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/* ****************************************************************************
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This file is part of KBabel
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Copyright (C) 1999-2000 by Matthias Kiefer <matthias.kiefer@gmx.de>
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2001-2002 by Stanislav Visnovsky <visnovsky@kde.org>
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Copyright (C) 2005,2006 by Nicolas GOUTTE <goutte@kde.org>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program 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
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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In addition, as a special exception, the copyright holders give
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permission to link the code of this program with any edition of
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the Qt library by Trolltech AS, Norway (or with modified versions
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of Qt that use the same license as Qt), and distribute linked
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combinations including the two. You must obey the GNU General
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Public License in all respects for all of the code used other than
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Qt. If you modify this file, you may extend this exception to
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your version of the file, but you are not obligated to do so. If
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you do not wish to do so, delete this exception statement from
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**************************************************************************** */
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#include "gettextexport.h"
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#include <resources.h>
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#include "catalogitem.h"
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#include "catalogsettings.h"
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#include "kbprojectsettings.h"
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#include <qtextcodec.h>
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#include <kapplication.h>
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#include <kgenericfactory.h>
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K_EXPORT_COMPONENT_FACTORY( kbabel_gettextexport, KGenericFactory<GettextExportPlugin> ( "kbabelgettextexportfilter" ) )
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using namespace KBabel;
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GettextExportPlugin::GettextExportPlugin(QObject* parent, const char* name, const QStringList &) :
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CatalogExportPlugin(parent,name), m_wrapWidth( -1 )
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ConversionStatus GettextExportPlugin::save(const QString& localFile , const QString& mimetype, const Catalog* catalog)
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// check, whether we know how to handle the extra data
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if( catalog->importPluginID() != "GNU gettext")
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return UNSUPPORTED_TYPE;
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// we support on the application/x-gettext MIME type
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if( mimetype != "application/x-gettext")
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return UNSUPPORTED_TYPE;
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QFile file(localFile);
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if(file.open(IO_WriteOnly))
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int progressRatio = QMAX(100/ QMAX(catalog->numberOfEntries(),1), 1);
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emit signalResetProgressBar(i18n("saving file"),100);
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QTextStream stream(&file);
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SaveSettings _saveSettings = catalog->saveSettings();
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if(_saveSettings.useOldEncoding && catalog->fileCodec())
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stream.setCodec(catalog->fileCodec());
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switch(_saveSettings.encoding)
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case ProjectSettingsBase::UTF8:
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stream.setCodec(QTextCodec::codecForName("utf-8"));
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case ProjectSettingsBase::UTF16:
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stream.setCodec(QTextCodec::codecForName("utf-16"));
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stream.setCodec(QTextCodec::codecForLocale());
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// only save header if it is not empty
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const QString headerComment( catalog->header().comment() );
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// ### TODO: why is this useful to have a header with an empty msgstr?
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if( !headerComment.isEmpty() || !catalog->header().msgstr().isEmpty() )
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writeComment( stream, headerComment );
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const QString headerMsgid = catalog->header().msgid().first();
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// Gettext PO files should have an empty msgid as header
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if ( !headerMsgid.isEmpty() )
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// ### TODO: perhaps it is grave enough for a user message
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kdWarning() << "Non-empty msgid for the header, assuming empty msgid!" << endl << headerMsgid << "---" << endl;
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// ### FIXME: if it is the header, then the msgid should be empty! (Even if KBabel has made something out of a non-header first entry!)
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stream << "msgid \"\"\n";
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writeKeyword( stream, "msgstr", catalog->header().msgstr().first() );
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for( uint counter = 0; counter < catalog->numberOfEntries() ; counter++ )
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emit signalProgress(counter/progressRatio);
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writeComment( stream, catalog->comment(counter) );
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const QString msgctxt = catalog->msgctxt(counter);
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if (! msgctxt.isEmpty() )
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writeKeyword( stream, "msgctxt", msgctxt );
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writeKeyword( stream, "msgid", catalog->msgid( counter ).first() );
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if( catalog->pluralForm( counter ) == Gettext )
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writeKeyword( stream, "msgid_plural", catalog->msgid( counter ).last() );
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if( catalog->pluralForm(counter) != Gettext)
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writeKeyword( stream, "msgstr", catalog->msgstr( counter ).first() );
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kdDebug(KBABEL) << "Saving gettext plural form" << endl;
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const int forms = catalog->msgstr( counter ).count();
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for ( int i = 0; i < forms; ++i )
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QString keyword ( "msgstr[" );
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keyword += QString::number( i );
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writeKeyword( stream, keyword, *( catalog->msgstr( counter ).at( i ) ) );
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kapp->processEvents(10);
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if( _saveSettings.saveObsolete )
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QValueList<QString>::ConstIterator oit;
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QStringList _obsolete = catalog->catalogExtraData();
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for( oit = _obsolete.begin(); oit != _obsolete.end(); ++oit )
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stream << (*oit) << "\n\n";
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kapp->processEvents(10);
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emit signalProgress(100);
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emit signalClearProgressBar();
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//emit signalError(i18n("Wasn't able to open file %1").arg(filename.ascii()));
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void GettextExportPlugin::writeComment( QTextStream& stream, const QString& comment ) const
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if( !comment.isEmpty() )
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// We must check that each comment line really starts with a #, to avoid syntax errors
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const int newpos = comment.find( '\n', pos, false );
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const QString span ( ( newpos == -1 ) ? comment.mid( pos ) : comment.mid( pos, newpos-pos ) );
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const int len = span.length();
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QString spaces; // Stored leading spaces
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for ( int i = 0 ; i < len ; ++i )
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const QChar& ch = span[ i ];
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stream << spaces << span.mid( i );
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else if ( ch == ' ' || ch == '\t' )
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// We have a leading white space character, so store it temporary
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// Not leading white space and not a # character. so consider that the # character was missing at first position.
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stream << "# " << spaces << span.mid( i );
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void GettextExportPlugin::writeKeyword( QTextStream& stream, const QString& keyword, const QString& text ) const
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if ( text.isEmpty() )
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// Whatever the wrapping mode, an empty line is an empty line
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stream << keyword << " \"\"\n";
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else if ( m_wrapWidth == -1 )
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// Traditional KBabel wrapping
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QStringList list = QStringList::split( '\n', text );
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if ( text.startsWith( "\n" ) )
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list.prepend( QString() );
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list.append( QString() );
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if( list.count() > 1 )
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list.prepend( QString() );
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stream << keyword << " ";
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QStringList::const_iterator it;
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for( it = list.constBegin(); it != list.constEnd(); ++it )
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stream << "\"" << (*it) << "\"\n";
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else if ( ( !m_wrapWidth )
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|| ( m_wrapWidth < 0 ) // Unknown special wrapping, so assume "no wrap" instead
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// No wrapping (like Gettext's --no.wrap or -w0 )
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// we need to remove the \n characters, as they are extra characters
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QString realText( text );
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realText.remove( '\n' );
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stream << keyword << " \"" << realText << "\"\n";
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// Normal wrapping like Gettext's -w parameter with a value bigger than 0
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// From here on, we assume that we have an non-empty text and a positive non-null m_wrapWidth
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// we need to remove the \n characters, as they are extra characters
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QString realText( text );
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realText.remove( '\n' );
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bool needFirstEmptyLine = false;
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if ( realText.find( "\\n" ) != -1 )
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// We have more than one (logical) line, so write the extra empty line
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needFirstEmptyLine = true;
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// We must see if the text would fit in one line, including the keyword, a space and two quote characters.
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const int rest = text.length() + keyword.length() + 3 - m_wrapWidth;
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needFirstEmptyLine = true;
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int availableWidth = m_wrapWidth;
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if ( needFirstEmptyLine )
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stream << keyword << " \"\"\n";
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stream << keyword << " ";
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availableWidth -= keyword.length();
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availableWidth--; // The space after the keyword
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const int spanLength = realText.length();
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for ( int pos = 0; pos < spanLength; )
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availableWidth -= 2; // Count the quote characters
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if ( availableWidth < 2 )
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// Be sure that at least two useful characters are written, even if the wrap width is too small
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const int newlinePos = realText.find ( "\\n", pos );
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if ( ( newlinePos >= 0 ) && ( newlinePos - pos + 2 < availableWidth ) )
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// The newline is near than the maximum available numbers of characters
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availableWidth = newlinePos - pos + 2;
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stream << '\"' << realText.mid( pos, availableWidth ) << "\"\n";
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pos += availableWidth;
added
removed
kbabel/filters/gettext/gettextexport.cpp
