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comparison: js/src/yarr/Yarr.h
js/src/yarr/Yarr.h
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| -1:000000000000 | 0:d99d1456cc3d |
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| 1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- | |
| 2 * vim: set ts=8 sts=4 et sw=4 tw=99: | |
| 3 * | |
| 4 * Copyright (C) 2009 Apple Inc. All rights reserved. | |
| 5 * Copyright (C) 2010 Peter Varga (pvarga@inf.u-szeged.hu), University of Szeged | |
| 6 * All rights reserved. | |
| 7 * | |
| 8 * Redistribution and use in source and binary forms, with or without | |
| 9 * modification, are permitted provided that the following conditions | |
| 10 * are met: | |
| 11 * 1. Redistributions of source code must retain the above copyright | |
| 12 * notice, this list of conditions and the following disclaimer. | |
| 13 * 2. Redistributions in binary form must reproduce the above copyright | |
| 14 * notice, this list of conditions and the following disclaimer in the | |
| 15 * documentation and/or other materials provided with the distribution. | |
| 16 * | |
| 17 * THIS SOFTWARE IS PROVIDED BY UNIVERSITY OF SZEGED ``AS IS'' AND ANY | |
| 18 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
| 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | |
| 20 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL UNIVERSITY OF SZEGED OR | |
| 21 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, | |
| 22 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, | |
| 23 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR | |
| 24 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY | |
| 25 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
| 26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
| 27 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
| 28 */ | |
| 29 | |
| 30 #ifndef yarr_Yarr_h | |
| 31 #define yarr_Yarr_h | |
| 32 | |
| 33 #include <limits.h> | |
| 34 #include "yarr/YarrInterpreter.h" | |
| 35 #include "yarr/YarrPattern.h" | |
| 36 | |
| 37 namespace JSC { namespace Yarr { | |
| 38 | |
| 39 #define YarrStackSpaceForBackTrackInfoPatternCharacter 1 // Only for !fixed quantifiers. | |
| 40 #define YarrStackSpaceForBackTrackInfoCharacterClass 1 // Only for !fixed quantifiers. | |
| 41 #define YarrStackSpaceForBackTrackInfoBackReference 2 | |
| 42 #define YarrStackSpaceForBackTrackInfoAlternative 1 // One per alternative. | |
| 43 #define YarrStackSpaceForBackTrackInfoParentheticalAssertion 1 | |
| 44 #define YarrStackSpaceForBackTrackInfoParenthesesOnce 1 // Only for !fixed quantifiers. | |
| 45 #define YarrStackSpaceForBackTrackInfoParenthesesTerminal 1 | |
| 46 #define YarrStackSpaceForBackTrackInfoParentheses 2 | |
| 47 | |
| 48 static const unsigned quantifyInfinite = UINT_MAX; | |
| 49 static const unsigned offsetNoMatch = (unsigned)-1; | |
| 50 static const unsigned offsetError = (unsigned)-2; | |
| 51 | |
| 52 // The below limit restricts the number of "recursive" match calls in order to | |
| 53 // avoid spending exponential time on complex regular expressions. | |
| 54 static const unsigned matchLimit = 2500000; | |
| 55 | |
| 56 enum JSRegExpResult { | |
| 57 JSRegExpMatch = 1, | |
| 58 JSRegExpNoMatch = 0, | |
| 59 JSRegExpErrorNoMatch = -1, | |
| 60 JSRegExpErrorHitLimit = -2, | |
| 61 JSRegExpErrorNoMemory = -3, | |
| 62 JSRegExpErrorInternal = -4 | |
| 63 }; | |
| 64 | |
| 65 enum YarrCharSize { | |
| 66 Char8, | |
| 67 Char16 | |
| 68 }; | |
| 69 | |
| 70 } } // namespace JSC::Yarr | |
| 71 | |
| 72 #endif /* yarr_Yarr_h */ |
