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

source code of qtscript/src/3rdparty/javascriptcore/JavaScriptCore/runtime/RegExp.h