| 1 | /* |
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| 2 | * Copyright (C) 1999-2000 Harri Porten (porten@kde.org) |
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| 3 | * Copyright (C) 2007, 2008, 2009 Apple Inc. All rights reserved. |
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| 4 | * Copyright (C) 2009 Torch Mobile, Inc. |
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| 5 | * |
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| 6 | * This library is free software; you can redistribute it and/or |
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| 7 | * modify it under the terms of the GNU Lesser General Public |
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| 8 | * License as published by the Free Software Foundation; either |
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| 9 | * version 2 of the License, or (at your option) any later version. |
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| 10 | * |
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| 11 | * This library is distributed in the hope that it will be useful, |
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| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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| 14 | * Lesser General Public License for more details. |
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| 15 | * |
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| 16 | * You should have received a copy of the GNU Lesser General Public |
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| 17 | * License along with this library; if not, write to the Free Software |
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| 18 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
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| 19 | * |
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| 20 | */ |
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| 21 | |
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| 22 | #ifndef RegExp_h |
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| 23 | #define RegExp_h |
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| 24 | |
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| 25 | #include "UString.h" |
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| 26 | #include "WREC.h" |
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| 27 | #include "ExecutableAllocator.h" |
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| 28 | #include <wtf/Forward.h> |
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| 29 | #include <wtf/RefCounted.h> |
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| 30 | #include "yarr/RegexJIT.h" |
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| 31 | #include "yarr/RegexInterpreter.h" |
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| 32 | |
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| 33 | struct JSRegExp; |
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| 34 | |
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| 35 | namespace JSC { |
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| 36 | |
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| 37 | class JSGlobalData; |
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| 38 | |
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| 39 | class RegExp : public RefCounted<RegExp> { |
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| 40 | public: |
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| 41 | static PassRefPtr<RegExp> create(JSGlobalData* globalData, const UString& pattern); |
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| 42 | static PassRefPtr<RegExp> create(JSGlobalData* globalData, const UString& pattern, const UString& flags); |
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| 43 | #if !ENABLE(YARR) |
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| 44 | ~RegExp(); |
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| 45 | #endif |
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| 46 | |
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| 47 | bool global() const { return m_flagBits & Global; } |
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| 48 | bool ignoreCase() const { return m_flagBits & IgnoreCase; } |
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| 49 | bool multiline() const { return m_flagBits & Multiline; } |
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| 50 | |
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| 51 | const UString& pattern() const { return m_pattern; } |
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| 52 | |
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| 53 | bool isValid() const { return !m_constructionError; } |
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| 54 | const char* errorMessage() const { return m_constructionError; } |
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| 55 | |
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| 56 | int match(const UString&, int startOffset, Vector<int, 32>* ovector = 0); |
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| 57 | unsigned numSubpatterns() const { return m_numSubpatterns; } |
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| 58 | |
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| 59 | private: |
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| 60 | RegExp(JSGlobalData* globalData, const UString& pattern); |
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| 61 | RegExp(JSGlobalData* globalData, const UString& pattern, const UString& flags); |
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| 62 | |
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| 63 | void compile(JSGlobalData*); |
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| 64 | |
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| 65 | enum FlagBits { Global = 1, IgnoreCase = 2, Multiline = 4 }; |
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| 66 | |
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| 67 | UString m_pattern; // FIXME: Just decompile m_regExp instead of storing this. |
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| 68 | int m_flagBits; |
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| 69 | const char* m_constructionError; |
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| 70 | unsigned m_numSubpatterns; |
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| 71 | |
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| 72 | #if ENABLE(YARR_JIT) |
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| 73 | Yarr::RegexCodeBlock m_regExpJITCode; |
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| 74 | #elif ENABLE(YARR) |
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| 75 | OwnPtr<Yarr::BytecodePattern> m_regExpBytecode; |
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| 76 | #else |
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| 77 | #if ENABLE(WREC) |
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| 78 | WREC::CompiledRegExp m_wrecFunction; |
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| 79 | RefPtr<ExecutablePool> m_executablePool; |
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| 80 | #endif |
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| 81 | JSRegExp* m_regExp; |
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| 82 | #endif |
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| 83 | }; |
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| 84 | |
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| 85 | } // namespace JSC |
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| 86 | |
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| 87 | #endif // RegExp_h |
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| 88 | |
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