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-rw-r--r--iconvdata/gb2312.h185
1 files changed, 185 insertions, 0 deletions
diff --git a/iconvdata/gb2312.h b/iconvdata/gb2312.h
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+++ b/iconvdata/gb2312.h
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+/* Access functions for GB2312 conversion.
+ 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. */
+
+#ifndef _GB2312_H
+#define _GB2312_H 1
+
+#include <gconv.h>
+#include <stdint.h>
+
+/* Conversion table. */
+extern const uint16_t gb2312_to_ucs[];
+
+
+static inline wchar_t
+gb2312_to_ucs4 (const char **s, size_t avail, unsigned char offset)
+{
+ unsigned char ch = *(*s);
+ unsigned char ch2;
+ int idx;
+
+ if (ch < offset || (ch - offset) <= 0x20 || (ch - offset) > 0x77)
+ return UNKNOWN_10646_CHAR;
+
+ if (avail < 2)
+ return 0;
+
+ ch2 = (*s)[1];
+ if ((ch2 - offset) <= 0x20 || (ch2 - offset) >= 0x7f)
+ return UNKNOWN_10646_CHAR;
+
+ idx = (ch - 0x21 - offset) * 94 + (ch2 - 0x21 - offset);
+ if (idx >= 0x1ff1)
+ return UNKNOWN_10646_CHAR;
+
+ (*s) += 2;
+
+ return gb2312_to_ucs[idx] ?: ((*s) -= 2, UNKNOWN_10646_CHAR);
+}
+
+
+extern const char gb2312_from_ucs4_tab1[][2];
+extern const char gb2312_from_ucs4_tab2[][2];
+extern const char gb2312_from_ucs4_tab3[][2];
+extern const char gb2312_from_ucs4_tab4[][2];
+extern const char gb2312_from_ucs4_tab5[][2];
+extern const char gb2312_from_ucs4_tab6[][2];
+extern const char gb2312_from_ucs4_tab7[][2];
+extern const char gb2312_from_ucs4_tab8[][2];
+extern const char gb2312_from_ucs4_tab9[][2];
+
+static inline size_t
+ucs4_to_gb2312 (wchar_t wch, char *s, size_t avail)
+{
+ unsigned int ch = (unsigned int) wch;
+ char buf[2];
+ const char *cp = NULL;
+
+ if (ch < 0xa4)
+ cp = NULL;
+ else if (ch < 0x101)
+ cp = gb2312_from_ucs4_tab1[ch - 0xa4];
+ else if (ch == 0x113)
+ cp = "\x28\x25";
+ else if (ch == 0x11b)
+ cp = "\x28\x27";
+ else if (ch == 0x12b)
+ cp = "\x28\x29";
+ else if (ch == 0x14d)
+ cp = "\x28\x2d";
+ else if (ch == 0x16b)
+ cp = "\x28\x31";
+ else if (ch == 0x1ce)
+ cp = "\x28\x23";
+ else if (ch == 0x1d0)
+ cp = "\x28\x2b";
+ else if (ch == 0x1d2)
+ cp = "\x28\x2f";
+ else if (ch == 0x1d4)
+ cp = "\x28\x33";
+ else if (ch == 0x1d6)
+ cp = "\x28\x35";
+ else if (ch == 0x1d8)
+ cp = "\x28\x36";
+ else if (ch == 0x1da)
+ cp = "\x28\x37";
+ else if (ch == 0x1dc)
+ cp = "\x28\x38";
+ else if (ch == 0x2c7)
+ cp = "\x21\x26";
+ else if (ch == 0x2c9)
+ cp = "\x21\x25";
+ else if (ch >= 0x391 && ch <= 0x3c9)
+ cp = gb2312_from_ucs4_tab2[ch - 0x391];
+ else if (ch >= 0x401 && ch <= 0x451)
+ cp = gb2312_from_ucs4_tab3[ch - 0x401];
+ else if (ch >= 0x2015 && ch <= 0x203b)
+ cp = gb2312_from_ucs4_tab4[ch - 0x2015];
+ else if (ch >= 0x2103 && ch <= 0x22a5)
+ cp = gb2312_from_ucs4_tab5[ch - 0x2103];
+ else if (ch == 0x2313)
+ cp = "\x21\x50";
+ else if (ch >= 0x2460 && ch <= 0x249b)
+ cp = gb2312_from_ucs4_tab6[ch - 0x2460];
+ else if (ch >= 0x2500 && ch <= 0x254b)
+ {
+ buf[0] = '\x29';
+ buf[1] = '\x24' + (ch & 256);
+ cp = buf;
+ }
+ else if (ch == 0x25a0)
+ cp = "\x21\x76";
+ else if (ch == 0x25a1)
+ cp = "\x21\x75";
+ else if (ch == 0x25b2)
+ cp = "\x21\x78";
+ else if (ch == 0x25b3)
+ cp = "\x21\x77";
+ else if (ch == 0x25c6)
+ cp = "\x21\x74";
+ else if (ch == 0x25c7)
+ cp = "\x21\x73";
+ else if (ch == 0x25cb)
+ cp = "\x21\x70";
+ else if (ch == 0x25ce)
+ cp = "\x21\x72";
+ else if (ch == 0x25cf)
+ cp = "\x21\x71";
+ else if (ch == 0x2605)
+ cp = "\x21\x6f";
+ else if (ch == 0x2606)
+ cp = "\x21\x6e";
+ else if (ch == 0x2640)
+ cp = "\x21\x62";
+ else if (ch == 0x2642)
+ cp = "\x21\x61";
+ else if (ch >= 0x3000 && ch <= 0x3129)
+ cp = gb2312_from_ucs4_tab7[ch - 0x3000];
+ else if (ch >= 0x3220 && ch <= 0x3229)
+ {
+ buf[0] = '\x22';
+ buf[1] = '\x65' + (ch - 0x3220);
+ cp = buf;
+ }
+ else if (ch >= 0x4e00 && ch <= 0x9fa0)
+ cp = gb2312_from_ucs4_tab8[ch - 0x4e00];
+ else if (ch >= 0xff01 && ch <= 0xff5e)
+ cp = gb2312_from_ucs4_tab9[ch - 0xff01];
+ else if (ch == 0xffe0)
+ cp = "\x21\x69";
+ else if (ch == 0xffe1)
+ cp = "\x21\x6a";
+ else if (ch == 0xffe3)
+ cp = "\x23\x7e";
+ else if (ch == 0xffe5)
+ cp = "\x23\x24";
+ else
+ return UNKNOWN_10646_CHAR;
+
+ if (cp[1] != '\0' && avail < 2)
+ return 0;
+
+ s[0] = cp[0];
+ s[1] = cp[1];
+
+ return 2;
+}
+
+#endif /* gb2312.h */