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diff --git a/starmath/source/mathmlimport.hxx b/starmath/source/mathmlimport.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 .
+ */
+
+#ifndef INCLUDED_STARMATH_SOURCE_MATHMLIMPORT_HXX
+#define INCLUDED_STARMATH_SOURCE_MATHMLIMPORT_HXX
+
+#include <xmloff/xmlimp.hxx>
+#include <vcl/errcode.hxx>
+
+#include <deque>
+#include <memory>
+
+class SmNode;
+class SfxMedium;
+namespace com::sun::star {
+    namespace beans {
+        class XPropertySet; }
+}
+
+
+typedef std::deque<std::unique_ptr<SmNode>> SmNodeStack;
+
+class SmXMLImportWrapper
+{
+    css::uno::Reference<css::frame::XModel> xModel;
+
+public:
+    explicit SmXMLImportWrapper(css::uno::Reference<css::frame::XModel> const &rRef)
+        : xModel(rRef) {}
+
+    ErrCode Import(SfxMedium &rMedium);
+
+    static ErrCode ReadThroughComponent(
+        const css::uno::Reference< css::io::XInputStream >& xInputStream,
+        const css::uno::Reference< css::lang::XComponent >& xModelComponent,
+        css::uno::Reference< css::uno::XComponentContext > const & rxContext,
+        css::uno::Reference< css::beans::XPropertySet > const & rPropSet,
+        const char* pFilterName,
+        bool bEncrypted );
+
+    static ErrCode ReadThroughComponent(
+        const css::uno::Reference< css::embed::XStorage >& xStorage,
+        const css::uno::Reference< css::lang::XComponent >& xModelComponent,
+        const char* pStreamName,
+        css::uno::Reference< css::uno::XComponentContext > const & rxContext,
+        css::uno::Reference< css::beans::XPropertySet > const & rPropSet,
+        const char* pFilterName );
+};
+
+
+class SmXMLImport : public SvXMLImport
+{
+    std::unique_ptr<SvXMLTokenMap> pColorTokenMap;
+
+        SmNodeStack aNodeStack;
+        bool bSuccess;
+        int nParseDepth;
+        OUString aText;
+
+public:
+    SmXMLImport(
+        const css::uno::Reference< css::uno::XComponentContext >& rContext,
+        OUString const & implementationName, SvXMLImportFlags nImportFlags);
+    virtual ~SmXMLImport() throw () override;
+
+    // XUnoTunnel
+    sal_Int64 SAL_CALL getSomething( const css::uno::Sequence< sal_Int8 >& rId ) override;
+    static const css::uno::Sequence< sal_Int8 > & getUnoTunnelId() throw();
+
+    void SAL_CALL endDocument() override;
+
+    SvXMLImportContext *CreateFastContext( sal_Int32 nElement,
+        const css::uno::Reference<
+        css::xml::sax::XFastAttributeList >& xAttrList ) override;
+
+    const SvXMLTokenMap &GetColorTokenMap();
+
+    SmNodeStack & GetNodeStack()    { return aNodeStack; }
+
+    bool GetSuccess() const              { return bSuccess; }
+    [[nodiscard]] const OUString& GetText() const { return aText; }
+    void SetText(const OUString &rStr) { aText = rStr; }
+
+    virtual void SetViewSettings(const css::uno::Sequence<css::beans::PropertyValue>& aViewProps) override;
+    virtual void SetConfigurationSettings(const css::uno::Sequence<css::beans::PropertyValue>& aViewProps) override;
+
+    void IncParseDepth() { ++nParseDepth; }
+    bool TooDeep() const { return nParseDepth >= 2048; }
+    void DecParseDepth() { --nParseDepth; }
+};
+
+
+enum SmXMLPresScriptEmptyElemTokenMap
+{
+    XML_TOK_MPRESCRIPTS,
+    XML_TOK_NONE
+};
+
+
+
+#endif
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */