| /* |
| * Copyright (C) 2009 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. |
| */ |
| |
| #ifndef Yarr_h |
| #define Yarr_h |
| |
| #include "YarrInterpreter.h" |
| #include "YarrPattern.h" |
| |
| namespace JSC { namespace Yarr { |
| |
| #define YarrStackSpaceForBackTrackInfoPatternCharacter 1 // Only for !fixed quantifiers. |
| #define YarrStackSpaceForBackTrackInfoCharacterClass 1 // Only for !fixed quantifiers. |
| #define YarrStackSpaceForBackTrackInfoBackReference 2 |
| #define YarrStackSpaceForBackTrackInfoAlternative 1 // One per alternative. |
| #define YarrStackSpaceForBackTrackInfoParentheticalAssertion 1 |
| #define YarrStackSpaceForBackTrackInfoParenthesesOnce 1 // Only for !fixed quantifiers. |
| #define YarrStackSpaceForBackTrackInfoParenthesesTerminal 1 |
| #define YarrStackSpaceForBackTrackInfoParentheses 2 |
| |
| static const unsigned quantifyInfinite = UINT_MAX; |
| static const unsigned offsetNoMatch = (unsigned)-1; |
| |
| // The below limit restricts the number of "recursive" match calls in order to |
| // avoid spending exponential time on complex regular expressions. |
| static const unsigned matchLimit = 1000000; |
| |
| enum JSRegExpResult { |
| JSRegExpMatch = 1, |
| JSRegExpNoMatch = 0, |
| JSRegExpErrorNoMatch = -1, |
| JSRegExpErrorHitLimit = -2, |
| JSRegExpErrorNoMemory = -3, |
| JSRegExpErrorInternal = -4 |
| }; |
| |
| enum YarrCharSize { |
| Char8, |
| Char16 |
| }; |
| |
| } } // namespace JSC::Yarr |
| |
| #endif // Yarr_h |
| |