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179 lines
6.9 KiB
C
179 lines
6.9 KiB
C
/**********************************************************************
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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) 2002-2005 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) != 0)
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static unsigned short EncISO_8859_1_CtypeTable[256] = {
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0x2008, 0x2008, 0x2008, 0x2008, 0x2008, 0x2008, 0x2008, 0x2008,
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0x2008, 0x220c, 0x2209, 0x2208, 0x2208, 0x2208, 0x2008, 0x2008,
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0x2008, 0x2008, 0x2008, 0x2008, 0x2008, 0x2008, 0x2008, 0x2008,
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0x2008, 0x2008, 0x2008, 0x2008, 0x2008, 0x2008, 0x2008, 0x2008,
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0x2284, 0x21a0, 0x21a0, 0x21a0, 0x20a0, 0x21a0, 0x21a0, 0x21a0,
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0x21a0, 0x21a0, 0x21a0, 0x20a0, 0x21a0, 0x21a0, 0x21a0, 0x21a0,
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0x38b0, 0x38b0, 0x38b0, 0x38b0, 0x38b0, 0x38b0, 0x38b0, 0x38b0,
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0x38b0, 0x38b0, 0x21a0, 0x21a0, 0x20a0, 0x20a0, 0x20a0, 0x21a0,
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0x21a0, 0x3ca2, 0x3ca2, 0x3ca2, 0x3ca2, 0x3ca2, 0x3ca2, 0x34a2,
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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, 0x21a0, 0x21a0, 0x21a0, 0x20a0, 0x31a0,
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0x20a0, 0x38e2, 0x38e2, 0x38e2, 0x38e2, 0x38e2, 0x38e2, 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, 0x21a0, 0x20a0, 0x21a0, 0x20a0, 0x2008,
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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, 0x10e2, 0x01a0, 0x00a0, 0x01a0, 0x00a0, 0x00a0,
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0x00a0, 0x00a0, 0x10a0, 0x10a0, 0x00a0, 0x10e2, 0x00a0, 0x01a0,
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0x00a0, 0x10a0, 0x10e2, 0x01a0, 0x10a0, 0x10a0, 0x10a0, 0x01a0,
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0x14a2, 0x14a2, 0x14a2, 0x14a2, 0x14a2, 0x14a2, 0x14a2, 0x14a2,
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0x14a2, 0x14a2, 0x14a2, 0x14a2, 0x14a2, 0x14a2, 0x14a2, 0x14a2,
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0x14a2, 0x14a2, 0x14a2, 0x14a2, 0x14a2, 0x14a2, 0x14a2, 0x00a0,
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0x14a2, 0x14a2, 0x14a2, 0x14a2, 0x14a2, 0x14a2, 0x14a2, 0x10e2,
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0x10e2, 0x10e2, 0x10e2, 0x10e2, 0x10e2, 0x10e2, 0x10e2, 0x10e2,
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0x10e2, 0x10e2, 0x10e2, 0x10e2, 0x10e2, 0x10e2, 0x10e2, 0x10e2,
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0x10e2, 0x10e2, 0x10e2, 0x10e2, 0x10e2, 0x10e2, 0x10e2, 0x00a0,
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0x10e2, 0x10e2, 0x10e2, 0x10e2, 0x10e2, 0x10e2, 0x10e2, 0x10e2
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};
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static int
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iso_8859_1_mbc_to_normalize(OnigAmbigType flag, const UChar** pp, const UChar* end, UChar* lower)
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{
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const UChar* p = *pp;
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if (end > p + 1 && (flag & ONIGENC_AMBIGUOUS_MATCH_COMPOUND) != 0) {
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if ((*p == 's' && *(p+1) == 's') ||
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((flag & ONIGENC_AMBIGUOUS_MATCH_ASCII_CASE) != 0 &&
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(*p == 'S' && *(p+1) == 'S'))) {
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*lower = 0xdf;
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(*pp) += 2;
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return 1;
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}
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}
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if (((flag & ONIGENC_AMBIGUOUS_MATCH_ASCII_CASE) != 0 &&
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ONIGENC_IS_MBC_ASCII(p)) ||
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((flag & ONIGENC_AMBIGUOUS_MATCH_NONASCII_CASE) != 0 &&
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!ONIGENC_IS_MBC_ASCII(p))) {
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*lower = ONIGENC_ISO_8859_1_TO_LOWER_CASE(*p);
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}
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else {
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*lower = *p;
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}
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(*pp)++;
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return 1; /* return byte length of converted char to lower */
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}
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static int
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iso_8859_1_is_mbc_ambiguous(OnigAmbigType flag,
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const UChar** pp, const UChar* end)
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{
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const UChar* p = *pp;
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if ((flag & ONIGENC_AMBIGUOUS_MATCH_COMPOUND) != 0) {
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if (end > p + 1) {
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if ((*p == 's' && *(p+1) == 's') ||
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((flag & ONIGENC_AMBIGUOUS_MATCH_ASCII_CASE) != 0 &&
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(*p == 'S' && *(p+1) == 'S'))) {
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(*pp) += 2;
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return TRUE;
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}
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}
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if (*p == 0xdf) {
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(*pp)++;
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return TRUE;
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}
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}
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(*pp)++;
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if (((flag & ONIGENC_AMBIGUOUS_MATCH_ASCII_CASE) != 0 &&
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ONIGENC_IS_MBC_ASCII(p)) ||
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((flag & ONIGENC_AMBIGUOUS_MATCH_NONASCII_CASE) != 0 &&
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!ONIGENC_IS_MBC_ASCII(p))) {
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int v = (EncISO_8859_1_CtypeTable[*p] &
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(ONIGENC_CTYPE_UPPER | ONIGENC_CTYPE_LOWER));
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if ((v | ONIGENC_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 == 0xdf || (*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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return FALSE;
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}
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static int
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iso_8859_1_is_code_ctype(OnigCodePoint code, unsigned int ctype)
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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_AMBIGUOUS_MATCH_ASCII_CASE |
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ONIGENC_AMBIGUOUS_MATCH_NONASCII_CASE |
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ONIGENC_AMBIGUOUS_MATCH_COMPOUND),
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{
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(OnigCodePoint )'\\' /* esc */
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, (OnigCodePoint )ONIG_INEFFECTIVE_META_CHAR /* anychar '.' */
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, (OnigCodePoint )ONIG_INEFFECTIVE_META_CHAR /* anytime '*' */
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, (OnigCodePoint )ONIG_INEFFECTIVE_META_CHAR /* zero or one time '?' */
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, (OnigCodePoint )ONIG_INEFFECTIVE_META_CHAR /* one or more time '+' */
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, (OnigCodePoint )ONIG_INEFFECTIVE_META_CHAR /* anychar anytime */
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},
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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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iso_8859_1_mbc_to_normalize,
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iso_8859_1_is_mbc_ambiguous,
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onigenc_iso_8859_1_get_all_pair_ambig_codes,
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onigenc_ess_tsett_get_all_comp_ambig_codes,
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iso_8859_1_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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