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diff --git a/include/oox/vml/vmlinputstream.hxx b/include/oox/vml/vmlinputstream.hxx
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+++ b/include/oox/vml/vmlinputstream.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_OOX_VML_VMLINPUTSTREAM_HXX
+#define INCLUDED_OOX_VML_VMLINPUTSTREAM_HXX
+
+#include <com/sun/star/io/XInputStream.hpp>
+#include <com/sun/star/uno/Any.hxx>
+#include <com/sun/star/uno/Reference.hxx>
+#include <com/sun/star/uno/Sequence.hxx>
+#include <cppuhelper/implbase.hxx>
+#include <rtl/string.hxx>
+#include <sal/types.h>
+
+namespace com::sun::star {
+    namespace io { class XTextInputStream2; }
+    namespace uno { class XComponentContext; }
+}
+
+namespace oox::vml {
+
+
+/** An input stream class for VML streams, implementing the UNO interface
+    com.sun.star.io.XInputStream needed by the Expat XML parsers.
+
+    This stream reads the data from the input stream passed to the constructor,
+    and parses all XML elements for features unsupported by the current Expat
+    XML parser:
+
+    1)  All elements that have the form '<![inst]>' where 'inst' is any string
+        not containing the characters '<' and '>' are stripped from the input
+        stream.
+
+    2)  Multiple occurrences of the same attribute in an element but the last
+        are removed.
+
+    3)  Line breaks represented by a single <br> element (without matching
+        </br> element) are replaced by a literal LF character.
+ */
+class InputStream final : public ::cppu::WeakImplHelper< css::io::XInputStream >
+{
+public:
+    explicit            InputStream(
+                            const css::uno::Reference< css::uno::XComponentContext >& rxContext,
+                            const css::uno::Reference< css::io::XInputStream >& rxInStrm );
+    virtual             ~InputStream() override;
+
+    virtual sal_Int32 SAL_CALL readBytes( css::uno::Sequence< sal_Int8 >& rData, sal_Int32 nBytesToRead ) override;
+    virtual sal_Int32 SAL_CALL readSomeBytes( css::uno::Sequence< sal_Int8 >& rData, sal_Int32 nMaxBytesToRead ) override;
+    virtual void SAL_CALL skipBytes( sal_Int32 nBytesToSkip ) override;
+    virtual sal_Int32 SAL_CALL available() override;
+    virtual void SAL_CALL closeInput() override;
+
+private:
+    /// @throws css::io::IOException
+    /// @throws css::uno::RuntimeException
+    void                updateBuffer();
+    /// @throws css::io::IOException
+    /// @throws css::uno::RuntimeException
+    OString      readToElementBegin();
+    /// @throws css::io::IOException
+    /// @throws css::uno::RuntimeException
+    OString      readToElementEnd();
+
+private:
+    css::uno::Reference< css::io::XTextInputStream2 >
+                        mxTextStrm;
+    css::uno::Sequence< sal_Unicode > maOpeningBracket;
+    css::uno::Sequence< sal_Unicode > maClosingBracket;
+    OString             maBuffer;
+    sal_Int32           mnBufferPos;
+};
+
+
+} // namespace oox::vml
+
+#endif
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */