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+/*
+ * Copyright (C) 1999-2000 Harri Porten (porten@kde.org)
+ * Copyright (C) 2007, 2008, 2009 Apple Inc. All rights reserved.
+ * Copyright (C) 2009 Torch Mobile, Inc.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ *
+ */
+
+#ifndef RegExp_h
+#define RegExp_h
+
+#include "UString.h"
+#include "WREC.h"
+#include "ExecutableAllocator.h"
+#include <wtf/Forward.h>
+#include <wtf/RefCounted.h>
+#include "yarr/RegexJIT.h"
+#include "yarr/RegexInterpreter.h"
+
+struct JSRegExp;
+
+namespace JSC {
+
+ class JSGlobalData;
+
+ class RegExp : public RefCounted<RegExp> {
+ public:
+ static PassRefPtr<RegExp> create(JSGlobalData* globalData, const UString& pattern);
+ static PassRefPtr<RegExp> create(JSGlobalData* globalData, const UString& pattern, const UString& flags);
+#if !ENABLE(YARR)
+ ~RegExp();
+#endif
+
+ bool global() const { return m_flagBits & Global; }
+ bool ignoreCase() const { return m_flagBits & IgnoreCase; }
+ bool multiline() const { return m_flagBits & Multiline; }
+
+ const UString& pattern() const { return m_pattern; }
+ const UString& flags() const { return m_flags; }
+
+ bool isValid() const { return !m_constructionError; }
+ const char* errorMessage() const { return m_constructionError; }
+
+ int match(const UString&, int startOffset, Vector<int, 32>* ovector = 0);
+ unsigned numSubpatterns() const { return m_numSubpatterns; }
+
+ private:
+ RegExp(JSGlobalData* globalData, const UString& pattern);
+ RegExp(JSGlobalData* globalData, const UString& pattern, const UString& flags);
+
+ void compile(JSGlobalData*);
+
+ enum FlagBits { Global = 1, IgnoreCase = 2, Multiline = 4 };
+
+ UString m_pattern; // FIXME: Just decompile m_regExp instead of storing this.
+ UString m_flags; // FIXME: Just decompile m_regExp instead of storing this.
+ int m_flagBits;
+ const char* m_constructionError;
+ unsigned m_numSubpatterns;
+
+#if ENABLE(YARR_JIT)
+ Yarr::RegexCodeBlock m_regExpJITCode;
+#elif ENABLE(YARR)
+ OwnPtr<Yarr::BytecodePattern> m_regExpBytecode;
+#else
+#if ENABLE(WREC)
+ WREC::CompiledRegExp m_wrecFunction;
+ RefPtr<ExecutablePool> m_executablePool;
+#endif
+ JSRegExp* m_regExp;
+#endif
+ };
+
+} // namespace JSC
+
+#endif // RegExp_h