mskanji.c revision 172619
1105068Sphk/* 2105068Sphk * Copyright (c) 2002-2004 Tim J. Robbins. All rights reserved. 3105068Sphk * 4105068Sphk * ja_JP.SJIS locale table for BSD4.4/rune 5105068Sphk * version 1.0 6105068Sphk * (C) Sin'ichiro MIYATANI / Phase One, Inc 7105068Sphk * May 12, 1995 8105068Sphk * 9105068Sphk * Redistribution and use in source and binary forms, with or without 10105068Sphk * modification, are permitted provided that the following conditions 11105068Sphk * are met: 12105068Sphk * 1. Redistributions of source code must retain the above copyright 13105068Sphk * notice, this list of conditions and the following disclaimer. 14105068Sphk * 2. Redistributions in binary form must reproduce the above copyright 15105068Sphk * notice, this list of conditions and the following disclaimer in the 16105068Sphk * documentation and/or other materials provided with the distribution. 17105068Sphk * 3. All advertising materials mentioning features or use of this software 18105068Sphk * must display the following acknowledgement: 19105068Sphk * This product includes software developed by Phase One, Inc. 20105068Sphk * 4. The name of Phase One, Inc. may be used to endorse or promote products 21105068Sphk * derived from this software without specific prior written permission. 22105068Sphk * 23105068Sphk * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 24105068Sphk * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25105068Sphk * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26105068Sphk * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 27105068Sphk * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28105068Sphk * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29105068Sphk * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30105068Sphk * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31105068Sphk * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32105068Sphk * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33105068Sphk * SUCH DAMAGE. 34105068Sphk */ 35105068Sphk 36116196Sobrien#if defined(LIBC_SCCS) && !defined(lint) 37116196Sobrienstatic char sccsid[] = "@(#)mskanji.c 1.0 (Phase One) 5/5/95"; 38116196Sobrien#endif /* LIBC_SCCS and not lint */ 39105068Sphk#include <sys/cdefs.h> 40105068Sphk__FBSDID("$FreeBSD: head/lib/libc/locale/mskanji.c 172619 2007-10-13 16:28:22Z ache $"); 41105068Sphk 42105068Sphk#include <sys/types.h> 43105068Sphk#include <errno.h> 44105068Sphk#include <runetype.h> 45105068Sphk#include <stdlib.h> 46105068Sphk#include <string.h> 47105068Sphk#include <wchar.h> 48105068Sphk#include "mblocal.h" 49105068Sphk 50113892Sphkextern int __mb_sb_limit; 51105068Sphk 52105068Sphkstatic size_t _MSKanji_mbrtowc(wchar_t * __restrict, const char * __restrict, 53105068Sphk size_t, mbstate_t * __restrict); 54112511Sphkstatic int _MSKanji_mbsinit(const mbstate_t *); 55112511Sphkstatic size_t _MSKanji_wcrtomb(char * __restrict, wchar_t, 56112511Sphk mbstate_t * __restrict); 57112511Sphk 58105068Sphktypedef struct { 59105068Sphk wchar_t ch; 60112709Sphk} _MSKanjiState; 61112511Sphk 62105068Sphkint 63113892Sphk_MSKanji_init(_RuneLocale *rl) 64113892Sphk{ 65105068Sphk 66105068Sphk __mbrtowc = _MSKanji_mbrtowc; 67112534Sphk __wcrtomb = _MSKanji_wcrtomb; 68126080Sphk __mbsinit = _MSKanji_mbsinit; 69126080Sphk _CurrentRuneLocale = rl; 70112534Sphk __mb_cur_max = 2; 71112534Sphk __mb_sb_limit = 256; 72105068Sphk return (0); 73105068Sphk} 74112534Sphk 75105068Sphkstatic int 76105068Sphk_MSKanji_mbsinit(const mbstate_t *ps) 77105068Sphk{ 78112534Sphk 79112534Sphk return (ps == NULL || ((const _MSKanjiState *)ps)->ch == 0); 80112709Sphk} 81112709Sphk 82112709Sphkstatic size_t 83112709Sphk_MSKanji_mbrtowc(wchar_t * __restrict pwc, const char * __restrict s, size_t n, 84105068Sphk mbstate_t * __restrict ps) 85105068Sphk{ 86112511Sphk _MSKanjiState *ms; 87112511Sphk wchar_t wc; 88112511Sphk 89112511Sphk ms = (_MSKanjiState *)ps; 90112511Sphk 91112511Sphk if ((ms->ch & ~0xFF) != 0) { 92112709Sphk /* Bad conversion state. */ 93113892Sphk errno = EINVAL; 94112511Sphk return ((size_t)-1); 95113892Sphk } 96112511Sphk 97115624Sphk if (s == NULL) { 98115624Sphk s = ""; 99115624Sphk n = 1; 100115624Sphk pwc = NULL; 101115624Sphk } 102115624Sphk 103115624Sphk if (n == 0) 104115624Sphk /* Incomplete multibyte sequence */ 105115624Sphk return ((size_t)-2); 106115949Sphk 107115624Sphk if (ms->ch != 0) { 108115624Sphk if (*s == '\0') { 109115624Sphk errno = EILSEQ; 110115624Sphk return ((size_t)-1); 111115624Sphk } 112115624Sphk wc = (ms->ch << 8) | (*s & 0xFF); 113115624Sphk if (pwc != NULL) 114115624Sphk *pwc = wc; 115112511Sphk ms->ch = 0; 116112511Sphk return (1); 117112511Sphk } 118112511Sphk wc = *s++ & 0xff; 119112511Sphk if ((wc > 0x80 && wc < 0xa0) || (wc >= 0xe0 && wc < 0xfd)) { 120112511Sphk if (n < 2) { 121112511Sphk /* Incomplete multibyte sequence */ 122115624Sphk ms->ch = wc; 123112511Sphk return ((size_t)-2); 124112511Sphk } 125112511Sphk if (*s == '\0') { 126112511Sphk errno = EILSEQ; 127112511Sphk return ((size_t)-1); 128115624Sphk } 129112511Sphk wc = (wc << 8) | (*s++ & 0xff); 130115624Sphk if (pwc != NULL) 131115624Sphk *pwc = wc; 132112511Sphk return (2); 133112511Sphk } else { 134112511Sphk if (pwc != NULL) 135112511Sphk *pwc = wc; 136112511Sphk return (wc == L'\0' ? 0 : 1); 137112511Sphk } 138115624Sphk} 139112709Sphk 140112511Sphkstatic size_t 141115624Sphk_MSKanji_wcrtomb(char * __restrict s, wchar_t wc, mbstate_t * __restrict ps) 142112709Sphk{ 143112511Sphk _MSKanjiState *ms; 144112511Sphk int len, i; 145115624Sphk 146112709Sphk ms = (_MSKanjiState *)ps; 147115624Sphk 148115624Sphk if (ms->ch != 0) { 149115624Sphk errno = EINVAL; 150112709Sphk return ((size_t)-1); 151112709Sphk } 152115624Sphk 153115624Sphk if (s == NULL) 154115624Sphk /* Reset to initial shift state (no-op) */ 155115624Sphk return (1); 156115624Sphk len = (wc > 0x100) ? 2 : 1; 157115624Sphk for (i = len; i-- > 0; ) 158115624Sphk *s++ = wc >> (i << 3); 159115624Sphk return (len); 160115624Sphk} 161112709Sphk