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# ntqregexp.h

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

    /****************************************************************************
    ** $Id: qt/ntqregexp.h   3.3.8   edited Jan 11 14:38 $
    **
    ** Definition of TQRegExp class
    **
    ** Created : 950126
    **
    ** Copyright (C) 1992-2007 Trolltech ASA.  All rights reserved.
    **
    ** This file is part of the tools module of the TQt GUI Toolkit.
    **
    ** This file may be used under the terms of the GNU General Public
    ** License versions 2.0 or 3.0 as published by the Free Software
    ** Foundation and appearing in the file LICENSE.GPL included in the
    ** packaging of this file. Alternatively you may (at your option) use any
    ** later version of the GNU General Public License if such license has
    ** been publicly approved by Trolltech ASA (or its successors, if any)
    ** and the KDE Free TQt Foundation.
    **
    ** Please review the following information to ensure GNU General
    ** Public Licensing requirements will be met:
    ** http://trolltech.com/products/qt/licenses/licensing/opensource/.
    ** If you are unsure which license is appropriate for your use, please
    ** review the following information:
    ** http://trolltech.com/products/qt/licenses/licensing/licensingoverview
    ** or contact the sales department at sales@trolltech.com.
    **
    ** This file may be used under the terms of the Q Public License as
    ** defined by Trolltech ASA and appearing in the file LICENSE.TQPL
    ** included in the packaging of this file.  Licensees holding valid TQt
    ** Commercial licenses may use this file in accordance with the TQt
    ** Commercial License Agreement provided with the Software.
    **
    ** This file is provided "AS IS" with NO WARRANTY OF ANY KIND,
    ** INCLUDING THE WARRANTIES OF DESIGN, MERCHANTABILITY AND FITNESS FOR
    ** A PARTICULAR PURPOSE. Trolltech reserves all rights not granted
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    **********************************************************************/

    #ifndef TQREGEXP_H
    #define TQREGEXP_H

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

    #ifndef QT_NO_REGEXP
    class TQRegExpEngine;
    struct TQRegExpPrivate;

    class Q_EXPORT TQRegExp
    {
    public:
        enum CaretMode { CaretAtZero, CaretAtOffset, CaretWontMatch };

        TQRegExp();
        TQRegExp( const TQString& pattern, bool caseSensitive = TRUE,
    	     bool wildcard = FALSE );
        TQRegExp( const TQRegExp& rx );
        ~TQRegExp();
        TQRegExp& operator=( const TQRegExp& rx );

        bool operator==( const TQRegExp& rx ) const;
        bool operator!=( const TQRegExp& rx ) const { return !operator==( rx ); }

        bool isEmpty() const;
        bool isValid() const;
        TQString pattern() const;
        void setPattern( const TQString& pattern );
        bool caseSensitive() const;
        void setCaseSensitive( bool sensitive );
    #ifndef QT_NO_REGEXP_WILDCARD
        bool wildcard() const;
        void setWildcard( bool wildcard );
    #endif
        bool minimal() const;
        void setMinimal( bool minimal );

        bool exactMatch( const TQString& str ) const;
    #ifndef QT_NO_COMPAT
        int match( const TQString& str, int index = 0, int *len = 0,
    	       bool indexIsStart = TRUE ) const;
    #endif

    #if defined(Q_QDOC)
        int search( const TQString& str, int offset = 0,
    		CaretMode caretMode = CaretAtZero ) const;
        int searchRev( const TQString& str, int offset = -1,
    		   CaretMode caretMode = CaretAtZero ) const;
    #else
        // ### TQt 4.0: reduce these four to two functions
        int search( const TQString& str, int offset = 0 ) const;
        int search( const TQString& str, int offset, CaretMode caretMode ) const;
        int searchRev( const TQString& str, int offset = -1 ) const;
        int searchRev( const TQString& str, int offset, CaretMode caretMode ) const;
    #endif
        int matchedLength() const;
    #ifndef QT_NO_REGEXP_CAPTURE
        int numCaptures() const;
        TQStringList capturedTexts();
        TQString cap( int nth = 0 );
        int pos( int nth = 0 );
        TQString errorString();
    #endif

        static TQString escape( const TQString& str );

    private:
        void prepareEngine() const;
        void prepareEngineForMatch( const TQString& str ) const;
        void invalidateEngine();

        static int caretIndex( int offset, CaretMode caretMode );

        TQRegExpEngine *eng;
        TQRegExpPrivate *priv;
    };
    #endif // QT_NO_REGEXP
    #endif // TQREGEXP_H