2 * Copyright 2013 Garrett D'Amore <garrett@damore.org>
3 * Copyright 2010 Nexenta Systems, Inc. All rights reserved.
4 * Copyright (c) 2002-2004 Tim J. Robbins. All rights reserved.
6 * The Regents of the University of California. All rights reserved.
8 * This code is derived from software contributed to Berkeley by
9 * Paul Borman at Krystal Technologies.
11 * Copyright (c) 2011 The FreeBSD Foundation
12 * All rights reserved.
13 * Portions of this software were developed by David Chisnall
14 * under sponsorship from the FreeBSD Foundation.
16 * Redistribution and use in source and binary forms, with or without
17 * modification, are permitted provided that the following conditions
19 * 1. Redistributions of source code must retain the above copyright
20 * notice, this list of conditions and the following disclaimer.
21 * 2. Redistributions in binary form must reproduce the above copyright
22 * notice, this list of conditions and the following disclaimer in the
23 * documentation and/or other materials provided with the distribution.
24 * 3. Neither the name of the University nor the names of its contributors
25 * may be used to endorse or promote products derived from this software
26 * without specific prior written permission.
28 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
29 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
30 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
31 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
32 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
33 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
34 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
35 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
36 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
37 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
40 * @(#)big5.c 8.1 (Berkeley) 6/4/93
43 #include <sys/types.h>
51 static size_t _BIG5_mbrtowc(wchar_t * __restrict, const char * __restrict,
52 size_t, mbstate_t * __restrict);
53 static int _BIG5_mbsinit(const mbstate_t *);
54 static size_t _BIG5_wcrtomb(char * __restrict, wchar_t,
55 mbstate_t * __restrict);
56 static size_t _BIG5_mbsnrtowcs(wchar_t * __restrict,
57 const char ** __restrict, size_t, size_t,
58 mbstate_t * __restrict);
59 static size_t _BIG5_wcsnrtombs(char * __restrict,
60 const wchar_t ** __restrict, size_t, size_t,
61 mbstate_t * __restrict);
68 _BIG5_init(struct xlocale_ctype *l, _RuneLocale *rl)
71 l->__mbrtowc = _BIG5_mbrtowc;
72 l->__wcrtomb = _BIG5_wcrtomb;
73 l->__mbsnrtowcs = _BIG5_mbsnrtowcs;
74 l->__wcsnrtombs = _BIG5_wcsnrtombs;
75 l->__mbsinit = _BIG5_mbsinit;
78 l->__mb_sb_limit = 128;
83 _BIG5_mbsinit(const mbstate_t *ps)
86 return (ps == NULL || ((const _BIG5State *)ps)->ch == 0);
94 return ((c >= 0xa1 && c <= 0xfe) ? 2 : 1);
98 _BIG5_mbrtowc(wchar_t * __restrict pwc, const char * __restrict s, size_t n,
99 mbstate_t * __restrict ps)
105 bs = (_BIG5State *)ps;
107 if ((bs->ch & ~0xFF) != 0) {
108 /* Bad conversion state. */
120 /* Incomplete multibyte sequence */
128 wc = (bs->ch << 8) | (*s & 0xFF);
135 len = (size_t)_big5_check(*s);
139 /* Incomplete multibyte sequence */
147 wc = (wc << 8) | (*s++ & 0xff);
154 return (wc == L'\0' ? 0 : 1);
159 _BIG5_wcrtomb(char * __restrict s, wchar_t wc, mbstate_t * __restrict ps)
163 bs = (_BIG5State *)ps;
171 /* Reset to initial shift state (no-op) */
174 *s++ = (wc >> 8) & 0xff;
183 _BIG5_mbsnrtowcs(wchar_t * __restrict dst, const char ** __restrict src,
184 size_t nms, size_t len, mbstate_t * __restrict ps)
186 return (__mbsnrtowcs_std(dst, src, nms, len, ps, _BIG5_mbrtowc));
190 _BIG5_wcsnrtombs(char * __restrict dst, const wchar_t ** __restrict src,
191 size_t nwc, size_t len, mbstate_t * __restrict ps)
193 return (__wcsnrtombs_std(dst, src, nwc, len, ps, _BIG5_wcrtomb));