зеркало из https://github.com/github/ruby.git
450 строки
17 KiB
C
450 строки
17 KiB
C
/**********************************************************************
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utf_8.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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#include "encindex.h"
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#ifndef ENCINDEX_UTF_8
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#define ENCINDEX_UTF_8 0
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#endif
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#define USE_INVALID_CODE_SCHEME
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#ifdef USE_INVALID_CODE_SCHEME
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/* virtual codepoint values for invalid encoding byte 0xfe and 0xff */
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#define INVALID_CODE_FE 0xfffffffe
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#define INVALID_CODE_FF 0xffffffff
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#endif
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#define VALID_CODE_LIMIT 0x0010ffff
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#define utf8_islead(c) ((UChar )((c) & 0xc0) != 0x80)
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static const int EncLen_UTF8[] = {
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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
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2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
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2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
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3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
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4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1
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};
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typedef enum {
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FAILURE = -2,
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ACCEPT,
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S0, S1, S2, S3,
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S4, S5, S6, S7
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} state_t;
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#define A ACCEPT
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#define F FAILURE
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static const signed char trans[][0x100] = {
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{ /* S0 0 1 2 3 4 5 6 7 8 9 a b c d e f */
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/* 0 */ A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, A,
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/* 1 */ A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, A,
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/* 2 */ A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, A,
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/* 3 */ A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, A,
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/* 4 */ A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, A,
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/* 5 */ A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, A,
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/* 6 */ A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, A,
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/* 7 */ A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, A,
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/* 8 */ F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
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/* 9 */ F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
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/* a */ F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
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/* b */ F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
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/* c */ F, F, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
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/* d */ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
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/* e */ 2, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 4, 3, 3,
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/* f */ 5, 6, 6, 6, 7, F, F, F, F, F, F, F, F, F, F, F
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},
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{ /* S1 0 1 2 3 4 5 6 7 8 9 a b c d e f */
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/* 0 */ F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
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/* 1 */ F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
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/* 2 */ F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
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/* 3 */ F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
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/* 4 */ F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
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/* 5 */ F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
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/* 6 */ F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
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/* 7 */ F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
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/* 8 */ A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, A,
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/* 9 */ A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, A,
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/* a */ A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, A,
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/* b */ A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, A,
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/* c */ F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
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/* d */ F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
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/* e */ F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
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/* f */ F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F
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},
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{ /* S2 0 1 2 3 4 5 6 7 8 9 a b c d e f */
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/* 0 */ F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
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/* 1 */ F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
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/* 2 */ F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
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/* 3 */ F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
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/* 4 */ F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
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/* 5 */ F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
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/* 6 */ F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
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/* 7 */ F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
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/* 8 */ F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
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/* 9 */ F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
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/* a */ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
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/* b */ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
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/* c */ F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
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/* d */ F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
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/* e */ F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
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/* f */ F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F
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},
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{ /* S3 0 1 2 3 4 5 6 7 8 9 a b c d e f */
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/* 0 */ F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
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/* 1 */ F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
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/* 2 */ F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
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/* 3 */ F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
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/* 4 */ F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
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/* 5 */ F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
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/* 6 */ F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
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/* 7 */ F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
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/* 8 */ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
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/* 9 */ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
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/* a */ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
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/* b */ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
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/* c */ F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
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/* d */ F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
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/* e */ F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
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/* f */ F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F
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},
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{ /* S4 0 1 2 3 4 5 6 7 8 9 a b c d e f */
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/* 0 */ F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
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/* 1 */ F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
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/* 2 */ F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
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/* 3 */ F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
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/* 4 */ F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
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/* 5 */ F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
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/* 6 */ F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
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/* 7 */ F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
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/* 8 */ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
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/* 9 */ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
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/* a */ F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
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/* b */ F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
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/* c */ F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
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/* d */ F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
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/* e */ F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
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/* f */ F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F
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},
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{ /* S5 0 1 2 3 4 5 6 7 8 9 a b c d e f */
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/* 0 */ F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
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/* 1 */ F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
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/* 2 */ F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
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/* 3 */ F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
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/* 4 */ F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
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/* 5 */ F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
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/* 6 */ F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
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/* 7 */ F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
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/* 8 */ F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
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/* 9 */ 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
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/* a */ 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
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/* b */ 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
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/* c */ F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
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/* d */ F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
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/* e */ F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
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/* f */ F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F
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},
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{ /* S6 0 1 2 3 4 5 6 7 8 9 a b c d e f */
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/* 0 */ F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
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/* 1 */ F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
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/* 2 */ F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
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/* 3 */ F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
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/* 4 */ F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
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/* 5 */ F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
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/* 6 */ F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
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/* 7 */ F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
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/* 8 */ 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
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/* 9 */ 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
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/* a */ 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
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/* b */ 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
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/* c */ F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
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/* d */ F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
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/* e */ F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
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/* f */ F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F
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},
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{ /* S7 0 1 2 3 4 5 6 7 8 9 a b c d e f */
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/* 0 */ F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
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/* 1 */ F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
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/* 2 */ F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
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/* 3 */ F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
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/* 4 */ F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
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/* 5 */ F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
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/* 6 */ F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
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/* 7 */ F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
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/* 8 */ 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
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/* 9 */ F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
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/* a */ F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
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/* b */ F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
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/* c */ F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
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/* d */ F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
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/* e */ F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F,
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/* f */ F, F, F, F, F, F, F, F, F, F, F, F, F, F, F, F
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},
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};
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#undef A
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#undef F
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static int
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mbc_enc_len(const UChar* p, const UChar* e, OnigEncoding enc ARG_UNUSED)
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{
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int firstbyte = *p++;
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state_t s;
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s = trans[0][firstbyte];
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if (s < 0) return s == ACCEPT ? ONIGENC_CONSTRUCT_MBCLEN_CHARFOUND(1) :
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ONIGENC_CONSTRUCT_MBCLEN_INVALID();
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if (p == e) return ONIGENC_CONSTRUCT_MBCLEN_NEEDMORE(EncLen_UTF8[firstbyte]-1);
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s = trans[s][*p++];
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if (s < 0) return s == ACCEPT ? ONIGENC_CONSTRUCT_MBCLEN_CHARFOUND(2) :
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ONIGENC_CONSTRUCT_MBCLEN_INVALID();
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if (p == e) return ONIGENC_CONSTRUCT_MBCLEN_NEEDMORE(EncLen_UTF8[firstbyte]-2);
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s = trans[s][*p++];
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if (s < 0) return s == ACCEPT ? ONIGENC_CONSTRUCT_MBCLEN_CHARFOUND(3) :
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ONIGENC_CONSTRUCT_MBCLEN_INVALID();
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if (p == e) return ONIGENC_CONSTRUCT_MBCLEN_NEEDMORE(EncLen_UTF8[firstbyte]-3);
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s = trans[s][*p++];
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return s == ACCEPT ? ONIGENC_CONSTRUCT_MBCLEN_CHARFOUND(4) :
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ONIGENC_CONSTRUCT_MBCLEN_INVALID();
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}
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static int
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is_mbc_newline(const UChar* p, const UChar* end, OnigEncoding enc)
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{
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if (p < end) {
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if (*p == 0x0a) return 1;
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#ifdef USE_UNICODE_ALL_LINE_TERMINATORS
|
|
if (*p == 0x0b || *p == 0x0c || *p == 0x0d) return 1;
|
|
if (p + 1 < end) {
|
|
if (*(p+1) == 0x85 && *p == 0xc2) /* U+0085 */
|
|
return 1;
|
|
if (p + 2 < end) {
|
|
if ((*(p+2) == 0xa8 || *(p+2) == 0xa9)
|
|
&& *(p+1) == 0x80 && *p == 0xe2) /* U+2028, U+2029 */
|
|
return 1;
|
|
}
|
|
}
|
|
#endif
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static OnigCodePoint
|
|
mbc_to_code(const UChar* p, const UChar* end, OnigEncoding enc)
|
|
{
|
|
int c, len;
|
|
OnigCodePoint n;
|
|
|
|
len = mbc_enc_len(p, end, enc);
|
|
c = *p++;
|
|
if (len > 1) {
|
|
len--;
|
|
n = c & ((1 << (6 - len)) - 1);
|
|
while (len--) {
|
|
c = *p++;
|
|
n = (n << 6) | (c & ((1 << 6) - 1));
|
|
}
|
|
return n;
|
|
}
|
|
else {
|
|
#ifdef USE_INVALID_CODE_SCHEME
|
|
if (c > 0xfd) {
|
|
return ((c == 0xfe) ? INVALID_CODE_FE : INVALID_CODE_FF);
|
|
}
|
|
#endif
|
|
return (OnigCodePoint )c;
|
|
}
|
|
}
|
|
|
|
static int
|
|
code_to_mbclen(OnigCodePoint code, OnigEncoding enc ARG_UNUSED)
|
|
{
|
|
if ((code & 0xffffff80) == 0) return 1;
|
|
else if ((code & 0xfffff800) == 0) return 2;
|
|
else if ((code & 0xffff0000) == 0) return 3;
|
|
else if (code <= VALID_CODE_LIMIT) return 4;
|
|
#ifdef USE_INVALID_CODE_SCHEME
|
|
else if (code == INVALID_CODE_FE) return 1;
|
|
else if (code == INVALID_CODE_FF) return 1;
|
|
#endif
|
|
else
|
|
return ONIGERR_TOO_BIG_WIDE_CHAR_VALUE;
|
|
}
|
|
|
|
static int
|
|
code_to_mbc(OnigCodePoint code, UChar *buf, OnigEncoding enc ARG_UNUSED)
|
|
{
|
|
#define UTF8_TRAILS(code, shift) (UChar )((((code) >> (shift)) & 0x3f) | 0x80)
|
|
#define UTF8_TRAIL0(code) (UChar )(((code) & 0x3f) | 0x80)
|
|
|
|
if ((code & 0xffffff80) == 0) {
|
|
*buf = (UChar )code;
|
|
return 1;
|
|
}
|
|
else {
|
|
UChar *p = buf;
|
|
|
|
if ((code & 0xfffff800) == 0) {
|
|
*p++ = (UChar )(((code>>6)& 0x1f) | 0xc0);
|
|
}
|
|
else if ((code & 0xffff0000) == 0) {
|
|
*p++ = (UChar )(((code>>12) & 0x0f) | 0xe0);
|
|
*p++ = UTF8_TRAILS(code, 6);
|
|
}
|
|
else if (code <= VALID_CODE_LIMIT) {
|
|
*p++ = (UChar )(((code>>18) & 0x07) | 0xf0);
|
|
*p++ = UTF8_TRAILS(code, 12);
|
|
*p++ = UTF8_TRAILS(code, 6);
|
|
}
|
|
#ifdef USE_INVALID_CODE_SCHEME
|
|
else if (code == INVALID_CODE_FE) {
|
|
*p = 0xfe;
|
|
return 1;
|
|
}
|
|
else if (code == INVALID_CODE_FF) {
|
|
*p = 0xff;
|
|
return 1;
|
|
}
|
|
#endif
|
|
else {
|
|
return ONIGERR_TOO_BIG_WIDE_CHAR_VALUE;
|
|
}
|
|
|
|
*p++ = UTF8_TRAIL0(code);
|
|
return (int )(p - buf);
|
|
}
|
|
}
|
|
|
|
static int
|
|
mbc_case_fold(OnigCaseFoldType flag, const UChar** pp,
|
|
const UChar* end, UChar* fold, OnigEncoding enc)
|
|
{
|
|
const UChar* p = *pp;
|
|
|
|
if (ONIGENC_IS_MBC_ASCII(p)) {
|
|
#ifdef USE_UNICODE_CASE_FOLD_TURKISH_AZERI
|
|
if ((flag & ONIGENC_CASE_FOLD_TURKISH_AZERI) != 0) {
|
|
if (*p == 0x49) {
|
|
*fold++ = 0xc4;
|
|
*fold = 0xb1;
|
|
(*pp)++;
|
|
return 2;
|
|
}
|
|
}
|
|
#endif
|
|
|
|
*fold = ONIGENC_ASCII_CODE_TO_LOWER_CASE(*p);
|
|
(*pp)++;
|
|
return 1; /* return byte length of converted char to lower */
|
|
}
|
|
else {
|
|
return onigenc_unicode_mbc_case_fold(enc, flag, pp, end, fold);
|
|
}
|
|
}
|
|
|
|
|
|
static int
|
|
get_ctype_code_range(OnigCtype ctype, OnigCodePoint *sb_out,
|
|
const OnigCodePoint* ranges[], OnigEncoding enc ARG_UNUSED)
|
|
{
|
|
*sb_out = 0x80;
|
|
return onigenc_unicode_ctype_code_range(ctype, ranges);
|
|
}
|
|
|
|
|
|
static UChar*
|
|
left_adjust_char_head(const UChar* start, const UChar* s, const UChar* end, OnigEncoding enc ARG_UNUSED)
|
|
{
|
|
const UChar *p;
|
|
|
|
if (s <= start) return (UChar* )s;
|
|
p = s;
|
|
|
|
while (!utf8_islead(*p) && p > start) p--;
|
|
return (UChar* )p;
|
|
}
|
|
|
|
static int
|
|
get_case_fold_codes_by_str(OnigCaseFoldType flag,
|
|
const OnigUChar* p, const OnigUChar* end, OnigCaseFoldCodeItem items[],
|
|
OnigEncoding enc)
|
|
{
|
|
return onigenc_unicode_get_case_fold_codes_by_str(enc, flag, p, end, items);
|
|
}
|
|
|
|
OnigEncodingDefine(utf_8, UTF_8) = {
|
|
mbc_enc_len,
|
|
"UTF-8", /* name */
|
|
6, /* max byte length */
|
|
1, /* min byte length */
|
|
is_mbc_newline,
|
|
mbc_to_code,
|
|
code_to_mbclen,
|
|
code_to_mbc,
|
|
mbc_case_fold,
|
|
onigenc_unicode_apply_all_case_fold,
|
|
get_case_fold_codes_by_str,
|
|
onigenc_unicode_property_name_to_ctype,
|
|
onigenc_unicode_is_code_ctype,
|
|
get_ctype_code_range,
|
|
left_adjust_char_head,
|
|
onigenc_always_true_is_allowed_reverse_match,
|
|
ENCINDEX_UTF_8,
|
|
ONIGENC_FLAG_UNICODE,
|
|
#ifdef ONIG_CASE_MAPPING
|
|
onigenc_unicode_case_map,
|
|
#endif /* ONIG_CASE_MAPPING */
|
|
};
|
|
ENC_ALIAS("CP65001", "UTF-8")
|
|
|
|
/*
|
|
* Name: UTF8-MAC
|
|
* Link: http://developer.apple.com/documentation/MacOSX/Conceptual/BPFileSystem/BPFileSystem.html
|
|
* Link: http://developer.apple.com/qa/qa2001/qa1235.html
|
|
* Link: http://developer.apple.com/jp/qa/qa2001/qa1235.html
|
|
* Link: http://www.gnu.org/software/emacs/NEWS.23.2
|
|
*/
|
|
ENC_REPLICATE("UTF8-MAC", "UTF-8")
|
|
ENC_ALIAS("UTF-8-MAC", "UTF8-MAC")
|
|
ENC_ALIAS("UTF-8-HFS", "UTF8-MAC") /* Emacs 23.2 */
|
|
|