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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
#ifndef QMIMEMAGICRULE_P_H
#define QMIMEMAGICRULE_P_H
//
// W A R N I N G
// -------------
//
// This file is not part of the Qt API. It exists purely as an
// implementation detail. This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
//
#include <QtCore/private/qglobal_p.h>
QT_REQUIRE_CONFIG(mimetype);
#include <QtCore/qbytearray.h>
#include <QtCore/qscopedpointer.h>
#include <QtCore/qlist.h>
QT_BEGIN_NAMESPACE
class QMimeMagicRule
{
public:
enum Type { Invalid = 0, String, Host16, Host32, Big16, Big32, Little16, Little32, Byte };
QMimeMagicRule(const QString &typeStr, const QByteArray &value, const QString &offsets,
const QByteArray &mask, QString *errorString);
void swap(QMimeMagicRule &other) noexcept
{
qSwap(m_type, other.m_type);
qSwap(m_value, other.m_value);
qSwap(m_startPos, other.m_startPos);
qSwap(m_endPos, other.m_endPos);
qSwap(m_mask, other.m_mask);
qSwap(m_pattern, other.m_pattern);
qSwap(m_number, other.m_number);
qSwap(m_numberMask, other.m_numberMask);
qSwap(m_matchFunction, other.m_matchFunction);
}
bool operator==(const QMimeMagicRule &other) const;
Type type() const { return m_type; }
QByteArray value() const { return m_value; }
int startPos() const { return m_startPos; }
int endPos() const { return m_endPos; }
QByteArray mask() const;
bool isValid() const { return m_matchFunction != nullptr; }
bool matches(const QByteArray &data) const;
QList<QMimeMagicRule> m_subMatches;
static Type type(const QByteArray &type);
static QByteArray typeName(Type type);
static bool matchSubstring(const char *dataPtr, qsizetype dataSize, int rangeStart,
int rangeLength, qsizetype valueLength, const char *valueData,
const char *mask);
private:
Type m_type;
QByteArray m_value;
int m_startPos;
int m_endPos;
QByteArray m_mask;
QByteArray m_pattern;
quint32 m_number;
quint32 m_numberMask;
typedef bool (QMimeMagicRule::*MatchFunction)(const QByteArray &data) const;
MatchFunction m_matchFunction;
private:
// match functions
bool matchString(const QByteArray &data) const;
template <typename T>
bool matchNumber(const QByteArray &data) const;
};
Q_DECLARE_SHARED(QMimeMagicRule)
QT_END_NAMESPACE
#endif // QMIMEMAGICRULE_H
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