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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 tools applications 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 PARSER_H
+#define PARSER_H
+
+#include <QStack>
+#include "symbols.h"
+
+QT_BEGIN_NAMESPACE
+
+class Parser
+{
+public:
+    Parser():index(0), displayWarnings(true){}
+    Symbols symbols;
+    int index;
+    bool displayWarnings;
+
+    QStack<QByteArray> currentFilenames;
+
+    inline bool hasNext() const { return (index < symbols.size()); }
+    inline Token next() { if (index >= symbols.size()) return NOTOKEN; return symbols.at(index++).token; }
+    bool test(Token);
+    void next(Token);
+    void next(Token, const char *msg);
+    inline void prev() {--index;}
+    inline Token lookup(int k = 1);
+    inline const Symbol &symbol_lookup(int k = 1) { return symbols.at(index-1+k);}
+    inline Token token() { return symbols.at(index-1).token;}
+    inline QByteArray lexem() { return symbols.at(index-1).lexem();}
+    inline QByteArray unquotedLexem() { return symbols.at(index-1).unquotedLexem();}
+    inline const Symbol &symbol() { return symbols.at(index-1);}
+
+    void error(int rollback);
+    void error(const char *msg = 0);
+    void warning(const char * = 0);
+
+};
+
+inline bool Parser::test(Token token)
+{
+    if (index < symbols.size() && symbols.at(index).token == token) {
+        ++index;
+        return true;
+    }
+    return false;
+}
+
+inline Token Parser::lookup(int k)
+{
+    const int l = index - 1 + k;
+    return l < symbols.size() ? symbols.at(l).token : NOTOKEN;
+}
+
+inline void Parser::next(Token token)
+{
+    if (!test(token))
+        error();
+}
+
+inline void Parser::next(Token token, const char *msg)
+{
+    if (!test(token))
+        error(msg);
+}
+
+QT_END_NAMESPACE
+
+#endif