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src/qt/include/qregexp.h
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00001 /****************************************************************************
00002 ** $Id: qt/qregexp.h   3.3.8   edited Jan 11 14:38 $
00003 **
00004 ** Definition of QRegExp class
00005 **
00006 ** Created : 950126
00007 **
00008 ** Copyright (C) 1992-2007 Trolltech ASA.  All rights reserved.
00009 **
00010 ** This file is part of the tools module of the Qt GUI Toolkit.
00011 **
00012 ** This file may be distributed under the terms of the Q Public License
00013 ** as defined by Trolltech ASA of Norway and appearing in the file
00014 ** LICENSE.QPL included in the packaging of this file.
00015 **
00016 ** This file may be distributed and/or modified under the terms of the
00017 ** GNU General Public License version 2 as published by the Free Software
00018 ** Foundation and appearing in the file LICENSE.GPL included in the
00019 ** packaging of this file.
00020 **
00021 ** Licensees holding valid Qt Enterprise Edition or Qt Professional Edition
00022 ** licenses may use this file in accordance with the Qt Commercial License
00023 ** Agreement provided with the Software.
00024 **
00025 ** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
00026 ** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
00027 **
00028 ** See http://www.trolltech.com/pricing.html or email sales@trolltech.com for
00029 **   information about Qt Commercial License Agreements.
00030 ** See http://www.trolltech.com/qpl/ for QPL licensing information.
00031 ** See http://www.trolltech.com/gpl/ for GPL licensing information.
00032 **
00033 ** Contact info@trolltech.com if any conditions of this licensing are
00034 ** not clear to you.
00035 **
00036 **********************************************************************/
00037 
00038 #ifndef QREGEXP_H
00039 #define QREGEXP_H
00040 
00041 #ifndef QT_H
00042 #include "qstringlist.h"
00043 #endif // QT_H
00044 
00045 #ifndef QT_NO_REGEXP
00046 class QRegExpEngine;
00047 struct QRegExpPrivate;
00048 
00049 class Q_EXPORT QRegExp
00050 {
00051 public:
00052     enum CaretMode { CaretAtZero, CaretAtOffset, CaretWontMatch };
00053 
00054     QRegExp();
00055     QRegExp( const QString& pattern, bool caseSensitive = TRUE,
00056              bool wildcard = FALSE );
00057     QRegExp( const QRegExp& rx );
00058     ~QRegExp();
00059     QRegExp& operator=( const QRegExp& rx );
00060 
00061     bool operator==( const QRegExp& rx ) const;
00062     bool operator!=( const QRegExp& rx ) const { return !operator==( rx ); }
00063 
00064     bool isEmpty() const;
00065     bool isValid() const;
00066     QString pattern() const;
00067     void setPattern( const QString& pattern );
00068     bool caseSensitive() const;
00069     void setCaseSensitive( bool sensitive );
00070 #ifndef QT_NO_REGEXP_WILDCARD
00071     bool wildcard() const;
00072     void setWildcard( bool wildcard );
00073 #endif
00074     bool minimal() const;
00075     void setMinimal( bool minimal );
00076 
00077     bool exactMatch( const QString& str ) const;
00078 #ifndef QT_NO_COMPAT
00079     int match( const QString& str, int index = 0, int *len = 0,
00080                bool indexIsStart = TRUE ) const;
00081 #endif
00082 
00083 #if defined(Q_QDOC)
00084     int search( const QString& str, int offset = 0,
00085                 CaretMode caretMode = CaretAtZero ) const;
00086     int searchRev( const QString& str, int offset = -1,
00087                    CaretMode caretMode = CaretAtZero ) const;
00088 #else
00089     // ### Qt 4.0: reduce these four to two functions
00090     int search( const QString& str, int offset = 0 ) const;
00091     int search( const QString& str, int offset, CaretMode caretMode ) const;
00092     int searchRev( const QString& str, int offset = -1 ) const;
00093     int searchRev( const QString& str, int offset, CaretMode caretMode ) const;
00094 #endif
00095     int matchedLength() const;
00096 #ifndef QT_NO_REGEXP_CAPTURE
00097     int numCaptures() const;
00098     QStringList capturedTexts();
00099     QString cap( int nth = 0 );
00100     int pos( int nth = 0 );
00101     QString errorString();
00102 #endif
00103 
00104     static QString escape( const QString& str );
00105 
00106 private:
00107     void prepareEngine() const;
00108     void prepareEngineForMatch( const QString& str ) const;
00109     void invalidateEngine();
00110 
00111     static int caretIndex( int offset, CaretMode caretMode );
00112 
00113     QRegExpEngine *eng;
00114     QRegExpPrivate *priv;
00115 };
00116 #endif // QT_NO_REGEXP
00117 #endif // QREGEXP_H
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