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* enc/iso_8859_{1..16}.c: renamed.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@14355 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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274
enc/iso_8859_1.c
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274
enc/iso_8859_1.c
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/**********************************************************************
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iso8859_1.c - Oniguruma (regular expression library)
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**********************************************************************/
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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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* All rights reserved.
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*
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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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* are met:
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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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*
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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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* SUCH DAMAGE.
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*/
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#include "regenc.h"
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#define ENC_IS_ISO_8859_1_CTYPE(code,ctype) \
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((EncISO_8859_1_CtypeTable[code] & CTYPE_TO_BIT(ctype)) != 0)
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static const unsigned short EncISO_8859_1_CtypeTable[256] = {
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0x4008, 0x4008, 0x4008, 0x4008, 0x4008, 0x4008, 0x4008, 0x4008,
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0x4008, 0x420c, 0x4209, 0x4208, 0x4208, 0x4208, 0x4008, 0x4008,
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0x4008, 0x4008, 0x4008, 0x4008, 0x4008, 0x4008, 0x4008, 0x4008,
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0x4008, 0x4008, 0x4008, 0x4008, 0x4008, 0x4008, 0x4008, 0x4008,
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0x4284, 0x41a0, 0x41a0, 0x41a0, 0x41a0, 0x41a0, 0x41a0, 0x41a0,
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0x41a0, 0x41a0, 0x41a0, 0x41a0, 0x41a0, 0x41a0, 0x41a0, 0x41a0,
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0x78b0, 0x78b0, 0x78b0, 0x78b0, 0x78b0, 0x78b0, 0x78b0, 0x78b0,
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0x78b0, 0x78b0, 0x41a0, 0x41a0, 0x41a0, 0x41a0, 0x41a0, 0x41a0,
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0x41a0, 0x7ca2, 0x7ca2, 0x7ca2, 0x7ca2, 0x7ca2, 0x7ca2, 0x74a2,
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0x74a2, 0x74a2, 0x74a2, 0x74a2, 0x74a2, 0x74a2, 0x74a2, 0x74a2,
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0x74a2, 0x74a2, 0x74a2, 0x74a2, 0x74a2, 0x74a2, 0x74a2, 0x74a2,
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0x74a2, 0x74a2, 0x74a2, 0x41a0, 0x41a0, 0x41a0, 0x41a0, 0x51a0,
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0x41a0, 0x78e2, 0x78e2, 0x78e2, 0x78e2, 0x78e2, 0x78e2, 0x70e2,
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0x70e2, 0x70e2, 0x70e2, 0x70e2, 0x70e2, 0x70e2, 0x70e2, 0x70e2,
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0x70e2, 0x70e2, 0x70e2, 0x70e2, 0x70e2, 0x70e2, 0x70e2, 0x70e2,
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0x70e2, 0x70e2, 0x70e2, 0x41a0, 0x41a0, 0x41a0, 0x41a0, 0x4008,
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0x0008, 0x0008, 0x0008, 0x0008, 0x0008, 0x0008, 0x0008, 0x0008,
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0x0008, 0x0008, 0x0008, 0x0008, 0x0008, 0x0008, 0x0008, 0x0008,
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0x0008, 0x0008, 0x0008, 0x0008, 0x0008, 0x0008, 0x0008, 0x0008,
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0x0008, 0x0008, 0x0008, 0x0008, 0x0008, 0x0008, 0x0008, 0x0008,
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0x0284, 0x01a0, 0x00a0, 0x00a0, 0x00a0, 0x00a0, 0x00a0, 0x00a0,
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0x00a0, 0x00a0, 0x30e2, 0x01a0, 0x00a0, 0x01a0, 0x00a0, 0x00a0,
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0x00a0, 0x00a0, 0x10a0, 0x10a0, 0x00a0, 0x30e2, 0x00a0, 0x01a0,
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0x00a0, 0x10a0, 0x30e2, 0x01a0, 0x10a0, 0x10a0, 0x10a0, 0x01a0,
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0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2,
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0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2,
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0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x00a0,
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0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x30e2,
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0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2,
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0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2,
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0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x00a0,
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0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2
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};
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static const OnigPairCaseFoldCodes CaseFoldMap[] = {
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{ 0xc0, 0xe0 },
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{ 0xc1, 0xe1 },
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{ 0xc2, 0xe2 },
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{ 0xc3, 0xe3 },
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{ 0xc4, 0xe4 },
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{ 0xc5, 0xe5 },
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{ 0xc6, 0xe6 },
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{ 0xc7, 0xe7 },
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{ 0xc8, 0xe8 },
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{ 0xc9, 0xe9 },
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{ 0xca, 0xea },
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{ 0xcb, 0xeb },
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{ 0xcc, 0xec },
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{ 0xcd, 0xed },
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{ 0xce, 0xee },
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{ 0xcf, 0xef },
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{ 0xd0, 0xf0 },
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{ 0xd1, 0xf1 },
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{ 0xd2, 0xf2 },
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{ 0xd3, 0xf3 },
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{ 0xd4, 0xf4 },
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{ 0xd5, 0xf5 },
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{ 0xd6, 0xf6 },
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{ 0xd8, 0xf8 },
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{ 0xd9, 0xf9 },
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{ 0xda, 0xfa },
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{ 0xdb, 0xfb },
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{ 0xdc, 0xfc },
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{ 0xdd, 0xfd },
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{ 0xde, 0xfe }
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};
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static int
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apply_all_case_fold(OnigCaseFoldType flag,
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OnigApplyAllCaseFoldFunc f, void* arg,
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OnigEncoding enc)
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{
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return onigenc_apply_all_case_fold_with_map(
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sizeof(CaseFoldMap)/sizeof(OnigPairCaseFoldCodes), CaseFoldMap, 1,
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flag, f, arg);
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}
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static int
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get_case_fold_codes_by_str(OnigCaseFoldType flag,
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const OnigUChar* p, const OnigUChar* end,
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OnigCaseFoldCodeItem items[],
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OnigEncoding enc)
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{
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if (0x41 <= *p && *p <= 0x5a) {
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items[0].byte_len = 1;
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items[0].code_len = 1;
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items[0].code[0] = (OnigCodePoint )(*p + 0x20);
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if (*p == 0x53 && end > p + 1
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&& (*(p+1) == 0x53 || *(p+1) == 0x73)) { /* SS */
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items[1].byte_len = 2;
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items[1].code_len = 1;
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items[1].code[0] = (OnigCodePoint )0xdf;
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return 2;
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}
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else
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return 1;
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}
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else if (0x61 <= *p && *p <= 0x7a) {
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items[0].byte_len = 1;
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items[0].code_len = 1;
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items[0].code[0] = (OnigCodePoint )(*p - 0x20);
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if (*p == 0x73 && end > p + 1
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&& (*(p+1) == 0x73 || *(p+1) == 0x53)) { /* ss */
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items[1].byte_len = 2;
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items[1].code_len = 1;
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items[1].code[0] = (OnigCodePoint )0xdf;
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return 2;
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}
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else
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return 1;
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}
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else if (0xc0 <= *p && *p <= 0xcf) {
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items[0].byte_len = 1;
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items[0].code_len = 1;
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items[0].code[0] = (OnigCodePoint )(*p + 0x20);
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return 1;
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}
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else if (0xd0 <= *p && *p <= 0xdf) {
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if (*p == 0xdf) {
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items[0].byte_len = 1;
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items[0].code_len = 2;
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items[0].code[0] = (OnigCodePoint )'s';
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items[0].code[1] = (OnigCodePoint )'s';
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items[1].byte_len = 1;
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items[1].code_len = 2;
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items[1].code[0] = (OnigCodePoint )'S';
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items[1].code[1] = (OnigCodePoint )'S';
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items[2].byte_len = 1;
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items[2].code_len = 2;
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items[2].code[0] = (OnigCodePoint )'s';
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items[2].code[1] = (OnigCodePoint )'S';
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items[3].byte_len = 1;
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items[3].code_len = 2;
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items[3].code[0] = (OnigCodePoint )'S';
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items[3].code[1] = (OnigCodePoint )'s';
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return 4;
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}
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else if (*p != 0xd7) {
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items[0].byte_len = 1;
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items[0].code_len = 1;
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items[0].code[0] = (OnigCodePoint )(*p + 0x20);
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return 1;
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}
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}
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else if (0xe0 <= *p && *p <= 0xef) {
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items[0].byte_len = 1;
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items[0].code_len = 1;
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items[0].code[0] = (OnigCodePoint )(*p - 0x20);
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return 1;
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}
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else if (0xf0 <= *p && *p <= 0xfe) {
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if (*p != 0xf7) {
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items[0].byte_len = 1;
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items[0].code_len = 1;
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items[0].code[0] = (OnigCodePoint )(*p - 0x20);
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return 1;
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}
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}
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return 0;
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}
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static int
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mbc_case_fold(OnigCaseFoldType flag, const UChar** pp, const UChar* end,
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UChar* lower, OnigEncoding enc)
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{
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const UChar* p = *pp;
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if (*p == 0xdf && (flag & INTERNAL_ONIGENC_CASE_FOLD_MULTI_CHAR) != 0) {
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*lower++ = 's';
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*lower = 's';
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(*pp)++;
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return 2;
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}
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*lower = ONIGENC_ISO_8859_1_TO_LOWER_CASE(*p);
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(*pp)++;
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return 1;
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}
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#if 0
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static int
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is_mbc_ambiguous(OnigCaseFoldType flag,
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const UChar** pp, const UChar* end)
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{
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int v;
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const UChar* p = *pp;
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if (*p == 0xdf && (flag & INTERNAL_ONIGENC_CASE_FOLD_MULTI_CHAR) != 0) {
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(*pp)++;
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return TRUE;
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}
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(*pp)++;
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v = (EncISO_8859_1_CtypeTable[*p] & (BIT_CTYPE_UPPER | BIT_CTYPE_LOWER));
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if ((v | BIT_CTYPE_LOWER) != 0) {
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/* 0xdf, 0xaa, 0xb5, 0xba are lower case letter, but can't convert. */
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if (*p >= 0xaa && *p <= 0xba)
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return FALSE;
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else
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return TRUE;
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}
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return (v != 0 ? TRUE : FALSE);
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}
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#endif
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static int
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is_code_ctype(OnigCodePoint code, unsigned int ctype, OnigEncoding enc)
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{
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if (code < 256)
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return ENC_IS_ISO_8859_1_CTYPE(code, ctype);
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else
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return FALSE;
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}
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OnigEncodingType OnigEncodingISO_8859_1 = {
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onigenc_single_byte_mbc_enc_len,
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"ISO-8859-1", /* name */
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1, /* 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_single_byte_mbc_to_code,
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onigenc_single_byte_code_to_mbclen,
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onigenc_single_byte_code_to_mbc,
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mbc_case_fold,
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apply_all_case_fold,
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get_case_fold_codes_by_str,
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onigenc_minimum_property_name_to_ctype,
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is_code_ctype,
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onigenc_not_support_get_ctype_code_range,
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onigenc_single_byte_left_adjust_char_head,
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onigenc_always_true_is_allowed_reverse_match
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};
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