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diff --git a/tools/porting/src/rppexpressionbuilder.h b/tools/porting/src/rppexpressionbuilder.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 RPPEXPRESSIONBUILDER_H
+#define RPPEXPRESSIONBUILDER_H
+
+#include "tokens.h"
+#include "tokenengine.h"
+#include "smallobject.h"
+#include "rpp.h"
+#include <QByteArray>
+
+QT_BEGIN_NAMESPACE
+
+namespace Rpp {
+
+class ExpressionBuilder
+{
+public:
+    ExpressionBuilder(const TokenEngine::TokenList &tokenList, const QVector<Type> &typeList, TypedPool<Item> *memoryPool);
+    Rpp::Expression *parse();
+private:
+
+    inline bool hasNext() const { return (i < m_tokenList.count()); }
+    Type next();
+    bool test(int);
+    bool moreTokens(int delta);
+    inline void prev() {--i;}
+    Type lookup(int k = 1);
+    inline Type token() { return typeAt(i-1);}
+    inline QByteArray lexem() { return m_tokenList.text(i-1);}
+    inline Type typeAt(int t) { return m_typeList.at(m_tokenList.containerIndex(t));}
+
+    Expression *conditional_expression();
+    Expression *logical_OR_expression();
+    Expression *logical_AND_expression();
+    Expression *inclusive_OR_expression();
+    Expression *exclusive_OR_expression();
+    Expression *AND_expression();
+    Expression *equality_expression();
+    Expression *relational_expression();
+    Expression *shift_expression();
+    Expression *additive_expression();
+    Expression *multiplicative_expression();
+    Expression *unary_expression();
+    Expression *primary_expression();
+
+    bool unary_expression_lookup();
+    bool primary_expression_lookup();
+
+    UnaryExpression *createUnaryExpression(int op, Expression *expression);
+    BinaryExpression *createBinaryExpression(int op, Expression *leftExpresson, Expression *rightExpression);
+    ConditionalExpression *createConditionalExpression(Expression *condition, Expression *leftExpression, Expression *rightExpression);
+    MacroReference *createMacroReference(MacroReference::Type type, TokenEngine::TokenList token);
+    IntLiteral *createIntLiteral(const int arg);
+
+    TokenEngine::TokenList createTokenList(int tokenIndex) const;
+
+    int i;
+    TokenEngine::TokenList m_tokenList;
+    QVector<Type> m_typeList;
+    TypedPool<Item> *m_memoryPool;
+};
+
+}
+
+QT_END_NAMESPACE
+
+#endif