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diff --git a/tools/porting/src/portingrules.h b/tools/porting/src/portingrules.h
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+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the qt3to4 porting application of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain
+** additional rights. These rights are described in the Nokia Qt LGPL
+** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef PORTINGRULES_H
+#define PORTINGRULES_H
+
+#include "qtsimplexml.h"
+#include "tokenreplacements.h"
+#include <QList>
+#include <QPair>
+#include <QHash>
+#include <QSet>
+#include <QStringList>
+
+QT_BEGIN_NAMESPACE
+
+class RuleDescription
+{
+public:
+    explicit RuleDescription(QtSimpleXml &replacementRule) {
+        qt3 = replacementRule[QLatin1String("Qt3")].text();
+        qt4 = replacementRule[QLatin1String("Qt4")].text();
+        ruleType = replacementRule.attribute(QLatin1String("Type"));
+    }
+    QString qt3;
+    QString qt4;
+    QString ruleType;
+    bool operator==(const RuleDescription &other) const
+    {
+        return (qt3 == other.qt3 && qt4 == other.qt4 && ruleType == other.ruleType);
+    }
+};
+
+class PortingRules
+{
+public:
+    static void createInstance(QString xmlFilePath);
+    static PortingRules *instance();
+    static void deleteInstance();
+
+    enum QtVersion{Qt3, Qt4};
+    PortingRules(QString xmlFilePath);
+    QList<TokenReplacement*> getTokenReplacementRules();
+    QStringList getHeaderList(QtVersion qtVersion);
+    QHash<QByteArray, QByteArray> getNeededHeaders();
+    QStringList getInheritsQt();
+    QHash<QByteArray, QByteArray> getClassLibraryList();
+    QHash<QByteArray, QByteArray> getHeaderReplacements();
+private:
+    static PortingRules *theInstance;
+
+    QList<TokenReplacement*> tokenRules;
+    QStringList qt3Headers;
+    QStringList qt4Headers;
+    QHash<QByteArray, QByteArray> neededHeaders;
+    QStringList inheritsQtClass;
+    QList<RuleDescription> disabledRules;
+    QHash<QByteArray, QByteArray> classLibraryList;
+    QHash<QByteArray, QByteArray> headerReplacements;
+
+
+    void parseXml(const QString fileName);
+    void checkScopeAddRule(/*const */QtSimpleXml &currentRule);
+    QtSimpleXml *loadXml(const QString fileName) const ;
+    QString resolveFileName(const QString currentFileName,
+                            const QString includeFileName) const;
+    bool isReplacementRule(const QString ruleType) const;
+    void disableRule(QtSimpleXml &replacementRule);
+    bool isRuleDisabled(QtSimpleXml &replacementRule) const;
+    void addLogWarning(const QString text) const;
+    void addLogError(const QString text) const;
+};
+
+QT_END_NAMESPACE
+
+#endif // PORTINGRULES_H