mirror of
https://github.com/fish-shell/fish-shell
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11501 lines
345 KiB
C
11501 lines
345 KiB
C
/*************************************************
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* Perl-Compatible Regular Expressions *
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*************************************************/
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/* PCRE is a library of functions to support regular expressions whose syntax
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and semantics are as close as possible to those of the Perl 5 language.
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Written by Philip Hazel
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Original API code Copyright (c) 1997-2012 University of Cambridge
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New API code Copyright (c) 2016 University of Cambridge
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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 are met:
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* Redistributions of source code must retain the above copyright notice,
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this list of conditions and the following disclaimer.
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* 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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* Neither the name of the University of Cambridge nor the names of its
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contributors may be used to endorse or promote products derived from
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this software without specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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AND 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 COPYRIGHT OWNER OR CONTRIBUTORS BE
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LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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POSSIBILITY OF SUCH DAMAGE.
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-----------------------------------------------------------------------------
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include "pcre2_internal.h"
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#ifdef SUPPORT_JIT
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/* All-in-one: Since we use the JIT compiler only from here,
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we just include it. This way we don't need to touch the build
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system files. */
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#define SLJIT_CONFIG_AUTO 1
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#define SLJIT_CONFIG_STATIC 1
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#define SLJIT_VERBOSE 0
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#ifdef PCRE2_DEBUG
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#define SLJIT_DEBUG 1
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#else
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#define SLJIT_DEBUG 0
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#endif
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#define SLJIT_MALLOC(size, allocator_data) pcre2_jit_malloc(size, allocator_data)
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#define SLJIT_FREE(ptr, allocator_data) pcre2_jit_free(ptr, allocator_data)
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static void * pcre2_jit_malloc(size_t size, void *allocator_data)
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{
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pcre2_memctl *allocator = ((pcre2_memctl*)allocator_data);
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return allocator->malloc(size, allocator->memory_data);
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}
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static void pcre2_jit_free(void *ptr, void *allocator_data)
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{
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pcre2_memctl *allocator = ((pcre2_memctl*)allocator_data);
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allocator->free(ptr, allocator->memory_data);
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}
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#include "sljit/sljitLir.c"
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#if defined SLJIT_CONFIG_UNSUPPORTED && SLJIT_CONFIG_UNSUPPORTED
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#error Unsupported architecture
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#endif
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/* Defines for debugging purposes. */
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/* 1 - Use unoptimized capturing brackets.
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2 - Enable capture_last_ptr (includes option 1). */
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/* #define DEBUG_FORCE_UNOPTIMIZED_CBRAS 2 */
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/* 1 - Always have a control head. */
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/* #define DEBUG_FORCE_CONTROL_HEAD 1 */
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/* Allocate memory for the regex stack on the real machine stack.
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Fast, but limited size. */
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#define MACHINE_STACK_SIZE 32768
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/* Growth rate for stack allocated by the OS. Should be the multiply
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of page size. */
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#define STACK_GROWTH_RATE 8192
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/* Enable to check that the allocation could destroy temporaries. */
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#if defined SLJIT_DEBUG && SLJIT_DEBUG
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#define DESTROY_REGISTERS 1
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#endif
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/*
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Short summary about the backtracking mechanism empolyed by the jit code generator:
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The code generator follows the recursive nature of the PERL compatible regular
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expressions. The basic blocks of regular expressions are condition checkers
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whose execute different commands depending on the result of the condition check.
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The relationship between the operators can be horizontal (concatenation) and
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vertical (sub-expression) (See struct backtrack_common for more details).
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'ab' - 'a' and 'b' regexps are concatenated
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'a+' - 'a' is the sub-expression of the '+' operator
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The condition checkers are boolean (true/false) checkers. Machine code is generated
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for the checker itself and for the actions depending on the result of the checker.
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The 'true' case is called as the matching path (expected path), and the other is called as
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the 'backtrack' path. Branch instructions are expesive for all CPUs, so we avoid taken
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branches on the matching path.
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Greedy star operator (*) :
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Matching path: match happens.
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Backtrack path: match failed.
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Non-greedy star operator (*?) :
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Matching path: no need to perform a match.
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Backtrack path: match is required.
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The following example shows how the code generated for a capturing bracket
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with two alternatives. Let A, B, C, D are arbirary regular expressions, and
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we have the following regular expression:
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A(B|C)D
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The generated code will be the following:
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A matching path
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'(' matching path (pushing arguments to the stack)
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B matching path
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')' matching path (pushing arguments to the stack)
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D matching path
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return with successful match
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D backtrack path
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')' backtrack path (If we arrived from "C" jump to the backtrack of "C")
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B backtrack path
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C expected path
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jump to D matching path
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C backtrack path
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A backtrack path
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Notice, that the order of backtrack code paths are the opposite of the fast
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code paths. In this way the topmost value on the stack is always belong
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to the current backtrack code path. The backtrack path must check
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whether there is a next alternative. If so, it needs to jump back to
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the matching path eventually. Otherwise it needs to clear out its own stack
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frame and continue the execution on the backtrack code paths.
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*/
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/*
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Saved stack frames:
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Atomic blocks and asserts require reloading the values of private data
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when the backtrack mechanism performed. Because of OP_RECURSE, the data
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are not necessarly known in compile time, thus we need a dynamic restore
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mechanism.
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The stack frames are stored in a chain list, and have the following format:
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([ capturing bracket offset ][ start value ][ end value ])+ ... [ 0 ] [ previous head ]
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Thus we can restore the private data to a particular point in the stack.
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*/
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typedef struct jit_arguments {
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/* Pointers first. */
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struct sljit_stack *stack;
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PCRE2_SPTR str;
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PCRE2_SPTR begin;
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PCRE2_SPTR end;
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pcre2_match_data *match_data;
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PCRE2_SPTR startchar_ptr;
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PCRE2_UCHAR *mark_ptr;
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int (*callout)(pcre2_callout_block *, void *);
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void *callout_data;
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/* Everything else after. */
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sljit_uw offset_limit;
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sljit_u32 limit_match;
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sljit_u32 oveccount;
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sljit_u32 options;
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} jit_arguments;
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#define JIT_NUMBER_OF_COMPILE_MODES 3
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typedef struct executable_functions {
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void *executable_funcs[JIT_NUMBER_OF_COMPILE_MODES];
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void *read_only_data_heads[JIT_NUMBER_OF_COMPILE_MODES];
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sljit_uw executable_sizes[JIT_NUMBER_OF_COMPILE_MODES];
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sljit_u32 top_bracket;
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sljit_u32 limit_match;
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} executable_functions;
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typedef struct jump_list {
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struct sljit_jump *jump;
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struct jump_list *next;
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} jump_list;
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typedef struct stub_list {
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struct sljit_jump *start;
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struct sljit_label *quit;
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struct stub_list *next;
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} stub_list;
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typedef struct label_addr_list {
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struct sljit_label *label;
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sljit_uw *update_addr;
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struct label_addr_list *next;
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} label_addr_list;
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enum frame_types {
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no_frame = -1,
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no_stack = -2
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};
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enum control_types {
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type_mark = 0,
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type_then_trap = 1
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};
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typedef int (SLJIT_CALL *jit_function)(jit_arguments *args);
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/* The following structure is the key data type for the recursive
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code generator. It is allocated by compile_matchingpath, and contains
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the arguments for compile_backtrackingpath. Must be the first member
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of its descendants. */
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typedef struct backtrack_common {
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/* Concatenation stack. */
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struct backtrack_common *prev;
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jump_list *nextbacktracks;
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/* Internal stack (for component operators). */
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struct backtrack_common *top;
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jump_list *topbacktracks;
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/* Opcode pointer. */
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PCRE2_SPTR cc;
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} backtrack_common;
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typedef struct assert_backtrack {
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backtrack_common common;
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jump_list *condfailed;
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/* Less than 0 if a frame is not needed. */
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int framesize;
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/* Points to our private memory word on the stack. */
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int private_data_ptr;
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/* For iterators. */
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struct sljit_label *matchingpath;
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} assert_backtrack;
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typedef struct bracket_backtrack {
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backtrack_common common;
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/* Where to coninue if an alternative is successfully matched. */
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struct sljit_label *alternative_matchingpath;
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/* For rmin and rmax iterators. */
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struct sljit_label *recursive_matchingpath;
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/* For greedy ? operator. */
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struct sljit_label *zero_matchingpath;
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/* Contains the branches of a failed condition. */
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union {
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/* Both for OP_COND, OP_SCOND. */
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jump_list *condfailed;
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assert_backtrack *assert;
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/* For OP_ONCE. Less than 0 if not needed. */
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int framesize;
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} u;
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/* Points to our private memory word on the stack. */
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int private_data_ptr;
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} bracket_backtrack;
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typedef struct bracketpos_backtrack {
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backtrack_common common;
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/* Points to our private memory word on the stack. */
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int private_data_ptr;
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/* Reverting stack is needed. */
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int framesize;
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/* Allocated stack size. */
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int stacksize;
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} bracketpos_backtrack;
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typedef struct braminzero_backtrack {
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backtrack_common common;
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struct sljit_label *matchingpath;
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} braminzero_backtrack;
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typedef struct char_iterator_backtrack {
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backtrack_common common;
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/* Next iteration. */
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struct sljit_label *matchingpath;
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union {
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jump_list *backtracks;
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struct {
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unsigned int othercasebit;
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PCRE2_UCHAR chr;
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BOOL enabled;
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} charpos;
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} u;
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} char_iterator_backtrack;
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typedef struct ref_iterator_backtrack {
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backtrack_common common;
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/* Next iteration. */
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struct sljit_label *matchingpath;
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} ref_iterator_backtrack;
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typedef struct recurse_entry {
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struct recurse_entry *next;
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/* Contains the function entry. */
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struct sljit_label *entry;
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/* Collects the calls until the function is not created. */
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jump_list *calls;
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/* Points to the starting opcode. */
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sljit_sw start;
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} recurse_entry;
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typedef struct recurse_backtrack {
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backtrack_common common;
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BOOL inlined_pattern;
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} recurse_backtrack;
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#define OP_THEN_TRAP OP_TABLE_LENGTH
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typedef struct then_trap_backtrack {
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backtrack_common common;
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/* If then_trap is not NULL, this structure contains the real
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then_trap for the backtracking path. */
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struct then_trap_backtrack *then_trap;
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/* Points to the starting opcode. */
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sljit_sw start;
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/* Exit point for the then opcodes of this alternative. */
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jump_list *quit;
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/* Frame size of the current alternative. */
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int framesize;
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} then_trap_backtrack;
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#define MAX_RANGE_SIZE 4
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typedef struct compiler_common {
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/* The sljit ceneric compiler. */
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struct sljit_compiler *compiler;
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/* First byte code. */
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PCRE2_SPTR start;
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/* Maps private data offset to each opcode. */
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sljit_s32 *private_data_ptrs;
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/* Chain list of read-only data ptrs. */
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void *read_only_data_head;
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/* Tells whether the capturing bracket is optimized. */
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sljit_u8 *optimized_cbracket;
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/* Tells whether the starting offset is a target of then. */
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sljit_u8 *then_offsets;
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/* Current position where a THEN must jump. */
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then_trap_backtrack *then_trap;
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/* Starting offset of private data for capturing brackets. */
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sljit_s32 cbra_ptr;
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/* Output vector starting point. Must be divisible by 2. */
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sljit_s32 ovector_start;
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/* Points to the starting character of the current match. */
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sljit_s32 start_ptr;
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/* Last known position of the requested byte. */
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sljit_s32 req_char_ptr;
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/* Head of the last recursion. */
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sljit_s32 recursive_head_ptr;
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/* First inspected character for partial matching.
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(Needed for avoiding zero length partial matches.) */
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sljit_s32 start_used_ptr;
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/* Starting pointer for partial soft matches. */
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sljit_s32 hit_start;
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/* Pointer of the match end position. */
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sljit_s32 match_end_ptr;
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/* Points to the marked string. */
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sljit_s32 mark_ptr;
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/* Recursive control verb management chain. */
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sljit_s32 control_head_ptr;
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/* Points to the last matched capture block index. */
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sljit_s32 capture_last_ptr;
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/* Fast forward skipping byte code pointer. */
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PCRE2_SPTR fast_forward_bc_ptr;
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/* Locals used by fast fail optimization. */
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sljit_s32 fast_fail_start_ptr;
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sljit_s32 fast_fail_end_ptr;
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/* Flipped and lower case tables. */
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const sljit_u8 *fcc;
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sljit_sw lcc;
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/* Mode can be PCRE2_JIT_COMPLETE and others. */
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int mode;
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/* TRUE, when minlength is greater than 0. */
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BOOL might_be_empty;
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/* \K is found in the pattern. */
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BOOL has_set_som;
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/* (*SKIP:arg) is found in the pattern. */
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BOOL has_skip_arg;
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/* (*THEN) is found in the pattern. */
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BOOL has_then;
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/* (*SKIP) or (*SKIP:arg) is found in lookbehind assertion. */
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BOOL has_skip_in_assert_back;
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/* Currently in recurse or negative assert. */
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BOOL local_exit;
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/* Currently in a positive assert. */
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BOOL positive_assert;
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/* Newline control. */
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int nltype;
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sljit_u32 nlmax;
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sljit_u32 nlmin;
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int newline;
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int bsr_nltype;
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sljit_u32 bsr_nlmax;
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sljit_u32 bsr_nlmin;
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/* Dollar endonly. */
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int endonly;
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/* Tables. */
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sljit_sw ctypes;
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/* Named capturing brackets. */
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PCRE2_SPTR name_table;
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sljit_sw name_count;
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sljit_sw name_entry_size;
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/* Labels and jump lists. */
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struct sljit_label *partialmatchlabel;
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struct sljit_label *quit_label;
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struct sljit_label *forced_quit_label;
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struct sljit_label *accept_label;
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struct sljit_label *ff_newline_shortcut;
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stub_list *stubs;
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label_addr_list *label_addrs;
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recurse_entry *entries;
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recurse_entry *currententry;
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jump_list *partialmatch;
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jump_list *quit;
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jump_list *positive_assert_quit;
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jump_list *forced_quit;
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jump_list *accept;
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jump_list *calllimit;
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jump_list *stackalloc;
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jump_list *revertframes;
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jump_list *wordboundary;
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jump_list *anynewline;
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jump_list *hspace;
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jump_list *vspace;
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jump_list *casefulcmp;
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jump_list *caselesscmp;
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jump_list *reset_match;
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BOOL unset_backref;
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BOOL alt_circumflex;
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#ifdef SUPPORT_UNICODE
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BOOL utf;
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BOOL use_ucp;
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jump_list *getucd;
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#if PCRE2_CODE_UNIT_WIDTH == 8
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jump_list *utfreadchar;
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jump_list *utfreadchar16;
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jump_list *utfreadtype8;
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#endif
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#endif /* SUPPORT_UNICODE */
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} compiler_common;
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/* For byte_sequence_compare. */
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typedef struct compare_context {
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int length;
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int sourcereg;
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#if defined SLJIT_UNALIGNED && SLJIT_UNALIGNED
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int ucharptr;
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union {
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sljit_s32 asint;
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sljit_u16 asushort;
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#if PCRE2_CODE_UNIT_WIDTH == 8
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sljit_u8 asbyte;
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sljit_u8 asuchars[4];
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#elif PCRE2_CODE_UNIT_WIDTH == 16
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sljit_u16 asuchars[2];
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#elif PCRE2_CODE_UNIT_WIDTH == 32
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sljit_u32 asuchars[1];
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#endif
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} c;
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union {
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sljit_s32 asint;
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sljit_u16 asushort;
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#if PCRE2_CODE_UNIT_WIDTH == 8
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sljit_u8 asbyte;
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sljit_u8 asuchars[4];
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#elif PCRE2_CODE_UNIT_WIDTH == 16
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sljit_u16 asuchars[2];
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#elif PCRE2_CODE_UNIT_WIDTH == 32
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sljit_u32 asuchars[1];
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#endif
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} oc;
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#endif
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} compare_context;
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/* Undefine sljit macros. */
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#undef CMP
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/* Used for accessing the elements of the stack. */
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#define STACK(i) ((-(i) - 1) * (int)sizeof(sljit_sw))
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#define TMP1 SLJIT_R0
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#define TMP2 SLJIT_R2
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#define TMP3 SLJIT_R3
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#define STR_PTR SLJIT_S0
|
|
#define STR_END SLJIT_S1
|
|
#define STACK_TOP SLJIT_R1
|
|
#define STACK_LIMIT SLJIT_S2
|
|
#define COUNT_MATCH SLJIT_S3
|
|
#define ARGUMENTS SLJIT_S4
|
|
#define RETURN_ADDR SLJIT_R4
|
|
|
|
/* Local space layout. */
|
|
/* These two locals can be used by the current opcode. */
|
|
#define LOCALS0 (0 * sizeof(sljit_sw))
|
|
#define LOCALS1 (1 * sizeof(sljit_sw))
|
|
/* Two local variables for possessive quantifiers (char1 cannot use them). */
|
|
#define POSSESSIVE0 (2 * sizeof(sljit_sw))
|
|
#define POSSESSIVE1 (3 * sizeof(sljit_sw))
|
|
/* Max limit of recursions. */
|
|
#define LIMIT_MATCH (4 * sizeof(sljit_sw))
|
|
/* The output vector is stored on the stack, and contains pointers
|
|
to characters. The vector data is divided into two groups: the first
|
|
group contains the start / end character pointers, and the second is
|
|
the start pointers when the end of the capturing group has not yet reached. */
|
|
#define OVECTOR_START (common->ovector_start)
|
|
#define OVECTOR(i) (OVECTOR_START + (i) * (sljit_sw)sizeof(sljit_sw))
|
|
#define OVECTOR_PRIV(i) (common->cbra_ptr + (i) * (sljit_sw)sizeof(sljit_sw))
|
|
#define PRIVATE_DATA(cc) (common->private_data_ptrs[(cc) - common->start])
|
|
|
|
#if PCRE2_CODE_UNIT_WIDTH == 8
|
|
#define MOV_UCHAR SLJIT_MOV_U8
|
|
#define MOVU_UCHAR SLJIT_MOVU_U8
|
|
#define IN_UCHARS(x) (x)
|
|
#elif PCRE2_CODE_UNIT_WIDTH == 16
|
|
#define MOV_UCHAR SLJIT_MOV_U16
|
|
#define MOVU_UCHAR SLJIT_MOVU_U16
|
|
#define UCHAR_SHIFT (1)
|
|
#define IN_UCHARS(x) ((x) * 2)
|
|
#elif PCRE2_CODE_UNIT_WIDTH == 32
|
|
#define MOV_UCHAR SLJIT_MOV_U32
|
|
#define MOVU_UCHAR SLJIT_MOVU_U32
|
|
#define UCHAR_SHIFT (2)
|
|
#define IN_UCHARS(x) ((x) * 4)
|
|
#else
|
|
#error Unsupported compiling mode
|
|
#endif
|
|
|
|
/* Shortcuts. */
|
|
#define DEFINE_COMPILER \
|
|
struct sljit_compiler *compiler = common->compiler
|
|
#define OP1(op, dst, dstw, src, srcw) \
|
|
sljit_emit_op1(compiler, (op), (dst), (dstw), (src), (srcw))
|
|
#define OP2(op, dst, dstw, src1, src1w, src2, src2w) \
|
|
sljit_emit_op2(compiler, (op), (dst), (dstw), (src1), (src1w), (src2), (src2w))
|
|
#define LABEL() \
|
|
sljit_emit_label(compiler)
|
|
#define JUMP(type) \
|
|
sljit_emit_jump(compiler, (type))
|
|
#define JUMPTO(type, label) \
|
|
sljit_set_label(sljit_emit_jump(compiler, (type)), (label))
|
|
#define JUMPHERE(jump) \
|
|
sljit_set_label((jump), sljit_emit_label(compiler))
|
|
#define SET_LABEL(jump, label) \
|
|
sljit_set_label((jump), (label))
|
|
#define CMP(type, src1, src1w, src2, src2w) \
|
|
sljit_emit_cmp(compiler, (type), (src1), (src1w), (src2), (src2w))
|
|
#define CMPTO(type, src1, src1w, src2, src2w, label) \
|
|
sljit_set_label(sljit_emit_cmp(compiler, (type), (src1), (src1w), (src2), (src2w)), (label))
|
|
#define OP_FLAGS(op, dst, dstw, src, srcw, type) \
|
|
sljit_emit_op_flags(compiler, (op), (dst), (dstw), (src), (srcw), (type))
|
|
#define GET_LOCAL_BASE(dst, dstw, offset) \
|
|
sljit_get_local_base(compiler, (dst), (dstw), (offset))
|
|
|
|
#define READ_CHAR_MAX 0x7fffffff
|
|
|
|
static PCRE2_SPTR bracketend(PCRE2_SPTR cc)
|
|
{
|
|
SLJIT_ASSERT((*cc >= OP_ASSERT && *cc <= OP_ASSERTBACK_NOT) || (*cc >= OP_ONCE && *cc <= OP_SCOND));
|
|
do cc += GET(cc, 1); while (*cc == OP_ALT);
|
|
SLJIT_ASSERT(*cc >= OP_KET && *cc <= OP_KETRPOS);
|
|
cc += 1 + LINK_SIZE;
|
|
return cc;
|
|
}
|
|
|
|
static int no_alternatives(PCRE2_SPTR cc)
|
|
{
|
|
int count = 0;
|
|
SLJIT_ASSERT((*cc >= OP_ASSERT && *cc <= OP_ASSERTBACK_NOT) || (*cc >= OP_ONCE && *cc <= OP_SCOND));
|
|
do
|
|
{
|
|
cc += GET(cc, 1);
|
|
count++;
|
|
}
|
|
while (*cc == OP_ALT);
|
|
SLJIT_ASSERT(*cc >= OP_KET && *cc <= OP_KETRPOS);
|
|
return count;
|
|
}
|
|
|
|
/* Functions whose might need modification for all new supported opcodes:
|
|
next_opcode
|
|
check_opcode_types
|
|
set_private_data_ptrs
|
|
get_framesize
|
|
init_frame
|
|
get_private_data_copy_length
|
|
copy_private_data
|
|
compile_matchingpath
|
|
compile_backtrackingpath
|
|
*/
|
|
|
|
static PCRE2_SPTR next_opcode(compiler_common *common, PCRE2_SPTR cc)
|
|
{
|
|
SLJIT_UNUSED_ARG(common);
|
|
switch(*cc)
|
|
{
|
|
case OP_SOD:
|
|
case OP_SOM:
|
|
case OP_SET_SOM:
|
|
case OP_NOT_WORD_BOUNDARY:
|
|
case OP_WORD_BOUNDARY:
|
|
case OP_NOT_DIGIT:
|
|
case OP_DIGIT:
|
|
case OP_NOT_WHITESPACE:
|
|
case OP_WHITESPACE:
|
|
case OP_NOT_WORDCHAR:
|
|
case OP_WORDCHAR:
|
|
case OP_ANY:
|
|
case OP_ALLANY:
|
|
case OP_NOTPROP:
|
|
case OP_PROP:
|
|
case OP_ANYNL:
|
|
case OP_NOT_HSPACE:
|
|
case OP_HSPACE:
|
|
case OP_NOT_VSPACE:
|
|
case OP_VSPACE:
|
|
case OP_EXTUNI:
|
|
case OP_EODN:
|
|
case OP_EOD:
|
|
case OP_CIRC:
|
|
case OP_CIRCM:
|
|
case OP_DOLL:
|
|
case OP_DOLLM:
|
|
case OP_CRSTAR:
|
|
case OP_CRMINSTAR:
|
|
case OP_CRPLUS:
|
|
case OP_CRMINPLUS:
|
|
case OP_CRQUERY:
|
|
case OP_CRMINQUERY:
|
|
case OP_CRRANGE:
|
|
case OP_CRMINRANGE:
|
|
case OP_CRPOSSTAR:
|
|
case OP_CRPOSPLUS:
|
|
case OP_CRPOSQUERY:
|
|
case OP_CRPOSRANGE:
|
|
case OP_CLASS:
|
|
case OP_NCLASS:
|
|
case OP_REF:
|
|
case OP_REFI:
|
|
case OP_DNREF:
|
|
case OP_DNREFI:
|
|
case OP_RECURSE:
|
|
case OP_CALLOUT:
|
|
case OP_ALT:
|
|
case OP_KET:
|
|
case OP_KETRMAX:
|
|
case OP_KETRMIN:
|
|
case OP_KETRPOS:
|
|
case OP_REVERSE:
|
|
case OP_ASSERT:
|
|
case OP_ASSERT_NOT:
|
|
case OP_ASSERTBACK:
|
|
case OP_ASSERTBACK_NOT:
|
|
case OP_ONCE:
|
|
case OP_ONCE_NC:
|
|
case OP_BRA:
|
|
case OP_BRAPOS:
|
|
case OP_CBRA:
|
|
case OP_CBRAPOS:
|
|
case OP_COND:
|
|
case OP_SBRA:
|
|
case OP_SBRAPOS:
|
|
case OP_SCBRA:
|
|
case OP_SCBRAPOS:
|
|
case OP_SCOND:
|
|
case OP_CREF:
|
|
case OP_DNCREF:
|
|
case OP_RREF:
|
|
case OP_DNRREF:
|
|
case OP_FALSE:
|
|
case OP_TRUE:
|
|
case OP_BRAZERO:
|
|
case OP_BRAMINZERO:
|
|
case OP_BRAPOSZERO:
|
|
case OP_PRUNE:
|
|
case OP_SKIP:
|
|
case OP_THEN:
|
|
case OP_COMMIT:
|
|
case OP_FAIL:
|
|
case OP_ACCEPT:
|
|
case OP_ASSERT_ACCEPT:
|
|
case OP_CLOSE:
|
|
case OP_SKIPZERO:
|
|
return cc + PRIV(OP_lengths)[*cc];
|
|
|
|
case OP_CHAR:
|
|
case OP_CHARI:
|
|
case OP_NOT:
|
|
case OP_NOTI:
|
|
case OP_STAR:
|
|
case OP_MINSTAR:
|
|
case OP_PLUS:
|
|
case OP_MINPLUS:
|
|
case OP_QUERY:
|
|
case OP_MINQUERY:
|
|
case OP_UPTO:
|
|
case OP_MINUPTO:
|
|
case OP_EXACT:
|
|
case OP_POSSTAR:
|
|
case OP_POSPLUS:
|
|
case OP_POSQUERY:
|
|
case OP_POSUPTO:
|
|
case OP_STARI:
|
|
case OP_MINSTARI:
|
|
case OP_PLUSI:
|
|
case OP_MINPLUSI:
|
|
case OP_QUERYI:
|
|
case OP_MINQUERYI:
|
|
case OP_UPTOI:
|
|
case OP_MINUPTOI:
|
|
case OP_EXACTI:
|
|
case OP_POSSTARI:
|
|
case OP_POSPLUSI:
|
|
case OP_POSQUERYI:
|
|
case OP_POSUPTOI:
|
|
case OP_NOTSTAR:
|
|
case OP_NOTMINSTAR:
|
|
case OP_NOTPLUS:
|
|
case OP_NOTMINPLUS:
|
|
case OP_NOTQUERY:
|
|
case OP_NOTMINQUERY:
|
|
case OP_NOTUPTO:
|
|
case OP_NOTMINUPTO:
|
|
case OP_NOTEXACT:
|
|
case OP_NOTPOSSTAR:
|
|
case OP_NOTPOSPLUS:
|
|
case OP_NOTPOSQUERY:
|
|
case OP_NOTPOSUPTO:
|
|
case OP_NOTSTARI:
|
|
case OP_NOTMINSTARI:
|
|
case OP_NOTPLUSI:
|
|
case OP_NOTMINPLUSI:
|
|
case OP_NOTQUERYI:
|
|
case OP_NOTMINQUERYI:
|
|
case OP_NOTUPTOI:
|
|
case OP_NOTMINUPTOI:
|
|
case OP_NOTEXACTI:
|
|
case OP_NOTPOSSTARI:
|
|
case OP_NOTPOSPLUSI:
|
|
case OP_NOTPOSQUERYI:
|
|
case OP_NOTPOSUPTOI:
|
|
cc += PRIV(OP_lengths)[*cc];
|
|
#ifdef SUPPORT_UNICODE
|
|
if (common->utf && HAS_EXTRALEN(cc[-1])) cc += GET_EXTRALEN(cc[-1]);
|
|
#endif
|
|
return cc;
|
|
|
|
/* Special cases. */
|
|
case OP_TYPESTAR:
|
|
case OP_TYPEMINSTAR:
|
|
case OP_TYPEPLUS:
|
|
case OP_TYPEMINPLUS:
|
|
case OP_TYPEQUERY:
|
|
case OP_TYPEMINQUERY:
|
|
case OP_TYPEUPTO:
|
|
case OP_TYPEMINUPTO:
|
|
case OP_TYPEEXACT:
|
|
case OP_TYPEPOSSTAR:
|
|
case OP_TYPEPOSPLUS:
|
|
case OP_TYPEPOSQUERY:
|
|
case OP_TYPEPOSUPTO:
|
|
return cc + PRIV(OP_lengths)[*cc] - 1;
|
|
|
|
case OP_ANYBYTE:
|
|
#ifdef SUPPORT_UNICODE
|
|
if (common->utf) return NULL;
|
|
#endif
|
|
return cc + 1;
|
|
|
|
case OP_CALLOUT_STR:
|
|
return cc + GET(cc, 1 + 2*LINK_SIZE);
|
|
|
|
#if defined SUPPORT_UNICODE || PCRE2_CODE_UNIT_WIDTH != 8
|
|
case OP_XCLASS:
|
|
return cc + GET(cc, 1);
|
|
#endif
|
|
|
|
case OP_MARK:
|
|
case OP_PRUNE_ARG:
|
|
case OP_SKIP_ARG:
|
|
case OP_THEN_ARG:
|
|
return cc + 1 + 2 + cc[1];
|
|
|
|
default:
|
|
/* All opcodes are supported now! */
|
|
SLJIT_ASSERT_STOP();
|
|
return NULL;
|
|
}
|
|
}
|
|
|
|
static BOOL check_opcode_types(compiler_common *common, PCRE2_SPTR cc, PCRE2_SPTR ccend)
|
|
{
|
|
int count;
|
|
PCRE2_SPTR slot;
|
|
PCRE2_SPTR assert_back_end = cc - 1;
|
|
|
|
/* Calculate important variables (like stack size) and checks whether all opcodes are supported. */
|
|
while (cc < ccend)
|
|
{
|
|
switch(*cc)
|
|
{
|
|
case OP_SET_SOM:
|
|
common->has_set_som = TRUE;
|
|
common->might_be_empty = TRUE;
|
|
cc += 1;
|
|
break;
|
|
|
|
case OP_REF:
|
|
case OP_REFI:
|
|
common->optimized_cbracket[GET2(cc, 1)] = 0;
|
|
cc += 1 + IMM2_SIZE;
|
|
break;
|
|
|
|
case OP_CBRAPOS:
|
|
case OP_SCBRAPOS:
|
|
common->optimized_cbracket[GET2(cc, 1 + LINK_SIZE)] = 0;
|
|
cc += 1 + LINK_SIZE + IMM2_SIZE;
|
|
break;
|
|
|
|
case OP_COND:
|
|
case OP_SCOND:
|
|
/* Only AUTO_CALLOUT can insert this opcode. We do
|
|
not intend to support this case. */
|
|
if (cc[1 + LINK_SIZE] == OP_CALLOUT || cc[1 + LINK_SIZE] == OP_CALLOUT_STR)
|
|
return FALSE;
|
|
cc += 1 + LINK_SIZE;
|
|
break;
|
|
|
|
case OP_CREF:
|
|
common->optimized_cbracket[GET2(cc, 1)] = 0;
|
|
cc += 1 + IMM2_SIZE;
|
|
break;
|
|
|
|
case OP_DNREF:
|
|
case OP_DNREFI:
|
|
case OP_DNCREF:
|
|
count = GET2(cc, 1 + IMM2_SIZE);
|
|
slot = common->name_table + GET2(cc, 1) * common->name_entry_size;
|
|
while (count-- > 0)
|
|
{
|
|
common->optimized_cbracket[GET2(slot, 0)] = 0;
|
|
slot += common->name_entry_size;
|
|
}
|
|
cc += 1 + 2 * IMM2_SIZE;
|
|
break;
|
|
|
|
case OP_RECURSE:
|
|
/* Set its value only once. */
|
|
if (common->recursive_head_ptr == 0)
|
|
{
|
|
common->recursive_head_ptr = common->ovector_start;
|
|
common->ovector_start += sizeof(sljit_sw);
|
|
}
|
|
cc += 1 + LINK_SIZE;
|
|
break;
|
|
|
|
case OP_CALLOUT:
|
|
case OP_CALLOUT_STR:
|
|
if (common->capture_last_ptr == 0)
|
|
{
|
|
common->capture_last_ptr = common->ovector_start;
|
|
common->ovector_start += sizeof(sljit_sw);
|
|
}
|
|
cc += (*cc == OP_CALLOUT) ? PRIV(OP_lengths)[OP_CALLOUT] : GET(cc, 1 + 2*LINK_SIZE);
|
|
break;
|
|
|
|
case OP_ASSERTBACK:
|
|
slot = bracketend(cc);
|
|
if (slot > assert_back_end)
|
|
assert_back_end = slot;
|
|
cc += 1 + LINK_SIZE;
|
|
break;
|
|
|
|
case OP_THEN_ARG:
|
|
common->has_then = TRUE;
|
|
common->control_head_ptr = 1;
|
|
/* Fall through. */
|
|
|
|
case OP_PRUNE_ARG:
|
|
case OP_MARK:
|
|
if (common->mark_ptr == 0)
|
|
{
|
|
common->mark_ptr = common->ovector_start;
|
|
common->ovector_start += sizeof(sljit_sw);
|
|
}
|
|
cc += 1 + 2 + cc[1];
|
|
break;
|
|
|
|
case OP_THEN:
|
|
common->has_then = TRUE;
|
|
common->control_head_ptr = 1;
|
|
cc += 1;
|
|
break;
|
|
|
|
case OP_SKIP:
|
|
if (cc < assert_back_end)
|
|
common->has_skip_in_assert_back = TRUE;
|
|
cc += 1;
|
|
break;
|
|
|
|
case OP_SKIP_ARG:
|
|
common->control_head_ptr = 1;
|
|
common->has_skip_arg = TRUE;
|
|
if (cc < assert_back_end)
|
|
common->has_skip_in_assert_back = TRUE;
|
|
cc += 1 + 2 + cc[1];
|
|
break;
|
|
|
|
default:
|
|
cc = next_opcode(common, cc);
|
|
if (cc == NULL)
|
|
return FALSE;
|
|
break;
|
|
}
|
|
}
|
|
return TRUE;
|
|
}
|
|
|
|
static BOOL is_accelerated_repeat(PCRE2_SPTR cc)
|
|
{
|
|
switch(*cc)
|
|
{
|
|
case OP_TYPESTAR:
|
|
case OP_TYPEMINSTAR:
|
|
case OP_TYPEPLUS:
|
|
case OP_TYPEMINPLUS:
|
|
case OP_TYPEPOSSTAR:
|
|
case OP_TYPEPOSPLUS:
|
|
return (cc[1] != OP_ANYNL && cc[1] != OP_EXTUNI);
|
|
|
|
case OP_STAR:
|
|
case OP_MINSTAR:
|
|
case OP_PLUS:
|
|
case OP_MINPLUS:
|
|
case OP_POSSTAR:
|
|
case OP_POSPLUS:
|
|
|
|
case OP_STARI:
|
|
case OP_MINSTARI:
|
|
case OP_PLUSI:
|
|
case OP_MINPLUSI:
|
|
case OP_POSSTARI:
|
|
case OP_POSPLUSI:
|
|
|
|
case OP_NOTSTAR:
|
|
case OP_NOTMINSTAR:
|
|
case OP_NOTPLUS:
|
|
case OP_NOTMINPLUS:
|
|
case OP_NOTPOSSTAR:
|
|
case OP_NOTPOSPLUS:
|
|
|
|
case OP_NOTSTARI:
|
|
case OP_NOTMINSTARI:
|
|
case OP_NOTPLUSI:
|
|
case OP_NOTMINPLUSI:
|
|
case OP_NOTPOSSTARI:
|
|
case OP_NOTPOSPLUSI:
|
|
return TRUE;
|
|
|
|
case OP_CLASS:
|
|
case OP_NCLASS:
|
|
#if defined SUPPORT_UNICODE || PCRE2_CODE_UNIT_WIDTH != 8
|
|
case OP_XCLASS:
|
|
cc += (*cc == OP_XCLASS) ? GET(cc, 1) : (int)(1 + (32 / sizeof(PCRE2_UCHAR)));
|
|
#else
|
|
cc += (1 + (32 / sizeof(PCRE2_UCHAR)));
|
|
#endif
|
|
|
|
switch(*cc)
|
|
{
|
|
case OP_CRSTAR:
|
|
case OP_CRMINSTAR:
|
|
case OP_CRPLUS:
|
|
case OP_CRMINPLUS:
|
|
case OP_CRPOSSTAR:
|
|
case OP_CRPOSPLUS:
|
|
return TRUE;
|
|
}
|
|
break;
|
|
}
|
|
return FALSE;
|
|
}
|
|
|
|
static SLJIT_INLINE BOOL detect_fast_forward_skip(compiler_common *common, int *private_data_start)
|
|
{
|
|
PCRE2_SPTR cc = common->start;
|
|
PCRE2_SPTR end;
|
|
|
|
/* Skip not repeated brackets. */
|
|
while (TRUE)
|
|
{
|
|
switch(*cc)
|
|
{
|
|
case OP_SOD:
|
|
case OP_SOM:
|
|
case OP_SET_SOM:
|
|
case OP_NOT_WORD_BOUNDARY:
|
|
case OP_WORD_BOUNDARY:
|
|
case OP_EODN:
|
|
case OP_EOD:
|
|
case OP_CIRC:
|
|
case OP_CIRCM:
|
|
case OP_DOLL:
|
|
case OP_DOLLM:
|
|
/* Zero width assertions. */
|
|
cc++;
|
|
continue;
|
|
}
|
|
|
|
if (*cc != OP_BRA && *cc != OP_CBRA)
|
|
break;
|
|
|
|
end = cc + GET(cc, 1);
|
|
if (*end != OP_KET || PRIVATE_DATA(end) != 0)
|
|
return FALSE;
|
|
if (*cc == OP_CBRA)
|
|
{
|
|
if (common->optimized_cbracket[GET2(cc, 1 + LINK_SIZE)] == 0)
|
|
return FALSE;
|
|
cc += IMM2_SIZE;
|
|
}
|
|
cc += 1 + LINK_SIZE;
|
|
}
|
|
|
|
if (is_accelerated_repeat(cc))
|
|
{
|
|
common->fast_forward_bc_ptr = cc;
|
|
common->private_data_ptrs[(cc + 1) - common->start] = *private_data_start;
|
|
*private_data_start += sizeof(sljit_sw);
|
|
return TRUE;
|
|
}
|
|
return FALSE;
|
|
}
|
|
|
|
static SLJIT_INLINE void detect_fast_fail(compiler_common *common, PCRE2_SPTR cc, int *private_data_start, sljit_s32 depth)
|
|
{
|
|
PCRE2_SPTR next_alt;
|
|
|
|
SLJIT_ASSERT(*cc == OP_BRA || *cc == OP_CBRA);
|
|
|
|
if (*cc == OP_CBRA && common->optimized_cbracket[GET2(cc, 1 + LINK_SIZE)] == 0)
|
|
return;
|
|
|
|
next_alt = bracketend(cc) - (1 + LINK_SIZE);
|
|
if (*next_alt != OP_KET || PRIVATE_DATA(next_alt) != 0)
|
|
return;
|
|
|
|
do
|
|
{
|
|
next_alt = cc + GET(cc, 1);
|
|
|
|
cc += 1 + LINK_SIZE + ((*cc == OP_CBRA) ? IMM2_SIZE : 0);
|
|
|
|
while (TRUE)
|
|
{
|
|
switch(*cc)
|
|
{
|
|
case OP_SOD:
|
|
case OP_SOM:
|
|
case OP_SET_SOM:
|
|
case OP_NOT_WORD_BOUNDARY:
|
|
case OP_WORD_BOUNDARY:
|
|
case OP_EODN:
|
|
case OP_EOD:
|
|
case OP_CIRC:
|
|
case OP_CIRCM:
|
|
case OP_DOLL:
|
|
case OP_DOLLM:
|
|
/* Zero width assertions. */
|
|
cc++;
|
|
continue;
|
|
}
|
|
break;
|
|
}
|
|
|
|
if (depth > 0 && (*cc == OP_BRA || *cc == OP_CBRA))
|
|
detect_fast_fail(common, cc, private_data_start, depth - 1);
|
|
|
|
if (is_accelerated_repeat(cc))
|
|
{
|
|
common->private_data_ptrs[(cc + 1) - common->start] = *private_data_start;
|
|
|
|
if (common->fast_fail_start_ptr == 0)
|
|
common->fast_fail_start_ptr = *private_data_start;
|
|
|
|
*private_data_start += sizeof(sljit_sw);
|
|
common->fast_fail_end_ptr = *private_data_start;
|
|
|
|
if (*private_data_start > SLJIT_MAX_LOCAL_SIZE)
|
|
return;
|
|
}
|
|
|
|
cc = next_alt;
|
|
}
|
|
while (*cc == OP_ALT);
|
|
}
|
|
|
|
static int get_class_iterator_size(PCRE2_SPTR cc)
|
|
{
|
|
sljit_u32 min;
|
|
sljit_u32 max;
|
|
switch(*cc)
|
|
{
|
|
case OP_CRSTAR:
|
|
case OP_CRPLUS:
|
|
return 2;
|
|
|
|
case OP_CRMINSTAR:
|
|
case OP_CRMINPLUS:
|
|
case OP_CRQUERY:
|
|
case OP_CRMINQUERY:
|
|
return 1;
|
|
|
|
case OP_CRRANGE:
|
|
case OP_CRMINRANGE:
|
|
min = GET2(cc, 1);
|
|
max = GET2(cc, 1 + IMM2_SIZE);
|
|
if (max == 0)
|
|
return (*cc == OP_CRRANGE) ? 2 : 1;
|
|
max -= min;
|
|
if (max > 2)
|
|
max = 2;
|
|
return max;
|
|
|
|
default:
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
static BOOL detect_repeat(compiler_common *common, PCRE2_SPTR begin)
|
|
{
|
|
PCRE2_SPTR end = bracketend(begin);
|
|
PCRE2_SPTR next;
|
|
PCRE2_SPTR next_end;
|
|
PCRE2_SPTR max_end;
|
|
PCRE2_UCHAR type;
|
|
sljit_sw length = end - begin;
|
|
sljit_s32 min, max, i;
|
|
|
|
/* Detect fixed iterations first. */
|
|
if (end[-(1 + LINK_SIZE)] != OP_KET)
|
|
return FALSE;
|
|
|
|
/* Already detected repeat. */
|
|
if (common->private_data_ptrs[end - common->start - LINK_SIZE] != 0)
|
|
return TRUE;
|
|
|
|
next = end;
|
|
min = 1;
|
|
while (1)
|
|
{
|
|
if (*next != *begin)
|
|
break;
|
|
next_end = bracketend(next);
|
|
if (next_end - next != length || memcmp(begin, next, IN_UCHARS(length)) != 0)
|
|
break;
|
|
next = next_end;
|
|
min++;
|
|
}
|
|
|
|
if (min == 2)
|
|
return FALSE;
|
|
|
|
max = 0;
|
|
max_end = next;
|
|
if (*next == OP_BRAZERO || *next == OP_BRAMINZERO)
|
|
{
|
|
type = *next;
|
|
while (1)
|
|
{
|
|
if (next[0] != type || next[1] != OP_BRA || next[2 + LINK_SIZE] != *begin)
|
|
break;
|
|
next_end = bracketend(next + 2 + LINK_SIZE);
|
|
if (next_end - next != (length + 2 + LINK_SIZE) || memcmp(begin, next + 2 + LINK_SIZE, IN_UCHARS(length)) != 0)
|
|
break;
|
|
next = next_end;
|
|
max++;
|
|
}
|
|
|
|
if (next[0] == type && next[1] == *begin && max >= 1)
|
|
{
|
|
next_end = bracketend(next + 1);
|
|
if (next_end - next == (length + 1) && memcmp(begin, next + 1, IN_UCHARS(length)) == 0)
|
|
{
|
|
for (i = 0; i < max; i++, next_end += 1 + LINK_SIZE)
|
|
if (*next_end != OP_KET)
|
|
break;
|
|
|
|
if (i == max)
|
|
{
|
|
common->private_data_ptrs[max_end - common->start - LINK_SIZE] = next_end - max_end;
|
|
common->private_data_ptrs[max_end - common->start - LINK_SIZE + 1] = (type == OP_BRAZERO) ? OP_UPTO : OP_MINUPTO;
|
|
/* +2 the original and the last. */
|
|
common->private_data_ptrs[max_end - common->start - LINK_SIZE + 2] = max + 2;
|
|
if (min == 1)
|
|
return TRUE;
|
|
min--;
|
|
max_end -= (1 + LINK_SIZE) + GET(max_end, -LINK_SIZE);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
if (min >= 3)
|
|
{
|
|
common->private_data_ptrs[end - common->start - LINK_SIZE] = max_end - end;
|
|
common->private_data_ptrs[end - common->start - LINK_SIZE + 1] = OP_EXACT;
|
|
common->private_data_ptrs[end - common->start - LINK_SIZE + 2] = min;
|
|
return TRUE;
|
|
}
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
#define CASE_ITERATOR_PRIVATE_DATA_1 \
|
|
case OP_MINSTAR: \
|
|
case OP_MINPLUS: \
|
|
case OP_QUERY: \
|
|
case OP_MINQUERY: \
|
|
case OP_MINSTARI: \
|
|
case OP_MINPLUSI: \
|
|
case OP_QUERYI: \
|
|
case OP_MINQUERYI: \
|
|
case OP_NOTMINSTAR: \
|
|
case OP_NOTMINPLUS: \
|
|
case OP_NOTQUERY: \
|
|
case OP_NOTMINQUERY: \
|
|
case OP_NOTMINSTARI: \
|
|
case OP_NOTMINPLUSI: \
|
|
case OP_NOTQUERYI: \
|
|
case OP_NOTMINQUERYI:
|
|
|
|
#define CASE_ITERATOR_PRIVATE_DATA_2A \
|
|
case OP_STAR: \
|
|
case OP_PLUS: \
|
|
case OP_STARI: \
|
|
case OP_PLUSI: \
|
|
case OP_NOTSTAR: \
|
|
case OP_NOTPLUS: \
|
|
case OP_NOTSTARI: \
|
|
case OP_NOTPLUSI:
|
|
|
|
#define CASE_ITERATOR_PRIVATE_DATA_2B \
|
|
case OP_UPTO: \
|
|
case OP_MINUPTO: \
|
|
case OP_UPTOI: \
|
|
case OP_MINUPTOI: \
|
|
case OP_NOTUPTO: \
|
|
case OP_NOTMINUPTO: \
|
|
case OP_NOTUPTOI: \
|
|
case OP_NOTMINUPTOI:
|
|
|
|
#define CASE_ITERATOR_TYPE_PRIVATE_DATA_1 \
|
|
case OP_TYPEMINSTAR: \
|
|
case OP_TYPEMINPLUS: \
|
|
case OP_TYPEQUERY: \
|
|
case OP_TYPEMINQUERY:
|
|
|
|
#define CASE_ITERATOR_TYPE_PRIVATE_DATA_2A \
|
|
case OP_TYPESTAR: \
|
|
case OP_TYPEPLUS:
|
|
|
|
#define CASE_ITERATOR_TYPE_PRIVATE_DATA_2B \
|
|
case OP_TYPEUPTO: \
|
|
case OP_TYPEMINUPTO:
|
|
|
|
static void set_private_data_ptrs(compiler_common *common, int *private_data_start, PCRE2_SPTR ccend)
|
|
{
|
|
PCRE2_SPTR cc = common->start;
|
|
PCRE2_SPTR alternative;
|
|
PCRE2_SPTR end = NULL;
|
|
int private_data_ptr = *private_data_start;
|
|
int space, size, bracketlen;
|
|
BOOL repeat_check = TRUE;
|
|
|
|
while (cc < ccend)
|
|
{
|
|
space = 0;
|
|
size = 0;
|
|
bracketlen = 0;
|
|
if (private_data_ptr > SLJIT_MAX_LOCAL_SIZE)
|
|
break;
|
|
|
|
if (repeat_check && (*cc == OP_ONCE || *cc == OP_ONCE_NC || *cc == OP_BRA || *cc == OP_CBRA || *cc == OP_COND))
|
|
{
|
|
if (detect_repeat(common, cc))
|
|
{
|
|
/* These brackets are converted to repeats, so no global
|
|
based single character repeat is allowed. */
|
|
if (cc >= end)
|
|
end = bracketend(cc);
|
|
}
|
|
}
|
|
repeat_check = TRUE;
|
|
|
|
switch(*cc)
|
|
{
|
|
case OP_KET:
|
|
if (common->private_data_ptrs[cc + 1 - common->start] != 0)
|
|
{
|
|
common->private_data_ptrs[cc - common->start] = private_data_ptr;
|
|
private_data_ptr += sizeof(sljit_sw);
|
|
cc += common->private_data_ptrs[cc + 1 - common->start];
|
|
}
|
|
cc += 1 + LINK_SIZE;
|
|
break;
|
|
|
|
case OP_ASSERT:
|
|
case OP_ASSERT_NOT:
|
|
case OP_ASSERTBACK:
|
|
case OP_ASSERTBACK_NOT:
|
|
case OP_ONCE:
|
|
case OP_ONCE_NC:
|
|
case OP_BRAPOS:
|
|
case OP_SBRA:
|
|
case OP_SBRAPOS:
|
|
case OP_SCOND:
|
|
common->private_data_ptrs[cc - common->start] = private_data_ptr;
|
|
private_data_ptr += sizeof(sljit_sw);
|
|
bracketlen = 1 + LINK_SIZE;
|
|
break;
|
|
|
|
case OP_CBRAPOS:
|
|
case OP_SCBRAPOS:
|
|
common->private_data_ptrs[cc - common->start] = private_data_ptr;
|
|
private_data_ptr += sizeof(sljit_sw);
|
|
bracketlen = 1 + LINK_SIZE + IMM2_SIZE;
|
|
break;
|
|
|
|
case OP_COND:
|
|
/* Might be a hidden SCOND. */
|
|
alternative = cc + GET(cc, 1);
|
|
if (*alternative == OP_KETRMAX || *alternative == OP_KETRMIN)
|
|
{
|
|
common->private_data_ptrs[cc - common->start] = private_data_ptr;
|
|
private_data_ptr += sizeof(sljit_sw);
|
|
}
|
|
bracketlen = 1 + LINK_SIZE;
|
|
break;
|
|
|
|
case OP_BRA:
|
|
bracketlen = 1 + LINK_SIZE;
|
|
break;
|
|
|
|
case OP_CBRA:
|
|
case OP_SCBRA:
|
|
bracketlen = 1 + LINK_SIZE + IMM2_SIZE;
|
|
break;
|
|
|
|
case OP_BRAZERO:
|
|
case OP_BRAMINZERO:
|
|
case OP_BRAPOSZERO:
|
|
repeat_check = FALSE;
|
|
size = 1;
|
|
break;
|
|
|
|
CASE_ITERATOR_PRIVATE_DATA_1
|
|
space = 1;
|
|
size = -2;
|
|
break;
|
|
|
|
CASE_ITERATOR_PRIVATE_DATA_2A
|
|
space = 2;
|
|
size = -2;
|
|
break;
|
|
|
|
CASE_ITERATOR_PRIVATE_DATA_2B
|
|
space = 2;
|
|
size = -(2 + IMM2_SIZE);
|
|
break;
|
|
|
|
CASE_ITERATOR_TYPE_PRIVATE_DATA_1
|
|
space = 1;
|
|
size = 1;
|
|
break;
|
|
|
|
CASE_ITERATOR_TYPE_PRIVATE_DATA_2A
|
|
if (cc[1] != OP_ANYNL && cc[1] != OP_EXTUNI)
|
|
space = 2;
|
|
size = 1;
|
|
break;
|
|
|
|
case OP_TYPEUPTO:
|
|
if (cc[1 + IMM2_SIZE] != OP_ANYNL && cc[1 + IMM2_SIZE] != OP_EXTUNI)
|
|
space = 2;
|
|
size = 1 + IMM2_SIZE;
|
|
break;
|
|
|
|
case OP_TYPEMINUPTO:
|
|
space = 2;
|
|
size = 1 + IMM2_SIZE;
|
|
break;
|
|
|
|
case OP_CLASS:
|
|
case OP_NCLASS:
|
|
space = get_class_iterator_size(cc + size);
|
|
size = 1 + 32 / sizeof(PCRE2_UCHAR);
|
|
break;
|
|
|
|
#if defined SUPPORT_UNICODE || PCRE2_CODE_UNIT_WIDTH != 8
|
|
case OP_XCLASS:
|
|
space = get_class_iterator_size(cc + size);
|
|
size = GET(cc, 1);
|
|
break;
|
|
#endif
|
|
|
|
default:
|
|
cc = next_opcode(common, cc);
|
|
SLJIT_ASSERT(cc != NULL);
|
|
break;
|
|
}
|
|
|
|
/* Character iterators, which are not inside a repeated bracket,
|
|
gets a private slot instead of allocating it on the stack. */
|
|
if (space > 0 && cc >= end)
|
|
{
|
|
common->private_data_ptrs[cc - common->start] = private_data_ptr;
|
|
private_data_ptr += sizeof(sljit_sw) * space;
|
|
}
|
|
|
|
if (size != 0)
|
|
{
|
|
if (size < 0)
|
|
{
|
|
cc += -size;
|
|
#ifdef SUPPORT_UNICODE
|
|
if (common->utf && HAS_EXTRALEN(cc[-1])) cc += GET_EXTRALEN(cc[-1]);
|
|
#endif
|
|
}
|
|
else
|
|
cc += size;
|
|
}
|
|
|
|
if (bracketlen > 0)
|
|
{
|
|
if (cc >= end)
|
|
{
|
|
end = bracketend(cc);
|
|
if (end[-1 - LINK_SIZE] == OP_KET)
|
|
end = NULL;
|
|
}
|
|
cc += bracketlen;
|
|
}
|
|
}
|
|
*private_data_start = private_data_ptr;
|
|
}
|
|
|
|
/* Returns with a frame_types (always < 0) if no need for frame. */
|
|
static int get_framesize(compiler_common *common, PCRE2_SPTR cc, PCRE2_SPTR ccend, BOOL recursive, BOOL *needs_control_head)
|
|
{
|
|
int length = 0;
|
|
int possessive = 0;
|
|
BOOL stack_restore = FALSE;
|
|
BOOL setsom_found = recursive;
|
|
BOOL setmark_found = recursive;
|
|
/* The last capture is a local variable even for recursions. */
|
|
BOOL capture_last_found = FALSE;
|
|
|
|
#if defined DEBUG_FORCE_CONTROL_HEAD && DEBUG_FORCE_CONTROL_HEAD
|
|
SLJIT_ASSERT(common->control_head_ptr != 0);
|
|
*needs_control_head = TRUE;
|
|
#else
|
|
*needs_control_head = FALSE;
|
|
#endif
|
|
|
|
if (ccend == NULL)
|
|
{
|
|
ccend = bracketend(cc) - (1 + LINK_SIZE);
|
|
if (!recursive && (*cc == OP_CBRAPOS || *cc == OP_SCBRAPOS))
|
|
{
|
|
possessive = length = (common->capture_last_ptr != 0) ? 5 : 3;
|
|
/* This is correct regardless of common->capture_last_ptr. */
|
|
capture_last_found = TRUE;
|
|
}
|
|
cc = next_opcode(common, cc);
|
|
}
|
|
|
|
SLJIT_ASSERT(cc != NULL);
|
|
while (cc < ccend)
|
|
switch(*cc)
|
|
{
|
|
case OP_SET_SOM:
|
|
SLJIT_ASSERT(common->has_set_som);
|
|
stack_restore = TRUE;
|
|
if (!setsom_found)
|
|
{
|
|
length += 2;
|
|
setsom_found = TRUE;
|
|
}
|
|
cc += 1;
|
|
break;
|
|
|
|
case OP_MARK:
|
|
case OP_PRUNE_ARG:
|
|
case OP_THEN_ARG:
|
|
SLJIT_ASSERT(common->mark_ptr != 0);
|
|
stack_restore = TRUE;
|
|
if (!setmark_found)
|
|
{
|
|
length += 2;
|
|
setmark_found = TRUE;
|
|
}
|
|
if (common->control_head_ptr != 0)
|
|
*needs_control_head = TRUE;
|
|
cc += 1 + 2 + cc[1];
|
|
break;
|
|
|
|
case OP_RECURSE:
|
|
stack_restore = TRUE;
|
|
if (common->has_set_som && !setsom_found)
|
|
{
|
|
length += 2;
|
|
setsom_found = TRUE;
|
|
}
|
|
if (common->mark_ptr != 0 && !setmark_found)
|
|
{
|
|
length += 2;
|
|
setmark_found = TRUE;
|
|
}
|
|
if (common->capture_last_ptr != 0 && !capture_last_found)
|
|
{
|
|
length += 2;
|
|
capture_last_found = TRUE;
|
|
}
|
|
cc += 1 + LINK_SIZE;
|
|
break;
|
|
|
|
case OP_CBRA:
|
|
case OP_CBRAPOS:
|
|
case OP_SCBRA:
|
|
case OP_SCBRAPOS:
|
|
stack_restore = TRUE;
|
|
if (common->capture_last_ptr != 0 && !capture_last_found)
|
|
{
|
|
length += 2;
|
|
capture_last_found = TRUE;
|
|
}
|
|
length += 3;
|
|
cc += 1 + LINK_SIZE + IMM2_SIZE;
|
|
break;
|
|
|
|
case OP_THEN:
|
|
stack_restore = TRUE;
|
|
if (common->control_head_ptr != 0)
|
|
*needs_control_head = TRUE;
|
|
cc ++;
|
|
break;
|
|
|
|
default:
|
|
stack_restore = TRUE;
|
|
/* Fall through. */
|
|
|
|
case OP_NOT_WORD_BOUNDARY:
|
|
case OP_WORD_BOUNDARY:
|
|
case OP_NOT_DIGIT:
|
|
case OP_DIGIT:
|
|
case OP_NOT_WHITESPACE:
|
|
case OP_WHITESPACE:
|
|
case OP_NOT_WORDCHAR:
|
|
case OP_WORDCHAR:
|
|
case OP_ANY:
|
|
case OP_ALLANY:
|
|
case OP_ANYBYTE:
|
|
case OP_NOTPROP:
|
|
case OP_PROP:
|
|
case OP_ANYNL:
|
|
case OP_NOT_HSPACE:
|
|
case OP_HSPACE:
|
|
case OP_NOT_VSPACE:
|
|
case OP_VSPACE:
|
|
case OP_EXTUNI:
|
|
case OP_EODN:
|
|
case OP_EOD:
|
|
case OP_CIRC:
|
|
case OP_CIRCM:
|
|
case OP_DOLL:
|
|
case OP_DOLLM:
|
|
case OP_CHAR:
|
|
case OP_CHARI:
|
|
case OP_NOT:
|
|
case OP_NOTI:
|
|
|
|
case OP_EXACT:
|
|
case OP_POSSTAR:
|
|
case OP_POSPLUS:
|
|
case OP_POSQUERY:
|
|
case OP_POSUPTO:
|
|
|
|
case OP_EXACTI:
|
|
case OP_POSSTARI:
|
|
case OP_POSPLUSI:
|
|
case OP_POSQUERYI:
|
|
case OP_POSUPTOI:
|
|
|
|
case OP_NOTEXACT:
|
|
case OP_NOTPOSSTAR:
|
|
case OP_NOTPOSPLUS:
|
|
case OP_NOTPOSQUERY:
|
|
case OP_NOTPOSUPTO:
|
|
|
|
case OP_NOTEXACTI:
|
|
case OP_NOTPOSSTARI:
|
|
case OP_NOTPOSPLUSI:
|
|
case OP_NOTPOSQUERYI:
|
|
case OP_NOTPOSUPTOI:
|
|
|
|
case OP_TYPEEXACT:
|
|
case OP_TYPEPOSSTAR:
|
|
case OP_TYPEPOSPLUS:
|
|
case OP_TYPEPOSQUERY:
|
|
case OP_TYPEPOSUPTO:
|
|
|
|
case OP_CLASS:
|
|
case OP_NCLASS:
|
|
case OP_XCLASS:
|
|
|
|
case OP_CALLOUT:
|
|
case OP_CALLOUT_STR:
|
|
|
|
cc = next_opcode(common, cc);
|
|
SLJIT_ASSERT(cc != NULL);
|
|
break;
|
|
}
|
|
|
|
/* Possessive quantifiers can use a special case. */
|
|
if (SLJIT_UNLIKELY(possessive == length))
|
|
return stack_restore ? no_frame : no_stack;
|
|
|
|
if (length > 0)
|
|
return length + 1;
|
|
return stack_restore ? no_frame : no_stack;
|
|
}
|
|
|
|
static void init_frame(compiler_common *common, PCRE2_SPTR cc, PCRE2_SPTR ccend, int stackpos, int stacktop, BOOL recursive)
|
|
{
|
|
DEFINE_COMPILER;
|
|
BOOL setsom_found = recursive;
|
|
BOOL setmark_found = recursive;
|
|
/* The last capture is a local variable even for recursions. */
|
|
BOOL capture_last_found = FALSE;
|
|
int offset;
|
|
|
|
/* >= 1 + shortest item size (2) */
|
|
SLJIT_UNUSED_ARG(stacktop);
|
|
SLJIT_ASSERT(stackpos >= stacktop + 2);
|
|
|
|
stackpos = STACK(stackpos);
|
|
if (ccend == NULL)
|
|
{
|
|
ccend = bracketend(cc) - (1 + LINK_SIZE);
|
|
if (recursive || (*cc != OP_CBRAPOS && *cc != OP_SCBRAPOS))
|
|
cc = next_opcode(common, cc);
|
|
}
|
|
|
|
SLJIT_ASSERT(cc != NULL);
|
|
while (cc < ccend)
|
|
switch(*cc)
|
|
{
|
|
case OP_SET_SOM:
|
|
SLJIT_ASSERT(common->has_set_som);
|
|
if (!setsom_found)
|
|
{
|
|
OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_SP), OVECTOR(0));
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), stackpos, SLJIT_IMM, -OVECTOR(0));
|
|
stackpos += (int)sizeof(sljit_sw);
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), stackpos, TMP1, 0);
|
|
stackpos += (int)sizeof(sljit_sw);
|
|
setsom_found = TRUE;
|
|
}
|
|
cc += 1;
|
|
break;
|
|
|
|
case OP_MARK:
|
|
case OP_PRUNE_ARG:
|
|
case OP_THEN_ARG:
|
|
SLJIT_ASSERT(common->mark_ptr != 0);
|
|
if (!setmark_found)
|
|
{
|
|
OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_SP), common->mark_ptr);
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), stackpos, SLJIT_IMM, -common->mark_ptr);
|
|
stackpos += (int)sizeof(sljit_sw);
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), stackpos, TMP1, 0);
|
|
stackpos += (int)sizeof(sljit_sw);
|
|
setmark_found = TRUE;
|
|
}
|
|
cc += 1 + 2 + cc[1];
|
|
break;
|
|
|
|
case OP_RECURSE:
|
|
if (common->has_set_som && !setsom_found)
|
|
{
|
|
OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_SP), OVECTOR(0));
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), stackpos, SLJIT_IMM, -OVECTOR(0));
|
|
stackpos += (int)sizeof(sljit_sw);
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), stackpos, TMP1, 0);
|
|
stackpos += (int)sizeof(sljit_sw);
|
|
setsom_found = TRUE;
|
|
}
|
|
if (common->mark_ptr != 0 && !setmark_found)
|
|
{
|
|
OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_SP), common->mark_ptr);
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), stackpos, SLJIT_IMM, -common->mark_ptr);
|
|
stackpos += (int)sizeof(sljit_sw);
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), stackpos, TMP1, 0);
|
|
stackpos += (int)sizeof(sljit_sw);
|
|
setmark_found = TRUE;
|
|
}
|
|
if (common->capture_last_ptr != 0 && !capture_last_found)
|
|
{
|
|
OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_SP), common->capture_last_ptr);
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), stackpos, SLJIT_IMM, -common->capture_last_ptr);
|
|
stackpos += (int)sizeof(sljit_sw);
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), stackpos, TMP1, 0);
|
|
stackpos += (int)sizeof(sljit_sw);
|
|
capture_last_found = TRUE;
|
|
}
|
|
cc += 1 + LINK_SIZE;
|
|
break;
|
|
|
|
case OP_CBRA:
|
|
case OP_CBRAPOS:
|
|
case OP_SCBRA:
|
|
case OP_SCBRAPOS:
|
|
if (common->capture_last_ptr != 0 && !capture_last_found)
|
|
{
|
|
OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_SP), common->capture_last_ptr);
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), stackpos, SLJIT_IMM, -common->capture_last_ptr);
|
|
stackpos += (int)sizeof(sljit_sw);
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), stackpos, TMP1, 0);
|
|
stackpos += (int)sizeof(sljit_sw);
|
|
capture_last_found = TRUE;
|
|
}
|
|
offset = (GET2(cc, 1 + LINK_SIZE)) << 1;
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), stackpos, SLJIT_IMM, OVECTOR(offset));
|
|
stackpos += (int)sizeof(sljit_sw);
|
|
OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_SP), OVECTOR(offset));
|
|
OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(SLJIT_SP), OVECTOR(offset + 1));
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), stackpos, TMP1, 0);
|
|
stackpos += (int)sizeof(sljit_sw);
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), stackpos, TMP2, 0);
|
|
stackpos += (int)sizeof(sljit_sw);
|
|
|
|
cc += 1 + LINK_SIZE + IMM2_SIZE;
|
|
break;
|
|
|
|
default:
|
|
cc = next_opcode(common, cc);
|
|
SLJIT_ASSERT(cc != NULL);
|
|
break;
|
|
}
|
|
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), stackpos, SLJIT_IMM, 0);
|
|
SLJIT_ASSERT(stackpos == STACK(stacktop));
|
|
}
|
|
|
|
static SLJIT_INLINE int get_private_data_copy_length(compiler_common *common, PCRE2_SPTR cc, PCRE2_SPTR ccend, BOOL needs_control_head)
|
|
{
|
|
int private_data_length = needs_control_head ? 3 : 2;
|
|
int size;
|
|
PCRE2_SPTR alternative;
|
|
/* Calculate the sum of the private machine words. */
|
|
while (cc < ccend)
|
|
{
|
|
size = 0;
|
|
switch(*cc)
|
|
{
|
|
case OP_KET:
|
|
if (PRIVATE_DATA(cc) != 0)
|
|
{
|
|
private_data_length++;
|
|
SLJIT_ASSERT(PRIVATE_DATA(cc + 1) != 0);
|
|
cc += PRIVATE_DATA(cc + 1);
|
|
}
|
|
cc += 1 + LINK_SIZE;
|
|
break;
|
|
|
|
case OP_ASSERT:
|
|
case OP_ASSERT_NOT:
|
|
case OP_ASSERTBACK:
|
|
case OP_ASSERTBACK_NOT:
|
|
case OP_ONCE:
|
|
case OP_ONCE_NC:
|
|
case OP_BRAPOS:
|
|
case OP_SBRA:
|
|
case OP_SBRAPOS:
|
|
case OP_SCOND:
|
|
private_data_length++;
|
|
SLJIT_ASSERT(PRIVATE_DATA(cc) != 0);
|
|
cc += 1 + LINK_SIZE;
|
|
break;
|
|
|
|
case OP_CBRA:
|
|
case OP_SCBRA:
|
|
if (common->optimized_cbracket[GET2(cc, 1 + LINK_SIZE)] == 0)
|
|
private_data_length++;
|
|
cc += 1 + LINK_SIZE + IMM2_SIZE;
|
|
break;
|
|
|
|
case OP_CBRAPOS:
|
|
case OP_SCBRAPOS:
|
|
private_data_length += 2;
|
|
cc += 1 + LINK_SIZE + IMM2_SIZE;
|
|
break;
|
|
|
|
case OP_COND:
|
|
/* Might be a hidden SCOND. */
|
|
alternative = cc + GET(cc, 1);
|
|
if (*alternative == OP_KETRMAX || *alternative == OP_KETRMIN)
|
|
private_data_length++;
|
|
cc += 1 + LINK_SIZE;
|
|
break;
|
|
|
|
CASE_ITERATOR_PRIVATE_DATA_1
|
|
if (PRIVATE_DATA(cc))
|
|
private_data_length++;
|
|
cc += 2;
|
|
#ifdef SUPPORT_UNICODE
|
|
if (common->utf && HAS_EXTRALEN(cc[-1])) cc += GET_EXTRALEN(cc[-1]);
|
|
#endif
|
|
break;
|
|
|
|
CASE_ITERATOR_PRIVATE_DATA_2A
|
|
if (PRIVATE_DATA(cc))
|
|
private_data_length += 2;
|
|
cc += 2;
|
|
#ifdef SUPPORT_UNICODE
|
|
if (common->utf && HAS_EXTRALEN(cc[-1])) cc += GET_EXTRALEN(cc[-1]);
|
|
#endif
|
|
break;
|
|
|
|
CASE_ITERATOR_PRIVATE_DATA_2B
|
|
if (PRIVATE_DATA(cc))
|
|
private_data_length += 2;
|
|
cc += 2 + IMM2_SIZE;
|
|
#ifdef SUPPORT_UNICODE
|
|
if (common->utf && HAS_EXTRALEN(cc[-1])) cc += GET_EXTRALEN(cc[-1]);
|
|
#endif
|
|
break;
|
|
|
|
CASE_ITERATOR_TYPE_PRIVATE_DATA_1
|
|
if (PRIVATE_DATA(cc))
|
|
private_data_length++;
|
|
cc += 1;
|
|
break;
|
|
|
|
CASE_ITERATOR_TYPE_PRIVATE_DATA_2A
|
|
if (PRIVATE_DATA(cc))
|
|
private_data_length += 2;
|
|
cc += 1;
|
|
break;
|
|
|
|
CASE_ITERATOR_TYPE_PRIVATE_DATA_2B
|
|
if (PRIVATE_DATA(cc))
|
|
private_data_length += 2;
|
|
cc += 1 + IMM2_SIZE;
|
|
break;
|
|
|
|
case OP_CLASS:
|
|
case OP_NCLASS:
|
|
#if defined SUPPORT_UNICODE || PCRE2_CODE_UNIT_WIDTH != 8
|
|
case OP_XCLASS:
|
|
size = (*cc == OP_XCLASS) ? GET(cc, 1) : 1 + 32 / (int)sizeof(PCRE2_UCHAR);
|
|
#else
|
|
size = 1 + 32 / (int)sizeof(PCRE2_UCHAR);
|
|
#endif
|
|
if (PRIVATE_DATA(cc))
|
|
private_data_length += get_class_iterator_size(cc + size);
|
|
cc += size;
|
|
break;
|
|
|
|
default:
|
|
cc = next_opcode(common, cc);
|
|
SLJIT_ASSERT(cc != NULL);
|
|
break;
|
|
}
|
|
}
|
|
SLJIT_ASSERT(cc == ccend);
|
|
return private_data_length;
|
|
}
|
|
|
|
static void copy_private_data(compiler_common *common, PCRE2_SPTR cc, PCRE2_SPTR ccend,
|
|
BOOL save, int stackptr, int stacktop, BOOL needs_control_head)
|
|
{
|
|
DEFINE_COMPILER;
|
|
int srcw[2];
|
|
int count, size;
|
|
BOOL tmp1next = TRUE;
|
|
BOOL tmp1empty = TRUE;
|
|
BOOL tmp2empty = TRUE;
|
|
PCRE2_SPTR alternative;
|
|
enum {
|
|
start,
|
|
loop,
|
|
end
|
|
} status;
|
|
|
|
status = save ? start : loop;
|
|
stackptr = STACK(stackptr - 2);
|
|
stacktop = STACK(stacktop - 1);
|
|
|
|
if (!save)
|
|
{
|
|
stackptr += (needs_control_head ? 2 : 1) * sizeof(sljit_sw);
|
|
if (stackptr < stacktop)
|
|
{
|
|
OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(STACK_TOP), stackptr);
|
|
stackptr += sizeof(sljit_sw);
|
|
tmp1empty = FALSE;
|
|
}
|
|
if (stackptr < stacktop)
|
|
{
|
|
OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(STACK_TOP), stackptr);
|
|
stackptr += sizeof(sljit_sw);
|
|
tmp2empty = FALSE;
|
|
}
|
|
/* The tmp1next must be TRUE in either way. */
|
|
}
|
|
|
|
do
|
|
{
|
|
count = 0;
|
|
switch(status)
|
|
{
|
|
case start:
|
|
SLJIT_ASSERT(save && common->recursive_head_ptr != 0);
|
|
count = 1;
|
|
srcw[0] = common->recursive_head_ptr;
|
|
if (needs_control_head)
|
|
{
|
|
SLJIT_ASSERT(common->control_head_ptr != 0);
|
|
count = 2;
|
|
srcw[1] = common->control_head_ptr;
|
|
}
|
|
status = loop;
|
|
break;
|
|
|
|
case loop:
|
|
if (cc >= ccend)
|
|
{
|
|
status = end;
|
|
break;
|
|
}
|
|
|
|
switch(*cc)
|
|
{
|
|
case OP_KET:
|
|
if (PRIVATE_DATA(cc) != 0)
|
|
{
|
|
count = 1;
|
|
srcw[0] = PRIVATE_DATA(cc);
|
|
SLJIT_ASSERT(PRIVATE_DATA(cc + 1) != 0);
|
|
cc += PRIVATE_DATA(cc + 1);
|
|
}
|
|
cc += 1 + LINK_SIZE;
|
|
break;
|
|
|
|
case OP_ASSERT:
|
|
case OP_ASSERT_NOT:
|
|
case OP_ASSERTBACK:
|
|
case OP_ASSERTBACK_NOT:
|
|
case OP_ONCE:
|
|
case OP_ONCE_NC:
|
|
case OP_BRAPOS:
|
|
case OP_SBRA:
|
|
case OP_SBRAPOS:
|
|
case OP_SCOND:
|
|
count = 1;
|
|
srcw[0] = PRIVATE_DATA(cc);
|
|
SLJIT_ASSERT(srcw[0] != 0);
|
|
cc += 1 + LINK_SIZE;
|
|
break;
|
|
|
|
case OP_CBRA:
|
|
case OP_SCBRA:
|
|
if (common->optimized_cbracket[GET2(cc, 1 + LINK_SIZE)] == 0)
|
|
{
|
|
count = 1;
|
|
srcw[0] = OVECTOR_PRIV(GET2(cc, 1 + LINK_SIZE));
|
|
}
|
|
cc += 1 + LINK_SIZE + IMM2_SIZE;
|
|
break;
|
|
|
|
case OP_CBRAPOS:
|
|
case OP_SCBRAPOS:
|
|
count = 2;
|
|
srcw[0] = PRIVATE_DATA(cc);
|
|
srcw[1] = OVECTOR_PRIV(GET2(cc, 1 + LINK_SIZE));
|
|
SLJIT_ASSERT(srcw[0] != 0 && srcw[1] != 0);
|
|
cc += 1 + LINK_SIZE + IMM2_SIZE;
|
|
break;
|
|
|
|
case OP_COND:
|
|
/* Might be a hidden SCOND. */
|
|
alternative = cc + GET(cc, 1);
|
|
if (*alternative == OP_KETRMAX || *alternative == OP_KETRMIN)
|
|
{
|
|
count = 1;
|
|
srcw[0] = PRIVATE_DATA(cc);
|
|
SLJIT_ASSERT(srcw[0] != 0);
|
|
}
|
|
cc += 1 + LINK_SIZE;
|
|
break;
|
|
|
|
CASE_ITERATOR_PRIVATE_DATA_1
|
|
if (PRIVATE_DATA(cc))
|
|
{
|
|
count = 1;
|
|
srcw[0] = PRIVATE_DATA(cc);
|
|
}
|
|
cc += 2;
|
|
#ifdef SUPPORT_UNICODE
|
|
if (common->utf && HAS_EXTRALEN(cc[-1])) cc += GET_EXTRALEN(cc[-1]);
|
|
#endif
|
|
break;
|
|
|
|
CASE_ITERATOR_PRIVATE_DATA_2A
|
|
if (PRIVATE_DATA(cc))
|
|
{
|
|
count = 2;
|
|
srcw[0] = PRIVATE_DATA(cc);
|
|
srcw[1] = PRIVATE_DATA(cc) + sizeof(sljit_sw);
|
|
}
|
|
cc += 2;
|
|
#ifdef SUPPORT_UNICODE
|
|
if (common->utf && HAS_EXTRALEN(cc[-1])) cc += GET_EXTRALEN(cc[-1]);
|
|
#endif
|
|
break;
|
|
|
|
CASE_ITERATOR_PRIVATE_DATA_2B
|
|
if (PRIVATE_DATA(cc))
|
|
{
|
|
count = 2;
|
|
srcw[0] = PRIVATE_DATA(cc);
|
|
srcw[1] = PRIVATE_DATA(cc) + sizeof(sljit_sw);
|
|
}
|
|
cc += 2 + IMM2_SIZE;
|
|
#ifdef SUPPORT_UNICODE
|
|
if (common->utf && HAS_EXTRALEN(cc[-1])) cc += GET_EXTRALEN(cc[-1]);
|
|
#endif
|
|
break;
|
|
|
|
CASE_ITERATOR_TYPE_PRIVATE_DATA_1
|
|
if (PRIVATE_DATA(cc))
|
|
{
|
|
count = 1;
|
|
srcw[0] = PRIVATE_DATA(cc);
|
|
}
|
|
cc += 1;
|
|
break;
|
|
|
|
CASE_ITERATOR_TYPE_PRIVATE_DATA_2A
|
|
if (PRIVATE_DATA(cc))
|
|
{
|
|
count = 2;
|
|
srcw[0] = PRIVATE_DATA(cc);
|
|
srcw[1] = srcw[0] + sizeof(sljit_sw);
|
|
}
|
|
cc += 1;
|
|
break;
|
|
|
|
CASE_ITERATOR_TYPE_PRIVATE_DATA_2B
|
|
if (PRIVATE_DATA(cc))
|
|
{
|
|
count = 2;
|
|
srcw[0] = PRIVATE_DATA(cc);
|
|
srcw[1] = srcw[0] + sizeof(sljit_sw);
|
|
}
|
|
cc += 1 + IMM2_SIZE;
|
|
break;
|
|
|
|
case OP_CLASS:
|
|
case OP_NCLASS:
|
|
#if defined SUPPORT_UNICODE || PCRE2_CODE_UNIT_WIDTH != 8
|
|
case OP_XCLASS:
|
|
size = (*cc == OP_XCLASS) ? GET(cc, 1) : 1 + 32 / (int)sizeof(PCRE2_UCHAR);
|
|
#else
|
|
size = 1 + 32 / (int)sizeof(PCRE2_UCHAR);
|
|
#endif
|
|
if (PRIVATE_DATA(cc))
|
|
switch(get_class_iterator_size(cc + size))
|
|
{
|
|
case 1:
|
|
count = 1;
|
|
srcw[0] = PRIVATE_DATA(cc);
|
|
break;
|
|
|
|
case 2:
|
|
count = 2;
|
|
srcw[0] = PRIVATE_DATA(cc);
|
|
srcw[1] = srcw[0] + sizeof(sljit_sw);
|
|
break;
|
|
|
|
default:
|
|
SLJIT_ASSERT_STOP();
|
|
break;
|
|
}
|
|
cc += size;
|
|
break;
|
|
|
|
default:
|
|
cc = next_opcode(common, cc);
|
|
SLJIT_ASSERT(cc != NULL);
|
|
break;
|
|
}
|
|
break;
|
|
|
|
case end:
|
|
SLJIT_ASSERT_STOP();
|
|
break;
|
|
}
|
|
|
|
while (count > 0)
|
|
{
|
|
count--;
|
|
if (save)
|
|
{
|
|
if (tmp1next)
|
|
{
|
|
if (!tmp1empty)
|
|
{
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), stackptr, TMP1, 0);
|
|
stackptr += sizeof(sljit_sw);
|
|
}
|
|
OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_SP), srcw[count]);
|
|
tmp1empty = FALSE;
|
|
tmp1next = FALSE;
|
|
}
|
|
else
|
|
{
|
|
if (!tmp2empty)
|
|
{
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), stackptr, TMP2, 0);
|
|
stackptr += sizeof(sljit_sw);
|
|
}
|
|
OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(SLJIT_SP), srcw[count]);
|
|
tmp2empty = FALSE;
|
|
tmp1next = TRUE;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if (tmp1next)
|
|
{
|
|
SLJIT_ASSERT(!tmp1empty);
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), srcw[count], TMP1, 0);
|
|
tmp1empty = stackptr >= stacktop;
|
|
if (!tmp1empty)
|
|
{
|
|
OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(STACK_TOP), stackptr);
|
|
stackptr += sizeof(sljit_sw);
|
|
}
|
|
tmp1next = FALSE;
|
|
}
|
|
else
|
|
{
|
|
SLJIT_ASSERT(!tmp2empty);
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), srcw[count], TMP2, 0);
|
|
tmp2empty = stackptr >= stacktop;
|
|
if (!tmp2empty)
|
|
{
|
|
OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(STACK_TOP), stackptr);
|
|
stackptr += sizeof(sljit_sw);
|
|
}
|
|
tmp1next = TRUE;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
while (status != end);
|
|
|
|
if (save)
|
|
{
|
|
if (tmp1next)
|
|
{
|
|
if (!tmp1empty)
|
|
{
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), stackptr, TMP1, 0);
|
|
stackptr += sizeof(sljit_sw);
|
|
}
|
|
if (!tmp2empty)
|
|
{
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), stackptr, TMP2, 0);
|
|
stackptr += sizeof(sljit_sw);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if (!tmp2empty)
|
|
{
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), stackptr, TMP2, 0);
|
|
stackptr += sizeof(sljit_sw);
|
|
}
|
|
if (!tmp1empty)
|
|
{
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), stackptr, TMP1, 0);
|
|
stackptr += sizeof(sljit_sw);
|
|
}
|
|
}
|
|
}
|
|
SLJIT_ASSERT(cc == ccend && stackptr == stacktop && (save || (tmp1empty && tmp2empty)));
|
|
}
|
|
|
|
static SLJIT_INLINE PCRE2_SPTR set_then_offsets(compiler_common *common, PCRE2_SPTR cc, sljit_u8 *current_offset)
|
|
{
|
|
PCRE2_SPTR end = bracketend(cc);
|
|
BOOL has_alternatives = cc[GET(cc, 1)] == OP_ALT;
|
|
|
|
/* Assert captures then. */
|
|
if (*cc >= OP_ASSERT && *cc <= OP_ASSERTBACK_NOT)
|
|
current_offset = NULL;
|
|
/* Conditional block does not. */
|
|
if (*cc == OP_COND || *cc == OP_SCOND)
|
|
has_alternatives = FALSE;
|
|
|
|
cc = next_opcode(common, cc);
|
|
if (has_alternatives)
|
|
current_offset = common->then_offsets + (cc - common->start);
|
|
|
|
while (cc < end)
|
|
{
|
|
if ((*cc >= OP_ASSERT && *cc <= OP_ASSERTBACK_NOT) || (*cc >= OP_ONCE && *cc <= OP_SCOND))
|
|
cc = set_then_offsets(common, cc, current_offset);
|
|
else
|
|
{
|
|
if (*cc == OP_ALT && has_alternatives)
|
|
current_offset = common->then_offsets + (cc + 1 + LINK_SIZE - common->start);
|
|
if (*cc >= OP_THEN && *cc <= OP_THEN_ARG && current_offset != NULL)
|
|
*current_offset = 1;
|
|
cc = next_opcode(common, cc);
|
|
}
|
|
}
|
|
|
|
return end;
|
|
}
|
|
|
|
#undef CASE_ITERATOR_PRIVATE_DATA_1
|
|
#undef CASE_ITERATOR_PRIVATE_DATA_2A
|
|
#undef CASE_ITERATOR_PRIVATE_DATA_2B
|
|
#undef CASE_ITERATOR_TYPE_PRIVATE_DATA_1
|
|
#undef CASE_ITERATOR_TYPE_PRIVATE_DATA_2A
|
|
#undef CASE_ITERATOR_TYPE_PRIVATE_DATA_2B
|
|
|
|
static SLJIT_INLINE BOOL is_powerof2(unsigned int value)
|
|
{
|
|
return (value & (value - 1)) == 0;
|
|
}
|
|
|
|
static SLJIT_INLINE void set_jumps(jump_list *list, struct sljit_label *label)
|
|
{
|
|
while (list)
|
|
{
|
|
/* sljit_set_label is clever enough to do nothing
|
|
if either the jump or the label is NULL. */
|
|
SET_LABEL(list->jump, label);
|
|
list = list->next;
|
|
}
|
|
}
|
|
|
|
static SLJIT_INLINE void add_jump(struct sljit_compiler *compiler, jump_list **list, struct sljit_jump *jump)
|
|
{
|
|
jump_list *list_item = sljit_alloc_memory(compiler, sizeof(jump_list));
|
|
if (list_item)
|
|
{
|
|
list_item->next = *list;
|
|
list_item->jump = jump;
|
|
*list = list_item;
|
|
}
|
|
}
|
|
|
|
static void add_stub(compiler_common *common, struct sljit_jump *start)
|
|
{
|
|
DEFINE_COMPILER;
|
|
stub_list *list_item = sljit_alloc_memory(compiler, sizeof(stub_list));
|
|
|
|
if (list_item)
|
|
{
|
|
list_item->start = start;
|
|
list_item->quit = LABEL();
|
|
list_item->next = common->stubs;
|
|
common->stubs = list_item;
|
|
}
|
|
}
|
|
|
|
static void flush_stubs(compiler_common *common)
|
|
{
|
|
DEFINE_COMPILER;
|
|
stub_list *list_item = common->stubs;
|
|
|
|
while (list_item)
|
|
{
|
|
JUMPHERE(list_item->start);
|
|
add_jump(compiler, &common->stackalloc, JUMP(SLJIT_FAST_CALL));
|
|
JUMPTO(SLJIT_JUMP, list_item->quit);
|
|
list_item = list_item->next;
|
|
}
|
|
common->stubs = NULL;
|
|
}
|
|
|
|
static void add_label_addr(compiler_common *common, sljit_uw *update_addr)
|
|
{
|
|
DEFINE_COMPILER;
|
|
label_addr_list *label_addr;
|
|
|
|
label_addr = sljit_alloc_memory(compiler, sizeof(label_addr_list));
|
|
if (label_addr == NULL)
|
|
return;
|
|
label_addr->label = LABEL();
|
|
label_addr->update_addr = update_addr;
|
|
label_addr->next = common->label_addrs;
|
|
common->label_addrs = label_addr;
|
|
}
|
|
|
|
static SLJIT_INLINE void count_match(compiler_common *common)
|
|
{
|
|
DEFINE_COMPILER;
|
|
|
|
OP2(SLJIT_SUB | SLJIT_SET_E, COUNT_MATCH, 0, COUNT_MATCH, 0, SLJIT_IMM, 1);
|
|
add_jump(compiler, &common->calllimit, JUMP(SLJIT_ZERO));
|
|
}
|
|
|
|
static SLJIT_INLINE void allocate_stack(compiler_common *common, int size)
|
|
{
|
|
/* May destroy all locals and registers except TMP2. */
|
|
DEFINE_COMPILER;
|
|
|
|
SLJIT_ASSERT(size > 0);
|
|
OP2(SLJIT_ADD, STACK_TOP, 0, STACK_TOP, 0, SLJIT_IMM, size * sizeof(sljit_sw));
|
|
#ifdef DESTROY_REGISTERS
|
|
OP1(SLJIT_MOV, TMP1, 0, SLJIT_IMM, 12345);
|
|
OP1(SLJIT_MOV, TMP3, 0, TMP1, 0);
|
|
OP1(SLJIT_MOV, RETURN_ADDR, 0, TMP1, 0);
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), LOCALS0, TMP1, 0);
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), LOCALS1, TMP1, 0);
|
|
#endif
|
|
add_stub(common, CMP(SLJIT_GREATER, STACK_TOP, 0, STACK_LIMIT, 0));
|
|
}
|
|
|
|
static SLJIT_INLINE void free_stack(compiler_common *common, int size)
|
|
{
|
|
DEFINE_COMPILER;
|
|
|
|
SLJIT_ASSERT(size > 0);
|
|
OP2(SLJIT_SUB, STACK_TOP, 0, STACK_TOP, 0, SLJIT_IMM, size * sizeof(sljit_sw));
|
|
}
|
|
|
|
static sljit_uw * allocate_read_only_data(compiler_common *common, sljit_uw size)
|
|
{
|
|
DEFINE_COMPILER;
|
|
sljit_uw *result;
|
|
|
|
if (SLJIT_UNLIKELY(sljit_get_compiler_error(compiler)))
|
|
return NULL;
|
|
|
|
result = (sljit_uw *)SLJIT_MALLOC(size + sizeof(sljit_uw), compiler->allocator_data);
|
|
if (SLJIT_UNLIKELY(result == NULL))
|
|
{
|
|
sljit_set_compiler_memory_error(compiler);
|
|
return NULL;
|
|
}
|
|
|
|
*(void**)result = common->read_only_data_head;
|
|
common->read_only_data_head = (void *)result;
|
|
return result + 1;
|
|
}
|
|
|
|
static SLJIT_INLINE void reset_ovector(compiler_common *common, int length)
|
|
{
|
|
DEFINE_COMPILER;
|
|
struct sljit_label *loop;
|
|
sljit_s32 i;
|
|
|
|
/* At this point we can freely use all temporary registers. */
|
|
SLJIT_ASSERT(length > 1);
|
|
/* TMP1 returns with begin - 1. */
|
|
OP2(SLJIT_SUB, SLJIT_R0, 0, SLJIT_MEM1(SLJIT_S0), SLJIT_OFFSETOF(jit_arguments, begin), SLJIT_IMM, IN_UCHARS(1));
|
|
if (length < 8)
|
|
{
|
|
for (i = 1; i < length; i++)
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), OVECTOR(i), SLJIT_R0, 0);
|
|
}
|
|
else
|
|
{
|
|
GET_LOCAL_BASE(SLJIT_R1, 0, OVECTOR_START);
|
|
OP1(SLJIT_MOV, SLJIT_R2, 0, SLJIT_IMM, length - 1);
|
|
loop = LABEL();
|
|
OP1(SLJIT_MOVU, SLJIT_MEM1(SLJIT_R1), sizeof(sljit_sw), SLJIT_R0, 0);
|
|
OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_R2, 0, SLJIT_R2, 0, SLJIT_IMM, 1);
|
|
JUMPTO(SLJIT_NOT_ZERO, loop);
|
|
}
|
|
}
|
|
|
|
static SLJIT_INLINE void reset_fast_fail(compiler_common *common)
|
|
{
|
|
DEFINE_COMPILER;
|
|
sljit_s32 i;
|
|
|
|
SLJIT_ASSERT(common->fast_fail_start_ptr < common->fast_fail_end_ptr);
|
|
|
|
OP2(SLJIT_SUB, TMP1, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1));
|
|
for (i = common->fast_fail_start_ptr; i < common->fast_fail_end_ptr; i += sizeof(sljit_sw))
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), i, TMP1, 0);
|
|
}
|
|
|
|
static SLJIT_INLINE void do_reset_match(compiler_common *common, int length)
|
|
{
|
|
DEFINE_COMPILER;
|
|
struct sljit_label *loop;
|
|
int i;
|
|
|
|
SLJIT_ASSERT(length > 1);
|
|
/* OVECTOR(1) contains the "string begin - 1" constant. */
|
|
if (length > 2)
|
|
OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_SP), OVECTOR(1));
|
|
if (length < 8)
|
|
{
|
|
for (i = 2; i < length; i++)
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), OVECTOR(i), TMP1, 0);
|
|
}
|
|
else
|
|
{
|
|
GET_LOCAL_BASE(TMP2, 0, OVECTOR_START + sizeof(sljit_sw));
|
|
OP1(SLJIT_MOV, STACK_TOP, 0, SLJIT_IMM, length - 2);
|
|
loop = LABEL();
|
|
OP1(SLJIT_MOVU, SLJIT_MEM1(TMP2), sizeof(sljit_sw), TMP1, 0);
|
|
OP2(SLJIT_SUB | SLJIT_SET_E, STACK_TOP, 0, STACK_TOP, 0, SLJIT_IMM, 1);
|
|
JUMPTO(SLJIT_NOT_ZERO, loop);
|
|
}
|
|
|
|
OP1(SLJIT_MOV, STACK_TOP, 0, ARGUMENTS, 0);
|
|
if (common->mark_ptr != 0)
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), common->mark_ptr, SLJIT_IMM, 0);
|
|
if (common->control_head_ptr != 0)
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), common->control_head_ptr, SLJIT_IMM, 0);
|
|
OP1(SLJIT_MOV, STACK_TOP, 0, SLJIT_MEM1(STACK_TOP), SLJIT_OFFSETOF(jit_arguments, stack));
|
|
OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_SP), common->start_ptr);
|
|
OP1(SLJIT_MOV, STACK_TOP, 0, SLJIT_MEM1(STACK_TOP), SLJIT_OFFSETOF(struct sljit_stack, base));
|
|
}
|
|
|
|
static sljit_sw SLJIT_CALL do_search_mark(sljit_sw *current, PCRE2_SPTR skip_arg)
|
|
{
|
|
while (current != NULL)
|
|
{
|
|
switch (current[-2])
|
|
{
|
|
case type_then_trap:
|
|
break;
|
|
|
|
case type_mark:
|
|
if (PRIV(strcmp)(skip_arg, (PCRE2_SPTR)current[-3]) == 0)
|
|
return current[-4];
|
|
break;
|
|
|
|
default:
|
|
SLJIT_ASSERT_STOP();
|
|
break;
|
|
}
|
|
SLJIT_ASSERT(current > (sljit_sw*)current[-1]);
|
|
current = (sljit_sw*)current[-1];
|
|
}
|
|
return -1;
|
|
}
|
|
|
|
static SLJIT_INLINE void copy_ovector(compiler_common *common, int topbracket)
|
|
{
|
|
DEFINE_COMPILER;
|
|
struct sljit_label *loop;
|
|
|
|
/* At this point we can freely use all registers. */
|
|
OP1(SLJIT_MOV, SLJIT_S2, 0, SLJIT_MEM1(SLJIT_SP), OVECTOR(1));
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), OVECTOR(1), STR_PTR, 0);
|
|
|
|
OP1(SLJIT_MOV, SLJIT_R0, 0, ARGUMENTS, 0);
|
|
OP1(SLJIT_MOV, SLJIT_S0, 0, SLJIT_MEM1(SLJIT_SP), common->start_ptr);
|
|
if (common->mark_ptr != 0)
|
|
OP1(SLJIT_MOV, SLJIT_R2, 0, SLJIT_MEM1(SLJIT_SP), common->mark_ptr);
|
|
OP1(SLJIT_MOV_U32, SLJIT_R1, 0, SLJIT_MEM1(SLJIT_R0), SLJIT_OFFSETOF(jit_arguments, oveccount));
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_R0), SLJIT_OFFSETOF(jit_arguments, startchar_ptr), SLJIT_S0, 0);
|
|
if (common->mark_ptr != 0)
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_R0), SLJIT_OFFSETOF(jit_arguments, mark_ptr), SLJIT_R2, 0);
|
|
OP2(SLJIT_ADD, SLJIT_R2, 0, SLJIT_MEM1(SLJIT_R0), SLJIT_OFFSETOF(jit_arguments, match_data),
|
|
SLJIT_IMM, SLJIT_OFFSETOF(pcre2_match_data, ovector) - sizeof(PCRE2_SIZE));
|
|
|
|
GET_LOCAL_BASE(SLJIT_S0, 0, OVECTOR_START);
|
|
OP1(SLJIT_MOV, SLJIT_R0, 0, SLJIT_MEM1(SLJIT_R0), SLJIT_OFFSETOF(jit_arguments, begin));
|
|
|
|
loop = LABEL();
|
|
OP2(SLJIT_SUB, SLJIT_S1, 0, SLJIT_MEM1(SLJIT_S0), 0, SLJIT_R0, 0);
|
|
OP2(SLJIT_ADD, SLJIT_S0, 0, SLJIT_S0, 0, SLJIT_IMM, sizeof(sljit_sw));
|
|
/* Copy the integer value to the output buffer */
|
|
#if PCRE2_CODE_UNIT_WIDTH == 16 || PCRE2_CODE_UNIT_WIDTH == 32
|
|
OP2(SLJIT_ASHR, SLJIT_S1, 0, SLJIT_S1, 0, SLJIT_IMM, UCHAR_SHIFT);
|
|
#endif
|
|
SLJIT_ASSERT(sizeof(PCRE2_SIZE) == 4 || sizeof(PCRE2_SIZE) == 8);
|
|
if (sizeof(PCRE2_SIZE) == 4)
|
|
OP1(SLJIT_MOVU_U32, SLJIT_MEM1(SLJIT_R2), sizeof(PCRE2_SIZE), SLJIT_S1, 0);
|
|
else
|
|
OP1(SLJIT_MOVU, SLJIT_MEM1(SLJIT_R2), sizeof(PCRE2_SIZE), SLJIT_S1, 0);
|
|
OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_R1, 0, SLJIT_R1, 0, SLJIT_IMM, 1);
|
|
JUMPTO(SLJIT_NOT_ZERO, loop);
|
|
|
|
/* Calculate the return value, which is the maximum ovector value. */
|
|
if (topbracket > 1)
|
|
{
|
|
GET_LOCAL_BASE(SLJIT_R0, 0, OVECTOR_START + topbracket * 2 * sizeof(sljit_sw));
|
|
OP1(SLJIT_MOV, SLJIT_R1, 0, SLJIT_IMM, topbracket + 1);
|
|
|
|
/* OVECTOR(0) is never equal to SLJIT_S2. */
|
|
loop = LABEL();
|
|
OP1(SLJIT_MOVU, SLJIT_R2, 0, SLJIT_MEM1(SLJIT_R0), -(2 * (sljit_sw)sizeof(sljit_sw)));
|
|
OP2(SLJIT_SUB, SLJIT_R1, 0, SLJIT_R1, 0, SLJIT_IMM, 1);
|
|
CMPTO(SLJIT_EQUAL, SLJIT_R2, 0, SLJIT_S2, 0, loop);
|
|
OP1(SLJIT_MOV, SLJIT_RETURN_REG, 0, SLJIT_R1, 0);
|
|
}
|
|
else
|
|
OP1(SLJIT_MOV, SLJIT_RETURN_REG, 0, SLJIT_IMM, 1);
|
|
}
|
|
|
|
static SLJIT_INLINE void return_with_partial_match(compiler_common *common, struct sljit_label *quit)
|
|
{
|
|
DEFINE_COMPILER;
|
|
sljit_s32 mov_opcode;
|
|
|
|
SLJIT_COMPILE_ASSERT(STR_END == SLJIT_S1, str_end_must_be_saved_reg2);
|
|
SLJIT_ASSERT(common->start_used_ptr != 0 && common->start_ptr != 0
|
|
&& (common->mode == PCRE2_JIT_PARTIAL_SOFT ? common->hit_start != 0 : common->hit_start == 0));
|
|
|
|
OP1(SLJIT_MOV, SLJIT_R1, 0, ARGUMENTS, 0);
|
|
OP1(SLJIT_MOV, SLJIT_R2, 0, SLJIT_MEM1(SLJIT_SP),
|
|
common->mode == PCRE2_JIT_PARTIAL_SOFT ? common->hit_start : common->start_ptr);
|
|
OP1(SLJIT_MOV, SLJIT_RETURN_REG, 0, SLJIT_IMM, PCRE2_ERROR_PARTIAL);
|
|
|
|
/* Store match begin and end. */
|
|
OP1(SLJIT_MOV, SLJIT_S0, 0, SLJIT_MEM1(SLJIT_R1), SLJIT_OFFSETOF(jit_arguments, begin));
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_R1), SLJIT_OFFSETOF(jit_arguments, startchar_ptr), SLJIT_R2, 0);
|
|
OP1(SLJIT_MOV, SLJIT_R1, 0, SLJIT_MEM1(SLJIT_R1), SLJIT_OFFSETOF(jit_arguments, match_data));
|
|
|
|
mov_opcode = (sizeof(PCRE2_SIZE) == 4) ? SLJIT_MOV_U32 : SLJIT_MOV;
|
|
|
|
OP2(SLJIT_SUB, SLJIT_R2, 0, SLJIT_R2, 0, SLJIT_S0, 0);
|
|
#if PCRE2_CODE_UNIT_WIDTH == 16 || PCRE2_CODE_UNIT_WIDTH == 32
|
|
OP2(SLJIT_ASHR, SLJIT_R2, 0, SLJIT_R2, 0, SLJIT_IMM, UCHAR_SHIFT);
|
|
#endif
|
|
OP1(mov_opcode, SLJIT_MEM1(SLJIT_R1), SLJIT_OFFSETOF(pcre2_match_data, ovector), SLJIT_R2, 0);
|
|
|
|
OP2(SLJIT_SUB, STR_END, 0, STR_END, 0, SLJIT_S0, 0);
|
|
#if PCRE2_CODE_UNIT_WIDTH == 16 || PCRE2_CODE_UNIT_WIDTH == 32
|
|
OP2(SLJIT_ASHR, STR_END, 0, STR_END, 0, SLJIT_IMM, UCHAR_SHIFT);
|
|
#endif
|
|
OP1(mov_opcode, SLJIT_MEM1(SLJIT_R1), SLJIT_OFFSETOF(pcre2_match_data, ovector) + sizeof(PCRE2_SIZE), STR_END, 0);
|
|
|
|
JUMPTO(SLJIT_JUMP, quit);
|
|
}
|
|
|
|
static SLJIT_INLINE void check_start_used_ptr(compiler_common *common)
|
|
{
|
|
/* May destroy TMP1. */
|
|
DEFINE_COMPILER;
|
|
struct sljit_jump *jump;
|
|
|
|
if (common->mode == PCRE2_JIT_PARTIAL_SOFT)
|
|
{
|
|
/* The value of -1 must be kept for start_used_ptr! */
|
|
OP2(SLJIT_ADD, TMP1, 0, SLJIT_MEM1(SLJIT_SP), common->start_used_ptr, SLJIT_IMM, 1);
|
|
/* Jumps if start_used_ptr < STR_PTR, or start_used_ptr == -1. Although overwriting
|
|
is not necessary if start_used_ptr == STR_PTR, it does not hurt as well. */
|
|
jump = CMP(SLJIT_LESS_EQUAL, TMP1, 0, STR_PTR, 0);
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), common->start_used_ptr, STR_PTR, 0);
|
|
JUMPHERE(jump);
|
|
}
|
|
else if (common->mode == PCRE2_JIT_PARTIAL_HARD)
|
|
{
|
|
jump = CMP(SLJIT_LESS_EQUAL, SLJIT_MEM1(SLJIT_SP), common->start_used_ptr, STR_PTR, 0);
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), common->start_used_ptr, STR_PTR, 0);
|
|
JUMPHERE(jump);
|
|
}
|
|
}
|
|
|
|
static SLJIT_INLINE BOOL char_has_othercase(compiler_common *common, PCRE2_SPTR cc)
|
|
{
|
|
/* Detects if the character has an othercase. */
|
|
unsigned int c;
|
|
|
|
#ifdef SUPPORT_UNICODE
|
|
if (common->utf)
|
|
{
|
|
GETCHAR(c, cc);
|
|
if (c > 127)
|
|
{
|
|
return c != UCD_OTHERCASE(c);
|
|
}
|
|
#if PCRE2_CODE_UNIT_WIDTH != 8
|
|
return common->fcc[c] != c;
|
|
#endif
|
|
}
|
|
else
|
|
#endif
|
|
c = *cc;
|
|
return MAX_255(c) ? common->fcc[c] != c : FALSE;
|
|
}
|
|
|
|
static SLJIT_INLINE unsigned int char_othercase(compiler_common *common, unsigned int c)
|
|
{
|
|
/* Returns with the othercase. */
|
|
#ifdef SUPPORT_UNICODE
|
|
if (common->utf && c > 127)
|
|
{
|
|
return UCD_OTHERCASE(c);
|
|
}
|
|
#endif
|
|
return TABLE_GET(c, common->fcc, c);
|
|
}
|
|
|
|
static unsigned int char_get_othercase_bit(compiler_common *common, PCRE2_SPTR cc)
|
|
{
|
|
/* Detects if the character and its othercase has only 1 bit difference. */
|
|
unsigned int c, oc, bit;
|
|
#if defined SUPPORT_UNICODE && PCRE2_CODE_UNIT_WIDTH == 8
|
|
int n;
|
|
#endif
|
|
|
|
#ifdef SUPPORT_UNICODE
|
|
if (common->utf)
|
|
{
|
|
GETCHAR(c, cc);
|
|
if (c <= 127)
|
|
oc = common->fcc[c];
|
|
else
|
|
{
|
|
oc = UCD_OTHERCASE(c);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
c = *cc;
|
|
oc = TABLE_GET(c, common->fcc, c);
|
|
}
|
|
#else
|
|
c = *cc;
|
|
oc = TABLE_GET(c, common->fcc, c);
|
|
#endif
|
|
|
|
SLJIT_ASSERT(c != oc);
|
|
|
|
bit = c ^ oc;
|
|
/* Optimized for English alphabet. */
|
|
if (c <= 127 && bit == 0x20)
|
|
return (0 << 8) | 0x20;
|
|
|
|
/* Since c != oc, they must have at least 1 bit difference. */
|
|
if (!is_powerof2(bit))
|
|
return 0;
|
|
|
|
#if PCRE2_CODE_UNIT_WIDTH == 8
|
|
|
|
#ifdef SUPPORT_UNICODE
|
|
if (common->utf && c > 127)
|
|
{
|
|
n = GET_EXTRALEN(*cc);
|
|
while ((bit & 0x3f) == 0)
|
|
{
|
|
n--;
|
|
bit >>= 6;
|
|
}
|
|
return (n << 8) | bit;
|
|
}
|
|
#endif /* SUPPORT_UNICODE */
|
|
return (0 << 8) | bit;
|
|
|
|
#elif PCRE2_CODE_UNIT_WIDTH == 16 || PCRE2_CODE_UNIT_WIDTH == 32
|
|
|
|
#ifdef SUPPORT_UNICODE
|
|
if (common->utf && c > 65535)
|
|
{
|
|
if (bit >= (1 << 10))
|
|
bit >>= 10;
|
|
else
|
|
return (bit < 256) ? ((2 << 8) | bit) : ((3 << 8) | (bit >> 8));
|
|
}
|
|
#endif /* SUPPORT_UNICODE */
|
|
return (bit < 256) ? ((0 << 8) | bit) : ((1 << 8) | (bit >> 8));
|
|
|
|
#endif /* PCRE2_CODE_UNIT_WIDTH == [8|16|32] */
|
|
}
|
|
|
|
static void check_partial(compiler_common *common, BOOL force)
|
|
{
|
|
/* Checks whether a partial matching is occurred. Does not modify registers. */
|
|
DEFINE_COMPILER;
|
|
struct sljit_jump *jump = NULL;
|
|
|
|
SLJIT_ASSERT(!force || common->mode != PCRE2_JIT_COMPLETE);
|
|
|
|
if (common->mode == PCRE2_JIT_COMPLETE)
|
|
return;
|
|
|
|
if (!force)
|
|
jump = CMP(SLJIT_GREATER_EQUAL, SLJIT_MEM1(SLJIT_SP), common->start_used_ptr, STR_PTR, 0);
|
|
else if (common->mode == PCRE2_JIT_PARTIAL_SOFT)
|
|
jump = CMP(SLJIT_EQUAL, SLJIT_MEM1(SLJIT_SP), common->start_used_ptr, SLJIT_IMM, -1);
|
|
|
|
if (common->mode == PCRE2_JIT_PARTIAL_SOFT)
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), common->hit_start, SLJIT_IMM, 0);
|
|
else
|
|
{
|
|
if (common->partialmatchlabel != NULL)
|
|
JUMPTO(SLJIT_JUMP, common->partialmatchlabel);
|
|
else
|
|
add_jump(compiler, &common->partialmatch, JUMP(SLJIT_JUMP));
|
|
}
|
|
|
|
if (jump != NULL)
|
|
JUMPHERE(jump);
|
|
}
|
|
|
|
static void check_str_end(compiler_common *common, jump_list **end_reached)
|
|
{
|
|
/* Does not affect registers. Usually used in a tight spot. */
|
|
DEFINE_COMPILER;
|
|
struct sljit_jump *jump;
|
|
|
|
if (common->mode == PCRE2_JIT_COMPLETE)
|
|
{
|
|
add_jump(compiler, end_reached, CMP(SLJIT_GREATER_EQUAL, STR_PTR, 0, STR_END, 0));
|
|
return;
|
|
}
|
|
|
|
jump = CMP(SLJIT_LESS, STR_PTR, 0, STR_END, 0);
|
|
if (common->mode == PCRE2_JIT_PARTIAL_SOFT)
|
|
{
|
|
add_jump(compiler, end_reached, CMP(SLJIT_GREATER_EQUAL, SLJIT_MEM1(SLJIT_SP), common->start_used_ptr, STR_PTR, 0));
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), common->hit_start, SLJIT_IMM, 0);
|
|
add_jump(compiler, end_reached, JUMP(SLJIT_JUMP));
|
|
}
|
|
else
|
|
{
|
|
add_jump(compiler, end_reached, CMP(SLJIT_GREATER_EQUAL, SLJIT_MEM1(SLJIT_SP), common->start_used_ptr, STR_PTR, 0));
|
|
if (common->partialmatchlabel != NULL)
|
|
JUMPTO(SLJIT_JUMP, common->partialmatchlabel);
|
|
else
|
|
add_jump(compiler, &common->partialmatch, JUMP(SLJIT_JUMP));
|
|
}
|
|
JUMPHERE(jump);
|
|
}
|
|
|
|
static void detect_partial_match(compiler_common *common, jump_list **backtracks)
|
|
{
|
|
DEFINE_COMPILER;
|
|
struct sljit_jump *jump;
|
|
|
|
if (common->mode == PCRE2_JIT_COMPLETE)
|
|
{
|
|
add_jump(compiler, backtracks, CMP(SLJIT_GREATER_EQUAL, STR_PTR, 0, STR_END, 0));
|
|
return;
|
|
}
|
|
|
|
/* Partial matching mode. */
|
|
jump = CMP(SLJIT_LESS, STR_PTR, 0, STR_END, 0);
|
|
add_jump(compiler, backtracks, CMP(SLJIT_GREATER_EQUAL, SLJIT_MEM1(SLJIT_SP), common->start_used_ptr, STR_PTR, 0));
|
|
if (common->mode == PCRE2_JIT_PARTIAL_SOFT)
|
|
{
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), common->hit_start, SLJIT_IMM, 0);
|
|
add_jump(compiler, backtracks, JUMP(SLJIT_JUMP));
|
|
}
|
|
else
|
|
{
|
|
if (common->partialmatchlabel != NULL)
|
|
JUMPTO(SLJIT_JUMP, common->partialmatchlabel);
|
|
else
|
|
add_jump(compiler, &common->partialmatch, JUMP(SLJIT_JUMP));
|
|
}
|
|
JUMPHERE(jump);
|
|
}
|
|
|
|
static void peek_char(compiler_common *common, sljit_u32 max)
|
|
{
|
|
/* Reads the character into TMP1, keeps STR_PTR.
|
|
Does not check STR_END. TMP2 Destroyed. */
|
|
DEFINE_COMPILER;
|
|
#if defined SUPPORT_UNICODE && PCRE2_CODE_UNIT_WIDTH != 32
|
|
struct sljit_jump *jump;
|
|
#endif
|
|
|
|
SLJIT_UNUSED_ARG(max);
|
|
|
|
OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), 0);
|
|
#if defined SUPPORT_UNICODE && PCRE2_CODE_UNIT_WIDTH == 8
|
|
if (common->utf)
|
|
{
|
|
if (max < 128) return;
|
|
|
|
jump = CMP(SLJIT_LESS, TMP1, 0, SLJIT_IMM, 0xc0);
|
|
OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1));
|
|
add_jump(compiler, &common->utfreadchar, JUMP(SLJIT_FAST_CALL));
|
|
OP2(SLJIT_SUB, STR_PTR, 0, STR_PTR, 0, TMP2, 0);
|
|
JUMPHERE(jump);
|
|
}
|
|
#endif /* SUPPORT_UNICODE && PCRE2_CODE_UNIT_WIDTH != 32 */
|
|
|
|
#if defined SUPPORT_UNICODE && PCRE2_CODE_UNIT_WIDTH == 16
|
|
if (common->utf)
|
|
{
|
|
if (max < 0xd800) return;
|
|
|
|
OP2(SLJIT_SUB, TMP2, 0, TMP1, 0, SLJIT_IMM, 0xd800);
|
|
jump = CMP(SLJIT_GREATER, TMP2, 0, SLJIT_IMM, 0xdc00 - 0xd800 - 1);
|
|
/* TMP2 contains the high surrogate. */
|
|
OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(0));
|
|
OP2(SLJIT_ADD, TMP2, 0, TMP2, 0, SLJIT_IMM, 0x40);
|
|
OP2(SLJIT_SHL, TMP2, 0, TMP2, 0, SLJIT_IMM, 10);
|
|
OP2(SLJIT_AND, TMP1, 0, TMP1, 0, SLJIT_IMM, 0x3ff);
|
|
OP2(SLJIT_OR, TMP1, 0, TMP1, 0, TMP2, 0);
|
|
JUMPHERE(jump);
|
|
}
|
|
#endif
|
|
}
|
|
|
|
#if defined SUPPORT_UNICODE && PCRE2_CODE_UNIT_WIDTH == 8
|
|
|
|
static BOOL is_char7_bitset(const sljit_u8 *bitset, BOOL nclass)
|
|
{
|
|
/* Tells whether the character codes below 128 are enough
|
|
to determine a match. */
|
|
const sljit_u8 value = nclass ? 0xff : 0;
|
|
const sljit_u8 *end = bitset + 32;
|
|
|
|
bitset += 16;
|
|
do
|
|
{
|
|
if (*bitset++ != value)
|
|
return FALSE;
|
|
}
|
|
while (bitset < end);
|
|
return TRUE;
|
|
}
|
|
|
|
static void read_char7_type(compiler_common *common, BOOL full_read)
|
|
{
|
|
/* Reads the precise character type of a character into TMP1, if the character
|
|
is less than 128. Otherwise it returns with zero. Does not check STR_END. The
|
|
full_read argument tells whether characters above max are accepted or not. */
|
|
DEFINE_COMPILER;
|
|
struct sljit_jump *jump;
|
|
|
|
SLJIT_ASSERT(common->utf);
|
|
|
|
OP1(MOV_UCHAR, TMP2, 0, SLJIT_MEM1(STR_PTR), 0);
|
|
OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1));
|
|
|
|
OP1(SLJIT_MOV_U8, TMP1, 0, SLJIT_MEM1(TMP2), common->ctypes);
|
|
|
|
if (full_read)
|
|
{
|
|
jump = CMP(SLJIT_LESS, TMP2, 0, SLJIT_IMM, 0xc0);
|
|
OP1(SLJIT_MOV_U8, TMP2, 0, SLJIT_MEM1(TMP2), (sljit_sw)PRIV(utf8_table4) - 0xc0);
|
|
OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, TMP2, 0);
|
|
JUMPHERE(jump);
|
|
}
|
|
}
|
|
|
|
#endif /* SUPPORT_UNICODE && PCRE2_CODE_UNIT_WIDTH == 8 */
|
|
|
|
static void read_char_range(compiler_common *common, sljit_u32 min, sljit_u32 max, BOOL update_str_ptr)
|
|
{
|
|
/* Reads the precise value of a character into TMP1, if the character is
|
|
between min and max (c >= min && c <= max). Otherwise it returns with a value
|
|
outside the range. Does not check STR_END. */
|
|
DEFINE_COMPILER;
|
|
#if defined SUPPORT_UNICODE && PCRE2_CODE_UNIT_WIDTH != 32
|
|
struct sljit_jump *jump;
|
|
#endif
|
|
#if defined SUPPORT_UNICODE && PCRE2_CODE_UNIT_WIDTH == 8
|
|
struct sljit_jump *jump2;
|
|
#endif
|
|
|
|
SLJIT_UNUSED_ARG(update_str_ptr);
|
|
SLJIT_UNUSED_ARG(min);
|
|
SLJIT_UNUSED_ARG(max);
|
|
SLJIT_ASSERT(min <= max);
|
|
|
|
OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(0));
|
|
OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1));
|
|
|
|
#if defined SUPPORT_UNICODE && PCRE2_CODE_UNIT_WIDTH == 8
|
|
if (common->utf)
|
|
{
|
|
if (max < 128 && !update_str_ptr) return;
|
|
|
|
jump = CMP(SLJIT_LESS, TMP1, 0, SLJIT_IMM, 0xc0);
|
|
if (min >= 0x10000)
|
|
{
|
|
OP2(SLJIT_SUB, TMP2, 0, TMP1, 0, SLJIT_IMM, 0xf0);
|
|
if (update_str_ptr)
|
|
OP1(SLJIT_MOV_U8, RETURN_ADDR, 0, SLJIT_MEM1(TMP1), (sljit_sw)PRIV(utf8_table4) - 0xc0);
|
|
OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(0));
|
|
jump2 = CMP(SLJIT_GREATER, TMP2, 0, SLJIT_IMM, 0x7);
|
|
OP2(SLJIT_SHL, TMP2, 0, TMP2, 0, SLJIT_IMM, 6);
|
|
OP2(SLJIT_AND, TMP1, 0, TMP1, 0, SLJIT_IMM, 0x3f);
|
|
OP2(SLJIT_OR, TMP1, 0, TMP1, 0, TMP2, 0);
|
|
OP1(MOV_UCHAR, TMP2, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(1));
|
|
OP2(SLJIT_SHL, TMP1, 0, TMP1, 0, SLJIT_IMM, 6);
|
|
OP2(SLJIT_AND, TMP2, 0, TMP2, 0, SLJIT_IMM, 0x3f);
|
|
OP2(SLJIT_OR, TMP1, 0, TMP1, 0, TMP2, 0);
|
|
OP1(MOV_UCHAR, TMP2, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(2));
|
|
if (!update_str_ptr)
|
|
OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(3));
|
|
OP2(SLJIT_SHL, TMP1, 0, TMP1, 0, SLJIT_IMM, 6);
|
|
OP2(SLJIT_AND, TMP2, 0, TMP2, 0, SLJIT_IMM, 0x3f);
|
|
OP2(SLJIT_OR, TMP1, 0, TMP1, 0, TMP2, 0);
|
|
JUMPHERE(jump2);
|
|
if (update_str_ptr)
|
|
OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, RETURN_ADDR, 0);
|
|
}
|
|
else if (min >= 0x800 && max <= 0xffff)
|
|
{
|
|
OP2(SLJIT_SUB, TMP2, 0, TMP1, 0, SLJIT_IMM, 0xe0);
|
|
if (update_str_ptr)
|
|
OP1(SLJIT_MOV_U8, RETURN_ADDR, 0, SLJIT_MEM1(TMP1), (sljit_sw)PRIV(utf8_table4) - 0xc0);
|
|
OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(0));
|
|
jump2 = CMP(SLJIT_GREATER, TMP2, 0, SLJIT_IMM, 0xf);
|
|
OP2(SLJIT_SHL, TMP2, 0, TMP2, 0, SLJIT_IMM, 6);
|
|
OP2(SLJIT_AND, TMP1, 0, TMP1, 0, SLJIT_IMM, 0x3f);
|
|
OP2(SLJIT_OR, TMP1, 0, TMP1, 0, TMP2, 0);
|
|
OP1(MOV_UCHAR, TMP2, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(1));
|
|
if (!update_str_ptr)
|
|
OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(2));
|
|
OP2(SLJIT_SHL, TMP1, 0, TMP1, 0, SLJIT_IMM, 6);
|
|
OP2(SLJIT_AND, TMP2, 0, TMP2, 0, SLJIT_IMM, 0x3f);
|
|
OP2(SLJIT_OR, TMP1, 0, TMP1, 0, TMP2, 0);
|
|
JUMPHERE(jump2);
|
|
if (update_str_ptr)
|
|
OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, RETURN_ADDR, 0);
|
|
}
|
|
else if (max >= 0x800)
|
|
add_jump(compiler, (max < 0x10000) ? &common->utfreadchar16 : &common->utfreadchar, JUMP(SLJIT_FAST_CALL));
|
|
else if (max < 128)
|
|
{
|
|
OP1(SLJIT_MOV_U8, TMP2, 0, SLJIT_MEM1(TMP1), (sljit_sw)PRIV(utf8_table4) - 0xc0);
|
|
OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, TMP2, 0);
|
|
}
|
|
else
|
|
{
|
|
OP1(MOV_UCHAR, TMP2, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(0));
|
|
if (!update_str_ptr)
|
|
OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1));
|
|
else
|
|
OP1(SLJIT_MOV_U8, RETURN_ADDR, 0, SLJIT_MEM1(TMP1), (sljit_sw)PRIV(utf8_table4) - 0xc0);
|
|
OP2(SLJIT_AND, TMP1, 0, TMP1, 0, SLJIT_IMM, 0x3f);
|
|
OP2(SLJIT_SHL, TMP1, 0, TMP1, 0, SLJIT_IMM, 6);
|
|
OP2(SLJIT_AND, TMP2, 0, TMP2, 0, SLJIT_IMM, 0x3f);
|
|
OP2(SLJIT_OR, TMP1, 0, TMP1, 0, TMP2, 0);
|
|
if (update_str_ptr)
|
|
OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, RETURN_ADDR, 0);
|
|
}
|
|
JUMPHERE(jump);
|
|
}
|
|
#endif
|
|
|
|
#if defined SUPPORT_UNICODE && PCRE2_CODE_UNIT_WIDTH == 16
|
|
if (common->utf)
|
|
{
|
|
if (max >= 0x10000)
|
|
{
|
|
OP2(SLJIT_SUB, TMP2, 0, TMP1, 0, SLJIT_IMM, 0xd800);
|
|
jump = CMP(SLJIT_GREATER, TMP2, 0, SLJIT_IMM, 0xdc00 - 0xd800 - 1);
|
|
/* TMP2 contains the high surrogate. */
|
|
OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(0));
|
|
OP2(SLJIT_ADD, TMP2, 0, TMP2, 0, SLJIT_IMM, 0x40);
|
|
OP2(SLJIT_SHL, TMP2, 0, TMP2, 0, SLJIT_IMM, 10);
|
|
OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1));
|
|
OP2(SLJIT_AND, TMP1, 0, TMP1, 0, SLJIT_IMM, 0x3ff);
|
|
OP2(SLJIT_OR, TMP1, 0, TMP1, 0, TMP2, 0);
|
|
JUMPHERE(jump);
|
|
return;
|
|
}
|
|
|
|
if (max < 0xd800 && !update_str_ptr) return;
|
|
|
|
/* Skip low surrogate if necessary. */
|
|
OP2(SLJIT_SUB, TMP2, 0, TMP1, 0, SLJIT_IMM, 0xd800);
|
|
jump = CMP(SLJIT_GREATER, TMP2, 0, SLJIT_IMM, 0xdc00 - 0xd800 - 1);
|
|
if (update_str_ptr)
|
|
OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1));
|
|
if (max >= 0xd800)
|
|
OP1(SLJIT_MOV, TMP1, 0, SLJIT_IMM, 0x10000);
|
|
JUMPHERE(jump);
|
|
}
|
|
#endif
|
|
}
|
|
|
|
static SLJIT_INLINE void read_char(compiler_common *common)
|
|
{
|
|
read_char_range(common, 0, READ_CHAR_MAX, TRUE);
|
|
}
|
|
|
|
static void read_char8_type(compiler_common *common, BOOL update_str_ptr)
|
|
{
|
|
/* Reads the character type into TMP1, updates STR_PTR. Does not check STR_END. */
|
|
DEFINE_COMPILER;
|
|
#if defined SUPPORT_UNICODE || PCRE2_CODE_UNIT_WIDTH != 8
|
|
struct sljit_jump *jump;
|
|
#endif
|
|
#if defined SUPPORT_UNICODE && PCRE2_CODE_UNIT_WIDTH == 8
|
|
struct sljit_jump *jump2;
|
|
#endif
|
|
|
|
SLJIT_UNUSED_ARG(update_str_ptr);
|
|
|
|
OP1(MOV_UCHAR, TMP2, 0, SLJIT_MEM1(STR_PTR), 0);
|
|
OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1));
|
|
|
|
#if defined SUPPORT_UNICODE && PCRE2_CODE_UNIT_WIDTH == 8
|
|
if (common->utf)
|
|
{
|
|
/* This can be an extra read in some situations, but hopefully
|
|
it is needed in most cases. */
|
|
OP1(SLJIT_MOV_U8, TMP1, 0, SLJIT_MEM1(TMP2), common->ctypes);
|
|
jump = CMP(SLJIT_LESS, TMP2, 0, SLJIT_IMM, 0xc0);
|
|
if (!update_str_ptr)
|
|
{
|
|
OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(0));
|
|
OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1));
|
|
OP2(SLJIT_AND, TMP2, 0, TMP2, 0, SLJIT_IMM, 0x3f);
|
|
OP2(SLJIT_SHL, TMP2, 0, TMP2, 0, SLJIT_IMM, 6);
|
|
OP2(SLJIT_AND, TMP1, 0, TMP1, 0, SLJIT_IMM, 0x3f);
|
|
OP2(SLJIT_OR, TMP2, 0, TMP2, 0, TMP1, 0);
|
|
OP1(SLJIT_MOV, TMP1, 0, SLJIT_IMM, 0);
|
|
jump2 = CMP(SLJIT_GREATER, TMP2, 0, SLJIT_IMM, 255);
|
|
OP1(SLJIT_MOV_U8, TMP1, 0, SLJIT_MEM1(TMP2), common->ctypes);
|
|
JUMPHERE(jump2);
|
|
}
|
|
else
|
|
add_jump(compiler, &common->utfreadtype8, JUMP(SLJIT_FAST_CALL));
|
|
JUMPHERE(jump);
|
|
return;
|
|
}
|
|
#endif /* SUPPORT_UNICODE && PCRE2_CODE_UNIT_WIDTH == 8 */
|
|
|
|
#if PCRE2_CODE_UNIT_WIDTH != 8
|
|
/* The ctypes array contains only 256 values. */
|
|
OP1(SLJIT_MOV, TMP1, 0, SLJIT_IMM, 0);
|
|
jump = CMP(SLJIT_GREATER, TMP2, 0, SLJIT_IMM, 255);
|
|
#endif
|
|
OP1(SLJIT_MOV_U8, TMP1, 0, SLJIT_MEM1(TMP2), common->ctypes);
|
|
#if PCRE2_CODE_UNIT_WIDTH != 8
|
|
JUMPHERE(jump);
|
|
#endif
|
|
|
|
#if defined SUPPORT_UNICODE && PCRE2_CODE_UNIT_WIDTH == 16
|
|
if (common->utf && update_str_ptr)
|
|
{
|
|
/* Skip low surrogate if necessary. */
|
|
OP2(SLJIT_SUB, TMP2, 0, TMP2, 0, SLJIT_IMM, 0xd800);
|
|
jump = CMP(SLJIT_GREATER, TMP2, 0, SLJIT_IMM, 0xdc00 - 0xd800 - 1);
|
|
OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1));
|
|
JUMPHERE(jump);
|
|
}
|
|
#endif /* SUPPORT_UNICODE && PCRE2_CODE_UNIT_WIDTH == 16 */
|
|
}
|
|
|
|
static void skip_char_back(compiler_common *common)
|
|
{
|
|
/* Goes one character back. Affects STR_PTR and TMP1. Does not check begin. */
|
|
DEFINE_COMPILER;
|
|
#if defined SUPPORT_UNICODE && PCRE2_CODE_UNIT_WIDTH != 32
|
|
#if PCRE2_CODE_UNIT_WIDTH == 8
|
|
struct sljit_label *label;
|
|
|
|
if (common->utf)
|
|
{
|
|
label = LABEL();
|
|
OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), -IN_UCHARS(1));
|
|
OP2(SLJIT_SUB, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1));
|
|
OP2(SLJIT_AND, TMP1, 0, TMP1, 0, SLJIT_IMM, 0xc0);
|
|
CMPTO(SLJIT_EQUAL, TMP1, 0, SLJIT_IMM, 0x80, label);
|
|
return;
|
|
}
|
|
#elif PCRE2_CODE_UNIT_WIDTH == 16
|
|
if (common->utf)
|
|
{
|
|
OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), -IN_UCHARS(1));
|
|
OP2(SLJIT_SUB, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1));
|
|
/* Skip low surrogate if necessary. */
|
|
OP2(SLJIT_AND, TMP1, 0, TMP1, 0, SLJIT_IMM, 0xfc00);
|
|
OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, 0xdc00);
|
|
OP_FLAGS(SLJIT_MOV, TMP1, 0, SLJIT_UNUSED, 0, SLJIT_EQUAL);
|
|
OP2(SLJIT_SHL, TMP1, 0, TMP1, 0, SLJIT_IMM, 1);
|
|
OP2(SLJIT_SUB, STR_PTR, 0, STR_PTR, 0, TMP1, 0);
|
|
return;
|
|
}
|
|
#endif /* PCRE2_CODE_UNIT_WIDTH == [8|16] */
|
|
#endif /* SUPPORT_UNICODE && PCRE2_CODE_UNIT_WIDTH != 32 */
|
|
OP2(SLJIT_SUB, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1));
|
|
}
|
|
|
|
static void check_newlinechar(compiler_common *common, int nltype, jump_list **backtracks, BOOL jumpifmatch)
|
|
{
|
|
/* Character comes in TMP1. Checks if it is a newline. TMP2 may be destroyed. */
|
|
DEFINE_COMPILER;
|
|
struct sljit_jump *jump;
|
|
|
|
if (nltype == NLTYPE_ANY)
|
|
{
|
|
add_jump(compiler, &common->anynewline, JUMP(SLJIT_FAST_CALL));
|
|
add_jump(compiler, backtracks, JUMP(jumpifmatch ? SLJIT_NOT_ZERO : SLJIT_ZERO));
|
|
}
|
|
else if (nltype == NLTYPE_ANYCRLF)
|
|
{
|
|
if (jumpifmatch)
|
|
{
|
|
add_jump(compiler, backtracks, CMP(SLJIT_EQUAL, TMP1, 0, SLJIT_IMM, CHAR_CR));
|
|
add_jump(compiler, backtracks, CMP(SLJIT_EQUAL, TMP1, 0, SLJIT_IMM, CHAR_NL));
|
|
}
|
|
else
|
|
{
|
|
jump = CMP(SLJIT_EQUAL, TMP1, 0, SLJIT_IMM, CHAR_CR);
|
|
add_jump(compiler, backtracks, CMP(SLJIT_NOT_EQUAL, TMP1, 0, SLJIT_IMM, CHAR_NL));
|
|
JUMPHERE(jump);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
SLJIT_ASSERT(nltype == NLTYPE_FIXED && common->newline < 256);
|
|
add_jump(compiler, backtracks, CMP(jumpifmatch ? SLJIT_EQUAL : SLJIT_NOT_EQUAL, TMP1, 0, SLJIT_IMM, common->newline));
|
|
}
|
|
}
|
|
|
|
#ifdef SUPPORT_UNICODE
|
|
|
|
#if PCRE2_CODE_UNIT_WIDTH == 8
|
|
static void do_utfreadchar(compiler_common *common)
|
|
{
|
|
/* Fast decoding a UTF-8 character. TMP1 contains the first byte
|
|
of the character (>= 0xc0). Return char value in TMP1, length in TMP2. */
|
|
DEFINE_COMPILER;
|
|
struct sljit_jump *jump;
|
|
|
|
sljit_emit_fast_enter(compiler, RETURN_ADDR, 0);
|
|
OP1(MOV_UCHAR, TMP2, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(0));
|
|
OP2(SLJIT_AND, TMP1, 0, TMP1, 0, SLJIT_IMM, 0x3f);
|
|
OP2(SLJIT_SHL, TMP1, 0, TMP1, 0, SLJIT_IMM, 6);
|
|
OP2(SLJIT_AND, TMP2, 0, TMP2, 0, SLJIT_IMM, 0x3f);
|
|
OP2(SLJIT_OR, TMP1, 0, TMP1, 0, TMP2, 0);
|
|
|
|
/* Searching for the first zero. */
|
|
OP2(SLJIT_AND | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, 0x800);
|
|
jump = JUMP(SLJIT_NOT_ZERO);
|
|
/* Two byte sequence. */
|
|
OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1));
|
|
OP1(SLJIT_MOV, TMP2, 0, SLJIT_IMM, IN_UCHARS(2));
|
|
sljit_emit_fast_return(compiler, RETURN_ADDR, 0);
|
|
|
|
JUMPHERE(jump);
|
|
OP1(MOV_UCHAR, TMP2, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(1));
|
|
OP2(SLJIT_XOR, TMP1, 0, TMP1, 0, SLJIT_IMM, 0x800);
|
|
OP2(SLJIT_SHL, TMP1, 0, TMP1, 0, SLJIT_IMM, 6);
|
|
OP2(SLJIT_AND, TMP2, 0, TMP2, 0, SLJIT_IMM, 0x3f);
|
|
OP2(SLJIT_OR, TMP1, 0, TMP1, 0, TMP2, 0);
|
|
|
|
OP2(SLJIT_AND | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, 0x10000);
|
|
jump = JUMP(SLJIT_NOT_ZERO);
|
|
/* Three byte sequence. */
|
|
OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(2));
|
|
OP1(SLJIT_MOV, TMP2, 0, SLJIT_IMM, IN_UCHARS(3));
|
|
sljit_emit_fast_return(compiler, RETURN_ADDR, 0);
|
|
|
|
/* Four byte sequence. */
|
|
JUMPHERE(jump);
|
|
OP1(MOV_UCHAR, TMP2, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(2));
|
|
OP2(SLJIT_XOR, TMP1, 0, TMP1, 0, SLJIT_IMM, 0x10000);
|
|
OP2(SLJIT_SHL, TMP1, 0, TMP1, 0, SLJIT_IMM, 6);
|
|
OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(3));
|
|
OP2(SLJIT_AND, TMP2, 0, TMP2, 0, SLJIT_IMM, 0x3f);
|
|
OP2(SLJIT_OR, TMP1, 0, TMP1, 0, TMP2, 0);
|
|
OP1(SLJIT_MOV, TMP2, 0, SLJIT_IMM, IN_UCHARS(4));
|
|
sljit_emit_fast_return(compiler, RETURN_ADDR, 0);
|
|
}
|
|
|
|
static void do_utfreadchar16(compiler_common *common)
|
|
{
|
|
/* Fast decoding a UTF-8 character. TMP1 contains the first byte
|
|
of the character (>= 0xc0). Return value in TMP1. */
|
|
DEFINE_COMPILER;
|
|
struct sljit_jump *jump;
|
|
|
|
sljit_emit_fast_enter(compiler, RETURN_ADDR, 0);
|
|
OP1(MOV_UCHAR, TMP2, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(0));
|
|
OP2(SLJIT_AND, TMP1, 0, TMP1, 0, SLJIT_IMM, 0x3f);
|
|
OP2(SLJIT_SHL, TMP1, 0, TMP1, 0, SLJIT_IMM, 6);
|
|
OP2(SLJIT_AND, TMP2, 0, TMP2, 0, SLJIT_IMM, 0x3f);
|
|
OP2(SLJIT_OR, TMP1, 0, TMP1, 0, TMP2, 0);
|
|
|
|
/* Searching for the first zero. */
|
|
OP2(SLJIT_AND | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, 0x800);
|
|
jump = JUMP(SLJIT_NOT_ZERO);
|
|
/* Two byte sequence. */
|
|
OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1));
|
|
sljit_emit_fast_return(compiler, RETURN_ADDR, 0);
|
|
|
|
JUMPHERE(jump);
|
|
OP2(SLJIT_AND | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, 0x400);
|
|
OP_FLAGS(SLJIT_MOV, TMP2, 0, SLJIT_UNUSED, 0, SLJIT_NOT_ZERO);
|
|
/* This code runs only in 8 bit mode. No need to shift the value. */
|
|
OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, TMP2, 0);
|
|
OP1(MOV_UCHAR, TMP2, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(1));
|
|
OP2(SLJIT_XOR, TMP1, 0, TMP1, 0, SLJIT_IMM, 0x800);
|
|
OP2(SLJIT_SHL, TMP1, 0, TMP1, 0, SLJIT_IMM, 6);
|
|
OP2(SLJIT_AND, TMP2, 0, TMP2, 0, SLJIT_IMM, 0x3f);
|
|
OP2(SLJIT_OR, TMP1, 0, TMP1, 0, TMP2, 0);
|
|
/* Three byte sequence. */
|
|
OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(2));
|
|
sljit_emit_fast_return(compiler, RETURN_ADDR, 0);
|
|
}
|
|
|
|
static void do_utfreadtype8(compiler_common *common)
|
|
{
|
|
/* Fast decoding a UTF-8 character type. TMP2 contains the first byte
|
|
of the character (>= 0xc0). Return value in TMP1. */
|
|
DEFINE_COMPILER;
|
|
struct sljit_jump *jump;
|
|
struct sljit_jump *compare;
|
|
|
|
sljit_emit_fast_enter(compiler, RETURN_ADDR, 0);
|
|
|
|
OP2(SLJIT_AND | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP2, 0, SLJIT_IMM, 0x20);
|
|
jump = JUMP(SLJIT_NOT_ZERO);
|
|
/* Two byte sequence. */
|
|
OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(0));
|
|
OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1));
|
|
OP2(SLJIT_AND, TMP2, 0, TMP2, 0, SLJIT_IMM, 0x1f);
|
|
/* The upper 5 bits are known at this point. */
|
|
compare = CMP(SLJIT_GREATER, TMP2, 0, SLJIT_IMM, 0x3);
|
|
OP2(SLJIT_SHL, TMP2, 0, TMP2, 0, SLJIT_IMM, 6);
|
|
OP2(SLJIT_AND, TMP1, 0, TMP1, 0, SLJIT_IMM, 0x3f);
|
|
OP2(SLJIT_OR, TMP2, 0, TMP2, 0, TMP1, 0);
|
|
OP1(SLJIT_MOV_U8, TMP1, 0, SLJIT_MEM1(TMP2), common->ctypes);
|
|
sljit_emit_fast_return(compiler, RETURN_ADDR, 0);
|
|
|
|
JUMPHERE(compare);
|
|
OP1(SLJIT_MOV, TMP1, 0, SLJIT_IMM, 0);
|
|
sljit_emit_fast_return(compiler, RETURN_ADDR, 0);
|
|
|
|
/* We only have types for characters less than 256. */
|
|
JUMPHERE(jump);
|
|
OP1(SLJIT_MOV_U8, TMP2, 0, SLJIT_MEM1(TMP2), (sljit_sw)PRIV(utf8_table4) - 0xc0);
|
|
OP1(SLJIT_MOV, TMP1, 0, SLJIT_IMM, 0);
|
|
OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, TMP2, 0);
|
|
sljit_emit_fast_return(compiler, RETURN_ADDR, 0);
|
|
}
|
|
|
|
#endif /* PCRE2_CODE_UNIT_WIDTH == 8 */
|
|
|
|
/* UCD_BLOCK_SIZE must be 128 (see the assert below). */
|
|
#define UCD_BLOCK_MASK 127
|
|
#define UCD_BLOCK_SHIFT 7
|
|
|
|
static void do_getucd(compiler_common *common)
|
|
{
|
|
/* Search the UCD record for the character comes in TMP1.
|
|
Returns chartype in TMP1 and UCD offset in TMP2. */
|
|
DEFINE_COMPILER;
|
|
|
|
SLJIT_ASSERT(UCD_BLOCK_SIZE == 128 && sizeof(ucd_record) == 8);
|
|
|
|
sljit_emit_fast_enter(compiler, RETURN_ADDR, 0);
|
|
OP2(SLJIT_LSHR, TMP2, 0, TMP1, 0, SLJIT_IMM, UCD_BLOCK_SHIFT);
|
|
OP1(SLJIT_MOV_U8, TMP2, 0, SLJIT_MEM1(TMP2), (sljit_sw)PRIV(ucd_stage1));
|
|
OP2(SLJIT_AND, TMP1, 0, TMP1, 0, SLJIT_IMM, UCD_BLOCK_MASK);
|
|
OP2(SLJIT_SHL, TMP2, 0, TMP2, 0, SLJIT_IMM, UCD_BLOCK_SHIFT);
|
|
OP2(SLJIT_ADD, TMP1, 0, TMP1, 0, TMP2, 0);
|
|
OP1(SLJIT_MOV, TMP2, 0, SLJIT_IMM, (sljit_sw)PRIV(ucd_stage2));
|
|
OP1(SLJIT_MOV_U16, TMP2, 0, SLJIT_MEM2(TMP2, TMP1), 1);
|
|
OP1(SLJIT_MOV, TMP1, 0, SLJIT_IMM, (sljit_sw)PRIV(ucd_records) + SLJIT_OFFSETOF(ucd_record, chartype));
|
|
OP1(SLJIT_MOV_U8, TMP1, 0, SLJIT_MEM2(TMP1, TMP2), 3);
|
|
sljit_emit_fast_return(compiler, RETURN_ADDR, 0);
|
|
}
|
|
|
|
#endif /* SUPPORT_UNICODE */
|
|
|
|
static SLJIT_INLINE struct sljit_label *mainloop_entry(compiler_common *common, BOOL hascrorlf, sljit_u32 overall_options)
|
|
{
|
|
DEFINE_COMPILER;
|
|
struct sljit_label *mainloop;
|
|
struct sljit_label *newlinelabel = NULL;
|
|
struct sljit_jump *start;
|
|
struct sljit_jump *end = NULL;
|
|
struct sljit_jump *end2 = NULL;
|
|
#if defined SUPPORT_UNICODE && PCRE2_CODE_UNIT_WIDTH != 32
|
|
struct sljit_jump *singlechar;
|
|
#endif
|
|
jump_list *newline = NULL;
|
|
BOOL newlinecheck = FALSE;
|
|
BOOL readuchar = FALSE;
|
|
|
|
if (!(hascrorlf || (overall_options & PCRE2_FIRSTLINE) != 0)
|
|
&& (common->nltype == NLTYPE_ANY || common->nltype == NLTYPE_ANYCRLF || common->newline > 255))
|
|
newlinecheck = TRUE;
|
|
|
|
SLJIT_ASSERT(common->forced_quit_label == NULL);
|
|
|
|
if ((overall_options & PCRE2_FIRSTLINE) != 0)
|
|
{
|
|
/* Search for the end of the first line. */
|
|
SLJIT_ASSERT(common->match_end_ptr != 0);
|
|
OP1(SLJIT_MOV, TMP3, 0, STR_PTR, 0);
|
|
|
|
if (common->nltype == NLTYPE_FIXED && common->newline > 255)
|
|
{
|
|
mainloop = LABEL();
|
|
OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1));
|
|
end = CMP(SLJIT_GREATER_EQUAL, STR_PTR, 0, STR_END, 0);
|
|
OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(-1));
|
|
OP1(MOV_UCHAR, TMP2, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(0));
|
|
CMPTO(SLJIT_NOT_EQUAL, TMP1, 0, SLJIT_IMM, (common->newline >> 8) & 0xff, mainloop);
|
|
CMPTO(SLJIT_NOT_EQUAL, TMP2, 0, SLJIT_IMM, common->newline & 0xff, mainloop);
|
|
JUMPHERE(end);
|
|
OP2(SLJIT_SUB, SLJIT_MEM1(SLJIT_SP), common->match_end_ptr, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1));
|
|
}
|
|
else
|
|
{
|
|
end = CMP(SLJIT_GREATER_EQUAL, STR_PTR, 0, STR_END, 0);
|
|
mainloop = LABEL();
|
|
/* Continual stores does not cause data dependency. */
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), common->match_end_ptr, STR_PTR, 0);
|
|
read_char_range(common, common->nlmin, common->nlmax, TRUE);
|
|
check_newlinechar(common, common->nltype, &newline, TRUE);
|
|
CMPTO(SLJIT_LESS, STR_PTR, 0, STR_END, 0, mainloop);
|
|
JUMPHERE(end);
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), common->match_end_ptr, STR_PTR, 0);
|
|
set_jumps(newline, LABEL());
|
|
}
|
|
|
|
OP1(SLJIT_MOV, STR_PTR, 0, TMP3, 0);
|
|
}
|
|
else if ((overall_options & PCRE2_USE_OFFSET_LIMIT) != 0)
|
|
{
|
|
/* Check whether offset limit is set and valid. */
|
|
SLJIT_ASSERT(common->match_end_ptr != 0);
|
|
|
|
OP1(SLJIT_MOV, TMP1, 0, ARGUMENTS, 0);
|
|
OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(TMP1), SLJIT_OFFSETOF(jit_arguments, offset_limit));
|
|
OP1(SLJIT_MOV, TMP2, 0, STR_END, 0);
|
|
end = CMP(SLJIT_EQUAL, TMP1, 0, SLJIT_IMM, (sljit_sw) PCRE2_UNSET);
|
|
OP1(SLJIT_MOV, TMP2, 0, ARGUMENTS, 0);
|
|
#if PCRE2_CODE_UNIT_WIDTH == 16
|
|
OP2(SLJIT_SHL, TMP1, 0, TMP1, 0, SLJIT_IMM, 1);
|
|
#elif PCRE2_CODE_UNIT_WIDTH == 32
|
|
OP2(SLJIT_SHL, TMP1, 0, TMP1, 0, SLJIT_IMM, 2);
|
|
#endif
|
|
OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(TMP2), SLJIT_OFFSETOF(jit_arguments, begin));
|
|
OP2(SLJIT_ADD, TMP2, 0, TMP2, 0, TMP1, 0);
|
|
end2 = CMP(SLJIT_LESS_EQUAL, TMP2, 0, STR_END, 0);
|
|
OP1(SLJIT_MOV, TMP2, 0, STR_END, 0);
|
|
JUMPHERE(end2);
|
|
OP1(SLJIT_MOV, SLJIT_RETURN_REG, 0, SLJIT_IMM, PCRE2_ERROR_NOMATCH);
|
|
add_jump(compiler, &common->forced_quit, CMP(SLJIT_LESS, TMP2, 0, STR_PTR, 0));
|
|
JUMPHERE(end);
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), common->match_end_ptr, TMP2, 0);
|
|
}
|
|
|
|
start = JUMP(SLJIT_JUMP);
|
|
|
|
if (newlinecheck)
|
|
{
|
|
newlinelabel = LABEL();
|
|
OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1));
|
|
end = CMP(SLJIT_GREATER_EQUAL, STR_PTR, 0, STR_END, 0);
|
|
OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), 0);
|
|
OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, common->newline & 0xff);
|
|
OP_FLAGS(SLJIT_MOV, TMP1, 0, SLJIT_UNUSED, 0, SLJIT_EQUAL);
|
|
#if PCRE2_CODE_UNIT_WIDTH == 16 || PCRE2_CODE_UNIT_WIDTH == 32
|
|
OP2(SLJIT_SHL, TMP1, 0, TMP1, 0, SLJIT_IMM, UCHAR_SHIFT);
|
|
#endif
|
|
OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, TMP1, 0);
|
|
end2 = JUMP(SLJIT_JUMP);
|
|
}
|
|
|
|
mainloop = LABEL();
|
|
|
|
/* Increasing the STR_PTR here requires one less jump in the most common case. */
|
|
#ifdef SUPPORT_UNICODE
|
|
if (common->utf) readuchar = TRUE;
|
|
#endif
|
|
if (newlinecheck) readuchar = TRUE;
|
|
|
|
if (readuchar)
|
|
OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), 0);
|
|
|
|
if (newlinecheck)
|
|
CMPTO(SLJIT_EQUAL, TMP1, 0, SLJIT_IMM, (common->newline >> 8) & 0xff, newlinelabel);
|
|
|
|
OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1));
|
|
#if defined SUPPORT_UNICODE && PCRE2_CODE_UNIT_WIDTH != 32
|
|
#if PCRE2_CODE_UNIT_WIDTH == 8
|
|
if (common->utf)
|
|
{
|
|
singlechar = CMP(SLJIT_LESS, TMP1, 0, SLJIT_IMM, 0xc0);
|
|
OP1(SLJIT_MOV_U8, TMP1, 0, SLJIT_MEM1(TMP1), (sljit_sw)PRIV(utf8_table4) - 0xc0);
|
|
OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, TMP1, 0);
|
|
JUMPHERE(singlechar);
|
|
}
|
|
#elif PCRE2_CODE_UNIT_WIDTH == 16
|
|
if (common->utf)
|
|
{
|
|
singlechar = CMP(SLJIT_LESS, TMP1, 0, SLJIT_IMM, 0xd800);
|
|
OP2(SLJIT_AND, TMP1, 0, TMP1, 0, SLJIT_IMM, 0xfc00);
|
|
OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, 0xd800);
|
|
OP_FLAGS(SLJIT_MOV, TMP1, 0, SLJIT_UNUSED, 0, SLJIT_EQUAL);
|
|
OP2(SLJIT_SHL, TMP1, 0, TMP1, 0, SLJIT_IMM, 1);
|
|
OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, TMP1, 0);
|
|
JUMPHERE(singlechar);
|
|
}
|
|
#endif /* PCRE2_CODE_UNIT_WIDTH == [8|16] */
|
|
#endif /* SUPPORT_UNICODE && PCRE2_CODE_UNIT_WIDTH != 32 */
|
|
JUMPHERE(start);
|
|
|
|
if (newlinecheck)
|
|
{
|
|
JUMPHERE(end);
|
|
JUMPHERE(end2);
|
|
}
|
|
|
|
return mainloop;
|
|
}
|
|
|
|
#define MAX_N_CHARS 16
|
|
#define MAX_DIFF_CHARS 6
|
|
|
|
static SLJIT_INLINE void add_prefix_char(PCRE2_UCHAR chr, PCRE2_UCHAR *chars)
|
|
{
|
|
PCRE2_UCHAR i, len;
|
|
|
|
len = chars[0];
|
|
if (len == 255)
|
|
return;
|
|
|
|
if (len == 0)
|
|
{
|
|
chars[0] = 1;
|
|
chars[1] = chr;
|
|
return;
|
|
}
|
|
|
|
for (i = len; i > 0; i--)
|
|
if (chars[i] == chr)
|
|
return;
|
|
|
|
if (len >= MAX_DIFF_CHARS - 1)
|
|
{
|
|
chars[0] = 255;
|
|
return;
|
|
}
|
|
|
|
len++;
|
|
chars[len] = chr;
|
|
chars[0] = len;
|
|
}
|
|
|
|
static int scan_prefix(compiler_common *common, PCRE2_SPTR cc, PCRE2_UCHAR *chars, int max_chars, sljit_u32 *rec_count)
|
|
{
|
|
/* Recursive function, which scans prefix literals. */
|
|
BOOL last, any, class, caseless;
|
|
int len, repeat, len_save, consumed = 0;
|
|
sljit_u32 chr; /* Any unicode character. */
|
|
sljit_u8 *bytes, *bytes_end, byte;
|
|
PCRE2_SPTR alternative, cc_save, oc;
|
|
#if defined SUPPORT_UNICODE && PCRE2_CODE_UNIT_WIDTH == 8
|
|
PCRE2_UCHAR othercase[8];
|
|
#elif defined SUPPORT_UNICODE && PCRE2_CODE_UNIT_WIDTH == 16
|
|
PCRE2_UCHAR othercase[2];
|
|
#else
|
|
PCRE2_UCHAR othercase[1];
|
|
#endif
|
|
|
|
repeat = 1;
|
|
while (TRUE)
|
|
{
|
|
if (*rec_count == 0)
|
|
return 0;
|
|
(*rec_count)--;
|
|
|
|
last = TRUE;
|
|
any = FALSE;
|
|
class = FALSE;
|
|
caseless = FALSE;
|
|
|
|
switch (*cc)
|
|
{
|
|
case OP_CHARI:
|
|
caseless = TRUE;
|
|
case OP_CHAR:
|
|
last = FALSE;
|
|
cc++;
|
|
break;
|
|
|
|
case OP_SOD:
|
|
case OP_SOM:
|
|
case OP_SET_SOM:
|
|
case OP_NOT_WORD_BOUNDARY:
|
|
case OP_WORD_BOUNDARY:
|
|
case OP_EODN:
|
|
case OP_EOD:
|
|
case OP_CIRC:
|
|
case OP_CIRCM:
|
|
case OP_DOLL:
|
|
case OP_DOLLM:
|
|
/* Zero width assertions. */
|
|
cc++;
|
|
continue;
|
|
|
|
case OP_ASSERT:
|
|
case OP_ASSERT_NOT:
|
|
case OP_ASSERTBACK:
|
|
case OP_ASSERTBACK_NOT:
|
|
cc = bracketend(cc);
|
|
continue;
|
|
|
|
case OP_PLUSI:
|
|
case OP_MINPLUSI:
|
|
case OP_POSPLUSI:
|
|
caseless = TRUE;
|
|
case OP_PLUS:
|
|
case OP_MINPLUS:
|
|
case OP_POSPLUS:
|
|
cc++;
|
|
break;
|
|
|
|
case OP_EXACTI:
|
|
caseless = TRUE;
|
|
case OP_EXACT:
|
|
repeat = GET2(cc, 1);
|
|
last = FALSE;
|
|
cc += 1 + IMM2_SIZE;
|
|
break;
|
|
|
|
case OP_QUERYI:
|
|
case OP_MINQUERYI:
|
|
case OP_POSQUERYI:
|
|
caseless = TRUE;
|
|
case OP_QUERY:
|
|
case OP_MINQUERY:
|
|
case OP_POSQUERY:
|
|
len = 1;
|
|
cc++;
|
|
#ifdef SUPPORT_UNICODE
|
|
if (common->utf && HAS_EXTRALEN(*cc)) len += GET_EXTRALEN(*cc);
|
|
#endif
|
|
max_chars = scan_prefix(common, cc + len, chars, max_chars, rec_count);
|
|
if (max_chars == 0)
|
|
return consumed;
|
|
last = FALSE;
|
|
break;
|
|
|
|
case OP_KET:
|
|
cc += 1 + LINK_SIZE;
|
|
continue;
|
|
|
|
case OP_ALT:
|
|
cc += GET(cc, 1);
|
|
continue;
|
|
|
|
case OP_ONCE:
|
|
case OP_ONCE_NC:
|
|
case OP_BRA:
|
|
case OP_BRAPOS:
|
|
case OP_CBRA:
|
|
case OP_CBRAPOS:
|
|
alternative = cc + GET(cc, 1);
|
|
while (*alternative == OP_ALT)
|
|
{
|
|
max_chars = scan_prefix(common, alternative + 1 + LINK_SIZE, chars, max_chars, rec_count);
|
|
if (max_chars == 0)
|
|
return consumed;
|
|
alternative += GET(alternative, 1);
|
|
}
|
|
|
|
if (*cc == OP_CBRA || *cc == OP_CBRAPOS)
|
|
cc += IMM2_SIZE;
|
|
cc += 1 + LINK_SIZE;
|
|
continue;
|
|
|
|
case OP_CLASS:
|
|
#if defined SUPPORT_UNICODE && PCRE2_CODE_UNIT_WIDTH == 8
|
|
if (common->utf && !is_char7_bitset((const sljit_u8 *)(cc + 1), FALSE))
|
|
return consumed;
|
|
#endif
|
|
class = TRUE;
|
|
break;
|
|
|
|
case OP_NCLASS:
|
|
#if defined SUPPORT_UNICODE && PCRE2_CODE_UNIT_WIDTH != 32
|
|
if (common->utf) return consumed;
|
|
#endif
|
|
class = TRUE;
|
|
break;
|
|
|
|
#if defined SUPPORT_UNICODE || PCRE2_CODE_UNIT_WIDTH != 8
|
|
case OP_XCLASS:
|
|
#if defined SUPPORT_UNICODE && PCRE2_CODE_UNIT_WIDTH != 32
|
|
if (common->utf) return consumed;
|
|
#endif
|
|
any = TRUE;
|
|
cc += GET(cc, 1);
|
|
break;
|
|
#endif
|
|
|
|
case OP_DIGIT:
|
|
#if defined SUPPORT_UNICODE && PCRE2_CODE_UNIT_WIDTH == 8
|
|
if (common->utf && !is_char7_bitset((const sljit_u8 *)common->ctypes - cbit_length + cbit_digit, FALSE))
|
|
return consumed;
|
|
#endif
|
|
any = TRUE;
|
|
cc++;
|
|
break;
|
|
|
|
case OP_WHITESPACE:
|
|
#if defined SUPPORT_UNICODE && PCRE2_CODE_UNIT_WIDTH == 8
|
|
if (common->utf && !is_char7_bitset((const sljit_u8 *)common->ctypes - cbit_length + cbit_space, FALSE))
|
|
return consumed;
|
|
#endif
|
|
any = TRUE;
|
|
cc++;
|
|
break;
|
|
|
|
case OP_WORDCHAR:
|
|
#if defined SUPPORT_UNICODE && PCRE2_CODE_UNIT_WIDTH == 8
|
|
if (common->utf && !is_char7_bitset((const sljit_u8 *)common->ctypes - cbit_length + cbit_word, FALSE))
|
|
return consumed;
|
|
#endif
|
|
any = TRUE;
|
|
cc++;
|
|
break;
|
|
|
|
case OP_NOT:
|
|
case OP_NOTI:
|
|
cc++;
|
|
/* Fall through. */
|
|
case OP_NOT_DIGIT:
|
|
case OP_NOT_WHITESPACE:
|
|
case OP_NOT_WORDCHAR:
|
|
case OP_ANY:
|
|
case OP_ALLANY:
|
|
#if defined SUPPORT_UNICODE && PCRE2_CODE_UNIT_WIDTH != 32
|
|
if (common->utf) return consumed;
|
|
#endif
|
|
any = TRUE;
|
|
cc++;
|
|
break;
|
|
|
|
#ifdef SUPPORT_UNICODE
|
|
case OP_NOTPROP:
|
|
case OP_PROP:
|
|
#if PCRE2_CODE_UNIT_WIDTH != 32
|
|
if (common->utf) return consumed;
|
|
#endif
|
|
any = TRUE;
|
|
cc += 1 + 2;
|
|
break;
|
|
#endif
|
|
|
|
case OP_TYPEEXACT:
|
|
repeat = GET2(cc, 1);
|
|
cc += 1 + IMM2_SIZE;
|
|
continue;
|
|
|
|
case OP_NOTEXACT:
|
|
case OP_NOTEXACTI:
|
|
#if defined SUPPORT_UNICODE && PCRE2_CODE_UNIT_WIDTH != 32
|
|
if (common->utf) return consumed;
|
|
#endif
|
|
any = TRUE;
|
|
repeat = GET2(cc, 1);
|
|
cc += 1 + IMM2_SIZE + 1;
|
|
break;
|
|
|
|
default:
|
|
return consumed;
|
|
}
|
|
|
|
if (any)
|
|
{
|
|
do
|
|
{
|
|
chars[0] = 255;
|
|
|
|
consumed++;
|
|
if (--max_chars == 0)
|
|
return consumed;
|
|
chars += MAX_DIFF_CHARS;
|
|
}
|
|
while (--repeat > 0);
|
|
|
|
repeat = 1;
|
|
continue;
|
|
}
|
|
|
|
if (class)
|
|
{
|
|
bytes = (sljit_u8*) (cc + 1);
|
|
cc += 1 + 32 / sizeof(PCRE2_UCHAR);
|
|
|
|
switch (*cc)
|
|
{
|
|
case OP_CRSTAR:
|
|
case OP_CRMINSTAR:
|
|
case OP_CRPOSSTAR:
|
|
case OP_CRQUERY:
|
|
case OP_CRMINQUERY:
|
|
case OP_CRPOSQUERY:
|
|
max_chars = scan_prefix(common, cc + 1, chars, max_chars, rec_count);
|
|
if (max_chars == 0)
|
|
return consumed;
|
|
break;
|
|
|
|
default:
|
|
case OP_CRPLUS:
|
|
case OP_CRMINPLUS:
|
|
case OP_CRPOSPLUS:
|
|
break;
|
|
|
|
case OP_CRRANGE:
|
|
case OP_CRMINRANGE:
|
|
case OP_CRPOSRANGE:
|
|
repeat = GET2(cc, 1);
|
|
if (repeat <= 0)
|
|
return consumed;
|
|
break;
|
|
}
|
|
|
|
do
|
|
{
|
|
if (bytes[31] & 0x80)
|
|
chars[0] = 255;
|
|
else if (chars[0] != 255)
|
|
{
|
|
bytes_end = bytes + 32;
|
|
chr = 0;
|
|
do
|
|
{
|
|
byte = *bytes++;
|
|
SLJIT_ASSERT((chr & 0x7) == 0);
|
|
if (byte == 0)
|
|
chr += 8;
|
|
else
|
|
{
|
|
do
|
|
{
|
|
if ((byte & 0x1) != 0)
|
|
add_prefix_char(chr, chars);
|
|
byte >>= 1;
|
|
chr++;
|
|
}
|
|
while (byte != 0);
|
|
chr = (chr + 7) & ~7;
|
|
}
|
|
}
|
|
while (chars[0] != 255 && bytes < bytes_end);
|
|
bytes = bytes_end - 32;
|
|
}
|
|
|
|
consumed++;
|
|
if (--max_chars == 0)
|
|
return consumed;
|
|
chars += MAX_DIFF_CHARS;
|
|
}
|
|
while (--repeat > 0);
|
|
|
|
switch (*cc)
|
|
{
|
|
case OP_CRSTAR:
|
|
case OP_CRMINSTAR:
|
|
case OP_CRPOSSTAR:
|
|
return consumed;
|
|
|
|
case OP_CRQUERY:
|
|
case OP_CRMINQUERY:
|
|
case OP_CRPOSQUERY:
|
|
cc++;
|
|
break;
|
|
|
|
case OP_CRRANGE:
|
|
case OP_CRMINRANGE:
|
|
case OP_CRPOSRANGE:
|
|
if (GET2(cc, 1) != GET2(cc, 1 + IMM2_SIZE))
|
|
return consumed;
|
|
cc += 1 + 2 * IMM2_SIZE;
|
|
break;
|
|
}
|
|
|
|
repeat = 1;
|
|
continue;
|
|
}
|
|
|
|
len = 1;
|
|
#ifdef SUPPORT_UNICODE
|
|
if (common->utf && HAS_EXTRALEN(*cc)) len += GET_EXTRALEN(*cc);
|
|
#endif
|
|
|
|
if (caseless && char_has_othercase(common, cc))
|
|
{
|
|
#ifdef SUPPORT_UNICODE
|
|
if (common->utf)
|
|
{
|
|
GETCHAR(chr, cc);
|
|
if ((int)PRIV(ord2utf)(char_othercase(common, chr), othercase) != len)
|
|
return consumed;
|
|
}
|
|
else
|
|
#endif
|
|
{
|
|
chr = *cc;
|
|
othercase[0] = TABLE_GET(chr, common->fcc, chr);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
caseless = FALSE;
|
|
othercase[0] = 0; /* Stops compiler warning - PH */
|
|
}
|
|
|
|
len_save = len;
|
|
cc_save = cc;
|
|
while (TRUE)
|
|
{
|
|
oc = othercase;
|
|
do
|
|
{
|
|
chr = *cc;
|
|
add_prefix_char(*cc, chars);
|
|
|
|
if (caseless)
|
|
add_prefix_char(*oc, chars);
|
|
|
|
len--;
|
|
consumed++;
|
|
if (--max_chars == 0)
|
|
return consumed;
|
|
chars += MAX_DIFF_CHARS;
|
|
cc++;
|
|
oc++;
|
|
}
|
|
while (len > 0);
|
|
|
|
if (--repeat == 0)
|
|
break;
|
|
|
|
len = len_save;
|
|
cc = cc_save;
|
|
}
|
|
|
|
repeat = 1;
|
|
if (last)
|
|
return consumed;
|
|
}
|
|
}
|
|
|
|
#if (defined SLJIT_CONFIG_X86 && SLJIT_CONFIG_X86)
|
|
|
|
static sljit_s32 character_to_int32(PCRE2_UCHAR chr)
|
|
{
|
|
sljit_s32 value = (sljit_s32)chr;
|
|
#if PCRE2_CODE_UNIT_WIDTH == 8
|
|
#define SSE2_COMPARE_TYPE_INDEX 0
|
|
return (value << 24) | (value << 16) | (value << 8) | value;
|
|
#elif PCRE2_CODE_UNIT_WIDTH == 16
|
|
#define SSE2_COMPARE_TYPE_INDEX 1
|
|
return (value << 16) | value;
|
|
#elif PCRE2_CODE_UNIT_WIDTH == 32
|
|
#define SSE2_COMPARE_TYPE_INDEX 2
|
|
return value;
|
|
#else
|
|
#error "Unsupported unit width"
|
|
#endif
|
|
}
|
|
|
|
static SLJIT_INLINE void fast_forward_first_char2_sse2(compiler_common *common, PCRE2_UCHAR char1, PCRE2_UCHAR char2)
|
|
{
|
|
DEFINE_COMPILER;
|
|
struct sljit_label *start;
|
|
struct sljit_jump *quit[3];
|
|
struct sljit_jump *nomatch;
|
|
sljit_u8 instruction[8];
|
|
sljit_s32 tmp1_ind = sljit_get_register_index(TMP1);
|
|
sljit_s32 tmp2_ind = sljit_get_register_index(TMP2);
|
|
sljit_s32 str_ptr_ind = sljit_get_register_index(STR_PTR);
|
|
BOOL load_twice = FALSE;
|
|
PCRE2_UCHAR bit;
|
|
|
|
bit = char1 ^ char2;
|
|
if (!is_powerof2(bit))
|
|
bit = 0;
|
|
|
|
if ((char1 != char2) && bit == 0)
|
|
load_twice = TRUE;
|
|
|
|
quit[0] = CMP(SLJIT_GREATER_EQUAL, STR_PTR, 0, STR_END, 0);
|
|
|
|
/* First part (unaligned start) */
|
|
|
|
OP1(SLJIT_MOV, TMP1, 0, SLJIT_IMM, character_to_int32(char1 | bit));
|
|
|
|
SLJIT_ASSERT(tmp1_ind < 8 && tmp2_ind == 1);
|
|
|
|
/* MOVD xmm, r/m32 */
|
|
instruction[0] = 0x66;
|
|
instruction[1] = 0x0f;
|
|
instruction[2] = 0x6e;
|
|
instruction[3] = 0xc0 | (2 << 3) | tmp1_ind;
|
|
sljit_emit_op_custom(compiler, instruction, 4);
|
|
|
|
if (char1 != char2)
|
|
{
|
|
OP1(SLJIT_MOV, TMP1, 0, SLJIT_IMM, character_to_int32(bit != 0 ? bit : char2));
|
|
|
|
/* MOVD xmm, r/m32 */
|
|
instruction[3] = 0xc0 | (3 << 3) | tmp1_ind;
|
|
sljit_emit_op_custom(compiler, instruction, 4);
|
|
}
|
|
|
|
/* PSHUFD xmm1, xmm2/m128, imm8 */
|
|
instruction[2] = 0x70;
|
|
instruction[3] = 0xc0 | (2 << 3) | 2;
|
|
instruction[4] = 0;
|
|
sljit_emit_op_custom(compiler, instruction, 5);
|
|
|
|
if (char1 != char2)
|
|
{
|
|
/* PSHUFD xmm1, xmm2/m128, imm8 */
|
|
instruction[3] = 0xc0 | (3 << 3) | 3;
|
|
instruction[4] = 0;
|
|
sljit_emit_op_custom(compiler, instruction, 5);
|
|
}
|
|
|
|
OP2(SLJIT_AND, TMP2, 0, STR_PTR, 0, SLJIT_IMM, 0xf);
|
|
OP2(SLJIT_AND, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, ~0xf);
|
|
|
|
/* MOVDQA xmm1, xmm2/m128 */
|
|
#if (defined SLJIT_CONFIG_X86_64 && SLJIT_CONFIG_X86_64)
|
|
|
|
if (str_ptr_ind < 8)
|
|
{
|
|
instruction[2] = 0x6f;
|
|
instruction[3] = (0 << 3) | str_ptr_ind;
|
|
sljit_emit_op_custom(compiler, instruction, 4);
|
|
|
|
if (load_twice)
|
|
{
|
|
instruction[3] = (1 << 3) | str_ptr_ind;
|
|
sljit_emit_op_custom(compiler, instruction, 4);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
instruction[1] = 0x41;
|
|
instruction[2] = 0x0f;
|
|
instruction[3] = 0x6f;
|
|
instruction[4] = (0 << 3) | (str_ptr_ind & 0x7);
|
|
sljit_emit_op_custom(compiler, instruction, 5);
|
|
|
|
if (load_twice)
|
|
{
|
|
instruction[4] = (1 << 3) | str_ptr_ind;
|
|
sljit_emit_op_custom(compiler, instruction, 5);
|
|
}
|
|
instruction[1] = 0x0f;
|
|
}
|
|
|
|
#else
|
|
|
|
instruction[2] = 0x6f;
|
|
instruction[3] = (0 << 3) | str_ptr_ind;
|
|
sljit_emit_op_custom(compiler, instruction, 4);
|
|
|
|
if (load_twice)
|
|
{
|
|
instruction[3] = (1 << 3) | str_ptr_ind;
|
|
sljit_emit_op_custom(compiler, instruction, 4);
|
|
}
|
|
|
|
#endif
|
|
|
|
if (bit != 0)
|
|
{
|
|
/* POR xmm1, xmm2/m128 */
|
|
instruction[2] = 0xeb;
|
|
instruction[3] = 0xc0 | (0 << 3) | 3;
|
|
sljit_emit_op_custom(compiler, instruction, 4);
|
|
}
|
|
|
|
/* PCMPEQB/W/D xmm1, xmm2/m128 */
|
|
instruction[2] = 0x74 + SSE2_COMPARE_TYPE_INDEX;
|
|
instruction[3] = 0xc0 | (0 << 3) | 2;
|
|
sljit_emit_op_custom(compiler, instruction, 4);
|
|
|
|
if (load_twice)
|
|
{
|
|
instruction[3] = 0xc0 | (1 << 3) | 3;
|
|
sljit_emit_op_custom(compiler, instruction, 4);
|
|
}
|
|
|
|
/* PMOVMSKB reg, xmm */
|
|
instruction[2] = 0xd7;
|
|
instruction[3] = 0xc0 | (tmp1_ind << 3) | 0;
|
|
sljit_emit_op_custom(compiler, instruction, 4);
|
|
|
|
if (load_twice)
|
|
{
|
|
OP1(SLJIT_MOV, RETURN_ADDR, 0, TMP2, 0);
|
|
instruction[3] = 0xc0 | (tmp2_ind << 3) | 1;
|
|
sljit_emit_op_custom(compiler, instruction, 4);
|
|
|
|
OP2(SLJIT_OR, TMP1, 0, TMP1, 0, TMP2, 0);
|
|
OP1(SLJIT_MOV, TMP2, 0, RETURN_ADDR, 0);
|
|
}
|
|
|
|
OP2(SLJIT_ASHR, TMP1, 0, TMP1, 0, TMP2, 0);
|
|
|
|
/* BSF r32, r/m32 */
|
|
instruction[0] = 0x0f;
|
|
instruction[1] = 0xbc;
|
|
instruction[2] = 0xc0 | (tmp1_ind << 3) | tmp1_ind;
|
|
sljit_emit_op_custom(compiler, instruction, 3);
|
|
|
|
nomatch = JUMP(SLJIT_ZERO);
|
|
|
|
OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, TMP2, 0);
|
|
OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, TMP1, 0);
|
|
quit[1] = JUMP(SLJIT_JUMP);
|
|
|
|
JUMPHERE(nomatch);
|
|
|
|
start = LABEL();
|
|
OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, 16);
|
|
quit[2] = CMP(SLJIT_GREATER_EQUAL, STR_PTR, 0, STR_END, 0);
|
|
|
|
/* Second part (aligned) */
|
|
|
|
instruction[0] = 0x66;
|
|
instruction[1] = 0x0f;
|
|
|
|
/* MOVDQA xmm1, xmm2/m128 */
|
|
#if (defined SLJIT_CONFIG_X86_64 && SLJIT_CONFIG_X86_64)
|
|
|
|
if (str_ptr_ind < 8)
|
|
{
|
|
instruction[2] = 0x6f;
|
|
instruction[3] = (0 << 3) | str_ptr_ind;
|
|
sljit_emit_op_custom(compiler, instruction, 4);
|
|
|
|
if (load_twice)
|
|
{
|
|
instruction[3] = (1 << 3) | str_ptr_ind;
|
|
sljit_emit_op_custom(compiler, instruction, 4);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
instruction[1] = 0x41;
|
|
instruction[2] = 0x0f;
|
|
instruction[3] = 0x6f;
|
|
instruction[4] = (0 << 3) | (str_ptr_ind & 0x7);
|
|
sljit_emit_op_custom(compiler, instruction, 5);
|
|
|
|
if (load_twice)
|
|
{
|
|
instruction[4] = (1 << 3) | str_ptr_ind;
|
|
sljit_emit_op_custom(compiler, instruction, 5);
|
|
}
|
|
instruction[1] = 0x0f;
|
|
}
|
|
|
|
#else
|
|
|
|
instruction[2] = 0x6f;
|
|
instruction[3] = (0 << 3) | str_ptr_ind;
|
|
sljit_emit_op_custom(compiler, instruction, 4);
|
|
|
|
if (load_twice)
|
|
{
|
|
instruction[3] = (1 << 3) | str_ptr_ind;
|
|
sljit_emit_op_custom(compiler, instruction, 4);
|
|
}
|
|
|
|
#endif
|
|
|
|
if (bit != 0)
|
|
{
|
|
/* POR xmm1, xmm2/m128 */
|
|
instruction[2] = 0xeb;
|
|
instruction[3] = 0xc0 | (0 << 3) | 3;
|
|
sljit_emit_op_custom(compiler, instruction, 4);
|
|
}
|
|
|
|
/* PCMPEQB/W/D xmm1, xmm2/m128 */
|
|
instruction[2] = 0x74 + SSE2_COMPARE_TYPE_INDEX;
|
|
instruction[3] = 0xc0 | (0 << 3) | 2;
|
|
sljit_emit_op_custom(compiler, instruction, 4);
|
|
|
|
if (load_twice)
|
|
{
|
|
instruction[3] = 0xc0 | (1 << 3) | 3;
|
|
sljit_emit_op_custom(compiler, instruction, 4);
|
|
}
|
|
|
|
/* PMOVMSKB reg, xmm */
|
|
instruction[2] = 0xd7;
|
|
instruction[3] = 0xc0 | (tmp1_ind << 3) | 0;
|
|
sljit_emit_op_custom(compiler, instruction, 4);
|
|
|
|
if (load_twice)
|
|
{
|
|
instruction[3] = 0xc0 | (tmp2_ind << 3) | 1;
|
|
sljit_emit_op_custom(compiler, instruction, 4);
|
|
|
|
OP2(SLJIT_OR, TMP1, 0, TMP1, 0, TMP2, 0);
|
|
}
|
|
|
|
/* BSF r32, r/m32 */
|
|
instruction[0] = 0x0f;
|
|
instruction[1] = 0xbc;
|
|
instruction[2] = 0xc0 | (tmp1_ind << 3) | tmp1_ind;
|
|
sljit_emit_op_custom(compiler, instruction, 3);
|
|
|
|
JUMPTO(SLJIT_ZERO, start);
|
|
|
|
OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, TMP1, 0);
|
|
|
|
start = LABEL();
|
|
SET_LABEL(quit[0], start);
|
|
SET_LABEL(quit[1], start);
|
|
SET_LABEL(quit[2], start);
|
|
}
|
|
|
|
#undef SSE2_COMPARE_TYPE_INDEX
|
|
|
|
#endif
|
|
|
|
static void fast_forward_first_char2(compiler_common *common, PCRE2_UCHAR char1, PCRE2_UCHAR char2, sljit_s32 offset)
|
|
{
|
|
DEFINE_COMPILER;
|
|
struct sljit_label *start;
|
|
struct sljit_jump *quit;
|
|
struct sljit_jump *found;
|
|
PCRE2_UCHAR mask;
|
|
#if defined SUPPORT_UNICODE && PCRE2_CODE_UNIT_WIDTH != 32
|
|
struct sljit_label *utf_start = NULL;
|
|
struct sljit_jump *utf_quit = NULL;
|
|
#endif
|
|
BOOL has_match_end = (common->match_end_ptr != 0);
|
|
|
|
if (offset > 0)
|
|
OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(offset));
|
|
|
|
if (has_match_end)
|
|
{
|
|
OP1(SLJIT_MOV, TMP3, 0, STR_END, 0);
|
|
|
|
OP2(SLJIT_ADD, STR_END, 0, SLJIT_MEM1(SLJIT_SP), common->match_end_ptr, SLJIT_IMM, IN_UCHARS(offset + 1));
|
|
#if (defined SLJIT_CONFIG_X86 && SLJIT_CONFIG_X86)
|
|
if (sljit_x86_is_cmov_available())
|
|
{
|
|
OP2(SLJIT_SUB | SLJIT_SET_U, SLJIT_UNUSED, 0, STR_END, 0, TMP3, 0);
|
|
sljit_x86_emit_cmov(compiler, SLJIT_GREATER, STR_END, TMP3, 0);
|
|
}
|
|
#endif
|
|
{
|
|
quit = CMP(SLJIT_LESS_EQUAL, STR_END, 0, TMP3, 0);
|
|
OP1(SLJIT_MOV, STR_END, 0, TMP3, 0);
|
|
JUMPHERE(quit);
|
|
}
|
|
}
|
|
|
|
#if defined SUPPORT_UNICODE && PCRE2_CODE_UNIT_WIDTH != 32
|
|
if (common->utf && offset > 0)
|
|
utf_start = LABEL();
|
|
#endif
|
|
|
|
#if (defined SLJIT_CONFIG_X86 && SLJIT_CONFIG_X86)
|
|
|
|
/* SSE2 accelerated first character search. */
|
|
|
|
if (sljit_x86_is_sse2_available())
|
|
{
|
|
fast_forward_first_char2_sse2(common, char1, char2);
|
|
|
|
SLJIT_ASSERT(common->mode == PCRE2_JIT_COMPLETE || offset == 0);
|
|
if (common->mode == PCRE2_JIT_COMPLETE)
|
|
{
|
|
/* In complete mode, we don't need to run a match when STR_PTR == STR_END. */
|
|
SLJIT_ASSERT(common->forced_quit_label == NULL);
|
|
OP1(SLJIT_MOV, SLJIT_RETURN_REG, 0, SLJIT_IMM, PCRE2_ERROR_NOMATCH);
|
|
add_jump(compiler, &common->forced_quit, CMP(SLJIT_GREATER_EQUAL, STR_PTR, 0, STR_END, 0));
|
|
|
|
#if defined SUPPORT_UNICODE && PCRE2_CODE_UNIT_WIDTH != 32
|
|
if (common->utf && offset > 0)
|
|
{
|
|
SLJIT_ASSERT(common->mode == PCRE2_JIT_COMPLETE);
|
|
|
|
OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(-offset));
|
|
OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1));
|
|
#if PCRE2_CODE_UNIT_WIDTH == 8
|
|
OP2(SLJIT_AND, TMP1, 0, TMP1, 0, SLJIT_IMM, 0xc0);
|
|
CMPTO(SLJIT_EQUAL, TMP1, 0, SLJIT_IMM, 0x80, utf_start);
|
|
#elif PCRE2_CODE_UNIT_WIDTH == 16
|
|
OP2(SLJIT_AND, TMP1, 0, TMP1, 0, SLJIT_IMM, 0xfc00);
|
|
CMPTO(SLJIT_EQUAL, TMP1, 0, SLJIT_IMM, 0xdc00, utf_start);
|
|
#else
|
|
#error "Unknown code width"
|
|
#endif
|
|
OP2(SLJIT_SUB, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1));
|
|
}
|
|
#endif
|
|
|
|
if (offset > 0)
|
|
OP2(SLJIT_SUB, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(offset));
|
|
}
|
|
else if (sljit_x86_is_cmov_available())
|
|
{
|
|
OP2(SLJIT_SUB | SLJIT_SET_U, SLJIT_UNUSED, 0, STR_PTR, 0, STR_END, 0);
|
|
sljit_x86_emit_cmov(compiler, SLJIT_GREATER_EQUAL, STR_PTR, has_match_end ? SLJIT_MEM1(SLJIT_SP) : STR_END, has_match_end ? common->match_end_ptr : 0);
|
|
}
|
|
else
|
|
{
|
|
quit = CMP(SLJIT_LESS, STR_PTR, 0, STR_END, 0);
|
|
OP1(SLJIT_MOV, STR_PTR, 0, has_match_end ? SLJIT_MEM1(SLJIT_SP) : STR_END, has_match_end ? common->match_end_ptr : 0);
|
|
JUMPHERE(quit);
|
|
}
|
|
|
|
if (has_match_end)
|
|
OP1(SLJIT_MOV, STR_END, 0, TMP3, 0);
|
|
return;
|
|
}
|
|
|
|
#endif
|
|
|
|
quit = CMP(SLJIT_GREATER_EQUAL, STR_PTR, 0, STR_END, 0);
|
|
|
|
start = LABEL();
|
|
OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), 0);
|
|
|
|
if (char1 == char2)
|
|
found = CMP(SLJIT_EQUAL, TMP1, 0, SLJIT_IMM, char1);
|
|
else
|
|
{
|
|
mask = char1 ^ char2;
|
|
if (is_powerof2(mask))
|
|
{
|
|
OP2(SLJIT_OR, TMP1, 0, TMP1, 0, SLJIT_IMM, mask);
|
|
found = CMP(SLJIT_EQUAL, TMP1, 0, SLJIT_IMM, char1 | mask);
|
|
}
|
|
else
|
|
{
|
|
OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, char1);
|
|
OP_FLAGS(SLJIT_MOV, TMP2, 0, SLJIT_UNUSED, 0, SLJIT_EQUAL);
|
|
OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, char2);
|
|
OP_FLAGS(SLJIT_OR | SLJIT_SET_E, TMP2, 0, TMP2, 0, SLJIT_EQUAL);
|
|
found = JUMP(SLJIT_NOT_ZERO);
|
|
}
|
|
}
|
|
|
|
OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1));
|
|
CMPTO(SLJIT_LESS, STR_PTR, 0, STR_END, 0, start);
|
|
|
|
#if defined SUPPORT_UNICODE && PCRE2_CODE_UNIT_WIDTH != 32
|
|
if (common->utf && offset > 0)
|
|
utf_quit = JUMP(SLJIT_JUMP);
|
|
#endif
|
|
|
|
JUMPHERE(found);
|
|
|
|
#if defined SUPPORT_UNICODE && PCRE2_CODE_UNIT_WIDTH != 32
|
|
if (common->utf && offset > 0)
|
|
{
|
|
OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(-offset));
|
|
OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1));
|
|
#if PCRE2_CODE_UNIT_WIDTH == 8
|
|
OP2(SLJIT_AND, TMP1, 0, TMP1, 0, SLJIT_IMM, 0xc0);
|
|
CMPTO(SLJIT_EQUAL, TMP1, 0, SLJIT_IMM, 0x80, utf_start);
|
|
#elif PCRE2_CODE_UNIT_WIDTH == 16
|
|
OP2(SLJIT_AND, TMP1, 0, TMP1, 0, SLJIT_IMM, 0xfc00);
|
|
CMPTO(SLJIT_EQUAL, TMP1, 0, SLJIT_IMM, 0xdc00, utf_start);
|
|
#else
|
|
#error "Unknown code width"
|
|
#endif
|
|
OP2(SLJIT_SUB, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1));
|
|
JUMPHERE(utf_quit);
|
|
}
|
|
#endif
|
|
|
|
JUMPHERE(quit);
|
|
|
|
if (has_match_end)
|
|
{
|
|
quit = CMP(SLJIT_LESS, STR_PTR, 0, STR_END, 0);
|
|
OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_MEM1(SLJIT_SP), common->match_end_ptr);
|
|
if (offset > 0)
|
|
OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(offset));
|
|
JUMPHERE(quit);
|
|
OP1(SLJIT_MOV, STR_END, 0, TMP3, 0);
|
|
}
|
|
|
|
if (offset > 0)
|
|
OP2(SLJIT_SUB, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(offset));
|
|
}
|
|
|
|
static SLJIT_INLINE BOOL fast_forward_first_n_chars(compiler_common *common)
|
|
{
|
|
DEFINE_COMPILER;
|
|
struct sljit_label *start;
|
|
struct sljit_jump *quit;
|
|
struct sljit_jump *match;
|
|
/* bytes[0] represent the number of characters between 0
|
|
and MAX_N_BYTES - 1, 255 represents any character. */
|
|
PCRE2_UCHAR chars[MAX_N_CHARS * MAX_DIFF_CHARS];
|
|
sljit_s32 offset;
|
|
PCRE2_UCHAR mask;
|
|
PCRE2_UCHAR *char_set, *char_set_end;
|
|
int i, max, from;
|
|
int range_right = -1, range_len;
|
|
sljit_u8 *update_table = NULL;
|
|
BOOL in_range;
|
|
sljit_u32 rec_count;
|
|
|
|
for (i = 0; i < MAX_N_CHARS; i++)
|
|
chars[i * MAX_DIFF_CHARS] = 0;
|
|
|
|
rec_count = 10000;
|
|
max = scan_prefix(common, common->start, chars, MAX_N_CHARS, &rec_count);
|
|
|
|
if (max < 1)
|
|
return FALSE;
|
|
|
|
in_range = FALSE;
|
|
/* Prevent compiler "uninitialized" warning */
|
|
from = 0;
|
|
range_len = 4 /* minimum length */ - 1;
|
|
for (i = 0; i <= max; i++)
|
|
{
|
|
if (in_range && (i - from) > range_len && (chars[(i - 1) * MAX_DIFF_CHARS] < 255))
|
|
{
|
|
range_len = i - from;
|
|
range_right = i - 1;
|
|
}
|
|
|
|
if (i < max && chars[i * MAX_DIFF_CHARS] < 255)
|
|
{
|
|
SLJIT_ASSERT(chars[i * MAX_DIFF_CHARS] > 0);
|
|
if (!in_range)
|
|
{
|
|
in_range = TRUE;
|
|
from = i;
|
|
}
|
|
}
|
|
else
|
|
in_range = FALSE;
|
|
}
|
|
|
|
if (range_right >= 0)
|
|
{
|
|
update_table = (sljit_u8 *)allocate_read_only_data(common, 256);
|
|
if (update_table == NULL)
|
|
return TRUE;
|
|
memset(update_table, IN_UCHARS(range_len), 256);
|
|
|
|
for (i = 0; i < range_len; i++)
|
|
{
|
|
char_set = chars + ((range_right - i) * MAX_DIFF_CHARS);
|
|
SLJIT_ASSERT(char_set[0] > 0 && char_set[0] < 255);
|
|
char_set_end = char_set + char_set[0];
|
|
char_set++;
|
|
while (char_set <= char_set_end)
|
|
{
|
|
if (update_table[(*char_set) & 0xff] > IN_UCHARS(i))
|
|
update_table[(*char_set) & 0xff] = IN_UCHARS(i);
|
|
char_set++;
|
|
}
|
|
}
|
|
}
|
|
|
|
offset = -1;
|
|
/* Scan forward. */
|
|
for (i = 0; i < max; i++)
|
|
{
|
|
if (offset == -1)
|
|
{
|
|
if (chars[i * MAX_DIFF_CHARS] <= 2)
|
|
offset = i;
|
|
}
|
|
else if (chars[offset * MAX_DIFF_CHARS] == 2 && chars[i * MAX_DIFF_CHARS] <= 2)
|
|
{
|
|
if (chars[i * MAX_DIFF_CHARS] == 1)
|
|
offset = i;
|
|
else
|
|
{
|
|
mask = chars[offset * MAX_DIFF_CHARS + 1] ^ chars[offset * MAX_DIFF_CHARS + 2];
|
|
if (!is_powerof2(mask))
|
|
{
|
|
mask = chars[i * MAX_DIFF_CHARS + 1] ^ chars[i * MAX_DIFF_CHARS + 2];
|
|
if (is_powerof2(mask))
|
|
offset = i;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
if (range_right < 0)
|
|
{
|
|
if (offset < 0)
|
|
return FALSE;
|
|
SLJIT_ASSERT(chars[offset * MAX_DIFF_CHARS] >= 1 && chars[offset * MAX_DIFF_CHARS] <= 2);
|
|
/* Works regardless the value is 1 or 2. */
|
|
mask = chars[offset * MAX_DIFF_CHARS + chars[offset * MAX_DIFF_CHARS]];
|
|
fast_forward_first_char2(common, chars[offset * MAX_DIFF_CHARS + 1], mask, offset);
|
|
return TRUE;
|
|
}
|
|
|
|
if (range_right == offset)
|
|
offset = -1;
|
|
|
|
SLJIT_ASSERT(offset == -1 || (chars[offset * MAX_DIFF_CHARS] >= 1 && chars[offset * MAX_DIFF_CHARS] <= 2));
|
|
|
|
max -= 1;
|
|
SLJIT_ASSERT(max > 0);
|
|
if (common->match_end_ptr != 0)
|
|
{
|
|
OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_SP), common->match_end_ptr);
|
|
OP1(SLJIT_MOV, TMP3, 0, STR_END, 0);
|
|
OP2(SLJIT_SUB, STR_END, 0, STR_END, 0, SLJIT_IMM, IN_UCHARS(max));
|
|
quit = CMP(SLJIT_LESS_EQUAL, STR_END, 0, TMP1, 0);
|
|
OP1(SLJIT_MOV, STR_END, 0, TMP1, 0);
|
|
JUMPHERE(quit);
|
|
}
|
|
else
|
|
OP2(SLJIT_SUB, STR_END, 0, STR_END, 0, SLJIT_IMM, IN_UCHARS(max));
|
|
|
|
SLJIT_ASSERT(range_right >= 0);
|
|
|
|
#if !(defined SLJIT_CONFIG_X86_32 && SLJIT_CONFIG_X86_32)
|
|
OP1(SLJIT_MOV, RETURN_ADDR, 0, SLJIT_IMM, (sljit_sw)update_table);
|
|
#endif
|
|
|
|
start = LABEL();
|
|
quit = CMP(SLJIT_GREATER_EQUAL, STR_PTR, 0, STR_END, 0);
|
|
|
|
#if PCRE2_CODE_UNIT_WIDTH == 8 || (defined SLJIT_LITTLE_ENDIAN && SLJIT_LITTLE_ENDIAN)
|
|
OP1(SLJIT_MOV_U8, TMP1, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(range_right));
|
|
#else
|
|
OP1(SLJIT_MOV_U8, TMP1, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(range_right + 1) - 1);
|
|
#endif
|
|
|
|
#if !(defined SLJIT_CONFIG_X86_32 && SLJIT_CONFIG_X86_32)
|
|
OP1(SLJIT_MOV_U8, TMP1, 0, SLJIT_MEM2(RETURN_ADDR, TMP1), 0);
|
|
#else
|
|
OP1(SLJIT_MOV_U8, TMP1, 0, SLJIT_MEM1(TMP1), (sljit_sw)update_table);
|
|
#endif
|
|
OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, TMP1, 0);
|
|
CMPTO(SLJIT_NOT_EQUAL, TMP1, 0, SLJIT_IMM, 0, start);
|
|
|
|
if (offset >= 0)
|
|
{
|
|
OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(offset));
|
|
OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1));
|
|
|
|
if (chars[offset * MAX_DIFF_CHARS] == 1)
|
|
CMPTO(SLJIT_NOT_EQUAL, TMP1, 0, SLJIT_IMM, chars[offset * MAX_DIFF_CHARS + 1], start);
|
|
else
|
|
{
|
|
mask = chars[offset * MAX_DIFF_CHARS + 1] ^ chars[offset * MAX_DIFF_CHARS + 2];
|
|
if (is_powerof2(mask))
|
|
{
|
|
OP2(SLJIT_OR, TMP1, 0, TMP1, 0, SLJIT_IMM, mask);
|
|
CMPTO(SLJIT_NOT_EQUAL, TMP1, 0, SLJIT_IMM, chars[offset * MAX_DIFF_CHARS + 1] | mask, start);
|
|
}
|
|
else
|
|
{
|
|
match = CMP(SLJIT_EQUAL, TMP1, 0, SLJIT_IMM, chars[offset * MAX_DIFF_CHARS + 1]);
|
|
CMPTO(SLJIT_NOT_EQUAL, TMP1, 0, SLJIT_IMM, chars[offset * MAX_DIFF_CHARS + 2], start);
|
|
JUMPHERE(match);
|
|
}
|
|
}
|
|
}
|
|
|
|
#if defined SUPPORT_UNICODE && PCRE2_CODE_UNIT_WIDTH != 32
|
|
if (common->utf && offset != 0)
|
|
{
|
|
if (offset < 0)
|
|
{
|
|
OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), 0);
|
|
OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1));
|
|
}
|
|
else
|
|
OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(-1));
|
|
#if PCRE2_CODE_UNIT_WIDTH == 8
|
|
OP2(SLJIT_AND, TMP1, 0, TMP1, 0, SLJIT_IMM, 0xc0);
|
|
CMPTO(SLJIT_EQUAL, TMP1, 0, SLJIT_IMM, 0x80, start);
|
|
#elif PCRE2_CODE_UNIT_WIDTH == 16
|
|
OP2(SLJIT_AND, TMP1, 0, TMP1, 0, SLJIT_IMM, 0xfc00);
|
|
CMPTO(SLJIT_EQUAL, TMP1, 0, SLJIT_IMM, 0xdc00, start);
|
|
#else
|
|
#error "Unknown code width"
|
|
#endif
|
|
if (offset < 0)
|
|
OP2(SLJIT_SUB, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1));
|
|
}
|
|
#endif
|
|
|
|
if (offset >= 0)
|
|
OP2(SLJIT_SUB, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1));
|
|
|
|
JUMPHERE(quit);
|
|
|
|
if (common->match_end_ptr != 0)
|
|
{
|
|
if (range_right >= 0)
|
|
OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_SP), common->match_end_ptr);
|
|
OP1(SLJIT_MOV, STR_END, 0, TMP3, 0);
|
|
if (range_right >= 0)
|
|
{
|
|
quit = CMP(SLJIT_LESS_EQUAL, STR_PTR, 0, TMP1, 0);
|
|
OP1(SLJIT_MOV, STR_PTR, 0, TMP1, 0);
|
|
JUMPHERE(quit);
|
|
}
|
|
}
|
|
else
|
|
OP2(SLJIT_ADD, STR_END, 0, STR_END, 0, SLJIT_IMM, IN_UCHARS(max));
|
|
return TRUE;
|
|
}
|
|
|
|
#undef MAX_N_CHARS
|
|
|
|
static SLJIT_INLINE void fast_forward_first_char(compiler_common *common, PCRE2_UCHAR first_char, BOOL caseless)
|
|
{
|
|
PCRE2_UCHAR oc;
|
|
|
|
oc = first_char;
|
|
if (caseless)
|
|
{
|
|
oc = TABLE_GET(first_char, common->fcc, first_char);
|
|
#if defined SUPPORT_UNICODE && PCRE2_CODE_UNIT_WIDTH != 8
|
|
if (first_char > 127 && common->utf)
|
|
oc = UCD_OTHERCASE(first_char);
|
|
#endif
|
|
}
|
|
|
|
fast_forward_first_char2(common, first_char, oc, 0);
|
|
}
|
|
|
|
static SLJIT_INLINE void fast_forward_newline(compiler_common *common)
|
|
{
|
|
DEFINE_COMPILER;
|
|
struct sljit_label *loop;
|
|
struct sljit_jump *lastchar;
|
|
struct sljit_jump *firstchar;
|
|
struct sljit_jump *quit;
|
|
struct sljit_jump *foundcr = NULL;
|
|
struct sljit_jump *notfoundnl;
|
|
jump_list *newline = NULL;
|
|
|
|
if (common->match_end_ptr != 0)
|
|
{
|
|
OP1(SLJIT_MOV, TMP3, 0, STR_END, 0);
|
|
OP1(SLJIT_MOV, STR_END, 0, SLJIT_MEM1(SLJIT_SP), common->match_end_ptr);
|
|
}
|
|
|
|
if (common->nltype == NLTYPE_FIXED && common->newline > 255)
|
|
{
|
|
lastchar = CMP(SLJIT_GREATER_EQUAL, STR_PTR, 0, STR_END, 0);
|
|
OP1(SLJIT_MOV, TMP1, 0, ARGUMENTS, 0);
|
|
OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(TMP1), SLJIT_OFFSETOF(jit_arguments, str));
|
|
OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(TMP1), SLJIT_OFFSETOF(jit_arguments, begin));
|
|
firstchar = CMP(SLJIT_LESS_EQUAL, STR_PTR, 0, TMP2, 0);
|
|
|
|
OP2(SLJIT_ADD, TMP1, 0, TMP1, 0, SLJIT_IMM, IN_UCHARS(2));
|
|
OP2(SLJIT_SUB | SLJIT_SET_U, SLJIT_UNUSED, 0, STR_PTR, 0, TMP1, 0);
|
|
OP_FLAGS(SLJIT_MOV, TMP2, 0, SLJIT_UNUSED, 0, SLJIT_GREATER_EQUAL);
|
|
#if PCRE2_CODE_UNIT_WIDTH == 16 || PCRE2_CODE_UNIT_WIDTH == 32
|
|
OP2(SLJIT_SHL, TMP2, 0, TMP2, 0, SLJIT_IMM, UCHAR_SHIFT);
|
|
#endif
|
|
OP2(SLJIT_SUB, STR_PTR, 0, STR_PTR, 0, TMP2, 0);
|
|
|
|
loop = LABEL();
|
|
OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1));
|
|
quit = CMP(SLJIT_GREATER_EQUAL, STR_PTR, 0, STR_END, 0);
|
|
OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(-2));
|
|
OP1(MOV_UCHAR, TMP2, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(-1));
|
|
CMPTO(SLJIT_NOT_EQUAL, TMP1, 0, SLJIT_IMM, (common->newline >> 8) & 0xff, loop);
|
|
CMPTO(SLJIT_NOT_EQUAL, TMP2, 0, SLJIT_IMM, common->newline & 0xff, loop);
|
|
|
|
JUMPHERE(quit);
|
|
JUMPHERE(firstchar);
|
|
JUMPHERE(lastchar);
|
|
|
|
if (common->match_end_ptr != 0)
|
|
OP1(SLJIT_MOV, STR_END, 0, TMP3, 0);
|
|
return;
|
|
}
|
|
|
|
OP1(SLJIT_MOV, TMP1, 0, ARGUMENTS, 0);
|
|
OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(TMP1), SLJIT_OFFSETOF(jit_arguments, str));
|
|
firstchar = CMP(SLJIT_LESS_EQUAL, STR_PTR, 0, TMP2, 0);
|
|
skip_char_back(common);
|
|
|
|
loop = LABEL();
|
|
common->ff_newline_shortcut = loop;
|
|
|
|
read_char_range(common, common->nlmin, common->nlmax, TRUE);
|
|
lastchar = CMP(SLJIT_GREATER_EQUAL, STR_PTR, 0, STR_END, 0);
|
|
if (common->nltype == NLTYPE_ANY || common->nltype == NLTYPE_ANYCRLF)
|
|
foundcr = CMP(SLJIT_EQUAL, TMP1, 0, SLJIT_IMM, CHAR_CR);
|
|
check_newlinechar(common, common->nltype, &newline, FALSE);
|
|
set_jumps(newline, loop);
|
|
|
|
if (common->nltype == NLTYPE_ANY || common->nltype == NLTYPE_ANYCRLF)
|
|
{
|
|
quit = JUMP(SLJIT_JUMP);
|
|
JUMPHERE(foundcr);
|
|
notfoundnl = CMP(SLJIT_GREATER_EQUAL, STR_PTR, 0, STR_END, 0);
|
|
OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), 0);
|
|
OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, CHAR_NL);
|
|
OP_FLAGS(SLJIT_MOV, TMP1, 0, SLJIT_UNUSED, 0, SLJIT_EQUAL);
|
|
#if PCRE2_CODE_UNIT_WIDTH == 16 || PCRE2_CODE_UNIT_WIDTH == 32
|
|
OP2(SLJIT_SHL, TMP1, 0, TMP1, 0, SLJIT_IMM, UCHAR_SHIFT);
|
|
#endif
|
|
OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, TMP1, 0);
|
|
JUMPHERE(notfoundnl);
|
|
JUMPHERE(quit);
|
|
}
|
|
JUMPHERE(lastchar);
|
|
JUMPHERE(firstchar);
|
|
|
|
if (common->match_end_ptr != 0)
|
|
OP1(SLJIT_MOV, STR_END, 0, TMP3, 0);
|
|
}
|
|
|
|
static BOOL check_class_ranges(compiler_common *common, const sljit_u8 *bits, BOOL nclass, BOOL invert, jump_list **backtracks);
|
|
|
|
static SLJIT_INLINE void fast_forward_start_bits(compiler_common *common, const sljit_u8 *start_bits)
|
|
{
|
|
DEFINE_COMPILER;
|
|
struct sljit_label *start;
|
|
struct sljit_jump *quit;
|
|
struct sljit_jump *found = NULL;
|
|
jump_list *matches = NULL;
|
|
#if PCRE2_CODE_UNIT_WIDTH != 8
|
|
struct sljit_jump *jump;
|
|
#endif
|
|
|
|
if (common->match_end_ptr != 0)
|
|
{
|
|
OP1(SLJIT_MOV, RETURN_ADDR, 0, STR_END, 0);
|
|
OP1(SLJIT_MOV, STR_END, 0, SLJIT_MEM1(SLJIT_SP), common->match_end_ptr);
|
|
}
|
|
|
|
start = LABEL();
|
|
quit = CMP(SLJIT_GREATER_EQUAL, STR_PTR, 0, STR_END, 0);
|
|
OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), 0);
|
|
#ifdef SUPPORT_UNICODE
|
|
if (common->utf)
|
|
OP1(SLJIT_MOV, TMP3, 0, TMP1, 0);
|
|
#endif
|
|
|
|
if (!check_class_ranges(common, start_bits, (start_bits[31] & 0x80) != 0, TRUE, &matches))
|
|
{
|
|
#if PCRE2_CODE_UNIT_WIDTH != 8
|
|
jump = CMP(SLJIT_LESS, TMP1, 0, SLJIT_IMM, 255);
|
|
OP1(SLJIT_MOV, TMP1, 0, SLJIT_IMM, 255);
|
|
JUMPHERE(jump);
|
|
#endif
|
|
OP2(SLJIT_AND, TMP2, 0, TMP1, 0, SLJIT_IMM, 0x7);
|
|
OP2(SLJIT_LSHR, TMP1, 0, TMP1, 0, SLJIT_IMM, 3);
|
|
OP1(SLJIT_MOV_U8, TMP1, 0, SLJIT_MEM1(TMP1), (sljit_sw)start_bits);
|
|
OP2(SLJIT_SHL, TMP2, 0, SLJIT_IMM, 1, TMP2, 0);
|
|
OP2(SLJIT_AND | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, TMP2, 0);
|
|
found = JUMP(SLJIT_NOT_ZERO);
|
|
}
|
|
|
|
#ifdef SUPPORT_UNICODE
|
|
if (common->utf)
|
|
OP1(SLJIT_MOV, TMP1, 0, TMP3, 0);
|
|
#endif
|
|
OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1));
|
|
#ifdef SUPPORT_UNICODE
|
|
#if PCRE2_CODE_UNIT_WIDTH == 8
|
|
if (common->utf)
|
|
{
|
|
CMPTO(SLJIT_LESS, TMP1, 0, SLJIT_IMM, 0xc0, start);
|
|
OP1(SLJIT_MOV_U8, TMP1, 0, SLJIT_MEM1(TMP1), (sljit_sw)PRIV(utf8_table4) - 0xc0);
|
|
OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, TMP1, 0);
|
|
}
|
|
#elif PCRE2_CODE_UNIT_WIDTH == 16
|
|
if (common->utf)
|
|
{
|
|
CMPTO(SLJIT_LESS, TMP1, 0, SLJIT_IMM, 0xd800, start);
|
|
OP2(SLJIT_AND, TMP1, 0, TMP1, 0, SLJIT_IMM, 0xfc00);
|
|
OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, 0xd800);
|
|
OP_FLAGS(SLJIT_MOV, TMP1, 0, SLJIT_UNUSED, 0, SLJIT_EQUAL);
|
|
OP2(SLJIT_SHL, TMP1, 0, TMP1, 0, SLJIT_IMM, 1);
|
|
OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, TMP1, 0);
|
|
}
|
|
#endif /* PCRE2_CODE_UNIT_WIDTH == [8|16] */
|
|
#endif /* SUPPORT_UNICODE */
|
|
JUMPTO(SLJIT_JUMP, start);
|
|
if (found != NULL)
|
|
JUMPHERE(found);
|
|
if (matches != NULL)
|
|
set_jumps(matches, LABEL());
|
|
JUMPHERE(quit);
|
|
|
|
if (common->match_end_ptr != 0)
|
|
OP1(SLJIT_MOV, STR_END, 0, RETURN_ADDR, 0);
|
|
}
|
|
|
|
static SLJIT_INLINE struct sljit_jump *search_requested_char(compiler_common *common, PCRE2_UCHAR req_char, BOOL caseless, BOOL has_firstchar)
|
|
{
|
|
DEFINE_COMPILER;
|
|
struct sljit_label *loop;
|
|
struct sljit_jump *toolong;
|
|
struct sljit_jump *alreadyfound;
|
|
struct sljit_jump *found;
|
|
struct sljit_jump *foundoc = NULL;
|
|
struct sljit_jump *notfound;
|
|
sljit_u32 oc, bit;
|
|
|
|
SLJIT_ASSERT(common->req_char_ptr != 0);
|
|
OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(SLJIT_SP), common->req_char_ptr);
|
|
OP2(SLJIT_ADD, TMP1, 0, STR_PTR, 0, SLJIT_IMM, REQ_CU_MAX);
|
|
toolong = CMP(SLJIT_LESS, TMP1, 0, STR_END, 0);
|
|
alreadyfound = CMP(SLJIT_LESS, STR_PTR, 0, TMP2, 0);
|
|
|
|
if (has_firstchar)
|
|
OP2(SLJIT_ADD, TMP1, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1));
|
|
else
|
|
OP1(SLJIT_MOV, TMP1, 0, STR_PTR, 0);
|
|
|
|
loop = LABEL();
|
|
notfound = CMP(SLJIT_GREATER_EQUAL, TMP1, 0, STR_END, 0);
|
|
|
|
OP1(MOV_UCHAR, TMP2, 0, SLJIT_MEM1(TMP1), 0);
|
|
oc = req_char;
|
|
if (caseless)
|
|
{
|
|
oc = TABLE_GET(req_char, common->fcc, req_char);
|
|
#if defined SUPPORT_UNICODE && PCRE2_CODE_UNIT_WIDTH != 8
|
|
if (req_char > 127 && common->utf)
|
|
oc = UCD_OTHERCASE(req_char);
|
|
#endif
|
|
}
|
|
if (req_char == oc)
|
|
found = CMP(SLJIT_EQUAL, TMP2, 0, SLJIT_IMM, req_char);
|
|
else
|
|
{
|
|
bit = req_char ^ oc;
|
|
if (is_powerof2(bit))
|
|
{
|
|
OP2(SLJIT_OR, TMP2, 0, TMP2, 0, SLJIT_IMM, bit);
|
|
found = CMP(SLJIT_EQUAL, TMP2, 0, SLJIT_IMM, req_char | bit);
|
|
}
|
|
else
|
|
{
|
|
found = CMP(SLJIT_EQUAL, TMP2, 0, SLJIT_IMM, req_char);
|
|
foundoc = CMP(SLJIT_EQUAL, TMP2, 0, SLJIT_IMM, oc);
|
|
}
|
|
}
|
|
OP2(SLJIT_ADD, TMP1, 0, TMP1, 0, SLJIT_IMM, IN_UCHARS(1));
|
|
JUMPTO(SLJIT_JUMP, loop);
|
|
|
|
JUMPHERE(found);
|
|
if (foundoc)
|
|
JUMPHERE(foundoc);
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), common->req_char_ptr, TMP1, 0);
|
|
JUMPHERE(alreadyfound);
|
|
JUMPHERE(toolong);
|
|
return notfound;
|
|
}
|
|
|
|
static void do_revertframes(compiler_common *common)
|
|
{
|
|
DEFINE_COMPILER;
|
|
struct sljit_jump *jump;
|
|
struct sljit_label *mainloop;
|
|
|
|
sljit_emit_fast_enter(compiler, RETURN_ADDR, 0);
|
|
OP1(SLJIT_MOV, TMP1, 0, STACK_TOP, 0);
|
|
GET_LOCAL_BASE(TMP3, 0, 0);
|
|
|
|
/* Drop frames until we reach STACK_TOP. */
|
|
mainloop = LABEL();
|
|
OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(TMP1), 0);
|
|
OP2(SLJIT_SUB | SLJIT_SET_S, SLJIT_UNUSED, 0, TMP2, 0, SLJIT_IMM, 0);
|
|
jump = JUMP(SLJIT_SIG_LESS_EQUAL);
|
|
|
|
OP2(SLJIT_ADD, TMP2, 0, TMP2, 0, TMP3, 0);
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(TMP2), 0, SLJIT_MEM1(TMP1), sizeof(sljit_sw));
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(TMP2), sizeof(sljit_sw), SLJIT_MEM1(TMP1), 2 * sizeof(sljit_sw));
|
|
OP2(SLJIT_ADD, TMP1, 0, TMP1, 0, SLJIT_IMM, 3 * sizeof(sljit_sw));
|
|
JUMPTO(SLJIT_JUMP, mainloop);
|
|
|
|
JUMPHERE(jump);
|
|
jump = JUMP(SLJIT_SIG_LESS);
|
|
/* End of dropping frames. */
|
|
sljit_emit_fast_return(compiler, RETURN_ADDR, 0);
|
|
|
|
JUMPHERE(jump);
|
|
OP1(SLJIT_NEG, TMP2, 0, TMP2, 0);
|
|
OP2(SLJIT_ADD, TMP2, 0, TMP2, 0, TMP3, 0);
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(TMP2), 0, SLJIT_MEM1(TMP1), sizeof(sljit_sw));
|
|
OP2(SLJIT_ADD, TMP1, 0, TMP1, 0, SLJIT_IMM, 2 * sizeof(sljit_sw));
|
|
JUMPTO(SLJIT_JUMP, mainloop);
|
|
}
|
|
|
|
static void check_wordboundary(compiler_common *common)
|
|
{
|
|
DEFINE_COMPILER;
|
|
struct sljit_jump *skipread;
|
|
jump_list *skipread_list = NULL;
|
|
#if PCRE2_CODE_UNIT_WIDTH != 8 || defined SUPPORT_UNICODE
|
|
struct sljit_jump *jump;
|
|
#endif
|
|
|
|
SLJIT_COMPILE_ASSERT(ctype_word == 0x10, ctype_word_must_be_16);
|
|
|
|
sljit_emit_fast_enter(compiler, SLJIT_MEM1(SLJIT_SP), LOCALS0);
|
|
/* Get type of the previous char, and put it to LOCALS1. */
|
|
OP1(SLJIT_MOV, TMP1, 0, ARGUMENTS, 0);
|
|
OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(TMP1), SLJIT_OFFSETOF(jit_arguments, begin));
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), LOCALS1, SLJIT_IMM, 0);
|
|
skipread = CMP(SLJIT_LESS_EQUAL, STR_PTR, 0, TMP1, 0);
|
|
skip_char_back(common);
|
|
check_start_used_ptr(common);
|
|
read_char(common);
|
|
|
|
/* Testing char type. */
|
|
#ifdef SUPPORT_UNICODE
|
|
if (common->use_ucp)
|
|
{
|
|
OP1(SLJIT_MOV, TMP2, 0, SLJIT_IMM, 1);
|
|
jump = CMP(SLJIT_EQUAL, TMP1, 0, SLJIT_IMM, CHAR_UNDERSCORE);
|
|
add_jump(compiler, &common->getucd, JUMP(SLJIT_FAST_CALL));
|
|
OP2(SLJIT_SUB, TMP1, 0, TMP1, 0, SLJIT_IMM, ucp_Ll);
|
|
OP2(SLJIT_SUB | SLJIT_SET_U, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, ucp_Lu - ucp_Ll);
|
|
OP_FLAGS(SLJIT_MOV, TMP2, 0, SLJIT_UNUSED, 0, SLJIT_LESS_EQUAL);
|
|
OP2(SLJIT_SUB, TMP1, 0, TMP1, 0, SLJIT_IMM, ucp_Nd - ucp_Ll);
|
|
OP2(SLJIT_SUB | SLJIT_SET_U, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, ucp_No - ucp_Nd);
|
|
OP_FLAGS(SLJIT_OR, TMP2, 0, TMP2, 0, SLJIT_LESS_EQUAL);
|
|
JUMPHERE(jump);
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), LOCALS1, TMP2, 0);
|
|
}
|
|
else
|
|
#endif
|
|
{
|
|
#if PCRE2_CODE_UNIT_WIDTH != 8
|
|
jump = CMP(SLJIT_GREATER, TMP1, 0, SLJIT_IMM, 255);
|
|
#elif defined SUPPORT_UNICODE
|
|
/* Here LOCALS1 has already been zeroed. */
|
|
jump = NULL;
|
|
if (common->utf)
|
|
jump = CMP(SLJIT_GREATER, TMP1, 0, SLJIT_IMM, 255);
|
|
#endif /* PCRE2_CODE_UNIT_WIDTH == 8 */
|
|
OP1(SLJIT_MOV_U8, TMP1, 0, SLJIT_MEM1(TMP1), common->ctypes);
|
|
OP2(SLJIT_LSHR, TMP1, 0, TMP1, 0, SLJIT_IMM, 4 /* ctype_word */);
|
|
OP2(SLJIT_AND, TMP1, 0, TMP1, 0, SLJIT_IMM, 1);
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), LOCALS1, TMP1, 0);
|
|
#if PCRE2_CODE_UNIT_WIDTH != 8
|
|
JUMPHERE(jump);
|
|
#elif defined SUPPORT_UNICODE
|
|
if (jump != NULL)
|
|
JUMPHERE(jump);
|
|
#endif /* PCRE2_CODE_UNIT_WIDTH == 8 */
|
|
}
|
|
JUMPHERE(skipread);
|
|
|
|
OP1(SLJIT_MOV, TMP2, 0, SLJIT_IMM, 0);
|
|
check_str_end(common, &skipread_list);
|
|
peek_char(common, READ_CHAR_MAX);
|
|
|
|
/* Testing char type. This is a code duplication. */
|
|
#ifdef SUPPORT_UNICODE
|
|
if (common->use_ucp)
|
|
{
|
|
OP1(SLJIT_MOV, TMP2, 0, SLJIT_IMM, 1);
|
|
jump = CMP(SLJIT_EQUAL, TMP1, 0, SLJIT_IMM, CHAR_UNDERSCORE);
|
|
add_jump(compiler, &common->getucd, JUMP(SLJIT_FAST_CALL));
|
|
OP2(SLJIT_SUB, TMP1, 0, TMP1, 0, SLJIT_IMM, ucp_Ll);
|
|
OP2(SLJIT_SUB | SLJIT_SET_U, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, ucp_Lu - ucp_Ll);
|
|
OP_FLAGS(SLJIT_MOV, TMP2, 0, SLJIT_UNUSED, 0, SLJIT_LESS_EQUAL);
|
|
OP2(SLJIT_SUB, TMP1, 0, TMP1, 0, SLJIT_IMM, ucp_Nd - ucp_Ll);
|
|
OP2(SLJIT_SUB | SLJIT_SET_U, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, ucp_No - ucp_Nd);
|
|
OP_FLAGS(SLJIT_OR, TMP2, 0, TMP2, 0, SLJIT_LESS_EQUAL);
|
|
JUMPHERE(jump);
|
|
}
|
|
else
|
|
#endif
|
|
{
|
|
#if PCRE2_CODE_UNIT_WIDTH != 8
|
|
/* TMP2 may be destroyed by peek_char. */
|
|
OP1(SLJIT_MOV, TMP2, 0, SLJIT_IMM, 0);
|
|
jump = CMP(SLJIT_GREATER, TMP1, 0, SLJIT_IMM, 255);
|
|
#elif defined SUPPORT_UNICODE
|
|
OP1(SLJIT_MOV, TMP2, 0, SLJIT_IMM, 0);
|
|
jump = NULL;
|
|
if (common->utf)
|
|
jump = CMP(SLJIT_GREATER, TMP1, 0, SLJIT_IMM, 255);
|
|
#endif
|
|
OP1(SLJIT_MOV_U8, TMP2, 0, SLJIT_MEM1(TMP1), common->ctypes);
|
|
OP2(SLJIT_LSHR, TMP2, 0, TMP2, 0, SLJIT_IMM, 4 /* ctype_word */);
|
|
OP2(SLJIT_AND, TMP2, 0, TMP2, 0, SLJIT_IMM, 1);
|
|
#if PCRE2_CODE_UNIT_WIDTH != 8
|
|
JUMPHERE(jump);
|
|
#elif defined SUPPORT_UNICODE
|
|
if (jump != NULL)
|
|
JUMPHERE(jump);
|
|
#endif /* PCRE2_CODE_UNIT_WIDTH == 8 */
|
|
}
|
|
set_jumps(skipread_list, LABEL());
|
|
|
|
OP2(SLJIT_XOR | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP2, 0, SLJIT_MEM1(SLJIT_SP), LOCALS1);
|
|
sljit_emit_fast_return(compiler, SLJIT_MEM1(SLJIT_SP), LOCALS0);
|
|
}
|
|
|
|
static BOOL check_class_ranges(compiler_common *common, const sljit_u8 *bits, BOOL nclass, BOOL invert, jump_list **backtracks)
|
|
{
|
|
/* May destroy TMP1. */
|
|
DEFINE_COMPILER;
|
|
int ranges[MAX_RANGE_SIZE];
|
|
sljit_u8 bit, cbit, all;
|
|
int i, byte, length = 0;
|
|
|
|
bit = bits[0] & 0x1;
|
|
/* All bits will be zero or one (since bit is zero or one). */
|
|
all = -bit;
|
|
|
|
for (i = 0; i < 256; )
|
|
{
|
|
byte = i >> 3;
|
|
if ((i & 0x7) == 0 && bits[byte] == all)
|
|
i += 8;
|
|
else
|
|
{
|
|
cbit = (bits[byte] >> (i & 0x7)) & 0x1;
|
|
if (cbit != bit)
|
|
{
|
|
if (length >= MAX_RANGE_SIZE)
|
|
return FALSE;
|
|
ranges[length] = i;
|
|
length++;
|
|
bit = cbit;
|
|
all = -cbit;
|
|
}
|
|
i++;
|
|
}
|
|
}
|
|
|
|
if (((bit == 0) && nclass) || ((bit == 1) && !nclass))
|
|
{
|
|
if (length >= MAX_RANGE_SIZE)
|
|
return FALSE;
|
|
ranges[length] = 256;
|
|
length++;
|
|
}
|
|
|
|
if (length < 0 || length > 4)
|
|
return FALSE;
|
|
|
|
bit = bits[0] & 0x1;
|
|
if (invert) bit ^= 0x1;
|
|
|
|
/* No character is accepted. */
|
|
if (length == 0 && bit == 0)
|
|
add_jump(compiler, backtracks, JUMP(SLJIT_JUMP));
|
|
|
|
switch(length)
|
|
{
|
|
case 0:
|
|
/* When bit != 0, all characters are accepted. */
|
|
return TRUE;
|
|
|
|
case 1:
|
|
add_jump(compiler, backtracks, CMP(bit == 0 ? SLJIT_LESS : SLJIT_GREATER_EQUAL, TMP1, 0, SLJIT_IMM, ranges[0]));
|
|
return TRUE;
|
|
|
|
case 2:
|
|
if (ranges[0] + 1 != ranges[1])
|
|
{
|
|
OP2(SLJIT_SUB, TMP1, 0, TMP1, 0, SLJIT_IMM, ranges[0]);
|
|
add_jump(compiler, backtracks, CMP(bit != 0 ? SLJIT_LESS : SLJIT_GREATER_EQUAL, TMP1, 0, SLJIT_IMM, ranges[1] - ranges[0]));
|
|
}
|
|
else
|
|
add_jump(compiler, backtracks, CMP(bit != 0 ? SLJIT_EQUAL : SLJIT_NOT_EQUAL, TMP1, 0, SLJIT_IMM, ranges[0]));
|
|
return TRUE;
|
|
|
|
case 3:
|
|
if (bit != 0)
|
|
{
|
|
add_jump(compiler, backtracks, CMP(SLJIT_GREATER_EQUAL, TMP1, 0, SLJIT_IMM, ranges[2]));
|
|
if (ranges[0] + 1 != ranges[1])
|
|
{
|
|
OP2(SLJIT_SUB, TMP1, 0, TMP1, 0, SLJIT_IMM, ranges[0]);
|
|
add_jump(compiler, backtracks, CMP(SLJIT_LESS, TMP1, 0, SLJIT_IMM, ranges[1] - ranges[0]));
|
|
}
|
|
else
|
|
add_jump(compiler, backtracks, CMP(SLJIT_EQUAL, TMP1, 0, SLJIT_IMM, ranges[0]));
|
|
return TRUE;
|
|
}
|
|
|
|
add_jump(compiler, backtracks, CMP(SLJIT_LESS, TMP1, 0, SLJIT_IMM, ranges[0]));
|
|
if (ranges[1] + 1 != ranges[2])
|
|
{
|
|
OP2(SLJIT_SUB, TMP1, 0, TMP1, 0, SLJIT_IMM, ranges[1]);
|
|
add_jump(compiler, backtracks, CMP(SLJIT_LESS, TMP1, 0, SLJIT_IMM, ranges[2] - ranges[1]));
|
|
}
|
|
else
|
|
add_jump(compiler, backtracks, CMP(SLJIT_EQUAL, TMP1, 0, SLJIT_IMM, ranges[1]));
|
|
return TRUE;
|
|
|
|
case 4:
|
|
if ((ranges[1] - ranges[0]) == (ranges[3] - ranges[2])
|
|
&& (ranges[0] | (ranges[2] - ranges[0])) == ranges[2]
|
|
&& (ranges[1] & (ranges[2] - ranges[0])) == 0
|
|
&& is_powerof2(ranges[2] - ranges[0]))
|
|
{
|
|
SLJIT_ASSERT((ranges[0] & (ranges[2] - ranges[0])) == 0 && (ranges[2] & ranges[3] & (ranges[2] - ranges[0])) != 0);
|
|
OP2(SLJIT_OR, TMP1, 0, TMP1, 0, SLJIT_IMM, ranges[2] - ranges[0]);
|
|
if (ranges[2] + 1 != ranges[3])
|
|
{
|
|
OP2(SLJIT_SUB, TMP1, 0, TMP1, 0, SLJIT_IMM, ranges[2]);
|
|
add_jump(compiler, backtracks, CMP(bit != 0 ? SLJIT_LESS : SLJIT_GREATER_EQUAL, TMP1, 0, SLJIT_IMM, ranges[3] - ranges[2]));
|
|
}
|
|
else
|
|
add_jump(compiler, backtracks, CMP(bit != 0 ? SLJIT_EQUAL : SLJIT_NOT_EQUAL, TMP1, 0, SLJIT_IMM, ranges[2]));
|
|
return TRUE;
|
|
}
|
|
|
|
if (bit != 0)
|
|
{
|
|
i = 0;
|
|
if (ranges[0] + 1 != ranges[1])
|
|
{
|
|
OP2(SLJIT_SUB, TMP1, 0, TMP1, 0, SLJIT_IMM, ranges[0]);
|
|
add_jump(compiler, backtracks, CMP(SLJIT_LESS, TMP1, 0, SLJIT_IMM, ranges[1] - ranges[0]));
|
|
i = ranges[0];
|
|
}
|
|
else
|
|
add_jump(compiler, backtracks, CMP(SLJIT_EQUAL, TMP1, 0, SLJIT_IMM, ranges[0]));
|
|
|
|
if (ranges[2] + 1 != ranges[3])
|
|
{
|
|
OP2(SLJIT_SUB, TMP1, 0, TMP1, 0, SLJIT_IMM, ranges[2] - i);
|
|
add_jump(compiler, backtracks, CMP(SLJIT_LESS, TMP1, 0, SLJIT_IMM, ranges[3] - ranges[2]));
|
|
}
|
|
else
|
|
add_jump(compiler, backtracks, CMP(SLJIT_EQUAL, TMP1, 0, SLJIT_IMM, ranges[2] - i));
|
|
return TRUE;
|
|
}
|
|
|
|
OP2(SLJIT_SUB, TMP1, 0, TMP1, 0, SLJIT_IMM, ranges[0]);
|
|
add_jump(compiler, backtracks, CMP(SLJIT_GREATER_EQUAL, TMP1, 0, SLJIT_IMM, ranges[3] - ranges[0]));
|
|
if (ranges[1] + 1 != ranges[2])
|
|
{
|
|
OP2(SLJIT_SUB, TMP1, 0, TMP1, 0, SLJIT_IMM, ranges[1] - ranges[0]);
|
|
add_jump(compiler, backtracks, CMP(SLJIT_LESS, TMP1, 0, SLJIT_IMM, ranges[2] - ranges[1]));
|
|
}
|
|
else
|
|
add_jump(compiler, backtracks, CMP(SLJIT_EQUAL, TMP1, 0, SLJIT_IMM, ranges[1] - ranges[0]));
|
|
return TRUE;
|
|
|
|
default:
|
|
SLJIT_ASSERT_STOP();
|
|
return FALSE;
|
|
}
|
|
}
|
|
|
|
static void check_anynewline(compiler_common *common)
|
|
{
|
|
/* Check whether TMP1 contains a newline character. TMP2 destroyed. */
|
|
DEFINE_COMPILER;
|
|
|
|
sljit_emit_fast_enter(compiler, RETURN_ADDR, 0);
|
|
|
|
OP2(SLJIT_SUB, TMP1, 0, TMP1, 0, SLJIT_IMM, 0x0a);
|
|
OP2(SLJIT_SUB | SLJIT_SET_U, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, 0x0d - 0x0a);
|
|
OP_FLAGS(SLJIT_MOV, TMP2, 0, SLJIT_UNUSED, 0, SLJIT_LESS_EQUAL);
|
|
OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, 0x85 - 0x0a);
|
|
#if defined SUPPORT_UNICODE || PCRE2_CODE_UNIT_WIDTH == 16 || PCRE2_CODE_UNIT_WIDTH == 32
|
|
#if PCRE2_CODE_UNIT_WIDTH == 8
|
|
if (common->utf)
|
|
{
|
|
#endif
|
|
OP_FLAGS(SLJIT_OR, TMP2, 0, TMP2, 0, SLJIT_EQUAL);
|
|
OP2(SLJIT_OR, TMP1, 0, TMP1, 0, SLJIT_IMM, 0x1);
|
|
OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, 0x2029 - 0x0a);
|
|
#if PCRE2_CODE_UNIT_WIDTH == 8
|
|
}
|
|
#endif
|
|
#endif /* SUPPORT_UNICODE || PCRE2_CODE_UNIT_WIDTH == [16|32] */
|
|
OP_FLAGS(SLJIT_OR | SLJIT_SET_E, TMP2, 0, TMP2, 0, SLJIT_EQUAL);
|
|
sljit_emit_fast_return(compiler, RETURN_ADDR, 0);
|
|
}
|
|
|
|
static void check_hspace(compiler_common *common)
|
|
{
|
|
/* Check whether TMP1 contains a newline character. TMP2 destroyed. */
|
|
DEFINE_COMPILER;
|
|
|
|
sljit_emit_fast_enter(compiler, RETURN_ADDR, 0);
|
|
|
|
OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, 0x09);
|
|
OP_FLAGS(SLJIT_MOV, TMP2, 0, SLJIT_UNUSED, 0, SLJIT_EQUAL);
|
|
OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, 0x20);
|
|
OP_FLAGS(SLJIT_OR, TMP2, 0, TMP2, 0, SLJIT_EQUAL);
|
|
OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, 0xa0);
|
|
#if defined SUPPORT_UNICODE || PCRE2_CODE_UNIT_WIDTH == 16 || PCRE2_CODE_UNIT_WIDTH == 32
|
|
#if PCRE2_CODE_UNIT_WIDTH == 8
|
|
if (common->utf)
|
|
{
|
|
#endif
|
|
OP_FLAGS(SLJIT_OR, TMP2, 0, TMP2, 0, SLJIT_EQUAL);
|
|
OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, 0x1680);
|
|
OP_FLAGS(SLJIT_OR, TMP2, 0, TMP2, 0, SLJIT_EQUAL);
|
|
OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, 0x180e);
|
|
OP_FLAGS(SLJIT_OR, TMP2, 0, TMP2, 0, SLJIT_EQUAL);
|
|
OP2(SLJIT_SUB, TMP1, 0, TMP1, 0, SLJIT_IMM, 0x2000);
|
|
OP2(SLJIT_SUB | SLJIT_SET_U, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, 0x200A - 0x2000);
|
|
OP_FLAGS(SLJIT_OR, TMP2, 0, TMP2, 0, SLJIT_LESS_EQUAL);
|
|
OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, 0x202f - 0x2000);
|
|
OP_FLAGS(SLJIT_OR, TMP2, 0, TMP2, 0, SLJIT_EQUAL);
|
|
OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, 0x205f - 0x2000);
|
|
OP_FLAGS(SLJIT_OR, TMP2, 0, TMP2, 0, SLJIT_EQUAL);
|
|
OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, 0x3000 - 0x2000);
|
|
#if PCRE2_CODE_UNIT_WIDTH == 8
|
|
}
|
|
#endif
|
|
#endif /* SUPPORT_UNICODE || PCRE2_CODE_UNIT_WIDTH == [16|32] */
|
|
OP_FLAGS(SLJIT_OR | SLJIT_SET_E, TMP2, 0, TMP2, 0, SLJIT_EQUAL);
|
|
|
|
sljit_emit_fast_return(compiler, RETURN_ADDR, 0);
|
|
}
|
|
|
|
static void check_vspace(compiler_common *common)
|
|
{
|
|
/* Check whether TMP1 contains a newline character. TMP2 destroyed. */
|
|
DEFINE_COMPILER;
|
|
|
|
sljit_emit_fast_enter(compiler, RETURN_ADDR, 0);
|
|
|
|
OP2(SLJIT_SUB, TMP1, 0, TMP1, 0, SLJIT_IMM, 0x0a);
|
|
OP2(SLJIT_SUB | SLJIT_SET_U, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, 0x0d - 0x0a);
|
|
OP_FLAGS(SLJIT_MOV, TMP2, 0, SLJIT_UNUSED, 0, SLJIT_LESS_EQUAL);
|
|
OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, 0x85 - 0x0a);
|
|
#if defined SUPPORT_UNICODE || PCRE2_CODE_UNIT_WIDTH == 16 || PCRE2_CODE_UNIT_WIDTH == 32
|
|
#if PCRE2_CODE_UNIT_WIDTH == 8
|
|
if (common->utf)
|
|
{
|
|
#endif
|
|
OP_FLAGS(SLJIT_OR | SLJIT_SET_E, TMP2, 0, TMP2, 0, SLJIT_EQUAL);
|
|
OP2(SLJIT_OR, TMP1, 0, TMP1, 0, SLJIT_IMM, 0x1);
|
|
OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, 0x2029 - 0x0a);
|
|
#if PCRE2_CODE_UNIT_WIDTH == 8
|
|
}
|
|
#endif
|
|
#endif /* SUPPORT_UNICODE || PCRE2_CODE_UNIT_WIDTH == [16|32] */
|
|
OP_FLAGS(SLJIT_OR | SLJIT_SET_E, TMP2, 0, TMP2, 0, SLJIT_EQUAL);
|
|
|
|
sljit_emit_fast_return(compiler, RETURN_ADDR, 0);
|
|
}
|
|
|
|
#define CHAR1 STR_END
|
|
#define CHAR2 STACK_TOP
|
|
|
|
static void do_casefulcmp(compiler_common *common)
|
|
{
|
|
DEFINE_COMPILER;
|
|
struct sljit_jump *jump;
|
|
struct sljit_label *label;
|
|
|
|
sljit_emit_fast_enter(compiler, RETURN_ADDR, 0);
|
|
OP2(SLJIT_SUB, STR_PTR, 0, STR_PTR, 0, TMP2, 0);
|
|
OP1(SLJIT_MOV, TMP3, 0, CHAR1, 0);
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), LOCALS0, CHAR2, 0);
|
|
OP2(SLJIT_SUB, TMP1, 0, TMP1, 0, SLJIT_IMM, IN_UCHARS(1));
|
|
OP2(SLJIT_SUB, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1));
|
|
|
|
label = LABEL();
|
|
OP1(MOVU_UCHAR, CHAR1, 0, SLJIT_MEM1(TMP1), IN_UCHARS(1));
|
|
OP1(MOVU_UCHAR, CHAR2, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(1));
|
|
jump = CMP(SLJIT_NOT_EQUAL, CHAR1, 0, CHAR2, 0);
|
|
OP2(SLJIT_SUB | SLJIT_SET_E, TMP2, 0, TMP2, 0, SLJIT_IMM, IN_UCHARS(1));
|
|
JUMPTO(SLJIT_NOT_ZERO, label);
|
|
|
|
JUMPHERE(jump);
|
|
OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1));
|
|
OP1(SLJIT_MOV, CHAR1, 0, TMP3, 0);
|
|
OP1(SLJIT_MOV, CHAR2, 0, SLJIT_MEM1(SLJIT_SP), LOCALS0);
|
|
sljit_emit_fast_return(compiler, RETURN_ADDR, 0);
|
|
}
|
|
|
|
#define LCC_TABLE STACK_LIMIT
|
|
|
|
static void do_caselesscmp(compiler_common *common)
|
|
{
|
|
DEFINE_COMPILER;
|
|
struct sljit_jump *jump;
|
|
struct sljit_label *label;
|
|
|
|
sljit_emit_fast_enter(compiler, RETURN_ADDR, 0);
|
|
OP2(SLJIT_SUB, STR_PTR, 0, STR_PTR, 0, TMP2, 0);
|
|
|
|
OP1(SLJIT_MOV, TMP3, 0, LCC_TABLE, 0);
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), LOCALS0, CHAR1, 0);
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), LOCALS1, CHAR2, 0);
|
|
OP1(SLJIT_MOV, LCC_TABLE, 0, SLJIT_IMM, common->lcc);
|
|
OP2(SLJIT_SUB, TMP1, 0, TMP1, 0, SLJIT_IMM, IN_UCHARS(1));
|
|
OP2(SLJIT_SUB, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1));
|
|
|
|
label = LABEL();
|
|
OP1(MOVU_UCHAR, CHAR1, 0, SLJIT_MEM1(TMP1), IN_UCHARS(1));
|
|
OP1(MOVU_UCHAR, CHAR2, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(1));
|
|
#if PCRE2_CODE_UNIT_WIDTH != 8
|
|
jump = CMP(SLJIT_GREATER, CHAR1, 0, SLJIT_IMM, 255);
|
|
#endif
|
|
OP1(SLJIT_MOV_U8, CHAR1, 0, SLJIT_MEM2(LCC_TABLE, CHAR1), 0);
|
|
#if PCRE2_CODE_UNIT_WIDTH != 8
|
|
JUMPHERE(jump);
|
|
jump = CMP(SLJIT_GREATER, CHAR2, 0, SLJIT_IMM, 255);
|
|
#endif
|
|
OP1(SLJIT_MOV_U8, CHAR2, 0, SLJIT_MEM2(LCC_TABLE, CHAR2), 0);
|
|
#if PCRE2_CODE_UNIT_WIDTH != 8
|
|
JUMPHERE(jump);
|
|
#endif
|
|
jump = CMP(SLJIT_NOT_EQUAL, CHAR1, 0, CHAR2, 0);
|
|
OP2(SLJIT_SUB | SLJIT_SET_E, TMP2, 0, TMP2, 0, SLJIT_IMM, IN_UCHARS(1));
|
|
JUMPTO(SLJIT_NOT_ZERO, label);
|
|
|
|
JUMPHERE(jump);
|
|
OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1));
|
|
OP1(SLJIT_MOV, LCC_TABLE, 0, TMP3, 0);
|
|
OP1(SLJIT_MOV, CHAR1, 0, SLJIT_MEM1(SLJIT_SP), LOCALS0);
|
|
OP1(SLJIT_MOV, CHAR2, 0, SLJIT_MEM1(SLJIT_SP), LOCALS1);
|
|
sljit_emit_fast_return(compiler, RETURN_ADDR, 0);
|
|
}
|
|
|
|
#undef LCC_TABLE
|
|
#undef CHAR1
|
|
#undef CHAR2
|
|
|
|
#if defined SUPPORT_UNICODE
|
|
|
|
static PCRE2_SPTR SLJIT_CALL do_utf_caselesscmp(PCRE2_SPTR src1, jit_arguments *args, PCRE2_SPTR end1)
|
|
{
|
|
/* This function would be ineffective to do in JIT level. */
|
|
sljit_u32 c1, c2;
|
|
PCRE2_SPTR src2 = args->startchar_ptr;
|
|
PCRE2_SPTR end2 = args->end;
|
|
const ucd_record *ur;
|
|
const sljit_u32 *pp;
|
|
|
|
while (src1 < end1)
|
|
{
|
|
if (src2 >= end2)
|
|
return (PCRE2_SPTR)1;
|
|
GETCHARINC(c1, src1);
|
|
GETCHARINC(c2, src2);
|
|
ur = GET_UCD(c2);
|
|
if (c1 != c2 && c1 != c2 + ur->other_case)
|
|
{
|
|
pp = PRIV(ucd_caseless_sets) + ur->caseset;
|
|
for (;;)
|
|
{
|
|
if (c1 < *pp) return NULL;
|
|
if (c1 == *pp++) break;
|
|
}
|
|
}
|
|
}
|
|
return src2;
|
|
}
|
|
|
|
#endif /* SUPPORT_UNICODE */
|
|
|
|
static PCRE2_SPTR byte_sequence_compare(compiler_common *common, BOOL caseless, PCRE2_SPTR cc,
|
|
compare_context *context, jump_list **backtracks)
|
|
{
|
|
DEFINE_COMPILER;
|
|
unsigned int othercasebit = 0;
|
|
PCRE2_SPTR othercasechar = NULL;
|
|
#ifdef SUPPORT_UNICODE
|
|
int utflength;
|
|
#endif
|
|
|
|
if (caseless && char_has_othercase(common, cc))
|
|
{
|
|
othercasebit = char_get_othercase_bit(common, cc);
|
|
SLJIT_ASSERT(othercasebit);
|
|
/* Extracting bit difference info. */
|
|
#if PCRE2_CODE_UNIT_WIDTH == 8
|
|
othercasechar = cc + (othercasebit >> 8);
|
|
othercasebit &= 0xff;
|
|
#elif PCRE2_CODE_UNIT_WIDTH == 16 || PCRE2_CODE_UNIT_WIDTH == 32
|
|
/* Note that this code only handles characters in the BMP. If there
|
|
ever are characters outside the BMP whose othercase differs in only one
|
|
bit from itself (there currently are none), this code will need to be
|
|
revised for PCRE2_CODE_UNIT_WIDTH == 32. */
|
|
othercasechar = cc + (othercasebit >> 9);
|
|
if ((othercasebit & 0x100) != 0)
|
|
othercasebit = (othercasebit & 0xff) << 8;
|
|
else
|
|
othercasebit &= 0xff;
|
|
#endif /* PCRE2_CODE_UNIT_WIDTH == [8|16|32] */
|
|
}
|
|
|
|
if (context->sourcereg == -1)
|
|
{
|
|
#if PCRE2_CODE_UNIT_WIDTH == 8
|
|
#if defined SLJIT_UNALIGNED && SLJIT_UNALIGNED
|
|
if (context->length >= 4)
|
|
OP1(SLJIT_MOV_S32, TMP1, 0, SLJIT_MEM1(STR_PTR), -context->length);
|
|
else if (context->length >= 2)
|
|
OP1(SLJIT_MOV_U16, TMP1, 0, SLJIT_MEM1(STR_PTR), -context->length);
|
|
else
|
|
#endif
|
|
OP1(SLJIT_MOV_U8, TMP1, 0, SLJIT_MEM1(STR_PTR), -context->length);
|
|
#elif PCRE2_CODE_UNIT_WIDTH == 16
|
|
#if defined SLJIT_UNALIGNED && SLJIT_UNALIGNED
|
|
if (context->length >= 4)
|
|
OP1(SLJIT_MOV_S32, TMP1, 0, SLJIT_MEM1(STR_PTR), -context->length);
|
|
else
|
|
#endif
|
|
OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), -context->length);
|
|
#elif PCRE2_CODE_UNIT_WIDTH == 32
|
|
OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), -context->length);
|
|
#endif /* PCRE2_CODE_UNIT_WIDTH == [8|16|32] */
|
|
context->sourcereg = TMP2;
|
|
}
|
|
|
|
#ifdef SUPPORT_UNICODE
|
|
utflength = 1;
|
|
if (common->utf && HAS_EXTRALEN(*cc))
|
|
utflength += GET_EXTRALEN(*cc);
|
|
|
|
do
|
|
{
|
|
#endif
|
|
|
|
context->length -= IN_UCHARS(1);
|
|
#if (defined SLJIT_UNALIGNED && SLJIT_UNALIGNED) && (PCRE2_CODE_UNIT_WIDTH == 8 || PCRE2_CODE_UNIT_WIDTH == 16)
|
|
|
|
/* Unaligned read is supported. */
|
|
if (othercasebit != 0 && othercasechar == cc)
|
|
{
|
|
context->c.asuchars[context->ucharptr] = *cc | othercasebit;
|
|
context->oc.asuchars[context->ucharptr] = othercasebit;
|
|
}
|
|
else
|
|
{
|
|
context->c.asuchars[context->ucharptr] = *cc;
|
|
context->oc.asuchars[context->ucharptr] = 0;
|
|
}
|
|
context->ucharptr++;
|
|
|
|
#if PCRE2_CODE_UNIT_WIDTH == 8
|
|
if (context->ucharptr >= 4 || context->length == 0 || (context->ucharptr == 2 && context->length == 1))
|
|
#else
|
|
if (context->ucharptr >= 2 || context->length == 0)
|
|
#endif
|
|
{
|
|
if (context->length >= 4)
|
|
OP1(SLJIT_MOV_S32, context->sourcereg, 0, SLJIT_MEM1(STR_PTR), -context->length);
|
|
else if (context->length >= 2)
|
|
OP1(SLJIT_MOV_U16, context->sourcereg, 0, SLJIT_MEM1(STR_PTR), -context->length);
|
|
#if PCRE2_CODE_UNIT_WIDTH == 8
|
|
else if (context->length >= 1)
|
|
OP1(SLJIT_MOV_U8, context->sourcereg, 0, SLJIT_MEM1(STR_PTR), -context->length);
|
|
#endif /* PCRE2_CODE_UNIT_WIDTH == 8 */
|
|
context->sourcereg = context->sourcereg == TMP1 ? TMP2 : TMP1;
|
|
|
|
switch(context->ucharptr)
|
|
{
|
|
case 4 / sizeof(PCRE2_UCHAR):
|
|
if (context->oc.asint != 0)
|
|
OP2(SLJIT_OR, context->sourcereg, 0, context->sourcereg, 0, SLJIT_IMM, context->oc.asint);
|
|
add_jump(compiler, backtracks, CMP(SLJIT_NOT_EQUAL, context->sourcereg, 0, SLJIT_IMM, context->c.asint | context->oc.asint));
|
|
break;
|
|
|
|
case 2 / sizeof(PCRE2_UCHAR):
|
|
if (context->oc.asushort != 0)
|
|
OP2(SLJIT_OR, context->sourcereg, 0, context->sourcereg, 0, SLJIT_IMM, context->oc.asushort);
|
|
add_jump(compiler, backtracks, CMP(SLJIT_NOT_EQUAL, context->sourcereg, 0, SLJIT_IMM, context->c.asushort | context->oc.asushort));
|
|
break;
|
|
|
|
#if PCRE2_CODE_UNIT_WIDTH == 8
|
|
case 1:
|
|
if (context->oc.asbyte != 0)
|
|
OP2(SLJIT_OR, context->sourcereg, 0, context->sourcereg, 0, SLJIT_IMM, context->oc.asbyte);
|
|
add_jump(compiler, backtracks, CMP(SLJIT_NOT_EQUAL, context->sourcereg, 0, SLJIT_IMM, context->c.asbyte | context->oc.asbyte));
|
|
break;
|
|
#endif
|
|
|
|
default:
|
|
SLJIT_ASSERT_STOP();
|
|
break;
|
|
}
|
|
context->ucharptr = 0;
|
|
}
|
|
|
|
#else
|
|
|
|
/* Unaligned read is unsupported or in 32 bit mode. */
|
|
if (context->length >= 1)
|
|
OP1(MOV_UCHAR, context->sourcereg, 0, SLJIT_MEM1(STR_PTR), -context->length);
|
|
|
|
context->sourcereg = context->sourcereg == TMP1 ? TMP2 : TMP1;
|
|
|
|
if (othercasebit != 0 && othercasechar == cc)
|
|
{
|
|
OP2(SLJIT_OR, context->sourcereg, 0, context->sourcereg, 0, SLJIT_IMM, othercasebit);
|
|
add_jump(compiler, backtracks, CMP(SLJIT_NOT_EQUAL, context->sourcereg, 0, SLJIT_IMM, *cc | othercasebit));
|
|
}
|
|
else
|
|
add_jump(compiler, backtracks, CMP(SLJIT_NOT_EQUAL, context->sourcereg, 0, SLJIT_IMM, *cc));
|
|
|
|
#endif
|
|
|
|
cc++;
|
|
#ifdef SUPPORT_UNICODE
|
|
utflength--;
|
|
}
|
|
while (utflength > 0);
|
|
#endif
|
|
|
|
return cc;
|
|
}
|
|
|
|
#if defined SUPPORT_UNICODE || PCRE2_CODE_UNIT_WIDTH != 8
|
|
|
|
#define SET_TYPE_OFFSET(value) \
|
|
if ((value) != typeoffset) \
|
|
{ \
|
|
if ((value) < typeoffset) \
|
|
OP2(SLJIT_ADD, typereg, 0, typereg, 0, SLJIT_IMM, typeoffset - (value)); \
|
|
else \
|
|
OP2(SLJIT_SUB, typereg, 0, typereg, 0, SLJIT_IMM, (value) - typeoffset); \
|
|
} \
|
|
typeoffset = (value);
|
|
|
|
#define SET_CHAR_OFFSET(value) \
|
|
if ((value) != charoffset) \
|
|
{ \
|
|
if ((value) < charoffset) \
|
|
OP2(SLJIT_ADD, TMP1, 0, TMP1, 0, SLJIT_IMM, (sljit_sw)(charoffset - (value))); \
|
|
else \
|
|
OP2(SLJIT_SUB, TMP1, 0, TMP1, 0, SLJIT_IMM, (sljit_sw)((value) - charoffset)); \
|
|
} \
|
|
charoffset = (value);
|
|
|
|
static PCRE2_SPTR compile_char1_matchingpath(compiler_common *common, PCRE2_UCHAR type, PCRE2_SPTR cc, jump_list **backtracks, BOOL check_str_ptr);
|
|
|
|
static void compile_xclass_matchingpath(compiler_common *common, PCRE2_SPTR cc, jump_list **backtracks)
|
|
{
|
|
DEFINE_COMPILER;
|
|
jump_list *found = NULL;
|
|
jump_list **list = (cc[0] & XCL_NOT) == 0 ? &found : backtracks;
|
|
sljit_uw c, charoffset, max = 256, min = READ_CHAR_MAX;
|
|
struct sljit_jump *jump = NULL;
|
|
PCRE2_SPTR ccbegin;
|
|
int compares, invertcmp, numberofcmps;
|
|
#if defined SUPPORT_UNICODE && (PCRE2_CODE_UNIT_WIDTH == 8 || PCRE2_CODE_UNIT_WIDTH == 16)
|
|
BOOL utf = common->utf;
|
|
#endif
|
|
|
|
#ifdef SUPPORT_UNICODE
|
|
BOOL needstype = FALSE, needsscript = FALSE, needschar = FALSE;
|
|
BOOL charsaved = FALSE;
|
|
int typereg = TMP1;
|
|
const sljit_u32 *other_cases;
|
|
sljit_uw typeoffset;
|
|
#endif
|
|
|
|
/* Scanning the necessary info. */
|
|
cc++;
|
|
ccbegin = cc;
|
|
compares = 0;
|
|
|
|
if (cc[-1] & XCL_MAP)
|
|
{
|
|
min = 0;
|
|
cc += 32 / sizeof(PCRE2_UCHAR);
|
|
}
|
|
|
|
while (*cc != XCL_END)
|
|
{
|
|
compares++;
|
|
if (*cc == XCL_SINGLE)
|
|
{
|
|
cc ++;
|
|
GETCHARINCTEST(c, cc);
|
|
if (c > max) max = c;
|
|
if (c < min) min = c;
|
|
#ifdef SUPPORT_UNICODE
|
|
needschar = TRUE;
|
|
#endif
|
|
}
|
|
else if (*cc == XCL_RANGE)
|
|
{
|
|
cc ++;
|
|
GETCHARINCTEST(c, cc);
|
|
if (c < min) min = c;
|
|
GETCHARINCTEST(c, cc);
|
|
if (c > max) max = c;
|
|
#ifdef SUPPORT_UNICODE
|
|
needschar = TRUE;
|
|
#endif
|
|
}
|
|
#ifdef SUPPORT_UNICODE
|
|
else
|
|
{
|
|
SLJIT_ASSERT(*cc == XCL_PROP || *cc == XCL_NOTPROP);
|
|
cc++;
|
|
if (*cc == PT_CLIST)
|
|
{
|
|
other_cases = PRIV(ucd_caseless_sets) + cc[1];
|
|
while (*other_cases != NOTACHAR)
|
|
{
|
|
if (*other_cases > max) max = *other_cases;
|
|
if (*other_cases < min) min = *other_cases;
|
|
other_cases++;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
max = READ_CHAR_MAX;
|
|
min = 0;
|
|
}
|
|
|
|
switch(*cc)
|
|
{
|
|
case PT_ANY:
|
|
/* Any either accepts everything or ignored. */
|
|
if (cc[-1] == XCL_PROP)
|
|
{
|
|
compile_char1_matchingpath(common, OP_ALLANY, cc, backtracks, FALSE);
|
|
if (list == backtracks)
|
|
add_jump(compiler, backtracks, JUMP(SLJIT_JUMP));
|
|
return;
|
|
}
|
|
break;
|
|
|
|
case PT_LAMP:
|
|
case PT_GC:
|
|
case PT_PC:
|
|
case PT_ALNUM:
|
|
needstype = TRUE;
|
|
break;
|
|
|
|
case PT_SC:
|
|
needsscript = TRUE;
|
|
break;
|
|
|
|
case PT_SPACE:
|
|
case PT_PXSPACE:
|
|
case PT_WORD:
|
|
case PT_PXGRAPH:
|
|
case PT_PXPRINT:
|
|
case PT_PXPUNCT:
|
|
needstype = TRUE;
|
|
needschar = TRUE;
|
|
break;
|
|
|
|
case PT_CLIST:
|
|
case PT_UCNC:
|
|
needschar = TRUE;
|
|
break;
|
|
|
|
default:
|
|
SLJIT_ASSERT_STOP();
|
|
break;
|
|
}
|
|
cc += 2;
|
|
}
|
|
#endif
|
|
}
|
|
SLJIT_ASSERT(compares > 0);
|
|
|
|
/* We are not necessary in utf mode even in 8 bit mode. */
|
|
cc = ccbegin;
|
|
read_char_range(common, min, max, (cc[-1] & XCL_NOT) != 0);
|
|
|
|
if ((cc[-1] & XCL_HASPROP) == 0)
|
|
{
|
|
if ((cc[-1] & XCL_MAP) != 0)
|
|
{
|
|
jump = CMP(SLJIT_GREATER, TMP1, 0, SLJIT_IMM, 255);
|
|
if (!check_class_ranges(common, (const sljit_u8 *)cc, (((const sljit_u8 *)cc)[31] & 0x80) != 0, TRUE, &found))
|
|
{
|
|
OP2(SLJIT_AND, TMP2, 0, TMP1, 0, SLJIT_IMM, 0x7);
|
|
OP2(SLJIT_LSHR, TMP1, 0, TMP1, 0, SLJIT_IMM, 3);
|
|
OP1(SLJIT_MOV_U8, TMP1, 0, SLJIT_MEM1(TMP1), (sljit_sw)cc);
|
|
OP2(SLJIT_SHL, TMP2, 0, SLJIT_IMM, 1, TMP2, 0);
|
|
OP2(SLJIT_AND | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, TMP2, 0);
|
|
add_jump(compiler, &found, JUMP(SLJIT_NOT_ZERO));
|
|
}
|
|
|
|
add_jump(compiler, backtracks, JUMP(SLJIT_JUMP));
|
|
JUMPHERE(jump);
|
|
|
|
cc += 32 / sizeof(PCRE2_UCHAR);
|
|
}
|
|
else
|
|
{
|
|
OP2(SLJIT_SUB, TMP2, 0, TMP1, 0, SLJIT_IMM, min);
|
|
add_jump(compiler, (cc[-1] & XCL_NOT) == 0 ? backtracks : &found, CMP(SLJIT_GREATER, TMP2, 0, SLJIT_IMM, max - min));
|
|
}
|
|
}
|
|
else if ((cc[-1] & XCL_MAP) != 0)
|
|
{
|
|
OP1(SLJIT_MOV, RETURN_ADDR, 0, TMP1, 0);
|
|
#ifdef SUPPORT_UNICODE
|
|
charsaved = TRUE;
|
|
#endif
|
|
if (!check_class_ranges(common, (const sljit_u8 *)cc, FALSE, TRUE, list))
|
|
{
|
|
#if PCRE2_CODE_UNIT_WIDTH == 8
|
|
jump = NULL;
|
|
if (common->utf)
|
|
#endif
|
|
jump = CMP(SLJIT_GREATER, TMP1, 0, SLJIT_IMM, 255);
|
|
|
|
OP2(SLJIT_AND, TMP2, 0, TMP1, 0, SLJIT_IMM, 0x7);
|
|
OP2(SLJIT_LSHR, TMP1, 0, TMP1, 0, SLJIT_IMM, 3);
|
|
OP1(SLJIT_MOV_U8, TMP1, 0, SLJIT_MEM1(TMP1), (sljit_sw)cc);
|
|
OP2(SLJIT_SHL, TMP2, 0, SLJIT_IMM, 1, TMP2, 0);
|
|
OP2(SLJIT_AND | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, TMP2, 0);
|
|
add_jump(compiler, list, JUMP(SLJIT_NOT_ZERO));
|
|
|
|
#if PCRE2_CODE_UNIT_WIDTH == 8
|
|
if (common->utf)
|
|
#endif
|
|
JUMPHERE(jump);
|
|
}
|
|
|
|
OP1(SLJIT_MOV, TMP1, 0, RETURN_ADDR, 0);
|
|
cc += 32 / sizeof(PCRE2_UCHAR);
|
|
}
|
|
|
|
#ifdef SUPPORT_UNICODE
|
|
if (needstype || needsscript)
|
|
{
|
|
if (needschar && !charsaved)
|
|
OP1(SLJIT_MOV, RETURN_ADDR, 0, TMP1, 0);
|
|
|
|
OP2(SLJIT_LSHR, TMP2, 0, TMP1, 0, SLJIT_IMM, UCD_BLOCK_SHIFT);
|
|
OP1(SLJIT_MOV_U8, TMP2, 0, SLJIT_MEM1(TMP2), (sljit_sw)PRIV(ucd_stage1));
|
|
OP2(SLJIT_AND, TMP1, 0, TMP1, 0, SLJIT_IMM, UCD_BLOCK_MASK);
|
|
OP2(SLJIT_SHL, TMP2, 0, TMP2, 0, SLJIT_IMM, UCD_BLOCK_SHIFT);
|
|
OP2(SLJIT_ADD, TMP1, 0, TMP1, 0, TMP2, 0);
|
|
OP1(SLJIT_MOV, TMP2, 0, SLJIT_IMM, (sljit_sw)PRIV(ucd_stage2));
|
|
OP1(SLJIT_MOV_U16, TMP2, 0, SLJIT_MEM2(TMP2, TMP1), 1);
|
|
|
|
/* Before anything else, we deal with scripts. */
|
|
if (needsscript)
|
|
{
|
|
OP1(SLJIT_MOV, TMP1, 0, SLJIT_IMM, (sljit_sw)PRIV(ucd_records) + SLJIT_OFFSETOF(ucd_record, script));
|
|
OP1(SLJIT_MOV_U8, TMP1, 0, SLJIT_MEM2(TMP1, TMP2), 3);
|
|
|
|
ccbegin = cc;
|
|
|
|
while (*cc != XCL_END)
|
|
{
|
|
if (*cc == XCL_SINGLE)
|
|
{
|
|
cc ++;
|
|
GETCHARINCTEST(c, cc);
|
|
}
|
|
else if (*cc == XCL_RANGE)
|
|
{
|
|
cc ++;
|
|
GETCHARINCTEST(c, cc);
|
|
GETCHARINCTEST(c, cc);
|
|
}
|
|
else
|
|
{
|
|
SLJIT_ASSERT(*cc == XCL_PROP || *cc == XCL_NOTPROP);
|
|
cc++;
|
|
if (*cc == PT_SC)
|
|
{
|
|
compares--;
|
|
invertcmp = (compares == 0 && list != backtracks);
|
|
if (cc[-1] == XCL_NOTPROP)
|
|
invertcmp ^= 0x1;
|
|
jump = CMP(SLJIT_EQUAL ^ invertcmp, TMP1, 0, SLJIT_IMM, (int)cc[1]);
|
|
add_jump(compiler, compares > 0 ? list : backtracks, jump);
|
|
}
|
|
cc += 2;
|
|
}
|
|
}
|
|
|
|
cc = ccbegin;
|
|
}
|
|
|
|
if (needschar)
|
|
{
|
|
OP1(SLJIT_MOV, TMP1, 0, RETURN_ADDR, 0);
|
|
}
|
|
|
|
if (needstype)
|
|
{
|
|
if (!needschar)
|
|
{
|
|
OP1(SLJIT_MOV, TMP1, 0, SLJIT_IMM, (sljit_sw)PRIV(ucd_records) + SLJIT_OFFSETOF(ucd_record, chartype));
|
|
OP1(SLJIT_MOV_U8, TMP1, 0, SLJIT_MEM2(TMP1, TMP2), 3);
|
|
}
|
|
else
|
|
{
|
|
OP2(SLJIT_SHL, TMP2, 0, TMP2, 0, SLJIT_IMM, 3);
|
|
OP1(SLJIT_MOV_U8, RETURN_ADDR, 0, SLJIT_MEM1(TMP2), (sljit_sw)PRIV(ucd_records) + SLJIT_OFFSETOF(ucd_record, chartype));
|
|
typereg = RETURN_ADDR;
|
|
}
|
|
}
|
|
}
|
|
#endif
|
|
|
|
/* Generating code. */
|
|
charoffset = 0;
|
|
numberofcmps = 0;
|
|
#ifdef SUPPORT_UNICODE
|
|
typeoffset = 0;
|
|
#endif
|
|
|
|
while (*cc != XCL_END)
|
|
{
|
|
compares--;
|
|
invertcmp = (compares == 0 && list != backtracks);
|
|
jump = NULL;
|
|
|
|
if (*cc == XCL_SINGLE)
|
|
{
|
|
cc ++;
|
|
GETCHARINCTEST(c, cc);
|
|
|
|
if (numberofcmps < 3 && (*cc == XCL_SINGLE || *cc == XCL_RANGE))
|
|
{
|
|
OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, (sljit_sw)(c - charoffset));
|
|
OP_FLAGS(numberofcmps == 0 ? SLJIT_MOV : SLJIT_OR, TMP2, 0, numberofcmps == 0 ? SLJIT_UNUSED : TMP2, 0, SLJIT_EQUAL);
|
|
numberofcmps++;
|
|
}
|
|
else if (numberofcmps > 0)
|
|
{
|
|
OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, (sljit_sw)(c - charoffset));
|
|
OP_FLAGS(SLJIT_OR | SLJIT_SET_E, TMP2, 0, TMP2, 0, SLJIT_EQUAL);
|
|
jump = JUMP(SLJIT_NOT_ZERO ^ invertcmp);
|
|
numberofcmps = 0;
|
|
}
|
|
else
|
|
{
|
|
jump = CMP(SLJIT_EQUAL ^ invertcmp, TMP1, 0, SLJIT_IMM, (sljit_sw)(c - charoffset));
|
|
numberofcmps = 0;
|
|
}
|
|
}
|
|
else if (*cc == XCL_RANGE)
|
|
{
|
|
cc ++;
|
|
GETCHARINCTEST(c, cc);
|
|
SET_CHAR_OFFSET(c);
|
|
GETCHARINCTEST(c, cc);
|
|
|
|
if (numberofcmps < 3 && (*cc == XCL_SINGLE || *cc == XCL_RANGE))
|
|
{
|
|
OP2(SLJIT_SUB | SLJIT_SET_U, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, (sljit_sw)(c - charoffset));
|
|
OP_FLAGS(numberofcmps == 0 ? SLJIT_MOV : SLJIT_OR, TMP2, 0, numberofcmps == 0 ? SLJIT_UNUSED : TMP2, 0, SLJIT_LESS_EQUAL);
|
|
numberofcmps++;
|
|
}
|
|
else if (numberofcmps > 0)
|
|
{
|
|
OP2(SLJIT_SUB | SLJIT_SET_U, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, (sljit_sw)(c - charoffset));
|
|
OP_FLAGS(SLJIT_OR | SLJIT_SET_E, TMP2, 0, TMP2, 0, SLJIT_LESS_EQUAL);
|
|
jump = JUMP(SLJIT_NOT_ZERO ^ invertcmp);
|
|
numberofcmps = 0;
|
|
}
|
|
else
|
|
{
|
|
jump = CMP(SLJIT_LESS_EQUAL ^ invertcmp, TMP1, 0, SLJIT_IMM, (sljit_sw)(c - charoffset));
|
|
numberofcmps = 0;
|
|
}
|
|
}
|
|
#ifdef SUPPORT_UNICODE
|
|
else
|
|
{
|
|
SLJIT_ASSERT(*cc == XCL_PROP || *cc == XCL_NOTPROP);
|
|
if (*cc == XCL_NOTPROP)
|
|
invertcmp ^= 0x1;
|
|
cc++;
|
|
switch(*cc)
|
|
{
|
|
case PT_ANY:
|
|
if (!invertcmp)
|
|
jump = JUMP(SLJIT_JUMP);
|
|
break;
|
|
|
|
case PT_LAMP:
|
|
OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, typereg, 0, SLJIT_IMM, ucp_Lu - typeoffset);
|
|
OP_FLAGS(SLJIT_MOV, TMP2, 0, SLJIT_UNUSED, 0, SLJIT_EQUAL);
|
|
OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, typereg, 0, SLJIT_IMM, ucp_Ll - typeoffset);
|
|
OP_FLAGS(SLJIT_OR, TMP2, 0, TMP2, 0, SLJIT_EQUAL);
|
|
OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, typereg, 0, SLJIT_IMM, ucp_Lt - typeoffset);
|
|
OP_FLAGS(SLJIT_OR | SLJIT_SET_E, TMP2, 0, TMP2, 0, SLJIT_EQUAL);
|
|
jump = JUMP(SLJIT_NOT_ZERO ^ invertcmp);
|
|
break;
|
|
|
|
case PT_GC:
|
|
c = PRIV(ucp_typerange)[(int)cc[1] * 2];
|
|
SET_TYPE_OFFSET(c);
|
|
jump = CMP(SLJIT_LESS_EQUAL ^ invertcmp, typereg, 0, SLJIT_IMM, PRIV(ucp_typerange)[(int)cc[1] * 2 + 1] - c);
|
|
break;
|
|
|
|
case PT_PC:
|
|
jump = CMP(SLJIT_EQUAL ^ invertcmp, typereg, 0, SLJIT_IMM, (int)cc[1] - typeoffset);
|
|
break;
|
|
|
|
case PT_SC:
|
|
compares++;
|
|
/* Do nothing. */
|
|
break;
|
|
|
|
case PT_SPACE:
|
|
case PT_PXSPACE:
|
|
SET_CHAR_OFFSET(9);
|
|
OP2(SLJIT_SUB | SLJIT_SET_U, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, 0xd - 0x9);
|
|
OP_FLAGS(SLJIT_MOV, TMP2, 0, SLJIT_UNUSED, 0, SLJIT_LESS_EQUAL);
|
|
|
|
OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, 0x85 - 0x9);
|
|
OP_FLAGS(SLJIT_OR | SLJIT_SET_E, TMP2, 0, TMP2, 0, SLJIT_EQUAL);
|
|
|
|
OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, 0x180e - 0x9);
|
|
OP_FLAGS(SLJIT_OR | SLJIT_SET_E, TMP2, 0, TMP2, 0, SLJIT_EQUAL);
|
|
|
|
SET_TYPE_OFFSET(ucp_Zl);
|
|
OP2(SLJIT_SUB | SLJIT_SET_U, SLJIT_UNUSED, 0, typereg, 0, SLJIT_IMM, ucp_Zs - ucp_Zl);
|
|
OP_FLAGS(SLJIT_OR | SLJIT_SET_E, TMP2, 0, TMP2, 0, SLJIT_LESS_EQUAL);
|
|
jump = JUMP(SLJIT_NOT_ZERO ^ invertcmp);
|
|
break;
|
|
|
|
case PT_WORD:
|
|
OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, (sljit_sw)(CHAR_UNDERSCORE - charoffset));
|
|
OP_FLAGS(SLJIT_MOV, TMP2, 0, SLJIT_UNUSED, 0, SLJIT_EQUAL);
|
|
/* Fall through. */
|
|
|
|
case PT_ALNUM:
|
|
SET_TYPE_OFFSET(ucp_Ll);
|
|
OP2(SLJIT_SUB | SLJIT_SET_U, SLJIT_UNUSED, 0, typereg, 0, SLJIT_IMM, ucp_Lu - ucp_Ll);
|
|
OP_FLAGS((*cc == PT_ALNUM) ? SLJIT_MOV : SLJIT_OR, TMP2, 0, (*cc == PT_ALNUM) ? SLJIT_UNUSED : TMP2, 0, SLJIT_LESS_EQUAL);
|
|
SET_TYPE_OFFSET(ucp_Nd);
|
|
OP2(SLJIT_SUB | SLJIT_SET_U, SLJIT_UNUSED, 0, typereg, 0, SLJIT_IMM, ucp_No - ucp_Nd);
|
|
OP_FLAGS(SLJIT_OR | SLJIT_SET_E, TMP2, 0, TMP2, 0, SLJIT_LESS_EQUAL);
|
|
jump = JUMP(SLJIT_NOT_ZERO ^ invertcmp);
|
|
break;
|
|
|
|
case PT_CLIST:
|
|
other_cases = PRIV(ucd_caseless_sets) + cc[1];
|
|
|
|
/* At least three characters are required.
|
|
Otherwise this case would be handled by the normal code path. */
|
|
SLJIT_ASSERT(other_cases[0] != NOTACHAR && other_cases[1] != NOTACHAR && other_cases[2] != NOTACHAR);
|
|
SLJIT_ASSERT(other_cases[0] < other_cases[1] && other_cases[1] < other_cases[2]);
|
|
|
|
/* Optimizing character pairs, if their difference is power of 2. */
|
|
if (is_powerof2(other_cases[1] ^ other_cases[0]))
|
|
{
|
|
if (charoffset == 0)
|
|
OP2(SLJIT_OR, TMP2, 0, TMP1, 0, SLJIT_IMM, other_cases[1] ^ other_cases[0]);
|
|
else
|
|
{
|
|
OP2(SLJIT_ADD, TMP2, 0, TMP1, 0, SLJIT_IMM, (sljit_sw)charoffset);
|
|
OP2(SLJIT_OR, TMP2, 0, TMP2, 0, SLJIT_IMM, other_cases[1] ^ other_cases[0]);
|
|
}
|
|
OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP2, 0, SLJIT_IMM, other_cases[1]);
|
|
OP_FLAGS(SLJIT_MOV, TMP2, 0, SLJIT_UNUSED, 0, SLJIT_EQUAL);
|
|
other_cases += 2;
|
|
}
|
|
else if (is_powerof2(other_cases[2] ^ other_cases[1]))
|
|
{
|
|
if (charoffset == 0)
|
|
OP2(SLJIT_OR, TMP2, 0, TMP1, 0, SLJIT_IMM, other_cases[2] ^ other_cases[1]);
|
|
else
|
|
{
|
|
OP2(SLJIT_ADD, TMP2, 0, TMP1, 0, SLJIT_IMM, (sljit_sw)charoffset);
|
|
OP2(SLJIT_OR, TMP2, 0, TMP2, 0, SLJIT_IMM, other_cases[1] ^ other_cases[0]);
|
|
}
|
|
OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP2, 0, SLJIT_IMM, other_cases[2]);
|
|
OP_FLAGS(SLJIT_MOV, TMP2, 0, SLJIT_UNUSED, 0, SLJIT_EQUAL);
|
|
|
|
OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, (sljit_sw)(other_cases[0] - charoffset));
|
|
OP_FLAGS(SLJIT_OR | ((other_cases[3] == NOTACHAR) ? SLJIT_SET_E : 0), TMP2, 0, TMP2, 0, SLJIT_EQUAL);
|
|
|
|
other_cases += 3;
|
|
}
|
|
else
|
|
{
|
|
OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, (sljit_sw)(*other_cases++ - charoffset));
|
|
OP_FLAGS(SLJIT_MOV, TMP2, 0, SLJIT_UNUSED, 0, SLJIT_EQUAL);
|
|
}
|
|
|
|
while (*other_cases != NOTACHAR)
|
|
{
|
|
OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, (sljit_sw)(*other_cases++ - charoffset));
|
|
OP_FLAGS(SLJIT_OR | ((*other_cases == NOTACHAR) ? SLJIT_SET_E : 0), TMP2, 0, TMP2, 0, SLJIT_EQUAL);
|
|
}
|
|
jump = JUMP(SLJIT_NOT_ZERO ^ invertcmp);
|
|
break;
|
|
|
|
case PT_UCNC:
|
|
OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, (sljit_sw)(CHAR_DOLLAR_SIGN - charoffset));
|
|
OP_FLAGS(SLJIT_MOV, TMP2, 0, SLJIT_UNUSED, 0, SLJIT_EQUAL);
|
|
OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, (sljit_sw)(CHAR_COMMERCIAL_AT - charoffset));
|
|
OP_FLAGS(SLJIT_OR, TMP2, 0, TMP2, 0, SLJIT_EQUAL);
|
|
OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, (sljit_sw)(CHAR_GRAVE_ACCENT - charoffset));
|
|
OP_FLAGS(SLJIT_OR, TMP2, 0, TMP2, 0, SLJIT_EQUAL);
|
|
|
|
SET_CHAR_OFFSET(0xa0);
|
|
OP2(SLJIT_SUB | SLJIT_SET_U, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, (sljit_sw)(0xd7ff - charoffset));
|
|
OP_FLAGS(SLJIT_OR, TMP2, 0, TMP2, 0, SLJIT_LESS_EQUAL);
|
|
SET_CHAR_OFFSET(0);
|
|
OP2(SLJIT_SUB | SLJIT_SET_U, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, 0xe000 - 0);
|
|
OP_FLAGS(SLJIT_OR | SLJIT_SET_E, TMP2, 0, TMP2, 0, SLJIT_GREATER_EQUAL);
|
|
jump = JUMP(SLJIT_NOT_ZERO ^ invertcmp);
|
|
break;
|
|
|
|
case PT_PXGRAPH:
|
|
/* C and Z groups are the farthest two groups. */
|
|
SET_TYPE_OFFSET(ucp_Ll);
|
|
OP2(SLJIT_SUB | SLJIT_SET_U, SLJIT_UNUSED, 0, typereg, 0, SLJIT_IMM, ucp_So - ucp_Ll);
|
|
OP_FLAGS(SLJIT_MOV, TMP2, 0, SLJIT_UNUSED, 0, SLJIT_GREATER);
|
|
|
|
jump = CMP(SLJIT_NOT_EQUAL, typereg, 0, SLJIT_IMM, ucp_Cf - ucp_Ll);
|
|
|
|
/* In case of ucp_Cf, we overwrite the result. */
|
|
SET_CHAR_OFFSET(0x2066);
|
|
OP2(SLJIT_SUB | SLJIT_SET_U, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, 0x2069 - 0x2066);
|
|
OP_FLAGS(SLJIT_MOV, TMP2, 0, SLJIT_UNUSED, 0, SLJIT_LESS_EQUAL);
|
|
|
|
OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, 0x061c - 0x2066);
|
|
OP_FLAGS(SLJIT_OR, TMP2, 0, TMP2, 0, SLJIT_EQUAL);
|
|
|
|
OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, 0x180e - 0x2066);
|
|
OP_FLAGS(SLJIT_OR, TMP2, 0, TMP2, 0, SLJIT_EQUAL);
|
|
|
|
JUMPHERE(jump);
|
|
jump = CMP(SLJIT_ZERO ^ invertcmp, TMP2, 0, SLJIT_IMM, 0);
|
|
break;
|
|
|
|
case PT_PXPRINT:
|
|
/* C and Z groups are the farthest two groups. */
|
|
SET_TYPE_OFFSET(ucp_Ll);
|
|
OP2(SLJIT_SUB | SLJIT_SET_U, SLJIT_UNUSED, 0, typereg, 0, SLJIT_IMM, ucp_So - ucp_Ll);
|
|
OP_FLAGS(SLJIT_MOV, TMP2, 0, SLJIT_UNUSED, 0, SLJIT_GREATER);
|
|
|
|
OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, typereg, 0, SLJIT_IMM, ucp_Zs - ucp_Ll);
|
|
OP_FLAGS(SLJIT_AND, TMP2, 0, TMP2, 0, SLJIT_NOT_EQUAL);
|
|
|
|
jump = CMP(SLJIT_NOT_EQUAL, typereg, 0, SLJIT_IMM, ucp_Cf - ucp_Ll);
|
|
|
|
/* In case of ucp_Cf, we overwrite the result. */
|
|
SET_CHAR_OFFSET(0x2066);
|
|
OP2(SLJIT_SUB | SLJIT_SET_U, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, 0x2069 - 0x2066);
|
|
OP_FLAGS(SLJIT_MOV, TMP2, 0, SLJIT_UNUSED, 0, SLJIT_LESS_EQUAL);
|
|
|
|
OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, 0x061c - 0x2066);
|
|
OP_FLAGS(SLJIT_OR, TMP2, 0, TMP2, 0, SLJIT_EQUAL);
|
|
|
|
JUMPHERE(jump);
|
|
jump = CMP(SLJIT_ZERO ^ invertcmp, TMP2, 0, SLJIT_IMM, 0);
|
|
break;
|
|
|
|
case PT_PXPUNCT:
|
|
SET_TYPE_OFFSET(ucp_Sc);
|
|
OP2(SLJIT_SUB | SLJIT_SET_U, SLJIT_UNUSED, 0, typereg, 0, SLJIT_IMM, ucp_So - ucp_Sc);
|
|
OP_FLAGS(SLJIT_MOV, TMP2, 0, SLJIT_UNUSED, 0, SLJIT_LESS_EQUAL);
|
|
|
|
SET_CHAR_OFFSET(0);
|
|
OP2(SLJIT_SUB | SLJIT_SET_U, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, 0x7f);
|
|
OP_FLAGS(SLJIT_AND, TMP2, 0, TMP2, 0, SLJIT_LESS_EQUAL);
|
|
|
|
SET_TYPE_OFFSET(ucp_Pc);
|
|
OP2(SLJIT_SUB | SLJIT_SET_U, SLJIT_UNUSED, 0, typereg, 0, SLJIT_IMM, ucp_Ps - ucp_Pc);
|
|
OP_FLAGS(SLJIT_OR | SLJIT_SET_E, TMP2, 0, TMP2, 0, SLJIT_LESS_EQUAL);
|
|
jump = JUMP(SLJIT_NOT_ZERO ^ invertcmp);
|
|
break;
|
|
|
|
default:
|
|
SLJIT_ASSERT_STOP();
|
|
break;
|
|
}
|
|
cc += 2;
|
|
}
|
|
#endif
|
|
|
|
if (jump != NULL)
|
|
add_jump(compiler, compares > 0 ? list : backtracks, jump);
|
|
}
|
|
|
|
if (found != NULL)
|
|
set_jumps(found, LABEL());
|
|
}
|
|
|
|
#undef SET_TYPE_OFFSET
|
|
#undef SET_CHAR_OFFSET
|
|
|
|
#endif
|
|
|
|
static PCRE2_SPTR compile_simple_assertion_matchingpath(compiler_common *common, PCRE2_UCHAR type, PCRE2_SPTR cc, jump_list **backtracks)
|
|
{
|
|
DEFINE_COMPILER;
|
|
int length;
|
|
struct sljit_jump *jump[4];
|
|
#ifdef SUPPORT_UNICODE
|
|
struct sljit_label *label;
|
|
#endif /* SUPPORT_UNICODE */
|
|
|
|
switch(type)
|
|
{
|
|
case OP_SOD:
|
|
OP1(SLJIT_MOV, TMP1, 0, ARGUMENTS, 0);
|
|
OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(TMP1), SLJIT_OFFSETOF(jit_arguments, begin));
|
|
add_jump(compiler, backtracks, CMP(SLJIT_NOT_EQUAL, STR_PTR, 0, TMP1, 0));
|
|
return cc;
|
|
|
|
case OP_SOM:
|
|
OP1(SLJIT_MOV, TMP1, 0, ARGUMENTS, 0);
|
|
OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(TMP1), SLJIT_OFFSETOF(jit_arguments, str));
|
|
add_jump(compiler, backtracks, CMP(SLJIT_NOT_EQUAL, STR_PTR, 0, TMP1, 0));
|
|
return cc;
|
|
|
|
case OP_NOT_WORD_BOUNDARY:
|
|
case OP_WORD_BOUNDARY:
|
|
add_jump(compiler, &common->wordboundary, JUMP(SLJIT_FAST_CALL));
|
|
add_jump(compiler, backtracks, JUMP(type == OP_NOT_WORD_BOUNDARY ? SLJIT_NOT_ZERO : SLJIT_ZERO));
|
|
return cc;
|
|
|
|
case OP_EODN:
|
|
/* Requires rather complex checks. */
|
|
jump[0] = CMP(SLJIT_GREATER_EQUAL, STR_PTR, 0, STR_END, 0);
|
|
if (common->nltype == NLTYPE_FIXED && common->newline > 255)
|
|
{
|
|
OP2(SLJIT_ADD, TMP2, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(2));
|
|
OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(0));
|
|
if (common->mode == PCRE2_JIT_COMPLETE)
|
|
add_jump(compiler, backtracks, CMP(SLJIT_NOT_EQUAL, TMP2, 0, STR_END, 0));
|
|
else
|
|
{
|
|
jump[1] = CMP(SLJIT_EQUAL, TMP2, 0, STR_END, 0);
|
|
OP2(SLJIT_SUB | SLJIT_SET_U, SLJIT_UNUSED, 0, TMP2, 0, STR_END, 0);
|
|
OP_FLAGS(SLJIT_MOV, TMP2, 0, SLJIT_UNUSED, 0, SLJIT_LESS);
|
|
OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, (common->newline >> 8) & 0xff);
|
|
OP_FLAGS(SLJIT_OR | SLJIT_SET_E, TMP2, 0, TMP2, 0, SLJIT_NOT_EQUAL);
|
|
add_jump(compiler, backtracks, JUMP(SLJIT_NOT_EQUAL));
|
|
check_partial(common, TRUE);
|
|
add_jump(compiler, backtracks, JUMP(SLJIT_JUMP));
|
|
JUMPHERE(jump[1]);
|
|
}
|
|
OP1(MOV_UCHAR, TMP2, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(1));
|
|
add_jump(compiler, backtracks, CMP(SLJIT_NOT_EQUAL, TMP1, 0, SLJIT_IMM, (common->newline >> 8) & 0xff));
|
|
add_jump(compiler, backtracks, CMP(SLJIT_NOT_EQUAL, TMP2, 0, SLJIT_IMM, common->newline & 0xff));
|
|
}
|
|
else if (common->nltype == NLTYPE_FIXED)
|
|
{
|
|
OP2(SLJIT_ADD, TMP2, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1));
|
|
OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(0));
|
|
add_jump(compiler, backtracks, CMP(SLJIT_NOT_EQUAL, TMP2, 0, STR_END, 0));
|
|
add_jump(compiler, backtracks, CMP(SLJIT_NOT_EQUAL, TMP1, 0, SLJIT_IMM, common->newline));
|
|
}
|
|
else
|
|
{
|
|
OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(0));
|
|
jump[1] = CMP(SLJIT_NOT_EQUAL, TMP1, 0, SLJIT_IMM, CHAR_CR);
|
|
OP2(SLJIT_ADD, TMP2, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(2));
|
|
OP2(SLJIT_SUB | SLJIT_SET_U, SLJIT_UNUSED, 0, TMP2, 0, STR_END, 0);
|
|
jump[2] = JUMP(SLJIT_GREATER);
|
|
add_jump(compiler, backtracks, JUMP(SLJIT_LESS));
|
|
/* Equal. */
|
|
OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(1));
|
|
jump[3] = CMP(SLJIT_EQUAL, TMP1, 0, SLJIT_IMM, CHAR_NL);
|
|
add_jump(compiler, backtracks, JUMP(SLJIT_JUMP));
|
|
|
|
JUMPHERE(jump[1]);
|
|
if (common->nltype == NLTYPE_ANYCRLF)
|
|
{
|
|
OP2(SLJIT_ADD, TMP2, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1));
|
|
add_jump(compiler, backtracks, CMP(SLJIT_LESS, TMP2, 0, STR_END, 0));
|
|
add_jump(compiler, backtracks, CMP(SLJIT_NOT_EQUAL, TMP1, 0, SLJIT_IMM, CHAR_NL));
|
|
}
|
|
else
|
|
{
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), LOCALS1, STR_PTR, 0);
|
|
read_char_range(common, common->nlmin, common->nlmax, TRUE);
|
|
add_jump(compiler, backtracks, CMP(SLJIT_NOT_EQUAL, STR_PTR, 0, STR_END, 0));
|
|
add_jump(compiler, &common->anynewline, JUMP(SLJIT_FAST_CALL));
|
|
add_jump(compiler, backtracks, JUMP(SLJIT_ZERO));
|
|
OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_MEM1(SLJIT_SP), LOCALS1);
|
|
}
|
|
JUMPHERE(jump[2]);
|
|
JUMPHERE(jump[3]);
|
|
}
|
|
JUMPHERE(jump[0]);
|
|
check_partial(common, FALSE);
|
|
return cc;
|
|
|
|
case OP_EOD:
|
|
add_jump(compiler, backtracks, CMP(SLJIT_LESS, STR_PTR, 0, STR_END, 0));
|
|
check_partial(common, FALSE);
|
|
return cc;
|
|
|
|
case OP_DOLL:
|
|
OP1(SLJIT_MOV, TMP2, 0, ARGUMENTS, 0);
|
|
OP2(SLJIT_AND32 | SLJIT_SET_E, SLJIT_UNUSED, 0, SLJIT_MEM1(TMP2), SLJIT_OFFSETOF(jit_arguments, options), SLJIT_IMM, PCRE2_NOTEOL);
|
|
add_jump(compiler, backtracks, JUMP(SLJIT_NOT_ZERO));
|
|
|
|
if (!common->endonly)
|
|
compile_simple_assertion_matchingpath(common, OP_EODN, cc, backtracks);
|
|
else
|
|
{
|
|
add_jump(compiler, backtracks, CMP(SLJIT_LESS, STR_PTR, 0, STR_END, 0));
|
|
check_partial(common, FALSE);
|
|
}
|
|
return cc;
|
|
|
|
case OP_DOLLM:
|
|
jump[1] = CMP(SLJIT_LESS, STR_PTR, 0, STR_END, 0);
|
|
OP1(SLJIT_MOV, TMP2, 0, ARGUMENTS, 0);
|
|
OP2(SLJIT_AND32 | SLJIT_SET_E, SLJIT_UNUSED, 0, SLJIT_MEM1(TMP2), SLJIT_OFFSETOF(jit_arguments, options), SLJIT_IMM, PCRE2_NOTEOL);
|
|
add_jump(compiler, backtracks, JUMP(SLJIT_NOT_ZERO));
|
|
check_partial(common, FALSE);
|
|
jump[0] = JUMP(SLJIT_JUMP);
|
|
JUMPHERE(jump[1]);
|
|
|
|
if (common->nltype == NLTYPE_FIXED && common->newline > 255)
|
|
{
|
|
OP2(SLJIT_ADD, TMP2, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(2));
|
|
OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(0));
|
|
if (common->mode == PCRE2_JIT_COMPLETE)
|
|
add_jump(compiler, backtracks, CMP(SLJIT_GREATER, TMP2, 0, STR_END, 0));
|
|
else
|
|
{
|
|
jump[1] = CMP(SLJIT_LESS_EQUAL, TMP2, 0, STR_END, 0);
|
|
/* STR_PTR = STR_END - IN_UCHARS(1) */
|
|
add_jump(compiler, backtracks, CMP(SLJIT_NOT_EQUAL, TMP1, 0, SLJIT_IMM, (common->newline >> 8) & 0xff));
|
|
check_partial(common, TRUE);
|
|
add_jump(compiler, backtracks, JUMP(SLJIT_JUMP));
|
|
JUMPHERE(jump[1]);
|
|
}
|
|
|
|
OP1(MOV_UCHAR, TMP2, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(1));
|
|
add_jump(compiler, backtracks, CMP(SLJIT_NOT_EQUAL, TMP1, 0, SLJIT_IMM, (common->newline >> 8) & 0xff));
|
|
add_jump(compiler, backtracks, CMP(SLJIT_NOT_EQUAL, TMP2, 0, SLJIT_IMM, common->newline & 0xff));
|
|
}
|
|
else
|
|
{
|
|
peek_char(common, common->nlmax);
|
|
check_newlinechar(common, common->nltype, backtracks, FALSE);
|
|
}
|
|
JUMPHERE(jump[0]);
|
|
return cc;
|
|
|
|
case OP_CIRC:
|
|
OP1(SLJIT_MOV, TMP2, 0, ARGUMENTS, 0);
|
|
OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(TMP2), SLJIT_OFFSETOF(jit_arguments, begin));
|
|
add_jump(compiler, backtracks, CMP(SLJIT_GREATER, STR_PTR, 0, TMP1, 0));
|
|
OP2(SLJIT_AND32 | SLJIT_SET_E, SLJIT_UNUSED, 0, SLJIT_MEM1(TMP2), SLJIT_OFFSETOF(jit_arguments, options), SLJIT_IMM, PCRE2_NOTBOL);
|
|
add_jump(compiler, backtracks, JUMP(SLJIT_NOT_ZERO));
|
|
return cc;
|
|
|
|
case OP_CIRCM:
|
|
OP1(SLJIT_MOV, TMP2, 0, ARGUMENTS, 0);
|
|
OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(TMP2), SLJIT_OFFSETOF(jit_arguments, begin));
|
|
jump[1] = CMP(SLJIT_GREATER, STR_PTR, 0, TMP1, 0);
|
|
OP2(SLJIT_AND32 | SLJIT_SET_E, SLJIT_UNUSED, 0, SLJIT_MEM1(TMP2), SLJIT_OFFSETOF(jit_arguments, options), SLJIT_IMM, PCRE2_NOTBOL);
|
|
add_jump(compiler, backtracks, JUMP(SLJIT_NOT_ZERO));
|
|
jump[0] = JUMP(SLJIT_JUMP);
|
|
JUMPHERE(jump[1]);
|
|
|
|
if (!common->alt_circumflex)
|
|
add_jump(compiler, backtracks, CMP(SLJIT_GREATER_EQUAL, STR_PTR, 0, STR_END, 0));
|
|
|
|
if (common->nltype == NLTYPE_FIXED && common->newline > 255)
|
|
{
|
|
OP2(SLJIT_SUB, TMP2, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(2));
|
|
add_jump(compiler, backtracks, CMP(SLJIT_LESS, TMP2, 0, TMP1, 0));
|
|
OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(-2));
|
|
OP1(MOV_UCHAR, TMP2, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(-1));
|
|
add_jump(compiler, backtracks, CMP(SLJIT_NOT_EQUAL, TMP1, 0, SLJIT_IMM, (common->newline >> 8) & 0xff));
|
|
add_jump(compiler, backtracks, CMP(SLJIT_NOT_EQUAL, TMP2, 0, SLJIT_IMM, common->newline & 0xff));
|
|
}
|
|
else
|
|
{
|
|
skip_char_back(common);
|
|
read_char_range(common, common->nlmin, common->nlmax, TRUE);
|
|
check_newlinechar(common, common->nltype, backtracks, FALSE);
|
|
}
|
|
JUMPHERE(jump[0]);
|
|
return cc;
|
|
|
|
case OP_REVERSE:
|
|
length = GET(cc, 0);
|
|
if (length == 0)
|
|
return cc + LINK_SIZE;
|
|
OP1(SLJIT_MOV, TMP1, 0, ARGUMENTS, 0);
|
|
#ifdef SUPPORT_UNICODE
|
|
if (common->utf)
|
|
{
|
|
OP1(SLJIT_MOV, TMP3, 0, SLJIT_MEM1(TMP1), SLJIT_OFFSETOF(jit_arguments, begin));
|
|
OP1(SLJIT_MOV, TMP2, 0, SLJIT_IMM, length);
|
|
label = LABEL();
|
|
add_jump(compiler, backtracks, CMP(SLJIT_LESS_EQUAL, STR_PTR, 0, TMP3, 0));
|
|
skip_char_back(common);
|
|
OP2(SLJIT_SUB | SLJIT_SET_E, TMP2, 0, TMP2, 0, SLJIT_IMM, 1);
|
|
JUMPTO(SLJIT_NOT_ZERO, label);
|
|
}
|
|
else
|
|
#endif
|
|
{
|
|
OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(TMP1), SLJIT_OFFSETOF(jit_arguments, begin));
|
|
OP2(SLJIT_SUB, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(length));
|
|
add_jump(compiler, backtracks, CMP(SLJIT_LESS, STR_PTR, 0, TMP1, 0));
|
|
}
|
|
check_start_used_ptr(common);
|
|
return cc + LINK_SIZE;
|
|
}
|
|
SLJIT_ASSERT_STOP();
|
|
return cc;
|
|
}
|
|
|
|
static PCRE2_SPTR compile_char1_matchingpath(compiler_common *common, PCRE2_UCHAR type, PCRE2_SPTR cc, jump_list **backtracks, BOOL check_str_ptr)
|
|
{
|
|
DEFINE_COMPILER;
|
|
int length;
|
|
unsigned int c, oc, bit;
|
|
compare_context context;
|
|
struct sljit_jump *jump[3];
|
|
jump_list *end_list;
|
|
#ifdef SUPPORT_UNICODE
|
|
struct sljit_label *label;
|
|
PCRE2_UCHAR propdata[5];
|
|
#endif /* SUPPORT_UNICODE */
|
|
|
|
switch(type)
|
|
{
|
|
case OP_NOT_DIGIT:
|
|
case OP_DIGIT:
|
|
/* Digits are usually 0-9, so it is worth to optimize them. */
|
|
if (check_str_ptr)
|
|
detect_partial_match(common, backtracks);
|
|
#if defined SUPPORT_UNICODE && PCRE2_CODE_UNIT_WIDTH == 8
|
|
if (common->utf && is_char7_bitset((const sljit_u8*)common->ctypes - cbit_length + cbit_digit, FALSE))
|
|
read_char7_type(common, type == OP_NOT_DIGIT);
|
|
else
|
|
#endif
|
|
read_char8_type(common, type == OP_NOT_DIGIT);
|
|
/* Flip the starting bit in the negative case. */
|
|
OP2(SLJIT_AND | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, ctype_digit);
|
|
add_jump(compiler, backtracks, JUMP(type == OP_DIGIT ? SLJIT_ZERO : SLJIT_NOT_ZERO));
|
|
return cc;
|
|
|
|
case OP_NOT_WHITESPACE:
|
|
case OP_WHITESPACE:
|
|
if (check_str_ptr)
|
|
detect_partial_match(common, backtracks);
|
|
#if defined SUPPORT_UNICODE && PCRE2_CODE_UNIT_WIDTH == 8
|
|
if (common->utf && is_char7_bitset((const sljit_u8*)common->ctypes - cbit_length + cbit_space, FALSE))
|
|
read_char7_type(common, type == OP_NOT_WHITESPACE);
|
|
else
|
|
#endif
|
|
read_char8_type(common, type == OP_NOT_WHITESPACE);
|
|
OP2(SLJIT_AND | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, ctype_space);
|
|
add_jump(compiler, backtracks, JUMP(type == OP_WHITESPACE ? SLJIT_ZERO : SLJIT_NOT_ZERO));
|
|
return cc;
|
|
|
|
case OP_NOT_WORDCHAR:
|
|
case OP_WORDCHAR:
|
|
if (check_str_ptr)
|
|
detect_partial_match(common, backtracks);
|
|
#if defined SUPPORT_UNICODE && PCRE2_CODE_UNIT_WIDTH == 8
|
|
if (common->utf && is_char7_bitset((const sljit_u8*)common->ctypes - cbit_length + cbit_word, FALSE))
|
|
read_char7_type(common, type == OP_NOT_WORDCHAR);
|
|
else
|
|
#endif
|
|
read_char8_type(common, type == OP_NOT_WORDCHAR);
|
|
OP2(SLJIT_AND | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, ctype_word);
|
|
add_jump(compiler, backtracks, JUMP(type == OP_WORDCHAR ? SLJIT_ZERO : SLJIT_NOT_ZERO));
|
|
return cc;
|
|
|
|
case OP_ANY:
|
|
if (check_str_ptr)
|
|
detect_partial_match(common, backtracks);
|
|
read_char_range(common, common->nlmin, common->nlmax, TRUE);
|
|
if (common->nltype == NLTYPE_FIXED && common->newline > 255)
|
|
{
|
|
jump[0] = CMP(SLJIT_NOT_EQUAL, TMP1, 0, SLJIT_IMM, (common->newline >> 8) & 0xff);
|
|
end_list = NULL;
|
|
if (common->mode != PCRE2_JIT_PARTIAL_HARD)
|
|
add_jump(compiler, &end_list, CMP(SLJIT_GREATER_EQUAL, STR_PTR, 0, STR_END, 0));
|
|
else
|
|
check_str_end(common, &end_list);
|
|
|
|
OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), 0);
|
|
add_jump(compiler, backtracks, CMP(SLJIT_EQUAL, TMP1, 0, SLJIT_IMM, common->newline & 0xff));
|
|
set_jumps(end_list, LABEL());
|
|
JUMPHERE(jump[0]);
|
|
}
|
|
else
|
|
check_newlinechar(common, common->nltype, backtracks, TRUE);
|
|
return cc;
|
|
|
|
case OP_ALLANY:
|
|
if (check_str_ptr)
|
|
detect_partial_match(common, backtracks);
|
|
#if defined SUPPORT_UNICODE && PCRE2_CODE_UNIT_WIDTH != 32
|
|
if (common->utf)
|
|
{
|
|
OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), 0);
|
|
OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1));
|
|
#if PCRE2_CODE_UNIT_WIDTH == 8 || PCRE2_CODE_UNIT_WIDTH == 16
|
|
#if PCRE2_CODE_UNIT_WIDTH == 8
|
|
jump[0] = CMP(SLJIT_LESS, TMP1, 0, SLJIT_IMM, 0xc0);
|
|
OP1(SLJIT_MOV_U8, TMP1, 0, SLJIT_MEM1(TMP1), (sljit_sw)PRIV(utf8_table4) - 0xc0);
|
|
OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, TMP1, 0);
|
|
#elif PCRE2_CODE_UNIT_WIDTH == 16
|
|
jump[0] = CMP(SLJIT_LESS, TMP1, 0, SLJIT_IMM, 0xd800);
|
|
OP2(SLJIT_AND, TMP1, 0, TMP1, 0, SLJIT_IMM, 0xfc00);
|
|
OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, 0xd800);
|
|
OP_FLAGS(SLJIT_MOV, TMP1, 0, SLJIT_UNUSED, 0, SLJIT_EQUAL);
|
|
OP2(SLJIT_SHL, TMP1, 0, TMP1, 0, SLJIT_IMM, 1);
|
|
OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, TMP1, 0);
|
|
#endif
|
|
JUMPHERE(jump[0]);
|
|
#endif /* PCRE2_CODE_UNIT_WIDTH == [8|16] */
|
|
return cc;
|
|
}
|
|
#endif
|
|
OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1));
|
|
return cc;
|
|
|
|
case OP_ANYBYTE:
|
|
if (check_str_ptr)
|
|
detect_partial_match(common, backtracks);
|
|
OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1));
|
|
return cc;
|
|
|
|
#ifdef SUPPORT_UNICODE
|
|
case OP_NOTPROP:
|
|
case OP_PROP:
|
|
propdata[0] = XCL_HASPROP;
|
|
propdata[1] = type == OP_NOTPROP ? XCL_NOTPROP : XCL_PROP;
|
|
propdata[2] = cc[0];
|
|
propdata[3] = cc[1];
|
|
propdata[4] = XCL_END;
|
|
if (check_str_ptr)
|
|
detect_partial_match(common, backtracks);
|
|
compile_xclass_matchingpath(common, propdata, backtracks);
|
|
return cc + 2;
|
|
#endif
|
|
|
|
case OP_ANYNL:
|
|
if (check_str_ptr)
|
|
detect_partial_match(common, backtracks);
|
|
read_char_range(common, common->bsr_nlmin, common->bsr_nlmax, FALSE);
|
|
jump[0] = CMP(SLJIT_NOT_EQUAL, TMP1, 0, SLJIT_IMM, CHAR_CR);
|
|
/* We don't need to handle soft partial matching case. */
|
|
end_list = NULL;
|
|
if (common->mode != PCRE2_JIT_PARTIAL_HARD)
|
|
add_jump(compiler, &end_list, CMP(SLJIT_GREATER_EQUAL, STR_PTR, 0, STR_END, 0));
|
|
else
|
|
check_str_end(common, &end_list);
|
|
OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), 0);
|
|
jump[1] = CMP(SLJIT_NOT_EQUAL, TMP1, 0, SLJIT_IMM, CHAR_NL);
|
|
OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1));
|
|
jump[2] = JUMP(SLJIT_JUMP);
|
|
JUMPHERE(jump[0]);
|
|
check_newlinechar(common, common->bsr_nltype, backtracks, FALSE);
|
|
set_jumps(end_list, LABEL());
|
|
JUMPHERE(jump[1]);
|
|
JUMPHERE(jump[2]);
|
|
return cc;
|
|
|
|
case OP_NOT_HSPACE:
|
|
case OP_HSPACE:
|
|
if (check_str_ptr)
|
|
detect_partial_match(common, backtracks);
|
|
read_char_range(common, 0x9, 0x3000, type == OP_NOT_HSPACE);
|
|
add_jump(compiler, &common->hspace, JUMP(SLJIT_FAST_CALL));
|
|
add_jump(compiler, backtracks, JUMP(type == OP_NOT_HSPACE ? SLJIT_NOT_ZERO : SLJIT_ZERO));
|
|
return cc;
|
|
|
|
case OP_NOT_VSPACE:
|
|
case OP_VSPACE:
|
|
if (check_str_ptr)
|
|
detect_partial_match(common, backtracks);
|
|
read_char_range(common, 0xa, 0x2029, type == OP_NOT_VSPACE);
|
|
add_jump(compiler, &common->vspace, JUMP(SLJIT_FAST_CALL));
|
|
add_jump(compiler, backtracks, JUMP(type == OP_NOT_VSPACE ? SLJIT_NOT_ZERO : SLJIT_ZERO));
|
|
return cc;
|
|
|
|
#ifdef SUPPORT_UNICODE
|
|
case OP_EXTUNI:
|
|
if (check_str_ptr)
|
|
detect_partial_match(common, backtracks);
|
|
read_char(common);
|
|
add_jump(compiler, &common->getucd, JUMP(SLJIT_FAST_CALL));
|
|
OP1(SLJIT_MOV, TMP1, 0, SLJIT_IMM, (sljit_sw)PRIV(ucd_records) + SLJIT_OFFSETOF(ucd_record, gbprop));
|
|
/* Optimize register allocation: use a real register. */
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), LOCALS0, STACK_TOP, 0);
|
|
OP1(SLJIT_MOV_U8, STACK_TOP, 0, SLJIT_MEM2(TMP1, TMP2), 3);
|
|
|
|
label = LABEL();
|
|
jump[0] = CMP(SLJIT_GREATER_EQUAL, STR_PTR, 0, STR_END, 0);
|
|
OP1(SLJIT_MOV, TMP3, 0, STR_PTR, 0);
|
|
read_char(common);
|
|
add_jump(compiler, &common->getucd, JUMP(SLJIT_FAST_CALL));
|
|
OP1(SLJIT_MOV, TMP1, 0, SLJIT_IMM, (sljit_sw)PRIV(ucd_records) + SLJIT_OFFSETOF(ucd_record, gbprop));
|
|
OP1(SLJIT_MOV_U8, TMP2, 0, SLJIT_MEM2(TMP1, TMP2), 3);
|
|
|
|
OP2(SLJIT_SHL, STACK_TOP, 0, STACK_TOP, 0, SLJIT_IMM, 2);
|
|
OP1(SLJIT_MOV_U32, TMP1, 0, SLJIT_MEM1(STACK_TOP), (sljit_sw)PRIV(ucp_gbtable));
|
|
OP1(SLJIT_MOV, STACK_TOP, 0, TMP2, 0);
|
|
OP2(SLJIT_SHL, TMP2, 0, SLJIT_IMM, 1, TMP2, 0);
|
|
OP2(SLJIT_AND | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, TMP2, 0);
|
|
JUMPTO(SLJIT_NOT_ZERO, label);
|
|
|
|
OP1(SLJIT_MOV, STR_PTR, 0, TMP3, 0);
|
|
JUMPHERE(jump[0]);
|
|
OP1(SLJIT_MOV, STACK_TOP, 0, SLJIT_MEM1(SLJIT_SP), LOCALS0);
|
|
|
|
if (common->mode == PCRE2_JIT_PARTIAL_HARD)
|
|
{
|
|
jump[0] = CMP(SLJIT_LESS, STR_PTR, 0, STR_END, 0);
|
|
/* Since we successfully read a char above, partial matching must occure. */
|
|
check_partial(common, TRUE);
|
|
JUMPHERE(jump[0]);
|
|
}
|
|
return cc;
|
|
#endif
|
|
|
|
case OP_CHAR:
|
|
case OP_CHARI:
|
|
length = 1;
|
|
#ifdef SUPPORT_UNICODE
|
|
if (common->utf && HAS_EXTRALEN(*cc)) length += GET_EXTRALEN(*cc);
|
|
#endif
|
|
if (common->mode == PCRE2_JIT_COMPLETE && check_str_ptr
|
|
&& (type == OP_CHAR || !char_has_othercase(common, cc) || char_get_othercase_bit(common, cc) != 0))
|
|
{
|
|
OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(length));
|
|
add_jump(compiler, backtracks, CMP(SLJIT_GREATER, STR_PTR, 0, STR_END, 0));
|
|
|
|
context.length = IN_UCHARS(length);
|
|
context.sourcereg = -1;
|
|
#if defined SLJIT_UNALIGNED && SLJIT_UNALIGNED
|
|
context.ucharptr = 0;
|
|
#endif
|
|
return byte_sequence_compare(common, type == OP_CHARI, cc, &context, backtracks);
|
|
}
|
|
|
|
if (check_str_ptr)
|
|
detect_partial_match(common, backtracks);
|
|
#ifdef SUPPORT_UNICODE
|
|
if (common->utf)
|
|
{
|
|
GETCHAR(c, cc);
|
|
}
|
|
else
|
|
#endif
|
|
c = *cc;
|
|
|
|
if (type == OP_CHAR || !char_has_othercase(common, cc))
|
|
{
|
|
read_char_range(common, c, c, FALSE);
|
|
add_jump(compiler, backtracks, CMP(SLJIT_NOT_EQUAL, TMP1, 0, SLJIT_IMM, c));
|
|
return cc + length;
|
|
}
|
|
oc = char_othercase(common, c);
|
|
read_char_range(common, c < oc ? c : oc, c > oc ? c : oc, FALSE);
|
|
bit = c ^ oc;
|
|
if (is_powerof2(bit))
|
|
{
|
|
OP2(SLJIT_OR, TMP1, 0, TMP1, 0, SLJIT_IMM, bit);
|
|
add_jump(compiler, backtracks, CMP(SLJIT_NOT_EQUAL, TMP1, 0, SLJIT_IMM, c | bit));
|
|
return cc + length;
|
|
}
|
|
jump[0] = CMP(SLJIT_EQUAL, TMP1, 0, SLJIT_IMM, c);
|
|
add_jump(compiler, backtracks, CMP(SLJIT_NOT_EQUAL, TMP1, 0, SLJIT_IMM, oc));
|
|
JUMPHERE(jump[0]);
|
|
return cc + length;
|
|
|
|
case OP_NOT:
|
|
case OP_NOTI:
|
|
if (check_str_ptr)
|
|
detect_partial_match(common, backtracks);
|
|
|
|
length = 1;
|
|
#ifdef SUPPORT_UNICODE
|
|
if (common->utf)
|
|
{
|
|
#if PCRE2_CODE_UNIT_WIDTH == 8
|
|
c = *cc;
|
|
if (c < 128)
|
|
{
|
|
OP1(SLJIT_MOV_U8, TMP1, 0, SLJIT_MEM1(STR_PTR), 0);
|
|
if (type == OP_NOT || !char_has_othercase(common, cc))
|
|
add_jump(compiler, backtracks, CMP(SLJIT_EQUAL, TMP1, 0, SLJIT_IMM, c));
|
|
else
|
|
{
|
|
/* Since UTF8 code page is fixed, we know that c is in [a-z] or [A-Z] range. */
|
|
OP2(SLJIT_OR, TMP2, 0, TMP1, 0, SLJIT_IMM, 0x20);
|
|
add_jump(compiler, backtracks, CMP(SLJIT_EQUAL, TMP2, 0, SLJIT_IMM, c | 0x20));
|
|
}
|
|
/* Skip the variable-length character. */
|
|
OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1));
|
|
jump[0] = CMP(SLJIT_LESS, TMP1, 0, SLJIT_IMM, 0xc0);
|
|
OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(TMP1), (sljit_sw)PRIV(utf8_table4) - 0xc0);
|
|
OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, TMP1, 0);
|
|
JUMPHERE(jump[0]);
|
|
return cc + 1;
|
|
}
|
|
else
|
|
#endif /* PCRE2_CODE_UNIT_WIDTH == 8 */
|
|
{
|
|
GETCHARLEN(c, cc, length);
|
|
}
|
|
}
|
|
else
|
|
#endif /* SUPPORT_UNICODE */
|
|
c = *cc;
|
|
|
|
if (type == OP_NOT || !char_has_othercase(common, cc))
|
|
{
|
|
read_char_range(common, c, c, TRUE);
|
|
add_jump(compiler, backtracks, CMP(SLJIT_EQUAL, TMP1, 0, SLJIT_IMM, c));
|
|
}
|
|
else
|
|
{
|
|
oc = char_othercase(common, c);
|
|
read_char_range(common, c < oc ? c : oc, c > oc ? c : oc, TRUE);
|
|
bit = c ^ oc;
|
|
if (is_powerof2(bit))
|
|
{
|
|
OP2(SLJIT_OR, TMP1, 0, TMP1, 0, SLJIT_IMM, bit);
|
|
add_jump(compiler, backtracks, CMP(SLJIT_EQUAL, TMP1, 0, SLJIT_IMM, c | bit));
|
|
}
|
|
else
|
|
{
|
|
add_jump(compiler, backtracks, CMP(SLJIT_EQUAL, TMP1, 0, SLJIT_IMM, c));
|
|
add_jump(compiler, backtracks, CMP(SLJIT_EQUAL, TMP1, 0, SLJIT_IMM, oc));
|
|
}
|
|
}
|
|
return cc + length;
|
|
|
|
case OP_CLASS:
|
|
case OP_NCLASS:
|
|
if (check_str_ptr)
|
|
detect_partial_match(common, backtracks);
|
|
|
|
#if defined SUPPORT_UNICODE && PCRE2_CODE_UNIT_WIDTH == 8
|
|
bit = (common->utf && is_char7_bitset((const sljit_u8 *)cc, type == OP_NCLASS)) ? 127 : 255;
|
|
read_char_range(common, 0, bit, type == OP_NCLASS);
|
|
#else
|
|
read_char_range(common, 0, 255, type == OP_NCLASS);
|
|
#endif
|
|
|
|
if (check_class_ranges(common, (const sljit_u8 *)cc, type == OP_NCLASS, FALSE, backtracks))
|
|
return cc + 32 / sizeof(PCRE2_UCHAR);
|
|
|
|
#if defined SUPPORT_UNICODE && PCRE2_CODE_UNIT_WIDTH == 8
|
|
jump[0] = NULL;
|
|
if (common->utf)
|
|
{
|
|
jump[0] = CMP(SLJIT_GREATER, TMP1, 0, SLJIT_IMM, bit);
|
|
if (type == OP_CLASS)
|
|
{
|
|
add_jump(compiler, backtracks, jump[0]);
|
|
jump[0] = NULL;
|
|
}
|
|
}
|
|
#elif PCRE2_CODE_UNIT_WIDTH != 8
|
|
jump[0] = CMP(SLJIT_GREATER, TMP1, 0, SLJIT_IMM, 255);
|
|
if (type == OP_CLASS)
|
|
{
|
|
add_jump(compiler, backtracks, jump[0]);
|
|
jump[0] = NULL;
|
|
}
|
|
#endif /* SUPPORT_UNICODE && PCRE2_CODE_UNIT_WIDTH == 8 */
|
|
|
|
OP2(SLJIT_AND, TMP2, 0, TMP1, 0, SLJIT_IMM, 0x7);
|
|
OP2(SLJIT_LSHR, TMP1, 0, TMP1, 0, SLJIT_IMM, 3);
|
|
OP1(SLJIT_MOV_U8, TMP1, 0, SLJIT_MEM1(TMP1), (sljit_sw)cc);
|
|
OP2(SLJIT_SHL, TMP2, 0, SLJIT_IMM, 1, TMP2, 0);
|
|
OP2(SLJIT_AND | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, TMP2, 0);
|
|
add_jump(compiler, backtracks, JUMP(SLJIT_ZERO));
|
|
|
|
#if defined SUPPORT_UNICODE || PCRE2_CODE_UNIT_WIDTH != 8
|
|
if (jump[0] != NULL)
|
|
JUMPHERE(jump[0]);
|
|
#endif
|
|
return cc + 32 / sizeof(PCRE2_UCHAR);
|
|
|
|
#if defined SUPPORT_UNICODE || PCRE2_CODE_UNIT_WIDTH == 16 || PCRE2_CODE_UNIT_WIDTH == 32
|
|
case OP_XCLASS:
|
|
if (check_str_ptr)
|
|
detect_partial_match(common, backtracks);
|
|
compile_xclass_matchingpath(common, cc + LINK_SIZE, backtracks);
|
|
return cc + GET(cc, 0) - 1;
|
|
#endif
|
|
}
|
|
SLJIT_ASSERT_STOP();
|
|
return cc;
|
|
}
|
|
|
|
static SLJIT_INLINE PCRE2_SPTR compile_charn_matchingpath(compiler_common *common, PCRE2_SPTR cc, PCRE2_SPTR ccend, jump_list **backtracks)
|
|
{
|
|
/* This function consumes at least one input character. */
|
|
/* To decrease the number of length checks, we try to concatenate the fixed length character sequences. */
|
|
DEFINE_COMPILER;
|
|
PCRE2_SPTR ccbegin = cc;
|
|
compare_context context;
|
|
int size;
|
|
|
|
context.length = 0;
|
|
do
|
|
{
|
|
if (cc >= ccend)
|
|
break;
|
|
|
|
if (*cc == OP_CHAR)
|
|
{
|
|
size = 1;
|
|
#ifdef SUPPORT_UNICODE
|
|
if (common->utf && HAS_EXTRALEN(cc[1]))
|
|
size += GET_EXTRALEN(cc[1]);
|
|
#endif
|
|
}
|
|
else if (*cc == OP_CHARI)
|
|
{
|
|
size = 1;
|
|
#ifdef SUPPORT_UNICODE
|
|
if (common->utf)
|
|
{
|
|
if (char_has_othercase(common, cc + 1) && char_get_othercase_bit(common, cc + 1) == 0)
|
|
size = 0;
|
|
else if (HAS_EXTRALEN(cc[1]))
|
|
size += GET_EXTRALEN(cc[1]);
|
|
}
|
|
else
|
|
#endif
|
|
if (char_has_othercase(common, cc + 1) && char_get_othercase_bit(common, cc + 1) == 0)
|
|
size = 0;
|
|
}
|
|
else
|
|
size = 0;
|
|
|
|
cc += 1 + size;
|
|
context.length += IN_UCHARS(size);
|
|
}
|
|
while (size > 0 && context.length <= 128);
|
|
|
|
cc = ccbegin;
|
|
if (context.length > 0)
|
|
{
|
|
/* We have a fixed-length byte sequence. */
|
|
OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, context.length);
|
|
add_jump(compiler, backtracks, CMP(SLJIT_GREATER, STR_PTR, 0, STR_END, 0));
|
|
|
|
context.sourcereg = -1;
|
|
#if defined SLJIT_UNALIGNED && SLJIT_UNALIGNED
|
|
context.ucharptr = 0;
|
|
#endif
|
|
do cc = byte_sequence_compare(common, *cc == OP_CHARI, cc + 1, &context, backtracks); while (context.length > 0);
|
|
return cc;
|
|
}
|
|
|
|
/* A non-fixed length character will be checked if length == 0. */
|
|
return compile_char1_matchingpath(common, *cc, cc + 1, backtracks, TRUE);
|
|
}
|
|
|
|
/* Forward definitions. */
|
|
static void compile_matchingpath(compiler_common *, PCRE2_SPTR, PCRE2_SPTR, backtrack_common *);
|
|
static void compile_backtrackingpath(compiler_common *, struct backtrack_common *);
|
|
|
|
#define PUSH_BACKTRACK(size, ccstart, error) \
|
|
do \
|
|
{ \
|
|
backtrack = sljit_alloc_memory(compiler, (size)); \
|
|
if (SLJIT_UNLIKELY(sljit_get_compiler_error(compiler))) \
|
|
return error; \
|
|
memset(backtrack, 0, size); \
|
|
backtrack->prev = parent->top; \
|
|
backtrack->cc = (ccstart); \
|
|
parent->top = backtrack; \
|
|
} \
|
|
while (0)
|
|
|
|
#define PUSH_BACKTRACK_NOVALUE(size, ccstart) \
|
|
do \
|
|
{ \
|
|
backtrack = sljit_alloc_memory(compiler, (size)); \
|
|
if (SLJIT_UNLIKELY(sljit_get_compiler_error(compiler))) \
|
|
return; \
|
|
memset(backtrack, 0, size); \
|
|
backtrack->prev = parent->top; \
|
|
backtrack->cc = (ccstart); \
|
|
parent->top = backtrack; \
|
|
} \
|
|
while (0)
|
|
|
|
#define BACKTRACK_AS(type) ((type *)backtrack)
|
|
|
|
static void compile_dnref_search(compiler_common *common, PCRE2_SPTR cc, jump_list **backtracks)
|
|
{
|
|
/* The OVECTOR offset goes to TMP2. */
|
|
DEFINE_COMPILER;
|
|
int count = GET2(cc, 1 + IMM2_SIZE);
|
|
PCRE2_SPTR slot = common->name_table + GET2(cc, 1) * common->name_entry_size;
|
|
unsigned int offset;
|
|
jump_list *found = NULL;
|
|
|
|
SLJIT_ASSERT(*cc == OP_DNREF || *cc == OP_DNREFI);
|
|
|
|
OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_SP), OVECTOR(1));
|
|
|
|
count--;
|
|
while (count-- > 0)
|
|
{
|
|
offset = GET2(slot, 0) << 1;
|
|
GET_LOCAL_BASE(TMP2, 0, OVECTOR(offset));
|
|
add_jump(compiler, &found, CMP(SLJIT_NOT_EQUAL, SLJIT_MEM1(SLJIT_SP), OVECTOR(offset), TMP1, 0));
|
|
slot += common->name_entry_size;
|
|
}
|
|
|
|
offset = GET2(slot, 0) << 1;
|
|
GET_LOCAL_BASE(TMP2, 0, OVECTOR(offset));
|
|
if (backtracks != NULL && !common->unset_backref)
|
|
add_jump(compiler, backtracks, CMP(SLJIT_EQUAL, SLJIT_MEM1(SLJIT_SP), OVECTOR(offset), TMP1, 0));
|
|
|
|
set_jumps(found, LABEL());
|
|
}
|
|
|
|
static void compile_ref_matchingpath(compiler_common *common, PCRE2_SPTR cc, jump_list **backtracks, BOOL withchecks, BOOL emptyfail)
|
|
{
|
|
DEFINE_COMPILER;
|
|
BOOL ref = (*cc == OP_REF || *cc == OP_REFI);
|
|
int offset = 0;
|
|
struct sljit_jump *jump = NULL;
|
|
struct sljit_jump *partial;
|
|
struct sljit_jump *nopartial;
|
|
|
|
if (ref)
|
|
{
|
|
offset = GET2(cc, 1) << 1;
|
|
OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_SP), OVECTOR(offset));
|
|
/* OVECTOR(1) contains the "string begin - 1" constant. */
|
|
if (withchecks && !common->unset_backref)
|
|
add_jump(compiler, backtracks, CMP(SLJIT_EQUAL, TMP1, 0, SLJIT_MEM1(SLJIT_SP), OVECTOR(1)));
|
|
}
|
|
else
|
|
OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(TMP2), 0);
|
|
|
|
#if defined SUPPORT_UNICODE
|
|
if (common->utf && *cc == OP_REFI)
|
|
{
|
|
SLJIT_ASSERT(TMP1 == SLJIT_R0 && STACK_TOP == SLJIT_R1 && TMP2 == SLJIT_R2);
|
|
if (ref)
|
|
OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(SLJIT_SP), OVECTOR(offset + 1));
|
|
else
|
|
OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(TMP2), sizeof(sljit_sw));
|
|
|
|
if (withchecks)
|
|
jump = CMP(SLJIT_EQUAL, TMP1, 0, TMP2, 0);
|
|
|
|
/* Needed to save important temporary registers. */
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), LOCALS0, STACK_TOP, 0);
|
|
OP1(SLJIT_MOV, SLJIT_R1, 0, ARGUMENTS, 0);
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_R1), SLJIT_OFFSETOF(jit_arguments, startchar_ptr), STR_PTR, 0);
|
|
sljit_emit_ijump(compiler, SLJIT_CALL3, SLJIT_IMM, SLJIT_FUNC_OFFSET(do_utf_caselesscmp));
|
|
OP1(SLJIT_MOV, STACK_TOP, 0, SLJIT_MEM1(SLJIT_SP), LOCALS0);
|
|
if (common->mode == PCRE2_JIT_COMPLETE)
|
|
add_jump(compiler, backtracks, CMP(SLJIT_LESS_EQUAL, SLJIT_RETURN_REG, 0, SLJIT_IMM, 1));
|
|
else
|
|
{
|
|
add_jump(compiler, backtracks, CMP(SLJIT_EQUAL, SLJIT_RETURN_REG, 0, SLJIT_IMM, 0));
|
|
nopartial = CMP(SLJIT_NOT_EQUAL, SLJIT_RETURN_REG, 0, SLJIT_IMM, 1);
|
|
check_partial(common, FALSE);
|
|
add_jump(compiler, backtracks, JUMP(SLJIT_JUMP));
|
|
JUMPHERE(nopartial);
|
|
}
|
|
OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_RETURN_REG, 0);
|
|
}
|
|
else
|
|
#endif /* SUPPORT_UNICODE */
|
|
{
|
|
if (ref)
|
|
OP2(SLJIT_SUB | SLJIT_SET_E, TMP2, 0, SLJIT_MEM1(SLJIT_SP), OVECTOR(offset + 1), TMP1, 0);
|
|
else
|
|
OP2(SLJIT_SUB | SLJIT_SET_E, TMP2, 0, SLJIT_MEM1(TMP2), sizeof(sljit_sw), TMP1, 0);
|
|
|
|
if (withchecks)
|
|
jump = JUMP(SLJIT_ZERO);
|
|
|
|
OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, TMP2, 0);
|
|
partial = CMP(SLJIT_GREATER, STR_PTR, 0, STR_END, 0);
|
|
if (common->mode == PCRE2_JIT_COMPLETE)
|
|
add_jump(compiler, backtracks, partial);
|
|
|
|
add_jump(compiler, *cc == OP_REF ? &common->casefulcmp : &common->caselesscmp, JUMP(SLJIT_FAST_CALL));
|
|
add_jump(compiler, backtracks, CMP(SLJIT_NOT_EQUAL, TMP2, 0, SLJIT_IMM, 0));
|
|
|
|
if (common->mode != PCRE2_JIT_COMPLETE)
|
|
{
|
|
nopartial = JUMP(SLJIT_JUMP);
|
|
JUMPHERE(partial);
|
|
/* TMP2 -= STR_END - STR_PTR */
|
|
OP2(SLJIT_SUB, TMP2, 0, TMP2, 0, STR_PTR, 0);
|
|
OP2(SLJIT_ADD, TMP2, 0, TMP2, 0, STR_END, 0);
|
|
partial = CMP(SLJIT_EQUAL, TMP2, 0, SLJIT_IMM, 0);
|
|
OP1(SLJIT_MOV, STR_PTR, 0, STR_END, 0);
|
|
add_jump(compiler, *cc == OP_REF ? &common->casefulcmp : &common->caselesscmp, JUMP(SLJIT_FAST_CALL));
|
|
add_jump(compiler, backtracks, CMP(SLJIT_NOT_EQUAL, TMP2, 0, SLJIT_IMM, 0));
|
|
JUMPHERE(partial);
|
|
check_partial(common, FALSE);
|
|
add_jump(compiler, backtracks, JUMP(SLJIT_JUMP));
|
|
JUMPHERE(nopartial);
|
|
}
|
|
}
|
|
|
|
if (jump != NULL)
|
|
{
|
|
if (emptyfail)
|
|
add_jump(compiler, backtracks, jump);
|
|
else
|
|
JUMPHERE(jump);
|
|
}
|
|
}
|
|
|
|
static SLJIT_INLINE PCRE2_SPTR compile_ref_iterator_matchingpath(compiler_common *common, PCRE2_SPTR cc, backtrack_common *parent)
|
|
{
|
|
DEFINE_COMPILER;
|
|
BOOL ref = (*cc == OP_REF || *cc == OP_REFI);
|
|
backtrack_common *backtrack;
|
|
PCRE2_UCHAR type;
|
|
int offset = 0;
|
|
struct sljit_label *label;
|
|
struct sljit_jump *zerolength;
|
|
struct sljit_jump *jump = NULL;
|
|
PCRE2_SPTR ccbegin = cc;
|
|
int min = 0, max = 0;
|
|
BOOL minimize;
|
|
|
|
PUSH_BACKTRACK(sizeof(ref_iterator_backtrack), cc, NULL);
|
|
|
|
if (ref)
|
|
offset = GET2(cc, 1) << 1;
|
|
else
|
|
cc += IMM2_SIZE;
|
|
type = cc[1 + IMM2_SIZE];
|
|
|
|
SLJIT_COMPILE_ASSERT((OP_CRSTAR & 0x1) == 0, crstar_opcode_must_be_even);
|
|
minimize = (type & 0x1) != 0;
|
|
switch(type)
|
|
{
|
|
case OP_CRSTAR:
|
|
case OP_CRMINSTAR:
|
|
min = 0;
|
|
max = 0;
|
|
cc += 1 + IMM2_SIZE + 1;
|
|
break;
|
|
case OP_CRPLUS:
|
|
case OP_CRMINPLUS:
|
|
min = 1;
|
|
max = 0;
|
|
cc += 1 + IMM2_SIZE + 1;
|
|
break;
|
|
case OP_CRQUERY:
|
|
case OP_CRMINQUERY:
|
|
min = 0;
|
|
max = 1;
|
|
cc += 1 + IMM2_SIZE + 1;
|
|
break;
|
|
case OP_CRRANGE:
|
|
case OP_CRMINRANGE:
|
|
min = GET2(cc, 1 + IMM2_SIZE + 1);
|
|
max = GET2(cc, 1 + IMM2_SIZE + 1 + IMM2_SIZE);
|
|
cc += 1 + IMM2_SIZE + 1 + 2 * IMM2_SIZE;
|
|
break;
|
|
default:
|
|
SLJIT_ASSERT_STOP();
|
|
break;
|
|
}
|
|
|
|
if (!minimize)
|
|
{
|
|
if (min == 0)
|
|
{
|
|
allocate_stack(common, 2);
|
|
if (ref)
|
|
OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_SP), OVECTOR(offset));
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), STR_PTR, 0);
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(1), SLJIT_IMM, 0);
|
|
/* Temporary release of STR_PTR. */
|
|
OP2(SLJIT_SUB, STACK_TOP, 0, STACK_TOP, 0, SLJIT_IMM, sizeof(sljit_sw));
|
|
/* Handles both invalid and empty cases. Since the minimum repeat,
|
|
is zero the invalid case is basically the same as an empty case. */
|
|
if (ref)
|
|
zerolength = CMP(SLJIT_EQUAL, TMP1, 0, SLJIT_MEM1(SLJIT_SP), OVECTOR(offset + 1));
|
|
else
|
|
{
|
|
compile_dnref_search(common, ccbegin, NULL);
|
|
OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(TMP2), 0);
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), POSSESSIVE1, TMP2, 0);
|
|
zerolength = CMP(SLJIT_EQUAL, TMP1, 0, SLJIT_MEM1(TMP2), sizeof(sljit_sw));
|
|
}
|
|
/* Restore if not zero length. */
|
|
OP2(SLJIT_ADD, STACK_TOP, 0, STACK_TOP, 0, SLJIT_IMM, sizeof(sljit_sw));
|
|
}
|
|
else
|
|
{
|
|
allocate_stack(common, 1);
|
|
if (ref)
|
|
OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_SP), OVECTOR(offset));
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), SLJIT_IMM, 0);
|
|
if (ref)
|
|
{
|
|
add_jump(compiler, &backtrack->topbacktracks, CMP(SLJIT_EQUAL, TMP1, 0, SLJIT_MEM1(SLJIT_SP), OVECTOR(1)));
|
|
zerolength = CMP(SLJIT_EQUAL, TMP1, 0, SLJIT_MEM1(SLJIT_SP), OVECTOR(offset + 1));
|
|
}
|
|
else
|
|
{
|
|
compile_dnref_search(common, ccbegin, &backtrack->topbacktracks);
|
|
OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(TMP2), 0);
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), POSSESSIVE1, TMP2, 0);
|
|
zerolength = CMP(SLJIT_EQUAL, TMP1, 0, SLJIT_MEM1(TMP2), sizeof(sljit_sw));
|
|
}
|
|
}
|
|
|
|
if (min > 1 || max > 1)
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), POSSESSIVE0, SLJIT_IMM, 0);
|
|
|
|
label = LABEL();
|
|
if (!ref)
|
|
OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(SLJIT_SP), POSSESSIVE1);
|
|
compile_ref_matchingpath(common, ccbegin, &backtrack->topbacktracks, FALSE, FALSE);
|
|
|
|
if (min > 1 || max > 1)
|
|
{
|
|
OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_SP), POSSESSIVE0);
|
|
OP2(SLJIT_ADD, TMP1, 0, TMP1, 0, SLJIT_IMM, 1);
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), POSSESSIVE0, TMP1, 0);
|
|
if (min > 1)
|
|
CMPTO(SLJIT_LESS, TMP1, 0, SLJIT_IMM, min, label);
|
|
if (max > 1)
|
|
{
|
|
jump = CMP(SLJIT_GREATER_EQUAL, TMP1, 0, SLJIT_IMM, max);
|
|
allocate_stack(common, 1);
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), STR_PTR, 0);
|
|
JUMPTO(SLJIT_JUMP, label);
|
|
JUMPHERE(jump);
|
|
}
|
|
}
|
|
|
|
if (max == 0)
|
|
{
|
|
/* Includes min > 1 case as well. */
|
|
allocate_stack(common, 1);
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), STR_PTR, 0);
|
|
JUMPTO(SLJIT_JUMP, label);
|
|
}
|
|
|
|
JUMPHERE(zerolength);
|
|
BACKTRACK_AS(ref_iterator_backtrack)->matchingpath = LABEL();
|
|
|
|
count_match(common);
|
|
return cc;
|
|
}
|
|
|
|
allocate_stack(common, ref ? 2 : 3);
|
|
if (ref)
|
|
OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_SP), OVECTOR(offset));
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), SLJIT_IMM, 0);
|
|
if (type != OP_CRMINSTAR)
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(1), SLJIT_IMM, 0);
|
|
|
|
if (min == 0)
|
|
{
|
|
/* Handles both invalid and empty cases. Since the minimum repeat,
|
|
is zero the invalid case is basically the same as an empty case. */
|
|
if (ref)
|
|
zerolength = CMP(SLJIT_EQUAL, TMP1, 0, SLJIT_MEM1(SLJIT_SP), OVECTOR(offset + 1));
|
|
else
|
|
{
|
|
compile_dnref_search(common, ccbegin, NULL);
|
|
OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(TMP2), 0);
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(2), TMP2, 0);
|
|
zerolength = CMP(SLJIT_EQUAL, TMP1, 0, SLJIT_MEM1(TMP2), sizeof(sljit_sw));
|
|
}
|
|
/* Length is non-zero, we can match real repeats. */
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), STR_PTR, 0);
|
|
jump = JUMP(SLJIT_JUMP);
|
|
}
|
|
else
|
|
{
|
|
if (ref)
|
|
{
|
|
add_jump(compiler, &backtrack->topbacktracks, CMP(SLJIT_EQUAL, TMP1, 0, SLJIT_MEM1(SLJIT_SP), OVECTOR(1)));
|
|
zerolength = CMP(SLJIT_EQUAL, TMP1, 0, SLJIT_MEM1(SLJIT_SP), OVECTOR(offset + 1));
|
|
}
|
|
else
|
|
{
|
|
compile_dnref_search(common, ccbegin, &backtrack->topbacktracks);
|
|
OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(TMP2), 0);
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(2), TMP2, 0);
|
|
zerolength = CMP(SLJIT_EQUAL, TMP1, 0, SLJIT_MEM1(TMP2), sizeof(sljit_sw));
|
|
}
|
|
}
|
|
|
|
BACKTRACK_AS(ref_iterator_backtrack)->matchingpath = LABEL();
|
|
if (max > 0)
|
|
add_jump(compiler, &backtrack->topbacktracks, CMP(SLJIT_GREATER_EQUAL, SLJIT_MEM1(STACK_TOP), STACK(1), SLJIT_IMM, max));
|
|
|
|
if (!ref)
|
|
OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(STACK_TOP), STACK(2));
|
|
compile_ref_matchingpath(common, ccbegin, &backtrack->topbacktracks, TRUE, TRUE);
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), STR_PTR, 0);
|
|
|
|
if (min > 1)
|
|
{
|
|
OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(STACK_TOP), STACK(1));
|
|
OP2(SLJIT_ADD, TMP1, 0, TMP1, 0, SLJIT_IMM, 1);
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(1), TMP1, 0);
|
|
CMPTO(SLJIT_LESS, TMP1, 0, SLJIT_IMM, min, BACKTRACK_AS(ref_iterator_backtrack)->matchingpath);
|
|
}
|
|
else if (max > 0)
|
|
OP2(SLJIT_ADD, SLJIT_MEM1(STACK_TOP), STACK(1), SLJIT_MEM1(STACK_TOP), STACK(1), SLJIT_IMM, 1);
|
|
|
|
if (jump != NULL)
|
|
JUMPHERE(jump);
|
|
JUMPHERE(zerolength);
|
|
|
|
count_match(common);
|
|
return cc;
|
|
}
|
|
|
|
static SLJIT_INLINE PCRE2_SPTR compile_recurse_matchingpath(compiler_common *common, PCRE2_SPTR cc, backtrack_common *parent)
|
|
{
|
|
DEFINE_COMPILER;
|
|
backtrack_common *backtrack;
|
|
recurse_entry *entry = common->entries;
|
|
recurse_entry *prev = NULL;
|
|
sljit_sw start = GET(cc, 1);
|
|
PCRE2_SPTR start_cc;
|
|
BOOL needs_control_head;
|
|
|
|
PUSH_BACKTRACK(sizeof(recurse_backtrack), cc, NULL);
|
|
|
|
/* Inlining simple patterns. */
|
|
if (get_framesize(common, common->start + start, NULL, TRUE, &needs_control_head) == no_stack)
|
|
{
|
|
start_cc = common->start + start;
|
|
compile_matchingpath(common, next_opcode(common, start_cc), bracketend(start_cc) - (1 + LINK_SIZE), backtrack);
|
|
BACKTRACK_AS(recurse_backtrack)->inlined_pattern = TRUE;
|
|
return cc + 1 + LINK_SIZE;
|
|
}
|
|
|
|
while (entry != NULL)
|
|
{
|
|
if (entry->start == start)
|
|
break;
|
|
prev = entry;
|
|
entry = entry->next;
|
|
}
|
|
|
|
if (entry == NULL)
|
|
{
|
|
entry = sljit_alloc_memory(compiler, sizeof(recurse_entry));
|
|
if (SLJIT_UNLIKELY(sljit_get_compiler_error(compiler)))
|
|
return NULL;
|
|
entry->next = NULL;
|
|
entry->entry = NULL;
|
|
entry->calls = NULL;
|
|
entry->start = start;
|
|
|
|
if (prev != NULL)
|
|
prev->next = entry;
|
|
else
|
|
common->entries = entry;
|
|
}
|
|
|
|
if (common->has_set_som && common->mark_ptr != 0)
|
|
{
|
|
OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(SLJIT_SP), OVECTOR(0));
|
|
allocate_stack(common, 2);
|
|
OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_SP), common->mark_ptr);
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), TMP2, 0);
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(1), TMP1, 0);
|
|
}
|
|
else if (common->has_set_som || common->mark_ptr != 0)
|
|
{
|
|
OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(SLJIT_SP), common->has_set_som ? (int)(OVECTOR(0)) : common->mark_ptr);
|
|
allocate_stack(common, 1);
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), TMP2, 0);
|
|
}
|
|
|
|
if (entry->entry == NULL)
|
|
add_jump(compiler, &entry->calls, JUMP(SLJIT_FAST_CALL));
|
|
else
|
|
JUMPTO(SLJIT_FAST_CALL, entry->entry);
|
|
/* Leave if the match is failed. */
|
|
add_jump(compiler, &backtrack->topbacktracks, CMP(SLJIT_EQUAL, TMP1, 0, SLJIT_IMM, 0));
|
|
return cc + 1 + LINK_SIZE;
|
|
}
|
|
|
|
static int SLJIT_CALL do_callout(struct jit_arguments *arguments, pcre2_callout_block *callout_block, PCRE2_SPTR *jit_ovector)
|
|
{
|
|
PCRE2_SPTR begin = arguments->begin;
|
|
PCRE2_SIZE *ovector = arguments->match_data->ovector;
|
|
sljit_u32 oveccount = arguments->oveccount;
|
|
sljit_u32 i;
|
|
|
|
if (arguments->callout == NULL)
|
|
return 0;
|
|
|
|
callout_block->version = 1;
|
|
|
|
/* Offsets in subject. */
|
|
callout_block->subject_length = arguments->end - arguments->begin;
|
|
callout_block->start_match = (PCRE2_SPTR)callout_block->subject - arguments->begin;
|
|
callout_block->current_position = (PCRE2_SPTR)callout_block->offset_vector - arguments->begin;
|
|
callout_block->subject = begin;
|
|
|
|
/* Convert and copy the JIT offset vector to the ovector array. */
|
|
callout_block->capture_top = 0;
|
|
callout_block->offset_vector = ovector;
|
|
for (i = 2; i < oveccount; i += 2)
|
|
{
|
|
ovector[i] = jit_ovector[i] - begin;
|
|
ovector[i + 1] = jit_ovector[i + 1] - begin;
|
|
if (jit_ovector[i] >= begin)
|
|
callout_block->capture_top = i;
|
|
}
|
|
|
|
callout_block->capture_top = (callout_block->capture_top >> 1) + 1;
|
|
ovector[0] = PCRE2_UNSET;
|
|
ovector[1] = PCRE2_UNSET;
|
|
return (arguments->callout)(callout_block, arguments->callout_data);
|
|
}
|
|
|
|
/* Aligning to 8 byte. */
|
|
#define CALLOUT_ARG_SIZE \
|
|
(((int)sizeof(pcre2_callout_block) + 7) & ~7)
|
|
|
|
#define CALLOUT_ARG_OFFSET(arg) \
|
|
(-CALLOUT_ARG_SIZE + SLJIT_OFFSETOF(pcre2_callout_block, arg))
|
|
|
|
static SLJIT_INLINE PCRE2_SPTR compile_callout_matchingpath(compiler_common *common, PCRE2_SPTR cc, backtrack_common *parent)
|
|
{
|
|
DEFINE_COMPILER;
|
|
backtrack_common *backtrack;
|
|
sljit_s32 mov_opcode;
|
|
unsigned int callout_length = (*cc == OP_CALLOUT)
|
|
? PRIV(OP_lengths)[OP_CALLOUT] : GET(cc, 1 + 2 * LINK_SIZE);
|
|
sljit_sw value1;
|
|
sljit_sw value2;
|
|
sljit_sw value3;
|
|
|
|
PUSH_BACKTRACK(sizeof(backtrack_common), cc, NULL);
|
|
|
|
allocate_stack(common, CALLOUT_ARG_SIZE / sizeof(sljit_sw));
|
|
|
|
SLJIT_ASSERT(common->capture_last_ptr != 0);
|
|
OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(SLJIT_SP), common->capture_last_ptr);
|
|
OP1(SLJIT_MOV, TMP1, 0, ARGUMENTS, 0);
|
|
value1 = (*cc == OP_CALLOUT) ? cc[1 + 2 * LINK_SIZE] : 0;
|
|
OP1(SLJIT_MOV_U32, SLJIT_MEM1(STACK_TOP), CALLOUT_ARG_OFFSET(callout_number), SLJIT_IMM, value1);
|
|
OP1(SLJIT_MOV_U32, SLJIT_MEM1(STACK_TOP), CALLOUT_ARG_OFFSET(capture_last), TMP2, 0);
|
|
|
|
/* These pointer sized fields temporarly stores internal variables. */
|
|
OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(SLJIT_SP), OVECTOR(0));
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), CALLOUT_ARG_OFFSET(offset_vector), STR_PTR, 0);
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), CALLOUT_ARG_OFFSET(subject), TMP2, 0);
|
|
|
|
if (common->mark_ptr != 0)
|
|
OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(TMP1), SLJIT_OFFSETOF(jit_arguments, mark_ptr));
|
|
mov_opcode = (sizeof(PCRE2_SIZE) == 4) ? SLJIT_MOV_U32 : SLJIT_MOV;
|
|
OP1(mov_opcode, SLJIT_MEM1(STACK_TOP), CALLOUT_ARG_OFFSET(pattern_position), SLJIT_IMM, GET(cc, 1));
|
|
OP1(mov_opcode, SLJIT_MEM1(STACK_TOP), CALLOUT_ARG_OFFSET(next_item_length), SLJIT_IMM, GET(cc, 1 + LINK_SIZE));
|
|
|
|
if (*cc == OP_CALLOUT)
|
|
{
|
|
value1 = 0;
|
|
value2 = 0;
|
|
value3 = 0;
|
|
}
|
|
else
|
|
{
|
|
value1 = (sljit_sw) (cc + (1 + 4*LINK_SIZE) + 1);
|
|
value2 = (callout_length - (1 + 4*LINK_SIZE + 2));
|
|
value3 = (sljit_sw) (GET(cc, 1 + 3*LINK_SIZE));
|
|
}
|
|
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), CALLOUT_ARG_OFFSET(callout_string), SLJIT_IMM, value1);
|
|
OP1(mov_opcode, SLJIT_MEM1(STACK_TOP), CALLOUT_ARG_OFFSET(callout_string_length), SLJIT_IMM, value2);
|
|
OP1(mov_opcode, SLJIT_MEM1(STACK_TOP), CALLOUT_ARG_OFFSET(callout_string_offset), SLJIT_IMM, value3);
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), CALLOUT_ARG_OFFSET(mark), (common->mark_ptr != 0) ? TMP2 : SLJIT_IMM, 0);
|
|
|
|
/* Needed to save important temporary registers. */
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), LOCALS0, STACK_TOP, 0);
|
|
OP2(SLJIT_SUB, SLJIT_R1, 0, STACK_TOP, 0, SLJIT_IMM, CALLOUT_ARG_SIZE);
|
|
GET_LOCAL_BASE(SLJIT_R2, 0, OVECTOR_START);
|
|
sljit_emit_ijump(compiler, SLJIT_CALL3, SLJIT_IMM, SLJIT_FUNC_OFFSET(do_callout));
|
|
OP1(SLJIT_MOV_S32, SLJIT_RETURN_REG, 0, SLJIT_RETURN_REG, 0);
|
|
OP1(SLJIT_MOV, STACK_TOP, 0, SLJIT_MEM1(SLJIT_SP), LOCALS0);
|
|
free_stack(common, CALLOUT_ARG_SIZE / sizeof(sljit_sw));
|
|
|
|
/* Check return value. */
|
|
OP2(SLJIT_SUB | SLJIT_SET_S, SLJIT_UNUSED, 0, SLJIT_RETURN_REG, 0, SLJIT_IMM, 0);
|
|
add_jump(compiler, &backtrack->topbacktracks, JUMP(SLJIT_SIG_GREATER));
|
|
if (common->forced_quit_label == NULL)
|
|
add_jump(compiler, &common->forced_quit, JUMP(SLJIT_SIG_LESS));
|
|
else
|
|
JUMPTO(SLJIT_SIG_LESS, common->forced_quit_label);
|
|
return cc + callout_length;
|
|
}
|
|
|
|
#undef CALLOUT_ARG_SIZE
|
|
#undef CALLOUT_ARG_OFFSET
|
|
|
|
static SLJIT_INLINE BOOL assert_needs_str_ptr_saving(PCRE2_SPTR cc)
|
|
{
|
|
while (TRUE)
|
|
{
|
|
switch (*cc)
|
|
{
|
|
case OP_CALLOUT_STR:
|
|
cc += GET(cc, 1 + 2*LINK_SIZE);
|
|
break;
|
|
|
|
case OP_NOT_WORD_BOUNDARY:
|
|
case OP_WORD_BOUNDARY:
|
|
case OP_CIRC:
|
|
case OP_CIRCM:
|
|
case OP_DOLL:
|
|
case OP_DOLLM:
|
|
case OP_CALLOUT:
|
|
case OP_ALT:
|
|
cc += PRIV(OP_lengths)[*cc];
|
|
break;
|
|
|
|
case OP_KET:
|
|
return FALSE;
|
|
|
|
default:
|
|
return TRUE;
|
|
}
|
|
}
|
|
}
|
|
|
|
static PCRE2_SPTR compile_assert_matchingpath(compiler_common *common, PCRE2_SPTR cc, assert_backtrack *backtrack, BOOL conditional)
|
|
{
|
|
DEFINE_COMPILER;
|
|
int framesize;
|
|
int extrasize;
|
|
BOOL needs_control_head;
|
|
int private_data_ptr;
|
|
backtrack_common altbacktrack;
|
|
PCRE2_SPTR ccbegin;
|
|
PCRE2_UCHAR opcode;
|
|
PCRE2_UCHAR bra = OP_BRA;
|
|
jump_list *tmp = NULL;
|
|
jump_list **target = (conditional) ? &backtrack->condfailed : &backtrack->common.topbacktracks;
|
|
jump_list **found;
|
|
/* Saving previous accept variables. */
|
|
BOOL save_local_exit = common->local_exit;
|
|
BOOL save_positive_assert = common->positive_assert;
|
|
then_trap_backtrack *save_then_trap = common->then_trap;
|
|
struct sljit_label *save_quit_label = common->quit_label;
|
|
struct sljit_label *save_accept_label = common->accept_label;
|
|
jump_list *save_quit = common->quit;
|
|
jump_list *save_positive_assert_quit = common->positive_assert_quit;
|
|
jump_list *save_accept = common->accept;
|
|
struct sljit_jump *jump;
|
|
struct sljit_jump *brajump = NULL;
|
|
|
|
/* Assert captures then. */
|
|
common->then_trap = NULL;
|
|
|
|
if (*cc == OP_BRAZERO || *cc == OP_BRAMINZERO)
|
|
{
|
|
SLJIT_ASSERT(!conditional);
|
|
bra = *cc;
|
|
cc++;
|
|
}
|
|
private_data_ptr = PRIVATE_DATA(cc);
|
|
SLJIT_ASSERT(private_data_ptr != 0);
|
|
framesize = get_framesize(common, cc, NULL, FALSE, &needs_control_head);
|
|
backtrack->framesize = framesize;
|
|
backtrack->private_data_ptr = private_data_ptr;
|
|
opcode = *cc;
|
|
SLJIT_ASSERT(opcode >= OP_ASSERT && opcode <= OP_ASSERTBACK_NOT);
|
|
found = (opcode == OP_ASSERT || opcode == OP_ASSERTBACK) ? &tmp : target;
|
|
ccbegin = cc;
|
|
cc += GET(cc, 1);
|
|
|
|
if (bra == OP_BRAMINZERO)
|
|
{
|
|
/* This is a braminzero backtrack path. */
|
|
OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_MEM1(STACK_TOP), STACK(0));
|
|
free_stack(common, 1);
|
|
brajump = CMP(SLJIT_EQUAL, STR_PTR, 0, SLJIT_IMM, 0);
|
|
}
|
|
|
|
if (framesize < 0)
|
|
{
|
|
extrasize = 1;
|
|
if (bra == OP_BRA && !assert_needs_str_ptr_saving(ccbegin + 1 + LINK_SIZE))
|
|
extrasize = 0;
|
|
|
|
if (needs_control_head)
|
|
extrasize++;
|
|
|
|
if (framesize == no_frame)
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), private_data_ptr, STACK_TOP, 0);
|
|
|
|
if (extrasize > 0)
|
|
allocate_stack(common, extrasize);
|
|
|
|
if (needs_control_head)
|
|
OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_SP), common->control_head_ptr);
|
|
|
|
if (extrasize > 0)
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), STR_PTR, 0);
|
|
|
|
if (needs_control_head)
|
|
{
|
|
SLJIT_ASSERT(extrasize == 2);
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), common->control_head_ptr, SLJIT_IMM, 0);
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(1), TMP1, 0);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
extrasize = needs_control_head ? 3 : 2;
|
|
allocate_stack(common, framesize + extrasize);
|
|
|
|
OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_SP), private_data_ptr);
|
|
OP2(SLJIT_SUB, TMP2, 0, STACK_TOP, 0, SLJIT_IMM, (framesize + extrasize) * sizeof(sljit_sw));
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), private_data_ptr, TMP2, 0);
|
|
if (needs_control_head)
|
|
OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(SLJIT_SP), common->control_head_ptr);
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), STR_PTR, 0);
|
|
|
|
if (needs_control_head)
|
|
{
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(2), TMP1, 0);
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(1), TMP2, 0);
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), common->control_head_ptr, SLJIT_IMM, 0);
|
|
}
|
|
else
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(1), TMP1, 0);
|
|
|
|
init_frame(common, ccbegin, NULL, framesize + extrasize - 1, extrasize, FALSE);
|
|
}
|
|
|
|
memset(&altbacktrack, 0, sizeof(backtrack_common));
|
|
if (opcode == OP_ASSERT_NOT || opcode == OP_ASSERTBACK_NOT)
|
|
{
|
|
/* Negative assert is stronger than positive assert. */
|
|
common->local_exit = TRUE;
|
|
common->quit_label = NULL;
|
|
common->quit = NULL;
|
|
common->positive_assert = FALSE;
|
|
}
|
|
else
|
|
common->positive_assert = TRUE;
|
|
common->positive_assert_quit = NULL;
|
|
|
|
while (1)
|
|
{
|
|
common->accept_label = NULL;
|
|
common->accept = NULL;
|
|
altbacktrack.top = NULL;
|
|
altbacktrack.topbacktracks = NULL;
|
|
|
|
if (*ccbegin == OP_ALT && extrasize > 0)
|
|
OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_MEM1(STACK_TOP), STACK(0));
|
|
|
|
altbacktrack.cc = ccbegin;
|
|
compile_matchingpath(common, ccbegin + 1 + LINK_SIZE, cc, &altbacktrack);
|
|
if (SLJIT_UNLIKELY(sljit_get_compiler_error(compiler)))
|
|
{
|
|
if (opcode == OP_ASSERT_NOT || opcode == OP_ASSERTBACK_NOT)
|
|
{
|
|
common->local_exit = save_local_exit;
|
|
common->quit_label = save_quit_label;
|
|
common->quit = save_quit;
|
|
}
|
|
common->positive_assert = save_positive_assert;
|
|
common->then_trap = save_then_trap;
|
|
common->accept_label = save_accept_label;
|
|
common->positive_assert_quit = save_positive_assert_quit;
|
|
common->accept = save_accept;
|
|
return NULL;
|
|
}
|
|
common->accept_label = LABEL();
|
|
if (common->accept != NULL)
|
|
set_jumps(common->accept, common->accept_label);
|
|
|
|
/* Reset stack. */
|
|
if (framesize < 0)
|
|
{
|
|
if (framesize == no_frame)
|
|
OP1(SLJIT_MOV, STACK_TOP, 0, SLJIT_MEM1(SLJIT_SP), private_data_ptr);
|
|
else if (extrasize > 0)
|
|
free_stack(common, extrasize);
|
|
|
|
if (needs_control_head)
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), common->control_head_ptr, SLJIT_MEM1(STACK_TOP), 0);
|
|
}
|
|
else
|
|
{
|
|
if ((opcode != OP_ASSERT_NOT && opcode != OP_ASSERTBACK_NOT) || conditional)
|
|
{
|
|
/* We don't need to keep the STR_PTR, only the previous private_data_ptr. */
|
|
OP2(SLJIT_ADD, STACK_TOP, 0, SLJIT_MEM1(SLJIT_SP), private_data_ptr, SLJIT_IMM, (framesize + 1) * sizeof(sljit_sw));
|
|
if (needs_control_head)
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), common->control_head_ptr, SLJIT_MEM1(STACK_TOP), 0);
|
|
}
|
|
else
|
|
{
|
|
OP1(SLJIT_MOV, STACK_TOP, 0, SLJIT_MEM1(SLJIT_SP), private_data_ptr);
|
|
if (needs_control_head)
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), common->control_head_ptr, SLJIT_MEM1(STACK_TOP), (framesize + 1) * sizeof(sljit_sw));
|
|
add_jump(compiler, &common->revertframes, JUMP(SLJIT_FAST_CALL));
|
|
}
|
|
}
|
|
|
|
if (opcode == OP_ASSERT_NOT || opcode == OP_ASSERTBACK_NOT)
|
|
{
|
|
/* We know that STR_PTR was stored on the top of the stack. */
|
|
if (conditional)
|
|
{
|
|
if (extrasize > 0)
|
|
OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_MEM1(STACK_TOP), needs_control_head ? sizeof(sljit_sw) : 0);
|
|
}
|
|
else if (bra == OP_BRAZERO)
|
|
{
|
|
if (framesize < 0)
|
|
OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_MEM1(STACK_TOP), (extrasize - 1) * sizeof(sljit_sw));
|
|
else
|
|
{
|
|
OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(STACK_TOP), framesize * sizeof(sljit_sw));
|
|
OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_MEM1(STACK_TOP), (framesize + extrasize - 1) * sizeof(sljit_sw));
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), private_data_ptr, TMP1, 0);
|
|
}
|
|
OP2(SLJIT_ADD, STACK_TOP, 0, STACK_TOP, 0, SLJIT_IMM, sizeof(sljit_sw));
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), SLJIT_IMM, 0);
|
|
}
|
|
else if (framesize >= 0)
|
|
{
|
|
/* For OP_BRA and OP_BRAMINZERO. */
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), private_data_ptr, SLJIT_MEM1(STACK_TOP), framesize * sizeof(sljit_sw));
|
|
}
|
|
}
|
|
add_jump(compiler, found, JUMP(SLJIT_JUMP));
|
|
|
|
compile_backtrackingpath(common, altbacktrack.top);
|
|
if (SLJIT_UNLIKELY(sljit_get_compiler_error(compiler)))
|
|
{
|
|
if (opcode == OP_ASSERT_NOT || opcode == OP_ASSERTBACK_NOT)
|
|
{
|
|
common->local_exit = save_local_exit;
|
|
common->quit_label = save_quit_label;
|
|
common->quit = save_quit;
|
|
}
|
|
common->positive_assert = save_positive_assert;
|
|
common->then_trap = save_then_trap;
|
|
common->accept_label = save_accept_label;
|
|
common->positive_assert_quit = save_positive_assert_quit;
|
|
common->accept = save_accept;
|
|
return NULL;
|
|
}
|
|
set_jumps(altbacktrack.topbacktracks, LABEL());
|
|
|
|
if (*cc != OP_ALT)
|
|
break;
|
|
|
|
ccbegin = cc;
|
|
cc += GET(cc, 1);
|
|
}
|
|
|
|
if (opcode == OP_ASSERT_NOT || opcode == OP_ASSERTBACK_NOT)
|
|
{
|
|
SLJIT_ASSERT(common->positive_assert_quit == NULL);
|
|
/* Makes the check less complicated below. */
|
|
common->positive_assert_quit = common->quit;
|
|
}
|
|
|
|
/* None of them matched. */
|
|
if (common->positive_assert_quit != NULL)
|
|
{
|
|
jump = JUMP(SLJIT_JUMP);
|
|
set_jumps(common->positive_assert_quit, LABEL());
|
|
SLJIT_ASSERT(framesize != no_stack);
|
|
if (framesize < 0)
|
|
OP2(SLJIT_ADD, STACK_TOP, 0, SLJIT_MEM1(SLJIT_SP), private_data_ptr, SLJIT_IMM, extrasize * sizeof(sljit_sw));
|
|
else
|
|
{
|
|
OP1(SLJIT_MOV, STACK_TOP, 0, SLJIT_MEM1(SLJIT_SP), private_data_ptr);
|
|
add_jump(compiler, &common->revertframes, JUMP(SLJIT_FAST_CALL));
|
|
OP2(SLJIT_ADD, STACK_TOP, 0, STACK_TOP, 0, SLJIT_IMM, (framesize + extrasize) * sizeof(sljit_sw));
|
|
}
|
|
JUMPHERE(jump);
|
|
}
|
|
|
|
if (needs_control_head)
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), common->control_head_ptr, SLJIT_MEM1(STACK_TOP), STACK(1));
|
|
|
|
if (opcode == OP_ASSERT || opcode == OP_ASSERTBACK)
|
|
{
|
|
/* Assert is failed. */
|
|
if ((conditional && extrasize > 0) || bra == OP_BRAZERO)
|
|
OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_MEM1(STACK_TOP), STACK(0));
|
|
|
|
if (framesize < 0)
|
|
{
|
|
/* The topmost item should be 0. */
|
|
if (bra == OP_BRAZERO)
|
|
{
|
|
if (extrasize == 2)
|
|
free_stack(common, 1);
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), SLJIT_IMM, 0);
|
|
}
|
|
else if (extrasize > 0)
|
|
free_stack(common, extrasize);
|
|
}
|
|
else
|
|
{
|
|
OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(STACK_TOP), STACK(extrasize - 1));
|
|
/* The topmost item should be 0. */
|
|
if (bra == OP_BRAZERO)
|
|
{
|
|
free_stack(common, framesize + extrasize - 1);
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), SLJIT_IMM, 0);
|
|
}
|
|
else
|
|
free_stack(common, framesize + extrasize);
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), private_data_ptr, TMP1, 0);
|
|
}
|
|
jump = JUMP(SLJIT_JUMP);
|
|
if (bra != OP_BRAZERO)
|
|
add_jump(compiler, target, jump);
|
|
|
|
/* Assert is successful. */
|
|
set_jumps(tmp, LABEL());
|
|
if (framesize < 0)
|
|
{
|
|
/* We know that STR_PTR was stored on the top of the stack. */
|
|
if (extrasize > 0)
|
|
OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_MEM1(STACK_TOP), (extrasize - 1) * sizeof(sljit_sw));
|
|
|
|
/* Keep the STR_PTR on the top of the stack. */
|
|
if (bra == OP_BRAZERO)
|
|
{
|
|
OP2(SLJIT_ADD, STACK_TOP, 0, STACK_TOP, 0, SLJIT_IMM, sizeof(sljit_sw));
|
|
if (extrasize == 2)
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), STR_PTR, 0);
|
|
}
|
|
else if (bra == OP_BRAMINZERO)
|
|
{
|
|
OP2(SLJIT_ADD, STACK_TOP, 0, STACK_TOP, 0, SLJIT_IMM, sizeof(sljit_sw));
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), SLJIT_IMM, 0);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if (bra == OP_BRA)
|
|
{
|
|
/* We don't need to keep the STR_PTR, only the previous private_data_ptr. */
|
|
OP2(SLJIT_ADD, STACK_TOP, 0, SLJIT_MEM1(SLJIT_SP), private_data_ptr, SLJIT_IMM, (framesize + 1) * sizeof(sljit_sw));
|
|
OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_MEM1(STACK_TOP), (extrasize - 2) * sizeof(sljit_sw));
|
|
}
|
|
else
|
|
{
|
|
/* We don't need to keep the STR_PTR, only the previous private_data_ptr. */
|
|
OP2(SLJIT_ADD, STACK_TOP, 0, SLJIT_MEM1(SLJIT_SP), private_data_ptr, SLJIT_IMM, (framesize + 2) * sizeof(sljit_sw));
|
|
if (extrasize == 2)
|
|
{
|
|
OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_MEM1(STACK_TOP), STACK(0));
|
|
if (bra == OP_BRAMINZERO)
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), SLJIT_IMM, 0);
|
|
}
|
|
else
|
|
{
|
|
OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_MEM1(STACK_TOP), 0);
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), bra == OP_BRAZERO ? STR_PTR : SLJIT_IMM, 0);
|
|
}
|
|
}
|
|
}
|
|
|
|
if (bra == OP_BRAZERO)
|
|
{
|
|
backtrack->matchingpath = LABEL();
|
|
SET_LABEL(jump, backtrack->matchingpath);
|
|
}
|
|
else if (bra == OP_BRAMINZERO)
|
|
{
|
|
JUMPTO(SLJIT_JUMP, backtrack->matchingpath);
|
|
JUMPHERE(brajump);
|
|
if (framesize >= 0)
|
|
{
|
|
OP1(SLJIT_MOV, STACK_TOP, 0, SLJIT_MEM1(SLJIT_SP), private_data_ptr);
|
|
add_jump(compiler, &common->revertframes, JUMP(SLJIT_FAST_CALL));
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), private_data_ptr, SLJIT_MEM1(STACK_TOP), framesize * sizeof(sljit_sw));
|
|
}
|
|
set_jumps(backtrack->common.topbacktracks, LABEL());
|
|
}
|
|
}
|
|
else
|
|
{
|
|
/* AssertNot is successful. */
|
|
if (framesize < 0)
|
|
{
|
|
if (extrasize > 0)
|
|
OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_MEM1(STACK_TOP), STACK(0));
|
|
|
|
if (bra != OP_BRA)
|
|
{
|
|
if (extrasize == 2)
|
|
free_stack(common, 1);
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), SLJIT_IMM, 0);
|
|
}
|
|
else if (extrasize > 0)
|
|
free_stack(common, extrasize);
|
|
}
|
|
else
|
|
{
|
|
OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_MEM1(STACK_TOP), STACK(0));
|
|
OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(STACK_TOP), STACK(extrasize - 1));
|
|
/* The topmost item should be 0. */
|
|
if (bra != OP_BRA)
|
|
{
|
|
free_stack(common, framesize + extrasize - 1);
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), SLJIT_IMM, 0);
|
|
}
|
|
else
|
|
free_stack(common, framesize + extrasize);
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), private_data_ptr, TMP1, 0);
|
|
}
|
|
|
|
if (bra == OP_BRAZERO)
|
|
backtrack->matchingpath = LABEL();
|
|
else if (bra == OP_BRAMINZERO)
|
|
{
|
|
JUMPTO(SLJIT_JUMP, backtrack->matchingpath);
|
|
JUMPHERE(brajump);
|
|
}
|
|
|
|
if (bra != OP_BRA)
|
|
{
|
|
SLJIT_ASSERT(found == &backtrack->common.topbacktracks);
|
|
set_jumps(backtrack->common.topbacktracks, LABEL());
|
|
backtrack->common.topbacktracks = NULL;
|
|
}
|
|
}
|
|
|
|
if (opcode == OP_ASSERT_NOT || opcode == OP_ASSERTBACK_NOT)
|
|
{
|
|
common->local_exit = save_local_exit;
|
|
common->quit_label = save_quit_label;
|
|
common->quit = save_quit;
|
|
}
|
|
common->positive_assert = save_positive_assert;
|
|
common->then_trap = save_then_trap;
|
|
common->accept_label = save_accept_label;
|
|
common->positive_assert_quit = save_positive_assert_quit;
|
|
common->accept = save_accept;
|
|
return cc + 1 + LINK_SIZE;
|
|
}
|
|
|
|
static SLJIT_INLINE void match_once_common(compiler_common *common, PCRE2_UCHAR ket, int framesize, int private_data_ptr, BOOL has_alternatives, BOOL needs_control_head)
|
|
{
|
|
DEFINE_COMPILER;
|
|
int stacksize;
|
|
|
|
if (framesize < 0)
|
|
{
|
|
if (framesize == no_frame)
|
|
OP1(SLJIT_MOV, STACK_TOP, 0, SLJIT_MEM1(SLJIT_SP), private_data_ptr);
|
|
else
|
|
{
|
|
stacksize = needs_control_head ? 1 : 0;
|
|
if (ket != OP_KET || has_alternatives)
|
|
stacksize++;
|
|
|
|
if (stacksize > 0)
|
|
free_stack(common, stacksize);
|
|
}
|
|
|
|
if (needs_control_head)
|
|
OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(STACK_TOP), (ket != OP_KET || has_alternatives) ? sizeof(sljit_sw) : 0);
|
|
|
|
/* TMP2 which is set here used by OP_KETRMAX below. */
|
|
if (ket == OP_KETRMAX)
|
|
OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(STACK_TOP), 0);
|
|
else if (ket == OP_KETRMIN)
|
|
{
|
|
/* Move the STR_PTR to the private_data_ptr. */
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), private_data_ptr, SLJIT_MEM1(STACK_TOP), 0);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
stacksize = (ket != OP_KET || has_alternatives) ? 2 : 1;
|
|
OP2(SLJIT_ADD, STACK_TOP, 0, SLJIT_MEM1(SLJIT_SP), private_data_ptr, SLJIT_IMM, (framesize + stacksize) * sizeof(sljit_sw));
|
|
if (needs_control_head)
|
|
OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(STACK_TOP), 0);
|
|
|
|
if (ket == OP_KETRMAX)
|
|
{
|
|
/* TMP2 which is set here used by OP_KETRMAX below. */
|
|
OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(STACK_TOP), STACK(0));
|
|
}
|
|
}
|
|
if (needs_control_head)
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), common->control_head_ptr, TMP1, 0);
|
|
}
|
|
|
|
static SLJIT_INLINE int match_capture_common(compiler_common *common, int stacksize, int offset, int private_data_ptr)
|
|
{
|
|
DEFINE_COMPILER;
|
|
|
|
if (common->capture_last_ptr != 0)
|
|
{
|
|
OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_SP), common->capture_last_ptr);
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), common->capture_last_ptr, SLJIT_IMM, offset >> 1);
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(stacksize), TMP1, 0);
|
|
stacksize++;
|
|
}
|
|
if (common->optimized_cbracket[offset >> 1] == 0)
|
|
{
|
|
OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_SP), OVECTOR(offset));
|
|
OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(SLJIT_SP), OVECTOR(offset + 1));
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(stacksize), TMP1, 0);
|
|
OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_SP), private_data_ptr);
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(stacksize + 1), TMP2, 0);
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), OVECTOR(offset + 1), STR_PTR, 0);
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), OVECTOR(offset), TMP1, 0);
|
|
stacksize += 2;
|
|
}
|
|
return stacksize;
|
|
}
|
|
|
|
/*
|
|
Handling bracketed expressions is probably the most complex part.
|
|
|
|
Stack layout naming characters:
|
|
S - Push the current STR_PTR
|
|
0 - Push a 0 (NULL)
|
|
A - Push the current STR_PTR. Needed for restoring the STR_PTR
|
|
before the next alternative. Not pushed if there are no alternatives.
|
|
M - Any values pushed by the current alternative. Can be empty, or anything.
|
|
C - Push the previous OVECTOR(i), OVECTOR(i+1) and OVECTOR_PRIV(i) to the stack.
|
|
L - Push the previous local (pointed by localptr) to the stack
|
|
() - opional values stored on the stack
|
|
()* - optonal, can be stored multiple times
|
|
|
|
The following list shows the regular expression templates, their PCRE byte codes
|
|
and stack layout supported by pcre-sljit.
|
|
|
|
(?:) OP_BRA | OP_KET A M
|
|
() OP_CBRA | OP_KET C M
|
|
(?:)+ OP_BRA | OP_KETRMAX 0 A M S ( A M S )*
|
|
OP_SBRA | OP_KETRMAX 0 L M S ( L M S )*
|
|
(?:)+? OP_BRA | OP_KETRMIN 0 A M S ( A M S )*
|
|
OP_SBRA | OP_KETRMIN 0 L M S ( L M S )*
|
|
()+ OP_CBRA | OP_KETRMAX 0 C M S ( C M S )*
|
|
OP_SCBRA | OP_KETRMAX 0 C M S ( C M S )*
|
|
()+? OP_CBRA | OP_KETRMIN 0 C M S ( C M S )*
|
|
OP_SCBRA | OP_KETRMIN 0 C M S ( C M S )*
|
|
(?:)? OP_BRAZERO | OP_BRA | OP_KET S ( A M 0 )
|
|
(?:)?? OP_BRAMINZERO | OP_BRA | OP_KET S ( A M 0 )
|
|
()? OP_BRAZERO | OP_CBRA | OP_KET S ( C M 0 )
|
|
()?? OP_BRAMINZERO | OP_CBRA | OP_KET S ( C M 0 )
|
|
(?:)* OP_BRAZERO | OP_BRA | OP_KETRMAX S 0 ( A M S )*
|
|
OP_BRAZERO | OP_SBRA | OP_KETRMAX S 0 ( L M S )*
|
|
(?:)*? OP_BRAMINZERO | OP_BRA | OP_KETRMIN S 0 ( A M S )*
|
|
OP_BRAMINZERO | OP_SBRA | OP_KETRMIN S 0 ( L M S )*
|
|
()* OP_BRAZERO | OP_CBRA | OP_KETRMAX S 0 ( C M S )*
|
|
OP_BRAZERO | OP_SCBRA | OP_KETRMAX S 0 ( C M S )*
|
|
()*? OP_BRAMINZERO | OP_CBRA | OP_KETRMIN S 0 ( C M S )*
|
|
OP_BRAMINZERO | OP_SCBRA | OP_KETRMIN S 0 ( C M S )*
|
|
|
|
|
|
Stack layout naming characters:
|
|
A - Push the alternative index (starting from 0) on the stack.
|
|
Not pushed if there is no alternatives.
|
|
M - Any values pushed by the current alternative. Can be empty, or anything.
|
|
|
|
The next list shows the possible content of a bracket:
|
|
(|) OP_*BRA | OP_ALT ... M A
|
|
(?()|) OP_*COND | OP_ALT M A
|
|
(?>|) OP_ONCE | OP_ALT ... [stack trace] M A
|
|
(?>|) OP_ONCE_NC | OP_ALT ... [stack trace] M A
|
|
Or nothing, if trace is unnecessary
|
|
*/
|
|
|
|
static PCRE2_SPTR compile_bracket_matchingpath(compiler_common *common, PCRE2_SPTR cc, backtrack_common *parent)
|
|
{
|
|
DEFINE_COMPILER;
|
|
backtrack_common *backtrack;
|
|
PCRE2_UCHAR opcode;
|
|
int private_data_ptr = 0;
|
|
int offset = 0;
|
|
int i, stacksize;
|
|
int repeat_ptr = 0, repeat_length = 0;
|
|
int repeat_type = 0, repeat_count = 0;
|
|
PCRE2_SPTR ccbegin;
|
|
PCRE2_SPTR matchingpath;
|
|
PCRE2_SPTR slot;
|
|
PCRE2_UCHAR bra = OP_BRA;
|
|
PCRE2_UCHAR ket;
|
|
assert_backtrack *assert;
|
|
BOOL has_alternatives;
|
|
BOOL needs_control_head = FALSE;
|
|
struct sljit_jump *jump;
|
|
struct sljit_jump *skip;
|
|
struct sljit_label *rmax_label = NULL;
|
|
struct sljit_jump *braminzero = NULL;
|
|
|
|
PUSH_BACKTRACK(sizeof(bracket_backtrack), cc, NULL);
|
|
|
|
if (*cc == OP_BRAZERO || *cc == OP_BRAMINZERO)
|
|
{
|
|
bra = *cc;
|
|
cc++;
|
|
opcode = *cc;
|
|
}
|
|
|
|
opcode = *cc;
|
|
ccbegin = cc;
|
|
matchingpath = bracketend(cc) - 1 - LINK_SIZE;
|
|
ket = *matchingpath;
|
|
if (ket == OP_KET && PRIVATE_DATA(matchingpath) != 0)
|
|
{
|
|
repeat_ptr = PRIVATE_DATA(matchingpath);
|
|
repeat_length = PRIVATE_DATA(matchingpath + 1);
|
|
repeat_type = PRIVATE_DATA(matchingpath + 2);
|
|
repeat_count = PRIVATE_DATA(matchingpath + 3);
|
|
SLJIT_ASSERT(repeat_length != 0 && repeat_type != 0 && repeat_count != 0);
|
|
if (repeat_type == OP_UPTO)
|
|
ket = OP_KETRMAX;
|
|
if (repeat_type == OP_MINUPTO)
|
|
ket = OP_KETRMIN;
|
|
}
|
|
|
|
matchingpath = ccbegin + 1 + LINK_SIZE;
|
|
SLJIT_ASSERT(ket == OP_KET || ket == OP_KETRMAX || ket == OP_KETRMIN);
|
|
SLJIT_ASSERT(!((bra == OP_BRAZERO && ket == OP_KETRMIN) || (bra == OP_BRAMINZERO && ket == OP_KETRMAX)));
|
|
cc += GET(cc, 1);
|
|
|
|
has_alternatives = *cc == OP_ALT;
|
|
if (SLJIT_UNLIKELY(opcode == OP_COND || opcode == OP_SCOND))
|
|
{
|
|
SLJIT_COMPILE_ASSERT(OP_DNRREF == OP_RREF + 1 && OP_FALSE == OP_RREF + 2 && OP_TRUE == OP_RREF + 3,
|
|
compile_time_checks_must_be_grouped_together);
|
|
has_alternatives = ((*matchingpath >= OP_RREF && *matchingpath <= OP_TRUE) || *matchingpath == OP_FAIL) ? FALSE : TRUE;
|
|
}
|
|
|
|
if (SLJIT_UNLIKELY(opcode == OP_COND) && (*cc == OP_KETRMAX || *cc == OP_KETRMIN))
|
|
opcode = OP_SCOND;
|
|
if (SLJIT_UNLIKELY(opcode == OP_ONCE_NC))
|
|
opcode = OP_ONCE;
|
|
|
|
if (opcode == OP_CBRA || opcode == OP_SCBRA)
|
|
{
|
|
/* Capturing brackets has a pre-allocated space. */
|
|
offset = GET2(ccbegin, 1 + LINK_SIZE);
|
|
if (common->optimized_cbracket[offset] == 0)
|
|
{
|
|
private_data_ptr = OVECTOR_PRIV(offset);
|
|
offset <<= 1;
|
|
}
|
|
else
|
|
{
|
|
offset <<= 1;
|
|
private_data_ptr = OVECTOR(offset);
|
|
}
|
|
BACKTRACK_AS(bracket_backtrack)->private_data_ptr = private_data_ptr;
|
|
matchingpath += IMM2_SIZE;
|
|
}
|
|
else if (opcode == OP_ONCE || opcode == OP_SBRA || opcode == OP_SCOND)
|
|
{
|
|
/* Other brackets simply allocate the next entry. */
|
|
private_data_ptr = PRIVATE_DATA(ccbegin);
|
|
SLJIT_ASSERT(private_data_ptr != 0);
|
|
BACKTRACK_AS(bracket_backtrack)->private_data_ptr = private_data_ptr;
|
|
if (opcode == OP_ONCE)
|
|
BACKTRACK_AS(bracket_backtrack)->u.framesize = get_framesize(common, ccbegin, NULL, FALSE, &needs_control_head);
|
|
}
|
|
|
|
/* Instructions before the first alternative. */
|
|
stacksize = 0;
|
|
if (ket == OP_KETRMAX || (ket == OP_KETRMIN && bra != OP_BRAMINZERO))
|
|
stacksize++;
|
|
if (bra == OP_BRAZERO)
|
|
stacksize++;
|
|
|
|
if (stacksize > 0)
|
|
allocate_stack(common, stacksize);
|
|
|
|
stacksize = 0;
|
|
if (ket == OP_KETRMAX || (ket == OP_KETRMIN && bra != OP_BRAMINZERO))
|
|
{
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(stacksize), SLJIT_IMM, 0);
|
|
stacksize++;
|
|
}
|
|
|
|
if (bra == OP_BRAZERO)
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(stacksize), STR_PTR, 0);
|
|
|
|
if (bra == OP_BRAMINZERO)
|
|
{
|
|
/* This is a backtrack path! (Since the try-path of OP_BRAMINZERO matches to the empty string) */
|
|
OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_MEM1(STACK_TOP), STACK(0));
|
|
if (ket != OP_KETRMIN)
|
|
{
|
|
free_stack(common, 1);
|
|
braminzero = CMP(SLJIT_EQUAL, STR_PTR, 0, SLJIT_IMM, 0);
|
|
}
|
|
else
|
|
{
|
|
if (opcode == OP_ONCE || opcode >= OP_SBRA)
|
|
{
|
|
jump = CMP(SLJIT_NOT_EQUAL, STR_PTR, 0, SLJIT_IMM, 0);
|
|
OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_MEM1(STACK_TOP), STACK(1));
|
|
/* Nothing stored during the first run. */
|
|
skip = JUMP(SLJIT_JUMP);
|
|
JUMPHERE(jump);
|
|
/* Checking zero-length iteration. */
|
|
if (opcode != OP_ONCE || BACKTRACK_AS(bracket_backtrack)->u.framesize < 0)
|
|
{
|
|
/* When we come from outside, private_data_ptr contains the previous STR_PTR. */
|
|
braminzero = CMP(SLJIT_EQUAL, STR_PTR, 0, SLJIT_MEM1(SLJIT_SP), private_data_ptr);
|
|
}
|
|
else
|
|
{
|
|
/* Except when the whole stack frame must be saved. */
|
|
OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_SP), private_data_ptr);
|
|
braminzero = CMP(SLJIT_EQUAL, STR_PTR, 0, SLJIT_MEM1(TMP1), (BACKTRACK_AS(bracket_backtrack)->u.framesize + 1) * sizeof(sljit_sw));
|
|
}
|
|
JUMPHERE(skip);
|
|
}
|
|
else
|
|
{
|
|
jump = CMP(SLJIT_NOT_EQUAL, STR_PTR, 0, SLJIT_IMM, 0);
|
|
OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_MEM1(STACK_TOP), STACK(1));
|
|
JUMPHERE(jump);
|
|
}
|
|
}
|
|
}
|
|
|
|
if (repeat_type != 0)
|
|
{
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), repeat_ptr, SLJIT_IMM, repeat_count);
|
|
if (repeat_type == OP_EXACT)
|
|
rmax_label = LABEL();
|
|
}
|
|
|
|
if (ket == OP_KETRMIN)
|
|
BACKTRACK_AS(bracket_backtrack)->recursive_matchingpath = LABEL();
|
|
|
|
if (ket == OP_KETRMAX)
|
|
{
|
|
rmax_label = LABEL();
|
|
if (has_alternatives && opcode != OP_ONCE && opcode < OP_SBRA && repeat_type == 0)
|
|
BACKTRACK_AS(bracket_backtrack)->alternative_matchingpath = rmax_label;
|
|
}
|
|
|
|
/* Handling capturing brackets and alternatives. */
|
|
if (opcode == OP_ONCE)
|
|
{
|
|
stacksize = 0;
|
|
if (needs_control_head)
|
|
{
|
|
OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(SLJIT_SP), common->control_head_ptr);
|
|
stacksize++;
|
|
}
|
|
|
|
if (BACKTRACK_AS(bracket_backtrack)->u.framesize < 0)
|
|
{
|
|
/* Neither capturing brackets nor recursions are found in the block. */
|
|
if (ket == OP_KETRMIN)
|
|
{
|
|
stacksize += 2;
|
|
if (!needs_control_head)
|
|
OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(SLJIT_SP), private_data_ptr);
|
|
}
|
|
else
|
|
{
|
|
if (BACKTRACK_AS(bracket_backtrack)->u.framesize == no_frame)
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), private_data_ptr, STACK_TOP, 0);
|
|
if (ket == OP_KETRMAX || has_alternatives)
|
|
stacksize++;
|
|
}
|
|
|
|
if (stacksize > 0)
|
|
allocate_stack(common, stacksize);
|
|
|
|
stacksize = 0;
|
|
if (needs_control_head)
|
|
{
|
|
stacksize++;
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), TMP2, 0);
|
|
}
|
|
|
|
if (ket == OP_KETRMIN)
|
|
{
|
|
if (needs_control_head)
|
|
OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(SLJIT_SP), private_data_ptr);
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(stacksize), STR_PTR, 0);
|
|
if (BACKTRACK_AS(bracket_backtrack)->u.framesize == no_frame)
|
|
OP2(SLJIT_SUB, SLJIT_MEM1(SLJIT_SP), private_data_ptr, STACK_TOP, 0, SLJIT_IMM, needs_control_head ? (2 * sizeof(sljit_sw)) : sizeof(sljit_sw));
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(stacksize + 1), TMP2, 0);
|
|
}
|
|
else if (ket == OP_KETRMAX || has_alternatives)
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(stacksize), STR_PTR, 0);
|
|
}
|
|
else
|
|
{
|
|
if (ket != OP_KET || has_alternatives)
|
|
stacksize++;
|
|
|
|
stacksize += BACKTRACK_AS(bracket_backtrack)->u.framesize + 1;
|
|
allocate_stack(common, stacksize);
|
|
|
|
if (needs_control_head)
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), TMP2, 0);
|
|
|
|
OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_SP), private_data_ptr);
|
|
OP2(SLJIT_SUB, TMP2, 0, STACK_TOP, 0, SLJIT_IMM, stacksize * sizeof(sljit_sw));
|
|
|
|
stacksize = needs_control_head ? 1 : 0;
|
|
if (ket != OP_KET || has_alternatives)
|
|
{
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(stacksize), STR_PTR, 0);
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), private_data_ptr, TMP2, 0);
|
|
stacksize++;
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(stacksize), TMP1, 0);
|
|
}
|
|
else
|
|
{
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), private_data_ptr, TMP2, 0);
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(stacksize), TMP1, 0);
|
|
}
|
|
init_frame(common, ccbegin, NULL, BACKTRACK_AS(bracket_backtrack)->u.framesize + stacksize, stacksize + 1, FALSE);
|
|
}
|
|
}
|
|
else if (opcode == OP_CBRA || opcode == OP_SCBRA)
|
|
{
|
|
/* Saving the previous values. */
|
|
if (common->optimized_cbracket[offset >> 1] != 0)
|
|
{
|
|
SLJIT_ASSERT(private_data_ptr == OVECTOR(offset));
|
|
allocate_stack(common, 2);
|
|
OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_SP), private_data_ptr);
|
|
OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(SLJIT_SP), private_data_ptr + sizeof(sljit_sw));
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), private_data_ptr, STR_PTR, 0);
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), TMP1, 0);
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(1), TMP2, 0);
|
|
}
|
|
else
|
|
{
|
|
OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(SLJIT_SP), private_data_ptr);
|
|
allocate_stack(common, 1);
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), private_data_ptr, STR_PTR, 0);
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), TMP2, 0);
|
|
}
|
|
}
|
|
else if (opcode == OP_SBRA || opcode == OP_SCOND)
|
|
{
|
|
/* Saving the previous value. */
|
|
OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(SLJIT_SP), private_data_ptr);
|
|
allocate_stack(common, 1);
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), private_data_ptr, STR_PTR, 0);
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), TMP2, 0);
|
|
}
|
|
else if (has_alternatives)
|
|
{
|
|
/* Pushing the starting string pointer. */
|
|
allocate_stack(common, 1);
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), STR_PTR, 0);
|
|
}
|
|
|
|
/* Generating code for the first alternative. */
|
|
if (opcode == OP_COND || opcode == OP_SCOND)
|
|
{
|
|
if (*matchingpath == OP_CREF)
|
|
{
|
|
SLJIT_ASSERT(has_alternatives);
|
|
add_jump(compiler, &(BACKTRACK_AS(bracket_backtrack)->u.condfailed),
|
|
CMP(SLJIT_EQUAL, SLJIT_MEM1(SLJIT_SP), OVECTOR(GET2(matchingpath, 1) << 1), SLJIT_MEM1(SLJIT_SP), OVECTOR(1)));
|
|
matchingpath += 1 + IMM2_SIZE;
|
|
}
|
|
else if (*matchingpath == OP_DNCREF)
|
|
{
|
|
SLJIT_ASSERT(has_alternatives);
|
|
|
|
i = GET2(matchingpath, 1 + IMM2_SIZE);
|
|
slot = common->name_table + GET2(matchingpath, 1) * common->name_entry_size;
|
|
OP1(SLJIT_MOV, TMP3, 0, STR_PTR, 0);
|
|
OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_SP), OVECTOR(1));
|
|
OP2(SLJIT_SUB | SLJIT_SET_E, TMP2, 0, SLJIT_MEM1(SLJIT_SP), OVECTOR(GET2(slot, 0) << 1), TMP1, 0);
|
|
slot += common->name_entry_size;
|
|
i--;
|
|
while (i-- > 0)
|
|
{
|
|
OP2(SLJIT_SUB, STR_PTR, 0, SLJIT_MEM1(SLJIT_SP), OVECTOR(GET2(slot, 0) << 1), TMP1, 0);
|
|
OP2(SLJIT_OR | SLJIT_SET_E, TMP2, 0, TMP2, 0, STR_PTR, 0);
|
|
slot += common->name_entry_size;
|
|
}
|
|
OP1(SLJIT_MOV, STR_PTR, 0, TMP3, 0);
|
|
add_jump(compiler, &(BACKTRACK_AS(bracket_backtrack)->u.condfailed), JUMP(SLJIT_ZERO));
|
|
matchingpath += 1 + 2 * IMM2_SIZE;
|
|
}
|
|
else if ((*matchingpath >= OP_RREF && *matchingpath <= OP_TRUE) || *matchingpath == OP_FAIL)
|
|
{
|
|
/* Never has other case. */
|
|
BACKTRACK_AS(bracket_backtrack)->u.condfailed = NULL;
|
|
SLJIT_ASSERT(!has_alternatives);
|
|
|
|
if (*matchingpath == OP_TRUE)
|
|
{
|
|
stacksize = 1;
|
|
matchingpath++;
|
|
}
|
|
else if (*matchingpath == OP_FALSE || *matchingpath == OP_FAIL)
|
|
stacksize = 0;
|
|
else if (*matchingpath == OP_RREF)
|
|
{
|
|
stacksize = GET2(matchingpath, 1);
|
|
if (common->currententry == NULL)
|
|
stacksize = 0;
|
|
else if (stacksize == RREF_ANY)
|
|
stacksize = 1;
|
|
else if (common->currententry->start == 0)
|
|
stacksize = stacksize == 0;
|
|
else
|
|
stacksize = stacksize == (int)GET2(common->start, common->currententry->start + 1 + LINK_SIZE);
|
|
|
|
if (stacksize != 0)
|
|
matchingpath += 1 + IMM2_SIZE;
|
|
}
|
|
else
|
|
{
|
|
if (common->currententry == NULL || common->currententry->start == 0)
|
|
stacksize = 0;
|
|
else
|
|
{
|
|
stacksize = GET2(matchingpath, 1 + IMM2_SIZE);
|
|
slot = common->name_table + GET2(matchingpath, 1) * common->name_entry_size;
|
|
i = (int)GET2(common->start, common->currententry->start + 1 + LINK_SIZE);
|
|
while (stacksize > 0)
|
|
{
|
|
if ((int)GET2(slot, 0) == i)
|
|
break;
|
|
slot += common->name_entry_size;
|
|
stacksize--;
|
|
}
|
|
}
|
|
|
|
if (stacksize != 0)
|
|
matchingpath += 1 + 2 * IMM2_SIZE;
|
|
}
|
|
|
|
/* The stacksize == 0 is a common "else" case. */
|
|
if (stacksize == 0)
|
|
{
|
|
if (*cc == OP_ALT)
|
|
{
|
|
matchingpath = cc + 1 + LINK_SIZE;
|
|
cc += GET(cc, 1);
|
|
}
|
|
else
|
|
matchingpath = cc;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
SLJIT_ASSERT(has_alternatives && *matchingpath >= OP_ASSERT && *matchingpath <= OP_ASSERTBACK_NOT);
|
|
/* Similar code as PUSH_BACKTRACK macro. */
|
|
assert = sljit_alloc_memory(compiler, sizeof(assert_backtrack));
|
|
if (SLJIT_UNLIKELY(sljit_get_compiler_error(compiler)))
|
|
return NULL;
|
|
memset(assert, 0, sizeof(assert_backtrack));
|
|
assert->common.cc = matchingpath;
|
|
BACKTRACK_AS(bracket_backtrack)->u.assert = assert;
|
|
matchingpath = compile_assert_matchingpath(common, matchingpath, assert, TRUE);
|
|
}
|
|
}
|
|
|
|
compile_matchingpath(common, matchingpath, cc, backtrack);
|
|
if (SLJIT_UNLIKELY(sljit_get_compiler_error(compiler)))
|
|
return NULL;
|
|
|
|
if (opcode == OP_ONCE)
|
|
match_once_common(common, ket, BACKTRACK_AS(bracket_backtrack)->u.framesize, private_data_ptr, has_alternatives, needs_control_head);
|
|
|
|
stacksize = 0;
|
|
if (repeat_type == OP_MINUPTO)
|
|
{
|
|
/* We need to preserve the counter. TMP2 will be used below. */
|
|
OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(SLJIT_SP), repeat_ptr);
|
|
stacksize++;
|
|
}
|
|
if (ket != OP_KET || bra != OP_BRA)
|
|
stacksize++;
|
|
if (offset != 0)
|
|
{
|
|
if (common->capture_last_ptr != 0)
|
|
stacksize++;
|
|
if (common->optimized_cbracket[offset >> 1] == 0)
|
|
stacksize += 2;
|
|
}
|
|
if (has_alternatives && opcode != OP_ONCE)
|
|
stacksize++;
|
|
|
|
if (stacksize > 0)
|
|
allocate_stack(common, stacksize);
|
|
|
|
stacksize = 0;
|
|
if (repeat_type == OP_MINUPTO)
|
|
{
|
|
/* TMP2 was set above. */
|
|
OP2(SLJIT_SUB, SLJIT_MEM1(STACK_TOP), STACK(stacksize), TMP2, 0, SLJIT_IMM, 1);
|
|
stacksize++;
|
|
}
|
|
|
|
if (ket != OP_KET || bra != OP_BRA)
|
|
{
|
|
if (ket != OP_KET)
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(stacksize), STR_PTR, 0);
|
|
else
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(stacksize), SLJIT_IMM, 0);
|
|
stacksize++;
|
|
}
|
|
|
|
if (offset != 0)
|
|
stacksize = match_capture_common(common, stacksize, offset, private_data_ptr);
|
|
|
|
if (has_alternatives)
|
|
{
|
|
if (opcode != OP_ONCE)
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(stacksize), SLJIT_IMM, 0);
|
|
if (ket != OP_KETRMAX)
|
|
BACKTRACK_AS(bracket_backtrack)->alternative_matchingpath = LABEL();
|
|
}
|
|
|
|
/* Must be after the matchingpath label. */
|
|
if (offset != 0 && common->optimized_cbracket[offset >> 1] != 0)
|
|
{
|
|
SLJIT_ASSERT(private_data_ptr == OVECTOR(offset + 0));
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), OVECTOR(offset + 1), STR_PTR, 0);
|
|
}
|
|
|
|
if (ket == OP_KETRMAX)
|
|
{
|
|
if (repeat_type != 0)
|
|
{
|
|
if (has_alternatives)
|
|
BACKTRACK_AS(bracket_backtrack)->alternative_matchingpath = LABEL();
|
|
OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_MEM1(SLJIT_SP), repeat_ptr, SLJIT_MEM1(SLJIT_SP), repeat_ptr, SLJIT_IMM, 1);
|
|
JUMPTO(SLJIT_NOT_ZERO, rmax_label);
|
|
/* Drop STR_PTR for greedy plus quantifier. */
|
|
if (opcode != OP_ONCE)
|
|
free_stack(common, 1);
|
|
}
|
|
else if (opcode == OP_ONCE || opcode >= OP_SBRA)
|
|
{
|
|
if (has_alternatives)
|
|
BACKTRACK_AS(bracket_backtrack)->alternative_matchingpath = LABEL();
|
|
/* Checking zero-length iteration. */
|
|
if (opcode != OP_ONCE)
|
|
{
|
|
CMPTO(SLJIT_NOT_EQUAL, SLJIT_MEM1(SLJIT_SP), private_data_ptr, STR_PTR, 0, rmax_label);
|
|
/* Drop STR_PTR for greedy plus quantifier. */
|
|
if (bra != OP_BRAZERO)
|
|
free_stack(common, 1);
|
|
}
|
|
else
|
|
/* TMP2 must contain the starting STR_PTR. */
|
|
CMPTO(SLJIT_NOT_EQUAL, TMP2, 0, STR_PTR, 0, rmax_label);
|
|
}
|
|
else
|
|
JUMPTO(SLJIT_JUMP, rmax_label);
|
|
BACKTRACK_AS(bracket_backtrack)->recursive_matchingpath = LABEL();
|
|
}
|
|
|
|
if (repeat_type == OP_EXACT)
|
|
{
|
|
count_match(common);
|
|
OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_MEM1(SLJIT_SP), repeat_ptr, SLJIT_MEM1(SLJIT_SP), repeat_ptr, SLJIT_IMM, 1);
|
|
JUMPTO(SLJIT_NOT_ZERO, rmax_label);
|
|
}
|
|
else if (repeat_type == OP_UPTO)
|
|
{
|
|
/* We need to preserve the counter. */
|
|
OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(SLJIT_SP), repeat_ptr);
|
|
allocate_stack(common, 1);
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), TMP2, 0);
|
|
}
|
|
|
|
if (bra == OP_BRAZERO)
|
|
BACKTRACK_AS(bracket_backtrack)->zero_matchingpath = LABEL();
|
|
|
|
if (bra == OP_BRAMINZERO)
|
|
{
|
|
/* This is a backtrack path! (From the viewpoint of OP_BRAMINZERO) */
|
|
JUMPTO(SLJIT_JUMP, ((braminzero_backtrack *)parent)->matchingpath);
|
|
if (braminzero != NULL)
|
|
{
|
|
JUMPHERE(braminzero);
|
|
/* We need to release the end pointer to perform the
|
|
backtrack for the zero-length iteration. When
|
|
framesize is < 0, OP_ONCE will do the release itself. */
|
|
if (opcode == OP_ONCE && BACKTRACK_AS(bracket_backtrack)->u.framesize >= 0)
|
|
{
|
|
OP1(SLJIT_MOV, STACK_TOP, 0, SLJIT_MEM1(SLJIT_SP), private_data_ptr);
|
|
add_jump(compiler, &common->revertframes, JUMP(SLJIT_FAST_CALL));
|
|
}
|
|
else if (ket == OP_KETRMIN && opcode != OP_ONCE)
|
|
free_stack(common, 1);
|
|
}
|
|
/* Continue to the normal backtrack. */
|
|
}
|
|
|
|
if ((ket != OP_KET && bra != OP_BRAMINZERO) || bra == OP_BRAZERO)
|
|
count_match(common);
|
|
|
|
/* Skip the other alternatives. */
|
|
while (*cc == OP_ALT)
|
|
cc += GET(cc, 1);
|
|
cc += 1 + LINK_SIZE;
|
|
|
|
if (opcode == OP_ONCE)
|
|
{
|
|
/* We temporarily encode the needs_control_head in the lowest bit.
|
|
Note: on the target architectures of SLJIT the ((x << 1) >> 1) returns
|
|
the same value for small signed numbers (including negative numbers). */
|
|
BACKTRACK_AS(bracket_backtrack)->u.framesize = (BACKTRACK_AS(bracket_backtrack)->u.framesize << 1) | (needs_control_head ? 1 : 0);
|
|
}
|
|
return cc + repeat_length;
|
|
}
|
|
|
|
static PCRE2_SPTR compile_bracketpos_matchingpath(compiler_common *common, PCRE2_SPTR cc, backtrack_common *parent)
|
|
{
|
|
DEFINE_COMPILER;
|
|
backtrack_common *backtrack;
|
|
PCRE2_UCHAR opcode;
|
|
int private_data_ptr;
|
|
int cbraprivptr = 0;
|
|
BOOL needs_control_head;
|
|
int framesize;
|
|
int stacksize;
|
|
int offset = 0;
|
|
BOOL zero = FALSE;
|
|
PCRE2_SPTR ccbegin = NULL;
|
|
int stack; /* Also contains the offset of control head. */
|
|
struct sljit_label *loop = NULL;
|
|
struct jump_list *emptymatch = NULL;
|
|
|
|
PUSH_BACKTRACK(sizeof(bracketpos_backtrack), cc, NULL);
|
|
if (*cc == OP_BRAPOSZERO)
|
|
{
|
|
zero = TRUE;
|
|
cc++;
|
|
}
|
|
|
|
opcode = *cc;
|
|
private_data_ptr = PRIVATE_DATA(cc);
|
|
SLJIT_ASSERT(private_data_ptr != 0);
|
|
BACKTRACK_AS(bracketpos_backtrack)->private_data_ptr = private_data_ptr;
|
|
switch(opcode)
|
|
{
|
|
case OP_BRAPOS:
|
|
case OP_SBRAPOS:
|
|
ccbegin = cc + 1 + LINK_SIZE;
|
|
break;
|
|
|
|
case OP_CBRAPOS:
|
|
case OP_SCBRAPOS:
|
|
offset = GET2(cc, 1 + LINK_SIZE);
|
|
/* This case cannot be optimized in the same was as
|
|
normal capturing brackets. */
|
|
SLJIT_ASSERT(common->optimized_cbracket[offset] == 0);
|
|
cbraprivptr = OVECTOR_PRIV(offset);
|
|
offset <<= 1;
|
|
ccbegin = cc + 1 + LINK_SIZE + IMM2_SIZE;
|
|
break;
|
|
|
|
default:
|
|
SLJIT_ASSERT_STOP();
|
|
break;
|
|
}
|
|
|
|
framesize = get_framesize(common, cc, NULL, FALSE, &needs_control_head);
|
|
BACKTRACK_AS(bracketpos_backtrack)->framesize = framesize;
|
|
if (framesize < 0)
|
|
{
|
|
if (offset != 0)
|
|
{
|
|
stacksize = 2;
|
|
if (common->capture_last_ptr != 0)
|
|
stacksize++;
|
|
}
|
|
else
|
|
stacksize = 1;
|
|
|
|
if (needs_control_head)
|
|
stacksize++;
|
|
if (!zero)
|
|
stacksize++;
|
|
|
|
BACKTRACK_AS(bracketpos_backtrack)->stacksize = stacksize;
|
|
allocate_stack(common, stacksize);
|
|
if (framesize == no_frame)
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), private_data_ptr, STACK_TOP, 0);
|
|
|
|
stack = 0;
|
|
if (offset != 0)
|
|
{
|
|
stack = 2;
|
|
OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_SP), OVECTOR(offset));
|
|
OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(SLJIT_SP), OVECTOR(offset + 1));
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), TMP1, 0);
|
|
if (common->capture_last_ptr != 0)
|
|
OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_SP), common->capture_last_ptr);
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(1), TMP2, 0);
|
|
if (needs_control_head)
|
|
OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(SLJIT_SP), common->control_head_ptr);
|
|
if (common->capture_last_ptr != 0)
|
|
{
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(2), TMP1, 0);
|
|
stack = 3;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if (needs_control_head)
|
|
OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(SLJIT_SP), common->control_head_ptr);
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), STR_PTR, 0);
|
|
stack = 1;
|
|
}
|
|
|
|
if (needs_control_head)
|
|
stack++;
|
|
if (!zero)
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(stack), SLJIT_IMM, 1);
|
|
if (needs_control_head)
|
|
{
|
|
stack--;
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(stack), TMP2, 0);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
stacksize = framesize + 1;
|
|
if (!zero)
|
|
stacksize++;
|
|
if (needs_control_head)
|
|
stacksize++;
|
|
if (offset == 0)
|
|
stacksize++;
|
|
BACKTRACK_AS(bracketpos_backtrack)->stacksize = stacksize;
|
|
|
|
allocate_stack(common, stacksize);
|
|
OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_SP), private_data_ptr);
|
|
if (needs_control_head)
|
|
OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(SLJIT_SP), common->control_head_ptr);
|
|
OP2(SLJIT_SUB, SLJIT_MEM1(SLJIT_SP), private_data_ptr, STACK_TOP, 0, SLJIT_IMM, -STACK(stacksize - 1));
|
|
|
|
stack = 0;
|
|
if (!zero)
|
|
{
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), SLJIT_IMM, 1);
|
|
stack = 1;
|
|
}
|
|
if (needs_control_head)
|
|
{
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(stack), TMP2, 0);
|
|
stack++;
|
|
}
|
|
if (offset == 0)
|
|
{
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(stack), STR_PTR, 0);
|
|
stack++;
|
|
}
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(stack), TMP1, 0);
|
|
init_frame(common, cc, NULL, stacksize - 1, stacksize - framesize, FALSE);
|
|
stack -= 1 + (offset == 0);
|
|
}
|
|
|
|
if (offset != 0)
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), cbraprivptr, STR_PTR, 0);
|
|
|
|
loop = LABEL();
|
|
while (*cc != OP_KETRPOS)
|
|
{
|
|
backtrack->top = NULL;
|
|
backtrack->topbacktracks = NULL;
|
|
cc += GET(cc, 1);
|
|
|
|
compile_matchingpath(common, ccbegin, cc, backtrack);
|
|
if (SLJIT_UNLIKELY(sljit_get_compiler_error(compiler)))
|
|
return NULL;
|
|
|
|
if (framesize < 0)
|
|
{
|
|
if (framesize == no_frame)
|
|
OP1(SLJIT_MOV, STACK_TOP, 0, SLJIT_MEM1(SLJIT_SP), private_data_ptr);
|
|
|
|
if (offset != 0)
|
|
{
|
|
OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_SP), cbraprivptr);
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), OVECTOR(offset + 1), STR_PTR, 0);
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), cbraprivptr, STR_PTR, 0);
|
|
if (common->capture_last_ptr != 0)
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), common->capture_last_ptr, SLJIT_IMM, offset >> 1);
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), OVECTOR(offset), TMP1, 0);
|
|
}
|
|
else
|
|
{
|
|
if (opcode == OP_SBRAPOS)
|
|
OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(STACK_TOP), STACK(0));
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), STR_PTR, 0);
|
|
}
|
|
|
|
/* Even if the match is empty, we need to reset the control head. */
|
|
if (needs_control_head)
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), common->control_head_ptr, SLJIT_MEM1(STACK_TOP), STACK(stack));
|
|
|
|
if (opcode == OP_SBRAPOS || opcode == OP_SCBRAPOS)
|
|
add_jump(compiler, &emptymatch, CMP(SLJIT_EQUAL, TMP1, 0, STR_PTR, 0));
|
|
|
|
if (!zero)
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(stacksize - 1), SLJIT_IMM, 0);
|
|
}
|
|
else
|
|
{
|
|
if (offset != 0)
|
|
{
|
|
OP2(SLJIT_ADD, STACK_TOP, 0, SLJIT_MEM1(SLJIT_SP), private_data_ptr, SLJIT_IMM, stacksize * sizeof(sljit_sw));
|
|
OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_SP), cbraprivptr);
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), OVECTOR(offset + 1), STR_PTR, 0);
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), cbraprivptr, STR_PTR, 0);
|
|
if (common->capture_last_ptr != 0)
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), common->capture_last_ptr, SLJIT_IMM, offset >> 1);
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), OVECTOR(offset), TMP1, 0);
|
|
}
|
|
else
|
|
{
|
|
OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(SLJIT_SP), private_data_ptr);
|
|
OP2(SLJIT_ADD, STACK_TOP, 0, TMP2, 0, SLJIT_IMM, stacksize * sizeof(sljit_sw));
|
|
if (opcode == OP_SBRAPOS)
|
|
OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(TMP2), (framesize + 1) * sizeof(sljit_sw));
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(TMP2), (framesize + 1) * sizeof(sljit_sw), STR_PTR, 0);
|
|
}
|
|
|
|
/* Even if the match is empty, we need to reset the control head. */
|
|
if (needs_control_head)
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), common->control_head_ptr, SLJIT_MEM1(STACK_TOP), STACK(stack));
|
|
|
|
if (opcode == OP_SBRAPOS || opcode == OP_SCBRAPOS)
|
|
add_jump(compiler, &emptymatch, CMP(SLJIT_EQUAL, TMP1, 0, STR_PTR, 0));
|
|
|
|
if (!zero)
|
|
{
|
|
if (framesize < 0)
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(stacksize - 1), SLJIT_IMM, 0);
|
|
else
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), SLJIT_IMM, 0);
|
|
}
|
|
}
|
|
|
|
JUMPTO(SLJIT_JUMP, loop);
|
|
flush_stubs(common);
|
|
|
|
compile_backtrackingpath(common, backtrack->top);
|
|
if (SLJIT_UNLIKELY(sljit_get_compiler_error(compiler)))
|
|
return NULL;
|
|
set_jumps(backtrack->topbacktracks, LABEL());
|
|
|
|
if (framesize < 0)
|
|
{
|
|
if (offset != 0)
|
|
OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_MEM1(SLJIT_SP), cbraprivptr);
|
|
else
|
|
OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_MEM1(STACK_TOP), STACK(0));
|
|
}
|
|
else
|
|
{
|
|
if (offset != 0)
|
|
{
|
|
/* Last alternative. */
|
|
if (*cc == OP_KETRPOS)
|
|
OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(SLJIT_SP), private_data_ptr);
|
|
OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_MEM1(SLJIT_SP), cbraprivptr);
|
|
}
|
|
else
|
|
{
|
|
OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(SLJIT_SP), private_data_ptr);
|
|
OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_MEM1(TMP2), (framesize + 1) * sizeof(sljit_sw));
|
|
}
|
|
}
|
|
|
|
if (*cc == OP_KETRPOS)
|
|
break;
|
|
ccbegin = cc + 1 + LINK_SIZE;
|
|
}
|
|
|
|
/* We don't have to restore the control head in case of a failed match. */
|
|
|
|
backtrack->topbacktracks = NULL;
|
|
if (!zero)
|
|
{
|
|
if (framesize < 0)
|
|
add_jump(compiler, &backtrack->topbacktracks, CMP(SLJIT_NOT_EQUAL, SLJIT_MEM1(STACK_TOP), STACK(stacksize - 1), SLJIT_IMM, 0));
|
|
else /* TMP2 is set to [private_data_ptr] above. */
|
|
add_jump(compiler, &backtrack->topbacktracks, CMP(SLJIT_NOT_EQUAL, SLJIT_MEM1(TMP2), (stacksize - 1) * sizeof(sljit_sw), SLJIT_IMM, 0));
|
|
}
|
|
|
|
/* None of them matched. */
|
|
set_jumps(emptymatch, LABEL());
|
|
count_match(common);
|
|
return cc + 1 + LINK_SIZE;
|
|
}
|
|
|
|
static SLJIT_INLINE PCRE2_SPTR get_iterator_parameters(compiler_common *common, PCRE2_SPTR cc, PCRE2_UCHAR *opcode, PCRE2_UCHAR *type, sljit_u32 *max, sljit_u32 *exact, PCRE2_SPTR *end)
|
|
{
|
|
int class_len;
|
|
|
|
*opcode = *cc;
|
|
*exact = 0;
|
|
|
|
if (*opcode >= OP_STAR && *opcode <= OP_POSUPTO)
|
|
{
|
|
cc++;
|
|
*type = OP_CHAR;
|
|
}
|
|
else if (*opcode >= OP_STARI && *opcode <= OP_POSUPTOI)
|
|
{
|
|
cc++;
|
|
*type = OP_CHARI;
|
|
*opcode -= OP_STARI - OP_STAR;
|
|
}
|
|
else if (*opcode >= OP_NOTSTAR && *opcode <= OP_NOTPOSUPTO)
|
|
{
|
|
cc++;
|
|
*type = OP_NOT;
|
|
*opcode -= OP_NOTSTAR - OP_STAR;
|
|
}
|
|
else if (*opcode >= OP_NOTSTARI && *opcode <= OP_NOTPOSUPTOI)
|
|
{
|
|
cc++;
|
|
*type = OP_NOTI;
|
|
*opcode -= OP_NOTSTARI - OP_STAR;
|
|
}
|
|
else if (*opcode >= OP_TYPESTAR && *opcode <= OP_TYPEPOSUPTO)
|
|
{
|
|
cc++;
|
|
*opcode -= OP_TYPESTAR - OP_STAR;
|
|
*type = OP_END;
|
|
}
|
|
else
|
|
{
|
|
SLJIT_ASSERT(*opcode == OP_CLASS || *opcode == OP_NCLASS || *opcode == OP_XCLASS);
|
|
*type = *opcode;
|
|
cc++;
|
|
class_len = (*type < OP_XCLASS) ? (int)(1 + (32 / sizeof(PCRE2_UCHAR))) : GET(cc, 0);
|
|
*opcode = cc[class_len - 1];
|
|
|
|
if (*opcode >= OP_CRSTAR && *opcode <= OP_CRMINQUERY)
|
|
{
|
|
*opcode -= OP_CRSTAR - OP_STAR;
|
|
*end = cc + class_len;
|
|
|
|
if (*opcode == OP_PLUS || *opcode == OP_MINPLUS)
|
|
{
|
|
*exact = 1;
|
|
*opcode -= OP_PLUS - OP_STAR;
|
|
}
|
|
}
|
|
else if (*opcode >= OP_CRPOSSTAR && *opcode <= OP_CRPOSQUERY)
|
|
{
|
|
*opcode -= OP_CRPOSSTAR - OP_POSSTAR;
|
|
*end = cc + class_len;
|
|
|
|
if (*opcode == OP_POSPLUS)
|
|
{
|
|
*exact = 1;
|
|
*opcode = OP_POSSTAR;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
SLJIT_ASSERT(*opcode == OP_CRRANGE || *opcode == OP_CRMINRANGE || *opcode == OP_CRPOSRANGE);
|
|
*max = GET2(cc, (class_len + IMM2_SIZE));
|
|
*exact = GET2(cc, class_len);
|
|
|
|
if (*max == 0)
|
|
{
|
|
if (*opcode == OP_CRPOSRANGE)
|
|
*opcode = OP_POSSTAR;
|
|
else
|
|
*opcode -= OP_CRRANGE - OP_STAR;
|
|
}
|
|
else
|
|
{
|
|
*max -= *exact;
|
|
if (*max == 0)
|
|
*opcode = OP_EXACT;
|
|
else if (*max == 1)
|
|
{
|
|
if (*opcode == OP_CRPOSRANGE)
|
|
*opcode = OP_POSQUERY;
|
|
else
|
|
*opcode -= OP_CRRANGE - OP_QUERY;
|
|
}
|
|
else
|
|
{
|
|
if (*opcode == OP_CRPOSRANGE)
|
|
*opcode = OP_POSUPTO;
|
|
else
|
|
*opcode -= OP_CRRANGE - OP_UPTO;
|
|
}
|
|
}
|
|
*end = cc + class_len + 2 * IMM2_SIZE;
|
|
}
|
|
return cc;
|
|
}
|
|
|
|
switch(*opcode)
|
|
{
|
|
case OP_EXACT:
|
|
*exact = GET2(cc, 0);
|
|
cc += IMM2_SIZE;
|
|
break;
|
|
|
|
case OP_PLUS:
|
|
case OP_MINPLUS:
|
|
*exact = 1;
|
|
*opcode -= OP_PLUS - OP_STAR;
|
|
break;
|
|
|
|
case OP_POSPLUS:
|
|
*exact = 1;
|
|
*opcode = OP_POSSTAR;
|
|
break;
|
|
|
|
case OP_UPTO:
|
|
case OP_MINUPTO:
|
|
case OP_POSUPTO:
|
|
*max = GET2(cc, 0);
|
|
cc += IMM2_SIZE;
|
|
break;
|
|
}
|
|
|
|
if (*type == OP_END)
|
|
{
|
|
*type = *cc;
|
|
*end = next_opcode(common, cc);
|
|
cc++;
|
|
return cc;
|
|
}
|
|
|
|
*end = cc + 1;
|
|
#ifdef SUPPORT_UNICODE
|
|
if (common->utf && HAS_EXTRALEN(*cc)) *end += GET_EXTRALEN(*cc);
|
|
#endif
|
|
return cc;
|
|
}
|
|
|
|
static PCRE2_SPTR compile_iterator_matchingpath(compiler_common *common, PCRE2_SPTR cc, backtrack_common *parent)
|
|
{
|
|
DEFINE_COMPILER;
|
|
backtrack_common *backtrack;
|
|
PCRE2_UCHAR opcode;
|
|
PCRE2_UCHAR type;
|
|
sljit_u32 max = 0, exact;
|
|
BOOL fast_fail;
|
|
sljit_s32 fast_str_ptr;
|
|
BOOL charpos_enabled;
|
|
PCRE2_UCHAR charpos_char;
|
|
unsigned int charpos_othercasebit;
|
|
PCRE2_SPTR end;
|
|
jump_list *no_match = NULL;
|
|
jump_list *no_char1_match = NULL;
|
|
struct sljit_jump *jump = NULL;
|
|
struct sljit_label *label;
|
|
int private_data_ptr = PRIVATE_DATA(cc);
|
|
int base = (private_data_ptr == 0) ? SLJIT_MEM1(STACK_TOP) : SLJIT_MEM1(SLJIT_SP);
|
|
int offset0 = (private_data_ptr == 0) ? STACK(0) : private_data_ptr;
|
|
int offset1 = (private_data_ptr == 0) ? STACK(1) : private_data_ptr + (int)sizeof(sljit_sw);
|
|
int tmp_base, tmp_offset;
|
|
|
|
PUSH_BACKTRACK(sizeof(char_iterator_backtrack), cc, NULL);
|
|
|
|
fast_str_ptr = PRIVATE_DATA(cc + 1);
|
|
fast_fail = TRUE;
|
|
|
|
SLJIT_ASSERT(common->fast_forward_bc_ptr == NULL || fast_str_ptr == 0 || cc == common->fast_forward_bc_ptr);
|
|
|
|
if (cc == common->fast_forward_bc_ptr)
|
|
fast_fail = FALSE;
|
|
else if (common->fast_fail_start_ptr == 0)
|
|
fast_str_ptr = 0;
|
|
|
|
SLJIT_ASSERT(common->fast_forward_bc_ptr != NULL || fast_str_ptr == 0
|
|
|| (fast_str_ptr >= common->fast_fail_start_ptr && fast_str_ptr <= common->fast_fail_end_ptr));
|
|
|
|
cc = get_iterator_parameters(common, cc, &opcode, &type, &max, &exact, &end);
|
|
|
|
if (type != OP_EXTUNI)
|
|
{
|
|
tmp_base = TMP3;
|
|
tmp_offset = 0;
|
|
}
|
|
else
|
|
{
|
|
tmp_base = SLJIT_MEM1(SLJIT_SP);
|
|
tmp_offset = POSSESSIVE0;
|
|
}
|
|
|
|
if (fast_fail && fast_str_ptr != 0)
|
|
add_jump(compiler, &backtrack->topbacktracks, CMP(SLJIT_LESS_EQUAL, STR_PTR, 0, SLJIT_MEM1(SLJIT_SP), fast_str_ptr));
|
|
|
|
/* Handle fixed part first. */
|
|
if (exact > 1)
|
|
{
|
|
SLJIT_ASSERT(fast_str_ptr == 0);
|
|
if (common->mode == PCRE2_JIT_COMPLETE
|
|
#ifdef SUPPORT_UNICODE
|
|
&& !common->utf
|
|
#endif
|
|
)
|
|
{
|
|
OP2(SLJIT_ADD, TMP1, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(exact));
|
|
add_jump(compiler, &backtrack->topbacktracks, CMP(SLJIT_GREATER, TMP1, 0, STR_END, 0));
|
|
OP1(SLJIT_MOV, tmp_base, tmp_offset, SLJIT_IMM, exact);
|
|
label = LABEL();
|
|
compile_char1_matchingpath(common, type, cc, &backtrack->topbacktracks, FALSE);
|
|
OP2(SLJIT_SUB | SLJIT_SET_E, tmp_base, tmp_offset, tmp_base, tmp_offset, SLJIT_IMM, 1);
|
|
JUMPTO(SLJIT_NOT_ZERO, label);
|
|
}
|
|
else
|
|
{
|
|
OP1(SLJIT_MOV, tmp_base, tmp_offset, SLJIT_IMM, exact);
|
|
label = LABEL();
|
|
compile_char1_matchingpath(common, type, cc, &backtrack->topbacktracks, TRUE);
|
|
OP2(SLJIT_SUB | SLJIT_SET_E, tmp_base, tmp_offset, tmp_base, tmp_offset, SLJIT_IMM, 1);
|
|
JUMPTO(SLJIT_NOT_ZERO, label);
|
|
}
|
|
}
|
|
else if (exact == 1)
|
|
compile_char1_matchingpath(common, type, cc, &backtrack->topbacktracks, TRUE);
|
|
|
|
switch(opcode)
|
|
{
|
|
case OP_STAR:
|
|
case OP_UPTO:
|
|
SLJIT_ASSERT(fast_str_ptr == 0 || opcode == OP_STAR);
|
|
|
|
if (type == OP_ANYNL || type == OP_EXTUNI)
|
|
{
|
|
SLJIT_ASSERT(private_data_ptr == 0);
|
|
SLJIT_ASSERT(fast_str_ptr == 0);
|
|
|
|
allocate_stack(common, 2);
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), STR_PTR, 0);
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(1), SLJIT_IMM, 0);
|
|
|
|
if (opcode == OP_UPTO)
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), POSSESSIVE0, SLJIT_IMM, max);
|
|
|
|
label = LABEL();
|
|
compile_char1_matchingpath(common, type, cc, &BACKTRACK_AS(char_iterator_backtrack)->u.backtracks, TRUE);
|
|
if (opcode == OP_UPTO)
|
|
{
|
|
OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_SP), POSSESSIVE0);
|
|
OP2(SLJIT_SUB | SLJIT_SET_E, TMP1, 0, TMP1, 0, SLJIT_IMM, 1);
|
|
jump = JUMP(SLJIT_ZERO);
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), POSSESSIVE0, TMP1, 0);
|
|
}
|
|
|
|
/* We cannot use TMP3 because of this allocate_stack. */
|
|
allocate_stack(common, 1);
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), STR_PTR, 0);
|
|
JUMPTO(SLJIT_JUMP, label);
|
|
if (jump != NULL)
|
|
JUMPHERE(jump);
|
|
}
|
|
else
|
|
{
|
|
charpos_enabled = FALSE;
|
|
charpos_char = 0;
|
|
charpos_othercasebit = 0;
|
|
|
|
if ((type != OP_CHAR && type != OP_CHARI) && (*end == OP_CHAR || *end == OP_CHARI))
|
|
{
|
|
charpos_enabled = TRUE;
|
|
#ifdef SUPPORT_UNICODE
|
|
charpos_enabled = !common->utf || !HAS_EXTRALEN(end[1]);
|
|
#endif
|
|
if (charpos_enabled && *end == OP_CHARI && char_has_othercase(common, end + 1))
|
|
{
|
|
charpos_othercasebit = char_get_othercase_bit(common, end + 1);
|
|
if (charpos_othercasebit == 0)
|
|
charpos_enabled = FALSE;
|
|
}
|
|
|
|
if (charpos_enabled)
|
|
{
|
|
charpos_char = end[1];
|
|
/* Consumpe the OP_CHAR opcode. */
|
|
end += 2;
|
|
#if PCRE2_CODE_UNIT_WIDTH == 8
|
|
SLJIT_ASSERT((charpos_othercasebit >> 8) == 0);
|
|
#elif PCRE2_CODE_UNIT_WIDTH == 16 || PCRE2_CODE_UNIT_WIDTH == 32
|
|
SLJIT_ASSERT((charpos_othercasebit >> 9) == 0);
|
|
if ((charpos_othercasebit & 0x100) != 0)
|
|
charpos_othercasebit = (charpos_othercasebit & 0xff) << 8;
|
|
#endif
|
|
if (charpos_othercasebit != 0)
|
|
charpos_char |= charpos_othercasebit;
|
|
|
|
BACKTRACK_AS(char_iterator_backtrack)->u.charpos.enabled = TRUE;
|
|
BACKTRACK_AS(char_iterator_backtrack)->u.charpos.chr = charpos_char;
|
|
BACKTRACK_AS(char_iterator_backtrack)->u.charpos.othercasebit = charpos_othercasebit;
|
|
}
|
|
}
|
|
|
|
if (charpos_enabled)
|
|
{
|
|
if (opcode == OP_UPTO)
|
|
OP1(SLJIT_MOV, tmp_base, tmp_offset, SLJIT_IMM, max + 1);
|
|
|
|
/* Search the first instance of charpos_char. */
|
|
jump = JUMP(SLJIT_JUMP);
|
|
label = LABEL();
|
|
if (opcode == OP_UPTO)
|
|
{
|
|
OP2(SLJIT_SUB | SLJIT_SET_E, tmp_base, tmp_offset, tmp_base, tmp_offset, SLJIT_IMM, 1);
|
|
add_jump(compiler, &backtrack->topbacktracks, JUMP(SLJIT_ZERO));
|
|
}
|
|
compile_char1_matchingpath(common, type, cc, &backtrack->topbacktracks, FALSE);
|
|
if (fast_str_ptr != 0)
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), fast_str_ptr, STR_PTR, 0);
|
|
JUMPHERE(jump);
|
|
|
|
detect_partial_match(common, &backtrack->topbacktracks);
|
|
OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(0));
|
|
if (charpos_othercasebit != 0)
|
|
OP2(SLJIT_OR, TMP1, 0, TMP1, 0, SLJIT_IMM, charpos_othercasebit);
|
|
CMPTO(SLJIT_NOT_EQUAL, TMP1, 0, SLJIT_IMM, charpos_char, label);
|
|
|
|
if (private_data_ptr == 0)
|
|
allocate_stack(common, 2);
|
|
OP1(SLJIT_MOV, base, offset0, STR_PTR, 0);
|
|
OP1(SLJIT_MOV, base, offset1, STR_PTR, 0);
|
|
if (opcode == OP_UPTO)
|
|
{
|
|
OP2(SLJIT_SUB | SLJIT_SET_E, tmp_base, tmp_offset, tmp_base, tmp_offset, SLJIT_IMM, 1);
|
|
add_jump(compiler, &no_match, JUMP(SLJIT_ZERO));
|
|
}
|
|
|
|
/* Search the last instance of charpos_char. */
|
|
label = LABEL();
|
|
compile_char1_matchingpath(common, type, cc, &no_match, FALSE);
|
|
if (fast_str_ptr != 0)
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), fast_str_ptr, STR_PTR, 0);
|
|
detect_partial_match(common, &no_match);
|
|
OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(0));
|
|
if (charpos_othercasebit != 0)
|
|
OP2(SLJIT_OR, TMP1, 0, TMP1, 0, SLJIT_IMM, charpos_othercasebit);
|
|
if (opcode == OP_STAR)
|
|
{
|
|
CMPTO(SLJIT_NOT_EQUAL, TMP1, 0, SLJIT_IMM, charpos_char, label);
|
|
OP1(SLJIT_MOV, base, offset0, STR_PTR, 0);
|
|
}
|
|
else
|
|
{
|
|
jump = CMP(SLJIT_NOT_EQUAL, TMP1, 0, SLJIT_IMM, charpos_char);
|
|
OP1(SLJIT_MOV, base, offset0, STR_PTR, 0);
|
|
JUMPHERE(jump);
|
|
}
|
|
|
|
if (opcode == OP_UPTO)
|
|
{
|
|
OP2(SLJIT_SUB | SLJIT_SET_E, tmp_base, tmp_offset, tmp_base, tmp_offset, SLJIT_IMM, 1);
|
|
JUMPTO(SLJIT_NOT_ZERO, label);
|
|
}
|
|
else
|
|
JUMPTO(SLJIT_JUMP, label);
|
|
|
|
set_jumps(no_match, LABEL());
|
|
OP1(SLJIT_MOV, STR_PTR, 0, base, offset0);
|
|
OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1));
|
|
OP1(SLJIT_MOV, base, offset0, STR_PTR, 0);
|
|
}
|
|
#if defined SUPPORT_UNICODE && PCRE2_CODE_UNIT_WIDTH != 32
|
|
else if (common->utf)
|
|
{
|
|
if (private_data_ptr == 0)
|
|
allocate_stack(common, 2);
|
|
|
|
OP1(SLJIT_MOV, base, offset0, STR_PTR, 0);
|
|
OP1(SLJIT_MOV, base, offset1, STR_PTR, 0);
|
|
|
|
if (opcode == OP_UPTO)
|
|
OP1(SLJIT_MOV, tmp_base, tmp_offset, SLJIT_IMM, max);
|
|
|
|
label = LABEL();
|
|
compile_char1_matchingpath(common, type, cc, &no_match, TRUE);
|
|
OP1(SLJIT_MOV, base, offset0, STR_PTR, 0);
|
|
|
|
if (opcode == OP_UPTO)
|
|
{
|
|
OP2(SLJIT_SUB | SLJIT_SET_E, tmp_base, tmp_offset, tmp_base, tmp_offset, SLJIT_IMM, 1);
|
|
JUMPTO(SLJIT_NOT_ZERO, label);
|
|
}
|
|
else
|
|
JUMPTO(SLJIT_JUMP, label);
|
|
|
|
set_jumps(no_match, LABEL());
|
|
OP1(SLJIT_MOV, STR_PTR, 0, base, offset0);
|
|
if (fast_str_ptr != 0)
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), fast_str_ptr, STR_PTR, 0);
|
|
}
|
|
#endif
|
|
else
|
|
{
|
|
if (private_data_ptr == 0)
|
|
allocate_stack(common, 2);
|
|
|
|
OP1(SLJIT_MOV, base, offset1, STR_PTR, 0);
|
|
if (opcode == OP_UPTO)
|
|
OP1(SLJIT_MOV, tmp_base, tmp_offset, SLJIT_IMM, max);
|
|
|
|
label = LABEL();
|
|
detect_partial_match(common, &no_match);
|
|
compile_char1_matchingpath(common, type, cc, &no_char1_match, FALSE);
|
|
if (opcode == OP_UPTO)
|
|
{
|
|
OP2(SLJIT_SUB | SLJIT_SET_E, tmp_base, tmp_offset, tmp_base, tmp_offset, SLJIT_IMM, 1);
|
|
JUMPTO(SLJIT_NOT_ZERO, label);
|
|
OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1));
|
|
}
|
|
else
|
|
JUMPTO(SLJIT_JUMP, label);
|
|
|
|
set_jumps(no_char1_match, LABEL());
|
|
OP2(SLJIT_SUB, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1));
|
|
set_jumps(no_match, LABEL());
|
|
OP1(SLJIT_MOV, base, offset0, STR_PTR, 0);
|
|
if (fast_str_ptr != 0)
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), fast_str_ptr, STR_PTR, 0);
|
|
}
|
|
}
|
|
BACKTRACK_AS(char_iterator_backtrack)->matchingpath = LABEL();
|
|
break;
|
|
|
|
case OP_MINSTAR:
|
|
if (private_data_ptr == 0)
|
|
allocate_stack(common, 1);
|
|
OP1(SLJIT_MOV, base, offset0, STR_PTR, 0);
|
|
BACKTRACK_AS(char_iterator_backtrack)->matchingpath = LABEL();
|
|
if (fast_str_ptr != 0)
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), fast_str_ptr, STR_PTR, 0);
|
|
break;
|
|
|
|
case OP_MINUPTO:
|
|
SLJIT_ASSERT(fast_str_ptr == 0);
|
|
if (private_data_ptr == 0)
|
|
allocate_stack(common, 2);
|
|
OP1(SLJIT_MOV, base, offset0, STR_PTR, 0);
|
|
OP1(SLJIT_MOV, base, offset1, SLJIT_IMM, max + 1);
|
|
BACKTRACK_AS(char_iterator_backtrack)->matchingpath = LABEL();
|
|
break;
|
|
|
|
case OP_QUERY:
|
|
case OP_MINQUERY:
|
|
SLJIT_ASSERT(fast_str_ptr == 0);
|
|
if (private_data_ptr == 0)
|
|
allocate_stack(common, 1);
|
|
OP1(SLJIT_MOV, base, offset0, STR_PTR, 0);
|
|
if (opcode == OP_QUERY)
|
|
compile_char1_matchingpath(common, type, cc, &BACKTRACK_AS(char_iterator_backtrack)->u.backtracks, TRUE);
|
|
BACKTRACK_AS(char_iterator_backtrack)->matchingpath = LABEL();
|
|
break;
|
|
|
|
case OP_EXACT:
|
|
break;
|
|
|
|
case OP_POSSTAR:
|
|
#if defined SUPPORT_UNICODE && PCRE2_CODE_UNIT_WIDTH != 32
|
|
if (common->utf)
|
|
{
|
|
OP1(SLJIT_MOV, tmp_base, tmp_offset, STR_PTR, 0);
|
|
label = LABEL();
|
|
compile_char1_matchingpath(common, type, cc, &no_match, TRUE);
|
|
OP1(SLJIT_MOV, tmp_base, tmp_offset, STR_PTR, 0);
|
|
JUMPTO(SLJIT_JUMP, label);
|
|
set_jumps(no_match, LABEL());
|
|
OP1(SLJIT_MOV, STR_PTR, 0, tmp_base, tmp_offset);
|
|
if (fast_str_ptr != 0)
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), fast_str_ptr, STR_PTR, 0);
|
|
break;
|
|
}
|
|
#endif
|
|
label = LABEL();
|
|
detect_partial_match(common, &no_match);
|
|
compile_char1_matchingpath(common, type, cc, &no_char1_match, FALSE);
|
|
JUMPTO(SLJIT_JUMP, label);
|
|
set_jumps(no_char1_match, LABEL());
|
|
OP2(SLJIT_SUB, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1));
|
|
set_jumps(no_match, LABEL());
|
|
if (fast_str_ptr != 0)
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), fast_str_ptr, STR_PTR, 0);
|
|
break;
|
|
|
|
case OP_POSUPTO:
|
|
SLJIT_ASSERT(fast_str_ptr == 0);
|
|
#if defined SUPPORT_UNICODE && PCRE2_CODE_UNIT_WIDTH != 32
|
|
if (common->utf)
|
|
{
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), POSSESSIVE1, STR_PTR, 0);
|
|
OP1(SLJIT_MOV, tmp_base, tmp_offset, SLJIT_IMM, max);
|
|
label = LABEL();
|
|
compile_char1_matchingpath(common, type, cc, &no_match, TRUE);
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), POSSESSIVE1, STR_PTR, 0);
|
|
OP2(SLJIT_SUB | SLJIT_SET_E, tmp_base, tmp_offset, tmp_base, tmp_offset, SLJIT_IMM, 1);
|
|
JUMPTO(SLJIT_NOT_ZERO, label);
|
|
set_jumps(no_match, LABEL());
|
|
OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_MEM1(SLJIT_SP), POSSESSIVE1);
|
|
break;
|
|
}
|
|
#endif
|
|
OP1(SLJIT_MOV, tmp_base, tmp_offset, SLJIT_IMM, max);
|
|
label = LABEL();
|
|
detect_partial_match(common, &no_match);
|
|
compile_char1_matchingpath(common, type, cc, &no_char1_match, FALSE);
|
|
OP2(SLJIT_SUB | SLJIT_SET_E, tmp_base, tmp_offset, tmp_base, tmp_offset, SLJIT_IMM, 1);
|
|
JUMPTO(SLJIT_NOT_ZERO, label);
|
|
OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1));
|
|
set_jumps(no_char1_match, LABEL());
|
|
OP2(SLJIT_SUB, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1));
|
|
set_jumps(no_match, LABEL());
|
|
break;
|
|
|
|
case OP_POSQUERY:
|
|
SLJIT_ASSERT(fast_str_ptr == 0);
|
|
OP1(SLJIT_MOV, tmp_base, tmp_offset, STR_PTR, 0);
|
|
compile_char1_matchingpath(common, type, cc, &no_match, TRUE);
|
|
OP1(SLJIT_MOV, tmp_base, tmp_offset, STR_PTR, 0);
|
|
set_jumps(no_match, LABEL());
|
|
OP1(SLJIT_MOV, STR_PTR, 0, tmp_base, tmp_offset);
|
|
break;
|
|
|
|
default:
|
|
SLJIT_ASSERT_STOP();
|
|
break;
|
|
}
|
|
|
|
count_match(common);
|
|
return end;
|
|
}
|
|
|
|
static SLJIT_INLINE PCRE2_SPTR compile_fail_accept_matchingpath(compiler_common *common, PCRE2_SPTR cc, backtrack_common *parent)
|
|
{
|
|
DEFINE_COMPILER;
|
|
backtrack_common *backtrack;
|
|
|
|
PUSH_BACKTRACK(sizeof(backtrack_common), cc, NULL);
|
|
|
|
if (*cc == OP_FAIL)
|
|
{
|
|
add_jump(compiler, &backtrack->topbacktracks, JUMP(SLJIT_JUMP));
|
|
return cc + 1;
|
|
}
|
|
|
|
if (*cc == OP_ASSERT_ACCEPT || common->currententry != NULL || !common->might_be_empty)
|
|
{
|
|
/* No need to check notempty conditions. */
|
|
if (common->accept_label == NULL)
|
|
add_jump(compiler, &common->accept, JUMP(SLJIT_JUMP));
|
|
else
|
|
JUMPTO(SLJIT_JUMP, common->accept_label);
|
|
return cc + 1;
|
|
}
|
|
|
|
if (common->accept_label == NULL)
|
|
add_jump(compiler, &common->accept, CMP(SLJIT_NOT_EQUAL, STR_PTR, 0, SLJIT_MEM1(SLJIT_SP), OVECTOR(0)));
|
|
else
|
|
CMPTO(SLJIT_NOT_EQUAL, STR_PTR, 0, SLJIT_MEM1(SLJIT_SP), OVECTOR(0), common->accept_label);
|
|
OP1(SLJIT_MOV, TMP1, 0, ARGUMENTS, 0);
|
|
OP1(SLJIT_MOV_U32, TMP2, 0, SLJIT_MEM1(TMP1), SLJIT_OFFSETOF(jit_arguments, options));
|
|
OP2(SLJIT_AND | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP2, 0, SLJIT_IMM, PCRE2_NOTEMPTY);
|
|
add_jump(compiler, &backtrack->topbacktracks, JUMP(SLJIT_NOT_ZERO));
|
|
OP2(SLJIT_AND | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP2, 0, SLJIT_IMM, PCRE2_NOTEMPTY_ATSTART);
|
|
if (common->accept_label == NULL)
|
|
add_jump(compiler, &common->accept, JUMP(SLJIT_ZERO));
|
|
else
|
|
JUMPTO(SLJIT_ZERO, common->accept_label);
|
|
OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(TMP1), SLJIT_OFFSETOF(jit_arguments, str));
|
|
if (common->accept_label == NULL)
|
|
add_jump(compiler, &common->accept, CMP(SLJIT_NOT_EQUAL, TMP2, 0, STR_PTR, 0));
|
|
else
|
|
CMPTO(SLJIT_NOT_EQUAL, TMP2, 0, STR_PTR, 0, common->accept_label);
|
|
add_jump(compiler, &backtrack->topbacktracks, JUMP(SLJIT_JUMP));
|
|
return cc + 1;
|
|
}
|
|
|
|
static SLJIT_INLINE PCRE2_SPTR compile_close_matchingpath(compiler_common *common, PCRE2_SPTR cc)
|
|
{
|
|
DEFINE_COMPILER;
|
|
int offset = GET2(cc, 1);
|
|
BOOL optimized_cbracket = common->optimized_cbracket[offset] != 0;
|
|
|
|
/* Data will be discarded anyway... */
|
|
if (common->currententry != NULL)
|
|
return cc + 1 + IMM2_SIZE;
|
|
|
|
if (!optimized_cbracket)
|
|
OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_SP), OVECTOR_PRIV(offset));
|
|
offset <<= 1;
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), OVECTOR(offset + 1), STR_PTR, 0);
|
|
if (!optimized_cbracket)
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), OVECTOR(offset), TMP1, 0);
|
|
return cc + 1 + IMM2_SIZE;
|
|
}
|
|
|
|
static SLJIT_INLINE PCRE2_SPTR compile_control_verb_matchingpath(compiler_common *common, PCRE2_SPTR cc, backtrack_common *parent)
|
|
{
|
|
DEFINE_COMPILER;
|
|
backtrack_common *backtrack;
|
|
PCRE2_UCHAR opcode = *cc;
|
|
PCRE2_SPTR ccend = cc + 1;
|
|
|
|
if (opcode == OP_PRUNE_ARG || opcode == OP_SKIP_ARG || opcode == OP_THEN_ARG)
|
|
ccend += 2 + cc[1];
|
|
|
|
PUSH_BACKTRACK(sizeof(backtrack_common), cc, NULL);
|
|
|
|
if (opcode == OP_SKIP)
|
|
{
|
|
allocate_stack(common, 1);
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), STR_PTR, 0);
|
|
return ccend;
|
|
}
|
|
|
|
if (opcode == OP_PRUNE_ARG || opcode == OP_THEN_ARG)
|
|
{
|
|
OP1(SLJIT_MOV, TMP1, 0, ARGUMENTS, 0);
|
|
OP1(SLJIT_MOV, TMP2, 0, SLJIT_IMM, (sljit_sw)(cc + 2));
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), common->mark_ptr, TMP2, 0);
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(TMP1), SLJIT_OFFSETOF(jit_arguments, mark_ptr), TMP2, 0);
|
|
}
|
|
|
|
return ccend;
|
|
}
|
|
|
|
static PCRE2_UCHAR then_trap_opcode[1] = { OP_THEN_TRAP };
|
|
|
|
static SLJIT_INLINE void compile_then_trap_matchingpath(compiler_common *common, PCRE2_SPTR cc, PCRE2_SPTR ccend, backtrack_common *parent)
|
|
{
|
|
DEFINE_COMPILER;
|
|
backtrack_common *backtrack;
|
|
BOOL needs_control_head;
|
|
int size;
|
|
|
|
PUSH_BACKTRACK_NOVALUE(sizeof(then_trap_backtrack), cc);
|
|
common->then_trap = BACKTRACK_AS(then_trap_backtrack);
|
|
BACKTRACK_AS(then_trap_backtrack)->common.cc = then_trap_opcode;
|
|
BACKTRACK_AS(then_trap_backtrack)->start = (sljit_sw)(cc - common->start);
|
|
BACKTRACK_AS(then_trap_backtrack)->framesize = get_framesize(common, cc, ccend, FALSE, &needs_control_head);
|
|
|
|
size = BACKTRACK_AS(then_trap_backtrack)->framesize;
|
|
size = 3 + (size < 0 ? 0 : size);
|
|
|
|
OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(SLJIT_SP), common->control_head_ptr);
|
|
allocate_stack(common, size);
|
|
if (size > 3)
|
|
OP2(SLJIT_SUB, SLJIT_MEM1(SLJIT_SP), common->control_head_ptr, STACK_TOP, 0, SLJIT_IMM, (size - 3) * sizeof(sljit_sw));
|
|
else
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), common->control_head_ptr, STACK_TOP, 0);
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(size - 1), SLJIT_IMM, BACKTRACK_AS(then_trap_backtrack)->start);
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(size - 2), SLJIT_IMM, type_then_trap);
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(size - 3), TMP2, 0);
|
|
|
|
size = BACKTRACK_AS(then_trap_backtrack)->framesize;
|
|
if (size >= 0)
|
|
init_frame(common, cc, ccend, size - 1, 0, FALSE);
|
|
}
|
|
|
|
static void compile_matchingpath(compiler_common *common, PCRE2_SPTR cc, PCRE2_SPTR ccend, backtrack_common *parent)
|
|
{
|
|
DEFINE_COMPILER;
|
|
backtrack_common *backtrack;
|
|
BOOL has_then_trap = FALSE;
|
|
then_trap_backtrack *save_then_trap = NULL;
|
|
|
|
SLJIT_ASSERT(*ccend == OP_END || (*ccend >= OP_ALT && *ccend <= OP_KETRPOS));
|
|
|
|
if (common->has_then && common->then_offsets[cc - common->start] != 0)
|
|
{
|
|
SLJIT_ASSERT(*ccend != OP_END && common->control_head_ptr != 0);
|
|
has_then_trap = TRUE;
|
|
save_then_trap = common->then_trap;
|
|
/* Tail item on backtrack. */
|
|
compile_then_trap_matchingpath(common, cc, ccend, parent);
|
|
}
|
|
|
|
while (cc < ccend)
|
|
{
|
|
switch(*cc)
|
|
{
|
|
case OP_SOD:
|
|
case OP_SOM:
|
|
case OP_NOT_WORD_BOUNDARY:
|
|
case OP_WORD_BOUNDARY:
|
|
case OP_EODN:
|
|
case OP_EOD:
|
|
case OP_DOLL:
|
|
case OP_DOLLM:
|
|
case OP_CIRC:
|
|
case OP_CIRCM:
|
|
case OP_REVERSE:
|
|
cc = compile_simple_assertion_matchingpath(common, *cc, cc + 1, parent->top != NULL ? &parent->top->nextbacktracks : &parent->topbacktracks);
|
|
break;
|
|
|
|
case OP_NOT_DIGIT:
|
|
case OP_DIGIT:
|
|
case OP_NOT_WHITESPACE:
|
|
case OP_WHITESPACE:
|
|
case OP_NOT_WORDCHAR:
|
|
case OP_WORDCHAR:
|
|
case OP_ANY:
|
|
case OP_ALLANY:
|
|
case OP_ANYBYTE:
|
|
case OP_NOTPROP:
|
|
case OP_PROP:
|
|
case OP_ANYNL:
|
|
case OP_NOT_HSPACE:
|
|
case OP_HSPACE:
|
|
case OP_NOT_VSPACE:
|
|
case OP_VSPACE:
|
|
case OP_EXTUNI:
|
|
case OP_NOT:
|
|
case OP_NOTI:
|
|
cc = compile_char1_matchingpath(common, *cc, cc + 1, parent->top != NULL ? &parent->top->nextbacktracks : &parent->topbacktracks, TRUE);
|
|
break;
|
|
|
|
case OP_SET_SOM:
|
|
PUSH_BACKTRACK_NOVALUE(sizeof(backtrack_common), cc);
|
|
OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(SLJIT_SP), OVECTOR(0));
|
|
allocate_stack(common, 1);
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), OVECTOR(0), STR_PTR, 0);
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), TMP2, 0);
|
|
cc++;
|
|
break;
|
|
|
|
case OP_CHAR:
|
|
case OP_CHARI:
|
|
if (common->mode == PCRE2_JIT_COMPLETE)
|
|
cc = compile_charn_matchingpath(common, cc, ccend, parent->top != NULL ? &parent->top->nextbacktracks : &parent->topbacktracks);
|
|
else
|
|
cc = compile_char1_matchingpath(common, *cc, cc + 1, parent->top != NULL ? &parent->top->nextbacktracks : &parent->topbacktracks, TRUE);
|
|
break;
|
|
|
|
case OP_STAR:
|
|
case OP_MINSTAR:
|
|
case OP_PLUS:
|
|
case OP_MINPLUS:
|
|
case OP_QUERY:
|
|
case OP_MINQUERY:
|
|
case OP_UPTO:
|
|
case OP_MINUPTO:
|
|
case OP_EXACT:
|
|
case OP_POSSTAR:
|
|
case OP_POSPLUS:
|
|
case OP_POSQUERY:
|
|
case OP_POSUPTO:
|
|
case OP_STARI:
|
|
case OP_MINSTARI:
|
|
case OP_PLUSI:
|
|
case OP_MINPLUSI:
|
|
case OP_QUERYI:
|
|
case OP_MINQUERYI:
|
|
case OP_UPTOI:
|
|
case OP_MINUPTOI:
|
|
case OP_EXACTI:
|
|
case OP_POSSTARI:
|
|
case OP_POSPLUSI:
|
|
case OP_POSQUERYI:
|
|
case OP_POSUPTOI:
|
|
case OP_NOTSTAR:
|
|
case OP_NOTMINSTAR:
|
|
case OP_NOTPLUS:
|
|
case OP_NOTMINPLUS:
|
|
case OP_NOTQUERY:
|
|
case OP_NOTMINQUERY:
|
|
case OP_NOTUPTO:
|
|
case OP_NOTMINUPTO:
|
|
case OP_NOTEXACT:
|
|
case OP_NOTPOSSTAR:
|
|
case OP_NOTPOSPLUS:
|
|
case OP_NOTPOSQUERY:
|
|
case OP_NOTPOSUPTO:
|
|
case OP_NOTSTARI:
|
|
case OP_NOTMINSTARI:
|
|
case OP_NOTPLUSI:
|
|
case OP_NOTMINPLUSI:
|
|
case OP_NOTQUERYI:
|
|
case OP_NOTMINQUERYI:
|
|
case OP_NOTUPTOI:
|
|
case OP_NOTMINUPTOI:
|
|
case OP_NOTEXACTI:
|
|
case OP_NOTPOSSTARI:
|
|
case OP_NOTPOSPLUSI:
|
|
case OP_NOTPOSQUERYI:
|
|
case OP_NOTPOSUPTOI:
|
|
case OP_TYPESTAR:
|
|
case OP_TYPEMINSTAR:
|
|
case OP_TYPEPLUS:
|
|
case OP_TYPEMINPLUS:
|
|
case OP_TYPEQUERY:
|
|
case OP_TYPEMINQUERY:
|
|
case OP_TYPEUPTO:
|
|
case OP_TYPEMINUPTO:
|
|
case OP_TYPEEXACT:
|
|
case OP_TYPEPOSSTAR:
|
|
case OP_TYPEPOSPLUS:
|
|
case OP_TYPEPOSQUERY:
|
|
case OP_TYPEPOSUPTO:
|
|
cc = compile_iterator_matchingpath(common, cc, parent);
|
|
break;
|
|
|
|
case OP_CLASS:
|
|
case OP_NCLASS:
|
|
if (cc[1 + (32 / sizeof(PCRE2_UCHAR))] >= OP_CRSTAR && cc[1 + (32 / sizeof(PCRE2_UCHAR))] <= OP_CRPOSRANGE)
|
|
cc = compile_iterator_matchingpath(common, cc, parent);
|
|
else
|
|
cc = compile_char1_matchingpath(common, *cc, cc + 1, parent->top != NULL ? &parent->top->nextbacktracks : &parent->topbacktracks, TRUE);
|
|
break;
|
|
|
|
#if defined SUPPORT_UNICODE || PCRE2_CODE_UNIT_WIDTH == 16 || PCRE2_CODE_UNIT_WIDTH == 32
|
|
case OP_XCLASS:
|
|
if (*(cc + GET(cc, 1)) >= OP_CRSTAR && *(cc + GET(cc, 1)) <= OP_CRPOSRANGE)
|
|
cc = compile_iterator_matchingpath(common, cc, parent);
|
|
else
|
|
cc = compile_char1_matchingpath(common, *cc, cc + 1, parent->top != NULL ? &parent->top->nextbacktracks : &parent->topbacktracks, TRUE);
|
|
break;
|
|
#endif
|
|
|
|
case OP_REF:
|
|
case OP_REFI:
|
|
if (cc[1 + IMM2_SIZE] >= OP_CRSTAR && cc[1 + IMM2_SIZE] <= OP_CRPOSRANGE)
|
|
cc = compile_ref_iterator_matchingpath(common, cc, parent);
|
|
else
|
|
{
|
|
compile_ref_matchingpath(common, cc, parent->top != NULL ? &parent->top->nextbacktracks : &parent->topbacktracks, TRUE, FALSE);
|
|
cc += 1 + IMM2_SIZE;
|
|
}
|
|
break;
|
|
|
|
case OP_DNREF:
|
|
case OP_DNREFI:
|
|
if (cc[1 + 2 * IMM2_SIZE] >= OP_CRSTAR && cc[1 + 2 * IMM2_SIZE] <= OP_CRPOSRANGE)
|
|
cc = compile_ref_iterator_matchingpath(common, cc, parent);
|
|
else
|
|
{
|
|
compile_dnref_search(common, cc, parent->top != NULL ? &parent->top->nextbacktracks : &parent->topbacktracks);
|
|
compile_ref_matchingpath(common, cc, parent->top != NULL ? &parent->top->nextbacktracks : &parent->topbacktracks, TRUE, FALSE);
|
|
cc += 1 + 2 * IMM2_SIZE;
|
|
}
|
|
break;
|
|
|
|
case OP_RECURSE:
|
|
cc = compile_recurse_matchingpath(common, cc, parent);
|
|
break;
|
|
|
|
case OP_CALLOUT:
|
|
case OP_CALLOUT_STR:
|
|
cc = compile_callout_matchingpath(common, cc, parent);
|
|
break;
|
|
|
|
case OP_ASSERT:
|
|
case OP_ASSERT_NOT:
|
|
case OP_ASSERTBACK:
|
|
case OP_ASSERTBACK_NOT:
|
|
PUSH_BACKTRACK_NOVALUE(sizeof(assert_backtrack), cc);
|
|
cc = compile_assert_matchingpath(common, cc, BACKTRACK_AS(assert_backtrack), FALSE);
|
|
break;
|
|
|
|
case OP_BRAMINZERO:
|
|
PUSH_BACKTRACK_NOVALUE(sizeof(braminzero_backtrack), cc);
|
|
cc = bracketend(cc + 1);
|
|
if (*(cc - 1 - LINK_SIZE) != OP_KETRMIN)
|
|
{
|
|
allocate_stack(common, 1);
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), STR_PTR, 0);
|
|
}
|
|
else
|
|
{
|
|
allocate_stack(common, 2);
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), SLJIT_IMM, 0);
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(1), STR_PTR, 0);
|
|
}
|
|
BACKTRACK_AS(braminzero_backtrack)->matchingpath = LABEL();
|
|
count_match(common);
|
|
break;
|
|
|
|
case OP_ONCE:
|
|
case OP_ONCE_NC:
|
|
case OP_BRA:
|
|
case OP_CBRA:
|
|
case OP_COND:
|
|
case OP_SBRA:
|
|
case OP_SCBRA:
|
|
case OP_SCOND:
|
|
cc = compile_bracket_matchingpath(common, cc, parent);
|
|
break;
|
|
|
|
case OP_BRAZERO:
|
|
if (cc[1] > OP_ASSERTBACK_NOT)
|
|
cc = compile_bracket_matchingpath(common, cc, parent);
|
|
else
|
|
{
|
|
PUSH_BACKTRACK_NOVALUE(sizeof(assert_backtrack), cc);
|
|
cc = compile_assert_matchingpath(common, cc, BACKTRACK_AS(assert_backtrack), FALSE);
|
|
}
|
|
break;
|
|
|
|
case OP_BRAPOS:
|
|
case OP_CBRAPOS:
|
|
case OP_SBRAPOS:
|
|
case OP_SCBRAPOS:
|
|
case OP_BRAPOSZERO:
|
|
cc = compile_bracketpos_matchingpath(common, cc, parent);
|
|
break;
|
|
|
|
case OP_MARK:
|
|
PUSH_BACKTRACK_NOVALUE(sizeof(backtrack_common), cc);
|
|
SLJIT_ASSERT(common->mark_ptr != 0);
|
|
OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(SLJIT_SP), common->mark_ptr);
|
|
allocate_stack(common, common->has_skip_arg ? 5 : 1);
|
|
OP1(SLJIT_MOV, TMP1, 0, ARGUMENTS, 0);
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(common->has_skip_arg ? 4 : 0), TMP2, 0);
|
|
OP1(SLJIT_MOV, TMP2, 0, SLJIT_IMM, (sljit_sw)(cc + 2));
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), common->mark_ptr, TMP2, 0);
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(TMP1), SLJIT_OFFSETOF(jit_arguments, mark_ptr), TMP2, 0);
|
|
if (common->has_skip_arg)
|
|
{
|
|
OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_SP), common->control_head_ptr);
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), common->control_head_ptr, STACK_TOP, 0);
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(1), SLJIT_IMM, type_mark);
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(2), SLJIT_IMM, (sljit_sw)(cc + 2));
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(3), STR_PTR, 0);
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), TMP1, 0);
|
|
}
|
|
cc += 1 + 2 + cc[1];
|
|
break;
|
|
|
|
case OP_PRUNE:
|
|
case OP_PRUNE_ARG:
|
|
case OP_SKIP:
|
|
case OP_SKIP_ARG:
|
|
case OP_THEN:
|
|
case OP_THEN_ARG:
|
|
case OP_COMMIT:
|
|
cc = compile_control_verb_matchingpath(common, cc, parent);
|
|
break;
|
|
|
|
case OP_FAIL:
|
|
case OP_ACCEPT:
|
|
case OP_ASSERT_ACCEPT:
|
|
cc = compile_fail_accept_matchingpath(common, cc, parent);
|
|
break;
|
|
|
|
case OP_CLOSE:
|
|
cc = compile_close_matchingpath(common, cc);
|
|
break;
|
|
|
|
case OP_SKIPZERO:
|
|
cc = bracketend(cc + 1);
|
|
break;
|
|
|
|
default:
|
|
SLJIT_ASSERT_STOP();
|
|
return;
|
|
}
|
|
if (cc == NULL)
|
|
return;
|
|
}
|
|
|
|
if (has_then_trap)
|
|
{
|
|
/* Head item on backtrack. */
|
|
PUSH_BACKTRACK_NOVALUE(sizeof(then_trap_backtrack), cc);
|
|
BACKTRACK_AS(then_trap_backtrack)->common.cc = then_trap_opcode;
|
|
BACKTRACK_AS(then_trap_backtrack)->then_trap = common->then_trap;
|
|
common->then_trap = save_then_trap;
|
|
}
|
|
SLJIT_ASSERT(cc == ccend);
|
|
}
|
|
|
|
#undef PUSH_BACKTRACK
|
|
#undef PUSH_BACKTRACK_NOVALUE
|
|
#undef BACKTRACK_AS
|
|
|
|
#define COMPILE_BACKTRACKINGPATH(current) \
|
|
do \
|
|
{ \
|
|
compile_backtrackingpath(common, (current)); \
|
|
if (SLJIT_UNLIKELY(sljit_get_compiler_error(compiler))) \
|
|
return; \
|
|
} \
|
|
while (0)
|
|
|
|
#define CURRENT_AS(type) ((type *)current)
|
|
|
|
static void compile_iterator_backtrackingpath(compiler_common *common, struct backtrack_common *current)
|
|
{
|
|
DEFINE_COMPILER;
|
|
PCRE2_SPTR cc = current->cc;
|
|
PCRE2_UCHAR opcode;
|
|
PCRE2_UCHAR type;
|
|
sljit_u32 max = 0, exact;
|
|
struct sljit_label *label = NULL;
|
|
struct sljit_jump *jump = NULL;
|
|
jump_list *jumplist = NULL;
|
|
PCRE2_SPTR end;
|
|
int private_data_ptr = PRIVATE_DATA(cc);
|
|
int base = (private_data_ptr == 0) ? SLJIT_MEM1(STACK_TOP) : SLJIT_MEM1(SLJIT_SP);
|
|
int offset0 = (private_data_ptr == 0) ? STACK(0) : private_data_ptr;
|
|
int offset1 = (private_data_ptr == 0) ? STACK(1) : private_data_ptr + (int)sizeof(sljit_sw);
|
|
|
|
cc = get_iterator_parameters(common, cc, &opcode, &type, &max, &exact, &end);
|
|
|
|
switch(opcode)
|
|
{
|
|
case OP_STAR:
|
|
case OP_UPTO:
|
|
if (type == OP_ANYNL || type == OP_EXTUNI)
|
|
{
|
|
SLJIT_ASSERT(private_data_ptr == 0);
|
|
set_jumps(CURRENT_AS(char_iterator_backtrack)->u.backtracks, LABEL());
|
|
OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_MEM1(STACK_TOP), STACK(0));
|
|
free_stack(common, 1);
|
|
CMPTO(SLJIT_NOT_EQUAL, STR_PTR, 0, SLJIT_IMM, 0, CURRENT_AS(char_iterator_backtrack)->matchingpath);
|
|
}
|
|
else
|
|
{
|
|
if (CURRENT_AS(char_iterator_backtrack)->u.charpos.enabled)
|
|
{
|
|
OP1(SLJIT_MOV, STR_PTR, 0, base, offset0);
|
|
OP1(SLJIT_MOV, TMP2, 0, base, offset1);
|
|
OP2(SLJIT_SUB, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1));
|
|
|
|
jump = CMP(SLJIT_LESS_EQUAL, STR_PTR, 0, TMP2, 0);
|
|
label = LABEL();
|
|
OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(-1));
|
|
OP1(SLJIT_MOV, base, offset0, STR_PTR, 0);
|
|
if (CURRENT_AS(char_iterator_backtrack)->u.charpos.othercasebit != 0)
|
|
OP2(SLJIT_OR, TMP1, 0, TMP1, 0, SLJIT_IMM, CURRENT_AS(char_iterator_backtrack)->u.charpos.othercasebit);
|
|
CMPTO(SLJIT_EQUAL, TMP1, 0, SLJIT_IMM, CURRENT_AS(char_iterator_backtrack)->u.charpos.chr, CURRENT_AS(char_iterator_backtrack)->matchingpath);
|
|
skip_char_back(common);
|
|
CMPTO(SLJIT_GREATER, STR_PTR, 0, TMP2, 0, label);
|
|
}
|
|
else
|
|
{
|
|
OP1(SLJIT_MOV, STR_PTR, 0, base, offset0);
|
|
jump = CMP(SLJIT_LESS_EQUAL, STR_PTR, 0, base, offset1);
|
|
skip_char_back(common);
|
|
OP1(SLJIT_MOV, base, offset0, STR_PTR, 0);
|
|
JUMPTO(SLJIT_JUMP, CURRENT_AS(char_iterator_backtrack)->matchingpath);
|
|
}
|
|
JUMPHERE(jump);
|
|
if (private_data_ptr == 0)
|
|
free_stack(common, 2);
|
|
}
|
|
break;
|
|
|
|
case OP_MINSTAR:
|
|
OP1(SLJIT_MOV, STR_PTR, 0, base, offset0);
|
|
compile_char1_matchingpath(common, type, cc, &jumplist, TRUE);
|
|
OP1(SLJIT_MOV, base, offset0, STR_PTR, 0);
|
|
JUMPTO(SLJIT_JUMP, CURRENT_AS(char_iterator_backtrack)->matchingpath);
|
|
set_jumps(jumplist, LABEL());
|
|
if (private_data_ptr == 0)
|
|
free_stack(common, 1);
|
|
break;
|
|
|
|
case OP_MINUPTO:
|
|
OP1(SLJIT_MOV, TMP1, 0, base, offset1);
|
|
OP1(SLJIT_MOV, STR_PTR, 0, base, offset0);
|
|
OP2(SLJIT_SUB | SLJIT_SET_E, TMP1, 0, TMP1, 0, SLJIT_IMM, 1);
|
|
add_jump(compiler, &jumplist, JUMP(SLJIT_ZERO));
|
|
|
|
OP1(SLJIT_MOV, base, offset1, TMP1, 0);
|
|
compile_char1_matchingpath(common, type, cc, &jumplist, TRUE);
|
|
OP1(SLJIT_MOV, base, offset0, STR_PTR, 0);
|
|
JUMPTO(SLJIT_JUMP, CURRENT_AS(char_iterator_backtrack)->matchingpath);
|
|
|
|
set_jumps(jumplist, LABEL());
|
|
if (private_data_ptr == 0)
|
|
free_stack(common, 2);
|
|
break;
|
|
|
|
case OP_QUERY:
|
|
OP1(SLJIT_MOV, STR_PTR, 0, base, offset0);
|
|
OP1(SLJIT_MOV, base, offset0, SLJIT_IMM, 0);
|
|
CMPTO(SLJIT_NOT_EQUAL, STR_PTR, 0, SLJIT_IMM, 0, CURRENT_AS(char_iterator_backtrack)->matchingpath);
|
|
jump = JUMP(SLJIT_JUMP);
|
|
set_jumps(CURRENT_AS(char_iterator_backtrack)->u.backtracks, LABEL());
|
|
OP1(SLJIT_MOV, STR_PTR, 0, base, offset0);
|
|
OP1(SLJIT_MOV, base, offset0, SLJIT_IMM, 0);
|
|
JUMPTO(SLJIT_JUMP, CURRENT_AS(char_iterator_backtrack)->matchingpath);
|
|
JUMPHERE(jump);
|
|
if (private_data_ptr == 0)
|
|
free_stack(common, 1);
|
|
break;
|
|
|
|
case OP_MINQUERY:
|
|
OP1(SLJIT_MOV, STR_PTR, 0, base, offset0);
|
|
OP1(SLJIT_MOV, base, offset0, SLJIT_IMM, 0);
|
|
jump = CMP(SLJIT_EQUAL, STR_PTR, 0, SLJIT_IMM, 0);
|
|
compile_char1_matchingpath(common, type, cc, &jumplist, TRUE);
|
|
JUMPTO(SLJIT_JUMP, CURRENT_AS(char_iterator_backtrack)->matchingpath);
|
|
set_jumps(jumplist, LABEL());
|
|
JUMPHERE(jump);
|
|
if (private_data_ptr == 0)
|
|
free_stack(common, 1);
|
|
break;
|
|
|
|
case OP_EXACT:
|
|
case OP_POSSTAR:
|
|
case OP_POSQUERY:
|
|
case OP_POSUPTO:
|
|
break;
|
|
|
|
default:
|
|
SLJIT_ASSERT_STOP();
|
|
break;
|
|
}
|
|
|
|
set_jumps(current->topbacktracks, LABEL());
|
|
}
|
|
|
|
static SLJIT_INLINE void compile_ref_iterator_backtrackingpath(compiler_common *common, struct backtrack_common *current)
|
|
{
|
|
DEFINE_COMPILER;
|
|
PCRE2_SPTR cc = current->cc;
|
|
BOOL ref = (*cc == OP_REF || *cc == OP_REFI);
|
|
PCRE2_UCHAR type;
|
|
|
|
type = cc[ref ? 1 + IMM2_SIZE : 1 + 2 * IMM2_SIZE];
|
|
|
|
if ((type & 0x1) == 0)
|
|
{
|
|
/* Maximize case. */
|
|
set_jumps(current->topbacktracks, LABEL());
|
|
OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_MEM1(STACK_TOP), STACK(0));
|
|
free_stack(common, 1);
|
|
CMPTO(SLJIT_NOT_EQUAL, STR_PTR, 0, SLJIT_IMM, 0, CURRENT_AS(ref_iterator_backtrack)->matchingpath);
|
|
return;
|
|
}
|
|
|
|
OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_MEM1(STACK_TOP), STACK(0));
|
|
CMPTO(SLJIT_NOT_EQUAL, STR_PTR, 0, SLJIT_IMM, 0, CURRENT_AS(ref_iterator_backtrack)->matchingpath);
|
|
set_jumps(current->topbacktracks, LABEL());
|
|
free_stack(common, ref ? 2 : 3);
|
|
}
|
|
|
|
static SLJIT_INLINE void compile_recurse_backtrackingpath(compiler_common *common, struct backtrack_common *current)
|
|
{
|
|
DEFINE_COMPILER;
|
|
|
|
if (CURRENT_AS(recurse_backtrack)->inlined_pattern)
|
|
compile_backtrackingpath(common, current->top);
|
|
set_jumps(current->topbacktracks, LABEL());
|
|
if (CURRENT_AS(recurse_backtrack)->inlined_pattern)
|
|
return;
|
|
|
|
if (common->has_set_som && common->mark_ptr != 0)
|
|
{
|
|
OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(STACK_TOP), STACK(0));
|
|
OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(STACK_TOP), STACK(1));
|
|
free_stack(common, 2);
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), OVECTOR(0), TMP2, 0);
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), common->mark_ptr, TMP1, 0);
|
|
}
|
|
else if (common->has_set_som || common->mark_ptr != 0)
|
|
{
|
|
OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(STACK_TOP), STACK(0));
|
|
free_stack(common, 1);
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), common->has_set_som ? (int)(OVECTOR(0)) : common->mark_ptr, TMP2, 0);
|
|
}
|
|
}
|
|
|
|
static void compile_assert_backtrackingpath(compiler_common *common, struct backtrack_common *current)
|
|
{
|
|
DEFINE_COMPILER;
|
|
PCRE2_SPTR cc = current->cc;
|
|
PCRE2_UCHAR bra = OP_BRA;
|
|
struct sljit_jump *brajump = NULL;
|
|
|
|
SLJIT_ASSERT(*cc != OP_BRAMINZERO);
|
|
if (*cc == OP_BRAZERO)
|
|
{
|
|
bra = *cc;
|
|
cc++;
|
|
}
|
|
|
|
if (bra == OP_BRAZERO)
|
|
{
|
|
SLJIT_ASSERT(current->topbacktracks == NULL);
|
|
OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_MEM1(STACK_TOP), STACK(0));
|
|
}
|
|
|
|
if (CURRENT_AS(assert_backtrack)->framesize < 0)
|
|
{
|
|
set_jumps(current->topbacktracks, LABEL());
|
|
|
|
if (bra == OP_BRAZERO)
|
|
{
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), SLJIT_IMM, 0);
|
|
CMPTO(SLJIT_NOT_EQUAL, STR_PTR, 0, SLJIT_IMM, 0, CURRENT_AS(assert_backtrack)->matchingpath);
|
|
free_stack(common, 1);
|
|
}
|
|
return;
|
|
}
|
|
|
|
if (bra == OP_BRAZERO)
|
|
{
|
|
if (*cc == OP_ASSERT_NOT || *cc == OP_ASSERTBACK_NOT)
|
|
{
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), SLJIT_IMM, 0);
|
|
CMPTO(SLJIT_NOT_EQUAL, STR_PTR, 0, SLJIT_IMM, 0, CURRENT_AS(assert_backtrack)->matchingpath);
|
|
free_stack(common, 1);
|
|
return;
|
|
}
|
|
free_stack(common, 1);
|
|
brajump = CMP(SLJIT_EQUAL, STR_PTR, 0, SLJIT_IMM, 0);
|
|
}
|
|
|
|
if (*cc == OP_ASSERT || *cc == OP_ASSERTBACK)
|
|
{
|
|
OP1(SLJIT_MOV, STACK_TOP, 0, SLJIT_MEM1(SLJIT_SP), CURRENT_AS(assert_backtrack)->private_data_ptr);
|
|
add_jump(compiler, &common->revertframes, JUMP(SLJIT_FAST_CALL));
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), CURRENT_AS(assert_backtrack)->private_data_ptr, SLJIT_MEM1(STACK_TOP), CURRENT_AS(assert_backtrack)->framesize * sizeof(sljit_sw));
|
|
|
|
set_jumps(current->topbacktracks, LABEL());
|
|
}
|
|
else
|
|
set_jumps(current->topbacktracks, LABEL());
|
|
|
|
if (bra == OP_BRAZERO)
|
|
{
|
|
/* We know there is enough place on the stack. */
|
|
OP2(SLJIT_ADD, STACK_TOP, 0, STACK_TOP, 0, SLJIT_IMM, sizeof(sljit_sw));
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), SLJIT_IMM, 0);
|
|
JUMPTO(SLJIT_JUMP, CURRENT_AS(assert_backtrack)->matchingpath);
|
|
JUMPHERE(brajump);
|
|
}
|
|
}
|
|
|
|
static void compile_bracket_backtrackingpath(compiler_common *common, struct backtrack_common *current)
|
|
{
|
|
DEFINE_COMPILER;
|
|
int opcode, stacksize, alt_count, alt_max;
|
|
int offset = 0;
|
|
int private_data_ptr = CURRENT_AS(bracket_backtrack)->private_data_ptr;
|
|
int repeat_ptr = 0, repeat_type = 0, repeat_count = 0;
|
|
PCRE2_SPTR cc = current->cc;
|
|
PCRE2_SPTR ccbegin;
|
|
PCRE2_SPTR ccprev;
|
|
PCRE2_UCHAR bra = OP_BRA;
|
|
PCRE2_UCHAR ket;
|
|
assert_backtrack *assert;
|
|
sljit_uw *next_update_addr = NULL;
|
|
BOOL has_alternatives;
|
|
BOOL needs_control_head = FALSE;
|
|
struct sljit_jump *brazero = NULL;
|
|
struct sljit_jump *alt1 = NULL;
|
|
struct sljit_jump *alt2 = NULL;
|
|
struct sljit_jump *once = NULL;
|
|
struct sljit_jump *cond = NULL;
|
|
struct sljit_label *rmin_label = NULL;
|
|
struct sljit_label *exact_label = NULL;
|
|
|
|
if (*cc == OP_BRAZERO || *cc == OP_BRAMINZERO)
|
|
{
|
|
bra = *cc;
|
|
cc++;
|
|
}
|
|
|
|
opcode = *cc;
|
|
ccbegin = bracketend(cc) - 1 - LINK_SIZE;
|
|
ket = *ccbegin;
|
|
if (ket == OP_KET && PRIVATE_DATA(ccbegin) != 0)
|
|
{
|
|
repeat_ptr = PRIVATE_DATA(ccbegin);
|
|
repeat_type = PRIVATE_DATA(ccbegin + 2);
|
|
repeat_count = PRIVATE_DATA(ccbegin + 3);
|
|
SLJIT_ASSERT(repeat_type != 0 && repeat_count != 0);
|
|
if (repeat_type == OP_UPTO)
|
|
ket = OP_KETRMAX;
|
|
if (repeat_type == OP_MINUPTO)
|
|
ket = OP_KETRMIN;
|
|
}
|
|
ccbegin = cc;
|
|
cc += GET(cc, 1);
|
|
has_alternatives = *cc == OP_ALT;
|
|
if (SLJIT_UNLIKELY(opcode == OP_COND) || SLJIT_UNLIKELY(opcode == OP_SCOND))
|
|
has_alternatives = (ccbegin[1 + LINK_SIZE] >= OP_ASSERT && ccbegin[1 + LINK_SIZE] <= OP_ASSERTBACK_NOT) || CURRENT_AS(bracket_backtrack)->u.condfailed != NULL;
|
|
if (opcode == OP_CBRA || opcode == OP_SCBRA)
|
|
offset = (GET2(ccbegin, 1 + LINK_SIZE)) << 1;
|
|
if (SLJIT_UNLIKELY(opcode == OP_COND) && (*cc == OP_KETRMAX || *cc == OP_KETRMIN))
|
|
opcode = OP_SCOND;
|
|
if (SLJIT_UNLIKELY(opcode == OP_ONCE_NC))
|
|
opcode = OP_ONCE;
|
|
|
|
alt_max = has_alternatives ? no_alternatives(ccbegin) : 0;
|
|
|
|
/* Decoding the needs_control_head in framesize. */
|
|
if (opcode == OP_ONCE)
|
|
{
|
|
needs_control_head = (CURRENT_AS(bracket_backtrack)->u.framesize & 0x1) != 0;
|
|
CURRENT_AS(bracket_backtrack)->u.framesize >>= 1;
|
|
}
|
|
|
|
if (ket != OP_KET && repeat_type != 0)
|
|
{
|
|
/* TMP1 is used in OP_KETRMIN below. */
|
|
OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(STACK_TOP), STACK(0));
|
|
free_stack(common, 1);
|
|
if (repeat_type == OP_UPTO)
|
|
OP2(SLJIT_ADD, SLJIT_MEM1(SLJIT_SP), repeat_ptr, TMP1, 0, SLJIT_IMM, 1);
|
|
else
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), repeat_ptr, TMP1, 0);
|
|
}
|
|
|
|
if (ket == OP_KETRMAX)
|
|
{
|
|
if (bra == OP_BRAZERO)
|
|
{
|
|
OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(STACK_TOP), STACK(0));
|
|
free_stack(common, 1);
|
|
brazero = CMP(SLJIT_EQUAL, TMP1, 0, SLJIT_IMM, 0);
|
|
}
|
|
}
|
|
else if (ket == OP_KETRMIN)
|
|
{
|
|
if (bra != OP_BRAMINZERO)
|
|
{
|
|
OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_MEM1(STACK_TOP), STACK(0));
|
|
if (repeat_type != 0)
|
|
{
|
|
/* TMP1 was set a few lines above. */
|
|
CMPTO(SLJIT_NOT_EQUAL, TMP1, 0, SLJIT_IMM, 0, CURRENT_AS(bracket_backtrack)->recursive_matchingpath);
|
|
/* Drop STR_PTR for non-greedy plus quantifier. */
|
|
if (opcode != OP_ONCE)
|
|
free_stack(common, 1);
|
|
}
|
|
else if (opcode >= OP_SBRA || opcode == OP_ONCE)
|
|
{
|
|
/* Checking zero-length iteration. */
|
|
if (opcode != OP_ONCE || CURRENT_AS(bracket_backtrack)->u.framesize < 0)
|
|
CMPTO(SLJIT_NOT_EQUAL, STR_PTR, 0, SLJIT_MEM1(SLJIT_SP), private_data_ptr, CURRENT_AS(bracket_backtrack)->recursive_matchingpath);
|
|
else
|
|
{
|
|
OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_SP), private_data_ptr);
|
|
CMPTO(SLJIT_NOT_EQUAL, STR_PTR, 0, SLJIT_MEM1(TMP1), (CURRENT_AS(bracket_backtrack)->u.framesize + 1) * sizeof(sljit_sw), CURRENT_AS(bracket_backtrack)->recursive_matchingpath);
|
|
}
|
|
/* Drop STR_PTR for non-greedy plus quantifier. */
|
|
if (opcode != OP_ONCE)
|
|
free_stack(common, 1);
|
|
}
|
|
else
|
|
JUMPTO(SLJIT_JUMP, CURRENT_AS(bracket_backtrack)->recursive_matchingpath);
|
|
}
|
|
rmin_label = LABEL();
|
|
if (repeat_type != 0)
|
|
OP2(SLJIT_ADD, SLJIT_MEM1(SLJIT_SP), repeat_ptr, SLJIT_MEM1(SLJIT_SP), repeat_ptr, SLJIT_IMM, 1);
|
|
}
|
|
else if (bra == OP_BRAZERO)
|
|
{
|
|
OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(STACK_TOP), STACK(0));
|
|
free_stack(common, 1);
|
|
brazero = CMP(SLJIT_NOT_EQUAL, TMP1, 0, SLJIT_IMM, 0);
|
|
}
|
|
else if (repeat_type == OP_EXACT)
|
|
{
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), repeat_ptr, SLJIT_IMM, 1);
|
|
exact_label = LABEL();
|
|
}
|
|
|
|
if (offset != 0)
|
|
{
|
|
if (common->capture_last_ptr != 0)
|
|
{
|
|
SLJIT_ASSERT(common->optimized_cbracket[offset >> 1] == 0);
|
|
OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(STACK_TOP), STACK(0));
|
|
OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(STACK_TOP), STACK(1));
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), common->capture_last_ptr, TMP1, 0);
|
|
OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(STACK_TOP), STACK(2));
|
|
free_stack(common, 3);
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), OVECTOR(offset), TMP2, 0);
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), OVECTOR(offset + 1), TMP1, 0);
|
|
}
|
|
else if (common->optimized_cbracket[offset >> 1] == 0)
|
|
{
|
|
OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(STACK_TOP), STACK(0));
|
|
OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(STACK_TOP), STACK(1));
|
|
free_stack(common, 2);
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), OVECTOR(offset), TMP1, 0);
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), OVECTOR(offset + 1), TMP2, 0);
|
|
}
|
|
}
|
|
|
|
if (SLJIT_UNLIKELY(opcode == OP_ONCE))
|
|
{
|
|
if (CURRENT_AS(bracket_backtrack)->u.framesize >= 0)
|
|
{
|
|
OP1(SLJIT_MOV, STACK_TOP, 0, SLJIT_MEM1(SLJIT_SP), private_data_ptr);
|
|
add_jump(compiler, &common->revertframes, JUMP(SLJIT_FAST_CALL));
|
|
}
|
|
once = JUMP(SLJIT_JUMP);
|
|
}
|
|
else if (SLJIT_UNLIKELY(opcode == OP_COND) || SLJIT_UNLIKELY(opcode == OP_SCOND))
|
|
{
|
|
if (has_alternatives)
|
|
{
|
|
/* Always exactly one alternative. */
|
|
OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(STACK_TOP), STACK(0));
|
|
free_stack(common, 1);
|
|
|
|
alt_max = 2;
|
|
alt1 = CMP(SLJIT_EQUAL, TMP1, 0, SLJIT_IMM, sizeof(sljit_uw));
|
|
}
|
|
}
|
|
else if (has_alternatives)
|
|
{
|
|
OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(STACK_TOP), STACK(0));
|
|
free_stack(common, 1);
|
|
|
|
if (alt_max > 4)
|
|
{
|
|
/* Table jump if alt_max is greater than 4. */
|
|
next_update_addr = allocate_read_only_data(common, alt_max * sizeof(sljit_uw));
|
|
if (SLJIT_UNLIKELY(next_update_addr == NULL))
|
|
return;
|
|
sljit_emit_ijump(compiler, SLJIT_JUMP, SLJIT_MEM1(TMP1), (sljit_sw)next_update_addr);
|
|
add_label_addr(common, next_update_addr++);
|
|
}
|
|
else
|
|
{
|
|
if (alt_max == 4)
|
|
alt2 = CMP(SLJIT_GREATER_EQUAL, TMP1, 0, SLJIT_IMM, 2 * sizeof(sljit_uw));
|
|
alt1 = CMP(SLJIT_GREATER_EQUAL, TMP1, 0, SLJIT_IMM, sizeof(sljit_uw));
|
|
}
|
|
}
|
|
|
|
COMPILE_BACKTRACKINGPATH(current->top);
|
|
if (current->topbacktracks)
|
|
set_jumps(current->topbacktracks, LABEL());
|
|
|
|
if (SLJIT_UNLIKELY(opcode == OP_COND) || SLJIT_UNLIKELY(opcode == OP_SCOND))
|
|
{
|
|
/* Conditional block always has at most one alternative. */
|
|
if (ccbegin[1 + LINK_SIZE] >= OP_ASSERT && ccbegin[1 + LINK_SIZE] <= OP_ASSERTBACK_NOT)
|
|
{
|
|
SLJIT_ASSERT(has_alternatives);
|
|
assert = CURRENT_AS(bracket_backtrack)->u.assert;
|
|
if (assert->framesize >= 0 && (ccbegin[1 + LINK_SIZE] == OP_ASSERT || ccbegin[1 + LINK_SIZE] == OP_ASSERTBACK))
|
|
{
|
|
OP1(SLJIT_MOV, STACK_TOP, 0, SLJIT_MEM1(SLJIT_SP), assert->private_data_ptr);
|
|
add_jump(compiler, &common->revertframes, JUMP(SLJIT_FAST_CALL));
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), assert->private_data_ptr, SLJIT_MEM1(STACK_TOP), assert->framesize * sizeof(sljit_sw));
|
|
}
|
|
cond = JUMP(SLJIT_JUMP);
|
|
set_jumps(CURRENT_AS(bracket_backtrack)->u.assert->condfailed, LABEL());
|
|
}
|
|
else if (CURRENT_AS(bracket_backtrack)->u.condfailed != NULL)
|
|
{
|
|
SLJIT_ASSERT(has_alternatives);
|
|
cond = JUMP(SLJIT_JUMP);
|
|
set_jumps(CURRENT_AS(bracket_backtrack)->u.condfailed, LABEL());
|
|
}
|
|
else
|
|
SLJIT_ASSERT(!has_alternatives);
|
|
}
|
|
|
|
if (has_alternatives)
|
|
{
|
|
alt_count = sizeof(sljit_uw);
|
|
do
|
|
{
|
|
current->top = NULL;
|
|
current->topbacktracks = NULL;
|
|
current->nextbacktracks = NULL;
|
|
/* Conditional blocks always have an additional alternative, even if it is empty. */
|
|
if (*cc == OP_ALT)
|
|
{
|
|
ccprev = cc + 1 + LINK_SIZE;
|
|
cc += GET(cc, 1);
|
|
if (opcode != OP_COND && opcode != OP_SCOND)
|
|
{
|
|
if (opcode != OP_ONCE)
|
|
{
|
|
if (private_data_ptr != 0)
|
|
OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_MEM1(SLJIT_SP), private_data_ptr);
|
|
else
|
|
OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_MEM1(STACK_TOP), STACK(0));
|
|
}
|
|
else
|
|
OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_MEM1(STACK_TOP), STACK(needs_control_head ? 1 : 0));
|
|
}
|
|
compile_matchingpath(common, ccprev, cc, current);
|
|
if (SLJIT_UNLIKELY(sljit_get_compiler_error(compiler)))
|
|
return;
|
|
}
|
|
|
|
/* Instructions after the current alternative is successfully matched. */
|
|
/* There is a similar code in compile_bracket_matchingpath. */
|
|
if (opcode == OP_ONCE)
|
|
match_once_common(common, ket, CURRENT_AS(bracket_backtrack)->u.framesize, private_data_ptr, has_alternatives, needs_control_head);
|
|
|
|
stacksize = 0;
|
|
if (repeat_type == OP_MINUPTO)
|
|
{
|
|
/* We need to preserve the counter. TMP2 will be used below. */
|
|
OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(SLJIT_SP), repeat_ptr);
|
|
stacksize++;
|
|
}
|
|
if (ket != OP_KET || bra != OP_BRA)
|
|
stacksize++;
|
|
if (offset != 0)
|
|
{
|
|
if (common->capture_last_ptr != 0)
|
|
stacksize++;
|
|
if (common->optimized_cbracket[offset >> 1] == 0)
|
|
stacksize += 2;
|
|
}
|
|
if (opcode != OP_ONCE)
|
|
stacksize++;
|
|
|
|
if (stacksize > 0)
|
|
allocate_stack(common, stacksize);
|
|
|
|
stacksize = 0;
|
|
if (repeat_type == OP_MINUPTO)
|
|
{
|
|
/* TMP2 was set above. */
|
|
OP2(SLJIT_SUB, SLJIT_MEM1(STACK_TOP), STACK(stacksize), TMP2, 0, SLJIT_IMM, 1);
|
|
stacksize++;
|
|
}
|
|
|
|
if (ket != OP_KET || bra != OP_BRA)
|
|
{
|
|
if (ket != OP_KET)
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(stacksize), STR_PTR, 0);
|
|
else
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(stacksize), SLJIT_IMM, 0);
|
|
stacksize++;
|
|
}
|
|
|
|
if (offset != 0)
|
|
stacksize = match_capture_common(common, stacksize, offset, private_data_ptr);
|
|
|
|
if (opcode != OP_ONCE)
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(stacksize), SLJIT_IMM, alt_count);
|
|
|
|
if (offset != 0 && ket == OP_KETRMAX && common->optimized_cbracket[offset >> 1] != 0)
|
|
{
|
|
/* If ket is not OP_KETRMAX, this code path is executed after the jump to alternative_matchingpath. */
|
|
SLJIT_ASSERT(private_data_ptr == OVECTOR(offset + 0));
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), OVECTOR(offset + 1), STR_PTR, 0);
|
|
}
|
|
|
|
JUMPTO(SLJIT_JUMP, CURRENT_AS(bracket_backtrack)->alternative_matchingpath);
|
|
|
|
if (opcode != OP_ONCE)
|
|
{
|
|
if (alt_max > 4)
|
|
add_label_addr(common, next_update_addr++);
|
|
else
|
|
{
|
|
if (alt_count != 2 * sizeof(sljit_uw))
|
|
{
|
|
JUMPHERE(alt1);
|
|
if (alt_max == 3 && alt_count == sizeof(sljit_uw))
|
|
alt2 = CMP(SLJIT_GREATER_EQUAL, TMP1, 0, SLJIT_IMM, 2 * sizeof(sljit_uw));
|
|
}
|
|
else
|
|
{
|
|
JUMPHERE(alt2);
|
|
if (alt_max == 4)
|
|
alt1 = CMP(SLJIT_GREATER_EQUAL, TMP1, 0, SLJIT_IMM, 3 * sizeof(sljit_uw));
|
|
}
|
|
}
|
|
alt_count += sizeof(sljit_uw);
|
|
}
|
|
|
|
COMPILE_BACKTRACKINGPATH(current->top);
|
|
if (current->topbacktracks)
|
|
set_jumps(current->topbacktracks, LABEL());
|
|
SLJIT_ASSERT(!current->nextbacktracks);
|
|
}
|
|
while (*cc == OP_ALT);
|
|
|
|
if (cond != NULL)
|
|
{
|
|
SLJIT_ASSERT(opcode == OP_COND || opcode == OP_SCOND);
|
|
assert = CURRENT_AS(bracket_backtrack)->u.assert;
|
|
if ((ccbegin[1 + LINK_SIZE] == OP_ASSERT_NOT || ccbegin[1 + LINK_SIZE] == OP_ASSERTBACK_NOT) && assert->framesize >= 0)
|
|
{
|
|
OP1(SLJIT_MOV, STACK_TOP, 0, SLJIT_MEM1(SLJIT_SP), assert->private_data_ptr);
|
|
add_jump(compiler, &common->revertframes, JUMP(SLJIT_FAST_CALL));
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), assert->private_data_ptr, SLJIT_MEM1(STACK_TOP), assert->framesize * sizeof(sljit_sw));
|
|
}
|
|
JUMPHERE(cond);
|
|
}
|
|
|
|
/* Free the STR_PTR. */
|
|
if (private_data_ptr == 0)
|
|
free_stack(common, 1);
|
|
}
|
|
|
|
if (offset != 0)
|
|
{
|
|
/* Using both tmp register is better for instruction scheduling. */
|
|
if (common->optimized_cbracket[offset >> 1] != 0)
|
|
{
|
|
OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(STACK_TOP), STACK(0));
|
|
OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(STACK_TOP), STACK(1));
|
|
free_stack(common, 2);
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), OVECTOR(offset), TMP1, 0);
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), OVECTOR(offset + 1), TMP2, 0);
|
|
}
|
|
else
|
|
{
|
|
OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(STACK_TOP), STACK(0));
|
|
free_stack(common, 1);
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), private_data_ptr, TMP1, 0);
|
|
}
|
|
}
|
|
else if (opcode == OP_SBRA || opcode == OP_SCOND)
|
|
{
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), private_data_ptr, SLJIT_MEM1(STACK_TOP), STACK(0));
|
|
free_stack(common, 1);
|
|
}
|
|
else if (opcode == OP_ONCE)
|
|
{
|
|
cc = ccbegin + GET(ccbegin, 1);
|
|
stacksize = needs_control_head ? 1 : 0;
|
|
|
|
if (CURRENT_AS(bracket_backtrack)->u.framesize >= 0)
|
|
{
|
|
/* Reset head and drop saved frame. */
|
|
stacksize += CURRENT_AS(bracket_backtrack)->u.framesize + ((ket != OP_KET || *cc == OP_ALT) ? 2 : 1);
|
|
}
|
|
else if (ket == OP_KETRMAX || (*cc == OP_ALT && ket != OP_KETRMIN))
|
|
{
|
|
/* The STR_PTR must be released. */
|
|
stacksize++;
|
|
}
|
|
|
|
if (stacksize > 0)
|
|
free_stack(common, stacksize);
|
|
|
|
JUMPHERE(once);
|
|
/* Restore previous private_data_ptr */
|
|
if (CURRENT_AS(bracket_backtrack)->u.framesize >= 0)
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), private_data_ptr, SLJIT_MEM1(STACK_TOP), CURRENT_AS(bracket_backtrack)->u.framesize * sizeof(sljit_sw));
|
|
else if (ket == OP_KETRMIN)
|
|
{
|
|
OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(STACK_TOP), STACK(1));
|
|
/* See the comment below. */
|
|
free_stack(common, 2);
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), private_data_ptr, TMP1, 0);
|
|
}
|
|
}
|
|
|
|
if (repeat_type == OP_EXACT)
|
|
{
|
|
OP2(SLJIT_ADD, TMP1, 0, SLJIT_MEM1(SLJIT_SP), repeat_ptr, SLJIT_IMM, 1);
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), repeat_ptr, TMP1, 0);
|
|
CMPTO(SLJIT_LESS_EQUAL, TMP1, 0, SLJIT_IMM, repeat_count, exact_label);
|
|
}
|
|
else if (ket == OP_KETRMAX)
|
|
{
|
|
OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_MEM1(STACK_TOP), STACK(0));
|
|
if (bra != OP_BRAZERO)
|
|
free_stack(common, 1);
|
|
|
|
CMPTO(SLJIT_NOT_EQUAL, STR_PTR, 0, SLJIT_IMM, 0, CURRENT_AS(bracket_backtrack)->recursive_matchingpath);
|
|
if (bra == OP_BRAZERO)
|
|
{
|
|
OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_MEM1(STACK_TOP), STACK(1));
|
|
JUMPTO(SLJIT_JUMP, CURRENT_AS(bracket_backtrack)->zero_matchingpath);
|
|
JUMPHERE(brazero);
|
|
free_stack(common, 1);
|
|
}
|
|
}
|
|
else if (ket == OP_KETRMIN)
|
|
{
|
|
OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(STACK_TOP), STACK(0));
|
|
|
|
/* OP_ONCE removes everything in case of a backtrack, so we don't
|
|
need to explicitly release the STR_PTR. The extra release would
|
|
affect badly the free_stack(2) above. */
|
|
if (opcode != OP_ONCE)
|
|
free_stack(common, 1);
|
|
CMPTO(SLJIT_NOT_EQUAL, TMP1, 0, SLJIT_IMM, 0, rmin_label);
|
|
if (opcode == OP_ONCE)
|
|
free_stack(common, bra == OP_BRAMINZERO ? 2 : 1);
|
|
else if (bra == OP_BRAMINZERO)
|
|
free_stack(common, 1);
|
|
}
|
|
else if (bra == OP_BRAZERO)
|
|
{
|
|
OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_MEM1(STACK_TOP), STACK(0));
|
|
JUMPTO(SLJIT_JUMP, CURRENT_AS(bracket_backtrack)->zero_matchingpath);
|
|
JUMPHERE(brazero);
|
|
}
|
|
}
|
|
|
|
static SLJIT_INLINE void compile_bracketpos_backtrackingpath(compiler_common *common, struct backtrack_common *current)
|
|
{
|
|
DEFINE_COMPILER;
|
|
int offset;
|
|
struct sljit_jump *jump;
|
|
|
|
if (CURRENT_AS(bracketpos_backtrack)->framesize < 0)
|
|
{
|
|
if (*current->cc == OP_CBRAPOS || *current->cc == OP_SCBRAPOS)
|
|
{
|
|
offset = (GET2(current->cc, 1 + LINK_SIZE)) << 1;
|
|
OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(STACK_TOP), STACK(0));
|
|
OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(STACK_TOP), STACK(1));
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), OVECTOR(offset), TMP1, 0);
|
|
if (common->capture_last_ptr != 0)
|
|
OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(STACK_TOP), STACK(2));
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), OVECTOR(offset + 1), TMP2, 0);
|
|
if (common->capture_last_ptr != 0)
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), common->capture_last_ptr, TMP1, 0);
|
|
}
|
|
set_jumps(current->topbacktracks, LABEL());
|
|
free_stack(common, CURRENT_AS(bracketpos_backtrack)->stacksize);
|
|
return;
|
|
}
|
|
|
|
OP1(SLJIT_MOV, STACK_TOP, 0, SLJIT_MEM1(SLJIT_SP), CURRENT_AS(bracketpos_backtrack)->private_data_ptr);
|
|
add_jump(compiler, &common->revertframes, JUMP(SLJIT_FAST_CALL));
|
|
|
|
if (current->topbacktracks)
|
|
{
|
|
jump = JUMP(SLJIT_JUMP);
|
|
set_jumps(current->topbacktracks, LABEL());
|
|
/* Drop the stack frame. */
|
|
free_stack(common, CURRENT_AS(bracketpos_backtrack)->stacksize);
|
|
JUMPHERE(jump);
|
|
}
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), CURRENT_AS(bracketpos_backtrack)->private_data_ptr, SLJIT_MEM1(STACK_TOP), CURRENT_AS(bracketpos_backtrack)->framesize * sizeof(sljit_sw));
|
|
}
|
|
|
|
static SLJIT_INLINE void compile_braminzero_backtrackingpath(compiler_common *common, struct backtrack_common *current)
|
|
{
|
|
assert_backtrack backtrack;
|
|
|
|
current->top = NULL;
|
|
current->topbacktracks = NULL;
|
|
current->nextbacktracks = NULL;
|
|
if (current->cc[1] > OP_ASSERTBACK_NOT)
|
|
{
|
|
/* Manual call of compile_bracket_matchingpath and compile_bracket_backtrackingpath. */
|
|
compile_bracket_matchingpath(common, current->cc, current);
|
|
compile_bracket_backtrackingpath(common, current->top);
|
|
}
|
|
else
|
|
{
|
|
memset(&backtrack, 0, sizeof(backtrack));
|
|
backtrack.common.cc = current->cc;
|
|
backtrack.matchingpath = CURRENT_AS(braminzero_backtrack)->matchingpath;
|
|
/* Manual call of compile_assert_matchingpath. */
|
|
compile_assert_matchingpath(common, current->cc, &backtrack, FALSE);
|
|
}
|
|
SLJIT_ASSERT(!current->nextbacktracks && !current->topbacktracks);
|
|
}
|
|
|
|
static SLJIT_INLINE void compile_control_verb_backtrackingpath(compiler_common *common, struct backtrack_common *current)
|
|
{
|
|
DEFINE_COMPILER;
|
|
PCRE2_UCHAR opcode = *current->cc;
|
|
struct sljit_label *loop;
|
|
struct sljit_jump *jump;
|
|
|
|
if (opcode == OP_THEN || opcode == OP_THEN_ARG)
|
|
{
|
|
if (common->then_trap != NULL)
|
|
{
|
|
SLJIT_ASSERT(common->control_head_ptr != 0);
|
|
|
|
OP1(SLJIT_MOV, STACK_TOP, 0, SLJIT_MEM1(SLJIT_SP), common->control_head_ptr);
|
|
OP1(SLJIT_MOV, TMP1, 0, SLJIT_IMM, type_then_trap);
|
|
OP1(SLJIT_MOV, TMP2, 0, SLJIT_IMM, common->then_trap->start);
|
|
jump = JUMP(SLJIT_JUMP);
|
|
|
|
loop = LABEL();
|
|
OP1(SLJIT_MOV, STACK_TOP, 0, SLJIT_MEM1(STACK_TOP), -(int)sizeof(sljit_sw));
|
|
JUMPHERE(jump);
|
|
CMPTO(SLJIT_NOT_EQUAL, SLJIT_MEM1(STACK_TOP), -(int)(2 * sizeof(sljit_sw)), TMP1, 0, loop);
|
|
CMPTO(SLJIT_NOT_EQUAL, SLJIT_MEM1(STACK_TOP), -(int)(3 * sizeof(sljit_sw)), TMP2, 0, loop);
|
|
add_jump(compiler, &common->then_trap->quit, JUMP(SLJIT_JUMP));
|
|
return;
|
|
}
|
|
else if (common->positive_assert)
|
|
{
|
|
add_jump(compiler, &common->positive_assert_quit, JUMP(SLJIT_JUMP));
|
|
return;
|
|
}
|
|
}
|
|
|
|
if (common->local_exit)
|
|
{
|
|
if (common->quit_label == NULL)
|
|
add_jump(compiler, &common->quit, JUMP(SLJIT_JUMP));
|
|
else
|
|
JUMPTO(SLJIT_JUMP, common->quit_label);
|
|
return;
|
|
}
|
|
|
|
if (opcode == OP_SKIP_ARG)
|
|
{
|
|
SLJIT_ASSERT(common->control_head_ptr != 0);
|
|
OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_SP), common->control_head_ptr);
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), LOCALS0, STACK_TOP, 0);
|
|
OP1(SLJIT_MOV, STACK_TOP, 0, SLJIT_IMM, (sljit_sw)(current->cc + 2));
|
|
sljit_emit_ijump(compiler, SLJIT_CALL2, SLJIT_IMM, SLJIT_FUNC_OFFSET(do_search_mark));
|
|
OP1(SLJIT_MOV, STACK_TOP, 0, SLJIT_MEM1(SLJIT_SP), LOCALS0);
|
|
|
|
OP1(SLJIT_MOV, STR_PTR, 0, TMP1, 0);
|
|
add_jump(compiler, &common->reset_match, CMP(SLJIT_NOT_EQUAL, STR_PTR, 0, SLJIT_IMM, -1));
|
|
return;
|
|
}
|
|
|
|
if (opcode == OP_SKIP)
|
|
OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_MEM1(STACK_TOP), STACK(0));
|
|
else
|
|
OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_IMM, 0);
|
|
add_jump(compiler, &common->reset_match, JUMP(SLJIT_JUMP));
|
|
}
|
|
|
|
static SLJIT_INLINE void compile_then_trap_backtrackingpath(compiler_common *common, struct backtrack_common *current)
|
|
{
|
|
DEFINE_COMPILER;
|
|
struct sljit_jump *jump;
|
|
int size;
|
|
|
|
if (CURRENT_AS(then_trap_backtrack)->then_trap)
|
|
{
|
|
common->then_trap = CURRENT_AS(then_trap_backtrack)->then_trap;
|
|
return;
|
|
}
|
|
|
|
size = CURRENT_AS(then_trap_backtrack)->framesize;
|
|
size = 3 + (size < 0 ? 0 : size);
|
|
|
|
OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(STACK_TOP), STACK(size - 3));
|
|
free_stack(common, size);
|
|
jump = JUMP(SLJIT_JUMP);
|
|
|
|
set_jumps(CURRENT_AS(then_trap_backtrack)->quit, LABEL());
|
|
/* STACK_TOP is set by THEN. */
|
|
if (CURRENT_AS(then_trap_backtrack)->framesize >= 0)
|
|
add_jump(compiler, &common->revertframes, JUMP(SLJIT_FAST_CALL));
|
|
OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(STACK_TOP), STACK(0));
|
|
free_stack(common, 3);
|
|
|
|
JUMPHERE(jump);
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), common->control_head_ptr, TMP1, 0);
|
|
}
|
|
|
|
static void compile_backtrackingpath(compiler_common *common, struct backtrack_common *current)
|
|
{
|
|
DEFINE_COMPILER;
|
|
then_trap_backtrack *save_then_trap = common->then_trap;
|
|
|
|
while (current)
|
|
{
|
|
if (current->nextbacktracks != NULL)
|
|
set_jumps(current->nextbacktracks, LABEL());
|
|
switch(*current->cc)
|
|
{
|
|
case OP_SET_SOM:
|
|
OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(STACK_TOP), STACK(0));
|
|
free_stack(common, 1);
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), OVECTOR(0), TMP1, 0);
|
|
break;
|
|
|
|
case OP_STAR:
|
|
case OP_MINSTAR:
|
|
case OP_PLUS:
|
|
case OP_MINPLUS:
|
|
case OP_QUERY:
|
|
case OP_MINQUERY:
|
|
case OP_UPTO:
|
|
case OP_MINUPTO:
|
|
case OP_EXACT:
|
|
case OP_POSSTAR:
|
|
case OP_POSPLUS:
|
|
case OP_POSQUERY:
|
|
case OP_POSUPTO:
|
|
case OP_STARI:
|
|
case OP_MINSTARI:
|
|
case OP_PLUSI:
|
|
case OP_MINPLUSI:
|
|
case OP_QUERYI:
|
|
case OP_MINQUERYI:
|
|
case OP_UPTOI:
|
|
case OP_MINUPTOI:
|
|
case OP_EXACTI:
|
|
case OP_POSSTARI:
|
|
case OP_POSPLUSI:
|
|
case OP_POSQUERYI:
|
|
case OP_POSUPTOI:
|
|
case OP_NOTSTAR:
|
|
case OP_NOTMINSTAR:
|
|
case OP_NOTPLUS:
|
|
case OP_NOTMINPLUS:
|
|
case OP_NOTQUERY:
|
|
case OP_NOTMINQUERY:
|
|
case OP_NOTUPTO:
|
|
case OP_NOTMINUPTO:
|
|
case OP_NOTEXACT:
|
|
case OP_NOTPOSSTAR:
|
|
case OP_NOTPOSPLUS:
|
|
case OP_NOTPOSQUERY:
|
|
case OP_NOTPOSUPTO:
|
|
case OP_NOTSTARI:
|
|
case OP_NOTMINSTARI:
|
|
case OP_NOTPLUSI:
|
|
case OP_NOTMINPLUSI:
|
|
case OP_NOTQUERYI:
|
|
case OP_NOTMINQUERYI:
|
|
case OP_NOTUPTOI:
|
|
case OP_NOTMINUPTOI:
|
|
case OP_NOTEXACTI:
|
|
case OP_NOTPOSSTARI:
|
|
case OP_NOTPOSPLUSI:
|
|
case OP_NOTPOSQUERYI:
|
|
case OP_NOTPOSUPTOI:
|
|
case OP_TYPESTAR:
|
|
case OP_TYPEMINSTAR:
|
|
case OP_TYPEPLUS:
|
|
case OP_TYPEMINPLUS:
|
|
case OP_TYPEQUERY:
|
|
case OP_TYPEMINQUERY:
|
|
case OP_TYPEUPTO:
|
|
case OP_TYPEMINUPTO:
|
|
case OP_TYPEEXACT:
|
|
case OP_TYPEPOSSTAR:
|
|
case OP_TYPEPOSPLUS:
|
|
case OP_TYPEPOSQUERY:
|
|
case OP_TYPEPOSUPTO:
|
|
case OP_CLASS:
|
|
case OP_NCLASS:
|
|
#if defined SUPPORT_UNICODE || PCRE2_CODE_UNIT_WIDTH != 8
|
|
case OP_XCLASS:
|
|
#endif
|
|
compile_iterator_backtrackingpath(common, current);
|
|
break;
|
|
|
|
case OP_REF:
|
|
case OP_REFI:
|
|
case OP_DNREF:
|
|
case OP_DNREFI:
|
|
compile_ref_iterator_backtrackingpath(common, current);
|
|
break;
|
|
|
|
case OP_RECURSE:
|
|
compile_recurse_backtrackingpath(common, current);
|
|
break;
|
|
|
|
case OP_ASSERT:
|
|
case OP_ASSERT_NOT:
|
|
case OP_ASSERTBACK:
|
|
case OP_ASSERTBACK_NOT:
|
|
compile_assert_backtrackingpath(common, current);
|
|
break;
|
|
|
|
case OP_ONCE:
|
|
case OP_ONCE_NC:
|
|
case OP_BRA:
|
|
case OP_CBRA:
|
|
case OP_COND:
|
|
case OP_SBRA:
|
|
case OP_SCBRA:
|
|
case OP_SCOND:
|
|
compile_bracket_backtrackingpath(common, current);
|
|
break;
|
|
|
|
case OP_BRAZERO:
|
|
if (current->cc[1] > OP_ASSERTBACK_NOT)
|
|
compile_bracket_backtrackingpath(common, current);
|
|
else
|
|
compile_assert_backtrackingpath(common, current);
|
|
break;
|
|
|
|
case OP_BRAPOS:
|
|
case OP_CBRAPOS:
|
|
case OP_SBRAPOS:
|
|
case OP_SCBRAPOS:
|
|
case OP_BRAPOSZERO:
|
|
compile_bracketpos_backtrackingpath(common, current);
|
|
break;
|
|
|
|
case OP_BRAMINZERO:
|
|
compile_braminzero_backtrackingpath(common, current);
|
|
break;
|
|
|
|
case OP_MARK:
|
|
OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(STACK_TOP), STACK(common->has_skip_arg ? 4 : 0));
|
|
if (common->has_skip_arg)
|
|
OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(STACK_TOP), STACK(0));
|
|
free_stack(common, common->has_skip_arg ? 5 : 1);
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), common->mark_ptr, TMP1, 0);
|
|
if (common->has_skip_arg)
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), common->control_head_ptr, TMP2, 0);
|
|
break;
|
|
|
|
case OP_THEN:
|
|
case OP_THEN_ARG:
|
|
case OP_PRUNE:
|
|
case OP_PRUNE_ARG:
|
|
case OP_SKIP:
|
|
case OP_SKIP_ARG:
|
|
compile_control_verb_backtrackingpath(common, current);
|
|
break;
|
|
|
|
case OP_COMMIT:
|
|
if (!common->local_exit)
|
|
OP1(SLJIT_MOV, SLJIT_RETURN_REG, 0, SLJIT_IMM, PCRE2_ERROR_NOMATCH);
|
|
if (common->quit_label == NULL)
|
|
add_jump(compiler, &common->quit, JUMP(SLJIT_JUMP));
|
|
else
|
|
JUMPTO(SLJIT_JUMP, common->quit_label);
|
|
break;
|
|
|
|
case OP_CALLOUT:
|
|
case OP_CALLOUT_STR:
|
|
case OP_FAIL:
|
|
case OP_ACCEPT:
|
|
case OP_ASSERT_ACCEPT:
|
|
set_jumps(current->topbacktracks, LABEL());
|
|
break;
|
|
|
|
case OP_THEN_TRAP:
|
|
/* A virtual opcode for then traps. */
|
|
compile_then_trap_backtrackingpath(common, current);
|
|
break;
|
|
|
|
default:
|
|
SLJIT_ASSERT_STOP();
|
|
break;
|
|
}
|
|
current = current->prev;
|
|
}
|
|
common->then_trap = save_then_trap;
|
|
}
|
|
|
|
static SLJIT_INLINE void compile_recurse(compiler_common *common)
|
|
{
|
|
DEFINE_COMPILER;
|
|
PCRE2_SPTR cc = common->start + common->currententry->start;
|
|
PCRE2_SPTR ccbegin = cc + 1 + LINK_SIZE + (*cc == OP_BRA ? 0 : IMM2_SIZE);
|
|
PCRE2_SPTR ccend = bracketend(cc) - (1 + LINK_SIZE);
|
|
BOOL needs_control_head;
|
|
int framesize = get_framesize(common, cc, NULL, TRUE, &needs_control_head);
|
|
int private_data_size = get_private_data_copy_length(common, ccbegin, ccend, needs_control_head);
|
|
int alternativesize;
|
|
BOOL needs_frame;
|
|
backtrack_common altbacktrack;
|
|
struct sljit_jump *jump;
|
|
|
|
/* Recurse captures then. */
|
|
common->then_trap = NULL;
|
|
|
|
SLJIT_ASSERT(*cc == OP_BRA || *cc == OP_CBRA || *cc == OP_CBRAPOS || *cc == OP_SCBRA || *cc == OP_SCBRAPOS);
|
|
needs_frame = framesize >= 0;
|
|
if (!needs_frame)
|
|
framesize = 0;
|
|
alternativesize = *(cc + GET(cc, 1)) == OP_ALT ? 1 : 0;
|
|
|
|
SLJIT_ASSERT(common->currententry->entry == NULL && common->recursive_head_ptr != 0);
|
|
common->currententry->entry = LABEL();
|
|
set_jumps(common->currententry->calls, common->currententry->entry);
|
|
|
|
sljit_emit_fast_enter(compiler, TMP2, 0);
|
|
count_match(common);
|
|
allocate_stack(common, private_data_size + framesize + alternativesize);
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(private_data_size + framesize + alternativesize - 1), TMP2, 0);
|
|
copy_private_data(common, ccbegin, ccend, TRUE, private_data_size + framesize + alternativesize, framesize + alternativesize, needs_control_head);
|
|
if (needs_control_head)
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), common->control_head_ptr, SLJIT_IMM, 0);
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), common->recursive_head_ptr, STACK_TOP, 0);
|
|
if (needs_frame)
|
|
init_frame(common, cc, NULL, framesize + alternativesize - 1, alternativesize, TRUE);
|
|
|
|
if (alternativesize > 0)
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), STR_PTR, 0);
|
|
|
|
memset(&altbacktrack, 0, sizeof(backtrack_common));
|
|
common->quit_label = NULL;
|
|
common->accept_label = NULL;
|
|
common->quit = NULL;
|
|
common->accept = NULL;
|
|
altbacktrack.cc = ccbegin;
|
|
cc += GET(cc, 1);
|
|
while (1)
|
|
{
|
|
altbacktrack.top = NULL;
|
|
altbacktrack.topbacktracks = NULL;
|
|
|
|
if (altbacktrack.cc != ccbegin)
|
|
OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_MEM1(STACK_TOP), STACK(0));
|
|
|
|
compile_matchingpath(common, altbacktrack.cc, cc, &altbacktrack);
|
|
if (SLJIT_UNLIKELY(sljit_get_compiler_error(compiler)))
|
|
return;
|
|
|
|
add_jump(compiler, &common->accept, JUMP(SLJIT_JUMP));
|
|
|
|
compile_backtrackingpath(common, altbacktrack.top);
|
|
if (SLJIT_UNLIKELY(sljit_get_compiler_error(compiler)))
|
|
return;
|
|
set_jumps(altbacktrack.topbacktracks, LABEL());
|
|
|
|
if (*cc != OP_ALT)
|
|
break;
|
|
|
|
altbacktrack.cc = cc + 1 + LINK_SIZE;
|
|
cc += GET(cc, 1);
|
|
}
|
|
|
|
/* None of them matched. */
|
|
OP1(SLJIT_MOV, TMP3, 0, SLJIT_IMM, 0);
|
|
jump = JUMP(SLJIT_JUMP);
|
|
|
|
if (common->quit != NULL)
|
|
{
|
|
set_jumps(common->quit, LABEL());
|
|
OP1(SLJIT_MOV, STACK_TOP, 0, SLJIT_MEM1(SLJIT_SP), common->recursive_head_ptr);
|
|
if (needs_frame)
|
|
{
|
|
OP2(SLJIT_SUB, STACK_TOP, 0, STACK_TOP, 0, SLJIT_IMM, (framesize + alternativesize) * sizeof(sljit_sw));
|
|
add_jump(compiler, &common->revertframes, JUMP(SLJIT_FAST_CALL));
|
|
OP2(SLJIT_ADD, STACK_TOP, 0, STACK_TOP, 0, SLJIT_IMM, (framesize + alternativesize) * sizeof(sljit_sw));
|
|
}
|
|
OP1(SLJIT_MOV, TMP3, 0, SLJIT_IMM, 0);
|
|
common->quit = NULL;
|
|
add_jump(compiler, &common->quit, JUMP(SLJIT_JUMP));
|
|
}
|
|
|
|
set_jumps(common->accept, LABEL());
|
|
OP1(SLJIT_MOV, STACK_TOP, 0, SLJIT_MEM1(SLJIT_SP), common->recursive_head_ptr);
|
|
if (needs_frame)
|
|
{
|
|
OP2(SLJIT_SUB, STACK_TOP, 0, STACK_TOP, 0, SLJIT_IMM, (framesize + alternativesize) * sizeof(sljit_sw));
|
|
add_jump(compiler, &common->revertframes, JUMP(SLJIT_FAST_CALL));
|
|
OP2(SLJIT_ADD, STACK_TOP, 0, STACK_TOP, 0, SLJIT_IMM, (framesize + alternativesize) * sizeof(sljit_sw));
|
|
}
|
|
OP1(SLJIT_MOV, TMP3, 0, SLJIT_IMM, 1);
|
|
|
|
JUMPHERE(jump);
|
|
if (common->quit != NULL)
|
|
set_jumps(common->quit, LABEL());
|
|
copy_private_data(common, ccbegin, ccend, FALSE, private_data_size + framesize + alternativesize, framesize + alternativesize, needs_control_head);
|
|
free_stack(common, private_data_size + framesize + alternativesize);
|
|
if (needs_control_head)
|
|
{
|
|
OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(STACK_TOP), 2 * sizeof(sljit_sw));
|
|
OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(STACK_TOP), sizeof(sljit_sw));
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), common->recursive_head_ptr, TMP1, 0);
|
|
OP1(SLJIT_MOV, TMP1, 0, TMP3, 0);
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), common->control_head_ptr, TMP2, 0);
|
|
}
|
|
else
|
|
{
|
|
OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(STACK_TOP), sizeof(sljit_sw));
|
|
OP1(SLJIT_MOV, TMP1, 0, TMP3, 0);
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), common->recursive_head_ptr, TMP2, 0);
|
|
}
|
|
sljit_emit_fast_return(compiler, SLJIT_MEM1(STACK_TOP), 0);
|
|
}
|
|
|
|
#undef COMPILE_BACKTRACKINGPATH
|
|
#undef CURRENT_AS
|
|
|
|
static int jit_compile(pcre2_code *code, sljit_u32 mode)
|
|
{
|
|
pcre2_real_code *re = (pcre2_real_code *)code;
|
|
struct sljit_compiler *compiler;
|
|
backtrack_common rootbacktrack;
|
|
compiler_common common_data;
|
|
compiler_common *common = &common_data;
|
|
const sljit_u8 *tables = re->tables;
|
|
void *allocator_data = &re->memctl;
|
|
int private_data_size;
|
|
PCRE2_SPTR ccend;
|
|
executable_functions *functions;
|
|
void *executable_func;
|
|
sljit_uw executable_size;
|
|
sljit_uw total_length;
|
|
label_addr_list *label_addr;
|
|
struct sljit_label *mainloop_label = NULL;
|
|
struct sljit_label *continue_match_label;
|
|
struct sljit_label *empty_match_found_label = NULL;
|
|
struct sljit_label *empty_match_backtrack_label = NULL;
|
|
struct sljit_label *reset_match_label;
|
|
struct sljit_label *quit_label;
|
|
struct sljit_jump *jump;
|
|
struct sljit_jump *minlength_check_failed = NULL;
|
|
struct sljit_jump *reqbyte_notfound = NULL;
|
|
struct sljit_jump *empty_match = NULL;
|
|
|
|
SLJIT_ASSERT(tables);
|
|
|
|
memset(&rootbacktrack, 0, sizeof(backtrack_common));
|
|
memset(common, 0, sizeof(compiler_common));
|
|
common->name_table = (PCRE2_SPTR)((uint8_t *)re + sizeof(pcre2_real_code));
|
|
rootbacktrack.cc = common->name_table + re->name_count * re->name_entry_size;
|
|
|
|
common->start = rootbacktrack.cc;
|
|
common->read_only_data_head = NULL;
|
|
common->fcc = tables + fcc_offset;
|
|
common->lcc = (sljit_sw)(tables + lcc_offset);
|
|
common->mode = mode;
|
|
common->might_be_empty = re->minlength == 0;
|
|
common->nltype = NLTYPE_FIXED;
|
|
switch(re->newline_convention)
|
|
{
|
|
case PCRE2_NEWLINE_CR: common->newline = CHAR_CR; break;
|
|
case PCRE2_NEWLINE_LF: common->newline = CHAR_NL; break;
|
|
case PCRE2_NEWLINE_CRLF: common->newline = (CHAR_CR << 8) | CHAR_NL; break;
|
|
case PCRE2_NEWLINE_ANY: common->newline = (CHAR_CR << 8) | CHAR_NL; common->nltype = NLTYPE_ANY; break;
|
|
case PCRE2_NEWLINE_ANYCRLF: common->newline = (CHAR_CR << 8) | CHAR_NL; common->nltype = NLTYPE_ANYCRLF; break;
|
|
default: return PCRE2_ERROR_INTERNAL;
|
|
}
|
|
common->nlmax = READ_CHAR_MAX;
|
|
common->nlmin = 0;
|
|
if (re->bsr_convention == PCRE2_BSR_UNICODE)
|
|
common->bsr_nltype = NLTYPE_ANY;
|
|
else if (re->bsr_convention == PCRE2_BSR_ANYCRLF)
|
|
common->bsr_nltype = NLTYPE_ANYCRLF;
|
|
else
|
|
{
|
|
#ifdef BSR_ANYCRLF
|
|
common->bsr_nltype = NLTYPE_ANYCRLF;
|
|
#else
|
|
common->bsr_nltype = NLTYPE_ANY;
|
|
#endif
|
|
}
|
|
common->bsr_nlmax = READ_CHAR_MAX;
|
|
common->bsr_nlmin = 0;
|
|
common->endonly = (re->overall_options & PCRE2_DOLLAR_ENDONLY) != 0;
|
|
common->ctypes = (sljit_sw)(tables + ctypes_offset);
|
|
common->name_count = re->name_count;
|
|
common->name_entry_size = re->name_entry_size;
|
|
common->unset_backref = (re->overall_options & PCRE2_MATCH_UNSET_BACKREF) != 0;
|
|
common->alt_circumflex = (re->overall_options & PCRE2_ALT_CIRCUMFLEX) != 0;
|
|
#ifdef SUPPORT_UNICODE
|
|
/* PCRE_UTF[16|32] have the same value as PCRE_UTF8. */
|
|
common->utf = (re->overall_options & PCRE2_UTF) != 0;
|
|
common->use_ucp = (re->overall_options & PCRE2_UCP) != 0;
|
|
if (common->utf)
|
|
{
|
|
if (common->nltype == NLTYPE_ANY)
|
|
common->nlmax = 0x2029;
|
|
else if (common->nltype == NLTYPE_ANYCRLF)
|
|
common->nlmax = (CHAR_CR > CHAR_NL) ? CHAR_CR : CHAR_NL;
|
|
else
|
|
{
|
|
/* We only care about the first newline character. */
|
|
common->nlmax = common->newline & 0xff;
|
|
}
|
|
|
|
if (common->nltype == NLTYPE_FIXED)
|
|
common->nlmin = common->newline & 0xff;
|
|
else
|
|
common->nlmin = (CHAR_CR < CHAR_NL) ? CHAR_CR : CHAR_NL;
|
|
|
|
if (common->bsr_nltype == NLTYPE_ANY)
|
|
common->bsr_nlmax = 0x2029;
|
|
else
|
|
common->bsr_nlmax = (CHAR_CR > CHAR_NL) ? CHAR_CR : CHAR_NL;
|
|
common->bsr_nlmin = (CHAR_CR < CHAR_NL) ? CHAR_CR : CHAR_NL;
|
|
}
|
|
#endif /* SUPPORT_UNICODE */
|
|
ccend = bracketend(common->start);
|
|
|
|
/* Calculate the local space size on the stack. */
|
|
common->ovector_start = LIMIT_MATCH + sizeof(sljit_sw);
|
|
common->optimized_cbracket = (sljit_u8 *)SLJIT_MALLOC(re->top_bracket + 1, allocator_data);
|
|
if (!common->optimized_cbracket)
|
|
return PCRE2_ERROR_NOMEMORY;
|
|
#if defined DEBUG_FORCE_UNOPTIMIZED_CBRAS && DEBUG_FORCE_UNOPTIMIZED_CBRAS == 1
|
|
memset(common->optimized_cbracket, 0, re->top_bracket + 1);
|
|
#else
|
|
memset(common->optimized_cbracket, 1, re->top_bracket + 1);
|
|
#endif
|
|
|
|
SLJIT_ASSERT(*common->start == OP_BRA && ccend[-(1 + LINK_SIZE)] == OP_KET);
|
|
#if defined DEBUG_FORCE_UNOPTIMIZED_CBRAS && DEBUG_FORCE_UNOPTIMIZED_CBRAS == 2
|
|
common->capture_last_ptr = common->ovector_start;
|
|
common->ovector_start += sizeof(sljit_sw);
|
|
#endif
|
|
if (!check_opcode_types(common, common->start, ccend))
|
|
{
|
|
SLJIT_FREE(common->optimized_cbracket, allocator_data);
|
|
return PCRE2_ERROR_NOMEMORY;
|
|
}
|
|
|
|
/* Checking flags and updating ovector_start. */
|
|
if (mode == PCRE2_JIT_COMPLETE && (re->flags & PCRE2_LASTSET) != 0 && (re->overall_options & PCRE2_NO_START_OPTIMIZE) == 0)
|
|
{
|
|
common->req_char_ptr = common->ovector_start;
|
|
common->ovector_start += sizeof(sljit_sw);
|
|
}
|
|
if (mode != PCRE2_JIT_COMPLETE)
|
|
{
|
|
common->start_used_ptr = common->ovector_start;
|
|
common->ovector_start += sizeof(sljit_sw);
|
|
if (mode == PCRE2_JIT_PARTIAL_SOFT)
|
|
{
|
|
common->hit_start = common->ovector_start;
|
|
common->ovector_start += sizeof(sljit_sw);
|
|
}
|
|
}
|
|
if ((re->overall_options & (PCRE2_FIRSTLINE | PCRE2_USE_OFFSET_LIMIT)) != 0)
|
|
{
|
|
common->match_end_ptr = common->ovector_start;
|
|
common->ovector_start += sizeof(sljit_sw);
|
|
}
|
|
#if defined DEBUG_FORCE_CONTROL_HEAD && DEBUG_FORCE_CONTROL_HEAD
|
|
common->control_head_ptr = 1;
|
|
#endif
|
|
if (common->control_head_ptr != 0)
|
|
{
|
|
common->control_head_ptr = common->ovector_start;
|
|
common->ovector_start += sizeof(sljit_sw);
|
|
}
|
|
if (common->has_set_som)
|
|
{
|
|
/* Saving the real start pointer is necessary. */
|
|
common->start_ptr = common->ovector_start;
|
|
common->ovector_start += sizeof(sljit_sw);
|
|
}
|
|
|
|
/* Aligning ovector to even number of sljit words. */
|
|
if ((common->ovector_start & sizeof(sljit_sw)) != 0)
|
|
common->ovector_start += sizeof(sljit_sw);
|
|
|
|
if (common->start_ptr == 0)
|
|
common->start_ptr = OVECTOR(0);
|
|
|
|
/* Capturing brackets cannot be optimized if callouts are allowed. */
|
|
if (common->capture_last_ptr != 0)
|
|
memset(common->optimized_cbracket, 0, re->top_bracket + 1);
|
|
|
|
SLJIT_ASSERT(!(common->req_char_ptr != 0 && common->start_used_ptr != 0));
|
|
common->cbra_ptr = OVECTOR_START + (re->top_bracket + 1) * 2 * sizeof(sljit_sw);
|
|
|
|
total_length = ccend - common->start;
|
|
common->private_data_ptrs = (sljit_s32 *)SLJIT_MALLOC(total_length * (sizeof(sljit_s32) + (common->has_then ? 1 : 0)), allocator_data);
|
|
if (!common->private_data_ptrs)
|
|
{
|
|
SLJIT_FREE(common->optimized_cbracket, allocator_data);
|
|
return PCRE2_ERROR_NOMEMORY;
|
|
}
|
|
memset(common->private_data_ptrs, 0, total_length * sizeof(sljit_s32));
|
|
|
|
private_data_size = common->cbra_ptr + (re->top_bracket + 1) * sizeof(sljit_sw);
|
|
set_private_data_ptrs(common, &private_data_size, ccend);
|
|
if ((re->overall_options & PCRE2_ANCHORED) == 0 && (re->overall_options & PCRE2_NO_START_OPTIMIZE) == 0)
|
|
{
|
|
if (!detect_fast_forward_skip(common, &private_data_size) && !common->has_skip_in_assert_back)
|
|
detect_fast_fail(common, common->start, &private_data_size, 4);
|
|
}
|
|
|
|
SLJIT_ASSERT(common->fast_fail_start_ptr <= common->fast_fail_end_ptr);
|
|
|
|
if (private_data_size > SLJIT_MAX_LOCAL_SIZE)
|
|
{
|
|
SLJIT_FREE(common->private_data_ptrs, allocator_data);
|
|
SLJIT_FREE(common->optimized_cbracket, allocator_data);
|
|
return PCRE2_ERROR_NOMEMORY;
|
|
}
|
|
|
|
if (common->has_then)
|
|
{
|
|
common->then_offsets = (sljit_u8 *)(common->private_data_ptrs + total_length);
|
|
memset(common->then_offsets, 0, total_length);
|
|
set_then_offsets(common, common->start, NULL);
|
|
}
|
|
|
|
compiler = sljit_create_compiler(allocator_data);
|
|
if (!compiler)
|
|
{
|
|
SLJIT_FREE(common->optimized_cbracket, allocator_data);
|
|
SLJIT_FREE(common->private_data_ptrs, allocator_data);
|
|
return PCRE2_ERROR_NOMEMORY;
|
|
}
|
|
common->compiler = compiler;
|
|
|
|
/* Main pcre_jit_exec entry. */
|
|
sljit_emit_enter(compiler, 0, 1, 5, 5, 0, 0, private_data_size);
|
|
|
|
/* Register init. */
|
|
reset_ovector(common, (re->top_bracket + 1) * 2);
|
|
if (common->req_char_ptr != 0)
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), common->req_char_ptr, SLJIT_R0, 0);
|
|
|
|
OP1(SLJIT_MOV, ARGUMENTS, 0, SLJIT_S0, 0);
|
|
OP1(SLJIT_MOV, TMP1, 0, SLJIT_S0, 0);
|
|
OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_MEM1(TMP1), SLJIT_OFFSETOF(jit_arguments, str));
|
|
OP1(SLJIT_MOV, STR_END, 0, SLJIT_MEM1(TMP1), SLJIT_OFFSETOF(jit_arguments, end));
|
|
OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(TMP1), SLJIT_OFFSETOF(jit_arguments, stack));
|
|
OP1(SLJIT_MOV_U32, TMP1, 0, SLJIT_MEM1(TMP1), SLJIT_OFFSETOF(jit_arguments, limit_match));
|
|
OP1(SLJIT_MOV, STACK_TOP, 0, SLJIT_MEM1(TMP2), SLJIT_OFFSETOF(struct sljit_stack, base));
|
|
OP1(SLJIT_MOV, STACK_LIMIT, 0, SLJIT_MEM1(TMP2), SLJIT_OFFSETOF(struct sljit_stack, limit));
|
|
OP2(SLJIT_ADD, TMP1, 0, TMP1, 0, SLJIT_IMM, 1);
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), LIMIT_MATCH, TMP1, 0);
|
|
|
|
if (common->fast_fail_start_ptr < common->fast_fail_end_ptr)
|
|
reset_fast_fail(common);
|
|
|
|
if (mode == PCRE2_JIT_PARTIAL_SOFT)
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), common->hit_start, SLJIT_IMM, -1);
|
|
if (common->mark_ptr != 0)
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), common->mark_ptr, SLJIT_IMM, 0);
|
|
if (common->control_head_ptr != 0)
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), common->control_head_ptr, SLJIT_IMM, 0);
|
|
|
|
/* Main part of the matching */
|
|
if ((re->overall_options & PCRE2_ANCHORED) == 0)
|
|
{
|
|
mainloop_label = mainloop_entry(common, (re->flags & PCRE2_HASCRORLF) != 0, re->overall_options);
|
|
continue_match_label = LABEL();
|
|
/* Forward search if possible. */
|
|
if ((re->overall_options & PCRE2_NO_START_OPTIMIZE) == 0)
|
|
{
|
|
if (mode == PCRE2_JIT_COMPLETE && fast_forward_first_n_chars(common))
|
|
;
|
|
else if ((re->flags & PCRE2_FIRSTSET) != 0)
|
|
fast_forward_first_char(common, (PCRE2_UCHAR)(re->first_codeunit), (re->flags & PCRE2_FIRSTCASELESS) != 0);
|
|
else if ((re->flags & PCRE2_STARTLINE) != 0)
|
|
fast_forward_newline(common);
|
|
else if ((re->flags & PCRE2_FIRSTMAPSET) != 0)
|
|
fast_forward_start_bits(common, re->start_bitmap);
|
|
}
|
|
}
|
|
else
|
|
continue_match_label = LABEL();
|
|
|
|
if (mode == PCRE2_JIT_COMPLETE && re->minlength > 0 && (re->overall_options & PCRE2_NO_START_OPTIMIZE) == 0)
|
|
{
|
|
OP1(SLJIT_MOV, SLJIT_RETURN_REG, 0, SLJIT_IMM, PCRE2_ERROR_NOMATCH);
|
|
OP2(SLJIT_ADD, TMP2, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(re->minlength));
|
|
minlength_check_failed = CMP(SLJIT_GREATER, TMP2, 0, STR_END, 0);
|
|
}
|
|
if (common->req_char_ptr != 0)
|
|
reqbyte_notfound = search_requested_char(common, (PCRE2_UCHAR)(re->last_codeunit), (re->flags & PCRE2_LASTCASELESS) != 0, (re->flags & PCRE2_FIRSTSET) != 0);
|
|
|
|
/* Store the current STR_PTR in OVECTOR(0). */
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), OVECTOR(0), STR_PTR, 0);
|
|
/* Copy the limit of allowed recursions. */
|
|
OP1(SLJIT_MOV, COUNT_MATCH, 0, SLJIT_MEM1(SLJIT_SP), LIMIT_MATCH);
|
|
if (common->capture_last_ptr != 0)
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), common->capture_last_ptr, SLJIT_IMM, 0);
|
|
if (common->fast_forward_bc_ptr != NULL)
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), PRIVATE_DATA(common->fast_forward_bc_ptr + 1), STR_PTR, 0);
|
|
|
|
if (common->start_ptr != OVECTOR(0))
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), common->start_ptr, STR_PTR, 0);
|
|
|
|
/* Copy the beginning of the string. */
|
|
if (mode == PCRE2_JIT_PARTIAL_SOFT)
|
|
{
|
|
jump = CMP(SLJIT_NOT_EQUAL, SLJIT_MEM1(SLJIT_SP), common->hit_start, SLJIT_IMM, -1);
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), common->start_used_ptr, STR_PTR, 0);
|
|
JUMPHERE(jump);
|
|
}
|
|
else if (mode == PCRE2_JIT_PARTIAL_HARD)
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), common->start_used_ptr, STR_PTR, 0);
|
|
|
|
compile_matchingpath(common, common->start, ccend, &rootbacktrack);
|
|
if (SLJIT_UNLIKELY(sljit_get_compiler_error(compiler)))
|
|
{
|
|
sljit_free_compiler(compiler);
|
|
SLJIT_FREE(common->optimized_cbracket, allocator_data);
|
|
SLJIT_FREE(common->private_data_ptrs, allocator_data);
|
|
PRIV(jit_free_rodata)(common->read_only_data_head, compiler->allocator_data);
|
|
return PCRE2_ERROR_NOMEMORY;
|
|
}
|
|
|
|
if (common->might_be_empty)
|
|
{
|
|
empty_match = CMP(SLJIT_EQUAL, STR_PTR, 0, SLJIT_MEM1(SLJIT_SP), OVECTOR(0));
|
|
empty_match_found_label = LABEL();
|
|
}
|
|
|
|
common->accept_label = LABEL();
|
|
if (common->accept != NULL)
|
|
set_jumps(common->accept, common->accept_label);
|
|
|
|
/* This means we have a match. Update the ovector. */
|
|
copy_ovector(common, re->top_bracket + 1);
|
|
common->quit_label = common->forced_quit_label = LABEL();
|
|
if (common->quit != NULL)
|
|
set_jumps(common->quit, common->quit_label);
|
|
if (common->forced_quit != NULL)
|
|
set_jumps(common->forced_quit, common->forced_quit_label);
|
|
if (minlength_check_failed != NULL)
|
|
SET_LABEL(minlength_check_failed, common->forced_quit_label);
|
|
sljit_emit_return(compiler, SLJIT_MOV, SLJIT_RETURN_REG, 0);
|
|
|
|
if (mode != PCRE2_JIT_COMPLETE)
|
|
{
|
|
common->partialmatchlabel = LABEL();
|
|
set_jumps(common->partialmatch, common->partialmatchlabel);
|
|
return_with_partial_match(common, common->quit_label);
|
|
}
|
|
|
|
if (common->might_be_empty)
|
|
empty_match_backtrack_label = LABEL();
|
|
compile_backtrackingpath(common, rootbacktrack.top);
|
|
if (SLJIT_UNLIKELY(sljit_get_compiler_error(compiler)))
|
|
{
|
|
sljit_free_compiler(compiler);
|
|
SLJIT_FREE(common->optimized_cbracket, allocator_data);
|
|
SLJIT_FREE(common->private_data_ptrs, allocator_data);
|
|
PRIV(jit_free_rodata)(common->read_only_data_head, compiler->allocator_data);
|
|
return PCRE2_ERROR_NOMEMORY;
|
|
}
|
|
|
|
SLJIT_ASSERT(rootbacktrack.prev == NULL);
|
|
reset_match_label = LABEL();
|
|
|
|
if (mode == PCRE2_JIT_PARTIAL_SOFT)
|
|
{
|
|
/* Update hit_start only in the first time. */
|
|
jump = CMP(SLJIT_NOT_EQUAL, SLJIT_MEM1(SLJIT_SP), common->hit_start, SLJIT_IMM, 0);
|
|
OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_SP), common->start_ptr);
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), common->start_used_ptr, SLJIT_IMM, -1);
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), common->hit_start, TMP1, 0);
|
|
JUMPHERE(jump);
|
|
}
|
|
|
|
/* Check we have remaining characters. */
|
|
if ((re->overall_options & PCRE2_ANCHORED) == 0 && common->match_end_ptr != 0)
|
|
{
|
|
OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_SP), common->match_end_ptr);
|
|
}
|
|
|
|
OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_MEM1(SLJIT_SP),
|
|
(common->fast_forward_bc_ptr != NULL) ? (PRIVATE_DATA(common->fast_forward_bc_ptr + 1)) : common->start_ptr);
|
|
|
|
if ((re->overall_options & PCRE2_ANCHORED) == 0)
|
|
{
|
|
if (common->ff_newline_shortcut != NULL)
|
|
{
|
|
/* There cannot be more newlines if PCRE2_FIRSTLINE is set. */
|
|
if ((re->overall_options & PCRE2_FIRSTLINE) == 0)
|
|
{
|
|
if (common->match_end_ptr != 0)
|
|
{
|
|
OP1(SLJIT_MOV, TMP3, 0, STR_END, 0);
|
|
OP1(SLJIT_MOV, STR_END, 0, TMP1, 0);
|
|
CMPTO(SLJIT_LESS, STR_PTR, 0, TMP1, 0, common->ff_newline_shortcut);
|
|
OP1(SLJIT_MOV, STR_END, 0, TMP3, 0);
|
|
}
|
|
else
|
|
CMPTO(SLJIT_LESS, STR_PTR, 0, STR_END, 0, common->ff_newline_shortcut);
|
|
}
|
|
}
|
|
else
|
|
CMPTO(SLJIT_LESS, STR_PTR, 0, (common->match_end_ptr == 0) ? STR_END : TMP1, 0, mainloop_label);
|
|
}
|
|
|
|
/* No more remaining characters. */
|
|
if (reqbyte_notfound != NULL)
|
|
JUMPHERE(reqbyte_notfound);
|
|
|
|
if (mode == PCRE2_JIT_PARTIAL_SOFT)
|
|
CMPTO(SLJIT_NOT_EQUAL, SLJIT_MEM1(SLJIT_SP), common->hit_start, SLJIT_IMM, -1, common->partialmatchlabel);
|
|
|
|
OP1(SLJIT_MOV, SLJIT_RETURN_REG, 0, SLJIT_IMM, PCRE2_ERROR_NOMATCH);
|
|
JUMPTO(SLJIT_JUMP, common->quit_label);
|
|
|
|
flush_stubs(common);
|
|
|
|
if (common->might_be_empty)
|
|
{
|
|
JUMPHERE(empty_match);
|
|
OP1(SLJIT_MOV, TMP1, 0, ARGUMENTS, 0);
|
|
OP1(SLJIT_MOV_U32, TMP2, 0, SLJIT_MEM1(TMP1), SLJIT_OFFSETOF(jit_arguments, options));
|
|
OP2(SLJIT_AND | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP2, 0, SLJIT_IMM, PCRE2_NOTEMPTY);
|
|
JUMPTO(SLJIT_NOT_ZERO, empty_match_backtrack_label);
|
|
OP2(SLJIT_AND | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP2, 0, SLJIT_IMM, PCRE2_NOTEMPTY_ATSTART);
|
|
JUMPTO(SLJIT_ZERO, empty_match_found_label);
|
|
OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(TMP1), SLJIT_OFFSETOF(jit_arguments, str));
|
|
CMPTO(SLJIT_NOT_EQUAL, TMP2, 0, STR_PTR, 0, empty_match_found_label);
|
|
JUMPTO(SLJIT_JUMP, empty_match_backtrack_label);
|
|
}
|
|
|
|
common->fast_forward_bc_ptr = NULL;
|
|
common->fast_fail_start_ptr = 0;
|
|
common->fast_fail_end_ptr = 0;
|
|
common->currententry = common->entries;
|
|
common->local_exit = TRUE;
|
|
quit_label = common->quit_label;
|
|
while (common->currententry != NULL)
|
|
{
|
|
/* Might add new entries. */
|
|
compile_recurse(common);
|
|
if (SLJIT_UNLIKELY(sljit_get_compiler_error(compiler)))
|
|
{
|
|
sljit_free_compiler(compiler);
|
|
SLJIT_FREE(common->optimized_cbracket, allocator_data);
|
|
SLJIT_FREE(common->private_data_ptrs, allocator_data);
|
|
PRIV(jit_free_rodata)(common->read_only_data_head, compiler->allocator_data);
|
|
return PCRE2_ERROR_NOMEMORY;
|
|
}
|
|
flush_stubs(common);
|
|
common->currententry = common->currententry->next;
|
|
}
|
|
common->local_exit = FALSE;
|
|
common->quit_label = quit_label;
|
|
|
|
/* Allocating stack, returns with PCRE_ERROR_JIT_STACKLIMIT if fails. */
|
|
/* This is a (really) rare case. */
|
|
set_jumps(common->stackalloc, LABEL());
|
|
/* RETURN_ADDR is not a saved register. */
|
|
sljit_emit_fast_enter(compiler, SLJIT_MEM1(SLJIT_SP), LOCALS0);
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), LOCALS1, TMP2, 0);
|
|
OP1(SLJIT_MOV, TMP1, 0, ARGUMENTS, 0);
|
|
OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(TMP1), SLJIT_OFFSETOF(jit_arguments, stack));
|
|
OP1(SLJIT_MOV, SLJIT_MEM1(TMP1), SLJIT_OFFSETOF(struct sljit_stack, top), STACK_TOP, 0);
|
|
OP2(SLJIT_ADD, TMP2, 0, SLJIT_MEM1(TMP1), SLJIT_OFFSETOF(struct sljit_stack, limit), SLJIT_IMM, STACK_GROWTH_RATE);
|
|
|
|
sljit_emit_ijump(compiler, SLJIT_CALL2, SLJIT_IMM, SLJIT_FUNC_OFFSET(sljit_stack_resize));
|
|
jump = CMP(SLJIT_NOT_EQUAL, SLJIT_RETURN_REG, 0, SLJIT_IMM, 0);
|
|
OP1(SLJIT_MOV, TMP1, 0, ARGUMENTS, 0);
|
|
OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(TMP1), SLJIT_OFFSETOF(jit_arguments, stack));
|
|
OP1(SLJIT_MOV, STACK_TOP, 0, SLJIT_MEM1(TMP1), SLJIT_OFFSETOF(struct sljit_stack, top));
|
|
OP1(SLJIT_MOV, STACK_LIMIT, 0, SLJIT_MEM1(TMP1), SLJIT_OFFSETOF(struct sljit_stack, limit));
|
|
OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(SLJIT_SP), LOCALS1);
|
|
sljit_emit_fast_return(compiler, SLJIT_MEM1(SLJIT_SP), LOCALS0);
|
|
|
|
/* Allocation failed. */
|
|
JUMPHERE(jump);
|
|
/* We break the return address cache here, but this is a really rare case. */
|
|
OP1(SLJIT_MOV, SLJIT_RETURN_REG, 0, SLJIT_IMM, PCRE2_ERROR_JIT_STACKLIMIT);
|
|
JUMPTO(SLJIT_JUMP, common->quit_label);
|
|
|
|
/* Call limit reached. */
|
|
set_jumps(common->calllimit, LABEL());
|
|
OP1(SLJIT_MOV, SLJIT_RETURN_REG, 0, SLJIT_IMM, PCRE2_ERROR_MATCHLIMIT);
|
|
JUMPTO(SLJIT_JUMP, common->quit_label);
|
|
|
|
if (common->revertframes != NULL)
|
|
{
|
|
set_jumps(common->revertframes, LABEL());
|
|
do_revertframes(common);
|
|
}
|
|
if (common->wordboundary != NULL)
|
|
{
|
|
set_jumps(common->wordboundary, LABEL());
|
|
check_wordboundary(common);
|
|
}
|
|
if (common->anynewline != NULL)
|
|
{
|
|
set_jumps(common->anynewline, LABEL());
|
|
check_anynewline(common);
|
|
}
|
|
if (common->hspace != NULL)
|
|
{
|
|
set_jumps(common->hspace, LABEL());
|
|
check_hspace(common);
|
|
}
|
|
if (common->vspace != NULL)
|
|
{
|
|
set_jumps(common->vspace, LABEL());
|
|
check_vspace(common);
|
|
}
|
|
if (common->casefulcmp != NULL)
|
|
{
|
|
set_jumps(common->casefulcmp, LABEL());
|
|
do_casefulcmp(common);
|
|
}
|
|
if (common->caselesscmp != NULL)
|
|
{
|
|
set_jumps(common->caselesscmp, LABEL());
|
|
do_caselesscmp(common);
|
|
}
|
|
if (common->reset_match != NULL)
|
|
{
|
|
set_jumps(common->reset_match, LABEL());
|
|
do_reset_match(common, (re->top_bracket + 1) * 2);
|
|
CMPTO(SLJIT_GREATER, STR_PTR, 0, TMP1, 0, continue_match_label);
|
|
OP1(SLJIT_MOV, STR_PTR, 0, TMP1, 0);
|
|
JUMPTO(SLJIT_JUMP, reset_match_label);
|
|
}
|
|
#ifdef SUPPORT_UNICODE
|
|
#if PCRE2_CODE_UNIT_WIDTH == 8
|
|
if (common->utfreadchar != NULL)
|
|
{
|
|
set_jumps(common->utfreadchar, LABEL());
|
|
do_utfreadchar(common);
|
|
}
|
|
if (common->utfreadchar16 != NULL)
|
|
{
|
|
set_jumps(common->utfreadchar16, LABEL());
|
|
do_utfreadchar16(common);
|
|
}
|
|
if (common->utfreadtype8 != NULL)
|
|
{
|
|
set_jumps(common->utfreadtype8, LABEL());
|
|
do_utfreadtype8(common);
|
|
}
|
|
#endif /* PCRE2_CODE_UNIT_WIDTH == 8 */
|
|
if (common->getucd != NULL)
|
|
{
|
|
set_jumps(common->getucd, LABEL());
|
|
do_getucd(common);
|
|
}
|
|
#endif /* SUPPORT_UNICODE */
|
|
|
|
SLJIT_FREE(common->optimized_cbracket, allocator_data);
|
|
SLJIT_FREE(common->private_data_ptrs, allocator_data);
|
|
|
|
executable_func = sljit_generate_code(compiler);
|
|
executable_size = sljit_get_generated_code_size(compiler);
|
|
label_addr = common->label_addrs;
|
|
while (label_addr != NULL)
|
|
{
|
|
*label_addr->update_addr = sljit_get_label_addr(label_addr->label);
|
|
label_addr = label_addr->next;
|
|
}
|
|
sljit_free_compiler(compiler);
|
|
if (executable_func == NULL)
|
|
{
|
|
PRIV(jit_free_rodata)(common->read_only_data_head, compiler->allocator_data);
|
|
return PCRE2_ERROR_NOMEMORY;
|
|
}
|
|
|
|
/* Reuse the function descriptor if possible. */
|
|
if (re->executable_jit != NULL)
|
|
functions = (executable_functions *)re->executable_jit;
|
|
else
|
|
{
|
|
functions = SLJIT_MALLOC(sizeof(executable_functions), allocator_data);
|
|
if (functions == NULL)
|
|
{
|
|
/* This case is highly unlikely since we just recently
|
|
freed a lot of memory. Not impossible though. */
|
|
sljit_free_code(executable_func);
|
|
PRIV(jit_free_rodata)(common->read_only_data_head, compiler->allocator_data);
|
|
return PCRE2_ERROR_NOMEMORY;
|
|
}
|
|
memset(functions, 0, sizeof(executable_functions));
|
|
functions->top_bracket = re->top_bracket + 1;
|
|
functions->limit_match = re->limit_match;
|
|
re->executable_jit = functions;
|
|
}
|
|
|
|
/* Turn mode into an index. */
|
|
if (mode == PCRE2_JIT_COMPLETE)
|
|
mode = 0;
|
|
else
|
|
mode = (mode == PCRE2_JIT_PARTIAL_SOFT) ? 1 : 2;
|
|
|
|
SLJIT_ASSERT(mode < JIT_NUMBER_OF_COMPILE_MODES);
|
|
functions->executable_funcs[mode] = executable_func;
|
|
functions->read_only_data_heads[mode] = common->read_only_data_head;
|
|
functions->executable_sizes[mode] = executable_size;
|
|
return 0;
|
|
}
|
|
|
|
#endif
|
|
|
|
/*************************************************
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* JIT compile a Regular Expression *
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*************************************************/
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/* This function used JIT to convert a previously-compiled pattern into machine
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code.
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Arguments:
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code a compiled pattern
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options JIT option bits
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Returns: 0: success or (*NOJIT) was used
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<0: an error code
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*/
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#define PUBLIC_JIT_COMPILE_OPTIONS \
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(PCRE2_JIT_COMPLETE|PCRE2_JIT_PARTIAL_SOFT|PCRE2_JIT_PARTIAL_HARD)
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PCRE2_EXP_DEFN int PCRE2_CALL_CONVENTION
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pcre2_jit_compile(pcre2_code *code, uint32_t options)
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{
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#ifndef SUPPORT_JIT
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(void)code;
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(void)options;
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return PCRE2_ERROR_JIT_BADOPTION;
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#else /* SUPPORT_JIT */
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pcre2_real_code *re = (pcre2_real_code *)code;
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executable_functions *functions;
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int result;
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if (code == NULL)
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return PCRE2_ERROR_NULL;
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if ((options & ~PUBLIC_JIT_COMPILE_OPTIONS) != 0)
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return PCRE2_ERROR_JIT_BADOPTION;
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if ((re->flags & PCRE2_NOJIT) != 0) return 0;
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functions = (executable_functions *)re->executable_jit;
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if ((options & PCRE2_JIT_COMPLETE) != 0 && (functions == NULL
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|| functions->executable_funcs[0] == NULL)) {
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result = jit_compile(code, PCRE2_JIT_COMPLETE);
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if (result != 0)
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return result;
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}
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if ((options & PCRE2_JIT_PARTIAL_SOFT) != 0 && (functions == NULL
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|| functions->executable_funcs[1] == NULL)) {
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result = jit_compile(code, PCRE2_JIT_PARTIAL_SOFT);
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if (result != 0)
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return result;
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}
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if ((options & PCRE2_JIT_PARTIAL_HARD) != 0 && (functions == NULL
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|| functions->executable_funcs[2] == NULL)) {
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result = jit_compile(code, PCRE2_JIT_PARTIAL_HARD);
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if (result != 0)
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return result;
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}
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return 0;
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#endif /* SUPPORT_JIT */
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}
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/* JIT compiler uses an all-in-one approach. This improves security,
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since the code generator functions are not exported. */
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#define INCLUDED_FROM_PCRE2_JIT_COMPILE
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#include "pcre2_jit_match.c"
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#include "pcre2_jit_misc.c"
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/* End of pcre2_jit_compile.c */
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