/****************************************************************************+
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**+
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** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).+
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** All rights reserved.+
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** Contact: Nokia Corporation (qt-info@nokia.com)+
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**+
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** This file is part of the qt3to4 porting application of the Qt Toolkit.+
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**+
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** $QT_BEGIN_LICENSE:LGPL$+
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** No Commercial Usage+
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** This file contains pre-release code and may not be distributed.+
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** You may use this file in accordance with the terms and conditions+
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** contained in the Technology Preview License Agreement accompanying+
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** this package.+
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**+
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** GNU Lesser General Public License Usage+
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** Alternatively, this file may be used under the terms of the GNU Lesser+
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** General Public License version 2.1 as published by the Free Software+
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** Foundation and appearing in the file LICENSE.LGPL included in the+
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** packaging of this file.  Please review the following information to+
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** ensure the GNU Lesser General Public License version 2.1 requirements+
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** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.+
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**+
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** In addition, as a special exception, Nokia gives you certain additional+
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** rights.  These rights are described in the Nokia Qt LGPL Exception+
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.+
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**+
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** If you have questions regarding the use of this file, please contact+
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** Nokia at qt-info@nokia.com.+
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**+
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**+
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** $QT_END_LICENSE$+
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**+
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****************************************************************************/+
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+
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#ifndef TOKENREPLACEMENTS_H+
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#define TOKENREPLACEMENTS_H+
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+
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#include "tokenengine.h"+
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#include "textreplacement.h"+
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#include <QStringList>+
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#include <QByteArray>+
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+
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QT_BEGIN_NAMESPACE+
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+
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void addLogSourceEntry(const QString &text, const TokenEngine::TokenContainer&, const int index);+
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void addLogWarning(const QString &text);+
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+
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class TokenReplacement+
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{+
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public:+
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+
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    virtual bool doReplace(const TokenEngine::TokenContainer& ,+
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                           int /*tokenIndex*/,+
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                           TextReplacements&){return false;};+
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    /*+
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        returns the replace key for this replacement. Every time a token matches the replace key,+
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        doReplace() will be called for this TokenReplacement.+
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    */+
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    virtual QByteArray getReplaceKey(){return QByteArray();};+
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    virtual ~TokenReplacement(){};+
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};+
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+
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/*+
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    A TokenReplacement that change any token+
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*/+
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class GenericTokenReplacement : public TokenReplacement+
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{+
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public:+
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    GenericTokenReplacement(QByteArray oldToken, QByteArray newToken);+
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    bool doReplace(const TokenEngine::TokenContainer &tokenContainer,+
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                   int tokenIndex, TextReplacements &textReplacements);+
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    QByteArray getReplaceKey();+
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private:+
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    QByteArray oldToken;+
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    QByteArray newToken;+
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};+
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+
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/*+
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    A TokenReplacement that changes tokens that specify class names.+
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    In some cases where the class name token is a part of a qualified name+
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    it is not correct to rename it. ex:+
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+
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    QButton::toggleState+
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+
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    Here it is wrong to rename QButton -> Q3Button, since there is+
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    a rule that says QButton::ToggleState -> QCheckBox::ToggleState,+
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    but no rule for Q3Button::ToggleState.+
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*/+
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class ClassNameReplacement : public TokenReplacement+
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{+
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public:+
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    ClassNameReplacement(QByteArray oldToken, QByteArray newToken);+
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    bool doReplace(const TokenEngine::TokenContainer &tokenContainer,+
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                   int tokenIndex, TextReplacements &textReplacements);+
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    QByteArray getReplaceKey();+
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private:+
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    QByteArray oldToken;+
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    QByteArray newToken;+
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};+
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+
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/*+
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   Changes scoped tokens:+
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   AA::BB -> CC::DD+
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   oldToken corresponds to the AA::BB part, newToken corresponds CC::DD.+
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   Since this is a token replacement, the AA part of oldToken is typically+
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   unknown. This means that we might change tokens named BB that does not belong+
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   to the AA scope. Ast replacemnts will fix this.+
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+
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*/+
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class ScopedTokenReplacement : public TokenReplacement+
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{+
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public:+
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    ScopedTokenReplacement(const QByteArray &oldToken, const QByteArray &newToken);+
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    bool doReplace(const TokenEngine::TokenContainer &tokenContainer,+
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                   int tokenIndex, TextReplacements &textReplacements);+
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    QByteArray getReplaceKey();+
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private:+
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    QByteArray oldName;+
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    QByteArray oldScope;+
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    QByteArray newName;+
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    QByteArray newScope;+
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    QByteArray newScopedName;+
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    bool strictMode;+
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};+
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+
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class QualifiedNameParser+
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{+
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public:+
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    QualifiedNameParser(const TokenEngine::TokenContainer &tokenContainer,+
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                        const int tokenIndex);+
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    enum Direction { Left=-1, Right=1 };+
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    bool isPartOfQualifiedName();+
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    bool isValidIndex(int index);+
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    bool isQualifier();+
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    bool isName();+
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    int peek(Direction direction);+
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    int move(Direction direction);+
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private:+
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    int nextScopeToken(Direction direction);+
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    int findScopeOperator(Direction direction);+
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    const TokenEngine::TokenContainer tokenContainer;+
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    int currentIndex;+
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};+
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+
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QT_END_NAMESPACE+
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+
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#endif+
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