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citrus_mskanji.h
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Editing: citrus_mskanji.c
/* $FreeBSD$ */ /* $NetBSD: citrus_mskanji.c,v 1.13 2008/06/14 16:01:08 tnozaki Exp $ */ /*- * SPDX-License-Identifier: BSD-2-Clause * * 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> #include <sys/types.h> #include <assert.h> #include <errno.h> #include <limits.h> #include <stdbool.h> #include <stddef.h> #include <stdio.h> #include <stdlib.h> #include <string.h> #include <wchar.h> #include "citrus_namespace.h" #include "citrus_types.h" #include "citrus_bcs.h" #include "citrus_module.h" #include "citrus_stdenc.h" #include "citrus_mskanji.h" /* ---------------------------------------------------------------------- * private stuffs used by templates */ typedef struct _MSKanjiState { int chlen; char ch[2]; } _MSKanjiState; typedef struct { int mode; #define MODE_JIS2004 1 } _MSKanjiEncodingInfo; #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 _ENCODING_STATE _MSKanjiState #define _ENCODING_MB_CUR_MAX(_ei_) 2 #define _ENCODING_IS_STATE_DEPENDENT 0 #define _STATE_NEEDS_EXPLICIT_INIT(_ps_) 0 static bool _mskanji1(int c) { return ((c >= 0x81 && c <= 0x9f) || (c >= 0xe0 && c <= 0xfc)); } static bool _mskanji2(int c) { return ((c >= 0x40 && c <= 0x7e) || (c >= 0x80 && c <= 0xfc)); } static __inline void /*ARGSUSED*/ _citrus_MSKanji_init_state(_MSKanjiEncodingInfo * __restrict ei __unused, _MSKanjiState * __restrict s) { s->chlen = 0; } #if 0 static __inline void /*ARGSUSED*/ _citrus_MSKanji_pack_state(_MSKanjiEncodingInfo * __restrict ei __unused, 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 __unused, _MSKanjiState * __restrict s, const void * __restrict pspriv) { memcpy((void *)s, pspriv, sizeof(*s)); } #endif static int /*ARGSUSED*/ _citrus_MSKanji_mbrtowc_priv(_MSKanjiEncodingInfo * __restrict ei, wchar_t * __restrict pwc, char ** __restrict s, size_t n, _MSKanjiState * __restrict psenc, size_t * __restrict nresult) { char *s0; wchar_t wchar; int chlenbak, len; 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; *nresult = wchar ? len - chlenbak : 0; 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 __unused, char * __restrict s, size_t n, wchar_t wc, _MSKanjiState * __restrict psenc __unused, size_t * __restrict nresult) { int ret; /* 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 col, row; int offset; 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) { uint32_t col, row; int offset; 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 __unused, _MSKanjiState * __restrict psenc, int * __restrict rstate) { *rstate = (psenc->chlen == 0) ? _STDENC_SDGEN_INITIAL : _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; p = var; 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 __unused) { } /* ---------------------------------------------------------------------- * public interface for stdenc */ _CITRUS_STDENC_DECLS(MSKanji); _CITRUS_STDENC_DEF_OPS(MSKanji); #include "citrus_stdenc_template.h"
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