diff options
Diffstat (limited to 'REORG.TODO/iconvdata/jisx0213.h')
| -rw-r--r-- | REORG.TODO/iconvdata/jisx0213.h | 102 |
1 files changed, 102 insertions, 0 deletions
diff --git a/REORG.TODO/iconvdata/jisx0213.h b/REORG.TODO/iconvdata/jisx0213.h new file mode 100644 index 0000000000..ddc5df0b6e --- /dev/null +++ b/REORG.TODO/iconvdata/jisx0213.h @@ -0,0 +1,102 @@ +/* Functions for JISX0213 conversion. + Copyright (C) 2002-2017 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Bruno Haible <bruno@clisp.org>, 2002. + + 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 _JISX0213_H +#define _JISX0213_H 1 + +#include <stdint.h> + +extern const uint16_t __jisx0213_to_ucs_combining[][2]; +extern const uint16_t __jisx0213_to_ucs_main[120 * 94]; +extern const uint32_t __jisx0213_to_ucs_pagestart[]; +extern const int16_t __jisx0213_from_ucs_level1[2715]; +extern const uint16_t __jisx0213_from_ucs_level2[]; + +#define NELEMS(arr) (sizeof (arr) / sizeof (arr[0])) + +static inline uint32_t +__attribute ((always_inline)) +jisx0213_to_ucs4 (unsigned int row, unsigned int col) +{ + uint32_t val; + + if (row >= 0x121 && row <= 0x17e) + row -= 289; + else if (row == 0x221) + row -= 451; + else if (row >= 0x223 && row <= 0x225) + row -= 452; + else if (row == 0x228) + row -= 454; + else if (row >= 0x22c && row <= 0x22f) + row -= 457; + else if (row >= 0x26e && row <= 0x27e) + row -= 519; + else + return 0x0000; + + if (col >= 0x21 && col <= 0x7e) + col -= 0x21; + else + return 0x0000; + + val = __jisx0213_to_ucs_main[row * 94 + col]; + val = __jisx0213_to_ucs_pagestart[val >> 8] + (val & 0xff); + if (val == 0xfffd) + val = 0x0000; + return val; +} + +static inline uint16_t +__attribute ((always_inline)) +ucs4_to_jisx0213 (uint32_t ucs) +{ + if (ucs < NELEMS (__jisx0213_from_ucs_level1) << 6) + { + int index1 = __jisx0213_from_ucs_level1[ucs >> 6]; + if (index1 >= 0) + return __jisx0213_from_ucs_level2[(index1 << 6) + (ucs & 0x3f)]; + } + return 0x0000; +} + +static inline int +__attribute ((always_inline)) +jisx0213_added_in_2004_p (uint16_t val) +{ + /* From JISX 0213:2000 to JISX 0213:2004, 10 characters were added to + plane 1, and plane 2 was left unchanged. See ISO-IR-233. */ + switch (val >> 8) + { + case 0x2e: + return val == 0x2e21; + case 0x2f: + return val == 0x2f7e; + case 0x4f: + return val == 0x4f54 || val == 0x4f7e; + case 0x74: + return val == 0x7427; + case 0x7e: + return val >= 0x7e7a && val <= 0x7e7e; + default: + return 0; + } +} + +#endif /* _JISX0213_H */ |