/****************************************************************************
**
** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
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** This file is part of the QtCore module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
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** conditions see http://qt.digia.com/licensing.  For further information
** use the contact form at http://qt.digia.com/contact-us.
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** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file.  Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
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** rights.  These rights are described in the Digia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3.0 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file.  Please review the following information to
** ensure the GNU General Public License version 3.0 requirements will be
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****************************************************************************/

#ifndef QSTRINGMATCHER_H
#define QSTRINGMATCHER_H

#include <QtCore/qstring.h>

QT_BEGIN_NAMESPACE


class QStringMatcherPrivate;

class Q_CORE_EXPORT QStringMatcher
{
public:
    QStringMatcher();
    explicit 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

#endif // QSTRINGMATCHER_H