KDED

kmimefileparser.cpp

00001 /*  This file is part of the KDE libraries
00002  *  Copyright 2007 David Faure <faure@kde.org>
00003  *
00004  *  This library is free software; you can redistribute it and/or
00005  *  modify it under the terms of the GNU Library General Public
00006  *  License as published by the Free Software Foundation; either
00007  *  version 2 of the License, or (at your option) any later version.
00008  *
00009  *  This library is distributed in the hope that it will be useful,
00010  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
00011  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00012  *  Library General Public License for more details.
00013  *
00014  *  You should have received a copy of the GNU Library General Public License
00015  *  along with this library; see the file COPYING.LIB.  If not, write to
00016  *  the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
00017  *  Boston, MA 02110-1301, USA.
00018  */
00019 
00020 #include "kmimefileparser.h"
00021 #include <kglobal.h>
00022 #include <kmimetype.h>
00023 #include <kstandarddirs.h>
00024 #include <kmimetypefactory.h>
00025 #include <kdebug.h>
00026 #include <QtCore/QTextStream>
00027 #include <QtCore/QFile>
00028 
00029 KMimeFileParser::KMimeFileParser(KMimeTypeFactory* mimeTypeFactory)
00030     : m_mimeTypeFactory(mimeTypeFactory)
00031 {
00032 }
00033 
00034 void KMimeFileParser::parseGlobs()
00035 {
00036     // TODO parse globs2 file instead if it exists.
00037     // This will fix http://bugs.freedesktop.org/show_bug.cgi?id=15436
00038     const QStringList globFiles = KGlobal::dirs()->findAllResources("xdgdata-mime", "globs");
00039     //kDebug() << globFiles;
00040     parseGlobs(globFiles);
00041 }
00042 
00043 void KMimeFileParser::parseGlobs(const QStringList& globFiles)
00044 {
00045     QListIterator<QString> globIter(globFiles);
00046     globIter.toBack();
00047     // At each level, we must be able to override (not just add to) the information that we read at higher levels.
00048     // This is why we don't directly call mimetype->addPattern, nor can we use the same qhash for everything.
00049     QHash<QString, QStringList> mimeTypeGlobs;
00050     while (globIter.hasPrevious()) { // global first, then local
00051         const QString fileName = globIter.previous();
00052         QFile globFile(fileName);
00053         kDebug(7021) << "Now parsing" << fileName;
00054         const QHash<QString, QStringList> thisLevelGlobs = parseGlobFile(&globFile);
00055         if (mimeTypeGlobs.isEmpty())
00056             mimeTypeGlobs = thisLevelGlobs;
00057         else {
00058             // We insert stuff multiple times into the hash, and we only look at the last inserted later on.
00059             mimeTypeGlobs.unite(thisLevelGlobs);
00060         }
00061     }
00062 
00063     const QStringList allMimes = mimeTypeGlobs.uniqueKeys();
00064     Q_FOREACH(const QString& mimeTypeName, allMimes) {
00065         KMimeType::Ptr mimeType = m_mimeTypeFactory->findMimeTypeByName(mimeTypeName);
00066         if (!mimeType) {
00067             kWarning(7012) << "one of glob files in" << globFiles << "refers to unknown mimetype" << mimeTypeName;
00068         } else {
00069             mimeType->setPatterns(mimeTypeGlobs.value(mimeTypeName));
00070         }
00071     }
00072 }
00073 
00074 // uses a QIODevice to make unit tests possible
00075 QHash<QString, QStringList> KMimeFileParser::parseGlobFile(QIODevice* file)
00076 {
00077     QHash<QString, QStringList> globs;
00078     if (!file->open(QIODevice::ReadOnly))
00079         return globs;
00080     QTextStream stream(file);
00081     //stream.setCodec("UTF-8"); // should be all latin1
00082     QString line;
00083     while (!stream.atEnd()) {
00084         line = stream.readLine();
00085         if (line.isEmpty() || line.startsWith('#'))
00086             continue;
00087         const int pos = line.indexOf(':');
00088         if (pos == -1) // syntax error
00089             continue;
00090         const QString mimeTypeName = line.left(pos);
00091         const QString pattern = line.mid(pos+1);
00092         Q_ASSERT(!pattern.isEmpty());
00093         //if (mimeTypeName == "text/plain")
00094         //    kDebug() << "Adding pattern" << pattern << "to mimetype" << mimeTypeName << "from globs file";
00095         QStringList& patterns = globs[mimeTypeName]; // find or create entry
00096         if (!patterns.contains(pattern)) // ### I miss a QStringList::makeUnique or something...
00097             patterns.append(pattern);
00098     }
00099     return globs;
00100 }
KDED

kmimefileparser.cpp

KDED

kdelibs
