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/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** 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
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 3 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL3 included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 3 requirements
** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 2.0 or (at your option) the GNU General
** Public license version 3 or any later version approved by the KDE Free
** Qt Foundation. The licenses are as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-2.0.html and
** https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QMIMEGLOBPATTERN_P_H
#define QMIMEGLOBPATTERN_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/qglobal.h>
#ifndef QT_NO_MIMETYPE
#include <QtCore/qstringlist.h>
#include <QtCore/qhash.h>
QT_BEGIN_NAMESPACE
struct QMimeGlobMatchResult
{
QMimeGlobMatchResult()
: m_weight(0), m_matchingPatternLength(0)
{}
void addMatch(const QString &mimeType, int weight, const QString &pattern);
QStringList m_matchingMimeTypes;
int m_weight;
int m_matchingPatternLength;
QString m_foundSuffix;
};
class QMimeGlobPattern
{
public:
static const unsigned MaxWeight = 100;
static const unsigned DefaultWeight = 50;
static const unsigned MinWeight = 1;
explicit QMimeGlobPattern(const QString &thePattern, const QString &theMimeType, unsigned theWeight = DefaultWeight, Qt::CaseSensitivity s = Qt::CaseInsensitive) :
m_pattern(thePattern), m_mimeType(theMimeType), m_weight(theWeight), m_caseSensitivity(s)
{
if (s == Qt::CaseInsensitive) {
m_pattern = m_pattern.toLower();
}
}
void swap(QMimeGlobPattern &other) Q_DECL_NOTHROW
{
qSwap(m_pattern, other.m_pattern);
qSwap(m_mimeType, other.m_mimeType);
qSwap(m_weight, other.m_weight);
qSwap(m_caseSensitivity, other.m_caseSensitivity);
}
bool matchFileName(const QString &filename) const;
inline const QString &pattern() const { return m_pattern; }
inline unsigned weight() const { return m_weight; }
inline const QString &mimeType() const { return m_mimeType; }
inline bool isCaseSensitive() const { return m_caseSensitivity == Qt::CaseSensitive; }
private:
QString m_pattern;
QString m_mimeType;
int m_weight;
Qt::CaseSensitivity m_caseSensitivity;
};
Q_DECLARE_SHARED(QMimeGlobPattern)
class QMimeGlobPatternList : public QList<QMimeGlobPattern>
{
public:
bool hasPattern(const QString &mimeType, const QString &pattern) const
{
const_iterator it = begin();
const const_iterator myend = end();
for (; it != myend; ++it)
if ((*it).pattern() == pattern && (*it).mimeType() == mimeType)
return true;
return false;
}
/*!
"noglobs" is very rare occurrence, so it's ok if it's slow
*/
void removeMimeType(const QString &mimeType)
{
auto isMimeTypeEqual = [&mimeType](const QMimeGlobPattern &pattern) {
return pattern.mimeType() == mimeType;
};
erase(std::remove_if(begin(), end(), isMimeTypeEqual), end());
}
void match(QMimeGlobMatchResult &result, const QString &fileName) const;
};
/*!
Result of the globs parsing, as data structures ready for efficient MIME type matching.
This contains:
1) a map of fast regular patterns (e.g. *.txt is stored as "txt" in a qhash's key)
2) a linear list of high-weight globs
3) a linear list of low-weight globs
*/
class QMimeAllGlobPatterns
{
public:
typedef QHash<QString, QStringList> PatternsMap; // MIME type -> patterns
void addGlob(const QMimeGlobPattern &glob);
void removeMimeType(const QString &mimeType);
QStringList matchingGlobs(const QString &fileName, QString *foundSuffix) const;
void clear();
PatternsMap m_fastPatterns; // example: "doc" -> "application/msword", "text/plain"
QMimeGlobPatternList m_highWeightGlobs;
QMimeGlobPatternList m_lowWeightGlobs; // <= 50, including the non-fast 50 patterns
};
QT_END_NAMESPACE
#endif // QT_NO_MIMETYPE
#endif // QMIMEGLOBPATTERN_P_H
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