diff options
Diffstat (limited to 'REORG.TODO/iconvdata/gb2312.h')
| -rw-r--r-- | REORG.TODO/iconvdata/gb2312.h | 231 |
1 files changed, 231 insertions, 0 deletions
diff --git a/REORG.TODO/iconvdata/gb2312.h b/REORG.TODO/iconvdata/gb2312.h new file mode 100644 index 0000000000..5b9c12a252 --- /dev/null +++ b/REORG.TODO/iconvdata/gb2312.h @@ -0,0 +1,231 @@ +/* Access functions for GB2312 conversion. + 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/>. */ + +#ifndef _GB2312_H +#define _GB2312_H 1 + +#include <gconv.h> +#include <stdint.h> +#include <assert.h> + +/* Conversion table. */ +extern const uint16_t __gb2312_to_ucs[]; + + +static inline uint32_t +__attribute ((always_inline)) +gb2312_to_ucs4 (const unsigned 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 +__attribute ((always_inline)) +ucs4_to_gb2312 (uint32_t wch, unsigned char *s, size_t avail) +{ + unsigned int ch = (unsigned int) wch; + char buf[2]; + const char *cp = buf; + + switch (ch) + { + case 0xa4 ... 0x101: + cp = __gb2312_from_ucs4_tab1[ch - 0xa4]; + break; + case 0x113: + cp = "\x28\x25"; + break; + case 0x11b: + cp = "\x28\x27"; + break; + case 0x12b: + cp = "\x28\x29"; + break; + case 0x14d: + cp = "\x28\x2d"; + break; + case 0x16b: + cp = "\x28\x31"; + break; + case 0x1ce: + cp = "\x28\x23"; + break; + case 0x1d0: + cp = "\x28\x2b"; + break; + case 0x1d2: + cp = "\x28\x2f"; + break; + case 0x1d4: + cp = "\x28\x33"; + break; + case 0x1d6: + cp = "\x28\x35"; + break; + case 0x1d8: + cp = "\x28\x36"; + break; + case 0x1da: + cp = "\x28\x37"; + break; + case 0x1dc: + cp = "\x28\x38"; + break; + case 0x2c7: + cp = "\x21\x26"; + break; + case 0x2c9: + cp = "\x21\x25"; + break; + case 0x391 ... 0x3c9: + cp = __gb2312_from_ucs4_tab2[ch - 0x391]; + break; + case 0x401 ... 0x451: + cp = __gb2312_from_ucs4_tab3[ch - 0x401]; + break; + case 0x2015 ... 0x203b: + cp = __gb2312_from_ucs4_tab4[ch - 0x2015]; + break; + case 0x2103 ... 0x22a5: + cp = __gb2312_from_ucs4_tab5[ch - 0x2103]; + break; + case 0x2312: + cp = "\x21\x50"; + break; + case 0x2460 ... 0x249b: + cp = __gb2312_from_ucs4_tab6[ch - 0x2460]; + break; + case 0x2500 ... 0x254b: + buf[0] = '\x29'; + buf[1] = '\x24' + (ch % 256); + break; + case 0x25a0: + cp = "\x21\x76"; + break; + case 0x25a1: + cp = "\x21\x75"; + break; + case 0x25b2: + cp = "\x21\x78"; + break; + case 0x25b3: + cp = "\x21\x77"; + break; + case 0x25c6: + cp = "\x21\x74"; + break; + case 0x25c7: + cp = "\x21\x73"; + break; + case 0x25cb: + cp = "\x21\x70"; + break; + case 0x25ce: + cp = "\x21\x72"; + break; + case 0x25cf: + cp = "\x21\x71"; + break; + case 0x2605: + cp = "\x21\x6f"; + break; + case 0x2606: + cp = "\x21\x6e"; + break; + case 0x2640: + cp = "\x21\x62"; + break; + case 0x2642: + cp = "\x21\x61"; + break; + case 0x3000 ... 0x3129: + cp = __gb2312_from_ucs4_tab7[ch - 0x3000]; + break; + case 0x3220 ... 0x3229: + buf[0] = '\x22'; + buf[1] = '\x65' + (ch - 0x3220); + break; + case 0x4e00 ... 0x9fa0: + cp = __gb2312_from_ucs4_tab8[ch - 0x4e00]; + break; + case 0xff01 ... 0xff5e: + cp = __gb2312_from_ucs4_tab9[ch - 0xff01]; + break; + case 0xffe0: + cp = "\x21\x69"; + break; + case 0xffe1: + cp = "\x21\x6a"; + break; + case 0xffe3: + cp = "\x23\x7e"; + break; + case 0xffe5: + cp = "\x23\x24"; + break; + default: + return __UNKNOWN_10646_CHAR; + } + + if (cp[0] == '\0') + return __UNKNOWN_10646_CHAR; + + assert (cp[1] != '\0'); + + if (avail < 2) + return 0; + + s[0] = cp[0]; + s[1] = cp[1]; + + return 2; +} + +#endif /* gb2312.h */ |