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/**********************************************************************
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big5.c - Oniguruma (regular expression library)
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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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* 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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* 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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* 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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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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typedef enum { FAILURE = -2, ACCEPT = -1, S0 = 0, S1 } state_t;
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static const signed char trans[][0x100] = {
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{ /* S0 0 1 2 3 4 5 6 7 8 9 a b c d e f */
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/* 0 */ A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, A,
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/* 1 */ A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, A,
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/* 2 */ A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, A,
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/* 3 */ A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, A,
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/* 4 */ A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, A,
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/* 5 */ A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, A,
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/* 6 */ A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, A,
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/* 7 */ A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, A,
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/* 8 */ F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
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/* 9 */ F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
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/* a */ F, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
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/* b */ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
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/* c */ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
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/* d */ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
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/* e */ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
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/* f */ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, F
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{ /* S1 0 1 2 3 4 5 6 7 8 9 a b c d e f */
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/* 0 */ F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
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/* 1 */ F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
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/* 2 */ F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
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/* 3 */ F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
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/* 4 */ A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, A,
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/* 5 */ A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, A,
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/* 6 */ A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, A,
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/* 7 */ A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, F,
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/* 8 */ F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
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/* 9 */ F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
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/* a */ F, A, A, A, A, A, A, A, A, A, A, A, A, A, A, A,
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/* b */ A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, A,
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/* c */ A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, A,
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/* d */ A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, A,
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/* e */ A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, A,
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/* f */ A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, F
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big5_mbc_enc_len(const UChar* p, const UChar* e, OnigEncoding enc ARG_UNUSED)
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state_t s = trans[0][firstbyte];
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return s == ACCEPT ? ONIGENC_CONSTRUCT_MBCLEN_CHARFOUND(n) : \
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ONIGENC_CONSTRUCT_MBCLEN_INVALID()
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if (s < 0) RETURN(1);
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if (p == e) return ONIGENC_CONSTRUCT_MBCLEN_NEEDMORE(EncLen_BIG5[firstbyte]-1);
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big5_mbc_to_code(const UChar* p, const UChar* end, OnigEncoding enc)
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return onigenc_mbn_mbc_to_code(enc, p, end);
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big5_code_to_mbc(OnigCodePoint code, UChar *buf, OnigEncoding enc)
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return onigenc_mb2_code_to_mbc(enc, code, buf);
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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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return onigenc_mbn_mbc_case_fold(enc, flag,
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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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return onigenc_mbn_is_mbc_ambiguous(enc, flag, pp, end);
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big5_is_code_ctype(OnigCodePoint code, unsigned int ctype, OnigEncoding enc)
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return onigenc_mb2_is_code_ctype(enc, code, ctype);
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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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#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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big5_left_adjust_char_head(const UChar* start, const UChar* s, OnigEncoding enc)
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if (s <= start) return (UChar* )s;
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if (BIG5_ISMB_TRAIL(*p)) {
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if (! BIG5_ISMB_FIRST(*--p)) {
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len = enclen(enc, p, s);
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if (p + len > s) return (UChar* )p;
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return (UChar* )(p + ((s - p) & ~1));
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big5_is_allowed_reverse_match(const UChar* s, const UChar* end ARG_UNUSED, OnigEncoding enc ARG_UNUSED)
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return (BIG5_ISMB_TRAIL(c) ? FALSE : TRUE);
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OnigEncodingDefine(big5, BIG5) = {
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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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onigenc_mb2_code_to_mbclen,
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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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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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ENC_ALIAS("CP950", "BIG5");