diff options
Diffstat (limited to 'REORG.TODO/iconvdata/cns11643.h')
| -rw-r--r-- | REORG.TODO/iconvdata/cns11643.h | 273 |
1 files changed, 273 insertions, 0 deletions
diff --git a/REORG.TODO/iconvdata/cns11643.h b/REORG.TODO/iconvdata/cns11643.h new file mode 100644 index 0000000000..8164b340bb --- /dev/null +++ b/REORG.TODO/iconvdata/cns11643.h @@ -0,0 +1,273 @@ +/* Access functions for CNS 11643 handling. + Copyright (C) 1998-2017 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 Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 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 + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + <http://www.gnu.org/licenses/>. */ + +#include <stdint.h> + + +/* Table for CNS 11643, plane 1 to UCS4 conversion. */ +extern const uint16_t __cns11643l1_to_ucs4_tab[]; +/* Table for CNS 11643, plane 2 to UCS4 conversion. */ +extern const uint16_t __cns11643l2_to_ucs4_tab[]; +/* Table for CNS 11643, plane 3 to UCS4 conversion. */ +extern const uint32_t __cns11643l3_to_ucs4_tab[]; +/* Table for CNS 11643, plane 4 to UCS4 conversion. */ +extern const uint32_t __cns11643l4_to_ucs4_tab[]; +/* Table for CNS 11643, plane 5 to UCS4 conversion. */ +extern const uint32_t __cns11643l5_to_ucs4_tab[]; +/* Table for CNS 11643, plane 6 to UCS4 conversion. */ +extern const uint32_t __cns11643l6_to_ucs4_tab[]; +/* Table for CNS 11643, plane 7 to UCS4 conversion. */ +extern const uint32_t __cns11643l7_to_ucs4_tab[]; +/* Table for CNS 11643, plane 15 (old) to UCS4 conversion. */ +extern const uint32_t __cns11643l15_to_ucs4_tab[]; + + +static inline uint32_t +__attribute ((always_inline)) +cns11643_to_ucs4 (const unsigned char **s, size_t avail, unsigned char offset) +{ + unsigned char ch = *(*s); + unsigned char ch2; + unsigned char ch3; + uint32_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); + + switch (ch - 0x20 - offset) + { + case 1: + if (idx > 0x21f2) + return __UNKNOWN_10646_CHAR; + result = __cns11643l1_to_ucs4_tab[idx]; + break; + case 2: + if (idx > 0x1de1) + return __UNKNOWN_10646_CHAR; + result = __cns11643l2_to_ucs4_tab[idx]; + break; + case 3: + if (idx > 0x19bd) + return __UNKNOWN_10646_CHAR; + result = __cns11643l3_to_ucs4_tab[idx]; + break; + case 4: + if (idx > 0x1c81) + return __UNKNOWN_10646_CHAR; + result = __cns11643l4_to_ucs4_tab[idx]; + break; + case 5: + if (idx > 0x219a) + return __UNKNOWN_10646_CHAR; + result = __cns11643l5_to_ucs4_tab[idx]; + break; + case 6: + if (idx > 0x18f3) + return __UNKNOWN_10646_CHAR; + result = __cns11643l6_to_ucs4_tab[idx]; + break; + case 7: + if (idx > 0x198a) + return __UNKNOWN_10646_CHAR; + result = __cns11643l7_to_ucs4_tab[idx]; + break; + case 15: + if (idx > 0x1c00) + return __UNKNOWN_10646_CHAR; + result = __cns11643l15_to_ucs4_tab[idx]; + break; + default: + 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_ucs4p0_tab[][3]; +extern const char __cns11643_from_ucs4p2_tab[][3]; +extern const char __cns11643_from_ucs4p2c_tab[][3]; + + +static inline size_t +__attribute ((always_inline)) +ucs4_to_cns11643 (uint32_t wch, unsigned char *s, size_t avail) +{ + unsigned int ch = (unsigned int) wch; + char buf[2]; + const char *cp = buf; + size_t needed = 2; + + switch (ch) + { + case 0xa7 ... 0xf7: + cp = __cns11643l1_from_ucs4_tab1[ch - 0xa7]; + break; + case 0x2c7 ... 0x2d9: + cp = __cns11643l1_from_ucs4_tab2[ch - 0x2c7]; + break; + case 0x391 ... 0x3c9: + cp = __cns11643l1_from_ucs4_tab3[ch - 0x391]; + break; + case 0x2013 ... 0x203e: + cp = __cns11643l1_from_ucs4_tab4[ch - 0x2013]; + break; + case 0x2103: + cp = "\x22\x6a"; + break; + case 0x2105: + cp = "\x22\x22"; + break; + case 0x2109: + cp = "\x22\x6b"; + break; + case 0x2160 ... 0x2169: + buf[0] = '\x24'; + buf[1] = '\x2b' + (ch - 0x2160); + break; + case 0x2170 ... 0x2179: + buf[0] = '\x26'; + buf[1] = '\x35' + (ch - 0x2170); + break; + case 0x2190 ... 0x2199: + cp = __cns11643l1_from_ucs4_tab5[ch - 0x2190]; + break; + case 0x2215 ... 0x2267: + cp = __cns11643l1_from_ucs4_tab6[ch - 0x2215]; + break; + case 0x22a5: + cp = "\x22\x47"; + break; + case 0x22bf: + cp = "\x22\x4a"; + break; + case 0x2400 ... 0x2421: + cp = __cns11643l1_from_ucs4_tab7[ch - 0x2400]; + break; + case 0x2460 ... 0x247d: + cp = __cns11643l1_from_ucs4_tab8[ch - 0x2460]; + break; + case 0x2500 ... 0x2642: + cp = __cns11643l1_from_ucs4_tab9[ch - 0x2500]; + break; + case 0x3000 ... 0x3029: + cp = __cns11643l1_from_ucs4_tab10[ch - 0x3000]; + break; + case 0x30fb: + cp = "\x21\x26"; + break; + case 0x3105 ... 0x3129: + buf[0] = '\x25'; + buf[1] = '\x47' + (ch - 0x3105); + break; + case 0x32a3: + cp = "\x22\x21"; + break; + case 0x338e ... 0x33d5: + cp = __cns11643l1_from_ucs4_tab11[ch - 0x338e]; + break; + case 0x4e00 ... 0x9f9c: + cp = __cns11643l1_from_ucs4_tab12[ch - 0x4e00]; + if (cp[0] != '\0') + break; + /* FALLTHROUGH. Let's try the other planes. */ + case 0x3400 ... 0x4dff: + case 0x9f9d ... 0x9fa5: + /* Let's try the other planes. */ + needed = 3; + cp = __cns11643_from_ucs4p0_tab[ch - 0x3400]; + break; + case 0xfa28: + needed = 3; + cp = "\x0f\x58\x4c"; + break; + case 0xfe30 ... 0xfe6b: + cp = __cns11643l1_from_ucs4_tab13[ch - 0xfe30]; + break; + case 0xff01 ... 0xff5d: + cp = __cns11643l1_from_ucs4_tab14[ch - 0xff01]; + break; + case 0xffe0: + cp = "\x22\x66"; + break; + case 0xffe1: + cp = "\x22\x67"; + break; + case 0xffe5: + cp = "\x22\x64"; + break; + case 0x20000 ... 0x2a6d6: + needed = 3; + cp = __cns11643_from_ucs4p2_tab[ch - 0x20000]; + break; + case 0x2f800 ... 0x2fa1d: + needed = 3; + cp = __cns11643_from_ucs4p2c_tab[ch - 0x2f800]; + break; + default: + return __UNKNOWN_10646_CHAR; + } + + 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; +} |