2 /* $NetBSD: citrus_euctw.c,v 1.11 2008/06/14 16:01:07 tnozaki Exp $ */
5 * Copyright (c)2002 Citrus Project,
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * Copyright (c)1999 Citrus Project,
32 * All rights reserved.
34 * Redistribution and use in source and binary forms, with or without
35 * modification, are permitted provided that the following conditions
37 * 1. Redistributions of source code must retain the above copyright
38 * notice, this list of conditions and the following disclaimer.
39 * 2. Redistributions in binary form must reproduce the above copyright
40 * notice, this list of conditions and the following disclaimer in the
41 * documentation and/or other materials provided with the distribution.
43 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
44 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
45 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
46 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
47 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
48 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
49 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
50 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
51 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
52 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
55 * $Citrus: xpg4dl/FreeBSD/lib/libc/locale/euctw.c,v 1.13 2001/06/21 01:51:44 yamt Exp $
58 #include <sys/cdefs.h>
59 #include <sys/types.h>
70 #include "citrus_namespace.h"
71 #include "citrus_types.h"
72 #include "citrus_module.h"
73 #include "citrus_stdenc.h"
74 #include "citrus_euctw.h"
77 /* ----------------------------------------------------------------------
78 * private stuffs used by templates
93 #define _CEI_TO_EI(_cei_) (&(_cei_)->ei)
94 #define _CEI_TO_STATE(_cei_, _func_) (_cei_)->states.s_##_func_
96 #define _FUNCNAME(m) _citrus_EUCTW_##m
97 #define _ENCODING_INFO _EUCTWEncodingInfo
98 #define _ENCODING_STATE _EUCTWState
99 #define _ENCODING_MB_CUR_MAX(_ei_) 4
100 #define _ENCODING_IS_STATE_DEPENDENT 0
101 #define _STATE_NEEDS_EXPLICIT_INIT(_ps_) 0
104 _citrus_EUCTW_cs(unsigned int c)
109 return ((c & 0x80) ? (c == _SS2 ? 2 : 1) : 0);
113 _citrus_EUCTW_count(int cs)
132 _citrus_EUCTW_init_state(_EUCTWEncodingInfo * __restrict ei __unused,
133 _EUCTWState * __restrict s)
136 memset(s, 0, sizeof(*s));
141 _citrus_EUCTW_pack_state(_EUCTWEncodingInfo * __restrict ei __unused,
142 void * __restrict pspriv, const _EUCTWState * __restrict s)
145 memcpy(pspriv, (const void *)s, sizeof(*s));
150 _citrus_EUCTW_unpack_state(_EUCTWEncodingInfo * __restrict ei __unused,
151 _EUCTWState * __restrict s, const void * __restrict pspriv)
154 memcpy((void *)s, pspriv, sizeof(*s));
159 _citrus_EUCTW_encoding_module_init(_EUCTWEncodingInfo * __restrict ei,
160 const void * __restrict var __unused, size_t lenvar __unused)
163 memset((void *)ei, 0, sizeof(*ei));
170 _citrus_EUCTW_encoding_module_uninit(_EUCTWEncodingInfo *ei __unused)
176 _citrus_EUCTW_mbrtowc_priv(_EUCTWEncodingInfo * __restrict ei,
177 wchar_t * __restrict pwc, char ** __restrict s,
178 size_t n, _EUCTWState * __restrict psenc, size_t * __restrict nresult)
187 _citrus_EUCTW_init_state(ei, psenc);
188 *nresult = 0; /* state independent */
192 chlenbak = psenc->chlen;
194 /* make sure we have the first byte in the buffer */
195 switch (psenc->chlen) {
199 psenc->ch[0] = *s0++;
211 c = _citrus_EUCTW_count(cs = _citrus_EUCTW_cs(psenc->ch[0] & 0xff));
214 while (psenc->chlen < c) {
217 psenc->ch[psenc->chlen] = *s0++;
225 if (psenc->ch[0] & 0x80)
227 wchar = psenc->ch[0] & 0xff;
230 if (!(psenc->ch[0] & 0x80) || !(psenc->ch[1] & 0x80))
232 wchar = ((psenc->ch[0] & 0xff) << 8) | (psenc->ch[1] & 0xff);
236 if ((unsigned char)psenc->ch[1] < 0xa1 ||
237 0xa7 < (unsigned char)psenc->ch[1])
239 if (!(psenc->ch[2] & 0x80) || !(psenc->ch[3] & 0x80))
241 wchar = ((psenc->ch[2] & 0xff) << 8) | (psenc->ch[3] & 0xff);
242 wchar |= ('G' + psenc->ch[1] - 0xa1) << 24;
253 *nresult = wchar ? c - chlenbak : 0;
258 *nresult = (size_t)-1;
263 *nresult = (size_t)-1;
268 _citrus_EUCTW_wcrtomb_priv(_EUCTWEncodingInfo * __restrict ei __unused,
269 char * __restrict s, size_t n, wchar_t wc,
270 _EUCTWState * __restrict psenc __unused, size_t * __restrict nresult)
276 cs = wc & 0x7f000080;
280 if ((wc & 0x007f0000) && !(wc & 0x00800000))
283 if (clen == 1 && cs == 0x00000000) {
291 } else if (clen == 2 && cs == ('G' << 24)) {
300 } else if (clen == 2 && 'H' <= (cs >> 24) && (cs >> 24) <= 'M') {
301 /* CNS-11643-[2-7] */
308 *s++ = (cs >> 24) - 'H' + 0xa2;
318 *s++ = (v >> (i << 3)) & 0xff;
324 *nresult = (size_t)-1;
330 _citrus_EUCTW_stdenc_wctocs(_EUCTWEncodingInfo * __restrict ei __unused,
331 _csid_t * __restrict csid, _index_t * __restrict idx, wchar_t wc)
334 *csid = (_csid_t)(wc >> 24) & 0xFF;
335 *idx = (_index_t)(wc & 0x7F7F);
342 _citrus_EUCTW_stdenc_cstowc(_EUCTWEncodingInfo * __restrict ei __unused,
343 wchar_t * __restrict wc, _csid_t csid, _index_t idx)
347 if ((idx & ~0x7F) != 0)
351 if (csid < 'G' || csid > 'M' || (idx & ~0x7F7F) != 0)
353 *wc = (wchar_t)idx | ((wchar_t)csid << 24);
361 _citrus_EUCTW_stdenc_get_state_desc_generic(_EUCTWEncodingInfo * __restrict ei __unused,
362 _EUCTWState * __restrict psenc, int * __restrict rstate)
365 *rstate = (psenc->chlen == 0) ? _STDENC_SDGEN_INITIAL :
366 _STDENC_SDGEN_INCOMPLETE_CHAR;
370 /* ----------------------------------------------------------------------
371 * public interface for stdenc
374 _CITRUS_STDENC_DECLS(EUCTW);
375 _CITRUS_STDENC_DEF_OPS(EUCTW);
377 #include "citrus_stdenc_template.h"