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