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/**********************************************************************
big5.c - Oniguruma (regular expression library)
Copyright (C) 2003-2004 K.Kosako (kosako@sofnec.co.jp)
**********************************************************************/
#include "regenc.h"
static OnigCodePoint
big5_mbc_to_code(UChar* p, UChar* end)
{
return onigenc_mbn_mbc_to_code(ONIG_ENCODING_BIG5, p, end);
}
static int
big5_code_to_mbc(OnigCodePoint code, UChar *buf)
{
return onigenc_mb2_code_to_mbc(ONIG_ENCODING_BIG5, code, buf);
}
static int
big5_mbc_to_lower(UChar* p, UChar* lower)
{
return onigenc_mbn_mbc_to_lower(ONIG_ENCODING_BIG5, p, lower);
}
static int
big5_code_is_ctype(OnigCodePoint code, unsigned int ctype)
{
return onigenc_mb2_code_is_ctype(ONIG_ENCODING_BIG5, code, ctype);
}
static const char BIG5_CAN_BE_TRAIL_TABLE[256] = {
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0
};
#define BIG5_ISMB_FIRST(byte) (OnigEncodingBIG5.len_table[byte] > 1)
#define BIG5_ISMB_TRAIL(byte) BIG5_CAN_BE_TRAIL_TABLE[(byte)]
static UChar*
big5_left_adjust_char_head(UChar* start, UChar* s)
{
UChar *p;
int len;
if (s <= start) return s;
p = s;
if (BIG5_ISMB_TRAIL(*p)) {
while (p > start) {
if (! BIG5_ISMB_FIRST(*--p)) {
p++;
break;
}
}
}
len = enc_len(ONIG_ENCODING_BIG5, *p);
if (p + len > s) return p;
p += len;
return p + ((s - p) & ~1);
}
static int
big5_is_allowed_reverse_match(UChar* s, UChar* end)
{
UChar c = *s;
return (BIG5_ISMB_TRAIL(c) ? FALSE : TRUE);
}
OnigEncodingType OnigEncodingBIG5 = {
{
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1
},
"Big5", /* name */
2, /* max byte length */
FALSE, /* is_fold_match */
ONIGENC_CTYPE_SUPPORT_LEVEL_SB, /* ctype_support_level */
FALSE, /* is continuous sb mb codepoint */
big5_mbc_to_code,
onigenc_mb2_code_to_mbclen,
big5_code_to_mbc,
big5_mbc_to_lower,
onigenc_mbn_mbc_is_case_ambig,
big5_code_is_ctype,
onigenc_nothing_get_ctype_code_range,
big5_left_adjust_char_head,
big5_is_allowed_reverse_match,
onigenc_nothing_get_all_fold_match_code,
onigenc_nothing_get_fold_match_info
};
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