js/src/yarr/Yarr.h@6474c204b198 (annotated)
js/src/yarr/Yarr.h
Wed, 31 Dec 2014 06:09:35 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Wed, 31 Dec 2014 06:09:35 +0100
- changeset 0
- 6474c204b198
- permissions
- -rw-r--r--
Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.
| michael@0 | 1 | /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- |
| michael@0 | 2 | * vim: set ts=8 sts=4 et sw=4 tw=99: |
| michael@0 | 3 | * |
| michael@0 | 4 | * Copyright (C) 2009 Apple Inc. All rights reserved. |
| michael@0 | 5 | * Copyright (C) 2010 Peter Varga (pvarga@inf.u-szeged.hu), University of Szeged |
| michael@0 | 6 | * All rights reserved. |
| michael@0 | 7 | * |
| michael@0 | 8 | * Redistribution and use in source and binary forms, with or without |
| michael@0 | 9 | * modification, are permitted provided that the following conditions |
| michael@0 | 10 | * are met: |
| michael@0 | 11 | * 1. Redistributions of source code must retain the above copyright |
| michael@0 | 12 | * notice, this list of conditions and the following disclaimer. |
| michael@0 | 13 | * 2. Redistributions in binary form must reproduce the above copyright |
| michael@0 | 14 | * notice, this list of conditions and the following disclaimer in the |
| michael@0 | 15 | * documentation and/or other materials provided with the distribution. |
| michael@0 | 16 | * |
| michael@0 | 17 | * THIS SOFTWARE IS PROVIDED BY UNIVERSITY OF SZEGED ``AS IS'' AND ANY |
| michael@0 | 18 | * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| michael@0 | 19 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| michael@0 | 20 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL UNIVERSITY OF SZEGED OR |
| michael@0 | 21 | * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
| michael@0 | 22 | * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
| michael@0 | 23 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
| michael@0 | 24 | * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY |
| michael@0 | 25 | * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| michael@0 | 26 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| michael@0 | 27 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| michael@0 | 28 | */ |
| michael@0 | 29 | |
| michael@0 | 30 | #ifndef yarr_Yarr_h |
| michael@0 | 31 | #define yarr_Yarr_h |
| michael@0 | 32 | |
| michael@0 | 33 | #include <limits.h> |
| michael@0 | 34 | #include "yarr/YarrInterpreter.h" |
| michael@0 | 35 | #include "yarr/YarrPattern.h" |
| michael@0 | 36 | |
| michael@0 | 37 | namespace JSC { namespace Yarr { |
| michael@0 | 38 | |
| michael@0 | 39 | #define YarrStackSpaceForBackTrackInfoPatternCharacter 1 // Only for !fixed quantifiers. |
| michael@0 | 40 | #define YarrStackSpaceForBackTrackInfoCharacterClass 1 // Only for !fixed quantifiers. |
| michael@0 | 41 | #define YarrStackSpaceForBackTrackInfoBackReference 2 |
| michael@0 | 42 | #define YarrStackSpaceForBackTrackInfoAlternative 1 // One per alternative. |
| michael@0 | 43 | #define YarrStackSpaceForBackTrackInfoParentheticalAssertion 1 |
| michael@0 | 44 | #define YarrStackSpaceForBackTrackInfoParenthesesOnce 1 // Only for !fixed quantifiers. |
| michael@0 | 45 | #define YarrStackSpaceForBackTrackInfoParenthesesTerminal 1 |
| michael@0 | 46 | #define YarrStackSpaceForBackTrackInfoParentheses 2 |
| michael@0 | 47 | |
| michael@0 | 48 | static const unsigned quantifyInfinite = UINT_MAX; |
| michael@0 | 49 | static const unsigned offsetNoMatch = (unsigned)-1; |
| michael@0 | 50 | static const unsigned offsetError = (unsigned)-2; |
| michael@0 | 51 | |
| michael@0 | 52 | // The below limit restricts the number of "recursive" match calls in order to |
| michael@0 | 53 | // avoid spending exponential time on complex regular expressions. |
| michael@0 | 54 | static const unsigned matchLimit = 2500000; |
| michael@0 | 55 | |
| michael@0 | 56 | enum JSRegExpResult { |
| michael@0 | 57 | JSRegExpMatch = 1, |
| michael@0 | 58 | JSRegExpNoMatch = 0, |
| michael@0 | 59 | JSRegExpErrorNoMatch = -1, |
| michael@0 | 60 | JSRegExpErrorHitLimit = -2, |
| michael@0 | 61 | JSRegExpErrorNoMemory = -3, |
| michael@0 | 62 | JSRegExpErrorInternal = -4 |
| michael@0 | 63 | }; |
| michael@0 | 64 | |
| michael@0 | 65 | enum YarrCharSize { |
| michael@0 | 66 | Char8, |
| michael@0 | 67 | Char16 |
| michael@0 | 68 | }; |
| michael@0 | 69 | |
| michael@0 | 70 | } } // namespace JSC::Yarr |
| michael@0 | 71 | |
| michael@0 | 72 | #endif /* yarr_Yarr_h */ |
