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/*
* Copyright (C) 2008 Apple Inc. 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 APPLE INC. ``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 APPLE INC. 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.
*/
#include <wtf/Platform.h>
#if ENABLE(WREC)
#include "WRECGenerator.h"
#include <wtf/unicode/Unicode.h>
namespace JSC { namespace WREC {
struct CharacterClass;
class GenerateAtomFunctor {
public:
virtual ~GenerateAtomFunctor() {}
virtual void generateAtom(Generator*, Generator::JumpList&) = 0;
virtual void backtrack(Generator*) = 0;
};
class GeneratePatternCharacterFunctor : public GenerateAtomFunctor {
public:
GeneratePatternCharacterFunctor(const UChar ch)
: m_ch(ch)
{
}
virtual void generateAtom(Generator*, Generator::JumpList&);
virtual void backtrack(Generator*);
private:
const UChar m_ch;
};
class GenerateCharacterClassFunctor : public GenerateAtomFunctor {
public:
GenerateCharacterClassFunctor(const CharacterClass* charClass, bool invert)
: m_charClass(charClass)
, m_invert(invert)
{
}
virtual void generateAtom(Generator*, Generator::JumpList&);
virtual void backtrack(Generator*);
private:
const CharacterClass* m_charClass;
bool m_invert;
};
class GenerateBackreferenceFunctor : public GenerateAtomFunctor {
public:
GenerateBackreferenceFunctor(unsigned subpatternId)
: m_subpatternId(subpatternId)
{
}
virtual void generateAtom(Generator*, Generator::JumpList&);
virtual void backtrack(Generator*);
private:
unsigned m_subpatternId;
};
class GenerateParenthesesNonGreedyFunctor : public GenerateAtomFunctor {
public:
GenerateParenthesesNonGreedyFunctor(Generator::Label start, Generator::Jump success, Generator::Jump fail)
: m_start(start)
, m_success(success)
, m_fail(fail)
{
}
virtual void generateAtom(Generator*, Generator::JumpList&);
virtual void backtrack(Generator*);
private:
Generator::Label m_start;
Generator::Jump m_success;
Generator::Jump m_fail;
};
} } // namespace JSC::WREC
#endif // ENABLE(WREC)
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