/* $NetBSD: citrus_mskanji.c,v 1.12.12.1 2008/06/23 04:29:31 wrstuden Exp $ */
/*-
* Copyright (c)2002 Citrus Project,
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
/*
* ja_JP.SJIS locale table for BSD4.4/rune
* version 1.0
* (C) Sin'ichiro MIYATANI / Phase One, Inc
* May 12, 1995
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Phase One, Inc.
* 4. The name of Phase One, Inc. may be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <sys/cdefs.h>
#if defined(LIBC_SCCS) && !defined(lint)
__RCSID("$NetBSD: citrus_mskanji.c,v 1.12.12.1 2008/06/23 04:29:31 wrstuden Exp $");
#endif /* LIBC_SCCS and not lint */
#include <assert.h>
#include <errno.h>
#include <string.h>
#include <stdio.h>
#include <stdlib.h>
#include <stddef.h>
#include <wchar.h>
#include <sys/types.h>
#include <limits.h>
#include "citrus_namespace.h"
#include "citrus_types.h"
#include "citrus_bcs.h"
#include "citrus_module.h"
#include "citrus_ctype.h"
#include "citrus_stdenc.h"
#include "citrus_mskanji.h"
/* ----------------------------------------------------------------------
* private stuffs used by templates
*/
typedef struct _MSKanjiState {
char ch[2];
int chlen;
} _MSKanjiState;
typedef struct {
int mode;
#define MODE_JIS2004 1
} _MSKanjiEncodingInfo;
typedef struct {
_MSKanjiEncodingInfo ei;
struct {
/* for future multi-locale facility */
_MSKanjiState s_mblen;
_MSKanjiState s_mbrlen;
_MSKanjiState s_mbrtowc;
_MSKanjiState s_mbtowc;
_MSKanjiState s_mbsrtowcs;
_MSKanjiState s_wcrtomb;
_MSKanjiState s_wcsrtombs;
_MSKanjiState s_wctomb;
} states;
} _MSKanjiCTypeInfo;
#define _CEI_TO_EI(_cei_) (&(_cei_)->ei)
#define _CEI_TO_STATE(_cei_, _func_) (_cei_)->states.s_##_func_
#define _FUNCNAME(m) _citrus_MSKanji_##m
#define _ENCODING_INFO _MSKanjiEncodingInfo
#define _CTYPE_INFO _MSKanjiCTypeInfo
#define _ENCODING_STATE _MSKanjiState
#define _ENCODING_MB_CUR_MAX(_ei_) 2
#define _ENCODING_IS_STATE_DEPENDENT 0
#define _STATE_NEEDS_EXPLICIT_INIT(_ps_) 0
static int
_mskanji1(int c)
{
if ((c >= 0x81 && c <= 0x9f) || (c >= 0xe0 && c <= 0xfc))
return 1;
else
return 0;
}
static int
_mskanji2(int c)
{
if ((c >= 0x40 && c <= 0x7e) || (c >= 0x80 && c <= 0xfc))
return 1;
else
return 0;
}
static __inline void
/*ARGSUSED*/
_citrus_MSKanji_init_state(_MSKanjiEncodingInfo * __restrict ei,
_MSKanjiState * __restrict s)
{
s->chlen = 0;
}
static __inline void
/*ARGSUSED*/
_citrus_MSKanji_pack_state(_MSKanjiEncodingInfo * __restrict ei,
void * __restrict pspriv,
const _MSKanjiState * __restrict s)
{
memcpy(pspriv, (const void *)s, sizeof(*s));
}
static __inline void
/*ARGSUSED*/
_citrus_MSKanji_unpack_state(_MSKanjiEncodingInfo * __restrict ei,
_MSKanjiState * __restrict s,
const void * __restrict pspriv)
{
memcpy((void *)s, pspriv, sizeof(*s));
}
static int
/*ARGSUSED*/
_citrus_MSKanji_mbrtowc_priv(_MSKanjiEncodingInfo * __restrict ei,
wchar_t * __restrict pwc,
const char ** __restrict s, size_t n,
_MSKanjiState * __restrict psenc,
size_t * __restrict nresult)
{
wchar_t wchar;
int len;
int chlenbak;
const char *s0;
_DIAGASSERT(nresult != 0);
_DIAGASSERT(ei != NULL);
_DIAGASSERT(s != NULL);
_DIAGASSERT(psenc != NULL);
s0 = *s;
if (s0 == NULL) {
_citrus_MSKanji_init_state(ei, psenc);
*nresult = 0; /* state independent */
return (0);
}
chlenbak = psenc->chlen;
/* make sure we have the first byte in the buffer */
switch (psenc->chlen) {
case 0:
if (n < 1)
goto restart;
psenc->ch[0] = *s0++;
psenc->chlen = 1;
n--;
break;
case 1:
break;
default:
/* illegal state */
goto encoding_error;
}
len = _mskanji1(psenc->ch[0] & 0xff) ? 2 : 1;
while (psenc->chlen < len) {
if (n < 1)
goto restart;
psenc->ch[psenc->chlen] = *s0++;
psenc->chlen++;
n--;
}
*s = s0;
switch (len) {
case 1:
wchar = psenc->ch[0] & 0xff;
break;
case 2:
if (!_mskanji2(psenc->ch[1] & 0xff))
goto encoding_error;
wchar = ((psenc->ch[0] & 0xff) << 8) | (psenc->ch[1] & 0xff);
break;
default:
/* illegal state */
goto encoding_error;
}
psenc->chlen = 0;
if (pwc)
*pwc = wchar;
if (!wchar)
*nresult = 0;
else
*nresult = len - chlenbak;
return (0);
encoding_error:
psenc->chlen = 0;
*nresult = (size_t)-1;
return (EILSEQ);
restart:
*nresult = (size_t)-2;
*s = s0;
return (0);
}
static int
_citrus_MSKanji_wcrtomb_priv(_MSKanjiEncodingInfo * __restrict ei,
char * __restrict s, size_t n, wchar_t wc,
_MSKanjiState * __restrict psenc,
size_t * __restrict nresult)
{
int ret;
_DIAGASSERT(ei != NULL);
_DIAGASSERT(psenc != NULL);
_DIAGASSERT(s != NULL);
/* check invalid sequence */
if (wc & ~0xffff) {
ret = EILSEQ;
goto err;
}
if (wc & 0xff00) {
if (n < 2) {
ret = E2BIG;
goto err;
}
s[0] = (wc >> 8) & 0xff;
s[1] = wc & 0xff;
if (!_mskanji1(s[0] & 0xff) || !_mskanji2(s[1] & 0xff)) {
ret = EILSEQ;
goto err;
}
*nresult = 2;
return 0;
} else {
if (n < 1) {
ret = E2BIG;
goto err;
}
s[0] = wc & 0xff;
if (_mskanji1(s[0] & 0xff)) {
ret = EILSEQ;
goto err;
}
*nresult = 1;
return 0;
}
err:
*nresult = (size_t)-1;
return ret;
}
static __inline int
/*ARGSUSED*/
_citrus_MSKanji_stdenc_wctocs(_MSKanjiEncodingInfo * __restrict ei,
_csid_t * __restrict csid,
_index_t * __restrict idx, wchar_t wc)
{
_index_t row, col;
int offset;
_DIAGASSERT(csid != NULL && idx != NULL);
if ((_wc_t)wc < 0x80) {
/* ISO-646 */
*csid = 0;
*idx = (_index_t)wc;
} else if ((_wc_t)wc < 0x100) {
/* KANA */
*csid = 1;
*idx = (_index_t)wc & 0x7F;
} else {
/* Kanji (containing Gaiji zone) */
/*
* 94^2 zone (contains a part of Gaiji (0xED40 - 0xEEFC)):
* 0x8140 - 0x817E -> 0x2121 - 0x215F
* 0x8180 - 0x819E -> 0x2160 - 0x217E
* 0x819F - 0x81FC -> 0x2221 - 0x227E
*
* 0x8240 - 0x827E -> 0x2321 - 0x235F
* ...
* 0x9F9F - 0x9FFc -> 0x5E21 - 0x5E7E
*
* 0xE040 - 0xE07E -> 0x5F21 - 0x5F5F
* ...
* 0xEF9F - 0xEFFC -> 0x7E21 - 0x7E7E
*
* extended Gaiji zone:
* 0xF040 - 0xFCFC
*
* JIS X0213-plane2:
* 0xF040 - 0xF09E -> 0x2121 - 0x217E
* 0xF140 - 0xF19E -> 0x2321 - 0x237E
* ...
* 0xF240 - 0xF29E -> 0x2521 - 0x257E
*
* 0xF09F - 0xF0FC -> 0x2821 - 0x287E
* 0xF29F - 0xF2FC -> 0x2C21 - 0x2C7E
* ...
* 0xF44F - 0xF49E -> 0x2F21 - 0x2F7E
*
* 0xF49F - 0xF4FC -> 0x6E21 - 0x6E7E
* ...
* 0xFC9F - 0xFCFC -> 0x7E21 - 0x7E7E
*/
row = ((_wc_t)wc >> 8) & 0xFF;
col = (_wc_t)wc & 0xFF;
if (!_mskanji1(row) || !_mskanji2(col))
return EILSEQ;
if ((ei->mode & MODE_JIS2004) == 0 || row < 0xF0) {
*csid = 2;
offset = 0x81;
} else {
*csid = 3;
if ((_wc_t)wc <= 0xF49E) {
offset = (_wc_t)wc >= 0xF29F ||
((_wc_t)wc >= 0xF09F && (_wc_t)wc <= 0xF0FC)
? 0xED : 0xF0;
} else
offset = 0xCE;
}
row -= offset;
if (row >= 0x5F)
row -= 0x40;
row = row * 2 + 0x21;
col -= 0x1F;
if (col >= 0x61)
col -= 1;
if (col > 0x7E) {
row += 1;
col -= 0x5E;
}
*idx = ((_index_t)row << 8) | col;
}
return 0;
}
static __inline int
/*ARGSUSED*/
_citrus_MSKanji_stdenc_cstowc(_MSKanjiEncodingInfo * __restrict ei,
wchar_t * __restrict wc,
_csid_t csid, _index_t idx)
{
u_int32_t row, col;
int offset;
_DIAGASSERT(wc != NULL);
switch (csid) {
case 0:
/* ISO-646 */
if (idx >= 0x80)
return EILSEQ;
*wc = (wchar_t)idx;
break;
case 1:
/* kana */
if (idx >= 0x80)
return EILSEQ;
*wc = (wchar_t)idx + 0x80;
break;
case 3:
if ((ei->mode & MODE_JIS2004) == 0)
return EILSEQ;
/*FALLTHROUGH*/
case 2:
/* kanji */
row = (idx >> 8);
if (row < 0x21)
return EILSEQ;
if (csid == 3) {
if (row <= 0x2F)
offset = (row == 0x22 || row >= 0x26)
? 0xED : 0xF0;
else if (row >= 0x4D && row <= 0x7E)
offset = 0xCE;
else
return EILSEQ;
} else {
if (row > 0x97)
return EILSEQ;
offset = (row < 0x5F) ? 0x81 : 0xC1;
}
col = idx & 0xFF;
if (col < 0x21 || col > 0x7E)
return EILSEQ;
row -= 0x21; col -= 0x21;
if ((row & 1) == 0) {
col += 0x40;
if (col >= 0x7F)
col += 1;
} else
col += 0x9F;
row = row / 2 + offset;
*wc = ((wchar_t)row << 8) | col;
break;
default:
return EILSEQ;
}
return 0;
}
static __inline int
/*ARGSUSED*/
_citrus_MSKanji_stdenc_get_state_desc_generic(_MSKanjiEncodingInfo * __restrict ei,
_MSKanjiState * __restrict psenc,
int * __restrict rstate)
{
if (psenc->chlen == 0)
*rstate = _STDENC_SDGEN_INITIAL;
else
*rstate = _STDENC_SDGEN_INCOMPLETE_CHAR;
return 0;
}
static int
/*ARGSUSED*/
_citrus_MSKanji_encoding_module_init(_MSKanjiEncodingInfo * __restrict ei,
const void * __restrict var,
size_t lenvar)
{
const char *p;
_DIAGASSERT(ei != NULL);
p = var;
#define MATCH(x, act) \
do { \
if (lenvar >= (sizeof(#x)-1) && \
_bcs_strncasecmp(p, #x, sizeof(#x)-1) == 0) { \
act; \
lenvar -= sizeof(#x)-1; \
p += sizeof(#x)-1; \
} \
} while (/*CONSTCOND*/0)
memset((void *)ei, 0, sizeof(*ei));
while (lenvar > 0) {
switch (_bcs_toupper(*p)) {
case 'J':
MATCH(JIS2004, ei->mode |= MODE_JIS2004);
break;
}
++p;
--lenvar;
}
return 0;
}
static void
_citrus_MSKanji_encoding_module_uninit(_MSKanjiEncodingInfo *ei)
{
}
/* ----------------------------------------------------------------------
* public interface for ctype
*/
_CITRUS_CTYPE_DECLS(MSKanji);
_CITRUS_CTYPE_DEF_OPS(MSKanji);
#include "citrus_ctype_template.h"
/* ----------------------------------------------------------------------
* public interface for stdenc
*/
_CITRUS_STDENC_DECLS(MSKanji);
_CITRUS_STDENC_DEF_OPS(MSKanji);
#include "citrus_stdenc_template.h"
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