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diff --git a/sw/source/core/inc/UndoOverwrite.hxx b/sw/source/core/inc/UndoOverwrite.hxx
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+++ b/sw/source/core/inc/UndoOverwrite.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_SW_SOURCE_CORE_INC_UNDOOVERWRITE_HXX
+#define INCLUDED_SW_SOURCE_CORE_INC_UNDOOVERWRITE_HXX
+
+#include <memory>
+#include <rtl/ustring.hxx>
+#include <undobj.hxx>
+
+class SwRedlineSaveDatas;
+class SwTextNode;
+enum class TransliterationFlags;
+namespace utl {
+    class TransliterationWrapper;
+}
+
+class SwUndoOverwrite final : public SwUndo, private SwUndoSaveContent
+{
+    OUString m_aDelStr, m_aInsStr;
+    std::unique_ptr<SwRedlineSaveDatas> m_pRedlSaveData;
+    SwNodeOffset m_nStartNode;
+    sal_Int32 m_nStartContent;
+    bool m_bInsChar : 1;  // no Overwrite, but Insert
+    bool m_bGroup : 1;    // TRUE: is already grouped; evaluated in CanGrouping()
+
+public:
+    SwUndoOverwrite( SwDoc&, SwPosition&, sal_Unicode cIns );
+
+    virtual ~SwUndoOverwrite() override;
+
+    virtual void UndoImpl( ::sw::UndoRedoContext & ) override;
+    virtual void RedoImpl( ::sw::UndoRedoContext & ) override;
+    virtual void RepeatImpl( ::sw::RepeatContext & ) override;
+
+    /**
+       Returns the rewriter of this undo object.
+
+       The rewriter contains the following rule:
+
+           $1 -> '<overwritten text>'
+
+       <overwritten text> is shortened to nUndoStringLength characters.
+
+       @return the rewriter of this undo object
+     */
+    virtual SwRewriter GetRewriter() const override;
+
+    bool CanGrouping( SwDoc&, SwPosition&, sal_Unicode cIns );
+};
+
+struct UndoTransliterate_Data;
+class SwUndoTransliterate final : public SwUndo, public SwUndRng
+{
+    std::vector< std::unique_ptr<UndoTransliterate_Data> >    m_aChanges;
+    TransliterationFlags m_nType;
+
+    void DoTransliterate(SwDoc & rDoc, SwPaM const & rPam);
+
+public:
+    SwUndoTransliterate( const SwPaM& rPam,
+                            const utl::TransliterationWrapper& rTrans );
+
+    virtual ~SwUndoTransliterate() override;
+
+    virtual void UndoImpl( ::sw::UndoRedoContext & ) override;
+    virtual void RedoImpl( ::sw::UndoRedoContext & ) override;
+    virtual void RepeatImpl( ::sw::RepeatContext & ) override;
+
+    void AddChanges( SwTextNode& rTNd, sal_Int32 nStart, sal_Int32 nLen,
+                     css::uno::Sequence <sal_Int32> const & rOffsets );
+    bool HasData() const { return m_aChanges.size() > 0; }
+};
+
+#endif // INCLUDED_SW_SOURCE_CORE_INC_UNDOOVERWRITE_HXX
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */