1 /* $NetBSD: citrus_euctw.c,v 1.10 2005/10/29 18:02:04 tshiozak Exp $ */
4 * Copyright (c)2002 Citrus Project,
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30 * Copyright (c)1999 Citrus Project,
31 * All rights reserved.
33 * Redistribution and use in source and binary forms, with or without
34 * modification, are permitted provided that the following conditions
36 * 1. Redistributions of source code must retain the above copyright
37 * notice, this list of conditions and the following disclaimer.
38 * 2. Redistributions in binary form must reproduce the above copyright
39 * notice, this list of conditions and the following disclaimer in the
40 * documentation and/or other materials provided with the distribution.
42 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
43 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
44 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
45 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
46 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
47 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
48 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
49 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
50 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
51 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
54 * $Citrus: xpg4dl/FreeBSD/lib/libc/locale/euctw.c,v 1.13 2001/06/21 01:51:44 yamt Exp $
57 #include <sys/types.h>
68 #include "citrus_namespace.h"
69 #include "citrus_types.h"
70 #include "citrus_module.h"
71 #include "citrus_ctype.h"
72 #include "citrus_stdenc.h"
73 #include "citrus_euctw.h"
76 /* ----------------------------------------------------------------------
77 * private stuffs used by templates
89 _EUCTWEncodingInfo ei;
91 /* for future multi-locale facility */
94 _EUCTWState s_mbrtowc;
96 _EUCTWState s_mbsrtowcs;
97 _EUCTWState s_wcrtomb;
98 _EUCTWState s_wcsrtombs;
106 #define _CEI_TO_EI(_cei_) (&(_cei_)->ei)
107 #define _CEI_TO_STATE(_cei_, _func_) (_cei_)->states.s_##_func_
109 #define _FUNCNAME(m) _citrus_EUCTW_##m
110 #define _ENCODING_INFO _EUCTWEncodingInfo
111 #define _CTYPE_INFO _EUCTWCTypeInfo
112 #define _ENCODING_STATE _EUCTWState
113 #define _ENCODING_MB_CUR_MAX(_ei_) 4
114 #define _ENCODING_IS_STATE_DEPENDENT 0
115 #define _STATE_NEEDS_EXPLICIT_INIT(_ps_) 0
118 _citrus_EUCTW_cs(u_int c)
122 return ((c & 0x80) ? (c == _SS2 ? 2 : 1) : 0);
126 _citrus_EUCTW_count(int cs)
144 _citrus_EUCTW_init_state(_EUCTWEncodingInfo * __restrict ei,
145 _EUCTWState * __restrict s)
147 memset(s, 0, sizeof(*s));
152 _citrus_EUCTW_pack_state(_EUCTWEncodingInfo * __restrict ei,
153 void * __restrict pspriv,
154 const _EUCTWState * __restrict s)
156 memcpy(pspriv, (const void *)s, sizeof(*s));
161 _citrus_EUCTW_unpack_state(_EUCTWEncodingInfo * __restrict ei,
162 _EUCTWState * __restrict s,
163 const void * __restrict pspriv)
165 memcpy((void *)s, pspriv, sizeof(*s));
170 _citrus_EUCTW_encoding_module_init(_EUCTWEncodingInfo * __restrict ei,
171 const void * __restrict var, size_t lenvar)
174 _DIAGASSERT(ei != NULL);
176 memset((void *)ei, 0, sizeof(*ei));
183 _citrus_EUCTW_encoding_module_uninit(_EUCTWEncodingInfo *ei)
188 _citrus_EUCTW_mbrtowc_priv(_EUCTWEncodingInfo * __restrict ei,
189 wchar_t * __restrict pwc,
190 const char ** __restrict s,
191 size_t n, _EUCTWState * __restrict psenc,
192 size_t * __restrict nresult)
199 _DIAGASSERT(nresult != NULL);
200 _DIAGASSERT(ei != NULL);
201 _DIAGASSERT(psenc != NULL);
202 _DIAGASSERT(s != NULL);
207 _citrus_EUCTW_init_state(ei, psenc);
208 *nresult = 0; /* state independent */
212 chlenbak = psenc->chlen;
214 /* make sure we have the first byte in the buffer */
215 switch (psenc->chlen) {
219 psenc->ch[0] = *s0++;
231 c = _citrus_EUCTW_count(cs = _citrus_EUCTW_cs(psenc->ch[0] & 0xff));
234 while (psenc->chlen < c) {
237 psenc->ch[psenc->chlen] = *s0++;
245 if (psenc->ch[0] & 0x80)
247 wchar = psenc->ch[0] & 0xff;
250 if (!(psenc->ch[0] & 0x80) || !(psenc->ch[1] & 0x80))
252 wchar = ((psenc->ch[0] & 0xff) << 8) | (psenc->ch[1] & 0xff);
256 if ((u_char)psenc->ch[1] < 0xa1 || 0xa7 < (u_char)psenc->ch[1])
258 if (!(psenc->ch[2] & 0x80) || !(psenc->ch[3] & 0x80))
260 wchar = ((psenc->ch[2] & 0xff) << 8) | (psenc->ch[3] & 0xff);
261 wchar |= ('G' + psenc->ch[1] - 0xa1) << 24;
276 *nresult = c - chlenbak;
282 *nresult = (size_t)-1;
287 *nresult = (size_t)-1;
292 _citrus_EUCTW_wcrtomb_priv(_EUCTWEncodingInfo * __restrict ei,
293 char * __restrict s, size_t n, wchar_t wc,
294 _EUCTWState * __restrict psenc,
295 size_t * __restrict nresult)
297 wchar_t cs = wc & 0x7f000080;
299 int i, len, clen, ret;
301 _DIAGASSERT(ei != NULL);
302 _DIAGASSERT(nresult != NULL);
303 _DIAGASSERT(s != NULL);
308 if ((wc & 0x007f0000) && !(wc & 0x00800000))
311 if (clen == 1 && cs == 0x00000000) {
319 } else if (clen == 2 && cs == ('G' << 24)) {
328 } else if (clen == 2 && 'H' <= (cs >> 24) && (cs >> 24) <= 'M') {
329 /* CNS-11643-[2-7] */
336 *s++ = (cs >> 24) - 'H' + 0xa2;
346 *s++ = (v >> (i << 3)) & 0xff;
352 *nresult = (size_t)-1;
358 _citrus_EUCTW_stdenc_wctocs(_EUCTWEncodingInfo * __restrict ei,
359 _csid_t * __restrict csid,
360 _index_t * __restrict idx, wchar_t wc)
363 _DIAGASSERT(ei != NULL && csid != NULL && idx != NULL);
365 *csid = (_csid_t)(wc >> 24) & 0xFF;
366 *idx = (_index_t)(wc & 0x7F7F);
373 _citrus_EUCTW_stdenc_cstowc(_EUCTWEncodingInfo * __restrict ei,
374 wchar_t * __restrict wc,
375 _csid_t csid, _index_t idx)
378 _DIAGASSERT(ei != NULL && wc != NULL);
381 if ((idx & ~0x7F) != 0)
385 if (csid < 'G' || csid > 'M' || (idx & ~0x7F7F) != 0)
387 *wc = (wchar_t)idx | ((wchar_t)csid<<24);
395 _citrus_EUCTW_stdenc_get_state_desc_generic(_EUCTWEncodingInfo * __restrict ei,
396 _EUCTWState * __restrict psenc,
397 int * __restrict rstate)
400 if (psenc->chlen == 0)
401 *rstate = _STDENC_SDGEN_INITIAL;
403 *rstate = _STDENC_SDGEN_INCOMPLETE_CHAR;
408 /* ----------------------------------------------------------------------
409 * public interface for ctype
412 _CITRUS_CTYPE_DECLS(EUCTW);
413 _CITRUS_CTYPE_DEF_OPS(EUCTW);
415 #include "citrus_ctype_template.h"
417 /* ----------------------------------------------------------------------
418 * public interface for stdenc
421 _CITRUS_STDENC_DECLS(EUCTW);
422 _CITRUS_STDENC_DEF_OPS(EUCTW);
424 #include "citrus_stdenc_template.h"