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123 lines
3.6 KiB
C
123 lines
3.6 KiB
C
/**********************************************************************
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big5.c - Oniguruma (regular expression library)
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Copyright (C) 2003-2004 K.Kosako (kosako@sofnec.co.jp)
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**********************************************************************/
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#include "regenc.h"
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static OnigCodePoint
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big5_mbc_to_code(UChar* p, UChar* end)
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{
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return onigenc_mbn_mbc_to_code(ONIG_ENCODING_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)
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{
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return onigenc_mb2_code_to_mbc(ONIG_ENCODING_BIG5, code, buf);
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}
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static int
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big5_mbc_to_lower(UChar* p, UChar* lower)
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{
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return onigenc_mbn_mbc_to_lower(ONIG_ENCODING_BIG5, p, lower);
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}
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static int
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big5_code_is_ctype(OnigCodePoint code, unsigned int ctype)
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{
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return onigenc_mb2_code_is_ctype(ONIG_ENCODING_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) (OnigEncodingBIG5.len_table[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(UChar* start, UChar* s)
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{
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UChar *p;
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int len;
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if (s <= start) return 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 = enc_len(ONIG_ENCODING_BIG5, *p);
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if (p + len > s) return p;
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p += len;
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return p + ((s - p) & ~1);
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}
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static int
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big5_is_allowed_reverse_match(UChar* s, UChar* end)
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{
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UChar c = *s;
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return (BIG5_ISMB_TRAIL(c) ? FALSE : TRUE);
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}
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OnigEncodingType OnigEncodingBIG5 = {
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{
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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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"Big5", /* name */
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2, /* max byte length */
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FALSE, /* is_fold_match */
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ONIGENC_CTYPE_SUPPORT_LEVEL_SB, /* ctype_support_level */
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FALSE, /* is continuous sb mb codepoint */
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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_to_lower,
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onigenc_mbn_mbc_is_case_ambig,
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big5_code_is_ctype,
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onigenc_nothing_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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onigenc_nothing_get_all_fold_match_code,
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onigenc_nothing_get_fold_match_info
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};
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