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More strict for Big5 series.

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* enc/big5.c (EncLen_Big5): back to original Big5 table.
  (EncLen_Big5_HKSCS): for Big5-HKSCS.
  (trans): add the lead byte table for Big5-HKSCS.
  (big5_mbc_enc_len): abstract function for Big5 series.
  (big5_mbc_enc_len): for Big5.
  (big5_hkscs_mbc_enc_len): for Big5-HKSCS.
  (BIG5_HKSCS_P): added.
  (BIG5_ISMB_FIRST): add routine for Big5-HKSCS.
  (big5_hkscs): add for Big5-HKSCS.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@24384 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
naruse 2009-08-04 00:51:22 +00:00
parent b3d7273dc1
commit 8c658137d9
2 changed files with 86 additions and 5 deletions
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12
ChangeLog
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@ -1,3 +1,15 @@
Tue Aug 4 09:41:11 2009 NARUSE, Yui <naruse@ruby-lang.org>
* enc/big5.c (EncLen_Big5): back to original Big5 table.
(EncLen_Big5_HKSCS): for Big5-HKSCS.
(trans): add the lead byte table for Big5-HKSCS.
(big5_mbc_enc_len): abstract function for Big5 series.
(big5_mbc_enc_len): for Big5.
(big5_hkscs_mbc_enc_len): for Big5-HKSCS.
(BIG5_HKSCS_P): added.
(BIG5_ISMB_FIRST): add routine for Big5-HKSCS.
(big5_hkscs): add for Big5-HKSCS.
Tue Aug 4 09:33:54 2009 NARUSE, Yui <naruse@ruby-lang.org>
* encoding.c (rb_enc_set_base): Add for setting base encoding

79
enc/big5.c
View file

@ -30,6 +30,24 @@
#include "regenc.h"
static const int EncLen_BIG5[] = {
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1, 1, 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
};
static const int EncLen_BIG5_HKSCS[] = {
/* LEN 0 1 2 3 4 5 6 7 8 9 A B C D E F */
/* 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,
@ -88,26 +106,56 @@ static const signed char trans[][0x100] = {
/* d */ A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, A,
/* e */ A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, A,
/* f */ A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, F
},
{ /* S2 0 1 2 3 4 5 6 7 8 9 a b c d e f */
/* 0 */ A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, A,
/* 1 */ A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, A,
/* 2 */ A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, A,
/* 3 */ A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, A,
/* 4 */ A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, A,
/* 5 */ A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, A,
/* 6 */ A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, A,
/* 7 */ A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, A,
/* 8 */ F, F, F, F, F, F, F, 1, 1, 1, 1, 1, 1, 1, 1, 1,
/* 9 */ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
/* a */ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
/* b */ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
/* c */ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
/* d */ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
/* e */ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
/* f */ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, F
}
};
#undef A
#undef F
static int
big5_mbc_enc_len(const UChar* p, const UChar* e, OnigEncoding enc ARG_UNUSED)
big5_mbc_enc_len0(const UChar* p, const UChar* e, int tridx, const int tbl[])
{
int firstbyte = *p++;
state_t s = trans[0][firstbyte];
state_t s = trans[tridx][firstbyte];
#define RETURN(n) \
return s == ACCEPT ? ONIGENC_CONSTRUCT_MBCLEN_CHARFOUND(n) : \
ONIGENC_CONSTRUCT_MBCLEN_INVALID()
if (s < 0) RETURN(1);
if (p == e) return ONIGENC_CONSTRUCT_MBCLEN_NEEDMORE(EncLen_BIG5[firstbyte]-1);
if (p == e) return ONIGENC_CONSTRUCT_MBCLEN_NEEDMORE(tbl[firstbyte]-1);
s = trans[s][*p++];
RETURN(2);
#undef RETURN
}
static int
big5_mbc_enc_len(const UChar* p, const UChar* e, OnigEncoding enc ARG_UNUSED)
{
return big5_mbc_enc_len0(p, e, 0, EncLen_BIG5);
}
static int
big5_hkscs_mbc_enc_len(const UChar* p, const UChar* e, OnigEncoding enc ARG_UNUSED)
{
return big5_mbc_enc_len0(p, e, 2, EncLen_BIG5_HKSCS);
}
static OnigCodePoint
big5_mbc_to_code(const UChar* p, const UChar* end, OnigEncoding enc)
{
@ -162,7 +210,11 @@ static const char BIG5_CAN_BE_TRAIL_TABLE[256] = {
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0
};
#define BIG5_ISMB_FIRST(byte) (EncLen_BIG5[byte] > 1)
#define BIG5_HKSCS_P(enc) ((enc)->precise_mbc_enc_len == big5_hkscs_mbc_enc_len)
#define BIG5_ISMB_FIRST(byte) ( \
BIG5_HKSCS_P(enc) ? EncLen_BIG5_HKSCS[byte] > 1 : \
EncLen_BIG5[byte] > 1 \
)
#define BIG5_ISMB_TRAIL(byte) BIG5_CAN_BE_TRAIL_TABLE[(byte)]
static UChar*
@ -229,5 +281,22 @@ ENC_ALIAS("CP950", "Big5")
* Source: See (http://www.iana.org/assignments/charset-reg/Big5-HKSCS)
* Alias: None
*/
ENC_REPLICATE("Big5-HKSCS", "Big5")
OnigEncodingDefine(big5_hkscs, BIG5_HKSCS) = {
big5_hkscs_mbc_enc_len,
"Big5-HKSCS", /* name */
2, /* max enc length */
1, /* min enc length */
onigenc_is_mbc_newline_0x0a,
big5_mbc_to_code,
onigenc_mb2_code_to_mbclen,
big5_code_to_mbc,
big5_mbc_case_fold,
onigenc_ascii_apply_all_case_fold,
onigenc_ascii_get_case_fold_codes_by_str,
onigenc_minimum_property_name_to_ctype,
big5_is_code_ctype,
onigenc_not_support_get_ctype_code_range,
big5_left_adjust_char_head,
big5_is_allowed_reverse_match
};
ENC_ALIAS("CP951", "Big5-HKSCS")