/****************************************************************************
**
** Copyright (C) 2011 Digia Plc
** All rights reserved.
** For any questions to Digia, please use contact form at http://qt.digia.com
**
** This file is part of the QtCore module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Licensees holding valid Qt Commercial licenses may use this file in
** accordance with the Qt Commercial License Agreement provided with the 
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Digia.  
**
** If you have questions regarding the use of this file, please use
** contact form at http://qt.digia.com
** $QT_END_LICENSE$
** 
** Copyright (c) 2011 Nokia Corporation and/or its subsidiary(-ies).
**
****************************************************************************/

#ifndef QSTRINGMATCHER_H
#define QSTRINGMATCHER_H

#include <QtCore/qstring.h>

QT_BEGIN_HEADER

QT_BEGIN_NAMESPACE

QT_MODULE(Core)

class QStringMatcherPrivate;

class Q_CORE_EXPORT QStringMatcher
{
public:
    QStringMatcher();
    QStringMatcher(const QString &pattern,
                   Qt::CaseSensitivity cs = Qt::CaseSensitive);
    QStringMatcher(const QChar *uc, int len,
                   Qt::CaseSensitivity cs = Qt::CaseSensitive);
    QStringMatcher(const QStringMatcher &other);
    ~QStringMatcher();

    QStringMatcher &operator=(const QStringMatcher &other);

    void setPattern(const QString &pattern);
    void setCaseSensitivity(Qt::CaseSensitivity cs);

    int indexIn(const QString &str, int from = 0) const;
    int indexIn(const QChar *str, int length, int from = 0) const;
    QString pattern() const;
    inline Qt::CaseSensitivity caseSensitivity() const { return q_cs; }

private:
    QStringMatcherPrivate *d_ptr;
    QString q_pattern;
    Qt::CaseSensitivity q_cs;
#ifdef Q_CC_RVCT
// explicitly allow anonymous unions for RVCT to prevent compiler warnings
#  pragma push
#  pragma anon_unions
#endif
    struct Data {
        uchar q_skiptable[256];
        const QChar *uc;
        int len;
    };
    union {
        uint q_data[256];
        Data p;
    };
#ifdef Q_CC_RVCT
#  pragma pop
#endif
};

QT_END_NAMESPACE

QT_END_HEADER

#endif // QSTRINGMATCHER_H
