diff options
Diffstat (limited to 'iconvdata/cns11643l1.h')
| -rw-r--r-- | iconvdata/cns11643l1.h | 191 |
1 files changed, 191 insertions, 0 deletions
diff --git a/iconvdata/cns11643l1.h b/iconvdata/cns11643l1.h new file mode 100644 index 0000000000..4f9d08513d --- /dev/null +++ b/iconvdata/cns11643l1.h @@ -0,0 +1,191 @@ +/* Access functions for CNS 11643, plane 1 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 1 to UCS4 conversion. */ +extern const uint16_t cns11643l1_to_ucs4_tab[]; + + +static inline wchar_t +cns11643l1_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) > 0x7d) + 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 > 0x2196) + return UNKNOWN_10646_CHAR; + + (*s) += 2; + + return cns11643l1_to_ucs4_tab[idx] ?: ((*s) -= 2, UNKNOWN_10646_CHAR); +} + + +/* 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]; + + +static inline size_t +ucs4_to_cns11643l1 (wchar_t wch, char *s, size_t avail) +{ + unsigned int ch = (unsigned int) wch; + char buf[2]; + const char *cp = NULL; + + 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]; + 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 < 2) + return 0; + + s[0] = cp[0]; + s[1] = cp[1]; + + return 2; +} |