1/*
2 * Copyright (c) 2002-2004 Tim J. Robbins. All rights reserved.
3 *
4 * ja_JP.SJIS locale table for BSD4.4/rune
5 * version 1.0
6 * (C) Sin'ichiro MIYATANI / Phase One, Inc
7 * May 12, 1995
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
11 * are met:
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in the
16 * documentation and/or other materials provided with the distribution.
17 * 3. All advertising materials mentioning features or use of this software
18 * must display the following acknowledgement:
19 * This product includes software developed by Phase One, Inc.
20 * 4. The name of Phase One, Inc. may be used to endorse or promote products
21 * derived from this software without specific prior written permission.
22 *
23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33 * SUCH DAMAGE.
34 */
35
36#if defined(LIBC_SCCS) && !defined(lint)
37static char sccsid[] = "@(#)mskanji.c 1.0 (Phase One) 5/5/95";
38#endif /* LIBC_SCCS and not lint */
39#include <sys/param.h>
40__FBSDID("$FreeBSD: head/lib/libc/locale/mskanji.c 128081 2004-04-10 00:27:52Z tjr $");
41
42#include <runetype.h>
43#include <stdlib.h>
44#include <string.h>
45#include <wchar.h>
46
47extern size_t (*__mbrtowc)(wchar_t * __restrict, const char * __restrict,
48 size_t, mbstate_t * __restrict);
49extern int (*__mbsinit)(const mbstate_t *);
50extern size_t (*__wcrtomb)(char * __restrict, wchar_t, mbstate_t * __restrict);
51
52int _MSKanji_init(_RuneLocale *);
53size_t _MSKanji_mbrtowc(wchar_t * __restrict, const char * __restrict, size_t,
54 mbstate_t * __restrict);
55int _MSKanji_mbsinit(const mbstate_t *);
56size_t _MSKanji_wcrtomb(char * __restrict, wchar_t, mbstate_t * __restrict);
57
58typedef struct {
59 int count;
60 u_char bytes[2];
61} _MSKanjiState;
62
63int
64_MSKanji_init(_RuneLocale *rl)
65{
66
67 __mbrtowc = _MSKanji_mbrtowc;
68 __wcrtomb = _MSKanji_wcrtomb;
69 __mbsinit = _MSKanji_mbsinit;
70 _CurrentRuneLocale = rl;
71 __mb_cur_max = 2;
72 return (0);
73}
74
75int
76_MSKanji_mbsinit(const mbstate_t *ps)
77{
78
79 return (ps == NULL || ((const _MSKanjiState *)ps)->count == 0);
80}
81
82size_t
83_MSKanji_mbrtowc(wchar_t * __restrict pwc, const char * __restrict s, size_t n,
84 mbstate_t * __restrict ps)
85{
86 _MSKanjiState *ms;
87 wchar_t wc;
88 int len, ocount;
89 size_t ncopy;
90
91 ms = (_MSKanjiState *)ps;
92
93 if (s == NULL) {
94 s = "";
95 n = 1;
96 pwc = NULL;
97 }
98
99 ncopy = MIN(MIN(n, MB_CUR_MAX), sizeof(ms->bytes) - ms->count);
100 memcpy(ms->bytes + ms->count, s, ncopy);
101 ocount = ms->count;
102 ms->count += ncopy;
103 s = (char *)ms->bytes;
104 n = ms->count;
105
106 if (n == 0)
107 /* Incomplete multibyte sequence */
108 return ((size_t)-2);
109 len = 1;
110 wc = *s++ & 0xff;
111 if ((wc > 0x80 && wc < 0xa0) || (wc >= 0xe0 && wc < 0xfd)) {
112 if (n < 2)
113 /* Incomplete multibyte sequence */
114 return ((size_t)-2);
115 wc = (wc << 8) | (*s++ & 0xff);
116 len = 2;
117 }
118 if (pwc != NULL)
119 *pwc = wc;
120 ms->count = 0;
121 return (wc == L'\0' ? 0 : len - ocount);
122}
123
124size_t
125_MSKanji_wcrtomb(char * __restrict s, wchar_t wc,
126 mbstate_t * __restrict ps __unused)
127{
128 int len, i;
129
130 if (s == NULL)
131 /* Reset to initial shift state (no-op) */
132 return (1);
133 len = (wc > 0x100) ? 2 : 1;
134 for (i = len; i-- > 0; )
135 *s++ = wc >> (i << 3);
136 return (len);
137}