kformulacompatibility.h

/* This file is part of the KDE project
   Copyright (C) 2001 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 KFORMULACOMPATIBILITY_H
#define KFORMULACOMPATIBILITY_H
 
#include <tqdom.h>
#include <tqstring.h>
 
KFORMULA_NAMESPACE_BEGIN

class Compatibility {
public:
 
    Compatibility();

    TQDomDocument buildDOM(TQString text);
 
private:
 
    TQDomElement readSequence(const TQDomDocument& doc);
    TQDomElement readMatrix(const TQDomDocument& doc);
 
    void appendToSequence(TQDomElement sequence, TQDomElement element, int leftIndexSeen);
 
    void appendNextSequence(const TQDomDocument& doc, TQDomElement element);
    TQDomElement getLastSequence(const TQDomDocument& doc, TQDomElement sequence);
 
    TQDomElement findIndexNode(const TQDomDocument& doc, TQDomElement sequence);
 
    ushort nextToken() { return formulaString[pos++].unicode(); }
    ushort lookAhead(uint i) const { return formulaString[pos+i].unicode(); }
    void pushback() { pos--; }
 
    bool hasNext() const { return pos < formulaString.length(); }
    uint tokenLeft() const { return formulaString.length()-pos; }

    TQString formulaString;

    uint pos;
};
 
KFORMULA_NAMESPACE_END
 
#endif // KFORMULACOMPATIBILITY_H