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/* This file is part of the KDE project
* Copyright (C) 2002 Nadeem Hasan <nhasan@kde.org>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public
* License as published by the Free Software Foundation version 2.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; see the file COPYING. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*
*/
#include "kfile_txt.h"
#include <kgenericfactory.h>
#include <kdebug.h>
#include <qfile.h>
#include <qstringlist.h>
#include <qregexp.h>
typedef KGenericFactory<KTxtPlugin> TxtFactory;
K_EXPORT_COMPONENT_FACTORY(kfile_txt, TxtFactory("kfile_txt"))
KTxtPlugin::KTxtPlugin(QObject *parent, const char *name,
const QStringList &args) : KFilePlugin(parent, name, args)
{
kdDebug(7034) << "Text file meta info plugin\n";
makeMimeTypeInfo( "text/plain" );
}
void KTxtPlugin::makeMimeTypeInfo(const QString& mimeType)
{
KFileMimeTypeInfo* info = addMimeTypeInfo(mimeType);
KFileMimeTypeInfo::GroupInfo* group =
addGroupInfo(info, "General", i18n("General"));
KFileMimeTypeInfo::ItemInfo* item;
item = addItemInfo(group, "Lines", i18n("Lines"), QVariant::Int);
setAttributes(item, KFileMimeTypeInfo::Averaged);
item = addItemInfo(group, "Words", i18n("Words"), QVariant::Int);
setAttributes(item, KFileMimeTypeInfo::Averaged);
item = addItemInfo(group, "Characters", i18n("Characters"), QVariant::ULongLong);
setAttributes(item, KFileMimeTypeInfo::Averaged);
item = addItemInfo(group, "Format", i18n("Format"), QVariant::String);
}
bool KTxtPlugin::readInfo(KFileMetaInfo& info, uint)
{
if ( info.path().isEmpty() ) // remote file
return false;
QFile f(info.path());
if (!f.open(IO_ReadOnly))
return false;
bool firstline = true;
int totLines = 0;
int totWords = 0;
unsigned long long totChars = f.size();
QString fileFormat;
QString line;
bool skipTotals = (totChars > 100*1024); // 100K is the max we read
unsigned int bytesRead = 0;
while (!f.atEnd())
{
f.readLine(line, 4096);
int len = line.length();
// The checks below are necessary to handle embedded NULLs
// QFile::readLine() does not handle them well
bytesRead += len;
if (bytesRead > totChars)
break;
if (len == 0)
break;
if (firstline)
{
firstline = false;
if (line[len-1]=='\n')
{
if (len>=2 && line[len-2]=='\r')
fileFormat = i18n("DOS");
else
fileFormat = i18n("UNIX");
}
else if (line[len-1]=='\r')
fileFormat = i18n("Macintosh");
if (skipTotals)
break;
}
totWords += (QStringList::split(QRegExp("\\s+"), line)).count();
totLines++;
}
if (fileFormat.isEmpty())
fileFormat = i18n("Unknown");
kdDebug(7034) << "Lines: " << totLines << endl;
kdDebug(7034) << "Words: " << totWords << endl;
kdDebug(7034) << "Characters: " << totChars << endl;
kdDebug(7034) << "fileFormat: " << fileFormat << endl;
KFileMetaInfoGroup group = appendGroup(info, "General");
if (!skipTotals)
{
appendItem(group, "Lines", totLines);
appendItem(group, "Words", totWords);
}
appendItem(group, "Characters", totChars);
appendItem(group, "Format", fileFormat);
return true;
}
#include "kfile_txt.moc"
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