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Diffstat (limited to 'kfile-plugins/txt/kfile_txt.cpp')
-rw-r--r-- | kfile-plugins/txt/kfile_txt.cpp | 129 |
1 files changed, 129 insertions, 0 deletions
diff --git a/kfile-plugins/txt/kfile_txt.cpp b/kfile-plugins/txt/kfile_txt.cpp new file mode 100644 index 0000000..02e166c --- /dev/null +++ b/kfile-plugins/txt/kfile_txt.cpp @@ -0,0 +1,129 @@ +/* This file is part of the KDE project + * Copyright (C) 2002 Nadeem Hasan <[email protected]> + * + * 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" |