зеркало из https://github.com/github/ruby.git
4342 строки
106 KiB
C
4342 строки
106 KiB
C
/**********************************************************************
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regexec.c - Onigmo (Oniguruma-mod) (regular expression library)
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**********************************************************************/
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/*-
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* Copyright (c) 2002-2008 K.Kosako <sndgk393 AT ybb DOT ne DOT jp>
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* Copyright (c) 2011-2012 K.Takata <kentkt AT csc 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 "regint.h"
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/* #define USE_MATCH_RANGE_MUST_BE_INSIDE_OF_SPECIFIED_RANGE */
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#ifdef USE_CRNL_AS_LINE_TERMINATOR
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#define ONIGENC_IS_MBC_CRNL(enc,p,end) \
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(ONIGENC_MBC_TO_CODE(enc,p,end) == 13 && \
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ONIGENC_MBC_TO_CODE(enc,(p+enclen(enc,p,end)),end) == 10)
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#define ONIGENC_IS_MBC_NEWLINE_EX(enc,p,start,end,option,check_prev) \
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is_mbc_newline_ex((enc),(p),(start),(end),(option),(check_prev))
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static int
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is_mbc_newline_ex(OnigEncoding enc, const UChar *p, const UChar *start,
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const UChar *end, OnigOptionType option, int check_prev)
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{
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if (IS_NEWLINE_CRLF(option)) {
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if (ONIGENC_MBC_TO_CODE(enc, p, end) == 0x0a) {
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if (check_prev) {
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const UChar *prev = onigenc_get_prev_char_head(enc, start, p, end);
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if ((prev != NULL) && ONIGENC_MBC_TO_CODE(enc, prev, end) == 0x0d)
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return 0;
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else
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return 1;
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}
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else
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return 1;
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}
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else {
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const UChar *pnext = p + enclen(enc, p, end);
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if (pnext < end &&
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ONIGENC_MBC_TO_CODE(enc, p, end) == 0x0d &&
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ONIGENC_MBC_TO_CODE(enc, pnext, end) == 0x0a)
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return 1;
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if (ONIGENC_IS_MBC_NEWLINE(enc, p, end))
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return 1;
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return 0;
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}
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}
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else {
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return ONIGENC_IS_MBC_NEWLINE(enc, p, end);
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}
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}
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#else /* USE_CRNL_AS_LINE_TERMINATOR */
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#define ONIGENC_IS_MBC_NEWLINE_EX(enc,p,start,end,option,check_prev) \
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ONIGENC_IS_MBC_NEWLINE((enc), (p), (end))
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#endif /* USE_CRNL_AS_LINE_TERMINATOR */
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#ifdef USE_CAPTURE_HISTORY
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static void history_tree_free(OnigCaptureTreeNode* node);
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static void
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history_tree_clear(OnigCaptureTreeNode* node)
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{
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int i;
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if (IS_NOT_NULL(node)) {
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for (i = 0; i < node->num_childs; i++) {
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if (IS_NOT_NULL(node->childs[i])) {
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history_tree_free(node->childs[i]);
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}
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}
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for (i = 0; i < node->allocated; i++) {
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node->childs[i] = (OnigCaptureTreeNode* )0;
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}
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node->num_childs = 0;
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node->beg = ONIG_REGION_NOTPOS;
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node->end = ONIG_REGION_NOTPOS;
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node->group = -1;
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xfree(node->childs);
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node->childs = (OnigCaptureTreeNode** )0;
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}
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}
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static void
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history_tree_free(OnigCaptureTreeNode* node)
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{
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history_tree_clear(node);
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xfree(node);
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}
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static void
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history_root_free(OnigRegion* r)
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{
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if (IS_NOT_NULL(r->history_root)) {
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history_tree_free(r->history_root);
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r->history_root = (OnigCaptureTreeNode* )0;
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}
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}
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static OnigCaptureTreeNode*
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history_node_new(void)
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{
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OnigCaptureTreeNode* node;
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node = (OnigCaptureTreeNode* )xmalloc(sizeof(OnigCaptureTreeNode));
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CHECK_NULL_RETURN(node);
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node->childs = (OnigCaptureTreeNode** )0;
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node->allocated = 0;
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node->num_childs = 0;
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node->group = -1;
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node->beg = ONIG_REGION_NOTPOS;
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node->end = ONIG_REGION_NOTPOS;
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return node;
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}
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static int
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history_tree_add_child(OnigCaptureTreeNode* parent, OnigCaptureTreeNode* child)
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{
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#define HISTORY_TREE_INIT_ALLOC_SIZE 8
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if (parent->num_childs >= parent->allocated) {
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int n, i;
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if (IS_NULL(parent->childs)) {
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n = HISTORY_TREE_INIT_ALLOC_SIZE;
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parent->childs =
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(OnigCaptureTreeNode** )xmalloc(sizeof(OnigCaptureTreeNode*) * n);
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CHECK_NULL_RETURN_MEMERR(parent->childs);
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}
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else {
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OnigCaptureTreeNode** tmp;
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n = parent->allocated * 2;
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tmp =
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(OnigCaptureTreeNode** )xrealloc(parent->childs,
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sizeof(OnigCaptureTreeNode*) * n);
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if (tmp == 0) {
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history_tree_clear(parent);
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return ONIGERR_MEMORY;
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}
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parent->childs = tmp;
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}
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for (i = parent->allocated; i < n; i++) {
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parent->childs[i] = (OnigCaptureTreeNode* )0;
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}
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parent->allocated = n;
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}
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parent->childs[parent->num_childs] = child;
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parent->num_childs++;
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return 0;
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}
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static OnigCaptureTreeNode*
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history_tree_clone(OnigCaptureTreeNode* node)
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{
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int i, r;
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OnigCaptureTreeNode *clone, *child;
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clone = history_node_new();
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CHECK_NULL_RETURN(clone);
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clone->beg = node->beg;
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clone->end = node->end;
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for (i = 0; i < node->num_childs; i++) {
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child = history_tree_clone(node->childs[i]);
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if (IS_NULL(child)) {
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history_tree_free(clone);
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return (OnigCaptureTreeNode* )0;
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}
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r = history_tree_add_child(clone, child);
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if (r != 0) {
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history_tree_free(child);
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history_tree_free(clone);
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return (OnigCaptureTreeNode* )0;
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}
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}
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return clone;
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}
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extern OnigCaptureTreeNode*
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onig_get_capture_tree(OnigRegion* region)
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{
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return region->history_root;
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}
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#endif /* USE_CAPTURE_HISTORY */
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extern void
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onig_region_clear(OnigRegion* region)
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{
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int i;
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for (i = 0; i < region->num_regs; i++) {
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region->beg[i] = region->end[i] = ONIG_REGION_NOTPOS;
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}
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#ifdef USE_CAPTURE_HISTORY
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history_root_free(region);
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#endif
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}
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extern int
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onig_region_resize(OnigRegion* region, int n)
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{
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region->num_regs = n;
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if (n < ONIG_NREGION)
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n = ONIG_NREGION;
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if (region->allocated == 0) {
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region->beg = (OnigPosition* )xmalloc(n * sizeof(OnigPosition));
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if (region->beg == 0)
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return ONIGERR_MEMORY;
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region->end = (OnigPosition* )xmalloc(n * sizeof(OnigPosition));
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if (region->end == 0) {
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xfree(region->beg);
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return ONIGERR_MEMORY;
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}
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region->allocated = n;
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}
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else if (region->allocated < n) {
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OnigPosition *tmp;
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region->allocated = 0;
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tmp = (OnigPosition* )xrealloc(region->beg, n * sizeof(OnigPosition));
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if (tmp == 0) {
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xfree(region->beg);
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xfree(region->end);
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return ONIGERR_MEMORY;
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}
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region->beg = tmp;
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tmp = (OnigPosition* )xrealloc(region->end, n * sizeof(OnigPosition));
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if (tmp == 0) {
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xfree(region->beg);
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xfree(region->end);
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return ONIGERR_MEMORY;
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}
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region->end = tmp;
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region->allocated = n;
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}
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return 0;
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}
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static int
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onig_region_resize_clear(OnigRegion* region, int n)
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{
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int r;
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r = onig_region_resize(region, n);
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if (r != 0) return r;
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onig_region_clear(region);
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return 0;
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}
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extern int
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onig_region_set(OnigRegion* region, int at, int beg, int end)
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{
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if (at < 0) return ONIGERR_INVALID_ARGUMENT;
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if (at >= region->allocated) {
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int r = onig_region_resize(region, at + 1);
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if (r < 0) return r;
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}
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region->beg[at] = beg;
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region->end[at] = end;
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return 0;
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}
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extern void
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onig_region_init(OnigRegion* region)
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{
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region->num_regs = 0;
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region->allocated = 0;
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region->beg = (OnigPosition* )0;
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region->end = (OnigPosition* )0;
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region->history_root = (OnigCaptureTreeNode* )0;
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}
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extern OnigRegion*
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onig_region_new(void)
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{
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OnigRegion* r;
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r = (OnigRegion* )xmalloc(sizeof(OnigRegion));
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if (r)
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onig_region_init(r);
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return r;
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}
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extern void
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onig_region_free(OnigRegion* r, int free_self)
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{
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if (r) {
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if (r->allocated > 0) {
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if (r->beg) xfree(r->beg);
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if (r->end) xfree(r->end);
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r->allocated = 0;
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}
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#ifdef USE_CAPTURE_HISTORY
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history_root_free(r);
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#endif
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if (free_self) xfree(r);
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}
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}
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extern void
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onig_region_copy(OnigRegion* to, OnigRegion* from)
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{
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#define RREGC_SIZE (sizeof(int) * from->num_regs)
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int i, r;
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if (to == from) return;
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r = onig_region_resize(to, from->num_regs);
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if (r) return;
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for (i = 0; i < from->num_regs; i++) {
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to->beg[i] = from->beg[i];
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to->end[i] = from->end[i];
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}
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to->num_regs = from->num_regs;
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#ifdef USE_CAPTURE_HISTORY
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history_root_free(to);
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if (IS_NOT_NULL(from->history_root)) {
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to->history_root = history_tree_clone(from->history_root);
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}
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#endif
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}
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/** stack **/
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#define INVALID_STACK_INDEX -1
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/* stack type */
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/* used by normal-POP */
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#define STK_ALT 0x0001
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#define STK_LOOK_BEHIND_NOT 0x0002
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#define STK_POS_NOT 0x0003
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/* handled by normal-POP */
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#define STK_MEM_START 0x0100
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#define STK_MEM_END 0x8200
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#define STK_REPEAT_INC 0x0300
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#define STK_STATE_CHECK_MARK 0x1000
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/* avoided by normal-POP */
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#define STK_NULL_CHECK_START 0x3000
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#define STK_NULL_CHECK_END 0x5000 /* for recursive call */
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#define STK_MEM_END_MARK 0x8400
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#define STK_POS 0x0500 /* used when POP-POS */
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#define STK_STOP_BT 0x0600 /* mark for "(?>...)" */
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#define STK_REPEAT 0x0700
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#define STK_CALL_FRAME 0x0800
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#define STK_RETURN 0x0900
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#define STK_VOID 0x0a00 /* for fill a blank */
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/* stack type check mask */
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#define STK_MASK_POP_USED 0x00ff
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#define STK_MASK_TO_VOID_TARGET 0x10ff
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#define STK_MASK_MEM_END_OR_MARK 0x8000 /* MEM_END or MEM_END_MARK */
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#ifdef USE_FIND_LONGEST_SEARCH_ALL_OF_RANGE
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#define MATCH_ARG_INIT(msa, arg_option, arg_region, arg_start, arg_gpos) do {\
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(msa).stack_p = (void* )0;\
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(msa).options = (arg_option);\
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(msa).region = (arg_region);\
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(msa).start = (arg_start);\
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(msa).gpos = (arg_gpos);\
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(msa).best_len = ONIG_MISMATCH;\
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} while(0)
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#else
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#define MATCH_ARG_INIT(msa, arg_option, arg_region, arg_start, arg_gpos) do {\
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(msa).stack_p = (void* )0;\
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(msa).options = (arg_option);\
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(msa).region = (arg_region);\
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(msa).start = (arg_start);\
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(msa).gpos = (arg_gpos);\
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} while(0)
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#endif
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#ifdef USE_COMBINATION_EXPLOSION_CHECK
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#define STATE_CHECK_BUFF_MALLOC_THRESHOLD_SIZE 16
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#define STATE_CHECK_BUFF_INIT(msa, str_len, offset, state_num) do { \
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if ((state_num) > 0 && str_len >= STATE_CHECK_STRING_THRESHOLD_LEN) {\
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unsigned int size = (unsigned int )(((str_len) + 1) * (state_num) + 7) >> 3;\
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offset = ((offset) * (state_num)) >> 3;\
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if (size > 0 && offset < size && size < STATE_CHECK_BUFF_MAX_SIZE) {\
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if (size >= STATE_CHECK_BUFF_MALLOC_THRESHOLD_SIZE) {\
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(msa).state_check_buff = (void* )xmalloc(size);\
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CHECK_NULL_RETURN_MEMERR((msa).state_check_buff);\
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}\
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else \
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(msa).state_check_buff = (void* )xalloca(size);\
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xmemset(((char* )((msa).state_check_buff)+(offset)), 0, \
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(size_t )(size - (offset))); \
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(msa).state_check_buff_size = size;\
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}\
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else {\
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(msa).state_check_buff = (void* )0;\
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(msa).state_check_buff_size = 0;\
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}\
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}\
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else {\
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(msa).state_check_buff = (void* )0;\
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(msa).state_check_buff_size = 0;\
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}\
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} while(0)
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#define MATCH_ARG_FREE(msa) do {\
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if ((msa).stack_p) xfree((msa).stack_p);\
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if ((msa).state_check_buff_size >= STATE_CHECK_BUFF_MALLOC_THRESHOLD_SIZE) { \
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if ((msa).state_check_buff) xfree((msa).state_check_buff);\
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}\
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} while(0)
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#else /* USE_COMBINATION_EXPLOSION_CHECK */
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#define MATCH_ARG_FREE(msa) if ((msa).stack_p) xfree((msa).stack_p)
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#endif /* USE_COMBINATION_EXPLOSION_CHECK */
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#define STACK_INIT(alloc_addr, ptr_num, stack_num) do {\
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if (msa->stack_p) {\
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alloc_addr = (char* )xalloca(sizeof(char*) * (ptr_num));\
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stk_alloc = (OnigStackType* )(msa->stack_p);\
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stk_base = stk_alloc;\
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stk = stk_base;\
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stk_end = stk_base + msa->stack_n;\
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}\
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else {\
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alloc_addr = (char* )xalloca(sizeof(char*) * (ptr_num)\
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+ sizeof(OnigStackType) * (stack_num));\
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stk_alloc = (OnigStackType* )(alloc_addr + sizeof(char*) * (ptr_num));\
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stk_base = stk_alloc;\
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stk = stk_base;\
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stk_end = stk_base + (stack_num);\
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}\
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} while(0)
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#define STACK_SAVE do{\
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if (stk_base != stk_alloc) {\
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msa->stack_p = stk_base;\
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msa->stack_n = stk_end - stk_base; /* TODO: check overflow */\
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};\
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} while(0)
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static unsigned int MatchStackLimitSize = DEFAULT_MATCH_STACK_LIMIT_SIZE;
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extern unsigned int
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onig_get_match_stack_limit_size(void)
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{
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return MatchStackLimitSize;
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}
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extern int
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onig_set_match_stack_limit_size(unsigned int size)
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{
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MatchStackLimitSize = size;
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return 0;
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}
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static int
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stack_double(OnigStackType** arg_stk_base, OnigStackType** arg_stk_end,
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OnigStackType** arg_stk, OnigStackType* stk_alloc, OnigMatchArg* msa)
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{
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size_t n;
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OnigStackType *x, *stk_base, *stk_end, *stk;
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stk_base = *arg_stk_base;
|
|
stk_end = *arg_stk_end;
|
|
stk = *arg_stk;
|
|
|
|
n = stk_end - stk_base;
|
|
if (stk_base == stk_alloc && IS_NULL(msa->stack_p)) {
|
|
x = (OnigStackType* )xmalloc(sizeof(OnigStackType) * n * 2);
|
|
if (IS_NULL(x)) {
|
|
STACK_SAVE;
|
|
return ONIGERR_MEMORY;
|
|
}
|
|
xmemcpy(x, stk_base, n * sizeof(OnigStackType));
|
|
n *= 2;
|
|
}
|
|
else {
|
|
unsigned int limit_size = MatchStackLimitSize;
|
|
n *= 2;
|
|
if (limit_size != 0 && n > limit_size) {
|
|
if ((unsigned int )(stk_end - stk_base) == limit_size)
|
|
return ONIGERR_MATCH_STACK_LIMIT_OVER;
|
|
else
|
|
n = limit_size;
|
|
}
|
|
x = (OnigStackType* )xrealloc(stk_base, sizeof(OnigStackType) * n);
|
|
if (IS_NULL(x)) {
|
|
STACK_SAVE;
|
|
return ONIGERR_MEMORY;
|
|
}
|
|
}
|
|
*arg_stk = x + (stk - stk_base);
|
|
*arg_stk_base = x;
|
|
*arg_stk_end = x + n;
|
|
return 0;
|
|
}
|
|
|
|
#define STACK_ENSURE(n) do {\
|
|
if (stk_end - stk < (n)) {\
|
|
int r = stack_double(&stk_base, &stk_end, &stk, stk_alloc, msa);\
|
|
if (r != 0) { STACK_SAVE; return r; } \
|
|
}\
|
|
} while(0)
|
|
|
|
#define STACK_AT(index) (stk_base + (index))
|
|
#define GET_STACK_INDEX(stk) ((stk) - stk_base)
|
|
|
|
#define STACK_PUSH_TYPE(stack_type) do {\
|
|
STACK_ENSURE(1);\
|
|
stk->type = (stack_type);\
|
|
STACK_INC;\
|
|
} while(0)
|
|
|
|
#define IS_TO_VOID_TARGET(stk) (((stk)->type & STK_MASK_TO_VOID_TARGET) != 0)
|
|
|
|
#ifdef USE_COMBINATION_EXPLOSION_CHECK
|
|
#define STATE_CHECK_POS(s,snum) \
|
|
(((s) - str) * num_comb_exp_check + ((snum) - 1))
|
|
#define STATE_CHECK_VAL(v,snum) do {\
|
|
if (state_check_buff != NULL) {\
|
|
int x = STATE_CHECK_POS(s,snum);\
|
|
(v) = state_check_buff[x/8] & (1<<(x%8));\
|
|
}\
|
|
else (v) = 0;\
|
|
} while(0)
|
|
|
|
|
|
#define ELSE_IF_STATE_CHECK_MARK(stk) \
|
|
else if ((stk)->type == STK_STATE_CHECK_MARK) { \
|
|
int x = STATE_CHECK_POS(stk->u.state.pstr, stk->u.state.state_check);\
|
|
state_check_buff[x/8] |= (1<<(x%8)); \
|
|
}
|
|
|
|
#define STACK_PUSH(stack_type,pat,s,sprev,keep) do {\
|
|
STACK_ENSURE(1);\
|
|
stk->type = (stack_type);\
|
|
stk->u.state.pcode = (pat);\
|
|
stk->u.state.pstr = (s);\
|
|
stk->u.state.pstr_prev = (sprev);\
|
|
stk->u.state.state_check = 0;\
|
|
stk->u.state.pkeep = (keep);\
|
|
STACK_INC;\
|
|
} while(0)
|
|
|
|
#define STACK_PUSH_ENSURED(stack_type,pat) do {\
|
|
stk->type = (stack_type);\
|
|
stk->u.state.pcode = (pat);\
|
|
stk->u.state.state_check = 0;\
|
|
STACK_INC;\
|
|
} while(0)
|
|
|
|
#define STACK_PUSH_ALT_WITH_STATE_CHECK(pat,s,sprev,snum,keep) do {\
|
|
STACK_ENSURE(1);\
|
|
stk->type = STK_ALT;\
|
|
stk->u.state.pcode = (pat);\
|
|
stk->u.state.pstr = (s);\
|
|
stk->u.state.pstr_prev = (sprev);\
|
|
stk->u.state.state_check = ((state_check_buff != NULL) ? (snum) : 0);\
|
|
stk->u.state.pkeep = (keep);\
|
|
STACK_INC;\
|
|
} while(0)
|
|
|
|
#define STACK_PUSH_STATE_CHECK(s,snum) do {\
|
|
if (state_check_buff != NULL) {\
|
|
STACK_ENSURE(1);\
|
|
stk->type = STK_STATE_CHECK_MARK;\
|
|
stk->u.state.pstr = (s);\
|
|
stk->u.state.state_check = (snum);\
|
|
STACK_INC;\
|
|
}\
|
|
} while(0)
|
|
|
|
#else /* USE_COMBINATION_EXPLOSION_CHECK */
|
|
|
|
#define ELSE_IF_STATE_CHECK_MARK(stk)
|
|
|
|
#define STACK_PUSH(stack_type,pat,s,sprev,keep) do {\
|
|
STACK_ENSURE(1);\
|
|
stk->type = (stack_type);\
|
|
stk->u.state.pcode = (pat);\
|
|
stk->u.state.pstr = (s);\
|
|
stk->u.state.pstr_prev = (sprev);\
|
|
stk->u.state.pkeep = (keep);\
|
|
STACK_INC;\
|
|
} while(0)
|
|
|
|
#define STACK_PUSH_ENSURED(stack_type,pat) do {\
|
|
stk->type = (stack_type);\
|
|
stk->u.state.pcode = (pat);\
|
|
STACK_INC;\
|
|
} while(0)
|
|
#endif /* USE_COMBINATION_EXPLOSION_CHECK */
|
|
|
|
#define STACK_PUSH_ALT(pat,s,sprev,keep) STACK_PUSH(STK_ALT,pat,s,sprev,keep)
|
|
#define STACK_PUSH_POS(s,sprev,keep) STACK_PUSH(STK_POS,NULL_UCHARP,s,sprev,keep)
|
|
#define STACK_PUSH_POS_NOT(pat,s,sprev,keep) STACK_PUSH(STK_POS_NOT,pat,s,sprev,keep)
|
|
#define STACK_PUSH_STOP_BT STACK_PUSH_TYPE(STK_STOP_BT)
|
|
#define STACK_PUSH_LOOK_BEHIND_NOT(pat,s,sprev,keep) \
|
|
STACK_PUSH(STK_LOOK_BEHIND_NOT,pat,s,sprev,keep)
|
|
|
|
#define STACK_PUSH_REPEAT(id, pat) do {\
|
|
STACK_ENSURE(1);\
|
|
stk->type = STK_REPEAT;\
|
|
stk->u.repeat.num = (id);\
|
|
stk->u.repeat.pcode = (pat);\
|
|
stk->u.repeat.count = 0;\
|
|
STACK_INC;\
|
|
} while(0)
|
|
|
|
#define STACK_PUSH_REPEAT_INC(sindex) do {\
|
|
STACK_ENSURE(1);\
|
|
stk->type = STK_REPEAT_INC;\
|
|
stk->u.repeat_inc.si = (sindex);\
|
|
STACK_INC;\
|
|
} while(0)
|
|
|
|
#define STACK_PUSH_MEM_START(mnum, s) do {\
|
|
STACK_ENSURE(1);\
|
|
stk->type = STK_MEM_START;\
|
|
stk->u.mem.num = (mnum);\
|
|
stk->u.mem.pstr = (s);\
|
|
stk->u.mem.start = mem_start_stk[mnum];\
|
|
stk->u.mem.end = mem_end_stk[mnum];\
|
|
mem_start_stk[mnum] = GET_STACK_INDEX(stk);\
|
|
mem_end_stk[mnum] = INVALID_STACK_INDEX;\
|
|
STACK_INC;\
|
|
} while(0)
|
|
|
|
#define STACK_PUSH_MEM_END(mnum, s) do {\
|
|
STACK_ENSURE(1);\
|
|
stk->type = STK_MEM_END;\
|
|
stk->u.mem.num = (mnum);\
|
|
stk->u.mem.pstr = (s);\
|
|
stk->u.mem.start = mem_start_stk[mnum];\
|
|
stk->u.mem.end = mem_end_stk[mnum];\
|
|
mem_end_stk[mnum] = GET_STACK_INDEX(stk);\
|
|
STACK_INC;\
|
|
} while(0)
|
|
|
|
#define STACK_PUSH_MEM_END_MARK(mnum) do {\
|
|
STACK_ENSURE(1);\
|
|
stk->type = STK_MEM_END_MARK;\
|
|
stk->u.mem.num = (mnum);\
|
|
STACK_INC;\
|
|
} while(0)
|
|
|
|
#define STACK_GET_MEM_START(mnum, k) do {\
|
|
int level = 0;\
|
|
k = stk;\
|
|
while (k > stk_base) {\
|
|
k--;\
|
|
if ((k->type & STK_MASK_MEM_END_OR_MARK) != 0 \
|
|
&& k->u.mem.num == (mnum)) {\
|
|
level++;\
|
|
}\
|
|
else if (k->type == STK_MEM_START && k->u.mem.num == (mnum)) {\
|
|
if (level == 0) break;\
|
|
level--;\
|
|
}\
|
|
}\
|
|
} while(0)
|
|
|
|
#define STACK_GET_MEM_RANGE(k, mnum, start, end) do {\
|
|
int level = 0;\
|
|
while (k < stk) {\
|
|
if (k->type == STK_MEM_START && k->u.mem.num == (mnum)) {\
|
|
if (level == 0) (start) = k->u.mem.pstr;\
|
|
level++;\
|
|
}\
|
|
else if (k->type == STK_MEM_END && k->u.mem.num == (mnum)) {\
|
|
level--;\
|
|
if (level == 0) {\
|
|
(end) = k->u.mem.pstr;\
|
|
break;\
|
|
}\
|
|
}\
|
|
k++;\
|
|
}\
|
|
} while(0)
|
|
|
|
#define STACK_PUSH_NULL_CHECK_START(cnum, s) do {\
|
|
STACK_ENSURE(1);\
|
|
stk->type = STK_NULL_CHECK_START;\
|
|
stk->u.null_check.num = (cnum);\
|
|
stk->u.null_check.pstr = (s);\
|
|
STACK_INC;\
|
|
} while(0)
|
|
|
|
#define STACK_PUSH_NULL_CHECK_END(cnum) do {\
|
|
STACK_ENSURE(1);\
|
|
stk->type = STK_NULL_CHECK_END;\
|
|
stk->u.null_check.num = (cnum);\
|
|
STACK_INC;\
|
|
} while(0)
|
|
|
|
#define STACK_PUSH_CALL_FRAME(pat) do {\
|
|
STACK_ENSURE(1);\
|
|
stk->type = STK_CALL_FRAME;\
|
|
stk->u.call_frame.ret_addr = (pat);\
|
|
STACK_INC;\
|
|
} while(0)
|
|
|
|
#define STACK_PUSH_RETURN do {\
|
|
STACK_ENSURE(1);\
|
|
stk->type = STK_RETURN;\
|
|
STACK_INC;\
|
|
} while(0)
|
|
|
|
|
|
#ifdef ONIG_DEBUG
|
|
#define STACK_BASE_CHECK(p, at) \
|
|
if ((p) < stk_base) {\
|
|
fprintf(stderr, "at %s\n", at);\
|
|
goto stack_error;\
|
|
}
|
|
#else
|
|
#define STACK_BASE_CHECK(p, at)
|
|
#endif
|
|
|
|
#define STACK_POP_ONE do {\
|
|
stk--;\
|
|
STACK_BASE_CHECK(stk, "STACK_POP_ONE"); \
|
|
} while(0)
|
|
|
|
#define STACK_POP do {\
|
|
switch (pop_level) {\
|
|
case STACK_POP_LEVEL_FREE:\
|
|
while (1) {\
|
|
stk--;\
|
|
STACK_BASE_CHECK(stk, "STACK_POP"); \
|
|
if ((stk->type & STK_MASK_POP_USED) != 0) break;\
|
|
ELSE_IF_STATE_CHECK_MARK(stk);\
|
|
}\
|
|
break;\
|
|
case STACK_POP_LEVEL_MEM_START:\
|
|
while (1) {\
|
|
stk--;\
|
|
STACK_BASE_CHECK(stk, "STACK_POP 2"); \
|
|
if ((stk->type & STK_MASK_POP_USED) != 0) break;\
|
|
else if (stk->type == STK_MEM_START) {\
|
|
mem_start_stk[stk->u.mem.num] = stk->u.mem.start;\
|
|
mem_end_stk[stk->u.mem.num] = stk->u.mem.end;\
|
|
}\
|
|
ELSE_IF_STATE_CHECK_MARK(stk);\
|
|
}\
|
|
break;\
|
|
default:\
|
|
while (1) {\
|
|
stk--;\
|
|
STACK_BASE_CHECK(stk, "STACK_POP 3"); \
|
|
if ((stk->type & STK_MASK_POP_USED) != 0) break;\
|
|
else if (stk->type == STK_MEM_START) {\
|
|
mem_start_stk[stk->u.mem.num] = stk->u.mem.start;\
|
|
mem_end_stk[stk->u.mem.num] = stk->u.mem.end;\
|
|
}\
|
|
else if (stk->type == STK_REPEAT_INC) {\
|
|
STACK_AT(stk->u.repeat_inc.si)->u.repeat.count--;\
|
|
}\
|
|
else if (stk->type == STK_MEM_END) {\
|
|
mem_start_stk[stk->u.mem.num] = stk->u.mem.start;\
|
|
mem_end_stk[stk->u.mem.num] = stk->u.mem.end;\
|
|
}\
|
|
ELSE_IF_STATE_CHECK_MARK(stk);\
|
|
}\
|
|
break;\
|
|
}\
|
|
} while(0)
|
|
|
|
#define STACK_POP_TIL_POS_NOT do {\
|
|
while (1) {\
|
|
stk--;\
|
|
STACK_BASE_CHECK(stk, "STACK_POP_TIL_POS_NOT"); \
|
|
if (stk->type == STK_POS_NOT) break;\
|
|
else if (stk->type == STK_MEM_START) {\
|
|
mem_start_stk[stk->u.mem.num] = stk->u.mem.start;\
|
|
mem_end_stk[stk->u.mem.num] = stk->u.mem.end;\
|
|
}\
|
|
else if (stk->type == STK_REPEAT_INC) {\
|
|
STACK_AT(stk->u.repeat_inc.si)->u.repeat.count--;\
|
|
}\
|
|
else if (stk->type == STK_MEM_END) {\
|
|
mem_start_stk[stk->u.mem.num] = stk->u.mem.start;\
|
|
mem_end_stk[stk->u.mem.num] = stk->u.mem.end;\
|
|
}\
|
|
ELSE_IF_STATE_CHECK_MARK(stk);\
|
|
}\
|
|
} while(0)
|
|
|
|
#define STACK_POP_TIL_LOOK_BEHIND_NOT do {\
|
|
while (1) {\
|
|
stk--;\
|
|
STACK_BASE_CHECK(stk, "STACK_POP_TIL_LOOK_BEHIND_NOT"); \
|
|
if (stk->type == STK_LOOK_BEHIND_NOT) break;\
|
|
else if (stk->type == STK_MEM_START) {\
|
|
mem_start_stk[stk->u.mem.num] = stk->u.mem.start;\
|
|
mem_end_stk[stk->u.mem.num] = stk->u.mem.end;\
|
|
}\
|
|
else if (stk->type == STK_REPEAT_INC) {\
|
|
STACK_AT(stk->u.repeat_inc.si)->u.repeat.count--;\
|
|
}\
|
|
else if (stk->type == STK_MEM_END) {\
|
|
mem_start_stk[stk->u.mem.num] = stk->u.mem.start;\
|
|
mem_end_stk[stk->u.mem.num] = stk->u.mem.end;\
|
|
}\
|
|
ELSE_IF_STATE_CHECK_MARK(stk);\
|
|
}\
|
|
} while(0)
|
|
|
|
#define STACK_POS_END(k) do {\
|
|
k = stk;\
|
|
while (1) {\
|
|
k--;\
|
|
STACK_BASE_CHECK(k, "STACK_POS_END"); \
|
|
if (IS_TO_VOID_TARGET(k)) {\
|
|
k->type = STK_VOID;\
|
|
}\
|
|
else if (k->type == STK_POS) {\
|
|
k->type = STK_VOID;\
|
|
break;\
|
|
}\
|
|
}\
|
|
} while(0)
|
|
|
|
#define STACK_STOP_BT_END do {\
|
|
OnigStackType *k = stk;\
|
|
while (1) {\
|
|
k--;\
|
|
STACK_BASE_CHECK(k, "STACK_STOP_BT_END"); \
|
|
if (IS_TO_VOID_TARGET(k)) {\
|
|
k->type = STK_VOID;\
|
|
}\
|
|
else if (k->type == STK_STOP_BT) {\
|
|
k->type = STK_VOID;\
|
|
break;\
|
|
}\
|
|
}\
|
|
} while(0)
|
|
|
|
#define STACK_NULL_CHECK(isnull,id,s) do {\
|
|
OnigStackType* k = stk;\
|
|
while (1) {\
|
|
k--;\
|
|
STACK_BASE_CHECK(k, "STACK_NULL_CHECK"); \
|
|
if (k->type == STK_NULL_CHECK_START) {\
|
|
if (k->u.null_check.num == (id)) {\
|
|
(isnull) = (k->u.null_check.pstr == (s));\
|
|
break;\
|
|
}\
|
|
}\
|
|
}\
|
|
} while(0)
|
|
|
|
#define STACK_NULL_CHECK_REC(isnull,id,s) do {\
|
|
int level = 0;\
|
|
OnigStackType* k = stk;\
|
|
while (1) {\
|
|
k--;\
|
|
STACK_BASE_CHECK(k, "STACK_NULL_CHECK_REC"); \
|
|
if (k->type == STK_NULL_CHECK_START) {\
|
|
if (k->u.null_check.num == (id)) {\
|
|
if (level == 0) {\
|
|
(isnull) = (k->u.null_check.pstr == (s));\
|
|
break;\
|
|
}\
|
|
else level--;\
|
|
}\
|
|
}\
|
|
else if (k->type == STK_NULL_CHECK_END) {\
|
|
level++;\
|
|
}\
|
|
}\
|
|
} while(0)
|
|
|
|
#define STACK_NULL_CHECK_MEMST(isnull,id,s,reg) do {\
|
|
OnigStackType* k = stk;\
|
|
while (1) {\
|
|
k--;\
|
|
STACK_BASE_CHECK(k, "STACK_NULL_CHECK_MEMST"); \
|
|
if (k->type == STK_NULL_CHECK_START) {\
|
|
if (k->u.null_check.num == (id)) {\
|
|
if (k->u.null_check.pstr != (s)) {\
|
|
(isnull) = 0;\
|
|
break;\
|
|
}\
|
|
else {\
|
|
UChar* endp;\
|
|
(isnull) = 1;\
|
|
while (k < stk) {\
|
|
if (k->type == STK_MEM_START) {\
|
|
if (k->u.mem.end == INVALID_STACK_INDEX) {\
|
|
(isnull) = 0; break;\
|
|
}\
|
|
if (BIT_STATUS_AT(reg->bt_mem_end, k->u.mem.num))\
|
|
endp = STACK_AT(k->u.mem.end)->u.mem.pstr;\
|
|
else\
|
|
endp = (UChar* )k->u.mem.end;\
|
|
if (STACK_AT(k->u.mem.start)->u.mem.pstr != endp) {\
|
|
(isnull) = 0; break;\
|
|
}\
|
|
else if (endp != s) {\
|
|
(isnull) = -1; /* empty, but position changed */ \
|
|
}\
|
|
}\
|
|
k++;\
|
|
}\
|
|
break;\
|
|
}\
|
|
}\
|
|
}\
|
|
}\
|
|
} while(0)
|
|
|
|
#define STACK_NULL_CHECK_MEMST_REC(isnull,id,s,reg) do {\
|
|
int level = 0;\
|
|
OnigStackType* k = stk;\
|
|
while (1) {\
|
|
k--;\
|
|
STACK_BASE_CHECK(k, "STACK_NULL_CHECK_MEMST_REC"); \
|
|
if (k->type == STK_NULL_CHECK_START) {\
|
|
if (k->u.null_check.num == (id)) {\
|
|
if (level == 0) {\
|
|
if (k->u.null_check.pstr != (s)) {\
|
|
(isnull) = 0;\
|
|
break;\
|
|
}\
|
|
else {\
|
|
UChar* endp;\
|
|
(isnull) = 1;\
|
|
while (k < stk) {\
|
|
if (k->type == STK_MEM_START) {\
|
|
if (k->u.mem.end == INVALID_STACK_INDEX) {\
|
|
(isnull) = 0; break;\
|
|
}\
|
|
if (BIT_STATUS_AT(reg->bt_mem_end, k->u.mem.num))\
|
|
endp = STACK_AT(k->u.mem.end)->u.mem.pstr;\
|
|
else\
|
|
endp = (UChar* )k->u.mem.end;\
|
|
if (STACK_AT(k->u.mem.start)->u.mem.pstr != endp) {\
|
|
(isnull) = 0; break;\
|
|
}\
|
|
else if (endp != s) {\
|
|
(isnull) = -1; /* empty, but position changed */ \
|
|
}\
|
|
}\
|
|
k++;\
|
|
}\
|
|
break;\
|
|
}\
|
|
}\
|
|
else {\
|
|
level--;\
|
|
}\
|
|
}\
|
|
}\
|
|
else if (k->type == STK_NULL_CHECK_END) {\
|
|
if (k->u.null_check.num == (id)) level++;\
|
|
}\
|
|
}\
|
|
} while(0)
|
|
|
|
#define STACK_GET_REPEAT(id, k) do {\
|
|
int level = 0;\
|
|
k = stk;\
|
|
while (1) {\
|
|
k--;\
|
|
STACK_BASE_CHECK(k, "STACK_GET_REPEAT"); \
|
|
if (k->type == STK_REPEAT) {\
|
|
if (level == 0) {\
|
|
if (k->u.repeat.num == (id)) {\
|
|
break;\
|
|
}\
|
|
}\
|
|
}\
|
|
else if (k->type == STK_CALL_FRAME) level--;\
|
|
else if (k->type == STK_RETURN) level++;\
|
|
}\
|
|
} while(0)
|
|
|
|
#define STACK_RETURN(addr) do {\
|
|
int level = 0;\
|
|
OnigStackType* k = stk;\
|
|
while (1) {\
|
|
k--;\
|
|
STACK_BASE_CHECK(k, "STACK_RETURN"); \
|
|
if (k->type == STK_CALL_FRAME) {\
|
|
if (level == 0) {\
|
|
(addr) = k->u.call_frame.ret_addr;\
|
|
break;\
|
|
}\
|
|
else level--;\
|
|
}\
|
|
else if (k->type == STK_RETURN)\
|
|
level++;\
|
|
}\
|
|
} while(0)
|
|
|
|
|
|
#define STRING_CMP(s1,s2,len) do {\
|
|
while (len-- > 0) {\
|
|
if (*s1++ != *s2++) goto fail;\
|
|
}\
|
|
} while(0)
|
|
|
|
#define STRING_CMP_IC(case_fold_flag,s1,ps2,len,text_end) do {\
|
|
if (string_cmp_ic(encode, case_fold_flag, s1, ps2, len, text_end) == 0) \
|
|
goto fail; \
|
|
} while(0)
|
|
|
|
static int string_cmp_ic(OnigEncoding enc, int case_fold_flag,
|
|
UChar* s1, UChar** ps2, OnigDistance mblen, const UChar* text_end)
|
|
{
|
|
UChar buf1[ONIGENC_MBC_CASE_FOLD_MAXLEN];
|
|
UChar buf2[ONIGENC_MBC_CASE_FOLD_MAXLEN];
|
|
UChar *p1, *p2, *end1, *s2;
|
|
int len1, len2;
|
|
|
|
s2 = *ps2;
|
|
end1 = s1 + mblen;
|
|
while (s1 < end1) {
|
|
len1 = ONIGENC_MBC_CASE_FOLD(enc, case_fold_flag, &s1, text_end, buf1);
|
|
len2 = ONIGENC_MBC_CASE_FOLD(enc, case_fold_flag, &s2, text_end, buf2);
|
|
if (len1 != len2) return 0;
|
|
p1 = buf1;
|
|
p2 = buf2;
|
|
while (len1-- > 0) {
|
|
if (*p1 != *p2) return 0;
|
|
p1++;
|
|
p2++;
|
|
}
|
|
}
|
|
|
|
*ps2 = s2;
|
|
return 1;
|
|
}
|
|
|
|
#define STRING_CMP_VALUE(s1,s2,len,is_fail) do {\
|
|
is_fail = 0;\
|
|
while (len-- > 0) {\
|
|
if (*s1++ != *s2++) {\
|
|
is_fail = 1; break;\
|
|
}\
|
|
}\
|
|
} while(0)
|
|
|
|
#define STRING_CMP_VALUE_IC(case_fold_flag,s1,ps2,len,text_end,is_fail) do {\
|
|
if (string_cmp_ic(encode, case_fold_flag, s1, ps2, len, text_end) == 0) \
|
|
is_fail = 1; \
|
|
else \
|
|
is_fail = 0; \
|
|
} while(0)
|
|
|
|
|
|
#define IS_EMPTY_STR (str == end)
|
|
#define ON_STR_BEGIN(s) ((s) == str)
|
|
#define ON_STR_END(s) ((s) == end)
|
|
#ifdef USE_MATCH_RANGE_MUST_BE_INSIDE_OF_SPECIFIED_RANGE
|
|
#define DATA_ENSURE_CHECK1 (s < right_range)
|
|
#define DATA_ENSURE_CHECK(n) (s + (n) <= right_range)
|
|
#define DATA_ENSURE(n) if (s + (n) > right_range) goto fail
|
|
#else
|
|
#define DATA_ENSURE_CHECK1 (s < end)
|
|
#define DATA_ENSURE_CHECK(n) (s + (n) <= end)
|
|
#define DATA_ENSURE(n) if (s + (n) > end) goto fail
|
|
#endif /* USE_MATCH_RANGE_MUST_BE_INSIDE_OF_SPECIFIED_RANGE */
|
|
|
|
|
|
#ifdef USE_CAPTURE_HISTORY
|
|
static int
|
|
make_capture_history_tree(OnigCaptureTreeNode* node, OnigStackType** kp,
|
|
OnigStackType* stk_top, UChar* str, regex_t* reg)
|
|
{
|
|
int n, r;
|
|
OnigCaptureTreeNode* child;
|
|
OnigStackType* k = *kp;
|
|
|
|
while (k < stk_top) {
|
|
if (k->type == STK_MEM_START) {
|
|
n = k->u.mem.num;
|
|
if (n <= ONIG_MAX_CAPTURE_HISTORY_GROUP &&
|
|
BIT_STATUS_AT(reg->capture_history, n) != 0) {
|
|
child = history_node_new();
|
|
CHECK_NULL_RETURN_MEMERR(child);
|
|
child->group = n;
|
|
child->beg = k->u.mem.pstr - str;
|
|
r = history_tree_add_child(node, child);
|
|
if (r != 0) {
|
|
history_tree_free(child);
|
|
return r;
|
|
}
|
|
*kp = (k + 1);
|
|
r = make_capture_history_tree(child, kp, stk_top, str, reg);
|
|
if (r != 0) return r;
|
|
|
|
k = *kp;
|
|
child->end = k->u.mem.pstr - str;
|
|
}
|
|
}
|
|
else if (k->type == STK_MEM_END) {
|
|
if (k->u.mem.num == node->group) {
|
|
node->end = k->u.mem.pstr - str;
|
|
*kp = k;
|
|
return 0;
|
|
}
|
|
}
|
|
k++;
|
|
}
|
|
|
|
return 1; /* 1: root node ending. */
|
|
}
|
|
#endif /* USE_CAPTURE_HISTORY */
|
|
|
|
#ifdef USE_BACKREF_WITH_LEVEL
|
|
static int mem_is_in_memp(int mem, int num, UChar* memp)
|
|
{
|
|
int i;
|
|
MemNumType m;
|
|
|
|
for (i = 0; i < num; i++) {
|
|
GET_MEMNUM_INC(m, memp);
|
|
if (mem == (int )m) return 1;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int backref_match_at_nested_level(regex_t* reg
|
|
, OnigStackType* top, OnigStackType* stk_base
|
|
, int ignore_case, int case_fold_flag
|
|
, int nest, int mem_num, UChar* memp, UChar** s, const UChar* send)
|
|
{
|
|
UChar *ss, *p, *pstart, *pend = NULL_UCHARP;
|
|
int level;
|
|
OnigStackType* k;
|
|
|
|
level = 0;
|
|
k = top;
|
|
k--;
|
|
while (k >= stk_base) {
|
|
if (k->type == STK_CALL_FRAME) {
|
|
level--;
|
|
}
|
|
else if (k->type == STK_RETURN) {
|
|
level++;
|
|
}
|
|
else if (level == nest) {
|
|
if (k->type == STK_MEM_START) {
|
|
if (mem_is_in_memp(k->u.mem.num, mem_num, memp)) {
|
|
pstart = k->u.mem.pstr;
|
|
if (pend != NULL_UCHARP) {
|
|
if (pend - pstart > send - *s) return 0; /* or goto next_mem; */
|
|
p = pstart;
|
|
ss = *s;
|
|
|
|
if (ignore_case != 0) {
|
|
if (string_cmp_ic(reg->enc, case_fold_flag,
|
|
pstart, &ss, pend - pstart, send) == 0)
|
|
return 0; /* or goto next_mem; */
|
|
}
|
|
else {
|
|
while (p < pend) {
|
|
if (*p++ != *ss++) return 0; /* or goto next_mem; */
|
|
}
|
|
}
|
|
|
|
*s = ss;
|
|
return 1;
|
|
}
|
|
}
|
|
}
|
|
else if (k->type == STK_MEM_END) {
|
|
if (mem_is_in_memp(k->u.mem.num, mem_num, memp)) {
|
|
pend = k->u.mem.pstr;
|
|
}
|
|
}
|
|
}
|
|
k--;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
#endif /* USE_BACKREF_WITH_LEVEL */
|
|
|
|
|
|
#ifdef ONIG_DEBUG_STATISTICS
|
|
|
|
#define USE_TIMEOFDAY
|
|
|
|
#ifdef USE_TIMEOFDAY
|
|
#ifdef HAVE_SYS_TIME_H
|
|
#include <sys/time.h>
|
|
#endif
|
|
#ifdef HAVE_UNISTD_H
|
|
#include <unistd.h>
|
|
#endif
|
|
static struct timeval ts, te;
|
|
#define GETTIME(t) gettimeofday(&(t), (struct timezone* )0)
|
|
#define TIMEDIFF(te,ts) (((te).tv_usec - (ts).tv_usec) + \
|
|
(((te).tv_sec - (ts).tv_sec)*1000000))
|
|
#else /* USE_TIMEOFDAY */
|
|
#ifdef HAVE_SYS_TIMES_H
|
|
#include <sys/times.h>
|
|
#endif
|
|
static struct tms ts, te;
|
|
#define GETTIME(t) times(&(t))
|
|
#define TIMEDIFF(te,ts) ((te).tms_utime - (ts).tms_utime)
|
|
#endif /* USE_TIMEOFDAY */
|
|
|
|
static int OpCounter[256];
|
|
static int OpPrevCounter[256];
|
|
static unsigned long OpTime[256];
|
|
static int OpCurr = OP_FINISH;
|
|
static int OpPrevTarget = OP_FAIL;
|
|
static int MaxStackDepth = 0;
|
|
|
|
#define MOP_IN(opcode) do {\
|
|
if (opcode == OpPrevTarget) OpPrevCounter[OpCurr]++;\
|
|
OpCurr = opcode;\
|
|
OpCounter[opcode]++;\
|
|
GETTIME(ts);\
|
|
} while(0)
|
|
|
|
#define MOP_OUT do {\
|
|
GETTIME(te);\
|
|
OpTime[OpCurr] += TIMEDIFF(te, ts);\
|
|
} while(0)
|
|
|
|
extern void
|
|
onig_statistics_init(void)
|
|
{
|
|
int i;
|
|
for (i = 0; i < 256; i++) {
|
|
OpCounter[i] = OpPrevCounter[i] = 0; OpTime[i] = 0;
|
|
}
|
|
MaxStackDepth = 0;
|
|
}
|
|
|
|
extern void
|
|
onig_print_statistics(FILE* f)
|
|
{
|
|
int i;
|
|
fprintf(f, " count prev time\n");
|
|
for (i = 0; OnigOpInfo[i].opcode >= 0; i++) {
|
|
fprintf(f, "%8d: %8d: %10ld: %s\n",
|
|
OpCounter[i], OpPrevCounter[i], OpTime[i], OnigOpInfo[i].name);
|
|
}
|
|
fprintf(f, "\nmax stack depth: %d\n", MaxStackDepth);
|
|
}
|
|
|
|
#define STACK_INC do {\
|
|
stk++;\
|
|
if (stk - stk_base > MaxStackDepth) \
|
|
MaxStackDepth = stk - stk_base;\
|
|
} while(0)
|
|
|
|
#else /* ONIG_DEBUG_STATISTICS */
|
|
#define STACK_INC stk++
|
|
|
|
#define MOP_IN(opcode)
|
|
#define MOP_OUT
|
|
#endif /* ONIG_DEBUG_STATISTICS */
|
|
|
|
|
|
|
|
/* matching region of POSIX API */
|
|
typedef int regoff_t;
|
|
|
|
typedef struct {
|
|
regoff_t rm_so;
|
|
regoff_t rm_eo;
|
|
} posix_regmatch_t;
|
|
|
|
void onig_print_compiled_byte_code(FILE* f, UChar* bp, UChar* bpend, UChar** nextp,
|
|
OnigEncoding enc);
|
|
|
|
/* match data(str - end) from position (sstart). */
|
|
/* if sstart == str then set sprev to NULL. */
|
|
static OnigPosition
|
|
match_at(regex_t* reg, const UChar* str, const UChar* end,
|
|
#ifdef USE_MATCH_RANGE_MUST_BE_INSIDE_OF_SPECIFIED_RANGE
|
|
const UChar* right_range,
|
|
#endif
|
|
const UChar* sstart, UChar* sprev, OnigMatchArg* msa)
|
|
{
|
|
static const UChar FinishCode[] = { OP_FINISH };
|
|
|
|
int i, num_mem, pop_level;
|
|
ptrdiff_t n, best_len;
|
|
LengthType tlen, tlen2;
|
|
MemNumType mem;
|
|
RelAddrType addr;
|
|
OnigOptionType option = reg->options;
|
|
OnigEncoding encode = reg->enc;
|
|
OnigCaseFoldType case_fold_flag = reg->case_fold_flag;
|
|
UChar *s, *q, *sbegin;
|
|
UChar *p = reg->p;
|
|
UChar *pkeep;
|
|
char *alloca_base;
|
|
OnigStackType *stk_alloc, *stk_base, *stk, *stk_end;
|
|
OnigStackType *stkp; /* used as any purpose. */
|
|
OnigStackIndex si;
|
|
OnigStackIndex *repeat_stk;
|
|
OnigStackIndex *mem_start_stk, *mem_end_stk;
|
|
#ifdef USE_COMBINATION_EXPLOSION_CHECK
|
|
int scv;
|
|
unsigned char* state_check_buff = msa->state_check_buff;
|
|
int num_comb_exp_check = reg->num_comb_exp_check;
|
|
#endif
|
|
|
|
#ifdef USE_SUBEXP_CALL
|
|
/* Stack #0 is used to store the pattern itself and used for (?R), \g<0>, etc. */
|
|
n = reg->num_repeat + (reg->num_mem + 1) * 2;
|
|
|
|
STACK_INIT(alloca_base, n, INIT_MATCH_STACK_SIZE);
|
|
pop_level = reg->stack_pop_level;
|
|
num_mem = reg->num_mem;
|
|
repeat_stk = (OnigStackIndex* )alloca_base;
|
|
|
|
mem_start_stk = (OnigStackIndex* )(repeat_stk + reg->num_repeat);
|
|
mem_end_stk = mem_start_stk + (num_mem + 1);
|
|
for (i = 0; i <= num_mem; i++) {
|
|
mem_start_stk[i] = mem_end_stk[i] = INVALID_STACK_INDEX;
|
|
}
|
|
#else /* USE_SUBEXP_CALL */
|
|
/* Stack #0 not is used. */
|
|
n = reg->num_repeat + reg->num_mem * 2;
|
|
|
|
STACK_INIT(alloca_base, n, INIT_MATCH_STACK_SIZE);
|
|
pop_level = reg->stack_pop_level;
|
|
num_mem = reg->num_mem;
|
|
repeat_stk = (OnigStackIndex* )alloca_base;
|
|
|
|
mem_start_stk = (OnigStackIndex* )(repeat_stk + reg->num_repeat);
|
|
mem_end_stk = mem_start_stk + num_mem;
|
|
mem_start_stk--; /* for index start from 1,
|
|
mem_start_stk[1]..mem_start_stk[num_mem] */
|
|
mem_end_stk--; /* for index start from 1,
|
|
mem_end_stk[1]..mem_end_stk[num_mem] */
|
|
for (i = 1; i <= num_mem; i++) {
|
|
mem_start_stk[i] = mem_end_stk[i] = INVALID_STACK_INDEX;
|
|
}
|
|
#endif /* USE_SUBEXP_CALL */
|
|
|
|
#ifdef ONIG_DEBUG_MATCH
|
|
fprintf(stderr, "match_at: str: %"PRIdPTR" (%p), end: %"PRIdPTR" (%p), start: %"PRIdPTR" (%p), sprev: %"PRIdPTR" (%p)\n",
|
|
(intptr_t)str, str, (intptr_t)end, end, (intptr_t)sstart, sstart, (intptr_t)sprev, sprev);
|
|
fprintf(stderr, "size: %d, start offset: %d\n",
|
|
(int )(end - str), (int )(sstart - str));
|
|
#endif
|
|
|
|
STACK_PUSH_ENSURED(STK_ALT, (UChar *)FinishCode); /* bottom stack */
|
|
best_len = ONIG_MISMATCH;
|
|
s = (UChar* )sstart;
|
|
pkeep = (UChar* )sstart;
|
|
while (1) {
|
|
#ifdef ONIG_DEBUG_MATCH
|
|
if (s) {
|
|
UChar *q, *bp, buf[50];
|
|
int len;
|
|
fprintf(stderr, "%4d> \"", (int )(s - str));
|
|
bp = buf;
|
|
if (*p != OP_FINISH) { /* s may not be a valid pointer if OP_FINISH. */
|
|
for (i = 0, q = s; i < 7 && q < end; i++) {
|
|
len = enclen(encode, q, end);
|
|
while (len-- > 0) *bp++ = *q++;
|
|
}
|
|
}
|
|
if (q < end) { xmemcpy(bp, "...\"", 4); bp += 4; }
|
|
else { xmemcpy(bp, "\"", 1); bp += 1; }
|
|
*bp = 0;
|
|
fputs((char* )buf, stderr);
|
|
for (i = 0; i < 20 - (bp - buf); i++) fputc(' ', stderr);
|
|
onig_print_compiled_byte_code(stderr, p, p + strlen((char *)p), NULL, encode);
|
|
fprintf(stderr, "\n");
|
|
}
|
|
#endif
|
|
|
|
sbegin = s;
|
|
switch (*p++) {
|
|
case OP_END: MOP_IN(OP_END);
|
|
n = s - sstart;
|
|
if (n > best_len) {
|
|
OnigRegion* region;
|
|
#ifdef USE_FIND_LONGEST_SEARCH_ALL_OF_RANGE
|
|
if (IS_FIND_LONGEST(option)) {
|
|
if (n > msa->best_len) {
|
|
msa->best_len = n;
|
|
msa->best_s = (UChar* )sstart;
|
|
}
|
|
else
|
|
goto end_best_len;
|
|
}
|
|
#endif
|
|
best_len = n;
|
|
region = msa->region;
|
|
if (region) {
|
|
#ifdef USE_POSIX_API_REGION_OPTION
|
|
if (IS_POSIX_REGION(msa->options)) {
|
|
posix_regmatch_t* rmt = (posix_regmatch_t* )region;
|
|
|
|
rmt[0].rm_so = (regoff_t )(((pkeep > s) ? s : pkeep) - str);
|
|
rmt[0].rm_eo = (regoff_t )(s - str);
|
|
for (i = 1; i <= num_mem; i++) {
|
|
if (mem_end_stk[i] != INVALID_STACK_INDEX) {
|
|
if (BIT_STATUS_AT(reg->bt_mem_start, i))
|
|
rmt[i].rm_so = (regoff_t )(STACK_AT(mem_start_stk[i])->u.mem.pstr - str);
|
|
else
|
|
rmt[i].rm_so = (regoff_t )((UChar* )((void* )(mem_start_stk[i])) - str);
|
|
|
|
rmt[i].rm_eo = (regoff_t )((BIT_STATUS_AT(reg->bt_mem_end, i)
|
|
? STACK_AT(mem_end_stk[i])->u.mem.pstr
|
|
: (UChar* )((void* )mem_end_stk[i])) - str);
|
|
}
|
|
else {
|
|
rmt[i].rm_so = rmt[i].rm_eo = ONIG_REGION_NOTPOS;
|
|
}
|
|
}
|
|
}
|
|
else {
|
|
#endif /* USE_POSIX_API_REGION_OPTION */
|
|
region->beg[0] = ((pkeep > s) ? s : pkeep) - str;
|
|
region->end[0] = s - str;
|
|
for (i = 1; i <= num_mem; i++) {
|
|
if (mem_end_stk[i] != INVALID_STACK_INDEX) {
|
|
if (BIT_STATUS_AT(reg->bt_mem_start, i))
|
|
region->beg[i] = STACK_AT(mem_start_stk[i])->u.mem.pstr - str;
|
|
else
|
|
region->beg[i] = (UChar* )((void* )mem_start_stk[i]) - str;
|
|
|
|
region->end[i] = (BIT_STATUS_AT(reg->bt_mem_end, i)
|
|
? STACK_AT(mem_end_stk[i])->u.mem.pstr
|
|
: (UChar* )((void* )mem_end_stk[i])) - str;
|
|
}
|
|
else {
|
|
region->beg[i] = region->end[i] = ONIG_REGION_NOTPOS;
|
|
}
|
|
}
|
|
|
|
#ifdef USE_CAPTURE_HISTORY
|
|
if (reg->capture_history != 0) {
|
|
int r;
|
|
OnigCaptureTreeNode* node;
|
|
|
|
if (IS_NULL(region->history_root)) {
|
|
region->history_root = node = history_node_new();
|
|
CHECK_NULL_RETURN_MEMERR(node);
|
|
}
|
|
else {
|
|
node = region->history_root;
|
|
history_tree_clear(node);
|
|
}
|
|
|
|
node->group = 0;
|
|
node->beg = ((pkeep > s) ? s : pkeep) - str;
|
|
node->end = s - str;
|
|
|
|
stkp = stk_base;
|
|
r = make_capture_history_tree(region->history_root, &stkp,
|
|
stk, (UChar* )str, reg);
|
|
if (r < 0) {
|
|
best_len = r; /* error code */
|
|
goto finish;
|
|
}
|
|
}
|
|
#endif /* USE_CAPTURE_HISTORY */
|
|
#ifdef USE_POSIX_API_REGION_OPTION
|
|
} /* else IS_POSIX_REGION() */
|
|
#endif
|
|
} /* if (region) */
|
|
} /* n > best_len */
|
|
|
|
#ifdef USE_FIND_LONGEST_SEARCH_ALL_OF_RANGE
|
|
end_best_len:
|
|
#endif
|
|
MOP_OUT;
|
|
|
|
if (IS_FIND_CONDITION(option)) {
|
|
if (IS_FIND_NOT_EMPTY(option) && s == sstart) {
|
|
best_len = ONIG_MISMATCH;
|
|
goto fail; /* for retry */
|
|
}
|
|
if (IS_FIND_LONGEST(option) && DATA_ENSURE_CHECK1) {
|
|
goto fail; /* for retry */
|
|
}
|
|
}
|
|
|
|
/* default behavior: return first-matching result. */
|
|
goto finish;
|
|
break;
|
|
|
|
case OP_EXACT1: MOP_IN(OP_EXACT1);
|
|
#if 0
|
|
DATA_ENSURE(1);
|
|
if (*p != *s) goto fail;
|
|
p++; s++;
|
|
#endif
|
|
if (*p != *s++) goto fail;
|
|
DATA_ENSURE(0);
|
|
p++;
|
|
MOP_OUT;
|
|
break;
|
|
|
|
case OP_EXACT1_IC: MOP_IN(OP_EXACT1_IC);
|
|
{
|
|
int len;
|
|
UChar *q, lowbuf[ONIGENC_MBC_CASE_FOLD_MAXLEN];
|
|
|
|
DATA_ENSURE(1);
|
|
len = ONIGENC_MBC_CASE_FOLD(encode,
|
|
/* DISABLE_CASE_FOLD_MULTI_CHAR(case_fold_flag), */
|
|
case_fold_flag,
|
|
&s, end, lowbuf);
|
|
DATA_ENSURE(0);
|
|
q = lowbuf;
|
|
while (len-- > 0) {
|
|
if (*p != *q) {
|
|
goto fail;
|
|
}
|
|
p++; q++;
|
|
}
|
|
}
|
|
MOP_OUT;
|
|
break;
|
|
|
|
case OP_EXACT2: MOP_IN(OP_EXACT2);
|
|
DATA_ENSURE(2);
|
|
if (*p != *s) goto fail;
|
|
p++; s++;
|
|
if (*p != *s) goto fail;
|
|
sprev = s;
|
|
p++; s++;
|
|
MOP_OUT;
|
|
continue;
|
|
break;
|
|
|
|
case OP_EXACT3: MOP_IN(OP_EXACT3);
|
|
DATA_ENSURE(3);
|
|
if (*p != *s) goto fail;
|
|
p++; s++;
|
|
if (*p != *s) goto fail;
|
|
p++; s++;
|
|
if (*p != *s) goto fail;
|
|
sprev = s;
|
|
p++; s++;
|
|
MOP_OUT;
|
|
continue;
|
|
break;
|
|
|
|
case OP_EXACT4: MOP_IN(OP_EXACT4);
|
|
DATA_ENSURE(4);
|
|
if (*p != *s) goto fail;
|
|
p++; s++;
|
|
if (*p != *s) goto fail;
|
|
p++; s++;
|
|
if (*p != *s) goto fail;
|
|
p++; s++;
|
|
if (*p != *s) goto fail;
|
|
sprev = s;
|
|
p++; s++;
|
|
MOP_OUT;
|
|
continue;
|
|
break;
|
|
|
|
case OP_EXACT5: MOP_IN(OP_EXACT5);
|
|
DATA_ENSURE(5);
|
|
if (*p != *s) goto fail;
|
|
p++; s++;
|
|
if (*p != *s) goto fail;
|
|
p++; s++;
|
|
if (*p != *s) goto fail;
|
|
p++; s++;
|
|
if (*p != *s) goto fail;
|
|
p++; s++;
|
|
if (*p != *s) goto fail;
|
|
sprev = s;
|
|
p++; s++;
|
|
MOP_OUT;
|
|
continue;
|
|
break;
|
|
|
|
case OP_EXACTN: MOP_IN(OP_EXACTN);
|
|
GET_LENGTH_INC(tlen, p);
|
|
DATA_ENSURE(tlen);
|
|
while (tlen-- > 0) {
|
|
if (*p++ != *s++) goto fail;
|
|
}
|
|
sprev = s - 1;
|
|
MOP_OUT;
|
|
continue;
|
|
break;
|
|
|
|
case OP_EXACTN_IC: MOP_IN(OP_EXACTN_IC);
|
|
{
|
|
int len;
|
|
UChar *q, *endp, lowbuf[ONIGENC_MBC_CASE_FOLD_MAXLEN];
|
|
|
|
GET_LENGTH_INC(tlen, p);
|
|
endp = p + tlen;
|
|
|
|
while (p < endp) {
|
|
sprev = s;
|
|
DATA_ENSURE(1);
|
|
len = ONIGENC_MBC_CASE_FOLD(encode,
|
|
/* DISABLE_CASE_FOLD_MULTI_CHAR(case_fold_flag), */
|
|
case_fold_flag,
|
|
&s, end, lowbuf);
|
|
DATA_ENSURE(0);
|
|
q = lowbuf;
|
|
while (len-- > 0) {
|
|
if (*p != *q) goto fail;
|
|
p++; q++;
|
|
}
|
|
}
|
|
}
|
|
|
|
MOP_OUT;
|
|
continue;
|
|
break;
|
|
|
|
case OP_EXACTMB2N1: MOP_IN(OP_EXACTMB2N1);
|
|
DATA_ENSURE(2);
|
|
if (*p != *s) goto fail;
|
|
p++; s++;
|
|
if (*p != *s) goto fail;
|
|
p++; s++;
|
|
MOP_OUT;
|
|
break;
|
|
|
|
case OP_EXACTMB2N2: MOP_IN(OP_EXACTMB2N2);
|
|
DATA_ENSURE(4);
|
|
if (*p != *s) goto fail;
|
|
p++; s++;
|
|
if (*p != *s) goto fail;
|
|
p++; s++;
|
|
sprev = s;
|
|
if (*p != *s) goto fail;
|
|
p++; s++;
|
|
if (*p != *s) goto fail;
|
|
p++; s++;
|
|
MOP_OUT;
|
|
continue;
|
|
break;
|
|
|
|
case OP_EXACTMB2N3: MOP_IN(OP_EXACTMB2N3);
|
|
DATA_ENSURE(6);
|
|
if (*p != *s) goto fail;
|
|
p++; s++;
|
|
if (*p != *s) goto fail;
|
|
p++; s++;
|
|
if (*p != *s) goto fail;
|
|
p++; s++;
|
|
if (*p != *s) goto fail;
|
|
p++; s++;
|
|
sprev = s;
|
|
if (*p != *s) goto fail;
|
|
p++; s++;
|
|
if (*p != *s) goto fail;
|
|
p++; s++;
|
|
MOP_OUT;
|
|
continue;
|
|
break;
|
|
|
|
case OP_EXACTMB2N: MOP_IN(OP_EXACTMB2N);
|
|
GET_LENGTH_INC(tlen, p);
|
|
DATA_ENSURE(tlen * 2);
|
|
while (tlen-- > 0) {
|
|
if (*p != *s) goto fail;
|
|
p++; s++;
|
|
if (*p != *s) goto fail;
|
|
p++; s++;
|
|
}
|
|
sprev = s - 2;
|
|
MOP_OUT;
|
|
continue;
|
|
break;
|
|
|
|
case OP_EXACTMB3N: MOP_IN(OP_EXACTMB3N);
|
|
GET_LENGTH_INC(tlen, p);
|
|
DATA_ENSURE(tlen * 3);
|
|
while (tlen-- > 0) {
|
|
if (*p != *s) goto fail;
|
|
p++; s++;
|
|
if (*p != *s) goto fail;
|
|
p++; s++;
|
|
if (*p != *s) goto fail;
|
|
p++; s++;
|
|
}
|
|
sprev = s - 3;
|
|
MOP_OUT;
|
|
continue;
|
|
break;
|
|
|
|
case OP_EXACTMBN: MOP_IN(OP_EXACTMBN);
|
|
GET_LENGTH_INC(tlen, p); /* mb-len */
|
|
GET_LENGTH_INC(tlen2, p); /* string len */
|
|
tlen2 *= tlen;
|
|
DATA_ENSURE(tlen2);
|
|
while (tlen2-- > 0) {
|
|
if (*p != *s) goto fail;
|
|
p++; s++;
|
|
}
|
|
sprev = s - tlen;
|
|
MOP_OUT;
|
|
continue;
|
|
break;
|
|
|
|
case OP_CCLASS: MOP_IN(OP_CCLASS);
|
|
DATA_ENSURE(1);
|
|
if (BITSET_AT(((BitSetRef )p), *s) == 0) goto fail;
|
|
p += SIZE_BITSET;
|
|
s += enclen(encode, s, end); /* OP_CCLASS can match mb-code. \D, \S */
|
|
MOP_OUT;
|
|
break;
|
|
|
|
case OP_CCLASS_MB: MOP_IN(OP_CCLASS_MB);
|
|
if (! ONIGENC_IS_MBC_HEAD(encode, s, end)) goto fail;
|
|
|
|
cclass_mb:
|
|
GET_LENGTH_INC(tlen, p);
|
|
{
|
|
OnigCodePoint code;
|
|
UChar *ss;
|
|
int mb_len;
|
|
|
|
DATA_ENSURE(1);
|
|
mb_len = enclen(encode, s, end);
|
|
DATA_ENSURE(mb_len);
|
|
ss = s;
|
|
s += mb_len;
|
|
code = ONIGENC_MBC_TO_CODE(encode, ss, s);
|
|
|
|
#ifdef PLATFORM_UNALIGNED_WORD_ACCESS
|
|
if (! onig_is_in_code_range(p, code)) goto fail;
|
|
#else
|
|
q = p;
|
|
ALIGNMENT_RIGHT(q);
|
|
if (! onig_is_in_code_range(q, code)) goto fail;
|
|
#endif
|
|
}
|
|
p += tlen;
|
|
MOP_OUT;
|
|
break;
|
|
|
|
case OP_CCLASS_MIX: MOP_IN(OP_CCLASS_MIX);
|
|
DATA_ENSURE(1);
|
|
if (ONIGENC_IS_MBC_HEAD(encode, s, end)) {
|
|
p += SIZE_BITSET;
|
|
goto cclass_mb;
|
|
}
|
|
else {
|
|
if (BITSET_AT(((BitSetRef )p), *s) == 0)
|
|
goto fail;
|
|
|
|
p += SIZE_BITSET;
|
|
GET_LENGTH_INC(tlen, p);
|
|
p += tlen;
|
|
s++;
|
|
}
|
|
MOP_OUT;
|
|
break;
|
|
|
|
case OP_CCLASS_NOT: MOP_IN(OP_CCLASS_NOT);
|
|
DATA_ENSURE(1);
|
|
if (BITSET_AT(((BitSetRef )p), *s) != 0) goto fail;
|
|
p += SIZE_BITSET;
|
|
s += enclen(encode, s, end);
|
|
MOP_OUT;
|
|
break;
|
|
|
|
case OP_CCLASS_MB_NOT: MOP_IN(OP_CCLASS_MB_NOT);
|
|
DATA_ENSURE(1);
|
|
if (! ONIGENC_IS_MBC_HEAD(encode, s, end)) {
|
|
s++;
|
|
GET_LENGTH_INC(tlen, p);
|
|
p += tlen;
|
|
goto cc_mb_not_success;
|
|
}
|
|
|
|
cclass_mb_not:
|
|
GET_LENGTH_INC(tlen, p);
|
|
{
|
|
OnigCodePoint code;
|
|
UChar *ss;
|
|
int mb_len = enclen(encode, s, end);
|
|
|
|
if (! DATA_ENSURE_CHECK(mb_len)) {
|
|
DATA_ENSURE(1);
|
|
s = (UChar* )end;
|
|
p += tlen;
|
|
goto cc_mb_not_success;
|
|
}
|
|
|
|
ss = s;
|
|
s += mb_len;
|
|
code = ONIGENC_MBC_TO_CODE(encode, ss, s);
|
|
|
|
#ifdef PLATFORM_UNALIGNED_WORD_ACCESS
|
|
if (onig_is_in_code_range(p, code)) goto fail;
|
|
#else
|
|
q = p;
|
|
ALIGNMENT_RIGHT(q);
|
|
if (onig_is_in_code_range(q, code)) goto fail;
|
|
#endif
|
|
}
|
|
p += tlen;
|
|
|
|
cc_mb_not_success:
|
|
MOP_OUT;
|
|
break;
|
|
|
|
case OP_CCLASS_MIX_NOT: MOP_IN(OP_CCLASS_MIX_NOT);
|
|
DATA_ENSURE(1);
|
|
if (ONIGENC_IS_MBC_HEAD(encode, s, end)) {
|
|
p += SIZE_BITSET;
|
|
goto cclass_mb_not;
|
|
}
|
|
else {
|
|
if (BITSET_AT(((BitSetRef )p), *s) != 0)
|
|
goto fail;
|
|
|
|
p += SIZE_BITSET;
|
|
GET_LENGTH_INC(tlen, p);
|
|
p += tlen;
|
|
s++;
|
|
}
|
|
MOP_OUT;
|
|
break;
|
|
|
|
case OP_CCLASS_NODE: MOP_IN(OP_CCLASS_NODE);
|
|
{
|
|
OnigCodePoint code;
|
|
void *node;
|
|
int mb_len;
|
|
UChar *ss;
|
|
|
|
DATA_ENSURE(1);
|
|
GET_POINTER_INC(node, p);
|
|
mb_len = enclen(encode, s, end);
|
|
ss = s;
|
|
s += mb_len;
|
|
DATA_ENSURE(0);
|
|
code = ONIGENC_MBC_TO_CODE(encode, ss, s);
|
|
if (onig_is_code_in_cc_len(mb_len, code, node) == 0) goto fail;
|
|
}
|
|
MOP_OUT;
|
|
break;
|
|
|
|
case OP_ANYCHAR: MOP_IN(OP_ANYCHAR);
|
|
DATA_ENSURE(1);
|
|
n = enclen(encode, s, end);
|
|
DATA_ENSURE(n);
|
|
if (ONIGENC_IS_MBC_NEWLINE_EX(encode, s, str, end, option, 0)) goto fail;
|
|
s += n;
|
|
MOP_OUT;
|
|
break;
|
|
|
|
case OP_ANYCHAR_ML: MOP_IN(OP_ANYCHAR_ML);
|
|
DATA_ENSURE(1);
|
|
n = enclen(encode, s, end);
|
|
DATA_ENSURE(n);
|
|
s += n;
|
|
MOP_OUT;
|
|
break;
|
|
|
|
case OP_ANYCHAR_STAR: MOP_IN(OP_ANYCHAR_STAR);
|
|
while (DATA_ENSURE_CHECK1) {
|
|
STACK_PUSH_ALT(p, s, sprev, pkeep);
|
|
n = enclen(encode, s, end);
|
|
DATA_ENSURE(n);
|
|
if (ONIGENC_IS_MBC_NEWLINE_EX(encode, s, str, end, option, 0)) goto fail;
|
|
sprev = s;
|
|
s += n;
|
|
}
|
|
MOP_OUT;
|
|
break;
|
|
|
|
case OP_ANYCHAR_ML_STAR: MOP_IN(OP_ANYCHAR_ML_STAR);
|
|
while (DATA_ENSURE_CHECK1) {
|
|
STACK_PUSH_ALT(p, s, sprev, pkeep);
|
|
n = enclen(encode, s, end);
|
|
if (n > 1) {
|
|
DATA_ENSURE(n);
|
|
sprev = s;
|
|
s += n;
|
|
}
|
|
else {
|
|
sprev = s;
|
|
s++;
|
|
}
|
|
}
|
|
MOP_OUT;
|
|
break;
|
|
|
|
case OP_ANYCHAR_STAR_PEEK_NEXT: MOP_IN(OP_ANYCHAR_STAR_PEEK_NEXT);
|
|
while (DATA_ENSURE_CHECK1) {
|
|
if (*p == *s) {
|
|
STACK_PUSH_ALT(p + 1, s, sprev, pkeep);
|
|
}
|
|
n = enclen(encode, s, end);
|
|
DATA_ENSURE(n);
|
|
if (ONIGENC_IS_MBC_NEWLINE_EX(encode, s, str, end, option, 0)) goto fail;
|
|
sprev = s;
|
|
s += n;
|
|
}
|
|
p++;
|
|
MOP_OUT;
|
|
break;
|
|
|
|
case OP_ANYCHAR_ML_STAR_PEEK_NEXT:MOP_IN(OP_ANYCHAR_ML_STAR_PEEK_NEXT);
|
|
while (DATA_ENSURE_CHECK1) {
|
|
if (*p == *s) {
|
|
STACK_PUSH_ALT(p + 1, s, sprev, pkeep);
|
|
}
|
|
n = enclen(encode, s, end);
|
|
if (n > 1) {
|
|
DATA_ENSURE(n);
|
|
sprev = s;
|
|
s += n;
|
|
}
|
|
else {
|
|
sprev = s;
|
|
s++;
|
|
}
|
|
}
|
|
p++;
|
|
MOP_OUT;
|
|
break;
|
|
|
|
#ifdef USE_COMBINATION_EXPLOSION_CHECK
|
|
case OP_STATE_CHECK_ANYCHAR_STAR: MOP_IN(OP_STATE_CHECK_ANYCHAR_STAR);
|
|
GET_STATE_CHECK_NUM_INC(mem, p);
|
|
while (DATA_ENSURE_CHECK1) {
|
|
STATE_CHECK_VAL(scv, mem);
|
|
if (scv) goto fail;
|
|
|
|
STACK_PUSH_ALT_WITH_STATE_CHECK(p, s, sprev, mem, pkeep);
|
|
n = enclen(encode, s, end);
|
|
DATA_ENSURE(n);
|
|
if (ONIGENC_IS_MBC_NEWLINE_EX(encode, s, str, end, option, 0)) goto fail;
|
|
sprev = s;
|
|
s += n;
|
|
}
|
|
MOP_OUT;
|
|
break;
|
|
|
|
case OP_STATE_CHECK_ANYCHAR_ML_STAR:
|
|
MOP_IN(OP_STATE_CHECK_ANYCHAR_ML_STAR);
|
|
|
|
GET_STATE_CHECK_NUM_INC(mem, p);
|
|
while (DATA_ENSURE_CHECK1) {
|
|
STATE_CHECK_VAL(scv, mem);
|
|
if (scv) goto fail;
|
|
|
|
STACK_PUSH_ALT_WITH_STATE_CHECK(p, s, sprev, mem, pkeep);
|
|
n = enclen(encode, s, end);
|
|
if (n > 1) {
|
|
DATA_ENSURE(n);
|
|
sprev = s;
|
|
s += n;
|
|
}
|
|
else {
|
|
sprev = s;
|
|
s++;
|
|
}
|
|
}
|
|
MOP_OUT;
|
|
break;
|
|
#endif /* USE_COMBINATION_EXPLOSION_CHECK */
|
|
|
|
case OP_WORD: MOP_IN(OP_WORD);
|
|
DATA_ENSURE(1);
|
|
if (! ONIGENC_IS_MBC_WORD(encode, s, end))
|
|
goto fail;
|
|
|
|
s += enclen(encode, s, end);
|
|
MOP_OUT;
|
|
break;
|
|
|
|
case OP_ASCII_WORD: MOP_IN(OP_ASCII_WORD);
|
|
DATA_ENSURE(1);
|
|
if (! ONIGENC_IS_MBC_ASCII_WORD(encode, s, end))
|
|
goto fail;
|
|
|
|
s += enclen(encode, s, end);
|
|
MOP_OUT;
|
|
break;
|
|
|
|
case OP_NOT_WORD: MOP_IN(OP_NOT_WORD);
|
|
DATA_ENSURE(1);
|
|
if (ONIGENC_IS_MBC_WORD(encode, s, end))
|
|
goto fail;
|
|
|
|
s += enclen(encode, s, end);
|
|
MOP_OUT;
|
|
break;
|
|
|
|
case OP_NOT_ASCII_WORD: MOP_IN(OP_NOT_ASCII_WORD);
|
|
DATA_ENSURE(1);
|
|
if (ONIGENC_IS_MBC_ASCII_WORD(encode, s, end))
|
|
goto fail;
|
|
|
|
s += enclen(encode, s, end);
|
|
MOP_OUT;
|
|
break;
|
|
|
|
case OP_WORD_BOUND: MOP_IN(OP_WORD_BOUND);
|
|
if (ON_STR_BEGIN(s)) {
|
|
DATA_ENSURE(1);
|
|
if (! ONIGENC_IS_MBC_WORD(encode, s, end))
|
|
goto fail;
|
|
}
|
|
else if (ON_STR_END(s)) {
|
|
if (! ONIGENC_IS_MBC_WORD(encode, sprev, end))
|
|
goto fail;
|
|
}
|
|
else {
|
|
if (ONIGENC_IS_MBC_WORD(encode, s, end)
|
|
== ONIGENC_IS_MBC_WORD(encode, sprev, end))
|
|
goto fail;
|
|
}
|
|
MOP_OUT;
|
|
continue;
|
|
break;
|
|
|
|
case OP_ASCII_WORD_BOUND: MOP_IN(OP_ASCII_WORD_BOUND);
|
|
if (ON_STR_BEGIN(s)) {
|
|
DATA_ENSURE(1);
|
|
if (! ONIGENC_IS_MBC_ASCII_WORD(encode, s, end))
|
|
goto fail;
|
|
}
|
|
else if (ON_STR_END(s)) {
|
|
if (! ONIGENC_IS_MBC_ASCII_WORD(encode, sprev, end))
|
|
goto fail;
|
|
}
|
|
else {
|
|
if (ONIGENC_IS_MBC_ASCII_WORD(encode, s, end)
|
|
== ONIGENC_IS_MBC_ASCII_WORD(encode, sprev, end))
|
|
goto fail;
|
|
}
|
|
MOP_OUT;
|
|
continue;
|
|
break;
|
|
|
|
case OP_NOT_WORD_BOUND: MOP_IN(OP_NOT_WORD_BOUND);
|
|
if (ON_STR_BEGIN(s)) {
|
|
if (DATA_ENSURE_CHECK1 && ONIGENC_IS_MBC_WORD(encode, s, end))
|
|
goto fail;
|
|
}
|
|
else if (ON_STR_END(s)) {
|
|
if (ONIGENC_IS_MBC_WORD(encode, sprev, end))
|
|
goto fail;
|
|
}
|
|
else {
|
|
if (ONIGENC_IS_MBC_WORD(encode, s, end)
|
|
!= ONIGENC_IS_MBC_WORD(encode, sprev, end))
|
|
goto fail;
|
|
}
|
|
MOP_OUT;
|
|
continue;
|
|
break;
|
|
|
|
case OP_NOT_ASCII_WORD_BOUND: MOP_IN(OP_NOT_ASCII_WORD_BOUND);
|
|
if (ON_STR_BEGIN(s)) {
|
|
if (DATA_ENSURE_CHECK1 && ONIGENC_IS_MBC_ASCII_WORD(encode, s, end))
|
|
goto fail;
|
|
}
|
|
else if (ON_STR_END(s)) {
|
|
if (ONIGENC_IS_MBC_ASCII_WORD(encode, sprev, end))
|
|
goto fail;
|
|
}
|
|
else {
|
|
if (ONIGENC_IS_MBC_ASCII_WORD(encode, s, end)
|
|
!= ONIGENC_IS_MBC_ASCII_WORD(encode, sprev, end))
|
|
goto fail;
|
|
}
|
|
MOP_OUT;
|
|
continue;
|
|
break;
|
|
|
|
#ifdef USE_WORD_BEGIN_END
|
|
case OP_WORD_BEGIN: MOP_IN(OP_WORD_BEGIN);
|
|
if (DATA_ENSURE_CHECK1 && ONIGENC_IS_MBC_WORD(encode, s, end)) {
|
|
if (ON_STR_BEGIN(s) || !ONIGENC_IS_MBC_WORD(encode, sprev, end)) {
|
|
MOP_OUT;
|
|
continue;
|
|
}
|
|
}
|
|
goto fail;
|
|
break;
|
|
|
|
case OP_ASCII_WORD_BEGIN: MOP_IN(OP_ASCII_WORD_BEGIN);
|
|
if (DATA_ENSURE_CHECK1 && ONIGENC_IS_MBC_ASCII_WORD(encode, s, end)) {
|
|
if (ON_STR_BEGIN(s) || !ONIGENC_IS_MBC_ASCII_WORD(encode, sprev, end)) {
|
|
MOP_OUT;
|
|
continue;
|
|
}
|
|
}
|
|
goto fail;
|
|
break;
|
|
|
|
case OP_WORD_END: MOP_IN(OP_WORD_END);
|
|
if (!ON_STR_BEGIN(s) && ONIGENC_IS_MBC_WORD(encode, sprev, end)) {
|
|
if (ON_STR_END(s) || !ONIGENC_IS_MBC_WORD(encode, s, end)) {
|
|
MOP_OUT;
|
|
continue;
|
|
}
|
|
}
|
|
goto fail;
|
|
break;
|
|
|
|
case OP_ASCII_WORD_END: MOP_IN(OP_ASCII_WORD_END);
|
|
if (!ON_STR_BEGIN(s) && ONIGENC_IS_MBC_ASCII_WORD(encode, sprev, end)) {
|
|
if (ON_STR_END(s) || !ONIGENC_IS_MBC_ASCII_WORD(encode, s, end)) {
|
|
MOP_OUT;
|
|
continue;
|
|
}
|
|
}
|
|
goto fail;
|
|
break;
|
|
#endif
|
|
|
|
case OP_BEGIN_BUF: MOP_IN(OP_BEGIN_BUF);
|
|
if (! ON_STR_BEGIN(s)) goto fail;
|
|
|
|
MOP_OUT;
|
|
continue;
|
|
break;
|
|
|
|
case OP_END_BUF: MOP_IN(OP_END_BUF);
|
|
if (! ON_STR_END(s)) goto fail;
|
|
|
|
MOP_OUT;
|
|
continue;
|
|
break;
|
|
|
|
case OP_BEGIN_LINE: MOP_IN(OP_BEGIN_LINE);
|
|
op_begin_line:
|
|
if (ON_STR_BEGIN(s)) {
|
|
if (IS_NOTBOL(msa->options)) goto fail;
|
|
MOP_OUT;
|
|
continue;
|
|
}
|
|
else if (ONIGENC_IS_MBC_NEWLINE(encode, sprev, end)
|
|
#ifdef USE_CRNL_AS_LINE_TERMINATOR
|
|
&& !(IS_NEWLINE_CRLF(option)
|
|
&& ONIGENC_IS_MBC_CRNL(encode, sprev, end))
|
|
#endif
|
|
&& !ON_STR_END(s)) {
|
|
MOP_OUT;
|
|
continue;
|
|
}
|
|
goto fail;
|
|
break;
|
|
|
|
case OP_END_LINE: MOP_IN(OP_END_LINE);
|
|
if (ON_STR_END(s)) {
|
|
#ifndef USE_NEWLINE_AT_END_OF_STRING_HAS_EMPTY_LINE
|
|
if (IS_EMPTY_STR || !ONIGENC_IS_MBC_NEWLINE_EX(encode, sprev, str, end, option, 1)) {
|
|
#endif
|
|
if (IS_NOTEOL(msa->options)) goto fail;
|
|
MOP_OUT;
|
|
continue;
|
|
#ifndef USE_NEWLINE_AT_END_OF_STRING_HAS_EMPTY_LINE
|
|
}
|
|
#endif
|
|
}
|
|
else if (ONIGENC_IS_MBC_NEWLINE_EX(encode, s, str, end, option, 1)) {
|
|
MOP_OUT;
|
|
continue;
|
|
}
|
|
goto fail;
|
|
break;
|
|
|
|
case OP_SEMI_END_BUF: MOP_IN(OP_SEMI_END_BUF);
|
|
if (ON_STR_END(s)) {
|
|
#ifndef USE_NEWLINE_AT_END_OF_STRING_HAS_EMPTY_LINE
|
|
if (IS_EMPTY_STR || !ONIGENC_IS_MBC_NEWLINE_EX(encode, sprev, str, end, option, 1)) {
|
|
#endif
|
|
if (IS_NOTEOL(msa->options)) goto fail;
|
|
MOP_OUT;
|
|
continue;
|
|
#ifndef USE_NEWLINE_AT_END_OF_STRING_HAS_EMPTY_LINE
|
|
}
|
|
#endif
|
|
}
|
|
else if (ONIGENC_IS_MBC_NEWLINE_EX(encode, s, str, end, option, 1)) {
|
|
UChar* ss = s + enclen(encode, s, end);
|
|
if (ON_STR_END(ss)) {
|
|
MOP_OUT;
|
|
continue;
|
|
}
|
|
#ifdef USE_CRNL_AS_LINE_TERMINATOR
|
|
else if (ss < end) {
|
|
ss += enclen(encode, ss, end);
|
|
if (ON_STR_END(ss)) {
|
|
MOP_OUT;
|
|
continue;
|
|
}
|
|
}
|
|
#endif
|
|
}
|
|
goto fail;
|
|
break;
|
|
|
|
case OP_BEGIN_POSITION: MOP_IN(OP_BEGIN_POSITION);
|
|
if (s != msa->gpos)
|
|
goto fail;
|
|
|
|
MOP_OUT;
|
|
continue;
|
|
break;
|
|
|
|
case OP_BEGIN_POS_OR_LINE: MOP_IN(OP_BEGIN_POS_OR_LINE);
|
|
if (s != msa->gpos)
|
|
goto op_begin_line;
|
|
|
|
MOP_OUT;
|
|
continue;
|
|
break;
|
|
|
|
case OP_MEMORY_START_PUSH: MOP_IN(OP_MEMORY_START_PUSH);
|
|
GET_MEMNUM_INC(mem, p);
|
|
STACK_PUSH_MEM_START(mem, s);
|
|
MOP_OUT;
|
|
continue;
|
|
break;
|
|
|
|
case OP_MEMORY_START: MOP_IN(OP_MEMORY_START);
|
|
GET_MEMNUM_INC(mem, p);
|
|
mem_start_stk[mem] = (OnigStackIndex )((void* )s);
|
|
MOP_OUT;
|
|
continue;
|
|
break;
|
|
|
|
case OP_MEMORY_END_PUSH: MOP_IN(OP_MEMORY_END_PUSH);
|
|
GET_MEMNUM_INC(mem, p);
|
|
STACK_PUSH_MEM_END(mem, s);
|
|
MOP_OUT;
|
|
continue;
|
|
break;
|
|
|
|
case OP_MEMORY_END: MOP_IN(OP_MEMORY_END);
|
|
GET_MEMNUM_INC(mem, p);
|
|
mem_end_stk[mem] = (OnigStackIndex )((void* )s);
|
|
MOP_OUT;
|
|
continue;
|
|
break;
|
|
|
|
case OP_KEEP: MOP_IN(OP_KEEP);
|
|
pkeep = s;
|
|
MOP_OUT;
|
|
continue;
|
|
break;
|
|
|
|
#ifdef USE_SUBEXP_CALL
|
|
case OP_MEMORY_END_PUSH_REC: MOP_IN(OP_MEMORY_END_PUSH_REC);
|
|
GET_MEMNUM_INC(mem, p);
|
|
STACK_GET_MEM_START(mem, stkp); /* should be before push mem-end. */
|
|
STACK_PUSH_MEM_END(mem, s);
|
|
mem_start_stk[mem] = GET_STACK_INDEX(stkp);
|
|
MOP_OUT;
|
|
continue;
|
|
break;
|
|
|
|
case OP_MEMORY_END_REC: MOP_IN(OP_MEMORY_END_REC);
|
|
GET_MEMNUM_INC(mem, p);
|
|
mem_end_stk[mem] = (OnigStackIndex )((void* )s);
|
|
STACK_GET_MEM_START(mem, stkp);
|
|
|
|
if (BIT_STATUS_AT(reg->bt_mem_start, mem))
|
|
mem_start_stk[mem] = GET_STACK_INDEX(stkp);
|
|
else
|
|
mem_start_stk[mem] = (OnigStackIndex )((void* )stkp->u.mem.pstr);
|
|
|
|
STACK_PUSH_MEM_END_MARK(mem);
|
|
MOP_OUT;
|
|
continue;
|
|
break;
|
|
#endif
|
|
|
|
case OP_BACKREF1: MOP_IN(OP_BACKREF1);
|
|
mem = 1;
|
|
goto backref;
|
|
break;
|
|
|
|
case OP_BACKREF2: MOP_IN(OP_BACKREF2);
|
|
mem = 2;
|
|
goto backref;
|
|
break;
|
|
|
|
case OP_BACKREFN: MOP_IN(OP_BACKREFN);
|
|
GET_MEMNUM_INC(mem, p);
|
|
backref:
|
|
{
|
|
int len;
|
|
UChar *pstart, *pend;
|
|
|
|
/* if you want to remove following line,
|
|
you should check in parse and compile time. */
|
|
if (mem > num_mem) goto fail;
|
|
if (mem_end_stk[mem] == INVALID_STACK_INDEX) goto fail;
|
|
if (mem_start_stk[mem] == INVALID_STACK_INDEX) goto fail;
|
|
|
|
if (BIT_STATUS_AT(reg->bt_mem_start, mem))
|
|
pstart = STACK_AT(mem_start_stk[mem])->u.mem.pstr;
|
|
else
|
|
pstart = (UChar* )((void* )mem_start_stk[mem]);
|
|
|
|
pend = (BIT_STATUS_AT(reg->bt_mem_end, mem)
|
|
? STACK_AT(mem_end_stk[mem])->u.mem.pstr
|
|
: (UChar* )((void* )mem_end_stk[mem]));
|
|
n = pend - pstart;
|
|
DATA_ENSURE(n);
|
|
sprev = s;
|
|
STRING_CMP(pstart, s, n);
|
|
while (sprev + (len = enclen(encode, sprev, end)) < s)
|
|
sprev += len;
|
|
|
|
MOP_OUT;
|
|
continue;
|
|
}
|
|
break;
|
|
|
|
case OP_BACKREFN_IC: MOP_IN(OP_BACKREFN_IC);
|
|
GET_MEMNUM_INC(mem, p);
|
|
{
|
|
int len;
|
|
UChar *pstart, *pend;
|
|
|
|
/* if you want to remove following line,
|
|
you should check in parse and compile time. */
|
|
if (mem > num_mem) goto fail;
|
|
if (mem_end_stk[mem] == INVALID_STACK_INDEX) goto fail;
|
|
if (mem_start_stk[mem] == INVALID_STACK_INDEX) goto fail;
|
|
|
|
if (BIT_STATUS_AT(reg->bt_mem_start, mem))
|
|
pstart = STACK_AT(mem_start_stk[mem])->u.mem.pstr;
|
|
else
|
|
pstart = (UChar* )((void* )mem_start_stk[mem]);
|
|
|
|
pend = (BIT_STATUS_AT(reg->bt_mem_end, mem)
|
|
? STACK_AT(mem_end_stk[mem])->u.mem.pstr
|
|
: (UChar* )((void* )mem_end_stk[mem]));
|
|
n = pend - pstart;
|
|
DATA_ENSURE(n);
|
|
sprev = s;
|
|
STRING_CMP_IC(case_fold_flag, pstart, &s, (int)n, end);
|
|
while (sprev + (len = enclen(encode, sprev, end)) < s)
|
|
sprev += len;
|
|
|
|
MOP_OUT;
|
|
continue;
|
|
}
|
|
break;
|
|
|
|
case OP_BACKREF_MULTI: MOP_IN(OP_BACKREF_MULTI);
|
|
{
|
|
int len, is_fail;
|
|
UChar *pstart, *pend, *swork;
|
|
|
|
GET_LENGTH_INC(tlen, p);
|
|
for (i = 0; i < tlen; i++) {
|
|
GET_MEMNUM_INC(mem, p);
|
|
|
|
if (mem_end_stk[mem] == INVALID_STACK_INDEX) continue;
|
|
if (mem_start_stk[mem] == INVALID_STACK_INDEX) continue;
|
|
|
|
if (BIT_STATUS_AT(reg->bt_mem_start, mem))
|
|
pstart = STACK_AT(mem_start_stk[mem])->u.mem.pstr;
|
|
else
|
|
pstart = (UChar* )((void* )mem_start_stk[mem]);
|
|
|
|
pend = (BIT_STATUS_AT(reg->bt_mem_end, mem)
|
|
? STACK_AT(mem_end_stk[mem])->u.mem.pstr
|
|
: (UChar* )((void* )mem_end_stk[mem]));
|
|
n = pend - pstart;
|
|
DATA_ENSURE(n);
|
|
sprev = s;
|
|
swork = s;
|
|
STRING_CMP_VALUE(pstart, swork, n, is_fail);
|
|
if (is_fail) continue;
|
|
s = swork;
|
|
while (sprev + (len = enclen(encode, sprev, end)) < s)
|
|
sprev += len;
|
|
|
|
p += (SIZE_MEMNUM * (tlen - i - 1));
|
|
break; /* success */
|
|
}
|
|
if (i == tlen) goto fail;
|
|
MOP_OUT;
|
|
continue;
|
|
}
|
|
break;
|
|
|
|
case OP_BACKREF_MULTI_IC: MOP_IN(OP_BACKREF_MULTI_IC);
|
|
{
|
|
int len, is_fail;
|
|
UChar *pstart, *pend, *swork;
|
|
|
|
GET_LENGTH_INC(tlen, p);
|
|
for (i = 0; i < tlen; i++) {
|
|
GET_MEMNUM_INC(mem, p);
|
|
|
|
if (mem_end_stk[mem] == INVALID_STACK_INDEX) continue;
|
|
if (mem_start_stk[mem] == INVALID_STACK_INDEX) continue;
|
|
|
|
if (BIT_STATUS_AT(reg->bt_mem_start, mem))
|
|
pstart = STACK_AT(mem_start_stk[mem])->u.mem.pstr;
|
|
else
|
|
pstart = (UChar* )((void* )mem_start_stk[mem]);
|
|
|
|
pend = (BIT_STATUS_AT(reg->bt_mem_end, mem)
|
|
? STACK_AT(mem_end_stk[mem])->u.mem.pstr
|
|
: (UChar* )((void* )mem_end_stk[mem]));
|
|
n = pend - pstart;
|
|
DATA_ENSURE(n);
|
|
sprev = s;
|
|
swork = s;
|
|
STRING_CMP_VALUE_IC(case_fold_flag, pstart, &swork, n, end, is_fail);
|
|
if (is_fail) continue;
|
|
s = swork;
|
|
while (sprev + (len = enclen(encode, sprev, end)) < s)
|
|
sprev += len;
|
|
|
|
p += (SIZE_MEMNUM * (tlen - i - 1));
|
|
break; /* success */
|
|
}
|
|
if (i == tlen) goto fail;
|
|
MOP_OUT;
|
|
continue;
|
|
}
|
|
break;
|
|
|
|
#ifdef USE_BACKREF_WITH_LEVEL
|
|
case OP_BACKREF_WITH_LEVEL:
|
|
{
|
|
int len;
|
|
OnigOptionType ic;
|
|
LengthType level;
|
|
|
|
GET_OPTION_INC(ic, p);
|
|
GET_LENGTH_INC(level, p);
|
|
GET_LENGTH_INC(tlen, p);
|
|
|
|
sprev = s;
|
|
if (backref_match_at_nested_level(reg, stk, stk_base, ic
|
|
, case_fold_flag, (int )level, (int )tlen, p, &s, end)) {
|
|
while (sprev + (len = enclen(encode, sprev, end)) < s)
|
|
sprev += len;
|
|
|
|
p += (SIZE_MEMNUM * tlen);
|
|
}
|
|
else
|
|
goto fail;
|
|
|
|
MOP_OUT;
|
|
continue;
|
|
}
|
|
|
|
break;
|
|
#endif
|
|
|
|
#if 0 /* no need: IS_DYNAMIC_OPTION() == 0 */
|
|
case OP_SET_OPTION_PUSH: MOP_IN(OP_SET_OPTION_PUSH);
|
|
GET_OPTION_INC(option, p);
|
|
STACK_PUSH_ALT(p, s, sprev, pkeep);
|
|
p += SIZE_OP_SET_OPTION + SIZE_OP_FAIL;
|
|
MOP_OUT;
|
|
continue;
|
|
break;
|
|
|
|
case OP_SET_OPTION: MOP_IN(OP_SET_OPTION);
|
|
GET_OPTION_INC(option, p);
|
|
MOP_OUT;
|
|
continue;
|
|
break;
|
|
#endif
|
|
|
|
case OP_NULL_CHECK_START: MOP_IN(OP_NULL_CHECK_START);
|
|
GET_MEMNUM_INC(mem, p); /* mem: null check id */
|
|
STACK_PUSH_NULL_CHECK_START(mem, s);
|
|
MOP_OUT;
|
|
continue;
|
|
break;
|
|
|
|
case OP_NULL_CHECK_END: MOP_IN(OP_NULL_CHECK_END);
|
|
{
|
|
int isnull;
|
|
|
|
GET_MEMNUM_INC(mem, p); /* mem: null check id */
|
|
STACK_NULL_CHECK(isnull, mem, s);
|
|
if (isnull) {
|
|
#ifdef ONIG_DEBUG_MATCH
|
|
fprintf(stderr, "NULL_CHECK_END: skip id:%d, s:%"PRIdPTR" (%p)\n",
|
|
(int )mem, (intptr_t )s, s);
|
|
#endif
|
|
null_check_found:
|
|
/* empty loop founded, skip next instruction */
|
|
switch (*p++) {
|
|
case OP_JUMP:
|
|
case OP_PUSH:
|
|
p += SIZE_RELADDR;
|
|
break;
|
|
case OP_REPEAT_INC:
|
|
case OP_REPEAT_INC_NG:
|
|
case OP_REPEAT_INC_SG:
|
|
case OP_REPEAT_INC_NG_SG:
|
|
p += SIZE_MEMNUM;
|
|
break;
|
|
default:
|
|
goto unexpected_bytecode_error;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
MOP_OUT;
|
|
continue;
|
|
break;
|
|
|
|
#ifdef USE_MONOMANIAC_CHECK_CAPTURES_IN_ENDLESS_REPEAT
|
|
case OP_NULL_CHECK_END_MEMST: MOP_IN(OP_NULL_CHECK_END_MEMST);
|
|
{
|
|
int isnull;
|
|
|
|
GET_MEMNUM_INC(mem, p); /* mem: null check id */
|
|
STACK_NULL_CHECK_MEMST(isnull, mem, s, reg);
|
|
if (isnull) {
|
|
#ifdef ONIG_DEBUG_MATCH
|
|
fprintf(stderr, "NULL_CHECK_END_MEMST: skip id:%d, s:%"PRIdPTR" (%p)\n",
|
|
(int )mem, (intptr_t )s, s);
|
|
#endif
|
|
if (isnull == -1) goto fail;
|
|
goto null_check_found;
|
|
}
|
|
}
|
|
MOP_OUT;
|
|
continue;
|
|
break;
|
|
#endif
|
|
|
|
#ifdef USE_SUBEXP_CALL
|
|
case OP_NULL_CHECK_END_MEMST_PUSH:
|
|
MOP_IN(OP_NULL_CHECK_END_MEMST_PUSH);
|
|
{
|
|
int isnull;
|
|
|
|
GET_MEMNUM_INC(mem, p); /* mem: null check id */
|
|
#ifdef USE_MONOMANIAC_CHECK_CAPTURES_IN_ENDLESS_REPEAT
|
|
STACK_NULL_CHECK_MEMST_REC(isnull, mem, s, reg);
|
|
#else
|
|
STACK_NULL_CHECK_REC(isnull, mem, s);
|
|
#endif
|
|
if (isnull) {
|
|
#ifdef ONIG_DEBUG_MATCH
|
|
fprintf(stderr, "NULL_CHECK_END_MEMST_PUSH: skip id:%d, s:%"PRIdPTR" (%p)\n",
|
|
(int )mem, (intptr_t )s, s);
|
|
#endif
|
|
if (isnull == -1) goto fail;
|
|
goto null_check_found;
|
|
}
|
|
else {
|
|
STACK_PUSH_NULL_CHECK_END(mem);
|
|
}
|
|
}
|
|
MOP_OUT;
|
|
continue;
|
|
break;
|
|
#endif
|
|
|
|
case OP_JUMP: MOP_IN(OP_JUMP);
|
|
GET_RELADDR_INC(addr, p);
|
|
p += addr;
|
|
MOP_OUT;
|
|
CHECK_INTERRUPT_IN_MATCH_AT;
|
|
continue;
|
|
break;
|
|
|
|
case OP_PUSH: MOP_IN(OP_PUSH);
|
|
GET_RELADDR_INC(addr, p);
|
|
STACK_PUSH_ALT(p + addr, s, sprev, pkeep);
|
|
MOP_OUT;
|
|
continue;
|
|
break;
|
|
|
|
#ifdef USE_COMBINATION_EXPLOSION_CHECK
|
|
case OP_STATE_CHECK_PUSH: MOP_IN(OP_STATE_CHECK_PUSH);
|
|
GET_STATE_CHECK_NUM_INC(mem, p);
|
|
STATE_CHECK_VAL(scv, mem);
|
|
if (scv) goto fail;
|
|
|
|
GET_RELADDR_INC(addr, p);
|
|
STACK_PUSH_ALT_WITH_STATE_CHECK(p + addr, s, sprev, mem, pkeep);
|
|
MOP_OUT;
|
|
continue;
|
|
break;
|
|
|
|
case OP_STATE_CHECK_PUSH_OR_JUMP: MOP_IN(OP_STATE_CHECK_PUSH_OR_JUMP);
|
|
GET_STATE_CHECK_NUM_INC(mem, p);
|
|
GET_RELADDR_INC(addr, p);
|
|
STATE_CHECK_VAL(scv, mem);
|
|
if (scv) {
|
|
p += addr;
|
|
}
|
|
else {
|
|
STACK_PUSH_ALT_WITH_STATE_CHECK(p + addr, s, sprev, mem, pkeep);
|
|
}
|
|
MOP_OUT;
|
|
continue;
|
|
break;
|
|
|
|
case OP_STATE_CHECK: MOP_IN(OP_STATE_CHECK);
|
|
GET_STATE_CHECK_NUM_INC(mem, p);
|
|
STATE_CHECK_VAL(scv, mem);
|
|
if (scv) goto fail;
|
|
|
|
STACK_PUSH_STATE_CHECK(s, mem);
|
|
MOP_OUT;
|
|
continue;
|
|
break;
|
|
#endif /* USE_COMBINATION_EXPLOSION_CHECK */
|
|
|
|
case OP_POP: MOP_IN(OP_POP);
|
|
STACK_POP_ONE;
|
|
MOP_OUT;
|
|
continue;
|
|
break;
|
|
|
|
case OP_PUSH_OR_JUMP_EXACT1: MOP_IN(OP_PUSH_OR_JUMP_EXACT1);
|
|
GET_RELADDR_INC(addr, p);
|
|
if (*p == *s && DATA_ENSURE_CHECK1) {
|
|
p++;
|
|
STACK_PUSH_ALT(p + addr, s, sprev, pkeep);
|
|
MOP_OUT;
|
|
continue;
|
|
}
|
|
p += (addr + 1);
|
|
MOP_OUT;
|
|
continue;
|
|
break;
|
|
|
|
case OP_PUSH_IF_PEEK_NEXT: MOP_IN(OP_PUSH_IF_PEEK_NEXT);
|
|
GET_RELADDR_INC(addr, p);
|
|
if (*p == *s) {
|
|
p++;
|
|
STACK_PUSH_ALT(p + addr, s, sprev, pkeep);
|
|
MOP_OUT;
|
|
continue;
|
|
}
|
|
p++;
|
|
MOP_OUT;
|
|
continue;
|
|
break;
|
|
|
|
case OP_REPEAT: MOP_IN(OP_REPEAT);
|
|
{
|
|
GET_MEMNUM_INC(mem, p); /* mem: OP_REPEAT ID */
|
|
GET_RELADDR_INC(addr, p);
|
|
|
|
STACK_ENSURE(1);
|
|
repeat_stk[mem] = GET_STACK_INDEX(stk);
|
|
STACK_PUSH_REPEAT(mem, p);
|
|
|
|
if (reg->repeat_range[mem].lower == 0) {
|
|
STACK_PUSH_ALT(p + addr, s, sprev, pkeep);
|
|
}
|
|
}
|
|
MOP_OUT;
|
|
continue;
|
|
break;
|
|
|
|
case OP_REPEAT_NG: MOP_IN(OP_REPEAT_NG);
|
|
{
|
|
GET_MEMNUM_INC(mem, p); /* mem: OP_REPEAT ID */
|
|
GET_RELADDR_INC(addr, p);
|
|
|
|
STACK_ENSURE(1);
|
|
repeat_stk[mem] = GET_STACK_INDEX(stk);
|
|
STACK_PUSH_REPEAT(mem, p);
|
|
|
|
if (reg->repeat_range[mem].lower == 0) {
|
|
STACK_PUSH_ALT(p, s, sprev, pkeep);
|
|
p += addr;
|
|
}
|
|
}
|
|
MOP_OUT;
|
|
continue;
|
|
break;
|
|
|
|
case OP_REPEAT_INC: MOP_IN(OP_REPEAT_INC);
|
|
GET_MEMNUM_INC(mem, p); /* mem: OP_REPEAT ID */
|
|
si = repeat_stk[mem];
|
|
stkp = STACK_AT(si);
|
|
|
|
repeat_inc:
|
|
stkp->u.repeat.count++;
|
|
if (stkp->u.repeat.count >= reg->repeat_range[mem].upper) {
|
|
/* end of repeat. Nothing to do. */
|
|
}
|
|
else if (stkp->u.repeat.count >= reg->repeat_range[mem].lower) {
|
|
STACK_PUSH_ALT(p, s, sprev, pkeep);
|
|
p = STACK_AT(si)->u.repeat.pcode; /* Don't use stkp after PUSH. */
|
|
}
|
|
else {
|
|
p = stkp->u.repeat.pcode;
|
|
}
|
|
STACK_PUSH_REPEAT_INC(si);
|
|
MOP_OUT;
|
|
CHECK_INTERRUPT_IN_MATCH_AT;
|
|
continue;
|
|
break;
|
|
|
|
case OP_REPEAT_INC_SG: MOP_IN(OP_REPEAT_INC_SG);
|
|
GET_MEMNUM_INC(mem, p); /* mem: OP_REPEAT ID */
|
|
STACK_GET_REPEAT(mem, stkp);
|
|
si = GET_STACK_INDEX(stkp);
|
|
goto repeat_inc;
|
|
break;
|
|
|
|
case OP_REPEAT_INC_NG: MOP_IN(OP_REPEAT_INC_NG);
|
|
GET_MEMNUM_INC(mem, p); /* mem: OP_REPEAT ID */
|
|
si = repeat_stk[mem];
|
|
stkp = STACK_AT(si);
|
|
|
|
repeat_inc_ng:
|
|
stkp->u.repeat.count++;
|
|
if (stkp->u.repeat.count < reg->repeat_range[mem].upper) {
|
|
if (stkp->u.repeat.count >= reg->repeat_range[mem].lower) {
|
|
UChar* pcode = stkp->u.repeat.pcode;
|
|
|
|
STACK_PUSH_REPEAT_INC(si);
|
|
STACK_PUSH_ALT(pcode, s, sprev, pkeep);
|
|
}
|
|
else {
|
|
p = stkp->u.repeat.pcode;
|
|
STACK_PUSH_REPEAT_INC(si);
|
|
}
|
|
}
|
|
else if (stkp->u.repeat.count == reg->repeat_range[mem].upper) {
|
|
STACK_PUSH_REPEAT_INC(si);
|
|
}
|
|
MOP_OUT;
|
|
CHECK_INTERRUPT_IN_MATCH_AT;
|
|
continue;
|
|
break;
|
|
|
|
case OP_REPEAT_INC_NG_SG: MOP_IN(OP_REPEAT_INC_NG_SG);
|
|
GET_MEMNUM_INC(mem, p); /* mem: OP_REPEAT ID */
|
|
STACK_GET_REPEAT(mem, stkp);
|
|
si = GET_STACK_INDEX(stkp);
|
|
goto repeat_inc_ng;
|
|
break;
|
|
|
|
case OP_PUSH_POS: MOP_IN(OP_PUSH_POS);
|
|
STACK_PUSH_POS(s, sprev, pkeep);
|
|
MOP_OUT;
|
|
continue;
|
|
break;
|
|
|
|
case OP_POP_POS: MOP_IN(OP_POP_POS);
|
|
{
|
|
STACK_POS_END(stkp);
|
|
s = stkp->u.state.pstr;
|
|
sprev = stkp->u.state.pstr_prev;
|
|
}
|
|
MOP_OUT;
|
|
continue;
|
|
break;
|
|
|
|
case OP_PUSH_POS_NOT: MOP_IN(OP_PUSH_POS_NOT);
|
|
GET_RELADDR_INC(addr, p);
|
|
STACK_PUSH_POS_NOT(p + addr, s, sprev, pkeep);
|
|
MOP_OUT;
|
|
continue;
|
|
break;
|
|
|
|
case OP_FAIL_POS: MOP_IN(OP_FAIL_POS);
|
|
STACK_POP_TIL_POS_NOT;
|
|
goto fail;
|
|
break;
|
|
|
|
case OP_PUSH_STOP_BT: MOP_IN(OP_PUSH_STOP_BT);
|
|
STACK_PUSH_STOP_BT;
|
|
MOP_OUT;
|
|
continue;
|
|
break;
|
|
|
|
case OP_POP_STOP_BT: MOP_IN(OP_POP_STOP_BT);
|
|
STACK_STOP_BT_END;
|
|
MOP_OUT;
|
|
continue;
|
|
break;
|
|
|
|
case OP_LOOK_BEHIND: MOP_IN(OP_LOOK_BEHIND);
|
|
GET_LENGTH_INC(tlen, p);
|
|
s = (UChar* )ONIGENC_STEP_BACK(encode, str, s, end, (int )tlen);
|
|
if (IS_NULL(s)) goto fail;
|
|
sprev = (UChar* )onigenc_get_prev_char_head(encode, str, s, end);
|
|
MOP_OUT;
|
|
continue;
|
|
break;
|
|
|
|
case OP_PUSH_LOOK_BEHIND_NOT: MOP_IN(OP_PUSH_LOOK_BEHIND_NOT);
|
|
GET_RELADDR_INC(addr, p);
|
|
GET_LENGTH_INC(tlen, p);
|
|
q = (UChar* )ONIGENC_STEP_BACK(encode, str, s, end, (int )tlen);
|
|
if (IS_NULL(q)) {
|
|
/* too short case -> success. ex. /(?<!XXX)a/.match("a")
|
|
If you want to change to fail, replace following line. */
|
|
p += addr;
|
|
/* goto fail; */
|
|
}
|
|
else {
|
|
STACK_PUSH_LOOK_BEHIND_NOT(p + addr, s, sprev, pkeep);
|
|
s = q;
|
|
sprev = (UChar* )onigenc_get_prev_char_head(encode, str, s, end);
|
|
}
|
|
MOP_OUT;
|
|
continue;
|
|
break;
|
|
|
|
case OP_FAIL_LOOK_BEHIND_NOT: MOP_IN(OP_FAIL_LOOK_BEHIND_NOT);
|
|
STACK_POP_TIL_LOOK_BEHIND_NOT;
|
|
goto fail;
|
|
break;
|
|
|
|
#ifdef USE_SUBEXP_CALL
|
|
case OP_CALL: MOP_IN(OP_CALL);
|
|
GET_ABSADDR_INC(addr, p);
|
|
STACK_PUSH_CALL_FRAME(p);
|
|
p = reg->p + addr;
|
|
MOP_OUT;
|
|
continue;
|
|
break;
|
|
|
|
case OP_RETURN: MOP_IN(OP_RETURN);
|
|
STACK_RETURN(p);
|
|
STACK_PUSH_RETURN;
|
|
MOP_OUT;
|
|
continue;
|
|
break;
|
|
#endif
|
|
|
|
case OP_CONDITION: MOP_IN(OP_CONDITION);
|
|
GET_MEMNUM_INC(mem, p);
|
|
GET_RELADDR_INC(addr, p);
|
|
if ((mem > num_mem) ||
|
|
(mem_end_stk[mem] == INVALID_STACK_INDEX) ||
|
|
(mem_start_stk[mem] == INVALID_STACK_INDEX)) {
|
|
p += addr;
|
|
}
|
|
MOP_OUT;
|
|
continue;
|
|
break;
|
|
|
|
case OP_FINISH:
|
|
goto finish;
|
|
break;
|
|
|
|
fail:
|
|
MOP_OUT;
|
|
/* fall */
|
|
case OP_FAIL: MOP_IN(OP_FAIL);
|
|
STACK_POP;
|
|
p = stk->u.state.pcode;
|
|
s = stk->u.state.pstr;
|
|
sprev = stk->u.state.pstr_prev;
|
|
pkeep = stk->u.state.pkeep;
|
|
|
|
#ifdef USE_COMBINATION_EXPLOSION_CHECK
|
|
if (stk->u.state.state_check != 0) {
|
|
stk->type = STK_STATE_CHECK_MARK;
|
|
stk++;
|
|
}
|
|
#endif
|
|
|
|
MOP_OUT;
|
|
continue;
|
|
break;
|
|
|
|
default:
|
|
goto bytecode_error;
|
|
|
|
} /* end of switch */
|
|
sprev = sbegin;
|
|
} /* end of while(1) */
|
|
|
|
finish:
|
|
STACK_SAVE;
|
|
return best_len;
|
|
|
|
#ifdef ONIG_DEBUG
|
|
stack_error:
|
|
STACK_SAVE;
|
|
return ONIGERR_STACK_BUG;
|
|
#endif
|
|
|
|
bytecode_error:
|
|
STACK_SAVE;
|
|
return ONIGERR_UNDEFINED_BYTECODE;
|
|
|
|
unexpected_bytecode_error:
|
|
STACK_SAVE;
|
|
return ONIGERR_UNEXPECTED_BYTECODE;
|
|
}
|
|
|
|
|
|
static UChar*
|
|
slow_search(OnigEncoding enc, UChar* target, UChar* target_end,
|
|
const UChar* text, const UChar* text_end, UChar* text_range)
|
|
{
|
|
UChar *t, *p, *s, *end;
|
|
|
|
end = (UChar* )text_end;
|
|
end -= target_end - target - 1;
|
|
if (end > text_range)
|
|
end = text_range;
|
|
|
|
s = (UChar* )text;
|
|
|
|
if (enc->max_enc_len == enc->min_enc_len) {
|
|
int n = enc->max_enc_len;
|
|
|
|
while (s < end) {
|
|
if (*s == *target) {
|
|
p = s + 1;
|
|
t = target + 1;
|
|
if (target_end == t || memcmp(t, p, target_end - t) == 0)
|
|
return s;
|
|
}
|
|
s += n;
|
|
}
|
|
return (UChar* )NULL;
|
|
}
|
|
while (s < end) {
|
|
if (*s == *target) {
|
|
p = s + 1;
|
|
t = target + 1;
|
|
if (target_end == t || memcmp(t, p, target_end - t) == 0)
|
|
return s;
|
|
}
|
|
s += enclen(enc, s, text_end);
|
|
}
|
|
|
|
return (UChar* )NULL;
|
|
}
|
|
|
|
static int
|
|
str_lower_case_match(OnigEncoding enc, int case_fold_flag,
|
|
const UChar* t, const UChar* tend,
|
|
const UChar* p, const UChar* end)
|
|
{
|
|
int lowlen;
|
|
UChar *q, lowbuf[ONIGENC_MBC_CASE_FOLD_MAXLEN];
|
|
|
|
while (t < tend) {
|
|
lowlen = ONIGENC_MBC_CASE_FOLD(enc, case_fold_flag, &p, end, lowbuf);
|
|
q = lowbuf;
|
|
while (lowlen > 0) {
|
|
if (*t++ != *q++) return 0;
|
|
lowlen--;
|
|
}
|
|
}
|
|
|
|
return 1;
|
|
}
|
|
|
|
static UChar*
|
|
slow_search_ic(OnigEncoding enc, int case_fold_flag,
|
|
UChar* target, UChar* target_end,
|
|
const UChar* text, const UChar* text_end, UChar* text_range)
|
|
{
|
|
UChar *s, *end;
|
|
|
|
end = (UChar* )text_end;
|
|
end -= target_end - target - 1;
|
|
if (end > text_range)
|
|
end = text_range;
|
|
|
|
s = (UChar* )text;
|
|
|
|
while (s < end) {
|
|
if (str_lower_case_match(enc, case_fold_flag, target, target_end,
|
|
s, text_end))
|
|
return s;
|
|
|
|
s += enclen(enc, s, text_end);
|
|
}
|
|
|
|
return (UChar* )NULL;
|
|
}
|
|
|
|
static UChar*
|
|
slow_search_backward(OnigEncoding enc, UChar* target, UChar* target_end,
|
|
const UChar* text, const UChar* adjust_text,
|
|
const UChar* text_end, const UChar* text_start)
|
|
{
|
|
UChar *t, *p, *s;
|
|
|
|
s = (UChar* )text_end;
|
|
s -= (target_end - target);
|
|
if (s > text_start)
|
|
s = (UChar* )text_start;
|
|
else
|
|
s = ONIGENC_LEFT_ADJUST_CHAR_HEAD(enc, adjust_text, s, text_end);
|
|
|
|
while (s >= text) {
|
|
if (*s == *target) {
|
|
p = s + 1;
|
|
t = target + 1;
|
|
while (t < target_end) {
|
|
if (*t != *p++)
|
|
break;
|
|
t++;
|
|
}
|
|
if (t == target_end)
|
|
return s;
|
|
}
|
|
s = (UChar* )onigenc_get_prev_char_head(enc, adjust_text, s, text_end);
|
|
}
|
|
|
|
return (UChar* )NULL;
|
|
}
|
|
|
|
static UChar*
|
|
slow_search_backward_ic(OnigEncoding enc, int case_fold_flag,
|
|
UChar* target, UChar* target_end,
|
|
const UChar* text, const UChar* adjust_text,
|
|
const UChar* text_end, const UChar* text_start)
|
|
{
|
|
UChar *s;
|
|
|
|
s = (UChar* )text_end;
|
|
s -= (target_end - target);
|
|
if (s > text_start)
|
|
s = (UChar* )text_start;
|
|
else
|
|
s = ONIGENC_LEFT_ADJUST_CHAR_HEAD(enc, adjust_text, s, text_end);
|
|
|
|
while (s >= text) {
|
|
if (str_lower_case_match(enc, case_fold_flag,
|
|
target, target_end, s, text_end))
|
|
return s;
|
|
|
|
s = (UChar* )onigenc_get_prev_char_head(enc, adjust_text, s, text_end);
|
|
}
|
|
|
|
return (UChar* )NULL;
|
|
}
|
|
|
|
#ifndef USE_SUNDAY_QUICK_SEARCH
|
|
/* Boyer-Moore-Horspool search applied to a multibyte string */
|
|
static UChar*
|
|
bm_search_notrev(regex_t* reg, const UChar* target, const UChar* target_end,
|
|
const UChar* text, const UChar* text_end,
|
|
const UChar* text_range)
|
|
{
|
|
const UChar *s, *se, *t, *p, *end;
|
|
const UChar *tail;
|
|
ptrdiff_t skip, tlen1;
|
|
|
|
#ifdef ONIG_DEBUG_SEARCH
|
|
fprintf(stderr, "bm_search_notrev: text: %"PRIuPTR" (%p), text_end: %"PRIuPTR" (%p), text_range: %"PRIuPTR" (%p)\n",
|
|
text, text, text_end, text_end, text_range, text_range);
|
|
#endif
|
|
|
|
tail = target_end - 1;
|
|
tlen1 = tail - target;
|
|
end = text_range;
|
|
if (end + tlen1 > text_end)
|
|
end = text_end - tlen1;
|
|
|
|
s = text;
|
|
|
|
if (IS_NULL(reg->int_map)) {
|
|
while (s < end) {
|
|
p = se = s + tlen1;
|
|
t = tail;
|
|
while (*p == *t) {
|
|
if (t == target) return (UChar* )s;
|
|
p--; t--;
|
|
}
|
|
skip = reg->map[*se];
|
|
t = s;
|
|
do {
|
|
s += enclen(reg->enc, s, end);
|
|
} while ((s - t) < skip && s < end);
|
|
}
|
|
}
|
|
else {
|
|
while (s < end) {
|
|
p = se = s + tlen1;
|
|
t = tail;
|
|
while (*p == *t) {
|
|
if (t == target) return (UChar* )s;
|
|
p--; t--;
|
|
}
|
|
skip = reg->int_map[*se];
|
|
t = s;
|
|
do {
|
|
s += enclen(reg->enc, s, end);
|
|
} while ((s - t) < skip && s < end);
|
|
}
|
|
}
|
|
|
|
return (UChar* )NULL;
|
|
}
|
|
|
|
/* Boyer-Moore-Horspool search */
|
|
static UChar*
|
|
bm_search(regex_t* reg, const UChar* target, const UChar* target_end,
|
|
const UChar* text, const UChar* text_end, const UChar* text_range)
|
|
{
|
|
const UChar *s, *t, *p, *end;
|
|
const UChar *tail;
|
|
|
|
#ifdef ONIG_DEBUG_SEARCH
|
|
fprintf(stderr, "bm_search: text: %"PRIuPTR", text_end: %"PRIuPTR", text_range: %"PRIuPTR"\n",
|
|
text, text_end, text_range);
|
|
#endif
|
|
|
|
end = text_range + (target_end - target) - 1;
|
|
if (end > text_end)
|
|
end = text_end;
|
|
|
|
tail = target_end - 1;
|
|
s = text + (target_end - target) - 1;
|
|
if (IS_NULL(reg->int_map)) {
|
|
while (s < end) {
|
|
p = s;
|
|
t = tail;
|
|
#ifdef ONIG_DEBUG_SEARCH
|
|
fprintf(stderr, "bm_search_loop: pos: %d %s\n",
|
|
(int)(s - text), s);
|
|
#endif
|
|
while (*p == *t) {
|
|
if (t == target) return (UChar* )p;
|
|
p--; t--;
|
|
}
|
|
s += reg->map[*s];
|
|
}
|
|
}
|
|
else { /* see int_map[] */
|
|
while (s < end) {
|
|
p = s;
|
|
t = tail;
|
|
while (*p == *t) {
|
|
if (t == target) return (UChar* )p;
|
|
p--; t--;
|
|
}
|
|
s += reg->int_map[*s];
|
|
}
|
|
}
|
|
return (UChar* )NULL;
|
|
}
|
|
|
|
/* Boyer-Moore-Horspool search applied to a multibyte string (ignore case) */
|
|
static UChar*
|
|
bm_search_notrev_ic(regex_t* reg, const UChar* target, const UChar* target_end,
|
|
const UChar* text, const UChar* text_end,
|
|
const UChar* text_range)
|
|
{
|
|
const UChar *s, *se, *t, *end;
|
|
const UChar *tail;
|
|
ptrdiff_t skip, tlen1;
|
|
OnigEncoding enc = reg->enc;
|
|
int case_fold_flag = reg->case_fold_flag;
|
|
|
|
#ifdef ONIG_DEBUG_SEARCH
|
|
fprintf(stderr, "bm_search_notrev_ic: text: %d (%p), text_end: %d (%p), text_range: %d (%p)\n",
|
|
(int )text, text, (int )text_end, text_end, (int )text_range, text_range);
|
|
#endif
|
|
|
|
tail = target_end - 1;
|
|
tlen1 = tail - target;
|
|
end = text_range;
|
|
if (end + tlen1 > text_end)
|
|
end = text_end - tlen1;
|
|
|
|
s = text;
|
|
|
|
if (IS_NULL(reg->int_map)) {
|
|
while (s < end) {
|
|
se = s + tlen1;
|
|
if (str_lower_case_match(enc, case_fold_flag, target, target_end,
|
|
s, se + 1))
|
|
return (UChar* )s;
|
|
skip = reg->map[*se];
|
|
t = s;
|
|
do {
|
|
s += enclen(reg->enc, s, end);
|
|
} while ((s - t) < skip && s < end);
|
|
}
|
|
}
|
|
else {
|
|
while (s < end) {
|
|
se = s + tlen1;
|
|
if (str_lower_case_match(enc, case_fold_flag, target, target_end,
|
|
s, se + 1))
|
|
return (UChar* )s;
|
|
skip = reg->int_map[*se];
|
|
t = s;
|
|
do {
|
|
s += enclen(reg->enc, s, end);
|
|
} while ((s - t) < skip && s < end);
|
|
}
|
|
}
|
|
|
|
return (UChar* )NULL;
|
|
}
|
|
|
|
/* Boyer-Moore-Horspool search (ignore case) */
|
|
static UChar*
|
|
bm_search_ic(regex_t* reg, const UChar* target, const UChar* target_end,
|
|
const UChar* text, const UChar* text_end, const UChar* text_range)
|
|
{
|
|
const UChar *s, *p, *end;
|
|
const UChar *tail;
|
|
OnigEncoding enc = reg->enc;
|
|
int case_fold_flag = reg->case_fold_flag;
|
|
|
|
#ifdef ONIG_DEBUG_SEARCH
|
|
fprintf(stderr, "bm_search_ic: text: %d (%p), text_end: %d (%p), text_range: %d (%p)\n",
|
|
(int )text, text, (int )text_end, text_end, (int )text_range, text_range);
|
|
#endif
|
|
|
|
end = text_range + (target_end - target) - 1;
|
|
if (end > text_end)
|
|
end = text_end;
|
|
|
|
tail = target_end - 1;
|
|
s = text + (target_end - target) - 1;
|
|
if (IS_NULL(reg->int_map)) {
|
|
while (s < end) {
|
|
p = s - (target_end - target) + 1;
|
|
if (str_lower_case_match(enc, case_fold_flag, target, target_end,
|
|
p, s + 1))
|
|
return (UChar* )p;
|
|
s += reg->map[*s];
|
|
}
|
|
}
|
|
else { /* see int_map[] */
|
|
while (s < end) {
|
|
p = s - (target_end - target) + 1;
|
|
if (str_lower_case_match(enc, case_fold_flag, target, target_end,
|
|
p, s + 1))
|
|
return (UChar* )p;
|
|
s += reg->int_map[*s];
|
|
}
|
|
}
|
|
return (UChar* )NULL;
|
|
}
|
|
|
|
#else /* USE_SUNDAY_QUICK_SEARCH */
|
|
|
|
/* Sunday's quick search applied to a multibyte string */
|
|
static UChar*
|
|
bm_search_notrev(regex_t* reg, const UChar* target, const UChar* target_end,
|
|
const UChar* text, const UChar* text_end,
|
|
const UChar* text_range)
|
|
{
|
|
const UChar *s, *se, *t, *p, *end;
|
|
const UChar *tail;
|
|
ptrdiff_t skip, tlen1;
|
|
OnigEncoding enc = reg->enc;
|
|
|
|
#ifdef ONIG_DEBUG_SEARCH
|
|
fprintf(stderr, "bm_search_notrev: text: %d (%p), text_end: %d (%p), text_range: %d (%p)\n",
|
|
(int )text, text, (int )text_end, text_end, (int )text_range, text_range);
|
|
#endif
|
|
|
|
tail = target_end - 1;
|
|
tlen1 = tail - target;
|
|
end = text_range;
|
|
if (end + tlen1 > text_end)
|
|
end = text_end - tlen1;
|
|
|
|
s = text;
|
|
|
|
if (IS_NULL(reg->int_map)) {
|
|
while (s < end) {
|
|
p = se = s + tlen1;
|
|
t = tail;
|
|
while (*p == *t) {
|
|
if (t == target) return (UChar* )s;
|
|
p--; t--;
|
|
}
|
|
if (s + 1 >= end) break;
|
|
skip = reg->map[se[1]];
|
|
t = s;
|
|
do {
|
|
s += enclen(enc, s, end);
|
|
} while ((s - t) < skip && s < end);
|
|
}
|
|
}
|
|
else {
|
|
while (s < end) {
|
|
p = se = s + tlen1;
|
|
t = tail;
|
|
while (*p == *t) {
|
|
if (t == target) return (UChar* )s;
|
|
p--; t--;
|
|
}
|
|
if (s + 1 >= end) break;
|
|
skip = reg->int_map[se[1]];
|
|
t = s;
|
|
do {
|
|
s += enclen(enc, s, end);
|
|
} while ((s - t) < skip && s < end);
|
|
}
|
|
}
|
|
|
|
return (UChar* )NULL;
|
|
}
|
|
|
|
/* Sunday's quick search */
|
|
static UChar*
|
|
bm_search(regex_t* reg, const UChar* target, const UChar* target_end,
|
|
const UChar* text, const UChar* text_end, const UChar* text_range)
|
|
{
|
|
const UChar *s, *t, *p, *end;
|
|
const UChar *tail;
|
|
ptrdiff_t tlen1;
|
|
|
|
tail = target_end - 1;
|
|
tlen1 = tail - target;
|
|
end = text_range + tlen1;
|
|
if (end > text_end)
|
|
end = text_end;
|
|
|
|
s = text + tlen1;
|
|
if (IS_NULL(reg->int_map)) {
|
|
while (s < end) {
|
|
p = s;
|
|
t = tail;
|
|
while (*p == *t) {
|
|
if (t == target) return (UChar* )p;
|
|
p--; t--;
|
|
}
|
|
if (s + 1 >= end) break;
|
|
s += reg->map[s[1]];
|
|
}
|
|
}
|
|
else { /* see int_map[] */
|
|
while (s < end) {
|
|
p = s;
|
|
t = tail;
|
|
while (*p == *t) {
|
|
if (t == target) return (UChar* )p;
|
|
p--; t--;
|
|
}
|
|
if (s + 1 >= end) break;
|
|
s += reg->int_map[s[1]];
|
|
}
|
|
}
|
|
return (UChar* )NULL;
|
|
}
|
|
|
|
/* Sunday's quick search applied to a multibyte string (ignore case) */
|
|
static UChar*
|
|
bm_search_notrev_ic(regex_t* reg, const UChar* target, const UChar* target_end,
|
|
const UChar* text, const UChar* text_end,
|
|
const UChar* text_range)
|
|
{
|
|
const UChar *s, *se, *t, *end;
|
|
const UChar *tail;
|
|
ptrdiff_t skip, tlen1;
|
|
OnigEncoding enc = reg->enc;
|
|
int case_fold_flag = reg->case_fold_flag;
|
|
|
|
#ifdef ONIG_DEBUG_SEARCH
|
|
fprintf(stderr, "bm_search_notrev_ic: text: %d (%p), text_end: %d (%p), text_range: %d (%p)\n",
|
|
(int )text, text, (int )text_end, text_end, (int )text_range, text_range);
|
|
#endif
|
|
|
|
tail = target_end - 1;
|
|
tlen1 = tail - target;
|
|
end = text_range;
|
|
if (end + tlen1 > text_end)
|
|
end = text_end - tlen1;
|
|
|
|
s = text;
|
|
|
|
if (IS_NULL(reg->int_map)) {
|
|
while (s < end) {
|
|
se = s + tlen1;
|
|
if (str_lower_case_match(enc, case_fold_flag, target, target_end,
|
|
s, se + 1))
|
|
return (UChar* )s;
|
|
if (s + 1 >= end) break;
|
|
skip = reg->map[se[1]];
|
|
t = s;
|
|
do {
|
|
s += enclen(enc, s, end);
|
|
} while ((s - t) < skip && s < end);
|
|
}
|
|
}
|
|
else {
|
|
while (s < end) {
|
|
se = s + tlen1;
|
|
if (str_lower_case_match(enc, case_fold_flag, target, target_end,
|
|
s, se + 1))
|
|
return (UChar* )s;
|
|
if (s + 1 >= end) break;
|
|
skip = reg->int_map[se[1]];
|
|
t = s;
|
|
do {
|
|
s += enclen(enc, s, end);
|
|
} while ((s - t) < skip && s < end);
|
|
}
|
|
}
|
|
|
|
return (UChar* )NULL;
|
|
}
|
|
|
|
/* Sunday's quick search (ignore case) */
|
|
static UChar*
|
|
bm_search_ic(regex_t* reg, const UChar* target, const UChar* target_end,
|
|
const UChar* text, const UChar* text_end, const UChar* text_range)
|
|
{
|
|
const UChar *s, *p, *end;
|
|
const UChar *tail;
|
|
ptrdiff_t tlen1;
|
|
OnigEncoding enc = reg->enc;
|
|
int case_fold_flag = reg->case_fold_flag;
|
|
|
|
#ifdef ONIG_DEBUG_SEARCH
|
|
fprintf(stderr, "bm_search_ic: text: %d (%p), text_end: %d (%p), text_range: %d (%p)\n",
|
|
(int )text, text, (int )text_end, text_end, (int )text_range, text_range);
|
|
#endif
|
|
|
|
tail = target_end - 1;
|
|
tlen1 = tail - target;
|
|
end = text_range + tlen1;
|
|
if (end > text_end)
|
|
end = text_end;
|
|
|
|
s = text + tlen1;
|
|
if (IS_NULL(reg->int_map)) {
|
|
while (s < end) {
|
|
p = s - tlen1;
|
|
if (str_lower_case_match(enc, case_fold_flag, target, target_end,
|
|
p, s + 1))
|
|
return (UChar* )p;
|
|
if (s + 1 >= end) break;
|
|
s += reg->map[s[1]];
|
|
}
|
|
}
|
|
else { /* see int_map[] */
|
|
while (s < end) {
|
|
p = s - tlen1;
|
|
if (str_lower_case_match(enc, case_fold_flag, target, target_end,
|
|
p, s + 1))
|
|
return (UChar* )p;
|
|
if (s + 1 >= end) break;
|
|
s += reg->int_map[s[1]];
|
|
}
|
|
}
|
|
return (UChar* )NULL;
|
|
}
|
|
#endif /* USE_SUNDAY_QUICK_SEARCH */
|
|
|
|
static int
|
|
set_bm_backward_skip(UChar* s, UChar* end, OnigEncoding enc ARG_UNUSED,
|
|
int** skip)
|
|
{
|
|
int i, len;
|
|
|
|
if (IS_NULL(*skip)) {
|
|
*skip = (int* )xmalloc(sizeof(int) * ONIG_CHAR_TABLE_SIZE);
|
|
if (IS_NULL(*skip)) return ONIGERR_MEMORY;
|
|
}
|
|
|
|
len = (int )(end - s);
|
|
for (i = 0; i < ONIG_CHAR_TABLE_SIZE; i++)
|
|
(*skip)[i] = len;
|
|
|
|
for (i = len - 1; i > 0; i--)
|
|
(*skip)[s[i]] = i;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static UChar*
|
|
bm_search_backward(regex_t* reg, const UChar* target, const UChar* target_end,
|
|
const UChar* text, const UChar* adjust_text,
|
|
const UChar* text_end, const UChar* text_start)
|
|
{
|
|
const UChar *s, *t, *p;
|
|
|
|
s = text_end - (target_end - target);
|
|
if (text_start < s)
|
|
s = text_start;
|
|
else
|
|
s = ONIGENC_LEFT_ADJUST_CHAR_HEAD(reg->enc, adjust_text, s, text_end);
|
|
|
|
while (s >= text) {
|
|
p = s;
|
|
t = target;
|
|
while (t < target_end && *p == *t) {
|
|
p++; t++;
|
|
}
|
|
if (t == target_end)
|
|
return (UChar* )s;
|
|
|
|
s -= reg->int_map_backward[*s];
|
|
s = ONIGENC_LEFT_ADJUST_CHAR_HEAD(reg->enc, adjust_text, s, text_end);
|
|
}
|
|
|
|
return (UChar* )NULL;
|
|
}
|
|
|
|
static UChar*
|
|
map_search(OnigEncoding enc, UChar map[],
|
|
const UChar* text, const UChar* text_range, const UChar* text_end)
|
|
{
|
|
const UChar *s = text;
|
|
|
|
while (s < text_range) {
|
|
if (map[*s]) return (UChar* )s;
|
|
|
|
s += enclen(enc, s, text_end);
|
|
}
|
|
return (UChar* )NULL;
|
|
}
|
|
|
|
static UChar*
|
|
map_search_backward(OnigEncoding enc, UChar map[],
|
|
const UChar* text, const UChar* adjust_text,
|
|
const UChar* text_start, const UChar* text_end)
|
|
{
|
|
const UChar *s = text_start;
|
|
|
|
while (s >= text) {
|
|
if (map[*s]) return (UChar* )s;
|
|
|
|
s = onigenc_get_prev_char_head(enc, adjust_text, s, text_end);
|
|
}
|
|
return (UChar* )NULL;
|
|
}
|
|
|
|
extern OnigPosition
|
|
onig_match(regex_t* reg, const UChar* str, const UChar* end, const UChar* at, OnigRegion* region,
|
|
OnigOptionType option)
|
|
{
|
|
ptrdiff_t r;
|
|
UChar *prev;
|
|
OnigMatchArg msa;
|
|
|
|
#if defined(USE_RECOMPILE_API) && defined(USE_MULTI_THREAD_SYSTEM)
|
|
start:
|
|
THREAD_ATOMIC_START;
|
|
if (ONIG_STATE(reg) >= ONIG_STATE_NORMAL) {
|
|
ONIG_STATE_INC(reg);
|
|
if (IS_NOT_NULL(reg->chain) && ONIG_STATE(reg) == ONIG_STATE_NORMAL) {
|
|
onig_chain_reduce(reg);
|
|
ONIG_STATE_INC(reg);
|
|
}
|
|
}
|
|
else {
|
|
int n;
|
|
|
|
THREAD_ATOMIC_END;
|
|
n = 0;
|
|
while (ONIG_STATE(reg) < ONIG_STATE_NORMAL) {
|
|
if (++n > THREAD_PASS_LIMIT_COUNT)
|
|
return ONIGERR_OVER_THREAD_PASS_LIMIT_COUNT;
|
|
THREAD_PASS;
|
|
}
|
|
goto start;
|
|
}
|
|
THREAD_ATOMIC_END;
|
|
#endif /* USE_RECOMPILE_API && USE_MULTI_THREAD_SYSTEM */
|
|
|
|
MATCH_ARG_INIT(msa, option, region, at, at);
|
|
#ifdef USE_COMBINATION_EXPLOSION_CHECK
|
|
{
|
|
int offset = at - str;
|
|
STATE_CHECK_BUFF_INIT(msa, end - str, offset, reg->num_comb_exp_check);
|
|
}
|
|
#endif
|
|
|
|
if (region
|
|
#ifdef USE_POSIX_API_REGION_OPTION
|
|
&& !IS_POSIX_REGION(option)
|
|
#endif
|
|
) {
|
|
r = onig_region_resize_clear(region, reg->num_mem + 1);
|
|
}
|
|
else
|
|
r = 0;
|
|
|
|
if (r == 0) {
|
|
prev = (UChar* )onigenc_get_prev_char_head(reg->enc, str, at, end);
|
|
r = match_at(reg, str, end,
|
|
#ifdef USE_MATCH_RANGE_MUST_BE_INSIDE_OF_SPECIFIED_RANGE
|
|
end,
|
|
#endif
|
|
at, prev, &msa);
|
|
}
|
|
|
|
MATCH_ARG_FREE(msa);
|
|
ONIG_STATE_DEC_THREAD(reg);
|
|
return r;
|
|
}
|
|
|
|
static int
|
|
forward_search_range(regex_t* reg, const UChar* str, const UChar* end, UChar* s,
|
|
UChar* range, UChar** low, UChar** high, UChar** low_prev)
|
|
{
|
|
UChar *p, *pprev = (UChar* )NULL;
|
|
|
|
#ifdef ONIG_DEBUG_SEARCH
|
|
fprintf(stderr, "forward_search_range: str: %"PRIuPTR" (%p), end: %"PRIuPTR" (%p), s: %"PRIuPTR" (%p), range: %"PRIuPTR" (%p)\n",
|
|
str, str, end, end, s, s, range, range);
|
|
#endif
|
|
|
|
p = s;
|
|
if (reg->dmin > 0) {
|
|
if (ONIGENC_IS_SINGLEBYTE(reg->enc)) {
|
|
p += reg->dmin;
|
|
}
|
|
else {
|
|
UChar *q = p + reg->dmin;
|
|
while (p < q) p += enclen(reg->enc, p, end);
|
|
}
|
|
}
|
|
|
|
retry:
|
|
switch (reg->optimize) {
|
|
case ONIG_OPTIMIZE_EXACT:
|
|
p = slow_search(reg->enc, reg->exact, reg->exact_end, p, end, range);
|
|
break;
|
|
case ONIG_OPTIMIZE_EXACT_IC:
|
|
p = slow_search_ic(reg->enc, reg->case_fold_flag,
|
|
reg->exact, reg->exact_end, p, end, range);
|
|
break;
|
|
|
|
case ONIG_OPTIMIZE_EXACT_BM:
|
|
p = bm_search(reg, reg->exact, reg->exact_end, p, end, range);
|
|
break;
|
|
|
|
case ONIG_OPTIMIZE_EXACT_BM_NOT_REV:
|
|
p = bm_search_notrev(reg, reg->exact, reg->exact_end, p, end, range);
|
|
break;
|
|
|
|
case ONIG_OPTIMIZE_EXACT_BM_IC:
|
|
p = bm_search_ic(reg, reg->exact, reg->exact_end, p, end, range);
|
|
break;
|
|
|
|
case ONIG_OPTIMIZE_EXACT_BM_NOT_REV_IC:
|
|
p = bm_search_notrev_ic(reg, reg->exact, reg->exact_end, p, end, range);
|
|
break;
|
|
|
|
case ONIG_OPTIMIZE_MAP:
|
|
p = map_search(reg->enc, reg->map, p, range, end);
|
|
break;
|
|
}
|
|
|
|
if (p && p < range) {
|
|
if (p - reg->dmin < s) {
|
|
retry_gate:
|
|
pprev = p;
|
|
p += enclen(reg->enc, p, end);
|
|
goto retry;
|
|
}
|
|
|
|
if (reg->sub_anchor) {
|
|
UChar* prev;
|
|
|
|
switch (reg->sub_anchor) {
|
|
case ANCHOR_BEGIN_LINE:
|
|
if (!ON_STR_BEGIN(p)) {
|
|
prev = onigenc_get_prev_char_head(reg->enc,
|
|
(pprev ? pprev : str), p, end);
|
|
if (!ONIGENC_IS_MBC_NEWLINE_EX(reg->enc, prev, str, end, reg->options, 0))
|
|
goto retry_gate;
|
|
}
|
|
break;
|
|
|
|
case ANCHOR_END_LINE:
|
|
if (ON_STR_END(p)) {
|
|
#ifndef USE_NEWLINE_AT_END_OF_STRING_HAS_EMPTY_LINE
|
|
prev = (UChar* )onigenc_get_prev_char_head(reg->enc,
|
|
(pprev ? pprev : str), p);
|
|
if (prev && ONIGENC_IS_MBC_NEWLINE_EX(reg->enc, prev, str, end, reg->options, 1))
|
|
goto retry_gate;
|
|
#endif
|
|
}
|
|
else if (! ONIGENC_IS_MBC_NEWLINE_EX(reg->enc, p, str, end, reg->options, 1))
|
|
goto retry_gate;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (reg->dmax == 0) {
|
|
*low = p;
|
|
if (low_prev) {
|
|
if (*low > s)
|
|
*low_prev = onigenc_get_prev_char_head(reg->enc, s, p, end);
|
|
else
|
|
*low_prev = onigenc_get_prev_char_head(reg->enc,
|
|
(pprev ? pprev : str), p, end);
|
|
}
|
|
}
|
|
else {
|
|
if (reg->dmax != ONIG_INFINITE_DISTANCE) {
|
|
*low = p - reg->dmax;
|
|
if (*low > s) {
|
|
*low = onigenc_get_right_adjust_char_head_with_prev(reg->enc, s,
|
|
*low, end, (const UChar** )low_prev);
|
|
if (low_prev && IS_NULL(*low_prev))
|
|
*low_prev = onigenc_get_prev_char_head(reg->enc,
|
|
(pprev ? pprev : s), *low, end);
|
|
}
|
|
else {
|
|
if (low_prev)
|
|
*low_prev = onigenc_get_prev_char_head(reg->enc,
|
|
(pprev ? pprev : str), *low, end);
|
|
}
|
|
}
|
|
}
|
|
/* no needs to adjust *high, *high is used as range check only */
|
|
*high = p - reg->dmin;
|
|
|
|
#ifdef ONIG_DEBUG_SEARCH
|
|
fprintf(stderr,
|
|
"forward_search_range success: low: %d, high: %d, dmin: %d, dmax: %d\n",
|
|
(int )(*low - str), (int )(*high - str), reg->dmin, reg->dmax);
|
|
#endif
|
|
return 1; /* success */
|
|
}
|
|
|
|
return 0; /* fail */
|
|
}
|
|
|
|
static int set_bm_backward_skip P_((UChar* s, UChar* end, OnigEncoding enc,
|
|
int** skip));
|
|
|
|
#define BM_BACKWARD_SEARCH_LENGTH_THRESHOLD 100
|
|
|
|
static int
|
|
backward_search_range(regex_t* reg, const UChar* str, const UChar* end,
|
|
UChar* s, const UChar* range, UChar* adjrange,
|
|
UChar** low, UChar** high)
|
|
{
|
|
int r;
|
|
UChar *p;
|
|
|
|
range += reg->dmin;
|
|
p = s;
|
|
|
|
retry:
|
|
switch (reg->optimize) {
|
|
case ONIG_OPTIMIZE_EXACT:
|
|
exact_method:
|
|
p = slow_search_backward(reg->enc, reg->exact, reg->exact_end,
|
|
range, adjrange, end, p);
|
|
break;
|
|
|
|
case ONIG_OPTIMIZE_EXACT_IC:
|
|
case ONIG_OPTIMIZE_EXACT_BM_IC:
|
|
case ONIG_OPTIMIZE_EXACT_BM_NOT_REV_IC:
|
|
p = slow_search_backward_ic(reg->enc, reg->case_fold_flag,
|
|
reg->exact, reg->exact_end,
|
|
range, adjrange, end, p);
|
|
break;
|
|
|
|
case ONIG_OPTIMIZE_EXACT_BM:
|
|
case ONIG_OPTIMIZE_EXACT_BM_NOT_REV:
|
|
if (IS_NULL(reg->int_map_backward)) {
|
|
if (s - range < BM_BACKWARD_SEARCH_LENGTH_THRESHOLD)
|
|
goto exact_method;
|
|
|
|
r = set_bm_backward_skip(reg->exact, reg->exact_end, reg->enc,
|
|
&(reg->int_map_backward));
|
|
if (r) return r;
|
|
}
|
|
p = bm_search_backward(reg, reg->exact, reg->exact_end, range, adjrange,
|
|
end, p);
|
|
break;
|
|
|
|
case ONIG_OPTIMIZE_MAP:
|
|
p = map_search_backward(reg->enc, reg->map, range, adjrange, p, end);
|
|
break;
|
|
}
|
|
|
|
if (p) {
|
|
if (reg->sub_anchor) {
|
|
UChar* prev;
|
|
|
|
switch (reg->sub_anchor) {
|
|
case ANCHOR_BEGIN_LINE:
|
|
if (!ON_STR_BEGIN(p)) {
|
|
prev = onigenc_get_prev_char_head(reg->enc, str, p, end);
|
|
if (!ONIGENC_IS_MBC_NEWLINE_EX(reg->enc, prev, str, end, reg->options, 0)) {
|
|
p = prev;
|
|
goto retry;
|
|
}
|
|
}
|
|
break;
|
|
|
|
case ANCHOR_END_LINE:
|
|
if (ON_STR_END(p)) {
|
|
#ifndef USE_NEWLINE_AT_END_OF_STRING_HAS_EMPTY_LINE
|
|
prev = onigenc_get_prev_char_head(reg->enc, adjrange, p);
|
|
if (IS_NULL(prev)) goto fail;
|
|
if (ONIGENC_IS_MBC_NEWLINE_EX(reg->enc, prev, str, end, reg->options, 1)) {
|
|
p = prev;
|
|
goto retry;
|
|
}
|
|
#endif
|
|
}
|
|
else if (! ONIGENC_IS_MBC_NEWLINE_EX(reg->enc, p, str, end, reg->options, 1)) {
|
|
p = onigenc_get_prev_char_head(reg->enc, adjrange, p, end);
|
|
if (IS_NULL(p)) goto fail;
|
|
goto retry;
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
/* no needs to adjust *high, *high is used as range check only */
|
|
if (reg->dmax != ONIG_INFINITE_DISTANCE) {
|
|
*low = p - reg->dmax;
|
|
*high = p - reg->dmin;
|
|
*high = onigenc_get_right_adjust_char_head(reg->enc, adjrange, *high, end);
|
|
}
|
|
|
|
#ifdef ONIG_DEBUG_SEARCH
|
|
fprintf(stderr, "backward_search_range: low: %d, high: %d\n",
|
|
(int )(*low - str), (int )(*high - str));
|
|
#endif
|
|
return 1; /* success */
|
|
}
|
|
|
|
fail:
|
|
#ifdef ONIG_DEBUG_SEARCH
|
|
fprintf(stderr, "backward_search_range: fail.\n");
|
|
#endif
|
|
return 0; /* fail */
|
|
}
|
|
|
|
|
|
extern OnigPosition
|
|
onig_search(regex_t* reg, const UChar* str, const UChar* end,
|
|
const UChar* start, const UChar* range, OnigRegion* region, OnigOptionType option)
|
|
{
|
|
return onig_search_gpos(reg, str, end, start, start, range, region, option);
|
|
}
|
|
|
|
extern OnigPosition
|
|
onig_search_gpos(regex_t* reg, const UChar* str, const UChar* end,
|
|
const UChar* global_pos,
|
|
const UChar* start, const UChar* range, OnigRegion* region, OnigOptionType option)
|
|
{
|
|
ptrdiff_t r;
|
|
UChar *s, *prev;
|
|
OnigMatchArg msa;
|
|
#ifdef USE_MATCH_RANGE_MUST_BE_INSIDE_OF_SPECIFIED_RANGE
|
|
const UChar *orig_start = start;
|
|
const UChar *orig_range = range;
|
|
#endif
|
|
|
|
#if defined(USE_RECOMPILE_API) && defined(USE_MULTI_THREAD_SYSTEM)
|
|
start:
|
|
THREAD_ATOMIC_START;
|
|
if (ONIG_STATE(reg) >= ONIG_STATE_NORMAL) {
|
|
ONIG_STATE_INC(reg);
|
|
if (IS_NOT_NULL(reg->chain) && ONIG_STATE(reg) == ONIG_STATE_NORMAL) {
|
|
onig_chain_reduce(reg);
|
|
ONIG_STATE_INC(reg);
|
|
}
|
|
}
|
|
else {
|
|
int n;
|
|
|
|
THREAD_ATOMIC_END;
|
|
n = 0;
|
|
while (ONIG_STATE(reg) < ONIG_STATE_NORMAL) {
|
|
if (++n > THREAD_PASS_LIMIT_COUNT)
|
|
return ONIGERR_OVER_THREAD_PASS_LIMIT_COUNT;
|
|
THREAD_PASS;
|
|
}
|
|
goto start;
|
|
}
|
|
THREAD_ATOMIC_END;
|
|
#endif /* USE_RECOMPILE_API && USE_MULTI_THREAD_SYSTEM */
|
|
|
|
#ifdef ONIG_DEBUG_SEARCH
|
|
fprintf(stderr,
|
|
"onig_search (entry point): str: %"PRIuPTR" (%p), end: %"PRIuPTR", start: %"PRIuPTR", range: %"PRIuPTR"\n",
|
|
str, str, end - str, start - str, range - str);
|
|
#endif
|
|
|
|
if (region
|
|
#ifdef USE_POSIX_API_REGION_OPTION
|
|
&& !IS_POSIX_REGION(option)
|
|
#endif
|
|
) {
|
|
r = onig_region_resize_clear(region, reg->num_mem + 1);
|
|
if (r) goto finish_no_msa;
|
|
}
|
|
|
|
if (start > end || start < str) goto mismatch_no_msa;
|
|
|
|
|
|
#ifdef USE_MATCH_RANGE_MUST_BE_INSIDE_OF_SPECIFIED_RANGE
|
|
#ifdef USE_FIND_LONGEST_SEARCH_ALL_OF_RANGE
|
|
#define MATCH_AND_RETURN_CHECK(upper_range) \
|
|
r = match_at(reg, str, end, (upper_range), s, prev, &msa); \
|
|
if (r != ONIG_MISMATCH) {\
|
|
if (r >= 0) {\
|
|
if (! IS_FIND_LONGEST(reg->options)) {\
|
|
goto match;\
|
|
}\
|
|
}\
|
|
else goto finish; /* error */ \
|
|
}
|
|
#else
|
|
#define MATCH_AND_RETURN_CHECK(upper_range) \
|
|
r = match_at(reg, str, end, (upper_range), s, prev, &msa); \
|
|
if (r != ONIG_MISMATCH) {\
|
|
if (r >= 0) {\
|
|
goto match;\
|
|
}\
|
|
else goto finish; /* error */ \
|
|
}
|
|
#endif /* USE_FIND_LONGEST_SEARCH_ALL_OF_RANGE */
|
|
#else
|
|
#ifdef USE_FIND_LONGEST_SEARCH_ALL_OF_RANGE
|
|
#define MATCH_AND_RETURN_CHECK(none) \
|
|
r = match_at(reg, str, end, s, prev, &msa);\
|
|
if (r != ONIG_MISMATCH) {\
|
|
if (r >= 0) {\
|
|
if (! IS_FIND_LONGEST(reg->options)) {\
|
|
goto match;\
|
|
}\
|
|
}\
|
|
else goto finish; /* error */ \
|
|
}
|
|
#else
|
|
#define MATCH_AND_RETURN_CHECK(none) \
|
|
r = match_at(reg, str, end, s, prev, &msa);\
|
|
if (r != ONIG_MISMATCH) {\
|
|
if (r >= 0) {\
|
|
goto match;\
|
|
}\
|
|
else goto finish; /* error */ \
|
|
}
|
|
#endif /* USE_FIND_LONGEST_SEARCH_ALL_OF_RANGE */
|
|
#endif /* USE_MATCH_RANGE_MUST_BE_INSIDE_OF_SPECIFIED_RANGE */
|
|
|
|
|
|
/* anchor optimize: resume search range */
|
|
if (reg->anchor != 0 && str < end) {
|
|
UChar *min_semi_end, *max_semi_end;
|
|
|
|
if (reg->anchor & ANCHOR_BEGIN_POSITION) {
|
|
/* search start-position only */
|
|
begin_position:
|
|
if (range > start)
|
|
range = start + 1;
|
|
else
|
|
range = start;
|
|
}
|
|
else if (reg->anchor & ANCHOR_BEGIN_BUF) {
|
|
/* search str-position only */
|
|
if (range > start) {
|
|
if (start != str) goto mismatch_no_msa;
|
|
range = str + 1;
|
|
}
|
|
else {
|
|
if (range <= str) {
|
|
start = str;
|
|
range = str;
|
|
}
|
|
else
|
|
goto mismatch_no_msa;
|
|
}
|
|
}
|
|
else if (reg->anchor & ANCHOR_END_BUF) {
|
|
min_semi_end = max_semi_end = (UChar* )end;
|
|
|
|
end_buf:
|
|
if ((OnigDistance )(max_semi_end - str) < reg->anchor_dmin)
|
|
goto mismatch_no_msa;
|
|
|
|
if (range > start) {
|
|
if ((OnigDistance )(min_semi_end - start) > reg->anchor_dmax) {
|
|
start = min_semi_end - reg->anchor_dmax;
|
|
if (start < end)
|
|
start = onigenc_get_right_adjust_char_head(reg->enc, str, start, end);
|
|
else { /* match with empty at end */
|
|
start = onigenc_get_prev_char_head(reg->enc, str, end, end);
|
|
}
|
|
}
|
|
if ((OnigDistance )(max_semi_end - (range - 1)) < reg->anchor_dmin) {
|
|
range = max_semi_end - reg->anchor_dmin + 1;
|
|
}
|
|
|
|
if (start >= range) goto mismatch_no_msa;
|
|
}
|
|
else {
|
|
if ((OnigDistance )(min_semi_end - range) > reg->anchor_dmax) {
|
|
range = min_semi_end - reg->anchor_dmax;
|
|
}
|
|
if ((OnigDistance )(max_semi_end - start) < reg->anchor_dmin) {
|
|
start = max_semi_end - reg->anchor_dmin;
|
|
start = ONIGENC_LEFT_ADJUST_CHAR_HEAD(reg->enc, str, start, end);
|
|
}
|
|
if (range > start) goto mismatch_no_msa;
|
|
}
|
|
}
|
|
else if (reg->anchor & ANCHOR_SEMI_END_BUF) {
|
|
UChar* pre_end = ONIGENC_STEP_BACK(reg->enc, str, end, end, 1);
|
|
|
|
max_semi_end = (UChar* )end;
|
|
if (ONIGENC_IS_MBC_NEWLINE(reg->enc, pre_end, end)) {
|
|
min_semi_end = pre_end;
|
|
|
|
#ifdef USE_CRNL_AS_LINE_TERMINATOR
|
|
pre_end = ONIGENC_STEP_BACK(reg->enc, str, pre_end, end, 1);
|
|
if (IS_NOT_NULL(pre_end) &&
|
|
IS_NEWLINE_CRLF(reg->options) &&
|
|
ONIGENC_IS_MBC_CRNL(reg->enc, pre_end, end)) {
|
|
min_semi_end = pre_end;
|
|
}
|
|
#endif
|
|
if (min_semi_end > str && start <= min_semi_end) {
|
|
goto end_buf;
|
|
}
|
|
}
|
|
else {
|
|
min_semi_end = (UChar* )end;
|
|
goto end_buf;
|
|
}
|
|
}
|
|
else if ((reg->anchor & ANCHOR_ANYCHAR_STAR_ML)) {
|
|
goto begin_position;
|
|
}
|
|
}
|
|
else if (str == end) { /* empty string */
|
|
static const UChar address_for_empty_string[] = "";
|
|
|
|
#ifdef ONIG_DEBUG_SEARCH
|
|
fprintf(stderr, "onig_search: empty string.\n");
|
|
#endif
|
|
|
|
if (reg->threshold_len == 0) {
|
|
start = end = str = address_for_empty_string;
|
|
s = (UChar* )start;
|
|
prev = (UChar* )NULL;
|
|
|
|
MATCH_ARG_INIT(msa, option, region, start, start);
|
|
#ifdef USE_COMBINATION_EXPLOSION_CHECK
|
|
msa.state_check_buff = (void* )0;
|
|
msa.state_check_buff_size = 0; /* NO NEED, for valgrind */
|
|
#endif
|
|
MATCH_AND_RETURN_CHECK(end);
|
|
goto mismatch;
|
|
}
|
|
goto mismatch_no_msa;
|
|
}
|
|
|
|
#ifdef ONIG_DEBUG_SEARCH
|
|
fprintf(stderr, "onig_search(apply anchor): end: %d, start: %d, range: %d\n",
|
|
(int )(end - str), (int )(start - str), (int )(range - str));
|
|
#endif
|
|
|
|
MATCH_ARG_INIT(msa, option, region, start, global_pos);
|
|
#ifdef USE_COMBINATION_EXPLOSION_CHECK
|
|
{
|
|
int offset = (MIN(start, range) - str);
|
|
STATE_CHECK_BUFF_INIT(msa, end - str, offset, reg->num_comb_exp_check);
|
|
}
|
|
#endif
|
|
|
|
s = (UChar* )start;
|
|
if (range > start) { /* forward search */
|
|
if (s > str)
|
|
prev = onigenc_get_prev_char_head(reg->enc, str, s, end);
|
|
else
|
|
prev = (UChar* )NULL;
|
|
|
|
if (reg->optimize != ONIG_OPTIMIZE_NONE) {
|
|
UChar *sch_range, *low, *high, *low_prev;
|
|
|
|
sch_range = (UChar* )range;
|
|
if (reg->dmax != 0) {
|
|
if (reg->dmax == ONIG_INFINITE_DISTANCE)
|
|
sch_range = (UChar* )end;
|
|
else {
|
|
sch_range += reg->dmax;
|
|
if (sch_range > end) sch_range = (UChar* )end;
|
|
}
|
|
}
|
|
|
|
if ((end - start) < reg->threshold_len)
|
|
goto mismatch;
|
|
|
|
if (reg->dmax != ONIG_INFINITE_DISTANCE) {
|
|
do {
|
|
if (! forward_search_range(reg, str, end, s, sch_range,
|
|
&low, &high, &low_prev)) goto mismatch;
|
|
if (s < low) {
|
|
s = low;
|
|
prev = low_prev;
|
|
}
|
|
while (s <= high) {
|
|
MATCH_AND_RETURN_CHECK(orig_range);
|
|
prev = s;
|
|
s += enclen(reg->enc, s, end);
|
|
}
|
|
} while (s < range);
|
|
goto mismatch;
|
|
}
|
|
else { /* check only. */
|
|
if (! forward_search_range(reg, str, end, s, sch_range,
|
|
&low, &high, (UChar** )NULL)) goto mismatch;
|
|
|
|
if ((reg->anchor & ANCHOR_ANYCHAR_STAR) != 0) {
|
|
do {
|
|
if ((reg->anchor & ANCHOR_BEGIN_POSITION) == 0)
|
|
msa.gpos = s; /* move \G position */
|
|
MATCH_AND_RETURN_CHECK(orig_range);
|
|
prev = s;
|
|
s += enclen(reg->enc, s, end);
|
|
|
|
if ((reg->anchor & ANCHOR_LOOK_BEHIND) == 0) {
|
|
while (!ONIGENC_IS_MBC_NEWLINE_EX(reg->enc, prev, str, end, reg->options, 0)
|
|
&& s < range) {
|
|
prev = s;
|
|
s += enclen(reg->enc, s, end);
|
|
}
|
|
}
|
|
} while (s < range);
|
|
goto mismatch;
|
|
}
|
|
}
|
|
}
|
|
|
|
do {
|
|
MATCH_AND_RETURN_CHECK(orig_range);
|
|
prev = s;
|
|
s += enclen(reg->enc, s, end);
|
|
} while (s < range);
|
|
|
|
if (s == range) { /* because empty match with /$/. */
|
|
MATCH_AND_RETURN_CHECK(orig_range);
|
|
}
|
|
}
|
|
else { /* backward search */
|
|
#ifdef USE_MATCH_RANGE_MUST_BE_INSIDE_OF_SPECIFIED_RANGE
|
|
if (orig_start < end)
|
|
orig_start += enclen(reg->enc, orig_start, end); /* is upper range */
|
|
#endif
|
|
|
|
if (reg->optimize != ONIG_OPTIMIZE_NONE) {
|
|
UChar *low, *high, *adjrange, *sch_start;
|
|
|
|
if (range < end)
|
|
adjrange = ONIGENC_LEFT_ADJUST_CHAR_HEAD(reg->enc, str, range, end);
|
|
else
|
|
adjrange = (UChar* )end;
|
|
|
|
if (reg->dmax != ONIG_INFINITE_DISTANCE &&
|
|
(end - range) >= reg->threshold_len) {
|
|
do {
|
|
sch_start = s + reg->dmax;
|
|
if (sch_start > end) sch_start = (UChar* )end;
|
|
if (backward_search_range(reg, str, end, sch_start, range, adjrange,
|
|
&low, &high) <= 0)
|
|
goto mismatch;
|
|
|
|
if (s > high)
|
|
s = high;
|
|
|
|
while (s >= low) {
|
|
prev = onigenc_get_prev_char_head(reg->enc, str, s, end);
|
|
MATCH_AND_RETURN_CHECK(orig_start);
|
|
s = prev;
|
|
}
|
|
} while (s >= range);
|
|
goto mismatch;
|
|
}
|
|
else { /* check only. */
|
|
if ((end - range) < reg->threshold_len) goto mismatch;
|
|
|
|
sch_start = s;
|
|
if (reg->dmax != 0) {
|
|
if (reg->dmax == ONIG_INFINITE_DISTANCE)
|
|
sch_start = (UChar* )end;
|
|
else {
|
|
sch_start += reg->dmax;
|
|
if (sch_start > end) sch_start = (UChar* )end;
|
|
else
|
|
sch_start = ONIGENC_LEFT_ADJUST_CHAR_HEAD(reg->enc,
|
|
start, sch_start, end);
|
|
}
|
|
}
|
|
if (backward_search_range(reg, str, end, sch_start, range, adjrange,
|
|
&low, &high) <= 0) goto mismatch;
|
|
}
|
|
}
|
|
|
|
do {
|
|
prev = onigenc_get_prev_char_head(reg->enc, str, s, end);
|
|
MATCH_AND_RETURN_CHECK(orig_start);
|
|
s = prev;
|
|
} while (s >= range);
|
|
}
|
|
|
|
mismatch:
|
|
#ifdef USE_FIND_LONGEST_SEARCH_ALL_OF_RANGE
|
|
if (IS_FIND_LONGEST(reg->options)) {
|
|
if (msa.best_len >= 0) {
|
|
s = msa.best_s;
|
|
goto match;
|
|
}
|
|
}
|
|
#endif
|
|
r = ONIG_MISMATCH;
|
|
|
|
finish:
|
|
MATCH_ARG_FREE(msa);
|
|
ONIG_STATE_DEC_THREAD(reg);
|
|
|
|
/* If result is mismatch and no FIND_NOT_EMPTY option,
|
|
then the region is not setted in match_at(). */
|
|
if (IS_FIND_NOT_EMPTY(reg->options) && region
|
|
#ifdef USE_POSIX_API_REGION_OPTION
|
|
&& !IS_POSIX_REGION(option)
|
|
#endif
|
|
) {
|
|
onig_region_clear(region);
|
|
}
|
|
|
|
#ifdef ONIG_DEBUG
|
|
if (r != ONIG_MISMATCH)
|
|
fprintf(stderr, "onig_search: error %d\n", r);
|
|
#endif
|
|
return r;
|
|
|
|
mismatch_no_msa:
|
|
r = ONIG_MISMATCH;
|
|
finish_no_msa:
|
|
ONIG_STATE_DEC_THREAD(reg);
|
|
#ifdef ONIG_DEBUG
|
|
if (r != ONIG_MISMATCH)
|
|
fprintf(stderr, "onig_search: error %d\n", r);
|
|
#endif
|
|
return r;
|
|
|
|
match:
|
|
ONIG_STATE_DEC_THREAD(reg);
|
|
MATCH_ARG_FREE(msa);
|
|
return s - str;
|
|
}
|
|
|
|
extern OnigEncoding
|
|
onig_get_encoding(regex_t* reg)
|
|
{
|
|
return reg->enc;
|
|
}
|
|
|
|
extern OnigOptionType
|
|
onig_get_options(regex_t* reg)
|
|
{
|
|
return reg->options;
|
|
}
|
|
|
|
extern OnigCaseFoldType
|
|
onig_get_case_fold_flag(regex_t* reg)
|
|
{
|
|
return reg->case_fold_flag;
|
|
}
|
|
|
|
extern const OnigSyntaxType*
|
|
onig_get_syntax(regex_t* reg)
|
|
{
|
|
return reg->syntax;
|
|
}
|
|
|
|
extern int
|
|
onig_number_of_captures(regex_t* reg)
|
|
{
|
|
return reg->num_mem;
|
|
}
|
|
|
|
extern int
|
|
onig_number_of_capture_histories(regex_t* reg)
|
|
{
|
|
#ifdef USE_CAPTURE_HISTORY
|
|
int i, n;
|
|
|
|
n = 0;
|
|
for (i = 0; i <= ONIG_MAX_CAPTURE_HISTORY_GROUP; i++) {
|
|
if (BIT_STATUS_AT(reg->capture_history, i) != 0)
|
|
n++;
|
|
}
|
|
return n;
|
|
#else
|
|
return 0;
|
|
#endif
|
|
}
|
|
|
|
extern void
|
|
onig_copy_encoding(OnigEncoding to, OnigEncoding from)
|
|
{
|
|
*to = *from;
|
|
}
|
|
|