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git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@19417 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
596 lines
17 KiB
C
596 lines
17 KiB
C
/**********************************************************************
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gb18030.c - Oniguruma (regular expression library)
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**********************************************************************/
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/*-
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* Copyright (c) 2005-2007 KUBO Takehiro <kubo AT jiubao DOT org>
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* 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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#if 1
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#define DEBUG_GB18030(arg)
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#else
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#define DEBUG_GB18030(arg) printf arg
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#endif
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enum {
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C1, /* one-byte char */
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C2, /* one-byte or second of two-byte char */
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C4, /* one-byte or second or fourth of four-byte char */
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CM /* first of two- or four-byte char or second of two-byte char */
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};
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static const char GB18030_MAP[] = {
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C1, C1, C1, C1, C1, C1, C1, C1, C1, C1, C1, C1, C1, C1, C1, C1,
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C1, C1, C1, C1, C1, C1, C1, C1, C1, C1, C1, C1, C1, C1, C1, C1,
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C1, C1, C1, C1, C1, C1, C1, C1, C1, C1, C1, C1, C1, C1, C1, C1,
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C4, C4, C4, C4, C4, C4, C4, C4, C4, C4, C1, C1, C1, C1, C1, C1,
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C2, C2, C2, C2, C2, C2, C2, C2, C2, C2, C2, C2, C2, C2, C2, C2,
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C2, C2, C2, C2, C2, C2, C2, C2, C2, C2, C2, C2, C2, C2, C2, C2,
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C2, C2, C2, C2, C2, C2, C2, C2, C2, C2, C2, C2, C2, C2, C2, C2,
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C2, C2, C2, C2, C2, C2, C2, C2, C2, C2, C2, C2, C2, C2, C2, C1,
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C2, CM, CM, CM, CM, CM, CM, CM, CM, CM, CM, CM, CM, CM, CM, CM,
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CM, CM, CM, CM, CM, CM, CM, CM, CM, CM, CM, CM, CM, CM, CM, CM,
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CM, CM, CM, CM, CM, CM, CM, CM, CM, CM, CM, CM, CM, CM, CM, CM,
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CM, CM, CM, CM, CM, CM, CM, CM, CM, CM, CM, CM, CM, CM, CM, CM,
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CM, CM, CM, CM, CM, CM, CM, CM, CM, CM, CM, CM, CM, CM, CM, CM,
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CM, CM, CM, CM, CM, CM, CM, CM, CM, CM, CM, CM, CM, CM, CM, CM,
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CM, CM, CM, CM, CM, CM, CM, CM, CM, CM, CM, CM, CM, CM, CM, CM,
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CM, CM, CM, CM, CM, CM, CM, CM, CM, CM, CM, CM, CM, CM, CM, C1
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};
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typedef enum { FAILURE = -2, ACCEPT = -1, S0 = 0, S1, S2, S3 } 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, 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 */ 1, 1, 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 */ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
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/* f */ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 */ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, F, F, F, F, F, F,
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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, 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 */ A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, A,
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/* d */ A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, A,
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/* e */ A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, A,
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/* f */ A, A, A, A, A, A, A, A, A, A, A, A, A, A, A, 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, 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 */ 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
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/* d */ 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
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/* e */ 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
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/* f */ 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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 */ A, A, A, A, A, A, A, A, A, A, 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 */ 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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gb18030_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 = trans[0][firstbyte];
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#define RETURN(n) \
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return s == ACCEPT ? ONIGENC_CONSTRUCT_MBCLEN_CHARFOUND(n) : \
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ONIGENC_CONSTRUCT_MBCLEN_INVALID()
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if (s < 0) RETURN(1);
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if (p == e) return ONIGENC_CONSTRUCT_MBCLEN_NEEDMORE(2-1);
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s = trans[s][*p++];
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if (s < 0) RETURN(2);
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if (p == e) return ONIGENC_CONSTRUCT_MBCLEN_NEEDMORE(4-2);
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s = trans[s][*p++];
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if (s < 0) RETURN(3);
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if (p == e) return ONIGENC_CONSTRUCT_MBCLEN_NEEDMORE(4-3);
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s = trans[s][*p++];
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RETURN(4);
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#undef RETURN
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}
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static OnigCodePoint
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gb18030_mbc_to_code(const UChar* p, const UChar* end, OnigEncoding enc)
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{
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int c, i, len;
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OnigCodePoint n;
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len = enclen(enc, p, end);
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n = (OnigCodePoint )(*p++);
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if (len == 1) return n;
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for (i = 1; i < len; i++) {
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if (p >= end) break;
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c = *p++;
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n <<= 8; n += c;
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}
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return n;
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}
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static int
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gb18030_code_to_mbc(OnigCodePoint code, UChar *buf, OnigEncoding enc)
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{
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return onigenc_mb4_code_to_mbc(enc, code, buf);
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}
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static int
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gb18030_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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return onigenc_mbn_mbc_case_fold(enc, flag,
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pp, end, lower);
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}
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#if 0
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static int
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gb18030_is_mbc_ambiguous(OnigCaseFoldType flag,
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const UChar** pp, const UChar* end, OnigEncoding enc)
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{
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return onigenc_mbn_is_mbc_ambiguous(enc, flag, pp, end);
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}
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#endif
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static int
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gb18030_is_code_ctype(OnigCodePoint code, unsigned int ctype, OnigEncoding enc)
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{
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return onigenc_mb4_is_code_ctype(enc, code, ctype);
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}
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enum state {
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S_START,
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S_one_C2,
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S_one_C4,
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S_one_CM,
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S_odd_CM_one_CX,
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S_even_CM_one_CX,
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/* CMC4 : pair of "CM C4" */
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S_one_CMC4,
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S_odd_CMC4,
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S_one_C4_odd_CMC4,
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S_even_CMC4,
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S_one_C4_even_CMC4,
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S_odd_CM_odd_CMC4,
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S_even_CM_odd_CMC4,
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S_odd_CM_even_CMC4,
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S_even_CM_even_CMC4,
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/* C4CM : pair of "C4 CM" */
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S_odd_C4CM,
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S_one_CM_odd_C4CM,
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S_even_C4CM,
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S_one_CM_even_C4CM,
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S_even_CM_odd_C4CM,
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S_odd_CM_odd_C4CM,
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S_even_CM_even_C4CM,
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S_odd_CM_even_C4CM
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};
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static UChar*
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gb18030_left_adjust_char_head(const UChar* start, const UChar* s, const UChar* end, OnigEncoding enc)
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{
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const UChar *p;
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enum state state = S_START;
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DEBUG_GB18030(("----------------\n"));
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for (p = s; p >= start; p--) {
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DEBUG_GB18030(("state %d --(%02x)-->\n", state, *p));
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switch (state) {
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case S_START:
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switch (GB18030_MAP[*p]) {
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case C1:
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return (UChar *)s;
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case C2:
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state = S_one_C2; /* C2 */
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break;
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case C4:
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state = S_one_C4; /* C4 */
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break;
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case CM:
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state = S_one_CM; /* CM */
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break;
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}
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break;
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case S_one_C2: /* C2 */
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switch (GB18030_MAP[*p]) {
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case C1:
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case C2:
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case C4:
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return (UChar *)s;
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case CM:
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state = S_odd_CM_one_CX; /* CM C2 */
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break;
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}
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break;
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case S_one_C4: /* C4 */
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switch (GB18030_MAP[*p]) {
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case C1:
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case C2:
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case C4:
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return (UChar *)s;
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case CM:
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state = S_one_CMC4;
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break;
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}
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break;
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case S_one_CM: /* CM */
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switch (GB18030_MAP[*p]) {
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case C1:
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case C2:
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return (UChar *)s;
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case C4:
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state = S_odd_C4CM;
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break;
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case CM:
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state = S_odd_CM_one_CX; /* CM CM */
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break;
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}
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break;
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case S_odd_CM_one_CX: /* CM C2 */ /* CM CM */ /* CM CM CM C4 */
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switch (GB18030_MAP[*p]) {
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case C1:
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case C2:
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case C4:
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return (UChar *)(s - 1);
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case CM:
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state = S_even_CM_one_CX;
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break;
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}
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break;
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case S_even_CM_one_CX: /* CM CM C2 */ /* CM CM CM */ /* CM CM C4 */
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switch (GB18030_MAP[*p]) {
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case C1:
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case C2:
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case C4:
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return (UChar *)s;
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case CM:
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state = S_odd_CM_one_CX;
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break;
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}
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break;
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case S_one_CMC4: /* CM C4 */
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switch (GB18030_MAP[*p]) {
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case C1:
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case C2:
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return (UChar *)(s - 1);
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case C4:
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state = S_one_C4_odd_CMC4; /* C4 CM C4 */
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break;
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case CM:
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state = S_even_CM_one_CX; /* CM CM C4 */
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break;
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}
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break;
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case S_odd_CMC4: /* CM C4 CM C4 CM C4 */
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switch (GB18030_MAP[*p]) {
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case C1:
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case C2:
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return (UChar *)(s - 1);
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case C4:
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state = S_one_C4_odd_CMC4;
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break;
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case CM:
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state = S_odd_CM_odd_CMC4;
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break;
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}
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break;
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case S_one_C4_odd_CMC4: /* C4 CM C4 */
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switch (GB18030_MAP[*p]) {
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case C1:
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case C2:
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case C4:
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return (UChar *)(s - 1);
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case CM:
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state = S_even_CMC4; /* CM C4 CM C4 */
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break;
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}
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break;
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case S_even_CMC4: /* CM C4 CM C4 */
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|
switch (GB18030_MAP[*p]) {
|
|
case C1:
|
|
case C2:
|
|
return (UChar *)(s - 3);
|
|
case C4:
|
|
state = S_one_C4_even_CMC4;
|
|
break;
|
|
case CM:
|
|
state = S_odd_CM_even_CMC4;
|
|
break;
|
|
}
|
|
break;
|
|
case S_one_C4_even_CMC4: /* C4 CM C4 CM C4 */
|
|
switch (GB18030_MAP[*p]) {
|
|
case C1:
|
|
case C2:
|
|
case C4:
|
|
return (UChar *)(s - 3);
|
|
case CM:
|
|
state = S_odd_CMC4;
|
|
break;
|
|
}
|
|
break;
|
|
|
|
case S_odd_CM_odd_CMC4: /* CM CM C4 CM C4 CM C4 */
|
|
switch (GB18030_MAP[*p]) {
|
|
case C1:
|
|
case C2:
|
|
case C4:
|
|
return (UChar *)(s - 3);
|
|
case CM:
|
|
state = S_even_CM_odd_CMC4;
|
|
break;
|
|
}
|
|
break;
|
|
case S_even_CM_odd_CMC4: /* CM CM CM C4 CM C4 CM C4 */
|
|
switch (GB18030_MAP[*p]) {
|
|
case C1:
|
|
case C2:
|
|
case C4:
|
|
return (UChar *)(s - 1);
|
|
case CM:
|
|
state = S_odd_CM_odd_CMC4;
|
|
break;
|
|
}
|
|
break;
|
|
|
|
case S_odd_CM_even_CMC4: /* CM CM C4 CM C4 */
|
|
switch (GB18030_MAP[*p]) {
|
|
case C1:
|
|
case C2:
|
|
case C4:
|
|
return (UChar *)(s - 1);
|
|
case CM:
|
|
state = S_even_CM_even_CMC4;
|
|
break;
|
|
}
|
|
break;
|
|
case S_even_CM_even_CMC4: /* CM CM CM C4 CM C4 */
|
|
switch (GB18030_MAP[*p]) {
|
|
case C1:
|
|
case C2:
|
|
case C4:
|
|
return (UChar *)(s - 3);
|
|
case CM:
|
|
state = S_odd_CM_even_CMC4;
|
|
break;
|
|
}
|
|
break;
|
|
|
|
case S_odd_C4CM: /* C4 CM */ /* C4 CM C4 CM C4 CM*/
|
|
switch (GB18030_MAP[*p]) {
|
|
case C1:
|
|
case C2:
|
|
case C4:
|
|
return (UChar *)s;
|
|
case CM:
|
|
state = S_one_CM_odd_C4CM; /* CM C4 CM */
|
|
break;
|
|
}
|
|
break;
|
|
case S_one_CM_odd_C4CM: /* CM C4 CM */ /* CM C4 CM C4 CM C4 CM */
|
|
switch (GB18030_MAP[*p]) {
|
|
case C1:
|
|
case C2:
|
|
return (UChar *)(s - 2); /* |CM C4 CM */
|
|
case C4:
|
|
state = S_even_C4CM;
|
|
break;
|
|
case CM:
|
|
state = S_even_CM_odd_C4CM;
|
|
break;
|
|
}
|
|
break;
|
|
case S_even_C4CM: /* C4 CM C4 CM */
|
|
switch (GB18030_MAP[*p]) {
|
|
case C1:
|
|
case C2:
|
|
case C4:
|
|
return (UChar *)(s - 2); /* C4|CM C4 CM */
|
|
case CM:
|
|
state = S_one_CM_even_C4CM;
|
|
break;
|
|
}
|
|
break;
|
|
case S_one_CM_even_C4CM: /* CM C4 CM C4 CM */
|
|
switch (GB18030_MAP[*p]) {
|
|
case C1:
|
|
case C2:
|
|
return (UChar *)(s - 0); /*|CM C4 CM C4|CM */
|
|
case C4:
|
|
state = S_odd_C4CM;
|
|
break;
|
|
case CM:
|
|
state = S_even_CM_even_C4CM;
|
|
break;
|
|
}
|
|
break;
|
|
|
|
case S_even_CM_odd_C4CM: /* CM CM C4 CM */
|
|
switch (GB18030_MAP[*p]) {
|
|
case C1:
|
|
case C2:
|
|
case C4:
|
|
return (UChar *)(s - 0); /* |CM CM|C4|CM */
|
|
case CM:
|
|
state = S_odd_CM_odd_C4CM;
|
|
break;
|
|
}
|
|
break;
|
|
case S_odd_CM_odd_C4CM: /* CM CM CM C4 CM */
|
|
switch (GB18030_MAP[*p]) {
|
|
case C1:
|
|
case C2:
|
|
case C4:
|
|
return (UChar *)(s - 2); /* |CM CM|CM C4 CM */
|
|
case CM:
|
|
state = S_even_CM_odd_C4CM;
|
|
break;
|
|
}
|
|
break;
|
|
|
|
case S_even_CM_even_C4CM: /* CM CM C4 CM C4 CM */
|
|
switch (GB18030_MAP[*p]) {
|
|
case C1:
|
|
case C2:
|
|
case C4:
|
|
return (UChar *)(s - 2); /* |CM CM|C4|CM C4 CM */
|
|
case CM:
|
|
state = S_odd_CM_even_C4CM;
|
|
break;
|
|
}
|
|
break;
|
|
case S_odd_CM_even_C4CM: /* CM CM CM C4 CM C4 CM */
|
|
switch (GB18030_MAP[*p]) {
|
|
case C1:
|
|
case C2:
|
|
case C4:
|
|
return (UChar *)(s - 0); /* |CM CM|CM C4 CM C4|CM */
|
|
case CM:
|
|
state = S_even_CM_even_C4CM;
|
|
break;
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
DEBUG_GB18030(("state %d\n", state));
|
|
switch (state) {
|
|
case S_START: return (UChar *)(s - 0);
|
|
case S_one_C2: return (UChar *)(s - 0);
|
|
case S_one_C4: return (UChar *)(s - 0);
|
|
case S_one_CM: return (UChar *)(s - 0);
|
|
|
|
case S_odd_CM_one_CX: return (UChar *)(s - 1);
|
|
case S_even_CM_one_CX: return (UChar *)(s - 0);
|
|
|
|
case S_one_CMC4: return (UChar *)(s - 1);
|
|
case S_odd_CMC4: return (UChar *)(s - 1);
|
|
case S_one_C4_odd_CMC4: return (UChar *)(s - 1);
|
|
case S_even_CMC4: return (UChar *)(s - 3);
|
|
case S_one_C4_even_CMC4: return (UChar *)(s - 3);
|
|
|
|
case S_odd_CM_odd_CMC4: return (UChar *)(s - 3);
|
|
case S_even_CM_odd_CMC4: return (UChar *)(s - 1);
|
|
|
|
case S_odd_CM_even_CMC4: return (UChar *)(s - 1);
|
|
case S_even_CM_even_CMC4: return (UChar *)(s - 3);
|
|
|
|
case S_odd_C4CM: return (UChar *)(s - 0);
|
|
case S_one_CM_odd_C4CM: return (UChar *)(s - 2);
|
|
case S_even_C4CM: return (UChar *)(s - 2);
|
|
case S_one_CM_even_C4CM: return (UChar *)(s - 0);
|
|
|
|
case S_even_CM_odd_C4CM: return (UChar *)(s - 0);
|
|
case S_odd_CM_odd_C4CM: return (UChar *)(s - 2);
|
|
case S_even_CM_even_C4CM: return (UChar *)(s - 2);
|
|
case S_odd_CM_even_C4CM: return (UChar *)(s - 0);
|
|
}
|
|
|
|
return (UChar* )s; /* never come here. (escape warning) */
|
|
}
|
|
|
|
static int
|
|
gb18030_is_allowed_reverse_match(const UChar* s, const UChar* end ARG_UNUSED, OnigEncoding enc ARG_UNUSED)
|
|
{
|
|
return GB18030_MAP[*s] == C1 ? TRUE : FALSE;
|
|
}
|
|
|
|
OnigEncodingDefine(gb18030, GB18030) = {
|
|
gb18030_mbc_enc_len,
|
|
"GB18030", /* name */
|
|
4, /* max enc length */
|
|
1, /* min enc length */
|
|
onigenc_is_mbc_newline_0x0a,
|
|
gb18030_mbc_to_code,
|
|
onigenc_mb4_code_to_mbclen,
|
|
gb18030_code_to_mbc,
|
|
gb18030_mbc_case_fold,
|
|
onigenc_ascii_apply_all_case_fold,
|
|
onigenc_ascii_get_case_fold_codes_by_str,
|
|
onigenc_minimum_property_name_to_ctype,
|
|
gb18030_is_code_ctype,
|
|
onigenc_not_support_get_ctype_code_range,
|
|
gb18030_left_adjust_char_head,
|
|
gb18030_is_allowed_reverse_match
|
|
};
|
|
|