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diff --git a/sfx2/source/doc/doctemplateslocal.cxx b/sfx2/source/doc/doctemplateslocal.cxx
new file mode 100644
index 000000000..5a55df72a
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+++ b/sfx2/source/doc/doctemplateslocal.cxx
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+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+
+#include <com/sun/star/beans/StringPair.hpp>
+#include <com/sun/star/xml/sax/Parser.hpp>
+#include <com/sun/star/xml/sax/SAXException.hpp>
+#include <com/sun/star/xml/sax/Writer.hpp>
+#include <com/sun/star/xml/sax/XDocumentHandler.hpp>
+
+#include <comphelper/attributelist.hxx>
+#include <rtl/ref.hxx>
+
+#include "doctemplateslocal.hxx"
+
+using namespace ::com::sun::star;
+
+namespace
+{
+
+// Relations info related strings
+constexpr OUStringLiteral g_sGroupListElement(u"groupuinames:template-group-list");
+constexpr OUStringLiteral g_sGroupElement(u"groupuinames:template-group");
+constexpr OUStringLiteral g_sNameAttr(u"groupuinames:name");
+constexpr OUStringLiteral g_sUINameAttr(u"groupuinames:default-ui-name");
+
+}
+
+std::vector< beans::StringPair > DocTemplLocaleHelper::ReadGroupLocalizationSequence( const uno::Reference< io::XInputStream >& xInStream, const uno::Reference< uno::XComponentContext >& xContext )
+{
+    return ReadLocalizationSequence_Impl( xInStream, "groupuinames.xml", xContext );
+}
+
+
+void DocTemplLocaleHelper::WriteGroupLocalizationSequence( const uno::Reference< io::XOutputStream >& xOutStream, const std::vector< beans::StringPair >& aSequence, const uno::Reference< uno::XComponentContext >& xContext )
+{
+    if ( !xOutStream.is() )
+        throw uno::RuntimeException();
+
+    uno::Reference< xml::sax::XWriter > xWriterHandler(
+        xml::sax::Writer::create(xContext) );
+
+    xWriterHandler->setOutputStream( xOutStream );
+
+    static const OUStringLiteral aCDATAString( u"CDATA" );
+    static const OUStringLiteral aWhiteSpace( u" " );
+
+    // write the namespace
+    rtl::Reference<::comphelper::AttributeList> pRootAttrList = new ::comphelper::AttributeList;
+    pRootAttrList->AddAttribute(
+        "xmlns:groupuinames",
+        aCDATAString,
+        "http://openoffice.org/2006/groupuinames" );
+
+    xWriterHandler->startDocument();
+    xWriterHandler->startElement( g_sGroupListElement, pRootAttrList );
+
+    for (const auto & i : aSequence)
+    {
+        rtl::Reference<::comphelper::AttributeList> pAttrList = new ::comphelper::AttributeList;
+        pAttrList->AddAttribute( g_sNameAttr, aCDATAString, i.First );
+        pAttrList->AddAttribute( g_sUINameAttr, aCDATAString, i.Second );
+
+        xWriterHandler->startElement( g_sGroupElement, pAttrList );
+        xWriterHandler->ignorableWhitespace( aWhiteSpace );
+        xWriterHandler->endElement( g_sGroupElement );
+    }
+
+    xWriterHandler->ignorableWhitespace( aWhiteSpace );
+    xWriterHandler->endElement( g_sGroupListElement );
+    xWriterHandler->endDocument();
+}
+
+
+std::vector< beans::StringPair > DocTemplLocaleHelper::ReadLocalizationSequence_Impl( const uno::Reference< io::XInputStream >& xInStream, const OUString& aStringID, const uno::Reference< uno::XComponentContext >& xContext )
+{
+    if ( !xContext.is() || !xInStream.is() )
+        throw uno::RuntimeException();
+
+    uno::Reference< xml::sax::XParser > xParser = xml::sax::Parser::create( xContext );
+
+    rtl::Reference<DocTemplLocaleHelper> pHelper = new DocTemplLocaleHelper();
+    xml::sax::InputSource aParserInput;
+    aParserInput.aInputStream = xInStream;
+    aParserInput.sSystemId = aStringID;
+    xParser->setDocumentHandler( pHelper );
+    xParser->parseStream( aParserInput );
+    xParser->setDocumentHandler( uno::Reference < xml::sax::XDocumentHandler > () );
+
+    return pHelper->GetParsingResult();
+}
+
+
+DocTemplLocaleHelper::DocTemplLocaleHelper()
+{
+}
+
+
+DocTemplLocaleHelper::~DocTemplLocaleHelper()
+{
+}
+
+
+std::vector< beans::StringPair > const & DocTemplLocaleHelper::GetParsingResult() const
+{
+    if ( !m_aElementsSeq.empty() )
+        throw uno::RuntimeException("The parsing has still not finished!");
+
+    return m_aResultSeq;
+}
+
+
+void SAL_CALL DocTemplLocaleHelper::startDocument()
+{
+}
+
+
+void SAL_CALL DocTemplLocaleHelper::endDocument()
+{
+}
+
+
+void SAL_CALL DocTemplLocaleHelper::startElement( const OUString& aName, const uno::Reference< xml::sax::XAttributeList >& xAttribs )
+{
+    if ( aName == g_sGroupListElement )
+    {
+        if ( !m_aElementsSeq.empty() )
+            throw xml::sax::SAXException(); // TODO: this element must be the first level element
+
+        m_aElementsSeq.push_back( aName );
+
+        return; // nothing to do
+    }
+    else if ( aName == g_sGroupElement )
+    {
+        if ( m_aElementsSeq.size() != 1 )
+            throw xml::sax::SAXException(); // TODO: this element must be the second level element
+
+        m_aElementsSeq.push_back( aName );
+
+        const auto nNewEntryNum = m_aResultSeq.size();
+        m_aResultSeq.resize( nNewEntryNum+1 );
+
+        const OUString aNameValue = xAttribs->getValueByName( g_sNameAttr );
+        if ( aNameValue.isEmpty() )
+            throw xml::sax::SAXException(); // TODO: the ID value must present
+
+        const OUString aUINameValue = xAttribs->getValueByName( g_sUINameAttr );
+        if ( aUINameValue.isEmpty() )
+            throw xml::sax::SAXException(); // TODO: the ID value must present
+
+        m_aResultSeq[nNewEntryNum].First = aNameValue;
+        m_aResultSeq[nNewEntryNum].Second = aUINameValue;
+    }
+    else
+    {
+        // accept future extensions
+        if ( m_aElementsSeq.empty() )
+            throw xml::sax::SAXException(); // TODO: the extension element must not be the first level element
+
+        m_aElementsSeq.push_back( aName );
+    }
+}
+
+
+void SAL_CALL DocTemplLocaleHelper::endElement( const OUString& aName )
+{
+    if ( m_aElementsSeq.empty() )
+        throw xml::sax::SAXException(); // TODO: no other end elements expected!
+
+    if ( m_aElementsSeq.back() != aName )
+        throw xml::sax::SAXException(); // TODO: unexpected element ended
+
+    m_aElementsSeq.pop_back();
+}
+
+
+void SAL_CALL DocTemplLocaleHelper::characters( const OUString& /*aChars*/ )
+{
+}
+
+
+void SAL_CALL DocTemplLocaleHelper::ignorableWhitespace( const OUString& /*aWhitespaces*/ )
+{
+}
+
+
+void SAL_CALL DocTemplLocaleHelper::processingInstruction( const OUString& /*aTarget*/, const OUString& /*aData*/ )
+{
+}
+
+
+void SAL_CALL DocTemplLocaleHelper::setDocumentLocator( const uno::Reference< xml::sax::XLocator >& /*xLocator*/ )
+{
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */