/****************************************************************************

** 

**

** 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.

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** licenses may use this file in accordance with the Qt Commercial License

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**   information about Qt Commercial License Agreements.

** See http://www.trolltech.com/qpl/ for QPL licensing information.

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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