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| |
| #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/private/qglobal_p.h> |
| |
| QT_REQUIRE_CONFIG(mimetype); |
| |
| #include <QtCore/qstringlist.h> |
| #include <QtCore/qhash.h> |
| |
| QT_BEGIN_NAMESPACE |
| |
| struct QMimeGlobMatchResult |
| { |
| void addMatch(const QString &mimeType, int weight, const QString &pattern, int knownSuffixLength = 0); |
| |
| QStringList m_matchingMimeTypes; // only those with highest weight |
| QStringList m_allMatchingMimeTypes; |
| int m_weight = 0; |
| int m_matchingPatternLength = 0; |
| int m_knownSuffixLength = 0; |
| }; |
| |
| 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(s == Qt::CaseInsensitive ? thePattern.toLower() : thePattern), |
| m_mimeType(theMimeType), m_weight(theWeight), m_caseSensitivity(s) |
| { |
| } |
| |
| void swap(QMimeGlobPattern &other) noexcept |
| { |
| 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); |
| void matchingGlobs(const QString &fileName, QMimeGlobMatchResult &result) 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 // QMIMEGLOBPATTERN_P_H |