1 /* $FreeBSD: head/lib/libiconv_modules/EUCTW/citrus_euctw.c 281550 2015-04-15 09:09:20Z tijl $ */
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
));
142 _citrus_EUCTW_pack_state(_EUCTWEncodingInfo
* __restrict ei __unused
,
143 void * __restrict pspriv
, const _EUCTWState
* __restrict s
)
146 memcpy(pspriv
, (const void *)s
, sizeof(*s
));
151 _citrus_EUCTW_unpack_state(_EUCTWEncodingInfo
* __restrict ei __unused
,
152 _EUCTWState
* __restrict s
, const void * __restrict pspriv
)
155 memcpy((void *)s
, pspriv
, sizeof(*s
));
161 _citrus_EUCTW_encoding_module_init(_EUCTWEncodingInfo
* __restrict ei
,
162 const void * __restrict var __unused
, size_t lenvar __unused
)
165 memset((void *)ei
, 0, sizeof(*ei
));
172 _citrus_EUCTW_encoding_module_uninit(_EUCTWEncodingInfo
*ei __unused
)
178 _citrus_EUCTW_mbrtowc_priv(_EUCTWEncodingInfo
* __restrict ei
,
179 wchar_t * __restrict pwc
, char ** __restrict s
,
180 size_t n
, _EUCTWState
* __restrict psenc
, size_t * __restrict nresult
)
189 _citrus_EUCTW_init_state(ei
, psenc
);
190 *nresult
= 0; /* state independent */
194 chlenbak
= psenc
->chlen
;
196 /* make sure we have the first byte in the buffer */
197 switch (psenc
->chlen
) {
201 psenc
->ch
[0] = *s0
++;
213 c
= _citrus_EUCTW_count(cs
= _citrus_EUCTW_cs(psenc
->ch
[0] & 0xff));
216 while (psenc
->chlen
< c
) {
219 psenc
->ch
[psenc
->chlen
] = *s0
++;
227 if (psenc
->ch
[0] & 0x80)
229 wchar
= psenc
->ch
[0] & 0xff;
232 if (!(psenc
->ch
[0] & 0x80) || !(psenc
->ch
[1] & 0x80))
234 wchar
= ((psenc
->ch
[0] & 0xff) << 8) | (psenc
->ch
[1] & 0xff);
238 if ((unsigned char)psenc
->ch
[1] < 0xa1 ||
239 0xa7 < (unsigned char)psenc
->ch
[1])
241 if (!(psenc
->ch
[2] & 0x80) || !(psenc
->ch
[3] & 0x80))
243 wchar
= ((psenc
->ch
[2] & 0xff) << 8) | (psenc
->ch
[3] & 0xff);
244 wchar
|= ('G' + psenc
->ch
[1] - 0xa1) << 24;
255 *nresult
= wchar
? c
- chlenbak
: 0;
260 *nresult
= (size_t)-1;
265 *nresult
= (size_t)-1;
270 _citrus_EUCTW_wcrtomb_priv(_EUCTWEncodingInfo
* __restrict ei __unused
,
271 char * __restrict s
, size_t n
, wchar_t wc
,
272 _EUCTWState
* __restrict psenc __unused
, size_t * __restrict nresult
)
278 cs
= wc
& 0x7f000080;
282 if ((wc
& 0x007f0000) && !(wc
& 0x00800000))
285 if (clen
== 1 && cs
== 0x00000000) {
293 } else if (clen
== 2 && cs
== ('G' << 24)) {
302 } else if (clen
== 2 && 'H' <= (cs
>> 24) && (cs
>> 24) <= 'M') {
303 /* CNS-11643-[2-7] */
310 *s
++ = (cs
>> 24) - 'H' + 0xa2;
320 *s
++ = (v
>> (i
<< 3)) & 0xff;
326 *nresult
= (size_t)-1;
332 _citrus_EUCTW_stdenc_wctocs(_EUCTWEncodingInfo
* __restrict ei __unused
,
333 _csid_t
* __restrict csid
, _index_t
* __restrict idx
, wchar_t wc
)
336 *csid
= (_csid_t
)(wc
>> 24) & 0xFF;
337 *idx
= (_index_t
)(wc
& 0x7F7F);
344 _citrus_EUCTW_stdenc_cstowc(_EUCTWEncodingInfo
* __restrict ei __unused
,
345 wchar_t * __restrict wc
, _csid_t csid
, _index_t idx
)
349 if ((idx
& ~0x7F) != 0)
353 if (csid
< 'G' || csid
> 'M' || (idx
& ~0x7F7F) != 0)
355 *wc
= (wchar_t)idx
| ((wchar_t)csid
<< 24);
363 _citrus_EUCTW_stdenc_get_state_desc_generic(_EUCTWEncodingInfo
* __restrict ei __unused
,
364 _EUCTWState
* __restrict psenc
, int * __restrict rstate
)
367 *rstate
= (psenc
->chlen
== 0) ? _STDENC_SDGEN_INITIAL
:
368 _STDENC_SDGEN_INCOMPLETE_CHAR
;
372 /* ----------------------------------------------------------------------
373 * public interface for stdenc
376 _CITRUS_STDENC_DECLS(EUCTW
);
377 _CITRUS_STDENC_DEF_OPS(EUCTW
);
379 #include "citrus_stdenc_template.h"