a7b54d1821
After update Oniguruma from v6.9.0 to v6.9.3, two null pointer check should be added. This change bases on the patch https://edk2.groups.io/g/devel/message/45183. Cc: Jian J Wang <jian.j.wang@intel.com> Cc: Hao A Wu <hao.a.wu@intel.com> Signed-off-by: Liming Gao <liming.gao@intel.com> Reviewed-by: Hao A Wu <hao.a.wu@intel.com>
8462 lines
206 KiB
C
8462 lines
206 KiB
C
/**********************************************************************
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regparse.c - Oniguruma (regular expression library)
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**********************************************************************/
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/*-
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* Copyright (c) 2002-2019 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 "regparse.h"
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#include "st.h"
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#ifdef DEBUG_NODE_FREE
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#include <stdio.h>
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#endif
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#define INIT_TAG_NAMES_ALLOC_NUM 5
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#define WARN_BUFSIZE 256
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#define CASE_FOLD_IS_APPLIED_INSIDE_NEGATIVE_CCLASS
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#define IS_ALLOWED_CODE_IN_CALLOUT_NAME(c) \
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((c >= 'A' && c <= 'Z') || (c >= 'a' && c <= 'z') || (c >= '0' && c <= '9') || c == '_' /* || c == '!' */)
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#define IS_ALLOWED_CODE_IN_CALLOUT_TAG_NAME(c) \
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((c >= 'A' && c <= 'Z') || (c >= 'a' && c <= 'z') || (c >= '0' && c <= '9') || c == '_')
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OnigSyntaxType OnigSyntaxOniguruma = {
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(( SYN_GNU_REGEX_OP | ONIG_SYN_OP_QMARK_NON_GREEDY |
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ONIG_SYN_OP_ESC_OCTAL3 | ONIG_SYN_OP_ESC_X_HEX2 |
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ONIG_SYN_OP_ESC_X_BRACE_HEX8 | ONIG_SYN_OP_ESC_O_BRACE_OCTAL |
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ONIG_SYN_OP_ESC_CONTROL_CHARS |
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ONIG_SYN_OP_ESC_C_CONTROL )
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& ~ONIG_SYN_OP_ESC_LTGT_WORD_BEGIN_END )
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, ( ONIG_SYN_OP2_QMARK_GROUP_EFFECT |
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ONIG_SYN_OP2_OPTION_ONIGURUMA |
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ONIG_SYN_OP2_QMARK_LT_NAMED_GROUP | ONIG_SYN_OP2_ESC_K_NAMED_BACKREF |
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ONIG_SYN_OP2_QMARK_LPAREN_IF_ELSE |
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ONIG_SYN_OP2_QMARK_TILDE_ABSENT_GROUP |
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ONIG_SYN_OP2_QMARK_BRACE_CALLOUT_CONTENTS |
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ONIG_SYN_OP2_ASTERISK_CALLOUT_NAME |
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ONIG_SYN_OP2_ESC_X_Y_TEXT_SEGMENT |
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ONIG_SYN_OP2_ESC_CAPITAL_R_GENERAL_NEWLINE |
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ONIG_SYN_OP2_ESC_CAPITAL_N_O_SUPER_DOT |
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ONIG_SYN_OP2_ESC_CAPITAL_K_KEEP |
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ONIG_SYN_OP2_ESC_G_SUBEXP_CALL |
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ONIG_SYN_OP2_ESC_P_BRACE_CHAR_PROPERTY |
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ONIG_SYN_OP2_ESC_P_BRACE_CIRCUMFLEX_NOT |
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ONIG_SYN_OP2_PLUS_POSSESSIVE_REPEAT |
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ONIG_SYN_OP2_CCLASS_SET_OP | ONIG_SYN_OP2_ESC_CAPITAL_C_BAR_CONTROL |
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ONIG_SYN_OP2_ESC_CAPITAL_M_BAR_META | ONIG_SYN_OP2_ESC_V_VTAB |
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ONIG_SYN_OP2_ESC_H_XDIGIT | ONIG_SYN_OP2_ESC_U_HEX4 )
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, ( SYN_GNU_REGEX_BV |
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ONIG_SYN_ALLOW_INTERVAL_LOW_ABBREV |
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ONIG_SYN_DIFFERENT_LEN_ALT_LOOK_BEHIND |
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ONIG_SYN_CAPTURE_ONLY_NAMED_GROUP |
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ONIG_SYN_ALLOW_MULTIPLEX_DEFINITION_NAME |
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ONIG_SYN_FIXED_INTERVAL_IS_GREEDY_ONLY |
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ONIG_SYN_ALLOW_INVALID_CODE_END_OF_RANGE_IN_CC |
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ONIG_SYN_WARN_CC_OP_NOT_ESCAPED |
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ONIG_SYN_WARN_REDUNDANT_NESTED_REPEAT )
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, ONIG_OPTION_NONE
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,
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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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};
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OnigSyntaxType OnigSyntaxRuby = {
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(( SYN_GNU_REGEX_OP | ONIG_SYN_OP_QMARK_NON_GREEDY |
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ONIG_SYN_OP_ESC_OCTAL3 | ONIG_SYN_OP_ESC_X_HEX2 |
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ONIG_SYN_OP_ESC_X_BRACE_HEX8 | ONIG_SYN_OP_ESC_O_BRACE_OCTAL |
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ONIG_SYN_OP_ESC_CONTROL_CHARS |
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ONIG_SYN_OP_ESC_C_CONTROL )
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& ~ONIG_SYN_OP_ESC_LTGT_WORD_BEGIN_END )
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, ( ONIG_SYN_OP2_QMARK_GROUP_EFFECT |
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ONIG_SYN_OP2_OPTION_RUBY |
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ONIG_SYN_OP2_QMARK_LT_NAMED_GROUP | ONIG_SYN_OP2_ESC_K_NAMED_BACKREF |
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ONIG_SYN_OP2_QMARK_LPAREN_IF_ELSE |
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ONIG_SYN_OP2_QMARK_TILDE_ABSENT_GROUP |
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ONIG_SYN_OP2_ESC_X_Y_TEXT_SEGMENT |
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ONIG_SYN_OP2_ESC_CAPITAL_R_GENERAL_NEWLINE |
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ONIG_SYN_OP2_ESC_CAPITAL_K_KEEP |
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ONIG_SYN_OP2_ESC_G_SUBEXP_CALL |
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ONIG_SYN_OP2_ESC_P_BRACE_CHAR_PROPERTY |
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ONIG_SYN_OP2_ESC_P_BRACE_CIRCUMFLEX_NOT |
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ONIG_SYN_OP2_PLUS_POSSESSIVE_REPEAT |
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ONIG_SYN_OP2_CCLASS_SET_OP | ONIG_SYN_OP2_ESC_CAPITAL_C_BAR_CONTROL |
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ONIG_SYN_OP2_ESC_CAPITAL_M_BAR_META | ONIG_SYN_OP2_ESC_V_VTAB |
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ONIG_SYN_OP2_ESC_H_XDIGIT | ONIG_SYN_OP2_ESC_U_HEX4 )
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, ( SYN_GNU_REGEX_BV |
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ONIG_SYN_ALLOW_INTERVAL_LOW_ABBREV |
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ONIG_SYN_DIFFERENT_LEN_ALT_LOOK_BEHIND |
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ONIG_SYN_CAPTURE_ONLY_NAMED_GROUP |
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ONIG_SYN_ALLOW_MULTIPLEX_DEFINITION_NAME |
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ONIG_SYN_FIXED_INTERVAL_IS_GREEDY_ONLY |
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ONIG_SYN_WARN_CC_OP_NOT_ESCAPED |
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ONIG_SYN_WARN_REDUNDANT_NESTED_REPEAT )
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, ONIG_OPTION_NONE
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,
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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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};
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OnigSyntaxType* OnigDefaultSyntax = ONIG_SYNTAX_ONIGURUMA;
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extern void onig_null_warn(const char* s ARG_UNUSED) { }
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#ifdef DEFAULT_WARN_FUNCTION
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static OnigWarnFunc onig_warn = (OnigWarnFunc )DEFAULT_WARN_FUNCTION;
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#else
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static OnigWarnFunc onig_warn = onig_null_warn;
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#endif
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#ifdef DEFAULT_VERB_WARN_FUNCTION
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static OnigWarnFunc onig_verb_warn = (OnigWarnFunc )DEFAULT_VERB_WARN_FUNCTION;
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#else
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static OnigWarnFunc onig_verb_warn = onig_null_warn;
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#endif
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extern void onig_set_warn_func(OnigWarnFunc f)
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{
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onig_warn = f;
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}
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extern void onig_set_verb_warn_func(OnigWarnFunc f)
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{
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onig_verb_warn = f;
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}
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extern void
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onig_warning(const char* s)
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{
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if (onig_warn == onig_null_warn) return ;
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(*onig_warn)(s);
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}
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#define DEFAULT_MAX_CAPTURE_NUM 32767
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static int MaxCaptureNum = DEFAULT_MAX_CAPTURE_NUM;
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extern int
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onig_set_capture_num_limit(int num)
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{
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if (num < 0) return -1;
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MaxCaptureNum = num;
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return 0;
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}
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static unsigned int ParseDepthLimit = DEFAULT_PARSE_DEPTH_LIMIT;
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extern unsigned int
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onig_get_parse_depth_limit(void)
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{
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return ParseDepthLimit;
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}
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extern int
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onig_set_parse_depth_limit(unsigned int depth)
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{
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if (depth == 0)
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ParseDepthLimit = DEFAULT_PARSE_DEPTH_LIMIT;
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else
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ParseDepthLimit = depth;
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return 0;
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}
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static int
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bbuf_init(BBuf* buf, int size)
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{
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if (size <= 0) {
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size = 0;
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buf->p = NULL;
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}
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else {
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buf->p = (UChar* )xmalloc(size);
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if (IS_NULL(buf->p)) return(ONIGERR_MEMORY);
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}
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buf->alloc = size;
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buf->used = 0;
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return 0;
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}
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static void
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bbuf_free(BBuf* bbuf)
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{
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if (IS_NOT_NULL(bbuf)) {
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if (IS_NOT_NULL(bbuf->p)) xfree(bbuf->p);
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xfree(bbuf);
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}
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}
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static int
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bbuf_clone(BBuf** rto, BBuf* from)
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{
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int r;
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BBuf *to;
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*rto = to = (BBuf* )xmalloc(sizeof(BBuf));
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CHECK_NULL_RETURN_MEMERR(to);
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r = BB_INIT(to, from->alloc);
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if (r != 0) {
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xfree(to->p);
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*rto = 0;
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return r;
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}
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to->used = from->used;
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xmemcpy(to->p, from->p, from->used);
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return 0;
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}
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static int backref_rel_to_abs(int rel_no, ScanEnv* env)
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{
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if (rel_no > 0) {
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return env->num_mem + rel_no;
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}
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else {
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return env->num_mem + 1 + rel_no;
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}
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}
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#define OPTION_ON(v,f) ((v) |= (f))
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#define OPTION_OFF(v,f) ((v) &= ~(f))
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#define OPTION_NEGATE(v,f,negative) (negative) ? ((v) &= ~(f)) : ((v) |= (f))
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#define MBCODE_START_POS(enc) \
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(OnigCodePoint )(ONIGENC_MBC_MINLEN(enc) > 1 ? 0 : 0x80)
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#define SET_ALL_MULTI_BYTE_RANGE(enc, pbuf) \
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add_code_range_to_buf(pbuf, MBCODE_START_POS(enc), ~((OnigCodePoint )0))
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#define ADD_ALL_MULTI_BYTE_RANGE(enc, mbuf) do {\
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if (! ONIGENC_IS_SINGLEBYTE(enc)) {\
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r = SET_ALL_MULTI_BYTE_RANGE(enc, &(mbuf));\
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if (r != 0) return r;\
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}\
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} while (0)
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#define BITSET_IS_EMPTY(bs,empty) do {\
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int i;\
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empty = 1;\
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for (i = 0; i < (int )BITSET_SIZE; i++) {\
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if ((bs)[i] != 0) {\
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empty = 0; break;\
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}\
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}\
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} while (0)
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static void
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bitset_set_range(BitSetRef bs, int from, int to)
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{
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int i;
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for (i = from; i <= to && i < SINGLE_BYTE_SIZE; i++) {
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BITSET_SET_BIT(bs, i);
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}
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}
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#if 0
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static void
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bitset_set_all(BitSetRef bs)
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{
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int i;
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for (i = 0; i < BITSET_SIZE; i++) { bs[i] = ~((Bits )0); }
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}
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#endif
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static void
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bitset_invert(BitSetRef bs)
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{
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int i;
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for (i = 0; i < (int )BITSET_SIZE; i++) { bs[i] = ~(bs[i]); }
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}
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static void
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bitset_invert_to(BitSetRef from, BitSetRef to)
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{
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int i;
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for (i = 0; i < (int )BITSET_SIZE; i++) { to[i] = ~(from[i]); }
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}
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static void
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bitset_and(BitSetRef dest, BitSetRef bs)
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{
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int i;
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for (i = 0; i < (int )BITSET_SIZE; i++) { dest[i] &= bs[i]; }
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}
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static void
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bitset_or(BitSetRef dest, BitSetRef bs)
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{
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int i;
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for (i = 0; i < (int )BITSET_SIZE; i++) { dest[i] |= bs[i]; }
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}
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static void
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bitset_copy(BitSetRef dest, BitSetRef bs)
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{
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int i;
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for (i = 0; i < (int )BITSET_SIZE; i++) { dest[i] = bs[i]; }
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}
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extern int
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onig_strncmp(const UChar* s1, const UChar* s2, int n)
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{
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int x;
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while (n-- > 0) {
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x = *s2++ - *s1++;
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if (x) return x;
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}
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return 0;
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}
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extern void
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onig_strcpy(UChar* dest, const UChar* src, const UChar* end)
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{
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int len = (int )(end - src);
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if (len > 0) {
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xmemcpy(dest, src, len);
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dest[len] = (UChar )0;
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}
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}
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static int
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save_entry(ScanEnv* env, enum SaveType type, int* id)
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{
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int nid = env->save_num;
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#if 0
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if (IS_NULL(env->saves)) {
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int n = 10;
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env->saves = (SaveItem* )xmalloc(sizeof(SaveItem) * n);
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CHECK_NULL_RETURN_MEMERR(env->saves);
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env->save_alloc_num = n;
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}
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else if (env->save_alloc_num <= nid) {
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int n = env->save_alloc_num * 2;
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SaveItem* p = (SaveItem* )xrealloc(env->saves, sizeof(SaveItem) * n, sizeof(SaveItem)*env->save_alloc_num);
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CHECK_NULL_RETURN_MEMERR(p);
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env->saves = p;
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env->save_alloc_num = n;
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}
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env->saves[nid].type = type;
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#endif
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env->save_num++;
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*id = nid;
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return 0;
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}
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/* scan pattern methods */
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#define PEND_VALUE 0
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#define PFETCH_READY UChar* pfetch_prev
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#define PEND (p < end ? 0 : 1)
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#define PUNFETCH p = pfetch_prev
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#define PINC do { \
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pfetch_prev = p; \
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p += ONIGENC_MBC_ENC_LEN(enc, p); \
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} while (0)
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#define PFETCH(c) do { \
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c = ONIGENC_MBC_TO_CODE(enc, p, end); \
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pfetch_prev = p; \
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p += ONIGENC_MBC_ENC_LEN(enc, p); \
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} while (0)
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#define PINC_S do { \
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p += ONIGENC_MBC_ENC_LEN(enc, p); \
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} while (0)
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#define PFETCH_S(c) do { \
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c = ONIGENC_MBC_TO_CODE(enc, p, end); \
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p += ONIGENC_MBC_ENC_LEN(enc, p); \
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} while (0)
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#define PPEEK (p < end ? ONIGENC_MBC_TO_CODE(enc, p, end) : PEND_VALUE)
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#define PPEEK_IS(c) (PPEEK == (OnigCodePoint )c)
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static UChar*
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strcat_capa(UChar* dest, UChar* dest_end, const UChar* src, const UChar* src_end,
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int capa, int oldCapa)
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{
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UChar* r;
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if (dest)
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r = (UChar* )xrealloc(dest, capa + 1, oldCapa);
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else
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r = (UChar* )xmalloc(capa + 1);
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CHECK_NULL_RETURN(r);
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onig_strcpy(r + (dest_end - dest), src, src_end);
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return r;
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}
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/* dest on static area */
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static UChar*
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strcat_capa_from_static(UChar* dest, UChar* dest_end,
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const UChar* src, const UChar* src_end, int capa)
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{
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UChar* r;
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r = (UChar* )xmalloc(capa + 1);
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CHECK_NULL_RETURN(r);
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onig_strcpy(r, dest, dest_end);
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onig_strcpy(r + (dest_end - dest), src, src_end);
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return r;
|
|
}
|
|
|
|
|
|
#ifdef USE_ST_LIBRARY
|
|
|
|
typedef struct {
|
|
UChar* s;
|
|
UChar* end;
|
|
} st_str_end_key;
|
|
|
|
static int
|
|
str_end_cmp(st_str_end_key* x, st_str_end_key* y)
|
|
{
|
|
UChar *p, *q;
|
|
int c;
|
|
|
|
if ((x->end - x->s) != (y->end - y->s))
|
|
return 1;
|
|
|
|
p = x->s;
|
|
q = y->s;
|
|
while (p < x->end) {
|
|
c = (int )*p - (int )*q;
|
|
if (c != 0) return c;
|
|
|
|
p++; q++;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
str_end_hash(st_str_end_key* x)
|
|
{
|
|
UChar *p;
|
|
int val = 0;
|
|
|
|
p = x->s;
|
|
while (p < x->end) {
|
|
val = val * 997 + (int )*p++;
|
|
}
|
|
|
|
return val + (val >> 5);
|
|
}
|
|
|
|
extern hash_table_type*
|
|
onig_st_init_strend_table_with_size(int size)
|
|
{
|
|
static struct st_hash_type hashType = {
|
|
str_end_cmp,
|
|
str_end_hash,
|
|
};
|
|
|
|
return (hash_table_type* )
|
|
onig_st_init_table_with_size(&hashType, size);
|
|
}
|
|
|
|
extern int
|
|
onig_st_lookup_strend(hash_table_type* table, const UChar* str_key,
|
|
const UChar* end_key, hash_data_type *value)
|
|
{
|
|
st_str_end_key key;
|
|
|
|
key.s = (UChar* )str_key;
|
|
key.end = (UChar* )end_key;
|
|
|
|
return onig_st_lookup(table, (st_data_t )(&key), value);
|
|
}
|
|
|
|
extern int
|
|
onig_st_insert_strend(hash_table_type* table, const UChar* str_key,
|
|
const UChar* end_key, hash_data_type value)
|
|
{
|
|
st_str_end_key* key;
|
|
int result;
|
|
|
|
key = (st_str_end_key* )xmalloc(sizeof(st_str_end_key));
|
|
CHECK_NULL_RETURN_MEMERR(key);
|
|
|
|
key->s = (UChar* )str_key;
|
|
key->end = (UChar* )end_key;
|
|
result = onig_st_insert(table, (st_data_t )key, value);
|
|
if (result) {
|
|
xfree(key);
|
|
}
|
|
return result;
|
|
}
|
|
|
|
|
|
#ifdef USE_CALLOUT
|
|
|
|
typedef struct {
|
|
OnigEncoding enc;
|
|
int type; /* callout type: single or not */
|
|
UChar* s;
|
|
UChar* end;
|
|
} st_callout_name_key;
|
|
|
|
static int
|
|
callout_name_table_cmp(st_callout_name_key* x, st_callout_name_key* y)
|
|
{
|
|
UChar *p, *q;
|
|
int c;
|
|
|
|
if (x->enc != y->enc) return 1;
|
|
if (x->type != y->type) return 1;
|
|
if ((x->end - x->s) != (y->end - y->s))
|
|
return 1;
|
|
|
|
p = x->s;
|
|
q = y->s;
|
|
while (p < x->end) {
|
|
c = (int )*p - (int )*q;
|
|
if (c != 0) return c;
|
|
|
|
p++; q++;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
callout_name_table_hash(st_callout_name_key* x)
|
|
{
|
|
UChar *p;
|
|
int val = 0;
|
|
|
|
p = x->s;
|
|
while (p < x->end) {
|
|
val = val * 997 + (int )*p++;
|
|
}
|
|
|
|
/* use intptr_t for escape warning in Windows */
|
|
return val + (val >> 5) + ((intptr_t )x->enc & 0xffff) + x->type;
|
|
}
|
|
|
|
extern hash_table_type*
|
|
onig_st_init_callout_name_table_with_size(int size)
|
|
{
|
|
static struct st_hash_type hashType = {
|
|
callout_name_table_cmp,
|
|
callout_name_table_hash,
|
|
};
|
|
|
|
return (hash_table_type* )
|
|
onig_st_init_table_with_size(&hashType, size);
|
|
}
|
|
|
|
extern int
|
|
onig_st_lookup_callout_name_table(hash_table_type* table,
|
|
OnigEncoding enc,
|
|
int type,
|
|
const UChar* str_key,
|
|
const UChar* end_key,
|
|
hash_data_type *value)
|
|
{
|
|
st_callout_name_key key;
|
|
|
|
key.enc = enc;
|
|
key.type = type;
|
|
key.s = (UChar* )str_key;
|
|
key.end = (UChar* )end_key;
|
|
|
|
return onig_st_lookup(table, (st_data_t )(&key), value);
|
|
}
|
|
|
|
static int
|
|
st_insert_callout_name_table(hash_table_type* table,
|
|
OnigEncoding enc, int type,
|
|
UChar* str_key, UChar* end_key,
|
|
hash_data_type value)
|
|
{
|
|
st_callout_name_key* key;
|
|
int result;
|
|
|
|
key = (st_callout_name_key* )xmalloc(sizeof(st_callout_name_key));
|
|
CHECK_NULL_RETURN_MEMERR(key);
|
|
|
|
/* key->s: don't duplicate, because str_key is duped in callout_name_entry() */
|
|
key->enc = enc;
|
|
key->type = type;
|
|
key->s = str_key;
|
|
key->end = end_key;
|
|
result = onig_st_insert(table, (st_data_t )key, value);
|
|
if (result) {
|
|
xfree(key);
|
|
}
|
|
return result;
|
|
}
|
|
#endif
|
|
|
|
#endif /* USE_ST_LIBRARY */
|
|
|
|
|
|
#define INIT_NAME_BACKREFS_ALLOC_NUM 8
|
|
|
|
typedef struct {
|
|
UChar* name;
|
|
int name_len; /* byte length */
|
|
int back_num; /* number of backrefs */
|
|
int back_alloc;
|
|
int back_ref1;
|
|
int* back_refs;
|
|
} NameEntry;
|
|
|
|
#ifdef USE_ST_LIBRARY
|
|
|
|
#define INIT_NAMES_ALLOC_NUM 5
|
|
|
|
typedef st_table NameTable;
|
|
typedef st_data_t HashDataType; /* 1.6 st.h doesn't define st_data_t type */
|
|
|
|
#define NAMEBUF_SIZE 24
|
|
#define NAMEBUF_SIZE_1 25
|
|
|
|
#ifdef ONIG_DEBUG
|
|
static int
|
|
i_print_name_entry(UChar* key, NameEntry* e, void* arg)
|
|
{
|
|
int i;
|
|
FILE* fp = (FILE* )arg;
|
|
|
|
fprintf(fp, "%s: ", e->name);
|
|
if (e->back_num == 0)
|
|
fputs("-", fp);
|
|
else if (e->back_num == 1)
|
|
fprintf(fp, "%d", e->back_ref1);
|
|
else {
|
|
for (i = 0; i < e->back_num; i++) {
|
|
if (i > 0) fprintf(fp, ", ");
|
|
fprintf(fp, "%d", e->back_refs[i]);
|
|
}
|
|
}
|
|
fputs("\n", fp);
|
|
return ST_CONTINUE;
|
|
}
|
|
|
|
extern int
|
|
onig_print_names(FILE* fp, regex_t* reg)
|
|
{
|
|
NameTable* t = (NameTable* )reg->name_table;
|
|
|
|
if (IS_NOT_NULL(t)) {
|
|
fprintf(fp, "name table\n");
|
|
onig_st_foreach(t, i_print_name_entry, (HashDataType )fp);
|
|
fputs("\n", fp);
|
|
}
|
|
return 0;
|
|
}
|
|
#endif /* ONIG_DEBUG */
|
|
|
|
static int
|
|
i_free_name_entry(UChar* key, NameEntry* e, void* arg ARG_UNUSED)
|
|
{
|
|
xfree(e->name);
|
|
if (IS_NOT_NULL(e->back_refs)) xfree(e->back_refs);
|
|
xfree(key);
|
|
xfree(e);
|
|
return ST_DELETE;
|
|
}
|
|
|
|
static int
|
|
names_clear(regex_t* reg)
|
|
{
|
|
NameTable* t = (NameTable* )reg->name_table;
|
|
|
|
if (IS_NOT_NULL(t)) {
|
|
onig_st_foreach(t, i_free_name_entry, 0);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
extern int
|
|
onig_names_free(regex_t* reg)
|
|
{
|
|
int r;
|
|
NameTable* t;
|
|
|
|
r = names_clear(reg);
|
|
if (r != 0) return r;
|
|
|
|
t = (NameTable* )reg->name_table;
|
|
if (IS_NOT_NULL(t)) onig_st_free_table(t);
|
|
reg->name_table = (void* )NULL;
|
|
return 0;
|
|
}
|
|
|
|
static NameEntry*
|
|
name_find(regex_t* reg, const UChar* name, const UChar* name_end)
|
|
{
|
|
NameEntry* e;
|
|
NameTable* t = (NameTable* )reg->name_table;
|
|
|
|
e = (NameEntry* )NULL;
|
|
if (IS_NOT_NULL(t)) {
|
|
onig_st_lookup_strend(t, name, name_end, (HashDataType* )((void* )(&e)));
|
|
}
|
|
return e;
|
|
}
|
|
|
|
typedef struct {
|
|
int (*func)(const UChar*, const UChar*,int,int*,regex_t*,void*);
|
|
regex_t* reg;
|
|
void* arg;
|
|
int ret;
|
|
OnigEncoding enc;
|
|
} INamesArg;
|
|
|
|
static int
|
|
i_names(UChar* key ARG_UNUSED, NameEntry* e, INamesArg* arg)
|
|
{
|
|
int r = (*(arg->func))(e->name,
|
|
e->name + e->name_len,
|
|
e->back_num,
|
|
(e->back_num > 1 ? e->back_refs : &(e->back_ref1)),
|
|
arg->reg, arg->arg);
|
|
if (r != 0) {
|
|
arg->ret = r;
|
|
return ST_STOP;
|
|
}
|
|
return ST_CONTINUE;
|
|
}
|
|
|
|
extern int
|
|
onig_foreach_name(regex_t* reg,
|
|
int (*func)(const UChar*, const UChar*,int,int*,regex_t*,void*), void* arg)
|
|
{
|
|
INamesArg narg;
|
|
NameTable* t = (NameTable* )reg->name_table;
|
|
|
|
narg.ret = 0;
|
|
if (IS_NOT_NULL(t)) {
|
|
narg.func = func;
|
|
narg.reg = reg;
|
|
narg.arg = arg;
|
|
narg.enc = reg->enc; /* should be pattern encoding. */
|
|
onig_st_foreach(t, i_names, (HashDataType )&narg);
|
|
}
|
|
return narg.ret;
|
|
}
|
|
|
|
static int
|
|
i_renumber_name(UChar* key ARG_UNUSED, NameEntry* e, GroupNumRemap* map)
|
|
{
|
|
int i;
|
|
|
|
if (e->back_num > 1) {
|
|
for (i = 0; i < e->back_num; i++) {
|
|
e->back_refs[i] = map[e->back_refs[i]].new_val;
|
|
}
|
|
}
|
|
else if (e->back_num == 1) {
|
|
e->back_ref1 = map[e->back_ref1].new_val;
|
|
}
|
|
|
|
return ST_CONTINUE;
|
|
}
|
|
|
|
extern int
|
|
onig_renumber_name_table(regex_t* reg, GroupNumRemap* map)
|
|
{
|
|
NameTable* t = (NameTable* )reg->name_table;
|
|
|
|
if (IS_NOT_NULL(t)) {
|
|
onig_st_foreach(t, i_renumber_name, (HashDataType )map);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
|
|
extern int
|
|
onig_number_of_names(regex_t* reg)
|
|
{
|
|
NameTable* t = (NameTable* )reg->name_table;
|
|
|
|
if (IS_NOT_NULL(t))
|
|
return t->num_entries;
|
|
else
|
|
return 0;
|
|
}
|
|
|
|
#else /* USE_ST_LIBRARY */
|
|
|
|
#define INIT_NAMES_ALLOC_NUM 8
|
|
|
|
typedef struct {
|
|
NameEntry* e;
|
|
int num;
|
|
int alloc;
|
|
} NameTable;
|
|
|
|
#ifdef ONIG_DEBUG
|
|
extern int
|
|
onig_print_names(FILE* fp, regex_t* reg)
|
|
{
|
|
int i, j;
|
|
NameEntry* e;
|
|
NameTable* t = (NameTable* )reg->name_table;
|
|
|
|
if (IS_NOT_NULL(t) && t->num > 0) {
|
|
fprintf(fp, "name table\n");
|
|
for (i = 0; i < t->num; i++) {
|
|
e = &(t->e[i]);
|
|
fprintf(fp, "%s: ", e->name);
|
|
if (e->back_num == 0) {
|
|
fputs("-", fp);
|
|
}
|
|
else if (e->back_num == 1) {
|
|
fprintf(fp, "%d", e->back_ref1);
|
|
}
|
|
else {
|
|
for (j = 0; j < e->back_num; j++) {
|
|
if (j > 0) fprintf(fp, ", ");
|
|
fprintf(fp, "%d", e->back_refs[j]);
|
|
}
|
|
}
|
|
fputs("\n", fp);
|
|
}
|
|
fputs("\n", fp);
|
|
}
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
|
static int
|
|
names_clear(regex_t* reg)
|
|
{
|
|
int i;
|
|
NameEntry* e;
|
|
NameTable* t = (NameTable* )reg->name_table;
|
|
|
|
if (IS_NOT_NULL(t)) {
|
|
for (i = 0; i < t->num; i++) {
|
|
e = &(t->e[i]);
|
|
if (IS_NOT_NULL(e->name)) {
|
|
xfree(e->name);
|
|
e->name = NULL;
|
|
e->name_len = 0;
|
|
e->back_num = 0;
|
|
e->back_alloc = 0;
|
|
if (IS_NOT_NULL(e->back_refs)) xfree(e->back_refs);
|
|
e->back_refs = (int* )NULL;
|
|
}
|
|
}
|
|
if (IS_NOT_NULL(t->e)) {
|
|
xfree(t->e);
|
|
t->e = NULL;
|
|
}
|
|
t->num = 0;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
extern int
|
|
onig_names_free(regex_t* reg)
|
|
{
|
|
int r;
|
|
NameTable* t;
|
|
|
|
r = names_clear(reg);
|
|
if (r != 0) return r;
|
|
|
|
t = (NameTable* )reg->name_table;
|
|
if (IS_NOT_NULL(t)) xfree(t);
|
|
reg->name_table = NULL;
|
|
return 0;
|
|
}
|
|
|
|
static NameEntry*
|
|
name_find(regex_t* reg, UChar* name, UChar* name_end)
|
|
{
|
|
int i, len;
|
|
NameEntry* e;
|
|
NameTable* t = (NameTable* )reg->name_table;
|
|
|
|
if (IS_NOT_NULL(t)) {
|
|
len = name_end - name;
|
|
for (i = 0; i < t->num; i++) {
|
|
e = &(t->e[i]);
|
|
if (len == e->name_len && onig_strncmp(name, e->name, len) == 0)
|
|
return e;
|
|
}
|
|
}
|
|
return (NameEntry* )NULL;
|
|
}
|
|
|
|
extern int
|
|
onig_foreach_name(regex_t* reg,
|
|
int (*func)(const UChar*, const UChar*,int,int*,regex_t*,void*), void* arg)
|
|
{
|
|
int i, r;
|
|
NameEntry* e;
|
|
NameTable* t = (NameTable* )reg->name_table;
|
|
|
|
if (IS_NOT_NULL(t)) {
|
|
for (i = 0; i < t->num; i++) {
|
|
e = &(t->e[i]);
|
|
r = (*func)(e->name, e->name + e->name_len, e->back_num,
|
|
(e->back_num > 1 ? e->back_refs : &(e->back_ref1)),
|
|
reg, arg);
|
|
if (r != 0) return r;
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
extern int
|
|
onig_number_of_names(regex_t* reg)
|
|
{
|
|
NameTable* t = (NameTable* )reg->name_table;
|
|
|
|
if (IS_NOT_NULL(t))
|
|
return t->num;
|
|
else
|
|
return 0;
|
|
}
|
|
|
|
#endif /* else USE_ST_LIBRARY */
|
|
|
|
static int
|
|
name_add(regex_t* reg, UChar* name, UChar* name_end, int backref, ScanEnv* env)
|
|
{
|
|
int r;
|
|
int alloc;
|
|
NameEntry* e;
|
|
NameTable* t = (NameTable* )reg->name_table;
|
|
|
|
if (name_end - name <= 0)
|
|
return ONIGERR_EMPTY_GROUP_NAME;
|
|
|
|
e = name_find(reg, name, name_end);
|
|
if (IS_NULL(e)) {
|
|
#ifdef USE_ST_LIBRARY
|
|
if (IS_NULL(t)) {
|
|
t = onig_st_init_strend_table_with_size(INIT_NAMES_ALLOC_NUM);
|
|
CHECK_NULL_RETURN_MEMERR(t);
|
|
reg->name_table = (void* )t;
|
|
}
|
|
e = (NameEntry* )xmalloc(sizeof(NameEntry));
|
|
CHECK_NULL_RETURN_MEMERR(e);
|
|
|
|
e->name = onigenc_strdup(reg->enc, name, name_end);
|
|
if (IS_NULL(e->name)) {
|
|
xfree(e); return ONIGERR_MEMORY;
|
|
}
|
|
r = onig_st_insert_strend(t, e->name, (e->name + (name_end - name)),
|
|
(HashDataType )e);
|
|
if (r < 0) return r;
|
|
|
|
e->name_len = (int )(name_end - name);
|
|
e->back_num = 0;
|
|
e->back_alloc = 0;
|
|
e->back_refs = (int* )NULL;
|
|
|
|
#else
|
|
|
|
if (IS_NULL(t)) {
|
|
alloc = INIT_NAMES_ALLOC_NUM;
|
|
t = (NameTable* )xmalloc(sizeof(NameTable));
|
|
CHECK_NULL_RETURN_MEMERR(t);
|
|
t->e = NULL;
|
|
t->alloc = 0;
|
|
t->num = 0;
|
|
|
|
t->e = (NameEntry* )xmalloc(sizeof(NameEntry) * alloc);
|
|
if (IS_NULL(t->e)) {
|
|
xfree(t);
|
|
return ONIGERR_MEMORY;
|
|
}
|
|
t->alloc = alloc;
|
|
reg->name_table = t;
|
|
goto clear;
|
|
}
|
|
else if (t->num == t->alloc) {
|
|
int i;
|
|
|
|
alloc = t->alloc * 2;
|
|
t->e = (NameEntry* )xrealloc(t->e, sizeof(NameEntry) * alloc, sizeof(NameEntry) * t->alloc);
|
|
CHECK_NULL_RETURN_MEMERR(t->e);
|
|
t->alloc = alloc;
|
|
|
|
clear:
|
|
for (i = t->num; i < t->alloc; i++) {
|
|
t->e[i].name = NULL;
|
|
t->e[i].name_len = 0;
|
|
t->e[i].back_num = 0;
|
|
t->e[i].back_alloc = 0;
|
|
t->e[i].back_refs = (int* )NULL;
|
|
}
|
|
}
|
|
e = &(t->e[t->num]);
|
|
t->num++;
|
|
e->name = onigenc_strdup(reg->enc, name, name_end);
|
|
if (IS_NULL(e->name)) return ONIGERR_MEMORY;
|
|
e->name_len = name_end - name;
|
|
#endif
|
|
}
|
|
|
|
if (e->back_num >= 1 &&
|
|
! IS_SYNTAX_BV(env->syntax, ONIG_SYN_ALLOW_MULTIPLEX_DEFINITION_NAME)) {
|
|
onig_scan_env_set_error_string(env, ONIGERR_MULTIPLEX_DEFINED_NAME,
|
|
name, name_end);
|
|
return ONIGERR_MULTIPLEX_DEFINED_NAME;
|
|
}
|
|
|
|
e->back_num++;
|
|
if (e->back_num == 1) {
|
|
e->back_ref1 = backref;
|
|
}
|
|
else {
|
|
if (e->back_num == 2) {
|
|
alloc = INIT_NAME_BACKREFS_ALLOC_NUM;
|
|
e->back_refs = (int* )xmalloc(sizeof(int) * alloc);
|
|
CHECK_NULL_RETURN_MEMERR(e->back_refs);
|
|
e->back_alloc = alloc;
|
|
e->back_refs[0] = e->back_ref1;
|
|
e->back_refs[1] = backref;
|
|
}
|
|
else {
|
|
if (e->back_num > e->back_alloc) {
|
|
alloc = e->back_alloc * 2;
|
|
e->back_refs = (int* )xrealloc(e->back_refs, sizeof(int) * alloc, sizeof(int) * e->back_alloc);
|
|
CHECK_NULL_RETURN_MEMERR(e->back_refs);
|
|
e->back_alloc = alloc;
|
|
}
|
|
e->back_refs[e->back_num - 1] = backref;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
extern int
|
|
onig_name_to_group_numbers(regex_t* reg, const UChar* name,
|
|
const UChar* name_end, int** nums)
|
|
{
|
|
NameEntry* e = name_find(reg, name, name_end);
|
|
|
|
if (IS_NULL(e)) return ONIGERR_UNDEFINED_NAME_REFERENCE;
|
|
|
|
switch (e->back_num) {
|
|
case 0:
|
|
break;
|
|
case 1:
|
|
*nums = &(e->back_ref1);
|
|
break;
|
|
default:
|
|
*nums = e->back_refs;
|
|
break;
|
|
}
|
|
return e->back_num;
|
|
}
|
|
|
|
static int
|
|
name_to_group_numbers(ScanEnv* env, const UChar* name, const UChar* name_end,
|
|
int** nums)
|
|
{
|
|
regex_t* reg;
|
|
NameEntry* e;
|
|
|
|
reg = env->reg;
|
|
e = name_find(reg, name, name_end);
|
|
|
|
if (IS_NULL(e)) {
|
|
onig_scan_env_set_error_string(env, ONIGERR_UNDEFINED_NAME_REFERENCE,
|
|
(UChar* )name, (UChar* )name_end);
|
|
return ONIGERR_UNDEFINED_NAME_REFERENCE;
|
|
}
|
|
|
|
switch (e->back_num) {
|
|
case 0:
|
|
break;
|
|
case 1:
|
|
*nums = &(e->back_ref1);
|
|
break;
|
|
default:
|
|
*nums = e->back_refs;
|
|
break;
|
|
}
|
|
return e->back_num;
|
|
}
|
|
|
|
extern int
|
|
onig_name_to_backref_number(regex_t* reg, const UChar* name,
|
|
const UChar* name_end, OnigRegion *region)
|
|
{
|
|
int i, n, *nums;
|
|
|
|
n = onig_name_to_group_numbers(reg, name, name_end, &nums);
|
|
if (n < 0)
|
|
return n;
|
|
else if (n == 0)
|
|
return ONIGERR_PARSER_BUG;
|
|
else if (n == 1)
|
|
return nums[0];
|
|
else {
|
|
if (IS_NOT_NULL(region)) {
|
|
for (i = n - 1; i >= 0; i--) {
|
|
if (region->beg[nums[i]] != ONIG_REGION_NOTPOS)
|
|
return nums[i];
|
|
}
|
|
}
|
|
return nums[n - 1];
|
|
}
|
|
}
|
|
|
|
extern int
|
|
onig_noname_group_capture_is_active(regex_t* reg)
|
|
{
|
|
if (ONIG_IS_OPTION_ON(reg->options, ONIG_OPTION_DONT_CAPTURE_GROUP))
|
|
return 0;
|
|
|
|
if (onig_number_of_names(reg) > 0 &&
|
|
IS_SYNTAX_BV(reg->syntax, ONIG_SYN_CAPTURE_ONLY_NAMED_GROUP) &&
|
|
!ONIG_IS_OPTION_ON(reg->options, ONIG_OPTION_CAPTURE_GROUP)) {
|
|
return 0;
|
|
}
|
|
|
|
return 1;
|
|
}
|
|
|
|
#ifdef USE_CALLOUT
|
|
|
|
typedef struct {
|
|
OnigCalloutType type;
|
|
int in;
|
|
OnigCalloutFunc start_func;
|
|
OnigCalloutFunc end_func;
|
|
int arg_num;
|
|
int opt_arg_num;
|
|
unsigned int arg_types[ONIG_CALLOUT_MAX_ARGS_NUM];
|
|
OnigValue opt_defaults[ONIG_CALLOUT_MAX_ARGS_NUM];
|
|
UChar* name; /* reference to GlobalCalloutNameTable entry: e->name */
|
|
} CalloutNameListEntry;
|
|
|
|
typedef struct {
|
|
int n;
|
|
int alloc;
|
|
CalloutNameListEntry* v;
|
|
} CalloutNameListType;
|
|
|
|
static CalloutNameListType* GlobalCalloutNameList;
|
|
|
|
static int
|
|
make_callout_func_list(CalloutNameListType** rs, int init_size)
|
|
{
|
|
CalloutNameListType* s;
|
|
CalloutNameListEntry* v;
|
|
|
|
*rs = 0;
|
|
|
|
s = xmalloc(sizeof(*s));
|
|
if (IS_NULL(s)) return ONIGERR_MEMORY;
|
|
|
|
v = (CalloutNameListEntry* )xmalloc(sizeof(CalloutNameListEntry) * init_size);
|
|
if (IS_NULL(v)) {
|
|
xfree(s);
|
|
return ONIGERR_MEMORY;
|
|
}
|
|
|
|
s->n = 0;
|
|
s->alloc = init_size;
|
|
s->v = v;
|
|
|
|
*rs = s;
|
|
return ONIG_NORMAL;
|
|
}
|
|
|
|
static void
|
|
free_callout_func_list(CalloutNameListType* s)
|
|
{
|
|
if (IS_NOT_NULL(s)) {
|
|
if (IS_NOT_NULL(s->v)) {
|
|
int i, j;
|
|
|
|
for (i = 0; i < s->n; i++) {
|
|
CalloutNameListEntry* e = s->v + i;
|
|
for (j = e->arg_num - e->opt_arg_num; j < e->arg_num; j++) {
|
|
if (e->arg_types[j] == ONIG_TYPE_STRING) {
|
|
UChar* p = e->opt_defaults[j].s.start;
|
|
if (IS_NOT_NULL(p)) xfree(p);
|
|
}
|
|
}
|
|
}
|
|
xfree(s->v);
|
|
}
|
|
xfree(s);
|
|
}
|
|
}
|
|
|
|
static int
|
|
callout_func_list_add(CalloutNameListType* s, int* rid)
|
|
{
|
|
if (s->n >= s->alloc) {
|
|
int new_size = s->alloc * 2;
|
|
CalloutNameListEntry* nv = (CalloutNameListEntry* )
|
|
xrealloc(s->v, sizeof(CalloutNameListEntry) * new_size, sizeof(CalloutNameListEntry)*s->alloc);
|
|
if (IS_NULL(nv)) return ONIGERR_MEMORY;
|
|
|
|
s->alloc = new_size;
|
|
s->v = nv;
|
|
}
|
|
|
|
*rid = s->n;
|
|
|
|
xmemset(&(s->v[s->n]), 0, sizeof(*(s->v)));
|
|
s->n++;
|
|
return ONIG_NORMAL;
|
|
}
|
|
|
|
|
|
typedef struct {
|
|
UChar* name;
|
|
int name_len; /* byte length */
|
|
int id;
|
|
} CalloutNameEntry;
|
|
|
|
#ifdef USE_ST_LIBRARY
|
|
typedef st_table CalloutNameTable;
|
|
#else
|
|
typedef struct {
|
|
CalloutNameEntry* e;
|
|
int num;
|
|
int alloc;
|
|
} CalloutNameTable;
|
|
#endif
|
|
|
|
static CalloutNameTable* GlobalCalloutNameTable;
|
|
static int CalloutNameIDCounter;
|
|
|
|
#ifdef USE_ST_LIBRARY
|
|
|
|
static int
|
|
i_free_callout_name_entry(st_callout_name_key* key, CalloutNameEntry* e,
|
|
void* arg ARG_UNUSED)
|
|
{
|
|
xfree(e->name);
|
|
/*xfree(key->s); */ /* is same as e->name */
|
|
xfree(key);
|
|
xfree(e);
|
|
return ST_DELETE;
|
|
}
|
|
|
|
static int
|
|
callout_name_table_clear(CalloutNameTable* t)
|
|
{
|
|
if (IS_NOT_NULL(t)) {
|
|
onig_st_foreach(t, i_free_callout_name_entry, 0);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
global_callout_name_table_free(void)
|
|
{
|
|
if (IS_NOT_NULL(GlobalCalloutNameTable)) {
|
|
int r = callout_name_table_clear(GlobalCalloutNameTable);
|
|
if (r != 0) return r;
|
|
|
|
onig_st_free_table(GlobalCalloutNameTable);
|
|
GlobalCalloutNameTable = 0;
|
|
CalloutNameIDCounter = 0;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static CalloutNameEntry*
|
|
callout_name_find(OnigEncoding enc, int is_not_single,
|
|
const UChar* name, const UChar* name_end)
|
|
{
|
|
int r;
|
|
CalloutNameEntry* e;
|
|
CalloutNameTable* t = GlobalCalloutNameTable;
|
|
|
|
e = (CalloutNameEntry* )NULL;
|
|
if (IS_NOT_NULL(t)) {
|
|
r = onig_st_lookup_callout_name_table(t, enc, is_not_single, name, name_end,
|
|
(HashDataType* )((void* )(&e)));
|
|
if (r == 0) { /* not found */
|
|
if (enc != ONIG_ENCODING_ASCII &&
|
|
ONIGENC_IS_ASCII_COMPATIBLE_ENCODING(enc)) {
|
|
enc = ONIG_ENCODING_ASCII;
|
|
onig_st_lookup_callout_name_table(t, enc, is_not_single, name, name_end,
|
|
(HashDataType* )((void* )(&e)));
|
|
}
|
|
}
|
|
}
|
|
return e;
|
|
}
|
|
|
|
#else
|
|
|
|
static int
|
|
callout_name_table_clear(CalloutNameTable* t)
|
|
{
|
|
int i;
|
|
CalloutNameEntry* e;
|
|
|
|
if (IS_NOT_NULL(t)) {
|
|
for (i = 0; i < t->num; i++) {
|
|
e = &(t->e[i]);
|
|
if (IS_NOT_NULL(e->name)) {
|
|
xfree(e->name);
|
|
e->name = NULL;
|
|
e->name_len = 0;
|
|
e->id = 0;
|
|
e->func = 0;
|
|
}
|
|
}
|
|
if (IS_NOT_NULL(t->e)) {
|
|
xfree(t->e);
|
|
t->e = NULL;
|
|
}
|
|
t->num = 0;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
global_callout_name_table_free(void)
|
|
{
|
|
if (IS_NOT_NULL(GlobalCalloutNameTable)) {
|
|
int r = callout_name_table_clear(GlobalCalloutNameTable);
|
|
if (r != 0) return r;
|
|
|
|
xfree(GlobalCalloutNameTable);
|
|
GlobalCalloutNameTable = 0;
|
|
CalloutNameIDCounter = 0;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static CalloutNameEntry*
|
|
callout_name_find(UChar* name, UChar* name_end)
|
|
{
|
|
int i, len;
|
|
CalloutNameEntry* e;
|
|
CalloutNameTable* t = Calloutnames;
|
|
|
|
if (IS_NOT_NULL(t)) {
|
|
len = name_end - name;
|
|
for (i = 0; i < t->num; i++) {
|
|
e = &(t->e[i]);
|
|
if (len == e->name_len && onig_strncmp(name, e->name, len) == 0)
|
|
return e;
|
|
}
|
|
}
|
|
return (CalloutNameEntry* )NULL;
|
|
}
|
|
|
|
#endif
|
|
|
|
/* name string must be single byte char string. */
|
|
static int
|
|
callout_name_entry(CalloutNameEntry** rentry, OnigEncoding enc,
|
|
int is_not_single, UChar* name, UChar* name_end)
|
|
{
|
|
int r;
|
|
CalloutNameEntry* e;
|
|
CalloutNameTable* t = GlobalCalloutNameTable;
|
|
|
|
*rentry = 0;
|
|
if (name_end - name <= 0)
|
|
return ONIGERR_INVALID_CALLOUT_NAME;
|
|
|
|
e = callout_name_find(enc, is_not_single, name, name_end);
|
|
if (IS_NULL(e)) {
|
|
#ifdef USE_ST_LIBRARY
|
|
if (IS_NULL(t)) {
|
|
t = onig_st_init_callout_name_table_with_size(INIT_NAMES_ALLOC_NUM);
|
|
CHECK_NULL_RETURN_MEMERR(t);
|
|
GlobalCalloutNameTable = t;
|
|
}
|
|
e = (CalloutNameEntry* )xmalloc(sizeof(CalloutNameEntry));
|
|
CHECK_NULL_RETURN_MEMERR(e);
|
|
|
|
e->name = onigenc_strdup(enc, name, name_end);
|
|
if (IS_NULL(e->name)) {
|
|
xfree(e); return ONIGERR_MEMORY;
|
|
}
|
|
|
|
r = st_insert_callout_name_table(t, enc, is_not_single,
|
|
e->name, (e->name + (name_end - name)),
|
|
(HashDataType )e);
|
|
if (r < 0) return r;
|
|
|
|
#else
|
|
|
|
int alloc;
|
|
|
|
if (IS_NULL(t)) {
|
|
alloc = INIT_NAMES_ALLOC_NUM;
|
|
t = (CalloutNameTable* )xmalloc(sizeof(CalloutNameTable));
|
|
CHECK_NULL_RETURN_MEMERR(t);
|
|
t->e = NULL;
|
|
t->alloc = 0;
|
|
t->num = 0;
|
|
|
|
t->e = (CalloutNameEntry* )xmalloc(sizeof(CalloutNameEntry) * alloc);
|
|
if (IS_NULL(t->e)) {
|
|
xfree(t);
|
|
return ONIGERR_MEMORY;
|
|
}
|
|
t->alloc = alloc;
|
|
GlobalCalloutNameTable = t;
|
|
goto clear;
|
|
}
|
|
else if (t->num == t->alloc) {
|
|
int i;
|
|
|
|
alloc = t->alloc * 2;
|
|
t->e = (CalloutNameEntry* )xrealloc(t->e, sizeof(CalloutNameEntry) * alloc, sizeof(CalloutNameEntry)*t->alloc);
|
|
CHECK_NULL_RETURN_MEMERR(t->e);
|
|
t->alloc = alloc;
|
|
|
|
clear:
|
|
for (i = t->num; i < t->alloc; i++) {
|
|
t->e[i].name = NULL;
|
|
t->e[i].name_len = 0;
|
|
t->e[i].id = 0;
|
|
}
|
|
}
|
|
e = &(t->e[t->num]);
|
|
t->num++;
|
|
e->name = onigenc_strdup(enc, name, name_end);
|
|
if (IS_NULL(e->name)) return ONIGERR_MEMORY;
|
|
#endif
|
|
|
|
CalloutNameIDCounter++;
|
|
e->id = CalloutNameIDCounter;
|
|
e->name_len = (int )(name_end - name);
|
|
}
|
|
|
|
*rentry = e;
|
|
return e->id;
|
|
}
|
|
|
|
static int
|
|
is_allowed_callout_name(OnigEncoding enc, UChar* name, UChar* name_end)
|
|
{
|
|
UChar* p;
|
|
OnigCodePoint c;
|
|
|
|
if (name >= name_end) return 0;
|
|
|
|
p = name;
|
|
while (p < name_end) {
|
|
c = ONIGENC_MBC_TO_CODE(enc, p, name_end);
|
|
if (! IS_ALLOWED_CODE_IN_CALLOUT_NAME(c))
|
|
return 0;
|
|
|
|
if (p == name) {
|
|
if (c >= '0' && c <= '9') return 0;
|
|
}
|
|
|
|
p += ONIGENC_MBC_ENC_LEN(enc, p);
|
|
}
|
|
|
|
return 1;
|
|
}
|
|
|
|
static int
|
|
is_allowed_callout_tag_name(OnigEncoding enc, UChar* name, UChar* name_end)
|
|
{
|
|
UChar* p;
|
|
OnigCodePoint c;
|
|
|
|
if (name >= name_end) return 0;
|
|
|
|
p = name;
|
|
while (p < name_end) {
|
|
c = ONIGENC_MBC_TO_CODE(enc, p, name_end);
|
|
if (! IS_ALLOWED_CODE_IN_CALLOUT_TAG_NAME(c))
|
|
return 0;
|
|
|
|
if (p == name) {
|
|
if (c >= '0' && c <= '9') return 0;
|
|
}
|
|
|
|
p += ONIGENC_MBC_ENC_LEN(enc, p);
|
|
}
|
|
|
|
return 1;
|
|
}
|
|
|
|
extern int
|
|
onig_set_callout_of_name(OnigEncoding enc, OnigCalloutType callout_type,
|
|
UChar* name, UChar* name_end, int in,
|
|
OnigCalloutFunc start_func,
|
|
OnigCalloutFunc end_func,
|
|
int arg_num, unsigned int arg_types[],
|
|
int opt_arg_num, OnigValue opt_defaults[])
|
|
{
|
|
int r;
|
|
int i;
|
|
int j;
|
|
int id;
|
|
int is_not_single;
|
|
CalloutNameEntry* e;
|
|
CalloutNameListEntry* fe;
|
|
|
|
if (callout_type != ONIG_CALLOUT_TYPE_SINGLE)
|
|
return ONIGERR_INVALID_ARGUMENT;
|
|
|
|
if (arg_num < 0 || arg_num > ONIG_CALLOUT_MAX_ARGS_NUM)
|
|
return ONIGERR_INVALID_CALLOUT_ARG;
|
|
|
|
if (opt_arg_num < 0 || opt_arg_num > arg_num)
|
|
return ONIGERR_INVALID_CALLOUT_ARG;
|
|
|
|
if (start_func == 0 && end_func == 0)
|
|
return ONIGERR_INVALID_CALLOUT_ARG;
|
|
|
|
if ((in & ONIG_CALLOUT_IN_PROGRESS) == 0 && (in & ONIG_CALLOUT_IN_RETRACTION) == 0)
|
|
return ONIGERR_INVALID_CALLOUT_ARG;
|
|
|
|
for (i = 0; i < arg_num; i++) {
|
|
unsigned int t = arg_types[i];
|
|
if (t == ONIG_TYPE_VOID)
|
|
return ONIGERR_INVALID_CALLOUT_ARG;
|
|
else {
|
|
if (i >= arg_num - opt_arg_num) {
|
|
if (t != ONIG_TYPE_LONG && t != ONIG_TYPE_CHAR && t != ONIG_TYPE_STRING &&
|
|
t != ONIG_TYPE_TAG)
|
|
return ONIGERR_INVALID_CALLOUT_ARG;
|
|
}
|
|
else {
|
|
if (t != ONIG_TYPE_LONG) {
|
|
t = t & ~ONIG_TYPE_LONG;
|
|
if (t != ONIG_TYPE_CHAR && t != ONIG_TYPE_STRING && t != ONIG_TYPE_TAG)
|
|
return ONIGERR_INVALID_CALLOUT_ARG;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
if (! is_allowed_callout_name(enc, name, name_end)) {
|
|
return ONIGERR_INVALID_CALLOUT_NAME;
|
|
}
|
|
|
|
is_not_single = (callout_type != ONIG_CALLOUT_TYPE_SINGLE);
|
|
id = callout_name_entry(&e, enc, is_not_single, name, name_end);
|
|
if (id < 0) return id;
|
|
|
|
r = ONIG_NORMAL;
|
|
if (IS_NULL(GlobalCalloutNameList)) {
|
|
r = make_callout_func_list(&GlobalCalloutNameList, 10);
|
|
if (r != ONIG_NORMAL) return r;
|
|
}
|
|
|
|
while (id >= GlobalCalloutNameList->n) {
|
|
int rid;
|
|
r = callout_func_list_add(GlobalCalloutNameList, &rid);
|
|
if (r != ONIG_NORMAL) return r;
|
|
}
|
|
|
|
fe = GlobalCalloutNameList->v + id;
|
|
fe->type = callout_type;
|
|
fe->in = in;
|
|
fe->start_func = start_func;
|
|
fe->end_func = end_func;
|
|
fe->arg_num = arg_num;
|
|
fe->opt_arg_num = opt_arg_num;
|
|
fe->name = e->name;
|
|
|
|
for (i = 0; i < arg_num; i++) {
|
|
fe->arg_types[i] = arg_types[i];
|
|
}
|
|
for (i = arg_num - opt_arg_num, j = 0; i < arg_num; i++, j++) {
|
|
if(IS_NULL(opt_defaults))return ONIGERR_INVALID_ARGUMENT;
|
|
if (fe->arg_types[i] == ONIG_TYPE_STRING) {
|
|
OnigValue* val;
|
|
UChar* ds;
|
|
|
|
if (IS_NULL(opt_defaults)) return ONIGERR_INVALID_ARGUMENT;
|
|
|
|
val = opt_defaults + j;
|
|
ds = onigenc_strdup(enc, val->s.start, val->s.end);
|
|
CHECK_NULL_RETURN_MEMERR(ds);
|
|
|
|
fe->opt_defaults[i].s.start = ds;
|
|
fe->opt_defaults[i].s.end = ds + (val->s.end - val->s.start);
|
|
}
|
|
else {
|
|
fe->opt_defaults[i] = opt_defaults[j];
|
|
}
|
|
}
|
|
|
|
r = id;
|
|
return r;
|
|
}
|
|
|
|
static int
|
|
get_callout_name_id_by_name(OnigEncoding enc, int is_not_single,
|
|
UChar* name, UChar* name_end, int* rid)
|
|
{
|
|
int r;
|
|
CalloutNameEntry* e;
|
|
|
|
if (! is_allowed_callout_name(enc, name, name_end)) {
|
|
return ONIGERR_INVALID_CALLOUT_NAME;
|
|
}
|
|
|
|
e = callout_name_find(enc, is_not_single, name, name_end);
|
|
if (IS_NULL(e)) {
|
|
return ONIGERR_UNDEFINED_CALLOUT_NAME;
|
|
}
|
|
|
|
r = ONIG_NORMAL;
|
|
*rid = e->id;
|
|
|
|
return r;
|
|
}
|
|
|
|
extern OnigCalloutFunc
|
|
onig_get_callout_start_func(regex_t* reg, int callout_num)
|
|
{
|
|
/* If used for callouts of contents, return 0. */
|
|
CalloutListEntry* e;
|
|
|
|
e = onig_reg_callout_list_at(reg, callout_num);
|
|
CHECK_NULL_RETURN(e);
|
|
return e->start_func;
|
|
}
|
|
|
|
extern const UChar*
|
|
onig_get_callout_tag_start(regex_t* reg, int callout_num)
|
|
{
|
|
CalloutListEntry* e = onig_reg_callout_list_at(reg, callout_num);
|
|
CHECK_NULL_RETURN(e);
|
|
return e->tag_start;
|
|
}
|
|
|
|
extern const UChar*
|
|
onig_get_callout_tag_end(regex_t* reg, int callout_num)
|
|
{
|
|
CalloutListEntry* e = onig_reg_callout_list_at(reg, callout_num);
|
|
CHECK_NULL_RETURN(e);
|
|
return e->tag_end;
|
|
}
|
|
|
|
|
|
extern OnigCalloutType
|
|
onig_get_callout_type_by_name_id(int name_id)
|
|
{
|
|
if (name_id < 0 || name_id >= GlobalCalloutNameList->n)
|
|
return 0;
|
|
|
|
return GlobalCalloutNameList->v[name_id].type;
|
|
}
|
|
|
|
extern OnigCalloutFunc
|
|
onig_get_callout_start_func_by_name_id(int name_id)
|
|
{
|
|
if (name_id < 0 || name_id >= GlobalCalloutNameList->n)
|
|
return 0;
|
|
|
|
return GlobalCalloutNameList->v[name_id].start_func;
|
|
}
|
|
|
|
extern OnigCalloutFunc
|
|
onig_get_callout_end_func_by_name_id(int name_id)
|
|
{
|
|
if (name_id < 0 || name_id >= GlobalCalloutNameList->n)
|
|
return 0;
|
|
|
|
return GlobalCalloutNameList->v[name_id].end_func;
|
|
}
|
|
|
|
extern int
|
|
onig_get_callout_in_by_name_id(int name_id)
|
|
{
|
|
if (name_id < 0 || name_id >= GlobalCalloutNameList->n)
|
|
return 0;
|
|
|
|
return GlobalCalloutNameList->v[name_id].in;
|
|
}
|
|
|
|
static int
|
|
get_callout_arg_num_by_name_id(int name_id)
|
|
{
|
|
return GlobalCalloutNameList->v[name_id].arg_num;
|
|
}
|
|
|
|
static int
|
|
get_callout_opt_arg_num_by_name_id(int name_id)
|
|
{
|
|
return GlobalCalloutNameList->v[name_id].opt_arg_num;
|
|
}
|
|
|
|
static unsigned int
|
|
get_callout_arg_type_by_name_id(int name_id, int index)
|
|
{
|
|
return GlobalCalloutNameList->v[name_id].arg_types[index];
|
|
}
|
|
|
|
static OnigValue
|
|
get_callout_opt_default_by_name_id(int name_id, int index)
|
|
{
|
|
return GlobalCalloutNameList->v[name_id].opt_defaults[index];
|
|
}
|
|
|
|
extern UChar*
|
|
onig_get_callout_name_by_name_id(int name_id)
|
|
{
|
|
if (name_id < 0 || name_id >= GlobalCalloutNameList->n)
|
|
return 0;
|
|
|
|
return GlobalCalloutNameList->v[name_id].name;
|
|
}
|
|
|
|
extern int
|
|
onig_global_callout_names_free(void)
|
|
{
|
|
free_callout_func_list(GlobalCalloutNameList);
|
|
GlobalCalloutNameList = 0;
|
|
|
|
global_callout_name_table_free();
|
|
return ONIG_NORMAL;
|
|
}
|
|
|
|
|
|
typedef st_table CalloutTagTable;
|
|
typedef intptr_t CalloutTagVal;
|
|
|
|
#define CALLOUT_TAG_LIST_FLAG_TAG_EXIST (1<<0)
|
|
|
|
static int
|
|
i_callout_callout_list_set(UChar* key, CalloutTagVal e, void* arg)
|
|
{
|
|
int num;
|
|
RegexExt* ext = (RegexExt* )arg;
|
|
|
|
num = (int )e - 1;
|
|
ext->callout_list[num].flag |= CALLOUT_TAG_LIST_FLAG_TAG_EXIST;
|
|
return ST_CONTINUE;
|
|
}
|
|
|
|
static int
|
|
setup_ext_callout_list_values(regex_t* reg)
|
|
{
|
|
int i, j;
|
|
RegexExt* ext;
|
|
|
|
ext = reg->extp;
|
|
if (IS_NOT_NULL(ext->tag_table)) {
|
|
onig_st_foreach((CalloutTagTable *)ext->tag_table, i_callout_callout_list_set,
|
|
(st_data_t )ext);
|
|
}
|
|
|
|
for (i = 0; i < ext->callout_num; i++) {
|
|
CalloutListEntry* e = ext->callout_list + i;
|
|
if (e->of == ONIG_CALLOUT_OF_NAME) {
|
|
for (j = 0; j < e->u.arg.num; j++) {
|
|
if (e->u.arg.types[j] == ONIG_TYPE_TAG) {
|
|
UChar* start;
|
|
UChar* end;
|
|
int num;
|
|
start = e->u.arg.vals[j].s.start;
|
|
end = e->u.arg.vals[j].s.end;
|
|
num = onig_get_callout_num_by_tag(reg, start, end);
|
|
if (num < 0) return num;
|
|
e->u.arg.vals[j].tag = num;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
return ONIG_NORMAL;
|
|
}
|
|
|
|
extern int
|
|
onig_callout_tag_is_exist_at_callout_num(regex_t* reg, int callout_num)
|
|
{
|
|
RegexExt* ext = reg->extp;
|
|
|
|
if (IS_NULL(ext) || IS_NULL(ext->callout_list)) return 0;
|
|
if (callout_num > ext->callout_num) return 0;
|
|
|
|
return (ext->callout_list[callout_num].flag &
|
|
CALLOUT_TAG_LIST_FLAG_TAG_EXIST) != 0;
|
|
}
|
|
|
|
static int
|
|
i_free_callout_tag_entry(UChar* key, CalloutTagVal e, void* arg ARG_UNUSED)
|
|
{
|
|
xfree(key);
|
|
return ST_DELETE;
|
|
}
|
|
|
|
static int
|
|
callout_tag_table_clear(CalloutTagTable* t)
|
|
{
|
|
if (IS_NOT_NULL(t)) {
|
|
onig_st_foreach(t, i_free_callout_tag_entry, 0);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
extern int
|
|
onig_callout_tag_table_free(void* table)
|
|
{
|
|
CalloutTagTable* t = (CalloutTagTable* )table;
|
|
|
|
if (IS_NOT_NULL(t)) {
|
|
int r = callout_tag_table_clear(t);
|
|
if (r != 0) return r;
|
|
|
|
onig_st_free_table(t);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
extern int
|
|
onig_get_callout_num_by_tag(regex_t* reg,
|
|
const UChar* tag, const UChar* tag_end)
|
|
{
|
|
int r;
|
|
RegexExt* ext;
|
|
CalloutTagVal e;
|
|
|
|
ext = reg->extp;
|
|
if (IS_NULL(ext) || IS_NULL(ext->tag_table))
|
|
return ONIGERR_INVALID_CALLOUT_TAG_NAME;
|
|
|
|
r = onig_st_lookup_strend(ext->tag_table, tag, tag_end,
|
|
(HashDataType* )((void* )(&e)));
|
|
if (r == 0) return ONIGERR_INVALID_CALLOUT_TAG_NAME;
|
|
return (int )e;
|
|
}
|
|
|
|
static CalloutTagVal
|
|
callout_tag_find(CalloutTagTable* t, const UChar* name, const UChar* name_end)
|
|
{
|
|
CalloutTagVal e;
|
|
|
|
e = -1;
|
|
if (IS_NOT_NULL(t)) {
|
|
onig_st_lookup_strend(t, name, name_end, (HashDataType* )((void* )(&e)));
|
|
}
|
|
return e;
|
|
}
|
|
|
|
static int
|
|
callout_tag_table_new(CalloutTagTable** rt)
|
|
{
|
|
CalloutTagTable* t;
|
|
|
|
*rt = 0;
|
|
t = onig_st_init_strend_table_with_size(INIT_TAG_NAMES_ALLOC_NUM);
|
|
CHECK_NULL_RETURN_MEMERR(t);
|
|
|
|
*rt = t;
|
|
return ONIG_NORMAL;
|
|
}
|
|
|
|
static int
|
|
callout_tag_entry_raw(ScanEnv* env, CalloutTagTable* t, UChar* name,
|
|
UChar* name_end, CalloutTagVal entry_val)
|
|
{
|
|
int r;
|
|
CalloutTagVal val;
|
|
|
|
if (name_end - name <= 0)
|
|
return ONIGERR_INVALID_CALLOUT_TAG_NAME;
|
|
|
|
val = callout_tag_find(t, name, name_end);
|
|
if (val >= 0) {
|
|
onig_scan_env_set_error_string(env, ONIGERR_MULTIPLEX_DEFINED_NAME,
|
|
name, name_end);
|
|
return ONIGERR_MULTIPLEX_DEFINED_NAME;
|
|
}
|
|
|
|
r = onig_st_insert_strend(t, name, name_end, (HashDataType )entry_val);
|
|
if (r < 0) return r;
|
|
|
|
return ONIG_NORMAL;
|
|
}
|
|
|
|
static int
|
|
ext_ensure_tag_table(regex_t* reg)
|
|
{
|
|
int r;
|
|
RegexExt* ext;
|
|
CalloutTagTable* t;
|
|
|
|
ext = onig_get_regex_ext(reg);
|
|
CHECK_NULL_RETURN_MEMERR(ext);
|
|
|
|
if (IS_NULL(ext->tag_table)) {
|
|
r = callout_tag_table_new(&t);
|
|
if (r != ONIG_NORMAL) return r;
|
|
|
|
ext->tag_table = t;
|
|
}
|
|
|
|
return ONIG_NORMAL;
|
|
}
|
|
|
|
static int
|
|
callout_tag_entry(ScanEnv* env, regex_t* reg, UChar* name, UChar* name_end,
|
|
CalloutTagVal entry_val)
|
|
{
|
|
int r;
|
|
RegexExt* ext;
|
|
CalloutListEntry* e;
|
|
|
|
r = ext_ensure_tag_table(reg);
|
|
if (r != ONIG_NORMAL) return r;
|
|
|
|
ext = onig_get_regex_ext(reg);
|
|
CHECK_NULL_RETURN_MEMERR(ext);
|
|
CHECK_NULL_RETURN_MEMERR(ext->tag_table);
|
|
r = callout_tag_entry_raw(env, ext->tag_table, name, name_end, entry_val);
|
|
|
|
e = onig_reg_callout_list_at(reg, (int )entry_val);
|
|
CHECK_NULL_RETURN_MEMERR(e);
|
|
e->tag_start = name;
|
|
e->tag_end = name_end;
|
|
|
|
return r;
|
|
}
|
|
|
|
#endif /* USE_CALLOUT */
|
|
|
|
|
|
#define INIT_SCANENV_MEMENV_ALLOC_SIZE 16
|
|
|
|
static void
|
|
scan_env_clear(ScanEnv* env)
|
|
{
|
|
MEM_STATUS_CLEAR(env->capture_history);
|
|
MEM_STATUS_CLEAR(env->bt_mem_start);
|
|
MEM_STATUS_CLEAR(env->bt_mem_end);
|
|
MEM_STATUS_CLEAR(env->backrefed_mem);
|
|
env->error = (UChar* )NULL;
|
|
env->error_end = (UChar* )NULL;
|
|
env->num_call = 0;
|
|
|
|
#ifdef USE_CALL
|
|
env->unset_addr_list = NULL;
|
|
env->has_call_zero = 0;
|
|
#endif
|
|
|
|
env->num_mem = 0;
|
|
env->num_named = 0;
|
|
env->mem_alloc = 0;
|
|
env->mem_env_dynamic = (MemEnv* )NULL;
|
|
|
|
xmemset(env->mem_env_static, 0, sizeof(env->mem_env_static));
|
|
|
|
env->parse_depth = 0;
|
|
env->keep_num = 0;
|
|
env->save_num = 0;
|
|
env->save_alloc_num = 0;
|
|
env->saves = 0;
|
|
}
|
|
|
|
static int
|
|
scan_env_add_mem_entry(ScanEnv* env)
|
|
{
|
|
int i, need, alloc;
|
|
MemEnv* p;
|
|
|
|
need = env->num_mem + 1;
|
|
if (need > MaxCaptureNum && MaxCaptureNum != 0)
|
|
return ONIGERR_TOO_MANY_CAPTURES;
|
|
|
|
if (need >= SCANENV_MEMENV_SIZE) {
|
|
if (env->mem_alloc <= need) {
|
|
if (IS_NULL(env->mem_env_dynamic)) {
|
|
alloc = INIT_SCANENV_MEMENV_ALLOC_SIZE;
|
|
p = (MemEnv* )xmalloc(sizeof(MemEnv) * alloc);
|
|
CHECK_NULL_RETURN_MEMERR(p);
|
|
xmemcpy(p, env->mem_env_static, sizeof(env->mem_env_static));
|
|
}
|
|
else {
|
|
alloc = env->mem_alloc * 2;
|
|
p = (MemEnv* )xrealloc(env->mem_env_dynamic, sizeof(MemEnv) * alloc, sizeof(MemEnv)*env->mem_alloc);
|
|
CHECK_NULL_RETURN_MEMERR(p);
|
|
}
|
|
|
|
for (i = env->num_mem + 1; i < alloc; i++) {
|
|
p[i].node = NULL_NODE;
|
|
#if 0
|
|
p[i].in = 0;
|
|
p[i].recursion = 0;
|
|
#endif
|
|
}
|
|
|
|
env->mem_env_dynamic = p;
|
|
env->mem_alloc = alloc;
|
|
}
|
|
}
|
|
|
|
env->num_mem++;
|
|
return env->num_mem;
|
|
}
|
|
|
|
static int
|
|
scan_env_set_mem_node(ScanEnv* env, int num, Node* node)
|
|
{
|
|
if (env->num_mem >= num)
|
|
SCANENV_MEMENV(env)[num].node = node;
|
|
else
|
|
return ONIGERR_PARSER_BUG;
|
|
return 0;
|
|
}
|
|
|
|
extern void
|
|
onig_node_free(Node* node)
|
|
{
|
|
start:
|
|
if (IS_NULL(node)) return ;
|
|
|
|
#ifdef DEBUG_NODE_FREE
|
|
fprintf(stderr, "onig_node_free: %p\n", node);
|
|
#endif
|
|
|
|
switch (NODE_TYPE(node)) {
|
|
case NODE_STRING:
|
|
if (STR_(node)->capacity != 0 &&
|
|
IS_NOT_NULL(STR_(node)->s) && STR_(node)->s != STR_(node)->buf) {
|
|
xfree(STR_(node)->s);
|
|
}
|
|
break;
|
|
|
|
case NODE_LIST:
|
|
case NODE_ALT:
|
|
onig_node_free(NODE_CAR(node));
|
|
{
|
|
Node* next_node = NODE_CDR(node);
|
|
|
|
xfree(node);
|
|
node = next_node;
|
|
goto start;
|
|
}
|
|
break;
|
|
|
|
case NODE_CCLASS:
|
|
{
|
|
CClassNode* cc = CCLASS_(node);
|
|
|
|
if (cc->mbuf)
|
|
bbuf_free(cc->mbuf);
|
|
}
|
|
break;
|
|
|
|
case NODE_BACKREF:
|
|
if (IS_NOT_NULL(BACKREF_(node)->back_dynamic))
|
|
xfree(BACKREF_(node)->back_dynamic);
|
|
break;
|
|
|
|
case NODE_BAG:
|
|
if (NODE_BODY(node))
|
|
onig_node_free(NODE_BODY(node));
|
|
|
|
{
|
|
BagNode* en = BAG_(node);
|
|
if (en->type == BAG_IF_ELSE) {
|
|
onig_node_free(en->te.Then);
|
|
onig_node_free(en->te.Else);
|
|
}
|
|
}
|
|
break;
|
|
|
|
case NODE_QUANT:
|
|
case NODE_ANCHOR:
|
|
if (NODE_BODY(node))
|
|
onig_node_free(NODE_BODY(node));
|
|
break;
|
|
|
|
case NODE_CTYPE:
|
|
case NODE_CALL:
|
|
case NODE_GIMMICK:
|
|
break;
|
|
}
|
|
|
|
xfree(node);
|
|
}
|
|
|
|
static void
|
|
cons_node_free_alone(Node* node)
|
|
{
|
|
NODE_CAR(node) = 0;
|
|
NODE_CDR(node) = 0;
|
|
onig_node_free(node);
|
|
}
|
|
|
|
static Node*
|
|
node_new(void)
|
|
{
|
|
Node* node;
|
|
|
|
node = (Node* )xmalloc(sizeof(Node));
|
|
CHECK_NULL_RETURN(node);
|
|
xmemset(node, 0, sizeof(*node));
|
|
|
|
#ifdef DEBUG_NODE_FREE
|
|
fprintf(stderr, "node_new: %p\n", node);
|
|
#endif
|
|
return node;
|
|
}
|
|
|
|
|
|
static void
|
|
initialize_cclass(CClassNode* cc)
|
|
{
|
|
BITSET_CLEAR(cc->bs);
|
|
cc->flags = 0;
|
|
cc->mbuf = NULL;
|
|
}
|
|
|
|
static Node*
|
|
node_new_cclass(void)
|
|
{
|
|
Node* node = node_new();
|
|
CHECK_NULL_RETURN(node);
|
|
|
|
NODE_SET_TYPE(node, NODE_CCLASS);
|
|
initialize_cclass(CCLASS_(node));
|
|
return node;
|
|
}
|
|
|
|
static Node*
|
|
node_new_ctype(int type, int not, OnigOptionType options)
|
|
{
|
|
Node* node = node_new();
|
|
CHECK_NULL_RETURN(node);
|
|
|
|
NODE_SET_TYPE(node, NODE_CTYPE);
|
|
CTYPE_(node)->ctype = type;
|
|
CTYPE_(node)->not = not;
|
|
CTYPE_(node)->options = options;
|
|
CTYPE_(node)->ascii_mode = IS_ASCII_MODE_CTYPE_OPTION(type, options);
|
|
return node;
|
|
}
|
|
|
|
static Node*
|
|
node_new_anychar(void)
|
|
{
|
|
Node* node = node_new_ctype(CTYPE_ANYCHAR, 0, ONIG_OPTION_NONE);
|
|
return node;
|
|
}
|
|
|
|
static Node*
|
|
node_new_anychar_with_fixed_option(OnigOptionType option)
|
|
{
|
|
CtypeNode* ct;
|
|
Node* node;
|
|
|
|
node = node_new_anychar();
|
|
CHECK_NULL_RETURN(node);
|
|
|
|
ct = CTYPE_(node);
|
|
ct->options = option;
|
|
NODE_STATUS_ADD(node, FIXED_OPTION);
|
|
return node;
|
|
}
|
|
|
|
static int
|
|
node_new_no_newline(Node** node, ScanEnv* env)
|
|
{
|
|
Node* n;
|
|
|
|
n = node_new_anychar_with_fixed_option(ONIG_OPTION_NONE);
|
|
CHECK_NULL_RETURN_MEMERR(n);
|
|
*node = n;
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
node_new_true_anychar(Node** node, ScanEnv* env)
|
|
{
|
|
Node* n;
|
|
|
|
n = node_new_anychar_with_fixed_option(ONIG_OPTION_MULTILINE);
|
|
CHECK_NULL_RETURN_MEMERR(n);
|
|
*node = n;
|
|
return 0;
|
|
}
|
|
|
|
static Node*
|
|
node_new_list(Node* left, Node* right)
|
|
{
|
|
Node* node = node_new();
|
|
CHECK_NULL_RETURN(node);
|
|
|
|
NODE_SET_TYPE(node, NODE_LIST);
|
|
NODE_CAR(node) = left;
|
|
NODE_CDR(node) = right;
|
|
return node;
|
|
}
|
|
|
|
extern Node*
|
|
onig_node_new_list(Node* left, Node* right)
|
|
{
|
|
return node_new_list(left, right);
|
|
}
|
|
|
|
extern Node*
|
|
onig_node_list_add(Node* list, Node* x)
|
|
{
|
|
Node *n;
|
|
|
|
n = onig_node_new_list(x, NULL);
|
|
if (IS_NULL(n)) return NULL_NODE;
|
|
|
|
if (IS_NOT_NULL(list)) {
|
|
while (IS_NOT_NULL(NODE_CDR(list)))
|
|
list = NODE_CDR(list);
|
|
|
|
NODE_CDR(list) = n;
|
|
}
|
|
|
|
return n;
|
|
}
|
|
|
|
extern Node*
|
|
onig_node_new_alt(Node* left, Node* right)
|
|
{
|
|
Node* node = node_new();
|
|
CHECK_NULL_RETURN(node);
|
|
|
|
NODE_SET_TYPE(node, NODE_ALT);
|
|
NODE_CAR(node) = left;
|
|
NODE_CDR(node) = right;
|
|
return node;
|
|
}
|
|
|
|
static Node*
|
|
make_list_or_alt(NodeType type, int n, Node* ns[])
|
|
{
|
|
Node* r;
|
|
|
|
if (n <= 0) return NULL_NODE;
|
|
|
|
if (n == 1) {
|
|
r = node_new();
|
|
CHECK_NULL_RETURN(r);
|
|
NODE_SET_TYPE(r, type);
|
|
NODE_CAR(r) = ns[0];
|
|
NODE_CDR(r) = NULL_NODE;
|
|
}
|
|
else {
|
|
Node* right;
|
|
|
|
r = node_new();
|
|
CHECK_NULL_RETURN(r);
|
|
|
|
right = make_list_or_alt(type, n - 1, ns + 1);
|
|
if (IS_NULL(right)) {
|
|
onig_node_free(r);
|
|
return NULL_NODE;
|
|
}
|
|
|
|
NODE_SET_TYPE(r, type);
|
|
NODE_CAR(r) = ns[0];
|
|
NODE_CDR(r) = right;
|
|
}
|
|
|
|
return r;
|
|
}
|
|
|
|
static Node*
|
|
make_list(int n, Node* ns[])
|
|
{
|
|
return make_list_or_alt(NODE_LIST, n, ns);
|
|
}
|
|
|
|
static Node*
|
|
make_alt(int n, Node* ns[])
|
|
{
|
|
return make_list_or_alt(NODE_ALT, n, ns);
|
|
}
|
|
|
|
extern Node*
|
|
onig_node_new_anchor(int type, int ascii_mode)
|
|
{
|
|
Node* node = node_new();
|
|
CHECK_NULL_RETURN(node);
|
|
|
|
NODE_SET_TYPE(node, NODE_ANCHOR);
|
|
ANCHOR_(node)->type = type;
|
|
ANCHOR_(node)->char_len = -1;
|
|
ANCHOR_(node)->ascii_mode = ascii_mode;
|
|
return node;
|
|
}
|
|
|
|
static Node*
|
|
node_new_backref(int back_num, int* backrefs, int by_name,
|
|
#ifdef USE_BACKREF_WITH_LEVEL
|
|
int exist_level, int nest_level,
|
|
#endif
|
|
ScanEnv* env)
|
|
{
|
|
int i;
|
|
Node* node = node_new();
|
|
|
|
CHECK_NULL_RETURN(node);
|
|
|
|
NODE_SET_TYPE(node, NODE_BACKREF);
|
|
BACKREF_(node)->back_num = back_num;
|
|
BACKREF_(node)->back_dynamic = (int* )NULL;
|
|
if (by_name != 0)
|
|
NODE_STATUS_ADD(node, BY_NAME);
|
|
|
|
#ifdef USE_BACKREF_WITH_LEVEL
|
|
if (exist_level != 0) {
|
|
NODE_STATUS_ADD(node, NEST_LEVEL);
|
|
BACKREF_(node)->nest_level = nest_level;
|
|
}
|
|
#endif
|
|
|
|
for (i = 0; i < back_num; i++) {
|
|
if (backrefs[i] <= env->num_mem &&
|
|
IS_NULL(SCANENV_MEMENV(env)[backrefs[i]].node)) {
|
|
NODE_STATUS_ADD(node, RECURSION); /* /...(\1).../ */
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (back_num <= NODE_BACKREFS_SIZE) {
|
|
for (i = 0; i < back_num; i++)
|
|
BACKREF_(node)->back_static[i] = backrefs[i];
|
|
}
|
|
else {
|
|
int* p = (int* )xmalloc(sizeof(int) * back_num);
|
|
if (IS_NULL(p)) {
|
|
onig_node_free(node);
|
|
return NULL;
|
|
}
|
|
BACKREF_(node)->back_dynamic = p;
|
|
for (i = 0; i < back_num; i++)
|
|
p[i] = backrefs[i];
|
|
}
|
|
return node;
|
|
}
|
|
|
|
static Node*
|
|
node_new_backref_checker(int back_num, int* backrefs, int by_name,
|
|
#ifdef USE_BACKREF_WITH_LEVEL
|
|
int exist_level, int nest_level,
|
|
#endif
|
|
ScanEnv* env)
|
|
{
|
|
Node* node;
|
|
|
|
node = node_new_backref(back_num, backrefs, by_name,
|
|
#ifdef USE_BACKREF_WITH_LEVEL
|
|
exist_level, nest_level,
|
|
#endif
|
|
env);
|
|
CHECK_NULL_RETURN(node);
|
|
|
|
NODE_STATUS_ADD(node, CHECKER);
|
|
return node;
|
|
}
|
|
|
|
#ifdef USE_CALL
|
|
static Node*
|
|
node_new_call(UChar* name, UChar* name_end, int gnum, int by_number)
|
|
{
|
|
Node* node = node_new();
|
|
CHECK_NULL_RETURN(node);
|
|
|
|
NODE_SET_TYPE(node, NODE_CALL);
|
|
CALL_(node)->by_number = by_number;
|
|
CALL_(node)->name = name;
|
|
CALL_(node)->name_end = name_end;
|
|
CALL_(node)->group_num = gnum;
|
|
CALL_(node)->entry_count = 1;
|
|
return node;
|
|
}
|
|
#endif
|
|
|
|
static Node*
|
|
node_new_quantifier(int lower, int upper, int by_number)
|
|
{
|
|
Node* node = node_new();
|
|
CHECK_NULL_RETURN(node);
|
|
|
|
NODE_SET_TYPE(node, NODE_QUANT);
|
|
QUANT_(node)->lower = lower;
|
|
QUANT_(node)->upper = upper;
|
|
QUANT_(node)->greedy = 1;
|
|
QUANT_(node)->emptiness = BODY_IS_NOT_EMPTY;
|
|
QUANT_(node)->head_exact = NULL_NODE;
|
|
QUANT_(node)->next_head_exact = NULL_NODE;
|
|
QUANT_(node)->is_refered = 0;
|
|
if (by_number != 0)
|
|
NODE_STATUS_ADD(node, BY_NUMBER);
|
|
|
|
return node;
|
|
}
|
|
|
|
static Node*
|
|
node_new_bag(enum BagType type)
|
|
{
|
|
Node* node = node_new();
|
|
CHECK_NULL_RETURN(node);
|
|
|
|
NODE_SET_TYPE(node, NODE_BAG);
|
|
BAG_(node)->type = type;
|
|
|
|
switch (type) {
|
|
case BAG_MEMORY:
|
|
BAG_(node)->m.regnum = 0;
|
|
BAG_(node)->m.called_addr = -1;
|
|
BAG_(node)->m.entry_count = 1;
|
|
BAG_(node)->m.called_state = 0;
|
|
break;
|
|
|
|
case BAG_OPTION:
|
|
BAG_(node)->o.options = 0;
|
|
break;
|
|
|
|
case BAG_STOP_BACKTRACK:
|
|
break;
|
|
|
|
case BAG_IF_ELSE:
|
|
BAG_(node)->te.Then = 0;
|
|
BAG_(node)->te.Else = 0;
|
|
break;
|
|
}
|
|
|
|
BAG_(node)->opt_count = 0;
|
|
return node;
|
|
}
|
|
|
|
extern Node*
|
|
onig_node_new_bag(enum BagType type)
|
|
{
|
|
return node_new_bag(type);
|
|
}
|
|
|
|
static Node*
|
|
node_new_bag_if_else(Node* cond, Node* Then, Node* Else)
|
|
{
|
|
Node* n;
|
|
n = node_new_bag(BAG_IF_ELSE);
|
|
CHECK_NULL_RETURN(n);
|
|
|
|
NODE_BODY(n) = cond;
|
|
BAG_(n)->te.Then = Then;
|
|
BAG_(n)->te.Else = Else;
|
|
return n;
|
|
}
|
|
|
|
static Node*
|
|
node_new_memory(int is_named)
|
|
{
|
|
Node* node = node_new_bag(BAG_MEMORY);
|
|
CHECK_NULL_RETURN(node);
|
|
if (is_named != 0)
|
|
NODE_STATUS_ADD(node, NAMED_GROUP);
|
|
|
|
return node;
|
|
}
|
|
|
|
static Node*
|
|
node_new_option(OnigOptionType option)
|
|
{
|
|
Node* node = node_new_bag(BAG_OPTION);
|
|
CHECK_NULL_RETURN(node);
|
|
BAG_(node)->o.options = option;
|
|
return node;
|
|
}
|
|
|
|
static Node*
|
|
node_new_group(Node* content)
|
|
{
|
|
Node* node;
|
|
|
|
node = node_new();
|
|
CHECK_NULL_RETURN(node);
|
|
NODE_SET_TYPE(node, NODE_LIST);
|
|
NODE_CAR(node) = content;
|
|
NODE_CDR(node) = NULL_NODE;
|
|
|
|
return node;
|
|
}
|
|
|
|
static Node*
|
|
node_drop_group(Node* group)
|
|
{
|
|
Node* content;
|
|
|
|
content = NODE_CAR(group);
|
|
NODE_CAR(group) = NULL_NODE;
|
|
onig_node_free(group);
|
|
return content;
|
|
}
|
|
|
|
static int
|
|
node_new_fail(Node** node, ScanEnv* env)
|
|
{
|
|
*node = node_new();
|
|
CHECK_NULL_RETURN_MEMERR(*node);
|
|
|
|
NODE_SET_TYPE(*node, NODE_GIMMICK);
|
|
GIMMICK_(*node)->type = GIMMICK_FAIL;
|
|
return ONIG_NORMAL;
|
|
}
|
|
|
|
static int
|
|
node_new_save_gimmick(Node** node, enum SaveType save_type, ScanEnv* env)
|
|
{
|
|
int id;
|
|
int r;
|
|
|
|
r = save_entry(env, save_type, &id);
|
|
if (r != ONIG_NORMAL) return r;
|
|
|
|
*node = node_new();
|
|
CHECK_NULL_RETURN_MEMERR(*node);
|
|
|
|
NODE_SET_TYPE(*node, NODE_GIMMICK);
|
|
GIMMICK_(*node)->id = id;
|
|
GIMMICK_(*node)->type = GIMMICK_SAVE;
|
|
GIMMICK_(*node)->detail_type = (int )save_type;
|
|
|
|
return ONIG_NORMAL;
|
|
}
|
|
|
|
static int
|
|
node_new_update_var_gimmick(Node** node, enum UpdateVarType update_var_type,
|
|
int id, ScanEnv* env)
|
|
{
|
|
*node = node_new();
|
|
CHECK_NULL_RETURN_MEMERR(*node);
|
|
|
|
NODE_SET_TYPE(*node, NODE_GIMMICK);
|
|
GIMMICK_(*node)->id = id;
|
|
GIMMICK_(*node)->type = GIMMICK_UPDATE_VAR;
|
|
GIMMICK_(*node)->detail_type = (int )update_var_type;
|
|
|
|
return ONIG_NORMAL;
|
|
}
|
|
|
|
static int
|
|
node_new_keep(Node** node, ScanEnv* env)
|
|
{
|
|
int r;
|
|
|
|
r = node_new_save_gimmick(node, SAVE_KEEP, env);
|
|
if (r != 0) return r;
|
|
|
|
env->keep_num++;
|
|
return ONIG_NORMAL;
|
|
}
|
|
|
|
#ifdef USE_CALLOUT
|
|
|
|
extern void
|
|
onig_free_reg_callout_list(int n, CalloutListEntry* list)
|
|
{
|
|
int i;
|
|
int j;
|
|
|
|
if (IS_NULL(list)) return ;
|
|
|
|
for (i = 0; i < n; i++) {
|
|
if (list[i].of == ONIG_CALLOUT_OF_NAME) {
|
|
for (j = 0; j < list[i].u.arg.passed_num; j++) {
|
|
if (list[i].u.arg.types[j] == ONIG_TYPE_STRING) {
|
|
if (IS_NOT_NULL(list[i].u.arg.vals[j].s.start))
|
|
xfree(list[i].u.arg.vals[j].s.start);
|
|
}
|
|
}
|
|
}
|
|
else { /* ONIG_CALLOUT_OF_CONTENTS */
|
|
if (IS_NOT_NULL(list[i].u.content.start)) {
|
|
xfree((void* )list[i].u.content.start);
|
|
}
|
|
}
|
|
}
|
|
|
|
xfree(list);
|
|
}
|
|
|
|
extern CalloutListEntry*
|
|
onig_reg_callout_list_at(regex_t* reg, int num)
|
|
{
|
|
RegexExt* ext = reg->extp;
|
|
CHECK_NULL_RETURN(ext);
|
|
|
|
if (num <= 0 || num > ext->callout_num)
|
|
return 0;
|
|
|
|
num--;
|
|
return ext->callout_list + num;
|
|
}
|
|
|
|
static int
|
|
reg_callout_list_entry(ScanEnv* env, int* rnum)
|
|
{
|
|
#define INIT_CALLOUT_LIST_NUM 3
|
|
|
|
int num;
|
|
CalloutListEntry* list;
|
|
CalloutListEntry* e;
|
|
RegexExt* ext;
|
|
|
|
ext = onig_get_regex_ext(env->reg);
|
|
CHECK_NULL_RETURN_MEMERR(ext);
|
|
|
|
if (IS_NULL(ext->callout_list)) {
|
|
list = (CalloutListEntry* )xmalloc(sizeof(*list) * INIT_CALLOUT_LIST_NUM);
|
|
CHECK_NULL_RETURN_MEMERR(list);
|
|
|
|
ext->callout_list = list;
|
|
ext->callout_list_alloc = INIT_CALLOUT_LIST_NUM;
|
|
ext->callout_num = 0;
|
|
}
|
|
|
|
num = ext->callout_num + 1;
|
|
if (num > ext->callout_list_alloc) {
|
|
int alloc = ext->callout_list_alloc * 2;
|
|
list = (CalloutListEntry* )xrealloc(ext->callout_list,
|
|
sizeof(CalloutListEntry) * alloc,
|
|
sizeof(CalloutListEntry) * ext->callout_list_alloc);
|
|
CHECK_NULL_RETURN_MEMERR(list);
|
|
|
|
ext->callout_list = list;
|
|
ext->callout_list_alloc = alloc;
|
|
}
|
|
|
|
e = ext->callout_list + (num - 1);
|
|
|
|
e->flag = 0;
|
|
e->of = 0;
|
|
e->in = ONIG_CALLOUT_OF_CONTENTS;
|
|
e->type = 0;
|
|
e->tag_start = 0;
|
|
e->tag_end = 0;
|
|
e->start_func = 0;
|
|
e->end_func = 0;
|
|
e->u.arg.num = 0;
|
|
e->u.arg.passed_num = 0;
|
|
|
|
ext->callout_num = num;
|
|
*rnum = num;
|
|
return ONIG_NORMAL;
|
|
}
|
|
|
|
static int
|
|
node_new_callout(Node** node, OnigCalloutOf callout_of, int num, int id,
|
|
ScanEnv* env)
|
|
{
|
|
*node = node_new();
|
|
CHECK_NULL_RETURN_MEMERR(*node);
|
|
|
|
NODE_SET_TYPE(*node, NODE_GIMMICK);
|
|
GIMMICK_(*node)->id = id;
|
|
GIMMICK_(*node)->num = num;
|
|
GIMMICK_(*node)->type = GIMMICK_CALLOUT;
|
|
GIMMICK_(*node)->detail_type = (int )callout_of;
|
|
|
|
return ONIG_NORMAL;
|
|
}
|
|
#endif
|
|
|
|
static int
|
|
make_text_segment(Node** node, ScanEnv* env)
|
|
{
|
|
int r;
|
|
int i;
|
|
Node* x;
|
|
Node* ns[2];
|
|
|
|
/* \X == (?>\O(?:\Y\O)*) */
|
|
|
|
ns[1] = NULL_NODE;
|
|
|
|
r = ONIGERR_MEMORY;
|
|
ns[0] = onig_node_new_anchor(ANCR_NO_TEXT_SEGMENT_BOUNDARY, 0);
|
|
if (IS_NULL(ns[0])) goto err;
|
|
|
|
r = node_new_true_anychar(&ns[1], env);
|
|
if (r != 0) goto err1;
|
|
|
|
x = make_list(2, ns);
|
|
if (IS_NULL(x)) goto err;
|
|
ns[0] = x;
|
|
ns[1] = NULL_NODE;
|
|
|
|
x = node_new_quantifier(0, INFINITE_REPEAT, 1);
|
|
if (IS_NULL(x)) goto err;
|
|
|
|
NODE_BODY(x) = ns[0];
|
|
ns[0] = NULL_NODE;
|
|
ns[1] = x;
|
|
|
|
r = node_new_true_anychar(&ns[0], env);
|
|
if (r != 0) goto err1;
|
|
|
|
x = make_list(2, ns);
|
|
if (IS_NULL(x)) goto err;
|
|
|
|
ns[0] = x;
|
|
ns[1] = NULL_NODE;
|
|
|
|
x = node_new_bag(BAG_STOP_BACKTRACK);
|
|
if (IS_NULL(x)) goto err;
|
|
|
|
NODE_BODY(x) = ns[0];
|
|
|
|
*node = x;
|
|
return ONIG_NORMAL;
|
|
|
|
err:
|
|
r = ONIGERR_MEMORY;
|
|
err1:
|
|
for (i = 0; i < 2; i++) onig_node_free(ns[i]);
|
|
return r;
|
|
}
|
|
|
|
static int
|
|
make_absent_engine(Node** node, int pre_save_right_id, Node* absent,
|
|
Node* step_one, int lower, int upper, int possessive,
|
|
int is_range_cutter, ScanEnv* env)
|
|
{
|
|
int r;
|
|
int i;
|
|
int id;
|
|
Node* x;
|
|
Node* ns[4];
|
|
|
|
for (i = 0; i < 4; i++) ns[i] = NULL_NODE;
|
|
|
|
ns[1] = absent;
|
|
ns[3] = step_one; /* for err */
|
|
r = node_new_save_gimmick(&ns[0], SAVE_S, env);
|
|
if (r != 0) goto err;
|
|
|
|
id = GIMMICK_(ns[0])->id;
|
|
r = node_new_update_var_gimmick(&ns[2], UPDATE_VAR_RIGHT_RANGE_FROM_S_STACK,
|
|
id, env);
|
|
if (r != 0) goto err;
|
|
|
|
r = node_new_fail(&ns[3], env);
|
|
if (r != 0) goto err;
|
|
|
|
x = make_list(4, ns);
|
|
if (IS_NULL(x)) goto err0;
|
|
|
|
ns[0] = x;
|
|
ns[1] = step_one;
|
|
ns[2] = ns[3] = NULL_NODE;
|
|
|
|
x = make_alt(2, ns);
|
|
if (IS_NULL(x)) goto err0;
|
|
|
|
ns[0] = x;
|
|
|
|
x = node_new_quantifier(lower, upper, 0);
|
|
if (IS_NULL(x)) goto err0;
|
|
|
|
NODE_BODY(x) = ns[0];
|
|
ns[0] = x;
|
|
|
|
if (possessive != 0) {
|
|
x = node_new_bag(BAG_STOP_BACKTRACK);
|
|
if (IS_NULL(x)) goto err0;
|
|
|
|
NODE_BODY(x) = ns[0];
|
|
ns[0] = x;
|
|
}
|
|
|
|
r = node_new_update_var_gimmick(&ns[1], UPDATE_VAR_RIGHT_RANGE_FROM_STACK,
|
|
pre_save_right_id, env);
|
|
if (r != 0) goto err;
|
|
|
|
r = node_new_fail(&ns[2], env);
|
|
if (r != 0) goto err;
|
|
|
|
x = make_list(2, ns + 1);
|
|
if (IS_NULL(x)) goto err0;
|
|
|
|
ns[1] = x; ns[2] = NULL_NODE;
|
|
|
|
x = make_alt(2, ns);
|
|
if (IS_NULL(x)) goto err0;
|
|
|
|
if (is_range_cutter != 0)
|
|
NODE_STATUS_ADD(x, SUPER);
|
|
|
|
*node = x;
|
|
return ONIG_NORMAL;
|
|
|
|
err0:
|
|
r = ONIGERR_MEMORY;
|
|
err:
|
|
for (i = 0; i < 4; i++) onig_node_free(ns[i]);
|
|
return r;
|
|
}
|
|
|
|
static int
|
|
make_absent_tail(Node** node1, Node** node2, int pre_save_right_id,
|
|
ScanEnv* env)
|
|
{
|
|
int r;
|
|
int id;
|
|
Node* save;
|
|
Node* x;
|
|
Node* ns[2];
|
|
|
|
*node1 = *node2 = NULL_NODE;
|
|
save = ns[0] = ns[1] = NULL_NODE;
|
|
|
|
r = node_new_save_gimmick(&save, SAVE_RIGHT_RANGE, env);
|
|
if (r != 0) goto err;
|
|
|
|
id = GIMMICK_(save)->id;
|
|
r = node_new_update_var_gimmick(&ns[0], UPDATE_VAR_RIGHT_RANGE_FROM_STACK,
|
|
id, env);
|
|
if (r != 0) goto err;
|
|
|
|
r = node_new_fail(&ns[1], env);
|
|
if (r != 0) goto err;
|
|
|
|
x = make_list(2, ns);
|
|
if (IS_NULL(x)) goto err0;
|
|
|
|
ns[0] = NULL_NODE; ns[1] = x;
|
|
|
|
r = node_new_update_var_gimmick(&ns[0], UPDATE_VAR_RIGHT_RANGE_FROM_STACK,
|
|
pre_save_right_id, env);
|
|
if (r != 0) goto err;
|
|
|
|
x = make_alt(2, ns);
|
|
if (IS_NULL(x)) goto err0;
|
|
|
|
*node1 = save;
|
|
*node2 = x;
|
|
return ONIG_NORMAL;
|
|
|
|
err0:
|
|
r = ONIGERR_MEMORY;
|
|
err:
|
|
onig_node_free(save);
|
|
onig_node_free(ns[0]);
|
|
onig_node_free(ns[1]);
|
|
return r;
|
|
}
|
|
|
|
static int
|
|
make_range_clear(Node** node, ScanEnv* env)
|
|
{
|
|
int r;
|
|
int id;
|
|
Node* save;
|
|
Node* x;
|
|
Node* ns[2];
|
|
|
|
*node = NULL_NODE;
|
|
save = ns[0] = ns[1] = NULL_NODE;
|
|
|
|
r = node_new_save_gimmick(&save, SAVE_RIGHT_RANGE, env);
|
|
if (r != 0) goto err;
|
|
|
|
id = GIMMICK_(save)->id;
|
|
r = node_new_update_var_gimmick(&ns[0], UPDATE_VAR_RIGHT_RANGE_FROM_STACK,
|
|
id, env);
|
|
if (r != 0) goto err;
|
|
|
|
r = node_new_fail(&ns[1], env);
|
|
if (r != 0) goto err;
|
|
|
|
x = make_list(2, ns);
|
|
if (IS_NULL(x)) goto err0;
|
|
|
|
ns[0] = NULL_NODE; ns[1] = x;
|
|
|
|
r = node_new_update_var_gimmick(&ns[0], UPDATE_VAR_RIGHT_RANGE_INIT, 0, env);
|
|
if (r != 0) goto err;
|
|
|
|
x = make_alt(2, ns);
|
|
if (IS_NULL(x)) goto err0;
|
|
|
|
NODE_STATUS_ADD(x, SUPER);
|
|
|
|
ns[0] = save;
|
|
ns[1] = x;
|
|
save = NULL_NODE;
|
|
x = make_list(2, ns);
|
|
if (IS_NULL(x)) goto err0;
|
|
|
|
*node = x;
|
|
return ONIG_NORMAL;
|
|
|
|
err0:
|
|
r = ONIGERR_MEMORY;
|
|
err:
|
|
onig_node_free(save);
|
|
onig_node_free(ns[0]);
|
|
onig_node_free(ns[1]);
|
|
return r;
|
|
}
|
|
|
|
static int
|
|
is_simple_one_char_repeat(Node* node, Node** rquant, Node** rbody,
|
|
int* is_possessive, ScanEnv* env)
|
|
{
|
|
Node* quant;
|
|
Node* body;
|
|
|
|
*rquant = *rbody = 0;
|
|
*is_possessive = 0;
|
|
|
|
if (NODE_TYPE(node) == NODE_QUANT) {
|
|
quant = node;
|
|
}
|
|
else {
|
|
if (NODE_TYPE(node) == NODE_BAG) {
|
|
BagNode* en = BAG_(node);
|
|
if (en->type == BAG_STOP_BACKTRACK) {
|
|
*is_possessive = 1;
|
|
quant = NODE_BAG_BODY(en);
|
|
if (NODE_TYPE(quant) != NODE_QUANT)
|
|
return 0;
|
|
}
|
|
else
|
|
return 0;
|
|
}
|
|
else
|
|
return 0;
|
|
}
|
|
|
|
if (QUANT_(quant)->greedy == 0)
|
|
return 0;
|
|
|
|
body = NODE_BODY(quant);
|
|
switch (NODE_TYPE(body)) {
|
|
case NODE_STRING:
|
|
{
|
|
int len;
|
|
StrNode* sn = STR_(body);
|
|
UChar *s = sn->s;
|
|
|
|
len = 0;
|
|
while (s < sn->end) {
|
|
s += enclen(env->enc, s);
|
|
len++;
|
|
}
|
|
if (len != 1)
|
|
return 0;
|
|
}
|
|
|
|
case NODE_CCLASS:
|
|
break;
|
|
|
|
default:
|
|
return 0;
|
|
break;
|
|
}
|
|
|
|
if (node != quant) {
|
|
NODE_BODY(node) = 0;
|
|
onig_node_free(node);
|
|
}
|
|
NODE_BODY(quant) = NULL_NODE;
|
|
*rquant = quant;
|
|
*rbody = body;
|
|
return 1;
|
|
}
|
|
|
|
static int
|
|
make_absent_tree_for_simple_one_char_repeat(Node** node, Node* absent, Node* quant,
|
|
Node* body, int possessive, ScanEnv* env)
|
|
{
|
|
int r;
|
|
int i;
|
|
int id1;
|
|
int lower, upper;
|
|
Node* x;
|
|
Node* ns[4];
|
|
|
|
*node = NULL_NODE;
|
|
r = ONIGERR_MEMORY;
|
|
ns[0] = ns[1] = NULL_NODE;
|
|
ns[2] = body, ns[3] = absent;
|
|
|
|
lower = QUANT_(quant)->lower;
|
|
upper = QUANT_(quant)->upper;
|
|
onig_node_free(quant);
|
|
|
|
r = node_new_save_gimmick(&ns[0], SAVE_RIGHT_RANGE, env);
|
|
if (r != 0) goto err;
|
|
|
|
id1 = GIMMICK_(ns[0])->id;
|
|
|
|
r = make_absent_engine(&ns[1], id1, absent, body, lower, upper, possessive,
|
|
0, env);
|
|
if (r != 0) goto err;
|
|
|
|
ns[2] = ns[3] = NULL_NODE;
|
|
|
|
r = node_new_update_var_gimmick(&ns[2], UPDATE_VAR_RIGHT_RANGE_FROM_STACK,
|
|
id1, env);
|
|
if (r != 0) goto err;
|
|
|
|
x = make_list(3, ns);
|
|
if (IS_NULL(x)) goto err0;
|
|
|
|
*node = x;
|
|
return ONIG_NORMAL;
|
|
|
|
err0:
|
|
r = ONIGERR_MEMORY;
|
|
err:
|
|
for (i = 0; i < 4; i++) onig_node_free(ns[i]);
|
|
return r;
|
|
}
|
|
|
|
static int
|
|
make_absent_tree(Node** node, Node* absent, Node* expr, int is_range_cutter,
|
|
ScanEnv* env)
|
|
{
|
|
int r;
|
|
int i;
|
|
int id1, id2;
|
|
int possessive;
|
|
Node* x;
|
|
Node* ns[7];
|
|
|
|
r = ONIGERR_MEMORY;
|
|
for (i = 0; i < 7; i++) ns[i] = NULL_NODE;
|
|
ns[4] = expr; ns[5] = absent;
|
|
|
|
if (is_range_cutter == 0) {
|
|
Node* quant;
|
|
Node* body;
|
|
|
|
if (expr == NULL_NODE) {
|
|
/* default expr \O* */
|
|
quant = node_new_quantifier(0, INFINITE_REPEAT, 0);
|
|
if (IS_NULL(quant)) goto err0;
|
|
|
|
r = node_new_true_anychar(&body, env);
|
|
if (r != 0) {
|
|
onig_node_free(quant);
|
|
goto err;
|
|
}
|
|
possessive = 0;
|
|
goto simple;
|
|
}
|
|
else {
|
|
if (is_simple_one_char_repeat(expr, &quant, &body, &possessive, env)) {
|
|
simple:
|
|
r = make_absent_tree_for_simple_one_char_repeat(node, absent, quant,
|
|
body, possessive, env);
|
|
if (r != 0) {
|
|
ns[4] = NULL_NODE;
|
|
onig_node_free(quant);
|
|
onig_node_free(body);
|
|
goto err;
|
|
}
|
|
|
|
return ONIG_NORMAL;
|
|
}
|
|
}
|
|
}
|
|
|
|
r = node_new_save_gimmick(&ns[0], SAVE_RIGHT_RANGE, env);
|
|
if (r != 0) goto err;
|
|
|
|
id1 = GIMMICK_(ns[0])->id;
|
|
|
|
r = node_new_save_gimmick(&ns[1], SAVE_S, env);
|
|
if (r != 0) goto err;
|
|
|
|
id2 = GIMMICK_(ns[1])->id;
|
|
|
|
r = node_new_true_anychar(&ns[3], env);
|
|
if (r != 0) goto err;
|
|
|
|
possessive = 1;
|
|
r = make_absent_engine(&ns[2], id1, absent, ns[3], 0, INFINITE_REPEAT,
|
|
possessive, is_range_cutter, env);
|
|
if (r != 0) goto err;
|
|
|
|
ns[3] = NULL_NODE;
|
|
ns[5] = NULL_NODE;
|
|
|
|
r = node_new_update_var_gimmick(&ns[3], UPDATE_VAR_S_FROM_STACK, id2, env);
|
|
if (r != 0) goto err;
|
|
|
|
if (is_range_cutter != 0) {
|
|
x = make_list(4, ns);
|
|
if (IS_NULL(x)) goto err0;
|
|
}
|
|
else {
|
|
r = make_absent_tail(&ns[5], &ns[6], id1, env);
|
|
if (r != 0) goto err;
|
|
|
|
x = make_list(7, ns);
|
|
if (IS_NULL(x)) goto err0;
|
|
}
|
|
|
|
*node = x;
|
|
return ONIG_NORMAL;
|
|
|
|
err0:
|
|
r = ONIGERR_MEMORY;
|
|
err:
|
|
for (i = 0; i < 7; i++) onig_node_free(ns[i]);
|
|
return r;
|
|
}
|
|
|
|
extern int
|
|
onig_node_str_cat(Node* node, const UChar* s, const UChar* end)
|
|
{
|
|
int addlen = (int )(end - s);
|
|
|
|
if (addlen > 0) {
|
|
int len = (int )(STR_(node)->end - STR_(node)->s);
|
|
|
|
if (STR_(node)->capacity > 0 || (len + addlen > NODE_STRING_BUF_SIZE - 1)) {
|
|
UChar* p;
|
|
int capa = len + addlen + NODE_STRING_MARGIN;
|
|
|
|
if (capa <= STR_(node)->capacity) {
|
|
onig_strcpy(STR_(node)->s + len, s, end);
|
|
}
|
|
else {
|
|
if (STR_(node)->s == STR_(node)->buf)
|
|
p = strcat_capa_from_static(STR_(node)->s, STR_(node)->end,
|
|
s, end, capa);
|
|
else
|
|
p = strcat_capa(STR_(node)->s, STR_(node)->end, s, end, capa, STR_(node)->capacity);
|
|
|
|
CHECK_NULL_RETURN_MEMERR(p);
|
|
STR_(node)->s = p;
|
|
STR_(node)->capacity = capa;
|
|
}
|
|
}
|
|
else {
|
|
onig_strcpy(STR_(node)->s + len, s, end);
|
|
}
|
|
STR_(node)->end = STR_(node)->s + len + addlen;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
extern int
|
|
onig_node_str_set(Node* node, const UChar* s, const UChar* end)
|
|
{
|
|
onig_node_str_clear(node);
|
|
return onig_node_str_cat(node, s, end);
|
|
}
|
|
|
|
static int
|
|
node_str_cat_char(Node* node, UChar c)
|
|
{
|
|
UChar s[1];
|
|
|
|
s[0] = c;
|
|
return onig_node_str_cat(node, s, s + 1);
|
|
}
|
|
|
|
extern void
|
|
onig_node_conv_to_str_node(Node* node, int flag)
|
|
{
|
|
NODE_SET_TYPE(node, NODE_STRING);
|
|
STR_(node)->flag = flag;
|
|
STR_(node)->capacity = 0;
|
|
STR_(node)->s = STR_(node)->buf;
|
|
STR_(node)->end = STR_(node)->buf;
|
|
}
|
|
|
|
extern void
|
|
onig_node_str_clear(Node* node)
|
|
{
|
|
if (STR_(node)->capacity != 0 &&
|
|
IS_NOT_NULL(STR_(node)->s) && STR_(node)->s != STR_(node)->buf) {
|
|
xfree(STR_(node)->s);
|
|
}
|
|
|
|
STR_(node)->capacity = 0;
|
|
STR_(node)->flag = 0;
|
|
STR_(node)->s = STR_(node)->buf;
|
|
STR_(node)->end = STR_(node)->buf;
|
|
}
|
|
|
|
static Node*
|
|
node_new_str(const UChar* s, const UChar* end)
|
|
{
|
|
Node* node = node_new();
|
|
CHECK_NULL_RETURN(node);
|
|
|
|
NODE_SET_TYPE(node, NODE_STRING);
|
|
STR_(node)->capacity = 0;
|
|
STR_(node)->flag = 0;
|
|
STR_(node)->s = STR_(node)->buf;
|
|
STR_(node)->end = STR_(node)->buf;
|
|
if (onig_node_str_cat(node, s, end)) {
|
|
onig_node_free(node);
|
|
return NULL;
|
|
}
|
|
return node;
|
|
}
|
|
|
|
extern Node*
|
|
onig_node_new_str(const UChar* s, const UChar* end)
|
|
{
|
|
return node_new_str(s, end);
|
|
}
|
|
|
|
static Node*
|
|
node_new_str_raw(UChar* s, UChar* end)
|
|
{
|
|
Node* node = node_new_str(s, end);
|
|
CHECK_NULL_RETURN(node);
|
|
NODE_STRING_SET_RAW(node);
|
|
return node;
|
|
}
|
|
|
|
static Node*
|
|
node_new_empty(void)
|
|
{
|
|
return node_new_str(NULL, NULL);
|
|
}
|
|
|
|
static Node*
|
|
node_new_str_raw_char(UChar c)
|
|
{
|
|
int i;
|
|
UChar p[1];
|
|
Node* node;
|
|
|
|
p[0] = c;
|
|
node = node_new_str_raw(p, p + 1);
|
|
CHECK_NULL_RETURN(node);
|
|
|
|
/* clear buf tail */
|
|
for (i = 1; i < NODE_STRING_BUF_SIZE; i++)
|
|
STR_(node)->buf[i] = '\0';
|
|
|
|
return node;
|
|
}
|
|
|
|
static Node*
|
|
str_node_split_last_char(Node* node, OnigEncoding enc)
|
|
{
|
|
const UChar *p;
|
|
Node* rn;
|
|
StrNode* sn;
|
|
|
|
sn = STR_(node);
|
|
rn = NULL_NODE;
|
|
if (sn->end > sn->s) {
|
|
p = onigenc_get_prev_char_head(enc, sn->s, sn->end);
|
|
if (p && p > sn->s) { /* can be split. */
|
|
rn = node_new_str(p, sn->end);
|
|
CHECK_NULL_RETURN(rn);
|
|
if (NODE_STRING_IS_RAW(node))
|
|
NODE_STRING_SET_RAW(rn);
|
|
|
|
sn->end = (UChar* )p;
|
|
}
|
|
}
|
|
return rn;
|
|
}
|
|
|
|
static int
|
|
str_node_can_be_split(Node* node, OnigEncoding enc)
|
|
{
|
|
StrNode* sn = STR_(node);
|
|
if (sn->end > sn->s) {
|
|
return ((enclen(enc, sn->s) < sn->end - sn->s) ? 1 : 0);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
extern int
|
|
onig_scan_unsigned_number(UChar** src, const UChar* end, OnigEncoding enc)
|
|
{
|
|
unsigned int num, val;
|
|
OnigCodePoint c;
|
|
UChar* p = *src;
|
|
PFETCH_READY;
|
|
|
|
num = 0;
|
|
while (! PEND) {
|
|
PFETCH(c);
|
|
if (IS_CODE_DIGIT_ASCII(enc, c)) {
|
|
val = (unsigned int )DIGITVAL(c);
|
|
if ((INT_MAX_LIMIT - val) / 10UL < num)
|
|
return -1; /* overflow */
|
|
|
|
num = num * 10 + val;
|
|
}
|
|
else {
|
|
PUNFETCH;
|
|
break;
|
|
}
|
|
}
|
|
*src = p;
|
|
return num;
|
|
}
|
|
|
|
static int
|
|
scan_unsigned_hexadecimal_number(UChar** src, UChar* end, int minlen,
|
|
int maxlen, OnigEncoding enc)
|
|
{
|
|
OnigCodePoint c;
|
|
unsigned int num, val;
|
|
int n;
|
|
UChar* p = *src;
|
|
PFETCH_READY;
|
|
|
|
num = 0;
|
|
n = 0;
|
|
while (! PEND && n < maxlen) {
|
|
PFETCH(c);
|
|
if (IS_CODE_XDIGIT_ASCII(enc, c)) {
|
|
n++;
|
|
val = (unsigned int )XDIGITVAL(enc,c);
|
|
if ((INT_MAX_LIMIT - val) / 16UL < num)
|
|
return ONIGERR_TOO_BIG_NUMBER; /* overflow */
|
|
|
|
num = (num << 4) + XDIGITVAL(enc,c);
|
|
}
|
|
else {
|
|
PUNFETCH;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (n < minlen)
|
|
return ONIGERR_INVALID_CODE_POINT_VALUE;
|
|
|
|
*src = p;
|
|
return num;
|
|
}
|
|
|
|
static int
|
|
scan_unsigned_octal_number(UChar** src, UChar* end, int maxlen,
|
|
OnigEncoding enc)
|
|
{
|
|
OnigCodePoint c;
|
|
unsigned int num, val;
|
|
UChar* p = *src;
|
|
PFETCH_READY;
|
|
|
|
num = 0;
|
|
while (! PEND && maxlen-- != 0) {
|
|
PFETCH(c);
|
|
if (IS_CODE_DIGIT_ASCII(enc, c) && c < '8') {
|
|
val = ODIGITVAL(c);
|
|
if ((INT_MAX_LIMIT - val) / 8UL < num)
|
|
return -1; /* overflow */
|
|
|
|
num = (num << 3) + val;
|
|
}
|
|
else {
|
|
PUNFETCH;
|
|
break;
|
|
}
|
|
}
|
|
*src = p;
|
|
return num;
|
|
}
|
|
|
|
|
|
#define BB_WRITE_CODE_POINT(bbuf,pos,code) \
|
|
BB_WRITE(bbuf, pos, &(code), SIZE_CODE_POINT)
|
|
|
|
/* data format:
|
|
[n][from-1][to-1][from-2][to-2] ... [from-n][to-n]
|
|
(all data size is OnigCodePoint)
|
|
*/
|
|
static int
|
|
new_code_range(BBuf** pbuf)
|
|
{
|
|
#define INIT_MULTI_BYTE_RANGE_SIZE (SIZE_CODE_POINT * 5)
|
|
int r;
|
|
OnigCodePoint n;
|
|
BBuf* bbuf;
|
|
|
|
bbuf = *pbuf = (BBuf* )xmalloc(sizeof(BBuf));
|
|
CHECK_NULL_RETURN_MEMERR(bbuf);
|
|
r = BB_INIT(bbuf, INIT_MULTI_BYTE_RANGE_SIZE);
|
|
if (r != 0) {
|
|
xfree(bbuf);
|
|
*pbuf = 0;
|
|
return r;
|
|
}
|
|
|
|
n = 0;
|
|
BB_WRITE_CODE_POINT(bbuf, 0, n);
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
add_code_range_to_buf(BBuf** pbuf, OnigCodePoint from, OnigCodePoint to)
|
|
{
|
|
int r, inc_n, pos;
|
|
int low, high, bound, x;
|
|
OnigCodePoint n, *data;
|
|
BBuf* bbuf;
|
|
|
|
if (from > to) {
|
|
n = from; from = to; to = n;
|
|
}
|
|
|
|
if (IS_NULL(*pbuf)) {
|
|
r = new_code_range(pbuf);
|
|
if (r != 0) return r;
|
|
bbuf = *pbuf;
|
|
n = 0;
|
|
}
|
|
else {
|
|
bbuf = *pbuf;
|
|
GET_CODE_POINT(n, bbuf->p);
|
|
}
|
|
data = (OnigCodePoint* )(bbuf->p);
|
|
data++;
|
|
|
|
for (low = 0, bound = n; low < bound; ) {
|
|
x = (low + bound) >> 1;
|
|
if (from > data[x*2 + 1])
|
|
low = x + 1;
|
|
else
|
|
bound = x;
|
|
}
|
|
|
|
high = (to == ~((OnigCodePoint )0)) ? n : low;
|
|
for (bound = n; high < bound; ) {
|
|
x = (high + bound) >> 1;
|
|
if (to + 1 >= data[x*2])
|
|
high = x + 1;
|
|
else
|
|
bound = x;
|
|
}
|
|
|
|
inc_n = low + 1 - high;
|
|
if (n + inc_n > ONIG_MAX_MULTI_BYTE_RANGES_NUM)
|
|
return ONIGERR_TOO_MANY_MULTI_BYTE_RANGES;
|
|
|
|
if (inc_n != 1) {
|
|
if (from > data[low*2])
|
|
from = data[low*2];
|
|
if (to < data[(high - 1)*2 + 1])
|
|
to = data[(high - 1)*2 + 1];
|
|
}
|
|
|
|
if (inc_n != 0 && (OnigCodePoint )high < n) {
|
|
int from_pos = SIZE_CODE_POINT * (1 + high * 2);
|
|
int to_pos = SIZE_CODE_POINT * (1 + (low + 1) * 2);
|
|
int size = (n - high) * 2 * SIZE_CODE_POINT;
|
|
|
|
if (inc_n > 0) {
|
|
BB_MOVE_RIGHT(bbuf, from_pos, to_pos, size);
|
|
}
|
|
else {
|
|
BB_MOVE_LEFT_REDUCE(bbuf, from_pos, to_pos);
|
|
}
|
|
}
|
|
|
|
pos = SIZE_CODE_POINT * (1 + low * 2);
|
|
BB_ENSURE_SIZE(bbuf, pos + SIZE_CODE_POINT * 2);
|
|
BB_WRITE_CODE_POINT(bbuf, pos, from);
|
|
BB_WRITE_CODE_POINT(bbuf, pos + SIZE_CODE_POINT, to);
|
|
n += inc_n;
|
|
BB_WRITE_CODE_POINT(bbuf, 0, n);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
add_code_range(BBuf** pbuf, ScanEnv* env, OnigCodePoint from, OnigCodePoint to)
|
|
{
|
|
if (from > to) {
|
|
if (IS_SYNTAX_BV(env->syntax, ONIG_SYN_ALLOW_EMPTY_RANGE_IN_CC))
|
|
return 0;
|
|
else
|
|
return ONIGERR_EMPTY_RANGE_IN_CHAR_CLASS;
|
|
}
|
|
|
|
return add_code_range_to_buf(pbuf, from, to);
|
|
}
|
|
|
|
static int
|
|
not_code_range_buf(OnigEncoding enc, BBuf* bbuf, BBuf** pbuf)
|
|
{
|
|
int r, i, n;
|
|
OnigCodePoint pre, from, *data, to = 0;
|
|
|
|
*pbuf = (BBuf* )NULL;
|
|
if (IS_NULL(bbuf)) {
|
|
set_all:
|
|
return SET_ALL_MULTI_BYTE_RANGE(enc, pbuf);
|
|
}
|
|
|
|
data = (OnigCodePoint* )(bbuf->p);
|
|
GET_CODE_POINT(n, data);
|
|
data++;
|
|
if (n <= 0) goto set_all;
|
|
|
|
r = 0;
|
|
pre = MBCODE_START_POS(enc);
|
|
for (i = 0; i < n; i++) {
|
|
from = data[i*2];
|
|
to = data[i*2+1];
|
|
if (pre <= from - 1) {
|
|
r = add_code_range_to_buf(pbuf, pre, from - 1);
|
|
if (r != 0) return r;
|
|
}
|
|
if (to == ~((OnigCodePoint )0)) break;
|
|
pre = to + 1;
|
|
}
|
|
if (to < ~((OnigCodePoint )0)) {
|
|
r = add_code_range_to_buf(pbuf, to + 1, ~((OnigCodePoint )0));
|
|
}
|
|
return r;
|
|
}
|
|
|
|
#define SWAP_BB_NOT(bbuf1, not1, bbuf2, not2) do {\
|
|
BBuf *tbuf; \
|
|
int tnot; \
|
|
tnot = not1; not1 = not2; not2 = tnot; \
|
|
tbuf = bbuf1; bbuf1 = bbuf2; bbuf2 = tbuf; \
|
|
} while (0)
|
|
|
|
static int
|
|
or_code_range_buf(OnigEncoding enc, BBuf* bbuf1, int not1,
|
|
BBuf* bbuf2, int not2, BBuf** pbuf)
|
|
{
|
|
int r;
|
|
OnigCodePoint i, n1, *data1;
|
|
OnigCodePoint from, to;
|
|
|
|
*pbuf = (BBuf* )NULL;
|
|
if (IS_NULL(bbuf1) && IS_NULL(bbuf2)) {
|
|
if (not1 != 0 || not2 != 0)
|
|
return SET_ALL_MULTI_BYTE_RANGE(enc, pbuf);
|
|
return 0;
|
|
}
|
|
|
|
r = 0;
|
|
if (IS_NULL(bbuf2))
|
|
SWAP_BB_NOT(bbuf1, not1, bbuf2, not2);
|
|
|
|
if (IS_NULL(bbuf1)) {
|
|
if (not1 != 0) {
|
|
return SET_ALL_MULTI_BYTE_RANGE(enc, pbuf);
|
|
}
|
|
else {
|
|
if (not2 == 0) {
|
|
return bbuf_clone(pbuf, bbuf2);
|
|
}
|
|
else {
|
|
return not_code_range_buf(enc, bbuf2, pbuf);
|
|
}
|
|
}
|
|
}
|
|
|
|
if (not1 != 0)
|
|
SWAP_BB_NOT(bbuf1, not1, bbuf2, not2);
|
|
|
|
data1 = (OnigCodePoint* )(bbuf1->p);
|
|
GET_CODE_POINT(n1, data1);
|
|
data1++;
|
|
|
|
if (not2 == 0 && not1 == 0) { /* 1 OR 2 */
|
|
r = bbuf_clone(pbuf, bbuf2);
|
|
}
|
|
else if (not1 == 0) { /* 1 OR (not 2) */
|
|
r = not_code_range_buf(enc, bbuf2, pbuf);
|
|
}
|
|
if (r != 0) return r;
|
|
|
|
for (i = 0; i < n1; i++) {
|
|
from = data1[i*2];
|
|
to = data1[i*2+1];
|
|
r = add_code_range_to_buf(pbuf, from, to);
|
|
if (r != 0) return r;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
and_code_range1(BBuf** pbuf, OnigCodePoint from1, OnigCodePoint to1,
|
|
OnigCodePoint* data, int n)
|
|
{
|
|
int i, r;
|
|
OnigCodePoint from2, to2;
|
|
|
|
for (i = 0; i < n; i++) {
|
|
from2 = data[i*2];
|
|
to2 = data[i*2+1];
|
|
if (from2 < from1) {
|
|
if (to2 < from1) continue;
|
|
else {
|
|
from1 = to2 + 1;
|
|
}
|
|
}
|
|
else if (from2 <= to1) {
|
|
if (to2 < to1) {
|
|
if (from1 <= from2 - 1) {
|
|
r = add_code_range_to_buf(pbuf, from1, from2-1);
|
|
if (r != 0) return r;
|
|
}
|
|
from1 = to2 + 1;
|
|
}
|
|
else {
|
|
to1 = from2 - 1;
|
|
}
|
|
}
|
|
else {
|
|
from1 = from2;
|
|
}
|
|
if (from1 > to1) break;
|
|
}
|
|
if (from1 <= to1) {
|
|
r = add_code_range_to_buf(pbuf, from1, to1);
|
|
if (r != 0) return r;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
and_code_range_buf(BBuf* bbuf1, int not1, BBuf* bbuf2, int not2, BBuf** pbuf)
|
|
{
|
|
int r;
|
|
OnigCodePoint i, j, n1, n2, *data1, *data2;
|
|
OnigCodePoint from, to, from1, to1, from2, to2;
|
|
|
|
*pbuf = (BBuf* )NULL;
|
|
if (IS_NULL(bbuf1)) {
|
|
if (not1 != 0 && IS_NOT_NULL(bbuf2)) /* not1 != 0 -> not2 == 0 */
|
|
return bbuf_clone(pbuf, bbuf2);
|
|
return 0;
|
|
}
|
|
else if (IS_NULL(bbuf2)) {
|
|
if (not2 != 0)
|
|
return bbuf_clone(pbuf, bbuf1);
|
|
return 0;
|
|
}
|
|
|
|
if (not1 != 0)
|
|
SWAP_BB_NOT(bbuf1, not1, bbuf2, not2);
|
|
|
|
data1 = (OnigCodePoint* )(bbuf1->p);
|
|
data2 = (OnigCodePoint* )(bbuf2->p);
|
|
GET_CODE_POINT(n1, data1);
|
|
GET_CODE_POINT(n2, data2);
|
|
data1++;
|
|
data2++;
|
|
|
|
if (not2 == 0 && not1 == 0) { /* 1 AND 2 */
|
|
for (i = 0; i < n1; i++) {
|
|
from1 = data1[i*2];
|
|
to1 = data1[i*2+1];
|
|
for (j = 0; j < n2; j++) {
|
|
from2 = data2[j*2];
|
|
to2 = data2[j*2+1];
|
|
if (from2 > to1) break;
|
|
if (to2 < from1) continue;
|
|
from = MAX(from1, from2);
|
|
to = MIN(to1, to2);
|
|
r = add_code_range_to_buf(pbuf, from, to);
|
|
if (r != 0) return r;
|
|
}
|
|
}
|
|
}
|
|
else if (not1 == 0) { /* 1 AND (not 2) */
|
|
for (i = 0; i < n1; i++) {
|
|
from1 = data1[i*2];
|
|
to1 = data1[i*2+1];
|
|
r = and_code_range1(pbuf, from1, to1, data2, n2);
|
|
if (r != 0) return r;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
and_cclass(CClassNode* dest, CClassNode* cc, OnigEncoding enc)
|
|
{
|
|
int r, not1, not2;
|
|
BBuf *buf1, *buf2, *pbuf;
|
|
BitSetRef bsr1, bsr2;
|
|
BitSet bs1, bs2;
|
|
|
|
not1 = IS_NCCLASS_NOT(dest);
|
|
bsr1 = dest->bs;
|
|
buf1 = dest->mbuf;
|
|
not2 = IS_NCCLASS_NOT(cc);
|
|
bsr2 = cc->bs;
|
|
buf2 = cc->mbuf;
|
|
|
|
if (not1 != 0) {
|
|
bitset_invert_to(bsr1, bs1);
|
|
bsr1 = bs1;
|
|
}
|
|
if (not2 != 0) {
|
|
bitset_invert_to(bsr2, bs2);
|
|
bsr2 = bs2;
|
|
}
|
|
bitset_and(bsr1, bsr2);
|
|
if (bsr1 != dest->bs) {
|
|
bitset_copy(dest->bs, bsr1);
|
|
}
|
|
if (not1 != 0) {
|
|
bitset_invert(dest->bs);
|
|
}
|
|
|
|
if (! ONIGENC_IS_SINGLEBYTE(enc)) {
|
|
if (not1 != 0 && not2 != 0) {
|
|
r = or_code_range_buf(enc, buf1, 0, buf2, 0, &pbuf);
|
|
}
|
|
else {
|
|
r = and_code_range_buf(buf1, not1, buf2, not2, &pbuf);
|
|
if (r == 0 && not1 != 0) {
|
|
BBuf *tbuf;
|
|
r = not_code_range_buf(enc, pbuf, &tbuf);
|
|
if (r != 0) {
|
|
bbuf_free(pbuf);
|
|
return r;
|
|
}
|
|
bbuf_free(pbuf);
|
|
pbuf = tbuf;
|
|
}
|
|
}
|
|
if (r != 0) return r;
|
|
|
|
dest->mbuf = pbuf;
|
|
bbuf_free(buf1);
|
|
return r;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
or_cclass(CClassNode* dest, CClassNode* cc, OnigEncoding enc)
|
|
{
|
|
int r, not1, not2;
|
|
BBuf *buf1, *buf2, *pbuf;
|
|
BitSetRef bsr1, bsr2;
|
|
BitSet bs1, bs2;
|
|
|
|
not1 = IS_NCCLASS_NOT(dest);
|
|
bsr1 = dest->bs;
|
|
buf1 = dest->mbuf;
|
|
not2 = IS_NCCLASS_NOT(cc);
|
|
bsr2 = cc->bs;
|
|
buf2 = cc->mbuf;
|
|
|
|
if (not1 != 0) {
|
|
bitset_invert_to(bsr1, bs1);
|
|
bsr1 = bs1;
|
|
}
|
|
if (not2 != 0) {
|
|
bitset_invert_to(bsr2, bs2);
|
|
bsr2 = bs2;
|
|
}
|
|
bitset_or(bsr1, bsr2);
|
|
if (bsr1 != dest->bs) {
|
|
bitset_copy(dest->bs, bsr1);
|
|
}
|
|
if (not1 != 0) {
|
|
bitset_invert(dest->bs);
|
|
}
|
|
|
|
if (! ONIGENC_IS_SINGLEBYTE(enc)) {
|
|
if (not1 != 0 && not2 != 0) {
|
|
r = and_code_range_buf(buf1, 0, buf2, 0, &pbuf);
|
|
}
|
|
else {
|
|
r = or_code_range_buf(enc, buf1, not1, buf2, not2, &pbuf);
|
|
if (r == 0 && not1 != 0) {
|
|
BBuf *tbuf;
|
|
r = not_code_range_buf(enc, pbuf, &tbuf);
|
|
if (r != 0) {
|
|
bbuf_free(pbuf);
|
|
return r;
|
|
}
|
|
bbuf_free(pbuf);
|
|
pbuf = tbuf;
|
|
}
|
|
}
|
|
if (r != 0) return r;
|
|
|
|
dest->mbuf = pbuf;
|
|
bbuf_free(buf1);
|
|
return r;
|
|
}
|
|
else
|
|
return 0;
|
|
}
|
|
|
|
static OnigCodePoint
|
|
conv_backslash_value(OnigCodePoint c, ScanEnv* env)
|
|
{
|
|
if (IS_SYNTAX_OP(env->syntax, ONIG_SYN_OP_ESC_CONTROL_CHARS)) {
|
|
switch (c) {
|
|
case 'n': return '\n';
|
|
case 't': return '\t';
|
|
case 'r': return '\r';
|
|
case 'f': return '\f';
|
|
case 'a': return '\007';
|
|
case 'b': return '\010';
|
|
case 'e': return '\033';
|
|
case 'v':
|
|
if (IS_SYNTAX_OP2(env->syntax, ONIG_SYN_OP2_ESC_V_VTAB))
|
|
return '\v';
|
|
break;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
return c;
|
|
}
|
|
|
|
static int
|
|
is_invalid_quantifier_target(Node* node)
|
|
{
|
|
switch (NODE_TYPE(node)) {
|
|
case NODE_ANCHOR:
|
|
case NODE_GIMMICK:
|
|
return 1;
|
|
break;
|
|
|
|
case NODE_BAG:
|
|
/* allow enclosed elements */
|
|
/* return is_invalid_quantifier_target(NODE_BODY(node)); */
|
|
break;
|
|
|
|
case NODE_LIST:
|
|
do {
|
|
if (! is_invalid_quantifier_target(NODE_CAR(node))) return 0;
|
|
} while (IS_NOT_NULL(node = NODE_CDR(node)));
|
|
return 0;
|
|
break;
|
|
|
|
case NODE_ALT:
|
|
do {
|
|
if (is_invalid_quantifier_target(NODE_CAR(node))) return 1;
|
|
} while (IS_NOT_NULL(node = NODE_CDR(node)));
|
|
break;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/* ?:0, *:1, +:2, ??:3, *?:4, +?:5 */
|
|
static int
|
|
quantifier_type_num(QuantNode* q)
|
|
{
|
|
if (q->greedy) {
|
|
if (q->lower == 0) {
|
|
if (q->upper == 1) return 0;
|
|
else if (IS_INFINITE_REPEAT(q->upper)) return 1;
|
|
}
|
|
else if (q->lower == 1) {
|
|
if (IS_INFINITE_REPEAT(q->upper)) return 2;
|
|
}
|
|
}
|
|
else {
|
|
if (q->lower == 0) {
|
|
if (q->upper == 1) return 3;
|
|
else if (IS_INFINITE_REPEAT(q->upper)) return 4;
|
|
}
|
|
else if (q->lower == 1) {
|
|
if (IS_INFINITE_REPEAT(q->upper)) return 5;
|
|
}
|
|
}
|
|
return -1;
|
|
}
|
|
|
|
|
|
enum ReduceType {
|
|
RQ_ASIS = 0, /* as is */
|
|
RQ_DEL = 1, /* delete parent */
|
|
RQ_A, /* to '*' */
|
|
RQ_AQ, /* to '*?' */
|
|
RQ_QQ, /* to '??' */
|
|
RQ_P_QQ, /* to '+)??' */
|
|
RQ_PQ_Q /* to '+?)?' */
|
|
};
|
|
|
|
static enum ReduceType ReduceTypeTable[6][6] = {
|
|
{RQ_DEL, RQ_A, RQ_A, RQ_QQ, RQ_AQ, RQ_ASIS}, /* '?' */
|
|
{RQ_DEL, RQ_DEL, RQ_DEL, RQ_P_QQ, RQ_P_QQ, RQ_DEL}, /* '*' */
|
|
{RQ_A, RQ_A, RQ_DEL, RQ_ASIS, RQ_P_QQ, RQ_DEL}, /* '+' */
|
|
{RQ_DEL, RQ_AQ, RQ_AQ, RQ_DEL, RQ_AQ, RQ_AQ}, /* '??' */
|
|
{RQ_DEL, RQ_DEL, RQ_DEL, RQ_DEL, RQ_DEL, RQ_DEL}, /* '*?' */
|
|
{RQ_ASIS, RQ_PQ_Q, RQ_DEL, RQ_AQ, RQ_AQ, RQ_DEL} /* '+?' */
|
|
};
|
|
|
|
extern void
|
|
onig_reduce_nested_quantifier(Node* pnode, Node* cnode)
|
|
{
|
|
int pnum, cnum;
|
|
QuantNode *p, *c;
|
|
|
|
p = QUANT_(pnode);
|
|
c = QUANT_(cnode);
|
|
pnum = quantifier_type_num(p);
|
|
cnum = quantifier_type_num(c);
|
|
if (pnum < 0 || cnum < 0) {
|
|
if ((p->lower == p->upper) && ! IS_INFINITE_REPEAT(p->upper)) {
|
|
if ((c->lower == c->upper) && ! IS_INFINITE_REPEAT(c->upper)) {
|
|
int n = onig_positive_int_multiply(p->lower, c->lower);
|
|
if (n >= 0) {
|
|
p->lower = p->upper = n;
|
|
NODE_BODY(pnode) = NODE_BODY(cnode);
|
|
goto remove_cnode;
|
|
}
|
|
}
|
|
}
|
|
|
|
return ;
|
|
}
|
|
|
|
switch(ReduceTypeTable[cnum][pnum]) {
|
|
case RQ_DEL:
|
|
*pnode = *cnode;
|
|
break;
|
|
case RQ_A:
|
|
NODE_BODY(pnode) = NODE_BODY(cnode);
|
|
p->lower = 0; p->upper = INFINITE_REPEAT; p->greedy = 1;
|
|
break;
|
|
case RQ_AQ:
|
|
NODE_BODY(pnode) = NODE_BODY(cnode);
|
|
p->lower = 0; p->upper = INFINITE_REPEAT; p->greedy = 0;
|
|
break;
|
|
case RQ_QQ:
|
|
NODE_BODY(pnode) = NODE_BODY(cnode);
|
|
p->lower = 0; p->upper = 1; p->greedy = 0;
|
|
break;
|
|
case RQ_P_QQ:
|
|
NODE_BODY(pnode) = cnode;
|
|
p->lower = 0; p->upper = 1; p->greedy = 0;
|
|
c->lower = 1; c->upper = INFINITE_REPEAT; c->greedy = 1;
|
|
return ;
|
|
break;
|
|
case RQ_PQ_Q:
|
|
NODE_BODY(pnode) = cnode;
|
|
p->lower = 0; p->upper = 1; p->greedy = 1;
|
|
c->lower = 1; c->upper = INFINITE_REPEAT; c->greedy = 0;
|
|
return ;
|
|
break;
|
|
case RQ_ASIS:
|
|
NODE_BODY(pnode) = cnode;
|
|
return ;
|
|
break;
|
|
}
|
|
|
|
remove_cnode:
|
|
NODE_BODY(cnode) = NULL_NODE;
|
|
onig_node_free(cnode);
|
|
}
|
|
|
|
static int
|
|
node_new_general_newline(Node** node, ScanEnv* env)
|
|
{
|
|
int r;
|
|
int dlen, alen;
|
|
UChar buf[ONIGENC_CODE_TO_MBC_MAXLEN * 2];
|
|
Node* crnl;
|
|
Node* ncc;
|
|
Node* x;
|
|
CClassNode* cc;
|
|
|
|
dlen = ONIGENC_CODE_TO_MBC(env->enc, 0x0d, buf);
|
|
if (dlen < 0) return dlen;
|
|
alen = ONIGENC_CODE_TO_MBC(env->enc, 0x0a, buf + dlen);
|
|
if (alen < 0) return alen;
|
|
|
|
crnl = node_new_str_raw(buf, buf + dlen + alen);
|
|
CHECK_NULL_RETURN_MEMERR(crnl);
|
|
|
|
ncc = node_new_cclass();
|
|
if (IS_NULL(ncc)) goto err2;
|
|
|
|
cc = CCLASS_(ncc);
|
|
if (dlen == 1) {
|
|
bitset_set_range(cc->bs, 0x0a, 0x0d);
|
|
}
|
|
else {
|
|
r = add_code_range(&(cc->mbuf), env, 0x0a, 0x0d);
|
|
if (r != 0) {
|
|
err1:
|
|
onig_node_free(ncc);
|
|
err2:
|
|
onig_node_free(crnl);
|
|
return ONIGERR_MEMORY;
|
|
}
|
|
}
|
|
|
|
if (ONIGENC_IS_UNICODE_ENCODING(env->enc)) {
|
|
r = add_code_range(&(cc->mbuf), env, 0x85, 0x85);
|
|
if (r != 0) goto err1;
|
|
r = add_code_range(&(cc->mbuf), env, 0x2028, 0x2029);
|
|
if (r != 0) goto err1;
|
|
}
|
|
|
|
x = node_new_bag_if_else(crnl, 0, ncc);
|
|
if (IS_NULL(x)) goto err1;
|
|
|
|
*node = x;
|
|
return 0;
|
|
}
|
|
|
|
enum TokenSyms {
|
|
TK_EOT = 0, /* end of token */
|
|
TK_RAW_BYTE = 1,
|
|
TK_CHAR,
|
|
TK_STRING,
|
|
TK_CODE_POINT,
|
|
TK_ANYCHAR,
|
|
TK_CHAR_TYPE,
|
|
TK_BACKREF,
|
|
TK_CALL,
|
|
TK_ANCHOR,
|
|
TK_REPEAT,
|
|
TK_INTERVAL,
|
|
TK_ANYCHAR_ANYTIME, /* SQL '%' == .* */
|
|
TK_ALT,
|
|
TK_SUBEXP_OPEN,
|
|
TK_SUBEXP_CLOSE,
|
|
TK_CC_OPEN,
|
|
TK_QUOTE_OPEN,
|
|
TK_CHAR_PROPERTY, /* \p{...}, \P{...} */
|
|
TK_KEEP, /* \K */
|
|
TK_GENERAL_NEWLINE, /* \R */
|
|
TK_NO_NEWLINE, /* \N */
|
|
TK_TRUE_ANYCHAR, /* \O */
|
|
TK_TEXT_SEGMENT, /* \X */
|
|
|
|
/* in cc */
|
|
TK_CC_CLOSE,
|
|
TK_CC_RANGE,
|
|
TK_POSIX_BRACKET_OPEN,
|
|
TK_CC_AND, /* && */
|
|
TK_CC_CC_OPEN /* [ */
|
|
};
|
|
|
|
typedef struct {
|
|
enum TokenSyms type;
|
|
int escaped;
|
|
int base; /* is number: 8, 16 (used in [....]) */
|
|
UChar* backp;
|
|
union {
|
|
UChar* s;
|
|
int c;
|
|
OnigCodePoint code;
|
|
int anchor;
|
|
int subtype;
|
|
struct {
|
|
int lower;
|
|
int upper;
|
|
int greedy;
|
|
int possessive;
|
|
} repeat;
|
|
struct {
|
|
int num;
|
|
int ref1;
|
|
int* refs;
|
|
int by_name;
|
|
#ifdef USE_BACKREF_WITH_LEVEL
|
|
int exist_level;
|
|
int level; /* \k<name+n> */
|
|
#endif
|
|
} backref;
|
|
struct {
|
|
UChar* name;
|
|
UChar* name_end;
|
|
int gnum;
|
|
int by_number;
|
|
} call;
|
|
struct {
|
|
int ctype;
|
|
int not;
|
|
} prop;
|
|
} u;
|
|
} PToken;
|
|
|
|
|
|
static int
|
|
fetch_interval_quantifier(UChar** src, UChar* end, PToken* tok, ScanEnv* env)
|
|
{
|
|
int low, up, syn_allow, non_low = 0;
|
|
int r = 0;
|
|
OnigCodePoint c;
|
|
OnigEncoding enc = env->enc;
|
|
UChar* p = *src;
|
|
PFETCH_READY;
|
|
|
|
syn_allow = IS_SYNTAX_BV(env->syntax, ONIG_SYN_ALLOW_INVALID_INTERVAL);
|
|
|
|
if (PEND) {
|
|
if (syn_allow)
|
|
return 1; /* "....{" : OK! */
|
|
else
|
|
return ONIGERR_END_PATTERN_AT_LEFT_BRACE; /* "....{" syntax error */
|
|
}
|
|
|
|
if (! syn_allow) {
|
|
c = PPEEK;
|
|
if (c == ')' || c == '(' || c == '|') {
|
|
return ONIGERR_END_PATTERN_AT_LEFT_BRACE;
|
|
}
|
|
}
|
|
|
|
low = onig_scan_unsigned_number(&p, end, env->enc);
|
|
if (low < 0) return ONIGERR_TOO_BIG_NUMBER_FOR_REPEAT_RANGE;
|
|
if (low > ONIG_MAX_REPEAT_NUM)
|
|
return ONIGERR_TOO_BIG_NUMBER_FOR_REPEAT_RANGE;
|
|
|
|
if (p == *src) { /* can't read low */
|
|
if (IS_SYNTAX_BV(env->syntax, ONIG_SYN_ALLOW_INTERVAL_LOW_ABBREV)) {
|
|
/* allow {,n} as {0,n} */
|
|
low = 0;
|
|
non_low = 1;
|
|
}
|
|
else
|
|
goto invalid;
|
|
}
|
|
|
|
if (PEND) goto invalid;
|
|
PFETCH(c);
|
|
if (c == ',') {
|
|
UChar* prev = p;
|
|
up = onig_scan_unsigned_number(&p, end, env->enc);
|
|
if (up < 0) return ONIGERR_TOO_BIG_NUMBER_FOR_REPEAT_RANGE;
|
|
if (up > ONIG_MAX_REPEAT_NUM)
|
|
return ONIGERR_TOO_BIG_NUMBER_FOR_REPEAT_RANGE;
|
|
|
|
if (p == prev) {
|
|
if (non_low != 0)
|
|
goto invalid;
|
|
up = INFINITE_REPEAT; /* {n,} : {n,infinite} */
|
|
}
|
|
}
|
|
else {
|
|
if (non_low != 0)
|
|
goto invalid;
|
|
|
|
PUNFETCH;
|
|
up = low; /* {n} : exact n times */
|
|
r = 2; /* fixed */
|
|
}
|
|
|
|
if (PEND) goto invalid;
|
|
PFETCH(c);
|
|
if (IS_SYNTAX_OP(env->syntax, ONIG_SYN_OP_ESC_BRACE_INTERVAL)) {
|
|
if (c != MC_ESC(env->syntax)) goto invalid;
|
|
PFETCH(c);
|
|
}
|
|
if (c != '}') goto invalid;
|
|
|
|
if (!IS_INFINITE_REPEAT(up) && low > up) {
|
|
/* {n,m}+ supported case */
|
|
if (IS_SYNTAX_OP2(env->syntax, ONIG_SYN_OP2_PLUS_POSSESSIVE_INTERVAL))
|
|
return ONIGERR_UPPER_SMALLER_THAN_LOWER_IN_REPEAT_RANGE;
|
|
|
|
tok->u.repeat.possessive = 1;
|
|
{
|
|
int tmp;
|
|
tmp = low; low = up; up = tmp;
|
|
}
|
|
}
|
|
else
|
|
tok->u.repeat.possessive = 0;
|
|
|
|
tok->type = TK_INTERVAL;
|
|
tok->u.repeat.lower = low;
|
|
tok->u.repeat.upper = up;
|
|
*src = p;
|
|
return r; /* 0: normal {n,m}, 2: fixed {n} */
|
|
|
|
invalid:
|
|
if (syn_allow) {
|
|
/* *src = p; */ /* !!! Don't do this line !!! */
|
|
return 1; /* OK */
|
|
}
|
|
else
|
|
return ONIGERR_INVALID_REPEAT_RANGE_PATTERN;
|
|
}
|
|
|
|
/* \M-, \C-, \c, or \... */
|
|
static int
|
|
fetch_escaped_value(UChar** src, UChar* end, ScanEnv* env, OnigCodePoint* val)
|
|
{
|
|
int v;
|
|
OnigCodePoint c;
|
|
OnigEncoding enc = env->enc;
|
|
UChar* p = *src;
|
|
|
|
if (PEND) return ONIGERR_END_PATTERN_AT_ESCAPE;
|
|
|
|
PFETCH_S(c);
|
|
switch (c) {
|
|
case 'M':
|
|
if (IS_SYNTAX_OP2(env->syntax, ONIG_SYN_OP2_ESC_CAPITAL_M_BAR_META)) {
|
|
if (PEND) return ONIGERR_END_PATTERN_AT_META;
|
|
PFETCH_S(c);
|
|
if (c != '-') return ONIGERR_META_CODE_SYNTAX;
|
|
if (PEND) return ONIGERR_END_PATTERN_AT_META;
|
|
PFETCH_S(c);
|
|
if (c == MC_ESC(env->syntax)) {
|
|
v = fetch_escaped_value(&p, end, env, &c);
|
|
if (v < 0) return v;
|
|
}
|
|
c = ((c & 0xff) | 0x80);
|
|
}
|
|
else
|
|
goto backslash;
|
|
break;
|
|
|
|
case 'C':
|
|
if (IS_SYNTAX_OP2(env->syntax, ONIG_SYN_OP2_ESC_CAPITAL_C_BAR_CONTROL)) {
|
|
if (PEND) return ONIGERR_END_PATTERN_AT_CONTROL;
|
|
PFETCH_S(c);
|
|
if (c != '-') return ONIGERR_CONTROL_CODE_SYNTAX;
|
|
goto control;
|
|
}
|
|
else
|
|
goto backslash;
|
|
|
|
case 'c':
|
|
if (IS_SYNTAX_OP(env->syntax, ONIG_SYN_OP_ESC_C_CONTROL)) {
|
|
control:
|
|
if (PEND) return ONIGERR_END_PATTERN_AT_CONTROL;
|
|
PFETCH_S(c);
|
|
if (c == '?') {
|
|
c = 0177;
|
|
}
|
|
else {
|
|
if (c == MC_ESC(env->syntax)) {
|
|
v = fetch_escaped_value(&p, end, env, &c);
|
|
if (v < 0) return v;
|
|
}
|
|
c &= 0x9f;
|
|
}
|
|
break;
|
|
}
|
|
/* fall through */
|
|
|
|
default:
|
|
{
|
|
backslash:
|
|
c = conv_backslash_value(c, env);
|
|
}
|
|
break;
|
|
}
|
|
|
|
*src = p;
|
|
*val = c;
|
|
return 0;
|
|
}
|
|
|
|
static int fetch_token(PToken* tok, UChar** src, UChar* end, ScanEnv* env);
|
|
|
|
static OnigCodePoint
|
|
get_name_end_code_point(OnigCodePoint start)
|
|
{
|
|
switch (start) {
|
|
case '<': return (OnigCodePoint )'>'; break;
|
|
case '\'': return (OnigCodePoint )'\''; break;
|
|
case '(': return (OnigCodePoint )')'; break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
return (OnigCodePoint )0;
|
|
}
|
|
|
|
enum REF_NUM {
|
|
IS_NOT_NUM = 0,
|
|
IS_ABS_NUM = 1,
|
|
IS_REL_NUM = 2
|
|
};
|
|
|
|
#ifdef USE_BACKREF_WITH_LEVEL
|
|
/*
|
|
\k<name+n>, \k<name-n>
|
|
\k<num+n>, \k<num-n>
|
|
\k<-num+n>, \k<-num-n>
|
|
\k<+num+n>, \k<+num-n>
|
|
*/
|
|
static int
|
|
fetch_name_with_level(OnigCodePoint start_code, UChar** src, UChar* end,
|
|
UChar** rname_end, ScanEnv* env,
|
|
int* rback_num, int* rlevel, enum REF_NUM* num_type)
|
|
{
|
|
int r, sign, exist_level;
|
|
int digit_count;
|
|
OnigCodePoint end_code;
|
|
OnigCodePoint c = 0;
|
|
OnigEncoding enc = env->enc;
|
|
UChar *name_end;
|
|
UChar *pnum_head;
|
|
UChar *p = *src;
|
|
PFETCH_READY;
|
|
|
|
*rback_num = 0;
|
|
exist_level = 0;
|
|
*num_type = IS_NOT_NUM;
|
|
sign = 1;
|
|
pnum_head = *src;
|
|
|
|
end_code = get_name_end_code_point(start_code);
|
|
|
|
digit_count = 0;
|
|
name_end = end;
|
|
r = 0;
|
|
if (PEND) {
|
|
return ONIGERR_EMPTY_GROUP_NAME;
|
|
}
|
|
else {
|
|
PFETCH(c);
|
|
if (c == end_code)
|
|
return ONIGERR_EMPTY_GROUP_NAME;
|
|
|
|
if (IS_CODE_DIGIT_ASCII(enc, c)) {
|
|
*num_type = IS_ABS_NUM;
|
|
digit_count++;
|
|
}
|
|
else if (c == '-') {
|
|
*num_type = IS_REL_NUM;
|
|
sign = -1;
|
|
pnum_head = p;
|
|
}
|
|
else if (c == '+') {
|
|
*num_type = IS_REL_NUM;
|
|
sign = 1;
|
|
pnum_head = p;
|
|
}
|
|
else if (!ONIGENC_IS_CODE_WORD(enc, c)) {
|
|
r = ONIGERR_INVALID_CHAR_IN_GROUP_NAME;
|
|
}
|
|
}
|
|
|
|
while (!PEND) {
|
|
name_end = p;
|
|
PFETCH(c);
|
|
if (c == end_code || c == ')' || c == '+' || c == '-') {
|
|
if (*num_type != IS_NOT_NUM && digit_count == 0)
|
|
r = ONIGERR_INVALID_GROUP_NAME;
|
|
break;
|
|
}
|
|
|
|
if (*num_type != IS_NOT_NUM) {
|
|
if (IS_CODE_DIGIT_ASCII(enc, c)) {
|
|
digit_count++;
|
|
}
|
|
else {
|
|
r = ONIGERR_INVALID_GROUP_NAME;
|
|
*num_type = IS_NOT_NUM;
|
|
}
|
|
}
|
|
else if (!ONIGENC_IS_CODE_WORD(enc, c)) {
|
|
r = ONIGERR_INVALID_CHAR_IN_GROUP_NAME;
|
|
}
|
|
}
|
|
|
|
if (r == 0 && c != end_code) {
|
|
if (c == '+' || c == '-') {
|
|
int level;
|
|
int flag = (c == '-' ? -1 : 1);
|
|
|
|
if (PEND) {
|
|
r = ONIGERR_INVALID_CHAR_IN_GROUP_NAME;
|
|
goto end;
|
|
}
|
|
PFETCH(c);
|
|
if (! IS_CODE_DIGIT_ASCII(enc, c)) goto err;
|
|
PUNFETCH;
|
|
level = onig_scan_unsigned_number(&p, end, enc);
|
|
if (level < 0) return ONIGERR_TOO_BIG_NUMBER;
|
|
*rlevel = (level * flag);
|
|
exist_level = 1;
|
|
|
|
if (!PEND) {
|
|
PFETCH(c);
|
|
if (c == end_code)
|
|
goto end;
|
|
}
|
|
}
|
|
|
|
err:
|
|
name_end = end;
|
|
err2:
|
|
r = ONIGERR_INVALID_GROUP_NAME;
|
|
}
|
|
|
|
end:
|
|
if (r == 0) {
|
|
if (*num_type != IS_NOT_NUM) {
|
|
*rback_num = onig_scan_unsigned_number(&pnum_head, name_end, enc);
|
|
if (*rback_num < 0) return ONIGERR_TOO_BIG_NUMBER;
|
|
else if (*rback_num == 0) {
|
|
if (*num_type == IS_REL_NUM)
|
|
goto err2;
|
|
}
|
|
|
|
*rback_num *= sign;
|
|
}
|
|
|
|
*rname_end = name_end;
|
|
*src = p;
|
|
return (exist_level ? 1 : 0);
|
|
}
|
|
else {
|
|
onig_scan_env_set_error_string(env, r, *src, name_end);
|
|
return r;
|
|
}
|
|
}
|
|
#endif /* USE_BACKREF_WITH_LEVEL */
|
|
|
|
/*
|
|
ref: 0 -> define name (don't allow number name)
|
|
1 -> reference name (allow number name)
|
|
*/
|
|
static int
|
|
fetch_name(OnigCodePoint start_code, UChar** src, UChar* end,
|
|
UChar** rname_end, ScanEnv* env, int* rback_num,
|
|
enum REF_NUM* num_type, int ref)
|
|
{
|
|
int r, sign;
|
|
int digit_count;
|
|
OnigCodePoint end_code;
|
|
OnigCodePoint c = 0;
|
|
OnigEncoding enc = env->enc;
|
|
UChar *name_end;
|
|
UChar *pnum_head;
|
|
UChar *p = *src;
|
|
|
|
*rback_num = 0;
|
|
|
|
end_code = get_name_end_code_point(start_code);
|
|
|
|
digit_count = 0;
|
|
name_end = end;
|
|
pnum_head = *src;
|
|
r = 0;
|
|
*num_type = IS_NOT_NUM;
|
|
sign = 1;
|
|
if (PEND) {
|
|
return ONIGERR_EMPTY_GROUP_NAME;
|
|
}
|
|
else {
|
|
PFETCH_S(c);
|
|
if (c == end_code)
|
|
return ONIGERR_EMPTY_GROUP_NAME;
|
|
|
|
if (IS_CODE_DIGIT_ASCII(enc, c)) {
|
|
if (ref == 1)
|
|
*num_type = IS_ABS_NUM;
|
|
else {
|
|
r = ONIGERR_INVALID_GROUP_NAME;
|
|
}
|
|
digit_count++;
|
|
}
|
|
else if (c == '-') {
|
|
if (ref == 1) {
|
|
*num_type = IS_REL_NUM;
|
|
sign = -1;
|
|
pnum_head = p;
|
|
}
|
|
else {
|
|
r = ONIGERR_INVALID_GROUP_NAME;
|
|
}
|
|
}
|
|
else if (c == '+') {
|
|
if (ref == 1) {
|
|
*num_type = IS_REL_NUM;
|
|
sign = 1;
|
|
pnum_head = p;
|
|
}
|
|
else {
|
|
r = ONIGERR_INVALID_GROUP_NAME;
|
|
}
|
|
}
|
|
else if (!ONIGENC_IS_CODE_WORD(enc, c)) {
|
|
r = ONIGERR_INVALID_CHAR_IN_GROUP_NAME;
|
|
}
|
|
}
|
|
|
|
if (r == 0) {
|
|
while (!PEND) {
|
|
name_end = p;
|
|
PFETCH_S(c);
|
|
if (c == end_code || c == ')') {
|
|
if (*num_type != IS_NOT_NUM && digit_count == 0)
|
|
r = ONIGERR_INVALID_GROUP_NAME;
|
|
break;
|
|
}
|
|
|
|
if (*num_type != IS_NOT_NUM) {
|
|
if (IS_CODE_DIGIT_ASCII(enc, c)) {
|
|
digit_count++;
|
|
}
|
|
else {
|
|
if (!ONIGENC_IS_CODE_WORD(enc, c))
|
|
r = ONIGERR_INVALID_CHAR_IN_GROUP_NAME;
|
|
else
|
|
r = ONIGERR_INVALID_GROUP_NAME;
|
|
|
|
*num_type = IS_NOT_NUM;
|
|
}
|
|
}
|
|
else {
|
|
if (!ONIGENC_IS_CODE_WORD(enc, c)) {
|
|
r = ONIGERR_INVALID_CHAR_IN_GROUP_NAME;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (c != end_code) {
|
|
r = ONIGERR_INVALID_GROUP_NAME;
|
|
goto err;
|
|
}
|
|
|
|
if (*num_type != IS_NOT_NUM) {
|
|
*rback_num = onig_scan_unsigned_number(&pnum_head, name_end, enc);
|
|
if (*rback_num < 0) return ONIGERR_TOO_BIG_NUMBER;
|
|
else if (*rback_num == 0) {
|
|
if (*num_type == IS_REL_NUM) {
|
|
r = ONIGERR_INVALID_GROUP_NAME;
|
|
goto err;
|
|
}
|
|
}
|
|
|
|
*rback_num *= sign;
|
|
}
|
|
|
|
*rname_end = name_end;
|
|
*src = p;
|
|
return 0;
|
|
}
|
|
else {
|
|
while (!PEND) {
|
|
name_end = p;
|
|
PFETCH_S(c);
|
|
if (c == end_code || c == ')')
|
|
break;
|
|
}
|
|
if (PEND)
|
|
name_end = end;
|
|
|
|
err:
|
|
onig_scan_env_set_error_string(env, r, *src, name_end);
|
|
return r;
|
|
}
|
|
}
|
|
|
|
static void
|
|
CC_ESC_WARN(ScanEnv* env, UChar *c)
|
|
{
|
|
if (onig_warn == onig_null_warn) return ;
|
|
|
|
if (IS_SYNTAX_BV(env->syntax, ONIG_SYN_WARN_CC_OP_NOT_ESCAPED) &&
|
|
IS_SYNTAX_BV(env->syntax, ONIG_SYN_BACKSLASH_ESCAPE_IN_CC)) {
|
|
UChar buf[WARN_BUFSIZE];
|
|
onig_snprintf_with_pattern(buf, WARN_BUFSIZE, env->enc,
|
|
env->pattern, env->pattern_end,
|
|
(UChar* )"character class has '%s' without escape",
|
|
c);
|
|
(*onig_warn)((char* )buf);
|
|
}
|
|
}
|
|
|
|
static void
|
|
CLOSE_BRACKET_WITHOUT_ESC_WARN(ScanEnv* env, UChar* c)
|
|
{
|
|
if (onig_warn == onig_null_warn) return ;
|
|
|
|
if (IS_SYNTAX_BV((env)->syntax, ONIG_SYN_WARN_CC_OP_NOT_ESCAPED)) {
|
|
UChar buf[WARN_BUFSIZE];
|
|
onig_snprintf_with_pattern(buf, WARN_BUFSIZE, (env)->enc,
|
|
(env)->pattern, (env)->pattern_end,
|
|
(UChar* )"regular expression has '%s' without escape", c);
|
|
(*onig_warn)((char* )buf);
|
|
}
|
|
}
|
|
|
|
static UChar*
|
|
find_str_position(OnigCodePoint s[], int n, UChar* from, UChar* to,
|
|
UChar **next, OnigEncoding enc)
|
|
{
|
|
int i;
|
|
OnigCodePoint x;
|
|
UChar *q;
|
|
UChar *p = from;
|
|
|
|
while (p < to) {
|
|
x = ONIGENC_MBC_TO_CODE(enc, p, to);
|
|
q = p + enclen(enc, p);
|
|
if (x == s[0]) {
|
|
for (i = 1; i < n && q < to; i++) {
|
|
x = ONIGENC_MBC_TO_CODE(enc, q, to);
|
|
if (x != s[i]) break;
|
|
q += enclen(enc, q);
|
|
}
|
|
if (i >= n) {
|
|
if (IS_NOT_NULL(next))
|
|
*next = q;
|
|
return p;
|
|
}
|
|
}
|
|
p = q;
|
|
}
|
|
return NULL_UCHARP;
|
|
}
|
|
|
|
static int
|
|
str_exist_check_with_esc(OnigCodePoint s[], int n, UChar* from, UChar* to,
|
|
OnigCodePoint bad, OnigEncoding enc, OnigSyntaxType* syn)
|
|
{
|
|
int i, in_esc;
|
|
OnigCodePoint x;
|
|
UChar *q;
|
|
UChar *p = from;
|
|
|
|
in_esc = 0;
|
|
while (p < to) {
|
|
if (in_esc) {
|
|
in_esc = 0;
|
|
p += enclen(enc, p);
|
|
}
|
|
else {
|
|
x = ONIGENC_MBC_TO_CODE(enc, p, to);
|
|
q = p + enclen(enc, p);
|
|
if (x == s[0]) {
|
|
for (i = 1; i < n && q < to; i++) {
|
|
x = ONIGENC_MBC_TO_CODE(enc, q, to);
|
|
if (x != s[i]) break;
|
|
q += enclen(enc, q);
|
|
}
|
|
if (i >= n) return 1;
|
|
p += enclen(enc, p);
|
|
}
|
|
else {
|
|
x = ONIGENC_MBC_TO_CODE(enc, p, to);
|
|
if (x == bad) return 0;
|
|
else if (x == MC_ESC(syn)) in_esc = 1;
|
|
p = q;
|
|
}
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
fetch_token_in_cc(PToken* tok, UChar** src, UChar* end, ScanEnv* env)
|
|
{
|
|
int num;
|
|
OnigCodePoint c, c2;
|
|
OnigSyntaxType* syn = env->syntax;
|
|
OnigEncoding enc = env->enc;
|
|
UChar* prev;
|
|
UChar* p = *src;
|
|
PFETCH_READY;
|
|
|
|
if (PEND) {
|
|
tok->type = TK_EOT;
|
|
return tok->type;
|
|
}
|
|
|
|
PFETCH(c);
|
|
tok->type = TK_CHAR;
|
|
tok->base = 0;
|
|
tok->u.c = c;
|
|
tok->escaped = 0;
|
|
|
|
if (c == ']') {
|
|
tok->type = TK_CC_CLOSE;
|
|
}
|
|
else if (c == '-') {
|
|
tok->type = TK_CC_RANGE;
|
|
}
|
|
else if (c == MC_ESC(syn)) {
|
|
if (! IS_SYNTAX_BV(syn, ONIG_SYN_BACKSLASH_ESCAPE_IN_CC))
|
|
goto end;
|
|
|
|
if (PEND) return ONIGERR_END_PATTERN_AT_ESCAPE;
|
|
|
|
PFETCH(c);
|
|
tok->escaped = 1;
|
|
tok->u.c = c;
|
|
switch (c) {
|
|
case 'w':
|
|
tok->type = TK_CHAR_TYPE;
|
|
tok->u.prop.ctype = ONIGENC_CTYPE_WORD;
|
|
tok->u.prop.not = 0;
|
|
break;
|
|
case 'W':
|
|
tok->type = TK_CHAR_TYPE;
|
|
tok->u.prop.ctype = ONIGENC_CTYPE_WORD;
|
|
tok->u.prop.not = 1;
|
|
break;
|
|
case 'd':
|
|
tok->type = TK_CHAR_TYPE;
|
|
tok->u.prop.ctype = ONIGENC_CTYPE_DIGIT;
|
|
tok->u.prop.not = 0;
|
|
break;
|
|
case 'D':
|
|
tok->type = TK_CHAR_TYPE;
|
|
tok->u.prop.ctype = ONIGENC_CTYPE_DIGIT;
|
|
tok->u.prop.not = 1;
|
|
break;
|
|
case 's':
|
|
tok->type = TK_CHAR_TYPE;
|
|
tok->u.prop.ctype = ONIGENC_CTYPE_SPACE;
|
|
tok->u.prop.not = 0;
|
|
break;
|
|
case 'S':
|
|
tok->type = TK_CHAR_TYPE;
|
|
tok->u.prop.ctype = ONIGENC_CTYPE_SPACE;
|
|
tok->u.prop.not = 1;
|
|
break;
|
|
case 'h':
|
|
if (! IS_SYNTAX_OP2(syn, ONIG_SYN_OP2_ESC_H_XDIGIT)) break;
|
|
tok->type = TK_CHAR_TYPE;
|
|
tok->u.prop.ctype = ONIGENC_CTYPE_XDIGIT;
|
|
tok->u.prop.not = 0;
|
|
break;
|
|
case 'H':
|
|
if (! IS_SYNTAX_OP2(syn, ONIG_SYN_OP2_ESC_H_XDIGIT)) break;
|
|
tok->type = TK_CHAR_TYPE;
|
|
tok->u.prop.ctype = ONIGENC_CTYPE_XDIGIT;
|
|
tok->u.prop.not = 1;
|
|
break;
|
|
|
|
case 'p':
|
|
case 'P':
|
|
if (PEND) break;
|
|
|
|
c2 = PPEEK;
|
|
if (c2 == '{' &&
|
|
IS_SYNTAX_OP2(syn, ONIG_SYN_OP2_ESC_P_BRACE_CHAR_PROPERTY)) {
|
|
PINC;
|
|
tok->type = TK_CHAR_PROPERTY;
|
|
tok->u.prop.not = c == 'P';
|
|
|
|
if (!PEND && IS_SYNTAX_OP2(syn, ONIG_SYN_OP2_ESC_P_BRACE_CIRCUMFLEX_NOT)) {
|
|
PFETCH(c2);
|
|
if (c2 == '^') {
|
|
tok->u.prop.not = tok->u.prop.not == 0;
|
|
}
|
|
else
|
|
PUNFETCH;
|
|
}
|
|
}
|
|
break;
|
|
|
|
case 'o':
|
|
if (PEND) break;
|
|
|
|
prev = p;
|
|
if (PPEEK_IS('{') && IS_SYNTAX_OP(syn, ONIG_SYN_OP_ESC_O_BRACE_OCTAL)) {
|
|
PINC;
|
|
num = scan_unsigned_octal_number(&p, end, 11, enc);
|
|
if (num < 0) return ONIGERR_TOO_BIG_WIDE_CHAR_VALUE;
|
|
if (!PEND) {
|
|
c2 = PPEEK;
|
|
if (IS_CODE_DIGIT_ASCII(enc, c2))
|
|
return ONIGERR_TOO_LONG_WIDE_CHAR_VALUE;
|
|
}
|
|
|
|
if (p > prev + enclen(enc, prev) && !PEND && (PPEEK_IS('}'))) {
|
|
PINC;
|
|
tok->type = TK_CODE_POINT;
|
|
tok->base = 8;
|
|
tok->u.code = (OnigCodePoint )num;
|
|
}
|
|
else {
|
|
/* can't read nothing or invalid format */
|
|
p = prev;
|
|
}
|
|
}
|
|
break;
|
|
|
|
case 'x':
|
|
if (PEND) break;
|
|
|
|
prev = p;
|
|
if (PPEEK_IS('{') && IS_SYNTAX_OP(syn, ONIG_SYN_OP_ESC_X_BRACE_HEX8)) {
|
|
PINC;
|
|
num = scan_unsigned_hexadecimal_number(&p, end, 0, 8, enc);
|
|
if (num < 0) {
|
|
if (num == ONIGERR_TOO_BIG_NUMBER)
|
|
return ONIGERR_TOO_BIG_WIDE_CHAR_VALUE;
|
|
else
|
|
return num;
|
|
}
|
|
if (!PEND) {
|
|
c2 = PPEEK;
|
|
if (IS_CODE_XDIGIT_ASCII(enc, c2))
|
|
return ONIGERR_TOO_LONG_WIDE_CHAR_VALUE;
|
|
}
|
|
|
|
if (p > prev + enclen(enc, prev) && !PEND && (PPEEK_IS('}'))) {
|
|
PINC;
|
|
tok->type = TK_CODE_POINT;
|
|
tok->base = 16;
|
|
tok->u.code = (OnigCodePoint )num;
|
|
}
|
|
else {
|
|
/* can't read nothing or invalid format */
|
|
p = prev;
|
|
}
|
|
}
|
|
else if (IS_SYNTAX_OP(syn, ONIG_SYN_OP_ESC_X_HEX2)) {
|
|
num = scan_unsigned_hexadecimal_number(&p, end, 0, 2, enc);
|
|
if (num < 0) return num;
|
|
if (p == prev) { /* can't read nothing. */
|
|
num = 0; /* but, it's not error */
|
|
}
|
|
tok->type = TK_RAW_BYTE;
|
|
tok->base = 16;
|
|
tok->u.c = num;
|
|
}
|
|
break;
|
|
|
|
case 'u':
|
|
if (PEND) break;
|
|
|
|
prev = p;
|
|
if (IS_SYNTAX_OP2(syn, ONIG_SYN_OP2_ESC_U_HEX4)) {
|
|
num = scan_unsigned_hexadecimal_number(&p, end, 4, 4, enc);
|
|
if (num < 0) return num;
|
|
if (p == prev) { /* can't read nothing. */
|
|
num = 0; /* but, it's not error */
|
|
}
|
|
tok->type = TK_CODE_POINT;
|
|
tok->base = 16;
|
|
tok->u.code = (OnigCodePoint )num;
|
|
}
|
|
break;
|
|
|
|
case '0':
|
|
case '1': case '2': case '3': case '4': case '5': case '6': case '7':
|
|
if (IS_SYNTAX_OP(syn, ONIG_SYN_OP_ESC_OCTAL3)) {
|
|
PUNFETCH;
|
|
prev = p;
|
|
num = scan_unsigned_octal_number(&p, end, 3, enc);
|
|
if (num < 0 || num >= 256) return ONIGERR_TOO_BIG_NUMBER;
|
|
if (p == prev) { /* can't read nothing. */
|
|
num = 0; /* but, it's not error */
|
|
}
|
|
tok->type = TK_RAW_BYTE;
|
|
tok->base = 8;
|
|
tok->u.c = num;
|
|
}
|
|
break;
|
|
|
|
default:
|
|
PUNFETCH;
|
|
num = fetch_escaped_value(&p, end, env, &c2);
|
|
if (num < 0) return num;
|
|
if (tok->u.c != c2) {
|
|
tok->u.code = c2;
|
|
tok->type = TK_CODE_POINT;
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
else if (c == '[') {
|
|
if (IS_SYNTAX_OP(syn, ONIG_SYN_OP_POSIX_BRACKET) && (PPEEK_IS(':'))) {
|
|
OnigCodePoint send[] = { (OnigCodePoint )':', (OnigCodePoint )']' };
|
|
tok->backp = p; /* point at '[' is read */
|
|
PINC;
|
|
if (str_exist_check_with_esc(send, 2, p, end,
|
|
(OnigCodePoint )']', enc, syn)) {
|
|
tok->type = TK_POSIX_BRACKET_OPEN;
|
|
}
|
|
else {
|
|
PUNFETCH;
|
|
goto cc_in_cc;
|
|
}
|
|
}
|
|
else {
|
|
cc_in_cc:
|
|
if (IS_SYNTAX_OP2(syn, ONIG_SYN_OP2_CCLASS_SET_OP)) {
|
|
tok->type = TK_CC_CC_OPEN;
|
|
}
|
|
else {
|
|
CC_ESC_WARN(env, (UChar* )"[");
|
|
}
|
|
}
|
|
}
|
|
else if (c == '&') {
|
|
if (IS_SYNTAX_OP2(syn, ONIG_SYN_OP2_CCLASS_SET_OP) &&
|
|
!PEND && (PPEEK_IS('&'))) {
|
|
PINC;
|
|
tok->type = TK_CC_AND;
|
|
}
|
|
}
|
|
|
|
end:
|
|
*src = p;
|
|
return tok->type;
|
|
}
|
|
|
|
static int
|
|
fetch_token(PToken* tok, UChar** src, UChar* end, ScanEnv* env)
|
|
{
|
|
int r, num;
|
|
OnigCodePoint c;
|
|
OnigEncoding enc = env->enc;
|
|
OnigSyntaxType* syn = env->syntax;
|
|
UChar* prev;
|
|
UChar* p = *src;
|
|
PFETCH_READY;
|
|
|
|
start:
|
|
if (PEND) {
|
|
tok->type = TK_EOT;
|
|
return tok->type;
|
|
}
|
|
|
|
tok->type = TK_STRING;
|
|
tok->base = 0;
|
|
tok->backp = p;
|
|
|
|
PFETCH(c);
|
|
if (IS_MC_ESC_CODE(c, syn)) {
|
|
if (PEND) return ONIGERR_END_PATTERN_AT_ESCAPE;
|
|
|
|
tok->backp = p;
|
|
PFETCH(c);
|
|
|
|
tok->u.c = c;
|
|
tok->escaped = 1;
|
|
switch (c) {
|
|
case '*':
|
|
if (! IS_SYNTAX_OP(syn, ONIG_SYN_OP_ESC_ASTERISK_ZERO_INF)) break;
|
|
tok->type = TK_REPEAT;
|
|
tok->u.repeat.lower = 0;
|
|
tok->u.repeat.upper = INFINITE_REPEAT;
|
|
goto greedy_check;
|
|
break;
|
|
|
|
case '+':
|
|
if (! IS_SYNTAX_OP(syn, ONIG_SYN_OP_ESC_PLUS_ONE_INF)) break;
|
|
tok->type = TK_REPEAT;
|
|
tok->u.repeat.lower = 1;
|
|
tok->u.repeat.upper = INFINITE_REPEAT;
|
|
goto greedy_check;
|
|
break;
|
|
|
|
case '?':
|
|
if (! IS_SYNTAX_OP(syn, ONIG_SYN_OP_ESC_QMARK_ZERO_ONE)) break;
|
|
tok->type = TK_REPEAT;
|
|
tok->u.repeat.lower = 0;
|
|
tok->u.repeat.upper = 1;
|
|
greedy_check:
|
|
tok->u.repeat.possessive = 0;
|
|
greedy_check2:
|
|
if (!PEND && PPEEK_IS('?') &&
|
|
IS_SYNTAX_OP(syn, ONIG_SYN_OP_QMARK_NON_GREEDY) &&
|
|
tok->u.repeat.possessive == 0) {
|
|
PFETCH(c);
|
|
tok->u.repeat.greedy = 0;
|
|
tok->u.repeat.possessive = 0;
|
|
}
|
|
else {
|
|
possessive_check:
|
|
tok->u.repeat.greedy = 1;
|
|
if (!PEND && PPEEK_IS('+') &&
|
|
((IS_SYNTAX_OP2(syn, ONIG_SYN_OP2_PLUS_POSSESSIVE_REPEAT) &&
|
|
tok->type != TK_INTERVAL) ||
|
|
(IS_SYNTAX_OP2(syn, ONIG_SYN_OP2_PLUS_POSSESSIVE_INTERVAL) &&
|
|
tok->type == TK_INTERVAL)) &&
|
|
tok->u.repeat.possessive == 0) {
|
|
PFETCH(c);
|
|
tok->u.repeat.possessive = 1;
|
|
}
|
|
}
|
|
break;
|
|
|
|
case '{':
|
|
if (! IS_SYNTAX_OP(syn, ONIG_SYN_OP_ESC_BRACE_INTERVAL)) break;
|
|
r = fetch_interval_quantifier(&p, end, tok, env);
|
|
if (r < 0) return r; /* error */
|
|
if (r == 0) goto greedy_check2;
|
|
else if (r == 2) { /* {n} */
|
|
if (IS_SYNTAX_BV(syn, ONIG_SYN_FIXED_INTERVAL_IS_GREEDY_ONLY))
|
|
goto possessive_check;
|
|
|
|
goto greedy_check2;
|
|
}
|
|
/* r == 1 : normal char */
|
|
break;
|
|
|
|
case '|':
|
|
if (! IS_SYNTAX_OP(syn, ONIG_SYN_OP_ESC_VBAR_ALT)) break;
|
|
tok->type = TK_ALT;
|
|
break;
|
|
|
|
case '(':
|
|
if (! IS_SYNTAX_OP(syn, ONIG_SYN_OP_ESC_LPAREN_SUBEXP)) break;
|
|
tok->type = TK_SUBEXP_OPEN;
|
|
break;
|
|
|
|
case ')':
|
|
if (! IS_SYNTAX_OP(syn, ONIG_SYN_OP_ESC_LPAREN_SUBEXP)) break;
|
|
tok->type = TK_SUBEXP_CLOSE;
|
|
break;
|
|
|
|
case 'w':
|
|
if (! IS_SYNTAX_OP(syn, ONIG_SYN_OP_ESC_W_WORD)) break;
|
|
tok->type = TK_CHAR_TYPE;
|
|
tok->u.prop.ctype = ONIGENC_CTYPE_WORD;
|
|
tok->u.prop.not = 0;
|
|
break;
|
|
|
|
case 'W':
|
|
if (! IS_SYNTAX_OP(syn, ONIG_SYN_OP_ESC_W_WORD)) break;
|
|
tok->type = TK_CHAR_TYPE;
|
|
tok->u.prop.ctype = ONIGENC_CTYPE_WORD;
|
|
tok->u.prop.not = 1;
|
|
break;
|
|
|
|
case 'b':
|
|
if (! IS_SYNTAX_OP(syn, ONIG_SYN_OP_ESC_B_WORD_BOUND)) break;
|
|
tok->type = TK_ANCHOR;
|
|
tok->u.anchor = ANCR_WORD_BOUNDARY;
|
|
break;
|
|
|
|
case 'B':
|
|
if (! IS_SYNTAX_OP(syn, ONIG_SYN_OP_ESC_B_WORD_BOUND)) break;
|
|
tok->type = TK_ANCHOR;
|
|
tok->u.anchor = ANCR_NO_WORD_BOUNDARY;
|
|
break;
|
|
|
|
case 'y':
|
|
if (! IS_SYNTAX_OP(syn, ONIG_SYN_OP2_ESC_X_Y_TEXT_SEGMENT)) break;
|
|
tok->type = TK_ANCHOR;
|
|
tok->u.anchor = ANCR_TEXT_SEGMENT_BOUNDARY;
|
|
break;
|
|
|
|
case 'Y':
|
|
if (! IS_SYNTAX_OP(syn, ONIG_SYN_OP2_ESC_X_Y_TEXT_SEGMENT)) break;
|
|
tok->type = TK_ANCHOR;
|
|
tok->u.anchor = ANCR_NO_TEXT_SEGMENT_BOUNDARY;
|
|
break;
|
|
|
|
#ifdef USE_WORD_BEGIN_END
|
|
case '<':
|
|
if (! IS_SYNTAX_OP(syn, ONIG_SYN_OP_ESC_LTGT_WORD_BEGIN_END)) break;
|
|
tok->type = TK_ANCHOR;
|
|
tok->u.anchor = ANCR_WORD_BEGIN;
|
|
break;
|
|
|
|
case '>':
|
|
if (! IS_SYNTAX_OP(syn, ONIG_SYN_OP_ESC_LTGT_WORD_BEGIN_END)) break;
|
|
tok->type = TK_ANCHOR;
|
|
tok->u.anchor = ANCR_WORD_END;
|
|
break;
|
|
#endif
|
|
|
|
case 's':
|
|
if (! IS_SYNTAX_OP(syn, ONIG_SYN_OP_ESC_S_WHITE_SPACE)) break;
|
|
tok->type = TK_CHAR_TYPE;
|
|
tok->u.prop.ctype = ONIGENC_CTYPE_SPACE;
|
|
tok->u.prop.not = 0;
|
|
break;
|
|
|
|
case 'S':
|
|
if (! IS_SYNTAX_OP(syn, ONIG_SYN_OP_ESC_S_WHITE_SPACE)) break;
|
|
tok->type = TK_CHAR_TYPE;
|
|
tok->u.prop.ctype = ONIGENC_CTYPE_SPACE;
|
|
tok->u.prop.not = 1;
|
|
break;
|
|
|
|
case 'd':
|
|
if (! IS_SYNTAX_OP(syn, ONIG_SYN_OP_ESC_D_DIGIT)) break;
|
|
tok->type = TK_CHAR_TYPE;
|
|
tok->u.prop.ctype = ONIGENC_CTYPE_DIGIT;
|
|
tok->u.prop.not = 0;
|
|
break;
|
|
|
|
case 'D':
|
|
if (! IS_SYNTAX_OP(syn, ONIG_SYN_OP_ESC_D_DIGIT)) break;
|
|
tok->type = TK_CHAR_TYPE;
|
|
tok->u.prop.ctype = ONIGENC_CTYPE_DIGIT;
|
|
tok->u.prop.not = 1;
|
|
break;
|
|
|
|
case 'h':
|
|
if (! IS_SYNTAX_OP2(syn, ONIG_SYN_OP2_ESC_H_XDIGIT)) break;
|
|
tok->type = TK_CHAR_TYPE;
|
|
tok->u.prop.ctype = ONIGENC_CTYPE_XDIGIT;
|
|
tok->u.prop.not = 0;
|
|
break;
|
|
|
|
case 'H':
|
|
if (! IS_SYNTAX_OP2(syn, ONIG_SYN_OP2_ESC_H_XDIGIT)) break;
|
|
tok->type = TK_CHAR_TYPE;
|
|
tok->u.prop.ctype = ONIGENC_CTYPE_XDIGIT;
|
|
tok->u.prop.not = 1;
|
|
break;
|
|
|
|
case 'K':
|
|
if (! IS_SYNTAX_OP2(syn, ONIG_SYN_OP2_ESC_CAPITAL_K_KEEP)) break;
|
|
tok->type = TK_KEEP;
|
|
break;
|
|
|
|
case 'R':
|
|
if (! IS_SYNTAX_OP2(syn, ONIG_SYN_OP2_ESC_CAPITAL_R_GENERAL_NEWLINE)) break;
|
|
tok->type = TK_GENERAL_NEWLINE;
|
|
break;
|
|
|
|
case 'N':
|
|
if (! IS_SYNTAX_OP2(syn, ONIG_SYN_OP2_ESC_CAPITAL_N_O_SUPER_DOT)) break;
|
|
tok->type = TK_NO_NEWLINE;
|
|
break;
|
|
|
|
case 'O':
|
|
if (! IS_SYNTAX_OP2(syn, ONIG_SYN_OP2_ESC_CAPITAL_N_O_SUPER_DOT)) break;
|
|
tok->type = TK_TRUE_ANYCHAR;
|
|
break;
|
|
|
|
case 'X':
|
|
if (! IS_SYNTAX_OP2(syn, ONIG_SYN_OP2_ESC_X_Y_TEXT_SEGMENT)) break;
|
|
tok->type = TK_TEXT_SEGMENT;
|
|
break;
|
|
|
|
case 'A':
|
|
if (! IS_SYNTAX_OP(syn, ONIG_SYN_OP_ESC_AZ_BUF_ANCHOR)) break;
|
|
begin_buf:
|
|
tok->type = TK_ANCHOR;
|
|
tok->u.subtype = ANCR_BEGIN_BUF;
|
|
break;
|
|
|
|
case 'Z':
|
|
if (! IS_SYNTAX_OP(syn, ONIG_SYN_OP_ESC_AZ_BUF_ANCHOR)) break;
|
|
tok->type = TK_ANCHOR;
|
|
tok->u.subtype = ANCR_SEMI_END_BUF;
|
|
break;
|
|
|
|
case 'z':
|
|
if (! IS_SYNTAX_OP(syn, ONIG_SYN_OP_ESC_AZ_BUF_ANCHOR)) break;
|
|
end_buf:
|
|
tok->type = TK_ANCHOR;
|
|
tok->u.subtype = ANCR_END_BUF;
|
|
break;
|
|
|
|
case 'G':
|
|
if (! IS_SYNTAX_OP(syn, ONIG_SYN_OP_ESC_CAPITAL_G_BEGIN_ANCHOR)) break;
|
|
tok->type = TK_ANCHOR;
|
|
tok->u.subtype = ANCR_BEGIN_POSITION;
|
|
break;
|
|
|
|
case '`':
|
|
if (! IS_SYNTAX_OP2(syn, ONIG_SYN_OP2_ESC_GNU_BUF_ANCHOR)) break;
|
|
goto begin_buf;
|
|
break;
|
|
|
|
case '\'':
|
|
if (! IS_SYNTAX_OP2(syn, ONIG_SYN_OP2_ESC_GNU_BUF_ANCHOR)) break;
|
|
goto end_buf;
|
|
break;
|
|
|
|
case 'o':
|
|
if (PEND) break;
|
|
|
|
prev = p;
|
|
if (PPEEK_IS('{') && IS_SYNTAX_OP(syn, ONIG_SYN_OP_ESC_O_BRACE_OCTAL)) {
|
|
PINC;
|
|
num = scan_unsigned_octal_number(&p, end, 11, enc);
|
|
if (num < 0) return ONIGERR_TOO_BIG_WIDE_CHAR_VALUE;
|
|
if (!PEND) {
|
|
if (IS_CODE_DIGIT_ASCII(enc, PPEEK))
|
|
return ONIGERR_TOO_LONG_WIDE_CHAR_VALUE;
|
|
}
|
|
|
|
if ((p > prev + enclen(enc, prev)) && !PEND && PPEEK_IS('}')) {
|
|
PINC;
|
|
tok->type = TK_CODE_POINT;
|
|
tok->u.code = (OnigCodePoint )num;
|
|
}
|
|
else {
|
|
/* can't read nothing or invalid format */
|
|
p = prev;
|
|
}
|
|
}
|
|
break;
|
|
|
|
case 'x':
|
|
if (PEND) break;
|
|
|
|
prev = p;
|
|
if (PPEEK_IS('{') && IS_SYNTAX_OP(syn, ONIG_SYN_OP_ESC_X_BRACE_HEX8)) {
|
|
PINC;
|
|
num = scan_unsigned_hexadecimal_number(&p, end, 0, 8, enc);
|
|
if (num < 0) {
|
|
if (num == ONIGERR_TOO_BIG_NUMBER)
|
|
return ONIGERR_TOO_BIG_WIDE_CHAR_VALUE;
|
|
else
|
|
return num;
|
|
}
|
|
if (!PEND) {
|
|
if (IS_CODE_XDIGIT_ASCII(enc, PPEEK))
|
|
return ONIGERR_TOO_LONG_WIDE_CHAR_VALUE;
|
|
}
|
|
|
|
if ((p > prev + enclen(enc, prev)) && !PEND && PPEEK_IS('}')) {
|
|
PINC;
|
|
tok->type = TK_CODE_POINT;
|
|
tok->u.code = (OnigCodePoint )num;
|
|
}
|
|
else {
|
|
/* can't read nothing or invalid format */
|
|
p = prev;
|
|
}
|
|
}
|
|
else if (IS_SYNTAX_OP(syn, ONIG_SYN_OP_ESC_X_HEX2)) {
|
|
num = scan_unsigned_hexadecimal_number(&p, end, 0, 2, enc);
|
|
if (num < 0) return num;
|
|
if (p == prev) { /* can't read nothing. */
|
|
num = 0; /* but, it's not error */
|
|
}
|
|
tok->type = TK_RAW_BYTE;
|
|
tok->base = 16;
|
|
tok->u.c = num;
|
|
}
|
|
break;
|
|
|
|
case 'u':
|
|
if (PEND) break;
|
|
|
|
prev = p;
|
|
if (IS_SYNTAX_OP2(syn, ONIG_SYN_OP2_ESC_U_HEX4)) {
|
|
num = scan_unsigned_hexadecimal_number(&p, end, 4, 4, enc);
|
|
if (num < 0) return num;
|
|
if (p == prev) { /* can't read nothing. */
|
|
num = 0; /* but, it's not error */
|
|
}
|
|
tok->type = TK_CODE_POINT;
|
|
tok->base = 16;
|
|
tok->u.code = (OnigCodePoint )num;
|
|
}
|
|
break;
|
|
|
|
case '1': case '2': case '3': case '4':
|
|
case '5': case '6': case '7': case '8': case '9':
|
|
PUNFETCH;
|
|
prev = p;
|
|
num = onig_scan_unsigned_number(&p, end, enc);
|
|
if (num < 0 || num > ONIG_MAX_BACKREF_NUM) {
|
|
goto skip_backref;
|
|
}
|
|
|
|
if (IS_SYNTAX_OP(syn, ONIG_SYN_OP_DECIMAL_BACKREF) &&
|
|
(num <= env->num_mem || num <= 9)) { /* This spec. from GNU regex */
|
|
if (IS_SYNTAX_BV(syn, ONIG_SYN_STRICT_CHECK_BACKREF)) {
|
|
if (num > env->num_mem || IS_NULL(SCANENV_MEMENV(env)[num].node))
|
|
return ONIGERR_INVALID_BACKREF;
|
|
}
|
|
|
|
tok->type = TK_BACKREF;
|
|
tok->u.backref.num = 1;
|
|
tok->u.backref.ref1 = num;
|
|
tok->u.backref.by_name = 0;
|
|
#ifdef USE_BACKREF_WITH_LEVEL
|
|
tok->u.backref.exist_level = 0;
|
|
#endif
|
|
break;
|
|
}
|
|
|
|
skip_backref:
|
|
if (c == '8' || c == '9') {
|
|
/* normal char */
|
|
p = prev; PINC;
|
|
break;
|
|
}
|
|
|
|
p = prev;
|
|
/* fall through */
|
|
case '0':
|
|
if (IS_SYNTAX_OP(syn, ONIG_SYN_OP_ESC_OCTAL3)) {
|
|
prev = p;
|
|
num = scan_unsigned_octal_number(&p, end, (c == '0' ? 2:3), enc);
|
|
if (num < 0 || num >= 256) return ONIGERR_TOO_BIG_NUMBER;
|
|
if (p == prev) { /* can't read nothing. */
|
|
num = 0; /* but, it's not error */
|
|
}
|
|
tok->type = TK_RAW_BYTE;
|
|
tok->base = 8;
|
|
tok->u.c = num;
|
|
}
|
|
else if (c != '0') {
|
|
PINC;
|
|
}
|
|
break;
|
|
|
|
case 'k':
|
|
if (!PEND && IS_SYNTAX_OP2(syn, ONIG_SYN_OP2_ESC_K_NAMED_BACKREF)) {
|
|
PFETCH(c);
|
|
if (c == '<' || c == '\'') {
|
|
UChar* name_end;
|
|
int* backs;
|
|
int back_num;
|
|
enum REF_NUM num_type;
|
|
|
|
prev = p;
|
|
|
|
#ifdef USE_BACKREF_WITH_LEVEL
|
|
name_end = NULL_UCHARP; /* no need. escape gcc warning. */
|
|
r = fetch_name_with_level((OnigCodePoint )c, &p, end, &name_end,
|
|
env, &back_num, &tok->u.backref.level, &num_type);
|
|
if (r == 1) tok->u.backref.exist_level = 1;
|
|
else tok->u.backref.exist_level = 0;
|
|
#else
|
|
r = fetch_name(c, &p, end, &name_end, env, &back_num, &num_type, 1);
|
|
#endif
|
|
if (r < 0) return r;
|
|
|
|
if (num_type != IS_NOT_NUM) {
|
|
if (num_type == IS_REL_NUM) {
|
|
back_num = backref_rel_to_abs(back_num, env);
|
|
}
|
|
if (back_num <= 0)
|
|
return ONIGERR_INVALID_BACKREF;
|
|
|
|
if (IS_SYNTAX_BV(syn, ONIG_SYN_STRICT_CHECK_BACKREF)) {
|
|
if (back_num > env->num_mem ||
|
|
IS_NULL(SCANENV_MEMENV(env)[back_num].node))
|
|
return ONIGERR_INVALID_BACKREF;
|
|
}
|
|
tok->type = TK_BACKREF;
|
|
tok->u.backref.by_name = 0;
|
|
tok->u.backref.num = 1;
|
|
tok->u.backref.ref1 = back_num;
|
|
}
|
|
else {
|
|
num = name_to_group_numbers(env, prev, name_end, &backs);
|
|
if (num <= 0) {
|
|
return ONIGERR_UNDEFINED_NAME_REFERENCE;
|
|
}
|
|
if (IS_SYNTAX_BV(syn, ONIG_SYN_STRICT_CHECK_BACKREF)) {
|
|
int i;
|
|
for (i = 0; i < num; i++) {
|
|
if (backs[i] > env->num_mem ||
|
|
IS_NULL(SCANENV_MEMENV(env)[backs[i]].node))
|
|
return ONIGERR_INVALID_BACKREF;
|
|
}
|
|
}
|
|
|
|
tok->type = TK_BACKREF;
|
|
tok->u.backref.by_name = 1;
|
|
if (num == 1) {
|
|
tok->u.backref.num = 1;
|
|
tok->u.backref.ref1 = backs[0];
|
|
}
|
|
else {
|
|
tok->u.backref.num = num;
|
|
tok->u.backref.refs = backs;
|
|
}
|
|
}
|
|
}
|
|
else
|
|
PUNFETCH;
|
|
}
|
|
break;
|
|
|
|
#ifdef USE_CALL
|
|
case 'g':
|
|
if (!PEND && IS_SYNTAX_OP2(syn, ONIG_SYN_OP2_ESC_G_SUBEXP_CALL)) {
|
|
PFETCH(c);
|
|
if (c == '<' || c == '\'') {
|
|
int gnum;
|
|
UChar* name_end;
|
|
enum REF_NUM num_type;
|
|
|
|
prev = p;
|
|
r = fetch_name((OnigCodePoint )c, &p, end, &name_end, env,
|
|
&gnum, &num_type, 1);
|
|
if (r < 0) return r;
|
|
|
|
if (num_type != IS_NOT_NUM) {
|
|
if (num_type == IS_REL_NUM) {
|
|
gnum = backref_rel_to_abs(gnum, env);
|
|
if (gnum < 0) {
|
|
onig_scan_env_set_error_string(env, ONIGERR_UNDEFINED_NAME_REFERENCE,
|
|
prev, name_end);
|
|
return ONIGERR_UNDEFINED_GROUP_REFERENCE;
|
|
}
|
|
}
|
|
tok->u.call.by_number = 1;
|
|
tok->u.call.gnum = gnum;
|
|
}
|
|
else {
|
|
tok->u.call.by_number = 0;
|
|
tok->u.call.gnum = 0;
|
|
}
|
|
|
|
tok->type = TK_CALL;
|
|
tok->u.call.name = prev;
|
|
tok->u.call.name_end = name_end;
|
|
}
|
|
else
|
|
PUNFETCH;
|
|
}
|
|
break;
|
|
#endif
|
|
|
|
case 'Q':
|
|
if (IS_SYNTAX_OP2(syn, ONIG_SYN_OP2_ESC_CAPITAL_Q_QUOTE)) {
|
|
tok->type = TK_QUOTE_OPEN;
|
|
}
|
|
break;
|
|
|
|
case 'p':
|
|
case 'P':
|
|
if (!PEND && PPEEK_IS('{') &&
|
|
IS_SYNTAX_OP2(syn, ONIG_SYN_OP2_ESC_P_BRACE_CHAR_PROPERTY)) {
|
|
PINC;
|
|
tok->type = TK_CHAR_PROPERTY;
|
|
tok->u.prop.not = c == 'P';
|
|
|
|
if (!PEND &&
|
|
IS_SYNTAX_OP2(syn, ONIG_SYN_OP2_ESC_P_BRACE_CIRCUMFLEX_NOT)) {
|
|
PFETCH(c);
|
|
if (c == '^') {
|
|
tok->u.prop.not = tok->u.prop.not == 0;
|
|
}
|
|
else
|
|
PUNFETCH;
|
|
}
|
|
}
|
|
break;
|
|
|
|
default:
|
|
{
|
|
OnigCodePoint c2;
|
|
|
|
PUNFETCH;
|
|
num = fetch_escaped_value(&p, end, env, &c2);
|
|
if (num < 0) return num;
|
|
/* set_raw: */
|
|
if (tok->u.c != c2) {
|
|
tok->type = TK_CODE_POINT;
|
|
tok->u.code = c2;
|
|
}
|
|
else { /* string */
|
|
p = tok->backp + enclen(enc, tok->backp);
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
else {
|
|
tok->u.c = c;
|
|
tok->escaped = 0;
|
|
|
|
#ifdef USE_VARIABLE_META_CHARS
|
|
if ((c != ONIG_INEFFECTIVE_META_CHAR) &&
|
|
IS_SYNTAX_OP(syn, ONIG_SYN_OP_VARIABLE_META_CHARACTERS)) {
|
|
if (c == MC_ANYCHAR(syn))
|
|
goto any_char;
|
|
else if (c == MC_ANYTIME(syn))
|
|
goto anytime;
|
|
else if (c == MC_ZERO_OR_ONE_TIME(syn))
|
|
goto zero_or_one_time;
|
|
else if (c == MC_ONE_OR_MORE_TIME(syn))
|
|
goto one_or_more_time;
|
|
else if (c == MC_ANYCHAR_ANYTIME(syn)) {
|
|
tok->type = TK_ANYCHAR_ANYTIME;
|
|
goto out;
|
|
}
|
|
}
|
|
#endif
|
|
|
|
switch (c) {
|
|
case '.':
|
|
if (! IS_SYNTAX_OP(syn, ONIG_SYN_OP_DOT_ANYCHAR)) break;
|
|
#ifdef USE_VARIABLE_META_CHARS
|
|
any_char:
|
|
#endif
|
|
tok->type = TK_ANYCHAR;
|
|
break;
|
|
|
|
case '*':
|
|
if (! IS_SYNTAX_OP(syn, ONIG_SYN_OP_ASTERISK_ZERO_INF)) break;
|
|
#ifdef USE_VARIABLE_META_CHARS
|
|
anytime:
|
|
#endif
|
|
tok->type = TK_REPEAT;
|
|
tok->u.repeat.lower = 0;
|
|
tok->u.repeat.upper = INFINITE_REPEAT;
|
|
goto greedy_check;
|
|
break;
|
|
|
|
case '+':
|
|
if (! IS_SYNTAX_OP(syn, ONIG_SYN_OP_PLUS_ONE_INF)) break;
|
|
#ifdef USE_VARIABLE_META_CHARS
|
|
one_or_more_time:
|
|
#endif
|
|
tok->type = TK_REPEAT;
|
|
tok->u.repeat.lower = 1;
|
|
tok->u.repeat.upper = INFINITE_REPEAT;
|
|
goto greedy_check;
|
|
break;
|
|
|
|
case '?':
|
|
if (! IS_SYNTAX_OP(syn, ONIG_SYN_OP_QMARK_ZERO_ONE)) break;
|
|
#ifdef USE_VARIABLE_META_CHARS
|
|
zero_or_one_time:
|
|
#endif
|
|
tok->type = TK_REPEAT;
|
|
tok->u.repeat.lower = 0;
|
|
tok->u.repeat.upper = 1;
|
|
goto greedy_check;
|
|
break;
|
|
|
|
case '{':
|
|
if (! IS_SYNTAX_OP(syn, ONIG_SYN_OP_BRACE_INTERVAL)) break;
|
|
r = fetch_interval_quantifier(&p, end, tok, env);
|
|
if (r < 0) return r; /* error */
|
|
if (r == 0) goto greedy_check2;
|
|
else if (r == 2) { /* {n} */
|
|
if (IS_SYNTAX_BV(syn, ONIG_SYN_FIXED_INTERVAL_IS_GREEDY_ONLY))
|
|
goto possessive_check;
|
|
|
|
goto greedy_check2;
|
|
}
|
|
/* r == 1 : normal char */
|
|
break;
|
|
|
|
case '|':
|
|
if (! IS_SYNTAX_OP(syn, ONIG_SYN_OP_VBAR_ALT)) break;
|
|
tok->type = TK_ALT;
|
|
break;
|
|
|
|
case '(':
|
|
if (!PEND && PPEEK_IS('?') &&
|
|
IS_SYNTAX_OP2(syn, ONIG_SYN_OP2_QMARK_GROUP_EFFECT)) {
|
|
PINC;
|
|
if (! PEND) {
|
|
c = PPEEK;
|
|
if (c == '#') {
|
|
PFETCH(c);
|
|
while (1) {
|
|
if (PEND) return ONIGERR_END_PATTERN_IN_GROUP;
|
|
PFETCH(c);
|
|
if (c == MC_ESC(syn)) {
|
|
if (! PEND) PFETCH(c);
|
|
}
|
|
else {
|
|
if (c == ')') break;
|
|
}
|
|
}
|
|
goto start;
|
|
}
|
|
else if (IS_SYNTAX_OP2(syn, ONIG_SYN_OP2_QMARK_PERL_SUBEXP_CALL)) {
|
|
int gnum;
|
|
UChar* name;
|
|
UChar* name_end;
|
|
enum REF_NUM num_type;
|
|
|
|
switch (c) {
|
|
case '&':
|
|
{
|
|
PINC;
|
|
name = p;
|
|
r = fetch_name((OnigCodePoint )'(', &p, end, &name_end, env, &gnum,
|
|
&num_type, 0);
|
|
if (r < 0) return r;
|
|
|
|
tok->type = TK_CALL;
|
|
tok->u.call.by_number = 0;
|
|
tok->u.call.gnum = 0;
|
|
tok->u.call.name = name;
|
|
tok->u.call.name_end = name_end;
|
|
}
|
|
break;
|
|
|
|
case 'R':
|
|
tok->type = TK_CALL;
|
|
tok->u.call.by_number = 1;
|
|
tok->u.call.gnum = 0;
|
|
tok->u.call.name = p;
|
|
PINC;
|
|
if (! PPEEK_IS(')')) return ONIGERR_UNDEFINED_GROUP_OPTION;
|
|
tok->u.call.name_end = p;
|
|
break;
|
|
|
|
case '-':
|
|
case '+':
|
|
goto lparen_qmark_num;
|
|
break;
|
|
default:
|
|
if (! ONIGENC_IS_CODE_DIGIT(enc, c)) goto lparen_qmark_end;
|
|
|
|
lparen_qmark_num:
|
|
{
|
|
name = p;
|
|
r = fetch_name((OnigCodePoint )'(', &p, end, &name_end, env,
|
|
&gnum, &num_type, 1);
|
|
if (r < 0) return r;
|
|
|
|
if (num_type == IS_NOT_NUM) {
|
|
return ONIGERR_INVALID_GROUP_NAME;
|
|
}
|
|
else {
|
|
if (num_type == IS_REL_NUM) {
|
|
gnum = backref_rel_to_abs(gnum, env);
|
|
if (gnum < 0) {
|
|
onig_scan_env_set_error_string(env,
|
|
ONIGERR_UNDEFINED_NAME_REFERENCE, name, name_end);
|
|
return ONIGERR_UNDEFINED_GROUP_REFERENCE;
|
|
}
|
|
}
|
|
tok->u.call.by_number = 1;
|
|
tok->u.call.gnum = gnum;
|
|
}
|
|
|
|
tok->type = TK_CALL;
|
|
tok->u.call.name = name;
|
|
tok->u.call.name_end = name_end;
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
lparen_qmark_end:
|
|
PUNFETCH;
|
|
}
|
|
|
|
if (! IS_SYNTAX_OP(syn, ONIG_SYN_OP_LPAREN_SUBEXP)) break;
|
|
tok->type = TK_SUBEXP_OPEN;
|
|
break;
|
|
|
|
case ')':
|
|
if (! IS_SYNTAX_OP(syn, ONIG_SYN_OP_LPAREN_SUBEXP)) break;
|
|
tok->type = TK_SUBEXP_CLOSE;
|
|
break;
|
|
|
|
case '^':
|
|
if (! IS_SYNTAX_OP(syn, ONIG_SYN_OP_LINE_ANCHOR)) break;
|
|
tok->type = TK_ANCHOR;
|
|
tok->u.subtype = (IS_SINGLELINE(env->options)
|
|
? ANCR_BEGIN_BUF : ANCR_BEGIN_LINE);
|
|
break;
|
|
|
|
case '$':
|
|
if (! IS_SYNTAX_OP(syn, ONIG_SYN_OP_LINE_ANCHOR)) break;
|
|
tok->type = TK_ANCHOR;
|
|
tok->u.subtype = (IS_SINGLELINE(env->options)
|
|
? ANCR_SEMI_END_BUF : ANCR_END_LINE);
|
|
break;
|
|
|
|
case '[':
|
|
if (! IS_SYNTAX_OP(syn, ONIG_SYN_OP_BRACKET_CC)) break;
|
|
tok->type = TK_CC_OPEN;
|
|
break;
|
|
|
|
case ']':
|
|
if (*src > env->pattern) /* /].../ is allowed. */
|
|
CLOSE_BRACKET_WITHOUT_ESC_WARN(env, (UChar* )"]");
|
|
break;
|
|
|
|
case '#':
|
|
if (IS_EXTEND(env->options)) {
|
|
while (!PEND) {
|
|
PFETCH(c);
|
|
if (ONIGENC_IS_CODE_NEWLINE(enc, c))
|
|
break;
|
|
}
|
|
goto start;
|
|
break;
|
|
}
|
|
break;
|
|
|
|
case ' ': case '\t': case '\n': case '\r': case '\f':
|
|
if (IS_EXTEND(env->options))
|
|
goto start;
|
|
break;
|
|
|
|
default:
|
|
/* string */
|
|
break;
|
|
}
|
|
}
|
|
|
|
#ifdef USE_VARIABLE_META_CHARS
|
|
out:
|
|
#endif
|
|
*src = p;
|
|
return tok->type;
|
|
}
|
|
|
|
static int
|
|
add_ctype_to_cc_by_range(CClassNode* cc, int ctype ARG_UNUSED, int not,
|
|
OnigEncoding enc ARG_UNUSED, OnigCodePoint sb_out,
|
|
const OnigCodePoint mbr[])
|
|
{
|
|
int i, r;
|
|
OnigCodePoint j;
|
|
|
|
int n = ONIGENC_CODE_RANGE_NUM(mbr);
|
|
|
|
if (not == 0) {
|
|
for (i = 0; i < n; i++) {
|
|
for (j = ONIGENC_CODE_RANGE_FROM(mbr, i);
|
|
j <= ONIGENC_CODE_RANGE_TO(mbr, i); j++) {
|
|
if (j >= sb_out) {
|
|
if (j > ONIGENC_CODE_RANGE_FROM(mbr, i)) {
|
|
r = add_code_range_to_buf(&(cc->mbuf), j,
|
|
ONIGENC_CODE_RANGE_TO(mbr, i));
|
|
if (r != 0) return r;
|
|
i++;
|
|
}
|
|
|
|
goto sb_end;
|
|
}
|
|
BITSET_SET_BIT(cc->bs, j);
|
|
}
|
|
}
|
|
|
|
sb_end:
|
|
for ( ; i < n; i++) {
|
|
r = add_code_range_to_buf(&(cc->mbuf),
|
|
ONIGENC_CODE_RANGE_FROM(mbr, i),
|
|
ONIGENC_CODE_RANGE_TO(mbr, i));
|
|
if (r != 0) return r;
|
|
}
|
|
}
|
|
else {
|
|
OnigCodePoint prev = 0;
|
|
|
|
for (i = 0; i < n; i++) {
|
|
for (j = prev; j < ONIGENC_CODE_RANGE_FROM(mbr, i); j++) {
|
|
if (j >= sb_out) {
|
|
goto sb_end2;
|
|
}
|
|
BITSET_SET_BIT(cc->bs, j);
|
|
}
|
|
prev = ONIGENC_CODE_RANGE_TO(mbr, i) + 1;
|
|
}
|
|
for (j = prev; j < sb_out; j++) {
|
|
BITSET_SET_BIT(cc->bs, j);
|
|
}
|
|
|
|
sb_end2:
|
|
prev = sb_out;
|
|
|
|
for (i = 0; i < n; i++) {
|
|
if (prev < ONIGENC_CODE_RANGE_FROM(mbr, i)) {
|
|
r = add_code_range_to_buf(&(cc->mbuf), prev,
|
|
ONIGENC_CODE_RANGE_FROM(mbr, i) - 1);
|
|
if (r != 0) return r;
|
|
}
|
|
prev = ONIGENC_CODE_RANGE_TO(mbr, i) + 1;
|
|
if (prev == 0) goto end;
|
|
}
|
|
|
|
r = add_code_range_to_buf(&(cc->mbuf), prev, MAX_CODE_POINT);
|
|
if (r != 0) return r;
|
|
}
|
|
|
|
end:
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
add_ctype_to_cc_by_range_limit(CClassNode* cc, int ctype ARG_UNUSED, int not,
|
|
OnigEncoding enc ARG_UNUSED,
|
|
OnigCodePoint sb_out,
|
|
const OnigCodePoint mbr[], OnigCodePoint limit)
|
|
{
|
|
int i, r;
|
|
OnigCodePoint j;
|
|
OnigCodePoint from;
|
|
OnigCodePoint to;
|
|
|
|
int n = ONIGENC_CODE_RANGE_NUM(mbr);
|
|
|
|
if (not == 0) {
|
|
for (i = 0; i < n; i++) {
|
|
for (j = ONIGENC_CODE_RANGE_FROM(mbr, i);
|
|
j <= ONIGENC_CODE_RANGE_TO(mbr, i); j++) {
|
|
if (j > limit) goto end;
|
|
if (j >= sb_out) {
|
|
if (j > ONIGENC_CODE_RANGE_FROM(mbr, i)) {
|
|
to = ONIGENC_CODE_RANGE_TO(mbr, i);
|
|
if (to > limit) to = limit;
|
|
r = add_code_range_to_buf(&(cc->mbuf), j, to);
|
|
if (r != 0) return r;
|
|
i++;
|
|
}
|
|
|
|
goto sb_end;
|
|
}
|
|
BITSET_SET_BIT(cc->bs, j);
|
|
}
|
|
}
|
|
|
|
sb_end:
|
|
for ( ; i < n; i++) {
|
|
from = ONIGENC_CODE_RANGE_FROM(mbr, i);
|
|
to = ONIGENC_CODE_RANGE_TO(mbr, i);
|
|
if (from > limit) break;
|
|
if (to > limit) to = limit;
|
|
r = add_code_range_to_buf(&(cc->mbuf), from, to);
|
|
if (r != 0) return r;
|
|
}
|
|
}
|
|
else {
|
|
OnigCodePoint prev = 0;
|
|
|
|
for (i = 0; i < n; i++) {
|
|
from = ONIGENC_CODE_RANGE_FROM(mbr, i);
|
|
if (from > limit) {
|
|
for (j = prev; j < sb_out; j++) {
|
|
BITSET_SET_BIT(cc->bs, j);
|
|
}
|
|
goto sb_end2;
|
|
}
|
|
for (j = prev; j < from; j++) {
|
|
if (j >= sb_out) goto sb_end2;
|
|
BITSET_SET_BIT(cc->bs, j);
|
|
}
|
|
prev = ONIGENC_CODE_RANGE_TO(mbr, i);
|
|
if (prev > limit) prev = limit;
|
|
prev++;
|
|
if (prev == 0) goto end;
|
|
}
|
|
for (j = prev; j < sb_out; j++) {
|
|
BITSET_SET_BIT(cc->bs, j);
|
|
}
|
|
|
|
sb_end2:
|
|
prev = sb_out;
|
|
|
|
for (i = 0; i < n; i++) {
|
|
from = ONIGENC_CODE_RANGE_FROM(mbr, i);
|
|
if (from > limit) goto last;
|
|
|
|
if (prev < from) {
|
|
r = add_code_range_to_buf(&(cc->mbuf), prev, from - 1);
|
|
if (r != 0) return r;
|
|
}
|
|
prev = ONIGENC_CODE_RANGE_TO(mbr, i);
|
|
if (prev > limit) prev = limit;
|
|
prev++;
|
|
if (prev == 0) goto end;
|
|
}
|
|
|
|
last:
|
|
r = add_code_range_to_buf(&(cc->mbuf), prev, MAX_CODE_POINT);
|
|
if (r != 0) return r;
|
|
}
|
|
|
|
end:
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
add_ctype_to_cc(CClassNode* cc, int ctype, int not, ScanEnv* env)
|
|
{
|
|
#define ASCII_LIMIT 127
|
|
|
|
int c, r;
|
|
int ascii_mode;
|
|
const OnigCodePoint *ranges;
|
|
OnigCodePoint limit;
|
|
OnigCodePoint sb_out;
|
|
OnigEncoding enc = env->enc;
|
|
|
|
ascii_mode = IS_ASCII_MODE_CTYPE_OPTION(ctype, env->options);
|
|
|
|
r = ONIGENC_GET_CTYPE_CODE_RANGE(enc, ctype, &sb_out, &ranges);
|
|
if (r == 0) {
|
|
if (ascii_mode == 0)
|
|
r = add_ctype_to_cc_by_range(cc, ctype, not, env->enc, sb_out, ranges);
|
|
else
|
|
r = add_ctype_to_cc_by_range_limit(cc, ctype, not, env->enc, sb_out,
|
|
ranges, ASCII_LIMIT);
|
|
return r;
|
|
}
|
|
else if (r != ONIG_NO_SUPPORT_CONFIG) {
|
|
return r;
|
|
}
|
|
|
|
r = 0;
|
|
limit = ascii_mode ? ASCII_LIMIT : SINGLE_BYTE_SIZE;
|
|
|
|
switch (ctype) {
|
|
case ONIGENC_CTYPE_ALPHA:
|
|
case ONIGENC_CTYPE_BLANK:
|
|
case ONIGENC_CTYPE_CNTRL:
|
|
case ONIGENC_CTYPE_DIGIT:
|
|
case ONIGENC_CTYPE_LOWER:
|
|
case ONIGENC_CTYPE_PUNCT:
|
|
case ONIGENC_CTYPE_SPACE:
|
|
case ONIGENC_CTYPE_UPPER:
|
|
case ONIGENC_CTYPE_XDIGIT:
|
|
case ONIGENC_CTYPE_ASCII:
|
|
case ONIGENC_CTYPE_ALNUM:
|
|
if (not != 0) {
|
|
for (c = 0; c < (int )limit; c++) {
|
|
if (! ONIGENC_IS_CODE_CTYPE(enc, (OnigCodePoint )c, ctype))
|
|
BITSET_SET_BIT(cc->bs, c);
|
|
}
|
|
for (c = limit; c < SINGLE_BYTE_SIZE; c++) {
|
|
BITSET_SET_BIT(cc->bs, c);
|
|
}
|
|
|
|
ADD_ALL_MULTI_BYTE_RANGE(enc, cc->mbuf);
|
|
}
|
|
else {
|
|
for (c = 0; c < (int )limit; c++) {
|
|
if (ONIGENC_IS_CODE_CTYPE(enc, (OnigCodePoint )c, ctype))
|
|
BITSET_SET_BIT(cc->bs, c);
|
|
}
|
|
}
|
|
break;
|
|
|
|
case ONIGENC_CTYPE_GRAPH:
|
|
case ONIGENC_CTYPE_PRINT:
|
|
case ONIGENC_CTYPE_WORD:
|
|
if (not != 0) {
|
|
for (c = 0; c < (int )limit; c++) {
|
|
if (ONIGENC_CODE_TO_MBCLEN(enc, c) > 0 /* check invalid code point */
|
|
&& ! ONIGENC_IS_CODE_CTYPE(enc, (OnigCodePoint )c, ctype))
|
|
BITSET_SET_BIT(cc->bs, c);
|
|
}
|
|
for (c = limit; c < SINGLE_BYTE_SIZE; c++) {
|
|
if (ONIGENC_CODE_TO_MBCLEN(enc, c) > 0)
|
|
BITSET_SET_BIT(cc->bs, c);
|
|
}
|
|
}
|
|
else {
|
|
for (c = 0; c < (int )limit; c++) {
|
|
if (ONIGENC_IS_CODE_CTYPE(enc, (OnigCodePoint )c, ctype))
|
|
BITSET_SET_BIT(cc->bs, c);
|
|
}
|
|
if (ascii_mode == 0)
|
|
ADD_ALL_MULTI_BYTE_RANGE(enc, cc->mbuf);
|
|
}
|
|
break;
|
|
|
|
default:
|
|
return ONIGERR_PARSER_BUG;
|
|
break;
|
|
}
|
|
|
|
return r;
|
|
}
|
|
|
|
static int
|
|
parse_posix_bracket(CClassNode* cc, UChar** src, UChar* end, ScanEnv* env)
|
|
{
|
|
#define POSIX_BRACKET_CHECK_LIMIT_LENGTH 20
|
|
#define POSIX_BRACKET_NAME_MIN_LEN 4
|
|
|
|
static PosixBracketEntryType PBS[] = {
|
|
{ (UChar* )"alnum", ONIGENC_CTYPE_ALNUM, 5 },
|
|
{ (UChar* )"alpha", ONIGENC_CTYPE_ALPHA, 5 },
|
|
{ (UChar* )"blank", ONIGENC_CTYPE_BLANK, 5 },
|
|
{ (UChar* )"cntrl", ONIGENC_CTYPE_CNTRL, 5 },
|
|
{ (UChar* )"digit", ONIGENC_CTYPE_DIGIT, 5 },
|
|
{ (UChar* )"graph", ONIGENC_CTYPE_GRAPH, 5 },
|
|
{ (UChar* )"lower", ONIGENC_CTYPE_LOWER, 5 },
|
|
{ (UChar* )"print", ONIGENC_CTYPE_PRINT, 5 },
|
|
{ (UChar* )"punct", ONIGENC_CTYPE_PUNCT, 5 },
|
|
{ (UChar* )"space", ONIGENC_CTYPE_SPACE, 5 },
|
|
{ (UChar* )"upper", ONIGENC_CTYPE_UPPER, 5 },
|
|
{ (UChar* )"xdigit", ONIGENC_CTYPE_XDIGIT, 6 },
|
|
{ (UChar* )"ascii", ONIGENC_CTYPE_ASCII, 5 },
|
|
{ (UChar* )"word", ONIGENC_CTYPE_WORD, 4 },
|
|
{ (UChar* )NULL, -1, 0 }
|
|
};
|
|
|
|
PosixBracketEntryType *pb;
|
|
int not, i, r;
|
|
OnigCodePoint c;
|
|
OnigEncoding enc = env->enc;
|
|
UChar *p = *src;
|
|
|
|
if (PPEEK_IS('^')) {
|
|
PINC_S;
|
|
not = 1;
|
|
}
|
|
else
|
|
not = 0;
|
|
|
|
if (onigenc_strlen(enc, p, end) < POSIX_BRACKET_NAME_MIN_LEN + 3)
|
|
goto not_posix_bracket;
|
|
|
|
for (pb = PBS; IS_NOT_NULL(pb->name); pb++) {
|
|
if (onigenc_with_ascii_strncmp(enc, p, end, pb->name, pb->len) == 0) {
|
|
p = (UChar* )onigenc_step(enc, p, end, pb->len);
|
|
if (onigenc_with_ascii_strncmp(enc, p, end, (UChar* )":]", 2) != 0)
|
|
return ONIGERR_INVALID_POSIX_BRACKET_TYPE;
|
|
|
|
r = add_ctype_to_cc(cc, pb->ctype, not, env);
|
|
if (r != 0) return r;
|
|
|
|
PINC_S; PINC_S;
|
|
*src = p;
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
not_posix_bracket:
|
|
c = 0;
|
|
i = 0;
|
|
while (!PEND && ((c = PPEEK) != ':') && c != ']') {
|
|
PINC_S;
|
|
if (++i > POSIX_BRACKET_CHECK_LIMIT_LENGTH) break;
|
|
}
|
|
if (c == ':' && ! PEND) {
|
|
PINC_S;
|
|
if (! PEND) {
|
|
PFETCH_S(c);
|
|
if (c == ']')
|
|
return ONIGERR_INVALID_POSIX_BRACKET_TYPE;
|
|
}
|
|
}
|
|
|
|
return 1; /* 1: is not POSIX bracket, but no error. */
|
|
}
|
|
|
|
static int
|
|
fetch_char_property_to_ctype(UChar** src, UChar* end, ScanEnv* env)
|
|
{
|
|
int r;
|
|
OnigCodePoint c;
|
|
OnigEncoding enc = env->enc;
|
|
UChar *prev, *start, *p = *src;
|
|
|
|
r = 0;
|
|
start = prev = p;
|
|
|
|
while (!PEND) {
|
|
prev = p;
|
|
PFETCH_S(c);
|
|
if (c == '}') {
|
|
r = ONIGENC_PROPERTY_NAME_TO_CTYPE(enc, start, prev);
|
|
if (r < 0) break;
|
|
|
|
*src = p;
|
|
return r;
|
|
}
|
|
else if (c == '(' || c == ')' || c == '{' || c == '|') {
|
|
r = ONIGERR_INVALID_CHAR_PROPERTY_NAME;
|
|
break;
|
|
}
|
|
}
|
|
|
|
onig_scan_env_set_error_string(env, r, *src, prev);
|
|
return r;
|
|
}
|
|
|
|
static int
|
|
parse_char_property(Node** np, PToken* tok, UChar** src, UChar* end, ScanEnv* env)
|
|
{
|
|
int r, ctype;
|
|
CClassNode* cc;
|
|
|
|
ctype = fetch_char_property_to_ctype(src, end, env);
|
|
if (ctype < 0) return ctype;
|
|
|
|
*np = node_new_cclass();
|
|
CHECK_NULL_RETURN_MEMERR(*np);
|
|
cc = CCLASS_(*np);
|
|
r = add_ctype_to_cc(cc, ctype, 0, env);
|
|
if (r != 0) return r;
|
|
if (tok->u.prop.not != 0) NCCLASS_SET_NOT(cc);
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
enum CCSTATE {
|
|
CCS_VALUE,
|
|
CCS_RANGE,
|
|
CCS_COMPLETE,
|
|
CCS_START
|
|
};
|
|
|
|
enum CCVALTYPE {
|
|
CCV_SB,
|
|
CCV_CODE_POINT,
|
|
CCV_CLASS
|
|
};
|
|
|
|
static int
|
|
next_state_class(CClassNode* cc, OnigCodePoint* vs, enum CCVALTYPE* type,
|
|
enum CCSTATE* state, ScanEnv* env)
|
|
{
|
|
int r;
|
|
|
|
if (*state == CCS_RANGE)
|
|
return ONIGERR_CHAR_CLASS_VALUE_AT_END_OF_RANGE;
|
|
|
|
if (*state == CCS_VALUE && *type != CCV_CLASS) {
|
|
if (*type == CCV_SB)
|
|
BITSET_SET_BIT(cc->bs, (int )(*vs));
|
|
else if (*type == CCV_CODE_POINT) {
|
|
r = add_code_range(&(cc->mbuf), env, *vs, *vs);
|
|
if (r < 0) return r;
|
|
}
|
|
}
|
|
|
|
*state = CCS_VALUE;
|
|
*type = CCV_CLASS;
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
next_state_val(CClassNode* cc, OnigCodePoint *from, OnigCodePoint to,
|
|
int* from_israw, int to_israw,
|
|
enum CCVALTYPE intype, enum CCVALTYPE* type,
|
|
enum CCSTATE* state, ScanEnv* env)
|
|
{
|
|
int r;
|
|
|
|
switch (*state) {
|
|
case CCS_VALUE:
|
|
if (*type == CCV_SB) {
|
|
if (*from > 0xff)
|
|
return ONIGERR_INVALID_CODE_POINT_VALUE;
|
|
|
|
BITSET_SET_BIT(cc->bs, (int )(*from));
|
|
}
|
|
else if (*type == CCV_CODE_POINT) {
|
|
r = add_code_range(&(cc->mbuf), env, *from, *from);
|
|
if (r < 0) return r;
|
|
}
|
|
break;
|
|
|
|
case CCS_RANGE:
|
|
if (intype == *type) {
|
|
if (intype == CCV_SB) {
|
|
if (*from > 0xff || to > 0xff)
|
|
return ONIGERR_INVALID_CODE_POINT_VALUE;
|
|
|
|
if (*from > to) {
|
|
if (IS_SYNTAX_BV(env->syntax, ONIG_SYN_ALLOW_EMPTY_RANGE_IN_CC))
|
|
goto ccs_range_end;
|
|
else
|
|
return ONIGERR_EMPTY_RANGE_IN_CHAR_CLASS;
|
|
}
|
|
bitset_set_range(cc->bs, (int )*from, (int )to);
|
|
}
|
|
else {
|
|
r = add_code_range(&(cc->mbuf), env, *from, to);
|
|
if (r < 0) return r;
|
|
}
|
|
}
|
|
else {
|
|
if (*from > to) {
|
|
if (IS_SYNTAX_BV(env->syntax, ONIG_SYN_ALLOW_EMPTY_RANGE_IN_CC))
|
|
goto ccs_range_end;
|
|
else
|
|
return ONIGERR_EMPTY_RANGE_IN_CHAR_CLASS;
|
|
}
|
|
bitset_set_range(cc->bs, (int )*from, (int )(to < 0xff ? to : 0xff));
|
|
r = add_code_range(&(cc->mbuf), env, (OnigCodePoint )*from, to);
|
|
if (r < 0) return r;
|
|
}
|
|
ccs_range_end:
|
|
*state = CCS_COMPLETE;
|
|
break;
|
|
|
|
case CCS_COMPLETE:
|
|
case CCS_START:
|
|
*state = CCS_VALUE;
|
|
break;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
|
|
*from_israw = to_israw;
|
|
*from = to;
|
|
*type = intype;
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
code_exist_check(OnigCodePoint c, UChar* from, UChar* end, int ignore_escaped,
|
|
ScanEnv* env)
|
|
{
|
|
int in_esc;
|
|
OnigCodePoint code;
|
|
OnigEncoding enc = env->enc;
|
|
UChar* p = from;
|
|
|
|
in_esc = 0;
|
|
while (! PEND) {
|
|
if (ignore_escaped && in_esc) {
|
|
in_esc = 0;
|
|
}
|
|
else {
|
|
PFETCH_S(code);
|
|
if (code == c) return 1;
|
|
if (code == MC_ESC(env->syntax)) in_esc = 1;
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
parse_char_class(Node** np, PToken* tok, UChar** src, UChar* end, ScanEnv* env)
|
|
{
|
|
int r, neg, len, fetched, and_start;
|
|
OnigCodePoint v, vs;
|
|
UChar *p;
|
|
Node* node;
|
|
CClassNode *cc, *prev_cc;
|
|
CClassNode work_cc;
|
|
|
|
enum CCSTATE state;
|
|
enum CCVALTYPE val_type, in_type;
|
|
int val_israw, in_israw;
|
|
|
|
*np = NULL_NODE;
|
|
env->parse_depth++;
|
|
if (env->parse_depth > ParseDepthLimit)
|
|
return ONIGERR_PARSE_DEPTH_LIMIT_OVER;
|
|
|
|
prev_cc = (CClassNode* )NULL;
|
|
r = fetch_token_in_cc(tok, src, end, env);
|
|
if (r == TK_CHAR && tok->u.c == '^' && tok->escaped == 0) {
|
|
neg = 1;
|
|
r = fetch_token_in_cc(tok, src, end, env);
|
|
}
|
|
else {
|
|
neg = 0;
|
|
}
|
|
|
|
if (r < 0) return r;
|
|
if (r == TK_CC_CLOSE) {
|
|
if (! code_exist_check((OnigCodePoint )']',
|
|
*src, env->pattern_end, 1, env))
|
|
return ONIGERR_EMPTY_CHAR_CLASS;
|
|
|
|
CC_ESC_WARN(env, (UChar* )"]");
|
|
r = tok->type = TK_CHAR; /* allow []...] */
|
|
}
|
|
|
|
*np = node = node_new_cclass();
|
|
CHECK_NULL_RETURN_MEMERR(node);
|
|
cc = CCLASS_(node);
|
|
|
|
and_start = 0;
|
|
state = CCS_START;
|
|
p = *src;
|
|
while (r != TK_CC_CLOSE) {
|
|
fetched = 0;
|
|
switch (r) {
|
|
case TK_CHAR:
|
|
any_char_in:
|
|
len = ONIGENC_CODE_TO_MBCLEN(env->enc, tok->u.c);
|
|
if (len > 1) {
|
|
in_type = CCV_CODE_POINT;
|
|
}
|
|
else if (len < 0) {
|
|
r = len;
|
|
goto err;
|
|
}
|
|
else {
|
|
/* sb_char: */
|
|
in_type = CCV_SB;
|
|
}
|
|
v = (OnigCodePoint )tok->u.c;
|
|
in_israw = 0;
|
|
goto val_entry2;
|
|
break;
|
|
|
|
case TK_RAW_BYTE:
|
|
/* tok->base != 0 : octal or hexadec. */
|
|
if (! ONIGENC_IS_SINGLEBYTE(env->enc) && tok->base != 0) {
|
|
int i, j;
|
|
UChar buf[ONIGENC_CODE_TO_MBC_MAXLEN];
|
|
UChar* bufe = buf + ONIGENC_CODE_TO_MBC_MAXLEN;
|
|
UChar* psave = p;
|
|
int base = tok->base;
|
|
|
|
buf[0] = tok->u.c;
|
|
for (i = 1; i < ONIGENC_MBC_MAXLEN(env->enc); i++) {
|
|
r = fetch_token_in_cc(tok, &p, end, env);
|
|
if (r < 0) goto err;
|
|
if (r != TK_RAW_BYTE || tok->base != base) {
|
|
fetched = 1;
|
|
break;
|
|
}
|
|
buf[i] = tok->u.c;
|
|
}
|
|
|
|
if (i < ONIGENC_MBC_MINLEN(env->enc)) {
|
|
r = ONIGERR_TOO_SHORT_MULTI_BYTE_STRING;
|
|
goto err;
|
|
}
|
|
|
|
/* clear buf tail */
|
|
for (j = i; j < ONIGENC_CODE_TO_MBC_MAXLEN; j++) buf[j] = '\0';
|
|
|
|
len = enclen(env->enc, buf);
|
|
if (i < len) {
|
|
r = ONIGERR_TOO_SHORT_MULTI_BYTE_STRING;
|
|
goto err;
|
|
}
|
|
else if (i > len) { /* fetch back */
|
|
p = psave;
|
|
for (i = 1; i < len; i++) {
|
|
r = fetch_token_in_cc(tok, &p, end, env);
|
|
}
|
|
fetched = 0;
|
|
}
|
|
|
|
if (i == 1) {
|
|
v = (OnigCodePoint )buf[0];
|
|
goto raw_single;
|
|
}
|
|
else {
|
|
v = ONIGENC_MBC_TO_CODE(env->enc, buf, bufe);
|
|
in_type = CCV_CODE_POINT;
|
|
}
|
|
}
|
|
else {
|
|
v = (OnigCodePoint )tok->u.c;
|
|
raw_single:
|
|
in_type = CCV_SB;
|
|
}
|
|
in_israw = 1;
|
|
goto val_entry2;
|
|
break;
|
|
|
|
case TK_CODE_POINT:
|
|
v = tok->u.code;
|
|
in_israw = 1;
|
|
val_entry:
|
|
len = ONIGENC_CODE_TO_MBCLEN(env->enc, v);
|
|
if (len < 0) {
|
|
if (state != CCS_RANGE ||
|
|
! IS_SYNTAX_BV(env->syntax,
|
|
ONIG_SYN_ALLOW_INVALID_CODE_END_OF_RANGE_IN_CC) ||
|
|
v < 0x100 || ONIGENC_MBC_MAXLEN(env->enc) == 1) {
|
|
r = len;
|
|
goto err;
|
|
}
|
|
}
|
|
in_type = (len == 1 ? CCV_SB : CCV_CODE_POINT);
|
|
val_entry2:
|
|
r = next_state_val(cc, &vs, v, &val_israw, in_israw, in_type, &val_type,
|
|
&state, env);
|
|
if (r != 0) goto err;
|
|
break;
|
|
|
|
case TK_POSIX_BRACKET_OPEN:
|
|
r = parse_posix_bracket(cc, &p, end, env);
|
|
if (r < 0) goto err;
|
|
if (r == 1) { /* is not POSIX bracket */
|
|
CC_ESC_WARN(env, (UChar* )"[");
|
|
p = tok->backp;
|
|
v = (OnigCodePoint )tok->u.c;
|
|
in_israw = 0;
|
|
goto val_entry;
|
|
}
|
|
goto next_class;
|
|
break;
|
|
|
|
case TK_CHAR_TYPE:
|
|
r = add_ctype_to_cc(cc, tok->u.prop.ctype, tok->u.prop.not, env);
|
|
if (r != 0) goto err;
|
|
|
|
next_class:
|
|
r = next_state_class(cc, &vs, &val_type, &state, env);
|
|
if (r != 0) goto err;
|
|
break;
|
|
|
|
case TK_CHAR_PROPERTY:
|
|
{
|
|
int ctype = fetch_char_property_to_ctype(&p, end, env);
|
|
if (ctype < 0) {
|
|
r = ctype;
|
|
goto err;
|
|
}
|
|
r = add_ctype_to_cc(cc, ctype, tok->u.prop.not, env);
|
|
if (r != 0) goto err;
|
|
goto next_class;
|
|
}
|
|
break;
|
|
|
|
case TK_CC_RANGE:
|
|
if (state == CCS_VALUE) {
|
|
r = fetch_token_in_cc(tok, &p, end, env);
|
|
if (r < 0) goto err;
|
|
fetched = 1;
|
|
if (r == TK_CC_CLOSE) { /* allow [x-] */
|
|
range_end_val:
|
|
v = (OnigCodePoint )'-';
|
|
in_israw = 0;
|
|
goto val_entry;
|
|
}
|
|
else if (r == TK_CC_AND) {
|
|
CC_ESC_WARN(env, (UChar* )"-");
|
|
goto range_end_val;
|
|
}
|
|
|
|
if (val_type == CCV_CLASS) {
|
|
r = ONIGERR_UNMATCHED_RANGE_SPECIFIER_IN_CHAR_CLASS;
|
|
goto err;
|
|
}
|
|
|
|
state = CCS_RANGE;
|
|
}
|
|
else if (state == CCS_START) {
|
|
/* [-xa] is allowed */
|
|
v = (OnigCodePoint )tok->u.c;
|
|
in_israw = 0;
|
|
|
|
r = fetch_token_in_cc(tok, &p, end, env);
|
|
if (r < 0) goto err;
|
|
fetched = 1;
|
|
/* [--x] or [a&&-x] is warned. */
|
|
if (r == TK_CC_RANGE || and_start != 0)
|
|
CC_ESC_WARN(env, (UChar* )"-");
|
|
|
|
goto val_entry;
|
|
}
|
|
else if (state == CCS_RANGE) {
|
|
CC_ESC_WARN(env, (UChar* )"-");
|
|
goto any_char_in; /* [!--x] is allowed */
|
|
}
|
|
else { /* CCS_COMPLETE */
|
|
r = fetch_token_in_cc(tok, &p, end, env);
|
|
if (r < 0) goto err;
|
|
fetched = 1;
|
|
if (r == TK_CC_CLOSE) goto range_end_val; /* allow [a-b-] */
|
|
else if (r == TK_CC_AND) {
|
|
CC_ESC_WARN(env, (UChar* )"-");
|
|
goto range_end_val;
|
|
}
|
|
|
|
if (IS_SYNTAX_BV(env->syntax, ONIG_SYN_ALLOW_DOUBLE_RANGE_OP_IN_CC)) {
|
|
CC_ESC_WARN(env, (UChar* )"-");
|
|
goto range_end_val; /* [0-9-a] is allowed as [0-9\-a] */
|
|
}
|
|
r = ONIGERR_UNMATCHED_RANGE_SPECIFIER_IN_CHAR_CLASS;
|
|
goto err;
|
|
}
|
|
break;
|
|
|
|
case TK_CC_CC_OPEN: /* [ */
|
|
{
|
|
Node *anode;
|
|
CClassNode* acc;
|
|
|
|
r = parse_char_class(&anode, tok, &p, end, env);
|
|
if (r != 0) {
|
|
onig_node_free(anode);
|
|
goto cc_open_err;
|
|
}
|
|
acc = CCLASS_(anode);
|
|
r = or_cclass(cc, acc, env->enc);
|
|
onig_node_free(anode);
|
|
|
|
cc_open_err:
|
|
if (r != 0) goto err;
|
|
}
|
|
break;
|
|
|
|
case TK_CC_AND: /* && */
|
|
{
|
|
if (state == CCS_VALUE) {
|
|
r = next_state_val(cc, &vs, 0, &val_israw, 0, val_type,
|
|
&val_type, &state, env);
|
|
if (r != 0) goto err;
|
|
}
|
|
/* initialize local variables */
|
|
and_start = 1;
|
|
state = CCS_START;
|
|
|
|
if (IS_NOT_NULL(prev_cc)) {
|
|
r = and_cclass(prev_cc, cc, env->enc);
|
|
if (r != 0) goto err;
|
|
bbuf_free(cc->mbuf);
|
|
}
|
|
else {
|
|
prev_cc = cc;
|
|
cc = &work_cc;
|
|
}
|
|
initialize_cclass(cc);
|
|
}
|
|
break;
|
|
|
|
case TK_EOT:
|
|
r = ONIGERR_PREMATURE_END_OF_CHAR_CLASS;
|
|
goto err;
|
|
break;
|
|
default:
|
|
r = ONIGERR_PARSER_BUG;
|
|
goto err;
|
|
break;
|
|
}
|
|
|
|
if (fetched)
|
|
r = tok->type;
|
|
else {
|
|
r = fetch_token_in_cc(tok, &p, end, env);
|
|
if (r < 0) goto err;
|
|
}
|
|
}
|
|
|
|
if (state == CCS_VALUE) {
|
|
r = next_state_val(cc, &vs, 0, &val_israw, 0, val_type,
|
|
&val_type, &state, env);
|
|
if (r != 0) goto err;
|
|
}
|
|
|
|
if (IS_NOT_NULL(prev_cc)) {
|
|
r = and_cclass(prev_cc, cc, env->enc);
|
|
if (r != 0) goto err;
|
|
bbuf_free(cc->mbuf);
|
|
cc = prev_cc;
|
|
}
|
|
|
|
if (neg != 0)
|
|
NCCLASS_SET_NOT(cc);
|
|
else
|
|
NCCLASS_CLEAR_NOT(cc);
|
|
if (IS_NCCLASS_NOT(cc) &&
|
|
IS_SYNTAX_BV(env->syntax, ONIG_SYN_NOT_NEWLINE_IN_NEGATIVE_CC)) {
|
|
int is_empty = (IS_NULL(cc->mbuf) ? 1 : 0);
|
|
if (is_empty != 0)
|
|
BITSET_IS_EMPTY(cc->bs, is_empty);
|
|
|
|
if (is_empty == 0) {
|
|
#define NEWLINE_CODE 0x0a
|
|
|
|
if (ONIGENC_IS_CODE_NEWLINE(env->enc, NEWLINE_CODE)) {
|
|
if (ONIGENC_CODE_TO_MBCLEN(env->enc, NEWLINE_CODE) == 1)
|
|
BITSET_SET_BIT(cc->bs, NEWLINE_CODE);
|
|
else
|
|
add_code_range(&(cc->mbuf), env, NEWLINE_CODE, NEWLINE_CODE);
|
|
}
|
|
}
|
|
}
|
|
*src = p;
|
|
env->parse_depth--;
|
|
return 0;
|
|
|
|
err:
|
|
if (cc != CCLASS_(*np))
|
|
bbuf_free(cc->mbuf);
|
|
return r;
|
|
}
|
|
|
|
static int parse_subexp(Node** top, PToken* tok, int term,
|
|
UChar** src, UChar* end, ScanEnv* env, int group_head);
|
|
|
|
#ifdef USE_CALLOUT
|
|
|
|
/* (?{...}[tag][+-]) (?{{...}}[tag][+-]) */
|
|
static int
|
|
parse_callout_of_contents(Node** np, int cterm, UChar** src, UChar* end, ScanEnv* env)
|
|
{
|
|
int r;
|
|
int i;
|
|
int in;
|
|
int num;
|
|
OnigCodePoint c;
|
|
UChar* code_start;
|
|
UChar* code_end;
|
|
UChar* contents;
|
|
UChar* tag_start;
|
|
UChar* tag_end;
|
|
int brace_nest;
|
|
CalloutListEntry* e;
|
|
RegexExt* ext;
|
|
OnigEncoding enc = env->enc;
|
|
UChar* p = *src;
|
|
|
|
if (PEND) return ONIGERR_INVALID_CALLOUT_PATTERN;
|
|
|
|
brace_nest = 0;
|
|
while (PPEEK_IS('{')) {
|
|
brace_nest++;
|
|
PINC_S;
|
|
if (PEND) return ONIGERR_INVALID_CALLOUT_PATTERN;
|
|
}
|
|
|
|
in = ONIG_CALLOUT_IN_PROGRESS;
|
|
code_start = p;
|
|
while (1) {
|
|
if (PEND) return ONIGERR_INVALID_CALLOUT_PATTERN;
|
|
|
|
code_end = p;
|
|
PFETCH_S(c);
|
|
if (c == '}') {
|
|
i = brace_nest;
|
|
while (i > 0) {
|
|
if (PEND) return ONIGERR_INVALID_CALLOUT_PATTERN;
|
|
PFETCH_S(c);
|
|
if (c == '}') i--;
|
|
else break;
|
|
}
|
|
if (i == 0) break;
|
|
}
|
|
}
|
|
|
|
if (PEND) return ONIGERR_END_PATTERN_IN_GROUP;
|
|
|
|
PFETCH_S(c);
|
|
if (c == '[') {
|
|
if (PEND) return ONIGERR_END_PATTERN_IN_GROUP;
|
|
tag_end = tag_start = p;
|
|
while (! PEND) {
|
|
if (PEND) return ONIGERR_END_PATTERN_IN_GROUP;
|
|
tag_end = p;
|
|
PFETCH_S(c);
|
|
if (c == ']') break;
|
|
}
|
|
if (! is_allowed_callout_tag_name(enc, tag_start, tag_end))
|
|
return ONIGERR_INVALID_CALLOUT_TAG_NAME;
|
|
|
|
if (PEND) return ONIGERR_END_PATTERN_IN_GROUP;
|
|
PFETCH_S(c);
|
|
}
|
|
else {
|
|
tag_start = tag_end = 0;
|
|
}
|
|
|
|
if (c == 'X') {
|
|
in |= ONIG_CALLOUT_IN_RETRACTION;
|
|
if (PEND) return ONIGERR_END_PATTERN_IN_GROUP;
|
|
PFETCH_S(c);
|
|
}
|
|
else if (c == '<') {
|
|
in = ONIG_CALLOUT_IN_RETRACTION;
|
|
if (PEND) return ONIGERR_END_PATTERN_IN_GROUP;
|
|
PFETCH_S(c);
|
|
}
|
|
else if (c == '>') { /* no needs (default) */
|
|
if (PEND) return ONIGERR_END_PATTERN_IN_GROUP;
|
|
PFETCH_S(c);
|
|
}
|
|
|
|
if (c != cterm)
|
|
return ONIGERR_INVALID_CALLOUT_PATTERN;
|
|
|
|
r = reg_callout_list_entry(env, &num);
|
|
if (r != 0) return r;
|
|
|
|
ext = onig_get_regex_ext(env->reg);
|
|
CHECK_NULL_RETURN_MEMERR(ext);
|
|
if (IS_NULL(ext->pattern)) {
|
|
r = onig_ext_set_pattern(env->reg, env->pattern, env->pattern_end);
|
|
if (r != ONIG_NORMAL) return r;
|
|
}
|
|
|
|
if (tag_start != tag_end) {
|
|
r = callout_tag_entry(env, env->reg, tag_start, tag_end, num);
|
|
if (r != ONIG_NORMAL) return r;
|
|
}
|
|
|
|
contents = onigenc_strdup(enc, code_start, code_end);
|
|
CHECK_NULL_RETURN_MEMERR(contents);
|
|
|
|
r = node_new_callout(np, ONIG_CALLOUT_OF_CONTENTS, num, ONIG_NON_NAME_ID, env);
|
|
if (r != 0) {
|
|
xfree(contents);
|
|
return r;
|
|
}
|
|
|
|
e = onig_reg_callout_list_at(env->reg, num);
|
|
if (IS_NULL(e)) {
|
|
xfree(contents);
|
|
return ONIGERR_MEMORY;
|
|
}
|
|
|
|
e->of = ONIG_CALLOUT_OF_CONTENTS;
|
|
e->in = in;
|
|
e->name_id = ONIG_NON_NAME_ID;
|
|
e->u.content.start = contents;
|
|
e->u.content.end = contents + (code_end - code_start);
|
|
|
|
*src = p;
|
|
return 0;
|
|
}
|
|
|
|
static long
|
|
parse_long(OnigEncoding enc, UChar* s, UChar* end, int sign_on, long max, long* rl)
|
|
{
|
|
long v;
|
|
long d;
|
|
int flag;
|
|
UChar* p;
|
|
OnigCodePoint c;
|
|
|
|
if (s >= end) return ONIGERR_INVALID_CALLOUT_ARG;
|
|
|
|
flag = 1;
|
|
v = 0;
|
|
p = s;
|
|
while (p < end) {
|
|
c = ONIGENC_MBC_TO_CODE(enc, p, end);
|
|
p += ONIGENC_MBC_ENC_LEN(enc, p);
|
|
if (c >= '0' && c <= '9') {
|
|
d = (long )(c - '0');
|
|
if (v > (max - d) / 10)
|
|
return ONIGERR_INVALID_CALLOUT_ARG;
|
|
|
|
v = v * 10 + d;
|
|
}
|
|
else if (sign_on != 0 && (c == '-' || c == '+')) {
|
|
if (c == '-') flag = -1;
|
|
}
|
|
else
|
|
return ONIGERR_INVALID_CALLOUT_ARG;
|
|
|
|
sign_on = 0;
|
|
}
|
|
|
|
*rl = flag * v;
|
|
return ONIG_NORMAL;
|
|
}
|
|
|
|
static int
|
|
parse_callout_args(int skip_mode, int cterm, UChar** src, UChar* end,
|
|
unsigned int types[], OnigValue vals[], ScanEnv* env)
|
|
{
|
|
#define MAX_CALLOUT_ARG_BYTE_LENGTH 128
|
|
|
|
int r;
|
|
int n;
|
|
int esc;
|
|
int cn;
|
|
UChar* s;
|
|
UChar* e;
|
|
UChar* eesc;
|
|
OnigCodePoint c;
|
|
UChar* bufend;
|
|
UChar buf[MAX_CALLOUT_ARG_BYTE_LENGTH];
|
|
OnigEncoding enc = env->enc;
|
|
UChar* p = *src;
|
|
|
|
if (PEND) return ONIGERR_INVALID_CALLOUT_PATTERN;
|
|
|
|
n = 0;
|
|
while (n < ONIG_CALLOUT_MAX_ARGS_NUM) {
|
|
c = 0;
|
|
cn = 0;
|
|
esc = 0;
|
|
eesc = 0;
|
|
bufend = buf;
|
|
s = e = p;
|
|
while (1) {
|
|
if (PEND) return ONIGERR_INVALID_CALLOUT_PATTERN;
|
|
|
|
e = p;
|
|
PFETCH_S(c);
|
|
if (esc != 0) {
|
|
esc = 0;
|
|
if (c == '\\' || c == cterm || c == ',') {
|
|
/* */
|
|
}
|
|
else {
|
|
e = eesc;
|
|
cn++;
|
|
}
|
|
goto add_char;
|
|
}
|
|
else {
|
|
if (c == '\\') {
|
|
esc = 1;
|
|
eesc = e;
|
|
}
|
|
else if (c == cterm || c == ',')
|
|
break;
|
|
else {
|
|
size_t clen;
|
|
|
|
add_char:
|
|
if (skip_mode == 0) {
|
|
clen = p - e;
|
|
if (bufend + clen > buf + MAX_CALLOUT_ARG_BYTE_LENGTH)
|
|
return ONIGERR_INVALID_CALLOUT_ARG; /* too long argument */
|
|
|
|
xmemcpy(bufend, e, clen);
|
|
bufend += clen;
|
|
}
|
|
cn++;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (cn != 0) {
|
|
if (skip_mode == 0) {
|
|
if ((types[n] & ONIG_TYPE_LONG) != 0) {
|
|
int fixed = 0;
|
|
if (cn > 0) {
|
|
long rl;
|
|
r = parse_long(enc, buf, bufend, 1, LONG_MAX, &rl);
|
|
if (r == ONIG_NORMAL) {
|
|
vals[n].l = rl;
|
|
fixed = 1;
|
|
types[n] = ONIG_TYPE_LONG;
|
|
}
|
|
}
|
|
|
|
if (fixed == 0) {
|
|
types[n] = (types[n] & ~ONIG_TYPE_LONG);
|
|
if (types[n] == ONIG_TYPE_VOID)
|
|
return ONIGERR_INVALID_CALLOUT_ARG;
|
|
}
|
|
}
|
|
|
|
switch (types[n]) {
|
|
case ONIG_TYPE_LONG:
|
|
break;
|
|
|
|
case ONIG_TYPE_CHAR:
|
|
if (cn != 1) return ONIGERR_INVALID_CALLOUT_ARG;
|
|
vals[n].c = ONIGENC_MBC_TO_CODE(enc, buf, bufend);
|
|
break;
|
|
|
|
case ONIG_TYPE_STRING:
|
|
{
|
|
UChar* rs = onigenc_strdup(enc, buf, bufend);
|
|
CHECK_NULL_RETURN_MEMERR(rs);
|
|
vals[n].s.start = rs;
|
|
vals[n].s.end = rs + (e - s);
|
|
}
|
|
break;
|
|
|
|
case ONIG_TYPE_TAG:
|
|
if (eesc != 0 || ! is_allowed_callout_tag_name(enc, s, e))
|
|
return ONIGERR_INVALID_CALLOUT_TAG_NAME;
|
|
|
|
vals[n].s.start = s;
|
|
vals[n].s.end = e;
|
|
break;
|
|
|
|
case ONIG_TYPE_VOID:
|
|
case ONIG_TYPE_POINTER:
|
|
return ONIGERR_PARSER_BUG;
|
|
break;
|
|
}
|
|
}
|
|
|
|
n++;
|
|
}
|
|
|
|
if (c == cterm) break;
|
|
}
|
|
|
|
if (c != cterm) return ONIGERR_INVALID_CALLOUT_PATTERN;
|
|
|
|
*src = p;
|
|
return n;
|
|
}
|
|
|
|
/* (*name[TAG]) (*name[TAG]{a,b,..}) */
|
|
static int
|
|
parse_callout_of_name(Node** np, int cterm, UChar** src, UChar* end, ScanEnv* env)
|
|
{
|
|
int r;
|
|
int i;
|
|
int in;
|
|
int num;
|
|
int name_id;
|
|
int arg_num;
|
|
int max_arg_num;
|
|
int opt_arg_num;
|
|
int is_not_single;
|
|
OnigCodePoint c;
|
|
UChar* name_start;
|
|
UChar* name_end;
|
|
UChar* tag_start;
|
|
UChar* tag_end;
|
|
Node* node;
|
|
CalloutListEntry* e;
|
|
RegexExt* ext;
|
|
unsigned int types[ONIG_CALLOUT_MAX_ARGS_NUM];
|
|
OnigValue vals[ONIG_CALLOUT_MAX_ARGS_NUM];
|
|
OnigEncoding enc = env->enc;
|
|
UChar* p = *src;
|
|
|
|
/* PFETCH_READY; */
|
|
if (PEND) return ONIGERR_INVALID_CALLOUT_PATTERN;
|
|
|
|
node = 0;
|
|
name_start = p;
|
|
while (1) {
|
|
if (PEND) return ONIGERR_END_PATTERN_IN_GROUP;
|
|
name_end = p;
|
|
PFETCH_S(c);
|
|
if (c == cterm || c == '[' || c == '{') break;
|
|
}
|
|
|
|
if (! is_allowed_callout_name(enc, name_start, name_end))
|
|
return ONIGERR_INVALID_CALLOUT_NAME;
|
|
|
|
if (c == '[') {
|
|
if (PEND) return ONIGERR_END_PATTERN_IN_GROUP;
|
|
tag_end = tag_start = p;
|
|
while (! PEND) {
|
|
if (PEND) return ONIGERR_END_PATTERN_IN_GROUP;
|
|
tag_end = p;
|
|
PFETCH_S(c);
|
|
if (c == ']') break;
|
|
}
|
|
if (! is_allowed_callout_tag_name(enc, tag_start, tag_end))
|
|
return ONIGERR_INVALID_CALLOUT_TAG_NAME;
|
|
|
|
if (PEND) return ONIGERR_END_PATTERN_IN_GROUP;
|
|
PFETCH_S(c);
|
|
}
|
|
else {
|
|
tag_start = tag_end = 0;
|
|
}
|
|
|
|
if (c == '{') {
|
|
UChar* save;
|
|
|
|
if (PEND) return ONIGERR_END_PATTERN_IN_GROUP;
|
|
|
|
/* read for single check only */
|
|
save = p;
|
|
arg_num = parse_callout_args(1, '}', &p, end, 0, 0, env);
|
|
if (arg_num < 0) return arg_num;
|
|
|
|
is_not_single = PPEEK_IS(cterm) ? 0 : 1;
|
|
p = save;
|
|
r = get_callout_name_id_by_name(enc, is_not_single, name_start, name_end,
|
|
&name_id);
|
|
if (r != ONIG_NORMAL) return r;
|
|
|
|
max_arg_num = get_callout_arg_num_by_name_id(name_id);
|
|
for (i = 0; i < max_arg_num; i++) {
|
|
types[i] = get_callout_arg_type_by_name_id(name_id, i);
|
|
}
|
|
|
|
arg_num = parse_callout_args(0, '}', &p, end, types, vals, env);
|
|
if (arg_num < 0) return arg_num;
|
|
|
|
if (PEND) return ONIGERR_END_PATTERN_IN_GROUP;
|
|
PFETCH_S(c);
|
|
}
|
|
else {
|
|
arg_num = 0;
|
|
|
|
is_not_single = 0;
|
|
r = get_callout_name_id_by_name(enc, is_not_single, name_start, name_end,
|
|
&name_id);
|
|
if (r != ONIG_NORMAL) return r;
|
|
|
|
max_arg_num = get_callout_arg_num_by_name_id(name_id);
|
|
for (i = 0; i < max_arg_num; i++) {
|
|
types[i] = get_callout_arg_type_by_name_id(name_id, i);
|
|
}
|
|
}
|
|
|
|
in = onig_get_callout_in_by_name_id(name_id);
|
|
opt_arg_num = get_callout_opt_arg_num_by_name_id(name_id);
|
|
if (arg_num > max_arg_num || arg_num < (max_arg_num - opt_arg_num))
|
|
return ONIGERR_INVALID_CALLOUT_ARG;
|
|
|
|
if (c != cterm)
|
|
return ONIGERR_INVALID_CALLOUT_PATTERN;
|
|
|
|
r = reg_callout_list_entry(env, &num);
|
|
if (r != 0) return r;
|
|
|
|
ext = onig_get_regex_ext(env->reg);
|
|
CHECK_NULL_RETURN_MEMERR(ext);
|
|
if (IS_NULL(ext->pattern)) {
|
|
r = onig_ext_set_pattern(env->reg, env->pattern, env->pattern_end);
|
|
if (r != ONIG_NORMAL) return r;
|
|
}
|
|
|
|
if (tag_start != tag_end) {
|
|
r = callout_tag_entry(env, env->reg, tag_start, tag_end, num);
|
|
if (r != ONIG_NORMAL) return r;
|
|
}
|
|
|
|
r = node_new_callout(&node, ONIG_CALLOUT_OF_NAME, num, name_id, env);
|
|
if (r != ONIG_NORMAL) return r;
|
|
|
|
e = onig_reg_callout_list_at(env->reg, num);
|
|
CHECK_NULL_RETURN_MEMERR(e);
|
|
|
|
e->of = ONIG_CALLOUT_OF_NAME;
|
|
e->in = in;
|
|
e->name_id = name_id;
|
|
e->type = onig_get_callout_type_by_name_id(name_id);
|
|
e->start_func = onig_get_callout_start_func_by_name_id(name_id);
|
|
e->end_func = onig_get_callout_end_func_by_name_id(name_id);
|
|
e->u.arg.num = max_arg_num;
|
|
e->u.arg.passed_num = arg_num;
|
|
for (i = 0; i < max_arg_num; i++) {
|
|
e->u.arg.types[i] = types[i];
|
|
if (i < arg_num)
|
|
e->u.arg.vals[i] = vals[i];
|
|
else
|
|
e->u.arg.vals[i] = get_callout_opt_default_by_name_id(name_id, i);
|
|
}
|
|
|
|
*np = node;
|
|
*src = p;
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
|
static int
|
|
parse_bag(Node** np, PToken* tok, int term, UChar** src, UChar* end,
|
|
ScanEnv* env)
|
|
{
|
|
int r, num;
|
|
Node *target;
|
|
OnigOptionType option;
|
|
OnigCodePoint c;
|
|
int list_capture;
|
|
OnigEncoding enc = env->enc;
|
|
|
|
UChar* p = *src;
|
|
PFETCH_READY;
|
|
|
|
*np = NULL;
|
|
if (PEND) return ONIGERR_END_PATTERN_WITH_UNMATCHED_PARENTHESIS;
|
|
|
|
option = env->options;
|
|
c = PPEEK;
|
|
if (c == '?' && IS_SYNTAX_OP2(env->syntax, ONIG_SYN_OP2_QMARK_GROUP_EFFECT)) {
|
|
PINC;
|
|
if (PEND) return ONIGERR_END_PATTERN_IN_GROUP;
|
|
|
|
PFETCH(c);
|
|
switch (c) {
|
|
case ':': /* (?:...) grouping only */
|
|
group:
|
|
r = fetch_token(tok, &p, end, env);
|
|
if (r < 0) return r;
|
|
r = parse_subexp(np, tok, term, &p, end, env, 0);
|
|
if (r < 0) return r;
|
|
*src = p;
|
|
return 1; /* group */
|
|
break;
|
|
|
|
case '=':
|
|
*np = onig_node_new_anchor(ANCR_PREC_READ, 0);
|
|
break;
|
|
case '!': /* preceding read */
|
|
*np = onig_node_new_anchor(ANCR_PREC_READ_NOT, 0);
|
|
break;
|
|
case '>': /* (?>...) stop backtrack */
|
|
*np = node_new_bag(BAG_STOP_BACKTRACK);
|
|
break;
|
|
|
|
case '\'':
|
|
if (IS_SYNTAX_OP2(env->syntax, ONIG_SYN_OP2_QMARK_LT_NAMED_GROUP)) {
|
|
goto named_group1;
|
|
}
|
|
else
|
|
return ONIGERR_UNDEFINED_GROUP_OPTION;
|
|
break;
|
|
|
|
case '<': /* look behind (?<=...), (?<!...) */
|
|
if (PEND) return ONIGERR_END_PATTERN_WITH_UNMATCHED_PARENTHESIS;
|
|
PFETCH(c);
|
|
if (c == '=')
|
|
*np = onig_node_new_anchor(ANCR_LOOK_BEHIND, 0);
|
|
else if (c == '!')
|
|
*np = onig_node_new_anchor(ANCR_LOOK_BEHIND_NOT, 0);
|
|
else {
|
|
if (IS_SYNTAX_OP2(env->syntax, ONIG_SYN_OP2_QMARK_LT_NAMED_GROUP)) {
|
|
UChar *name;
|
|
UChar *name_end;
|
|
enum REF_NUM num_type;
|
|
|
|
PUNFETCH;
|
|
c = '<';
|
|
|
|
named_group1:
|
|
list_capture = 0;
|
|
|
|
named_group2:
|
|
name = p;
|
|
r = fetch_name((OnigCodePoint )c, &p, end, &name_end, env, &num,
|
|
&num_type, 0);
|
|
if (r < 0) return r;
|
|
|
|
num = scan_env_add_mem_entry(env);
|
|
if (num < 0) return num;
|
|
if (list_capture != 0 && num >= (int )MEM_STATUS_BITS_NUM)
|
|
return ONIGERR_GROUP_NUMBER_OVER_FOR_CAPTURE_HISTORY;
|
|
|
|
r = name_add(env->reg, name, name_end, num, env);
|
|
if (r != 0) return r;
|
|
*np = node_new_memory(1);
|
|
CHECK_NULL_RETURN_MEMERR(*np);
|
|
BAG_(*np)->m.regnum = num;
|
|
if (list_capture != 0)
|
|
MEM_STATUS_ON_SIMPLE(env->capture_history, num);
|
|
env->num_named++;
|
|
}
|
|
else {
|
|
return ONIGERR_UNDEFINED_GROUP_OPTION;
|
|
}
|
|
}
|
|
break;
|
|
|
|
case '~':
|
|
if (IS_SYNTAX_OP2(env->syntax, ONIG_SYN_OP2_QMARK_TILDE_ABSENT_GROUP)) {
|
|
Node* absent;
|
|
Node* expr;
|
|
int head_bar;
|
|
int is_range_cutter;
|
|
|
|
if (PEND) return ONIGERR_END_PATTERN_IN_GROUP;
|
|
|
|
if (PPEEK_IS('|')) { /* (?~|generator|absent) */
|
|
PINC;
|
|
if (PEND) return ONIGERR_END_PATTERN_IN_GROUP;
|
|
|
|
head_bar = 1;
|
|
if (PPEEK_IS(')')) { /* (?~|) : range clear */
|
|
PINC;
|
|
r = make_range_clear(np, env);
|
|
if (r != 0) return r;
|
|
goto end;
|
|
}
|
|
}
|
|
else
|
|
head_bar = 0;
|
|
|
|
r = fetch_token(tok, &p, end, env);
|
|
if (r < 0) return r;
|
|
r = parse_subexp(&absent, tok, term, &p, end, env, 1);
|
|
if (r < 0) {
|
|
onig_node_free(absent);
|
|
return r;
|
|
}
|
|
|
|
expr = NULL_NODE;
|
|
is_range_cutter = 0;
|
|
if (head_bar != 0) {
|
|
Node* top = absent;
|
|
if (NODE_TYPE(top) != NODE_ALT || IS_NULL(NODE_CDR(top))) {
|
|
expr = NULL_NODE;
|
|
is_range_cutter = 1;
|
|
/* return ONIGERR_INVALID_ABSENT_GROUP_GENERATOR_PATTERN; */
|
|
}
|
|
else {
|
|
absent = NODE_CAR(top);
|
|
expr = NODE_CDR(top);
|
|
NODE_CAR(top) = NULL_NODE;
|
|
NODE_CDR(top) = NULL_NODE;
|
|
onig_node_free(top);
|
|
if (IS_NULL(NODE_CDR(expr))) {
|
|
top = expr;
|
|
expr = NODE_CAR(top);
|
|
NODE_CAR(top) = NULL_NODE;
|
|
onig_node_free(top);
|
|
}
|
|
}
|
|
}
|
|
|
|
r = make_absent_tree(np, absent, expr, is_range_cutter, env);
|
|
if (r != 0) {
|
|
return r;
|
|
}
|
|
goto end;
|
|
}
|
|
else {
|
|
return ONIGERR_UNDEFINED_GROUP_OPTION;
|
|
}
|
|
break;
|
|
|
|
#ifdef USE_CALLOUT
|
|
case '{':
|
|
if (! IS_SYNTAX_OP2(env->syntax, ONIG_SYN_OP2_QMARK_BRACE_CALLOUT_CONTENTS))
|
|
return ONIGERR_UNDEFINED_GROUP_OPTION;
|
|
|
|
r = parse_callout_of_contents(np, ')', &p, end, env);
|
|
if (r != 0) return r;
|
|
|
|
goto end;
|
|
break;
|
|
#endif
|
|
|
|
case '(':
|
|
/* (?()...) */
|
|
if (IS_SYNTAX_OP2(env->syntax, ONIG_SYN_OP2_QMARK_LPAREN_IF_ELSE)) {
|
|
UChar *prev;
|
|
Node* condition;
|
|
int condition_is_checker;
|
|
|
|
if (PEND) return ONIGERR_END_PATTERN_IN_GROUP;
|
|
PFETCH(c);
|
|
if (PEND) return ONIGERR_END_PATTERN_IN_GROUP;
|
|
|
|
if (IS_CODE_DIGIT_ASCII(enc, c)
|
|
|| c == '-' || c == '+' || c == '<' || c == '\'') {
|
|
UChar* name_end;
|
|
int back_num;
|
|
int exist_level;
|
|
int level;
|
|
enum REF_NUM num_type;
|
|
int is_enclosed;
|
|
|
|
is_enclosed = (c == '<' || c == '\'') ? 1 : 0;
|
|
if (! is_enclosed)
|
|
PUNFETCH;
|
|
prev = p;
|
|
exist_level = 0;
|
|
#ifdef USE_BACKREF_WITH_LEVEL
|
|
name_end = NULL_UCHARP; /* no need. escape gcc warning. */
|
|
r = fetch_name_with_level(
|
|
(OnigCodePoint )(is_enclosed != 0 ? c : '('),
|
|
&p, end, &name_end,
|
|
env, &back_num, &level, &num_type);
|
|
if (r == 1) exist_level = 1;
|
|
#else
|
|
r = fetch_name((OnigCodePoint )(is_enclosed != 0 ? c : '('),
|
|
&p, end, &name_end, env, &back_num, &num_type, 1);
|
|
#endif
|
|
if (r < 0) {
|
|
if (is_enclosed == 0) {
|
|
goto any_condition;
|
|
}
|
|
else
|
|
return r;
|
|
}
|
|
|
|
condition_is_checker = 1;
|
|
if (num_type != IS_NOT_NUM) {
|
|
if (num_type == IS_REL_NUM) {
|
|
back_num = backref_rel_to_abs(back_num, env);
|
|
}
|
|
if (back_num <= 0)
|
|
return ONIGERR_INVALID_BACKREF;
|
|
|
|
if (IS_SYNTAX_BV(env->syntax, ONIG_SYN_STRICT_CHECK_BACKREF)) {
|
|
if (back_num > env->num_mem ||
|
|
IS_NULL(SCANENV_MEMENV(env)[back_num].node))
|
|
return ONIGERR_INVALID_BACKREF;
|
|
}
|
|
|
|
condition = node_new_backref_checker(1, &back_num, 0,
|
|
#ifdef USE_BACKREF_WITH_LEVEL
|
|
exist_level, level,
|
|
#endif
|
|
env);
|
|
}
|
|
else {
|
|
int num;
|
|
int* backs;
|
|
|
|
num = name_to_group_numbers(env, prev, name_end, &backs);
|
|
if (num <= 0) {
|
|
return ONIGERR_UNDEFINED_NAME_REFERENCE;
|
|
}
|
|
if (IS_SYNTAX_BV(env->syntax, ONIG_SYN_STRICT_CHECK_BACKREF)) {
|
|
int i;
|
|
for (i = 0; i < num; i++) {
|
|
if (backs[i] > env->num_mem ||
|
|
IS_NULL(SCANENV_MEMENV(env)[backs[i]].node))
|
|
return ONIGERR_INVALID_BACKREF;
|
|
}
|
|
}
|
|
|
|
condition = node_new_backref_checker(num, backs, 1,
|
|
#ifdef USE_BACKREF_WITH_LEVEL
|
|
exist_level, level,
|
|
#endif
|
|
env);
|
|
}
|
|
|
|
if (is_enclosed != 0) {
|
|
if (PEND) goto err_if_else;
|
|
PFETCH(c);
|
|
if (c != ')') goto err_if_else;
|
|
}
|
|
}
|
|
#ifdef USE_CALLOUT
|
|
else if (c == '?') {
|
|
if (IS_SYNTAX_OP2(env->syntax,
|
|
ONIG_SYN_OP2_QMARK_BRACE_CALLOUT_CONTENTS)) {
|
|
if (! PEND && PPEEK_IS('{')) {
|
|
/* condition part is callouts of contents: (?(?{...})THEN|ELSE) */
|
|
condition_is_checker = 0;
|
|
PFETCH(c);
|
|
r = parse_callout_of_contents(&condition, ')', &p, end, env);
|
|
if (r != 0) return r;
|
|
goto end_condition;
|
|
}
|
|
}
|
|
goto any_condition;
|
|
}
|
|
else if (c == '*' &&
|
|
IS_SYNTAX_OP2(env->syntax, ONIG_SYN_OP2_ASTERISK_CALLOUT_NAME)) {
|
|
condition_is_checker = 0;
|
|
r = parse_callout_of_name(&condition, ')', &p, end, env);
|
|
if (r != 0) return r;
|
|
goto end_condition;
|
|
}
|
|
#endif
|
|
else {
|
|
any_condition:
|
|
PUNFETCH;
|
|
condition_is_checker = 0;
|
|
r = fetch_token(tok, &p, end, env);
|
|
if (r < 0) return r;
|
|
r = parse_subexp(&condition, tok, term, &p, end, env, 0);
|
|
if (r < 0) {
|
|
onig_node_free(condition);
|
|
return r;
|
|
}
|
|
}
|
|
|
|
#ifdef USE_CALLOUT
|
|
end_condition:
|
|
#endif
|
|
CHECK_NULL_RETURN_MEMERR(condition);
|
|
|
|
if (PEND) {
|
|
err_if_else:
|
|
onig_node_free(condition);
|
|
return ONIGERR_END_PATTERN_IN_GROUP;
|
|
}
|
|
|
|
if (PPEEK_IS(')')) { /* case: empty body: make backref checker */
|
|
if (condition_is_checker == 0) {
|
|
onig_node_free(condition);
|
|
return ONIGERR_INVALID_IF_ELSE_SYNTAX;
|
|
}
|
|
PFETCH(c);
|
|
*np = condition;
|
|
}
|
|
else { /* if-else */
|
|
int then_is_empty;
|
|
Node *Then, *Else;
|
|
|
|
Then = 0;
|
|
if (PPEEK_IS('|')) {
|
|
PFETCH(c);
|
|
then_is_empty = 1;
|
|
}
|
|
else
|
|
then_is_empty = 0;
|
|
|
|
r = fetch_token(tok, &p, end, env);
|
|
if (r < 0) {
|
|
onig_node_free(condition);
|
|
return r;
|
|
}
|
|
r = parse_subexp(&target, tok, term, &p, end, env, 1);
|
|
if (r < 0) {
|
|
onig_node_free(condition);
|
|
onig_node_free(target);
|
|
return r;
|
|
}
|
|
|
|
if (then_is_empty != 0) {
|
|
Else = target;
|
|
}
|
|
else {
|
|
if (NODE_TYPE(target) == NODE_ALT) {
|
|
Then = NODE_CAR(target);
|
|
if (NODE_CDR(NODE_CDR(target)) == NULL_NODE) {
|
|
Else = NODE_CAR(NODE_CDR(target));
|
|
cons_node_free_alone(NODE_CDR(target));
|
|
}
|
|
else {
|
|
Else = NODE_CDR(target);
|
|
}
|
|
cons_node_free_alone(target);
|
|
}
|
|
else {
|
|
Then = target;
|
|
Else = 0;
|
|
}
|
|
}
|
|
|
|
*np = node_new_bag_if_else(condition, Then, Else);
|
|
if (IS_NULL(*np)) {
|
|
onig_node_free(condition);
|
|
onig_node_free(Then);
|
|
onig_node_free(Else);
|
|
return ONIGERR_MEMORY;
|
|
}
|
|
}
|
|
goto end;
|
|
}
|
|
else {
|
|
return ONIGERR_UNDEFINED_GROUP_OPTION;
|
|
}
|
|
break;
|
|
|
|
#ifdef USE_CAPTURE_HISTORY
|
|
case '@':
|
|
if (IS_SYNTAX_OP2(env->syntax, ONIG_SYN_OP2_ATMARK_CAPTURE_HISTORY)) {
|
|
if (IS_SYNTAX_OP2(env->syntax, ONIG_SYN_OP2_QMARK_LT_NAMED_GROUP)) {
|
|
PFETCH(c);
|
|
if (c == '<' || c == '\'') {
|
|
list_capture = 1;
|
|
goto named_group2; /* (?@<name>...) */
|
|
}
|
|
PUNFETCH;
|
|
}
|
|
|
|
*np = node_new_memory(0);
|
|
CHECK_NULL_RETURN_MEMERR(*np);
|
|
num = scan_env_add_mem_entry(env);
|
|
if (num < 0) {
|
|
return num;
|
|
}
|
|
else if (num >= (int )MEM_STATUS_BITS_NUM) {
|
|
return ONIGERR_GROUP_NUMBER_OVER_FOR_CAPTURE_HISTORY;
|
|
}
|
|
BAG_(*np)->m.regnum = num;
|
|
MEM_STATUS_ON_SIMPLE(env->capture_history, num);
|
|
}
|
|
else {
|
|
return ONIGERR_UNDEFINED_GROUP_OPTION;
|
|
}
|
|
break;
|
|
#endif
|
|
|
|
#ifdef USE_POSIXLINE_OPTION
|
|
case 'p':
|
|
#endif
|
|
case '-': case 'i': case 'm': case 's': case 'x':
|
|
case 'W': case 'D': case 'S': case 'P':
|
|
case 'y':
|
|
{
|
|
int neg = 0;
|
|
|
|
while (1) {
|
|
switch (c) {
|
|
case ':':
|
|
case ')':
|
|
break;
|
|
|
|
case '-': neg = 1; break;
|
|
case 'x': OPTION_NEGATE(option, ONIG_OPTION_EXTEND, neg); break;
|
|
case 'i': OPTION_NEGATE(option, ONIG_OPTION_IGNORECASE, neg); break;
|
|
case 's':
|
|
if (IS_SYNTAX_OP2(env->syntax, ONIG_SYN_OP2_OPTION_PERL)) {
|
|
OPTION_NEGATE(option, ONIG_OPTION_MULTILINE, neg);
|
|
}
|
|
else
|
|
return ONIGERR_UNDEFINED_GROUP_OPTION;
|
|
break;
|
|
|
|
case 'm':
|
|
if (IS_SYNTAX_OP2(env->syntax, ONIG_SYN_OP2_OPTION_PERL)) {
|
|
OPTION_NEGATE(option, ONIG_OPTION_SINGLELINE, (neg == 0 ? 1 : 0));
|
|
}
|
|
else if (IS_SYNTAX_OP2(env->syntax,
|
|
ONIG_SYN_OP2_OPTION_ONIGURUMA|ONIG_SYN_OP2_OPTION_RUBY)) {
|
|
OPTION_NEGATE(option, ONIG_OPTION_MULTILINE, neg);
|
|
}
|
|
else
|
|
return ONIGERR_UNDEFINED_GROUP_OPTION;
|
|
break;
|
|
#ifdef USE_POSIXLINE_OPTION
|
|
case 'p':
|
|
OPTION_NEGATE(option, ONIG_OPTION_MULTILINE|ONIG_OPTION_SINGLELINE, neg);
|
|
break;
|
|
#endif
|
|
case 'W': OPTION_NEGATE(option, ONIG_OPTION_WORD_IS_ASCII, neg); break;
|
|
case 'D': OPTION_NEGATE(option, ONIG_OPTION_DIGIT_IS_ASCII, neg); break;
|
|
case 'S': OPTION_NEGATE(option, ONIG_OPTION_SPACE_IS_ASCII, neg); break;
|
|
case 'P': OPTION_NEGATE(option, ONIG_OPTION_POSIX_IS_ASCII, neg); break;
|
|
|
|
case 'y': /* y{g}, y{w} */
|
|
{
|
|
if (! IS_SYNTAX_OP2(env->syntax, ONIG_SYN_OP2_OPTION_ONIGURUMA))
|
|
return ONIGERR_UNDEFINED_GROUP_OPTION;
|
|
|
|
if (neg != 0) return ONIGERR_UNDEFINED_GROUP_OPTION;
|
|
|
|
if (PEND) return ONIGERR_END_PATTERN_IN_GROUP;
|
|
if (! PPEEK_IS('{')) return ONIGERR_UNDEFINED_GROUP_OPTION;
|
|
PFETCH(c);
|
|
if (PEND) return ONIGERR_END_PATTERN_IN_GROUP;
|
|
PFETCH(c);
|
|
switch (c) {
|
|
case 'g':
|
|
if (! ONIGENC_IS_UNICODE_ENCODING(enc))
|
|
return ONIGERR_UNDEFINED_GROUP_OPTION;
|
|
|
|
OPTION_NEGATE(option, ONIG_OPTION_TEXT_SEGMENT_EXTENDED_GRAPHEME_CLUSTER, 0);
|
|
OPTION_NEGATE(option, ONIG_OPTION_TEXT_SEGMENT_WORD, 1);
|
|
break;
|
|
#ifdef USE_UNICODE_WORD_BREAK
|
|
case 'w':
|
|
if (! ONIGENC_IS_UNICODE_ENCODING(enc))
|
|
return ONIGERR_UNDEFINED_GROUP_OPTION;
|
|
|
|
OPTION_NEGATE(option, ONIG_OPTION_TEXT_SEGMENT_WORD, 0);
|
|
OPTION_NEGATE(option, ONIG_OPTION_TEXT_SEGMENT_EXTENDED_GRAPHEME_CLUSTER, 1);
|
|
break;
|
|
#endif
|
|
default:
|
|
return ONIGERR_UNDEFINED_GROUP_OPTION;
|
|
break;
|
|
}
|
|
if (PEND) return ONIGERR_END_PATTERN_IN_GROUP;
|
|
PFETCH(c);
|
|
if (c != '}')
|
|
return ONIGERR_UNDEFINED_GROUP_OPTION;
|
|
break;
|
|
} /* case 'y' */
|
|
|
|
default:
|
|
return ONIGERR_UNDEFINED_GROUP_OPTION;
|
|
}
|
|
|
|
if (c == ')') {
|
|
*np = node_new_option(option);
|
|
CHECK_NULL_RETURN_MEMERR(*np);
|
|
*src = p;
|
|
return 2; /* option only */
|
|
}
|
|
else if (c == ':') {
|
|
OnigOptionType prev = env->options;
|
|
|
|
env->options = option;
|
|
r = fetch_token(tok, &p, end, env);
|
|
if (r < 0) return r;
|
|
r = parse_subexp(&target, tok, term, &p, end, env, 0);
|
|
env->options = prev;
|
|
if (r < 0) {
|
|
onig_node_free(target);
|
|
return r;
|
|
}
|
|
*np = node_new_option(option);
|
|
CHECK_NULL_RETURN_MEMERR(*np);
|
|
NODE_BODY(*np) = target;
|
|
*src = p;
|
|
return 0;
|
|
}
|
|
|
|
if (PEND) return ONIGERR_END_PATTERN_IN_GROUP;
|
|
PFETCH(c);
|
|
} /* while (1) */
|
|
}
|
|
break;
|
|
|
|
default:
|
|
return ONIGERR_UNDEFINED_GROUP_OPTION;
|
|
}
|
|
}
|
|
#ifdef USE_CALLOUT
|
|
else if (c == '*' &&
|
|
IS_SYNTAX_OP2(env->syntax, ONIG_SYN_OP2_ASTERISK_CALLOUT_NAME)) {
|
|
PINC;
|
|
r = parse_callout_of_name(np, ')', &p, end, env);
|
|
if (r != 0) return r;
|
|
|
|
goto end;
|
|
}
|
|
#endif
|
|
else {
|
|
if (ONIG_IS_OPTION_ON(env->options, ONIG_OPTION_DONT_CAPTURE_GROUP))
|
|
goto group;
|
|
|
|
*np = node_new_memory(0);
|
|
CHECK_NULL_RETURN_MEMERR(*np);
|
|
num = scan_env_add_mem_entry(env);
|
|
if (num < 0) return num;
|
|
BAG_(*np)->m.regnum = num;
|
|
}
|
|
|
|
CHECK_NULL_RETURN_MEMERR(*np);
|
|
r = fetch_token(tok, &p, end, env);
|
|
if (r < 0) return r;
|
|
r = parse_subexp(&target, tok, term, &p, end, env, 0);
|
|
if (r < 0) {
|
|
onig_node_free(target);
|
|
return r;
|
|
}
|
|
|
|
NODE_BODY(*np) = target;
|
|
|
|
if (NODE_TYPE(*np) == NODE_BAG) {
|
|
if (BAG_(*np)->type == BAG_MEMORY) {
|
|
/* Don't move this to previous of parse_subexp() */
|
|
r = scan_env_set_mem_node(env, BAG_(*np)->m.regnum, *np);
|
|
if (r != 0) return r;
|
|
}
|
|
}
|
|
|
|
end:
|
|
*src = p;
|
|
return 0;
|
|
}
|
|
|
|
static const char* PopularQStr[] = {
|
|
"?", "*", "+", "??", "*?", "+?"
|
|
};
|
|
|
|
static const char* ReduceQStr[] = {
|
|
"", "", "*", "*?", "??", "+ and ??", "+? and ?"
|
|
};
|
|
|
|
static int
|
|
set_quantifier(Node* qnode, Node* target, int group, ScanEnv* env)
|
|
{
|
|
QuantNode* qn;
|
|
|
|
qn = QUANT_(qnode);
|
|
if (qn->lower == 1 && qn->upper == 1)
|
|
return 1;
|
|
|
|
switch (NODE_TYPE(target)) {
|
|
case NODE_STRING:
|
|
if (group == 0) {
|
|
if (str_node_can_be_split(target, env->enc)) {
|
|
Node* n = str_node_split_last_char(target, env->enc);
|
|
if (IS_NOT_NULL(n)) {
|
|
NODE_BODY(qnode) = n;
|
|
return 2;
|
|
}
|
|
}
|
|
}
|
|
break;
|
|
|
|
case NODE_QUANT:
|
|
{ /* check redundant double repeat. */
|
|
/* verbose warn (?:.?)? etc... but not warn (.?)? etc... */
|
|
QuantNode* qnt = QUANT_(target);
|
|
int nestq_num = quantifier_type_num(qn);
|
|
int targetq_num = quantifier_type_num(qnt);
|
|
|
|
#ifdef USE_WARNING_REDUNDANT_NESTED_REPEAT_OPERATOR
|
|
if (targetq_num >= 0 && nestq_num >= 0 &&
|
|
IS_SYNTAX_BV(env->syntax, ONIG_SYN_WARN_REDUNDANT_NESTED_REPEAT)) {
|
|
UChar buf[WARN_BUFSIZE];
|
|
|
|
switch(ReduceTypeTable[targetq_num][nestq_num]) {
|
|
case RQ_ASIS:
|
|
break;
|
|
|
|
case RQ_DEL:
|
|
if (onig_verb_warn != onig_null_warn) {
|
|
onig_snprintf_with_pattern(buf, WARN_BUFSIZE, env->enc,
|
|
env->pattern, env->pattern_end,
|
|
(UChar* )"redundant nested repeat operator");
|
|
(*onig_verb_warn)((char* )buf);
|
|
}
|
|
goto warn_exit;
|
|
break;
|
|
|
|
default:
|
|
if (onig_verb_warn != onig_null_warn) {
|
|
onig_snprintf_with_pattern(buf, WARN_BUFSIZE, env->enc,
|
|
env->pattern, env->pattern_end,
|
|
(UChar* )"nested repeat operator %s and %s was replaced with '%s'",
|
|
PopularQStr[targetq_num], PopularQStr[nestq_num],
|
|
ReduceQStr[ReduceTypeTable[targetq_num][nestq_num]]);
|
|
(*onig_verb_warn)((char* )buf);
|
|
}
|
|
goto warn_exit;
|
|
break;
|
|
}
|
|
}
|
|
|
|
warn_exit:
|
|
#endif
|
|
if (targetq_num >= 0 && nestq_num < 0) {
|
|
if (targetq_num == 1 || targetq_num == 2) { /* * or + */
|
|
/* (?:a*){n,m}, (?:a+){n,m} => (?:a*){n,n}, (?:a+){n,n} */
|
|
if (! IS_INFINITE_REPEAT(qn->upper) && qn->upper > 1 && qn->greedy) {
|
|
qn->upper = (qn->lower == 0 ? 1 : qn->lower);
|
|
}
|
|
}
|
|
}
|
|
else {
|
|
NODE_BODY(qnode) = target;
|
|
onig_reduce_nested_quantifier(qnode, target);
|
|
goto q_exit;
|
|
}
|
|
}
|
|
break;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
|
|
NODE_BODY(qnode) = target;
|
|
q_exit:
|
|
return 0;
|
|
}
|
|
|
|
|
|
#ifndef CASE_FOLD_IS_APPLIED_INSIDE_NEGATIVE_CCLASS
|
|
static int
|
|
clear_not_flag_cclass(CClassNode* cc, OnigEncoding enc)
|
|
{
|
|
BBuf *tbuf;
|
|
int r;
|
|
|
|
if (IS_NCCLASS_NOT(cc)) {
|
|
bitset_invert(cc->bs);
|
|
|
|
if (! ONIGENC_IS_SINGLEBYTE(enc)) {
|
|
r = not_code_range_buf(enc, cc->mbuf, &tbuf);
|
|
if (r != 0) return r;
|
|
|
|
bbuf_free(cc->mbuf);
|
|
cc->mbuf = tbuf;
|
|
}
|
|
|
|
NCCLASS_CLEAR_NOT(cc);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
#endif /* CASE_FOLD_IS_APPLIED_INSIDE_NEGATIVE_CCLASS */
|
|
|
|
typedef struct {
|
|
ScanEnv* env;
|
|
CClassNode* cc;
|
|
Node* alt_root;
|
|
Node** ptail;
|
|
} IApplyCaseFoldArg;
|
|
|
|
static int
|
|
i_apply_case_fold(OnigCodePoint from, OnigCodePoint to[], int to_len, void* arg)
|
|
{
|
|
IApplyCaseFoldArg* iarg;
|
|
ScanEnv* env;
|
|
CClassNode* cc;
|
|
BitSetRef bs;
|
|
|
|
iarg = (IApplyCaseFoldArg* )arg;
|
|
env = iarg->env;
|
|
cc = iarg->cc;
|
|
bs = cc->bs;
|
|
|
|
if (to_len == 1) {
|
|
int is_in = onig_is_code_in_cc(env->enc, from, cc);
|
|
#ifdef CASE_FOLD_IS_APPLIED_INSIDE_NEGATIVE_CCLASS
|
|
if ((is_in != 0 && !IS_NCCLASS_NOT(cc)) ||
|
|
(is_in == 0 && IS_NCCLASS_NOT(cc))) {
|
|
if (ONIGENC_MBC_MINLEN(env->enc) > 1 || *to >= SINGLE_BYTE_SIZE) {
|
|
add_code_range(&(cc->mbuf), env, *to, *to);
|
|
}
|
|
else {
|
|
BITSET_SET_BIT(bs, *to);
|
|
}
|
|
}
|
|
#else
|
|
if (is_in != 0) {
|
|
if (ONIGENC_MBC_MINLEN(env->enc) > 1 || *to >= SINGLE_BYTE_SIZE) {
|
|
if (IS_NCCLASS_NOT(cc)) clear_not_flag_cclass(cc, env->enc);
|
|
add_code_range(&(cc->mbuf), env, *to, *to);
|
|
}
|
|
else {
|
|
if (IS_NCCLASS_NOT(cc)) {
|
|
BITSET_CLEAR_BIT(bs, *to);
|
|
}
|
|
else
|
|
BITSET_SET_BIT(bs, *to);
|
|
}
|
|
}
|
|
#endif /* CASE_FOLD_IS_APPLIED_INSIDE_NEGATIVE_CCLASS */
|
|
}
|
|
else {
|
|
int r, i, len;
|
|
UChar buf[ONIGENC_CODE_TO_MBC_MAXLEN];
|
|
Node *snode = NULL_NODE;
|
|
|
|
if (onig_is_code_in_cc(env->enc, from, cc)
|
|
#ifdef CASE_FOLD_IS_APPLIED_INSIDE_NEGATIVE_CCLASS
|
|
&& !IS_NCCLASS_NOT(cc)
|
|
#endif
|
|
) {
|
|
for (i = 0; i < to_len; i++) {
|
|
len = ONIGENC_CODE_TO_MBC(env->enc, to[i], buf);
|
|
if (i == 0) {
|
|
snode = onig_node_new_str(buf, buf + len);
|
|
CHECK_NULL_RETURN_MEMERR(snode);
|
|
|
|
/* char-class expanded multi-char only
|
|
compare with string folded at match time. */
|
|
NODE_STRING_SET_AMBIG(snode);
|
|
}
|
|
else {
|
|
r = onig_node_str_cat(snode, buf, buf + len);
|
|
if (r < 0) {
|
|
onig_node_free(snode);
|
|
return r;
|
|
}
|
|
}
|
|
}
|
|
|
|
*(iarg->ptail) = onig_node_new_alt(snode, NULL_NODE);
|
|
CHECK_NULL_RETURN_MEMERR(*(iarg->ptail));
|
|
iarg->ptail = &(NODE_CDR((*(iarg->ptail))));
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
parse_exp(Node** np, PToken* tok, int term, UChar** src, UChar* end,
|
|
ScanEnv* env, int group_head)
|
|
{
|
|
int r, len, group;
|
|
Node* qn;
|
|
Node** tp;
|
|
unsigned int parse_depth;
|
|
|
|
group = 0;
|
|
*np = NULL;
|
|
if (tok->type == (enum TokenSyms )term)
|
|
goto end_of_token;
|
|
|
|
parse_depth = env->parse_depth;
|
|
|
|
switch (tok->type) {
|
|
case TK_ALT:
|
|
case TK_EOT:
|
|
end_of_token:
|
|
*np = node_new_empty();
|
|
CHECK_NULL_RETURN_MEMERR(*np);
|
|
return tok->type;
|
|
break;
|
|
|
|
case TK_SUBEXP_OPEN:
|
|
r = parse_bag(np, tok, TK_SUBEXP_CLOSE, src, end, env);
|
|
if (r < 0) return r;
|
|
if (r == 1) { /* group */
|
|
if (group_head == 0)
|
|
group = 1;
|
|
else {
|
|
Node* target = *np;
|
|
*np = node_new_group(target);
|
|
if (IS_NULL(*np)) {
|
|
onig_node_free(target);
|
|
return ONIGERR_MEMORY;
|
|
}
|
|
group = 2;
|
|
}
|
|
}
|
|
else if (r == 2) { /* option only */
|
|
Node* target;
|
|
OnigOptionType prev = env->options;
|
|
|
|
env->options = BAG_(*np)->o.options;
|
|
r = fetch_token(tok, src, end, env);
|
|
if (r < 0) return r;
|
|
r = parse_subexp(&target, tok, term, src, end, env, 0);
|
|
env->options = prev;
|
|
if (r < 0) {
|
|
onig_node_free(target);
|
|
return r;
|
|
}
|
|
NODE_BODY(*np) = target;
|
|
return tok->type;
|
|
}
|
|
break;
|
|
|
|
case TK_SUBEXP_CLOSE:
|
|
if (! IS_SYNTAX_BV(env->syntax, ONIG_SYN_ALLOW_UNMATCHED_CLOSE_SUBEXP))
|
|
return ONIGERR_UNMATCHED_CLOSE_PARENTHESIS;
|
|
|
|
if (tok->escaped) goto tk_raw_byte;
|
|
else goto tk_byte;
|
|
break;
|
|
|
|
case TK_STRING:
|
|
tk_byte:
|
|
{
|
|
*np = node_new_str(tok->backp, *src);
|
|
CHECK_NULL_RETURN_MEMERR(*np);
|
|
|
|
while (1) {
|
|
r = fetch_token(tok, src, end, env);
|
|
if (r < 0) return r;
|
|
if (r != TK_STRING) break;
|
|
|
|
r = onig_node_str_cat(*np, tok->backp, *src);
|
|
if (r < 0) return r;
|
|
}
|
|
|
|
string_end:
|
|
tp = np;
|
|
goto repeat;
|
|
}
|
|
break;
|
|
|
|
case TK_RAW_BYTE:
|
|
tk_raw_byte:
|
|
{
|
|
*np = node_new_str_raw_char((UChar )tok->u.c);
|
|
CHECK_NULL_RETURN_MEMERR(*np);
|
|
len = 1;
|
|
while (1) {
|
|
if (len >= ONIGENC_MBC_MINLEN(env->enc)) {
|
|
if (len == enclen(env->enc, STR_(*np)->s)) {
|
|
r = fetch_token(tok, src, end, env);
|
|
goto tk_raw_byte_end;
|
|
}
|
|
}
|
|
|
|
r = fetch_token(tok, src, end, env);
|
|
if (r < 0) return r;
|
|
if (r != TK_RAW_BYTE)
|
|
return ONIGERR_TOO_SHORT_MULTI_BYTE_STRING;
|
|
|
|
r = node_str_cat_char(*np, (UChar )tok->u.c);
|
|
if (r < 0) return r;
|
|
|
|
len++;
|
|
}
|
|
|
|
tk_raw_byte_end:
|
|
if (! ONIGENC_IS_VALID_MBC_STRING(env->enc, STR_(*np)->s, STR_(*np)->end))
|
|
return ONIGERR_INVALID_WIDE_CHAR_VALUE;
|
|
|
|
NODE_STRING_CLEAR_RAW(*np);
|
|
goto string_end;
|
|
}
|
|
break;
|
|
|
|
case TK_CODE_POINT:
|
|
{
|
|
UChar buf[ONIGENC_CODE_TO_MBC_MAXLEN];
|
|
len = ONIGENC_CODE_TO_MBC(env->enc, tok->u.code, buf);
|
|
if (len < 0) return len;
|
|
#ifdef NUMBERED_CHAR_IS_NOT_CASE_AMBIG
|
|
*np = node_new_str_raw(buf, buf + len);
|
|
#else
|
|
*np = node_new_str(buf, buf + len);
|
|
#endif
|
|
CHECK_NULL_RETURN_MEMERR(*np);
|
|
}
|
|
break;
|
|
|
|
case TK_QUOTE_OPEN:
|
|
{
|
|
OnigCodePoint end_op[2];
|
|
UChar *qstart, *qend, *nextp;
|
|
|
|
end_op[0] = (OnigCodePoint )MC_ESC(env->syntax);
|
|
end_op[1] = (OnigCodePoint )'E';
|
|
qstart = *src;
|
|
qend = find_str_position(end_op, 2, qstart, end, &nextp, env->enc);
|
|
if (IS_NULL(qend)) {
|
|
nextp = qend = end;
|
|
}
|
|
*np = node_new_str(qstart, qend);
|
|
CHECK_NULL_RETURN_MEMERR(*np);
|
|
*src = nextp;
|
|
}
|
|
break;
|
|
|
|
case TK_CHAR_TYPE:
|
|
{
|
|
switch (tok->u.prop.ctype) {
|
|
case ONIGENC_CTYPE_WORD:
|
|
*np = node_new_ctype(tok->u.prop.ctype, tok->u.prop.not, env->options);
|
|
CHECK_NULL_RETURN_MEMERR(*np);
|
|
break;
|
|
|
|
case ONIGENC_CTYPE_SPACE:
|
|
case ONIGENC_CTYPE_DIGIT:
|
|
case ONIGENC_CTYPE_XDIGIT:
|
|
{
|
|
CClassNode* cc;
|
|
|
|
*np = node_new_cclass();
|
|
CHECK_NULL_RETURN_MEMERR(*np);
|
|
cc = CCLASS_(*np);
|
|
add_ctype_to_cc(cc, tok->u.prop.ctype, 0, env);
|
|
if (tok->u.prop.not != 0) NCCLASS_SET_NOT(cc);
|
|
}
|
|
break;
|
|
|
|
default:
|
|
return ONIGERR_PARSER_BUG;
|
|
break;
|
|
}
|
|
}
|
|
break;
|
|
|
|
case TK_CHAR_PROPERTY:
|
|
r = parse_char_property(np, tok, src, end, env);
|
|
if (r != 0) return r;
|
|
break;
|
|
|
|
case TK_CC_OPEN:
|
|
{
|
|
CClassNode* cc;
|
|
|
|
r = parse_char_class(np, tok, src, end, env);
|
|
if (r != 0) return r;
|
|
|
|
cc = CCLASS_(*np);
|
|
if (IS_IGNORECASE(env->options)) {
|
|
IApplyCaseFoldArg iarg;
|
|
|
|
iarg.env = env;
|
|
iarg.cc = cc;
|
|
iarg.alt_root = NULL_NODE;
|
|
iarg.ptail = &(iarg.alt_root);
|
|
|
|
r = ONIGENC_APPLY_ALL_CASE_FOLD(env->enc, env->case_fold_flag,
|
|
i_apply_case_fold, &iarg);
|
|
if (r != 0) {
|
|
onig_node_free(iarg.alt_root);
|
|
return r;
|
|
}
|
|
if (IS_NOT_NULL(iarg.alt_root)) {
|
|
Node* work = onig_node_new_alt(*np, iarg.alt_root);
|
|
if (IS_NULL(work)) {
|
|
onig_node_free(iarg.alt_root);
|
|
return ONIGERR_MEMORY;
|
|
}
|
|
*np = work;
|
|
}
|
|
}
|
|
}
|
|
break;
|
|
|
|
case TK_ANYCHAR:
|
|
*np = node_new_anychar();
|
|
CHECK_NULL_RETURN_MEMERR(*np);
|
|
break;
|
|
|
|
case TK_ANYCHAR_ANYTIME:
|
|
*np = node_new_anychar();
|
|
CHECK_NULL_RETURN_MEMERR(*np);
|
|
qn = node_new_quantifier(0, INFINITE_REPEAT, 0);
|
|
CHECK_NULL_RETURN_MEMERR(qn);
|
|
NODE_BODY(qn) = *np;
|
|
*np = qn;
|
|
break;
|
|
|
|
case TK_BACKREF:
|
|
len = tok->u.backref.num;
|
|
*np = node_new_backref(len,
|
|
(len > 1 ? tok->u.backref.refs : &(tok->u.backref.ref1)),
|
|
tok->u.backref.by_name,
|
|
#ifdef USE_BACKREF_WITH_LEVEL
|
|
tok->u.backref.exist_level,
|
|
tok->u.backref.level,
|
|
#endif
|
|
env);
|
|
CHECK_NULL_RETURN_MEMERR(*np);
|
|
break;
|
|
|
|
#ifdef USE_CALL
|
|
case TK_CALL:
|
|
{
|
|
int gnum = tok->u.call.gnum;
|
|
|
|
*np = node_new_call(tok->u.call.name, tok->u.call.name_end,
|
|
gnum, tok->u.call.by_number);
|
|
CHECK_NULL_RETURN_MEMERR(*np);
|
|
env->num_call++;
|
|
if (tok->u.call.by_number != 0 && gnum == 0) {
|
|
env->has_call_zero = 1;
|
|
}
|
|
}
|
|
break;
|
|
#endif
|
|
|
|
case TK_ANCHOR:
|
|
{
|
|
int ascii_mode =
|
|
IS_WORD_ASCII(env->options) && IS_WORD_ANCHOR_TYPE(tok->u.anchor) ? 1 : 0;
|
|
*np = onig_node_new_anchor(tok->u.anchor, ascii_mode);
|
|
CHECK_NULL_RETURN_MEMERR(*np);
|
|
}
|
|
break;
|
|
|
|
case TK_REPEAT:
|
|
case TK_INTERVAL:
|
|
if (IS_SYNTAX_BV(env->syntax, ONIG_SYN_CONTEXT_INDEP_REPEAT_OPS)) {
|
|
if (IS_SYNTAX_BV(env->syntax, ONIG_SYN_CONTEXT_INVALID_REPEAT_OPS))
|
|
return ONIGERR_TARGET_OF_REPEAT_OPERATOR_NOT_SPECIFIED;
|
|
else {
|
|
*np = node_new_empty();
|
|
CHECK_NULL_RETURN_MEMERR(*np);
|
|
}
|
|
}
|
|
else {
|
|
goto tk_byte;
|
|
}
|
|
break;
|
|
|
|
case TK_KEEP:
|
|
r = node_new_keep(np, env);
|
|
if (r < 0) return r;
|
|
break;
|
|
|
|
case TK_GENERAL_NEWLINE:
|
|
r = node_new_general_newline(np, env);
|
|
if (r < 0) return r;
|
|
break;
|
|
|
|
case TK_NO_NEWLINE:
|
|
r = node_new_no_newline(np, env);
|
|
if (r < 0) return r;
|
|
break;
|
|
|
|
case TK_TRUE_ANYCHAR:
|
|
r = node_new_true_anychar(np, env);
|
|
if (r < 0) return r;
|
|
break;
|
|
|
|
case TK_TEXT_SEGMENT:
|
|
r = make_text_segment(np, env);
|
|
if (r < 0) return r;
|
|
break;
|
|
|
|
default:
|
|
return ONIGERR_PARSER_BUG;
|
|
break;
|
|
}
|
|
|
|
{
|
|
tp = np;
|
|
|
|
re_entry:
|
|
r = fetch_token(tok, src, end, env);
|
|
if (r < 0) return r;
|
|
|
|
repeat:
|
|
if (r == TK_REPEAT || r == TK_INTERVAL) {
|
|
Node* target;
|
|
|
|
if (is_invalid_quantifier_target(*tp))
|
|
return ONIGERR_TARGET_OF_REPEAT_OPERATOR_INVALID;
|
|
|
|
parse_depth++;
|
|
if (parse_depth > ParseDepthLimit)
|
|
return ONIGERR_PARSE_DEPTH_LIMIT_OVER;
|
|
|
|
qn = node_new_quantifier(tok->u.repeat.lower, tok->u.repeat.upper,
|
|
r == TK_INTERVAL);
|
|
CHECK_NULL_RETURN_MEMERR(qn);
|
|
QUANT_(qn)->greedy = tok->u.repeat.greedy;
|
|
if (group == 2) {
|
|
target = node_drop_group(*tp);
|
|
*tp = NULL_NODE;
|
|
}
|
|
else {
|
|
target = *tp;
|
|
}
|
|
r = set_quantifier(qn, target, group, env);
|
|
if (r < 0) {
|
|
onig_node_free(qn);
|
|
return r;
|
|
}
|
|
|
|
if (tok->u.repeat.possessive != 0) {
|
|
Node* en;
|
|
en = node_new_bag(BAG_STOP_BACKTRACK);
|
|
if (IS_NULL(en)) {
|
|
onig_node_free(qn);
|
|
return ONIGERR_MEMORY;
|
|
}
|
|
NODE_BODY(en) = qn;
|
|
qn = en;
|
|
}
|
|
|
|
if (r == 0) {
|
|
*tp = qn;
|
|
}
|
|
else if (r == 1) { /* x{1,1} ==> x */
|
|
onig_node_free(qn);
|
|
*tp = target;
|
|
}
|
|
else if (r == 2) { /* split case: /abc+/ */
|
|
Node *tmp;
|
|
|
|
*tp = node_new_list(*tp, NULL);
|
|
if (IS_NULL(*tp)) {
|
|
onig_node_free(qn);
|
|
return ONIGERR_MEMORY;
|
|
}
|
|
tmp = NODE_CDR(*tp) = node_new_list(qn, NULL);
|
|
if (IS_NULL(tmp)) {
|
|
onig_node_free(qn);
|
|
return ONIGERR_MEMORY;
|
|
}
|
|
tp = &(NODE_CAR(tmp));
|
|
}
|
|
group = 0;
|
|
goto re_entry;
|
|
}
|
|
}
|
|
|
|
return r;
|
|
}
|
|
|
|
static int
|
|
parse_branch(Node** top, PToken* tok, int term, UChar** src, UChar* end,
|
|
ScanEnv* env, int group_head)
|
|
{
|
|
int r;
|
|
Node *node, **headp;
|
|
|
|
*top = NULL;
|
|
r = parse_exp(&node, tok, term, src, end, env, group_head);
|
|
if (r < 0) {
|
|
onig_node_free(node);
|
|
return r;
|
|
}
|
|
|
|
if (r == TK_EOT || r == term || r == TK_ALT) {
|
|
*top = node;
|
|
}
|
|
else {
|
|
*top = node_new_list(node, NULL);
|
|
if (IS_NULL(*top)) {
|
|
onig_node_free(node);
|
|
return ONIGERR_MEMORY;
|
|
}
|
|
|
|
headp = &(NODE_CDR(*top));
|
|
while (r != TK_EOT && r != term && r != TK_ALT) {
|
|
r = parse_exp(&node, tok, term, src, end, env, 0);
|
|
if (r < 0) {
|
|
onig_node_free(node);
|
|
return r;
|
|
}
|
|
|
|
if (NODE_TYPE(node) == NODE_LIST) {
|
|
*headp = node;
|
|
while (IS_NOT_NULL(NODE_CDR(node))) node = NODE_CDR(node);
|
|
headp = &(NODE_CDR(node));
|
|
}
|
|
else {
|
|
*headp = node_new_list(node, NULL);
|
|
headp = &(NODE_CDR(*headp));
|
|
}
|
|
}
|
|
}
|
|
|
|
return r;
|
|
}
|
|
|
|
/* term_tok: TK_EOT or TK_SUBEXP_CLOSE */
|
|
static int
|
|
parse_subexp(Node** top, PToken* tok, int term, UChar** src, UChar* end,
|
|
ScanEnv* env, int group_head)
|
|
{
|
|
int r;
|
|
Node *node, **headp;
|
|
|
|
*top = NULL;
|
|
env->parse_depth++;
|
|
if (env->parse_depth > ParseDepthLimit)
|
|
return ONIGERR_PARSE_DEPTH_LIMIT_OVER;
|
|
|
|
r = parse_branch(&node, tok, term, src, end, env, group_head);
|
|
if (r < 0) {
|
|
onig_node_free(node);
|
|
return r;
|
|
}
|
|
|
|
if (r == term) {
|
|
*top = node;
|
|
}
|
|
else if (r == TK_ALT) {
|
|
*top = onig_node_new_alt(node, NULL);
|
|
if (IS_NULL(*top)) {
|
|
onig_node_free(node);
|
|
return ONIGERR_MEMORY;
|
|
}
|
|
|
|
headp = &(NODE_CDR(*top));
|
|
while (r == TK_ALT) {
|
|
r = fetch_token(tok, src, end, env);
|
|
if (r < 0) return r;
|
|
r = parse_branch(&node, tok, term, src, end, env, 0);
|
|
if (r < 0) {
|
|
onig_node_free(node);
|
|
return r;
|
|
}
|
|
*headp = onig_node_new_alt(node, NULL);
|
|
if (IS_NULL(*headp)) {
|
|
onig_node_free(node);
|
|
onig_node_free(*top);
|
|
return ONIGERR_MEMORY;
|
|
}
|
|
|
|
headp = &(NODE_CDR(*headp));
|
|
}
|
|
|
|
if (tok->type != (enum TokenSyms )term)
|
|
goto err;
|
|
}
|
|
else {
|
|
onig_node_free(node);
|
|
err:
|
|
if (term == TK_SUBEXP_CLOSE)
|
|
return ONIGERR_END_PATTERN_WITH_UNMATCHED_PARENTHESIS;
|
|
else
|
|
return ONIGERR_PARSER_BUG;
|
|
}
|
|
|
|
env->parse_depth--;
|
|
return r;
|
|
}
|
|
|
|
static int
|
|
parse_regexp(Node** top, UChar** src, UChar* end, ScanEnv* env)
|
|
{
|
|
int r;
|
|
PToken tok;
|
|
|
|
r = fetch_token(&tok, src, end, env);
|
|
if (r < 0) return r;
|
|
r = parse_subexp(top, &tok, TK_EOT, src, end, env, 0);
|
|
if (r < 0) return r;
|
|
|
|
return 0;
|
|
}
|
|
|
|
#ifdef USE_CALL
|
|
static int
|
|
make_call_zero_body(Node* node, ScanEnv* env, Node** rnode)
|
|
{
|
|
int r;
|
|
|
|
Node* x = node_new_memory(0 /* 0: is not named */);
|
|
CHECK_NULL_RETURN_MEMERR(x);
|
|
|
|
NODE_BODY(x) = node;
|
|
BAG_(x)->m.regnum = 0;
|
|
r = scan_env_set_mem_node(env, 0, x);
|
|
if (r != 0) {
|
|
onig_node_free(x);
|
|
return r;
|
|
}
|
|
|
|
*rnode = x;
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
|
extern int
|
|
onig_parse_tree(Node** root, const UChar* pattern, const UChar* end,
|
|
regex_t* reg, ScanEnv* env)
|
|
{
|
|
int r;
|
|
UChar* p;
|
|
#ifdef USE_CALLOUT
|
|
RegexExt* ext;
|
|
#endif
|
|
|
|
names_clear(reg);
|
|
|
|
scan_env_clear(env);
|
|
env->options = reg->options;
|
|
env->case_fold_flag = reg->case_fold_flag;
|
|
env->enc = reg->enc;
|
|
env->syntax = reg->syntax;
|
|
env->pattern = (UChar* )pattern;
|
|
env->pattern_end = (UChar* )end;
|
|
env->reg = reg;
|
|
|
|
*root = NULL;
|
|
|
|
if (! ONIGENC_IS_VALID_MBC_STRING(env->enc, pattern, end))
|
|
return ONIGERR_INVALID_WIDE_CHAR_VALUE;
|
|
|
|
p = (UChar* )pattern;
|
|
r = parse_regexp(root, &p, (UChar* )end, env);
|
|
|
|
#ifdef USE_CALL
|
|
if (r != 0) return r;
|
|
|
|
if (env->has_call_zero != 0) {
|
|
Node* zero_node;
|
|
r = make_call_zero_body(*root, env, &zero_node);
|
|
if (r != 0) return r;
|
|
|
|
*root = zero_node;
|
|
}
|
|
#endif
|
|
|
|
reg->num_mem = env->num_mem;
|
|
|
|
#ifdef USE_CALLOUT
|
|
ext = reg->extp;
|
|
if (IS_NOT_NULL(ext) && ext->callout_num > 0) {
|
|
r = setup_ext_callout_list_values(reg);
|
|
}
|
|
#endif
|
|
|
|
return r;
|
|
}
|
|
|
|
extern void
|
|
onig_scan_env_set_error_string(ScanEnv* env, int ecode ARG_UNUSED,
|
|
UChar* arg, UChar* arg_end)
|
|
{
|
|
env->error = arg;
|
|
env->error_end = arg_end;
|
|
}
|