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# qregexp.h

This is the verbatim text of the qregexp.h include file. It is provided only for illustration; the copyright remains with Trolltech.

    /****************************************************************************
    ** $Id: qt/src/tools/qregexp.h   2.3.0   edited 2001-01-26 $
    **
    ** Definition of QRegExp class
    **
    ** Created : 950126
    **
    ** Copyright (C) 1992-2000 Trolltech AS.  All rights reserved.
    **
    ** This file is part of the tools module of the Qt GUI Toolkit.
    **
    ** This file may be distributed under the terms of the Q Public License
    ** as defined by Trolltech AS of Norway and appearing in the file
    ** LICENSE.QPL included in the packaging of this file.
    **
    ** This file may be distributed and/or modified under the terms of the
    ** GNU General Public License version 2 as published by the Free Software
    ** Foundation and appearing in the file LICENSE.GPL included in the
    ** packaging of this file.
    **
    ** Licensees holding valid Qt Enterprise Edition or Qt Professional Edition
    ** licenses may use this file in accordance with the Qt Commercial License
    ** Agreement provided with the Software.
    **
    ** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
    ** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
    **
    ** See http://www.trolltech.com/pricing.html or email sales@trolltech.com for
    **   information about Qt Commercial License Agreements.
    ** See http://www.trolltech.com/qpl/ for QPL licensing information.
    ** See http://www.trolltech.com/gpl/ for GPL licensing information.
    **
    ** Contact info@trolltech.com if any conditions of this licensing are
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    **
    **********************************************************************/

    #ifndef QREGEXP_H
    #define QREGEXP_H

    #ifndef QT_H
    #include "qstring.h"
    #endif // QT_H

    class Q_EXPORT QRegExp
    {
    public:
        QRegExp();
        QRegExp( const QString &, bool caseSensitive=TRUE, bool wildcard=FALSE );
        QRegExp( const QRegExp & );
       ~QRegExp();
        QRegExp    &operator=( const QRegExp & );
        QRegExp    &operator=( const QString &pattern );

        bool        operator==( const QRegExp & )  const;
        bool        operator!=( const QRegExp &r ) const
                                            { return !(this->operator==(r)); }

        bool        isEmpty()       const   { return rxdata == 0; }
        bool        isValid()       const   { return error == 0; }

        bool        caseSensitive() const   { return cs; }
        void        setCaseSensitive( bool );

        bool        wildcard()      const   { return wc; }
        void        setWildcard( bool );

        QString     pattern()       const   { return rxstring; }
        // ### in Qt 3.0, provide a real implementation
        void        setPattern( const QString& pattern )
                                            { operator=( pattern ); }

        int         match( const QString &str, int index=0, int *len=0,
                           bool indexIsStart = TRUE ) const;
        int         find( const QString& str, int index )
                                            { return match( str, index ); }

    protected:
        void        compile();
        const QChar *matchstr( uint *, const QChar *, uint, const QChar * ) const;

    private:
        QString     rxstring;                       // regular expression pattern
        uint        *rxdata;                        // compiled regexp pattern
        int         error;                          // error status
        bool        cs;                             // case sensitive
        bool        wc;                             // wildcard
    };

    #endif // QREGEXP_H