webkitgtk-2.16.5HEADwebkitgtk-2.16.5master

1 files changed, 212 insertions, 0 deletions

diff --git a/Source/WebCore/css/makeSelectorPseudoElementsMap.py b/Source/WebCore/css/makeSelectorPseudoElementsMap.py
new file mode 100644
index 000000000..83b238e2f
--- /dev/null
+++ b/Source/WebCore/css/makeSelectorPseudoElementsMap.py
@@ -0,0 +1,212 @@
+#!/usr/bin/env python
+#
+# Copyright (C) 2014 Apple 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:
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. 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 APPLE INC. AND ITS 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 APPLE INC. OR ITS 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.
+
+import os
+import sys
+
+
+def enumerablePseudoType(stringPseudoType):
+    output = ['CSSSelector::PseudoElement']
+
+    if stringPseudoType.endswith('('):
+        stringPseudoType = stringPseudoType[:-1]
+
+    webkitPrefix = '-webkit-'
+    if (stringPseudoType.startswith(webkitPrefix)):
+        stringPseudoType = stringPseudoType[len(webkitPrefix):]
+
+    khtmlPrefix = '-khtml-'
+    if (stringPseudoType.startswith(khtmlPrefix)):
+        stringPseudoType = stringPseudoType[len(khtmlPrefix):]
+
+    substring_start = 0
+    next_dash_position = stringPseudoType.find('-')
+    while (next_dash_position != -1):
+        output.append(stringPseudoType[substring_start].upper())
+        output.append(stringPseudoType[substring_start + 1:next_dash_position])
+        substring_start = next_dash_position + 1
+        next_dash_position = stringPseudoType.find('-', substring_start)
+
+    output.append(stringPseudoType[substring_start].upper())
+    output.append(stringPseudoType[substring_start + 1:])
+    return ''.join(output)
+
+
+def expand_ifdef_condition(condition):
+    return condition.replace('(', '_').replace(')', '')
+
+output_file = open('SelectorPseudoElementTypeMap.gperf', 'w')
+
+output_file.write("""
+%{
+/*
+ * Copyright (C) 2014 Apple 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:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. 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 APPLE INC. AND ITS 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 APPLE INC. OR ITS 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.
+ */
+
+// This file is automatically generated from SelectorPseudoTypeMap.in by makeprop, do not edit by hand.
+
+#include "config.h"
+#include "SelectorPseudoTypeMap.h"
+
+#if defined(__clang__)
+#pragma clang diagnostic push
+#pragma clang diagnostic ignored "-Wunknown-pragmas"
+#pragma clang diagnostic ignored "-Wdeprecated-register"
+#pragma clang diagnostic ignored "-Wimplicit-fallthrough"
+#endif
+
+namespace WebCore {
+
+struct SelectorPseudoTypeEntry {
+    const char* name;
+    CSSSelector::PseudoElementType type;
+};
+
+%}
+%struct-type
+%define initializer-suffix ,CSSSelector::PseudoElementUnknown
+%define class-name SelectorPseudoElementTypeMapHash
+%omit-struct-type
+%language=C++
+%readonly-tables
+%global-table
+%compare-strncmp
+%enum
+
+struct SelectorPseudoTypeEntry;
+
+%%
+""")
+
+webcore_defines = [i.strip() for i in sys.argv[-1].split(' ')]
+
+longest_keyword = 0
+
+ignore_until_endif = False
+input_file = open(sys.argv[1], 'r')
+for line in input_file:
+    line = line.strip()
+    if not line:
+        continue
+
+    if line.startswith('#if '):
+        condition = line[4:].strip()
+        if expand_ifdef_condition(condition) not in webcore_defines:
+            ignore_until_endif = True
+        continue
+
+    if line.startswith('#endif'):
+        ignore_until_endif = False
+        continue
+
+    if ignore_until_endif:
+        continue
+
+    keyword_definition = line.split(',')
+    if len(keyword_definition) == 1:
+        keyword = keyword_definition[0].strip()
+        pseudo_element_enum_value = enumerablePseudoType(keyword)
+    else:
+        keyword = keyword_definition[0].strip()
+        pseudo_element_enum_value = "CSSSelector::" + keyword_definition[1].strip()
+
+    output_file.write('"%s", %s\n' % (keyword, pseudo_element_enum_value))
+    longest_keyword = max(longest_keyword, len(keyword))
+
+output_file.write("""%%
+
+static inline CSSSelector::PseudoElementType parsePseudoElementString(const LChar* characters, unsigned length)
+{
+    if (const SelectorPseudoTypeEntry* entry = SelectorPseudoElementTypeMapHash::in_word_set(reinterpret_cast<const char*>(characters), length))
+        return entry->type;
+    return CSSSelector::PseudoElementUnknown;
+}""")
+
+output_file.write("""
+
+static inline CSSSelector::PseudoElementType parsePseudoElementString(const UChar* characters, unsigned length)
+{
+    const unsigned maxKeywordLength = %s;
+    LChar buffer[maxKeywordLength];
+    if (length > maxKeywordLength)
+        return CSSSelector::PseudoElementUnknown;
+
+    for (unsigned i = 0; i < length; ++i) {
+        UChar character = characters[i];
+        if (character & ~0xff)
+            return CSSSelector::PseudoElementUnknown;
+
+        buffer[i] = static_cast<LChar>(character);
+    }
+    return parsePseudoElementString(buffer, length);
+}
+""" % longest_keyword)
+
+output_file.write("""
+CSSSelector::PseudoElementType parsePseudoElementString(const StringImpl& pseudoTypeString)
+{
+    if (pseudoTypeString.is8Bit())
+        return parsePseudoElementString(pseudoTypeString.characters8(), pseudoTypeString.length());
+    return parsePseudoElementString(pseudoTypeString.characters16(), pseudoTypeString.length());
+}
+
+} // namespace WebCore
+
+#if defined(__clang__)
+#pragma clang diagnostic pop
+#endif
+
+""")
+output_file.close()
+
+gperf_command = sys.argv[2]
+if 'GPERF' in os.environ:
+    gperf_command = os.environ['GPERF']
+
+gperf_return = os.system("%s --key-positions=\"*\" -m 10 -s 2 SelectorPseudoElementTypeMap.gperf --output-file=SelectorPseudoElementTypeMap.cpp" % gperf_command)
+if gperf_return != 0:
+    print("Error when generating SelectorPseudoElementTypeMap.cpp from SelectorPseudoElementTypeMap.gperf :(")
+    sys.exit(gperf_return)