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105 lines
3.3 KiB
C++
105 lines
3.3 KiB
C++
/* This file is part of the KDE libraries
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* Copyright 2007, 2010 David Faure <faure@kde.org>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public License
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* along with this library; see the file COPYING.LIB. If not, write to
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* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#ifndef KMIMEGLOBSFILEPARSER_P_H
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#define KMIMEGLOBSFILEPARSER_P_H
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#include <kdebug.h>
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#include <QtCore/QHash>
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#include <QIODevice>
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#include <QString>
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/**
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* @internal
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*/
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class KMimeGlobsFileParser
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{
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public:
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explicit KMimeGlobsFileParser();
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class AllGlobs;
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// Read globs (patterns) files
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AllGlobs parseGlobs();
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// Separate method, for unit test
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AllGlobs parseGlobs(const QStringList&);
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struct Glob {
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Glob(const QString& mime, int w = 50, const QString& pat = QString(), bool cs = false)
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: weight(w), casesensitive(cs), pattern(pat), mimeType(mime) {}
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int weight;
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bool casesensitive;
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QString pattern;
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QString mimeType;
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};
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class GlobList : public QList<Glob>
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{
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public:
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bool hasPattern(const QString& mime, const QString& pattern) const {
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const_iterator it = begin();
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const const_iterator myend = end();
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for (; it != myend; ++it)
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if ((*it).pattern == pattern && (*it).mimeType == mime)
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return true;
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return false;
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}
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// "noglobs" is very rare occurrence, so it's ok if it's slow
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void removeMime(const QString& mime) {
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QMutableListIterator<Glob> it(*this);
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while (it.hasNext()) {
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if (it.next().mimeType == mime)
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it.remove();
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}
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}
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};
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typedef QHash<QString, QStringList> PatternsMap; // mimetype -> patterns
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/**
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* Result of the globs parsing, as data structures ready for efficient mimetype matching.
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* This contains:
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* 1) a map of fast regular patterns (e.g. *.txt is stored as "txt" in a qhash's key)
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* 2) a linear list of high-weight globs
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* 3) a linear list of low-weight globs
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* The mime-matching algorithms on top of these data structures are in KMimeTypeFactory.
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*/
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class AllGlobs
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{
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public:
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void addGlob(const Glob& glob);
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void removeMime(const QString& mime);
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PatternsMap patternsMap() const; // for KMimeTypeFactory
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GlobList m_highWeightGlobs; // >= 50 patterns
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GlobList m_lowWeightGlobs; // < 50 patterns
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};
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enum Format { OldGlobs, Globs2WithWeight };
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static AllGlobs parseGlobFiles(const QStringList& globFiles, QStringList& parsedFiles);
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static bool parseGlobFile(QIODevice* file, Format format, AllGlobs& globs);
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private:
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AllGlobs m_mimeTypeGlobs;
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};
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#endif /* KMIMEFILEPARSER_H */
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