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authorUlrich Drepper <drepper@redhat.com>1998-04-13 15:01:09 +0000
committerUlrich Drepper <drepper@redhat.com>1998-04-13 15:01:09 +0000
commit2b47435322f026277a936c039c6ea45b975c2876 (patch)
treef6984d4da34bb384cbb74f637e75907789d3e523 /iconvdata/cns11643.h
parent40b4c81d4ec13a7a5acdeb1288f1d897b511b36c (diff)
downloadglibc-2b47435322f026277a936c039c6ea45b975c2876.tar.gz
Update.
1998-04-13 14:52 Ulrich Drepper <drepper@cygnus.com> * iconvdata/cns11643.c: New file. * iconvdata/cns11643.h: New file. * iconvdata/cns11643l1.c: New file. * iconvdata/cns11643l1.h: New file. * iconvdata/euctw.c: New file. * iconvdata/Makefile: Add rules for EUC-TW and CNS. * iconvdata/gconv-modules: Likewise. * iconvdata/eucjp.c: Several bug fixes and improvements. * iconvdata/gb2312.h: Likewise. * iconvdata/jis0201.h: Likewise. * iconvdata/jis0208.h: Likewise. * iconvdata/jis0212.h: Likewise.
Diffstat (limited to 'iconvdata/cns11643.h')
-rw-r--r--iconvdata/cns11643.h233
1 files changed, 233 insertions, 0 deletions
diff --git a/iconvdata/cns11643.h b/iconvdata/cns11643.h
new file mode 100644
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+++ b/iconvdata/cns11643.h
@@ -0,0 +1,233 @@
+/* Access functions for CNS 11643, plane 2 handling.
+ Copyright (C) 1998 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Ulrich Drepper <drepper@cygnus.com>, 1998.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Library General Public License as
+ published by the Free Software Foundation; either version 2 of the
+ License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Library General Public License for more details.
+
+ You should have received a copy of the GNU Library General Public
+ License along with the GNU C Library; see the file COPYING.LIB. If not,
+ write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA. */
+
+#include <stdint.h>
+
+/* Table for CNS 11643, plane 2 to UCS4 conversion. */
+extern const uint16_t cns11643l2_to_ucs4_tab[];
+extern const uint16_t cns11643l14_to_ucs4_tab[];
+
+
+static inline wchar_t
+cns11643_to_ucs4 (const char **s, size_t avail, unsigned char offset)
+{
+ unsigned char ch = *(*s);
+ unsigned char ch2;
+ unsigned char ch3;
+ wchar_t result;
+ int idx;
+
+ if (ch < offset || (ch - offset) <= 0x20 || (ch - offset) > 0x30)
+ return UNKNOWN_10646_CHAR;
+
+ if (avail < 3)
+ return 0;
+
+ ch2 = (*s)[1];
+ if ((ch2 - offset) <= 0x20 || (ch2 - offset) >= 0x7f)
+ return UNKNOWN_10646_CHAR;
+
+ ch3 = (*s)[2];
+ if ((ch3 - offset) <= 0x20 || (ch3 - offset) >= 0x7f)
+ return UNKNOWN_10646_CHAR;
+
+ idx = (ch2 - 0x21 - offset) * 94 + (ch3 - 0x21 - offset);
+
+ if ((ch - 0x21 - offset) == 1)
+ {
+ if (idx > 0x2196)
+ return UNKNOWN_10646_CHAR;
+ result = cns11643l1_to_ucs4_tab[idx];
+ }
+ else if ((ch - 0x21 - offset) == 2)
+ {
+ if (idx > 0x1de1)
+ return UNKNOWN_10646_CHAR;
+ result = cns11643l2_to_ucs4_tab[idx];
+ }
+ else if ((ch - 0x21 - offset) == 0xe)
+ {
+ if (idx > 0x19bd)
+ return UNKNOWN_10646_CHAR;
+ result = cns11643l14_to_ucs4_tab[idx];
+ }
+ else
+ return UNKNOWN_10646_CHAR;
+
+ if (result != L'\0')
+ (*s) += 3;
+ else
+ result = UNKNOWN_10646_CHAR;
+
+ return result;
+}
+
+
+/* Tables for the UCS4 -> CNS conversion. */
+extern const char cns11643l1_from_ucs4_tab1[][2];
+extern const char cns11643l1_from_ucs4_tab2[][2];
+extern const char cns11643l1_from_ucs4_tab3[][2];
+extern const char cns11643l1_from_ucs4_tab4[][2];
+extern const char cns11643l1_from_ucs4_tab5[][2];
+extern const char cns11643l1_from_ucs4_tab6[][2];
+extern const char cns11643l1_from_ucs4_tab7[][2];
+extern const char cns11643l1_from_ucs4_tab8[][2];
+extern const char cns11643l1_from_ucs4_tab9[][2];
+extern const char cns11643l1_from_ucs4_tab10[][2];
+extern const char cns11643l1_from_ucs4_tab11[][2];
+extern const char cns11643l1_from_ucs4_tab12[][2];
+extern const char cns11643l1_from_ucs4_tab13[][2];
+extern const char cns11643l1_from_ucs4_tab14[][2];
+extern const char cns11643_from_ucs4_tab[][3];
+
+
+static inline size_t
+ucs4_to_cns11643 (wchar_t wch, char *s, size_t avail)
+{
+ unsigned int ch = (unsigned int) wch;
+ char buf[2];
+ const char *cp = NULL;
+ int needed = 2;
+
+ if (ch < 0xa7)
+ cp = "";
+ else if (ch < 0xf7)
+ cp = cns11643l1_from_ucs4_tab1[ch - 0xa7];
+ else if (ch < 0x2c7)
+ cp = "";
+ else if (ch <= 0x2d9)
+ cp = cns11643l1_from_ucs4_tab2[ch - 0x2c7];
+ else if (ch < 0x391)
+ cp = "";
+ else if (ch <= 0x3c9)
+ cp = cns11643l1_from_ucs4_tab3[ch - 0x391];
+ else if (ch < 0x2013)
+ cp = "";
+ else if (ch <= 0x203e)
+ cp = cns11643l1_from_ucs4_tab4[ch - 0x2013];
+ else if (ch == 0x2103)
+ cp = "\x22\x6a";
+ else if (ch == 0x2105)
+ cp = "\x22\x22";
+ else if (ch == 0x2109)
+ cp = "\x22\x6b";
+ else if (ch < 0x2160)
+ cp = "";
+ else if (ch <= 0x2169)
+ {
+ buf[0] = '\x24';
+ buf[1] = '\x2b' + (ch - 0x2160);
+ cp = buf;
+ }
+ else if (ch < 0x2170)
+ cp = "";
+ else if (ch <= 0x2179)
+ {
+ buf[0] = '\x26';
+ buf[1] = '\x35' + (ch - 0x2170);
+ cp = buf;
+ }
+ else if (ch < 0x2190)
+ cp = "";
+ else if (ch <= 0x2199)
+ cp = cns11643l1_from_ucs4_tab5[ch - 0x2190];
+ else if (ch < 0x2215)
+ cp = "";
+ else if (ch <= 0x2267)
+ cp = cns11643l1_from_ucs4_tab6[ch - 0x2215];
+ else if (ch == 0x22a5)
+ cp = "\x22\x47";
+ else if (ch == 0x22bf)
+ cp = "\x22\x4a";
+ else if (ch < 0x2400)
+ cp = "";
+ else if (ch <= 0x2421)
+ cp = cns11643l1_from_ucs4_tab7[ch - 0x2400];
+ else if (ch < 0x2460)
+ cp = "";
+ else if (ch <= 0x247d)
+ cp = cns11643l1_from_ucs4_tab8[ch - 0x2460];
+ else if (ch < 0x2500)
+ cp = "";
+ else if (ch <= 0x2642)
+ cp = cns11643l1_from_ucs4_tab9[ch - 0x2500];
+ else if (ch < 0x3000)
+ cp = "";
+ else if (ch <= 0x3029)
+ cp = cns11643l1_from_ucs4_tab10[ch - 0x3000];
+ else if (ch == 0x30fb)
+ cp = "\x21\x26";
+ else if (ch < 0x3105)
+ cp = "";
+ else if (ch <= 0x3129)
+ {
+ buf[0] = '\x25';
+ buf[1] = '\x26' + (ch - 0x3105);
+ cp = buf;
+ }
+ else if (ch == 0x32a3)
+ cp = "\x22\x21";
+ else if (ch < 0x338e)
+ cp = "";
+ else if (ch <= 0x33d5)
+ cp = cns11643l1_from_ucs4_tab11[ch - 0x338e];
+ else if (ch < 0x4e00)
+ cp = "";
+ else if (ch <= 0x9f9c)
+ {
+ cp = cns11643l1_from_ucs4_tab12[ch - 0x4e00];
+
+ if (cp[0] == '\0')
+ {
+ /* Let's try the other planes. */
+ needed = 3;
+ cp = cns11643_from_ucs4_tab[ch - 0x4e00];
+ }
+ }
+ else if (ch < 0xfe30)
+ cp = "";
+ else if (ch <= 0xfe6b)
+ cp = cns11643l1_from_ucs4_tab13[ch - 0xfe30];
+ else if (ch < 0xff01)
+ cp = "";
+ else if (ch <= 0xff5d)
+ cp = cns11643l1_from_ucs4_tab14[ch - 0xff01];
+ else if (ch == 0xffe0)
+ cp = "\x22\x66";
+ else if (ch == 0xffe1)
+ cp = "\x22\x67";
+ else if (ch == 0xffe5)
+ cp = "\x22\x64";
+ else
+ cp = "";
+
+ if (cp[0] == '\0')
+ return UNKNOWN_10646_CHAR;
+
+ if (avail < needed)
+ return 0;
+
+ s[0] = cp[0];
+ s[1] = cp[1];
+ if (needed == 3)
+ s[2] = cp[2];
+
+ return needed;
+}