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8f15b8128c
which are not builtin.
* regenc.{c,h} (onigenc_mb2_code_to_mbclen, onigenc_mb4_code_to_mbclen):
fix prototype.
* enc/big5.c, enc/euc_kr.c, enc/euc_tw.c, enc/gb18030.c,
enc/koi8_r.c, enc/windows_1251.c: imported from Oniguruma.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@15026 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
164 lines
5.5 KiB
C
164 lines
5.5 KiB
C
/**********************************************************************
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big5.c - Oniguruma (regular expression library)
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**********************************************************************/
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/*-
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* Copyright (c) 2002-2007 K.Kosako <sndgk393 AT ybb DOT ne DOT jp>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include "regenc.h"
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OnigEncodingDeclare(BIG5);
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static const int EncLen_BIG5[] = {
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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
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1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
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2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
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2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
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2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
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2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
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2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1
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};
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static int
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big5_mbc_enc_len(const UChar* p, const UChar* e, OnigEncoding enc)
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{
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return EncLen_BIG5[*p];
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}
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static OnigCodePoint
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big5_mbc_to_code(const UChar* p, const UChar* end, OnigEncoding enc)
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{
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return onigenc_mbn_mbc_to_code(&OnigEncodingName(BIG5), p, end);
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}
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static int
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big5_code_to_mbc(OnigCodePoint code, UChar *buf, OnigEncoding enc)
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{
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return onigenc_mb2_code_to_mbc(&OnigEncodingName(BIG5), code, buf);
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}
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static int
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big5_mbc_case_fold(OnigCaseFoldType flag, const UChar** pp, const UChar* end,
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UChar* lower, OnigEncoding enc)
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{
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return onigenc_mbn_mbc_case_fold(&OnigEncodingName(BIG5), flag,
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pp, end, lower);
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}
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#if 0
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static int
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big5_is_mbc_ambiguous(OnigCaseFoldType flag,
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const UChar** pp, const UChar* end, OnigEncoding enc)
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{
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return onigenc_mbn_is_mbc_ambiguous(&OnigEncodingName(BIG5), flag, pp, end);
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}
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#endif
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static int
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big5_is_code_ctype(OnigCodePoint code, unsigned int ctype, OnigEncoding enc)
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{
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return onigenc_mb2_is_code_ctype(&OnigEncodingName(BIG5), code, ctype);
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}
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static const char BIG5_CAN_BE_TRAIL_TABLE[256] = {
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0,
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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0
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};
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#define BIG5_ISMB_FIRST(byte) (EncLen_BIG5[byte] > 1)
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#define BIG5_ISMB_TRAIL(byte) BIG5_CAN_BE_TRAIL_TABLE[(byte)]
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static UChar*
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big5_left_adjust_char_head(const UChar* start, const UChar* s, OnigEncoding enc)
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{
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const UChar *p;
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int len;
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if (s <= start) return (UChar* )s;
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p = s;
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if (BIG5_ISMB_TRAIL(*p)) {
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while (p > start) {
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if (! BIG5_ISMB_FIRST(*--p)) {
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p++;
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break;
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}
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}
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}
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len = enclen(&OnigEncodingName(BIG5), p, s);
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if (p + len > s) return (UChar* )p;
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p += len;
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return (UChar* )(p + ((s - p) & ~1));
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}
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static int
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big5_is_allowed_reverse_match(const UChar* s, const UChar* end ARG_UNUSED, OnigEncoding enc)
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{
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const UChar c = *s;
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return (BIG5_ISMB_TRAIL(c) ? FALSE : TRUE);
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}
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OnigEncodingDefine(big5, BIG5) = {
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big5_mbc_enc_len,
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"Big5", /* name */
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2, /* max enc length */
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1, /* min enc length */
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onigenc_is_mbc_newline_0x0a,
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big5_mbc_to_code,
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onigenc_mb2_code_to_mbclen,
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big5_code_to_mbc,
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big5_mbc_case_fold,
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onigenc_ascii_apply_all_case_fold,
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onigenc_ascii_get_case_fold_codes_by_str,
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onigenc_minimum_property_name_to_ctype,
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big5_is_code_ctype,
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onigenc_not_support_get_ctype_code_range,
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big5_left_adjust_char_head,
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big5_is_allowed_reverse_match
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};
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