| lh | 9ed821d | 2023-04-07 01:36:19 -0700 | [diff] [blame] | 1 | /* Access functions for JISX0201 conversion. |
| 2 | Copyright (C) 1997-2015 Free Software Foundation, Inc. |
| 3 | This file is part of the GNU C Library. |
| 4 | Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997. |
| 5 | |
| 6 | The GNU C Library is free software; you can redistribute it and/or |
| 7 | modify it under the terms of the GNU Lesser General Public |
| 8 | License as published by the Free Software Foundation; either |
| 9 | version 2.1 of the License, or (at your option) any later version. |
| 10 | |
| 11 | The GNU C Library is distributed in the hope that it will be useful, |
| 12 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 14 | Lesser General Public License for more details. |
| 15 | |
| 16 | You should have received a copy of the GNU Lesser General Public |
| 17 | License along with the GNU C Library; if not, see |
| 18 | <http://www.gnu.org/licenses/>. */ |
| 19 | |
| 20 | #ifndef _JIS0201_H |
| 21 | #define _JIS0201_H 1 |
| 22 | |
| 23 | #include <stdint.h> |
| 24 | |
| 25 | /* Conversion table. */ |
| 26 | extern const uint32_t __jisx0201_to_ucs4[]; |
| 27 | |
| 28 | |
| 29 | static inline uint32_t |
| 30 | __attribute ((always_inline)) |
| 31 | jisx0201_to_ucs4 (char ch) |
| 32 | { |
| 33 | uint32_t val = __jisx0201_to_ucs4[(unsigned char) ch]; |
| 34 | |
| 35 | if (val == 0 && ch != '\0') |
| 36 | val = __UNKNOWN_10646_CHAR; |
| 37 | |
| 38 | return val; |
| 39 | } |
| 40 | |
| 41 | |
| 42 | static inline size_t |
| 43 | __attribute ((always_inline)) |
| 44 | ucs4_to_jisx0201 (uint32_t wch, unsigned char *s) |
| 45 | { |
| 46 | unsigned char ch; |
| 47 | |
| 48 | if (wch == 0xa5) |
| 49 | ch = '\x5c'; |
| 50 | else if (wch == 0x203e) |
| 51 | ch = '\x7e'; |
| 52 | else if (wch < 0x7e && wch != 0x5c) |
| 53 | ch = wch; |
| 54 | else if (wch >= 0xff61 && wch <= 0xff9f) |
| 55 | ch = wch - 0xfec0; |
| 56 | else |
| 57 | return __UNKNOWN_10646_CHAR; |
| 58 | |
| 59 | s[0] = ch; |
| 60 | return 1; |
| 61 | } |
| 62 | |
| 63 | #endif /* jis0201.h */ |