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diff --git a/xmlsecurity/inc/xmlsec/saxhelper.hxx b/xmlsecurity/inc/xmlsec/saxhelper.hxx
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+++ b/xmlsecurity/inc/xmlsec/saxhelper.hxx
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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 .
+ */
+
+#pragma once
+
+#include <sal/config.h>
+
+#include <string_view>
+
+#include <libxml/parser.h>
+#include <libxml/tree.h>
+
+#include <rtl/ustring.hxx>
+
+namespace com::sun::star::xml::csax { struct XMLAttribute; }
+namespace com::sun::star::uno { template <typename > class Sequence; }
+
+/** This class represents a SAX handler which simply forwards to
+    the corresponding libxml API and translates parameter if necessary.
+*/
+class SAXHelper final
+{
+    private:
+        xmlParserCtxtPtr m_pParserCtxt ;
+        xmlSAXHandlerPtr m_pSaxHandler ;
+
+    public:
+        SAXHelper( ) ;
+        ~SAXHelper() ;
+
+        xmlNodePtr getCurrentNode() { return m_pParserCtxt->node;}
+        void setCurrentNode(const xmlNodePtr pNode);
+        xmlDocPtr getDocument() { return m_pParserCtxt->myDoc;}
+
+        /// @throws css::xml::sax::SAXException
+        /// @throws css::uno::RuntimeException
+        void startDocument() ;
+
+        /// @throws css::xml::sax::SAXException
+        /// @throws css::uno::RuntimeException
+        void endDocument() ;
+
+        /// @throws css::xml::sax::SAXException
+        /// @throws css::uno::RuntimeException
+        void startElement(
+            std::u16string_view aName ,
+            const css::uno::Sequence<
+                css::xml::csax::XMLAttribute >& aAttributes ) ;
+
+        /// @throws css::xml::sax::SAXException
+        /// @throws css::uno::RuntimeException
+        void endElement( std::u16string_view aName ) ;
+
+        /// @throws css::xml::sax::SAXException
+        /// @throws css::uno::RuntimeException
+        void characters( std::u16string_view aChars ) ;
+
+        /// @throws css::xml::sax::SAXException
+        /// @throws css::uno::RuntimeException
+        void ignorableWhitespace( std::u16string_view aWhitespaces ) ;
+
+        /// @throws css::xml::sax::SAXException
+        /// @throws css::uno::RuntimeException
+        void processingInstruction(
+            std::u16string_view aTarget ,
+            std::u16string_view aData ) ;
+
+} ;
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */