1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
|
/*
* Copyright (C) 2009-2019 Apple Inc. All rights reserved.
* Copyright (C) 2010 Peter Varga (pvarga@inf.u-szeged.hu), University of Szeged
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY UNIVERSITY OF SZEGED ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL UNIVERSITY OF SZEGED OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#pragma once
#include <limits.h>
#include "YarrErrorCode.h"
namespace JSC { namespace Yarr {
#define YarrStackSpaceForBackTrackInfoPatternCharacter 2 // Only for !fixed quantifiers.
#define YarrStackSpaceForBackTrackInfoCharacterClass 2 // Only for !fixed quantifiers.
#define YarrStackSpaceForBackTrackInfoBackReference 3
#define YarrStackSpaceForBackTrackInfoAlternative 1 // One per alternative.
#define YarrStackSpaceForBackTrackInfoParentheticalAssertion 1
#define YarrStackSpaceForBackTrackInfoParenthesesOnce 2
#define YarrStackSpaceForBackTrackInfoParenthesesTerminal 1
#define YarrStackSpaceForBackTrackInfoParentheses 4
#define YarrStackSpaceForDotStarEnclosure 1
static constexpr unsigned quantifyInfinite = UINT_MAX;
static constexpr unsigned offsetNoMatch = std::numeric_limits<unsigned>::max();
// The below limit restricts the number of "recursive" match calls in order to
// avoid spending exponential time on complex regular expressions.
static constexpr unsigned matchLimit = 1000000;
enum class MatchFrom { VMThread, CompilerThread };
enum class JSRegExpResult {
Match = 1,
NoMatch = 0,
ErrorNoMatch = -1,
JITCodeFailure = -2,
ErrorHitLimit = -3,
ErrorNoMemory = -4,
ErrorInternal = -5,
};
enum class CharSize : uint8_t {
Char8,
Char16
};
enum class BuiltInCharacterClassID : unsigned {
DigitClassID,
SpaceClassID,
WordClassID,
DotClassID,
BaseUnicodePropertyID,
};
struct BytecodePattern;
} } // namespace JSC::Yarr
|
