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diff --git a/kbabel/datatools/equations/main.cc b/kbabel/datatools/equations/main.cc
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+/* This file is part of KBabel
+   based Copyright (C) 1998, 1999 Torben Weis <weis@kde.org>
+			2002	Stanislav Visnovsky <visnovsky@kde.org>
+
+   This library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public
+   License as published by the Free Software Foundation; either
+   version 2 of the License, or (at your option) any later version.
+
+   This library 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
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public License
+   along with this library; see the file COPYING.LIB.  If not, write to
+   the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.
+
+   In addition, as a special exception, the copyright holders give
+   permission to link the code of this program with any edition of
+   the Qt library by Trolltech AS, Norway (or with modified versions
+   of Qt that use the same license as Qt), and distribute linked
+   combinations including the two.  You must obey the GNU General
+   Public License in all respects for all of the code used other than
+   Qt. If you modify this file, you may extend this exception to
+   your version of the file, but you are not obligated to do so.  If
+   you do not wish to do so, delete this exception statement from
+   your version.
+
+*/
+
+#include <resources.h>
+#include "catalogitem.h"
+#include "catalogsettings.h"
+#include "main.h"
+
+#include <kconfig.h>
+#include <kdebug.h>
+#include <kgenericfactory.h>
+#include <klibloader.h>
+#include <klocale.h>
+#include <kmessagebox.h>
+
+/***************************************************
+ *
+ * Factory
+ *
+ ***************************************************/
+
+K_EXPORT_COMPONENT_FACTORY( kbabel_equationstool, KGenericFactory<EquationsTool> ( "kbabeldatatool" ) )
+
+using namespace KBabel;
+
+EquationsTool::EquationsTool( QObject* parent, const char* name, const QStringList & )
+    : KDataTool( parent, name ), _equation("^[a-zA-Z0-9]+=.+")
+{
+    i18n("what check found errors","equations");
+}
+
+bool EquationsTool::run( const QString& command, void* data, const QString& datatype, const QString& mimetype )
+{
+    if ( command != "validate" )
+    {
+	kdDebug(KBABEL) << "Equations Tool does only accept the command 'validate' and 'shortcut'" << endl;
+	kdDebug(KBABEL) << "   The commands " << command << " is not accepted" << endl;
+	return FALSE;
+    }
+    
+    // Check wether we can accept the data
+    if ( datatype != "CatalogItem" )
+    {
+	kdDebug(KBABEL) << "Equations Tool only accepts datatype CatalogItem" << endl;
+	return FALSE;
+    }
+
+    if ( mimetype != "application/x-kbabel-catalogitem" )
+    {
+	kdDebug(KBABEL) << "Equations Tool only accepts mimetype application/x-kbabel-catalogitem" << endl;
+	return FALSE;
+    }
+    
+    if( command == "validate" )
+    {
+	CatalogItem* item = (CatalogItem*)(data);
+	
+	bool hasError = false;
+
+	if(!item->isUntranslated() && !item->msgid().first().contains('\n')
+	     && item->msgid().first().contains(_equation))
+	{
+    	    int index = item->msgid().first().find('=');
+	    QString left = item->msgid().first().left(index);
+	    index = item->msgstr().first().find('=');
+	    if(left != item->msgstr().first().left(index))
+		hasError = true;
+	}
+	
+	if(hasError)
+	{
+	    item->appendError( "equations" );
+	}
+	else
+	{
+	    item->removeError( "equations" );
+	}
+			
+	return !hasError;
+    }
+    return FALSE;
+}
+
+#include "main.moc"