mirror of
https://github.com/ruby/ruby.git
synced 2022-11-09 12:17:21 -05:00
c677977267
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@14344 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
274 lines
8.6 KiB
C
274 lines
8.6 KiB
C
/**********************************************************************
|
|
iso8859_1.c - Oniguruma (regular expression library)
|
|
**********************************************************************/
|
|
/*-
|
|
* Copyright (c) 2002-2007 K.Kosako <sndgk393 AT ybb DOT ne DOT jp>
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*/
|
|
|
|
#include "regenc.h"
|
|
|
|
#define ENC_IS_ISO_8859_1_CTYPE(code,ctype) \
|
|
((EncISO_8859_1_CtypeTable[code] & CTYPE_TO_BIT(ctype)) != 0)
|
|
|
|
static const unsigned short EncISO_8859_1_CtypeTable[256] = {
|
|
0x4008, 0x4008, 0x4008, 0x4008, 0x4008, 0x4008, 0x4008, 0x4008,
|
|
0x4008, 0x420c, 0x4209, 0x4208, 0x4208, 0x4208, 0x4008, 0x4008,
|
|
0x4008, 0x4008, 0x4008, 0x4008, 0x4008, 0x4008, 0x4008, 0x4008,
|
|
0x4008, 0x4008, 0x4008, 0x4008, 0x4008, 0x4008, 0x4008, 0x4008,
|
|
0x4284, 0x41a0, 0x41a0, 0x41a0, 0x41a0, 0x41a0, 0x41a0, 0x41a0,
|
|
0x41a0, 0x41a0, 0x41a0, 0x41a0, 0x41a0, 0x41a0, 0x41a0, 0x41a0,
|
|
0x78b0, 0x78b0, 0x78b0, 0x78b0, 0x78b0, 0x78b0, 0x78b0, 0x78b0,
|
|
0x78b0, 0x78b0, 0x41a0, 0x41a0, 0x41a0, 0x41a0, 0x41a0, 0x41a0,
|
|
0x41a0, 0x7ca2, 0x7ca2, 0x7ca2, 0x7ca2, 0x7ca2, 0x7ca2, 0x74a2,
|
|
0x74a2, 0x74a2, 0x74a2, 0x74a2, 0x74a2, 0x74a2, 0x74a2, 0x74a2,
|
|
0x74a2, 0x74a2, 0x74a2, 0x74a2, 0x74a2, 0x74a2, 0x74a2, 0x74a2,
|
|
0x74a2, 0x74a2, 0x74a2, 0x41a0, 0x41a0, 0x41a0, 0x41a0, 0x51a0,
|
|
0x41a0, 0x78e2, 0x78e2, 0x78e2, 0x78e2, 0x78e2, 0x78e2, 0x70e2,
|
|
0x70e2, 0x70e2, 0x70e2, 0x70e2, 0x70e2, 0x70e2, 0x70e2, 0x70e2,
|
|
0x70e2, 0x70e2, 0x70e2, 0x70e2, 0x70e2, 0x70e2, 0x70e2, 0x70e2,
|
|
0x70e2, 0x70e2, 0x70e2, 0x41a0, 0x41a0, 0x41a0, 0x41a0, 0x4008,
|
|
0x0008, 0x0008, 0x0008, 0x0008, 0x0008, 0x0008, 0x0008, 0x0008,
|
|
0x0008, 0x0008, 0x0008, 0x0008, 0x0008, 0x0008, 0x0008, 0x0008,
|
|
0x0008, 0x0008, 0x0008, 0x0008, 0x0008, 0x0008, 0x0008, 0x0008,
|
|
0x0008, 0x0008, 0x0008, 0x0008, 0x0008, 0x0008, 0x0008, 0x0008,
|
|
0x0284, 0x01a0, 0x00a0, 0x00a0, 0x00a0, 0x00a0, 0x00a0, 0x00a0,
|
|
0x00a0, 0x00a0, 0x30e2, 0x01a0, 0x00a0, 0x01a0, 0x00a0, 0x00a0,
|
|
0x00a0, 0x00a0, 0x10a0, 0x10a0, 0x00a0, 0x30e2, 0x00a0, 0x01a0,
|
|
0x00a0, 0x10a0, 0x30e2, 0x01a0, 0x10a0, 0x10a0, 0x10a0, 0x01a0,
|
|
0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2,
|
|
0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2,
|
|
0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x00a0,
|
|
0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x30e2,
|
|
0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2,
|
|
0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2,
|
|
0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x00a0,
|
|
0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2
|
|
};
|
|
|
|
static const OnigPairCaseFoldCodes CaseFoldMap[] = {
|
|
{ 0xc0, 0xe0 },
|
|
{ 0xc1, 0xe1 },
|
|
{ 0xc2, 0xe2 },
|
|
{ 0xc3, 0xe3 },
|
|
{ 0xc4, 0xe4 },
|
|
{ 0xc5, 0xe5 },
|
|
{ 0xc6, 0xe6 },
|
|
{ 0xc7, 0xe7 },
|
|
{ 0xc8, 0xe8 },
|
|
{ 0xc9, 0xe9 },
|
|
{ 0xca, 0xea },
|
|
{ 0xcb, 0xeb },
|
|
{ 0xcc, 0xec },
|
|
{ 0xcd, 0xed },
|
|
{ 0xce, 0xee },
|
|
{ 0xcf, 0xef },
|
|
|
|
{ 0xd0, 0xf0 },
|
|
{ 0xd1, 0xf1 },
|
|
{ 0xd2, 0xf2 },
|
|
{ 0xd3, 0xf3 },
|
|
{ 0xd4, 0xf4 },
|
|
{ 0xd5, 0xf5 },
|
|
{ 0xd6, 0xf6 },
|
|
{ 0xd8, 0xf8 },
|
|
{ 0xd9, 0xf9 },
|
|
{ 0xda, 0xfa },
|
|
{ 0xdb, 0xfb },
|
|
{ 0xdc, 0xfc },
|
|
{ 0xdd, 0xfd },
|
|
{ 0xde, 0xfe }
|
|
};
|
|
|
|
static int
|
|
apply_all_case_fold(OnigCaseFoldType flag,
|
|
OnigApplyAllCaseFoldFunc f, void* arg,
|
|
OnigEncoding enc)
|
|
{
|
|
return onigenc_apply_all_case_fold_with_map(
|
|
sizeof(CaseFoldMap)/sizeof(OnigPairCaseFoldCodes), CaseFoldMap, 1,
|
|
flag, f, arg);
|
|
}
|
|
|
|
static int
|
|
get_case_fold_codes_by_str(OnigCaseFoldType flag,
|
|
const OnigUChar* p, const OnigUChar* end,
|
|
OnigCaseFoldCodeItem items[],
|
|
OnigEncoding enc)
|
|
{
|
|
if (0x41 <= *p && *p <= 0x5a) {
|
|
items[0].byte_len = 1;
|
|
items[0].code_len = 1;
|
|
items[0].code[0] = (OnigCodePoint )(*p + 0x20);
|
|
if (*p == 0x53 && end > p + 1
|
|
&& (*(p+1) == 0x53 || *(p+1) == 0x73)) { /* SS */
|
|
items[1].byte_len = 2;
|
|
items[1].code_len = 1;
|
|
items[1].code[0] = (OnigCodePoint )0xdf;
|
|
return 2;
|
|
}
|
|
else
|
|
return 1;
|
|
}
|
|
else if (0x61 <= *p && *p <= 0x7a) {
|
|
items[0].byte_len = 1;
|
|
items[0].code_len = 1;
|
|
items[0].code[0] = (OnigCodePoint )(*p - 0x20);
|
|
if (*p == 0x73 && end > p + 1
|
|
&& (*(p+1) == 0x73 || *(p+1) == 0x53)) { /* ss */
|
|
items[1].byte_len = 2;
|
|
items[1].code_len = 1;
|
|
items[1].code[0] = (OnigCodePoint )0xdf;
|
|
return 2;
|
|
}
|
|
else
|
|
return 1;
|
|
}
|
|
else if (0xc0 <= *p && *p <= 0xcf) {
|
|
items[0].byte_len = 1;
|
|
items[0].code_len = 1;
|
|
items[0].code[0] = (OnigCodePoint )(*p + 0x20);
|
|
return 1;
|
|
}
|
|
else if (0xd0 <= *p && *p <= 0xdf) {
|
|
if (*p == 0xdf) {
|
|
items[0].byte_len = 1;
|
|
items[0].code_len = 2;
|
|
items[0].code[0] = (OnigCodePoint )'s';
|
|
items[0].code[1] = (OnigCodePoint )'s';
|
|
|
|
items[1].byte_len = 1;
|
|
items[1].code_len = 2;
|
|
items[1].code[0] = (OnigCodePoint )'S';
|
|
items[1].code[1] = (OnigCodePoint )'S';
|
|
|
|
items[2].byte_len = 1;
|
|
items[2].code_len = 2;
|
|
items[2].code[0] = (OnigCodePoint )'s';
|
|
items[2].code[1] = (OnigCodePoint )'S';
|
|
|
|
items[3].byte_len = 1;
|
|
items[3].code_len = 2;
|
|
items[3].code[0] = (OnigCodePoint )'S';
|
|
items[3].code[1] = (OnigCodePoint )'s';
|
|
|
|
return 4;
|
|
}
|
|
else if (*p != 0xd7) {
|
|
items[0].byte_len = 1;
|
|
items[0].code_len = 1;
|
|
items[0].code[0] = (OnigCodePoint )(*p + 0x20);
|
|
return 1;
|
|
}
|
|
}
|
|
else if (0xe0 <= *p && *p <= 0xef) {
|
|
items[0].byte_len = 1;
|
|
items[0].code_len = 1;
|
|
items[0].code[0] = (OnigCodePoint )(*p - 0x20);
|
|
return 1;
|
|
}
|
|
else if (0xf0 <= *p && *p <= 0xfe) {
|
|
if (*p != 0xf7) {
|
|
items[0].byte_len = 1;
|
|
items[0].code_len = 1;
|
|
items[0].code[0] = (OnigCodePoint )(*p - 0x20);
|
|
return 1;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
mbc_case_fold(OnigCaseFoldType flag, const UChar** pp, const UChar* end,
|
|
UChar* lower, OnigEncoding enc)
|
|
{
|
|
const UChar* p = *pp;
|
|
|
|
if (*p == 0xdf && (flag & INTERNAL_ONIGENC_CASE_FOLD_MULTI_CHAR) != 0) {
|
|
*lower++ = 's';
|
|
*lower = 's';
|
|
(*pp)++;
|
|
return 2;
|
|
}
|
|
|
|
*lower = ONIGENC_ISO_8859_1_TO_LOWER_CASE(*p);
|
|
(*pp)++;
|
|
return 1;
|
|
}
|
|
|
|
#if 0
|
|
static int
|
|
is_mbc_ambiguous(OnigCaseFoldType flag,
|
|
const UChar** pp, const UChar* end)
|
|
{
|
|
int v;
|
|
const UChar* p = *pp;
|
|
|
|
if (*p == 0xdf && (flag & INTERNAL_ONIGENC_CASE_FOLD_MULTI_CHAR) != 0) {
|
|
(*pp)++;
|
|
return TRUE;
|
|
}
|
|
|
|
(*pp)++;
|
|
v = (EncISO_8859_1_CtypeTable[*p] & (BIT_CTYPE_UPPER | BIT_CTYPE_LOWER));
|
|
if ((v | BIT_CTYPE_LOWER) != 0) {
|
|
/* 0xdf, 0xaa, 0xb5, 0xba are lower case letter, but can't convert. */
|
|
if (*p >= 0xaa && *p <= 0xba)
|
|
return FALSE;
|
|
else
|
|
return TRUE;
|
|
}
|
|
|
|
return (v != 0 ? TRUE : FALSE);
|
|
}
|
|
#endif
|
|
|
|
static int
|
|
is_code_ctype(OnigCodePoint code, unsigned int ctype, OnigEncoding enc)
|
|
{
|
|
if (code < 256)
|
|
return ENC_IS_ISO_8859_1_CTYPE(code, ctype);
|
|
else
|
|
return FALSE;
|
|
}
|
|
|
|
OnigEncodingType OnigEncodingISO_8859_1 = {
|
|
onigenc_single_byte_mbc_enc_len,
|
|
"ISO-8859-1", /* name */
|
|
1, /* max enc length */
|
|
1, /* min enc length */
|
|
onigenc_is_mbc_newline_0x0a,
|
|
onigenc_single_byte_mbc_to_code,
|
|
onigenc_single_byte_code_to_mbclen,
|
|
onigenc_single_byte_code_to_mbc,
|
|
mbc_case_fold,
|
|
apply_all_case_fold,
|
|
get_case_fold_codes_by_str,
|
|
onigenc_minimum_property_name_to_ctype,
|
|
is_code_ctype,
|
|
onigenc_not_support_get_ctype_code_range,
|
|
onigenc_single_byte_left_adjust_char_head,
|
|
onigenc_always_true_is_allowed_reverse_match
|
|
};
|