0x80010670,0x2802000,0x962460,0x80010670,0x4000000,0x200000,
+0x80010670,0x4000010,0x400000,0x80010670,0xc000010,0x448000,0x800a4711,0x7c40300,0xe30000,0x800acd00,0x4000000,0x30e00000,0x800acd00,0x4000000,0x7a904de0,0x800ace00,
+0x4000000,0x30e00000,0x800acf00,0x4000000,0x30e00000,0x800b0011,0x7c40300,0xe30000,0x800b0500,0x4000000,0x30e00000,0x800b0500,0x4000000,0xb28045a0,0x90001615,0x7c00100,
+0x230400,0x9000171a,0x4000000,0x200000,0x9000171a,0x7c00100,0x230400,0x90003000,0x24000000,0x200000,0x90007f0e,0x4000000,0x200000,0x90008301,0x2802000,0x962460,
+0x90008e00,0x24000000,0x400000,0x90009519,0x7c00100,0x250400,0x9000a16f,0x2802100,0x962460,0x9000d200,0x80000000,0x218960,0x9000d202,0x2802000,0x962460,0x9000d202,
+0x2802100,0x962460,0x9000d202,0x7c00100,0x230400,0x9000e59d,0x2802100,0x962460,0x900107a7,0x2802100,0x962460,0x900107a7,0x2802400,0x962460,0x900107a7,0x2802c00,
+0x962460,0x900107a7,0x4000000,0x1400000,0x900107a7,0x6800000,0x1329800,0x900107a7,0x7c00100,0x220400,0x900107a7,0x7c00100,0x250400,0x900108a8,0x2802100,0x962460,
+0x900108a8,0x2806400,0x962460,0x900108a8,0x4000000,0x200000,0x900108a8,0x4000000,0x400000,0x900108a8,0x4000010,0x400000,0x900108a8,0x6800000,0x1329800,0x900108a8,
+0x6800100,0x962540,0x900108a8,0x7c00100,0x230400,0x900108a8,0xc000010,0x448000,0x90010908,0x7c00100,0x220400,0x90010a38,0x2802100,0x962460,0x90010ca9,0x2802100,
+0x962460,0x90010ca9,0x4000000,0x500000,0x90010ca9,0x4000010,0xb00000,0x90010ca9,0x6800100,0x962540,0x90010ca9,0x7c00100,0x230400,0x90010d1b,0x4000000,0x500000,
+0x90010eaa,0x2802100,0x962460,0x90010eaa,0x2802400,0x962460,0x90010eaa,0x2806400,0x962460,0x90010eaa,0x4000000,0x200000,0x90010eaa,0x4000000,0x400000,0x90010eaa,
+0x4000010,0x400000,0x90010eaa,0x6800000,0x1329800,0x90010eaa,0x6800100,0x962540,0x90010eaa,0x7c00100,0x230400,0x90010eaa,0xc000010,0x448000,0x90010fab,0x7c00100,
+0x220400,0x90010fab,0x7c00100,0x250400,0x9002c300,0x4000000,0x100000,0x900ac400,0x4000000,0xe0000d,0x900acd00,0x4000000,0x30e00000,0x900acd00,0x4000000,0xb28045a0,
+0x900acf00,0x4000000,0x30e00000,0x900b0500,0x4000000,0xe00000,0x900b0500,0x4000000,0x30e00000,0x900b0500,0x4000000,0xb28045a0,0x900b0b9a,0x7c00900,0x1230400,0x900b109a,
+0x7c00300,0xe30000,0x900b119a,0x7c00300,0xe30000,0x90408e06,0x24000000,0x400000,0xa0001004,0x4000000,0x200000,0xa0001004,0x7c00100,0x230400,0xa000120f,0x2802100,
+0x962460,0xa000120f,0x2802400,0x962460,0xa000171a,0x2802100,0x962460,0xa000171a,0x2806400,0x962460,0xa0002a00,0x4000000,0x1600000,0xa0003000,0x24000000,0x200000,
+0xa000581e,0x7c00100,0x230400,0xa0007300,0x24000000,0x200000,0xa0008301,0x2802400,0x962460,0xa0008e00,0x24000000,0x400000,0xa000cf00,0x4000000,0xe00000,0xa0010500,
+0x4000000,0x200000,0xa00114af,0x2802100,0x962460,0xa00114af,0x2802400,0x962460,0xa00114af,0x2806400,0x962460,0xa00114af,0x6800000,0x1329800,0xa00114af,0x7c00100,
+0x230400,0xa00114af,0x7c00100,0x230560,0xa00116b0,0x2802100,0x962460,0xa00116b0,0x2802800,0x962460,0xa00116b0,0x2806400,0x962460,0xa00116b0,0x4000000,0x400000,
+0xa00116b0,0x4000000,0x500000,0xa00116b0,0x4000010,0x400000,0xa00116b0,0x6800100,0x962540,0xa00116b0,0x7c00100,0x230400,0xa00116b0,0x7c00100,0x230560,0xa00116b0,
+0xc000010,0x448000,0xa0011722,0x7c00100,0x230400,0xa00118b1,0x2802000,0x962460,0xa00118b1,0x2802100,0x962460,0xa00118b1,0x2806400,0x962460,0xa00118b1,0x4000000,
+0x200000,0xa00118b1,0x4000000,0x400000,0xa00118b1,0x4000000,0x500000,0xa00118b1,0x6800100,0x962540,0xa00118b1,0x7c00100,0x230400,0xa00118b1,0x7c00100,0x230560,
+0xa00118b1,0xc000010,0x448000,0xa00a4005,0x7c00100,0xe30400,0xa00a4711,0x7c40300,0xe30000,0xa00ac400,0x4000000,0xe00000,0xa00acb14,0x7c00100,0xe30000,0xa00acf00,
+0x4000000,0x30e00000,0xa00b0500,0x4000000,0x30e00000,0xa00b0500,0x4000000,0xb28045a0,0xa00b0b96,0x7c00900,0x1230400,0xa00b1211,0x7c40300,0xe30000,0xa00b1314,0x7c00100,
+0xe30000,0xa00b1596,0x7c00300,0xe30000,0xa040af86,0x6800400,0x962540};
+
+static const int32_t countPropsVectors=6375;
+static const int32_t propsVectorsColumns=3;
+static const uint16_t scriptExtensions[198]={
+0x800e,0x8019,8,0x8059,8,2,8,0x8038,8,6,8,0x8019,3,0x800c,2,0x22,
+0x8025,2,0xe,2,0x22,0x54,0x79,0x7b,0x80a7,2,0x8022,2,0x8025,2,0x1b,4,
+0xa,0xf,0x10,0x15,0x19,0x1a,0x1f,0x23,0x24,0x89,0x8097,4,0xa,0xf,0x10,0x15,
+0x19,0x1a,0x1f,0x23,0x24,0x8089,4,0xa,0xf,0x10,0x15,0x1a,0x1f,0x21,0x23,0x24,
+0x3a,0x89,0x91,0x99,0x9e,0x80a0,4,0xa,0xf,0x10,0x15,0x1a,0x1f,0x21,0x23,0x24,
+0x30,0x3a,0x89,0x91,0x99,0x9e,0x80a0,0xa,0x78,0x80a0,0xa,0x57,4,0x3a,0x8076,4,
+0x5c,0x10,0x80a4,0x10,0x61,0xf,0x809d,0xf,0x65,0x23,0x8089,0x23,0x69,0x1c,0x34,0x8076,
+0x1c,0x6d,0xc,0x8019,0x2a,0x2b,0x2c,0x802d,0x1b,0x805a,0x800a,0xa,0x8089,0xa,0x8097,0xa,
+0x15,0x1a,0x23,0x8024,0xa,0x8015,0x8004,0xa,0x19,0x8089,5,0x11,0x12,0x14,0x16,0x8029,
+5,0x11,0x12,0x14,0x8016,0x8011,5,0x8011,0x11,0x14,0x8016,0xa,0xf,0x10,0x15,0x78,
+0x91,0x99,0x9e,0xa0,0x80a3,0xa,0xf,0x10,0x78,0x91,0x99,0x9e,0xa0,0x80a3,4,0x800a,
+0xa,0xae,0xa,0x8023,0xa,0xb2,0x19,0x1c,0x804f,0x37,0x804e,0x2f,0x31,0x8053,0x2f,0x8031,
+2,0x8007,0x89,0x69,0x8087,0};
+
+static const int32_t indexes[UPROPS_INDEX_COUNT]={0x2962,0x2962,0x2962,0x2962,0x6280,3,0x7b67,0x7bca,0x7bca,0x7bca,0xb18b1,0x2a75631,0,0,0,0};
+
+#endif  // INCLUDED_FROM_UCHAR_C
diff --git a/vendor/icu/src/ucln.h b/vendor/icu/src/ucln.h
new file mode 100644
index 0000000000..05987886e2
--- /dev/null
+++ b/vendor/icu/src/ucln.h
@@ -0,0 +1,91 @@
+// © 2016 and later: Unicode, Inc. and others.
+// License & terms of use: http://www.unicode.org/copyright.html
+/*
+******************************************************************************
+*
+* Copyright (C) 2001-2013, International Business Machines
+*                Corporation and others. All Rights Reserved.
+*
+******************************************************************************
+*   file name:  ucln.h
+*   encoding:   UTF-8
+*   tab size:   8 (not used)
+*   indentation:4
+*
+*   created on: 2001July05
+*   created by: George Rhoten
+*/
+
+#ifndef __UCLN_H__
+#define __UCLN_H__
+
+#include <unicode/utypes.h>
+
+/** These are the functions used to register a library's memory cleanup
+ * functions.  Each library should define a single library register function
+ * to call this API.  In the i18n library, it is ucln_i18n_registerCleanup().
+ *
+ * None of the cleanup functions should use a mutex to clean up an API's
+ * allocated memory because a cleanup function is not meant to be thread safe,
+ * and plenty of data cannot be reference counted in order to make sure that
+ * no one else needs the allocated data.
+ *
+ * In order to make a cleanup function get called when u_cleanup is called,
+ * You should add your function to the library specific cleanup function.
+ * If the cleanup function is not in the common library, the code that
+ * allocates the memory should call the library specific cleanup function.
+ * For instance, in the i18n library, any memory allocated statically must
+ * call ucln_i18n_registerCleanup() from the ucln_in.h header.  These library
+ * cleanup functions are needed in order to prevent a circular dependency
+ * between the common library and any other library.
+ *
+ * The order of the cleanup is very important.  In general, an API that
+ * depends on a second API should be cleaned up before the second API.
+ * For instance, the default converter in ustring depends upon the converter
+ * API.  So the default converter should be closed before the converter API
+ * has its cache flushed.  This will prevent any memory leaks due to
+ * reference counting.
+ *
+ * Please see common/ucln_cmn.{h,c} and i18n/ucln_in.{h,c} for examples.
+ */
+
+/**
+ * Data Type for cleanup function selector. These roughly correspond to libraries.
+ */
+typedef enum ECleanupLibraryType {
+    UCLN_START = -1,
+    UCLN_UPLUG,     /* ICU plugins */
+    UCLN_CUSTOM,    /* Custom is for anyone else. */
+    UCLN_CTESTFW,
+    UCLN_TOOLUTIL,
+    UCLN_LAYOUTEX,
+    UCLN_LAYOUT,
+    UCLN_IO,
+    UCLN_I18N,
+    UCLN_COMMON /* This must be the last one to cleanup. */
+} ECleanupLibraryType;
+
+/**
+ * Data type for cleanup function pointer
+ */
+U_CDECL_BEGIN
+typedef UBool U_CALLCONV cleanupFunc(void);
+typedef void U_CALLCONV initFunc(UErrorCode *);
+U_CDECL_END
+
+/**
+ * Register a cleanup function
+ * @param type which library to register for.
+ * @param func the function pointer
+ */
+U_CAPI void U_EXPORT2 ucln_registerCleanup(ECleanupLibraryType type,
+                                           cleanupFunc *func);
+
+/**
+ * Request cleanup for one specific library.
+ * Not thread safe.
+ * @param type which library to cleanup
+ */
+U_CAPI void U_EXPORT2 ucln_cleanupOne(ECleanupLibraryType type);
+
+#endif
diff --git a/vendor/icu/src/ucln_cmn.h b/vendor/icu/src/ucln_cmn.h
new file mode 100644
index 0000000000..d2c81ec34d
--- /dev/null
+++ b/vendor/icu/src/ucln_cmn.h
@@ -0,0 +1,73 @@
+// © 2016 and later: Unicode, Inc. and others.
+// License & terms of use: http://www.unicode.org/copyright.html
+/*
+******************************************************************************
+* Copyright (C) 2001-2016, International Business Machines
+*                Corporation and others. All Rights Reserved.
+******************************************************************************
+*   file name:  ucln_cmn.h
+*   encoding:   UTF-8
+*   tab size:   8 (not used)
+*   indentation:4
+*
+*   created on: 2001July05
+*   created by: George Rhoten
+*/
+
+#ifndef __UCLN_CMN_H__
+#define __UCLN_CMN_H__
+
+#include <unicode/utypes.h>
+#include "ucln.h"
+
+/* These are the cleanup functions for various APIs. */
+/* @return true if cleanup complete successfully.*/
+U_CFUNC UBool umtx_cleanup(void);
+
+U_CFUNC UBool utrace_cleanup(void);
+
+U_CFUNC UBool ucln_lib_cleanup(void);
+
+/*
+Please keep the order of enums declared in same order
+as the cleanup functions are suppose to be called. */
+typedef enum ECleanupCommonType {
+    UCLN_COMMON_START = -1,
+    UCLN_COMMON_USPREP,
+    UCLN_COMMON_BREAKITERATOR,
+    UCLN_COMMON_RBBI,
+    UCLN_COMMON_SERVICE,
+    UCLN_COMMON_LOCALE_KEY_TYPE,
+    UCLN_COMMON_LOCALE,
+    UCLN_COMMON_LOCALE_AVAILABLE,
+    UCLN_COMMON_ULOC,
+    UCLN_COMMON_CURRENCY,
+    UCLN_COMMON_LOADED_NORMALIZER2,
+    UCLN_COMMON_NORMALIZER2,
+    UCLN_COMMON_USET,
+    UCLN_COMMON_UNAMES,
+    UCLN_COMMON_UPROPS,
+    UCLN_COMMON_UCNV,
+    UCLN_COMMON_UCNV_IO,
+    UCLN_COMMON_UDATA,
+    UCLN_COMMON_PUTIL,
+    UCLN_COMMON_LIST_FORMATTER,
+    UCLN_COMMON_UINIT,
+
+    /*
+       Unified caches caches collation stuff. Collation data structures
+       contain resource bundles which means that unified cache cleanup
+       must happen before resource bundle clean up.
+    */
+    UCLN_COMMON_UNIFIED_CACHE,
+    UCLN_COMMON_URES,
+    UCLN_COMMON_COUNT /* This must be last */
+} ECleanupCommonType;
+
+/* Main library cleanup registration function. */
+/* See common/ucln.h for details on adding a cleanup function. */
+/* Note: the global mutex must not be held when calling this function. */
+U_CFUNC void U_EXPORT2 ucln_common_registerCleanup(ECleanupCommonType type,
+                                                   cleanupFunc *func);
+
+#endif
diff --git a/vendor/icu/src/ucmndata.h b/vendor/icu/src/ucmndata.h
new file mode 100644
index 0000000000..64f4781868
--- /dev/null
+++ b/vendor/icu/src/ucmndata.h
@@ -0,0 +1,117 @@
+// © 2016 and later: Unicode, Inc. and others.
+// License & terms of use: http://www.unicode.org/copyright.html
+/*
+******************************************************************************
+*
+*   Copyright (C) 1999-2011, International Business Machines
+*   Corporation and others.  All Rights Reserved.
+*
+******************************************************************************/
+
+
+/*----------------------------------------------------------------------------------
+ *
+ *   UCommonData   An abstract interface for dealing with ICU Common Data Files.
+ *                 ICU Common Data Files are a grouping of a number of individual
+ *                 data items (resources, converters, tables, anything) into a
+ *                 single file or dll.  The combined format includes a table of
+ *                 contents for locating the individual items by name.
+ *
+ *                 Two formats for the table of contents are supported, which is
+ *                 why there is an abstract inteface involved.
+ *
+ *                 These functions are part of the ICU internal implementation, and
+ *                 are not inteded to be used directly by applications.
+ */
+
+#ifndef __UCMNDATA_H__
+#define __UCMNDATA_H__
+
+#include <unicode/udata.h>
+#include "umapfile.h"
+
+
+#define COMMON_DATA_NAME U_ICUDATA_NAME
+
+typedef struct  {
+    uint16_t    headerSize;
+    uint8_t     magic1;
+    uint8_t     magic2;
+} MappedData;
+
+
+typedef struct  {
+    MappedData  dataHeader;
+    UDataInfo   info;
+} DataHeader;
+
+typedef struct {
+    uint32_t nameOffset;
+    uint32_t dataOffset;
+} UDataOffsetTOCEntry;
+
+typedef struct {
+    uint32_t count;
+    /**
+     * Variable-length array declared with length 1 to disable bounds checkers.
+     * The actual array length is in the count field.
+     */
+    UDataOffsetTOCEntry entry[1];
+} UDataOffsetTOC;
+
+/**
+ * Get the header size from a const DataHeader *udh.
+ * Handles opposite-endian data.
+ *
+ * @internal
+ */
+U_CFUNC uint16_t
+udata_getHeaderSize(const DataHeader *udh);
+
+/**
+ * Get the UDataInfo.size from a const UDataInfo *info.
+ * Handles opposite-endian data.
+ *
+ * @internal
+ */
+U_CFUNC uint16_t
+udata_getInfoSize(const UDataInfo *info);
+
+U_CDECL_BEGIN
+/*
+ *  "Virtual" functions for data lookup.
+ *  To call one, given a UDataMemory *p, the code looks like this:
+ *     p->vFuncs.Lookup(p, tocEntryName, pErrorCode);
+ *          (I sure do wish this was written in C++, not C)
+ */
+
+typedef const DataHeader *
+(U_CALLCONV * LookupFn)(const UDataMemory *pData,
+                        const char *tocEntryName,
+                        int32_t *pLength,
+                        UErrorCode *pErrorCode);
+
+typedef uint32_t
+(U_CALLCONV * NumEntriesFn)(const UDataMemory *pData);
+
+U_CDECL_END
+
+typedef struct {
+    LookupFn      Lookup;
+    NumEntriesFn  NumEntries; 
+} commonDataFuncs;
+
+
+/*
+ *  Functions to check whether a UDataMemory refers to memory containing 
+ *     a recognizable header and table of contents a Common Data Format
+ *
+ *     If a valid header and TOC are found,
+ *         set the CommonDataFuncs function dispatch vector in the UDataMemory
+ *             to point to the right functions for the TOC type.
+ *     otherwise
+ *         set an errorcode.
+ */
+U_CFUNC void udata_checkCommonData(UDataMemory *pData, UErrorCode *pErrorCode);
+
+#endif
diff --git a/vendor/icu/src/udatamem.h b/vendor/icu/src/udatamem.h
new file mode 100644
index 0000000000..bfdfdb32f4
--- /dev/null
+++ b/vendor/icu/src/udatamem.h
@@ -0,0 +1,61 @@
+// © 2016 and later: Unicode, Inc. and others.
+// License & terms of use: http://www.unicode.org/copyright.html
+/*
+******************************************************************************
+*
+*   Copyright (C) 1999-2010, International Business Machines
+*   Corporation and others.  All Rights Reserved.
+*
+******************************************************************************/
+
+
+/*----------------------------------------------------------------------------------
+ *
+ *  UDataMemory     A class-like struct that serves as a handle to a piece of memory
+ *                  that contains some ICU data (resource, converters, whatever.)
+ *
+ *                  When an application opens ICU data (with udata_open, for example,
+ *                  a UDataMemory * is returned.
+ *
+ *----------------------------------------------------------------------------------*/
+#ifndef __UDATAMEM_H__
+#define __UDATAMEM_H__
+
+#include <unicode/udata.h>
+#include "ucmndata.h"
+
+struct UDataMemory {
+    const commonDataFuncs  *vFuncs;      /* Function Pointers for accessing TOC             */
+
+    const DataHeader *pHeader;     /* Header of the memory being described by this    */
+                                   /*   UDataMemory object.                           */
+    const void       *toc;         /* For common memory, table of contents for        */
+                                   /*   the pieces within.                            */
+    UBool             heapAllocated;  /* True if this UDataMemory Object is on the    */
+                                   /*  heap and thus needs to be deleted when closed. */
+
+    void             *mapAddr;     /* For mapped or allocated memory, the start addr. */
+                                   /* Only non-null if a close operation should unmap */
+                                   /*  the associated data.                           */
+    void             *map;         /* Handle, or other data, OS dependent.            */
+                                   /* Only non-null if a close operation should unmap */
+                                   /*  the associated data, and additional info       */
+                                   /*   beyond the mapAddr is needed to do that.      */
+    int32_t           length;      /* Length of the data in bytes; -1 if unknown.     */
+};
+
+U_CFUNC UDataMemory *UDataMemory_createNewInstance(UErrorCode *pErr);
+U_CFUNC void         UDatamemory_assign  (UDataMemory *dest, UDataMemory *source);
+U_CFUNC void         UDataMemory_init    (UDataMemory *This);
+U_CFUNC UBool        UDataMemory_isLoaded(const UDataMemory *This);
+U_CFUNC void         UDataMemory_setData (UDataMemory *This, const void *dataAddr);
+
+U_CFUNC const DataHeader *UDataMemory_normalizeDataPointer(const void *p);
+
+U_CAPI int32_t U_EXPORT2
+udata_getLength(const UDataMemory *pData);
+
+U_CAPI const void * U_EXPORT2
+udata_getRawMemory(const UDataMemory *pData);
+
+#endif
diff --git a/vendor/icu/src/udataswp.cpp b/vendor/icu/src/udataswp.cpp
new file mode 100644
index 0000000000..a808144fdd
--- /dev/null
+++ b/vendor/icu/src/udataswp.cpp
@@ -0,0 +1,473 @@
+// © 2016 and later: Unicode, Inc. and others.
+// License & terms of use: http://www.unicode.org/copyright.html
+/*
+*******************************************************************************
+*
+*   Copyright (C) 2003-2014, International Business Machines
+*   Corporation and others.  All Rights Reserved.
+*
+*******************************************************************************
+*   file name:  udataswp.c
+*   encoding:   UTF-8
+*   tab size:   8 (not used)
+*   indentation:4
+*
+*   created on: 2003jun05
+*   created by: Markus W. Scherer
+*
+*   Definitions for ICU data transformations for different platforms,
+*   changing between big- and little-endian data and/or between
+*   charset families (ASCII<->EBCDIC).
+*/
+
+#include <stdarg.h>
+#include <unicode/utypes.h>
+#include <unicode/udata.h> /* UDataInfo */
+#include "ucmndata.h" /* DataHeader */
+#include "cmemory.h"
+#include "udataswp.h"
+
+/* swapping primitives ------------------------------------------------------ */
+
+static int32_t U_CALLCONV
+uprv_swapArray16(const UDataSwapper *ds,
+                 const void *inData, int32_t length, void *outData,
+                 UErrorCode *pErrorCode) {
+    const uint16_t *p;
+    uint16_t *q;
+    int32_t count;
+    uint16_t x;
+
+    if(pErrorCode==NULL || U_FAILURE(*pErrorCode)) {
+        return 0;
+    }
+    if(ds==NULL || inData==NULL || length<0 || (length&1)!=0 || outData==NULL) {
+        *pErrorCode=U_ILLEGAL_ARGUMENT_ERROR;
+        return 0;
+    }
+
+    /* setup and swapping */
+    p=(const uint16_t *)inData;
+    q=(uint16_t *)outData;
+    count=length/2;
+    while(count>0) {
+        x=*p++;
+        *q++=(uint16_t)((x<<8)|(x>>8));
+        --count;
+    }
+
+    return length;
+}
+
+static int32_t U_CALLCONV
+uprv_copyArray16(const UDataSwapper *ds,
+                 const void *inData, int32_t length, void *outData,
+                 UErrorCode *pErrorCode) {
+    if(pErrorCode==NULL || U_FAILURE(*pErrorCode)) {
+        return 0;
+    }
+    if(ds==NULL || inData==NULL || length<0 || (length&1)!=0 || outData==NULL) {
+        *pErrorCode=U_ILLEGAL_ARGUMENT_ERROR;
+        return 0;
+    }
+
+    if(length>0 && inData!=outData) {
+        uprv_memcpy(outData, inData, length);
+    }
+    return length;
+}
+
+static int32_t U_CALLCONV
+uprv_swapArray32(const UDataSwapper *ds,
+                 const void *inData, int32_t length, void *outData,
+                 UErrorCode *pErrorCode) {
+    const uint32_t *p;
+    uint32_t *q;
+    int32_t count;
+    uint32_t x;
+
+    if(pErrorCode==NULL || U_FAILURE(*pErrorCode)) {
+        return 0;
+    }
+    if(ds==NULL || inData==NULL || length<0 || (length&3)!=0 || outData==NULL) {
+        *pErrorCode=U_ILLEGAL_ARGUMENT_ERROR;
+        return 0;
+    }
+
+    /* setup and swapping */
+    p=(const uint32_t *)inData;
+    q=(uint32_t *)outData;
+    count=length/4;
+    while(count>0) {
+        x=*p++;
+        *q++=(uint32_t)((x<<24)|((x<<8)&0xff0000)|((x>>8)&0xff00)|(x>>24));
+        --count;
+    }
+
+    return length;
+}
+
+static int32_t U_CALLCONV
+uprv_copyArray32(const UDataSwapper *ds,
+                 const void *inData, int32_t length, void *outData,
+                 UErrorCode *pErrorCode) {
+    if(pErrorCode==NULL || U_FAILURE(*pErrorCode)) {
+        return 0;
+    }
+    if(ds==NULL || inData==NULL || length<0 || (length&3)!=0 || outData==NULL) {
+        *pErrorCode=U_ILLEGAL_ARGUMENT_ERROR;
+        return 0;
+    }
+
+    if(length>0 && inData!=outData) {
+        uprv_memcpy(outData, inData, length);
+    }
+    return length;
+}
+
+static int32_t U_CALLCONV
+uprv_swapArray64(const UDataSwapper *ds,
+                 const void *inData, int32_t length, void *outData,
+                 UErrorCode *pErrorCode) {
+    const uint64_t *p;
+    uint64_t *q;
+    int32_t count;
+
+    if(pErrorCode==NULL || U_FAILURE(*pErrorCode)) {
+        return 0;
+    }
+    if(ds==NULL || inData==NULL || length<0 || (length&7)!=0 || outData==NULL) {
+        *pErrorCode=U_ILLEGAL_ARGUMENT_ERROR;
+        return 0;
+    }
+
+    /* setup and swapping */
+    p=(const uint64_t *)inData;
+    q=(uint64_t *)outData;
+    count=length/8;
+    while(count>0) {
+        uint64_t x=*p++;
+        x=(x<<56)|((x&0xff00)<<40)|((x&0xff0000)<<24)|((x&0xff000000)<<8)|
+            ((x>>8)&0xff000000)|((x>>24)&0xff0000)|((x>>40)&0xff00)|(x>>56);
+        *q++=x;
+        --count;
+    }
+
+    return length;
+}
+
+static int32_t U_CALLCONV
+uprv_copyArray64(const UDataSwapper *ds,
+                 const void *inData, int32_t length, void *outData,
+                 UErrorCode *pErrorCode) {
+    if(pErrorCode==NULL || U_FAILURE(*pErrorCode)) {
+        return 0;
+    }
+    if(ds==NULL || inData==NULL || length<0 || (length&7)!=0 || outData==NULL) {
+        *pErrorCode=U_ILLEGAL_ARGUMENT_ERROR;
+        return 0;
+    }
+
+    if(length>0 && inData!=outData) {
+        uprv_memcpy(outData, inData, length);
+    }
+    return length;
+}
+
+static uint16_t U_CALLCONV
+uprv_readSwapUInt16(uint16_t x) {
+    return (uint16_t)((x<<8)|(x>>8));
+}
+
+static uint16_t U_CALLCONV
+uprv_readDirectUInt16(uint16_t x) {
+    return x;
+}
+
+static uint32_t U_CALLCONV
+uprv_readSwapUInt32(uint32_t x) {
+    return (uint32_t)((x<<24)|((x<<8)&0xff0000)|((x>>8)&0xff00)|(x>>24));
+}
+
+static uint32_t U_CALLCONV
+uprv_readDirectUInt32(uint32_t x) {
+    return x;
+}
+
+static void U_CALLCONV
+uprv_writeSwapUInt16(uint16_t *p, uint16_t x) {
+    *p=(uint16_t)((x<<8)|(x>>8));
+}
+
+static void U_CALLCONV
+uprv_writeDirectUInt16(uint16_t *p, uint16_t x) {
+    *p=x;
+}
+
+static void U_CALLCONV
+uprv_writeSwapUInt32(uint32_t *p, uint32_t x) {
+    *p=(uint32_t)((x<<24)|((x<<8)&0xff0000)|((x>>8)&0xff00)|(x>>24));
+}
+
+static void U_CALLCONV
+uprv_writeDirectUInt32(uint32_t *p, uint32_t x) {
+    *p=x;
+}
+
+U_CAPI int16_t U_EXPORT2
+udata_readInt16(const UDataSwapper *ds, int16_t x) {
+    return (int16_t)ds->readUInt16((uint16_t)x);
+}
+
+U_CAPI int32_t U_EXPORT2
+udata_readInt32(const UDataSwapper *ds, int32_t x) {
+    return (int32_t)ds->readUInt32((uint32_t)x);
+}
+
+/**
+ * Swap a block of invariant, NUL-terminated strings, but not padding
+ * bytes after the last string.
+ * @internal
+ */
+U_CAPI int32_t U_EXPORT2
+udata_swapInvStringBlock(const UDataSwapper *ds,
+                         const void *inData, int32_t length, void *outData,
+                         UErrorCode *pErrorCode) {
+    const char *inChars;
+    int32_t stringsLength;
+
+    if(pErrorCode==NULL || U_FAILURE(*pErrorCode)) {
+        return 0;
+    }
+    if(ds==NULL || inData==NULL || length<0 || (length>0 && outData==NULL)) {
+        *pErrorCode=U_ILLEGAL_ARGUMENT_ERROR;
+        return 0;
+    }
+
+    /* reduce the strings length to not include bytes after the last NUL */
+    inChars=(const char *)inData;
+    stringsLength=length;
+    while(stringsLength>0 && inChars[stringsLength-1]!=0) {
+        --stringsLength;
+    }
+
+    /* swap up to the last NUL */
+    ds->swapInvChars(ds, inData, stringsLength, outData, pErrorCode);
+
+    /* copy the bytes after the last NUL */
+    if(inData!=outData && length>stringsLength) {
+        uprv_memcpy((char *)outData+stringsLength, inChars+stringsLength, length-stringsLength);
+    }
+
+    /* return the length including padding bytes */
+    if(U_SUCCESS(*pErrorCode)) {
+        return length;
+    } else {
+        return 0;
+    }
+}
+
+U_CAPI void U_EXPORT2
+udata_printError(const UDataSwapper *ds,
+                 const char *fmt,
+                 ...) {
+    va_list args;
+
+    if(ds->printError!=NULL) {
+        va_start(args, fmt);
+        ds->printError(ds->printErrorContext, fmt, args);
+        va_end(args);
+    }
+}
+
+/* swap a data header ------------------------------------------------------- */
+
+U_CAPI int32_t U_EXPORT2
+udata_swapDataHeader(const UDataSwapper *ds,
+                     const void *inData, int32_t length, void *outData,
+                     UErrorCode *pErrorCode) {
+    const DataHeader *pHeader;
+    uint16_t headerSize, infoSize;
+
+    /* argument checking */
+    if(pErrorCode==NULL || U_FAILURE(*pErrorCode)) {
+        return 0;
+    }
+    if(ds==NULL || inData==NULL || length<-1 || (length>0 && outData==NULL)) {
+        *pErrorCode=U_ILLEGAL_ARGUMENT_ERROR;
+        return 0;
+    }
+
+    /* check minimum length and magic bytes */
+    pHeader=(const DataHeader *)inData;
+    if( (length>=0 && length<(int32_t)sizeof(DataHeader)) ||
+        pHeader->dataHeader.magic1!=0xda ||
+        pHeader->dataHeader.magic2!=0x27 ||
+        pHeader->info.sizeofUChar!=2
+    ) {
+        udata_printError(ds, "udata_swapDataHeader(): initial bytes do not look like ICU data\n");
+        *pErrorCode=U_UNSUPPORTED_ERROR;
+        return 0;
+    }
+
+    headerSize=ds->readUInt16(pHeader->dataHeader.headerSize);
+    infoSize=ds->readUInt16(pHeader->info.size);
+
+    if( headerSize<sizeof(DataHeader) ||
+        infoSize<sizeof(UDataInfo) ||
+        headerSize<(sizeof(pHeader->dataHeader)+infoSize) ||
+        (length>=0 && length<headerSize)
+    ) {
+        udata_printError(ds, "udata_swapDataHeader(): header size mismatch - headerSize %d infoSize %d length %d\n",
+                         headerSize, infoSize, length);
+        *pErrorCode=U_INDEX_OUTOFBOUNDS_ERROR;
+        return 0;
+    }
+
+    if(length>0) {
+        DataHeader *outHeader;
+        const char *s;
+        int32_t maxLength;
+
+        /* Most of the fields are just bytes and need no swapping. */
+        if(inData!=outData) {
+            uprv_memcpy(outData, inData, headerSize);
+        }
+        outHeader=(DataHeader *)outData;
+
+        outHeader->info.isBigEndian = ds->outIsBigEndian;
+        outHeader->info.charsetFamily = ds->outCharset;
+
+        /* swap headerSize */
+        ds->swapArray16(ds, &pHeader->dataHeader.headerSize, 2, &outHeader->dataHeader.headerSize, pErrorCode);
+
+        /* swap UDataInfo size and reservedWord */
+        ds->swapArray16(ds, &pHeader->info.size, 4, &outHeader->info.size, pErrorCode);
+
+        /* swap copyright statement after the UDataInfo */
+        infoSize+=sizeof(pHeader->dataHeader);
+        s=(const char *)inData+infoSize;
+        maxLength=headerSize-infoSize;
+        /* get the length of the string */
+        for(length=0; length<maxLength && s[length]!=0; ++length) {}
+        /* swap the string contents */
+        ds->swapInvChars(ds, s, length, (char *)outData+infoSize, pErrorCode);
+    }
+
+    return headerSize;
+}
+
+/* API functions ------------------------------------------------------------ */
+
+U_CAPI UDataSwapper * U_EXPORT2
+udata_openSwapper(UBool inIsBigEndian, uint8_t inCharset,
+                  UBool outIsBigEndian, uint8_t outCharset,
+                  UErrorCode *pErrorCode) {
+    UDataSwapper *swapper;
+
+    if(pErrorCode==NULL || U_FAILURE(*pErrorCode)) {
+        return NULL;
+    }
+    if(inCharset>U_EBCDIC_FAMILY || outCharset>U_EBCDIC_FAMILY) {
+        *pErrorCode=U_ILLEGAL_ARGUMENT_ERROR;
+        return NULL;
+    }
+
+    /* allocate the swapper */
+    swapper=(UDataSwapper *)uprv_malloc(sizeof(UDataSwapper));
+    if(swapper==NULL) {
+        *pErrorCode=U_MEMORY_ALLOCATION_ERROR;
+        return NULL;
+    }
+    uprv_memset(swapper, 0, sizeof(UDataSwapper));
+
+    /* set values and functions pointers according to in/out parameters */
+    swapper->inIsBigEndian=inIsBigEndian;
+    swapper->inCharset=inCharset;
+    swapper->outIsBigEndian=outIsBigEndian;
+    swapper->outCharset=outCharset;
+
+    swapper->readUInt16= inIsBigEndian==U_IS_BIG_ENDIAN ? uprv_readDirectUInt16 : uprv_readSwapUInt16;
+    swapper->readUInt32= inIsBigEndian==U_IS_BIG_ENDIAN ? uprv_readDirectUInt32 : uprv_readSwapUInt32;
+
+    swapper->writeUInt16= outIsBigEndian==U_IS_BIG_ENDIAN ? uprv_writeDirectUInt16 : uprv_writeSwapUInt16;
+    swapper->writeUInt32= outIsBigEndian==U_IS_BIG_ENDIAN ? uprv_writeDirectUInt32 : uprv_writeSwapUInt32;
+
+    swapper->compareInvChars= outCharset==U_ASCII_FAMILY ? uprv_compareInvAscii : uprv_compareInvEbcdic;
+
+    if(inIsBigEndian==outIsBigEndian) {
+        swapper->swapArray16=uprv_copyArray16;
+        swapper->swapArray32=uprv_copyArray32;
+        swapper->swapArray64=uprv_copyArray64;
+    } else {
+        swapper->swapArray16=uprv_swapArray16;
+        swapper->swapArray32=uprv_swapArray32;
+        swapper->swapArray64=uprv_swapArray64;
+    }
+
+    if(inCharset==U_ASCII_FAMILY) {
+        swapper->swapInvChars= outCharset==U_ASCII_FAMILY ? uprv_copyAscii : uprv_ebcdicFromAscii;
+    } else /* U_EBCDIC_FAMILY */ {
+        swapper->swapInvChars= outCharset==U_EBCDIC_FAMILY ? uprv_copyEbcdic : uprv_asciiFromEbcdic;
+    }
+
+    return swapper;
+}
+
+U_CAPI UDataSwapper * U_EXPORT2
+udata_openSwapperForInputData(const void *data, int32_t length,
+                              UBool outIsBigEndian, uint8_t outCharset,
+                              UErrorCode *pErrorCode) {
+    const DataHeader *pHeader;
+    uint16_t headerSize, infoSize;
+    UBool inIsBigEndian;
+    int8_t inCharset;
+
+    if(pErrorCode==NULL || U_FAILURE(*pErrorCode)) {
+        return NULL;
+    }
+    if( data==NULL ||
+        (length>=0 && length<(int32_t)sizeof(DataHeader)) ||
+        outCharset>U_EBCDIC_FAMILY
+    ) {
+        *pErrorCode=U_ILLEGAL_ARGUMENT_ERROR;
+        return NULL;
+    }
+
+    pHeader=(const DataHeader *)data;
+    if( (length>=0 && length<(int32_t)sizeof(DataHeader)) ||
+        pHeader->dataHeader.magic1!=0xda ||
+        pHeader->dataHeader.magic2!=0x27 ||
+        pHeader->info.sizeofUChar!=2
+    ) {
+        *pErrorCode=U_UNSUPPORTED_ERROR;
+        return 0;
+    }
+
+    inIsBigEndian=(UBool)pHeader->info.isBigEndian;
+    inCharset=pHeader->info.charsetFamily;
+
+    if(inIsBigEndian==U_IS_BIG_ENDIAN) {
+        headerSize=pHeader->dataHeader.headerSize;
+        infoSize=pHeader->info.size;
+    } else {
+        headerSize=uprv_readSwapUInt16(pHeader->dataHeader.headerSize);
+        infoSize=uprv_readSwapUInt16(pHeader->info.size);
+    }
+
+    if( headerSize<sizeof(DataHeader) ||
+        infoSize<sizeof(UDataInfo) ||
+        headerSize<(sizeof(pHeader->dataHeader)+infoSize) ||
+        (length>=0 && length<headerSize)
+    ) {
+        *pErrorCode=U_UNSUPPORTED_ERROR;
+        return 0;
+    }
+
+    return udata_openSwapper(inIsBigEndian, inCharset, outIsBigEndian, outCharset, pErrorCode);
+}
+
+U_CAPI void U_EXPORT2
+udata_closeSwapper(UDataSwapper *ds) {
+    uprv_free(ds);
+}
diff --git a/vendor/icu/src/udataswp.h b/vendor/icu/src/udataswp.h
new file mode 100644
index 0000000000..bc47679e6c
--- /dev/null
+++ b/vendor/icu/src/udataswp.h
@@ -0,0 +1,367 @@
+// © 2016 and later: Unicode, Inc. and others.
+// License & terms of use: http://www.unicode.org/copyright.html
+/*
+*******************************************************************************
+*
+*   Copyright (C) 2003-2014, International Business Machines
+*   Corporation and others.  All Rights Reserved.
+*
+*******************************************************************************
+*   file name:  udataswp.h
+*   encoding:   UTF-8
+*   tab size:   8 (not used)
+*   indentation:4
+*
+*   created on: 2003jun05
+*   created by: Markus W. Scherer
+*
+*   Definitions for ICU data transformations for different platforms,
+*   changing between big- and little-endian data and/or between
+*   charset families (ASCII<->EBCDIC).
+*/
+
+#ifndef __UDATASWP_H__
+#define __UDATASWP_H__
+
+#include <stdarg.h>
+#include <unicode/utypes.h>
+
+/* forward declaration */
+
+U_CDECL_BEGIN
+
+struct UDataSwapper;
+typedef struct UDataSwapper UDataSwapper;
+
+/**
+ * Function type for data transformation.
+ * Transforms data, or just returns the length of the data if
+ * the input length is -1.
+ * Swap functions assume that their data pointers are aligned properly.
+ *
+ * Quick implementation outline:
+ * (best to copy and adapt and existing swapper implementation)
+ * check that the data looks like the expected format
+ * if(length<0) {
+ *   preflight:
+ *   never dereference outData
+ *   read inData and determine the data size
+ *   assume that inData is long enough for this
+ * } else {
+ *   outData can be NULL if length==0
+ *   inData==outData (in-place swapping) possible but not required!
+ *   verify that length>=(actual size)
+ *   if there is a chance that not every byte up to size is reached
+ *     due to padding etc.:
+ *   if(inData!=outData) {
+ *     memcpy(outData, inData, actual size);
+ *   }
+ *   swap contents
+ * }
+ * return actual size
+ *
+ * Further implementation notes:
+ * - read integers from inData before swapping them
+ *   because in-place swapping can make them unreadable
+ * - compareInvChars compares a local Unicode string with already-swapped
+ *   output charset strings
+ *
+ * @param ds Pointer to UDataSwapper containing global data about the
+ *           transformation and function pointers for handling primitive
+ *           types.
+ * @param inData Pointer to the input data to be transformed or examined.
+ * @param length Length of the data, counting bytes. May be -1 for preflighting.
+ *               If length>=0, then transform the data.
+ *               If length==-1, then only determine the length of the data.
+ *               The length cannot be determined from the data itself for all
+ *               types of data (e.g., not for simple arrays of integers).
+ * @param outData Pointer to the output data buffer.
+ *                If length>=0 (transformation), then the output buffer must
+ *                have a capacity of at least length.
+ *                If length==-1, then outData will not be used and can be NULL.
+ * @param pErrorCode ICU UErrorCode parameter, must not be NULL and must
+ *                   fulfill U_SUCCESS on input.
+ * @return The actual length of the data.
+ *
+ * @see UDataSwapper
+ * @internal ICU 2.8
+ */
+typedef int32_t U_CALLCONV
+UDataSwapFn(const UDataSwapper *ds,
+            const void *inData, int32_t length, void *outData,
+            UErrorCode *pErrorCode);
+
+/**
+ * Convert one uint16_t from input to platform endianness.
+ * @internal ICU 2.8
+ */
+typedef uint16_t U_CALLCONV
+UDataReadUInt16(uint16_t x);
+
+/**
+ * Convert one uint32_t from input to platform endianness.
+ * @internal ICU 2.8
+ */
+typedef uint32_t U_CALLCONV
+UDataReadUInt32(uint32_t x);
+
+/**
+ * Convert one uint16_t from platform to input endianness.
+ * @internal ICU 2.8
+ */
+typedef void U_CALLCONV
+UDataWriteUInt16(uint16_t *p, uint16_t x);
+
+/**
+ * Convert one uint32_t from platform to input endianness.
+ * @internal ICU 2.8
+ */
+typedef void U_CALLCONV
+UDataWriteUInt32(uint32_t *p, uint32_t x);
+
+/**
+ * Compare invariant-character strings, one in the output data and the
+ * other one caller-provided in Unicode.
+ * An output data string is compared because strings are usually swapped
+ * before the rest of the data, to allow for sorting of string tables
+ * according to the output charset.
+ * You can use -1 for the length parameters of NUL-terminated strings as usual.
+ * Returns Unicode code point order for invariant characters.
+ * @internal ICU 2.8
+ */
+typedef int32_t U_CALLCONV
+UDataCompareInvChars(const UDataSwapper *ds,
+                     const char *outString, int32_t outLength,
+                     const UChar *localString, int32_t localLength);
+
+/**
+ * Function for message output when an error occurs during data swapping.
+ * A format string and variable number of arguments are passed
+ * like for vprintf().
+ *
+ * @param context A function-specific context pointer.
+ * @param fmt The format string.
+ * @param args The arguments for format string inserts.
+ *
+ * @internal ICU 2.8
+ */
+typedef void U_CALLCONV
+UDataPrintError(void *context, const char *fmt, va_list args);
+
+struct UDataSwapper {
+    /** Input endianness. @internal ICU 2.8 */
+    UBool inIsBigEndian;
+    /** Input charset family. @see U_CHARSET_FAMILY @internal ICU 2.8 */
+    uint8_t inCharset;
+    /** Output endianness. @internal ICU 2.8 */
+    UBool outIsBigEndian;
+    /** Output charset family. @see U_CHARSET_FAMILY @internal ICU 2.8 */
+    uint8_t outCharset;
+
+    /* basic functions for reading data values */
+
+    /** Convert one uint16_t from input to platform endianness. @internal ICU 2.8 */
+    UDataReadUInt16 *readUInt16;
+    /** Convert one uint32_t from input to platform endianness. @internal ICU 2.8 */
+    UDataReadUInt32 *readUInt32;
+    /** Compare an invariant-character output string with a local one. @internal ICU 2.8 */
+    UDataCompareInvChars *compareInvChars;
+
+    /* basic functions for writing data values */
+
+    /** Convert one uint16_t from platform to input endianness. @internal ICU 2.8 */
+    UDataWriteUInt16 *writeUInt16;
+    /** Convert one uint32_t from platform to input endianness. @internal ICU 2.8 */
+    UDataWriteUInt32 *writeUInt32;
+
+    /* basic functions for data transformations */
+
+    /** Transform an array of 16-bit integers. @internal ICU 2.8 */
+    UDataSwapFn *swapArray16;
+    /** Transform an array of 32-bit integers. @internal ICU 2.8 */
+    UDataSwapFn *swapArray32;
+    /** Transform an array of 64-bit integers. @internal ICU 53 */
+    UDataSwapFn *swapArray64;
+    /** Transform an invariant-character string. @internal ICU 2.8 */
+    UDataSwapFn *swapInvChars;
+
+    /**
+     * Function for message output when an error occurs during data swapping.
+     * Can be NULL.
+     * @internal ICU 2.8
+     */
+    UDataPrintError *printError;
+    /** Context pointer for printError. @internal ICU 2.8 */
+    void *printErrorContext;
+};
+
+U_CDECL_END
+
+U_CAPI UDataSwapper * U_EXPORT2
+udata_openSwapper(UBool inIsBigEndian, uint8_t inCharset,
+                  UBool outIsBigEndian, uint8_t outCharset,
+                  UErrorCode *pErrorCode);
+
+/**
+ * Open a UDataSwapper for the given input data and the specified output
+ * characteristics.
+ * Values of -1 for any of the characteristics mean the local platform's
+ * characteristics.
+ *
+ * @see udata_swap
+ * @internal ICU 2.8
+ */
+U_CAPI UDataSwapper * U_EXPORT2
+udata_openSwapperForInputData(const void *data, int32_t length,
+                              UBool outIsBigEndian, uint8_t outCharset,
+                              UErrorCode *pErrorCode);
+
+U_CAPI void U_EXPORT2
+udata_closeSwapper(UDataSwapper *ds);
+
+/**
+ * Read the beginning of an ICU data piece, recognize magic bytes,
+ * swap the structure.
+ * Set a U_UNSUPPORTED_ERROR if it does not look like an ICU data piece.
+ *
+ * @return The size of the data header, in bytes.
+ *
+ * @internal ICU 2.8
+ */
+U_CAPI int32_t U_EXPORT2
+udata_swapDataHeader(const UDataSwapper *ds,
+                     const void *inData, int32_t length, void *outData,
+                     UErrorCode *pErrorCode);
+
+/**
+ * Convert one int16_t from input to platform endianness.
+ * @internal ICU 2.8
+ */
+U_CAPI int16_t U_EXPORT2
+udata_readInt16(const UDataSwapper *ds, int16_t x);
+
+/**
+ * Convert one int32_t from input to platform endianness.
+ * @internal ICU 2.8
+ */
+U_CAPI int32_t U_EXPORT2
+udata_readInt32(const UDataSwapper *ds, int32_t x);
+
+/**
+ * Swap a block of invariant, NUL-terminated strings, but not padding
+ * bytes after the last string.
+ * @internal
+ */
+U_CAPI int32_t U_EXPORT2
+udata_swapInvStringBlock(const UDataSwapper *ds,
+                         const void *inData, int32_t length, void *outData,
+                         UErrorCode *pErrorCode);
+
+U_CAPI void U_EXPORT2
+udata_printError(const UDataSwapper *ds,
+                 const char *fmt,
+                 ...);
+
+/* internal exports from putil.c -------------------------------------------- */
+
+/* declared here to keep them out of the public putil.h */
+
+/**
+ * Swap invariant char * strings ASCII->EBCDIC.
+ * @internal
+ */
+U_CAPI int32_t U_EXPORT2
+uprv_ebcdicFromAscii(const UDataSwapper *ds,
+                     const void *inData, int32_t length, void *outData,
+                     UErrorCode *pErrorCode);
+
+/**
+ * Copy invariant ASCII char * strings and verify they are invariant.
+ * @internal
+ */
+U_CFUNC int32_t
+uprv_copyAscii(const UDataSwapper *ds,
+               const void *inData, int32_t length, void *outData,
+               UErrorCode *pErrorCode);
+
+/**
+ * Swap invariant char * strings EBCDIC->ASCII.
+ * @internal
+ */
+U_CFUNC int32_t
+uprv_asciiFromEbcdic(const UDataSwapper *ds,
+                     const void *inData, int32_t length, void *outData,
+                     UErrorCode *pErrorCode);
+
+/**
+ * Copy invariant EBCDIC char * strings and verify they are invariant.
+ * @internal
+ */
+U_CFUNC int32_t
+uprv_copyEbcdic(const UDataSwapper *ds,
+                const void *inData, int32_t length, void *outData,
+                UErrorCode *pErrorCode);
+
+/**
+ * Compare ASCII invariant char * with Unicode invariant UChar *
+ * @internal
+ */
+U_CFUNC int32_t
+uprv_compareInvAscii(const UDataSwapper *ds,
+                     const char *outString, int32_t outLength,
+                     const UChar *localString, int32_t localLength);
+
+/**
+ * Compare EBCDIC invariant char * with Unicode invariant UChar *
+ * @internal
+ */
+U_CFUNC int32_t
+uprv_compareInvEbcdic(const UDataSwapper *ds,
+                      const char *outString, int32_t outLength,
+                      const UChar *localString, int32_t localLength);
+
+/**
+ * \def uprv_compareInvWithUChar
+ * Compare an invariant-character strings with a UChar string
+ * @internal
+ */
+#if U_CHARSET_FAMILY==U_ASCII_FAMILY
+#   define uprv_compareInvWithUChar uprv_compareInvAscii
+#elif U_CHARSET_FAMILY==U_EBCDIC_FAMILY
+#   define uprv_compareInvWithUChar uprv_compareInvEbcdic
+#else
+#   error Unknown charset family!
+#endif
+
+
+/* material... -------------------------------------------------------------- */
+
+#if 0
+
+/* udata.h */
+
+/**
+ * Public API function in udata.c
+ *
+ * Same as udata_openChoice() but automatically swaps the data.
+ * isAcceptable, if not NULL, may accept data with endianness and charset family
+ * different from the current platform's properties.
+ * If the data is acceptable and the platform properties do not match, then
+ * the swap function is called to swap an allocated version of the data.
+ * Preflighting may or may not be performed depending on whether the size of
+ * the loaded data item is known.
+ *
+ * @param isAcceptable Same as for udata_openChoice(). May be NULL.
+ *
+ * @internal ICU 2.8
+ */
+U_CAPI UDataMemory * U_EXPORT2
+udata_openSwap(const char *path, const char *type, const char *name,
+               UDataMemoryIsAcceptable *isAcceptable, void *isAcceptableContext,
+               UDataSwapFn *swap,
+               UDataPrintError *printError, void *printErrorContext,
+               UErrorCode *pErrorCode);
+
+#endif
+
+#endif
diff --git a/vendor/icu/src/uinvchar.cpp b/vendor/icu/src/uinvchar.cpp
new file mode 100644
index 0000000000..ee9a1d8555
--- /dev/null
+++ b/vendor/icu/src/uinvchar.cpp
@@ -0,0 +1,615 @@
+// © 2016 and later: Unicode, Inc. and others.
+// License & terms of use: http://www.unicode.org/copyright.html
+/*
+*******************************************************************************
+*
+*   Copyright (C) 1999-2010, International Business Machines
+*   Corporation and others.  All Rights Reserved.
+*
+*******************************************************************************
+*   file name:  uinvchar.c
+*   encoding:   UTF-8
+*   tab size:   8 (not used)
+*   indentation:2
+*
+*   created on: 2004sep14
+*   created by: Markus W. Scherer
+*
+*   Functions for handling invariant characters, moved here from putil.c
+*   for better modularization.
+*/
+
+#include <unicode/utypes.h>
+#include <unicode/ustring.h>
+#include "udataswp.h"
+#include "cstring.h"
+#include "cmemory.h"
+#include "uassert.h"
+#include "uinvchar.h"
+
+/* invariant-character handling --------------------------------------------- */
+
+/*
+ * These maps for ASCII to/from EBCDIC map invariant characters (see utypes.h)
+ * appropriately for most EBCDIC codepages.
+ *
+ * They currently also map most other ASCII graphic characters,
+ * appropriately for codepages 37 and 1047.
+ * Exceptions: The characters for []^ have different codes in 37 & 1047.
+ * Both versions are mapped to ASCII.
+ *
+ *    ASCII 37 1047
+ * [     5B BA   AD
+ * ]     5D BB   BD
+ * ^     5E B0   5F
+ *
+ * There are no mappings for variant characters from Unicode to EBCDIC.
+ *
+ * Currently, C0 control codes are also included in these maps.
+ * Exceptions: S/390 Open Edition swaps LF and NEL codes compared with other
+ * EBCDIC platforms; both codes (15 and 25) are mapped to ASCII LF (0A),
+ * but there is no mapping for ASCII LF back to EBCDIC.
+ *
+ *    ASCII EBCDIC S/390-OE
+ * LF    0A     25       15
+ * NEL   85     15       25
+ *
+ * The maps below explicitly exclude the variant
+ * control and graphical characters that are in ASCII-based
+ * codepages at 0x80 and above.
+ * "No mapping" is expressed by mapping to a 00 byte.
+ *
+ * These tables do not establish a converter or a codepage.
+ */
+
+static const uint8_t asciiFromEbcdic[256]={
+    0x00, 0x01, 0x02, 0x03, 0x00, 0x09, 0x00, 0x7f, 0x00, 0x00, 0x00, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f,
+    0x10, 0x11, 0x12, 0x13, 0x00, 0x0a, 0x08, 0x00, 0x18, 0x19, 0x00, 0x00, 0x1c, 0x1d, 0x1e, 0x1f,
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x0a, 0x17, 0x1b, 0x00, 0x00, 0x00, 0x00, 0x00, 0x05, 0x06, 0x07,
+    0x00, 0x00, 0x16, 0x00, 0x00, 0x00, 0x00, 0x04, 0x00, 0x00, 0x00, 0x00, 0x14, 0x15, 0x00, 0x1a,
+
+    0x20, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x2e, 0x3c, 0x28, 0x2b, 0x7c,
+    0x26, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x21, 0x24, 0x2a, 0x29, 0x3b, 0x5e,
+    0x2d, 0x2f, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x2c, 0x25, 0x5f, 0x3e, 0x3f,
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x60, 0x3a, 0x23, 0x40, 0x27, 0x3d, 0x22,
+
+    0x00, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, 0x68, 0x69, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+    0x00, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, 0x70, 0x71, 0x72, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+    0x00, 0x7e, 0x73, 0x74, 0x75, 0x76, 0x77, 0x78, 0x79, 0x7a, 0x00, 0x00, 0x00, 0x5b, 0x00, 0x00,
+    0x5e, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x5b, 0x5d, 0x00, 0x5d, 0x00, 0x00,
+
+    0x7b, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48, 0x49, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+    0x7d, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, 0x50, 0x51, 0x52, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+    0x5c, 0x00, 0x53, 0x54, 0x55, 0x56, 0x57, 0x58, 0x59, 0x5a, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+    0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
+};
+
+static const uint8_t ebcdicFromAscii[256]={
+    0x00, 0x01, 0x02, 0x03, 0x37, 0x2d, 0x2e, 0x2f, 0x16, 0x05, 0x00, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f,
+    0x10, 0x11, 0x12, 0x13, 0x3c, 0x3d, 0x32, 0x26, 0x18, 0x19, 0x3f, 0x27, 0x1c, 0x1d, 0x1e, 0x1f,
+    0x40, 0x00, 0x7f, 0x00, 0x00, 0x6c, 0x50, 0x7d, 0x4d, 0x5d, 0x5c, 0x4e, 0x6b, 0x60, 0x4b, 0x61,
+    0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, 0xf8, 0xf9, 0x7a, 0x5e, 0x4c, 0x7e, 0x6e, 0x6f,
+
+    0x00, 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc7, 0xc8, 0xc9, 0xd1, 0xd2, 0xd3, 0xd4, 0xd5, 0xd6,
+    0xd7, 0xd8, 0xd9, 0xe2, 0xe3, 0xe4, 0xe5, 0xe6, 0xe7, 0xe8, 0xe9, 0x00, 0x00, 0x00, 0x00, 0x6d,
+    0x00, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87, 0x88, 0x89, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96,
+    0x97, 0x98, 0x99, 0xa2, 0xa3, 0xa4, 0xa5, 0xa6, 0xa7, 0xa8, 0xa9, 0x00, 0x00, 0x00, 0x00, 0x07,
+
+    0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+    0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+    0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+    0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+
+    0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+    0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+    0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+    0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
+};
+
+/* Same as asciiFromEbcdic[] except maps all letters to lowercase. */
+static const uint8_t lowercaseAsciiFromEbcdic[256]={
+    0x00, 0x01, 0x02, 0x03, 0x00, 0x09, 0x00, 0x7f, 0x00, 0x00, 0x00, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f,
+    0x10, 0x11, 0x12, 0x13, 0x00, 0x0a, 0x08, 0x00, 0x18, 0x19, 0x00, 0x00, 0x1c, 0x1d, 0x1e, 0x1f,
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x0a, 0x17, 0x1b, 0x00, 0x00, 0x00, 0x00, 0x00, 0x05, 0x06, 0x07,
+    0x00, 0x00, 0x16, 0x00, 0x00, 0x00, 0x00, 0x04, 0x00, 0x00, 0x00, 0x00, 0x14, 0x15, 0x00, 0x1a,
+
+    0x20, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x2e, 0x3c, 0x28, 0x2b, 0x7c,
+    0x26, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x21, 0x24, 0x2a, 0x29, 0x3b, 0x5e,
+    0x2d, 0x2f, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x2c, 0x25, 0x5f, 0x3e, 0x3f,
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x60, 0x3a, 0x23, 0x40, 0x27, 0x3d, 0x22,
+
+    0x00, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, 0x68, 0x69, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+    0x00, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, 0x70, 0x71, 0x72, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+    0x00, 0x7e, 0x73, 0x74, 0x75, 0x76, 0x77, 0x78, 0x79, 0x7a, 0x00, 0x00, 0x00, 0x5b, 0x00, 0x00,
+    0x5e, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x5b, 0x5d, 0x00, 0x5d, 0x00, 0x00,
+
+    0x7b, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, 0x68, 0x69, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+    0x7d, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, 0x70, 0x71, 0x72, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+    0x7c, 0x00, 0x73, 0x74, 0x75, 0x76, 0x77, 0x78, 0x79, 0x7a, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+    0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
+};
+
+/*
+ * Bit sets indicating which characters of the ASCII repertoire
+ * (by ASCII/Unicode code) are "invariant".
+ * See utypes.h for more details.
+ *
+ * As invariant are considered the characters of the ASCII repertoire except
+ * for the following:
+ * 21  '!' <exclamation mark>
+ * 23  '#' <number sign>
+ * 24  '$' <dollar sign>
+ *
+ * 40  '@' <commercial at>
+ *
+ * 5b  '[' <left bracket>
+ * 5c  '\' <backslash>
+ * 5d  ']' <right bracket>
+ * 5e  '^' <circumflex>
+ *
+ * 60  '`' <grave accent>
+ *
+ * 7b  '{' <left brace>
+ * 7c  '|' <vertical line>
+ * 7d  '}' <right brace>
+ * 7e  '~' <tilde>
+ */
+static const uint32_t invariantChars[4]={
+    0xfffffbff, /* 00..1f but not 0a */
+    0xffffffe5, /* 20..3f but not 21 23 24 */
+    0x87fffffe, /* 40..5f but not 40 5b..5e */
+    0x87fffffe  /* 60..7f but not 60 7b..7e */
+};
+
+/*
+ * test unsigned types (or values known to be non-negative) for invariant characters,
+ * tests ASCII-family character values
+ */
+#define UCHAR_IS_INVARIANT(c) (((c)<=0x7f) && (invariantChars[(c)>>5]&((uint32_t)1<<((c)&0x1f)))!=0)
+
+/* test signed types for invariant characters, adds test for positive values */
+#define SCHAR_IS_INVARIANT(c) ((0<=(c)) && UCHAR_IS_INVARIANT(c))
+
+#if U_CHARSET_FAMILY==U_ASCII_FAMILY
+#define CHAR_TO_UCHAR(c) c
+#define UCHAR_TO_CHAR(c) c
+#elif U_CHARSET_FAMILY==U_EBCDIC_FAMILY
+#define CHAR_TO_UCHAR(u) asciiFromEbcdic[u]
+#define UCHAR_TO_CHAR(u) ebcdicFromAscii[u]
+#else
+#   error U_CHARSET_FAMILY is not valid
+#endif
+
+
+U_CAPI void U_EXPORT2
+u_charsToUChars(const char *cs, UChar *us, int32_t length) {
+    UChar u;
+    uint8_t c;
+
+    /*
+     * Allow the entire ASCII repertoire to be mapped _to_ Unicode.
+     * For EBCDIC systems, this works for characters with codes from
+     * codepages 37 and 1047 or compatible.
+     */
+    while(length>0) {
+        c=(uint8_t)(*cs++);
+        u=(UChar)CHAR_TO_UCHAR(c);
+        U_ASSERT((u!=0 || c==0)); /* only invariant chars converted? */
+        *us++=u;
+        --length;
+    }
+}
+
+U_CAPI void U_EXPORT2
+u_UCharsToChars(const UChar *us, char *cs, int32_t length) {
+    UChar u;
+
+    while(length>0) {
+        u=*us++;
+        if(!UCHAR_IS_INVARIANT(u)) {
+            U_ASSERT(FALSE); /* Variant characters were used. These are not portable in ICU. */
+            u=0;
+        }
+        *cs++=(char)UCHAR_TO_CHAR(u);
+        --length;
+    }
+}
+
+U_CAPI UBool U_EXPORT2
+uprv_isInvariantString(const char *s, int32_t length) {
+    uint8_t c;
+
+    for(;;) {
+        if(length<0) {
+            /* NUL-terminated */
+            c=(uint8_t)*s++;
+            if(c==0) {
+                break;
+            }
+        } else {
+            /* count length */
+            if(length==0) {
+                break;
+            }
+            --length;
+            c=(uint8_t)*s++;
+            if(c==0) {
+                continue; /* NUL is invariant */
+            }
+        }
+        /* c!=0 now, one branch below checks c==0 for variant characters */
+
+        /*
+         * no assertions here because these functions are legitimately called
+         * for strings with variant characters
+         */
+#if U_CHARSET_FAMILY==U_ASCII_FAMILY
+        if(!UCHAR_IS_INVARIANT(c)) {
+            return FALSE; /* found a variant char */
+        }
+#elif U_CHARSET_FAMILY==U_EBCDIC_FAMILY
+        c=CHAR_TO_UCHAR(c);
+        if(c==0 || !UCHAR_IS_INVARIANT(c)) {
+            return FALSE; /* found a variant char */
+        }
+#else
+#   error U_CHARSET_FAMILY is not valid
+#endif
+    }
+    return TRUE;
+}
+
+U_CAPI UBool U_EXPORT2
+uprv_isInvariantUString(const UChar *s, int32_t length) {
+    UChar c;
+
+    for(;;) {
+        if(length<0) {
+            /* NUL-terminated */
+            c=*s++;
+            if(c==0) {
+                break;
+            }
+        } else {
+            /* count length */
+            if(length==0) {
+                break;
+            }
+            --length;
+            c=*s++;
+        }
+
+        /*
+         * no assertions here because these functions are legitimately called
+         * for strings with variant characters
+         */
+        if(!UCHAR_IS_INVARIANT(c)) {
+            return FALSE; /* found a variant char */
+        }
+    }
+    return TRUE;
+}
+
+/* UDataSwapFn implementations used in udataswp.c ------- */
+
+/* convert ASCII to EBCDIC and verify that all characters are invariant */
+U_CAPI int32_t U_EXPORT2
+uprv_ebcdicFromAscii(const UDataSwapper *ds,
+                     const void *inData, int32_t length, void *outData,
+                     UErrorCode *pErrorCode) {
+    const uint8_t *s;
+    uint8_t *t;
+    uint8_t c;
+
+    int32_t count;
+
+    if(pErrorCode==NULL || U_FAILURE(*pErrorCode)) {
+        return 0;
+    }
+    if(ds==NULL || inData==NULL || length<0 || (length>0 && outData==NULL)) {
+        *pErrorCode=U_ILLEGAL_ARGUMENT_ERROR;
+        return 0;
+    }
+
+    /* setup and swapping */
+    s=(const uint8_t *)inData;
+    t=(uint8_t *)outData;
+    count=length;
+    while(count>0) {
+        c=*s++;
+        if(!UCHAR_IS_INVARIANT(c)) {
+            udata_printError(ds, "uprv_ebcdicFromAscii() string[%d] contains a variant character in position %d\n",
+                             length, length-count);
+            *pErrorCode=U_INVALID_CHAR_FOUND;
+            return 0;
+        }
+        *t++=ebcdicFromAscii[c];
+        --count;
+    }
+
+    return length;
+}
+
+/* this function only checks and copies ASCII strings without conversion */
+U_CFUNC int32_t
+uprv_copyAscii(const UDataSwapper *ds,
+               const void *inData, int32_t length, void *outData,
+               UErrorCode *pErrorCode) {
+    const uint8_t *s;
+    uint8_t c;
+
+    int32_t count;
+
+    if(pErrorCode==NULL || U_FAILURE(*pErrorCode)) {
+        return 0;
+    }
+    if(ds==NULL || inData==NULL || length<0 || (length>0 && outData==NULL)) {
+        *pErrorCode=U_ILLEGAL_ARGUMENT_ERROR;
+        return 0;
+    }
+
+    /* setup and checking */
+    s=(const uint8_t *)inData;
+    count=length;
+    while(count>0) {
+        c=*s++;
+        if(!UCHAR_IS_INVARIANT(c)) {
+            udata_printError(ds, "uprv_copyFromAscii() string[%d] contains a variant character in position %d\n",
+                             length, length-count);
+            *pErrorCode=U_INVALID_CHAR_FOUND;
+            return 0;
+        }
+        --count;
+    }
+
+    if(length>0 && inData!=outData) {
+        uprv_memcpy(outData, inData, length);
+    }
+
+    return length;
+}
+
+/* convert EBCDIC to ASCII and verify that all characters are invariant */
+U_CFUNC int32_t
+uprv_asciiFromEbcdic(const UDataSwapper *ds,
+                     const void *inData, int32_t length, void *outData,
+                     UErrorCode *pErrorCode) {
+    const uint8_t *s;
+    uint8_t *t;
+    uint8_t c;
+
+    int32_t count;
+
+    if(pErrorCode==NULL || U_FAILURE(*pErrorCode)) {
+        return 0;
+    }
+    if(ds==NULL || inData==NULL || length<0 ||  (length>0 && outData==NULL)) {
+        *pErrorCode=U_ILLEGAL_ARGUMENT_ERROR;
+        return 0;
+    }
+
+    /* setup and swapping */
+    s=(const uint8_t *)inData;
+    t=(uint8_t *)outData;
+    count=length;
+    while(count>0) {
+        c=*s++;
+        if(c!=0 && ((c=asciiFromEbcdic[c])==0 || !UCHAR_IS_INVARIANT(c))) {
+            udata_printError(ds, "uprv_asciiFromEbcdic() string[%d] contains a variant character in position %d\n",
+                             length, length-count);
+            *pErrorCode=U_INVALID_CHAR_FOUND;
+            return 0;
+        }
+        *t++=c;
+        --count;
+    }
+
+    return length;
+}
+
+/* this function only checks and copies EBCDIC strings without conversion */
+U_CFUNC int32_t
+uprv_copyEbcdic(const UDataSwapper *ds,
+                const void *inData, int32_t length, void *outData,
+                UErrorCode *pErrorCode) {
+    const uint8_t *s;
+    uint8_t c;
+
+    int32_t count;
+
+    if(pErrorCode==NULL || U_FAILURE(*pErrorCode)) {
+        return 0;
+    }
+    if(ds==NULL || inData==NULL || length<0 || (length>0 && outData==NULL)) {
+        *pErrorCode=U_ILLEGAL_ARGUMENT_ERROR;
+        return 0;
+    }
+
+    /* setup and checking */
+    s=(const uint8_t *)inData;
+    count=length;
+    while(count>0) {
+        c=*s++;
+        if(c!=0 && ((c=asciiFromEbcdic[c])==0 || !UCHAR_IS_INVARIANT(c))) {
+            udata_printError(ds, "uprv_copyEbcdic() string[%] contains a variant character in position %d\n",
+                             length, length-count);
+            *pErrorCode=U_INVALID_CHAR_FOUND;
+            return 0;
+        }
+        --count;
+    }
+
+    if(length>0 && inData!=outData) {
+        uprv_memcpy(outData, inData, length);
+    }
+
+    return length;
+}
+
+/* compare invariant strings; variant characters compare less than others and unlike each other */
+U_CFUNC int32_t
+uprv_compareInvAscii(const UDataSwapper *ds,
+                     const char *outString, int32_t outLength,
+                     const UChar *localString, int32_t localLength) {
+    (void)ds;
+    int32_t minLength;
+    UChar32 c1, c2;
+    uint8_t c;
+
+    if(outString==NULL || outLength<-1 || localString==NULL || localLength<-1) {
+        return 0;
+    }
+
+    if(outLength<0) {
+        outLength=(int32_t)uprv_strlen(outString);
+    }
+    if(localLength<0) {
+        localLength=u_strlen(localString);
+    }
+
+    minLength= outLength<localLength ? outLength : localLength;
+
+    while(minLength>0) {
+        c=(uint8_t)*outString++;
+        if(UCHAR_IS_INVARIANT(c)) {
+            c1=c;
+        } else {
+            c1=-1;
+        }
+
+        c2=*localString++;
+        if(!UCHAR_IS_INVARIANT(c2)) {
+            c2=-2;
+        }
+
+        if((c1-=c2)!=0) {
+            return c1;
+        }
+
+        --minLength;
+    }
+
+    /* strings start with same prefix, compare lengths */
+    return outLength-localLength;
+}
+
+U_CFUNC int32_t
+uprv_compareInvEbcdic(const UDataSwapper *ds,
+                      const char *outString, int32_t outLength,
+                      const UChar *localString, int32_t localLength) {
+    (void)ds;
+    int32_t minLength;
+    UChar32 c1, c2;
+    uint8_t c;
+
+    if(outString==NULL || outLength<-1 || localString==NULL || localLength<-1) {
+        return 0;
+    }
+
+    if(outLength<0) {
+        outLength=(int32_t)uprv_strlen(outString);
+    }
+    if(localLength<0) {
+        localLength=u_strlen(localString);
+    }
+
+    minLength= outLength<localLength ? outLength : localLength;
+
+    while(minLength>0) {
+        c=(uint8_t)*outString++;
+        if(c==0) {
+            c1=0;
+        } else if((c1=asciiFromEbcdic[c])!=0 && UCHAR_IS_INVARIANT(c1)) {
+            /* c1 is set */
+        } else {
+            c1=-1;
+        }
+
+        c2=*localString++;
+        if(!UCHAR_IS_INVARIANT(c2)) {
+            c2=-2;
+        }
+
+        if((c1-=c2)!=0) {
+            return c1;
+        }
+
+        --minLength;
+    }
+
+    /* strings start with same prefix, compare lengths */
+    return outLength-localLength;
+}
+
+U_CAPI int32_t U_EXPORT2
+uprv_compareInvEbcdicAsAscii(const char *s1, const char *s2) {
+    int32_t c1, c2;
+
+    for(;; ++s1, ++s2) {
+        c1=(uint8_t)*s1;
+        c2=(uint8_t)*s2;
+        if(c1!=c2) {
+            if(c1!=0 && ((c1=asciiFromEbcdic[c1])==0 || !UCHAR_IS_INVARIANT(c1))) {
+                c1=-(int32_t)(uint8_t)*s1;
+            }
+            if(c2!=0 && ((c2=asciiFromEbcdic[c2])==0 || !UCHAR_IS_INVARIANT(c2))) {
+                c2=-(int32_t)(uint8_t)*s2;
+            }
+            return c1-c2;
+        } else if(c1==0) {
+            return 0;
+        }
+    }
+}
+
+U_CAPI char U_EXPORT2
+uprv_ebcdicToLowercaseAscii(char c) {
+    return (char)lowercaseAsciiFromEbcdic[(uint8_t)c];
+}
+
+U_INTERNAL uint8_t* U_EXPORT2
+uprv_aestrncpy(uint8_t *dst, const uint8_t *src, int32_t n)
+{
+  uint8_t *orig_dst = dst;
+
+  if(n==-1) { 
+    n = static_cast<int32_t>(uprv_strlen((const char*)src)+1); /* copy NUL */
+  }
+  /* copy non-null */
+  while(*src && n>0) {
+    *(dst++) = asciiFromEbcdic[*(src++)];
+    n--;
+  }
+  /* pad */
+  while(n>0) {
+    *(dst++) = 0;
+    n--;
+  }
+  return orig_dst;
+}
+
+U_INTERNAL uint8_t* U_EXPORT2
+uprv_eastrncpy(uint8_t *dst, const uint8_t *src, int32_t n)
+{
+  uint8_t *orig_dst = dst;
+
+  if(n==-1) { 
+    n = static_cast<int32_t>(uprv_strlen((const char*)src)+1); /* copy NUL */
+  }
+  /* copy non-null */
+  while(*src && n>0) {
+    char ch = ebcdicFromAscii[*(src++)];
+    if(ch == 0) {
+      ch = ebcdicFromAscii[0x3f]; /* questionmark (subchar) */
+    }
+    *(dst++) = ch;
+    n--;
+  }
+  /* pad */
+  while(n>0) {
+    *(dst++) = 0;
+    n--;
+  }
+  return orig_dst;
+}
+
diff --git a/vendor/icu/src/uinvchar.h b/vendor/icu/src/uinvchar.h
new file mode 100644
index 0000000000..223cdf7ad1
--- /dev/null
+++ b/vendor/icu/src/uinvchar.h
@@ -0,0 +1,146 @@
+// © 2016 and later: Unicode, Inc. and others.
+// License & terms of use: http://www.unicode.org/copyright.html
+/*
+*******************************************************************************
+*
+*   Copyright (C) 1999-2015, International Business Machines
+*   Corporation and others.  All Rights Reserved.
+*
+*******************************************************************************
+*   file name:  uinvchar.h
+*   encoding:   UTF-8
+*   tab size:   8 (not used)
+*   indentation:2
+*
+*   created on: 2004sep14
+*   created by: Markus W. Scherer
+*
+*   Definitions for handling invariant characters, moved here from putil.c
+*   for better modularization.
+*/
+
+#ifndef __UINVCHAR_H__
+#define __UINVCHAR_H__
+
+#include <unicode/utypes.h>
+#ifdef __cplusplus
+#include <unicode/unistr.h>
+#endif
+
+/**
+ * Check if a char string only contains invariant characters.
+ * See utypes.h for details.
+ *
+ * @param s Input string pointer.
+ * @param length Length of the string, can be -1 if NUL-terminated.
+ * @return TRUE if s contains only invariant characters.
+ *
+ * @internal (ICU 2.8)
+ */
+U_INTERNAL UBool U_EXPORT2
+uprv_isInvariantString(const char *s, int32_t length);
+
+/**
+ * Check if a Unicode string only contains invariant characters.
+ * See utypes.h for details.
+ *
+ * @param s Input string pointer.
+ * @param length Length of the string, can be -1 if NUL-terminated.
+ * @return TRUE if s contains only invariant characters.
+ *
+ * @internal (ICU 2.8)
+ */
+U_INTERNAL UBool U_EXPORT2
+uprv_isInvariantUString(const UChar *s, int32_t length);
+
+#ifdef __cplusplus
+
+/**
+ * Check if a UnicodeString only contains invariant characters.
+ * See utypes.h for details.
+ *
+ * @param s Input string.
+ * @return TRUE if s contains only invariant characters.
+ */
+U_INTERNAL inline UBool U_EXPORT2
+uprv_isInvariantUnicodeString(const icu::UnicodeString &s) {
+    return uprv_isInvariantUString(icu::toUCharPtr(s.getBuffer()), s.length());
+}
+
+#endif  /* __cplusplus */
+
+/**
+ * \def U_UPPER_ORDINAL
+ * Get the ordinal number of an uppercase invariant character
+ * @internal
+ */
+#if U_CHARSET_FAMILY==U_ASCII_FAMILY
+#   define U_UPPER_ORDINAL(x) ((x)-'A')
+#elif U_CHARSET_FAMILY==U_EBCDIC_FAMILY
+#   define U_UPPER_ORDINAL(x) (((x) < 'J') ? ((x)-'A') : \
+                              (((x) < 'S') ? ((x)-'J'+9) : \
+                               ((x)-'S'+18)))
+#else
+#   error Unknown charset family!
+#endif
+
+/**
+ * Compare two EBCDIC invariant-character strings in ASCII order.
+ * @internal
+ */
+U_INTERNAL int32_t U_EXPORT2
+uprv_compareInvEbcdicAsAscii(const char *s1, const char *s2);
+
+/**
+ * \def uprv_compareInvCharsAsAscii
+ * Compare two invariant-character strings in ASCII order.
+ * @internal
+ */
+#if U_CHARSET_FAMILY==U_ASCII_FAMILY
+#   define uprv_compareInvCharsAsAscii(s1, s2) uprv_strcmp(s1, s2)
+#elif U_CHARSET_FAMILY==U_EBCDIC_FAMILY
+#   define uprv_compareInvCharsAsAscii(s1, s2) uprv_compareInvEbcdicAsAscii(s1, s2)
+#else
+#   error Unknown charset family!
+#endif
+
+/**
+ * Converts an EBCDIC invariant character to lowercase ASCII.
+ * @internal
+ */
+U_INTERNAL char U_EXPORT2
+uprv_ebcdicToLowercaseAscii(char c);
+
+/**
+ * \def uprv_invCharToLowercaseAscii
+ * Converts an invariant character to lowercase ASCII.
+ * @internal
+ */
+#if U_CHARSET_FAMILY==U_ASCII_FAMILY
+#   define uprv_invCharToLowercaseAscii uprv_asciitolower
+#elif U_CHARSET_FAMILY==U_EBCDIC_FAMILY
+#   define uprv_invCharToLowercaseAscii uprv_ebcdicToLowercaseAscii
+#else
+#   error Unknown charset family!
+#endif
+
+/**
+ * Copy EBCDIC to ASCII
+ * @internal
+ * @see uprv_strncpy
+ */
+U_INTERNAL uint8_t* U_EXPORT2
+uprv_aestrncpy(uint8_t *dst, const uint8_t *src, int32_t n);
+
+
+/**
+ * Copy ASCII to EBCDIC
+ * @internal
+ * @see uprv_strncpy
+ */
+U_INTERNAL uint8_t* U_EXPORT2
+uprv_eastrncpy(uint8_t *dst, const uint8_t *src, int32_t n);
+
+
+
+#endif
diff --git a/vendor/icu/src/umapfile.h b/vendor/icu/src/umapfile.h
new file mode 100644
index 0000000000..78baf233e0
--- /dev/null
+++ b/vendor/icu/src/umapfile.h
@@ -0,0 +1,57 @@
+// © 2016 and later: Unicode, Inc. and others.
+// License & terms of use: http://www.unicode.org/copyright.html
+/*
+******************************************************************************
+*
+*   Copyright (C) 1999-2011, International Business Machines
+*   Corporation and others.  All Rights Reserved.
+*
+******************************************************************************/
+
+/*----------------------------------------------------------------------------------
+ *
+ *       Memory mapped file wrappers for use by the ICU Data Implementation
+ *
+ *           Porting note:  The implementation of these functions is very platform specific.
+ *             Not all platforms can do real memory mapping.  Those that can't
+ *             still must implement these functions, getting the data into memory using
+ *             whatever means are available.
+ *
+ *            These functions are part of the ICU internal implementation, and
+ *            are not inteded to be used directly by applications.
+ *
+ *----------------------------------------------------------------------------------*/
+
+#ifndef __UMAPFILE_H__
+#define __UMAPFILE_H__
+
+#include <unicode/putil.h>
+#include <unicode/udata.h>
+#include "putilimp.h"
+
+U_CFUNC UBool uprv_mapFile(UDataMemory *pdm, const char *path);
+U_CFUNC void  uprv_unmapFile(UDataMemory *pData);
+
+/* MAP_NONE: no memory mapping, no file access at all */
+#define MAP_NONE        0
+#define MAP_WIN32       1
+#define MAP_POSIX       2
+#define MAP_STDIO       3
+#define MAP_390DLL      4
+
+#if UCONFIG_NO_FILE_IO
+#   define MAP_IMPLEMENTATION MAP_NONE
+#elif U_PLATFORM_USES_ONLY_WIN32_API
+#   define MAP_IMPLEMENTATION MAP_WIN32
+#elif U_HAVE_MMAP || U_PLATFORM == U_PF_OS390
+#   if U_PLATFORM == U_PF_OS390 && defined (OS390_STUBDATA)
+        /*   No memory mapping for 390 batch mode.  Fake it using dll loading.  */
+#       define MAP_IMPLEMENTATION MAP_390DLL
+#   else
+#       define MAP_IMPLEMENTATION MAP_POSIX
+#   endif
+#else /* unknown platform, no memory map implementation: use stdio.h and uprv_malloc() instead */
+#   define MAP_IMPLEMENTATION MAP_STDIO
+#endif
+
+#endif
diff --git a/vendor/icu/src/umath.cpp b/vendor/icu/src/umath.cpp
new file mode 100644
index 0000000000..7cf4b31749
--- /dev/null
+++ b/vendor/icu/src/umath.cpp
@@ -0,0 +1,26 @@
+// © 2016 and later: Unicode, Inc. and others.
+// License & terms of use: http://www.unicode.org/copyright.html
+/*
+******************************************************************************
+*
+*   Copyright (C) 1997-2006, International Business Machines
+*   Corporation and others.  All Rights Reserved.
+*
+******************************************************************************
+* This file contains platform independent math.
+*/
+
+#include "putilimp.h"
+
+U_CAPI int32_t U_EXPORT2
+uprv_max(int32_t x, int32_t y)
+{
+    return (x > y ? x : y);
+}
+
+U_CAPI int32_t U_EXPORT2
+uprv_min(int32_t x, int32_t y)
+{
+    return (x > y ? y : x);
+}
+
diff --git a/vendor/icu/src/umutex.h b/vendor/icu/src/umutex.h
new file mode 100644
index 0000000000..1d1fac548a
--- /dev/null
+++ b/vendor/icu/src/umutex.h
@@ -0,0 +1,451 @@
+// © 2016 and later: Unicode, Inc. and others.
+// License & terms of use: http://www.unicode.org/copyright.html
+/*
+**********************************************************************
+*   Copyright (C) 1997-2015, International Business Machines
+*   Corporation and others.  All Rights Reserved.
+**********************************************************************
+*
+* File UMUTEX.H
+*
+* Modification History:
+*
+*   Date        Name        Description
+*   04/02/97  aliu        Creation.
+*   04/07/99  srl         rewrite - C interface, multiple mutices
+*   05/13/99  stephen     Changed to umutex (from cmutex)
+******************************************************************************
+*/
+
+#ifndef UMUTEX_H
+#define UMUTEX_H
+
+#include <unicode/utypes.h>
+#include <unicode/uclean.h>
+#include "putilimp.h"
+
+
+
+// Forward Declarations. UMutex is not in the ICU namespace (yet) because
+//                       there are some remaining references from plain C.
+struct UMutex;
+struct UConditionVar;
+
+U_NAMESPACE_BEGIN
+struct UInitOnce;
+U_NAMESPACE_END
+
+// Stringify macros, to allow #include of user supplied atomic & mutex files.
+#define U_MUTEX_STR(s) #s
+#define U_MUTEX_XSTR(s) U_MUTEX_STR(s)
+
+/****************************************************************************
+ *
+ *   Low Level Atomic Operations.
+ *      Compiler dependent. Not operating system dependent.
+ *
+ ****************************************************************************/
+#if defined (U_USER_ATOMICS_H)
+#include U_MUTEX_XSTR(U_USER_ATOMICS_H)
+
+#elif U_HAVE_STD_ATOMICS
+
+//  C++11 atomics are available.
+
+#include <atomic>
+
+U_NAMESPACE_BEGIN
+
+typedef std::atomic<int32_t> u_atomic_int32_t;
+#define ATOMIC_INT32_T_INITIALIZER(val) ATOMIC_VAR_INIT(val)
+
+inline int32_t umtx_loadAcquire(u_atomic_int32_t &var) {
+    return var.load(std::memory_order_acquire);
+}
+
+inline void umtx_storeRelease(u_atomic_int32_t &var, int32_t val) {
+    var.store(val, std::memory_order_release);
+}
+
+inline int32_t umtx_atomic_inc(u_atomic_int32_t *var) {
+    return var->fetch_add(1) + 1;
+}
+
+inline int32_t umtx_atomic_dec(u_atomic_int32_t *var) {
+    return var->fetch_sub(1) - 1;
+}
+U_NAMESPACE_END
+
+#elif U_PLATFORM_HAS_WIN32_API
+
+// MSVC compiler. Reads and writes of volatile variables have
+//                acquire and release memory semantics, respectively.
+//                This is a Microsoft extension, not standard C++ behavior.
+//
+//   Update:      can't use this because of MinGW, built with gcc.
+//                Original plan was to use gcc atomics for MinGW, but they
+//                aren't supported, so we fold MinGW into this path.
+
+#ifndef WIN32_LEAN_AND_MEAN
+# define WIN32_LEAN_AND_MEAN
+#endif
+# define VC_EXTRALEAN
+# define NOUSER
+# define NOSERVICE
+# define NOIME
+# define NOMCX
+# ifndef NOMINMAX
+# define NOMINMAX
+# endif
+# include <windows.h>
+
+U_NAMESPACE_BEGIN
+typedef volatile LONG u_atomic_int32_t;
+#define ATOMIC_INT32_T_INITIALIZER(val) val
+
+inline int32_t umtx_loadAcquire(u_atomic_int32_t &var) {
+    return InterlockedCompareExchange(&var, 0, 0);
+}
+
+inline void umtx_storeRelease(u_atomic_int32_t &var, int32_t val) {
+    InterlockedExchange(&var, val);
+}
+
+
+inline int32_t umtx_atomic_inc(u_atomic_int32_t *var) {
+    return InterlockedIncrement(var);
+}
+
+inline int32_t umtx_atomic_dec(u_atomic_int32_t *var) {
+    return InterlockedDecrement(var);
+}
+U_NAMESPACE_END
+
+
+#elif U_HAVE_CLANG_ATOMICS
+/*
+ *  Clang __c11 atomic built-ins
+ */
+
+U_NAMESPACE_BEGIN
+typedef _Atomic(int32_t) u_atomic_int32_t;
+#define ATOMIC_INT32_T_INITIALIZER(val) val
+
+inline int32_t umtx_loadAcquire(u_atomic_int32_t &var) {
+     return __c11_atomic_load(&var, __ATOMIC_ACQUIRE);
+}
+
+inline void umtx_storeRelease(u_atomic_int32_t &var, int32_t val) {
+   return __c11_atomic_store(&var, val, __ATOMIC_RELEASE);
+}
+
+inline int32_t umtx_atomic_inc(u_atomic_int32_t *var) {
+    return __c11_atomic_fetch_add(var, 1, __ATOMIC_SEQ_CST) + 1;
+}
+
+inline int32_t umtx_atomic_dec(u_atomic_int32_t *var) {
+    return __c11_atomic_fetch_sub(var, 1, __ATOMIC_SEQ_CST) - 1;
+}
+U_NAMESPACE_END
+
+
+#elif U_HAVE_GCC_ATOMICS
+/*
+ * gcc atomic ops. These are available on several other compilers as well.
+ */
+
+U_NAMESPACE_BEGIN
+typedef int32_t u_atomic_int32_t;
+#define ATOMIC_INT32_T_INITIALIZER(val) val
+
+inline int32_t umtx_loadAcquire(u_atomic_int32_t &var) {
+    int32_t val = var;
+    __sync_synchronize();
+    return val;
+}
+
+inline void umtx_storeRelease(u_atomic_int32_t &var, int32_t val) {
+    __sync_synchronize();
+    var = val;
+}
+
+inline int32_t umtx_atomic_inc(u_atomic_int32_t *p)  {
+   return __sync_add_and_fetch(p, 1);
+}
+
+inline int32_t umtx_atomic_dec(u_atomic_int32_t *p)  {
+   return __sync_sub_and_fetch(p, 1);
+}
+U_NAMESPACE_END
+
+#else
+
+/*
+ * Unknown Platform. Use out-of-line functions, which in turn use mutexes.
+ *                   Slow but correct.
+ */
+
+#define U_NO_PLATFORM_ATOMICS
+
+U_NAMESPACE_BEGIN
+typedef int32_t u_atomic_int32_t;
+#define ATOMIC_INT32_T_INITIALIZER(val) val
+
+U_COMMON_API int32_t U_EXPORT2 
+umtx_loadAcquire(u_atomic_int32_t &var);
+
+U_COMMON_API void U_EXPORT2 
+umtx_storeRelease(u_atomic_int32_t &var, int32_t val);
+
+U_COMMON_API int32_t U_EXPORT2 
+umtx_atomic_inc(u_atomic_int32_t *p);
+
+U_COMMON_API int32_t U_EXPORT2 
+umtx_atomic_dec(u_atomic_int32_t *p);
+
+U_NAMESPACE_END
+
+#endif  /* Low Level Atomic Ops Platfrom Chain */
+
+
+
+/*************************************************************************************************
+ *
+ *  UInitOnce Definitions.
+ *     These are platform neutral.
+ *
+ *************************************************************************************************/
+
+U_NAMESPACE_BEGIN
+
+struct UInitOnce {
+    u_atomic_int32_t   fState;
+    UErrorCode       fErrCode;
+    void reset() {fState = 0;};
+    UBool isReset() {return umtx_loadAcquire(fState) == 0;};
+// Note: isReset() is used by service registration code.
+//                 Thread safety of this usage needs review.
+};
+
+#define U_INITONCE_INITIALIZER {ATOMIC_INT32_T_INITIALIZER(0), U_ZERO_ERROR}
+
+
+U_COMMON_API UBool U_EXPORT2 umtx_initImplPreInit(UInitOnce &);
+U_COMMON_API void  U_EXPORT2 umtx_initImplPostInit(UInitOnce &);
+
+template<class T> void umtx_initOnce(UInitOnce &uio, T *obj, void (U_CALLCONV T::*fp)()) {
+    if (umtx_loadAcquire(uio.fState) == 2) {
+        return;
+    }
+    if (umtx_initImplPreInit(uio)) {
+        (obj->*fp)();
+        umtx_initImplPostInit(uio);
+    }
+}
+
+
+// umtx_initOnce variant for plain functions, or static class functions.
+//               No context parameter.
+inline void umtx_initOnce(UInitOnce &uio, void (U_CALLCONV *fp)()) {
+    if (umtx_loadAcquire(uio.fState) == 2) {
+        return;
+    }
+    if (umtx_initImplPreInit(uio)) {
+        (*fp)();
+        umtx_initImplPostInit(uio);
+    }
+}
+
+// umtx_initOnce variant for plain functions, or static class functions.
+//               With ErrorCode, No context parameter.
+inline void umtx_initOnce(UInitOnce &uio, void (U_CALLCONV *fp)(UErrorCode &), UErrorCode &errCode) {
+    if (U_FAILURE(errCode)) {
+        return;
+    }
+    if (umtx_loadAcquire(uio.fState) != 2 && umtx_initImplPreInit(uio)) {
+        // We run the initialization.
+        (*fp)(errCode);
+        uio.fErrCode = errCode;
+        umtx_initImplPostInit(uio);
+    } else {
+        // Someone else already ran the initialization.
+        if (U_FAILURE(uio.fErrCode)) {
+            errCode = uio.fErrCode;
+        }
+    }
+}
+
+// umtx_initOnce variant for plain functions, or static class functions,
+//               with a context parameter.
+template<class T> void umtx_initOnce(UInitOnce &uio, void (U_CALLCONV *fp)(T), T context) {
+    if (umtx_loadAcquire(uio.fState) == 2) {
+        return;
+    }
+    if (umtx_initImplPreInit(uio)) {
+        (*fp)(context);
+        umtx_initImplPostInit(uio);
+    }
+}
+
+// umtx_initOnce variant for plain functions, or static class functions,
+//               with a context parameter and an error code.
+template<class T> void umtx_initOnce(UInitOnce &uio, void (U_CALLCONV *fp)(T, UErrorCode &), T context, UErrorCode &errCode) {
+    if (U_FAILURE(errCode)) {
+        return;
+    }
+    if (umtx_loadAcquire(uio.fState) != 2 && umtx_initImplPreInit(uio)) {
+        // We run the initialization.
+        (*fp)(context, errCode);
+        uio.fErrCode = errCode;
+        umtx_initImplPostInit(uio);
+    } else {
+        // Someone else already ran the initialization.
+        if (U_FAILURE(uio.fErrCode)) {
+            errCode = uio.fErrCode;
+        }
+    }
+}
+
+U_NAMESPACE_END
+
+
+
+/*************************************************************************************************
+ *
+ *  Mutex Definitions. Platform Dependent, #if platform chain follows.
+ *         TODO:  Add a C++11 version.
+ *                Need to convert all mutex using files to C++ first.
+ *
+ *************************************************************************************************/
+
+#if defined(U_USER_MUTEX_H)
+// #inlcude "U_USER_MUTEX_H"
+#include U_MUTEX_XSTR(U_USER_MUTEX_H)
+
+#elif U_PLATFORM_USES_ONLY_WIN32_API
+
+/* For CRITICAL_SECTION */
+
+/*
+ *   Note: there is an earlier include of windows.h in this file, but it is in
+ *         different conditionals.
+ *         This one is needed if we are using C++11 for atomic ops, but
+ *         win32 APIs for Critical Sections.
+ */
+
+#ifndef WIN32_LEAN_AND_MEAN
+# define WIN32_LEAN_AND_MEAN
+#endif
+# define VC_EXTRALEAN
+# define NOUSER
+# define NOSERVICE
+# define NOIME
+# define NOMCX
+# ifndef NOMINMAX
+# define NOMINMAX
+# endif
+# include <windows.h>
+
+
+typedef struct UMutex {
+    icu::UInitOnce    fInitOnce;
+    CRITICAL_SECTION  fCS;
+} UMutex;
+
+/* Initializer for a static UMUTEX. Deliberately contains no value for the
+ *  CRITICAL_SECTION.
+ */
+#define U_MUTEX_INITIALIZER {U_INITONCE_INITIALIZER}
+
+struct UConditionVar {
+    HANDLE           fEntryGate;
+    HANDLE           fExitGate;
+    int32_t          fWaitCount;
+};
+
+#define U_CONDITION_INITIALIZER {NULL, NULL, 0}
+    
+
+
+#elif U_PLATFORM_IMPLEMENTS_POSIX
+
+/*
+ *  POSIX platform
+ */
+
+#include <pthread.h>
+
+struct UMutex {
+    pthread_mutex_t  fMutex;
+};
+typedef struct UMutex UMutex;
+#define U_MUTEX_INITIALIZER  {PTHREAD_MUTEX_INITIALIZER}
+
+struct UConditionVar {
+    pthread_cond_t   fCondition;
+};
+#define U_CONDITION_INITIALIZER {PTHREAD_COND_INITIALIZER}
+
+#else
+
+/*
+ *  Unknow platform type.
+ *      This is an error condition. ICU requires mutexes.
+ */
+
+#error Unknown Platform.
+
+#endif
+
+
+
+/**************************************************************************************
+ *
+ *  Mutex Implementation function declaratations.
+ *     Declarations are platform neutral.
+ *     Implementations, in umutex.cpp, are platform specific.
+ *
+ ************************************************************************************/
+
+/* Lock a mutex.
+ * @param mutex The given mutex to be locked.  Pass NULL to specify
+ *              the global ICU mutex.  Recursive locks are an error
+ *              and may cause a deadlock on some platforms.
+ */
+U_INTERNAL void U_EXPORT2 umtx_lock(UMutex* mutex);
+
+/* Unlock a mutex.
+ * @param mutex The given mutex to be unlocked.  Pass NULL to specify
+ *              the global ICU mutex.
+ */
+U_INTERNAL void U_EXPORT2 umtx_unlock (UMutex* mutex);
+
+/*
+ * Wait on a condition variable.
+ * The calling thread will unlock the mutex and wait on the condition variable.
+ * The mutex must be locked by the calling thread when invoking this function.
+ *
+ * @param cond the condition variable to wait on.
+ * @param mutex the associated mutex.
+ */
+
+U_INTERNAL void U_EXPORT2 umtx_condWait(UConditionVar *cond, UMutex *mutex);
+
+
+/*
+ * Broadcast wakeup of all threads waiting on a Condition.
+ * The associated mutex must be locked by the calling thread when calling
+ * this function; this is a temporary ICU restriction.
+ * 
+ * @param cond the condition variable.
+ */
+U_INTERNAL void U_EXPORT2 umtx_condBroadcast(UConditionVar *cond);
+
+/*
+ * Signal a condition variable, waking up one waiting thread.
+ * CAUTION: Do not use. Place holder only. Not implemented for Windows.
+ */
+U_INTERNAL void U_EXPORT2 umtx_condSignal(UConditionVar *cond);
+
+#endif /* UMUTEX_H */
+/*eof*/
diff --git a/vendor/icu/src/uprops.h b/vendor/icu/src/uprops.h
new file mode 100644
index 0000000000..a0993659aa
--- /dev/null
+++ b/vendor/icu/src/uprops.h
@@ -0,0 +1,463 @@
+// © 2016 and later: Unicode, Inc. and others.
+// License & terms of use: http://www.unicode.org/copyright.html
+/*
+*******************************************************************************
+*
+*   Copyright (C) 2002-2016, International Business Machines
+*   Corporation and others.  All Rights Reserved.
+*
+*******************************************************************************
+*   file name:  uprops.h
+*   encoding:   UTF-8
+*   tab size:   8 (not used)
+*   indentation:4
+*
+*   created on: 2002feb24
+*   created by: Markus W. Scherer
+*
+*   Constants for mostly non-core Unicode character properties
+*   stored in uprops.icu.
+*/
+
+#ifndef __UPROPS_H__
+#define __UPROPS_H__
+
+#include <unicode/utypes.h>
+#include <unicode/uset.h>
+#include "uset_imp.h"
+#include "udataswp.h"
+
+/* indexes[] entries */
+enum {
+    UPROPS_PROPS32_INDEX,
+    UPROPS_EXCEPTIONS_INDEX,
+    UPROPS_EXCEPTIONS_TOP_INDEX,
+
+    UPROPS_ADDITIONAL_TRIE_INDEX,
+    UPROPS_ADDITIONAL_VECTORS_INDEX,
+    UPROPS_ADDITIONAL_VECTORS_COLUMNS_INDEX,
+
+    UPROPS_SCRIPT_EXTENSIONS_INDEX,
+
+    UPROPS_RESERVED_INDEX_7,
+    UPROPS_RESERVED_INDEX_8,
+
+    /* size of the data file (number of 32-bit units after the header) */
+    UPROPS_DATA_TOP_INDEX,
+
+    /* maximum values for code values in vector word 0 */
+    UPROPS_MAX_VALUES_INDEX=10,
+    /* maximum values for code values in vector word 2 */
+    UPROPS_MAX_VALUES_2_INDEX,
+
+    UPROPS_INDEX_COUNT=16
+};
+
+/* definitions for the main properties words */
+enum {
+    /* general category shift==0                                0 (5 bits) */
+    /* reserved                                                 5 (1 bit) */
+    UPROPS_NUMERIC_TYPE_VALUE_SHIFT=6                       /*  6 (10 bits) */
+};
+
+#define GET_CATEGORY(props) ((props)&0x1f)
+#define CAT_MASK(props) U_MASK(GET_CATEGORY(props))
+
+#define GET_NUMERIC_TYPE_VALUE(props) ((props)>>UPROPS_NUMERIC_TYPE_VALUE_SHIFT)
+
+/* constants for the storage form of numeric types and values */
+enum {
+    /** No numeric value. */
+    UPROPS_NTV_NONE=0,
+    /** Decimal digits: nv=0..9 */
+    UPROPS_NTV_DECIMAL_START=1,
+    /** Other digits: nv=0..9 */
+    UPROPS_NTV_DIGIT_START=11,
+    /** Small integers: nv=0..154 */
+    UPROPS_NTV_NUMERIC_START=21,
+    /** Fractions: ((ntv>>4)-12) / ((ntv&0xf)+1) = -1..17 / 1..16 */
+    UPROPS_NTV_FRACTION_START=0xb0,
+    /**
+     * Large integers:
+     * ((ntv>>5)-14) * 10^((ntv&0x1f)+2) = (1..9)*(10^2..10^33)
+     * (only one significant decimal digit)
+     */
+    UPROPS_NTV_LARGE_START=0x1e0,
+    /**
+     * Sexagesimal numbers:
+     * ((ntv>>2)-0xbf) * 60^((ntv&3)+1) = (1..9)*(60^1..60^4)
+     */
+    UPROPS_NTV_BASE60_START=0x300,
+    /**
+     * Fraction-20 values:
+     * frac20 = ntv-0x324 = 0..0x17 -> 1|3|5|7 / 20|40|80|160|320|640
+     * numerator: num = 2*(frac20&3)+1
+     * denominator: den = 20<<(frac20>>2)
+     */
+    UPROPS_NTV_FRACTION20_START=UPROPS_NTV_BASE60_START+36,  // 0x300+9*4=0x324
+    /** No numeric value (yet). */
+    UPROPS_NTV_RESERVED_START=UPROPS_NTV_FRACTION20_START+24,  // 0x324+6*4=0x34c
+
+    UPROPS_NTV_MAX_SMALL_INT=UPROPS_NTV_FRACTION_START-UPROPS_NTV_NUMERIC_START-1
+};
+
+#define UPROPS_NTV_GET_TYPE(ntv) \
+    ((ntv==UPROPS_NTV_NONE) ? U_NT_NONE : \
+    (ntv<UPROPS_NTV_DIGIT_START) ?  U_NT_DECIMAL : \
+    (ntv<UPROPS_NTV_NUMERIC_START) ? U_NT_DIGIT : \
+    U_NT_NUMERIC)
+
+/* number of properties vector words */
+#define UPROPS_VECTOR_WORDS     3
+
+/*
+ * Properties in vector word 0
+ * Bits
+ * 31..24   DerivedAge version major/minor one nibble each
+ * 23..22   3..1: Bits 7..0 = Script_Extensions index
+ *             3: Script value from Script_Extensions
+ *             2: Script=Inherited
+ *             1: Script=Common
+ *             0: Script=bits 7..0
+ * 21..20   reserved
+ * 19..17   East Asian Width
+ * 16.. 8   UBlockCode
+ *  7.. 0   UScriptCode, or index to Script_Extensions
+ */
+
+/* derived age: one nibble each for major and minor version numbers */
+#define UPROPS_AGE_MASK         0xff000000
+#define UPROPS_AGE_SHIFT        24
+
+/* Script_Extensions: mask includes Script */
+#define UPROPS_SCRIPT_X_MASK    0x00c000ff
+#define UPROPS_SCRIPT_X_SHIFT   22
+
+#define UPROPS_EA_MASK          0x000e0000
+#define UPROPS_EA_SHIFT         17
+
+#define UPROPS_BLOCK_MASK       0x0001ff00
+#define UPROPS_BLOCK_SHIFT      8
+
+#define UPROPS_SCRIPT_MASK      0x000000ff
+
+/* UPROPS_SCRIPT_X_WITH_COMMON must be the lowest value that involves Script_Extensions. */
+#define UPROPS_SCRIPT_X_WITH_COMMON     0x400000
+#define UPROPS_SCRIPT_X_WITH_INHERITED  0x800000
+#define UPROPS_SCRIPT_X_WITH_OTHER      0xc00000
+
+/*
+ * Properties in vector word 1
+ * Each bit encodes one binary property.
+ * The following constants represent the bit number, use 1<<UPROPS_XYZ.
+ * UPROPS_BINARY_1_TOP<=32!
+ *
+ * Keep this list of property enums in sync with
+ * propListNames[] in icu/source/tools/genprops/props2.c!
+ *
+ * ICU 2.6/uprops format version 3.2 stores full properties instead of "Other_".
+ */
+enum {
+    UPROPS_WHITE_SPACE,
+    UPROPS_DASH,
+    UPROPS_HYPHEN,
+    UPROPS_QUOTATION_MARK,
+    UPROPS_TERMINAL_PUNCTUATION,
+    UPROPS_MATH,
+    UPROPS_HEX_DIGIT,
+    UPROPS_ASCII_HEX_DIGIT,
+    UPROPS_ALPHABETIC,
+    UPROPS_IDEOGRAPHIC,
+    UPROPS_DIACRITIC,
+    UPROPS_EXTENDER,
+    UPROPS_NONCHARACTER_CODE_POINT,
+    UPROPS_GRAPHEME_EXTEND,
+    UPROPS_GRAPHEME_LINK,
+    UPROPS_IDS_BINARY_OPERATOR,
+    UPROPS_IDS_TRINARY_OPERATOR,
+    UPROPS_RADICAL,
+    UPROPS_UNIFIED_IDEOGRAPH,
+    UPROPS_DEFAULT_IGNORABLE_CODE_POINT,
+    UPROPS_DEPRECATED,
+    UPROPS_LOGICAL_ORDER_EXCEPTION,
+    UPROPS_XID_START,
+    UPROPS_XID_CONTINUE,
+    UPROPS_ID_START,                            /* ICU 2.6, uprops format version 3.2 */
+    UPROPS_ID_CONTINUE,
+    UPROPS_GRAPHEME_BASE,
+    UPROPS_S_TERM,                              /* new in ICU 3.0 and Unicode 4.0.1 */
+    UPROPS_VARIATION_SELECTOR,
+    UPROPS_PATTERN_SYNTAX,                      /* new in ICU 3.4 and Unicode 4.1 */
+    UPROPS_PATTERN_WHITE_SPACE,
+    UPROPS_PREPENDED_CONCATENATION_MARK,        // new in ICU 60 and Unicode 10
+    UPROPS_BINARY_1_TOP                         /* ==32 - full! */
+};
+
+/*
+ * Properties in vector word 2
+ * Bits
+ * 31..27   http://www.unicode.org/reports/tr51/#Emoji_Properties
+ *     26   reserved
+ * 25..20   Line Break
+ * 19..15   Sentence Break
+ * 14..10   Word Break
+ *  9.. 5   Grapheme Cluster Break
+ *  4.. 0   Decomposition Type
+ */
+enum {
+    UPROPS_2_EMOJI_COMPONENT=27,
+    UPROPS_2_EMOJI,
+    UPROPS_2_EMOJI_PRESENTATION,
+    UPROPS_2_EMOJI_MODIFIER,
+    UPROPS_2_EMOJI_MODIFIER_BASE
+};
+
+#define UPROPS_LB_MASK          0x03f00000
+#define UPROPS_LB_SHIFT         20
+
+#define UPROPS_SB_MASK          0x000f8000
+#define UPROPS_SB_SHIFT         15
+
+#define UPROPS_WB_MASK          0x00007c00
+#define UPROPS_WB_SHIFT         10
+
+#define UPROPS_GCB_MASK         0x000003e0
+#define UPROPS_GCB_SHIFT        5
+
+#define UPROPS_DT_MASK          0x0000001f
+
+/**
+ * Gets the main properties value for a code point.
+ * Implemented in uchar.c for uprops.cpp.
+ */
+U_CFUNC uint32_t
+u_getMainProperties(UChar32 c);
+
+/**
+ * Get a properties vector word for a code point.
+ * Implemented in uchar.c for uprops.cpp.
+ * @return 0 if no data or illegal argument
+ */
+U_CFUNC uint32_t
+u_getUnicodeProperties(UChar32 c, int32_t column);
+
+/**
+ * Get the the maximum values for some enum/int properties.
+ * Use the same column numbers as for u_getUnicodeProperties().
+ * The returned value will contain maximum values stored in the same bit fields
+ * as where the enum values are stored in the u_getUnicodeProperties()
+ * return values for the same columns.
+ *
+ * Valid columns are those for properties words that contain enumerated values.
+ * (ICU 2.6: columns 0 and 2)
+ * For other column numbers, this function will return 0.
+ *
+ * @internal
+ */
+U_CFUNC int32_t
+uprv_getMaxValues(int32_t column);
+
+/**
+ * Checks if c is alphabetic, or a decimal digit; implements UCHAR_POSIX_ALNUM.
+ * @internal
+ */
+U_CFUNC UBool
+u_isalnumPOSIX(UChar32 c);
+
+/**
+ * Checks if c is in
+ * [^\p{space}\p{gc=Control}\p{gc=Surrogate}\p{gc=Unassigned}]
+ * with space=\p{Whitespace} and Control=Cc.
+ * Implements UCHAR_POSIX_GRAPH.
+ * @internal
+ */
+U_CFUNC UBool
+u_isgraphPOSIX(UChar32 c);
+
+/**
+ * Checks if c is in \p{graph}\p{blank} - \p{cntrl}.
+ * Implements UCHAR_POSIX_PRINT.
+ * @internal
+ */
+U_CFUNC UBool
+u_isprintPOSIX(UChar32 c);
+
+/** Turn a bit index into a bit flag. @internal */
+#define FLAG(n) ((uint32_t)1<<(n))
+
+/** Flags for general categories in the order of UCharCategory. @internal */
+#define _Cn     FLAG(U_GENERAL_OTHER_TYPES)
+#define _Lu     FLAG(U_UPPERCASE_LETTER)
+#define _Ll     FLAG(U_LOWERCASE_LETTER)
+#define _Lt     FLAG(U_TITLECASE_LETTER)
+#define _Lm     FLAG(U_MODIFIER_LETTER)
+/* #define _Lo     FLAG(U_OTHER_LETTER) -- conflicts with MS Visual Studio 9.0 xiosbase */
+#define _Mn     FLAG(U_NON_SPACING_MARK)
+#define _Me     FLAG(U_ENCLOSING_MARK)
+#define _Mc     FLAG(U_COMBINING_SPACING_MARK)
+#define _Nd     FLAG(U_DECIMAL_DIGIT_NUMBER)
+#define _Nl     FLAG(U_LETTER_NUMBER)
+#define _No     FLAG(U_OTHER_NUMBER)
+#define _Zs     FLAG(U_SPACE_SEPARATOR)
+#define _Zl     FLAG(U_LINE_SEPARATOR)
+#define _Zp     FLAG(U_PARAGRAPH_SEPARATOR)
+#define _Cc     FLAG(U_CONTROL_CHAR)
+#define _Cf     FLAG(U_FORMAT_CHAR)
+#define _Co     FLAG(U_PRIVATE_USE_CHAR)
+#define _Cs     FLAG(U_SURROGATE)
+#define _Pd     FLAG(U_DASH_PUNCTUATION)
+#define _Ps     FLAG(U_START_PUNCTUATION)
+/* #define _Pe     FLAG(U_END_PUNCTUATION) -- conflicts with MS Visual Studio 9.0 xlocnum */
+/* #define _Pc     FLAG(U_CONNECTOR_PUNCTUATION) -- conflicts with MS Visual Studio 9.0 streambuf */
+#define _Po     FLAG(U_OTHER_PUNCTUATION)
+#define _Sm     FLAG(U_MATH_SYMBOL)
+#define _Sc     FLAG(U_CURRENCY_SYMBOL)
+#define _Sk     FLAG(U_MODIFIER_SYMBOL)
+#define _So     FLAG(U_OTHER_SYMBOL)
+#define _Pi     FLAG(U_INITIAL_PUNCTUATION)
+/* #define _Pf     FLAG(U_FINAL_PUNCTUATION) -- conflicts with MS Visual Studio 9.0 streambuf */
+
+/** Some code points. @internal */
+enum {
+    TAB     =0x0009,
+    LF      =0x000a,
+    FF      =0x000c,
+    CR      =0x000d,
+    U_A     =0x0041,
+    U_F     =0x0046,
+    U_Z     =0x005a,
+    U_a     =0x0061,
+    U_f     =0x0066,
+    U_z     =0x007a,
+    DEL     =0x007f,
+    NL      =0x0085,
+    NBSP    =0x00a0,
+    CGJ     =0x034f,
+    FIGURESP=0x2007,
+    HAIRSP  =0x200a,
+    ZWNJ    =0x200c,
+    ZWJ     =0x200d,
+    RLM     =0x200f,
+    NNBSP   =0x202f,
+    WJ      =0x2060,
+    INHSWAP =0x206a,
+    NOMDIG  =0x206f,
+    U_FW_A  =0xff21,
+    U_FW_F  =0xff26,
+    U_FW_Z  =0xff3a,
+    U_FW_a  =0xff41,
+    U_FW_f  =0xff46,
+    U_FW_z  =0xff5a,
+    ZWNBSP  =0xfeff
+};
+
+/**
+ * Get the maximum length of a (regular/1.0/extended) character name.
+ * @return 0 if no character names available.
+ */
+U_CAPI int32_t U_EXPORT2
+uprv_getMaxCharNameLength(void);
+
+/**
+ * Fills set with characters that are used in Unicode character names.
+ * Includes all characters that are used in regular/Unicode 1.0/extended names.
+ * Just empties the set if no character names are available.
+ * @param sa USetAdder to receive characters.
+ */
+U_CAPI void U_EXPORT2
+uprv_getCharNameCharacters(const USetAdder *sa);
+
+/**
+ * Constants for which data and implementation files provide which properties.
+ * Used by UnicodeSet for service-specific property enumeration.
+ * @internal
+ */
+enum UPropertySource {
+    /** No source, not a supported property. */
+    UPROPS_SRC_NONE,
+    /** From uchar.c/uprops.icu main trie */
+    UPROPS_SRC_CHAR,
+    /** From uchar.c/uprops.icu properties vectors trie */
+    UPROPS_SRC_PROPSVEC,
+    /** From unames.c/unames.icu */
+    UPROPS_SRC_NAMES,
+    /** From ucase.c/ucase.icu */
+    UPROPS_SRC_CASE,
+    /** From ubidi_props.c/ubidi.icu */
+    UPROPS_SRC_BIDI,
+    /** From uchar.c/uprops.icu main trie as well as properties vectors trie */
+    UPROPS_SRC_CHAR_AND_PROPSVEC,
+    /** From ucase.c/ucase.icu as well as unorm.cpp/unorm.icu */
+    UPROPS_SRC_CASE_AND_NORM,
+    /** From normalizer2impl.cpp/nfc.nrm */
+    UPROPS_SRC_NFC,
+    /** From normalizer2impl.cpp/nfkc.nrm */
+    UPROPS_SRC_NFKC,
+    /** From normalizer2impl.cpp/nfkc_cf.nrm */
+    UPROPS_SRC_NFKC_CF,
+    /** From normalizer2impl.cpp/nfc.nrm canonical iterator data */
+    UPROPS_SRC_NFC_CANON_ITER,
+    /** One more than the highest UPropertySource (UPROPS_SRC_) constant. */
+    UPROPS_SRC_COUNT
+};
+typedef enum UPropertySource UPropertySource;
+
+/**
+ * @see UPropertySource
+ * @internal
+ */
+U_CFUNC UPropertySource U_EXPORT2
+uprops_getSource(UProperty which);
+
+/**
+ * Enumerate uprops.icu's main data trie and add the
+ * start of each range of same properties to the set.
+ * @internal
+ */
+U_CFUNC void U_EXPORT2
+uchar_addPropertyStarts(const USetAdder *sa, UErrorCode *pErrorCode);
+
+/**
+ * Enumerate uprops.icu's properties vectors trie and add the
+ * start of each range of same properties to the set.
+ * @internal
+ */
+U_CFUNC void U_EXPORT2
+upropsvec_addPropertyStarts(const USetAdder *sa, UErrorCode *pErrorCode);
+
+/**
+ * Return a set of characters for property enumeration.
+ * For each two consecutive characters (start, limit) in the set,
+ * all of the properties for start..limit-1 are all the same.
+ *
+ * @param sa USetAdder to receive result. Existing contents are lost.
+ * @internal
+ */
+/*U_CFUNC void U_EXPORT2
+uprv_getInclusions(const USetAdder *sa, UErrorCode *pErrorCode);
+*/
+
+/**
+ * Swap the ICU Unicode character names file. See uchar.c.
+ * @internal
+ */
+U_CAPI int32_t U_EXPORT2
+uchar_swapNames(const UDataSwapper *ds,
+                const void *inData, int32_t length, void *outData,
+                UErrorCode *pErrorCode);
+
+#ifdef __cplusplus
+
+U_NAMESPACE_BEGIN
+
+class UnicodeSet;
+
+// implemented in uniset_props.cpp
+U_CFUNC UnicodeSet *
+uniset_getUnicode32Instance(UErrorCode &errorCode);
+
+U_NAMESPACE_END
+
+#endif
+
+#endif
diff --git a/vendor/icu/src/uset_imp.h b/vendor/icu/src/uset_imp.h
new file mode 100644
index 0000000000..2b98d7c36d
--- /dev/null
+++ b/vendor/icu/src/uset_imp.h
@@ -0,0 +1,62 @@
+// © 2016 and later: Unicode, Inc. and others.
+// License & terms of use: http://www.unicode.org/copyright.html
+/*
+*******************************************************************************
+*
+*   Copyright (C) 2004-2007, International Business Machines
+*   Corporation and others.  All Rights Reserved.
+*
+*******************************************************************************
+*   file name:  uset_imp.h
+*   encoding:   UTF-8
+*   tab size:   8 (not used)
+*   indentation:4
+*
+*   created on: 2004sep07
+*   created by: Markus W. Scherer
+*
+*   Internal USet definitions.
+*/
+
+#ifndef __USET_IMP_H__
+#define __USET_IMP_H__
+
+#include <unicode/utypes.h>
+#include <unicode/uset.h>
+
+U_CDECL_BEGIN
+
+typedef void U_CALLCONV
+USetAdd(USet *set, UChar32 c);
+
+typedef void U_CALLCONV
+USetAddRange(USet *set, UChar32 start, UChar32 end);
+
+typedef void U_CALLCONV
+USetAddString(USet *set, const UChar *str, int32_t length);
+
+typedef void U_CALLCONV
+USetRemove(USet *set, UChar32 c);
+
+typedef void U_CALLCONV
+USetRemoveRange(USet *set, UChar32 start, UChar32 end);
+
+/**
+ * Interface for adding items to a USet, to keep low-level code from
+ * statically depending on the USet implementation.
+ * Calls will look like sa->add(sa->set, c);
+ */
+struct USetAdder {
+    USet *set;
+    USetAdd *add;
+    USetAddRange *addRange;
+    USetAddString *addString;
+    USetRemove *remove;
+    USetRemoveRange *removeRange;
+};
+typedef struct USetAdder USetAdder;
+
+U_CDECL_END
+
+#endif
+
diff --git a/vendor/icu/src/ushape.cpp b/vendor/icu/src/ushape.cpp
new file mode 100644
index 0000000000..a3b21770b9
--- /dev/null
+++ b/vendor/icu/src/ushape.cpp
@@ -0,0 +1,1728 @@
+// © 2016 and later: Unicode, Inc. and others.
+// License & terms of use: http://www.unicode.org/copyright.html
+/*
+ ******************************************************************************
+ *
+ *   Copyright (C) 2000-2016, International Business Machines
+ *   Corporation and others.  All Rights Reserved.
+ *
+ ******************************************************************************
+ *   file name:  ushape.cpp
+ *   encoding:   UTF-8
+ *   tab size:   8 (not used)
+ *   indentation:4
+ *
+ *   created on: 2000jun29
+ *   created by: Markus W. Scherer
+ *
+ *   Arabic letter shaping implemented by Ayman Roshdy
+ */
+
+#include <unicode/utypes.h>
+#include <unicode/uchar.h>
+#include <unicode/ustring.h>
+#include <unicode/ushape.h>
+#include "cmemory.h"
+#include "putilimp.h"
+#include "ustr_imp.h"
+#include "ubidi_props.h"
+#include "uassert.h"
+
+/*
+ * This implementation is designed for 16-bit Unicode strings.
+ * The main assumption is that the Arabic characters and their
+ * presentation forms each fit into a single UChar.
+ * With UTF-8, they occupy 2 or 3 bytes, and more than the ASCII
+ * characters.
+ */
+
+/*
+ * ### TODO in general for letter shaping:
+ * - the letter shaping code is UTF-16-unaware; needs update
+ *   + especially invertBuffer()?!
+ * - needs to handle the "Arabic Tail" that is used in some legacy codepages
+ *   as a glyph fragment of wide-glyph letters
+ *   + IBM Unicode conversion tables map it to U+200B (ZWSP)
+ *   + IBM Egypt has proposed to encode the tail in Unicode among Arabic Presentation Forms
+ *   + Unicode 3.2 added U+FE73 ARABIC TAIL FRAGMENT
+ */
+
+/* definitions for Arabic letter shaping ------------------------------------ */
+
+#define IRRELEVANT 4
+#define LAMTYPE    16
+#define ALEFTYPE   32
+#define LINKR      1
+#define LINKL      2
+#define APRESENT   8
+#define SHADDA     64
+#define CSHADDA    128
+#define COMBINE    (SHADDA+CSHADDA)
+
+#define HAMZAFE_CHAR       0xfe80
+#define HAMZA06_CHAR       0x0621
+#define YEH_HAMZA_CHAR     0x0626
+#define YEH_HAMZAFE_CHAR   0xFE89
+#define LAMALEF_SPACE_SUB  0xFFFF
+#define TASHKEEL_SPACE_SUB 0xFFFE
+#define NEW_TAIL_CHAR      0xFE73
+#define OLD_TAIL_CHAR      0x200B
+#define LAM_CHAR           0x0644
+#define SPACE_CHAR         0x0020
+#define SHADDA_CHAR        0xFE7C
+#define TATWEEL_CHAR       0x0640
+#define SHADDA_TATWEEL_CHAR  0xFE7D
+#define SHADDA06_CHAR      0x0651
+
+#define SHAPE_MODE   0
+#define DESHAPE_MODE 1
+
+struct uShapeVariables {
+     UChar tailChar;
+     uint32_t uShapeLamalefBegin;
+     uint32_t uShapeLamalefEnd;
+     uint32_t uShapeTashkeelBegin;
+     uint32_t uShapeTashkeelEnd;
+     int spacesRelativeToTextBeginEnd;
+};
+
+static const uint8_t tailFamilyIsolatedFinal[] = {
+    /* FEB1 */ 1,
+    /* FEB2 */ 1,
+    /* FEB3 */ 0,
+    /* FEB4 */ 0,
+    /* FEB5 */ 1,
+    /* FEB6 */ 1,
+    /* FEB7 */ 0,
+    /* FEB8 */ 0,
+    /* FEB9 */ 1,
+    /* FEBA */ 1,
+    /* FEBB */ 0,
+    /* FEBC */ 0,
+    /* FEBD */ 1,
+    /* FEBE */ 1
+};
+
+static const uint8_t tashkeelMedial[] = {
+    /* FE70 */ 0,
+    /* FE71 */ 1,
+    /* FE72 */ 0,
+    /* FE73 */ 0,
+    /* FE74 */ 0,
+    /* FE75 */ 0,
+    /* FE76 */ 0,
+    /* FE77 */ 1,
+    /* FE78 */ 0,
+    /* FE79 */ 1,
+    /* FE7A */ 0,
+    /* FE7B */ 1,
+    /* FE7C */ 0,
+    /* FE7D */ 1,
+    /* FE7E */ 0,
+    /* FE7F */ 1
+};
+
+static const UChar yehHamzaToYeh[] =
+{
+/* isolated*/ 0xFEEF,
+/* final   */ 0xFEF0
+};
+
+static const uint8_t IrrelevantPos[] = {
+    0x0, 0x2, 0x4, 0x6,
+    0x8, 0xA, 0xC, 0xE
+};
+
+
+static const UChar convertLamAlef[] =
+{
+/*FEF5*/    0x0622,
+/*FEF6*/    0x0622,
+/*FEF7*/    0x0623,
+/*FEF8*/    0x0623,
+/*FEF9*/    0x0625,
+/*FEFA*/    0x0625,
+/*FEFB*/    0x0627,
+/*FEFC*/    0x0627
+};
+
+static const UChar araLink[178]=
+{
+  1           + 32 + 256 * 0x11,/*0x0622*/
+  1           + 32 + 256 * 0x13,/*0x0623*/
+  1                + 256 * 0x15,/*0x0624*/
+  1           + 32 + 256 * 0x17,/*0x0625*/
+  1 + 2            + 256 * 0x19,/*0x0626*/
+  1           + 32 + 256 * 0x1D,/*0x0627*/
+  1 + 2            + 256 * 0x1F,/*0x0628*/
+  1                + 256 * 0x23,/*0x0629*/
+  1 + 2            + 256 * 0x25,/*0x062A*/
+  1 + 2            + 256 * 0x29,/*0x062B*/
+  1 + 2            + 256 * 0x2D,/*0x062C*/
+  1 + 2            + 256 * 0x31,/*0x062D*/
+  1 + 2            + 256 * 0x35,/*0x062E*/
+  1                + 256 * 0x39,/*0x062F*/
+  1                + 256 * 0x3B,/*0x0630*/
+  1                + 256 * 0x3D,/*0x0631*/
+  1                + 256 * 0x3F,/*0x0632*/
+  1 + 2            + 256 * 0x41,/*0x0633*/
+  1 + 2            + 256 * 0x45,/*0x0634*/
+  1 + 2            + 256 * 0x49,/*0x0635*/
+  1 + 2            + 256 * 0x4D,/*0x0636*/
+  1 + 2            + 256 * 0x51,/*0x0637*/
+  1 + 2            + 256 * 0x55,/*0x0638*/
+  1 + 2            + 256 * 0x59,/*0x0639*/
+  1 + 2            + 256 * 0x5D,/*0x063A*/
+  0, 0, 0, 0, 0,                /*0x063B-0x063F*/
+  1 + 2,                        /*0x0640*/
+  1 + 2            + 256 * 0x61,/*0x0641*/
+  1 + 2            + 256 * 0x65,/*0x0642*/
+  1 + 2            + 256 * 0x69,/*0x0643*/
+  1 + 2       + 16 + 256 * 0x6D,/*0x0644*/
+  1 + 2            + 256 * 0x71,/*0x0645*/
+  1 + 2            + 256 * 0x75,/*0x0646*/
+  1 + 2            + 256 * 0x79,/*0x0647*/
+  1                + 256 * 0x7D,/*0x0648*/
+  1                + 256 * 0x7F,/*0x0649*/
+  1 + 2            + 256 * 0x81,/*0x064A*/
+         4         + 256 * 1,   /*0x064B*/
+         4 + 128   + 256 * 1,   /*0x064C*/
+         4 + 128   + 256 * 1,   /*0x064D*/
+         4 + 128   + 256 * 1,   /*0x064E*/
+         4 + 128   + 256 * 1,   /*0x064F*/
+         4 + 128   + 256 * 1,   /*0x0650*/
+         4 + 64    + 256 * 3,   /*0x0651*/
+         4         + 256 * 1,   /*0x0652*/
+         4         + 256 * 7,   /*0x0653*/
+         4         + 256 * 8,   /*0x0654*/
+         4         + 256 * 8,   /*0x0655*/
+         4         + 256 * 1,   /*0x0656*/
+  0, 0, 0, 0, 0,                /*0x0657-0x065B*/
+  1                + 256 * 0x85,/*0x065C*/
+  1                + 256 * 0x87,/*0x065D*/
+  1                + 256 * 0x89,/*0x065E*/
+  1                + 256 * 0x8B,/*0x065F*/
+  0, 0, 0, 0, 0,                /*0x0660-0x0664*/
+  0, 0, 0, 0, 0,                /*0x0665-0x0669*/
+  0, 0, 0, 0, 0, 0,             /*0x066A-0x066F*/
+         4         + 256 * 6,   /*0x0670*/
+  1        + 8     + 256 * 0x00,/*0x0671*/
+  1            + 32,            /*0x0672*/
+  1            + 32,            /*0x0673*/
+  0,                            /*0x0674*/
+  1            + 32,            /*0x0675*/
+  1, 1,                         /*0x0676-0x0677*/
+  1 + 2,                        /*0x0678*/
+  1 + 2 + 8        + 256 * 0x16,/*0x0679*/
+  1 + 2 + 8        + 256 * 0x0E,/*0x067A*/
+  1 + 2 + 8        + 256 * 0x02,/*0x067B*/
+  1+2, 1+2,                     /*0x67C-0x067D*/
+  1+2+8+256 * 0x06, 1+2, 1+2, 1+2, 1+2, 1+2, /*0x067E-0x0683*/
+  1+2, 1+2, 1+2+8+256 * 0x2A, 1+2,           /*0x0684-0x0687*/
+  1     + 8        + 256 * 0x38,/*0x0688*/
+  1, 1, 1,                      /*0x0689-0x068B*/
+  1     + 8        + 256 * 0x34,/*0x068C*/
+  1     + 8        + 256 * 0x32,/*0x068D*/
+  1     + 8        + 256 * 0x36,/*0x068E*/
+  1, 1,                         /*0x068F-0x0690*/
+  1     + 8        + 256 * 0x3C,/*0x0691*/
+  1, 1, 1, 1, 1, 1, 1+8+256 * 0x3A, 1,       /*0x0692-0x0699*/
+  1+2, 1+2, 1+2, 1+2, 1+2, 1+2, /*0x069A-0x06A3*/
+  1+2, 1+2, 1+2, 1+2,           /*0x069A-0x06A3*/
+  1+2, 1+2, 1+2, 1+2, 1+2, 1+2+8+256 * 0x3E, /*0x06A4-0x06AD*/
+  1+2, 1+2, 1+2, 1+2,           /*0x06A4-0x06AD*/
+  1+2, 1+2+8+256 * 0x42, 1+2, 1+2, 1+2, 1+2, /*0x06AE-0x06B7*/
+  1+2, 1+2, 1+2, 1+2,           /*0x06AE-0x06B7*/
+  1+2, 1+2,                     /*0x06B8-0x06B9*/
+  1     + 8        + 256 * 0x4E,/*0x06BA*/
+  1 + 2 + 8        + 256 * 0x50,/*0x06BB*/
+  1+2, 1+2,                     /*0x06BC-0x06BD*/
+  1 + 2 + 8        + 256 * 0x5A,/*0x06BE*/
+  1+2,                          /*0x06BF*/
+  1     + 8        + 256 * 0x54,/*0x06C0*/
+  1 + 2 + 8        + 256 * 0x56,/*0x06C1*/
+  1, 1, 1,                      /*0x06C2-0x06C4*/
+  1     + 8        + 256 * 0x90,/*0x06C5*/
+  1     + 8        + 256 * 0x89,/*0x06C6*/
+  1     + 8        + 256 * 0x87,/*0x06C7*/
+  1     + 8        + 256 * 0x8B,/*0x06C8*/
+  1     + 8        + 256 * 0x92,/*0x06C9*/
+  1,                            /*0x06CA*/
+  1     + 8        + 256 * 0x8E,/*0x06CB*/
+  1 + 2 + 8        + 256 * 0xAC,/*0x06CC*/
+  1,                            /*0x06CD*/
+  1+2, 1+2,                     /*0x06CE-0x06CF*/
+  1 + 2 + 8        + 256 * 0x94,/*0x06D0*/
+  1+2,                          /*0x06D1*/
+  1     + 8        + 256 * 0x5E,/*0x06D2*/
+  1     + 8        + 256 * 0x60 /*0x06D3*/
+};
+
+static const uint8_t presALink[] = {
+/***********0*****1*****2*****3*****4*****5*****6*****7*****8*****9*****A*****B*****C*****D*****E*****F*/
+/*FB5*/    0,    1,    0,    0,    0,    0,    0,    1,    2,1 + 2,    0,    0,    0,    0,    0,    0,
+/*FB6*/    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,
+/*FB7*/    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    1,    2,1 + 2,    0,    0,
+/*FB8*/    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    1,    0,    0,    0,    1,
+/*FB9*/    2,1 + 2,    0,    1,    2,1 + 2,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,
+/*FBA*/    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,
+/*FBB*/    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,
+/*FBC*/    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,
+/*FBD*/    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,
+/*FBE*/    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,
+/*FBF*/    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    1,    2,1 + 2,
+/*FC0*/    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,
+/*FC1*/    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,
+/*FC2*/    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,
+/*FC3*/    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,
+/*FC4*/    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,
+/*FC5*/    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    4,    4,
+/*FC6*/    4,    4,    4
+};
+
+static const uint8_t presBLink[]=
+{
+/***********0*****1*****2*****3*****4*****5*****6*****7*****8*****9*****A*****B*****C*****D*****E*****F*/
+/*FE7*/1 + 2,1 + 2,1 + 2,    0,1 + 2,    0,1 + 2,1 + 2,1 + 2,1 + 2,1 + 2,1 + 2,1 + 2,1 + 2,1 + 2,1 + 2,
+/*FE8*/    0,    0,    1,    0,    1,    0,    1,    0,    1,    0,    1,    2,1 + 2,    0,    1,    0,
+/*FE9*/    1,    2,1 + 2,    0,    1,    0,    1,    2,1 + 2,    0,    1,    2,1 + 2,    0,    1,    2,
+/*FEA*/1 + 2,    0,    1,    2,1 + 2,    0,    1,    2,1 + 2,    0,    1,    0,    1,    0,    1,    0,
+/*FEB*/    1,    0,    1,    2,1 + 2,    0,    1,    2,1 + 2,    0,    1,    2,1 + 2,    0,    1,    2,
+/*FEC*/1 + 2,    0,    1,    2,1 + 2,    0,    1,    2,1 + 2,    0,    1,    2,1 + 2,    0,    1,    2,
+/*FED*/1 + 2,    0,    1,    2,1 + 2,    0,    1,    2,1 + 2,    0,    1,    2,1 + 2,    0,    1,    2,
+/*FEE*/1 + 2,    0,    1,    2,1 + 2,    0,    1,    2,1 + 2,    0,    1,    2,1 + 2,    0,    1,    0,
+/*FEF*/    1,    0,    1,    2,1 + 2,    0,    1,    0,    1,    0,    1,    0,    1,    0,    0,    0
+};
+
+static const UChar convertFBto06[] =
+{
+/***********0******1******2******3******4******5******6******7******8******9******A******B******C******D******E******F***/
+/*FB5*/   0x671, 0x671, 0x67B, 0x67B, 0x67B, 0x67B, 0x67E, 0x67E, 0x67E, 0x67E,     0,     0,     0,     0, 0x67A, 0x67A,
+/*FB6*/   0x67A, 0x67A,     0,     0,     0,     0, 0x679, 0x679, 0x679, 0x679,     0,     0,     0,     0,     0,     0,
+/*FB7*/       0,     0,     0,     0,     0,     0,     0,     0,     0,     0, 0x686, 0x686, 0x686, 0x686,     0,     0,
+/*FB8*/       0,     0, 0x68D, 0x68D, 0x68C, 0x68C, 0x68E, 0x68E, 0x688, 0x688, 0x698, 0x698, 0x691, 0x691, 0x6A9, 0x6A9,
+/*FB9*/   0x6A9, 0x6A9, 0x6AF, 0x6AF, 0x6AF, 0x6AF,     0,     0,     0,     0,     0,     0,     0,     0, 0x6BA, 0x6BA,
+/*FBA*/   0x6BB, 0x6BB, 0x6BB, 0x6BB, 0x6C0, 0x6C0, 0x6C1, 0x6C1, 0x6C1, 0x6C1, 0x6BE, 0x6BE, 0x6BE, 0x6BE, 0x6d2, 0x6D2,
+/*FBB*/   0x6D3, 0x6D3,     0,     0,     0,     0,     0,     0,     0,     0,     0,     0,     0,     0,     0,     0,
+/*FBC*/       0,     0,     0,     0,     0,     0,     0,     0,     0,     0,     0,     0,     0,     0,     0,     0,
+/*FBD*/       0,     0,     0,     0,     0,     0,     0, 0x6C7, 0x6C7, 0x6C6, 0x6C6, 0x6C8, 0x6C8,     0, 0x6CB, 0x6CB,
+/*FBE*/   0x6C5, 0x6C5, 0x6C9, 0x6C9, 0x6D0, 0x6D0, 0x6D0, 0x6D0,     0,     0,     0,     0,     0,     0,     0,     0,
+/*FBF*/       0,     0,     0,     0,     0,     0,     0,     0,     0,     0,     0,     0, 0x6CC, 0x6CC, 0x6CC, 0x6CC
+};
+
+static const UChar convertFEto06[] =
+{
+/***********0******1******2******3******4******5******6******7******8******9******A******B******C******D******E******F***/
+/*FE7*/   0x64B, 0x64B, 0x64C, 0x64C, 0x64D, 0x64D, 0x64E, 0x64E, 0x64F, 0x64F, 0x650, 0x650, 0x651, 0x651, 0x652, 0x652,
+/*FE8*/   0x621, 0x622, 0x622, 0x623, 0x623, 0x624, 0x624, 0x625, 0x625, 0x626, 0x626, 0x626, 0x626, 0x627, 0x627, 0x628,
+/*FE9*/   0x628, 0x628, 0x628, 0x629, 0x629, 0x62A, 0x62A, 0x62A, 0x62A, 0x62B, 0x62B, 0x62B, 0x62B, 0x62C, 0x62C, 0x62C,
+/*FEA*/   0x62C, 0x62D, 0x62D, 0x62D, 0x62D, 0x62E, 0x62E, 0x62E, 0x62E, 0x62F, 0x62F, 0x630, 0x630, 0x631, 0x631, 0x632,
+/*FEB*/   0x632, 0x633, 0x633, 0x633, 0x633, 0x634, 0x634, 0x634, 0x634, 0x635, 0x635, 0x635, 0x635, 0x636, 0x636, 0x636,
+/*FEC*/   0x636, 0x637, 0x637, 0x637, 0x637, 0x638, 0x638, 0x638, 0x638, 0x639, 0x639, 0x639, 0x639, 0x63A, 0x63A, 0x63A,
+/*FED*/   0x63A, 0x641, 0x641, 0x641, 0x641, 0x642, 0x642, 0x642, 0x642, 0x643, 0x643, 0x643, 0x643, 0x644, 0x644, 0x644,
+/*FEE*/   0x644, 0x645, 0x645, 0x645, 0x645, 0x646, 0x646, 0x646, 0x646, 0x647, 0x647, 0x647, 0x647, 0x648, 0x648, 0x649,
+/*FEF*/   0x649, 0x64A, 0x64A, 0x64A, 0x64A, 0x65C, 0x65C, 0x65D, 0x65D, 0x65E, 0x65E, 0x65F, 0x65F
+};
+
+static const uint8_t shapeTable[4][4][4]=
+{
+  { {0,0,0,0}, {0,0,0,0}, {0,1,0,3}, {0,1,0,1} },
+  { {0,0,2,2}, {0,0,1,2}, {0,1,1,2}, {0,1,1,3} },
+  { {0,0,0,0}, {0,0,0,0}, {0,1,0,3}, {0,1,0,3} },
+  { {0,0,1,2}, {0,0,1,2}, {0,1,1,2}, {0,1,1,3} }
+};
+
+/*
+ * This function shapes European digits to Arabic-Indic digits
+ * in-place, writing over the input characters.
+ * Since we know that we are only looking for BMP code points,
+ * we can safely just work with code units (again, at least UTF-16).
+ */
+static void
+_shapeToArabicDigitsWithContext(UChar *s, int32_t length,
+                                UChar digitBase,
+                                UBool isLogical, UBool lastStrongWasAL) {
+    int32_t i;
+    UChar c;
+
+    digitBase-=0x30;
+
+    /* the iteration direction depends on the type of input */
+    if(isLogical) {
+        for(i=0; i<length; ++i) {
+            c=s[i];
+            switch(ubidi_getClass(c)) {
+            case U_LEFT_TO_RIGHT: /* L */
+            case U_RIGHT_TO_LEFT: /* R */
+                lastStrongWasAL=FALSE;
+                break;
+            case U_RIGHT_TO_LEFT_ARABIC: /* AL */
+                lastStrongWasAL=TRUE;
+                break;
+            case U_EUROPEAN_NUMBER: /* EN */
+                if(lastStrongWasAL && (uint32_t)(c-0x30)<10) {
+                    s[i]=(UChar)(digitBase+c); /* digitBase+(c-0x30) - digitBase was modified above */
+                }
+                break;
+            default :
+                break;
+            }
+        }
+    } else {
+        for(i=length; i>0; /* pre-decrement in the body */) {
+            c=s[--i];
+            switch(ubidi_getClass(c)) {
+            case U_LEFT_TO_RIGHT: /* L */
+            case U_RIGHT_TO_LEFT: /* R */
+                lastStrongWasAL=FALSE;
+                break;
+            case U_RIGHT_TO_LEFT_ARABIC: /* AL */
+                lastStrongWasAL=TRUE;
+                break;
+            case U_EUROPEAN_NUMBER: /* EN */
+                if(lastStrongWasAL && (uint32_t)(c-0x30)<10) {
+                    s[i]=(UChar)(digitBase+c); /* digitBase+(c-0x30) - digitBase was modified above */
+                }
+                break;
+            default :
+                break;
+            }
+        }
+    }
+}
+
+/*
+ *Name     : invertBuffer
+ *Function : This function inverts the buffer, it's used
+ *           in case the user specifies the buffer to be
+ *           U_SHAPE_TEXT_DIRECTION_LOGICAL
+ */
+static void
+invertBuffer(UChar *buffer, int32_t size, uint32_t /*options*/, int32_t lowlimit, int32_t highlimit) {
+    UChar temp;
+    int32_t i=0,j=0;
+    for(i=lowlimit,j=size-highlimit-1;i<j;i++,j--) {
+        temp = buffer[i];
+        buffer[i] = buffer[j];
+        buffer[j] = temp;
+    }
+}
+
+/*
+ *Name     : changeLamAlef
+ *Function : Converts the Alef characters into an equivalent
+ *           LamAlef location in the 0x06xx Range, this is an
+ *           intermediate stage in the operation of the program
+ *           later it'll be converted into the 0xFExx LamAlefs
+ *           in the shaping function.
+ */
+static inline UChar
+changeLamAlef(UChar ch) {
+    switch(ch) {
+    case 0x0622 :
+        return 0x065C;
+    case 0x0623 :
+        return 0x065D;
+    case 0x0625 :
+        return 0x065E;
+    case 0x0627 :
+        return 0x065F;
+    }
+    return 0;
+}
+
+/*
+ *Name     : getLink
+ *Function : Resolves the link between the characters as
+ *           Arabic characters have four forms :
+ *           Isolated, Initial, Middle and Final Form
+ */
+static UChar
+getLink(UChar ch) {
+    if(ch >= 0x0622 && ch <= 0x06D3) {
+        return(araLink[ch-0x0622]);
+    } else if(ch == 0x200D) {
+        return(3);
+    } else if(ch >= 0x206D && ch <= 0x206F) {
+        return(4);
+    }else if(ch >= 0xFB50 && ch <= 0xFC62) {
+        return(presALink[ch-0xFB50]);
+    } else if(ch >= 0xFE70 && ch <= 0xFEFC) {
+        return(presBLink[ch-0xFE70]);
+    }else {
+        return(0);
+    }
+}
+
+/*
+ *Name     : countSpaces
+ *Function : Counts the number of spaces
+ *           at each end of the logical buffer
+ */
+static void
+countSpaces(UChar *dest, int32_t size, uint32_t /*options*/, int32_t *spacesCountl, int32_t *spacesCountr) {
+    int32_t i = 0;
+    int32_t countl = 0,countr = 0;
+    while((dest[i] == SPACE_CHAR) && (countl < size)) {
+       countl++;
+       i++;
+    }
+    if (countl < size) {  /* the entire buffer is not all space */
+        while(dest[size-1] == SPACE_CHAR) {
+            countr++;
+            size--;
+        }
+    }
+    *spacesCountl = countl;
+    *spacesCountr = countr;
+}
+
+/*
+ *Name     : isTashkeelChar
+ *Function : Returns 1 for Tashkeel characters in 06 range else return 0
+ */
+static inline int32_t
+isTashkeelChar(UChar ch) {
+    return (int32_t)( ch>=0x064B && ch<= 0x0652 );
+}
+
+/*
+ *Name     : isTashkeelCharFE
+ *Function : Returns 1 for Tashkeel characters in FE range else return 0
+ */
+static inline int32_t
+isTashkeelCharFE(UChar ch) {
+    return (int32_t)( ch>=0xFE70 && ch<= 0xFE7F );
+}
+
+/*
+ *Name     : isAlefChar
+ *Function : Returns 1 for Alef characters else return 0
+ */
+static inline int32_t
+isAlefChar(UChar ch) {
+    return (int32_t)( (ch==0x0622)||(ch==0x0623)||(ch==0x0625)||(ch==0x0627) );
+}
+
+/*
+ *Name     : isLamAlefChar
+ *Function : Returns 1 for LamAlef characters else return 0
+ */
+static inline int32_t
+isLamAlefChar(UChar ch) {
+    return (int32_t)((ch>=0xFEF5)&&(ch<=0xFEFC) );
+}
+
+/*BIDI
+ *Name     : isTailChar
+ *Function : returns 1 if the character matches one of the tail characters (0xfe73 or 0x200b) otherwise returns 0
+ */
+
+static inline int32_t
+isTailChar(UChar ch) {
+    if(ch == OLD_TAIL_CHAR || ch == NEW_TAIL_CHAR){
+            return 1;
+    }else{
+            return 0;
+    }
+}
+
+/*BIDI
+ *Name     : isSeenTailFamilyChar
+ *Function : returns 1 if the character is a seen family isolated character
+ *           in the FE range otherwise returns 0
+ */
+
+static inline int32_t
+isSeenTailFamilyChar(UChar ch) {
+    if(ch >= 0xfeb1 && ch < 0xfebf){
+            return tailFamilyIsolatedFinal [ch - 0xFEB1];
+    }else{
+            return 0;
+    }
+}
+
+ /* Name     : isSeenFamilyChar
+  * Function : returns 1 if the character is a seen family character in the Unicode
+  *            06 range otherwise returns 0
+ */
+
+static inline int32_t
+isSeenFamilyChar(UChar  ch){
+    if(ch >= 0x633 && ch <= 0x636){
+        return 1;
+    }else {
+        return 0;
+    }
+}
+
+/*Start of BIDI*/
+/*
+ *Name     : isAlefMaksouraChar
+ *Function : returns 1 if the character is a Alef Maksoura Final or isolated
+ *           otherwise returns 0
+ */
+static inline int32_t
+isAlefMaksouraChar(UChar ch) {
+    return (int32_t)( (ch == 0xFEEF) || ( ch == 0xFEF0) || (ch == 0x0649));
+}
+
+/*
+ * Name     : isYehHamzaChar
+ * Function : returns 1 if the character is a yehHamza isolated or yehhamza
+ *            final is found otherwise returns 0
+ */
+static inline int32_t
+isYehHamzaChar(UChar ch) {
+    if((ch==0xFE89)||(ch==0xFE8A)){
+        return 1;
+    }else{
+        return 0;
+    }
+}
+
+ /*
+ * Name: isTashkeelOnTatweelChar
+ * Function: Checks if the Tashkeel Character is on Tatweel or not,if the
+ *           Tashkeel on tatweel (FE range), it returns 1 else if the
+ *           Tashkeel with shadda on tatweel (FC range)return 2 otherwise
+ *           returns 0
+ */
+static inline int32_t
+isTashkeelOnTatweelChar(UChar ch){
+    if(ch >= 0xfe70 && ch <= 0xfe7f && ch != NEW_TAIL_CHAR && ch != 0xFE75 && ch != SHADDA_TATWEEL_CHAR)
+    {
+        return tashkeelMedial [ch - 0xFE70];
+    }else if( (ch >= 0xfcf2 && ch <= 0xfcf4) || (ch == SHADDA_TATWEEL_CHAR)) {
+        return 2;
+    }else{
+        return 0;
+    }
+}
+
+/*
+ * Name: isIsolatedTashkeelChar
+ * Function: Checks if the Tashkeel Character is in the isolated form
+ *           (i.e. Unicode FE range) returns 1 else if the Tashkeel
+ *           with shadda is in the isolated form (i.e. Unicode FC range)
+ *           returns 2 otherwise returns 0
+ */
+static inline int32_t
+isIsolatedTashkeelChar(UChar ch){
+    if(ch >= 0xfe70 && ch <= 0xfe7f && ch != NEW_TAIL_CHAR && ch != 0xFE75){
+        return (1 - tashkeelMedial [ch - 0xFE70]);
+    }else if(ch >= 0xfc5e && ch <= 0xfc63){
+        return 1;
+    }else{
+        return 0;
+    }
+}
+
+
+
+
+/*
+ *Name     : calculateSize
+ *Function : This function calculates the destSize to be used in preflighting
+ *           when the destSize is equal to 0
+ *           It is used also to calculate the new destsize in case the
+ *           destination buffer will be resized.
+ */
+
+static int32_t
+calculateSize(const UChar *source, int32_t sourceLength,
+int32_t destSize,uint32_t options) {
+    int32_t i = 0;
+
+    int lamAlefOption = 0;
+    int tashkeelOption = 0;
+
+    destSize = sourceLength;
+
+    if (((options&U_SHAPE_LETTERS_MASK) == U_SHAPE_LETTERS_SHAPE ||
+        ((options&U_SHAPE_LETTERS_MASK) == U_SHAPE_LETTERS_SHAPE_TASHKEEL_ISOLATED )) &&
+        ((options&U_SHAPE_LAMALEF_MASK) == U_SHAPE_LAMALEF_RESIZE )){
+            lamAlefOption = 1;
+    }
+    if((options&U_SHAPE_LETTERS_MASK) == U_SHAPE_LETTERS_SHAPE &&
+       ((options&U_SHAPE_TASHKEEL_MASK) == U_SHAPE_TASHKEEL_RESIZE ) ){
+            tashkeelOption = 1;
+        }
+
+    if(lamAlefOption || tashkeelOption){
+        if((options&U_SHAPE_TEXT_DIRECTION_MASK)==U_SHAPE_TEXT_DIRECTION_VISUAL_LTR) {
+            for(i=0;i<sourceLength;i++) {
+                if( ((isAlefChar(source[i]))&& (i<(sourceLength-1)) &&(source[i+1] == LAM_CHAR)) || (isTashkeelCharFE(source[i])) ) {
+                        destSize--;
+                    }
+                }
+            }else if((options&U_SHAPE_TEXT_DIRECTION_MASK)==U_SHAPE_TEXT_DIRECTION_LOGICAL) {
+                for(i=0;i<sourceLength;i++) {
+                    if( ( (source[i] == LAM_CHAR) && (i<(sourceLength-1)) && (isAlefChar(source[i+1]))) || (isTashkeelCharFE(source[i])) ) {
+                        destSize--;
+                    }
+                }
+            }
+        }
+
+    if ((options&U_SHAPE_LETTERS_MASK) == U_SHAPE_LETTERS_UNSHAPE){
+        if ( (options&U_SHAPE_LAMALEF_MASK) == U_SHAPE_LAMALEF_RESIZE){
+            for(i=0;i<sourceLength;i++) {
+                if(isLamAlefChar(source[i]))
+                destSize++;
+            }
+        }
+    }
+
+    return destSize;
+}
+
+/*
+ *Name     : handleTashkeelWithTatweel
+ *Function : Replaces Tashkeel as following:
+ *            Case 1 :if the Tashkeel on tatweel, replace it with Tatweel.
+ *            Case 2 :if the Tashkeel aggregated with Shadda on Tatweel, replace
+ *                   it with Shadda on Tatweel.
+ *            Case 3: if the Tashkeel is isolated replace it with Space.
+ *
+ */
+static int32_t
+handleTashkeelWithTatweel(UChar *dest, int32_t sourceLength,
+             int32_t /*destSize*/, uint32_t /*options*/,
+             UErrorCode * /*pErrorCode*/) {
+                 int i;
+                 for(i = 0; i < sourceLength; i++){
+                     if((isTashkeelOnTatweelChar(dest[i]) == 1)){
+                         dest[i] = TATWEEL_CHAR;
+                    }else if((isTashkeelOnTatweelChar(dest[i]) == 2)){
+                         dest[i] = SHADDA_TATWEEL_CHAR;
+                    }else if(isIsolatedTashkeelChar(dest[i]) && dest[i] != SHADDA_CHAR){
+                         dest[i] = SPACE_CHAR;
+                    }
+                 }
+                 return sourceLength;
+}
+
+
+
+/*
+ *Name     : handleGeneratedSpaces
+ *Function : The shapeUnicode function converts Lam + Alef into LamAlef + space,
+ *           and Tashkeel to space.
+ *           handleGeneratedSpaces function puts these generated spaces
+ *           according to the options the user specifies. LamAlef and Tashkeel
+ *           spaces can be replaced at begin, at end, at near or decrease the
+ *           buffer size.
+ *
+ *           There is also Auto option for LamAlef and tashkeel, which will put
+ *           the spaces at end of the buffer (or end of text if the user used
+ *           the option U_SHAPE_SPACES_RELATIVE_TO_TEXT_BEGIN_END).
+ *
+ *           If the text type was visual_LTR and the option
+ *           U_SHAPE_SPACES_RELATIVE_TO_TEXT_BEGIN_END was selected the END
+ *           option will place the space at the beginning of the buffer and
+ *           BEGIN will place the space at the end of the buffer.
+ */
+
+static int32_t
+handleGeneratedSpaces(UChar *dest, int32_t sourceLength,
+                    int32_t destSize,
+                    uint32_t options,
+                    UErrorCode *pErrorCode,struct uShapeVariables shapeVars ) {
+
+    int32_t i = 0, j = 0;
+    int32_t count = 0;
+    UChar *tempbuffer=NULL;
+
+    int lamAlefOption = 0;
+    int tashkeelOption = 0;
+    int shapingMode = SHAPE_MODE;
+
+    if (shapingMode == 0){
+        if ( (options&U_SHAPE_LAMALEF_MASK) == U_SHAPE_LAMALEF_RESIZE ){
+            lamAlefOption = 1;
+        }
+        if ( (options&U_SHAPE_TASHKEEL_MASK) == U_SHAPE_TASHKEEL_RESIZE ){
+            tashkeelOption = 1;
+        }
+    }
+
+    tempbuffer = (UChar *)uprv_malloc((sourceLength+1)*U_SIZEOF_UCHAR);
+    /* Test for NULL */
+    if(tempbuffer == NULL) {
+        *pErrorCode = U_MEMORY_ALLOCATION_ERROR;
+        return 0;
+    }
+
+
+    if (lamAlefOption || tashkeelOption){
+        uprv_memset(tempbuffer, 0, (sourceLength+1)*U_SIZEOF_UCHAR);
+
+        i = j = 0; count = 0;
+        while(i < sourceLength) {
+            if ( (lamAlefOption && dest[i] == LAMALEF_SPACE_SUB) ||
+               (tashkeelOption && dest[i] == TASHKEEL_SPACE_SUB) ){
+                j--;
+                count++;
+            } else {
+                tempbuffer[j] = dest[i];
+            }
+            i++;
+            j++;
+        }
+
+        while(count >= 0) {
+            tempbuffer[i] = 0x0000;
+            i--;
+            count--;
+        }
+
+        u_memcpy(dest, tempbuffer, sourceLength);
+        destSize = u_strlen(dest);
+    }
+
+      lamAlefOption = 0;
+
+    if (shapingMode == 0){
+        if ( (options&U_SHAPE_LAMALEF_MASK) == U_SHAPE_LAMALEF_NEAR ){
+            lamAlefOption = 1;
+        }
+    }
+
+    if (lamAlefOption){
+        /* Lam+Alef is already shaped into LamAlef + FFFF */
+        i = 0;
+        while(i < sourceLength) {
+            if(lamAlefOption&&dest[i] == LAMALEF_SPACE_SUB){
+                dest[i] = SPACE_CHAR;
+            }
+            i++;
+        }
+        destSize = sourceLength;
+    }
+    lamAlefOption = 0;
+    tashkeelOption = 0;
+
+    if (shapingMode == 0) {
+        if ( ((options&U_SHAPE_LAMALEF_MASK) == shapeVars.uShapeLamalefBegin) ||
+              (((options&U_SHAPE_LAMALEF_MASK) == U_SHAPE_LAMALEF_AUTO )
+              && (shapeVars.spacesRelativeToTextBeginEnd==1)) ) {
+            lamAlefOption = 1;
+        }
+        if ( (options&U_SHAPE_TASHKEEL_MASK) == shapeVars.uShapeTashkeelBegin ) {
+            tashkeelOption = 1;
+        }
+    }
+
+    if(lamAlefOption || tashkeelOption){
+        uprv_memset(tempbuffer, 0, (sourceLength+1)*U_SIZEOF_UCHAR);
+        
+        i = j = sourceLength; count = 0;
+        
+        while(i >= 0) {
+            if ( (lamAlefOption && dest[i] == LAMALEF_SPACE_SUB) ||
+                 (tashkeelOption && dest[i] == TASHKEEL_SPACE_SUB) ){
+                j++;
+                count++;
+            }else {
+                tempbuffer[j] = dest[i];
+            }
+            i--;
+            j--;
+        }
+
+        for(i=0 ;i < count; i++){
+                tempbuffer[i] = SPACE_CHAR;
+        }
+
+        u_memcpy(dest, tempbuffer, sourceLength);
+        destSize = sourceLength;
+    }
+
+
+
+    lamAlefOption = 0;
+    tashkeelOption = 0;
+
+    if (shapingMode == 0) {
+        if ( ((options&U_SHAPE_LAMALEF_MASK) == shapeVars.uShapeLamalefEnd) ||
+              (((options&U_SHAPE_LAMALEF_MASK) == U_SHAPE_LAMALEF_AUTO )
+              && (shapeVars.spacesRelativeToTextBeginEnd==0)) ) {
+            lamAlefOption = 1;
+        }
+        if ( (options&U_SHAPE_TASHKEEL_MASK) == shapeVars.uShapeTashkeelEnd ){
+            tashkeelOption = 1;
+        }
+    }
+
+    if(lamAlefOption || tashkeelOption){
+        uprv_memset(tempbuffer, 0, (sourceLength+1)*U_SIZEOF_UCHAR);
+
+        i = j = 0; count = 0;
+        while(i < sourceLength) {
+            if ( (lamAlefOption && dest[i] == LAMALEF_SPACE_SUB) ||
+                 (tashkeelOption && dest[i] == TASHKEEL_SPACE_SUB) ){
+                j--;
+                count++;
+            }else {
+                tempbuffer[j] = dest[i];
+            }
+            i++;
+            j++;
+        }
+
+        while(count >= 0) {
+            tempbuffer[i] = SPACE_CHAR;
+            i--;
+            count--;
+        }
+
+        u_memcpy(dest, tempbuffer, sourceLength);
+        destSize = sourceLength;
+    }
+
+
+    if(tempbuffer){
+        uprv_free(tempbuffer);
+    }
+
+    return destSize;
+}
+
+/*
+ *Name     :expandCompositCharAtBegin
+ *Function :Expands the LamAlef character to Lam and Alef consuming the required
+ *         space from beginning of the buffer. If the text type was visual_LTR
+ *         and the option U_SHAPE_SPACES_RELATIVE_TO_TEXT_BEGIN_END was selected
+ *         the spaces will be located at end of buffer.
+ *         If there are no spaces to expand the LamAlef, an error
+ *         will be set to U_NO_SPACE_AVAILABLE as defined in utypes.h
+ */
+
+static int32_t
+expandCompositCharAtBegin(UChar *dest, int32_t sourceLength, int32_t destSize,UErrorCode *pErrorCode) {
+    int32_t      i = 0,j = 0;
+    int32_t      countl = 0;
+    UChar    *tempbuffer=NULL;
+
+    tempbuffer = (UChar *)uprv_malloc((sourceLength+1)*U_SIZEOF_UCHAR);
+
+    /* Test for NULL */
+    if(tempbuffer == NULL) {
+        *pErrorCode = U_MEMORY_ALLOCATION_ERROR;
+        return 0;
+    }
+
+        uprv_memset(tempbuffer, 0, (sourceLength+1)*U_SIZEOF_UCHAR);
+
+        i = 0;
+        while(dest[i] == SPACE_CHAR) {
+            countl++;
+            i++;
+        }
+
+        i = j = sourceLength-1;
+
+        while(i >= 0 && j >= 0) {
+            if( countl>0 && isLamAlefChar(dest[i])) {
+                tempbuffer[j] = LAM_CHAR;
+                /* to ensure the array index is within the range */
+                U_ASSERT(dest[i] >= 0xFEF5u
+                    && dest[i]-0xFEF5u < UPRV_LENGTHOF(convertLamAlef));
+                tempbuffer[j-1] = convertLamAlef[ dest[i] - 0xFEF5 ];
+                j--;
+                countl--;
+            }else {
+                 if( countl == 0 && isLamAlefChar(dest[i]) ) {
+                     *pErrorCode=U_NO_SPACE_AVAILABLE;
+                     }
+                 tempbuffer[j] = dest[i];
+            }
+            i--;
+            j--;
+        }
+        u_memcpy(dest, tempbuffer, sourceLength);
+
+        uprv_free(tempbuffer);
+
+        destSize = sourceLength;
+        return destSize;
+}
+
+/*
+ *Name     : expandCompositCharAtEnd
+ *Function : Expands the LamAlef character to Lam and Alef consuming the
+ *           required space from end of the buffer. If the text type was
+ *           Visual LTR and the option U_SHAPE_SPACES_RELATIVE_TO_TEXT_BEGIN_END
+ *           was used, the spaces will be consumed from begin of buffer. If
+ *           there are no spaces to expand the LamAlef, an error
+ *           will be set to U_NO_SPACE_AVAILABLE as defined in utypes.h
+ */
+
+static int32_t
+expandCompositCharAtEnd(UChar *dest, int32_t sourceLength, int32_t destSize,UErrorCode *pErrorCode) {
+    int32_t      i = 0,j = 0;
+
+    int32_t      countr = 0;
+    int32_t  inpsize = sourceLength;
+
+    UChar    *tempbuffer=NULL;
+    tempbuffer = (UChar *)uprv_malloc((sourceLength+1)*U_SIZEOF_UCHAR);
+
+    /* Test for NULL */
+    if(tempbuffer == NULL) {
+        *pErrorCode = U_MEMORY_ALLOCATION_ERROR;
+         return 0;
+    }
+
+    uprv_memset(tempbuffer, 0, (sourceLength+1)*U_SIZEOF_UCHAR);
+
+    while(dest[inpsize-1] == SPACE_CHAR) {
+        countr++;
+        inpsize--;
+    }
+
+    i = sourceLength - countr - 1;
+    j = sourceLength - 1;
+
+    while(i >= 0 && j >= 0) {
+        if( countr>0 && isLamAlefChar(dest[i]) ) {
+            tempbuffer[j] = LAM_CHAR;
+            tempbuffer[j-1] = convertLamAlef[ dest[i] - 0xFEF5 ];
+            j--;
+            countr--;
+        }else {
+            if ((countr == 0) && isLamAlefChar(dest[i]) ) {
+                *pErrorCode=U_NO_SPACE_AVAILABLE;
+            }
+            tempbuffer[j] = dest[i];
+        }
+        i--;
+        j--;
+    }
+
+    if(countr > 0) {
+        u_memmove(tempbuffer, tempbuffer+countr, sourceLength);
+        if(u_strlen(tempbuffer) < sourceLength) {
+            for(i=sourceLength-1;i>=sourceLength-countr;i--) {
+                tempbuffer[i] = SPACE_CHAR;
+            }
+        }
+    }
+    u_memcpy(dest, tempbuffer, sourceLength);
+
+    uprv_free(tempbuffer);
+
+    destSize = sourceLength;
+    return destSize;
+}
+
+/*
+ *Name     : expandCompositCharAtNear
+ *Function : Expands the LamAlef character into Lam + Alef, YehHamza character
+ *           into Yeh + Hamza, SeenFamily character into SeenFamily character
+ *           + Tail, while consuming the space next to the character.
+ *           If there are no spaces next to the character, an error
+ *           will be set to U_NO_SPACE_AVAILABLE as defined in utypes.h
+ */
+
+static int32_t
+expandCompositCharAtNear(UChar *dest, int32_t sourceLength, int32_t destSize,UErrorCode *pErrorCode,
+                         int yehHamzaOption, int seenTailOption, int lamAlefOption, struct uShapeVariables shapeVars) {
+    int32_t      i = 0;
+
+
+    UChar    lamalefChar, yehhamzaChar;
+
+    for(i = 0 ;i<=sourceLength-1;i++) {
+            if (seenTailOption && isSeenTailFamilyChar(dest[i])) {
+                if ((i>0) && (dest[i-1] == SPACE_CHAR) ) {
+                    dest[i-1] = shapeVars.tailChar;
+                }else {
+                    *pErrorCode=U_NO_SPACE_AVAILABLE;
+                }
+            }else if(yehHamzaOption && (isYehHamzaChar(dest[i])) ) {
+                if ((i>0) && (dest[i-1] == SPACE_CHAR) ) {
+                    yehhamzaChar = dest[i];
+                    dest[i] = yehHamzaToYeh[yehhamzaChar - YEH_HAMZAFE_CHAR];
+                    dest[i-1] = HAMZAFE_CHAR;
+                }else {
+
+                    *pErrorCode=U_NO_SPACE_AVAILABLE;
+                }
+            }else if(lamAlefOption && isLamAlefChar(dest[i+1])) {
+                if(dest[i] == SPACE_CHAR){
+                    lamalefChar = dest[i+1];
+                    dest[i+1] = LAM_CHAR;
+                    dest[i] = convertLamAlef[ lamalefChar - 0xFEF5 ];
+                }else {
+                    *pErrorCode=U_NO_SPACE_AVAILABLE;
+                }
+            }
+       }
+       destSize = sourceLength;
+       return destSize;
+}
+ /*
+ * Name     : expandCompositChar
+ * Function : LamAlef, need special handling, since it expands from one
+ *            character into two characters while shaping or deshaping.
+ *            In order to expand it, near or far spaces according to the
+ *            options user specifies. Also buffer size can be increased.
+ *
+ *            For SeenFamily characters and YehHamza only the near option is
+ *            supported, while for LamAlef we can take spaces from begin, end,
+ *            near or even increase the buffer size.
+ *            There is also the Auto option for LamAlef only, which will first
+ *            search for a space at end, begin then near, respectively.
+ *            If there are no spaces to expand these characters, an error will be set to
+ *            U_NO_SPACE_AVAILABLE as defined in utypes.h
+ */
+
+static int32_t
+expandCompositChar(UChar *dest, int32_t sourceLength,
+              int32_t destSize,uint32_t options,
+              UErrorCode *pErrorCode, int shapingMode,struct uShapeVariables shapeVars) {
+
+    int32_t      i = 0,j = 0;
+
+    UChar    *tempbuffer=NULL;
+    int yehHamzaOption = 0;
+    int seenTailOption = 0;
+    int lamAlefOption = 0;
+
+    if (shapingMode == 1){
+        if ( (options&U_SHAPE_LAMALEF_MASK) == U_SHAPE_LAMALEF_AUTO){
+
+            if(shapeVars.spacesRelativeToTextBeginEnd == 0) {
+                destSize = expandCompositCharAtEnd(dest, sourceLength, destSize, pErrorCode);
+
+                if(*pErrorCode == U_NO_SPACE_AVAILABLE) {
+                    *pErrorCode = U_ZERO_ERROR;
+                    destSize = expandCompositCharAtBegin(dest, sourceLength, destSize, pErrorCode);
+                }
+            }else {
+                destSize = expandCompositCharAtBegin(dest, sourceLength, destSize, pErrorCode);
+
+                if(*pErrorCode == U_NO_SPACE_AVAILABLE) {
+                    *pErrorCode = U_ZERO_ERROR;
+                    destSize = expandCompositCharAtEnd(dest, sourceLength, destSize, pErrorCode);
+                }
+            }
+
+            if(*pErrorCode == U_NO_SPACE_AVAILABLE) {
+                *pErrorCode = U_ZERO_ERROR;
+                destSize = expandCompositCharAtNear(dest, sourceLength, destSize, pErrorCode, yehHamzaOption,
+                                                seenTailOption, 1,shapeVars);
+            }
+        }
+    }
+
+    if (shapingMode == 1){
+        if ( (options&U_SHAPE_LAMALEF_MASK) == shapeVars.uShapeLamalefEnd){
+            destSize = expandCompositCharAtEnd(dest, sourceLength, destSize, pErrorCode);
+        }
+    }
+
+    if (shapingMode == 1){
+        if ( (options&U_SHAPE_LAMALEF_MASK) == shapeVars.uShapeLamalefBegin){
+            destSize = expandCompositCharAtBegin(dest, sourceLength, destSize, pErrorCode);
+        }
+    }
+
+    if (shapingMode == 0){
+         if ((options&U_SHAPE_YEHHAMZA_MASK) == U_SHAPE_YEHHAMZA_TWOCELL_NEAR){
+             yehHamzaOption = 1;
+         }
+         if ((options&U_SHAPE_SEEN_MASK) == U_SHAPE_SEEN_TWOCELL_NEAR){
+            seenTailOption = 1;
+         }
+    }
+    if (shapingMode == 1) {
+        if ( (options&U_SHAPE_LAMALEF_MASK) == U_SHAPE_LAMALEF_NEAR) {
+            lamAlefOption = 1;
+        }
+    }
+
+
+    if (yehHamzaOption || seenTailOption || lamAlefOption){
+        destSize = expandCompositCharAtNear(dest, sourceLength, destSize, pErrorCode, yehHamzaOption,
+                                            seenTailOption,lamAlefOption,shapeVars);
+    }
+
+
+    if (shapingMode == 1){
+        if ( (options&U_SHAPE_LAMALEF_MASK) == U_SHAPE_LAMALEF_RESIZE){
+            destSize = calculateSize(dest,sourceLength,destSize,options);
+            tempbuffer = (UChar *)uprv_malloc((destSize+1)*U_SIZEOF_UCHAR);
+
+            /* Test for NULL */
+            if(tempbuffer == NULL) {
+                *pErrorCode = U_MEMORY_ALLOCATION_ERROR;
+                return 0;
+            }
+
+            uprv_memset(tempbuffer, 0, (destSize+1)*U_SIZEOF_UCHAR);
+
+            i = j = 0;
+            while(i < destSize && j < destSize) {
+                if(isLamAlefChar(dest[i]) ) {
+                    tempbuffer[j] = convertLamAlef[ dest[i] - 0xFEF5 ];
+                    tempbuffer[j+1] = LAM_CHAR;
+                    j++;
+                }else {
+                    tempbuffer[j] = dest[i];
+                }
+                i++;
+                j++;
+            }
+
+            u_memcpy(dest, tempbuffer, destSize);
+        }
+    }
+
+    if(tempbuffer) {
+        uprv_free(tempbuffer);
+    }
+    return destSize;
+}
+
+/*
+ *Name     : shapeUnicode
+ *Function : Converts an Arabic Unicode buffer in 06xx Range into a shaped
+ *           arabic Unicode buffer in FExx Range
+ */
+static int32_t
+shapeUnicode(UChar *dest, int32_t sourceLength,
+             int32_t destSize,uint32_t options,
+             UErrorCode *pErrorCode,
+             int tashkeelFlag, struct uShapeVariables shapeVars) {
+
+    int32_t          i, iend;
+    int32_t          step;
+    int32_t          lastPos,Nx, Nw;
+    unsigned int     Shape;
+    int32_t          lamalef_found = 0;
+    int32_t seenfamFound = 0, yehhamzaFound =0, tashkeelFound  = 0;
+    UChar            prevLink = 0, lastLink = 0, currLink, nextLink = 0;
+    UChar            wLamalef;
+
+    /*
+     * Converts the input buffer from FExx Range into 06xx Range
+     * to make sure that all characters are in the 06xx range
+     * even the lamalef is converted to the special region in
+     * the 06xx range
+     */
+    if ((options & U_SHAPE_PRESERVE_PRESENTATION_MASK)  == U_SHAPE_PRESERVE_PRESENTATION_NOOP) {
+        for (i = 0; i < sourceLength; i++) {
+            UChar inputChar  = dest[i];
+            if ( (inputChar >= 0xFB50) && (inputChar <= 0xFBFF)) {
+                UChar c = convertFBto06 [ (inputChar - 0xFB50) ];
+                if (c != 0)
+                    dest[i] = c;
+            } else if ( (inputChar >= 0xFE70) && (inputChar <= 0xFEFC)) {
+                dest[i] = convertFEto06 [ (inputChar - 0xFE70) ] ;
+            } else {
+                dest[i] = inputChar ;
+            }
+        }
+    }
+
+
+    /* sets the index to the end of the buffer, together with the step point to -1 */
+    i = sourceLength - 1;
+    iend = -1;
+    step = -1;
+
+    /*
+     * This function resolves the link between the characters .
+     * Arabic characters have four forms :
+     * Isolated Form, Initial Form, Middle Form and Final Form
+     */
+    currLink = getLink(dest[i]);
+
+    lastPos = i;
+    Nx = -2, Nw = 0;
+
+    while (i != iend) {
+        /* If high byte of currLink > 0 then more than one shape */
+        if ((currLink & 0xFF00) > 0 || (getLink(dest[i]) & IRRELEVANT) != 0) {
+            Nw = i + step;
+            while (Nx < 0) {         /* we need to know about next char */
+                if(Nw == iend) {
+                    nextLink = 0;
+                    Nx = 3000;
+                } else {
+                    nextLink = getLink(dest[Nw]);
+                    if((nextLink & IRRELEVANT) == 0) {
+                        Nx = Nw;
+                    } else {
+                        Nw = Nw + step;
+                    }
+                }
+            }
+
+            if ( ((currLink & ALEFTYPE) > 0)  &&  ((lastLink & LAMTYPE) > 0) ) {
+                lamalef_found = 1;
+                wLamalef = changeLamAlef(dest[i]); /*get from 0x065C-0x065f */
+                if ( wLamalef != 0) {
+                    dest[i] = LAMALEF_SPACE_SUB;            /* The default case is to drop the Alef and replace */
+                    dest[lastPos] =wLamalef;     /* it by LAMALEF_SPACE_SUB which is the last character in the  */
+                    i=lastPos;                   /* unicode private use area, this is done to make   */
+                }                                /* sure that removeLamAlefSpaces() handles only the */
+                lastLink = prevLink;             /* spaces generated during lamalef generation.      */
+                currLink = getLink(wLamalef);    /* LAMALEF_SPACE_SUB is added here and is replaced by spaces   */
+            }                                    /* in removeLamAlefSpaces()                         */
+
+            if ((i > 0) && (dest[i-1] == SPACE_CHAR)){
+                if ( isSeenFamilyChar(dest[i])) {
+                    seenfamFound = 1;
+                } else if (dest[i] == YEH_HAMZA_CHAR) {
+                    yehhamzaFound = 1;
+                }
+            }
+            else if(i==0){
+                if ( isSeenFamilyChar(dest[i])){
+                    seenfamFound = 1;
+                } else if (dest[i] == YEH_HAMZA_CHAR) {
+                    yehhamzaFound = 1;
+                }
+            }
+
+            /*
+             * get the proper shape according to link ability of neighbors
+             * and of character; depends on the order of the shapes
+             * (isolated, initial, middle, final) in the compatibility area
+             */
+            Shape = shapeTable[nextLink & (LINKR + LINKL)]
+                              [lastLink & (LINKR + LINKL)]
+                              [currLink & (LINKR + LINKL)];
+
+            if ((currLink & (LINKR+LINKL)) == 1) {
+                Shape &= 1;
+            } else if(isTashkeelChar(dest[i])) {
+                if( (lastLink & LINKL) && (nextLink & LINKR) && (tashkeelFlag == 1) &&
+                     dest[i] != 0x064C && dest[i] != 0x064D )
+                {
+                    Shape = 1;
+                    if( (nextLink&ALEFTYPE) == ALEFTYPE && (lastLink&LAMTYPE) == LAMTYPE ) {
+                        Shape = 0;
+                    }
+                } else if(tashkeelFlag == 2 && dest[i] == SHADDA06_CHAR){
+                    Shape = 1;
+                } else {
+                    Shape = 0;
+                }
+            }
+            if ((dest[i] ^ 0x0600) < 0x100) {
+                if ( isTashkeelChar(dest[i]) ){
+                    if (tashkeelFlag == 2  && dest[i] != SHADDA06_CHAR){
+                        dest[i] = TASHKEEL_SPACE_SUB;
+                        tashkeelFound  = 1;
+                    } else {
+                        /* to ensure the array index is within the range */
+                        U_ASSERT(dest[i] >= 0x064Bu
+                            && dest[i]-0x064Bu < UPRV_LENGTHOF(IrrelevantPos));
+                        dest[i] =  0xFE70 + IrrelevantPos[(dest[i] - 0x064B)] + Shape;
+                    }
+                }else if ((currLink & APRESENT) > 0) {
+                    dest[i] = (UChar)(0xFB50 + (currLink >> 8) + Shape);
+                }else if ((currLink >> 8) > 0 && (currLink & IRRELEVANT) == 0) {
+                    dest[i] = (UChar)(0xFE70 + (currLink >> 8) + Shape);
+                }
+            }
+        }
+
+        /* move one notch forward */
+        if ((currLink & IRRELEVANT) == 0) {
+            prevLink = lastLink;
+            lastLink = currLink;
+            lastPos = i;
+        }
+
+        i = i + step;
+        if (i == Nx) {
+            currLink = nextLink;
+            Nx = -2;
+        } else if(i != iend) {
+            currLink = getLink(dest[i]);
+        }
+    }
+    destSize = sourceLength;
+    if ( (lamalef_found != 0 ) || (tashkeelFound  != 0) ){
+        destSize = handleGeneratedSpaces(dest,sourceLength,destSize,options,pErrorCode, shapeVars);
+    }
+
+    if ( (seenfamFound != 0) || (yehhamzaFound != 0) ) {
+        destSize = expandCompositChar(dest, sourceLength,destSize,options,pErrorCode, SHAPE_MODE,shapeVars);
+    }
+    return destSize;
+}
+
+/*
+ *Name     : deShapeUnicode
+ *Function : Converts an Arabic Unicode buffer in FExx Range into unshaped
+ *           arabic Unicode buffer in 06xx Range
+ */
+static int32_t
+deShapeUnicode(UChar *dest, int32_t sourceLength,
+               int32_t destSize,uint32_t options,
+               UErrorCode *pErrorCode, struct uShapeVariables shapeVars) {
+    int32_t i = 0;
+    int32_t lamalef_found = 0;
+    int32_t yehHamzaComposeEnabled = 0;
+    int32_t seenComposeEnabled = 0;
+
+    yehHamzaComposeEnabled = ((options&U_SHAPE_YEHHAMZA_MASK) == U_SHAPE_YEHHAMZA_TWOCELL_NEAR) ? 1 : 0;
+    seenComposeEnabled = ((options&U_SHAPE_SEEN_MASK) == U_SHAPE_SEEN_TWOCELL_NEAR)? 1 : 0;
+
+    /*
+     *This for loop changes the buffer from the Unicode FE range to
+     *the Unicode 06 range
+     */
+
+    for(i = 0; i < sourceLength; i++) {
+        UChar  inputChar = dest[i];
+        if ( (inputChar >= 0xFB50) && (inputChar <= 0xFBFF)) { /* FBxx Arabic range */
+            UChar c = convertFBto06 [ (inputChar - 0xFB50) ];
+            if (c != 0)
+                dest[i] = c;
+        } else if( (yehHamzaComposeEnabled == 1) && ((inputChar == HAMZA06_CHAR) || (inputChar == HAMZAFE_CHAR))
+                && (i < (sourceLength - 1)) && isAlefMaksouraChar(dest[i+1] )) {
+                 dest[i] = SPACE_CHAR;
+                 dest[i+1] = YEH_HAMZA_CHAR;
+        } else if ( (seenComposeEnabled == 1) && (isTailChar(inputChar)) && (i< (sourceLength - 1))
+                        && (isSeenTailFamilyChar(dest[i+1])) ) {
+                dest[i] = SPACE_CHAR;
+        } else if (( inputChar >= 0xFE70) && (inputChar <= 0xFEF4 )) { /* FExx Arabic range */
+                dest[i] = convertFEto06 [ (inputChar - 0xFE70) ];
+        } else {
+            dest[i] = inputChar ;
+        }
+
+        if( isLamAlefChar(dest[i]) )
+            lamalef_found = 1;
+    }
+
+   destSize = sourceLength;
+   if (lamalef_found != 0){
+          destSize = expandCompositChar(dest,sourceLength,destSize,options,pErrorCode,DESHAPE_MODE, shapeVars);
+   }
+   return destSize;
+}
+
+/*
+ ****************************************
+ * u_shapeArabic
+ ****************************************
+ */
+
+U_CAPI int32_t U_EXPORT2
+u_shapeArabic(const UChar *source, int32_t sourceLength,
+              UChar *dest, int32_t destCapacity,
+              uint32_t options,
+              UErrorCode *pErrorCode) {
+
+    int32_t destLength;
+    struct  uShapeVariables shapeVars = { OLD_TAIL_CHAR,U_SHAPE_LAMALEF_BEGIN,U_SHAPE_LAMALEF_END,U_SHAPE_TASHKEEL_BEGIN,U_SHAPE_TASHKEEL_END,0};
+
+    /* usual error checking */
+    if(pErrorCode==NULL || U_FAILURE(*pErrorCode)) {
+        return 0;
+    }
+
+    /* make sure that no reserved options values are used; allow dest==NULL only for preflighting */
+    if( source==NULL || sourceLength<-1 || (dest==NULL && destCapacity!=0) || destCapacity<0 ||
+                (((options&U_SHAPE_TASHKEEL_MASK) > 0) &&
+                 ((options&U_SHAPE_LETTERS_SHAPE_TASHKEEL_ISOLATED) == U_SHAPE_LETTERS_SHAPE_TASHKEEL_ISOLATED) ) ||
+                (((options&U_SHAPE_TASHKEEL_MASK) > 0) &&
+                 ((options&U_SHAPE_LETTERS_MASK) == U_SHAPE_LETTERS_UNSHAPE)) ||
+                (options&U_SHAPE_DIGIT_TYPE_RESERVED)==U_SHAPE_DIGIT_TYPE_RESERVED ||
+                (options&U_SHAPE_DIGITS_MASK)==U_SHAPE_DIGITS_RESERVED ||
+                ((options&U_SHAPE_LAMALEF_MASK) != U_SHAPE_LAMALEF_RESIZE  &&
+                (options&U_SHAPE_AGGREGATE_TASHKEEL_MASK) != 0) ||
+                ((options&U_SHAPE_AGGREGATE_TASHKEEL_MASK) == U_SHAPE_AGGREGATE_TASHKEEL &&
+                (options&U_SHAPE_LETTERS_SHAPE_TASHKEEL_ISOLATED) != U_SHAPE_LETTERS_SHAPE_TASHKEEL_ISOLATED)
+    )
+    {
+        *pErrorCode=U_ILLEGAL_ARGUMENT_ERROR;
+        return 0;
+    }
+    /* Validate  lamalef options */
+    if(((options&U_SHAPE_LAMALEF_MASK) > 0)&&
+              !(((options & U_SHAPE_LAMALEF_MASK)==U_SHAPE_LAMALEF_BEGIN) ||
+                ((options & U_SHAPE_LAMALEF_MASK)==U_SHAPE_LAMALEF_END ) ||
+                ((options & U_SHAPE_LAMALEF_MASK)==U_SHAPE_LAMALEF_RESIZE )||
+                 ((options & U_SHAPE_LAMALEF_MASK)==U_SHAPE_LAMALEF_AUTO) ||
+                 ((options & U_SHAPE_LAMALEF_MASK)==U_SHAPE_LAMALEF_NEAR)))
+    {
+         *pErrorCode=U_ILLEGAL_ARGUMENT_ERROR;
+        return 0;
+    }
+    /* Validate  Tashkeel options */
+    if(((options&U_SHAPE_TASHKEEL_MASK) > 0)&&
+                   !(((options & U_SHAPE_TASHKEEL_MASK)==U_SHAPE_TASHKEEL_BEGIN) ||
+                     ((options & U_SHAPE_TASHKEEL_MASK)==U_SHAPE_TASHKEEL_END )
+                    ||((options & U_SHAPE_TASHKEEL_MASK)==U_SHAPE_TASHKEEL_RESIZE )||
+                    ((options & U_SHAPE_TASHKEEL_MASK)==U_SHAPE_TASHKEEL_REPLACE_BY_TATWEEL)))
+    {
+         *pErrorCode=U_ILLEGAL_ARGUMENT_ERROR;
+        return 0;
+    }
+    /* determine the source length */
+    if(sourceLength==-1) {
+        sourceLength=u_strlen(source);
+    }
+    if(sourceLength<=0) {
+        return u_terminateUChars(dest, destCapacity, 0, pErrorCode);
+    }
+
+    /* check that source and destination do not overlap */
+    if( dest!=NULL &&
+        ((source<=dest && dest<source+sourceLength) ||
+         (dest<=source && source<dest+destCapacity))) {
+        *pErrorCode=U_ILLEGAL_ARGUMENT_ERROR;
+        return 0;
+    }
+
+    /* Does Options contain the new Seen Tail Unicode code point option */
+    if ( (options&U_SHAPE_TAIL_TYPE_MASK) == U_SHAPE_TAIL_NEW_UNICODE){
+        shapeVars.tailChar = NEW_TAIL_CHAR;
+    }else {
+        shapeVars.tailChar = OLD_TAIL_CHAR;
+    }
+
+    if((options&U_SHAPE_LETTERS_MASK)!=U_SHAPE_LETTERS_NOOP) {
+        UChar buffer[300];
+        UChar *tempbuffer, *tempsource = NULL;
+        int32_t outputSize, spacesCountl=0, spacesCountr=0;
+
+        if((options&U_SHAPE_AGGREGATE_TASHKEEL_MASK)>0) {
+            int32_t logical_order = (options&U_SHAPE_TEXT_DIRECTION_MASK) == U_SHAPE_TEXT_DIRECTION_LOGICAL;
+            int32_t aggregate_tashkeel =
+                        (options&(U_SHAPE_AGGREGATE_TASHKEEL_MASK+U_SHAPE_LETTERS_SHAPE_TASHKEEL_ISOLATED)) ==
+                        (U_SHAPE_AGGREGATE_TASHKEEL+U_SHAPE_LETTERS_SHAPE_TASHKEEL_ISOLATED);
+            int step=logical_order?1:-1;
+            int j=logical_order?-1:2*sourceLength;
+            int i=logical_order?-1:sourceLength;
+            int end=logical_order?sourceLength:-1;
+            int aggregation_possible = 1;
+            UChar prev = 0;
+            UChar prevLink, currLink = 0;
+            int newSourceLength = 0;
+            tempsource = (UChar *)uprv_malloc(2*sourceLength*U_SIZEOF_UCHAR);
+            if(tempsource == NULL) {
+                *pErrorCode = U_MEMORY_ALLOCATION_ERROR;
+                return 0;
+            }
+
+            while ((i+=step) != end) {
+                prevLink = currLink;
+                currLink = getLink(source[i]);
+                if (aggregate_tashkeel && ((prevLink|currLink)&COMBINE) == COMBINE && aggregation_possible) {
+                    aggregation_possible = 0;
+                    tempsource[j] = (prev<source[i]?prev:source[i])-0x064C+0xFC5E;
+                    currLink = getLink(tempsource[j]);
+                } else {
+                    aggregation_possible = 1;
+                    tempsource[j+=step] = source[i];
+                    prev = source[i];
+                    newSourceLength++;
+                }
+            }
+            source = tempsource+(logical_order?0:j);
+            sourceLength = newSourceLength;
+        }
+
+        /* calculate destination size */
+        /* TODO: do we ever need to do this pure preflighting? */
+        if(((options&U_SHAPE_LAMALEF_MASK)==U_SHAPE_LAMALEF_RESIZE) ||
+           ((options&U_SHAPE_TASHKEEL_MASK)==U_SHAPE_TASHKEEL_RESIZE)) {
+            outputSize=calculateSize(source,sourceLength,destCapacity,options);
+        } else {
+            outputSize=sourceLength;
+        }
+
+        if(outputSize>destCapacity) {
+            *pErrorCode=U_BUFFER_OVERFLOW_ERROR;
+                if (tempsource != NULL) uprv_free(tempsource);
+            return outputSize;
+        }
+
+        /*
+         * need a temporary buffer of size max(outputSize, sourceLength)
+         * because at first we copy source->temp
+         */
+        if(sourceLength>outputSize) {
+            outputSize=sourceLength;
+        }
+
+        /* Start of Arabic letter shaping part */
+        if(outputSize<=UPRV_LENGTHOF(buffer)) {
+            outputSize=UPRV_LENGTHOF(buffer);
+            tempbuffer=buffer;
+        } else {
+            tempbuffer = (UChar *)uprv_malloc(outputSize*U_SIZEOF_UCHAR);
+
+            /*Test for NULL*/
+            if(tempbuffer == NULL) {
+                *pErrorCode = U_MEMORY_ALLOCATION_ERROR;
+                if (tempsource != NULL) uprv_free(tempsource);
+                return 0;
+            }
+        }
+        u_memcpy(tempbuffer, source, sourceLength);
+        if (tempsource != NULL){
+            uprv_free(tempsource);
+        }
+
+        if(sourceLength<outputSize) {
+            uprv_memset(tempbuffer+sourceLength, 0, (outputSize-sourceLength)*U_SIZEOF_UCHAR);
+        }
+
+        if((options&U_SHAPE_TEXT_DIRECTION_MASK) == U_SHAPE_TEXT_DIRECTION_LOGICAL) {
+            countSpaces(tempbuffer,sourceLength,options,&spacesCountl,&spacesCountr);
+            invertBuffer(tempbuffer,sourceLength,options,spacesCountl,spacesCountr);
+        }
+
+        if((options&U_SHAPE_TEXT_DIRECTION_MASK) == U_SHAPE_TEXT_DIRECTION_VISUAL_LTR) {
+            if((options&U_SHAPE_SPACES_RELATIVE_TO_TEXT_MASK) == U_SHAPE_SPACES_RELATIVE_TO_TEXT_BEGIN_END) {
+                shapeVars.spacesRelativeToTextBeginEnd = 1;
+                shapeVars.uShapeLamalefBegin = U_SHAPE_LAMALEF_END;
+                shapeVars.uShapeLamalefEnd = U_SHAPE_LAMALEF_BEGIN;
+                shapeVars.uShapeTashkeelBegin = U_SHAPE_TASHKEEL_END;
+                shapeVars.uShapeTashkeelEnd = U_SHAPE_TASHKEEL_BEGIN;
+            }
+        }
+
+        switch(options&U_SHAPE_LETTERS_MASK) {
+        case U_SHAPE_LETTERS_SHAPE :
+             if( (options&U_SHAPE_TASHKEEL_MASK)> 0
+                 && ((options&U_SHAPE_TASHKEEL_MASK) !=U_SHAPE_TASHKEEL_REPLACE_BY_TATWEEL)) {
+                /* Call the shaping function with tashkeel flag == 2 for removal of tashkeel */
+                destLength = shapeUnicode(tempbuffer,sourceLength,destCapacity,options,pErrorCode,2,shapeVars);
+             }else {
+                /* default Call the shaping function with tashkeel flag == 1 */
+                destLength = shapeUnicode(tempbuffer,sourceLength,destCapacity,options,pErrorCode,1,shapeVars);
+
+                /*After shaping text check if user wants to remove tashkeel and replace it with tatweel*/
+                if( (options&U_SHAPE_TASHKEEL_MASK) == U_SHAPE_TASHKEEL_REPLACE_BY_TATWEEL){
+                  destLength = handleTashkeelWithTatweel(tempbuffer,destLength,destCapacity,options,pErrorCode);
+                }
+            }
+            break;
+        case U_SHAPE_LETTERS_SHAPE_TASHKEEL_ISOLATED :
+            /* Call the shaping function with tashkeel flag == 0 */
+            destLength = shapeUnicode(tempbuffer,sourceLength,destCapacity,options,pErrorCode,0,shapeVars);
+            break;
+
+        case U_SHAPE_LETTERS_UNSHAPE :
+            /* Call the deshaping function */
+            destLength = deShapeUnicode(tempbuffer,sourceLength,destCapacity,options,pErrorCode,shapeVars);
+            break;
+        default :
+            /* will never occur because of validity checks above */
+            destLength = 0;
+            break;
+        }
+
+        /*
+         * TODO: (markus 2002aug01)
+         * For as long as we always preflight the outputSize above
+         * we should U_ASSERT(outputSize==destLength)
+         * except for the adjustment above before the tempbuffer allocation
+         */
+
+        if((options&U_SHAPE_TEXT_DIRECTION_MASK) == U_SHAPE_TEXT_DIRECTION_LOGICAL) {
+            countSpaces(tempbuffer,destLength,options,&spacesCountl,&spacesCountr);
+            invertBuffer(tempbuffer,destLength,options,spacesCountl,spacesCountr);
+        }
+        u_memcpy(dest, tempbuffer, uprv_min(destLength, destCapacity));
+
+        if(tempbuffer!=buffer) {
+            uprv_free(tempbuffer);
+        }
+
+        if(destLength>destCapacity) {
+            *pErrorCode=U_BUFFER_OVERFLOW_ERROR;
+            return destLength;
+        }
+
+        /* End of Arabic letter shaping part */
+    } else {
+        /*
+         * No letter shaping:
+         * just make sure the destination is large enough and copy the string.
+         */
+        if(destCapacity<sourceLength) {
+            /* this catches preflighting, too */
+            *pErrorCode=U_BUFFER_OVERFLOW_ERROR;
+            return sourceLength;
+        }
+        u_memcpy(dest, source, sourceLength);
+        destLength=sourceLength;
+    }
+
+    /*
+     * Perform number shaping.
+     * With UTF-16 or UTF-32, the length of the string is constant.
+     * The easiest way to do this is to operate on the destination and
+     * "shape" the digits in-place.
+     */
+    if((options&U_SHAPE_DIGITS_MASK)!=U_SHAPE_DIGITS_NOOP) {
+        UChar digitBase;
+        int32_t i;
+
+        /* select the requested digit group */
+        switch(options&U_SHAPE_DIGIT_TYPE_MASK) {
+        case U_SHAPE_DIGIT_TYPE_AN:
+            digitBase=0x660; /* Unicode: "Arabic-Indic digits" */
+            break;
+        case U_SHAPE_DIGIT_TYPE_AN_EXTENDED:
+            digitBase=0x6f0; /* Unicode: "Eastern Arabic-Indic digits (Persian and Urdu)" */
+            break;
+        default:
+            /* will never occur because of validity checks above */
+            digitBase=0;
+            break;
+        }
+
+        /* perform the requested operation */
+        switch(options&U_SHAPE_DIGITS_MASK) {
+        case U_SHAPE_DIGITS_EN2AN:
+            /* add (digitBase-'0') to each European (ASCII) digit code point */
+            digitBase-=0x30;
+            for(i=0; i<destLength; ++i) {
+                if(((uint32_t)dest[i]-0x30)<10) {
+                    dest[i]+=digitBase;
+                }
+            }
+            break;
+        case U_SHAPE_DIGITS_AN2EN:
+            /* subtract (digitBase-'0') from each Arabic digit code point */
+            for(i=0; i<destLength; ++i) {
+                if(((uint32_t)dest[i]-(uint32_t)digitBase)<10) {
+                    dest[i]-=digitBase-0x30;
+                }
+            }
+            break;
+        case U_SHAPE_DIGITS_ALEN2AN_INIT_LR:
+            _shapeToArabicDigitsWithContext(dest, destLength,
+                                            digitBase,
+                                            (UBool)((options&U_SHAPE_TEXT_DIRECTION_MASK)==U_SHAPE_TEXT_DIRECTION_LOGICAL),
+                                            FALSE);
+            break;
+        case U_SHAPE_DIGITS_ALEN2AN_INIT_AL:
+            _shapeToArabicDigitsWithContext(dest, destLength,
+                                            digitBase,
+                                            (UBool)((options&U_SHAPE_TEXT_DIRECTION_MASK)==U_SHAPE_TEXT_DIRECTION_LOGICAL),
+                                            TRUE);
+            break;
+        default:
+            /* will never occur because of validity checks above */
+            break;
+        }
+    }
+
+    return u_terminateUChars(dest, destCapacity, destLength, pErrorCode);
+}
diff --git a/vendor/icu/src/ustr_imp.h b/vendor/icu/src/ustr_imp.h
new file mode 100644
index 0000000000..258e49dc49
--- /dev/null
+++ b/vendor/icu/src/ustr_imp.h
@@ -0,0 +1,143 @@
+// © 2016 and later: Unicode, Inc. and others.
+// License & terms of use: http://www.unicode.org/copyright.html
+/*  
+**********************************************************************
+*   Copyright (C) 1999-2015, International Business Machines
+*   Corporation and others.  All Rights Reserved.
+**********************************************************************
+*   file name:  ustr_imp.h
+*   encoding:   UTF-8
+*   tab size:   8 (not used)
+*   indentation:4
+*
+*   created on: 2001jan30
+*   created by: Markus W. Scherer
+*/
+
+#ifndef __USTR_IMP_H__
+#define __USTR_IMP_H__
+
+#include <unicode/utypes.h>
+#include <unicode/utf8.h>
+
+/**
+ * Internal option for unorm_cmpEquivFold() for strncmp style.
+ * If set, checks for both string length and terminating NUL.
+ */
+#define _STRNCMP_STYLE 0x1000
+
+/**
+ * Compare two strings in code point order or code unit order.
+ * Works in strcmp style (both lengths -1),
+ * strncmp style (lengths equal and >=0, flag TRUE),
+ * and memcmp/UnicodeString style (at least one length >=0).
+ */
+U_CFUNC int32_t U_EXPORT2
+uprv_strCompare(const UChar *s1, int32_t length1,
+                const UChar *s2, int32_t length2,
+                UBool strncmpStyle, UBool codePointOrder);
+
+U_CAPI int32_t U_EXPORT2 
+ustr_hashUCharsN(const UChar *str, int32_t length);
+
+U_CAPI int32_t U_EXPORT2 
+ustr_hashCharsN(const char *str, int32_t length);
+
+U_CAPI int32_t U_EXPORT2
+ustr_hashICharsN(const char *str, int32_t length);
+
+/**
+ * NUL-terminate a UChar * string if possible.
+ * If length  < destCapacity then NUL-terminate.
+ * If length == destCapacity then do not terminate but set U_STRING_NOT_TERMINATED_WARNING.
+ * If length  > destCapacity then do not terminate but set U_BUFFER_OVERFLOW_ERROR.
+ *
+ * @param dest Destination buffer, can be NULL if destCapacity==0.
+ * @param destCapacity Number of UChars available at dest.
+ * @param length Number of UChars that were (to be) written to dest.
+ * @param pErrorCode ICU error code.
+ * @return length
+ */
+U_CAPI int32_t U_EXPORT2
+u_terminateUChars(UChar *dest, int32_t destCapacity, int32_t length, UErrorCode *pErrorCode);
+
+/**
+ * NUL-terminate a char * string if possible.
+ * Same as u_terminateUChars() but for a different string type.
+ */
+U_CAPI int32_t U_EXPORT2
+u_terminateChars(char *dest, int32_t destCapacity, int32_t length, UErrorCode *pErrorCode);
+
+/**
+ * NUL-terminate a UChar32 * string if possible.
+ * Same as u_terminateUChars() but for a different string type.
+ */
+U_CAPI int32_t U_EXPORT2
+u_terminateUChar32s(UChar32 *dest, int32_t destCapacity, int32_t length, UErrorCode *pErrorCode);
+
+/**
+ * NUL-terminate a wchar_t * string if possible.
+ * Same as u_terminateUChars() but for a different string type.
+ */
+U_CAPI int32_t U_EXPORT2
+u_terminateWChars(wchar_t *dest, int32_t destCapacity, int32_t length, UErrorCode *pErrorCode);
+
+/**
+ * Counts the bytes of any whole valid sequence for a UTF-8 lead byte.
+ * Returns 1 for ASCII 0..0x7f.
+ * Returns 0 for 0x80..0xc1 as well as for 0xf5..0xff.
+ * leadByte might be evaluated multiple times.
+ *
+ * @param leadByte The first byte of a UTF-8 sequence. Must be 0..0xff.
+ * @return 0..4
+ */
+#define U8_COUNT_BYTES(leadByte) \
+    (U8_IS_SINGLE(leadByte) ? 1 : U8_COUNT_BYTES_NON_ASCII(leadByte))
+
+/**
+ * Counts the bytes of any whole valid sequence for a UTF-8 lead byte.
+ * Returns 0 for 0x00..0xc1 as well as for 0xf5..0xff.
+ * leadByte might be evaluated multiple times.
+ *
+ * @param leadByte The first byte of a UTF-8 sequence. Must be 0..0xff.
+ * @return 0 or 2..4
+ */
+#define U8_COUNT_BYTES_NON_ASCII(leadByte) \
+    (U8_IS_LEAD(leadByte) ? ((uint8_t)(leadByte)>=0xe0)+((uint8_t)(leadByte)>=0xf0)+2 : 0)
+
+#ifdef __cplusplus
+
+U_NAMESPACE_BEGIN
+
+class UTF8 {
+public:
+    UTF8() = delete;  // all static
+
+    /**
+     * Is t a valid UTF-8 trail byte?
+     *
+     * @param prev Must be the preceding lead byte if i==1 and length>=3;
+     *             otherwise ignored.
+     * @param t The i-th byte following the lead byte.
+     * @param i The index (1..3) of byte t in the byte sequence. 0<i<length
+     * @param length The length (2..4) of the byte sequence according to the lead byte.
+     * @return TRUE if t is a valid trail byte in this context.
+     */
+    static inline UBool isValidTrail(int32_t prev, uint8_t t, int32_t i, int32_t length) {
+        // The first trail byte after a 3- or 4-byte lead byte
+        // needs to be validated together with its lead byte.
+        if (length <= 2 || i > 1) {
+            return U8_IS_TRAIL(t);
+        } else if (length == 3) {
+            return U8_IS_VALID_LEAD3_AND_T1(prev, t);
+        } else {  // length == 4
+            return U8_IS_VALID_LEAD4_AND_T1(prev, t);
+        }
+    }
+};
+
+U_NAMESPACE_END
+
+#endif  // __cplusplus
+
+#endif
diff --git a/vendor/icu/src/ustring.cpp b/vendor/icu/src/ustring.cpp
new file mode 100644
index 0000000000..0b2b3e6756
--- /dev/null
+++ b/vendor/icu/src/ustring.cpp
@@ -0,0 +1,1519 @@
+// © 2016 and later: Unicode, Inc. and others.
+// License & terms of use: http://www.unicode.org/copyright.html
+/*
+******************************************************************************
+*
+*   Copyright (C) 1998-2016, International Business Machines
+*   Corporation and others.  All Rights Reserved.
+*
+******************************************************************************
+*
+* File ustring.cpp
+*
+* Modification History:
+*
+*   Date        Name        Description
+*   12/07/98    bertrand    Creation.
+******************************************************************************
+*/
+
+#include <unicode/utypes.h>
+#include <unicode/putil.h>
+#include <unicode/uchar.h>
+#include <unicode/ustring.h>
+#include <unicode/utf16.h>
+#include "cstring.h"
+#include "cwchar.h"
+#include "cmemory.h"
+#include "ustr_imp.h"
+
+/* ANSI string.h - style functions ------------------------------------------ */
+
+/* U+ffff is the highest BMP code point, the highest one that fits into a 16-bit UChar */
+#define U_BMP_MAX 0xffff
+
+/* Forward binary string search functions ----------------------------------- */
+
+/*
+ * Test if a substring match inside a string is at code point boundaries.
+ * All pointers refer to the same buffer.
+ * The limit pointer may be NULL, all others must be real pointers.
+ */
+static inline UBool
+isMatchAtCPBoundary(const UChar *start, const UChar *match, const UChar *matchLimit, const UChar *limit) {
+    if(U16_IS_TRAIL(*match) && start!=match && U16_IS_LEAD(*(match-1))) {
+        /* the leading edge of the match is in the middle of a surrogate pair */
+        return FALSE;
+    }
+    if(U16_IS_LEAD(*(matchLimit-1)) && match!=limit && U16_IS_TRAIL(*matchLimit)) {
+        /* the trailing edge of the match is in the middle of a surrogate pair */
+        return FALSE;
+    }
+    return TRUE;
+}
+
+U_CAPI UChar * U_EXPORT2
+u_strFindFirst(const UChar *s, int32_t length,
+               const UChar *sub, int32_t subLength) {
+    const UChar *start, *p, *q, *subLimit;
+    UChar c, cs, cq;
+
+    if(sub==NULL || subLength<-1) {
+        return (UChar *)s;
+    }
+    if(s==NULL || length<-1) {
+        return NULL;
+    }
+
+    start=s;
+
+    if(length<0 && subLength<0) {
+        /* both strings are NUL-terminated */
+        if((cs=*sub++)==0) {
+            return (UChar *)s;
+        }
+        if(*sub==0 && !U16_IS_SURROGATE(cs)) {
+            /* the substring consists of a single, non-surrogate BMP code point */
+            return u_strchr(s, cs);
+        }
+
+        while((c=*s++)!=0) {
+            if(c==cs) {
+                /* found first substring UChar, compare rest */
+                p=s;
+                q=sub;
+                for(;;) {
+                    if((cq=*q)==0) {
+                        if(isMatchAtCPBoundary(start, s-1, p, NULL)) {
+                            return (UChar *)(s-1); /* well-formed match */
+                        } else {
+                            break; /* no match because surrogate pair is split */
+                        }
+                    }
+                    if((c=*p)==0) {
+                        return NULL; /* no match, and none possible after s */
+                    }
+                    if(c!=cq) {
+                        break; /* no match */
+                    }
+                    ++p;
+                    ++q;
+                }
+            }
+        }
+
+        /* not found */
+        return NULL;
+    }
+
+    if(subLength<0) {
+        subLength=u_strlen(sub);
+    }
+    if(subLength==0) {
+        return (UChar *)s;
+    }
+
+    /* get sub[0] to search for it fast */
+    cs=*sub++;
+    --subLength;
+    subLimit=sub+subLength;
+
+    if(subLength==0 && !U16_IS_SURROGATE(cs)) {
+        /* the substring consists of a single, non-surrogate BMP code point */
+        return length<0 ? u_strchr(s, cs) : u_memchr(s, cs, length);
+    }
+
+    if(length<0) {
+        /* s is NUL-terminated */
+        while((c=*s++)!=0) {
+            if(c==cs) {
+                /* found first substring UChar, compare rest */
+                p=s;
+                q=sub;
+                for(;;) {
+                    if(q==subLimit) {
+                        if(isMatchAtCPBoundary(start, s-1, p, NULL)) {
+                            return (UChar *)(s-1); /* well-formed match */
+                        } else {
+                            break; /* no match because surrogate pair is split */
+                        }
+                    }
+                    if((c=*p)==0) {
+                        return NULL; /* no match, and none possible after s */
+                    }
+                    if(c!=*q) {
+                        break; /* no match */
+                    }
+                    ++p;
+                    ++q;
+                }
+            }
+        }
+    } else {
+        const UChar *limit, *preLimit;
+
+        /* subLength was decremented above */
+        if(length<=subLength) {
+            return NULL; /* s is shorter than sub */
+        }
+
+        limit=s+length;
+
+        /* the substring must start before preLimit */
+        preLimit=limit-subLength;
+
+        while(s!=preLimit) {
+            c=*s++;
+            if(c==cs) {
+                /* found first substring UChar, compare rest */
+                p=s;
+                q=sub;
+                for(;;) {
+                    if(q==subLimit) {
+                        if(isMatchAtCPBoundary(start, s-1, p, limit)) {
+                            return (UChar *)(s-1); /* well-formed match */
+                        } else {
+                            break; /* no match because surrogate pair is split */
+                        }
+                    }
+                    if(*p!=*q) {
+                        break; /* no match */
+                    }
+                    ++p;
+                    ++q;
+                }
+            }
+        }
+    }
+
+    /* not found */
+    return NULL;
+}
+
+U_CAPI UChar * U_EXPORT2
+u_strstr(const UChar *s, const UChar *substring) {
+    return u_strFindFirst(s, -1, substring, -1);
+}
+
+U_CAPI UChar * U_EXPORT2
+u_strchr(const UChar *s, UChar c) {
+    if(U16_IS_SURROGATE(c)) {
+        /* make sure to not find half of a surrogate pair */
+        return u_strFindFirst(s, -1, &c, 1);
+    } else {
+        UChar cs;
+
+        /* trivial search for a BMP code point */
+        for(;;) {
+            if((cs=*s)==c) {
+                return (UChar *)s;
+            }
+            if(cs==0) {
+                return NULL;
+            }
+            ++s;
+        }
+    }
+}
+
+U_CAPI UChar * U_EXPORT2
+u_strchr32(const UChar *s, UChar32 c) {
+    if((uint32_t)c<=U_BMP_MAX) {
+        /* find BMP code point */
+        return u_strchr(s, (UChar)c);
+    } else if((uint32_t)c<=UCHAR_MAX_VALUE) {
+        /* find supplementary code point as surrogate pair */
+        UChar cs, lead=U16_LEAD(c), trail=U16_TRAIL(c);
+
+        while((cs=*s++)!=0) {
+            if(cs==lead && *s==trail) {
+                return (UChar *)(s-1);
+            }
+        }
+        return NULL;
+    } else {
+        /* not a Unicode code point, not findable */
+        return NULL;
+    }
+}
+
+U_CAPI UChar * U_EXPORT2
+u_memchr(const UChar *s, UChar c, int32_t count) {
+    if(count<=0) {
+        return NULL; /* no string */
+    } else if(U16_IS_SURROGATE(c)) {
+        /* make sure to not find half of a surrogate pair */
+        return u_strFindFirst(s, count, &c, 1);
+    } else {
+        /* trivial search for a BMP code point */
+        const UChar *limit=s+count;
+        do {
+            if(*s==c) {
+                return (UChar *)s;
+            }
+        } while(++s!=limit);
+        return NULL;
+    }
+}
+
+U_CAPI UChar * U_EXPORT2
+u_memchr32(const UChar *s, UChar32 c, int32_t count) {
+    if((uint32_t)c<=U_BMP_MAX) {
+        /* find BMP code point */
+        return u_memchr(s, (UChar)c, count);
+    } else if(count<2) {
+        /* too short for a surrogate pair */
+        return NULL;
+    } else if((uint32_t)c<=UCHAR_MAX_VALUE) {
+        /* find supplementary code point as surrogate pair */
+        const UChar *limit=s+count-1; /* -1 so that we do not need a separate check for the trail unit */
+        UChar lead=U16_LEAD(c), trail=U16_TRAIL(c);
+
+        do {
+            if(*s==lead && *(s+1)==trail) {
+                return (UChar *)s;
+            }
+        } while(++s!=limit);
+        return NULL;
+    } else {
+        /* not a Unicode code point, not findable */
+        return NULL;
+    }
+}
+
+/* Backward binary string search functions ---------------------------------- */
+
+U_CAPI UChar * U_EXPORT2
+u_strFindLast(const UChar *s, int32_t length,
+              const UChar *sub, int32_t subLength) {
+    const UChar *start, *limit, *p, *q, *subLimit;
+    UChar c, cs;
+
+    if(sub==NULL || subLength<-1) {
+        return (UChar *)s;
+    }
+    if(s==NULL || length<-1) {
+        return NULL;
+    }
+
+    /*
+     * This implementation is more lazy than the one for u_strFindFirst():
+     * There is no special search code for NUL-terminated strings.
+     * It does not seem to be worth it for searching substrings to
+     * search forward and find all matches like in u_strrchr() and similar.
+     * Therefore, we simply get both string lengths and search backward.
+     *
+     * markus 2002oct23
+     */
+
+    if(subLength<0) {
+        subLength=u_strlen(sub);
+    }
+    if(subLength==0) {
+        return (UChar *)s;
+    }
+
+    /* get sub[subLength-1] to search for it fast */
+    subLimit=sub+subLength;
+    cs=*(--subLimit);
+    --subLength;
+
+    if(subLength==0 && !U16_IS_SURROGATE(cs)) {
+        /* the substring consists of a single, non-surrogate BMP code point */
+        return length<0 ? u_strrchr(s, cs) : u_memrchr(s, cs, length);
+    }
+
+    if(length<0) {
+        length=u_strlen(s);
+    }
+
+    /* subLength was decremented above */
+    if(length<=subLength) {
+        return NULL; /* s is shorter than sub */
+    }
+
+    start=s;
+    limit=s+length;
+
+    /* the substring must start no later than s+subLength */
+    s+=subLength;
+
+    while(s!=limit) {
+        c=*(--limit);
+        if(c==cs) {
+            /* found last substring UChar, compare rest */
+            p=limit;
+            q=subLimit;
+            for(;;) {
+                if(q==sub) {
+                    if(isMatchAtCPBoundary(start, p, limit+1, start+length)) {
+                        return (UChar *)p; /* well-formed match */
+                    } else {
+                        break; /* no match because surrogate pair is split */
+                    }
+                }
+                if(*(--p)!=*(--q)) {
+                    break; /* no match */
+                }
+            }
+        }
+    }
+
+    /* not found */
+    return NULL;
+}
+
+U_CAPI UChar * U_EXPORT2
+u_strrstr(const UChar *s, const UChar *substring) {
+    return u_strFindLast(s, -1, substring, -1);
+}
+
+U_CAPI UChar * U_EXPORT2
+u_strrchr(const UChar *s, UChar c) {
+    if(U16_IS_SURROGATE(c)) {
+        /* make sure to not find half of a surrogate pair */
+        return u_strFindLast(s, -1, &c, 1);
+    } else {
+        const UChar *result=NULL;
+        UChar cs;
+
+        /* trivial search for a BMP code point */
+        for(;;) {
+            if((cs=*s)==c) {
+                result=s;
+            }
+            if(cs==0) {
+                return (UChar *)result;
+            }
+            ++s;
+        }
+    }
+}
+
+U_CAPI UChar * U_EXPORT2
+u_strrchr32(const UChar *s, UChar32 c) {
+    if((uint32_t)c<=U_BMP_MAX) {
+        /* find BMP code point */
+        return u_strrchr(s, (UChar)c);
+    } else if((uint32_t)c<=UCHAR_MAX_VALUE) {
+        /* find supplementary code point as surrogate pair */
+        const UChar *result=NULL;
+        UChar cs, lead=U16_LEAD(c), trail=U16_TRAIL(c);
+
+        while((cs=*s++)!=0) {
+            if(cs==lead && *s==trail) {
+                result=s-1;
+            }
+        }
+        return (UChar *)result;
+    } else {
+        /* not a Unicode code point, not findable */
+        return NULL;
+    }
+}
+
+U_CAPI UChar * U_EXPORT2
+u_memrchr(const UChar *s, UChar c, int32_t count) {
+    if(count<=0) {
+        return NULL; /* no string */
+    } else if(U16_IS_SURROGATE(c)) {
+        /* make sure to not find half of a surrogate pair */
+        return u_strFindLast(s, count, &c, 1);
+    } else {
+        /* trivial search for a BMP code point */
+        const UChar *limit=s+count;
+        do {
+            if(*(--limit)==c) {
+                return (UChar *)limit;
+            }
+        } while(s!=limit);
+        return NULL;
+    }
+}
+
+U_CAPI UChar * U_EXPORT2
+u_memrchr32(const UChar *s, UChar32 c, int32_t count) {
+    if((uint32_t)c<=U_BMP_MAX) {
+        /* find BMP code point */
+        return u_memrchr(s, (UChar)c, count);
+    } else if(count<2) {
+        /* too short for a surrogate pair */
+        return NULL;
+    } else if((uint32_t)c<=UCHAR_MAX_VALUE) {
+        /* find supplementary code point as surrogate pair */
+        const UChar *limit=s+count-1;
+        UChar lead=U16_LEAD(c), trail=U16_TRAIL(c);
+
+        do {
+            if(*limit==trail && *(limit-1)==lead) {
+                return (UChar *)(limit-1);
+            }
+        } while(s!=--limit);
+        return NULL;
+    } else {
+        /* not a Unicode code point, not findable */
+        return NULL;
+    }
+}
+
+/* Tokenization functions --------------------------------------------------- */
+
+/*
+ * Match each code point in a string against each code point in the matchSet.
+ * Return the index of the first string code point that
+ * is (polarity==TRUE) or is not (FALSE) contained in the matchSet.
+ * Return -(string length)-1 if there is no such code point.
+ */
+static int32_t
+_matchFromSet(const UChar *string, const UChar *matchSet, UBool polarity) {
+    int32_t matchLen, matchBMPLen, strItr, matchItr;
+    UChar32 stringCh, matchCh;
+    UChar c, c2;
+
+    /* first part of matchSet contains only BMP code points */
+    matchBMPLen = 0;
+    while((c = matchSet[matchBMPLen]) != 0 && U16_IS_SINGLE(c)) {
+        ++matchBMPLen;
+    }
+
+    /* second part of matchSet contains BMP and supplementary code points */
+    matchLen = matchBMPLen;
+    while(matchSet[matchLen] != 0) {
+        ++matchLen;
+    }
+
+    for(strItr = 0; (c = string[strItr]) != 0;) {
+        ++strItr;
+        if(U16_IS_SINGLE(c)) {
+            if(polarity) {
+                for(matchItr = 0; matchItr < matchLen; ++matchItr) {
+                    if(c == matchSet[matchItr]) {
+                        return strItr - 1; /* one matches */
+                    }
+                }
+            } else {
+                for(matchItr = 0; matchItr < matchLen; ++matchItr) {
+                    if(c == matchSet[matchItr]) {
+                        goto endloop;
+                    }
+                }
+                return strItr - 1; /* none matches */
+            }
+        } else {
+            /*
+             * No need to check for string length before U16_IS_TRAIL
+             * because c2 could at worst be the terminating NUL.
+             */
+            if(U16_IS_SURROGATE_LEAD(c) && U16_IS_TRAIL(c2 = string[strItr])) {
+                ++strItr;
+                stringCh = U16_GET_SUPPLEMENTARY(c, c2);
+            } else {
+                stringCh = c; /* unpaired trail surrogate */
+            }
+
+            if(polarity) {
+                for(matchItr = matchBMPLen; matchItr < matchLen;) {
+                    U16_NEXT(matchSet, matchItr, matchLen, matchCh);
+                    if(stringCh == matchCh) {
+                        return strItr - U16_LENGTH(stringCh); /* one matches */
+                    }
+                }
+            } else {
+                for(matchItr = matchBMPLen; matchItr < matchLen;) {
+                    U16_NEXT(matchSet, matchItr, matchLen, matchCh);
+                    if(stringCh == matchCh) {
+                        goto endloop;
+                    }
+                }
+                return strItr - U16_LENGTH(stringCh); /* none matches */
+            }
+        }
+endloop:
+        /* wish C had continue with labels like Java... */;
+    }
+
+    /* Didn't find it. */
+    return -strItr-1;
+}
+
+/* Search for a codepoint in a string that matches one of the matchSet codepoints. */
+U_CAPI UChar * U_EXPORT2
+u_strpbrk(const UChar *string, const UChar *matchSet)
+{
+    int32_t idx = _matchFromSet(string, matchSet, TRUE);
+    if(idx >= 0) {
+        return (UChar *)string + idx;
+    } else {
+        return NULL;
+    }
+}
+
+/* Search for a codepoint in a string that matches one of the matchSet codepoints. */
+U_CAPI int32_t U_EXPORT2
+u_strcspn(const UChar *string, const UChar *matchSet)
+{
+    int32_t idx = _matchFromSet(string, matchSet, TRUE);
+    if(idx >= 0) {
+        return idx;
+    } else {
+        return -idx - 1; /* == u_strlen(string) */
+    }
+}
+
+/* Search for a codepoint in a string that does not match one of the matchSet codepoints. */
+U_CAPI int32_t U_EXPORT2
+u_strspn(const UChar *string, const UChar *matchSet)
+{
+    int32_t idx = _matchFromSet(string, matchSet, FALSE);
+    if(idx >= 0) {
+        return idx;
+    } else {
+        return -idx - 1; /* == u_strlen(string) */
+    }
+}
+
+/* ----- Text manipulation functions --- */
+
+U_CAPI UChar* U_EXPORT2
+u_strtok_r(UChar    *src, 
+     const UChar    *delim,
+           UChar   **saveState)
+{
+    UChar *tokSource;
+    UChar *nextToken;
+    uint32_t nonDelimIdx;
+
+    /* If saveState is NULL, the user messed up. */
+    if (src != NULL) {
+        tokSource = src;
+        *saveState = src; /* Set to "src" in case there are no delimiters */
+    }
+    else if (*saveState) {
+        tokSource = *saveState;
+    }
+    else {
+        /* src == NULL && *saveState == NULL */
+        /* This shouldn't happen. We already finished tokenizing. */
+        return NULL;
+    }
+
+    /* Skip initial delimiters */
+    nonDelimIdx = u_strspn(tokSource, delim);
+    tokSource = &tokSource[nonDelimIdx];
+
+    if (*tokSource) {
+        nextToken = u_strpbrk(tokSource, delim);
+        if (nextToken != NULL) {
+            /* Create a token */
+            *(nextToken++) = 0;
+            *saveState = nextToken;
+            return tokSource;
+        }
+        else if (*saveState) {
+            /* Return the last token */
+            *saveState = NULL;
+            return tokSource;
+        }
+    }
+    else {
+        /* No tokens were found. Only delimiters were left. */
+        *saveState = NULL;
+    }
+    return NULL;
+}
+
+/* Miscellaneous functions -------------------------------------------------- */
+
+U_CAPI UChar* U_EXPORT2
+u_strcat(UChar     *dst, 
+    const UChar     *src)
+{
+    UChar *anchor = dst;            /* save a pointer to start of dst */
+
+    while(*dst != 0) {              /* To end of first string          */
+        ++dst;
+    }
+    while((*(dst++) = *(src++)) != 0) {     /* copy string 2 over              */
+    }
+
+    return anchor;
+}
+
+U_CAPI UChar*  U_EXPORT2
+u_strncat(UChar     *dst, 
+     const UChar     *src, 
+     int32_t     n ) 
+{
+    if(n > 0) {
+        UChar *anchor = dst;            /* save a pointer to start of dst */
+
+        while(*dst != 0) {              /* To end of first string          */
+            ++dst;
+        }
+        while((*dst = *src) != 0) {     /* copy string 2 over              */
+            ++dst;
+            if(--n == 0) {
+                *dst = 0;
+                break;
+            }
+            ++src;
+        }
+
+        return anchor;
+    } else {
+        return dst;
+    }
+}
+
+/* ----- Text property functions --- */
+
+U_CAPI int32_t   U_EXPORT2
+u_strcmp(const UChar *s1, 
+    const UChar *s2) 
+{
+    UChar  c1, c2;
+
+    for(;;) {
+        c1=*s1++;
+        c2=*s2++;
+        if (c1 != c2 || c1 == 0) {
+            break;
+        }
+    }
+    return (int32_t)c1 - (int32_t)c2;
+}
+
+U_CFUNC int32_t U_EXPORT2
+uprv_strCompare(const UChar *s1, int32_t length1,
+                const UChar *s2, int32_t length2,
+                UBool strncmpStyle, UBool codePointOrder) {
+    const UChar *start1, *start2, *limit1, *limit2;
+    UChar c1, c2;
+
+    /* setup for fix-up */
+    start1=s1;
+    start2=s2;
+
+    /* compare identical prefixes - they do not need to be fixed up */
+    if(length1<0 && length2<0) {
+        /* strcmp style, both NUL-terminated */
+        if(s1==s2) {
+            return 0;
+        }
+
+        for(;;) {
+            c1=*s1;
+            c2=*s2;
+            if(c1!=c2) {
+                break;
+            }
+            if(c1==0) {
+                return 0;
+            }
+            ++s1;
+            ++s2;
+        }
+
+        /* setup for fix-up */
+        limit1=limit2=NULL;
+    } else if(strncmpStyle) {
+        /* special handling for strncmp, assume length1==length2>=0 but also check for NUL */
+        if(s1==s2) {
+            return 0;
+        }
+
+        limit1=start1+length1;
+
+        for(;;) {
+            /* both lengths are same, check only one limit */
+            if(s1==limit1) {
+                return 0;
+            }
+
+            c1=*s1;
+            c2=*s2;
+            if(c1!=c2) {
+                break;
+            }
+            if(c1==0) {
+                return 0;
+            }
+            ++s1;
+            ++s2;
+        }
+
+        /* setup for fix-up */
+        limit2=start2+length1; /* use length1 here, too, to enforce assumption */
+    } else {
+        /* memcmp/UnicodeString style, both length-specified */
+        int32_t lengthResult;
+
+        if(length1<0) {
+            length1=u_strlen(s1);
+        }
+        if(length2<0) {
+            length2=u_strlen(s2);
+        }
+
+        /* limit1=start1+min(lenght1, length2) */
+        if(length1<length2) {
+            lengthResult=-1;
+            limit1=start1+length1;
+        } else if(length1==length2) {
+            lengthResult=0;
+            limit1=start1+length1;
+        } else /* length1>length2 */ {
+            lengthResult=1;
+            limit1=start1+length2;
+        }
+
+        if(s1==s2) {
+            return lengthResult;
+        }
+
+        for(;;) {
+            /* check pseudo-limit */
+            if(s1==limit1) {
+                return lengthResult;
+            }
+
+            c1=*s1;
+            c2=*s2;
+            if(c1!=c2) {
+                break;
+            }
+            ++s1;
+            ++s2;
+        }
+
+        /* setup for fix-up */
+        limit1=start1+length1;
+        limit2=start2+length2;
+    }
+
+    /* if both values are in or above the surrogate range, fix them up */
+    if(c1>=0xd800 && c2>=0xd800 && codePointOrder) {
+        /* subtract 0x2800 from BMP code points to make them smaller than supplementary ones */
+        if(
+            (c1<=0xdbff && (s1+1)!=limit1 && U16_IS_TRAIL(*(s1+1))) ||
+            (U16_IS_TRAIL(c1) && start1!=s1 && U16_IS_LEAD(*(s1-1)))
+        ) {
+            /* part of a surrogate pair, leave >=d800 */
+        } else {
+            /* BMP code point - may be surrogate code point - make <d800 */
+            c1-=0x2800;
+        }
+
+        if(
+            (c2<=0xdbff && (s2+1)!=limit2 && U16_IS_TRAIL(*(s2+1))) ||
+            (U16_IS_TRAIL(c2) && start2!=s2 && U16_IS_LEAD(*(s2-1)))
+        ) {
+            /* part of a surrogate pair, leave >=d800 */
+        } else {
+            /* BMP code point - may be surrogate code point - make <d800 */
+            c2-=0x2800;
+        }
+    }
+
+    /* now c1 and c2 are in the requested (code unit or code point) order */
+    return (int32_t)c1-(int32_t)c2;
+}
+
+/*
+ * Compare two strings as presented by UCharIterators.
+ * Use code unit or code point order.
+ * When the function returns, it is undefined where the iterators
+ * have stopped.
+ */
+U_CAPI int32_t U_EXPORT2
+u_strCompareIter(UCharIterator *iter1, UCharIterator *iter2, UBool codePointOrder) {
+    UChar32 c1, c2;
+
+    /* argument checking */
+    if(iter1==NULL || iter2==NULL) {
+        return 0; /* bad arguments */
+    }
+    if(iter1==iter2) {
+        return 0; /* identical iterators */
+    }
+
+    /* reset iterators to start? */
+    iter1->move(iter1, 0, UITER_START);
+    iter2->move(iter2, 0, UITER_START);
+
+    /* compare identical prefixes - they do not need to be fixed up */
+    for(;;) {
+        c1=iter1->next(iter1);
+        c2=iter2->next(iter2);
+        if(c1!=c2) {
+            break;
+        }
+        if(c1==-1) {
+            return 0;
+        }
+    }
+
+    /* if both values are in or above the surrogate range, fix them up */
+    if(c1>=0xd800 && c2>=0xd800 && codePointOrder) {
+        /* subtract 0x2800 from BMP code points to make them smaller than supplementary ones */
+        if(
+            (c1<=0xdbff && U16_IS_TRAIL(iter1->current(iter1))) ||
+            (U16_IS_TRAIL(c1) && (iter1->previous(iter1), U16_IS_LEAD(iter1->previous(iter1))))
+        ) {
+            /* part of a surrogate pair, leave >=d800 */
+        } else {
+            /* BMP code point - may be surrogate code point - make <d800 */
+            c1-=0x2800;
+        }
+
+        if(
+            (c2<=0xdbff && U16_IS_TRAIL(iter2->current(iter2))) ||
+            (U16_IS_TRAIL(c2) && (iter2->previous(iter2), U16_IS_LEAD(iter2->previous(iter2))))
+        ) {
+            /* part of a surrogate pair, leave >=d800 */
+        } else {
+            /* BMP code point - may be surrogate code point - make <d800 */
+            c2-=0x2800;
+        }
+    }
+
+    /* now c1 and c2 are in the requested (code unit or code point) order */
+    return (int32_t)c1-(int32_t)c2;
+}
+
+#if 0
+/*
+ * u_strCompareIter() does not leave the iterators _on_ the different units.
+ * This is possible but would cost a few extra indirect function calls to back
+ * up if the last unit (c1 or c2 respectively) was >=0.
+ *
+ * Consistently leaving them _behind_ the different units is not an option
+ * because the current "unit" is the end of the string if that is reached,
+ * and in such a case the iterator does not move.
+ * For example, when comparing "ab" with "abc", both iterators rest _on_ the end
+ * of their strings. Calling previous() on each does not move them to where
+ * the comparison fails.
+ *
+ * So the simplest semantics is to not define where the iterators end up.
+ *
+ * The following fragment is part of what would need to be done for backing up.
+ */
+void fragment {
+        /* iff a surrogate is part of a surrogate pair, leave >=d800 */
+        if(c1<=0xdbff) {
+            if(!U16_IS_TRAIL(iter1->current(iter1))) {
+                /* lead surrogate code point - make <d800 */
+                c1-=0x2800;
+            }
+        } else if(c1<=0xdfff) {
+            int32_t idx=iter1->getIndex(iter1, UITER_CURRENT);
+            iter1->previous(iter1); /* ==c1 */
+            if(!U16_IS_LEAD(iter1->previous(iter1))) {
+                /* trail surrogate code point - make <d800 */
+                c1-=0x2800;
+            }
+            /* go back to behind where the difference is */
+            iter1->move(iter1, idx, UITER_ZERO);
+        } else /* 0xe000<=c1<=0xffff */ {
+            /* BMP code point - make <d800 */
+            c1-=0x2800;
+        }
+}
+#endif
+
+U_CAPI int32_t U_EXPORT2
+u_strCompare(const UChar *s1, int32_t length1,
+             const UChar *s2, int32_t length2,
+             UBool codePointOrder) {
+    /* argument checking */
+    if(s1==NULL || length1<-1 || s2==NULL || length2<-1) {
+        return 0;
+    }
+    return uprv_strCompare(s1, length1, s2, length2, FALSE, codePointOrder);
+}
+
+/* String compare in code point order - u_strcmp() compares in code unit order. */
+U_CAPI int32_t U_EXPORT2
+u_strcmpCodePointOrder(const UChar *s1, const UChar *s2) {
+    return uprv_strCompare(s1, -1, s2, -1, FALSE, TRUE);
+}
+
+U_CAPI int32_t   U_EXPORT2
+u_strncmp(const UChar     *s1, 
+     const UChar     *s2, 
+     int32_t     n) 
+{
+    if(n > 0) {
+        int32_t rc;
+        for(;;) {
+            rc = (int32_t)*s1 - (int32_t)*s2;
+            if(rc != 0 || *s1 == 0 || --n == 0) {
+                return rc;
+            }
+            ++s1;
+            ++s2;
+        }
+    } else {
+        return 0;
+    }
+}
+
+U_CAPI int32_t U_EXPORT2
+u_strncmpCodePointOrder(const UChar *s1, const UChar *s2, int32_t n) {
+    return uprv_strCompare(s1, n, s2, n, TRUE, TRUE);
+}
+
+U_CAPI UChar* U_EXPORT2
+u_strcpy(UChar     *dst, 
+    const UChar     *src) 
+{
+    UChar *anchor = dst;            /* save a pointer to start of dst */
+
+    while((*(dst++) = *(src++)) != 0) {     /* copy string 2 over              */
+    }
+
+    return anchor;
+}
+
+U_CAPI UChar*  U_EXPORT2
+u_strncpy(UChar     *dst, 
+     const UChar     *src, 
+     int32_t     n) 
+{
+    UChar *anchor = dst;            /* save a pointer to start of dst */
+
+    /* copy string 2 over */
+    while(n > 0 && (*(dst++) = *(src++)) != 0) {
+        --n;
+    }
+
+    return anchor;
+}
+
+U_CAPI int32_t   U_EXPORT2
+u_strlen(const UChar *s) 
+{
+#if U_SIZEOF_WCHAR_T == U_SIZEOF_UCHAR
+    return (int32_t)uprv_wcslen((const wchar_t *)s);
+#else
+    const UChar *t = s;
+    while(*t != 0) {
+      ++t;
+    }
+    return t - s;
+#endif
+}
+
+U_CAPI int32_t U_EXPORT2
+u_countChar32(const UChar *s, int32_t length) {
+    int32_t count;
+
+    if(s==NULL || length<-1) {
+        return 0;
+    }
+
+    count=0;
+    if(length>=0) {
+        while(length>0) {
+            ++count;
+            if(U16_IS_LEAD(*s) && length>=2 && U16_IS_TRAIL(*(s+1))) {
+                s+=2;
+                length-=2;
+            } else {
+                ++s;
+                --length;
+            }
+        }
+    } else /* length==-1 */ {
+        UChar c;
+
+        for(;;) {
+            if((c=*s++)==0) {
+                break;
+            }
+            ++count;
+
+            /*
+             * sufficient to look ahead one because of UTF-16;
+             * safe to look ahead one because at worst that would be the terminating NUL
+             */
+            if(U16_IS_LEAD(c) && U16_IS_TRAIL(*s)) {
+                ++s;
+            }
+        }
+    }
+    return count;
+}
+
+U_CAPI UBool U_EXPORT2
+u_strHasMoreChar32Than(const UChar *s, int32_t length, int32_t number) {
+
+    if(number<0) {
+        return TRUE;
+    }
+    if(s==NULL || length<-1) {
+        return FALSE;
+    }
+
+    if(length==-1) {
+        /* s is NUL-terminated */
+        UChar c;
+
+        /* count code points until they exceed */
+        for(;;) {
+            if((c=*s++)==0) {
+                return FALSE;
+            }
+            if(number==0) {
+                return TRUE;
+            }
+            if(U16_IS_LEAD(c) && U16_IS_TRAIL(*s)) {
+                ++s;
+            }
+            --number;
+        }
+    } else {
+        /* length>=0 known */
+        const UChar *limit;
+        int32_t maxSupplementary;
+
+        /* s contains at least (length+1)/2 code points: <=2 UChars per cp */
+        if(((length+1)/2)>number) {
+            return TRUE;
+        }
+
+        /* check if s does not even contain enough UChars */
+        maxSupplementary=length-number;
+        if(maxSupplementary<=0) {
+            return FALSE;
+        }
+        /* there are maxSupplementary=length-number more UChars than asked-for code points */
+
+        /*
+         * count code points until they exceed and also check that there are
+         * no more than maxSupplementary supplementary code points (UChar pairs)
+         */
+        limit=s+length;
+        for(;;) {
+            if(s==limit) {
+                return FALSE;
+            }
+            if(number==0) {
+                return TRUE;
+            }
+            if(U16_IS_LEAD(*s++) && s!=limit && U16_IS_TRAIL(*s)) {
+                ++s;
+                if(--maxSupplementary<=0) {
+                    /* too many pairs - too few code points */
+                    return FALSE;
+                }
+            }
+            --number;
+        }
+    }
+}
+
+U_CAPI UChar * U_EXPORT2
+u_memcpy(UChar *dest, const UChar *src, int32_t count) {
+    if(count > 0) {
+        uprv_memcpy(dest, src, (size_t)count*U_SIZEOF_UCHAR);
+    }
+    return dest;
+}
+
+U_CAPI UChar * U_EXPORT2
+u_memmove(UChar *dest, const UChar *src, int32_t count) {
+    if(count > 0) {
+        uprv_memmove(dest, src, (size_t)count*U_SIZEOF_UCHAR);
+    }
+    return dest;
+}
+
+U_CAPI UChar * U_EXPORT2
+u_memset(UChar *dest, UChar c, int32_t count) {
+    if(count > 0) {
+        UChar *ptr = dest;
+        UChar *limit = dest + count;
+
+        while (ptr < limit) {
+            *(ptr++) = c;
+        }
+    }
+    return dest;
+}
+
+U_CAPI int32_t U_EXPORT2
+u_memcmp(const UChar *buf1, const UChar *buf2, int32_t count) {
+    if(count > 0) {
+        const UChar *limit = buf1 + count;
+        int32_t result;
+
+        while (buf1 < limit) {
+            result = (int32_t)(uint16_t)*buf1 - (int32_t)(uint16_t)*buf2;
+            if (result != 0) {
+                return result;
+            }
+            buf1++;
+            buf2++;
+        }
+    }
+    return 0;
+}
+
+U_CAPI int32_t U_EXPORT2
+u_memcmpCodePointOrder(const UChar *s1, const UChar *s2, int32_t count) {
+    return uprv_strCompare(s1, count, s2, count, FALSE, TRUE);
+}
+
+/* u_unescape & support fns ------------------------------------------------- */
+
+/* This map must be in ASCENDING ORDER OF THE ESCAPE CODE */
+static const UChar UNESCAPE_MAP[] = {
+    /*"   0x22, 0x22 */
+    /*'   0x27, 0x27 */
+    /*?   0x3F, 0x3F */
+    /*\   0x5C, 0x5C */
+    /*a*/ 0x61, 0x07,
+    /*b*/ 0x62, 0x08,
+    /*e*/ 0x65, 0x1b,
+    /*f*/ 0x66, 0x0c,
+    /*n*/ 0x6E, 0x0a,
+    /*r*/ 0x72, 0x0d,
+    /*t*/ 0x74, 0x09,
+    /*v*/ 0x76, 0x0b
+};
+enum { UNESCAPE_MAP_LENGTH = UPRV_LENGTHOF(UNESCAPE_MAP) };
+
+/* Convert one octal digit to a numeric value 0..7, or -1 on failure */
+static int8_t _digit8(UChar c) {
+    if (c >= 0x0030 && c <= 0x0037) {
+        return (int8_t)(c - 0x0030);
+    }
+    return -1;
+}
+
+/* Convert one hex digit to a numeric value 0..F, or -1 on failure */
+static int8_t _digit16(UChar c) {
+    if (c >= 0x0030 && c <= 0x0039) {
+        return (int8_t)(c - 0x0030);
+    }
+    if (c >= 0x0041 && c <= 0x0046) {
+        return (int8_t)(c - (0x0041 - 10));
+    }
+    if (c >= 0x0061 && c <= 0x0066) {
+        return (int8_t)(c - (0x0061 - 10));
+    }
+    return -1;
+}
+
+/* Parse a single escape sequence.  Although this method deals in
+ * UChars, it does not use C++ or UnicodeString.  This allows it to
+ * be used from C contexts. */
+U_CAPI UChar32 U_EXPORT2
+u_unescapeAt(UNESCAPE_CHAR_AT charAt,
+             int32_t *offset,
+             int32_t length,
+             void *context) {
+
+    int32_t start = *offset;
+    UChar c;
+    UChar32 result = 0;
+    int8_t n = 0;
+    int8_t minDig = 0;
+    int8_t maxDig = 0;
+    int8_t bitsPerDigit = 4; 
+    int8_t dig;
+    int32_t i;
+    UBool braces = FALSE;
+
+    /* Check that offset is in range */
+    if (*offset < 0 || *offset >= length) {
+        goto err;
+    }
+
+    /* Fetch first UChar after '\\' */
+    c = charAt((*offset)++, context);
+
+    /* Convert hexadecimal and octal escapes */
+    switch (c) {
+    case 0x0075 /*'u'*/:
+        minDig = maxDig = 4;
+        break;
+    case 0x0055 /*'U'*/:
+        minDig = maxDig = 8;
+        break;
+    case 0x0078 /*'x'*/:
+        minDig = 1;
+        if (*offset < length && charAt(*offset, context) == 0x7B /*{*/) {
+            ++(*offset);
+            braces = TRUE;
+            maxDig = 8;
+        } else {
+            maxDig = 2;
+        }
+        break;
+    default:
+        dig = _digit8(c);
+        if (dig >= 0) {
+            minDig = 1;
+            maxDig = 3;
+            n = 1; /* Already have first octal digit */
+            bitsPerDigit = 3;
+            result = dig;
+        }
+        break;
+    }
+    if (minDig != 0) {
+        while (*offset < length && n < maxDig) {
+            c = charAt(*offset, context);
+            dig = (int8_t)((bitsPerDigit == 3) ? _digit8(c) : _digit16(c));
+            if (dig < 0) {
+                break;
+            }
+            result = (result << bitsPerDigit) | dig;
+            ++(*offset);
+            ++n;
+        }
+        if (n < minDig) {
+            goto err;
+        }
+        if (braces) {
+            if (c != 0x7D /*}*/) {
+                goto err;
+            }
+            ++(*offset);
+        }
+        if (result < 0 || result >= 0x110000) {
+            goto err;
+        }
+        /* If an escape sequence specifies a lead surrogate, see if
+         * there is a trail surrogate after it, either as an escape or
+         * as a literal.  If so, join them up into a supplementary.
+         */
+        if (*offset < length && U16_IS_LEAD(result)) {
+            int32_t ahead = *offset + 1;
+            c = charAt(*offset, context);
+            if (c == 0x5C /*'\\'*/ && ahead < length) {
+                c = (UChar) u_unescapeAt(charAt, &ahead, length, context);
+            }
+            if (U16_IS_TRAIL(c)) {
+                *offset = ahead;
+                result = U16_GET_SUPPLEMENTARY(result, c);
+            }
+        }
+        return result;
+    }
+
+    /* Convert C-style escapes in table */
+    for (i=0; i<UNESCAPE_MAP_LENGTH; i+=2) {
+        if (c == UNESCAPE_MAP[i]) {
+            return UNESCAPE_MAP[i+1];
+        } else if (c < UNESCAPE_MAP[i]) {
+            break;
+        }
+    }
+
+    /* Map \cX to control-X: X & 0x1F */
+    if (c == 0x0063 /*'c'*/ && *offset < length) {
+        c = charAt((*offset)++, context);
+        if (U16_IS_LEAD(c) && *offset < length) {
+            UChar c2 = charAt(*offset, context);
+            if (U16_IS_TRAIL(c2)) {
+                ++(*offset);
+                c = (UChar) U16_GET_SUPPLEMENTARY(c, c2); /* [sic] */
+            }
+        }
+        return 0x1F & c;
+    }
+
+    /* If no special forms are recognized, then consider
+     * the backslash to generically escape the next character.
+     * Deal with surrogate pairs. */
+    if (U16_IS_LEAD(c) && *offset < length) {
+        UChar c2 = charAt(*offset, context);
+        if (U16_IS_TRAIL(c2)) {
+            ++(*offset);
+            return U16_GET_SUPPLEMENTARY(c, c2);
+        }
+    }
+    return c;
+
+ err:
+    /* Invalid escape sequence */
+    *offset = start; /* Reset to initial value */
+    return (UChar32)0xFFFFFFFF;
+}
+
+/* u_unescapeAt() callback to return a UChar from a char* */
+static UChar U_CALLCONV
+_charPtr_charAt(int32_t offset, void *context) {
+    UChar c16;
+    /* It would be more efficient to access the invariant tables
+     * directly but there is no API for that. */
+    u_charsToUChars(((char*) context) + offset, &c16, 1);
+    return c16;
+}
+
+/* Append an escape-free segment of the text; used by u_unescape() */
+static void _appendUChars(UChar *dest, int32_t destCapacity,
+                          const char *src, int32_t srcLen) {
+    if (destCapacity < 0) {
+        destCapacity = 0;
+    }
+    if (srcLen > destCapacity) {
+        srcLen = destCapacity;
+    }
+    u_charsToUChars(src, dest, srcLen);
+}
+
+/* Do an invariant conversion of char* -> UChar*, with escape parsing */
+U_CAPI int32_t U_EXPORT2
+u_unescape(const char *src, UChar *dest, int32_t destCapacity) {
+    const char *segment = src;
+    int32_t i = 0;
+    char c;
+
+    while ((c=*src) != 0) {
+        /* '\\' intentionally written as compiler-specific
+         * character constant to correspond to compiler-specific
+         * char* constants. */
+        if (c == '\\') {
+            int32_t lenParsed = 0;
+            UChar32 c32;
+            if (src != segment) {
+                if (dest != NULL) {
+                    _appendUChars(dest + i, destCapacity - i,
+                                  segment, (int32_t)(src - segment));
+                }
+                i += (int32_t)(src - segment);
+            }
+            ++src; /* advance past '\\' */
+            c32 = (UChar32)u_unescapeAt(_charPtr_charAt, &lenParsed, (int32_t)uprv_strlen(src), (void*)src);
+            if (lenParsed == 0) {
+                goto err;
+            }
+            src += lenParsed; /* advance past escape seq. */
+            if (dest != NULL && U16_LENGTH(c32) <= (destCapacity - i)) {
+                U16_APPEND_UNSAFE(dest, i, c32);
+            } else {
+                i += U16_LENGTH(c32);
+            }
+            segment = src;
+        } else {
+            ++src;
+        }
+    }
+    if (src != segment) {
+        if (dest != NULL) {
+            _appendUChars(dest + i, destCapacity - i,
+                          segment, (int32_t)(src - segment));
+        }
+        i += (int32_t)(src - segment);
+    }
+    if (dest != NULL && i < destCapacity) {
+        dest[i] = 0;
+    }
+    return i;
+
+ err:
+    if (dest != NULL && destCapacity > 0) {
+        *dest = 0;
+    }
+    return 0;
+}
+
+/* NUL-termination of strings ----------------------------------------------- */
+
+/**
+ * NUL-terminate a string no matter what its type.
+ * Set warning and error codes accordingly.
+ */
+#define __TERMINATE_STRING(dest, destCapacity, length, pErrorCode)      \
+    if(pErrorCode!=NULL && U_SUCCESS(*pErrorCode)) {                    \
+        /* not a public function, so no complete argument checking */   \
+                                                                        \
+        if(length<0) {                                                  \
+            /* assume that the caller handles this */                   \
+        } else if(length<destCapacity) {                                \
+            /* NUL-terminate the string, the NUL fits */                \
+            dest[length]=0;                                             \
+            /* unset the not-terminated warning but leave all others */ \
+            if(*pErrorCode==U_STRING_NOT_TERMINATED_WARNING) {          \
+                *pErrorCode=U_ZERO_ERROR;                               \
+            }                                                           \
+        } else if(length==destCapacity) {                               \
+            /* unable to NUL-terminate, but the string itself fit - set a warning code */ \
+            *pErrorCode=U_STRING_NOT_TERMINATED_WARNING;                \
+        } else /* length>destCapacity */ {                              \
+            /* even the string itself did not fit - set an error code */ \
+            *pErrorCode=U_BUFFER_OVERFLOW_ERROR;                        \
+        }                                                               \
+    }
+
+U_CAPI int32_t U_EXPORT2
+u_terminateUChars(UChar *dest, int32_t destCapacity, int32_t length, UErrorCode *pErrorCode) {
+    __TERMINATE_STRING(dest, destCapacity, length, pErrorCode);
+    return length;
+}
+
+U_CAPI int32_t U_EXPORT2
+u_terminateChars(char *dest, int32_t destCapacity, int32_t length, UErrorCode *pErrorCode) {
+    __TERMINATE_STRING(dest, destCapacity, length, pErrorCode);
+    return length;
+}
+
+U_CAPI int32_t U_EXPORT2
+u_terminateUChar32s(UChar32 *dest, int32_t destCapacity, int32_t length, UErrorCode *pErrorCode) {
+    __TERMINATE_STRING(dest, destCapacity, length, pErrorCode);
+    return length;
+}
+
+U_CAPI int32_t U_EXPORT2
+u_terminateWChars(wchar_t *dest, int32_t destCapacity, int32_t length, UErrorCode *pErrorCode) {
+    __TERMINATE_STRING(dest, destCapacity, length, pErrorCode);
+    return length;
+}
+
+// Compute the hash code for a string -------------------------------------- ***
+
+// Moved here from uhash.c so that UnicodeString::hashCode() does not depend
+// on UHashtable code.
+
+/*
+  Compute the hash by iterating sparsely over about 32 (up to 63)
+  characters spaced evenly through the string.  For each character,
+  multiply the previous hash value by a prime number and add the new
+  character in, like a linear congruential random number generator,
+  producing a pseudorandom deterministic value well distributed over
+  the output range. [LIU]
+*/
+
+#define STRING_HASH(TYPE, STR, STRLEN, DEREF) \
+    uint32_t hash = 0;                        \
+    const TYPE *p = (const TYPE*) STR;        \
+    if (p != NULL) {                          \
+        int32_t len = (int32_t)(STRLEN);      \
+        int32_t inc = ((len - 32) / 32) + 1;  \
+        const TYPE *limit = p + len;          \
+        while (p<limit) {                     \
+            hash = (hash * 37) + DEREF;       \
+            p += inc;                         \
+        }                                     \
+    }                                         \
+    return static_cast<int32_t>(hash)
+
+/* Used by UnicodeString to compute its hashcode - Not public API. */
+U_CAPI int32_t U_EXPORT2
+ustr_hashUCharsN(const UChar *str, int32_t length) {
+    STRING_HASH(UChar, str, length, *p);
+}
+
+U_CAPI int32_t U_EXPORT2
+ustr_hashCharsN(const char *str, int32_t length) {
+    STRING_HASH(uint8_t, str, length, *p);
+}
+
+U_CAPI int32_t U_EXPORT2
+ustr_hashICharsN(const char *str, int32_t length) {
+    STRING_HASH(char, str, length, (uint8_t)uprv_tolower(*p));
+}
diff --git a/vendor/icu/src/utf_impl.cpp b/vendor/icu/src/utf_impl.cpp
new file mode 100644
index 0000000000..94bc9583c0
--- /dev/null
+++ b/vendor/icu/src/utf_impl.cpp
@@ -0,0 +1,329 @@
+// © 2016 and later: Unicode, Inc. and others.
+// License & terms of use: http://www.unicode.org/copyright.html
+/*
+******************************************************************************
+*
+*   Copyright (C) 1999-2012, International Business Machines
+*   Corporation and others.  All Rights Reserved.
+*
+******************************************************************************
+*   file name:  utf_impl.cpp
+*   encoding:   UTF-8
+*   tab size:   8 (not used)
+*   indentation:4
+*
+*   created on: 1999sep13
+*   created by: Markus W. Scherer
+*
+*   This file provides implementation functions for macros in the utfXX.h
+*   that would otherwise be too long as macros.
+*/
+
+/* set import/export definitions */
+#ifndef U_UTF8_IMPL
+#   define U_UTF8_IMPL
+#endif
+
+#include <unicode/utypes.h>
+#include <unicode/utf.h>
+#include <unicode/utf8.h>
+#include "uassert.h"
+
+/*
+ * Table of the number of utf8 trail bytes, indexed by the lead byte.
+ * Used by the deprecated macro UTF8_COUNT_TRAIL_BYTES, defined in utf_old.h
+ *
+ * The current macro, U8_COUNT_TRAIL_BYTES, does _not_ use this table.
+ *
+ * Note that this table cannot be removed, even if UTF8_COUNT_TRAIL_BYTES were
+ * changed to no longer use it. References to the table from expansions of UTF8_COUNT_TRAIL_BYTES
+ * may exist in old client code that must continue to run with newer icu library versions.
+ *
+ * This table could be replaced on many machines by
+ * a few lines of assembler code using an
+ * "index of first 0-bit from msb" instruction and
+ * one or two more integer instructions.
+ *
+ * For example, on an i386, do something like
+ * - MOV AL, leadByte
+ * - NOT AL         (8-bit, leave b15..b8==0..0, reverse only b7..b0)
+ * - MOV AH, 0
+ * - BSR BX, AX     (16-bit)
+ * - MOV AX, 6      (result)
+ * - JZ finish      (ZF==1 if leadByte==0xff)
+ * - SUB AX, BX (result)
+ * -finish:
+ * (BSR: Bit Scan Reverse, scans for a 1-bit, starting from the MSB)
+ */
+extern "C" U_EXPORT const uint8_t
+utf8_countTrailBytes[256]={
+    0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+    0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+    0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+    0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+
+    0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+    0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+    0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+    0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+
+    0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+    0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+    0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+    0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+
+    // illegal C0 & C1
+    // 2-byte lead bytes C2..DF
+    0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+    1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+
+    // 3-byte lead bytes E0..EF
+    2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+    // 4-byte lead bytes F0..F4
+    // illegal F5..FF
+    3, 3, 3, 3, 3, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
+};
+
+static const UChar32
+utf8_errorValue[6]={
+    // Same values as UTF8_ERROR_VALUE_1, UTF8_ERROR_VALUE_2, UTF_ERROR_VALUE,
+    // but without relying on the obsolete unicode/utf_old.h.
+    0x15, 0x9f, 0xffff,
+    0x10ffff
+};
+
+static UChar32
+errorValue(int32_t count, int8_t strict) {
+    if(strict>=0) {
+        return utf8_errorValue[count];
+    } else if(strict==-3) {
+        return 0xfffd;
+    } else {
+        return U_SENTINEL;
+    }
+}
+
+/*
+ * Handle the non-inline part of the U8_NEXT() and U8_NEXT_FFFD() macros
+ * and their obsolete sibling UTF8_NEXT_CHAR_SAFE().
+ *
+ * U8_NEXT() supports NUL-terminated strings indicated via length<0.
+ *
+ * The "strict" parameter controls the error behavior:
+ * <0  "Safe" behavior of U8_NEXT():
+ *     -1: All illegal byte sequences yield U_SENTINEL=-1.
+ *     -2: Same as -1, except for lenient treatment of surrogate code points as legal.
+ *         Some implementations use this for roundtripping of
+ *         Unicode 16-bit strings that are not well-formed UTF-16, that is, they
+ *         contain unpaired surrogates.
+ *     -3: All illegal byte sequences yield U+FFFD.
+ *  0  Obsolete "safe" behavior of UTF8_NEXT_CHAR_SAFE(..., FALSE):
+ *     All illegal byte sequences yield a positive code point such that this
+ *     result code point would be encoded with the same number of bytes as
+ *     the illegal sequence.
+ * >0  Obsolete "strict" behavior of UTF8_NEXT_CHAR_SAFE(..., TRUE):
+ *     Same as the obsolete "safe" behavior, but non-characters are also treated
+ *     like illegal sequences.
+ *
+ * Note that a UBool is the same as an int8_t.
+ */
+U_CAPI UChar32 U_EXPORT2
+utf8_nextCharSafeBody(const uint8_t *s, int32_t *pi, int32_t length, UChar32 c, UBool strict) {
+    // *pi is one after byte c.
+    int32_t i=*pi;
+    // length can be negative for NUL-terminated strings: Read and validate one byte at a time.
+    if(i==length || c>0xf4) {
+        // end of string, or not a lead byte
+    } else if(c>=0xf0) {
+        // Test for 4-byte sequences first because
+        // U8_NEXT() handles shorter valid sequences inline.
+        uint8_t t1=s[i], t2, t3;
+        c&=7;
+        if(U8_IS_VALID_LEAD4_AND_T1(c, t1) &&
+                ++i!=length && (t2=s[i]-0x80)<=0x3f &&
+                ++i!=length && (t3=s[i]-0x80)<=0x3f) {
+            ++i;
+            c=(c<<18)|((t1&0x3f)<<12)|(t2<<6)|t3;
+            // strict: forbid non-characters like U+fffe
+            if(strict<=0 || !U_IS_UNICODE_NONCHAR(c)) {
+                *pi=i;
+                return c;
+            }
+        }
+    } else if(c>=0xe0) {
+        c&=0xf;
+        if(strict!=-2) {
+            uint8_t t1=s[i], t2;
+            if(U8_IS_VALID_LEAD3_AND_T1(c, t1) &&
+                    ++i!=length && (t2=s[i]-0x80)<=0x3f) {
+                ++i;
+                c=(c<<12)|((t1&0x3f)<<6)|t2;
+                // strict: forbid non-characters like U+fffe
+                if(strict<=0 || !U_IS_UNICODE_NONCHAR(c)) {
+                    *pi=i;
+                    return c;
+                }
+            }
+        } else {
+            // strict=-2 -> lenient: allow surrogates
+            uint8_t t1=s[i]-0x80, t2;
+            if(t1<=0x3f && (c>0 || t1>=0x20) &&
+                    ++i!=length && (t2=s[i]-0x80)<=0x3f) {
+                *pi=i+1;
+                return (c<<12)|(t1<<6)|t2;
+            }
+        }
+    } else if(c>=0xc2) {
+        uint8_t t1=s[i]-0x80;
+        if(t1<=0x3f) {
+            *pi=i+1;
+            return ((c-0xc0)<<6)|t1;
+        }
+    }  // else 0x80<=c<0xc2 is not a lead byte
+
+    /* error handling */
+    c=errorValue(i-*pi, strict);
+    *pi=i;
+    return c;
+}
+
+U_CAPI int32_t U_EXPORT2
+utf8_appendCharSafeBody(uint8_t *s, int32_t i, int32_t length, UChar32 c, UBool *pIsError) {
+    if((uint32_t)(c)<=0x7ff) {
+        if((i)+1<(length)) {
+            (s)[(i)++]=(uint8_t)(((c)>>6)|0xc0);
+            (s)[(i)++]=(uint8_t)(((c)&0x3f)|0x80);
+            return i;
+        }
+    } else if((uint32_t)(c)<=0xffff) {
+        /* Starting with Unicode 3.2, surrogate code points must not be encoded in UTF-8. */
+        if((i)+2<(length) && !U_IS_SURROGATE(c)) {
+            (s)[(i)++]=(uint8_t)(((c)>>12)|0xe0);
+            (s)[(i)++]=(uint8_t)((((c)>>6)&0x3f)|0x80);
+            (s)[(i)++]=(uint8_t)(((c)&0x3f)|0x80);
+            return i;
+        }
+    } else if((uint32_t)(c)<=0x10ffff) {
+        if((i)+3<(length)) {
+            (s)[(i)++]=(uint8_t)(((c)>>18)|0xf0);
+            (s)[(i)++]=(uint8_t)((((c)>>12)&0x3f)|0x80);
+            (s)[(i)++]=(uint8_t)((((c)>>6)&0x3f)|0x80);
+            (s)[(i)++]=(uint8_t)(((c)&0x3f)|0x80);
+            return i;
+        }
+    }
+    /* c>0x10ffff or not enough space, write an error value */
+    if(pIsError!=NULL) {
+        *pIsError=TRUE;
+    } else {
+        length-=i;
+        if(length>0) {
+            int32_t offset;
+            if(length>3) {
+                length=3;
+            }
+            s+=i;
+            offset=0;
+            c=utf8_errorValue[length-1];
+            U8_APPEND_UNSAFE(s, offset, c);
+            i=i+offset;
+        }
+    }
+    return i;
+}
+
+U_CAPI UChar32 U_EXPORT2
+utf8_prevCharSafeBody(const uint8_t *s, int32_t start, int32_t *pi, UChar32 c, UBool strict) {
+    // *pi is the index of byte c.
+    int32_t i=*pi;
+    if(U8_IS_TRAIL(c) && i>start) {
+        uint8_t b1=s[--i];
+        if(U8_IS_LEAD(b1)) {
+            if(b1<0xe0) {
+                *pi=i;
+                return ((b1-0xc0)<<6)|(c&0x3f);
+            } else if(b1<0xf0 ? U8_IS_VALID_LEAD3_AND_T1(b1, c) : U8_IS_VALID_LEAD4_AND_T1(b1, c)) {
+                // Truncated 3- or 4-byte sequence.
+                *pi=i;
+                return errorValue(1, strict);
+            }
+        } else if(U8_IS_TRAIL(b1) && i>start) {
+            // Extract the value bits from the last trail byte.
+            c&=0x3f;
+            uint8_t b2=s[--i];
+            if(0xe0<=b2 && b2<=0xf4) {
+                if(b2<0xf0) {
+                    b2&=0xf;
+                    if(strict!=-2) {
+                        if(U8_IS_VALID_LEAD3_AND_T1(b2, b1)) {
+                            *pi=i;
+                            c=(b2<<12)|((b1&0x3f)<<6)|c;
+                            if(strict<=0 || !U_IS_UNICODE_NONCHAR(c)) {
+                                return c;
+                            } else {
+                                // strict: forbid non-characters like U+fffe
+                                return errorValue(2, strict);
+                            }
+                        }
+                    } else {
+                        // strict=-2 -> lenient: allow surrogates
+                        b1-=0x80;
+                        if((b2>0 || b1>=0x20)) {
+                            *pi=i;
+                            return (b2<<12)|(b1<<6)|c;
+                        }
+                    }
+                } else if(U8_IS_VALID_LEAD4_AND_T1(b2, b1)) {
+                    // Truncated 4-byte sequence.
+                    *pi=i;
+                    return errorValue(2, strict);
+                }
+            } else if(U8_IS_TRAIL(b2) && i>start) {
+                uint8_t b3=s[--i];
+                if(0xf0<=b3 && b3<=0xf4) {
+                    b3&=7;
+                    if(U8_IS_VALID_LEAD4_AND_T1(b3, b2)) {
+                        *pi=i;
+                        c=(b3<<18)|((b2&0x3f)<<12)|((b1&0x3f)<<6)|c;
+                        if(strict<=0 || !U_IS_UNICODE_NONCHAR(c)) {
+                            return c;
+                        } else {
+                            // strict: forbid non-characters like U+fffe
+                            return errorValue(3, strict);
+                        }
+                    }
+                }
+            }
+        }
+    }
+    return errorValue(0, strict);
+}
+
+U_CAPI int32_t U_EXPORT2
+utf8_back1SafeBody(const uint8_t *s, int32_t start, int32_t i) {
+    // Same as utf8_prevCharSafeBody(..., strict=-1) minus assembling code points.
+    int32_t orig_i=i;
+    uint8_t c=s[i];
+    if(U8_IS_TRAIL(c) && i>start) {
+        uint8_t b1=s[--i];
+        if(U8_IS_LEAD(b1)) {
+            if(b1<0xe0 ||
+                    (b1<0xf0 ? U8_IS_VALID_LEAD3_AND_T1(b1, c) : U8_IS_VALID_LEAD4_AND_T1(b1, c))) {
+                return i;
+            }
+        } else if(U8_IS_TRAIL(b1) && i>start) {
+            uint8_t b2=s[--i];
+            if(0xe0<=b2 && b2<=0xf4) {
+                if(b2<0xf0 ? U8_IS_VALID_LEAD3_AND_T1(b2, b1) : U8_IS_VALID_LEAD4_AND_T1(b2, b1)) {
+                    return i;
+                }
+            } else if(U8_IS_TRAIL(b2) && i>start) {
+                uint8_t b3=s[--i];
+                if(0xf0<=b3 && b3<=0xf4 && U8_IS_VALID_LEAD4_AND_T1(b3, b2)) {
+                    return i;
+                }
+            }
+        }
+    }
+    return orig_i;
+}
diff --git a/vendor/icu/src/utrie2.cpp b/vendor/icu/src/utrie2.cpp
new file mode 100644
index 0000000000..0649a03de5
--- /dev/null
+++ b/vendor/icu/src/utrie2.cpp
@@ -0,0 +1,767 @@
+// © 2016 and later: Unicode, Inc. and others.
+// License & terms of use: http://www.unicode.org/copyright.html
+/*
+******************************************************************************
+*
+*   Copyright (C) 2001-2014, International Business Machines
+*   Corporation and others.  All Rights Reserved.
+*
+******************************************************************************
+*   file name:  utrie2.cpp
+*   encoding:   UTF-8
+*   tab size:   8 (not used)
+*   indentation:4
+*
+*   created on: 2008aug16 (starting from a copy of utrie.c)
+*   created by: Markus W. Scherer
+*
+*   This is a common implementation of a Unicode trie.
+*   It is a kind of compressed, serializable table of 16- or 32-bit values associated with
+*   Unicode code points (0..0x10ffff).
+*   This is the second common version of a Unicode trie (hence the name UTrie2).
+*   See utrie2.h for a comparison.
+*
+*   This file contains only the runtime and enumeration code, for read-only access.
+*   See utrie2_builder.c for the builder code.
+*/
+#ifdef UTRIE2_DEBUG
+#   include <stdio.h>
+#endif
+
+#include <unicode/utypes.h>
+#include <unicode/utf.h>
+#include <unicode/utf8.h>
+#include <unicode/utf16.h>
+#include "cmemory.h"
+#include "utrie2.h"
+#include "utrie2_impl.h"
+#include "uassert.h"
+
+/* Public UTrie2 API implementation ----------------------------------------- */
+
+static uint32_t
+get32(const UNewTrie2 *trie, UChar32 c, UBool fromLSCP) {
+    int32_t i2, block;
+
+    if(c>=trie->highStart && (!U_IS_LEAD(c) || fromLSCP)) {
+        return trie->data[trie->dataLength-UTRIE2_DATA_GRANULARITY];
+    }
+
+    if(U_IS_LEAD(c) && fromLSCP) {
+        i2=(UTRIE2_LSCP_INDEX_2_OFFSET-(0xd800>>UTRIE2_SHIFT_2))+
+            (c>>UTRIE2_SHIFT_2);
+    } else {
+        i2=trie->index1[c>>UTRIE2_SHIFT_1]+
+            ((c>>UTRIE2_SHIFT_2)&UTRIE2_INDEX_2_MASK);
+    }
+    block=trie->index2[i2];
+    return trie->data[block+(c&UTRIE2_DATA_MASK)];
+}
+
+U_CAPI uint32_t U_EXPORT2
+utrie2_get32(const UTrie2 *trie, UChar32 c) {
+    if(trie->data16!=NULL) {
+        return UTRIE2_GET16(trie, c);
+    } else if(trie->data32!=NULL) {
+        return UTRIE2_GET32(trie, c);
+    } else if((uint32_t)c>0x10ffff) {
+        return trie->errorValue;
+    } else {
+        return get32(trie->newTrie, c, TRUE);
+    }
+}
+
+U_CAPI uint32_t U_EXPORT2
+utrie2_get32FromLeadSurrogateCodeUnit(const UTrie2 *trie, UChar32 c) {
+    if(!U_IS_LEAD(c)) {
+        return trie->errorValue;
+    }
+    if(trie->data16!=NULL) {
+        return UTRIE2_GET16_FROM_U16_SINGLE_LEAD(trie, c);
+    } else if(trie->data32!=NULL) {
+        return UTRIE2_GET32_FROM_U16_SINGLE_LEAD(trie, c);
+    } else {
+        return get32(trie->newTrie, c, FALSE);
+    }
+}
+
+static inline int32_t
+u8Index(const UTrie2 *trie, UChar32 c, int32_t i) {
+    int32_t idx=
+        _UTRIE2_INDEX_FROM_CP(
+            trie,
+            trie->data32==NULL ? trie->indexLength : 0,
+            c);
+    return (idx<<3)|i;
+}
+
+U_CAPI int32_t U_EXPORT2
+utrie2_internalU8NextIndex(const UTrie2 *trie, UChar32 c,
+                           const uint8_t *src, const uint8_t *limit) {
+    int32_t i, length;
+    i=0;
+    /* support 64-bit pointers by avoiding cast of arbitrary difference */
+    if((limit-src)<=7) {
+        length=(int32_t)(limit-src);
+    } else {
+        length=7;
+    }
+    c=utf8_nextCharSafeBody(src, &i, length, c, -1);
+    return u8Index(trie, c, i);
+}
+
+U_CAPI int32_t U_EXPORT2
+utrie2_internalU8PrevIndex(const UTrie2 *trie, UChar32 c,
+                           const uint8_t *start, const uint8_t *src) {
+    int32_t i, length;
+    /* support 64-bit pointers by avoiding cast of arbitrary difference */
+    if((src-start)<=7) {
+        i=length=(int32_t)(src-start);
+    } else {
+        i=length=7;
+        start=src-7;
+    }
+    c=utf8_prevCharSafeBody(start, 0, &i, c, -1);
+    i=length-i;  /* number of bytes read backward from src */
+    return u8Index(trie, c, i);
+}
+
+U_CAPI UTrie2 * U_EXPORT2
+utrie2_openFromSerialized(UTrie2ValueBits valueBits,
+                          const void *data, int32_t length, int32_t *pActualLength,
+                          UErrorCode *pErrorCode) {
+    const UTrie2Header *header;
+    const uint16_t *p16;
+    int32_t actualLength;
+
+    UTrie2 tempTrie;
+    UTrie2 *trie;
+
+    if(U_FAILURE(*pErrorCode)) {
+        return 0;
+    }
+
+    if( length<=0 || (U_POINTER_MASK_LSB(data, 3)!=0) ||
+        valueBits<0 || UTRIE2_COUNT_VALUE_BITS<=valueBits
+    ) {
+        *pErrorCode=U_ILLEGAL_ARGUMENT_ERROR;
+        return 0;
+    }
+
+    /* enough data for a trie header? */
+    if(length<(int32_t)sizeof(UTrie2Header)) {
+        *pErrorCode=U_INVALID_FORMAT_ERROR;
+        return 0;
+    }
+
+    /* check the signature */
+    header=(const UTrie2Header *)data;
+    if(header->signature!=UTRIE2_SIG) {
+        *pErrorCode=U_INVALID_FORMAT_ERROR;
+        return 0;
+    }
+
+    /* get the options */
+    if(valueBits!=(UTrie2ValueBits)(header->options&UTRIE2_OPTIONS_VALUE_BITS_MASK)) {
+        *pErrorCode=U_INVALID_FORMAT_ERROR;
+        return 0;
+    }
+
+    /* get the length values and offsets */
+    uprv_memset(&tempTrie, 0, sizeof(tempTrie));
+    tempTrie.indexLength=header->indexLength;
+    tempTrie.dataLength=header->shiftedDataLength<<UTRIE2_INDEX_SHIFT;
+    tempTrie.index2NullOffset=header->index2NullOffset;
+    tempTrie.dataNullOffset=header->dataNullOffset;
+
+    tempTrie.highStart=header->shiftedHighStart<<UTRIE2_SHIFT_1;
+    tempTrie.highValueIndex=tempTrie.dataLength-UTRIE2_DATA_GRANULARITY;
+    if(valueBits==UTRIE2_16_VALUE_BITS) {
+        tempTrie.highValueIndex+=tempTrie.indexLength;
+    }
+
+    /* calculate the actual length */
+    actualLength=(int32_t)sizeof(UTrie2Header)+tempTrie.indexLength*2;
+    if(valueBits==UTRIE2_16_VALUE_BITS) {
+        actualLength+=tempTrie.dataLength*2;
+    } else {
+        actualLength+=tempTrie.dataLength*4;
+    }
+    if(length<actualLength) {
+        *pErrorCode=U_INVALID_FORMAT_ERROR;  /* not enough bytes */
+        return 0;
+    }
+
+    /* allocate the trie */
+    trie=(UTrie2 *)uprv_malloc(sizeof(UTrie2));
+    if(trie==NULL) {
+        *pErrorCode=U_MEMORY_ALLOCATION_ERROR;
+        return 0;
+    }
+    uprv_memcpy(trie, &tempTrie, sizeof(tempTrie));
+    trie->memory=(uint32_t *)data;
+    trie->length=actualLength;
+    trie->isMemoryOwned=FALSE;
+
+    /* set the pointers to its index and data arrays */
+    p16=(const uint16_t *)(header+1);
+    trie->index=p16;
+    p16+=trie->indexLength;
+
+    /* get the data */
+    switch(valueBits) {
+    case UTRIE2_16_VALUE_BITS:
+        trie->data16=p16;
+        trie->data32=NULL;
+        trie->initialValue=trie->index[trie->dataNullOffset];
+        trie->errorValue=trie->data16[UTRIE2_BAD_UTF8_DATA_OFFSET];
+        break;
+    case UTRIE2_32_VALUE_BITS:
+        trie->data16=NULL;
+        trie->data32=(const uint32_t *)p16;
+        trie->initialValue=trie->data32[trie->dataNullOffset];
+        trie->errorValue=trie->data32[UTRIE2_BAD_UTF8_DATA_OFFSET];
+        break;
+    default:
+        *pErrorCode=U_INVALID_FORMAT_ERROR;
+        return 0;
+    }
+
+    if(pActualLength!=NULL) {
+        *pActualLength=actualLength;
+    }
+    return trie;
+}
+
+U_CAPI UTrie2 * U_EXPORT2
+utrie2_openDummy(UTrie2ValueBits valueBits,
+                 uint32_t initialValue, uint32_t errorValue,
+                 UErrorCode *pErrorCode) {
+    UTrie2 *trie;
+    UTrie2Header *header;
+    uint32_t *p;
+    uint16_t *dest16;
+    int32_t indexLength, dataLength, length, i;
+    int32_t dataMove;  /* >0 if the data is moved to the end of the index array */
+
+    if(U_FAILURE(*pErrorCode)) {
+        return 0;
+    }
+
+    if(valueBits<0 || UTRIE2_COUNT_VALUE_BITS<=valueBits) {
+        *pErrorCode=U_ILLEGAL_ARGUMENT_ERROR;
+        return 0;
+    }
+
+    /* calculate the total length of the dummy trie data */
+    indexLength=UTRIE2_INDEX_1_OFFSET;
+    dataLength=UTRIE2_DATA_START_OFFSET+UTRIE2_DATA_GRANULARITY;
+    length=(int32_t)sizeof(UTrie2Header)+indexLength*2;
+    if(valueBits==UTRIE2_16_VALUE_BITS) {
+        length+=dataLength*2;
+    } else {
+        length+=dataLength*4;
+    }
+
+    /* allocate the trie */
+    trie=(UTrie2 *)uprv_malloc(sizeof(UTrie2));
+    if(trie==NULL) {
+        *pErrorCode=U_MEMORY_ALLOCATION_ERROR;
+        return 0;
+    }
+    uprv_memset(trie, 0, sizeof(UTrie2));
+    trie->memory=uprv_malloc(length);
+    if(trie->memory==NULL) {
+        uprv_free(trie);
+        *pErrorCode=U_MEMORY_ALLOCATION_ERROR;
+        return 0;
+    }
+    trie->length=length;
+    trie->isMemoryOwned=TRUE;
+
+    /* set the UTrie2 fields */
+    if(valueBits==UTRIE2_16_VALUE_BITS) {
+        dataMove=indexLength;
+    } else {
+        dataMove=0;
+    }
+
+    trie->indexLength=indexLength;
+    trie->dataLength=dataLength;
+    trie->index2NullOffset=UTRIE2_INDEX_2_OFFSET;
+    trie->dataNullOffset=(uint16_t)dataMove;
+    trie->initialValue=initialValue;
+    trie->errorValue=errorValue;
+    trie->highStart=0;
+    trie->highValueIndex=dataMove+UTRIE2_DATA_START_OFFSET;
+
+    /* set the header fields */
+    header=(UTrie2Header *)trie->memory;
+
+    header->signature=UTRIE2_SIG; /* "Tri2" */
+    header->options=(uint16_t)valueBits;
+
+    header->indexLength=(uint16_t)indexLength;
+    header->shiftedDataLength=(uint16_t)(dataLength>>UTRIE2_INDEX_SHIFT);
+    header->index2NullOffset=(uint16_t)UTRIE2_INDEX_2_OFFSET;
+    header->dataNullOffset=(uint16_t)dataMove;
+    header->shiftedHighStart=0;
+
+    /* fill the index and data arrays */
+    dest16=(uint16_t *)(header+1);
+    trie->index=dest16;
+
+    /* write the index-2 array values shifted right by UTRIE2_INDEX_SHIFT */
+    for(i=0; i<UTRIE2_INDEX_2_BMP_LENGTH; ++i) {
+        *dest16++=(uint16_t)(dataMove>>UTRIE2_INDEX_SHIFT);  /* null data block */
+    }
+
+    /* write UTF-8 2-byte index-2 values, not right-shifted */
+    for(i=0; i<(0xc2-0xc0); ++i) {                                  /* C0..C1 */
+        *dest16++=(uint16_t)(dataMove+UTRIE2_BAD_UTF8_DATA_OFFSET);
+    }
+    for(; i<(0xe0-0xc0); ++i) {                                     /* C2..DF */
+        *dest16++=(uint16_t)dataMove;
+    }
+
+    /* write the 16/32-bit data array */
+    switch(valueBits) {
+    case UTRIE2_16_VALUE_BITS:
+        /* write 16-bit data values */
+        trie->data16=dest16;
+        trie->data32=NULL;
+        for(i=0; i<0x80; ++i) {
+            *dest16++=(uint16_t)initialValue;
+        }
+        for(; i<0xc0; ++i) {
+            *dest16++=(uint16_t)errorValue;
+        }
+        /* highValue and reserved values */
+        for(i=0; i<UTRIE2_DATA_GRANULARITY; ++i) {
+            *dest16++=(uint16_t)initialValue;
+        }
+        break;
+    case UTRIE2_32_VALUE_BITS:
+        /* write 32-bit data values */
+        p=(uint32_t *)dest16;
+        trie->data16=NULL;
+        trie->data32=p;
+        for(i=0; i<0x80; ++i) {
+            *p++=initialValue;
+        }
+        for(; i<0xc0; ++i) {
+            *p++=errorValue;
+        }
+        /* highValue and reserved values */
+        for(i=0; i<UTRIE2_DATA_GRANULARITY; ++i) {
+            *p++=initialValue;
+        }
+        break;
+    default:
+        *pErrorCode=U_ILLEGAL_ARGUMENT_ERROR;
+        return 0;
+    }
+
+    return trie;
+}
+
+U_CAPI void U_EXPORT2
+utrie2_close(UTrie2 *trie) {
+    if(trie!=NULL) {
+        if(trie->isMemoryOwned) {
+            uprv_free(trie->memory);
+        }
+        if(trie->newTrie!=NULL) {
+            uprv_free(trie->newTrie->data);
+            uprv_free(trie->newTrie);
+        }
+        uprv_free(trie);
+    }
+}
+
+U_CAPI int32_t U_EXPORT2
+utrie2_getVersion(const void *data, int32_t length, UBool anyEndianOk) {
+    uint32_t signature;
+    if(length<16 || data==NULL || (U_POINTER_MASK_LSB(data, 3)!=0)) {
+        return 0;
+    }
+    signature=*(const uint32_t *)data;
+    if(signature==UTRIE2_SIG) {
+        return 2;
+    }
+    if(anyEndianOk && signature==UTRIE2_OE_SIG) {
+        return 2;
+    }
+    if(signature==UTRIE_SIG) {
+        return 1;
+    }
+    if(anyEndianOk && signature==UTRIE_OE_SIG) {
+        return 1;
+    }
+    return 0;
+}
+
+U_CAPI UBool U_EXPORT2
+utrie2_isFrozen(const UTrie2 *trie) {
+    return (UBool)(trie->newTrie==NULL);
+}
+
+U_CAPI int32_t U_EXPORT2
+utrie2_serialize(const UTrie2 *trie,
+                 void *data, int32_t capacity,
+                 UErrorCode *pErrorCode) {
+    /* argument check */
+    if(U_FAILURE(*pErrorCode)) {
+        return 0;
+    }
+
+    if( trie==NULL || trie->memory==NULL || trie->newTrie!=NULL ||
+        capacity<0 || (capacity>0 && (data==NULL || (U_POINTER_MASK_LSB(data, 3)!=0)))
+    ) {
+        *pErrorCode=U_ILLEGAL_ARGUMENT_ERROR;
+        return 0;
+    }
+
+    if(capacity>=trie->length) {
+        uprv_memcpy(data, trie->memory, trie->length);
+    } else {
+        *pErrorCode=U_BUFFER_OVERFLOW_ERROR;
+    }
+    return trie->length;
+}
+
+U_CAPI int32_t U_EXPORT2
+utrie2_swap(const UDataSwapper *ds,
+            const void *inData, int32_t length, void *outData,
+            UErrorCode *pErrorCode) {
+    const UTrie2Header *inTrie;
+    UTrie2Header trie;
+    int32_t dataLength, size;
+    UTrie2ValueBits valueBits;
+
+    if(U_FAILURE(*pErrorCode)) {
+        return 0;
+    }
+    if(ds==NULL || inData==NULL || (length>=0 && outData==NULL)) {
+        *pErrorCode=U_ILLEGAL_ARGUMENT_ERROR;
+        return 0;
+    }
+
+    /* setup and swapping */
+    if(length>=0 && length<(int32_t)sizeof(UTrie2Header)) {
+        *pErrorCode=U_INDEX_OUTOFBOUNDS_ERROR;
+        return 0;
+    }
+
+    inTrie=(const UTrie2Header *)inData;
+    trie.signature=ds->readUInt32(inTrie->signature);
+    trie.options=ds->readUInt16(inTrie->options);
+    trie.indexLength=ds->readUInt16(inTrie->indexLength);
+    trie.shiftedDataLength=ds->readUInt16(inTrie->shiftedDataLength);
+
+    valueBits=(UTrie2ValueBits)(trie.options&UTRIE2_OPTIONS_VALUE_BITS_MASK);
+    dataLength=(int32_t)trie.shiftedDataLength<<UTRIE2_INDEX_SHIFT;
+
+    if( trie.signature!=UTRIE2_SIG ||
+        valueBits<0 || UTRIE2_COUNT_VALUE_BITS<=valueBits ||
+        trie.indexLength<UTRIE2_INDEX_1_OFFSET ||
+        dataLength<UTRIE2_DATA_START_OFFSET
+    ) {
+        *pErrorCode=U_INVALID_FORMAT_ERROR; /* not a UTrie */
+        return 0;
+    }
+
+    size=sizeof(UTrie2Header)+trie.indexLength*2;
+    switch(valueBits) {
+    case UTRIE2_16_VALUE_BITS:
+        size+=dataLength*2;
+        break;
+    case UTRIE2_32_VALUE_BITS:
+        size+=dataLength*4;
+        break;
+    default:
+        *pErrorCode=U_INVALID_FORMAT_ERROR;
+        return 0;
+    }
+
+    if(length>=0) {
+        UTrie2Header *outTrie;
+
+        if(length<size) {
+            *pErrorCode=U_INDEX_OUTOFBOUNDS_ERROR;
+            return 0;
+        }
+
+        outTrie=(UTrie2Header *)outData;
+
+        /* swap the header */
+        ds->swapArray32(ds, &inTrie->signature, 4, &outTrie->signature, pErrorCode);
+        ds->swapArray16(ds, &inTrie->options, 12, &outTrie->options, pErrorCode);
+
+        /* swap the index and the data */
+        switch(valueBits) {
+        case UTRIE2_16_VALUE_BITS:
+            ds->swapArray16(ds, inTrie+1, (trie.indexLength+dataLength)*2, outTrie+1, pErrorCode);
+            break;
+        case UTRIE2_32_VALUE_BITS:
+            ds->swapArray16(ds, inTrie+1, trie.indexLength*2, outTrie+1, pErrorCode);
+            ds->swapArray32(ds, (const uint16_t *)(inTrie+1)+trie.indexLength, dataLength*4,
+                                     (uint16_t *)(outTrie+1)+trie.indexLength, pErrorCode);
+            break;
+        default:
+            *pErrorCode=U_INVALID_FORMAT_ERROR;
+            return 0;
+        }
+    }
+
+    return size;
+}
+
+// utrie2_swapAnyVersion() should be defined here but lives in utrie2_builder.c
+// to avoid a dependency from utrie2.cpp on utrie.c.
+
+/* enumeration -------------------------------------------------------------- */
+
+#define MIN_VALUE(a, b) ((a)<(b) ? (a) : (b))
+
+/* default UTrie2EnumValue() returns the input value itself */
+static uint32_t U_CALLCONV
+enumSameValue(const void * /*context*/, uint32_t value) {
+    return value;
+}
+
+/**
+ * Enumerate all ranges of code points with the same relevant values.
+ * The values are transformed from the raw trie entries by the enumValue function.
+ *
+ * Currently requires start<limit and both start and limit must be multiples
+ * of UTRIE2_DATA_BLOCK_LENGTH.
+ *
+ * Optimizations:
+ * - Skip a whole block if we know that it is filled with a single value,
+ *   and it is the same as we visited just before.
+ * - Handle the null block specially because we know a priori that it is filled
+ *   with a single value.
+ */
+static void
+enumEitherTrie(const UTrie2 *trie,
+               UChar32 start, UChar32 limit,
+               UTrie2EnumValue *enumValue, UTrie2EnumRange *enumRange, const void *context) {
+    const uint32_t *data32;
+    const uint16_t *idx;
+
+    uint32_t value, prevValue, initialValue;
+    UChar32 c, prev, highStart;
+    int32_t j, i2Block, prevI2Block, index2NullOffset, block, prevBlock, nullBlock;
+
+    if(enumRange==NULL) {
+        return;
+    }
+    if(enumValue==NULL) {
+        enumValue=enumSameValue;
+    }
+
+    if(trie->newTrie==NULL) {
+        /* frozen trie */
+        idx=trie->index;
+        U_ASSERT(idx!=NULL); /* the following code assumes trie->newTrie is not NULL when idx is NULL */
+        data32=trie->data32;
+
+        index2NullOffset=trie->index2NullOffset;
+        nullBlock=trie->dataNullOffset;
+    } else {
+        /* unfrozen, mutable trie */
+        idx=NULL;
+        data32=trie->newTrie->data;
+        U_ASSERT(data32!=NULL); /* the following code assumes idx is not NULL when data32 is NULL */
+
+        index2NullOffset=trie->newTrie->index2NullOffset;
+        nullBlock=trie->newTrie->dataNullOffset;
+    }
+
+    highStart=trie->highStart;
+
+    /* get the enumeration value that corresponds to an initial-value trie data entry */
+    initialValue=enumValue(context, trie->initialValue);
+
+    /* set variables for previous range */
+    prevI2Block=-1;
+    prevBlock=-1;
+    prev=start;
+    prevValue=0;
+
+    /* enumerate index-2 blocks */
+    for(c=start; c<limit && c<highStart;) {
+        /* Code point limit for iterating inside this i2Block. */
+        UChar32 tempLimit=c+UTRIE2_CP_PER_INDEX_1_ENTRY;
+        if(limit<tempLimit) {
+            tempLimit=limit;
+        }
+        if(c<=0xffff) {
+            if(!U_IS_SURROGATE(c)) {
+                i2Block=c>>UTRIE2_SHIFT_2;
+            } else if(U_IS_SURROGATE_LEAD(c)) {
+                /*
+                 * Enumerate values for lead surrogate code points, not code units:
+                 * This special block has half the normal length.
+                 */
+                i2Block=UTRIE2_LSCP_INDEX_2_OFFSET;
+                tempLimit=MIN_VALUE(0xdc00, limit);
+            } else {
+                /*
+                 * Switch back to the normal part of the index-2 table.
+                 * Enumerate the second half of the surrogates block.
+                 */
+                i2Block=0xd800>>UTRIE2_SHIFT_2;
+                tempLimit=MIN_VALUE(0xe000, limit);
+            }
+        } else {
+            /* supplementary code points */
+            if(idx!=NULL) {
+                i2Block=idx[(UTRIE2_INDEX_1_OFFSET-UTRIE2_OMITTED_BMP_INDEX_1_LENGTH)+
+                              (c>>UTRIE2_SHIFT_1)];
+            } else {
+                i2Block=trie->newTrie->index1[c>>UTRIE2_SHIFT_1];
+            }
+            if(i2Block==prevI2Block && (c-prev)>=UTRIE2_CP_PER_INDEX_1_ENTRY) {
+                /*
+                 * The index-2 block is the same as the previous one, and filled with prevValue.
+                 * Only possible for supplementary code points because the linear-BMP index-2
+                 * table creates unique i2Block values.
+                 */
+                c+=UTRIE2_CP_PER_INDEX_1_ENTRY;
+                continue;
+            }
+        }
+        prevI2Block=i2Block;
+        if(i2Block==index2NullOffset) {
+            /* this is the null index-2 block */
+            if(prevValue!=initialValue) {
+                if(prev<c && !enumRange(context, prev, c-1, prevValue)) {
+                    return;
+                }
+                prevBlock=nullBlock;
+                prev=c;
+                prevValue=initialValue;
+            }
+            c+=UTRIE2_CP_PER_INDEX_1_ENTRY;
+        } else {
+            /* enumerate data blocks for one index-2 block */
+            int32_t i2, i2Limit;
+            i2=(c>>UTRIE2_SHIFT_2)&UTRIE2_INDEX_2_MASK;
+            if((c>>UTRIE2_SHIFT_1)==(tempLimit>>UTRIE2_SHIFT_1)) {
+                i2Limit=(tempLimit>>UTRIE2_SHIFT_2)&UTRIE2_INDEX_2_MASK;
+            } else {
+                i2Limit=UTRIE2_INDEX_2_BLOCK_LENGTH;
+            }
+            for(; i2<i2Limit; ++i2) {
+                if(idx!=NULL) {
+                    block=(int32_t)idx[i2Block+i2]<<UTRIE2_INDEX_SHIFT;
+                } else {
+                    block=trie->newTrie->index2[i2Block+i2];
+                }
+                if(block==prevBlock && (c-prev)>=UTRIE2_DATA_BLOCK_LENGTH) {
+                    /* the block is the same as the previous one, and filled with prevValue */
+                    c+=UTRIE2_DATA_BLOCK_LENGTH;
+                    continue;
+                }
+                prevBlock=block;
+                if(block==nullBlock) {
+                    /* this is the null data block */
+                    if(prevValue!=initialValue) {
+                        if(prev<c && !enumRange(context, prev, c-1, prevValue)) {
+                            return;
+                        }
+                        prev=c;
+                        prevValue=initialValue;
+                    }
+                    c+=UTRIE2_DATA_BLOCK_LENGTH;
+                } else {
+                    for(j=0; j<UTRIE2_DATA_BLOCK_LENGTH; ++j) {
+                        value=enumValue(context, data32!=NULL ? data32[block+j] : idx[block+j]);
+                        if(value!=prevValue) {
+                            if(prev<c && !enumRange(context, prev, c-1, prevValue)) {
+                                return;
+                            }
+                            prev=c;
+                            prevValue=value;
+                        }
+                        ++c;
+                    }
+                }
+            }
+        }
+    }
+
+    if(c>limit) {
+        c=limit;  /* could be higher if in the index2NullOffset */
+    } else if(c<limit) {
+        /* c==highStart<limit */
+        uint32_t highValue;
+        if(idx!=NULL) {
+            highValue=
+                data32!=NULL ?
+                    data32[trie->highValueIndex] :
+                    idx[trie->highValueIndex];
+        } else {
+            highValue=trie->newTrie->data[trie->newTrie->dataLength-UTRIE2_DATA_GRANULARITY];
+        }
+        value=enumValue(context, highValue);
+        if(value!=prevValue) {
+            if(prev<c && !enumRange(context, prev, c-1, prevValue)) {
+                return;
+            }
+            prev=c;
+            prevValue=value;
+        }
+        c=limit;
+    }
+
+    /* deliver last range */
+    enumRange(context, prev, c-1, prevValue);
+}
+
+U_CAPI void U_EXPORT2
+utrie2_enum(const UTrie2 *trie,
+            UTrie2EnumValue *enumValue, UTrie2EnumRange *enumRange, const void *context) {
+    enumEitherTrie(trie, 0, 0x110000, enumValue, enumRange, context);
+}
+
+U_CAPI void U_EXPORT2
+utrie2_enumForLeadSurrogate(const UTrie2 *trie, UChar32 lead,
+                            UTrie2EnumValue *enumValue, UTrie2EnumRange *enumRange,
+                            const void *context) {
+    if(!U16_IS_LEAD(lead)) {
+        return;
+    }
+    lead=(lead-0xd7c0)<<10;   /* start code point */
+    enumEitherTrie(trie, lead, lead+0x400, enumValue, enumRange, context);
+}
+
+/* C++ convenience wrappers ------------------------------------------------- */
+
+U_NAMESPACE_BEGIN
+
+uint16_t BackwardUTrie2StringIterator::previous16() {
+    codePointLimit=codePointStart;
+    if(start>=codePointStart) {
+        codePoint=U_SENTINEL;
+        return trie->errorValue;
+    }
+    uint16_t result;
+    UTRIE2_U16_PREV16(trie, start, codePointStart, codePoint, result);
+    return result;
+}
+
+uint16_t ForwardUTrie2StringIterator::next16() {
+    codePointStart=codePointLimit;
+    if(codePointLimit==limit) {
+        codePoint=U_SENTINEL;
+        return trie->errorValue;
+    }
+    uint16_t result;
+    UTRIE2_U16_NEXT16(trie, codePointLimit, limit, codePoint, result);
+    return result;
+}
+
+U_NAMESPACE_END
diff --git a/vendor/icu/src/utrie2.h b/vendor/icu/src/utrie2.h
new file mode 100644
index 0000000000..dab99af59b
--- /dev/null
+++ b/vendor/icu/src/utrie2.h
@@ -0,0 +1,986 @@
+// © 2016 and later: Unicode, Inc. and others.
+// License & terms of use: http://www.unicode.org/copyright.html
+/*
+******************************************************************************
+*
+*   Copyright (C) 2001-2014, International Business Machines
+*   Corporation and others.  All Rights Reserved.
+*
+******************************************************************************
+*   file name:  utrie2.h
+*   encoding:   UTF-8
+*   tab size:   8 (not used)
+*   indentation:4
+*
+*   created on: 2008aug16 (starting from a copy of utrie.h)
+*   created by: Markus W. Scherer
+*/
+
+#ifndef __UTRIE2_H__
+#define __UTRIE2_H__
+
+#include <unicode/utypes.h>
+#include <unicode/utf8.h>
+#include "putilimp.h"
+#include "udataswp.h"
+
+U_CDECL_BEGIN
+
+struct UTrie;  /* forward declaration */
+#ifndef __UTRIE_H__
+typedef struct UTrie UTrie;
+#endif
+
+/**
+ * \file
+ *
+ * This is a common implementation of a Unicode trie.
+ * It is a kind of compressed, serializable table of 16- or 32-bit values associated with
+ * Unicode code points (0..0x10ffff). (A map from code points to integers.)
+ *
+ * This is the second common version of a Unicode trie (hence the name UTrie2).
+ * Compared with UTrie version 1:
+ * - Still splitting BMP code points 11:5 bits for index and data table lookups.
+ * - Still separate data for lead surrogate code _units_ vs. code _points_,
+ *   but the lead surrogate code unit values are not required any more
+ *   for data lookup for supplementary code points.
+ * - The "folding" mechanism is removed. In UTrie version 1, this somewhat
+ *   hard-to-explain mechanism was meant to be used for optimized UTF-16
+ *   processing, with application-specific encoding of indexing bits
+ *   in the lead surrogate data for the associated supplementary code points.
+ * - For the last single-value code point range (ending with U+10ffff),
+ *   the starting code point ("highStart") and the value are stored.
+ * - For supplementary code points U+10000..highStart-1 a three-table lookup
+ *   (two index tables and one data table) is used. The first index
+ *   is truncated, omitting both the BMP portion and the high range.
+ * - There is a special small index for 2-byte UTF-8, and the initial data
+ *   entries are designed for fast 1/2-byte UTF-8 lookup.
+ *   Starting with ICU 60, C0 and C1 are not recognized as UTF-8 lead bytes any more at all,
+ *   and the associated 2-byte indexes are unused.
+ */
+
+/**
+ * Trie structure.
+ * Use only with public API macros and functions.
+ */
+struct UTrie2;
+typedef struct UTrie2 UTrie2;
+
+/* Public UTrie2 API functions: read-only access ---------------------------- */
+
+/**
+ * Selectors for the width of a UTrie2 data value.
+ */
+enum UTrie2ValueBits {
+    /** 16 bits per UTrie2 data value. */
+    UTRIE2_16_VALUE_BITS,
+    /** 32 bits per UTrie2 data value. */
+    UTRIE2_32_VALUE_BITS,
+    /** Number of selectors for the width of UTrie2 data values. */
+    UTRIE2_COUNT_VALUE_BITS
+};
+typedef enum UTrie2ValueBits UTrie2ValueBits;
+
+/**
+ * Open a frozen trie from its serialized from, stored in 32-bit-aligned memory.
+ * Inverse of utrie2_serialize().
+ * The memory must remain valid and unchanged as long as the trie is used.
+ * You must utrie2_close() the trie once you are done using it.
+ *
+ * @param valueBits selects the data entry size; results in an
+ *                  U_INVALID_FORMAT_ERROR if it does not match the serialized form
+ * @param data a pointer to 32-bit-aligned memory containing the serialized form of a UTrie2
+ * @param length the number of bytes available at data;
+ *               can be more than necessary
+ * @param pActualLength receives the actual number of bytes at data taken up by the trie data;
+ *                      can be NULL
+ * @param pErrorCode an in/out ICU UErrorCode
+ * @return the unserialized trie
+ *
+ * @see utrie2_open
+ * @see utrie2_serialize
+ */
+U_CAPI UTrie2 * U_EXPORT2
+utrie2_openFromSerialized(UTrie2ValueBits valueBits,
+                          const void *data, int32_t length, int32_t *pActualLength,
+                          UErrorCode *pErrorCode);
+
+/**
+ * Open a frozen, empty "dummy" trie.
+ * A dummy trie is an empty trie, used when a real data trie cannot
+ * be loaded. Equivalent to calling utrie2_open() and utrie2_freeze(),
+ * but without internally creating and compacting/serializing the
+ * builder data structure.
+ *
+ * The trie always returns the initialValue,
+ * or the errorValue for out-of-range code points and illegal UTF-8.
+ *
+ * You must utrie2_close() the trie once you are done using it.
+ *
+ * @param valueBits selects the data entry size
+ * @param initialValue the initial value that is set for all code points
+ * @param errorValue the value for out-of-range code points and illegal UTF-8
+ * @param pErrorCode an in/out ICU UErrorCode
+ * @return the dummy trie
+ *
+ * @see utrie2_openFromSerialized
+ * @see utrie2_open
+ */
+U_CAPI UTrie2 * U_EXPORT2
+utrie2_openDummy(UTrie2ValueBits valueBits,
+                 uint32_t initialValue, uint32_t errorValue,
+                 UErrorCode *pErrorCode);
+
+/**
+ * Get a value from a code point as stored in the trie.
+ * Easier to use than UTRIE2_GET16() and UTRIE2_GET32() but slower.
+ * Easier to use because, unlike the macros, this function works on all UTrie2
+ * objects, frozen or not, holding 16-bit or 32-bit data values.
+ *
+ * @param trie the trie
+ * @param c the code point
+ * @return the value
+ */
+U_CAPI uint32_t U_EXPORT2
+utrie2_get32(const UTrie2 *trie, UChar32 c);
+
+/* enumeration callback types */
+
+/**
+ * Callback from utrie2_enum(), extracts a uint32_t value from a
+ * trie value. This value will be passed on to the UTrie2EnumRange function.
+ *
+ * @param context an opaque pointer, as passed into utrie2_enum()
+ * @param value a value from the trie
+ * @return the value that is to be passed on to the UTrie2EnumRange function
+ */
+typedef uint32_t U_CALLCONV
+UTrie2EnumValue(const void *context, uint32_t value);
+
+/**
+ * Callback from utrie2_enum(), is called for each contiguous range
+ * of code points with the same value as retrieved from the trie and
+ * transformed by the UTrie2EnumValue function.
+ *
+ * The callback function can stop the enumeration by returning FALSE.
+ *
+ * @param context an opaque pointer, as passed into utrie2_enum()
+ * @param start the first code point in a contiguous range with value
+ * @param end the last code point in a contiguous range with value (inclusive)
+ * @param value the value that is set for all code points in [start..end]
+ * @return FALSE to stop the enumeration
+ */
+typedef UBool U_CALLCONV
+UTrie2EnumRange(const void *context, UChar32 start, UChar32 end, uint32_t value);
+
+/**
+ * Enumerate efficiently all values in a trie.
+ * Do not modify the trie during the enumeration.
+ *
+ * For each entry in the trie, the value to be delivered is passed through
+ * the UTrie2EnumValue function.
+ * The value is unchanged if that function pointer is NULL.
+ *
+ * For each contiguous range of code points with a given (transformed) value,
+ * the UTrie2EnumRange function is called.
+ *
+ * @param trie a pointer to the trie
+ * @param enumValue a pointer to a function that may transform the trie entry value,
+ *                  or NULL if the values from the trie are to be used directly
+ * @param enumRange a pointer to a function that is called for each contiguous range
+ *                  of code points with the same (transformed) value
+ * @param context an opaque pointer that is passed on to the callback functions
+ */
+U_CAPI void U_EXPORT2
+utrie2_enum(const UTrie2 *trie,
+            UTrie2EnumValue *enumValue, UTrie2EnumRange *enumRange, const void *context);
+
+/* Building a trie ---------------------------------------------------------- */
+
+/**
+ * Open an empty, writable trie. At build time, 32-bit data values are used.
+ * utrie2_freeze() takes a valueBits parameter
+ * which determines the data value width in the serialized and frozen forms.
+ * You must utrie2_close() the trie once you are done using it.
+ *
+ * @param initialValue the initial value that is set for all code points
+ * @param errorValue the value for out-of-range code points and illegal UTF-8
+ * @param pErrorCode an in/out ICU UErrorCode
+ * @return a pointer to the allocated and initialized new trie
+ */
+U_CAPI UTrie2 * U_EXPORT2
+utrie2_open(uint32_t initialValue, uint32_t errorValue, UErrorCode *pErrorCode);
+
+/**
+ * Clone a trie.
+ * You must utrie2_close() the clone once you are done using it.
+ *
+ * @param other the trie to clone
+ * @param pErrorCode an in/out ICU UErrorCode
+ * @return a pointer to the new trie clone
+ */
+U_CAPI UTrie2 * U_EXPORT2
+utrie2_clone(const UTrie2 *other, UErrorCode *pErrorCode);
+
+/**
+ * Clone a trie. The clone will be mutable/writable even if the other trie
+ * is frozen. (See utrie2_freeze().)
+ * You must utrie2_close() the clone once you are done using it.
+ *
+ * @param other the trie to clone
+ * @param pErrorCode an in/out ICU UErrorCode
+ * @return a pointer to the new trie clone
+ */
+U_CAPI UTrie2 * U_EXPORT2
+utrie2_cloneAsThawed(const UTrie2 *other, UErrorCode *pErrorCode);
+
+/**
+ * Close a trie and release associated memory.
+ *
+ * @param trie the trie
+ */
+U_CAPI void U_EXPORT2
+utrie2_close(UTrie2 *trie);
+
+/**
+ * Set a value for a code point.
+ *
+ * @param trie the unfrozen trie
+ * @param c the code point
+ * @param value the value
+ * @param pErrorCode an in/out ICU UErrorCode; among other possible error codes:
+ * - U_NO_WRITE_PERMISSION if the trie is frozen
+ */
+U_CAPI void U_EXPORT2
+utrie2_set32(UTrie2 *trie, UChar32 c, uint32_t value, UErrorCode *pErrorCode);
+
+/**
+ * Set a value in a range of code points [start..end].
+ * All code points c with start<=c<=end will get the value if
+ * overwrite is TRUE or if the old value is the initial value.
+ *
+ * @param trie the unfrozen trie
+ * @param start the first code point to get the value
+ * @param end the last code point to get the value (inclusive)
+ * @param value the value
+ * @param overwrite flag for whether old non-initial values are to be overwritten
+ * @param pErrorCode an in/out ICU UErrorCode; among other possible error codes:
+ * - U_NO_WRITE_PERMISSION if the trie is frozen
+ */
+U_CAPI void U_EXPORT2
+utrie2_setRange32(UTrie2 *trie,
+                  UChar32 start, UChar32 end,
+                  uint32_t value, UBool overwrite,
+                  UErrorCode *pErrorCode);
+
+/**
+ * Freeze a trie. Make it immutable (read-only) and compact it,
+ * ready for serialization and for use with fast macros.
+ * Functions to set values will fail after serializing.
+ *
+ * A trie can be frozen only once. If this function is called again with different
+ * valueBits then it will set a U_ILLEGAL_ARGUMENT_ERROR.
+ *
+ * @param trie the trie
+ * @param valueBits selects the data entry size; if smaller than 32 bits, then
+ *                  the values stored in the trie will be truncated
+ * @param pErrorCode an in/out ICU UErrorCode; among other possible error codes:
+ * - U_INDEX_OUTOFBOUNDS_ERROR if the compacted index or data arrays are too long
+ *                             for serialization
+ *                             (the trie will be immutable and usable,
+ *                             but not frozen and not usable with the fast macros)
+ *
+ * @see utrie2_cloneAsThawed
+ */
+U_CAPI void U_EXPORT2
+utrie2_freeze(UTrie2 *trie, UTrie2ValueBits valueBits, UErrorCode *pErrorCode);
+
+/**
+ * Test if the trie is frozen. (See utrie2_freeze().)
+ *
+ * @param trie the trie
+ * @return TRUE if the trie is frozen, that is, immutable, ready for serialization
+ *         and for use with fast macros
+ */
+U_CAPI UBool U_EXPORT2
+utrie2_isFrozen(const UTrie2 *trie);
+
+/**
+ * Serialize a frozen trie into 32-bit aligned memory.
+ * If the trie is not frozen, then the function returns with a U_ILLEGAL_ARGUMENT_ERROR.
+ * A trie can be serialized multiple times.
+ *
+ * @param trie the frozen trie
+ * @param data a pointer to 32-bit-aligned memory to be filled with the trie data,
+ *             can be NULL if capacity==0
+ * @param capacity the number of bytes available at data,
+ *                 or 0 for preflighting
+ * @param pErrorCode an in/out ICU UErrorCode; among other possible error codes:
+ * - U_BUFFER_OVERFLOW_ERROR if the data storage block is too small for serialization
+ * - U_ILLEGAL_ARGUMENT_ERROR if the trie is not frozen or the data and capacity
+ *                            parameters are bad
+ * @return the number of bytes written or needed for the trie
+ *
+ * @see utrie2_openFromSerialized()
+ */
+U_CAPI int32_t U_EXPORT2
+utrie2_serialize(const UTrie2 *trie,
+                 void *data, int32_t capacity,
+                 UErrorCode *pErrorCode);
+
+/* Public UTrie2 API: miscellaneous functions ------------------------------- */
+
+/**
+ * Get the UTrie version from 32-bit-aligned memory containing the serialized form
+ * of either a UTrie (version 1) or a UTrie2 (version 2).
+ *
+ * @param data a pointer to 32-bit-aligned memory containing the serialized form
+ *             of a UTrie, version 1 or 2
+ * @param length the number of bytes available at data;
+ *               can be more than necessary (see return value)
+ * @param anyEndianOk If FALSE, only platform-endian serialized forms are recognized.
+ *                    If TRUE, opposite-endian serialized forms are recognized as well.
+ * @return the UTrie version of the serialized form, or 0 if it is not
+ *         recognized as a serialized UTrie
+ */
+U_CAPI int32_t U_EXPORT2
+utrie2_getVersion(const void *data, int32_t length, UBool anyEndianOk);
+
+/**
+ * Swap a serialized UTrie2.
+ * @internal
+ */
+U_CAPI int32_t U_EXPORT2
+utrie2_swap(const UDataSwapper *ds,
+            const void *inData, int32_t length, void *outData,
+            UErrorCode *pErrorCode);
+
+/**
+ * Swap a serialized UTrie or UTrie2.
+ * @internal
+ */
+U_CAPI int32_t U_EXPORT2
+utrie2_swapAnyVersion(const UDataSwapper *ds,
+                      const void *inData, int32_t length, void *outData,
+                      UErrorCode *pErrorCode);
+
+/**
+ * Build a UTrie2 (version 2) from a UTrie (version 1).
+ * Enumerates all values in the UTrie and builds a UTrie2 with the same values.
+ * The resulting UTrie2 will be frozen.
+ *
+ * @param trie1 the runtime UTrie structure to be enumerated
+ * @param errorValue the value for out-of-range code points and illegal UTF-8
+ * @param pErrorCode an in/out ICU UErrorCode
+ * @return The frozen UTrie2 with the same values as the UTrie.
+ */
+U_CAPI UTrie2 * U_EXPORT2
+utrie2_fromUTrie(const UTrie *trie1, uint32_t errorValue, UErrorCode *pErrorCode);
+
+/* Public UTrie2 API macros ------------------------------------------------- */
+
+/*
+ * These macros provide fast data lookup from a frozen trie.
+ * They will crash when used on an unfrozen trie.
+ */
+
+/**
+ * Return a 16-bit trie value from a code point, with range checking.
+ * Returns trie->errorValue if c is not in the range 0..U+10ffff.
+ *
+ * @param trie (const UTrie2 *, in) a frozen trie
+ * @param c (UChar32, in) the input code point
+ * @return (uint16_t) The code point's trie value.
+ */
+#define UTRIE2_GET16(trie, c) _UTRIE2_GET((trie), index, (trie)->indexLength, (c))
+
+/**
+ * Return a 32-bit trie value from a code point, with range checking.
+ * Returns trie->errorValue if c is not in the range 0..U+10ffff.
+ *
+ * @param trie (const UTrie2 *, in) a frozen trie
+ * @param c (UChar32, in) the input code point
+ * @return (uint32_t) The code point's trie value.
+ */
+#define UTRIE2_GET32(trie, c) _UTRIE2_GET((trie), data32, 0, (c))
+
+/**
+ * UTF-16: Get the next code point (UChar32 c, out), post-increment src,
+ * and get a 16-bit value from the trie.
+ *
+ * @param trie (const UTrie2 *, in) a frozen trie
+ * @param src (const UChar *, in/out) the source text pointer
+ * @param limit (const UChar *, in) the limit pointer for the text, or NULL if NUL-terminated
+ * @param c (UChar32, out) variable for the code point
+ * @param result (uint16_t, out) uint16_t variable for the trie lookup result
+ */
+#define UTRIE2_U16_NEXT16(trie, src, limit, c, result) _UTRIE2_U16_NEXT(trie, index, src, limit, c, result)
+
+/**
+ * UTF-16: Get the next code point (UChar32 c, out), post-increment src,
+ * and get a 32-bit value from the trie.
+ *
+ * @param trie (const UTrie2 *, in) a frozen trie
+ * @param src (const UChar *, in/out) the source text pointer
+ * @param limit (const UChar *, in) the limit pointer for the text, or NULL if NUL-terminated
+ * @param c (UChar32, out) variable for the code point
+ * @param result (uint32_t, out) uint32_t variable for the trie lookup result
+ */
+#define UTRIE2_U16_NEXT32(trie, src, limit, c, result) _UTRIE2_U16_NEXT(trie, data32, src, limit, c, result)
+
+/**
+ * UTF-16: Get the previous code point (UChar32 c, out), pre-decrement src,
+ * and get a 16-bit value from the trie.
+ *
+ * @param trie (const UTrie2 *, in) a frozen trie
+ * @param start (const UChar *, in) the start pointer for the text
+ * @param src (const UChar *, in/out) the source text pointer
+ * @param c (UChar32, out) variable for the code point
+ * @param result (uint16_t, out) uint16_t variable for the trie lookup result
+ */
+#define UTRIE2_U16_PREV16(trie, start, src, c, result) _UTRIE2_U16_PREV(trie, index, start, src, c, result)
+
+/**
+ * UTF-16: Get the previous code point (UChar32 c, out), pre-decrement src,
+ * and get a 32-bit value from the trie.
+ *
+ * @param trie (const UTrie2 *, in) a frozen trie
+ * @param start (const UChar *, in) the start pointer for the text
+ * @param src (const UChar *, in/out) the source text pointer
+ * @param c (UChar32, out) variable for the code point
+ * @param result (uint32_t, out) uint32_t variable for the trie lookup result
+ */
+#define UTRIE2_U16_PREV32(trie, start, src, c, result) _UTRIE2_U16_PREV(trie, data32, start, src, c, result)
+
+/**
+ * UTF-8: Post-increment src and get a 16-bit value from the trie.
+ *
+ * @param trie (const UTrie2 *, in) a frozen trie
+ * @param src (const char *, in/out) the source text pointer
+ * @param limit (const char *, in) the limit pointer for the text (must not be NULL)
+ * @param result (uint16_t, out) uint16_t variable for the trie lookup result
+ */
+#define UTRIE2_U8_NEXT16(trie, src, limit, result)\
+    _UTRIE2_U8_NEXT(trie, data16, index, src, limit, result)
+
+/**
+ * UTF-8: Post-increment src and get a 32-bit value from the trie.
+ *
+ * @param trie (const UTrie2 *, in) a frozen trie
+ * @param src (const char *, in/out) the source text pointer
+ * @param limit (const char *, in) the limit pointer for the text (must not be NULL)
+ * @param result (uint16_t, out) uint32_t variable for the trie lookup result
+ */
+#define UTRIE2_U8_NEXT32(trie, src, limit, result) \
+    _UTRIE2_U8_NEXT(trie, data32, data32, src, limit, result)
+
+/**
+ * UTF-8: Pre-decrement src and get a 16-bit value from the trie.
+ *
+ * @param trie (const UTrie2 *, in) a frozen trie
+ * @param start (const char *, in) the start pointer for the text
+ * @param src (const char *, in/out) the source text pointer
+ * @param result (uint16_t, out) uint16_t variable for the trie lookup result
+ */
+#define UTRIE2_U8_PREV16(trie, start, src, result) \
+    _UTRIE2_U8_PREV(trie, data16, index, start, src, result)
+
+/**
+ * UTF-8: Pre-decrement src and get a 32-bit value from the trie.
+ *
+ * @param trie (const UTrie2 *, in) a frozen trie
+ * @param start (const char *, in) the start pointer for the text
+ * @param src (const char *, in/out) the source text pointer
+ * @param result (uint16_t, out) uint32_t variable for the trie lookup result
+ */
+#define UTRIE2_U8_PREV32(trie, start, src, result) \
+    _UTRIE2_U8_PREV(trie, data32, data32, start, src, result)
+
+/* Public UTrie2 API: optimized UTF-16 access ------------------------------- */
+
+/*
+ * The following functions and macros are used for highly optimized UTF-16
+ * text processing. The UTRIE2_U16_NEXTxy() macros do not depend on these.
+ *
+ * A UTrie2 stores separate values for lead surrogate code _units_ vs. code _points_.
+ * UTF-16 text processing can be optimized by detecting surrogate pairs and
+ * assembling supplementary code points only when there is non-trivial data
+ * available.
+ *
+ * At build-time, use utrie2_enumForLeadSurrogate() to see if there
+ * is non-trivial (non-initialValue) data for any of the supplementary
+ * code points associated with a lead surrogate.
+ * If so, then set a special (application-specific) value for the
+ * lead surrogate code _unit_, with utrie2_set32ForLeadSurrogateCodeUnit().
+ *
+ * At runtime, use UTRIE2_GET16_FROM_U16_SINGLE_LEAD() or
+ * UTRIE2_GET32_FROM_U16_SINGLE_LEAD() per code unit. If there is non-trivial
+ * data and the code unit is a lead surrogate, then check if a trail surrogate
+ * follows. If so, assemble the supplementary code point with
+ * U16_GET_SUPPLEMENTARY() and look up its value with UTRIE2_GET16_FROM_SUPP()
+ * or UTRIE2_GET32_FROM_SUPP(); otherwise reset the lead
+ * surrogate's value or do a code point lookup for it.
+ *
+ * If there is only trivial data for lead and trail surrogates, then processing
+ * can often skip them. For example, in normalization or case mapping
+ * all characters that do not have any mappings are simply copied as is.
+ */
+
+/**
+ * Get a value from a lead surrogate code unit as stored in the trie.
+ *
+ * @param trie the trie
+ * @param c the code unit (U+D800..U+DBFF)
+ * @return the value
+ */
+U_CAPI uint32_t U_EXPORT2
+utrie2_get32FromLeadSurrogateCodeUnit(const UTrie2 *trie, UChar32 c);
+
+/**
+ * Enumerate the trie values for the 1024=0x400 code points
+ * corresponding to a given lead surrogate.
+ * For example, for the lead surrogate U+D87E it will enumerate the values
+ * for [U+2F800..U+2FC00[.
+ * Used by data builder code that sets special lead surrogate code unit values
+ * for optimized UTF-16 string processing.
+ *
+ * Do not modify the trie during the enumeration.
+ *
+ * Except for the limited code point range, this functions just like utrie2_enum():
+ * For each entry in the trie, the value to be delivered is passed through
+ * the UTrie2EnumValue function.
+ * The value is unchanged if that function pointer is NULL.
+ *
+ * For each contiguous range of code points with a given (transformed) value,
+ * the UTrie2EnumRange function is called.
+ *
+ * @param trie a pointer to the trie
+ * @param enumValue a pointer to a function that may transform the trie entry value,
+ *                  or NULL if the values from the trie are to be used directly
+ * @param enumRange a pointer to a function that is called for each contiguous range
+ *                  of code points with the same (transformed) value
+ * @param context an opaque pointer that is passed on to the callback functions
+ */
+U_CAPI void U_EXPORT2
+utrie2_enumForLeadSurrogate(const UTrie2 *trie, UChar32 lead,
+                            UTrie2EnumValue *enumValue, UTrie2EnumRange *enumRange,
+                            const void *context);
+
+/**
+ * Set a value for a lead surrogate code unit.
+ *
+ * @param trie the unfrozen trie
+ * @param lead the lead surrogate code unit (U+D800..U+DBFF)
+ * @param value the value
+ * @param pErrorCode an in/out ICU UErrorCode; among other possible error codes:
+ * - U_NO_WRITE_PERMISSION if the trie is frozen
+ */
+U_CAPI void U_EXPORT2
+utrie2_set32ForLeadSurrogateCodeUnit(UTrie2 *trie,
+                                     UChar32 lead, uint32_t value,
+                                     UErrorCode *pErrorCode);
+
+/**
+ * Return a 16-bit trie value from a UTF-16 single/lead code unit (<=U+ffff).
+ * Same as UTRIE2_GET16() if c is a BMP code point except for lead surrogates,
+ * but smaller and faster.
+ *
+ * @param trie (const UTrie2 *, in) a frozen trie
+ * @param c (UChar32, in) the input code unit, must be 0<=c<=U+ffff
+ * @return (uint16_t) The code unit's trie value.
+ */
+#define UTRIE2_GET16_FROM_U16_SINGLE_LEAD(trie, c) _UTRIE2_GET_FROM_U16_SINGLE_LEAD((trie), index, c)
+
+/**
+ * Return a 32-bit trie value from a UTF-16 single/lead code unit (<=U+ffff).
+ * Same as UTRIE2_GET32() if c is a BMP code point except for lead surrogates,
+ * but smaller and faster.
+ *
+ * @param trie (const UTrie2 *, in) a frozen trie
+ * @param c (UChar32, in) the input code unit, must be 0<=c<=U+ffff
+ * @return (uint32_t) The code unit's trie value.
+ */
+#define UTRIE2_GET32_FROM_U16_SINGLE_LEAD(trie, c) _UTRIE2_GET_FROM_U16_SINGLE_LEAD((trie), data32, c)
+
+/**
+ * Return a 16-bit trie value from a supplementary code point (U+10000..U+10ffff).
+ *
+ * @param trie (const UTrie2 *, in) a frozen trie
+ * @param c (UChar32, in) the input code point, must be U+10000<=c<=U+10ffff
+ * @return (uint16_t) The code point's trie value.
+ */
+#define UTRIE2_GET16_FROM_SUPP(trie, c) _UTRIE2_GET_FROM_SUPP((trie), index, c)
+
+/**
+ * Return a 32-bit trie value from a supplementary code point (U+10000..U+10ffff).
+ *
+ * @param trie (const UTrie2 *, in) a frozen trie
+ * @param c (UChar32, in) the input code point, must be U+10000<=c<=U+10ffff
+ * @return (uint32_t) The code point's trie value.
+ */
+#define UTRIE2_GET32_FROM_SUPP(trie, c) _UTRIE2_GET_FROM_SUPP((trie), data32, c)
+
+U_CDECL_END
+
+/* C++ convenience wrappers ------------------------------------------------- */
+
+#ifdef __cplusplus
+
+#include <unicode/utf.h>
+#include "mutex.h"
+
+U_NAMESPACE_BEGIN
+
+// Use the Forward/Backward subclasses below.
+class UTrie2StringIterator : public UMemory {
+public:
+    UTrie2StringIterator(const UTrie2 *t, const UChar *p) :
+        trie(t), codePointStart(p), codePointLimit(p), codePoint(U_SENTINEL) {}
+
+    const UTrie2 *trie;
+    const UChar *codePointStart, *codePointLimit;
+    UChar32 codePoint;
+};
+
+class BackwardUTrie2StringIterator : public UTrie2StringIterator {
+public:
+    BackwardUTrie2StringIterator(const UTrie2 *t, const UChar *s, const UChar *p) :
+        UTrie2StringIterator(t, p), start(s) {}
+
+    uint16_t previous16();
+
+    const UChar *start;
+};
+
+class ForwardUTrie2StringIterator : public UTrie2StringIterator {
+public:
+    // Iteration limit l can be NULL.
+    // In that case, the caller must detect c==0 and stop.
+    ForwardUTrie2StringIterator(const UTrie2 *t, const UChar *p, const UChar *l) :
+        UTrie2StringIterator(t, p), limit(l) {}
+
+    uint16_t next16();
+
+    const UChar *limit;
+};
+
+U_NAMESPACE_END
+
+#endif
+
+/* Internal definitions ----------------------------------------------------- */
+
+U_CDECL_BEGIN
+
+/** Build-time trie structure. */
+struct UNewTrie2;
+typedef struct UNewTrie2 UNewTrie2;
+
+/*
+ * Trie structure definition.
+ *
+ * Either the data table is 16 bits wide and accessed via the index
+ * pointer, with each index item increased by indexLength;
+ * in this case, data32==NULL, and data16 is used for direct ASCII access.
+ *
+ * Or the data table is 32 bits wide and accessed via the data32 pointer.
+ */
+struct UTrie2 {
+    /* protected: used by macros and functions for reading values */
+    const uint16_t *index;
+    const uint16_t *data16;     /* for fast UTF-8 ASCII access, if 16b data */
+    const uint32_t *data32;     /* NULL if 16b data is used via index */
+
+    int32_t indexLength, dataLength;
+    uint16_t index2NullOffset;  /* 0xffff if there is no dedicated index-2 null block */
+    uint16_t dataNullOffset;
+    uint32_t initialValue;
+    /** Value returned for out-of-range code points and illegal UTF-8. */
+    uint32_t errorValue;
+
+    /* Start of the last range which ends at U+10ffff, and its value. */
+    UChar32 highStart;
+    int32_t highValueIndex;
+
+    /* private: used by builder and unserialization functions */
+    void *memory;           /* serialized bytes; NULL if not frozen yet */
+    int32_t length;         /* number of serialized bytes at memory; 0 if not frozen yet */
+    UBool isMemoryOwned;    /* TRUE if the trie owns the memory */
+    UBool padding1;
+    int16_t padding2;
+    UNewTrie2 *newTrie;     /* builder object; NULL when frozen */
+};
+
+/**
+ * Trie constants, defining shift widths, index array lengths, etc.
+ *
+ * These are needed for the runtime macros but users can treat these as
+ * implementation details and skip to the actual public API further below.
+ */
+enum {
+    /** Shift size for getting the index-1 table offset. */
+    UTRIE2_SHIFT_1=6+5,
+
+    /** Shift size for getting the index-2 table offset. */
+    UTRIE2_SHIFT_2=5,
+
+    /**
+     * Difference between the two shift sizes,
+     * for getting an index-1 offset from an index-2 offset. 6=11-5
+     */
+    UTRIE2_SHIFT_1_2=UTRIE2_SHIFT_1-UTRIE2_SHIFT_2,
+
+    /**
+     * Number of index-1 entries for the BMP. 32=0x20
+     * This part of the index-1 table is omitted from the serialized form.
+     */
+    UTRIE2_OMITTED_BMP_INDEX_1_LENGTH=0x10000>>UTRIE2_SHIFT_1,
+
+    /** Number of code points per index-1 table entry. 2048=0x800 */
+    UTRIE2_CP_PER_INDEX_1_ENTRY=1<<UTRIE2_SHIFT_1,
+
+    /** Number of entries in an index-2 block. 64=0x40 */
+    UTRIE2_INDEX_2_BLOCK_LENGTH=1<<UTRIE2_SHIFT_1_2,
+
+    /** Mask for getting the lower bits for the in-index-2-block offset. */
+    UTRIE2_INDEX_2_MASK=UTRIE2_INDEX_2_BLOCK_LENGTH-1,
+
+    /** Number of entries in a data block. 32=0x20 */
+    UTRIE2_DATA_BLOCK_LENGTH=1<<UTRIE2_SHIFT_2,
+
+    /** Mask for getting the lower bits for the in-data-block offset. */
+    UTRIE2_DATA_MASK=UTRIE2_DATA_BLOCK_LENGTH-1,
+
+    /**
+     * Shift size for shifting left the index array values.
+     * Increases possible data size with 16-bit index values at the cost
+     * of compactability.
+     * This requires data blocks to be aligned by UTRIE2_DATA_GRANULARITY.
+     */
+    UTRIE2_INDEX_SHIFT=2,
+
+    /** The alignment size of a data block. Also the granularity for compaction. */
+    UTRIE2_DATA_GRANULARITY=1<<UTRIE2_INDEX_SHIFT,
+
+    /* Fixed layout of the first part of the index array. ------------------- */
+
+    /**
+     * The BMP part of the index-2 table is fixed and linear and starts at offset 0.
+     * Length=2048=0x800=0x10000>>UTRIE2_SHIFT_2.
+     */
+    UTRIE2_INDEX_2_OFFSET=0,
+
+    /**
+     * The part of the index-2 table for U+D800..U+DBFF stores values for
+     * lead surrogate code _units_ not code _points_.
+     * Values for lead surrogate code _points_ are indexed with this portion of the table.
+     * Length=32=0x20=0x400>>UTRIE2_SHIFT_2. (There are 1024=0x400 lead surrogates.)
+     */
+    UTRIE2_LSCP_INDEX_2_OFFSET=0x10000>>UTRIE2_SHIFT_2,
+    UTRIE2_LSCP_INDEX_2_LENGTH=0x400>>UTRIE2_SHIFT_2,
+
+    /** Count the lengths of both BMP pieces. 2080=0x820 */
+    UTRIE2_INDEX_2_BMP_LENGTH=UTRIE2_LSCP_INDEX_2_OFFSET+UTRIE2_LSCP_INDEX_2_LENGTH,
+
+    /**
+     * The 2-byte UTF-8 version of the index-2 table follows at offset 2080=0x820.
+     * Length 32=0x20 for lead bytes C0..DF, regardless of UTRIE2_SHIFT_2.
+     */
+    UTRIE2_UTF8_2B_INDEX_2_OFFSET=UTRIE2_INDEX_2_BMP_LENGTH,
+    UTRIE2_UTF8_2B_INDEX_2_LENGTH=0x800>>6,  /* U+0800 is the first code point after 2-byte UTF-8 */
+
+    /**
+     * The index-1 table, only used for supplementary code points, at offset 2112=0x840.
+     * Variable length, for code points up to highStart, where the last single-value range starts.
+     * Maximum length 512=0x200=0x100000>>UTRIE2_SHIFT_1.
+     * (For 0x100000 supplementary code points U+10000..U+10ffff.)
+     *
+     * The part of the index-2 table for supplementary code points starts
+     * after this index-1 table.
+     *
+     * Both the index-1 table and the following part of the index-2 table
+     * are omitted completely if there is only BMP data.
+     */
+    UTRIE2_INDEX_1_OFFSET=UTRIE2_UTF8_2B_INDEX_2_OFFSET+UTRIE2_UTF8_2B_INDEX_2_LENGTH,
+    UTRIE2_MAX_INDEX_1_LENGTH=0x100000>>UTRIE2_SHIFT_1,
+
+    /*
+     * Fixed layout of the first part of the data array. -----------------------
+     * Starts with 4 blocks (128=0x80 entries) for ASCII.
+     */
+
+    /**
+     * The illegal-UTF-8 data block follows the ASCII block, at offset 128=0x80.
+     * Used with linear access for single bytes 0..0xbf for simple error handling.
+     * Length 64=0x40, not UTRIE2_DATA_BLOCK_LENGTH.
+     */
+    UTRIE2_BAD_UTF8_DATA_OFFSET=0x80,
+
+    /** The start of non-linear-ASCII data blocks, at offset 192=0xc0. */
+    UTRIE2_DATA_START_OFFSET=0xc0
+};
+
+/* Internal functions and macros -------------------------------------------- */
+
+/**
+ * Internal function for part of the UTRIE2_U8_NEXTxx() macro implementations.
+ * Do not call directly.
+ * @internal
+ */
+U_INTERNAL int32_t U_EXPORT2
+utrie2_internalU8NextIndex(const UTrie2 *trie, UChar32 c,
+                           const uint8_t *src, const uint8_t *limit);
+
+/**
+ * Internal function for part of the UTRIE2_U8_PREVxx() macro implementations.
+ * Do not call directly.
+ * @internal
+ */
+U_INTERNAL int32_t U_EXPORT2
+utrie2_internalU8PrevIndex(const UTrie2 *trie, UChar32 c,
+                           const uint8_t *start, const uint8_t *src);
+
+
+/** Internal low-level trie getter. Returns a data index. */
+#define _UTRIE2_INDEX_RAW(offset, trieIndex, c) \
+    (((int32_t)((trieIndex)[(offset)+((c)>>UTRIE2_SHIFT_2)]) \
+    <<UTRIE2_INDEX_SHIFT)+ \
+    ((c)&UTRIE2_DATA_MASK))
+
+/** Internal trie getter from a UTF-16 single/lead code unit. Returns the data index. */
+#define _UTRIE2_INDEX_FROM_U16_SINGLE_LEAD(trieIndex, c) _UTRIE2_INDEX_RAW(0, trieIndex, c)
+
+/** Internal trie getter from a lead surrogate code point (D800..DBFF). Returns the data index. */
+#define _UTRIE2_INDEX_FROM_LSCP(trieIndex, c) \
+    _UTRIE2_INDEX_RAW(UTRIE2_LSCP_INDEX_2_OFFSET-(0xd800>>UTRIE2_SHIFT_2), trieIndex, c)
+
+/** Internal trie getter from a BMP code point. Returns the data index. */
+#define _UTRIE2_INDEX_FROM_BMP(trieIndex, c) \
+    _UTRIE2_INDEX_RAW(U_IS_LEAD(c) ? UTRIE2_LSCP_INDEX_2_OFFSET-(0xd800>>UTRIE2_SHIFT_2) : 0, \
+                      trieIndex, c)
+
+/** Internal trie getter from a supplementary code point below highStart. Returns the data index. */
+#define _UTRIE2_INDEX_FROM_SUPP(trieIndex, c) \
+    (((int32_t)((trieIndex)[ \
+        (trieIndex)[(UTRIE2_INDEX_1_OFFSET-UTRIE2_OMITTED_BMP_INDEX_1_LENGTH)+ \
+                      ((c)>>UTRIE2_SHIFT_1)]+ \
+        (((c)>>UTRIE2_SHIFT_2)&UTRIE2_INDEX_2_MASK)]) \
+    <<UTRIE2_INDEX_SHIFT)+ \
+    ((c)&UTRIE2_DATA_MASK))
+
+/**
+ * Internal trie getter from a code point, with checking that c is in 0..10FFFF.
+ * Returns the data index.
+ */
+#define _UTRIE2_INDEX_FROM_CP(trie, asciiOffset, c) \
+    ((uint32_t)(c)<0xd800 ? \
+        _UTRIE2_INDEX_RAW(0, (trie)->index, c) : \
+        (uint32_t)(c)<=0xffff ? \
+            _UTRIE2_INDEX_RAW( \
+                (c)<=0xdbff ? UTRIE2_LSCP_INDEX_2_OFFSET-(0xd800>>UTRIE2_SHIFT_2) : 0, \
+                (trie)->index, c) : \
+            (uint32_t)(c)>0x10ffff ? \
+                (asciiOffset)+UTRIE2_BAD_UTF8_DATA_OFFSET : \
+                (c)>=(trie)->highStart ? \
+                    (trie)->highValueIndex : \
+                    _UTRIE2_INDEX_FROM_SUPP((trie)->index, c))
+
+/** Internal trie getter from a UTF-16 single/lead code unit. Returns the data. */
+#define _UTRIE2_GET_FROM_U16_SINGLE_LEAD(trie, data, c) \
+    (trie)->data[_UTRIE2_INDEX_FROM_U16_SINGLE_LEAD((trie)->index, c)]
+
+/** Internal trie getter from a supplementary code point. Returns the data. */
+#define _UTRIE2_GET_FROM_SUPP(trie, data, c) \
+    (trie)->data[(c)>=(trie)->highStart ? (trie)->highValueIndex : \
+                 _UTRIE2_INDEX_FROM_SUPP((trie)->index, c)]
+
+/**
+ * Internal trie getter from a code point, with checking that c is in 0..10FFFF.
+ * Returns the data.
+ */
+#define _UTRIE2_GET(trie, data, asciiOffset, c) \
+    (trie)->data[_UTRIE2_INDEX_FROM_CP(trie, asciiOffset, c)]
+
+/** Internal next-post-increment: get the next code point (c) and its data. */
+#define _UTRIE2_U16_NEXT(trie, data, src, limit, c, result) { \
+    { \
+        uint16_t __c2; \
+        (c)=*(src)++; \
+        if(!U16_IS_LEAD(c)) { \
+            (result)=_UTRIE2_GET_FROM_U16_SINGLE_LEAD(trie, data, c); \
+        } else if((src)==(limit) || !U16_IS_TRAIL(__c2=*(src))) { \
+            (result)=(trie)->data[_UTRIE2_INDEX_FROM_LSCP((trie)->index, c)]; \
+        } else { \
+            ++(src); \
+            (c)=U16_GET_SUPPLEMENTARY((c), __c2); \
+            (result)=_UTRIE2_GET_FROM_SUPP((trie), data, (c)); \
+        } \
+    } \
+}
+
+/** Internal pre-decrement-previous: get the previous code point (c) and its data */
+#define _UTRIE2_U16_PREV(trie, data, start, src, c, result) { \
+    { \
+        uint16_t __c2; \
+        (c)=*--(src); \
+        if(!U16_IS_TRAIL(c) || (src)==(start) || !U16_IS_LEAD(__c2=*((src)-1))) { \
+            (result)=(trie)->data[_UTRIE2_INDEX_FROM_BMP((trie)->index, c)]; \
+        } else { \
+            --(src); \
+            (c)=U16_GET_SUPPLEMENTARY(__c2, (c)); \
+            (result)=_UTRIE2_GET_FROM_SUPP((trie), data, (c)); \
+        } \
+    } \
+}
+
+/** Internal UTF-8 next-post-increment: get the next code point's data. */
+#define _UTRIE2_U8_NEXT(trie, ascii, data, src, limit, result) { \
+    uint8_t __lead=(uint8_t)*(src)++; \
+    if(U8_IS_SINGLE(__lead)) { \
+        (result)=(trie)->ascii[__lead]; \
+    } else { \
+        uint8_t __t1, __t2; \
+        if( /* handle U+0800..U+FFFF inline */ \
+            0xe0<=__lead && __lead<0xf0 && ((src)+1)<(limit) && \
+            U8_IS_VALID_LEAD3_AND_T1(__lead, __t1=(uint8_t)*(src)) && \
+            (__t2=(uint8_t)(*((src)+1)-0x80))<= 0x3f \
+        ) { \
+            (src)+=2; \
+            (result)=(trie)->data[ \
+                ((int32_t)((trie)->index[((__lead-0xe0)<<(12-UTRIE2_SHIFT_2))+ \
+                                         ((__t1&0x3f)<<(6-UTRIE2_SHIFT_2))+(__t2>>UTRIE2_SHIFT_2)]) \
+                <<UTRIE2_INDEX_SHIFT)+ \
+                (__t2&UTRIE2_DATA_MASK)]; \
+        } else if( /* handle U+0080..U+07FF inline */ \
+            __lead<0xe0 && __lead>=0xc2 && (src)<(limit) && \
+            (__t1=(uint8_t)(*(src)-0x80))<=0x3f \
+        ) { \
+            ++(src); \
+            (result)=(trie)->data[ \
+                (trie)->index[(UTRIE2_UTF8_2B_INDEX_2_OFFSET-0xc0)+__lead]+ \
+                __t1]; \
+        } else { \
+            int32_t __index=utrie2_internalU8NextIndex((trie), __lead, (const uint8_t *)(src), \
+                                                                       (const uint8_t *)(limit)); \
+            (src)+=__index&7; \
+            (result)=(trie)->data[__index>>3]; \
+        } \
+    } \
+}
+
+/** Internal UTF-8 pre-decrement-previous: get the previous code point's data. */
+#define _UTRIE2_U8_PREV(trie, ascii, data, start, src, result) { \
+    uint8_t __b=(uint8_t)*--(src); \
+    if(U8_IS_SINGLE(__b)) { \
+        (result)=(trie)->ascii[__b]; \
+    } else { \
+        int32_t __index=utrie2_internalU8PrevIndex((trie), __b, (const uint8_t *)(start), \
+                                                                (const uint8_t *)(src)); \
+        (src)-=__index&7; \
+        (result)=(trie)->data[__index>>3]; \
+    } \
+}
+
+U_CDECL_END
+
+#endif
diff --git a/vendor/icu/src/utrie2_impl.h b/vendor/icu/src/utrie2_impl.h
new file mode 100644
index 0000000000..b7dc9d3fb4
--- /dev/null
+++ b/vendor/icu/src/utrie2_impl.h
@@ -0,0 +1,174 @@
+// © 2016 and later: Unicode, Inc. and others.
+// License & terms of use: http://www.unicode.org/copyright.html
+/*
+******************************************************************************
+*
+*   Copyright (C) 2001-2008, International Business Machines
+*   Corporation and others.  All Rights Reserved.
+*
+******************************************************************************
+*   file name:  utrie2_impl.h
+*   encoding:   UTF-8
+*   tab size:   8 (not used)
+*   indentation:4
+*
+*   created on: 2008sep26 (split off from utrie2.c)
+*   created by: Markus W. Scherer
+*
+*   Definitions needed for both runtime and builder code for UTrie2,
+*   used by utrie2.c and utrie2_builder.c.
+*/
+
+#ifndef __UTRIE2_IMPL_H__
+#define __UTRIE2_IMPL_H__
+
+#include "utrie2.h"
+
+/* Public UTrie2 API implementation ----------------------------------------- */
+
+/*
+ * These definitions are mostly needed by utrie2.c,
+ * but also by utrie2_serialize() and utrie2_swap().
+ */
+
+/*
+ * UTrie and UTrie2 signature values,
+ * in platform endianness and opposite endianness.
+ */
+#define UTRIE_SIG       0x54726965
+#define UTRIE_OE_SIG    0x65697254
+
+#define UTRIE2_SIG      0x54726932
+#define UTRIE2_OE_SIG   0x32697254
+
+/**
+ * Trie data structure in serialized form:
+ *
+ * UTrie2Header header;
+ * uint16_t index[header.index2Length];
+ * uint16_t data[header.shiftedDataLength<<2];  -- or uint32_t data[...]
+ * @internal
+ */
+typedef struct UTrie2Header {
+    /** "Tri2" in big-endian US-ASCII (0x54726932) */
+    uint32_t signature;
+
+    /**
+     * options bit field:
+     * 15.. 4   reserved (0)
+     *  3.. 0   UTrie2ValueBits valueBits
+     */
+    uint16_t options;
+
+    /** UTRIE2_INDEX_1_OFFSET..UTRIE2_MAX_INDEX_LENGTH */
+    uint16_t indexLength;
+
+    /** (UTRIE2_DATA_START_OFFSET..UTRIE2_MAX_DATA_LENGTH)>>UTRIE2_INDEX_SHIFT */
+    uint16_t shiftedDataLength;
+
+    /** Null index and data blocks, not shifted. */
+    uint16_t index2NullOffset, dataNullOffset;
+
+    /**
+     * First code point of the single-value range ending with U+10ffff,
+     * rounded up and then shifted right by UTRIE2_SHIFT_1.
+     */
+    uint16_t shiftedHighStart;
+} UTrie2Header;
+
+/**
+ * Constants for use with UTrie2Header.options.
+ * @internal
+ */
+enum {
+    /** Mask to get the UTrie2ValueBits valueBits from options. */
+    UTRIE2_OPTIONS_VALUE_BITS_MASK=0xf
+};
+
+/* Building a trie ---------------------------------------------------------- */
+
+/*
+ * These definitions are mostly needed by utrie2_builder.c, but also by
+ * utrie2_get32() and utrie2_enum().
+ */
+
+enum {
+    /**
+     * At build time, leave a gap in the index-2 table,
+     * at least as long as the maximum lengths of the 2-byte UTF-8 index-2 table
+     * and the supplementary index-1 table.
+     * Round up to UTRIE2_INDEX_2_BLOCK_LENGTH for proper compacting.
+     */
+    UNEWTRIE2_INDEX_GAP_OFFSET=UTRIE2_INDEX_2_BMP_LENGTH,
+    UNEWTRIE2_INDEX_GAP_LENGTH=
+        ((UTRIE2_UTF8_2B_INDEX_2_LENGTH+UTRIE2_MAX_INDEX_1_LENGTH)+UTRIE2_INDEX_2_MASK)&
+        ~UTRIE2_INDEX_2_MASK,
+
+    /**
+     * Maximum length of the build-time index-2 array.
+     * Maximum number of Unicode code points (0x110000) shifted right by UTRIE2_SHIFT_2,
+     * plus the part of the index-2 table for lead surrogate code points,
+     * plus the build-time index gap,
+     * plus the null index-2 block.
+     */
+    UNEWTRIE2_MAX_INDEX_2_LENGTH=
+        (0x110000>>UTRIE2_SHIFT_2)+
+        UTRIE2_LSCP_INDEX_2_LENGTH+
+        UNEWTRIE2_INDEX_GAP_LENGTH+
+        UTRIE2_INDEX_2_BLOCK_LENGTH,
+
+    UNEWTRIE2_INDEX_1_LENGTH=0x110000>>UTRIE2_SHIFT_1
+};
+
+/**
+ * Maximum length of the build-time data array.
+ * One entry per 0x110000 code points, plus the illegal-UTF-8 block and the null block,
+ * plus values for the 0x400 surrogate code units.
+ */
+#define UNEWTRIE2_MAX_DATA_LENGTH (0x110000+0x40+0x40+0x400)
+
+/*
+ * Build-time trie structure.
+ *
+ * Just using a boolean flag for "repeat use" could lead to data array overflow
+ * because we would not be able to detect when a data block becomes unused.
+ * It also leads to orphan data blocks that are kept through serialization.
+ *
+ * Need to use reference counting for data blocks,
+ * and allocDataBlock() needs to look for a free block before increasing dataLength.
+ *
+ * This scheme seems like overkill for index-2 blocks since the whole index array is
+ * preallocated anyway (unlike the growable data array).
+ * Just allocating multiple index-2 blocks as needed.
+ */
+struct UNewTrie2 {
+    int32_t index1[UNEWTRIE2_INDEX_1_LENGTH];
+    int32_t index2[UNEWTRIE2_MAX_INDEX_2_LENGTH];
+    uint32_t *data;
+
+    uint32_t initialValue, errorValue;
+    int32_t index2Length, dataCapacity, dataLength;
+    int32_t firstFreeBlock;
+    int32_t index2NullOffset, dataNullOffset;
+    UChar32 highStart;
+    UBool isCompacted;
+
+    /**
+     * Multi-purpose per-data-block table.
+     *
+     * Before compacting:
+     *
+     * Per-data-block reference counters/free-block list.
+     *  0: unused
+     * >0: reference counter (number of index-2 entries pointing here)
+     * <0: next free data block in free-block list
+     *
+     * While compacting:
+     *
+     * Map of adjusted indexes, used in compactData() and compactIndex2().
+     * Maps from original indexes to new ones.
+     */
+    int32_t map[UNEWTRIE2_MAX_DATA_LENGTH>>UTRIE2_SHIFT_2];
+};
+
+#endif
diff --git a/vendor/icu/src/utypes.cpp b/vendor/icu/src/utypes.cpp
new file mode 100644
index 0000000000..f0b1ec1803
--- /dev/null
+++ b/vendor/icu/src/utypes.cpp
@@ -0,0 +1,225 @@
+// © 2016 and later: Unicode, Inc. and others.
+// License & terms of use: http://www.unicode.org/copyright.html
+/*
+******************************************************************************
+*
+*   Copyright (C) 1997-2015, International Business Machines
+*   Corporation and others.  All Rights Reserved.
+*
+******************************************************************************
+*
+*  FILE NAME : utypes.c (previously putil.c)
+*
+*   Date        Name        Description
+*   10/07/2004  grhoten     split from putil.c
+******************************************************************************
+*/
+
+#include <unicode/utypes.h>
+
+/* u_errorName() ------------------------------------------------------------ */
+
+static const char * const
+_uErrorInfoName[U_ERROR_WARNING_LIMIT-U_ERROR_WARNING_START]={
+    "U_USING_FALLBACK_WARNING",
+    "U_USING_DEFAULT_WARNING",
+    "U_SAFECLONE_ALLOCATED_WARNING",
+    "U_STATE_OLD_WARNING",
+    "U_STRING_NOT_TERMINATED_WARNING",
+    "U_SORT_KEY_TOO_SHORT_WARNING",
+    "U_AMBIGUOUS_ALIAS_WARNING",
+    "U_DIFFERENT_UCA_VERSION",
+    "U_PLUGIN_CHANGED_LEVEL_WARNING",
+};
+
+static const char * const
+_uTransErrorName[U_PARSE_ERROR_LIMIT - U_PARSE_ERROR_START]={
+    "U_BAD_VARIABLE_DEFINITION",
+    "U_MALFORMED_RULE",
+    "U_MALFORMED_SET",
+    "U_MALFORMED_SYMBOL_REFERENCE",
+    "U_MALFORMED_UNICODE_ESCAPE",
+    "U_MALFORMED_VARIABLE_DEFINITION",
+    "U_MALFORMED_VARIABLE_REFERENCE",
+    "U_MISMATCHED_SEGMENT_DELIMITERS",
+    "U_MISPLACED_ANCHOR_START",
+    "U_MISPLACED_CURSOR_OFFSET",
+    "U_MISPLACED_QUANTIFIER",
+    "U_MISSING_OPERATOR",
+    "U_MISSING_SEGMENT_CLOSE",
+    "U_MULTIPLE_ANTE_CONTEXTS",
+    "U_MULTIPLE_CURSORS",
+    "U_MULTIPLE_POST_CONTEXTS",
+    "U_TRAILING_BACKSLASH",
+    "U_UNDEFINED_SEGMENT_REFERENCE",
+    "U_UNDEFINED_VARIABLE",
+    "U_UNQUOTED_SPECIAL",
+    "U_UNTERMINATED_QUOTE",
+    "U_RULE_MASK_ERROR",
+    "U_MISPLACED_COMPOUND_FILTER",
+    "U_MULTIPLE_COMPOUND_FILTERS",
+    "U_INVALID_RBT_SYNTAX",
+    "U_INVALID_PROPERTY_PATTERN",
+    "U_MALFORMED_PRAGMA",
+    "U_UNCLOSED_SEGMENT",
+    "U_ILLEGAL_CHAR_IN_SEGMENT",
+    "U_VARIABLE_RANGE_EXHAUSTED",
+    "U_VARIABLE_RANGE_OVERLAP",
+    "U_ILLEGAL_CHARACTER",
+    "U_INTERNAL_TRANSLITERATOR_ERROR",
+    "U_INVALID_ID",
+    "U_INVALID_FUNCTION"
+};
+
+static const char * const
+_uErrorName[U_STANDARD_ERROR_LIMIT]={
+    "U_ZERO_ERROR",
+
+    "U_ILLEGAL_ARGUMENT_ERROR",
+    "U_MISSING_RESOURCE_ERROR",
+    "U_INVALID_FORMAT_ERROR",
+    "U_FILE_ACCESS_ERROR",
+    "U_INTERNAL_PROGRAM_ERROR",
+    "U_MESSAGE_PARSE_ERROR",
+    "U_MEMORY_ALLOCATION_ERROR",
+    "U_INDEX_OUTOFBOUNDS_ERROR",
+    "U_PARSE_ERROR",
+    "U_INVALID_CHAR_FOUND",
+    "U_TRUNCATED_CHAR_FOUND",
+    "U_ILLEGAL_CHAR_FOUND",
+    "U_INVALID_TABLE_FORMAT",
+    "U_INVALID_TABLE_FILE",
+    "U_BUFFER_OVERFLOW_ERROR",
+    "U_UNSUPPORTED_ERROR",
+    "U_RESOURCE_TYPE_MISMATCH",
+    "U_ILLEGAL_ESCAPE_SEQUENCE",
+    "U_UNSUPPORTED_ESCAPE_SEQUENCE",
+    "U_NO_SPACE_AVAILABLE",
+    "U_CE_NOT_FOUND_ERROR",
+    "U_PRIMARY_TOO_LONG_ERROR",
+    "U_STATE_TOO_OLD_ERROR",
+    "U_TOO_MANY_ALIASES_ERROR",
+    "U_ENUM_OUT_OF_SYNC_ERROR",
+    "U_INVARIANT_CONVERSION_ERROR",
+    "U_INVALID_STATE_ERROR",
+    "U_COLLATOR_VERSION_MISMATCH",
+    "U_USELESS_COLLATOR_ERROR",
+    "U_NO_WRITE_PERMISSION"
+};
+static const char * const
+_uFmtErrorName[U_FMT_PARSE_ERROR_LIMIT - U_FMT_PARSE_ERROR_START] = {
+    "U_UNEXPECTED_TOKEN",
+    "U_MULTIPLE_DECIMAL_SEPARATORS",
+    "U_MULTIPLE_EXPONENTIAL_SYMBOLS",
+    "U_MALFORMED_EXPONENTIAL_PATTERN",
+    "U_MULTIPLE_PERCENT_SYMBOLS",
+    "U_MULTIPLE_PERMILL_SYMBOLS",
+    "U_MULTIPLE_PAD_SPECIFIERS",
+    "U_PATTERN_SYNTAX_ERROR",
+    "U_ILLEGAL_PAD_POSITION",
+    "U_UNMATCHED_BRACES",
+    "U_UNSUPPORTED_PROPERTY",
+    "U_UNSUPPORTED_ATTRIBUTE",
+    "U_ARGUMENT_TYPE_MISMATCH",
+    "U_DUPLICATE_KEYWORD",
+    "U_UNDEFINED_KEYWORD",
+    "U_DEFAULT_KEYWORD_MISSING",
+    "U_DECIMAL_NUMBER_SYNTAX_ERROR",
+    "U_FORMAT_INEXACT_ERROR",
+    "U_NUMBER_ARG_OUTOFBOUNDS_ERROR"
+};
+
+static const char * const
+_uBrkErrorName[U_BRK_ERROR_LIMIT - U_BRK_ERROR_START] = {
+    "U_BRK_INTERNAL_ERROR",
+    "U_BRK_HEX_DIGITS_EXPECTED",
+    "U_BRK_SEMICOLON_EXPECTED",
+    "U_BRK_RULE_SYNTAX",
+    "U_BRK_UNCLOSED_SET",
+    "U_BRK_ASSIGN_ERROR",
+    "U_BRK_VARIABLE_REDFINITION",
+    "U_BRK_MISMATCHED_PAREN",
+    "U_BRK_NEW_LINE_IN_QUOTED_STRING",
+    "U_BRK_UNDEFINED_VARIABLE",
+    "U_BRK_INIT_ERROR",
+    "U_BRK_RULE_EMPTY_SET",
+    "U_BRK_UNRECOGNIZED_OPTION",
+    "U_BRK_MALFORMED_RULE_TAG"
+};
+
+static const char * const
+_uRegexErrorName[U_REGEX_ERROR_LIMIT - U_REGEX_ERROR_START] = {
+    "U_REGEX_INTERNAL_ERROR",
+    "U_REGEX_RULE_SYNTAX",
+    "U_REGEX_INVALID_STATE",
+    "U_REGEX_BAD_ESCAPE_SEQUENCE",
+    "U_REGEX_PROPERTY_SYNTAX",
+    "U_REGEX_UNIMPLEMENTED",
+    "U_REGEX_MISMATCHED_PAREN",
+    "U_REGEX_NUMBER_TOO_BIG",
+    "U_REGEX_BAD_INTERVAL",
+    "U_REGEX_MAX_LT_MIN",
+    "U_REGEX_INVALID_BACK_REF",
+    "U_REGEX_INVALID_FLAG",
+    "U_REGEX_LOOK_BEHIND_LIMIT",
+    "U_REGEX_SET_CONTAINS_STRING",
+    "U_REGEX_OCTAL_TOO_BIG",
+    "U_REGEX_MISSING_CLOSE_BRACKET",
+    "U_REGEX_INVALID_RANGE",
+    "U_REGEX_STACK_OVERFLOW",
+    "U_REGEX_TIME_OUT",
+    "U_REGEX_STOPPED_BY_CALLER",
+    "U_REGEX_PATTERN_TOO_BIG",
+    "U_REGEX_INVALID_CAPTURE_GROUP_NAME"
+};
+
+static const char * const
+_uIDNAErrorName[U_IDNA_ERROR_LIMIT - U_IDNA_ERROR_START] = {
+     "U_STRINGPREP_PROHIBITED_ERROR",
+     "U_STRINGPREP_UNASSIGNED_ERROR",
+     "U_STRINGPREP_CHECK_BIDI_ERROR",
+     "U_IDNA_STD3_ASCII_RULES_ERROR",
+     "U_IDNA_ACE_PREFIX_ERROR",
+     "U_IDNA_VERIFICATION_ERROR",
+     "U_IDNA_LABEL_TOO_LONG_ERROR",
+     "U_IDNA_ZERO_LENGTH_LABEL_ERROR",
+     "U_IDNA_DOMAIN_NAME_TOO_LONG_ERROR"
+};
+
+static const char * const
+_uPluginErrorName[U_PLUGIN_ERROR_LIMIT - U_PLUGIN_ERROR_START] = {
+     "U_PLUGIN_TOO_HIGH",
+     "U_PLUGIN_DIDNT_SET_LEVEL",
+};
+
+U_CAPI const char * U_EXPORT2
+u_errorName(UErrorCode code) {
+    if(U_ZERO_ERROR <= code && code < U_STANDARD_ERROR_LIMIT) {
+        return _uErrorName[code];
+    } else if(U_ERROR_WARNING_START <= code && code < U_ERROR_WARNING_LIMIT) {
+        return _uErrorInfoName[code - U_ERROR_WARNING_START];
+    } else if(U_PARSE_ERROR_START <= code && code < U_PARSE_ERROR_LIMIT){
+        return _uTransErrorName[code - U_PARSE_ERROR_START];
+    } else if(U_FMT_PARSE_ERROR_START <= code && code < U_FMT_PARSE_ERROR_LIMIT){
+        return _uFmtErrorName[code - U_FMT_PARSE_ERROR_START];
+    } else if (U_BRK_ERROR_START <= code  && code < U_BRK_ERROR_LIMIT){
+        return _uBrkErrorName[code - U_BRK_ERROR_START];
+    } else if (U_REGEX_ERROR_START <= code && code < U_REGEX_ERROR_LIMIT) {
+        return _uRegexErrorName[code - U_REGEX_ERROR_START];
+    } else if(U_IDNA_ERROR_START <= code && code < U_IDNA_ERROR_LIMIT) {
+        return _uIDNAErrorName[code - U_IDNA_ERROR_START];
+    } else if(U_PLUGIN_ERROR_START <= code && code < U_PLUGIN_ERROR_LIMIT) {
+        return _uPluginErrorName[code - U_PLUGIN_ERROR_START];
+    } else {
+        return "[BOGUS UErrorCode]";
+    }
+}
+
+/*
+ * Hey, Emacs, please set the following:
+ *
+ * Local Variables:
+ * indent-tabs-mode: nil
+ * End:
+ *
+ */