katie/src/core/tools/qbytearraymatcher.h

/****************************************************************************
**
** Copyright (C) 2015 The Qt Company Ltd.
** Copyright (C) 2016-2019 Ivailo Monev
**
** This file is part of the QtCore module of the Qt Toolkit.
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** $QT_BEGIN_LICENSE:LGPL$
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
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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
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#ifndef QBYTEARRAYMATCHER_H
#define QBYTEARRAYMATCHER_H

#include <QtCore/qbytearray.h>

QT_BEGIN_HEADER

QT_BEGIN_NAMESPACE

class Q_CORE_EXPORT QByteArrayMatcher
{
public:
    QByteArrayMatcher();
    explicit QByteArrayMatcher(const QByteArray &pattern);
    explicit QByteArrayMatcher(const char *pattern, int length);
    QByteArrayMatcher(const QByteArrayMatcher &other);
    ~QByteArrayMatcher();

    QByteArrayMatcher &operator=(const QByteArrayMatcher &other);

    void setPattern(const QByteArray &pattern);

    int indexIn(const QByteArray &ba, int from = 0) const;
    int indexIn(const char *str, int len, int from = 0) const;
    inline QByteArray pattern() const
    {
        if (q_pattern.isNull())
            return QByteArray(reinterpret_cast<const char*>(p.p), p.l);
        return q_pattern;
    }

private:
    QByteArray q_pattern;
    struct Data {
        uchar q_skiptable[256];
        const uchar *p;
        int l;
    };
    Data p;
};

QT_END_NAMESPACE

QT_END_HEADER

#endif // QBYTEARRAYMATCHER_H