1 /* $NetBSD: citrus_johab.c,v 1.3 2007/10/23 15:28:25 tnozaki Exp $ */
2 /* $DragonFly: src/lib/libc/citrus/modules/citrus_johab.c,v 1.1 2008/04/10 10:21:01 hasso Exp $ */
5 * Copyright (c)2006 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
30 #include <sys/types.h>
42 #include "citrus_namespace.h"
43 #include "citrus_types.h"
44 #include "citrus_bcs.h"
45 #include "citrus_module.h"
46 #include "citrus_ctype.h"
47 #include "citrus_stdenc.h"
48 #include "citrus_johab.h"
50 /* ----------------------------------------------------------------------
51 * private stuffs used by templates
64 _JOHABEncodingInfo ei;
66 /* for future multi-locale facility */
69 _JOHABState s_mbrtowc;
71 _JOHABState s_mbsrtowcs;
72 _JOHABState s_wcrtomb;
73 _JOHABState s_wcsrtombs;
78 #define _CEI_TO_EI(_cei_) (&(_cei_)->ei)
79 #define _CEI_TO_STATE(_cei_, _func_) (_cei_)->states.s_##_func_
81 #define _FUNCNAME(m) _citrus_JOHAB_##m
82 #define _ENCODING_INFO _JOHABEncodingInfo
83 #define _CTYPE_INFO _JOHABCTypeInfo
84 #define _ENCODING_STATE _JOHABState
85 #define _ENCODING_MB_CUR_MAX(_ei_) 2
86 #define _ENCODING_IS_STATE_DEPENDENT 0
87 #define _STATE_NEEDS_EXPLICIT_INIT(_ps_) 0
92 _citrus_JOHAB_init_state(_JOHABEncodingInfo * __restrict ei,
93 _JOHABState * __restrict psenc)
96 _DIAGASSERT(psenc != NULL);
103 _citrus_JOHAB_pack_state(_JOHABEncodingInfo * __restrict ei,
104 void * __restrict pspriv,
105 const _JOHABState * __restrict psenc)
108 _DIAGASSERT(pspriv != NULL);
109 _DIAGASSERT(psenc != NULL);
111 memcpy(pspriv, (const void *)psenc, sizeof(*psenc));
116 _citrus_JOHAB_unpack_state(_JOHABEncodingInfo * __restrict ei,
117 _JOHABState * __restrict psenc,
118 const void * __restrict pspriv)
121 _DIAGASSERT(psenc != NULL);
122 _DIAGASSERT(pspriv != NULL);
124 memcpy((void *)psenc, pspriv, sizeof(*psenc));
129 _citrus_JOHAB_encoding_module_uninit(_JOHABEncodingInfo *ei)
136 _citrus_JOHAB_encoding_module_init(_JOHABEncodingInfo * __restrict ei,
137 const void * __restrict var, size_t lenvar)
144 ishangul(int l, int t)
147 return (l >= 0x84 && l <= 0xD3) &&
148 ((t >= 0x41 && t <= 0x7E) || (t >= 0x81 && t <= 0xFE));
154 return (l == 0xD8) &&
155 ((t >= 0x31 && t <= 0x7E) || (t >= 0x91 && t <= 0xFE));
159 ishanja(int l, int t)
161 return ((l >= 0xD9 && l <= 0xDE) || (l >= 0xE0 && l <= 0xF9)) &&
162 ((t >= 0x31 && t <= 0x7E) || (t >= 0x91 && t <= 0xFE));
167 _citrus_JOHAB_mbrtowc_priv(_JOHABEncodingInfo * __restrict ei,
168 wchar_t * __restrict pwc, const char ** __restrict s, size_t n,
169 _JOHABState * __restrict psenc, size_t * __restrict nresult)
174 /* ei may be unused */
175 _DIAGASSERT(s != NULL);
176 _DIAGASSERT(psenc != NULL);
177 _DIAGASSERT(nresult != 0);
180 _citrus_JOHAB_init_state(ei, psenc);
181 *nresult = _ENCODING_IS_STATE_DEPENDENT;
186 switch (psenc->chlen) {
194 *nresult = (l == 0) ? 0 : 1;
198 psenc->ch[psenc->chlen++] = l;
201 l = psenc->ch[0] & 0xFF;
208 *nresult = (size_t)-2;
213 if (!ishangul(l, t) && !isuda(l, t) && !ishanja(l, t)) {
214 *nresult = (size_t)-1;
218 *pwc = (wchar_t)(l << 8 | t);
228 _citrus_JOHAB_wcrtomb_priv(_JOHABEncodingInfo * __restrict ei,
229 char * __restrict s, size_t n, wchar_t wc,
230 _JOHABState * __restrict psenc, size_t * __restrict nresult)
234 /* ei may be unused */
235 _DIAGASSERT(s != NULL);
236 _DIAGASSERT(psenc != NULL);
237 _DIAGASSERT(nresult != NULL);
239 if (psenc->chlen != 0)
242 /* XXX assume wchar_t as int */
243 if ((uint32_t)wc <= 0x7F) {
248 } else if ((uint32_t)wc <= 0xFFFF) {
251 *nresult = (size_t)-1;
254 l = (wc >> 8) & 0xFF;
256 if (!ishangul(l, t) && !isuda(l, t) && !ishanja(l, t))
263 *nresult = (size_t)-1;
272 _citrus_JOHAB_stdenc_wctocs(_JOHABEncodingInfo * __restrict ei,
273 _csid_t * __restrict csid, _index_t * __restrict idx, wchar_t wc)
277 /* ei may be unused */
278 _DIAGASSERT(csid != NULL);
279 _DIAGASSERT(idx != NULL);
281 /* XXX assume wchar_t as int */
282 if ((uint32_t)wc <= 0x7F) {
285 } else if ((uint32_t)wc <= 0xFFFF) {
286 l = (wc >> 8) & 0xFF;
288 if (ishangul(l, t) || isuda(l, t)) {
292 if (l >= 0xD9 && l <= 0xDE) {
295 } else if (l >= 0xE0 && l <= 0xF9) {
302 if (t >= 0x31 && t <= 0x7E) {
304 } else if (t >= 0x91 && t <= 0xFE) {
309 l = (linear / 94) + m;
310 t = (linear % 94) + 0x21;
311 *idx = (_index_t)((l << 8) | t);
322 _citrus_JOHAB_stdenc_cstowc(_JOHABEncodingInfo * __restrict ei,
323 wchar_t * __restrict wc, _csid_t csid, _index_t idx)
325 int m, n, l, t, linear;
327 /* ei may be unused */
328 _DIAGASSERT(wc != NULL);
336 if (idx >= 0x2121 && idx <= 0x2C71) {
339 } else if (idx >= 0x4A21 && idx <= 0x7D7E) {
345 l = ((idx >> 8) & 0xFF) - n;
346 t = (idx & 0xFF) - 0x21;
347 linear = (l * 94) + t;
348 l = (linear / 188) + m;
350 t += (t <= 0x4D) ? 0x31 : 0x43;
360 _citrus_JOHAB_stdenc_get_state_desc_generic(_JOHABEncodingInfo * __restrict ei,
361 _JOHABState * __restrict psenc, int * __restrict rstate)
363 /* ei may be unused */
364 _DIAGASSERT(psenc != NULL);
365 _DIAGASSERT(rstate != NULL);
367 *rstate = (psenc->chlen == 0)
368 ? _STDENC_SDGEN_INITIAL
369 : _STDENC_SDGEN_INCOMPLETE_CHAR;
373 /* ----------------------------------------------------------------------
374 * public interface for ctype
377 _CITRUS_CTYPE_DECLS(JOHAB);
378 _CITRUS_CTYPE_DEF_OPS(JOHAB);
380 #include "citrus_ctype_template.h"
383 /* ----------------------------------------------------------------------
384 * public interface for stdenc
387 _CITRUS_STDENC_DECLS(JOHAB);
388 _CITRUS_STDENC_DEF_OPS(JOHAB);
390 #include "citrus_stdenc_template.h"