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

source code of qtdeclarative/src/3rdparty/masm/yarr/Yarr.h