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diff --git a/lib/kformula/sequenceparser.h b/lib/kformula/sequenceparser.h
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+/* This file is part of the KDE project
+   Copyright (C) 2001 Andrea Rizzi <rizzi@kde.org>
+	              Ulrich Kuettler <ulrich.kuettler@mailbox.tu-dresden.de>
+
+   This library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public
+   License as published by the Free Software Foundation; either
+   version 2 of the License, or (at your option) any later version.
+
+   This library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public License
+   along with this library; see the file COPYING.LIB.  If not, write to
+   the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ * Boston, MA 02110-1301, USA.
+*/
+
+#ifndef SEQUENCEPARSER_H
+#define SEQUENCEPARSER_H
+
+#include <qptrlist.h>
+#include <qstring.h>
+
+#include "kformuladefs.h"
+
+KFORMULA_NAMESPACE_BEGIN
+
+class BasicElement;
+class ElementType;
+class SymbolTable;
+
+
+/**
+ * The parser that gets the element list and returns a syntax tree.
+ */
+class SequenceParser {
+public:
+    SequenceParser(const SymbolTable& table);
+
+    /**
+     * @returns a parse tree.
+     */
+    ElementType* parse(QPtrList<BasicElement>& elements);
+
+    /**
+     * Reads the next token.
+     */
+    void nextToken();
+
+    uint getStart() const { return tokenStart; }
+    uint getEnd() const { return tokenEnd; }
+    TokenType getTokenType() const { return type; }
+
+    /**
+     * Tells the element about its new type.
+     *
+     * @param pos the position of the element
+     * @param type the new type
+     */
+    void setElementType(uint pos, ElementType* type);
+
+    /**
+     * @returns a new primitive token.
+     */
+    ElementType* getPrimitive();
+
+    /**
+     * @returns the current token's text
+     */
+    QString text();
+
+private:
+
+    /**
+     * Reads the next token which is a number.
+     */
+    void readNumber();
+
+    /**
+     * Reads a sequence of digits.
+     */
+    void readDigits();
+
+    /**
+     * Reads the next token which is some text.
+     */
+    void readText();
+
+    /**
+     * @returns the char at tokenEnd.
+     */
+    QChar getEndChar();
+
+    /**
+     * The elements we want to parse. The parser must not change
+     * it!
+     */
+    QPtrList<BasicElement> list;
+
+    /**
+     * The position up to which we have read. The current
+     * token starts here.
+     */
+    uint tokenStart;
+
+    /**
+     * The first position after the current token.
+     */
+    uint tokenEnd;
+
+    /**
+     * The type of the current token.
+     */
+    TokenType type;
+
+    /**
+     * Whether the next token might be a binary operator.
+     */
+    bool binOpAllowed;
+
+    /**
+     * The table that contains all known symbols.
+     */
+    const SymbolTable& table;
+};
+
+KFORMULA_NAMESPACE_END
+
+#endif // SEQUENCEPARSER_H