2 /* $NetBSD: citrus_johab.c,v 1.4 2008/06/14 16:01:07 tnozaki 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
29 #include <sys/cdefs.h>
30 #include <sys/types.h>
43 #include "citrus_namespace.h"
44 #include "citrus_types.h"
45 #include "citrus_bcs.h"
46 #include "citrus_module.h"
47 #include "citrus_stdenc.h"
48 #include "citrus_johab.h"
50 /* ----------------------------------------------------------------------
51 * private stuffs used by templates
63 #define _CEI_TO_EI(_cei_) (&(_cei_)->ei)
64 #define _CEI_TO_STATE(_cei_, _func_) (_cei_)->states.s_##_func_
66 #define _FUNCNAME(m) _citrus_JOHAB_##m
67 #define _ENCODING_INFO _JOHABEncodingInfo
68 #define _ENCODING_STATE _JOHABState
69 #define _ENCODING_MB_CUR_MAX(_ei_) 2
70 #define _ENCODING_IS_STATE_DEPENDENT 0
71 #define _STATE_NEEDS_EXPLICIT_INIT(_ps_) 0
76 _citrus_JOHAB_init_state(_JOHABEncodingInfo * __restrict ei __unused,
77 _JOHABState * __restrict psenc)
86 _citrus_JOHAB_pack_state(_JOHABEncodingInfo * __restrict ei __unused,
87 void * __restrict pspriv, const _JOHABState * __restrict psenc)
90 memcpy(pspriv, (const void *)psenc, sizeof(*psenc));
95 _citrus_JOHAB_unpack_state(_JOHABEncodingInfo * __restrict ei __unused,
96 _JOHABState * __restrict psenc, const void * __restrict pspriv)
99 memcpy((void *)psenc, pspriv, sizeof(*psenc));
105 _citrus_JOHAB_encoding_module_uninit(_JOHABEncodingInfo *ei __unused)
113 _citrus_JOHAB_encoding_module_init(_JOHABEncodingInfo * __restrict ei __unused,
114 const void * __restrict var __unused, size_t lenvar __unused)
122 ishangul(int l, int t)
125 return ((l >= 0x84 && l <= 0xD3) &&
126 ((t >= 0x41 && t <= 0x7E) || (t >= 0x81 && t <= 0xFE)));
133 return ((l == 0xD8) &&
134 ((t >= 0x31 && t <= 0x7E) || (t >= 0x91 && t <= 0xFE)));
138 ishanja(int l, int t)
141 return (((l >= 0xD9 && l <= 0xDE) || (l >= 0xE0 && l <= 0xF9)) &&
142 ((t >= 0x31 && t <= 0x7E) || (t >= 0x91 && t <= 0xFE)));
147 _citrus_JOHAB_mbrtowc_priv(_JOHABEncodingInfo * __restrict ei,
148 wchar_t * __restrict pwc, char ** __restrict s, size_t n,
149 _JOHABState * __restrict psenc, size_t * __restrict nresult)
155 _citrus_JOHAB_init_state(ei, psenc);
156 *nresult = _ENCODING_IS_STATE_DEPENDENT;
161 switch (psenc->chlen) {
169 *nresult = (l == 0) ? 0 : 1;
173 psenc->ch[psenc->chlen++] = l;
176 l = psenc->ch[0] & 0xFF;
183 *nresult = (size_t)-2;
188 if (!ishangul(l, t) && !isuda(l, t) && !ishanja(l, t)) {
189 *nresult = (size_t)-1;
193 *pwc = (wchar_t)(l << 8 | t);
203 _citrus_JOHAB_wcrtomb_priv(_JOHABEncodingInfo * __restrict ei __unused,
204 char * __restrict s, size_t n, wchar_t wc,
205 _JOHABState * __restrict psenc, size_t * __restrict nresult)
209 if (psenc->chlen != 0)
212 /* XXX assume wchar_t as int */
213 if ((uint32_t)wc <= 0x7F) {
218 } else if ((uint32_t)wc <= 0xFFFF) {
221 *nresult = (size_t)-1;
224 l = (wc >> 8) & 0xFF;
226 if (!ishangul(l, t) && !isuda(l, t) && !ishanja(l, t))
233 *nresult = (size_t)-1;
242 _citrus_JOHAB_stdenc_wctocs(_JOHABEncodingInfo * __restrict ei __unused,
243 _csid_t * __restrict csid, _index_t * __restrict idx, wchar_t wc)
247 /* XXX assume wchar_t as int */
248 if ((uint32_t)wc <= 0x7F) {
251 } else if ((uint32_t)wc <= 0xFFFF) {
252 l = (wc >> 8) & 0xFF;
254 if (ishangul(l, t) || isuda(l, t)) {
258 if (l >= 0xD9 && l <= 0xDE) {
261 } else if (l >= 0xE0 && l <= 0xF9) {
267 if (t >= 0x31 && t <= 0x7E)
269 else if (t >= 0x91 && t <= 0xFE)
273 l = (linear / 94) + m;
274 t = (linear % 94) + 0x21;
275 *idx = (_index_t)((l << 8) | t);
285 _citrus_JOHAB_stdenc_cstowc(_JOHABEncodingInfo * __restrict ei __unused,
286 wchar_t * __restrict wc, _csid_t csid, _index_t idx)
288 int m, n, l, linear, t;
296 if (idx >= 0x2121 && idx <= 0x2C71) {
299 } else if (idx >= 0x4A21 && idx <= 0x7D7E) {
304 l = ((idx >> 8) & 0xFF) - n;
305 t = (idx & 0xFF) - 0x21;
306 linear = (l * 94) + t;
307 l = (linear / 188) + m;
309 t += (t <= 0x4D) ? 0x31 : 0x43;
319 _citrus_JOHAB_stdenc_get_state_desc_generic(_JOHABEncodingInfo * __restrict ei __unused,
320 _JOHABState * __restrict psenc, int * __restrict rstate)
323 *rstate = (psenc->chlen == 0) ? _STDENC_SDGEN_INITIAL :
324 _STDENC_SDGEN_INCOMPLETE_CHAR;
328 /* ----------------------------------------------------------------------
329 * public interface for stdenc
332 _CITRUS_STDENC_DECLS(JOHAB);
333 _CITRUS_STDENC_DEF_OPS(JOHAB);
335 #include "citrus_stdenc_template.h"