Adding upstream version 4:7.4.7.upstream/4%7.4.7 upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
author: Daniel Baumann <daniel.baumann@progress-linux.org> 2024-04-07 09:06:44 +0000
committer: Daniel Baumann <daniel.baumann@progress-linux.org> 2024-04-07 09:06:44 +0000
commit: ed5640d8b587fbcfed7dd7967f3de04b37a76f26 (patch)
tree: 7a5f7c6c9d02226d7471cb3cc8fbbf631b415303 /l10ntools
parent: Initial commit. (diff)
download: libreoffice-ed5640d8b587fbcfed7dd7967f3de04b37a76f26.tar.xz
libreoffice-ed5640d8b587fbcfed7dd7967f3de04b37a76f26.zip
52 files changed, 8272 insertions, 0 deletions
diff --git a/l10ntools/Executable_cfgex.mk b/l10ntools/Executable_cfgex.mk
new file mode 100644
index 000000000..b7441792c
--- /dev/null
+++ b/l10ntools/Executable_cfgex.mk
@@ -0,0 +1,38 @@
+# -*- Mode: makefile-gmake; tab-width: 4; indent-tabs-mode: t -*-
+#
+# 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/.
+#
+
+$(eval $(call gb_Executable_Executable,cfgex))
+
+$(eval $(call gb_Executable_set_include,cfgex,\
+    -I$(SRCDIR)/l10ntools/inc \
+    $$(INCLUDE) \
+))
+
+$(eval $(call gb_Executable_use_libraries,cfgex,\
+    sal \
+))
+
+$(eval $(call gb_Executable_add_scanners,cfgex,\
+    l10ntools/source/cfglex \
+))
+
+$(eval $(call gb_Executable_use_static_libraries,cfgex,\
+    transex \
+))
+
+$(eval $(call gb_Executable_add_exception_objects,cfgex,\
+    l10ntools/source/cfgmerge \
+))
+
+$(eval $(call gb_Executable_use_externals,cfgex,\
+    boost_headers \
+    libxml2 \
+))
+
+# vim:set noet sw=4 ts=4:
diff --git a/l10ntools/Executable_helpex.mk b/l10ntools/Executable_helpex.mk
new file mode 100644
index 000000000..c7f5cce1c
--- /dev/null
+++ b/l10ntools/Executable_helpex.mk
@@ -0,0 +1,40 @@
+# -*- Mode: makefile-gmake; tab-width: 4; indent-tabs-mode: t -*-
+#
+# This file is part of the LibreOffice project.
+#
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+#
+
+$(eval $(call gb_Executable_Executable,helpex))
+
+$(eval $(call gb_Executable_set_include,helpex,\
+    -I$(SRCDIR)/l10ntools/inc \
+    $$(INCLUDE) \
+))
+
+$(eval $(call gb_Executable_use_libraries,helpex,\
+    sal \
+))
+
+$(eval $(call gb_Executable_use_externals,helpex,\
+	expat \
+	boost_headers \
+	icu_headers \
+    libxml2 \
+    icuuc \
+    icui18n \
+))
+
+$(eval $(call gb_Executable_use_static_libraries,helpex,\
+    transex \
+))
+
+$(eval $(call gb_Executable_add_exception_objects,helpex,\
+    l10ntools/source/helpex \
+    l10ntools/source/xmlparse \
+    l10ntools/source/helpmerge \
+))
+
+# vim:set noet sw=4 ts=4:
diff --git a/l10ntools/Executable_idxdict.mk b/l10ntools/Executable_idxdict.mk
new file mode 100644
index 000000000..bdc4353ca
--- /dev/null
+++ b/l10ntools/Executable_idxdict.mk
@@ -0,0 +1,16 @@
+# -*- Mode: makefile-gmake; tab-width: 4; indent-tabs-mode: t -*-
+#
+# This file is part of the LibreOffice project.
+#
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+#
+
+$(eval $(call gb_Executable_Executable,idxdict))
+
+$(eval $(call gb_Executable_add_exception_objects,idxdict,\
+	l10ntools/source/idxdict/idxdict \
+))
+
+# vim: set shiftwidth=4 tabstop=4 noexpandtab:
diff --git a/l10ntools/Executable_localize.mk b/l10ntools/Executable_localize.mk
new file mode 100644
index 000000000..975725ae8
--- /dev/null
+++ b/l10ntools/Executable_localize.mk
@@ -0,0 +1,34 @@
+# -*- Mode: makefile-gmake; tab-width: 4; indent-tabs-mode: t -*-
+#
+# This file is part of the LibreOffice project.
+#
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+#
+
+$(eval $(call gb_Executable_Executable,localize))
+
+$(eval $(call gb_Executable_set_include,localize,\
+    -I$(SRCDIR)/l10ntools/inc \
+    $$(INCLUDE) \
+))
+
+$(eval $(call gb_Executable_use_libraries,localize,\
+    sal \
+))
+
+$(eval $(call gb_Executable_use_static_libraries,localize,\
+    transex \
+))
+
+$(eval $(call gb_Executable_add_exception_objects,localize,\
+    l10ntools/source/localize \
+))
+
+$(eval $(call gb_Executable_use_externals,localize,\
+    boost_headers \
+    libxml2 \
+))
+
+# vim:set noet sw=4 ts=4:
diff --git a/l10ntools/Executable_pocheck.mk b/l10ntools/Executable_pocheck.mk
new file mode 100644
index 000000000..2619ac6f4
--- /dev/null
+++ b/l10ntools/Executable_pocheck.mk
@@ -0,0 +1,34 @@
+# -*- Mode: makefile-gmake; tab-width: 4; indent-tabs-mode: t -*-
+#
+# This file is part of the LibreOffice project.
+#
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+#
+
+$(eval $(call gb_Executable_Executable,pocheck))
+
+$(eval $(call gb_Executable_set_include,pocheck,\
+    -I$(SRCDIR)/l10ntools/inc \
+    $$(INCLUDE) \
+))
+
+$(eval $(call gb_Executable_use_libraries,pocheck,\
+    sal \
+))
+
+$(eval $(call gb_Executable_use_static_libraries,pocheck,\
+    transex \
+))
+
+$(eval $(call gb_Executable_add_exception_objects,pocheck,\
+    l10ntools/source/pocheck \
+))
+
+$(eval $(call gb_Executable_use_externals,pocheck,\
+    boost_headers \
+    libxml2 \
+))
+
+# vim:set noet sw=4 ts=4:
diff --git a/l10ntools/Executable_propex.mk b/l10ntools/Executable_propex.mk
new file mode 100644
index 000000000..c359061fd
--- /dev/null
+++ b/l10ntools/Executable_propex.mk
@@ -0,0 +1,36 @@
+# -*- Mode: makefile-gmake; tab-width: 4; indent-tabs-mode: t -*-
+#
+# This file is part of the LibreOffice project.
+#
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+#
+
+
+$(eval $(call gb_Executable_Executable,propex))
+
+$(eval $(call gb_Executable_set_include,propex,\
+    -I$(SRCDIR)/l10ntools/inc \
+    $$(INCLUDE) \
+))
+
+$(eval $(call gb_Executable_use_libraries,propex,\
+    sal \
+))
+
+$(eval $(call gb_Executable_use_static_libraries,propex,\
+    transex \
+))
+
+$(eval $(call gb_Executable_add_exception_objects,propex,\
+    l10ntools/source/propmerge \
+    l10ntools/source/propex \
+))
+
+$(eval $(call gb_Executable_use_externals,propex,\
+    boost_headers \
+    libxml2 \
+))
+
+# vim: set noet sw=4 ts=4:
diff --git a/l10ntools/Executable_treex.mk b/l10ntools/Executable_treex.mk
new file mode 100644
index 000000000..976dc1398
--- /dev/null
+++ b/l10ntools/Executable_treex.mk
@@ -0,0 +1,36 @@
+# -*- Mode: makefile-gmake; tab-width: 4; indent-tabs-mode: t -*-
+#
+# This file is part of the LibreOffice project.
+#
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+#
+
+
+$(eval $(call gb_Executable_Executable,treex))
+
+$(eval $(call gb_Executable_set_include,treex,\
+    -I$(SRCDIR)/l10ntools/inc \
+    $$(INCLUDE) \
+))
+
+$(eval $(call gb_Executable_use_libraries,treex,\
+    sal \
+))
+
+$(eval $(call gb_Executable_use_static_libraries,treex,\
+    transex \
+))
+
+$(eval $(call gb_Executable_add_exception_objects,treex,\
+    l10ntools/source/treemerge \
+    l10ntools/source/treex \
+))
+
+$(eval $(call gb_Executable_use_externals,treex,\
+    boost_headers \
+    libxml2 \
+))
+
+# vim: set noet sw=4 ts=4:
diff --git a/l10ntools/Executable_ulfex.mk b/l10ntools/Executable_ulfex.mk
new file mode 100644
index 000000000..dd4c3181b
--- /dev/null
+++ b/l10ntools/Executable_ulfex.mk
@@ -0,0 +1,35 @@
+# -*- Mode: makefile-gmake; tab-width: 4; indent-tabs-mode: t -*-
+#
+# This file is part of the LibreOffice project.
+#
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+#
+
+$(eval $(call gb_Executable_Executable,ulfex))
+
+$(eval $(call gb_Executable_set_include,ulfex,\
+    -I$(SRCDIR)/l10ntools/inc \
+    $$(INCLUDE) \
+))
+
+$(eval $(call gb_Executable_use_libraries,ulfex,\
+    sal \
+))
+
+$(eval $(call gb_Executable_use_static_libraries,ulfex,\
+    transex \
+))
+
+$(eval $(call gb_Executable_add_exception_objects,ulfex,\
+    l10ntools/source/lngmerge \
+    l10ntools/source/lngex \
+))
+
+$(eval $(call gb_Executable_use_externals,ulfex,\
+    boost_headers \
+    libxml2 \
+))
+
+# vim:set noet sw=4 ts=4:
diff --git a/l10ntools/Executable_xrmex.mk b/l10ntools/Executable_xrmex.mk
new file mode 100644
index 000000000..109198dc2
--- /dev/null
+++ b/l10ntools/Executable_xrmex.mk
@@ -0,0 +1,41 @@
+# -*- Mode: makefile-gmake; tab-width: 4; indent-tabs-mode: t -*-
+#
+# This file is part of the LibreOffice project.
+#
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+#
+
+$(eval $(call gb_Executable_Executable,xrmex))
+
+$(eval $(call gb_Executable_set_include,xrmex,\
+    -I$(SRCDIR)/l10ntools/inc \
+    $$(INCLUDE) \
+))
+
+$(eval $(call gb_Executable_use_libraries,xrmex,\
+    sal \
+))
+
+$(eval $(call gb_Executable_add_scanners,xrmex,\
+    l10ntools/source/xrmlex \
+))
+
+$(eval $(call gb_Executable_use_static_libraries,xrmex,\
+    transex \
+))
+
+$(eval $(call gb_Executable_add_exception_objects,xrmex,\
+    l10ntools/source/xrmmerge \
+))
+
+$(eval $(call gb_Executable_use_externals,xrmex,\
+    boost_headers \
+    libxml2 \
+    icuuc \
+    icui18n \
+    icu_headers \
+))
+
+# vim:set noet sw=4 ts=4:
diff --git a/l10ntools/IwyuFilter_l10ntools.yaml b/l10ntools/IwyuFilter_l10ntools.yaml
new file mode 100644
index 000000000..171e54ae6
--- /dev/null
+++ b/l10ntools/IwyuFilter_l10ntools.yaml
@@ -0,0 +1,9 @@
+---
+assumeFilename: l10ntools/source/helpmerge.cxx
+excludelist:
+    l10ntools/source/idxdict/idxdict.cxx:
+    # Actually needed
+    - fstream
+    l10ntools/source/xmlparse.cxx:
+    # Actually needed
+    - fstream
diff --git a/l10ntools/Makefile b/l10ntools/Makefile
new file mode 100644
index 000000000..0997e6284
--- /dev/null
+++ b/l10ntools/Makefile
@@ -0,0 +1,14 @@
+# -*- Mode: makefile-gmake; tab-width: 4; indent-tabs-mode: t -*-
+#
+# This file is part of the LibreOffice project.
+#
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+#
+
+module_directory:=$(dir $(realpath $(firstword $(MAKEFILE_LIST))))
+
+include $(module_directory)/../solenv/gbuild/partial_build.mk
+
+# vim: set noet sw=4 ts=4:
diff --git a/l10ntools/Module_l10ntools.mk b/l10ntools/Module_l10ntools.mk
new file mode 100644
index 000000000..3806c7d6f
--- /dev/null
+++ b/l10ntools/Module_l10ntools.mk
@@ -0,0 +1,25 @@
+# -*- Mode: makefile-gmake; tab-width: 4; indent-tabs-mode: t -*-
+#
+# This file is part of the LibreOffice project.
+#
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+#
+
+$(eval $(call gb_Module_Module,l10ntools))
+
+$(eval $(call gb_Module_add_targets_for_build,l10ntools,\
+    Executable_helpex \
+    Executable_idxdict \
+    Executable_ulfex \
+    Executable_cfgex \
+    Executable_xrmex \
+    Executable_localize \
+    Executable_pocheck \
+    Executable_propex \
+    Executable_treex \
+    StaticLibrary_transex \
+))
+
+# vim:set noet sw=4 ts=4:
diff --git a/l10ntools/README.md b/l10ntools/README.md
new file mode 100644
index 000000000..b55377cf4
--- /dev/null
+++ b/l10ntools/README.md
@@ -0,0 +1,5 @@
+# Localization (l10n) Tools
+
+`l10ntools` (l10n = localization) contains a number of tools that extract
+translatable content from source code and merge translations back to
+source code during the build.
diff --git a/l10ntools/StaticLibrary_transex.mk b/l10ntools/StaticLibrary_transex.mk
new file mode 100644
index 000000000..57285da94
--- /dev/null
+++ b/l10ntools/StaticLibrary_transex.mk
@@ -0,0 +1,30 @@
+# -*- Mode: makefile-gmake; tab-width: 4; indent-tabs-mode: t -*-
+#
+#
+# This file is part of the LibreOffice project.
+#
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+#
+
+$(eval $(call gb_StaticLibrary_StaticLibrary,transex))
+
+$(eval $(call gb_StaticLibrary_set_include,transex,\
+    -I$(SRCDIR)/l10ntools/inc \
+    $$(INCLUDE) \
+))
+
+$(eval $(call gb_StaticLibrary_use_externals,transex,\
+	boost_headers \
+	libxml2 \
+))
+
+$(eval $(call gb_StaticLibrary_add_exception_objects,transex,\
+    l10ntools/source/helper \
+    l10ntools/source/common \
+    l10ntools/source/merge \
+    l10ntools/source/po \
+))
+
+# vim: set noet sw=4 ts=4:
diff --git a/l10ntools/inc/cfglex.hxx b/l10ntools/inc/cfglex.hxx
new file mode 100644
index 000000000..af0324f64
--- /dev/null
+++ b/l10ntools/inc/cfglex.hxx
@@ -0,0 +1,34 @@
+/* -*- 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_L10NTOOLS_INC_CFGLEX_HXX
+#define INCLUDED_L10NTOOLS_INC_CFGLEX_HXX
+
+#include <sal/config.h>
+
+#include <stdio.h>
+
+extern "C" void workOnTokenSet(int, char*);
+extern "C" FILE* init(int, char**);
+
+void yyerror(char const*);
+
+#endif
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/l10ntools/inc/cfgmerge.hxx b/l10ntools/inc/cfgmerge.hxx
new file mode 100644
index 000000000..12e5cace1
--- /dev/null
+++ b/l10ntools/inc/cfgmerge.hxx
@@ -0,0 +1,181 @@
+/* -*- 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_L10NTOOLS_INC_CFGMERGE_HXX
+#define INCLUDED_L10NTOOLS_INC_CFGMERGE_HXX
+
+#include <sal/config.h>
+
+#include <fstream>
+#include <unordered_map>
+#include <memory>
+#include <vector>
+#include "po.hxx"
+#include "export.hxx"
+
+typedef std::unordered_map<OString, OString> OStringHashMap;
+
+
+
+
+class CfgStackData
+{
+friend class CfgParser;
+friend class CfgExport;
+friend class CfgMerge;
+private:
+    OString sTagType;
+    OString sIdentifier;
+
+    OString sResTyp;
+
+    OString sTextTag;
+    OString sEndTextTag;
+
+    OStringHashMap sText;
+public:
+    CfgStackData(const OString &rTag, const OString &rId)
+        : sTagType( rTag ), sIdentifier( rId )
+    {}
+
+    const OString &GetTagType() const { return sTagType; }
+    const OString &GetIdentifier() const { return sIdentifier; }
+
+};
+
+
+
+
+class CfgStack
+{
+private:
+    std::vector< CfgStackData* > maList;
+
+public:
+    CfgStack() {}
+    ~CfgStack();
+
+    CfgStackData *Push(const OString &rTag, const OString &rId);
+    void Pop()
+    {
+        if (!maList.empty())
+        {
+            delete maList.back();
+            maList.pop_back();
+        }
+    }
+
+    CfgStackData *GetStackData();
+
+    OString GetAccessPath( size_t nPos );
+
+    size_t size() const { return maList.size(); }
+};
+
+/// Parser for *.xcu files
+class CfgParser
+{
+protected:
+    OString sCurrentResTyp;
+    OString sCurrentIsoLang;
+    OString sCurrentText;
+
+    OString sLastWhitespace;
+
+    CfgStack aStack;
+    CfgStackData *pStackData;
+
+    bool bLocalize;
+
+    virtual void WorkOnText(
+        OString &rText,
+        const OString &rLangIndex )=0;
+
+    virtual void WorkOnResourceEnd()=0;
+
+    virtual void Output(const OString & rOutput)=0;
+
+private:
+    void ExecuteAnalyzedToken( int nToken, char *pToken );
+    void AddText(
+        OString &rText,
+        const OString &rIsoLang,
+        const OString &rResTyp );
+
+    static bool IsTokenClosed(std::string_view rToken);
+
+public:
+    CfgParser();
+    virtual ~CfgParser();
+
+    void Execute( int nToken, char * pToken );
+};
+
+/// Export strings from *.xcu files
+class CfgExport : public CfgParser
+{
+private:
+    OString sPath;
+    PoOfstream pOutputStream;
+
+protected:
+    virtual void WorkOnText(
+        OString &rText,
+        const OString &rIsoLang
+        ) override;
+
+    void WorkOnResourceEnd() override;
+    void Output(const OString& rOutput) override;
+public:
+    CfgExport(
+        const OString &rOutputFile,
+        const OString &rFilePath
+    );
+    virtual ~CfgExport() override;
+};
+
+/// Merge strings to *.xcu files
+class CfgMerge : public CfgParser
+{
+private:
+    std::unique_ptr<MergeDataFile> pMergeDataFile;
+    std::vector<OString> aLanguages;
+    std::unique_ptr<ResData> pResData;
+
+    OString sFilename;
+    bool bEnglish;
+
+    std::ofstream pOutputStream;
+
+protected:
+    virtual void WorkOnText(OString &rText, const OString &rLangIndex) override;
+
+    void WorkOnResourceEnd() override;
+
+    void Output(const OString& rOutput) override;
+public:
+    CfgMerge(
+        const OString &rMergeSource, const OString &rOutputFile,
+        const OString &rFilename, const OString &rLanguage );
+    virtual ~CfgMerge() override;
+};
+
+#endif
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/l10ntools/inc/common.hxx b/l10ntools/inc/common.hxx
new file mode 100644
index 000000000..ec5ed0c19
--- /dev/null
+++ b/l10ntools/inc/common.hxx
@@ -0,0 +1,59 @@
+/* -*- 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/.
+ */
+
+// Methods used by all of executables
+
+#ifndef INCLUDED_L10NTOOLS_INC_COMMON_HXX
+#define INCLUDED_L10NTOOLS_INC_COMMON_HXX
+
+#include <sal/config.h>
+
+#include <string_view>
+
+#include <rtl/string.hxx>
+#include "po.hxx"
+
+namespace common {
+
+/// Result type of handleArguments()
+struct HandledArgs
+{
+    OString m_sInputFile;
+    OString m_sOutputFile;
+    OString m_sMergeSrc;
+    OString m_sLanguage;
+    bool m_bMergeMode;
+    bool m_bUTF8BOM;
+    HandledArgs()
+        : m_sInputFile( OString() )
+        , m_sOutputFile( OString() )
+        , m_sMergeSrc( OString() )
+        , m_sLanguage( OString() )
+        , m_bMergeMode( false )
+        , m_bUTF8BOM( false )
+    {}
+};
+
+/// Handle command line parameters
+bool handleArguments(int argc, char * argv[], HandledArgs& o_aHandledArgs);
+
+/// Write out a help about usage
+void writeUsage(const OString& rName, const OString& rFileType);
+
+/// Write out a PoEntry with attention to exceptions
+void writePoEntry(
+    const OString& rExecutable, PoOfstream& rPoStream, const OString& rSourceFile,
+    std::string_view rResType, const OString& rGroupId, const OString& rLocalId,
+    const OString& rHelpText, const OString& rText, const PoEntry::TYPE eType = PoEntry::TTEXT );
+
+}
+
+#endif
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/l10ntools/inc/export.hxx b/l10ntools/inc/export.hxx
new file mode 100644
index 000000000..3f46c552f
--- /dev/null
+++ b/l10ntools/inc/export.hxx
@@ -0,0 +1,144 @@
+/* -*- 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_L10NTOOLS_INC_EXPORT_HXX
+#define INCLUDED_L10NTOOLS_INC_EXPORT_HXX
+
+#include <sal/config.h>
+
+#include <rtl/string.hxx>
+
+#include <set>
+#include <unordered_map>
+#include <memory>
+#include <vector>
+#include <string_view>
+
+#ifdef _WIN32
+#include <direct.h>
+#endif
+
+#define NO_TRANSLATE_ISO        "x-no-translate"
+
+class MergeEntrys;
+
+typedef std::unordered_map<OString, OString>
+    OStringHashMap;
+
+typedef std::unordered_map<OString, bool>
+    OStringBoolHashMap;
+
+#define SOURCE_LANGUAGE "en-US"
+#define X_COMMENT "x-comment"
+
+
+
+
+/// Purpose: holds mandatory data to export a single res
+class ResData
+{
+public:
+    ResData( const OString &rGId );
+    ResData( const OString &rGId , const OString &rFilename );
+
+    OString sResTyp;
+    OString sId;
+    OString sGId;
+    OString sFilename;
+
+    OStringHashMap sText;
+};
+
+
+
+
+class ParserQueue;
+
+
+
+/// Purpose: holds information of data to merge
+class MergeEntrys
+{
+friend class MergeDataFile;
+private:
+    OStringHashMap sText;
+    OStringBoolHashMap bTextFirst;
+    OStringHashMap sQuickHelpText;
+    OStringBoolHashMap bQuickHelpTextFirst;
+    OStringHashMap sTitle;
+    OStringBoolHashMap bTitleFirst;
+
+public:
+    MergeEntrys(){};
+    void InsertEntry(const OString &rId, const OString &rText,
+        const OString &rQuickHelpText, const OString &rTitle)
+    {
+
+        sText[ rId ] = rText;
+        bTextFirst[ rId ] = true;
+        sQuickHelpText[ rId ] = rQuickHelpText;
+        bQuickHelpTextFirst[ rId ] = true;
+        sTitle[ rId ] = rTitle;
+        bTitleFirst[ rId ] = true;
+    }
+    bool GetText( OString &rReturn, const OString &nLangIndex, bool bDel = false );
+
+    /**
+      Generate QTZ string with ResData
+      For executable which works one language and without PO files.
+    */
+    static OString GetQTZText(const ResData& rResData, std::string_view rOrigText);
+
+};
+
+
+
+/// Purpose: holds information of data to merge, read from PO file
+class MergeDataFile
+{
+    private:
+        std::unordered_map<OString, std::unique_ptr<MergeEntrys>> aMap;
+        std::set<OString> aLanguageSet;
+
+        MergeEntrys *GetMergeData( ResData *pResData , bool bCaseSensitive = false );
+        void InsertEntry(std::string_view rTYP, std::string_view rGID,
+            std::string_view rLID, const OString &nLang,
+            const OString &rTEXT, const OString &rQHTEXT,
+            const OString &rTITLE, std::string_view sFilename,
+            bool bFirstLang, bool bCaseSensitive);
+    public:
+        explicit MergeDataFile(
+            const OString &rFileName, std::string_view rFile,
+            bool bCaseSensitive, bool bWithQtz = true );
+        ~MergeDataFile();
+
+
+        std::vector<OString> GetLanguages() const;
+
+        MergeEntrys *GetMergeEntrys( ResData *pResData );
+        MergeEntrys *GetMergeEntrysCaseSensitive( ResData *pResData );
+
+        static OString CreateKey(std::string_view rTYP, std::string_view rGID,
+            std::string_view rLID, std::string_view rFilename, bool bCaseSensitive);
+};
+
+
+#endif // INCLUDED_L10NTOOLS_INC_EXPORT_HXX
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/l10ntools/inc/helper.hxx b/l10ntools/inc/helper.hxx
new file mode 100644
index 000000000..c1347db04
--- /dev/null
+++ b/l10ntools/inc/helper.hxx
@@ -0,0 +1,48 @@
+/* -*- 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/.
+ */
+
+// Helper string methods
+
+#ifndef INCLUDED_L10NTOOLS_INC_HELPER_HXX
+#define INCLUDED_L10NTOOLS_INC_HELPER_HXX
+
+#include <sal/config.h>
+
+#include <string_view>
+
+#include <libxml/xmlstring.h>
+
+#include <rtl/string.hxx>
+
+
+namespace helper {
+
+/// Escape all given character in the text
+OString escapeAll(
+    std::string_view rText, std::string_view rUnEscaped, std::string_view rEscaped );
+/// Unescape all given character in the text
+OString unEscapeAll(
+    std::string_view rText, std::string_view rEscaped, std::string_view rUnEscaped  );
+
+/// Convert special characters to XML entity references
+OString QuotHTML( std::string_view rString );
+/// Convert XML entity references to single characters
+OString UnQuotHTML( std::string_view rString );
+
+/// Check whether text is a valid XML expression
+bool isWellFormedXML( std::string_view text );
+
+/// Convert xmlChar* to OString
+OString xmlStrToOString( const xmlChar* pString );
+
+}
+
+#endif
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/l10ntools/inc/helpmerge.hxx b/l10ntools/inc/helpmerge.hxx
new file mode 100644
index 000000000..9420f2356
--- /dev/null
+++ b/l10ntools/inc/helpmerge.hxx
@@ -0,0 +1,66 @@
+/* -*- 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_L10NTOOLS_INC_HELPMERGE_HXX
+#define INCLUDED_L10NTOOLS_INC_HELPMERGE_HXX
+
+#include <sal/config.h>
+
+#include <string_view>
+
+#include "export.hxx"
+#include "xmlparse.hxx"
+
+#include <rtl/string.hxx>
+
+/// This Class is responsible for extracting/merging OpenOffice XML Helpfiles
+class HelpParser
+{
+private:
+    OString sHelpFile;
+
+#if OSL_DEBUG_LEVEL > 2
+    /// Debugmethod, prints the content of the map to stdout
+    static void Dump(LangHashMap* rElem_in , const OString & sKey_in);
+
+    /// Debugmethod, prints the content of the map to stdout
+    static void Dump(XMLHashMap* rElem_in);
+#endif
+
+public:
+    HelpParser( const OString &rHelpFile );
+
+/// Method append a PO file with the content of a parsed XML file
+/// @PRECOND rHelpFile is valid
+    static bool CreatePO( const OString &rPOFile_in, const OString &sHelpFile,
+                          XMLFile *pXmlFile, std::string_view rGsi1 );
+
+/// Method merges the String into XMLfile, which must point to an existing file.
+    bool Merge( const OString &rDestinationFile_in ,
+        const OString& sLanguage , MergeDataFile* pMergeDataFile );
+
+private:
+    void MergeSingleFile( XMLFile* file , MergeDataFile* pMergeDataFile , const OString& sLanguage , OString const & sPath );
+
+    static void ProcessHelp( LangHashMap* aLangHM , const OString& sCur , ResData *pResData , MergeDataFile* pMergeDataFile );
+};
+
+#endif // INCLUDED_L10NTOOLS_INC_HELPMERGE_HXX
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/l10ntools/inc/lngmerge.hxx b/l10ntools/inc/lngmerge.hxx
new file mode 100644
index 000000000..7b60e4ff2
--- /dev/null
+++ b/l10ntools/inc/lngmerge.hxx
@@ -0,0 +1,63 @@
+/* -*- 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_L10NTOOLS_INC_LNGMERGE_HXX
+#define INCLUDED_L10NTOOLS_INC_LNGMERGE_HXX
+
+#include <sal/config.h>
+
+#include <vector>
+
+#include "export.hxx"
+#include "po.hxx"
+
+#define LNG_OK              0x0000
+#define LNG_COULD_NOT_OPEN  0x0001
+
+
+/**
+  Class for localization of *.ulf files
+
+  Parse *.ulf files, extract translatable strings
+  and merge translated strings.
+*/
+class LngParser
+{
+private:
+    std::vector<OString> mvLines;
+    OString sSource;
+    std::vector<OString> aLanguages;
+
+    static bool isNextGroup(OString &sGroup_out, std::string_view sLine_in);
+    static void ReadLine(std::string_view rLine_in,
+        OStringHashMap &rText_inout);
+    static void WritePO(PoOfstream &aPOStream, OStringHashMap &rText_inout,
+        const OString &rActFileName, const OString &rID);
+public:
+    LngParser(const OString &rLngFile);
+    ~LngParser();
+
+    void CreatePO( const OString &rPOFile );
+    void Merge(const OString &rPOFile, const OString &rDestinationFile,
+         std::string_view rLanguage );
+};
+
+#endif // INCLUDED_L10NTOOLS_INC_LNGMERGE_HXX
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/l10ntools/inc/po.hxx b/l10ntools/inc/po.hxx
new file mode 100644
index 000000000..9b33d2b77
--- /dev/null
+++ b/l10ntools/inc/po.hxx
@@ -0,0 +1,152 @@
+/* -*- 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/.
+ */
+
+#ifndef INCLUDED_L10NTOOLS_INC_PO_HXX
+#define INCLUDED_L10NTOOLS_INC_PO_HXX
+
+#include <fstream>
+#include <memory>
+#include <string_view>
+
+#include <rtl/string.hxx>
+
+class PoOfstream;
+class PoIfstream;
+class GenPoEntry;
+
+
+/** Interface to use po entries in localization
+
+    PoEntry based on GenPoEntry class which stores attributes
+    of general po entry(see po.cxx). It makes easy to get/set
+    all information needed to localize one english(US) string.
+    It contains some basic checkings and some string
+    transformations between po string and string used by
+    localization tools.
+*/
+class PoEntry
+{
+private:
+
+    std::unique_ptr<GenPoEntry> m_pGenPo;
+    bool m_bIsInitialized;
+
+public:
+
+    friend class PoOfstream;
+    friend class PoIfstream;
+
+    enum TYPE { TTEXT, TQUICKHELPTEXT, TTITLE };
+    enum Exception { NOSOURCFILE, NORESTYPE, NOGROUPID, NOSTRING, WRONGHELPTEXT };
+
+                    PoEntry();
+                    PoEntry( std::string_view rSourceFile, std::string_view rResType, std::string_view rGroupId,
+                             std::string_view rLocalId, std::string_view rHelpText, const OString& rText,
+                             const TYPE eType );
+                    ~PoEntry();
+
+                    PoEntry( const PoEntry& rPo );
+    PoEntry&        operator=( const PoEntry& rPo );
+    PoEntry&        operator=( PoEntry&& rPo ) noexcept;
+
+    OString const &  getSourceFile() const;      ///< Get name of file from which entry is extracted
+    OString         getGroupId() const;
+    OString         getLocalId() const;
+    OString         getResourceType() const;    ///< Get the type of component from which entry is extracted
+    TYPE            getType() const;            ///< Get the type of entry
+    OString const & getMsgCtxt() const;
+    OString const & getMsgId() const;
+    OString const & getMsgStr() const;
+    bool            isFuzzy() const;
+
+    /// Check whether po-s belong to the same localization component
+    static bool     IsInSameComp(const PoEntry& rPo1,const PoEntry& rPo2);
+    static OString  genKeyId(const OString& rGenerator);
+
+};
+
+/** Interface to work with header of po/pot files
+
+    This class stores information which is in header of
+    a po file. It's main function to generate header to
+    template po files(pot).
+*/
+class PoHeader
+{
+private:
+
+    std::unique_ptr<GenPoEntry> m_pGenPo;
+    bool m_bIsInitialized;
+
+public:
+
+    friend class PoOfstream;
+    friend class PoIfstream;
+
+                    PoHeader( std::string_view rExtSrc ); ///< Template Constructor
+                    PoHeader( std::string_view rExtSrc, const OString& rPoHeaderMsgStr );
+                    ~PoHeader();
+                    PoHeader(const PoHeader&) = delete;
+    PoHeader&       operator=(const PoHeader&) = delete;
+};
+
+/// Interface to write po entry to files as output streams
+class PoOfstream
+{
+private:
+
+    std::ofstream   m_aOutPut;
+    bool            m_bIsAfterHeader;
+
+public:
+
+    enum OpenMode { TRUNC, APP };
+
+            PoOfstream();
+            PoOfstream(const OString& rFileName, OpenMode aMode );
+            ~PoOfstream();
+            PoOfstream(const PoOfstream&) = delete;
+    PoOfstream& operator=(const PoOfstream&) = delete;
+    bool    isOpen() const  { return m_aOutPut.is_open(); }
+
+    void    open(const OString& rFileName, OpenMode aMode = TRUNC );
+    void    close();
+    void    writeHeader(const PoHeader& rHeader);
+    void    writeEntry(const PoEntry& rPo);
+};
+
+/// Interface to read po entry from files as input streams
+class PoIfstream
+{
+private:
+
+    std::ifstream   m_aInPut;
+    bool            m_bEof;
+
+public:
+
+    class Exception final : public std::exception { };
+
+            PoIfstream();
+            PoIfstream( const OString& rFileName );
+            ~PoIfstream();
+            PoIfstream(const PoIfstream&) = delete;
+    PoIfstream& operator=(const PoIfstream&) = delete;
+    bool    isOpen() const  { return m_aInPut.is_open(); }
+    bool    eof() const     { return m_bEof; }
+
+    void    open(const OString& rFileName);
+    void    open(const OString& rFileName, OString& sPoHeader);
+    void    close();
+    void    readEntry(PoEntry& rPo);
+};
+
+#endif // INCLUDED_L10NTOOLS_INC_PO_HXX
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/l10ntools/inc/propmerge.hxx b/l10ntools/inc/propmerge.hxx
new file mode 100644
index 000000000..7e9eb594d
--- /dev/null
+++ b/l10ntools/inc/propmerge.hxx
@@ -0,0 +1,43 @@
+/* -*- 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/.
+ */
+
+#ifndef INCLUDED_L10NTOOLS_INC_PROPMERGE_HXX
+#define INCLUDED_L10NTOOLS_INC_PROPMERGE_HXX
+
+#include <rtl/string.hxx>
+#include <vector>
+
+/**
+  Class for localization of *.properties files
+
+  Parse *.properties files, extract translatable strings
+  and merge translated strings.
+*/
+
+class PropParser
+{
+private:
+    std::vector<OString> m_vLines;
+    OString m_sSource;
+    OString m_sLang;
+    bool m_bIsInitialized;
+
+public:
+    PropParser(
+        const OString& rInputFile, const OString& rLang,
+        const bool bMergeMode );
+    ~PropParser();
+
+    bool isInitialized() const { return m_bIsInitialized; }
+    void Extract( const OString& rPOFile );
+    void Merge( const OString &rMergeSrc, const OString &rDestinationFile );
+};
+
+#endif // INCLUDED_L10NTOOLS_INC_PROPMERGE_HXX
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/l10ntools/inc/tokens.h b/l10ntools/inc/tokens.h
new file mode 100644
index 000000000..95370cf70
--- /dev/null
+++ b/l10ntools/inc/tokens.h
@@ -0,0 +1,100 @@
+/* -*- 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_L10NTOOLS_INC_TOKENS_H
+#define INCLUDED_L10NTOOLS_INC_TOKENS_H
+
+/*------------------------------------------------------                    */
+/*------------------------------------------------------                    */
+/* Tokens for parsing src files                                             */
+/*------------------------------------------------------                    */
+/*------------------------------------------------------                    */
+#define IGNOREDTOKENS       400         /* #include | #pragma | //... | ... */
+#define COMMENT             401         /*...                               */
+#define DEFINEDRES          402         /* Text = {                         */
+#define ANYTOKEN            404         /* XYZ                              */
+#define UNKNOWNCHAR         407         /* .                                */
+/*------------------------------------------------------                    */
+/* prev. tokens will not be executed                                        */
+#define FILTER_LEVEL        500
+/* following tokens will be executed                                        */
+/*------------------------------------------------------                    */
+#define CONDITION           501         /* #if... | #endif ... | ...        */
+#define EMPTYLINE           502         /*                                  */
+#define RESOURCE            503         /* Menu MID_TEST                    */
+#define RESOURCEEXPR        504         /* Menu ( MID_TEST + .. )           */
+#define SMALRESOURCE        505         /* PageItem {                       */
+#define TEXTLINE            506         /* TEXT = "hhh"                     */
+#define LONGTEXTLINE        507         /* TEXT = "hhh" TEST "HHH" ...      */
+#define TEXT                508         /* "Something like this"            */
+#define LEVELUP             509         /* {                                */
+#define LEVELDOWN           510         /* };                               */
+#define APPFONTMAPPING      511         /* MAP_APPFONT(10,10)               */
+#define ASSIGNMENT          512         /* Something = Anything             */
+#define LISTASSIGNMENT      513         /* ...List [xyz]=...                */
+#define LISTTEXT            514         /* < "Text" ... >                   */
+#define RSCDEFINE           515         /* #define MY_TEXT                  */
+#define RSCDEFINELEND       516         /*                                  */
+#define PRAGMA              519         /* #pragma ...                      */
+#define LISTTEXT_           521         /* { "Text" ... }                   */
+#define NORMDEFINE          524         /* #define ...                      */
+/*------------------------------------------------------                    */
+/*------------------------------------------------------                    */
+/* Tokens for parsing cfg files                                             */
+/*------------------------------------------------------                    */
+/*------------------------------------------------------                    */
+#define CFG_TAG                     501
+#define CFG_TEXT_START              505
+#define CFG_TEXT_END                506
+#define CFG_TEXTCHAR                507
+#define CFG_CLOSETAG                508
+#define CFG_UNKNOWNTAG              509
+#define CFG_TOKEN_PACKAGE           600
+#define CFG_TOKEN_COMPONENT         601
+#define CFG_TOKEN_CONFIGNAME        602
+#define CFG_TOKEN_TEMPLATE          603
+#define CFG_TOKEN_OORNAME           604
+#define CFG_TOKEN_OORVALUE          605
+#define CFG_TOKEN_NO_TRANSLATE      606
+
+/*------------------------------------------------------                    */
+/*------------------------------------------------------                    */
+/* Tokens for parsing xrm files                                             */
+/*------------------------------------------------------                    */
+/*------------------------------------------------------                    */
+#define XRM_TEXT_START              507
+#define XRM_TEXT_END                508
+#define XML_TEXTCHAR                600
+
+/*------------------------------------------------------                    */
+/*------------------------------------------------------                    */
+/* Tokens for parsing description.xml files                                 */
+/*------------------------------------------------------                    */
+/*------------------------------------------------------                    */
+#define DESC_DISPLAY_NAME_START          700
+#define DESC_DISPLAY_NAME_END            701
+#define DESC_TEXT_START                  702
+#define DESC_TEXT_END                    703
+#define DESC_EXTENSION_DESCRIPTION_START 704
+#define DESC_EXTENSION_DESCRIPTION_END   705
+#define DESC_EXTENSION_DESCRIPTION_SRC   706
+
+#endif
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/l10ntools/inc/treemerge.hxx b/l10ntools/inc/treemerge.hxx
new file mode 100644
index 000000000..8e87188d8
--- /dev/null
+++ b/l10ntools/inc/treemerge.hxx
@@ -0,0 +1,46 @@
+/* -*- 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/.
+ */
+
+#ifndef INCLUDED_L10NTOOLS_INC_TREEMERGE_HXX
+#define INCLUDED_L10NTOOLS_INC_TREEMERGE_HXX
+
+#include <libxml/tree.h>
+#include <rtl/string.hxx>
+
+/**
+  Class for localization of *.tree files
+
+  Parse *.tree files, extract translatable strings,
+  merge translated strings and update reference and title
+  of referred help files.
+*/
+class TreeParser
+{
+private:
+    xmlDocPtr m_pSource;
+    OString m_sLang;
+    bool m_bIsInitialized;
+
+public:
+    /// Parse tree file
+    TreeParser( const OString& rInputFile, const OString& rLang );
+    ~TreeParser();
+
+    bool isInitialized() const { return m_bIsInitialized; }
+    /// Export strings
+    void Extract( const OString& rPOFile );
+    /// Merge strings to tree file and update reference to help files(xhp)
+    void Merge(
+        const OString &rMergeSrc, const OString &rDestinationFile,
+        const OString &rXhpRoot );
+};
+
+#endif // INCLUDED_L10NTOOLS_INC_TREEMERGE_HXX
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/l10ntools/inc/xmlparse.hxx b/l10ntools/inc/xmlparse.hxx
new file mode 100644
index 000000000..9a8b1e673
--- /dev/null
+++ b/l10ntools/inc/xmlparse.hxx
@@ -0,0 +1,360 @@
+/* -*- 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_L10NTOOLS_INC_XMLPARSE_HXX
+#define INCLUDED_L10NTOOLS_INC_XMLPARSE_HXX
+
+#include <sal/config.h>
+
+#include <cstddef>
+#include <memory>
+#include <vector>
+
+#include <expat.h>
+
+#include <rtl/string.hxx>
+#include <rtl/strbuf.hxx>
+#include <unordered_map>
+
+class XMLParentNode;
+class XMLElement;
+
+enum class XMLNodeType{
+    XFILE   = 0x001,
+    ELEMENT = 0x002,
+    DATA    = 0x003,
+    COMMENT = 0x004,
+    DEFAULT = 0x005
+};
+
+/** Holds data of Attributes
+ */
+class XMLAttribute
+{
+private:
+    OString m_sName;
+    OString m_sValue;
+
+public:
+    /// creates an attribute
+    XMLAttribute(
+        const OString &rName,    // attributes name
+        const OString &rValue    // attributes data
+    )
+    : m_sName( rName ), m_sValue( rValue ) {}
+
+    const OString& GetName() const { return m_sName; }
+    const OString& GetValue() const { return m_sValue; }
+
+    void setValue( const OString &rValue ){ m_sValue = rValue; }
+};
+
+
+typedef std::vector< XMLAttribute* > XMLAttributeList;
+
+/** Virtual base to handle different kinds of XML nodes
+ */
+class XMLNode
+{
+protected:
+    XMLNode(){}
+
+public:
+    virtual XMLNodeType GetNodeType() const = 0;
+    virtual ~XMLNode(){}
+
+    XMLNode(XMLNode const &) = default;
+    XMLNode(XMLNode &&) = default;
+    XMLNode & operator =(XMLNode const &) = default;
+    XMLNode & operator =(XMLNode &&) = default;
+};
+
+
+/** Virtual base to handle different kinds of child nodes
+ */
+class XMLChildNode : public XMLNode
+{
+private:
+    XMLParentNode *m_pParent;
+
+protected:
+    XMLChildNode( XMLParentNode *pPar );
+    XMLChildNode( const XMLChildNode& rObj);
+    XMLChildNode& operator=(const XMLChildNode& rObj);
+public:
+    /// returns the parent of this node
+    XMLParentNode *GetParent() { return m_pParent; }
+};
+
+typedef std::vector< XMLChildNode* > XMLChildNodeList;
+
+class XMLData;
+
+/** Virtual base to handle different kinds of parent nodes
+ */
+
+class XMLParentNode : public XMLChildNode
+{
+private:
+    std::unique_ptr<XMLChildNodeList> m_pChildList;
+
+protected:
+    XMLParentNode( XMLParentNode *pPar )
+        : XMLChildNode( pPar ) {}
+
+    XMLParentNode( const XMLParentNode& );
+
+    XMLParentNode& operator=(const XMLParentNode& rObj);
+    virtual ~XMLParentNode() override;
+
+public:
+    /// returns child list of this node
+    XMLChildNodeList *GetChildList() { return m_pChildList.get(); }
+
+    /// adds a new child
+    void AddChild(
+        XMLChildNode *pChild    /// the new child
+    );
+
+    void RemoveAndDeleteAllChildren();
+};
+
+/// Mapping numeric Language code <-> XML Element
+typedef std::unordered_map<OString, XMLElement*> LangHashMap;
+
+/// Mapping XML Element string identifier <-> Language Map
+typedef std::unordered_map<OString, LangHashMap*> XMLHashMap;
+
+/** Holds information of a XML file, is root node of tree
+ */
+class XMLFile final : public XMLParentNode
+{
+public:
+    XMLFile(
+        const OString &rFileName // the file name, empty if created from memory stream
+    );
+    XMLFile( const XMLFile& rObj ) ;
+    virtual ~XMLFile() override;
+
+    void Print( XMLNode *pCur, sal_uInt16 nLevel = 0 );
+    void SearchL10NElements( XMLChildNode *pCur );
+    void Extract();
+
+    XMLHashMap* GetStrings(){ return m_pXMLStrings.get(); }
+    void Write( OString const &rFilename );
+    void Write( std::ofstream &rStream, XMLNode *pCur = nullptr );
+
+    bool CheckExportStatus( XMLParentNode *pCur = nullptr );
+
+    XMLFile& operator=(const XMLFile& rObj);
+
+    virtual XMLNodeType GetNodeType() const override { return XMLNodeType::XFILE; }
+
+    /// returns file name
+    const OString& GetName() const { return m_sFileName; }
+    void SetName( const OString &rFilename ) { m_sFileName = rFilename; }
+    const std::vector<OString>& getOrder() const { return m_vOrder; }
+
+private:
+
+    void InsertL10NElement( XMLElement* pElement);
+
+    // DATA
+    OString m_sFileName;
+
+    /// Mapping XML tag names <-> have localizable strings
+    std::unordered_map<OString, bool> m_aNodes_localize;
+
+    std::unique_ptr<XMLHashMap> m_pXMLStrings;
+
+    std::vector <OString> m_vOrder;
+};
+
+/// A Utility class for XML
+class XMLUtil
+{
+public:
+    /// Quot the XML characters
+    static OString QuotHTML( const OString& rString );
+};
+
+
+/** Hold information of an element node
+ */
+class XMLElement : public XMLParentNode
+{
+private:
+    OString m_sElementName;
+    std::unique_ptr<XMLAttributeList> m_pAttributes;
+
+protected:
+    void Print(XMLNode *pCur, OStringBuffer& rBuffer, bool bRootelement) const;
+public:
+    /// create an element node
+    XMLElement(
+        const OString &rName,    // the element name
+        XMLParentNode *pParent   // parent node of this element
+    );
+
+    virtual ~XMLElement() override;
+    XMLElement(const XMLElement&);
+
+    XMLElement& operator=(const XMLElement& rObj);
+    virtual XMLNodeType GetNodeType() const override { return XMLNodeType::ELEMENT; }
+
+    /// returns element name
+    const OString& GetName() const { return m_sElementName; }
+
+    /// returns list of attributes of this element
+    XMLAttributeList *GetAttributeList() { return m_pAttributes.get(); }
+
+    /// adds a new attribute to this element, typically used by parser
+    void AddAttribute( const OString &rAttribute, const OString &rValue );
+
+    void ChangeLanguageTag( const OString &rValue );
+
+    /// Return a Unicode String representation of this object
+    OString ToOString();
+};
+
+/** Holds character data
+ */
+class XMLData : public XMLChildNode
+{
+private:
+    OString m_sData;
+
+public:
+    /// create a data node
+    XMLData(
+        const OString &rData,    // the initial data
+        XMLParentNode *pParent   // the parent node of this data, typically an element node
+    )
+        : XMLChildNode( pParent ), m_sData( rData ) {}
+
+    // Default copy constructor and copy operator work well.
+
+    virtual XMLNodeType GetNodeType() const override { return XMLNodeType::DATA; }
+
+    /// returns the data
+    const OString& GetData() const { return m_sData; }
+
+    /// adds new character data to the existing one
+    void AddData( const OString &rData ) { m_sData += rData; }
+};
+
+/** Holds comments
+ */
+class XMLComment final : public XMLChildNode
+{
+private:
+    OString m_sComment;
+
+public:
+    /// create a comment node
+    XMLComment(
+        const OString &rComment, // the comment
+        XMLParentNode *pParent   // the parent node of this comment, typically an element node
+    )
+        : XMLChildNode( pParent ), m_sComment( rComment ) {}
+
+    // Default copy constructor and copy operator work well.
+
+    virtual XMLNodeType GetNodeType() const override { return XMLNodeType::COMMENT; }
+
+    /// returns the comment
+    const OString& GetComment() const { return m_sComment; }
+};
+
+/** Holds additional file content like those for which no handler exists
+ */
+class XMLDefault final : public XMLChildNode
+{
+private:
+    OString m_sDefault;
+
+public:
+    /// create a comment node
+    XMLDefault(
+        const OString &rDefault, // the comment
+        XMLParentNode *pParent   // the parent node of this comment, typically an element node
+    )
+        : XMLChildNode( pParent ), m_sDefault( rDefault ) {}
+
+    // Default copy constructor and copy operator work well.
+
+    virtual XMLNodeType GetNodeType() const override { return XMLNodeType::DEFAULT; }
+
+    /// returns the comment
+    const OString& GetDefault() const { return m_sDefault; }
+};
+
+/** struct for error information, used by class SimpleXMLParser
+ */
+struct XMLError {
+    XML_Error m_eCode;    ///< the error code
+    std::size_t m_nLine; ///< error line number
+    std::size_t m_nColumn; ///< error column number
+    OString m_sMessage;    ///< readable error message
+};
+
+/** validating xml parser, creates a document tree with xml nodes
+ */
+
+class SimpleXMLParser
+{
+private:
+    XML_Parser m_aParser;
+    XMLError m_aErrorInformation;
+
+    XMLParentNode *m_pCurNode;
+    XMLData *m_pCurData;
+
+
+    static void StartElementHandler( void *userData, const XML_Char *name, const XML_Char **atts );
+    static void EndElementHandler( void *userData, const XML_Char *name );
+    static void CharacterDataHandler( void *userData, const XML_Char *s, int len );
+    static void CommentHandler( void *userData, const XML_Char *data );
+    static void DefaultHandler( void *userData, const XML_Char *s, int len );
+
+
+    void StartElement( const XML_Char *name, const XML_Char **atts );
+    void EndElement();
+    void CharacterData( const XML_Char *s, int len );
+    void Comment( const XML_Char *data );
+    void Default( const XML_Char *s, int len );
+
+public:
+    /// creates a new parser
+    SimpleXMLParser();
+    ~SimpleXMLParser();
+
+    /// parse a file, return false on critical errors
+    bool Execute(
+        const OString &rFileName,    // the file name
+        XMLFile* pXMLFile  // the XMLFile
+    );
+
+    /// returns an error struct
+    const XMLError &GetError() const { return m_aErrorInformation; }
+};
+
+#endif // INCLUDED_L10NTOOLS_INC_XMLPARSE_HXX
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/l10ntools/inc/xrmlex.hxx b/l10ntools/inc/xrmlex.hxx
new file mode 100644
index 000000000..483b6dbaa
--- /dev/null
+++ b/l10ntools/inc/xrmlex.hxx
@@ -0,0 +1,40 @@
+/* -*- 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_L10NTOOLS_INC_XRMLEX_HXX
+#define INCLUDED_L10NTOOLS_INC_XRMLEX_HXX
+
+#include <sal/config.h>
+
+#include <stdio.h>
+
+extern "C" int WorkOnTokenSet( int, char* );
+extern "C" int InitXrmExport( const char * );
+extern "C" int EndXrmExport();
+extern "C" int GetError();
+extern "C" int SetError();
+extern "C" bool GetOutputFile( int argc, char* argv[]);
+extern "C" FILE *GetXrmFile();
+extern "C" const char* getFilename();
+
+void yyerror( const char * );
+
+#endif
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/l10ntools/inc/xrmmerge.hxx b/l10ntools/inc/xrmmerge.hxx
new file mode 100644
index 000000000..4225f44d1
--- /dev/null
+++ b/l10ntools/inc/xrmmerge.hxx
@@ -0,0 +1,142 @@
+/* -*- 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_L10NTOOLS_INC_XRMMERGE_HXX
+#define INCLUDED_L10NTOOLS_INC_XRMMERGE_HXX
+
+#include <memory>
+#include <sal/config.h>
+
+#include <fstream>
+#include <string_view>
+
+#include <rtl/string.hxx>
+
+#include "export.hxx"
+#include "po.hxx"
+
+/// Parser for *.xrm and description.xml files
+class XRMResParser
+{
+private:
+    OString sGID;
+
+    bool bError;
+    bool bText;
+
+    OString sCurrentOpenTag;
+    OString sCurrentCloseTag;
+    OString sCurrentText;
+protected:
+    static OString GetAttribute( const OString &rToken, std::string_view rAttribute );
+    static void Error( const OString &rError );
+
+    virtual void Output( const OString& rOutput )=0;
+    virtual void WorkOnDesc(
+        const OString &rOpenTag,
+        OString &rText
+    )=0;
+    virtual void WorkOnText(
+        const OString &rOpenTag,
+        OString &rText
+    )=0;
+    virtual void EndOfText(
+        const OString &rOpenTag,
+        const OString &rCloseTag
+    )=0;
+
+    const OString& GetGID() const { return sGID; }
+
+public:
+    XRMResParser();
+    virtual ~XRMResParser();
+
+    void Execute( int nToken, char * pToken );
+
+    void SetError() { bError = true; }
+    bool GetError() const { return bError; }
+};
+
+
+/// Export strings from *.xrm and description.xml files
+class XRMResExport final : public XRMResParser
+{
+private:
+    std::unique_ptr<ResData> pResData;
+    OString sPath;
+    PoOfstream pOutputStream;
+
+    void WorkOnDesc(
+        const OString &rOpenTag,
+        OString &rText
+    ) override;
+    void WorkOnText(
+        const OString &rOpenTag,
+        OString &rText
+    ) override;
+    void EndOfText(
+        const OString &rOpenTag,
+        const OString &rCloseTag
+    ) override;
+    void Output( const OString& rOutput ) override;
+
+public:
+    XRMResExport(
+        const OString &rOutputFile,
+        const OString &rFilePath
+    );
+    virtual ~XRMResExport() override;
+};
+
+
+/// Merge strings to *.xrm and description.xml files
+class XRMResMerge final : public XRMResParser
+{
+private:
+    std::unique_ptr<MergeDataFile> pMergeDataFile;
+    OString sFilename;
+    std::unique_ptr<ResData> pResData;
+    std::ofstream pOutputStream;
+    std::vector<OString> aLanguages;
+
+    void WorkOnDesc(
+        const OString &rOpenTag,
+        OString &rText
+    ) override;
+    void WorkOnText(
+        const OString &rOpenTag,
+        OString &rText
+    ) override;
+    void EndOfText(
+        const OString &rOpenTag,
+        const OString &rCloseTag
+    ) override;
+    void Output( const OString& rOutput ) override;
+public:
+    XRMResMerge(
+        const OString &rMergeSource,
+        const OString &rOutputFile,
+        const OString &rFilename
+    );
+    virtual ~XRMResMerge() override;
+};
+
+#endif // INCLUDED_L10NTOOLS_INC_XRMMERGE_HXX
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/l10ntools/source/cfg_yy_wrapper.c b/l10ntools/source/cfg_yy_wrapper.c
new file mode 100644
index 000000000..485ce0ab6
--- /dev/null
+++ b/l10ntools/source/cfg_yy_wrapper.c
@@ -0,0 +1,26 @@
+/* -*- 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 .
+ */
+
+// Helper to suppress warnings in lex generated c code, see #i57362#
+#include "cfg_yy.c"
+
+void (*avoid_unused_yyunput_in_cfg_yy_c)() = yyunput;
+int (*avoid_unused_yy_flex_strlen_in_cfg_yy_c)() = yy_flex_strlen;
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/l10ntools/source/cfglex.l b/l10ntools/source/cfglex.l
new file mode 100644
index 000000000..1bac5a32d
--- /dev/null
+++ b/l10ntools/source/cfglex.l
@@ -0,0 +1,165 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4; fill-column: 100 -*- */
+/*
+ * 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 .
+ */
+
+%{
+
+/*
+ * lexer for parsing cfg source files
+ */
+
+#include <sal/config.h>
+
+/* enlarge token buffer to tokenize whole strings */
+#undef YYLMAX
+#define YYLMAX 64000
+
+/* to enable debug output define LEXDEBUG */
+#define LEXDEBUG        1
+#ifdef LEXDEBUG
+#define OUTPUT  fprintf
+#else
+#define OUTPUT(Par1,Par2);
+#endif
+
+/* table of possible token ids */
+#include <tokens.h>
+#include <stdlib.h>
+#include <stdio.h>
+
+#include <sal/main.h>
+
+#include <cfglex.hxx>
+
+#define YY_NO_UNISTD_H
+
+static int yycolumn = 1;
+#define YY_USER_ACTION yycolumn += yyleng;
+
+static int bText=0;
+%}
+
+%option yylineno
+%option nounput
+%option never-interactive
+
+%p 24000
+%e 1200
+%n 500
+
+%%
+
+\<[^\>]*"xml:lang="\""x-no-translate"\"[^\<]*\/\>   {
+    bText = 0;
+    workOnTokenSet( CFG_TOKEN_NO_TRANSLATE, yytext );
+}
+
+\<.*\/\> {
+    bText = 0;
+    workOnTokenSet( ANYTOKEN, yytext );
+}
+
+\<[^\>]*"xml:lang="\".*\"[^\<]*\>   {
+    bText = 1;
+    workOnTokenSet( CFG_TEXT_START, yytext );
+}
+
+
+\<[^\/\!][^\>]*\>   {
+    bText = 0;
+    workOnTokenSet( CFG_TAG, yytext );
+}
+
+"<!"DOCTYPE[^\>]*\> {
+    bText = 0;
+    workOnTokenSet( CFG_TAG, yytext );
+}
+
+
+\<\!\-\-    {
+    char c1 = 0, c2 = 0;
+    int c3 = yyinput();
+    char pChar[2];
+    pChar[1] = 0x00;
+    pChar[0] = c3;
+
+    workOnTokenSet( COMMENT, yytext );
+    workOnTokenSet( COMMENT, pChar );
+
+    for(;;) {
+        if ( c3 == EOF )
+            break;
+        if ( c1 == '-' && c2 == '-' && c3 == '>' )
+            break;
+        c1 = c2;
+        c2 = c3;
+        c3 = yyinput();
+
+        pChar[0] = c3;
+        workOnTokenSet( COMMENT, pChar );
+    }
+}
+
+\<\/[^\>]*\> {
+    bText = 0;
+    workOnTokenSet( CFG_CLOSETAG, yytext );
+}
+
+\<[^\>\!]*\> {
+    bText = 0;
+    if ( yytext[ 1 ] == '!' && yytext[ 2 ] == '-' && yytext[ 3 ] == '-' )
+        workOnTokenSet( COMMENT, yytext );
+    else
+        workOnTokenSet( CFG_UNKNOWNTAG, yytext );
+}
+
+.|\n {
+    yycolumn = 1;
+    if ( bText == 1 )
+        workOnTokenSet( CFG_TEXTCHAR, yytext );
+    else
+        workOnTokenSet( UNKNOWNCHAR, yytext );
+}
+
+
+%%
+
+/*****************************************************************************/
+int yywrap(void)
+/*****************************************************************************/
+{
+    return 1;
+}
+
+/*****************************************************************************/
+void yyerror ( const char *s )
+/*****************************************************************************/
+{
+    /* write error to stderr */
+    fprintf( stderr,
+        "Error: \"%s\" in line %d, column %d: \"%s\"\n", s, yylineno, yycolumn, yytext  );
+    exit(EXIT_FAILURE);
+}
+
+SAL_IMPLEMENT_MAIN_WITH_ARGS(argc, argv) {
+    yyin = init(argc, argv);
+    yylex();
+    return EXIT_SUCCESS;
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab cinoptions=b1,g0,N-s cinkeys+=0=break: */
diff --git a/l10ntools/source/cfgmerge.cxx b/l10ntools/source/cfgmerge.cxx
new file mode 100644
index 000000000..9d6689fe8
--- /dev/null
+++ b/l10ntools/source/cfgmerge.cxx
@@ -0,0 +1,485 @@
+/* -*- 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 <sal/config.h>
+
+#include <cfglex.hxx>
+#include <common.hxx>
+
+#include <cstdio>
+#include <cstdlib>
+#include <iostream>
+#include <memory>
+#include <rtl/strbuf.hxx>
+#include <o3tl/string_view.hxx>
+
+#include <helper.hxx>
+#include <export.hxx>
+#include <cfgmerge.hxx>
+#include <tokens.h>
+
+namespace {
+
+namespace global {
+
+OString inputPathname;
+std::unique_ptr< CfgParser > parser;
+
+}
+}
+
+extern "C" {
+
+FILE * init(int argc, char ** argv) {
+
+    common::HandledArgs aArgs;
+    if ( !common::handleArguments(argc, argv, aArgs) )
+    {
+        common::writeUsage("cfgex","*.xcu");
+        std::exit(EXIT_FAILURE);
+    }
+    global::inputPathname = aArgs.m_sInputFile;
+
+    FILE * pFile = std::fopen(global::inputPathname.getStr(), "r");
+    if (pFile == nullptr) {
+        std::fprintf(
+            stderr, "Error: Cannot open file \"%s\"\n",
+            global::inputPathname.getStr() );
+        std::exit(EXIT_FAILURE);
+    }
+
+    if (aArgs.m_bMergeMode) {
+        global::parser.reset(
+            new CfgMerge(
+                aArgs.m_sMergeSrc, aArgs.m_sOutputFile,
+                global::inputPathname, aArgs.m_sLanguage ));
+    } else {
+        global::parser.reset(
+            new CfgExport(
+                aArgs.m_sOutputFile, global::inputPathname ));
+    }
+
+    return pFile;
+}
+
+void workOnTokenSet(int nTyp, char * pTokenText) {
+    global::parser->Execute( nTyp, pTokenText );
+}
+
+}
+
+
+
+
+CfgStackData* CfgStack::Push(const OString &rTag, const OString &rId)
+{
+    CfgStackData *pD = new CfgStackData( rTag, rId );
+    maList.push_back( pD );
+    return pD;
+}
+
+
+
+
+CfgStack::~CfgStack()
+{
+}
+
+OString CfgStack::GetAccessPath( size_t nPos )
+{
+    OStringBuffer sReturn;
+    for (size_t i = 0; i <= nPos; ++i)
+    {
+        if (i)
+            sReturn.append('.');
+        sReturn.append(maList[i]->GetIdentifier());
+    }
+
+    return sReturn.makeStringAndClear();
+}
+
+CfgStackData *CfgStack::GetStackData()
+{
+    if (!maList.empty())
+        return maList[maList.size() - 1];
+    else
+        return nullptr;
+}
+
+
+
+
+CfgParser::CfgParser()
+                : pStackData( nullptr ),
+                bLocalize( false )
+{
+}
+
+CfgParser::~CfgParser()
+{
+}
+
+bool CfgParser::IsTokenClosed(std::string_view rToken)
+{
+    return rToken[rToken.size() - 2] == '/';
+}
+
+void CfgParser::AddText(
+    OString &rText,
+    const OString &rIsoLang,
+    const OString &rResTyp )
+{
+    rText = rText.replaceAll(OString('\n'), OString()).
+        replaceAll(OString('\r'), OString()).
+        replaceAll(OString('\t'), OString());
+    pStackData->sResTyp = rResTyp;
+    WorkOnText( rText, rIsoLang );
+    pStackData->sText[ rIsoLang ] = rText;
+}
+
+#if defined _MSC_VER
+#pragma warning(disable: 4702) // unreachable code, bug in MSVC2015, it thinks the std::exit is unreachable
+#endif
+void CfgParser::ExecuteAnalyzedToken( int nToken, char *pToken )
+{
+    OString sToken( pToken );
+
+    if ( sToken == " " || sToken == "\t" )
+        sLastWhitespace += sToken;
+
+    OString sTokenName;
+
+    bool bOutput = true;
+
+    switch ( nToken ) {
+        case CFG_TOKEN_PACKAGE:
+        case CFG_TOKEN_COMPONENT:
+        case CFG_TOKEN_TEMPLATE:
+        case CFG_TOKEN_CONFIGNAME:
+        case CFG_TOKEN_OORNAME:
+        case CFG_TOKEN_OORVALUE:
+        case CFG_TAG:
+        case ANYTOKEN:
+        case CFG_TEXT_START:
+        {
+            sTokenName = sToken.getToken(1, '<').getToken(0, '>').
+                getToken(0, ' ');
+
+            if ( !IsTokenClosed( sToken )) {
+                OString sSearch;
+                switch ( nToken ) {
+                    case CFG_TOKEN_PACKAGE:
+                        sSearch = "package-id=";
+                    break;
+                    case CFG_TOKEN_COMPONENT:
+                        sSearch = "component-id=";
+                    break;
+                    case CFG_TOKEN_TEMPLATE:
+                        sSearch = "template-id=";
+                    break;
+                    case CFG_TOKEN_CONFIGNAME:
+                        sSearch = "cfg:name=";
+                    break;
+                    case CFG_TOKEN_OORNAME:
+                        sSearch = "oor:name=";
+                        bLocalize = true;
+                    break;
+                    case CFG_TOKEN_OORVALUE:
+                        sSearch = "oor:value=";
+                    break;
+                    case CFG_TEXT_START: {
+                        if ( sCurrentResTyp != sTokenName ) {
+                            WorkOnResourceEnd();
+                        }
+                        sCurrentResTyp = sTokenName;
+
+                        OString sTemp = sToken.copy( sToken.indexOf( "xml:lang=" ));
+                        sCurrentIsoLang = sTemp.getToken(1, '"');
+
+                        if ( sCurrentIsoLang == NO_TRANSLATE_ISO )
+                            bLocalize = false;
+
+                        pStackData->sTextTag = sToken;
+
+                        sCurrentText = "";
+                    }
+                    break;
+                }
+                OString sTokenId;
+                if ( !sSearch.isEmpty())
+                {
+                    OString sTemp = sToken.copy( sToken.indexOf( sSearch ));
+                    sTokenId = sTemp.getToken(1, '"');
+                }
+                pStackData = aStack.Push( sTokenName, sTokenId );
+
+                if ( sSearch == "cfg:name=" ) {
+                    OString sTemp( sToken.toAsciiUpperCase() );
+                    bLocalize = sTemp.indexOf("CFG:TYPE=\"STRING\"")>=0
+                        && sTemp.indexOf( "CFG:LOCALIZED=\"TRUE\"" )>=0;
+                }
+            }
+            else if ( sTokenName == "label" ) {
+                if ( sCurrentResTyp != sTokenName ) {
+                    WorkOnResourceEnd();
+                }
+                sCurrentResTyp = sTokenName;
+            }
+        }
+        break;
+        case CFG_CLOSETAG:
+        {
+            sTokenName = sToken.getToken(1, '/').getToken(0, '>').
+                getToken(0, ' ');
+            if ( aStack.GetStackData() && ( aStack.GetStackData()->GetTagType() == sTokenName ))
+            {
+                if (sCurrentText.isEmpty())
+                    WorkOnResourceEnd();
+                aStack.Pop();
+                pStackData = aStack.GetStackData();
+            }
+            else
+            {
+                const OString sError{ "Misplaced close tag: " + sToken + " in file " + global::inputPathname };
+                yyerror(sError.getStr());
+                std::exit(EXIT_FAILURE);
+            }
+        }
+        break;
+
+        case CFG_TEXTCHAR:
+            sCurrentText += sToken;
+            bOutput = false;
+        break;
+
+        case CFG_TOKEN_NO_TRANSLATE:
+            bLocalize = false;
+        break;
+    }
+
+    if ( !sCurrentText.isEmpty() && nToken != CFG_TEXTCHAR )
+    {
+        AddText( sCurrentText, sCurrentIsoLang, sCurrentResTyp );
+        Output( sCurrentText );
+        sCurrentText.clear();
+        pStackData->sEndTextTag = sToken;
+    }
+
+    if ( bOutput )
+        Output( sToken );
+
+    if ( sToken != " " && sToken != "\t" )
+        sLastWhitespace = "";
+}
+
+void CfgExport::Output(const OString&)
+{
+}
+
+void CfgParser::Execute( int nToken, char * pToken )
+{
+    OString sToken( pToken );
+
+    switch ( nToken ) {
+        case CFG_TAG:
+            if ( sToken.indexOf( "package-id=" ) != -1 ) {
+                ExecuteAnalyzedToken( CFG_TOKEN_PACKAGE, pToken );
+                return;
+            } else if ( sToken.indexOf( "component-id=" ) != -1 ) {
+                ExecuteAnalyzedToken( CFG_TOKEN_COMPONENT, pToken );
+                return;
+            } else if ( sToken.indexOf( "template-id=" ) != -1 ) {
+                ExecuteAnalyzedToken( CFG_TOKEN_TEMPLATE, pToken );
+                return;
+            } else if ( sToken.indexOf( "cfg:name=" ) != -1 ) {
+                ExecuteAnalyzedToken( CFG_TOKEN_OORNAME, pToken );
+                return;
+            } else if ( sToken.indexOf( "oor:name=" ) != -1 ) {
+                ExecuteAnalyzedToken( CFG_TOKEN_OORNAME, pToken );
+                return;
+            } else if ( sToken.indexOf( "oor:value=" ) != -1 ) {
+                ExecuteAnalyzedToken( CFG_TOKEN_OORVALUE, pToken );
+                return;
+            }
+        break;
+    }
+    ExecuteAnalyzedToken( nToken, pToken );
+}
+
+
+
+
+CfgExport::CfgExport(
+        const OString &rOutputFile,
+        const OString &rFilePath )
+
+                : sPath( rFilePath )
+{
+    pOutputStream.open( rOutputFile, PoOfstream::APP );
+    if (!pOutputStream.isOpen())
+    {
+        std::cerr << "ERROR: Unable to open output file: " << rOutputFile << "\n";
+        std::exit(EXIT_FAILURE);
+    }
+}
+
+CfgExport::~CfgExport()
+{
+    pOutputStream.close();
+}
+
+
+void CfgExport::WorkOnResourceEnd()
+{
+    if ( !bLocalize )
+        return;
+
+    if ( pStackData->sText["en-US"].isEmpty() )
+        return;
+
+    OString sXComment = pStackData->sText[OString("x-comment")];
+    OString sLocalId = pStackData->sIdentifier;
+    OString sGroupId;
+    if ( aStack.size() == 1 ) {
+        sGroupId = sLocalId;
+        sLocalId = "";
+    }
+    else {
+        sGroupId = aStack.GetAccessPath( aStack.size() - 2 );
+    }
+
+
+    OString sText = pStackData->sText[ "en-US" ];
+    sText = helper::UnQuotHTML( sText );
+
+    common::writePoEntry(
+        "Cfgex", pOutputStream, sPath, pStackData->sResTyp,
+        sGroupId, sLocalId, sXComment, sText);
+}
+
+void CfgExport::WorkOnText(
+    OString &rText,
+    const OString &rIsoLang
+)
+{
+    if( !rIsoLang.isEmpty() ) rText = helper::UnQuotHTML( rText );
+}
+
+
+
+
+CfgMerge::CfgMerge(
+    const OString &rMergeSource, const OString &rOutputFile,
+    const OString &rFilename, const OString &rLanguage )
+                : sFilename( rFilename ),
+                bEnglish( false )
+{
+    pOutputStream.open(
+        rOutputFile.getStr(), std::ios_base::out | std::ios_base::trunc);
+    if (!pOutputStream.is_open())
+    {
+        std::cerr << "ERROR: Unable to open output file: " << rOutputFile << "\n";
+        std::exit(EXIT_FAILURE);
+    }
+
+    if (!rMergeSource.isEmpty())
+    {
+        pMergeDataFile.reset(new MergeDataFile(
+            rMergeSource, global::inputPathname, true ));
+        if (rLanguage.equalsIgnoreAsciiCase("ALL") )
+        {
+            aLanguages = pMergeDataFile->GetLanguages();
+        }
+        else aLanguages.push_back(rLanguage);
+    }
+    else
+        aLanguages.push_back(rLanguage);
+}
+
+CfgMerge::~CfgMerge()
+{
+    pOutputStream.close();
+}
+
+void CfgMerge::WorkOnText(OString &, const OString& rLangIndex)
+{
+    if ( !(pMergeDataFile && bLocalize) )
+        return;
+
+    if ( !pResData ) {
+        OString sLocalId = pStackData->sIdentifier;
+        OString sGroupId;
+        if ( aStack.size() == 1 ) {
+            sGroupId = sLocalId;
+            sLocalId.clear();
+        }
+        else {
+            sGroupId = aStack.GetAccessPath( aStack.size() - 2 );
+        }
+
+        pResData.reset( new ResData( sGroupId, sFilename ) );
+        pResData->sId = sLocalId;
+        pResData->sResTyp = pStackData->sResTyp;
+    }
+
+    if (rLangIndex.equalsIgnoreAsciiCase("en-US"))
+        bEnglish = true;
+}
+
+void CfgMerge::Output(const OString& rOutput)
+{
+    pOutputStream << rOutput;
+}
+
+void CfgMerge::WorkOnResourceEnd()
+{
+
+    if ( pMergeDataFile && pResData && bLocalize && bEnglish ) {
+        MergeEntrys *pEntrys = pMergeDataFile->GetMergeEntrysCaseSensitive( pResData.get() );
+        if ( pEntrys ) {
+            OString sCur;
+
+            for( size_t i = 0; i < aLanguages.size(); ++i ){
+                sCur = aLanguages[ i ];
+
+                OString sContent;
+                pEntrys->GetText( sContent, sCur, true );
+                if (
+                    ( !sCur.equalsIgnoreAsciiCase("en-US") ) && !sContent.isEmpty())
+                {
+                    OString sTextTag = pStackData->sTextTag;
+                    const sal_Int32 nLangAttributeStart{ sTextTag.indexOf( "xml:lang=" ) };
+                    const sal_Int32 nLangStart{ sTextTag.indexOf( '"', nLangAttributeStart )+1 };
+                    const sal_Int32 nLangEnd{ sTextTag.indexOf( '"', nLangStart ) };
+                    OString sAdditionalLine{ "\t"
+                        + sTextTag.replaceAt(nLangStart, nLangEnd-nLangStart, sCur)
+                        + helper::QuotHTML(sContent)
+                        + pStackData->sEndTextTag
+                        + "\n"
+                        + sLastWhitespace };
+                    Output( sAdditionalLine );
+                }
+            }
+        }
+    }
+    pResData.reset();
+    bEnglish = false;
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/l10ntools/source/common.cxx b/l10ntools/source/common.cxx
new file mode 100644
index 000000000..4cc9ba640
--- /dev/null
+++ b/l10ntools/source/common.cxx
@@ -0,0 +1,161 @@
+/* -*- 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/.
+ */
+
+#include <iostream>
+
+#include <common.hxx>
+
+namespace {
+
+//flags for handleArguments()
+enum class State {
+    NONE, Input, Output, MergeSrc, Languages
+};
+
+}
+
+namespace common {
+
+bool handleArguments(
+    int argc, char * argv[], HandledArgs& o_aHandledArgs)
+{
+    o_aHandledArgs = HandledArgs();
+    State nState = State::NONE;
+
+    for( int i = 1; i < argc; i++ )
+    {
+        if ( OString( argv[ i ] ).toAsciiUpperCase() == "-I" )
+        {
+            nState = State::Input; // next token specifies source file
+        }
+        else if ( OString( argv[ i ] ).toAsciiUpperCase() == "-O" )
+        {
+            nState = State::Output; // next token specifies the dest file
+        }
+        else if ( OString( argv[ i ] ).toAsciiUpperCase() == "-M" )
+        {
+            nState = State::MergeSrc; // next token specifies the merge database
+            o_aHandledArgs.m_bMergeMode = true;
+        }
+        else if ( OString( argv[ i ] ).toAsciiUpperCase() == "-L" )
+        {
+            nState = State::Languages;
+        }
+        else if ( OString( argv[ i ] ).toAsciiUpperCase() == "-B" )
+        {
+            o_aHandledArgs.m_bUTF8BOM = true;
+        }
+        else
+        {
+            switch ( nState )
+            {
+                case State::NONE:
+                {
+                    return false;    // no valid command line
+                }
+                case State::Input:
+                {
+                    o_aHandledArgs.m_sInputFile = OString( argv[i] );
+                }
+                break;
+                case State::Output:
+                {
+                    o_aHandledArgs.m_sOutputFile = OString( argv[i] );
+                }
+                break;
+                case State::MergeSrc:
+                {
+                    o_aHandledArgs.m_sMergeSrc = OString( argv[i] );
+                }
+                break;
+                case State::Languages:
+                {
+                    o_aHandledArgs.m_sLanguage = OString( argv[i] );
+                }
+                break;
+            }
+        }
+    }
+    if( !o_aHandledArgs.m_sInputFile.isEmpty() &&
+        !o_aHandledArgs.m_sOutputFile.isEmpty() )
+    {
+        return true;
+    }
+    else
+    {
+        o_aHandledArgs = HandledArgs();
+        return false;
+    }
+}
+
+void writeUsage(const OString& rName, const OString& rFileType)
+{
+    std::cout
+        << " Syntax: " << rName
+        << " -i FileIn -o FileOut [-m DataBase] [-l Lang] [-b]\n"
+           " FileIn:   Source files (" << rFileType << ")\n"
+           " FileOut:  Destination file (*.*)\n"
+           " DataBase: Mergedata (*.po)\n"
+           " Lang: Restrict the handled language; one element of\n"
+           " (de, en-US, ...) or all\n"
+           " -b:   Add UTF-8 Byte Order Mark to FileOut(use with -m option)\n";
+}
+
+void writePoEntry(
+    const OString& rExecutable, PoOfstream& rPoStream, const OString& rSourceFile,
+    std::string_view rResType, const OString& rGroupId, const OString& rLocalId,
+    const OString& rHelpText, const OString& rText, const PoEntry::TYPE eType )
+{
+    try
+    {
+        PoEntry aPO(rSourceFile, rResType, rGroupId, rLocalId, rHelpText, rText, eType);
+        rPoStream.writeEntry( aPO );
+    }
+    catch( PoEntry::Exception& aException )
+    {
+        if(aException == PoEntry::NOSOURCFILE)
+        {
+            std::cerr << rExecutable << " warning: no sourcefile specified for po entry\n";
+        }
+        else
+        {
+            std::cerr << rExecutable << " warning: invalid po attributes extracted from " <<  rSourceFile << "\n";
+            if(aException == PoEntry::NOGROUPID)
+            {
+                std::cerr << "No groupID specified!\n";
+                std::cerr << "String: " << rText << "\n";
+            }
+            else if (aException == PoEntry::NOSTRING)
+            {
+                std::cerr << "No string specified!\n";
+                std::cerr << "GroupID: " << rGroupId << "\n";
+                if( !rLocalId.isEmpty() ) std::cerr << "LocalID: " << rLocalId << "\n";
+            }
+            else
+            {
+                if (aException == PoEntry::NORESTYPE)
+                {
+                    std::cerr << "No resource type specified!\n";
+                }
+                else if (aException == PoEntry::WRONGHELPTEXT)
+                {
+                    std::cerr << "x-comment length is 5 characters:" << rHelpText << "\n";
+                }
+
+                std::cerr << "GroupID: " << rGroupId << "\n";
+                if( !rLocalId.isEmpty() ) std::cerr << "LocalID: " << rLocalId << "\n";
+                std::cerr << "String: " << rText << "\n";
+            }
+        }
+    }
+}
+
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/l10ntools/source/helper.cxx b/l10ntools/source/helper.cxx
new file mode 100644
index 000000000..4726234b1
--- /dev/null
+++ b/l10ntools/source/helper.cxx
@@ -0,0 +1,156 @@
+/* -*- 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/.
+ */
+
+#include <sal/config.h>
+
+#include <libxml/parser.h>
+
+#include <o3tl/safeint.hxx>
+#include <o3tl/string_view.hxx>
+#include <rtl/strbuf.hxx>
+
+#include <helper.hxx>
+
+namespace helper {
+
+OString escapeAll(
+    std::string_view rText, std::string_view rUnEscaped, std::string_view rEscaped )
+{
+    assert( rEscaped.size() == 2*rUnEscaped.size() );
+    OStringBuffer sReturn;
+    for ( size_t nIndex = 0; nIndex < rText.size(); ++nIndex )
+    {
+        size_t nUnEscapedOne = rUnEscaped.find(rText[nIndex]);
+        if( nUnEscapedOne != std::string_view::npos )
+        {
+            sReturn.append(rEscaped.substr(nUnEscapedOne*2,2));
+        }
+        else
+            sReturn.append(rText[nIndex]);
+    }
+    return sReturn.makeStringAndClear();
+}
+
+
+OString unEscapeAll(
+    std::string_view rText, std::string_view rEscaped, std::string_view rUnEscaped)
+{
+    assert( rEscaped.size() == 2*rUnEscaped.length() );
+    OStringBuffer sReturn;
+    const size_t nLength = rText.size();
+    for ( size_t nIndex = 0; nIndex < nLength; ++nIndex )
+    {
+        if( rText[nIndex] == '\\' && nIndex+1 < nLength )
+        {
+            size_t nEscapedOne = rEscaped.find(rText.substr(nIndex,2));
+            if( nEscapedOne != std::string_view::npos )
+            {
+                sReturn.append(rUnEscaped[nEscapedOne/2]);
+                ++nIndex;
+            }
+            else
+            {
+                sReturn.append(rText[nIndex]);
+            }
+        }
+        else
+            sReturn.append(rText[nIndex]);
+    }
+    return sReturn.makeStringAndClear();
+}
+
+
+OString QuotHTML(std::string_view rString)
+{
+    OStringBuffer sReturn;
+    for (size_t i = 0; i < rString.size(); ++i)
+    {
+        switch (rString[i])
+        {
+        case '<':
+            sReturn.append("&lt;");
+            break;
+        case '>':
+            sReturn.append("&gt;");
+            break;
+        case '"':
+            sReturn.append("&quot;");
+            break;
+        case '\'':
+            sReturn.append("&apos;");
+            break;
+        case '&':
+            if (o3tl::starts_with(rString.substr(i), "&amp;"))
+                sReturn.append('&');
+            else
+                sReturn.append("&amp;");
+            break;
+        default:
+            sReturn.append(rString[i]);
+            break;
+        }
+    }
+    return sReturn.makeStringAndClear();
+}
+
+OString UnQuotHTML( std::string_view rString )
+{
+    OStringBuffer sReturn;
+    for (size_t i = 0; i != rString.size();) {
+        auto tmp = rString.substr(i);
+        if (o3tl::starts_with(tmp, "&amp;")) {
+            sReturn.append('&');
+            i += RTL_CONSTASCII_LENGTH("&amp;");
+        } else if (o3tl::starts_with(tmp, "&lt;")) {
+            sReturn.append('<');
+            i += RTL_CONSTASCII_LENGTH("&lt;");
+        } else if (o3tl::starts_with(tmp, "&gt;")) {
+            sReturn.append('>');
+            i += RTL_CONSTASCII_LENGTH("&gt;");
+        } else if (o3tl::starts_with(tmp, "&quot;")) {
+            sReturn.append('"');
+            i += RTL_CONSTASCII_LENGTH("&quot;");
+        } else if (o3tl::starts_with(tmp, "&apos;")) {
+            sReturn.append('\'');
+            i += RTL_CONSTASCII_LENGTH("&apos;");
+        } else {
+            sReturn.append(rString[i]);
+            ++i;
+        }
+    }
+    return sReturn.makeStringAndClear();
+}
+
+bool isWellFormedXML( std::string_view text )
+{
+    xmlDocPtr doc;
+    bool result = true;
+
+    OString content = OString::Concat("<root>") + text + "</root>";
+    doc = xmlParseMemory(content.getStr(),static_cast<int>(content.getLength()));
+    if (doc == nullptr) {
+        result = false;
+    }
+    xmlFreeDoc(doc);
+    xmlCleanupParser();
+    return result;
+}
+
+//Convert xmlChar* to OString
+OString xmlStrToOString( const xmlChar* pString )
+{
+    xmlChar* pTemp = xmlStrdup( pString );
+    OString sResult = reinterpret_cast<char*>( pTemp );
+    xmlFree( pTemp );
+    return sResult;
+}
+
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/l10ntools/source/helpex.cxx b/l10ntools/source/helpex.cxx
new file mode 100644
index 000000000..97e574fc7
--- /dev/null
+++ b/l10ntools/source/helpex.cxx
@@ -0,0 +1,142 @@
+/* -*- 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 <sal/config.h>
+
+#include <iostream>
+#include <string>
+#include <cstring>
+
+#include <sal/main.h>
+
+#include <helpmerge.hxx>
+#include <common.hxx>
+#include <memory>
+
+#ifndef TESTDRIVER
+
+static void WriteUsage()
+{
+    std::cout
+        << (" Syntax: Helpex -[m]i FileIn -o FileOut [-m DataBase] [-l Lang]\n"
+            " FileIn + i:   Source file (*.xhp)\n"
+            " FileIn + -mi: File including paths of source files"
+            " (only for merge)\n"
+            " FileOut:  Destination file (*.*) or files (in case of -mi)\n"
+            " DataBase: Mergedata (*.po)\n"
+            " Lang: Restrict the handled languages; one element of\n"
+            " (de, en-US, ...) or all\n");
+}
+
+SAL_IMPLEMENT_MAIN_WITH_ARGS(argc, argv)
+{
+    bool hasNoError = true;
+    try
+    {
+        bool bMultiMerge = false;
+        for (int nIndex = 1; nIndex != argc; ++nIndex)
+        {
+            if (std::strcmp(argv[nIndex], "-mi") == 0)
+            {
+                argv[nIndex][1] = 'i';
+                argv[nIndex][2] = '\0';
+                bMultiMerge = true;
+                break;
+            }
+        }
+
+        common::HandledArgs aArgs;
+        if ( !common::handleArguments( argc, argv, aArgs) )
+        {
+            WriteUsage();
+            return 1;
+        }
+
+        if ( aArgs.m_bMergeMode )
+        {
+            if( bMultiMerge )
+            {
+                std::ifstream aInput( aArgs.m_sInputFile.getStr() );
+                if( !aInput.is_open() )
+                {
+                    std::cerr << "Helpex error: cannot open input file\n";
+                    return 1;
+                }
+                std::unique_ptr<MergeDataFile> pMergeDataFile;
+                if( aArgs.m_sLanguage != "qtz")
+                {
+                    pMergeDataFile.reset(new MergeDataFile(aArgs.m_sMergeSrc, "", false, false ));
+                }
+                std::string sTemp;
+                aInput >> sTemp;
+                while( !aInput.eof() )
+                {
+                    // coverity[tainted_data] - this is a build time tool
+                    const OString sXhpFile( sTemp.data(), static_cast<sal_Int32>(sTemp.length()) );
+                    HelpParser aParser( sXhpFile );
+                    const OString sOutput(
+                        aArgs.m_sOutputFile +
+                        sXhpFile.subView( sXhpFile.lastIndexOf('/') ));
+                    if( !aParser.Merge( sOutput,
+                        aArgs.m_sLanguage, pMergeDataFile.get() ))
+                    {
+                        hasNoError = false;
+                    }
+                    aInput >> sTemp;
+                }
+                aInput.close();
+            }
+            else
+            {
+                HelpParser aParser( aArgs.m_sInputFile );
+                std::unique_ptr<MergeDataFile> pMergeDataFile;
+                if( aArgs.m_sLanguage != "qtz")
+                {
+                    pMergeDataFile.reset(new MergeDataFile(aArgs.m_sMergeSrc, aArgs.m_sInputFile, false, false ));
+                }
+                hasNoError =
+                    aParser.Merge(
+                        aArgs.m_sOutputFile,
+                        aArgs.m_sLanguage, pMergeDataFile.get() );
+            }
+        }
+        else
+        {
+            HelpParser aParser( aArgs.m_sInputFile );
+            XMLFile xmlfile( OString('0') );
+            hasNoError =
+                HelpParser::CreatePO(
+                    aArgs.m_sOutputFile, aArgs.m_sInputFile,
+                    &xmlfile, "help" );
+        }
+    }
+    catch (std::exception& e)
+    {
+        std::cerr << "Helpex exception: " << e.what() << std::endl;
+        hasNoError = true;
+    }
+
+    if( hasNoError )
+        return 0;
+    else
+        return 1;
+}
+#endif
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/l10ntools/source/helpmerge.cxx b/l10ntools/source/helpmerge.cxx
new file mode 100644
index 000000000..42cdb6ce1
--- /dev/null
+++ b/l10ntools/source/helpmerge.cxx
@@ -0,0 +1,248 @@
+/* -*- 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 <sal/config.h>
+
+#include <fstream>
+
+#include <sal/log.hxx>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <helpmerge.hxx>
+#include <vector>
+
+#ifdef _WIN32
+#if !defined WIN32_LEAN_AND_MEAN
+# define WIN32_LEAN_AND_MEAN
+#endif
+#include <windows.h>
+#undef CopyFile
+#include <direct.h>
+#endif
+
+#include <export.hxx>
+#include <common.hxx>
+#include <helper.hxx>
+#include <po.hxx>
+
+#if OSL_DEBUG_LEVEL > 2
+void HelpParser::Dump(XMLHashMap* rElem_in)
+{
+    for (auto const& pos : *rElem_in)
+    {
+        Dump(pos.second,pos.first);
+    }
+}
+
+void HelpParser::Dump(LangHashMap* rElem_in,const OString & sKey_in)
+{
+    OString x;
+    OString y;
+    fprintf(stdout,"+------------%s-----------+\n",sKey_in.getStr() );
+    for (auto const& posn : *rElem_in)
+    {
+        x=posn.first;
+        y=posn.second->ToOString();
+        fprintf(stdout,"key=%s value=%s\n",x.getStr(),y.getStr());
+    }
+    fprintf(stdout,"+--------------------------+\n");
+}
+#endif
+
+HelpParser::HelpParser( const OString &rHelpFile )
+        : sHelpFile( rHelpFile )
+          {};
+
+/*****************************************************************************/
+bool HelpParser::CreatePO(
+/*****************************************************************************/
+    const OString &rPOFile_in, const OString &sHelpFile,
+    XMLFile* pXmlFile, std::string_view rGsi1){
+    SimpleXMLParser aParser;
+    //TODO: explicit BOM handling?
+
+    if (!aParser.Execute( sHelpFile, pXmlFile ))
+    {
+        printf(
+            "%s: %s\n",
+            sHelpFile.getStr(),
+            aParser.GetError().m_sMessage.getStr());
+        exit(-1);
+    }
+    pXmlFile->Extract();
+    if( !pXmlFile->CheckExportStatus() ){
+        return true;
+    }
+
+    PoOfstream aPoOutput( rPOFile_in, PoOfstream::APP );
+
+    if (!aPoOutput.isOpen()) {
+        fprintf(stdout,"Can't open file %s\n",rPOFile_in.getStr());
+        return false;
+    }
+
+    XMLHashMap* aXMLStrHM = pXmlFile->GetStrings();
+
+    std::vector<OString> order = pXmlFile->getOrder();
+
+    for (auto const& pos : order)
+    {
+        auto posm = aXMLStrHM->find(pos);
+        LangHashMap* pElem = posm->second;
+
+        XMLElement* pXMLElement = (*pElem)[ "en-US" ];
+
+        if( pXMLElement != nullptr )
+        {
+            OString data(
+                pXMLElement->ToOString().
+                    replaceAll("\n",OString()).
+                    replaceAll("\t",OString()).trim());
+
+            common::writePoEntry(
+                "Helpex", aPoOutput, sHelpFile, rGsi1,
+                posm->first, OString(), OString(), data);
+
+            pXMLElement=nullptr;
+        }
+        else
+        {
+            // If this is something totally unexpected, wouldn't an assert() be in order?
+            // On the other hand, if this is expected, why the printf?
+            fprintf(stdout,"\nDBG: NullPointer in HelpParser::CreatePO, File %s\n", sHelpFile.getStr());
+        }
+    }
+    aPoOutput.close();
+
+    return true;
+}
+
+bool HelpParser::Merge( const OString &rDestinationFile,
+    const OString& rLanguage , MergeDataFile* pMergeDataFile )
+{
+    SimpleXMLParser aParser;
+
+    //TODO: explicit BOM handling?
+
+    XMLFile xmlfile( OString('0') );
+    if (!aParser.Execute( sHelpFile, &xmlfile))
+    {
+        SAL_WARN("l10ntools", "could not parse " << sHelpFile);
+        return false;
+    }
+    MergeSingleFile( &xmlfile , pMergeDataFile , rLanguage , rDestinationFile );
+    return true;
+}
+
+void HelpParser::MergeSingleFile( XMLFile* file , MergeDataFile* pMergeDataFile , const OString& sLanguage ,
+                                  OString const & sPath )
+{
+    file->Extract();
+
+    XMLHashMap* aXMLStrHM = file->GetStrings();
+    static ResData s_ResData("","");
+    s_ResData.sResTyp   = "help";
+
+    std::vector<OString> order = file->getOrder();
+
+    for (auto const& pos : order) // Merge every l10n related string in the same order as export
+    {
+        auto posm = aXMLStrHM->find(pos);
+        LangHashMap*  aLangHM = posm->second;
+#if OSL_DEBUG_LEVEL > 2
+        printf("*********************DUMPING HASHMAP***************************************");
+        Dump(aXMLStrHM);
+        printf("DBG: sHelpFile = %s\n",sHelpFile.getStr() );
+#endif
+
+        s_ResData.sGId      =  posm->first;
+        s_ResData.sFilename  =  sHelpFile;
+
+        ProcessHelp( aLangHM , sLanguage, &s_ResData , pMergeDataFile );
+    }
+
+    file->Write(sPath);
+}
+
+/* ProcessHelp method: search for en-US entry and replace it with the current language*/
+void HelpParser::ProcessHelp( LangHashMap* aLangHM , const OString& sCur , ResData *pResData , MergeDataFile* pMergeDataFile ){
+
+    XMLElement*   pXMLElement = nullptr;
+
+    if( sCur.equalsIgnoreAsciiCase("en-US") )
+        return;
+
+    pXMLElement = (*aLangHM)[ "en-US" ];
+    if( pXMLElement == nullptr )
+    {
+        printf("Error: Can't find en-US entry\n");
+        return;
+    }
+
+    OString sNewText;
+    OString sNewdata;
+    OString sSourceText(
+    pXMLElement->ToOString().
+        replaceAll(
+            "\n",
+            OString()).
+        replaceAll(
+            "\t",
+            OString()));
+    // re-add spaces to the beginning of translated string,
+    // important for indentation of Basic code examples
+    sal_Int32 nPreSpaces = 0;
+    sal_Int32 nLen = sSourceText.getLength();
+    while ( (nPreSpaces < nLen) && (sSourceText[nPreSpaces] == ' ') )
+        nPreSpaces++;
+    if( sCur == "qtz" )
+    {
+        sNewText = MergeEntrys::GetQTZText(*pResData, sSourceText);
+        sNewdata = sNewText;
+    }
+    else if( pMergeDataFile )
+    {
+        MergeEntrys *pEntrys = pMergeDataFile->GetMergeEntrys( pResData );
+        if( pEntrys != nullptr)
+        {
+            pEntrys->GetText( sNewText, sCur, true );
+            if (helper::isWellFormedXML(XMLUtil::QuotHTML(sNewText)))
+            {
+                sNewdata = sSourceText.subView(0,nPreSpaces) + sNewText;
+            }
+        }
+    }
+    if (!sNewdata.isEmpty())
+    {
+        XMLData *data = new XMLData( sNewdata , nullptr ); // Add new one
+        pXMLElement->RemoveAndDeleteAllChildren();
+        pXMLElement->AddChild( data );
+        aLangHM->erase( sCur );
+    }
+    else
+    {
+        SAL_WARN(
+            "l10ntools",
+            "Can't find GID=" << pResData->sGId << " TYP=" << pResData->sResTyp);
+    }
+    pXMLElement->ChangeLanguageTag(sCur);
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/l10ntools/source/idxdict/idxdict.cxx b/l10ntools/source/idxdict/idxdict.cxx
new file mode 100644
index 000000000..6d2a22b3d
--- /dev/null
+++ b/l10ntools/source/idxdict/idxdict.cxx
@@ -0,0 +1,89 @@
+/* -*- 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/.
+ */
+
+#include <cerrno>
+#include <iostream>
+#include <fstream>
+#include <string>
+#include <map>
+#include <stdlib.h>
+#include <string.h>
+
+const int MAXLINE = 1024*64;
+
+int main(int argc, char *argv[])
+{
+        if (argc != 3 || strcmp(argv[1],"-o"))
+        {
+                std::cout << "Usage: idxdict -o outputfile < input\n";
+                ::exit(99);
+        }
+        // This call improves performance by approx 5x
+        std::ios_base::sync_with_stdio(false);
+
+        const char * outputFile(argv[2]);
+        char inputBuffer[MAXLINE];
+        std::multimap<std::string, size_t> entries;
+        std::multimap<std::string,size_t>::iterator ret(entries.begin());
+
+        std::cin.getline(inputBuffer, MAXLINE);
+        const std::string encoding(inputBuffer);
+        size_t currentOffset(encoding.size()+1);
+        while (true)
+        {
+                // Extract the next word, but not the entry count
+                std::cin.getline(inputBuffer, MAXLINE, '|');
+
+                if (std::cin.eof()) break;
+
+                std::string word(inputBuffer);
+                ret = entries.insert(ret, std::pair<std::string, size_t>(word, currentOffset));
+                currentOffset += word.size() + 1;
+                // Next is the entry count
+                std::cin.getline(inputBuffer, MAXLINE);
+                if (!std::cin.good())
+                {
+                        std::cerr << "Unable to read entry - insufficient buffer?.\n";
+                        exit(99);
+                }
+                currentOffset += strlen(inputBuffer)+1;
+                char * endptr;
+                errno = 0;
+                int entryCount(strtol(inputBuffer, &endptr, 10));
+                if (errno != 0 || endptr == inputBuffer || *endptr != '\0')
+                {
+                    std::cerr
+                        << "Unable to read count from \"" << inputBuffer
+                        << "\" input.\n";
+                    exit(99);
+                }
+                for (int i(0); i < entryCount; ++i)
+                {
+                        std::cin.getline(inputBuffer, MAXLINE);
+                        currentOffset += strlen(inputBuffer)+1;
+                }
+        }
+
+        // Use binary mode to prevent any translation of LF to CRLF on Windows
+        std::ofstream outputStream(outputFile, std::ios_base::binary| std::ios_base::trunc|std::ios_base::out);
+        if (!outputStream.is_open())
+        {
+                std::cerr << "Unable to open output file " << outputFile << std::endl;
+                ::exit(99);
+        }
+
+        outputStream << encoding << '\n' << entries.size() << '\n';
+
+        for (auto const& entry : entries)
+        {
+                outputStream << entry.first << '|' << entry.second << '\n';
+        }
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/l10ntools/source/lngex.cxx b/l10ntools/source/lngex.cxx
new file mode 100644
index 000000000..2d7c413ad
--- /dev/null
+++ b/l10ntools/source/lngex.cxx
@@ -0,0 +1,46 @@
+/* -*- 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 <sal/config.h>
+
+#include <sal/main.h>
+
+#include <common.hxx>
+
+#include <lngmerge.hxx>
+
+SAL_IMPLEMENT_MAIN_WITH_ARGS(argc, argv)
+{
+    common::HandledArgs aArgs;
+    if (!common::handleArguments(argc, argv, aArgs))
+    {
+        common::writeUsage("ulfex", "*.ulf");
+        return 1;
+    }
+
+    LngParser aParser(aArgs.m_sInputFile);
+    if (aArgs.m_bMergeMode)
+        aParser.Merge(aArgs.m_sMergeSrc, aArgs.m_sOutputFile, aArgs.m_sLanguage);
+    else
+        aParser.CreatePO(aArgs.m_sOutputFile);
+
+    return 0;
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/l10ntools/source/lngmerge.cxx b/l10ntools/source/lngmerge.cxx
new file mode 100644
index 000000000..33d928dbe
--- /dev/null
+++ b/l10ntools/source/lngmerge.cxx
@@ -0,0 +1,280 @@
+/* -*- 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 <sal/config.h>
+
+#include <o3tl/string_view.hxx>
+
+#include <cstddef>
+#include <iostream>
+#include <memory>
+#include <string>
+
+#include <common.hxx>
+#include <po.hxx>
+#include <lngmerge.hxx>
+
+namespace {
+
+bool lcl_isNextGroup(OString &sGroup_out, std::string_view sLineTrim)
+{
+    if (o3tl::starts_with(sLineTrim, "[") && o3tl::ends_with(sLineTrim, "]"))
+    {
+        sLineTrim = o3tl::getToken(sLineTrim, 1, '[');
+        sLineTrim = o3tl::getToken(sLineTrim, 0, ']');
+        sGroup_out = OString(o3tl::trim(sLineTrim));
+        return true;
+    }
+    return false;
+}
+
+void lcl_RemoveUTF8ByteOrderMarker( OString &rString )
+{
+    if( rString.getLength() >= 3 && rString[0] == '\xEF' &&
+        rString[1] == '\xBB' && rString[2] == '\xBF' )
+    {
+        rString = rString.copy(3);
+    }
+}
+
+}
+
+
+
+LngParser::LngParser(const OString &rLngFile)
+    : sSource( rLngFile )
+{
+    std::ifstream aStream(sSource.getStr());
+    if (!aStream.is_open())
+        return;
+
+    bool bFirstLine = true;
+    std::string s;
+    std::getline(aStream, s);
+    while (!aStream.eof())
+    {
+        OString sLine(s.data(), s.length());
+
+        if( bFirstLine )
+        {
+            // Always remove UTF8 BOM from the first line
+            lcl_RemoveUTF8ByteOrderMarker( sLine );
+            bFirstLine = false;
+        }
+
+        mvLines.push_back( sLine );
+        std::getline(aStream, s);
+    }
+    mvLines.push_back( OString() );
+}
+
+LngParser::~LngParser()
+{
+}
+
+void LngParser::CreatePO( const OString &rPOFile )
+{
+    PoOfstream aPOStream( rPOFile, PoOfstream::APP );
+    if (!aPOStream.isOpen()) {
+        std::cerr << "Ulfex error: Can't open po file:" << rPOFile << "\n";
+    }
+
+    size_t nPos  = 0;
+    bool bStart = true;
+    OString sGroup, sLine;
+    OStringHashMap Text;
+    OString sID;
+
+    while( nPos < mvLines.size() ) {
+        sLine = mvLines[ nPos++ ];
+        while( nPos < mvLines.size() && !isNextGroup( sGroup , sLine ) ) {
+            ReadLine( sLine , Text );
+            sID = sGroup;
+            sLine = mvLines[ nPos++ ];
+        }
+        if( bStart ) {
+            bStart = false;
+            sID = sGroup;
+        }
+        else {
+            WritePO( aPOStream , Text , sSource , sID );
+        }
+        Text.erase("x-comment");
+    }
+    aPOStream.close();
+}
+
+void LngParser::WritePO(PoOfstream &aPOStream,
+    OStringHashMap &rText_inout, const OString &rActFileName,
+    const OString &rID)
+{
+    common::writePoEntry(
+        "Ulfex", aPOStream, rActFileName, "LngText",
+        rID, OString(), rText_inout.count("x-comment") ? rText_inout["x-comment"] : OString(), rText_inout["en-US"]);
+}
+
+bool LngParser::isNextGroup(OString &sGroup_out, std::string_view sLine_in)
+{
+    return lcl_isNextGroup(sGroup_out, o3tl::trim(sLine_in));
+}
+
+void LngParser::ReadLine(std::string_view rLine_in,
+        OStringHashMap &rText_inout)
+{
+    if (!o3tl::starts_with(rLine_in, " *") && !o3tl::starts_with(rLine_in, "/*"))
+    {
+        OString sLang(o3tl::trim(o3tl::getToken(rLine_in, 0, '=')));
+        if (!sLang.isEmpty()) {
+            OString sText(o3tl::getToken(rLine_in,1, '"'));
+            rText_inout[sLang] = sText;
+        }
+    }
+}
+
+void LngParser::Merge(
+    const OString &rPOFile,
+    const OString &rDestinationFile,
+    std::string_view rLanguage )
+{
+    std::ofstream aDestination(
+        rDestinationFile.getStr(), std::ios_base::out | std::ios_base::trunc);
+
+    MergeDataFile aMergeDataFile( rPOFile, sSource, false, true );
+    if( o3tl::equalsIgnoreAsciiCase(rLanguage, "ALL") )
+        aLanguages = aMergeDataFile.GetLanguages();
+
+    size_t nPos = 0;
+    bool bGroup = false;
+    OString sGroup;
+
+    // seek to next group
+    while ( nPos < mvLines.size() && !bGroup )
+        bGroup = lcl_isNextGroup(sGroup, o3tl::trim(mvLines[nPos++]));
+
+    while ( nPos < mvLines.size()) {
+        OStringHashMap Text;
+        OString sID( sGroup );
+        std::size_t nLastLangPos = 0;
+
+        ResData aResData( sID, sSource );
+        aResData.sResTyp = "LngText";
+        MergeEntrys *pEntrys = aMergeDataFile.GetMergeEntrys( &aResData );
+        // read languages
+        bGroup = false;
+
+        OString sLanguagesDone;
+
+        while ( nPos < mvLines.size() && !bGroup )
+        {
+            const OString sLine{ mvLines[nPos].trim() };
+            if ( lcl_isNextGroup(sGroup, sLine) )
+            {
+                bGroup = true;
+                nPos ++;
+                sLanguagesDone = "";
+            }
+            else
+            {
+                sal_Int32 n = 0;
+                OString sLang(sLine.getToken(0, '=', n));
+                if (n == -1 || static_cast<bool>(sLine.match("/*")))
+                {
+                    ++nPos;
+                }
+                else
+                {
+                    sLang = sLang.trim();
+
+                    OString sSearch{ ";" + sLang + ";" };
+
+                    if ( sLanguagesDone.indexOf( sSearch ) != -1 ) {
+                        mvLines.erase( mvLines.begin() + nPos );
+                    }
+                    if( pEntrys )
+                    {
+                        if( !sLang.isEmpty() )
+                        {
+                            OString sNewText;
+                            pEntrys->GetText( sNewText, sLang, true );
+                            if( sLang == "qtz" )
+                                continue;
+
+                            if ( !sNewText.isEmpty()) {
+                                mvLines[ nPos ] = sLang
+                                    + " = \""
+                                    // escape quotes, unescape double escaped quotes fdo#56648
+                                    + sNewText.replaceAll("\"","\\\"").replaceAll("\\\\\"","\\\"")
+                                    + "\"";
+                                Text[ sLang ] = sNewText;
+                            }
+                        }
+                        nLastLangPos = nPos;
+                        nPos ++;
+                        sLanguagesDone += sSearch;
+                    }
+                    else {
+                        nLastLangPos = nPos;
+                        nPos ++;
+                        sLanguagesDone += sSearch;
+                    }
+                }
+            }
+        }
+        OString sCur;
+        if ( nLastLangPos )
+        {
+            for(size_t n = 0; n < aLanguages.size(); ++n)
+            {
+                sCur = aLanguages[ n ];
+                if( !sCur.equalsIgnoreAsciiCase("en-US") && Text[sCur].isEmpty() && pEntrys )
+                {
+
+                    OString sNewText;
+                    pEntrys->GetText( sNewText, sCur, true );
+                    if( sCur == "qtz" )
+                        continue;
+                    if ( !sNewText.isEmpty() && sCur != "x-comment")
+                    {
+                        const OString sLine { sCur
+                            + " = \""
+                            // escape quotes, unescape double escaped quotes fdo#56648
+                            + sNewText.replaceAll("\"","\\\"").replaceAll("\\\\\"","\\\"")
+                            + "\"" };
+
+                        nLastLangPos++;
+                        nPos++;
+
+                        if ( nLastLangPos < mvLines.size() ) {
+                            mvLines.insert( mvLines.begin() + nLastLangPos, sLine );
+                        } else {
+                            mvLines.push_back( sLine );
+                        }
+                    }
+                }
+            }
+        }
+    }
+
+    for ( size_t i = 0; i < mvLines.size(); ++i )
+        aDestination << mvLines[i] << '\n';
+
+    aDestination.close();
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/l10ntools/source/localize.cxx b/l10ntools/source/localize.cxx
new file mode 100644
index 000000000..2ec012361
--- /dev/null
+++ b/l10ntools/source/localize.cxx
@@ -0,0 +1,512 @@
+/* -*- 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 <sal/config.h>
+
+#include <cassert>
+#include <cstdlib>
+#include <iostream>
+#include <string>
+#include <string_view>
+#include <map>
+#include <vector>
+#include <algorithm>
+
+#include <o3tl/string_view.hxx>
+#include <osl/file.h>
+#include <osl/file.hxx>
+#include <osl/thread.h>
+#include <rtl/string.h>
+#include <rtl/string.hxx>
+#include <rtl/textcvt.h>
+#include <rtl/strbuf.hxx>
+#include <rtl/ustring.h>
+#include <rtl/ustring.hxx>
+#include <sal/macros.h>
+#include <sal/main.h>
+#include <sal/types.h>
+
+#include <po.hxx>
+
+namespace {
+
+bool matchList(
+    std::u16string_view rUrl, const std::u16string_view* pList, size_t nLength)
+{
+    for (size_t i = 0; i != nLength; ++i) {
+        if (o3tl::ends_with(rUrl, pList[i])) {
+            return true;
+        }
+    }
+    return false;
+}
+
+bool passesNegativeList(std::u16string_view rUrl) {
+    static const std::u16string_view list[] = {
+        u"/desktop/test/deployment/passive/help/en/help.tree",
+        u"/desktop/test/deployment/passive/help/en/main.xhp",
+        u"/dictionaries.xcu",
+        u"/dictionaries/da_DK/help/da/help.tree",
+        (u"/dictionaries/da_DK/help/da/"
+         "org.openoffice.da.hunspell.dictionaries/page1.xhp"),
+        (u"/dictionaries/da_DK/help/da/"
+         "org.openoffice.da.hunspell.dictionaries/page2.xhp"),
+        u"/dictionaries/hu_HU/help/hu/help.tree",
+        (u"/dictionaries/hu_HU/help/hu/"
+         "org.openoffice.hu.hunspell.dictionaries/page1.xhp"),
+        u"/officecfg/registry/data/org/openoffice/Office/Accelerators.xcu"
+    };
+    return !matchList(rUrl, list, SAL_N_ELEMENTS(list));
+}
+
+bool passesPositiveList(std::u16string_view rUrl) {
+    static const std::u16string_view list[] = {
+        u"/description.xml"
+    };
+    return matchList(rUrl, list, SAL_N_ELEMENTS(list));
+}
+
+void handleCommand(
+    std::string_view rInPath, std::string_view rOutPath,
+    const std::string& rExecutable)
+{
+    OStringBuffer buf;
+    if (rExecutable == "uiex" || rExecutable == "hrcex")
+    {
+        auto const env = getenv("SRC_ROOT");
+        assert(env != nullptr);
+        buf.append(env);
+        buf.append("/solenv/bin/");
+    }
+    else
+    {
+        auto const env = getenv("WORKDIR_FOR_BUILD");
+        assert(env != nullptr);
+        buf.append(env);
+        buf.append("/LinkTarget/Executable/");
+    }
+    buf.append(rExecutable.data());
+    buf.append(" -i ");
+    buf.append(rInPath);
+    buf.append(" -o ");
+    buf.append(rOutPath);
+
+    const OString cmd = buf.makeStringAndClear();
+    if (system(cmd.getStr()) != 0)
+    {
+        std::cerr << "Error: Failed to execute " << cmd << '\n';
+        throw false; //TODO
+    }
+}
+
+void InitPoFile(
+    std::string_view rProject, std::string_view rInPath,
+    std::string_view rPotDir, const OString& rOutPath )
+{
+    //Create directory for po file
+    {
+        OUString outDir =
+            OStringToOUString(
+                rPotDir.substr(0,rPotDir.rfind('/')), RTL_TEXTENCODING_UTF8);
+        OUString outDirUrl;
+        if (osl::FileBase::getFileURLFromSystemPath(outDir, outDirUrl)
+            != osl::FileBase::E_None)
+        {
+            std::cerr
+                << ("Error: Cannot convert pathname to URL in " __FILE__
+                    ", in line ")
+                << __LINE__ << "\n       outDir: "
+                << outDir
+                << "\n";
+            throw false; //TODO
+        }
+        osl::Directory::createPath(outDirUrl);
+    }
+
+    //Add header to the po file
+    PoOfstream aPoOutPut;
+    aPoOutPut.open(rOutPath.getStr());
+    if (!aPoOutPut.isOpen())
+    {
+        std::cerr
+            << "Error: Cannot open po file "
+            << rOutPath << "\n";
+        throw false; //TODO
+    }
+
+    const size_t nProjectInd = rInPath.find(rProject);
+    const std::string_view relativPath =
+        rInPath.substr(nProjectInd, rInPath.rfind('/')- nProjectInd);
+
+    PoHeader aTmp(relativPath);
+    aPoOutPut.writeHeader(aTmp);
+    aPoOutPut.close();
+}
+
+bool fileExists(const OString& fileName)
+{
+    FILE *f = fopen(fileName.getStr(), "r");
+
+    if (f != nullptr)
+    {
+        fclose(f);
+        return true;
+    }
+
+    return false;
+}
+
+OString gDestRoot;
+
+bool handleFile(std::string_view rProject, const OUString& rUrl, std::string_view rPotDir)
+{
+    struct Command {
+        std::u16string_view extension;
+        std::string executable;
+        bool positive;
+    };
+    static Command const commands[] = {
+        { std::u16string_view(u".hrc"), "hrcex", false },
+        { std::u16string_view(u".ulf"), "ulfex", false },
+        { std::u16string_view(u".xcu"), "cfgex", false },
+        { std::u16string_view(u".xrm"), "xrmex", false },
+        { std::u16string_view(u"description.xml"), "xrmex", true },
+        { std::u16string_view(u".xhp"), "helpex", false },
+        { std::u16string_view(u".properties"), "propex", false },
+        { std::u16string_view(u".ui"), "uiex", false },
+        { std::u16string_view(u".tree"), "treex", false } };
+    for (size_t i = 0; i != SAL_N_ELEMENTS(commands); ++i)
+    {
+        if (rUrl.endsWith(commands[i].extension) &&
+            (commands[i].executable != "propex" || rUrl.indexOf("en_US") != -1))
+        {
+            if (commands[i].positive ? passesPositiveList(rUrl) : passesNegativeList(rUrl))
+            {
+                //Get input file path
+                OString sInPath;
+                {
+                    OUString sInPathTmp;
+                    if (osl::FileBase::getSystemPathFromFileURL(rUrl, sInPathTmp) !=
+                        osl::FileBase::E_None)
+                    {
+                        std::cerr << "osl::FileBase::getSystemPathFromFileURL(" << rUrl << ") failed\n";
+                        throw false; //TODO
+                    }
+                    sInPath = OUStringToOString( sInPathTmp, RTL_TEXTENCODING_UTF8 );
+                }
+                OString sOutPath;
+                bool bCreatedFile = false;
+                bool bSimpleModuleCase = commands[i].executable == "uiex" || commands[i].executable == "hrcex";
+                if (bSimpleModuleCase)
+                    sOutPath = gDestRoot + "/" + rProject + "/messages.pot";
+                else
+                    sOutPath = OString::Concat(rPotDir) + ".pot";
+
+                if (!fileExists(sOutPath))
+                {
+                    InitPoFile(rProject, sInPath, rPotDir, sOutPath);
+                    bCreatedFile = true;
+                }
+                handleCommand(sInPath, sOutPath, commands[i].executable);
+
+                {
+                    //Delete pot file if it contain only the header
+                    PoIfstream aPOStream(sOutPath);
+                    PoEntry aPO;
+                    aPOStream.readEntry( aPO );
+                    bool bDel = aPOStream.eof();
+                    aPOStream.close();
+
+                    if (bDel)
+                    {
+                        if ( system(OString("rm " + sOutPath).getStr()) != 0 )
+                        {
+                            std::cerr
+                                << "Error: Cannot remove entryless pot file: "
+                                << sOutPath << "\n";
+                            throw false; //TODO
+                        }
+                    }
+                    else if (bCreatedFile && bSimpleModuleCase)
+                    {
+                        // add one stock Add, Cancel, Close, Help, No, OK, Yes entry to each module.po
+                        // and duplicates in .ui files then filtered out by solenv/bin/uiex
+
+                        std::ofstream aOutPut;
+                        aOutPut.open(sOutPath.getStr(), std::ios_base::out | std::ios_base::app);
+
+                        aOutPut << "#. wH3TZ\nmsgctxt \"stock\"\nmsgid \"_Add\"\nmsgstr \"\"\n\n";
+                        aOutPut << "#. S9dsC\nmsgctxt \"stock\"\nmsgid \"_Apply\"\nmsgstr \"\"\n\n";
+                        aOutPut << "#. TMo6G\nmsgctxt \"stock\"\nmsgid \"_Cancel\"\nmsgstr \"\"\n\n";
+                        aOutPut << "#. MRCkv\nmsgctxt \"stock\"\nmsgid \"_Close\"\nmsgstr \"\"\n\n";
+                        aOutPut << "#. nvx5t\nmsgctxt \"stock\"\nmsgid \"_Delete\"\nmsgstr \"\"\n\n";
+                        aOutPut << "#. YspCj\nmsgctxt \"stock\"\nmsgid \"_Edit\"\nmsgstr \"\"\n\n";
+                        aOutPut << "#. imQxr\nmsgctxt \"stock\"\nmsgid \"_Help\"\nmsgstr \"\"\n\n";
+                        aOutPut << "#. RbjyB\nmsgctxt \"stock\"\nmsgid \"_New\"\nmsgstr \"\"\n\n";
+                        aOutPut << "#. dx2yy\nmsgctxt \"stock\"\nmsgid \"_No\"\nmsgstr \"\"\n\n";
+                        aOutPut << "#. M9DsL\nmsgctxt \"stock\"\nmsgid \"_OK\"\nmsgstr \"\"\n\n";
+                        aOutPut << "#. VtJS9\nmsgctxt \"stock\"\nmsgid \"_Remove\"\nmsgstr \"\"\n\n";
+                        aOutPut << "#. C69Fy\nmsgctxt \"stock\"\nmsgid \"_Reset\"\nmsgstr \"\"\n\n";
+                        aOutPut << "#. mgpxh\nmsgctxt \"stock\"\nmsgid \"_Yes\"\nmsgstr \"\"\n";
+
+                        aOutPut.close();
+                    }
+                }
+
+
+                return true;
+            }
+            break;
+        }
+    }
+    return false;
+}
+
+void handleFilesOfDir(
+    std::vector<OUString>& aFiles, std::string_view rProject,
+    std::string_view rPotDir )
+{
+    ///Handle files in lexical order
+    std::sort(aFiles.begin(), aFiles.end());
+
+    for (auto const& elem : aFiles)
+        handleFile(rProject, elem, rPotDir);
+}
+
+bool includeProject(std::string_view rProject) {
+    static const char *projects[] = {
+        "include",
+        "accessibility",
+        "avmedia",
+        "basctl",
+        "basic",
+        "chart2",
+        "connectivity",
+        "cui",
+        "dbaccess",
+        "desktop",
+        "dictionaries",
+        "editeng",
+        "extensions",
+        "extras",
+        "filter",
+        "forms",
+        "formula",
+        "fpicker",
+        "framework",
+        "helpcontent2",
+        "instsetoo_native",
+        "librelogo",
+        "mysqlc",
+        "nlpsolver",
+        "officecfg",
+        "oox",
+        "readlicense_oo",
+        "reportbuilder",
+        "reportdesign",
+        "sc",
+        "scaddins",
+        "sccomp",
+        "scp2",
+        "sd",
+        "sdext",
+        "setup_native",
+        "sfx2",
+        "shell",
+        "starmath",
+        "svl",
+        "svtools",
+        "svx",
+        "sw",
+        "swext",
+        "sysui",
+        "uui",
+        "vcl",
+        "wizards",
+        "writerperfect",
+        "xmlsecurity" };
+    for (size_t i = 0; i != SAL_N_ELEMENTS(projects); ++i) {
+        if (rProject == projects[i]) {
+            return true;
+        }
+    }
+    return false;
+}
+
+/// Handle one directory in the hierarchy.
+///
+/// Ignores symlinks and instead explicitly descends into clone/* or src/*,
+/// as the Cygwin symlinks are not supported by osl::Directory on Windows.
+///
+/// @param rUrl the absolute file URL of this directory
+///
+/// @param nLevel 0 if this is the root directory (core repository)
+/// that contains the individual modules. 1 if it is a toplevel module and
+/// larger values for the subdirectories.
+///
+/// @param rProject the name of the project (empty and ignored if nLevel <= 0)
+/// @param rPotDir the path of pot directory
+void handleDirectory(
+    const OUString& rUrl, int nLevel,
+    const OString& rProject, const OString& rPotDir)
+{
+    osl::Directory dir(rUrl);
+    if (dir.open() != osl::FileBase::E_None) {
+        std::cerr
+            << "Error: Cannot open directory: " << rUrl << '\n';
+        throw false; //TODO
+    }
+    std::vector<OUString> aFileNames;
+    std::map<OUString, std::map<OString, OString>> aSubDirs;
+    for (;;) {
+        osl::DirectoryItem item;
+        osl::FileBase::RC e = dir.getNextItem(item);
+        if (e == osl::FileBase::E_NOENT) {
+            break;
+        }
+        if (e != osl::FileBase::E_None) {
+            std::cerr << "Error: Cannot read directory\n";
+            throw false; //TODO
+        }
+        osl::FileStatus stat(
+            osl_FileStatus_Mask_Type | osl_FileStatus_Mask_FileName
+            | osl_FileStatus_Mask_FileURL);
+        if (item.getFileStatus(stat) != osl::FileBase::E_None) {
+            std::cerr << "Error: Cannot get file status\n";
+            throw false; //TODO
+        }
+        const OString sDirName =
+            OUStringToOString(stat.getFileName(),RTL_TEXTENCODING_UTF8);
+        switch (nLevel)
+        {
+            case 0: // a root directory
+                if (stat.getFileType() == osl::FileStatus::Directory && includeProject(sDirName))
+                    aSubDirs[stat.getFileURL()][sDirName] = rPotDir + "/" + sDirName;
+                break;
+            default:
+                if (stat.getFileType() == osl::FileStatus::Directory)
+                    aSubDirs[stat.getFileURL()][rProject] = rPotDir + "/" + sDirName;
+                else
+                    aFileNames.push_back(stat.getFileURL());
+                break;
+        }
+    }
+
+    OString aPotDir(rPotDir);
+    if( !aFileNames.empty() )
+    {
+        OString aProject(rProject);
+        if (aProject == "include" && nLevel > 1)
+        {
+            aProject = aPotDir.copy(aPotDir.lastIndexOf('/') + 1);
+            aPotDir = aPotDir.subView(0, aPotDir.lastIndexOf("include")) + aProject + "/messages";
+        }
+        if (aProject != "include")
+        {
+            handleFilesOfDir(aFileNames, aProject, aPotDir);
+        }
+    }
+
+    if (dir.close() != osl::FileBase::E_None) {
+        std::cerr << "Error: Cannot close directory\n";
+        throw false; //TODO
+    }
+
+    for (auto const& elem : aSubDirs)
+        handleDirectory(elem.first, nLevel + 1, elem.second.begin()->first,
+                        elem.second.begin()->second);
+
+    //Remove empty pot directory
+    OUString sPoPath =
+        OStringToOUString(
+            aPotDir.subView(0,aPotDir.lastIndexOf('/')), RTL_TEXTENCODING_UTF8);
+    OUString sPoUrl;
+    if (osl::FileBase::getFileURLFromSystemPath(sPoPath, sPoUrl)
+        != osl::FileBase::E_None)
+    {
+        std::cerr
+            << ("Error: Cannot convert pathname to URL in " __FILE__
+                ", in line ")
+            << __LINE__ << "\n"
+            << sPoPath
+            << "\n";
+        throw false; //TODO
+    }
+    osl::Directory::remove(sPoUrl);
+}
+
+void handleProjects(char const * sSourceRoot, char const * sDestRoot)
+{
+    OUString root16;
+    if (!rtl_convertStringToUString(
+            &root16.pData, sSourceRoot, rtl_str_getLength(sSourceRoot),
+            osl_getThreadTextEncoding(),
+            (RTL_TEXTTOUNICODE_FLAGS_UNDEFINED_ERROR
+             | RTL_TEXTTOUNICODE_FLAGS_MBUNDEFINED_ERROR
+             | RTL_TEXTTOUNICODE_FLAGS_INVALID_ERROR)))
+    {
+        std::cerr << "Error: Cannot convert pathname to UTF-16\n";
+        throw false; //TODO
+    }
+    OUString rootUrl;
+    if (osl::FileBase::getFileURLFromSystemPath(root16, rootUrl)
+        != osl::FileBase::E_None)
+    {
+        std::cerr
+            << ("Error: Cannot convert pathname to URL in " __FILE__
+                ", in line ")
+            << __LINE__ << "\n       root16: "
+            << root16
+            << "\n";
+        throw false; //TODO
+    }
+    gDestRoot = OString(sDestRoot);
+    handleDirectory(rootUrl, 0, OString(), gDestRoot);
+}
+}
+
+SAL_IMPLEMENT_MAIN_WITH_ARGS(argc, argv)
+{
+    try
+    {
+        if (argc != 3)
+        {
+            std::cerr
+                << ("localize (c)2001 by Sun Microsystems\n\n"
+                    "As part of the L10N framework, localize extracts en-US\n"
+                    "strings for translation out of the toplevel modules defined\n"
+                    "in projects array in l10ntools/source/localize.cxx.\n\n"
+                    "Syntax: localize <source-root> <outfile>\n");
+            exit(EXIT_FAILURE);
+        }
+        handleProjects(argv[1],argv[2]);
+    }
+    catch (std::exception& e)
+    {
+        std::cerr << "exception: " << e.what() << std::endl;
+        return EXIT_FAILURE;
+    }
+    catch (bool) //TODO
+    {
+        return EXIT_FAILURE;
+    }
+    return EXIT_SUCCESS;
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/l10ntools/source/merge.cxx b/l10ntools/source/merge.cxx
new file mode 100644
index 000000000..588cb73d8
--- /dev/null
+++ b/l10ntools/source/merge.cxx
@@ -0,0 +1,343 @@
+/* -*- 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 <sal/config.h>
+#include <sal/log.hxx>
+
+#include <algorithm>
+#include <cstdlib>
+#include <fstream>
+#include <iostream>
+#include <string>
+#include <vector>
+
+#include <export.hxx>
+#include <po.hxx>
+
+namespace
+{
+    OString lcl_NormalizeFilename(std::string_view rFilename)
+    {
+        size_t idx1 = rFilename.rfind( '\\' );
+        size_t idx2 = rFilename.rfind( '/' );
+        if (idx1 == std::string_view::npos && idx2 == std::string_view::npos)
+            return OString(rFilename);
+        if (idx1 == std::string_view::npos)
+            idx1 = 0;
+        if (idx2 == std::string_view::npos)
+            idx2 = 0;
+        return OString(rFilename.substr(std::max(idx1, idx2)+1));
+    };
+
+    bool lcl_ReadPoChecked(
+        PoEntry& o_rPoEntry, PoIfstream& rPoFile,
+        const OString& rFileName)
+    {
+        try
+        {
+            rPoFile.readEntry( o_rPoEntry );
+        }
+        catch (const PoIfstream::Exception&)
+        {
+            SAL_WARN("l10ntools", rFileName << " contains invalid entry");
+            return false;
+        }
+        return true;
+    }
+}
+
+
+
+
+ResData::ResData( const OString &rGId )
+    :
+    sGId( rGId )
+{
+    sGId = sGId.replaceAll("\r", OString());
+}
+
+ResData::ResData( const OString &rGId, const OString &rFilename)
+    :
+    sGId( rGId ),
+    sFilename( rFilename )
+{
+    sGId = sGId.replaceAll("\r", OString());
+}
+
+
+
+
+bool MergeEntrys::GetText( OString &rReturn,
+    const OString &nLangIndex, bool bDel )
+{
+    bool bReturn = true;
+    rReturn = sText[ nLangIndex ];
+    if ( bDel )
+        sText[ nLangIndex ] = "";
+    bReturn = bTextFirst[ nLangIndex ];
+    bTextFirst[ nLangIndex ] = false;
+    return bReturn;
+}
+
+namespace
+{
+    OString GetDoubleBars()
+    {
+        //DOUBLE VERTICAL LINE instead of || because the translations make their
+        //way into action_names under gtk3 where || is illegal
+        return u8"\u2016";
+    }
+}
+
+OString MergeEntrys::GetQTZText(const ResData& rResData, std::string_view rOrigText)
+{
+    const OString sFilename = rResData.sFilename.copy(rResData.sFilename.lastIndexOf('/')+1);
+    const OString sKey =
+        PoEntry::genKeyId(sFilename + rResData.sGId + rResData.sId + rResData.sResTyp + rOrigText);
+    return sKey + GetDoubleBars() + rOrigText;
+}
+
+
+
+MergeDataFile::MergeDataFile(
+    const OString &rFileName, std::string_view rFile,
+    bool bCaseSensitive, bool bWithQtz )
+{
+    auto const env = getenv("ENABLE_RELEASE_BUILD");
+    OString sEnableReleaseBuild(env == nullptr ? "" : env);
+
+    std::ifstream aInputStream( rFileName.getStr() );
+    if ( !aInputStream.is_open() )
+    {
+        SAL_WARN("l10ntools", "Can't open po path container file for " << rFileName);
+        return;
+    }
+    std::string sPoFile;
+    aInputStream >> sPoFile;
+    bool bFirstLang = true;
+    while( !aInputStream.eof() )
+    {
+        bool bSkipCurrentPOFile = false;
+        const OString sFileName( lcl_NormalizeFilename(rFile) );
+        const bool bReadAll = sFileName.isEmpty();
+        // coverity[tainted_data] - this is a build time tool
+        const OString sPoFileName(sPoFile.data(), static_cast<sal_Int32>(sPoFile.length()));
+        PoIfstream aPoInput;
+        aPoInput.open( sPoFileName );
+        if ( !aPoInput.isOpen() )
+        {
+            SAL_WARN("l10ntools", "Can't open file: " << sPoFileName);
+            return;
+        }
+
+        OString sLang;
+        //Get language id from path
+        {
+            const OString sTransSource("translations/source/");
+            const sal_Int32 nStart =
+                sPoFileName.indexOf(sTransSource)+sTransSource.getLength();
+            const sal_Int32 nCount =
+                sPoFileName.indexOf('/',nStart) - nStart;
+            sLang = sPoFileName.copy(nStart,nCount);
+        }
+        aLanguageSet.insert( sLang );
+        PoEntry aNextPo;
+        do
+        {
+            if( !lcl_ReadPoChecked(aNextPo, aPoInput, sPoFileName) )
+            {
+                bSkipCurrentPOFile = true;
+                break;
+            }
+        } while( !aPoInput.eof() && aNextPo.getSourceFile() != sFileName && !bReadAll );
+        while( !aPoInput.eof() && (aNextPo.getSourceFile() == sFileName || bReadAll ) && !bSkipCurrentPOFile )
+        {
+            PoEntry aActPo( aNextPo );
+
+            bool bInSameComp = false;
+            OString sText;
+            OString sQHText;
+            OString sTitle;
+            OString sExText;
+            OString sExQHText;
+            OString sExTitle;
+            do
+            {
+                if( bInSameComp )
+                    aActPo = aNextPo;
+                OString sTemp = aActPo.getMsgStr();
+                if( aActPo.isFuzzy() || sTemp.isEmpty() )
+                    sTemp = aActPo.getMsgId();
+                switch( aActPo.getType() )
+                {
+                    case PoEntry::TTEXT:
+                        sText = sTemp;
+                        sExText = aActPo.getMsgId();
+                        break;
+                    case PoEntry::TQUICKHELPTEXT:
+                        sQHText = sTemp;
+                        sExQHText = aActPo.getMsgId();
+                        break;
+                    case PoEntry::TTITLE:
+                        sTitle = sTemp;
+                        sExTitle = aActPo.getMsgId();
+                        break;
+                }
+                if( !lcl_ReadPoChecked(aNextPo, aPoInput, sPoFileName) )
+                {
+                    bSkipCurrentPOFile = true;
+                    break;
+                }
+                if (aPoInput.eof())
+                    break;
+                bInSameComp = PoEntry::IsInSameComp(aActPo, aNextPo);
+            } while( bInSameComp );
+
+            InsertEntry(
+                aActPo.getResourceType(), aActPo.getGroupId(),
+                aActPo.getLocalId(), sLang, sText,
+                sQHText, sTitle, aActPo.getSourceFile(),
+                bFirstLang, bCaseSensitive );
+
+            if( bFirstLang && bWithQtz &&
+                sEnableReleaseBuild != "TRUE" )
+            {
+                aLanguageSet.insert("qtz");
+                InsertEntry(
+                    aActPo.getResourceType(), aActPo.getGroupId(),
+                    aActPo.getLocalId(), "qtz",
+                    sExText, sExQHText,
+                    sExTitle, aActPo.getSourceFile(),
+                    false, bCaseSensitive );
+            }
+        }
+        aPoInput.close();
+        aInputStream >> sPoFile;
+        bFirstLang = false;
+    }
+    aInputStream.close();
+}
+
+MergeDataFile::~MergeDataFile()
+{
+}
+
+std::vector<OString> MergeDataFile::GetLanguages() const
+{
+    return std::vector<OString>(aLanguageSet.begin(),aLanguageSet.end());
+}
+
+MergeEntrys *MergeDataFile::GetMergeData( ResData *pResData , bool bCaseSensitive )
+{
+    OString sOldG = pResData->sGId;
+    OString sOldL = pResData->sId;
+    OString sGID = pResData->sGId;
+    OString sLID;
+    if (sGID.isEmpty())
+        sGID = pResData->sId;
+    else
+        sLID = pResData->sId;
+    pResData->sGId = sGID;
+    pResData->sId = sLID;
+
+    OString sKey = CreateKey( pResData->sResTyp , pResData->sGId , pResData->sId , pResData->sFilename , bCaseSensitive );
+
+    auto mit = aMap.find( sKey );
+    if(mit != aMap.end())
+    {
+        pResData->sGId = sOldG;
+        pResData->sId = sOldL;
+        return mit->second.get();
+    }
+    pResData->sGId = sOldG;
+    pResData->sId = sOldL;
+    return nullptr;
+}
+
+MergeEntrys *MergeDataFile::GetMergeEntrys( ResData *pResData )
+{
+    // search for requested MergeEntrys
+    return GetMergeData( pResData );
+}
+
+MergeEntrys *MergeDataFile::GetMergeEntrysCaseSensitive( ResData *pResData )
+{
+    // search for requested MergeEntrys
+    return GetMergeData( pResData , true );
+}
+
+void MergeDataFile::InsertEntry(
+    std::string_view rTYP, std::string_view rGID,
+    std::string_view rLID, const OString &nLANG,
+    const OString &rTEXT, const OString &rQHTEXT,
+    const OString &rTITLE, std::string_view rInFilename,
+    bool bFirstLang, bool bCaseSensitive )
+{
+    MergeEntrys *pMergeEntrys = nullptr;
+
+    // search for MergeData
+    OString sKey = CreateKey(rTYP , rGID , rLID , rInFilename , bCaseSensitive);
+
+    if( !bFirstLang )
+    {
+        auto mit = aMap.find( sKey );
+        if(mit != aMap.end())
+            pMergeEntrys = mit->second.get();
+
+    }
+
+    if( !pMergeEntrys )
+    {
+        pMergeEntrys = new MergeEntrys;
+        if (!aMap.emplace( sKey, std::unique_ptr<MergeEntrys>(pMergeEntrys) ).second)
+        {
+            std::cerr << "Duplicate entry " << sKey << "\n";
+            std::exit(EXIT_FAILURE);
+        }
+    }
+
+
+    // insert the cur string
+    if( nLANG =="qtz" )
+    {
+        const OString sTemp = OString::Concat(rInFilename) + rGID + rLID + rTYP;
+        pMergeEntrys->InsertEntry(
+            nLANG,
+            rTEXT.isEmpty()? rTEXT : PoEntry::genKeyId(sTemp + rTEXT) + GetDoubleBars() + rTEXT,
+            rQHTEXT.isEmpty()? rQHTEXT : PoEntry::genKeyId(sTemp + rQHTEXT) + GetDoubleBars() + rQHTEXT,
+            rTITLE.isEmpty()? rTITLE : PoEntry::genKeyId(sTemp + rTITLE) + GetDoubleBars() + rTITLE );
+    }
+    else
+    {
+        pMergeEntrys->InsertEntry( nLANG , rTEXT, rQHTEXT, rTITLE );
+    }
+}
+
+OString MergeDataFile::CreateKey(std::string_view rTYP, std::string_view rGID,
+    std::string_view rLID, std::string_view rFilename, bool bCaseSensitive)
+{
+    static const char sStroke[] = "-";
+    OString sKey = OString::Concat(rTYP) + sStroke + rGID + sStroke + rLID + sStroke +
+        lcl_NormalizeFilename(rFilename);
+    if(bCaseSensitive)
+        return sKey;         // officecfg case sensitive identifier
+    return sKey.toAsciiUpperCase();
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/l10ntools/source/po.cxx b/l10ntools/source/po.cxx
new file mode 100644
index 000000000..62d09e1e7
--- /dev/null
+++ b/l10ntools/source/po.cxx
@@ -0,0 +1,644 @@
+/* -*- 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/.
+ */
+
+#include <rtl/ustring.hxx>
+#include <rtl/strbuf.hxx>
+#include <rtl/crc.h>
+#include <sal/log.hxx>
+
+#include <cstring>
+#include <ctime>
+#include <cassert>
+
+#include <vector>
+#include <string>
+#include <string_view>
+
+#include <po.hxx>
+#include <helper.hxx>
+
+/** Container of po entry
+
+    Provide all file operations related to LibreOffice specific
+    po entry and store it's attributes.
+*/
+class GenPoEntry
+{
+private:
+    OStringBuffer m_sExtractCom;
+    std::vector<OString>    m_sReferences;
+    OString    m_sMsgCtxt;
+    OString    m_sMsgId;
+    OString    m_sMsgIdPlural;
+    OString    m_sMsgStr;
+    std::vector<OString>    m_sMsgStrPlural;
+    bool       m_bFuzzy;
+    bool       m_bCFormat;
+    bool       m_bNull;
+
+public:
+    GenPoEntry();
+
+    const std::vector<OString>& getReference() const    { return m_sReferences; }
+    const OString& getMsgCtxt() const      { return m_sMsgCtxt; }
+    const OString& getMsgId() const        { return m_sMsgId; }
+    const OString& getMsgStr() const       { return m_sMsgStr; }
+    bool        isFuzzy() const         { return m_bFuzzy; }
+    bool        isNull() const          { return m_bNull; }
+
+    void        setExtractCom(std::string_view rExtractCom)
+                        {
+                            m_sExtractCom = rExtractCom;
+                        }
+    void        setReference(const OString& rReference)
+                        {
+                            m_sReferences.push_back(rReference);
+                        }
+    void        setMsgCtxt(const OString& rMsgCtxt)
+                        {
+                            m_sMsgCtxt = rMsgCtxt;
+                        }
+    void        setMsgId(const OString& rMsgId)
+                        {
+                            m_sMsgId = rMsgId;
+                        }
+    void        setMsgStr(const OString& rMsgStr)
+                        {
+                            m_sMsgStr = rMsgStr;
+                        }
+
+    void        writeToFile(std::ofstream& rOFStream) const;
+    void        readFromFile(std::ifstream& rIFStream);
+};
+
+namespace
+{
+    // Convert a normal string to msg/po output string
+    OString lcl_GenMsgString(std::string_view rString)
+    {
+        if ( rString.empty() )
+            return "\"\"";
+
+        OString sResult =
+            "\"" +
+            helper::escapeAll(rString,"\n""\t""\r""\\""\"","\\n""\\t""\\r""\\\\""\\\"") +
+            "\"";
+        sal_Int32 nIndex = 0;
+        while((nIndex=sResult.indexOf("\\n",nIndex))!=-1)
+        {
+            if( !sResult.match("\\\\n", nIndex-1) &&
+                nIndex!=sResult.getLength()-3)
+            {
+               sResult = sResult.replaceAt(nIndex,2,"\\n\"\n\"");
+            }
+            ++nIndex;
+        }
+
+        if ( sResult.indexOf('\n') != -1 )
+            return "\"\"\n" +  sResult;
+
+        return sResult;
+    }
+
+    // Convert msg string to normal form
+    OString lcl_GenNormString(std::string_view rString)
+    {
+        return
+            helper::unEscapeAll(
+                rString.substr(1,rString.size()-2),
+                "\\n""\\t""\\r""\\\\""\\\"",
+                "\n""\t""\r""\\""\"");
+    }
+}
+
+GenPoEntry::GenPoEntry()
+    : m_bFuzzy( false )
+    , m_bCFormat( false )
+    , m_bNull( false )
+{
+}
+
+void GenPoEntry::writeToFile(std::ofstream& rOFStream) const
+{
+    if ( rOFStream.tellp() != std::ofstream::pos_type( 0 ))
+        rOFStream << std::endl;
+    if ( !m_sExtractCom.isEmpty() )
+        rOFStream
+            << "#. "
+            << m_sExtractCom.toString().replaceAll("\n","\n#. ") << std::endl;
+    for(const auto& rReference : m_sReferences)
+        rOFStream << "#: " << rReference << std::endl;
+    if ( m_bFuzzy )
+        rOFStream << "#, fuzzy" << std::endl;
+    if ( m_bCFormat )
+        rOFStream << "#, c-format" << std::endl;
+    if ( !m_sMsgCtxt.isEmpty() )
+        rOFStream << "msgctxt "
+                  << lcl_GenMsgString(m_sMsgCtxt)
+                  << std::endl;
+    rOFStream << "msgid "
+              << lcl_GenMsgString(m_sMsgId) << std::endl;
+    if ( !m_sMsgIdPlural.isEmpty() )
+        rOFStream << "msgid_plural "
+                  << lcl_GenMsgString(m_sMsgIdPlural)
+                  << std::endl;
+    if ( !m_sMsgStrPlural.empty() )
+        for(auto & line : m_sMsgStrPlural)
+            rOFStream << line.copy(0,10) << lcl_GenMsgString(line.subView(10)) << std::endl;
+    else
+        rOFStream << "msgstr "
+                  << lcl_GenMsgString(m_sMsgStr) << std::endl;
+}
+
+void GenPoEntry::readFromFile(std::ifstream& rIFStream)
+{
+    *this = GenPoEntry();
+    OString* pLastMsg = nullptr;
+    std::string sTemp;
+    getline(rIFStream,sTemp);
+    if( rIFStream.eof() || sTemp.empty() )
+    {
+        m_bNull = true;
+        return;
+    }
+    while(!rIFStream.eof())
+    {
+        OString sLine(sTemp.data(),sTemp.length());
+        if (sLine.startsWith("#. "))
+        {
+            if( !m_sExtractCom.isEmpty() )
+            {
+                m_sExtractCom.append("\n");
+            }
+            m_sExtractCom.append(sLine.subView(3));
+        }
+        else if (sLine.startsWith("#: "))
+        {
+            m_sReferences.push_back(sLine.copy(3));
+        }
+        else if (sLine.startsWith("#, fuzzy"))
+        {
+            m_bFuzzy = true;
+        }
+        else if (sLine.startsWith("#, c-format"))
+        {
+            m_bCFormat = true;
+        }
+        else if (sLine.startsWith("msgctxt "))
+        {
+            m_sMsgCtxt = lcl_GenNormString(sLine.subView(8));
+            pLastMsg = &m_sMsgCtxt;
+        }
+        else if (sLine.startsWith("msgid "))
+        {
+            m_sMsgId = lcl_GenNormString(sLine.subView(6));
+            pLastMsg = &m_sMsgId;
+        }
+        else if (sLine.startsWith("msgid_plural "))
+        {
+            m_sMsgIdPlural = lcl_GenNormString(sLine.subView(13));
+            pLastMsg = &m_sMsgIdPlural;
+        }
+        else if (sLine.startsWith("msgstr "))
+        {
+            m_sMsgStr = lcl_GenNormString(sLine.subView(7));
+            pLastMsg = &m_sMsgStr;
+        }
+        else if (sLine.startsWith("msgstr["))
+        {
+            // assume there are no more than 10 plural forms...
+            // and that plural strings are never split to multi-line in po
+            m_sMsgStrPlural.push_back(sLine.subView(0,10) + lcl_GenNormString(sLine.subView(10)));
+        }
+        else if (sLine.startsWith("\"") && pLastMsg)
+        {
+            OString sReference;
+            if (!m_sReferences.empty())
+            {
+                sReference = m_sReferences.front();
+            }
+            if (pLastMsg != &m_sMsgCtxt || sLine != OStringConcatenation("\"" + sReference + "\\n\""))
+            {
+                *pLastMsg += lcl_GenNormString(sLine);
+            }
+        }
+        else
+            break;
+        getline(rIFStream,sTemp);
+    }
+ }
+
+PoEntry::PoEntry()
+    : m_bIsInitialized( false )
+{
+}
+
+PoEntry::PoEntry(
+    std::string_view rSourceFile, std::string_view rResType, std::string_view rGroupId,
+    std::string_view rLocalId, std::string_view rHelpText,
+    const OString& rText, const TYPE eType )
+    : m_bIsInitialized( false )
+{
+    if( rSourceFile.empty() )
+        throw NOSOURCFILE;
+    else if ( rResType.empty() )
+        throw NORESTYPE;
+    else if ( rGroupId.empty() )
+        throw NOGROUPID;
+    else if ( rText.isEmpty() )
+        throw NOSTRING;
+    else if ( rHelpText.size() == 5 )
+        throw WRONGHELPTEXT;
+
+    m_pGenPo.reset( new GenPoEntry() );
+    size_t idx = rSourceFile.rfind('/');
+    if (idx == std::string_view::npos)
+        idx = 0;
+    OString sReference(rSourceFile.substr(idx+1));
+    m_pGenPo->setReference(sReference);
+
+    OString sMsgCtxt =
+        sReference + "\n" +
+        rGroupId + "\n" +
+        (rLocalId.empty() ? OString() : OString::Concat(rLocalId) + "\n") +
+        rResType;
+    switch(eType){
+    case TTEXT:
+        sMsgCtxt += ".text"; break;
+    case TQUICKHELPTEXT:
+        sMsgCtxt += ".quickhelptext"; break;
+    case TTITLE:
+        sMsgCtxt += ".title"; break;
+    // Default case is unneeded because the type of eType has only three element
+    }
+    m_pGenPo->setMsgCtxt(sMsgCtxt);
+    m_pGenPo->setMsgId(rText);
+    m_pGenPo->setExtractCom(OStringConcatenation(
+        ( !rHelpText.empty() ?  OString::Concat(rHelpText) + "\n" : OString()) +
+        genKeyId( m_pGenPo->getReference().front() + rGroupId + rLocalId + rResType + rText ) ));
+    m_bIsInitialized = true;
+}
+
+PoEntry::~PoEntry()
+{
+}
+
+PoEntry::PoEntry( const PoEntry& rPo )
+    : m_pGenPo( rPo.m_pGenPo ? new GenPoEntry( *(rPo.m_pGenPo) ) : nullptr )
+    , m_bIsInitialized( rPo.m_bIsInitialized )
+{
+}
+
+PoEntry& PoEntry::operator=(const PoEntry& rPo)
+{
+    if( this == &rPo )
+    {
+        return *this;
+    }
+    if( rPo.m_pGenPo )
+    {
+        if( m_pGenPo )
+        {
+            *m_pGenPo = *(rPo.m_pGenPo);
+        }
+        else
+        {
+            m_pGenPo.reset( new GenPoEntry( *(rPo.m_pGenPo) ) );
+        }
+    }
+    else
+    {
+        m_pGenPo.reset();
+    }
+    m_bIsInitialized = rPo.m_bIsInitialized;
+    return *this;
+}
+
+PoEntry& PoEntry::operator=(PoEntry&& rPo) noexcept
+{
+    m_pGenPo = std::move(rPo.m_pGenPo);
+    m_bIsInitialized = std::move(rPo.m_bIsInitialized);
+    return *this;
+}
+
+OString const & PoEntry::getSourceFile() const
+{
+    assert( m_bIsInitialized );
+    return m_pGenPo->getReference().front();
+}
+
+OString PoEntry::getGroupId() const
+{
+    assert( m_bIsInitialized );
+    return m_pGenPo->getMsgCtxt().getToken(0,'\n');
+}
+
+OString PoEntry::getLocalId() const
+{
+    assert( m_bIsInitialized );
+    const OString sMsgCtxt = m_pGenPo->getMsgCtxt();
+    if (sMsgCtxt.indexOf('\n')==sMsgCtxt.lastIndexOf('\n'))
+        return OString();
+    else
+        return sMsgCtxt.getToken(1,'\n');
+}
+
+OString PoEntry::getResourceType() const
+{
+    assert( m_bIsInitialized );
+    const OString sMsgCtxt = m_pGenPo->getMsgCtxt();
+    if (sMsgCtxt.indexOf('\n')==sMsgCtxt.lastIndexOf('\n'))
+        return sMsgCtxt.getToken(1,'\n').getToken(0,'.');
+    else
+        return sMsgCtxt.getToken(2,'\n').getToken(0,'.');
+}
+
+PoEntry::TYPE PoEntry::getType() const
+{
+    assert( m_bIsInitialized );
+    const OString sMsgCtxt = m_pGenPo->getMsgCtxt();
+    const OString sType = sMsgCtxt.copy( sMsgCtxt.lastIndexOf('.') + 1 );
+    assert(
+        (sType == "text" || sType == "quickhelptext" || sType == "title") );
+    if ( sType == "text" )
+        return TTEXT;
+    else if ( sType == "quickhelptext" )
+        return TQUICKHELPTEXT;
+    else
+        return TTITLE;
+}
+
+bool PoEntry::isFuzzy() const
+{
+    assert( m_bIsInitialized );
+    return m_pGenPo->isFuzzy();
+}
+
+// Get message context
+const OString& PoEntry::getMsgCtxt() const
+{
+    assert( m_bIsInitialized );
+    return m_pGenPo->getMsgCtxt();
+
+}
+
+// Get translation string in merge format
+OString const & PoEntry::getMsgId() const
+{
+    assert( m_bIsInitialized );
+    return m_pGenPo->getMsgId();
+}
+
+// Get translated string in merge format
+const OString& PoEntry::getMsgStr() const
+{
+    assert( m_bIsInitialized );
+    return m_pGenPo->getMsgStr();
+
+}
+
+bool PoEntry::IsInSameComp(const PoEntry& rPo1,const PoEntry& rPo2)
+{
+    assert( rPo1.m_bIsInitialized && rPo2.m_bIsInitialized );
+    return ( rPo1.getSourceFile() == rPo2.getSourceFile() &&
+             rPo1.getGroupId() == rPo2.getGroupId() &&
+             rPo1.getLocalId() == rPo2.getLocalId() &&
+             rPo1.getResourceType() == rPo2.getResourceType() );
+}
+
+OString PoEntry::genKeyId(const OString& rGenerator)
+{
+    sal_uInt32 nCRC = rtl_crc32(0, rGenerator.getStr(), rGenerator.getLength());
+    // Use simple ASCII characters, exclude I, l, 1 and O, 0 to avoid confusing IDs
+    static const char sSymbols[] =
+        "ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz23456789";
+    char sKeyId[6];
+    for( short nKeyInd = 0; nKeyInd < 5; ++nKeyInd )
+    {
+        sKeyId[nKeyInd] = sSymbols[(nCRC & 63) % strlen(sSymbols)];
+        nCRC >>= 6;
+    }
+    sKeyId[5] = '\0';
+    return OString(sKeyId);
+}
+
+namespace
+{
+    // Get actual time in "YEAR-MO-DA HO:MI+ZONE" form
+    OString lcl_GetTime()
+    {
+        time_t aNow = time(nullptr);
+        struct tm* pNow = localtime(&aNow);
+        char pBuff[50];
+        strftime( pBuff, sizeof pBuff, "%Y-%m-%d %H:%M%z", pNow );
+        return OString(pBuff);
+    }
+}
+
+// when updating existing files (pocheck), reuse provided po-header
+PoHeader::PoHeader( std::string_view rExtSrc, const OString& rPoHeaderMsgStr )
+    : m_pGenPo( new GenPoEntry() )
+    , m_bIsInitialized( false )
+{
+    m_pGenPo->setExtractCom(OStringConcatenation(OString::Concat("extracted from ") + rExtSrc));
+    m_pGenPo->setMsgStr(rPoHeaderMsgStr);
+    m_bIsInitialized = true;
+}
+
+PoHeader::PoHeader( std::string_view rExtSrc )
+    : m_pGenPo( new GenPoEntry() )
+    , m_bIsInitialized( false )
+{
+    m_pGenPo->setExtractCom(OStringConcatenation(OString::Concat("extracted from ") + rExtSrc));
+    m_pGenPo->setMsgStr(
+        "Project-Id-Version: PACKAGE VERSION\n"
+        "Report-Msgid-Bugs-To: https://bugs.libreoffice.org/enter_bug.cgi?"
+        "product=LibreOffice&bug_status=UNCONFIRMED&component=UI\n"
+        "POT-Creation-Date: " + lcl_GetTime() +
+        "\nPO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+        "Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+        "Language-Team: LANGUAGE <LL@li.org>\n"
+        "MIME-Version: 1.0\n"
+        "Content-Type: text/plain; charset=UTF-8\n"
+        "Content-Transfer-Encoding: 8bit\n"
+        "X-Accelerator-Marker: ~\n"
+        "X-Generator: LibreOffice\n");
+    m_bIsInitialized = true;
+}
+
+PoHeader::~PoHeader()
+{
+}
+
+PoOfstream::PoOfstream()
+    : m_bIsAfterHeader( false )
+{
+}
+
+PoOfstream::PoOfstream(const OString& rFileName, OpenMode aMode )
+    : m_bIsAfterHeader( false )
+{
+    open( rFileName, aMode );
+}
+
+PoOfstream::~PoOfstream()
+{
+    if( isOpen() )
+    {
+       close();
+    }
+}
+
+void PoOfstream::open(const OString& rFileName, OpenMode aMode )
+{
+    assert( !isOpen() );
+    if( aMode == TRUNC )
+    {
+        m_aOutPut.open( rFileName.getStr(),
+            std::ios_base::out | std::ios_base::trunc );
+        m_bIsAfterHeader = false;
+    }
+    else if( aMode == APP )
+    {
+        m_aOutPut.open( rFileName.getStr(),
+            std::ios_base::out | std::ios_base::app );
+        m_bIsAfterHeader = m_aOutPut.tellp() != std::ofstream::pos_type( 0 );
+    }
+}
+
+void PoOfstream::close()
+{
+    assert( isOpen() );
+    m_aOutPut.close();
+}
+
+void PoOfstream::writeHeader(const PoHeader& rPoHeader)
+{
+    assert( isOpen() && !m_bIsAfterHeader && rPoHeader.m_bIsInitialized );
+    rPoHeader.m_pGenPo->writeToFile( m_aOutPut );
+    m_bIsAfterHeader = true;
+}
+
+void PoOfstream::writeEntry( const PoEntry& rPoEntry )
+{
+    assert( isOpen() && m_bIsAfterHeader && rPoEntry.m_bIsInitialized );
+    rPoEntry.m_pGenPo->writeToFile( m_aOutPut );
+}
+
+namespace
+{
+
+// Check the validity of read entry
+bool lcl_CheckInputEntry(const GenPoEntry& rEntry)
+{
+    // stock button labels don't have a reference/sourcefile - they are not extracted from ui files
+    // (explicitly skipped by solenv/bin/uiex) but instead inserted by l10ntools/source/localize.cxx
+    // into all module templates (see d5d905b480c2a9b1db982f2867e87b5c230d1ab9)
+    return !rEntry.getMsgCtxt().isEmpty() &&
+           (rEntry.getMsgCtxt() == "stock" || !rEntry.getReference().empty()) &&
+           !rEntry.getMsgId().isEmpty();
+}
+
+}
+
+PoIfstream::PoIfstream()
+    : m_bEof( false )
+{
+}
+
+PoIfstream::PoIfstream(const OString& rFileName)
+    : m_bEof( false )
+{
+    open( rFileName );
+}
+
+PoIfstream::~PoIfstream()
+{
+    if( isOpen() )
+    {
+       close();
+    }
+}
+
+void PoIfstream::open( const OString& rFileName, OString& rPoHeader )
+{
+    assert( !isOpen() );
+    m_aInPut.open( rFileName.getStr(), std::ios_base::in );
+
+    // capture header, updating timestamp and generator
+    std::string sTemp;
+    std::getline(m_aInPut,sTemp);
+    while( !sTemp.empty() && !m_aInPut.eof() )
+    {
+        std::getline(m_aInPut,sTemp);
+        OString sLine(sTemp.data(),sTemp.length());
+        if (sLine.startsWith("\"PO-Revision-Date"))
+            rPoHeader += "PO-Revision-Date: " + lcl_GetTime() + "\n";
+        else if (sLine.startsWith("\"X-Generator"))
+            rPoHeader += "X-Generator: LibreOffice\n";
+        else if (sLine.startsWith("\""))
+            rPoHeader += lcl_GenNormString(sLine);
+    }
+    m_bEof = false;
+}
+
+void PoIfstream::open( const OString& rFileName )
+{
+    assert( !isOpen() );
+    m_aInPut.open( rFileName.getStr(), std::ios_base::in );
+
+    // Skip header
+    std::string sTemp;
+    std::getline(m_aInPut,sTemp);
+    while( !sTemp.empty() && !m_aInPut.eof() )
+    {
+        std::getline(m_aInPut,sTemp);
+    }
+    m_bEof = false;
+}
+
+void PoIfstream::close()
+{
+    assert( isOpen() );
+    m_aInPut.close();
+}
+
+void PoIfstream::readEntry( PoEntry& rPoEntry )
+{
+    assert( isOpen() && !eof() );
+    GenPoEntry aGenPo;
+    aGenPo.readFromFile( m_aInPut );
+    if( aGenPo.isNull() )
+    {
+        m_bEof = true;
+        rPoEntry = PoEntry();
+    }
+    else
+    {
+        if( lcl_CheckInputEntry(aGenPo) )
+        {
+            if( rPoEntry.m_pGenPo )
+            {
+                *(rPoEntry.m_pGenPo) = aGenPo;
+            }
+            else
+            {
+                rPoEntry.m_pGenPo.reset( new GenPoEntry( aGenPo ) );
+            }
+            rPoEntry.m_bIsInitialized = true;
+        }
+        else
+        {
+            SAL_WARN("l10ntools", "Parse problem with entry: " << aGenPo.getMsgStr());
+            throw PoIfstream::Exception();
+        }
+    }
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/l10ntools/source/pocheck.cxx b/l10ntools/source/pocheck.cxx
new file mode 100644
index 000000000..0dcb2d0dc
--- /dev/null
+++ b/l10ntools/source/pocheck.cxx
@@ -0,0 +1,430 @@
+/* -*- 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/.
+ */
+
+#include <sal/config.h>
+
+#include <cassert>
+#include <iostream>
+#include <map>
+#include <vector>
+#include <rtl/string.hxx>
+#include <rtl/ustring.hxx>
+#include <osl/file.hxx>
+#include <po.hxx>
+
+// Translated style names must be unique
+static void checkStyleNames(const OString& aLanguage)
+{
+    std::map<OString,sal_uInt16> aLocalizedStyleNames;
+    std::map<OString,sal_uInt16> aLocalizedNumStyleNames;
+    std::vector<PoEntry> repeatedEntries;
+
+    OString aPoPath = OString::Concat(getenv("SRC_ROOT")) +
+                      "/translations/source/" +
+                      aLanguage + "/sw/messages.po";
+    PoIfstream aPoInput;
+    aPoInput.open(aPoPath);
+    if( !aPoInput.isOpen() )
+    {
+        std::cerr << "Warning: Cannot open " << aPoPath << std::endl;
+        return;
+    }
+
+    for(;;)
+    {
+        PoEntry aPoEntry;
+        aPoInput.readEntry(aPoEntry);
+        bool bRepeated = false;
+        if( aPoInput.eof() )
+        {
+            break;
+        }
+
+        if( !aPoEntry.isFuzzy() && aPoEntry.getMsgCtxt().startsWith("STR_POOLCOLL") )
+        {
+            const OString& aMsgStr = aPoEntry.getMsgStr();
+            if( aMsgStr.isEmpty() )
+                continue;
+            if( aLocalizedStyleNames.find(aMsgStr) == aLocalizedStyleNames.end() )
+                aLocalizedStyleNames[aMsgStr] = 1;
+            else {
+                aLocalizedStyleNames[aMsgStr]++;
+                bRepeated = true;
+            }
+        }
+        if( !aPoEntry.isFuzzy() && aPoEntry.getMsgCtxt().startsWith("STR_POOLNUMRULE") )
+        {
+            const OString& aMsgStr = aPoEntry.getMsgStr();
+            if( aMsgStr.isEmpty() )
+                continue;
+            if( aLocalizedNumStyleNames.find(aMsgStr) == aLocalizedNumStyleNames.end() )
+                aLocalizedNumStyleNames[aMsgStr] = 1;
+            else {
+                aLocalizedNumStyleNames[aMsgStr]++;
+                bRepeated = true;
+            }
+        }
+        if (bRepeated)
+            repeatedEntries.push_back(aPoEntry);
+    }
+    aPoInput.close();
+
+    for (auto const& localizedStyleName : aLocalizedStyleNames)
+    {
+        if( localizedStyleName.second > 1 )
+        {
+            std::cout << "ERROR: Style name translations must be unique in:\n" <<
+                aPoPath << "\nLanguage: " << aLanguage << "\nDuplicated translation is: " << localizedStyleName.first <<
+                "\nSee STR_POOLCOLL_*\n\n";
+        }
+    }
+    for (auto const& localizedNumStyleName : aLocalizedNumStyleNames)
+    {
+        if( localizedNumStyleName.second > 1 )
+        {
+            std::cout << "ERROR: Style name translations must be unique in:\n" <<
+                aPoPath << "\nLanguage: " << aLanguage << "\nDuplicated translation is: " << localizedNumStyleName.first <<
+                "\nSee STR_POOLNUMRULE_*\n\n";
+        }
+    }
+    OString sPoHdrMsg;
+    aPoInput.open(aPoPath, sPoHdrMsg);
+    if( !aPoInput.isOpen() )
+    {
+        std::cerr << "Warning: Cannot open " << aPoPath << std::endl;
+        return;
+    }
+    PoOfstream aPoOutput;
+    aPoOutput.open(aPoPath+".new");
+    PoHeader aTmp("sw/inc", sPoHdrMsg);
+    aPoOutput.writeHeader(aTmp);
+    bool bAnyError = false;
+
+    for(;;)
+    {
+        PoEntry aPoEntry;
+        bool bError = false;
+        aPoInput.readEntry(aPoEntry);
+        if( aPoInput.eof() )
+            break;
+        for (auto const& repeatedEntry : repeatedEntries)
+        {
+            if (repeatedEntry.getMsgId() == aPoEntry.getMsgId() && repeatedEntry.getMsgCtxt() == aPoEntry.getMsgCtxt()) {
+                bError = true;
+                break;
+            }
+        }
+        if (bError) {
+            bAnyError = true;
+        } else {
+            aPoOutput.writeEntry(aPoEntry);
+        }
+    }
+    aPoInput.close();
+    aPoOutput.close();
+    OUString aPoPathURL;
+    osl::FileBase::getFileURLFromSystemPath(OStringToOUString(aPoPath, RTL_TEXTENCODING_UTF8), aPoPathURL);
+    if( bAnyError )
+        osl::File::move(aPoPathURL + ".new", aPoPathURL);
+    else
+        osl::File::remove(aPoPathURL + ".new");
+}
+
+// Translated spreadsheet function names must be unique
+static void checkFunctionNames(const OString& aLanguage)
+{
+    std::map<OString,sal_uInt16> aLocalizedFunctionNames;
+    std::map<OString,sal_uInt16> aLocalizedCoreFunctionNames;
+
+    std::vector<PoEntry> repeatedEntries;
+
+    OString aPoPaths[2];
+    OUString aPoPathURL;
+
+    aPoPaths[0] = OString::Concat(getenv("SRC_ROOT")) +
+                      "/translations/source/" +
+                      aLanguage +
+                      "/formula/messages.po";
+    PoIfstream aPoInput;
+    OString sPoHdrMsg;
+    aPoInput.open(aPoPaths[0], sPoHdrMsg);
+    if( !aPoInput.isOpen() )
+    {
+        std::cerr << "Warning: Cannot open " << aPoPaths[0] << std::endl;
+        return;
+    }
+
+    for(;;)
+    {
+        PoEntry aPoEntry;
+        aPoInput.readEntry(aPoEntry);
+        if( aPoInput.eof() )
+            break;
+        if( !aPoEntry.isFuzzy() && aPoEntry.getMsgCtxt() == "RID_STRLIST_FUNCTION_NAMES" )
+        {
+            const OString& aMsgStr = aPoEntry.getMsgStr();
+            if( aMsgStr.isEmpty() )
+                continue;
+            if( aLocalizedCoreFunctionNames.find(aMsgStr) == aLocalizedCoreFunctionNames.end() )
+                aLocalizedCoreFunctionNames[aMsgStr] = 1;
+            if( aLocalizedFunctionNames.find(aMsgStr) == aLocalizedFunctionNames.end() ) {
+                aLocalizedFunctionNames[aMsgStr] = 1;
+            } else {
+                aLocalizedFunctionNames[aMsgStr]++;
+                repeatedEntries.push_back(aPoEntry);
+            }
+        }
+    }
+    aPoInput.close();
+
+    aPoPaths[1] = OString::Concat(getenv("SRC_ROOT")) +
+        "/translations/source/" +
+        aLanguage +
+        "/scaddins/messages.po";
+    aPoInput.open(aPoPaths[1]);
+    if( !aPoInput.isOpen() )
+    {
+        std::cerr << "Warning: Cannot open " << aPoPaths[1] << std::endl;
+        return;
+    }
+
+    for(;;)
+    {
+        PoEntry aPoEntry;
+        aPoInput.readEntry(aPoEntry);
+        if( aPoInput.eof() )
+            break;
+        if( !aPoEntry.isFuzzy() && aPoEntry.getMsgCtxt().startsWith("ANALYSIS_FUNCNAME") )
+        {
+            OString aMsgStr = aPoEntry.getMsgStr();
+            if( aMsgStr.isEmpty() )
+                continue;
+            if( aLocalizedCoreFunctionNames.find(aMsgStr) != aLocalizedCoreFunctionNames.end() )
+                aMsgStr += "_ADD";
+            if( aLocalizedFunctionNames.find(aMsgStr) == aLocalizedFunctionNames.end() ) {
+                aLocalizedFunctionNames[aMsgStr] = 1;
+            } else {
+                aLocalizedFunctionNames[aMsgStr]++;
+                repeatedEntries.push_back(aPoEntry);
+            }
+        }
+    }
+    aPoInput.close();
+
+    for (auto const& localizedFunctionName : aLocalizedFunctionNames)
+    {
+        if( localizedFunctionName.second > 1 )
+        {
+            std::cout
+                << ("ERROR: Spreadsheet function name translations must be"
+                    " unique.\nLanguage: ")
+                << aLanguage << "\nDuplicated translation is: " << localizedFunctionName.first
+                << "\n\n";
+        }
+    }
+
+    for (int i=0;i<2;i++)
+    {
+        aPoInput.open(aPoPaths[i]);
+        if( !aPoInput.isOpen() )
+            std::cerr << "Warning: Cannot open " << aPoPaths[i] << std::endl;
+        PoOfstream aPoOutput;
+        aPoOutput.open(aPoPaths[i]+".new");
+
+        switch (i)
+        {
+        case 0:
+        {
+            PoHeader hd("formula/inc", sPoHdrMsg);
+            aPoOutput.writeHeader(hd);
+            break;
+        }
+        case 1:
+        {
+            PoHeader hd("scaddins/inc", sPoHdrMsg);
+            aPoOutput.writeHeader(hd);
+            break;
+        }
+        }
+        bool bAnyError = false;
+
+        for(;;)
+        {
+            PoEntry aPoEntry;
+            bool bError = false;
+            aPoInput.readEntry(aPoEntry);
+            if( aPoInput.eof() )
+                break;
+            for (auto const& repeatedEntry : repeatedEntries)
+            {
+                if (repeatedEntry.getMsgId() == aPoEntry.getMsgId() && repeatedEntry.getMsgCtxt() == aPoEntry.getMsgCtxt())
+                {
+                    bError = true;
+                    break;
+                }
+            }
+            if (bError)
+            {
+                bAnyError = true;
+            }
+            else
+            {
+                aPoOutput.writeEntry(aPoEntry);
+            }
+        }
+        aPoInput.close();
+        aPoOutput.close();
+        osl::FileBase::getFileURLFromSystemPath(OStringToOUString(aPoPaths[i], RTL_TEXTENCODING_UTF8), aPoPathURL);
+        if( bAnyError )
+            osl::File::move(aPoPathURL + ".new", aPoPathURL);
+        else
+            osl::File::remove(aPoPathURL + ".new");
+    }
+}
+
+// In instsetoo_native/inc_openoffice/windows/msi_languages.po
+// where an en-US string ends with '|', translation must end
+// with '|', too.
+static void checkVerticalBar(const OString& aLanguage)
+{
+    OString aPoPath = OString::Concat(getenv("SRC_ROOT")) +
+                      "/translations/source/" +
+                      aLanguage +
+                      "/instsetoo_native/inc_openoffice/windows/msi_languages.po";
+    PoIfstream aPoInput;
+    aPoInput.open(aPoPath);
+    if( !aPoInput.isOpen() )
+    {
+        std::cerr << "Warning: Cannot open " << aPoPath << std::endl;
+        return;
+    }
+    PoOfstream aPoOutput;
+    aPoOutput.open(aPoPath+".new");
+    PoHeader aTmp("instsetoo_native/inc_openoffice/windows/msi_languages");
+    aPoOutput.writeHeader(aTmp);
+    bool bError = false;
+
+    for(;;)
+    {
+        PoEntry aPoEntry;
+        aPoInput.readEntry(aPoEntry);
+        if( aPoInput.eof() )
+            break;
+        if( !aPoEntry.isFuzzy() && aPoEntry.getMsgId().endsWith("|") &&
+            !aPoEntry.getMsgStr().isEmpty() && !aPoEntry.getMsgStr().endsWith("|") )
+        {
+            std::cout
+                << ("ERROR: Missing '|' character at the end of translated"
+                    " string.\nIt causes runtime error in installer.\nFile: ")
+                << aPoPath << std::endl
+                << "Language: " << aLanguage << std::endl
+                << "English:   " << aPoEntry.getMsgId() << std::endl
+                << "Localized: " << aPoEntry.getMsgStr() << std::endl
+                << std::endl;
+            bError = true;
+        }
+        else
+            aPoOutput.writeEntry(aPoEntry);
+    }
+    aPoInput.close();
+    aPoOutput.close();
+    OUString aPoPathURL;
+    osl::FileBase::getFileURLFromSystemPath(OStringToOUString(aPoPath, RTL_TEXTENCODING_UTF8), aPoPathURL);
+    if( bError )
+        osl::File::move(aPoPathURL + ".new", aPoPathURL);
+    else
+        osl::File::remove(aPoPathURL + ".new");
+}
+
+// In starmath/source.po Math symbol names (from symbol.src)
+// must not contain spaces
+static void checkMathSymbolNames(const OString& aLanguage)
+{
+    OString aPoPath = OString::Concat(getenv("SRC_ROOT")) +
+                      "/translations/source/" +
+                      aLanguage +
+                      "/starmath/messages.po";
+    PoIfstream aPoInput;
+    aPoInput.open(aPoPath);
+    if( !aPoInput.isOpen() )
+    {
+        std::cerr << "Warning: Cannot open " << aPoPath << std::endl;
+        return;
+    }
+    PoOfstream aPoOutput;
+    aPoOutput.open(aPoPath+".new");
+    PoHeader aTmp("starmath/inc");
+    aPoOutput.writeHeader(aTmp);
+    bool bError = false;
+
+    for(;;)
+    {
+        PoEntry aPoEntry;
+        aPoInput.readEntry(aPoEntry);
+        if( aPoInput.eof() )
+            break;
+        if( !aPoEntry.isFuzzy() && aPoEntry.getGroupId() == "RID_UI_SYMBOL_NAMES" &&
+            !aPoEntry.getMsgStr().isEmpty() && (aPoEntry.getMsgStr().indexOf(" ") != -1) )
+        {
+            std::cout
+                << "ERROR: Math symbol names must not contain spaces.\nFile: "
+                << aPoPath << std::endl
+                << "Language: " << aLanguage << std::endl
+                << "English:   " << aPoEntry.getMsgId() << std::endl
+                << "Localized: " << aPoEntry.getMsgStr() << std::endl
+                << std::endl;
+            bError = true;
+        }
+        else
+            aPoOutput.writeEntry(aPoEntry);
+    }
+    aPoInput.close();
+    aPoOutput.close();
+    OUString aPoPathURL;
+    osl::FileBase::getFileURLFromSystemPath(OStringToOUString(aPoPath, RTL_TEXTENCODING_UTF8), aPoPathURL);
+    if( bError )
+        osl::File::move(aPoPathURL + ".new", aPoPathURL);
+    else
+        osl::File::remove(aPoPathURL + ".new");
+}
+
+int main()
+{
+    try
+    {
+        auto const env = getenv("ALL_LANGS");
+        assert(env != nullptr);
+        OString aLanguages(env);
+        if( aLanguages.isEmpty() )
+        {
+            std::cerr << "Usage: LD_LIBRARY_PATH=instdir/program make cmd cmd=workdir/LinkTarget/Executable/pocheck\n";
+            return 1;
+        }
+        for(sal_Int32 i = 1;;++i) // skip en-US
+        {
+             OString aLanguage = aLanguages.getToken(i,' ');
+             if( aLanguage.isEmpty() )
+                 break;
+             if( aLanguage == "qtz" )
+                 continue;
+             checkStyleNames(aLanguage);
+             checkFunctionNames(aLanguage);
+             checkVerticalBar(aLanguage);
+             checkMathSymbolNames(aLanguage);
+        }
+        return 0;
+    }
+    catch (std::exception& e)
+    {
+        std::cerr << "pocheck: exception " << e.what() << std::endl;
+        return 1;
+    }
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/l10ntools/source/propex.cxx b/l10ntools/source/propex.cxx
new file mode 100644
index 000000000..32d2e3d3c
--- /dev/null
+++ b/l10ntools/source/propex.cxx
@@ -0,0 +1,41 @@
+/* -*- 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/.
+ */
+
+#include <sal/main.h>
+
+#include <common.hxx>
+#include <propmerge.hxx>
+
+SAL_IMPLEMENT_MAIN_WITH_ARGS(argc, argv)
+{
+    common::HandledArgs aArgs;
+    if( !common::handleArguments(argc, argv, aArgs) )
+    {
+        common::writeUsage("propex","*.properties");
+        return 1;
+    }
+
+    PropParser aParser(
+        aArgs.m_sInputFile, aArgs.m_sLanguage, aArgs.m_bMergeMode );
+    if( !aParser.isInitialized() )
+    {
+        return 1;
+    }
+    if( aArgs.m_bMergeMode )
+    {
+        aParser.Merge( aArgs.m_sMergeSrc, aArgs.m_sOutputFile );
+    }
+    else
+    {
+        aParser.Extract( aArgs.m_sOutputFile );
+    }
+    return 0;
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/l10ntools/source/propmerge.cxx b/l10ntools/source/propmerge.cxx
new file mode 100644
index 000000000..7b74ab4d3
--- /dev/null
+++ b/l10ntools/source/propmerge.cxx
@@ -0,0 +1,231 @@
+/* -*- 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/.
+ */
+
+#include <rtl/ustring.hxx>
+#include <o3tl/string_view.hxx>
+
+#include <memory>
+#include <cstdlib>
+#include <cassert>
+#include <iostream>
+#include <iomanip>
+#include <string_view>
+
+#include <export.hxx>
+#include <common.hxx>
+#include <propmerge.hxx>
+
+namespace
+{
+    //Find ascii escaped unicode
+    sal_Int32 lcl_IndexOfUnicode(
+        std::string_view rSource, const sal_Int32 nFrom = 0 )
+    {
+        const OString sHexDigits = "0123456789abcdefABCDEF";
+        size_t nIndex = rSource.find( "\\u", nFrom );
+        if( nIndex == std::string_view::npos )
+        {
+            return -1;
+        }
+        bool bIsUnicode = true;
+        for( short nDist = 2; nDist <= 5; ++nDist )
+        {
+            if( sHexDigits.indexOf( rSource[nIndex + nDist] ) == -1 )
+            {
+                bIsUnicode = false;
+            }
+        }
+        return bIsUnicode ? nIndex : -1;
+    }
+
+    //Convert ascii escaped unicode to utf-8
+    OString lcl_ConvertToUTF8( const OString& rText )
+    {
+        OString sResult = rText;
+        sal_Int32 nIndex = lcl_IndexOfUnicode( sResult );
+        while( nIndex != -1 && nIndex < rText.getLength() )
+        {
+            const OString sHex = sResult.copy( nIndex + 2, 4 );
+            const sal_Unicode cDec =
+                static_cast<sal_Unicode>( strtol( sHex.getStr(), nullptr, 16 ) );
+            const OString sNewChar( &cDec, 1, RTL_TEXTENCODING_UTF8 );
+            sResult = sResult.replaceAll( "\\u" + sHex, sNewChar );
+            nIndex = lcl_IndexOfUnicode( sResult, nIndex );
+        }
+        return sResult;
+    }
+
+    //Escape unicode characters
+    void lcl_PrintJavaStyle( std::string_view rText, std::ofstream &rOfstream )
+    {
+        const OUString sTemp =
+            OStringToOUString( rText, RTL_TEXTENCODING_UTF8 );
+        for ( sal_Int32 nIndex = 0; nIndex < sTemp.getLength(); ++nIndex )
+        {
+            sal_Unicode cUniCode = sTemp[nIndex];
+            if( cUniCode < 128 )
+            {
+                rOfstream << static_cast<char>( cUniCode );
+            }
+            else
+            {
+                rOfstream
+                    << "\\u"
+                    << std::setfill('0') << std::setw(2) << std::uppercase
+                    << std::hex << (cUniCode >> 8)
+                    << std::setfill('0') << std::setw(2) << std::uppercase
+                    << std::hex << (cUniCode & 0xFF);
+            }
+        }
+    }
+}
+
+//Open source file and store its lines
+PropParser::PropParser(
+    const OString& rInputFile, const OString& rLang,
+    const bool bMergeMode )
+    : m_sSource( rInputFile )
+    , m_sLang( rLang )
+    , m_bIsInitialized( false )
+{
+    std::ifstream aIfstream( m_sSource.getStr() );
+    if( aIfstream.is_open() )
+    {
+        std::string s;
+        std::getline( aIfstream, s );
+        while( !aIfstream.eof() )
+        {
+            OString sLine( s.data(), s.length() );
+            if( bMergeMode ||
+                ( !sLine.startsWith(" *") && !sLine.startsWith("/*") ) )
+            {
+                m_vLines.push_back( sLine );
+            }
+            std::getline( aIfstream, s );
+        }
+    }
+    else
+    {
+        std::cerr
+            << "Propex error: Cannot open source file: "
+            << m_sSource << std::endl;
+        return;
+    }
+    m_bIsInitialized = true;
+}
+
+PropParser::~PropParser()
+{
+}
+
+//Extract strings form source file
+void PropParser::Extract( const OString& rPOFile )
+{
+    assert( m_bIsInitialized );
+    PoOfstream aPOStream( rPOFile, PoOfstream::APP );
+    if( !aPOStream.isOpen() )
+    {
+        std::cerr
+            << "Propex error: Cannot open pofile for extract: "
+            << rPOFile << std::endl;
+        return;
+    }
+
+    for( size_t nIndex = 0; nIndex < m_vLines.size(); ++nIndex )
+    {
+        const OString sLine = m_vLines[nIndex];
+        const sal_Int32 nEqualSign = sLine.indexOf('=');
+        if( nEqualSign != -1 )
+        {
+            std::string_view sID = o3tl::trim(sLine.subView( 0, nEqualSign ));
+            OString sText = lcl_ConvertToUTF8( OString(o3tl::trim(sLine.subView( nEqualSign + 1 ))) );
+
+            common::writePoEntry(
+                "Propex", aPOStream, m_sSource, "property",
+                OString(sID), OString(), OString(), sText);
+        }
+    }
+
+    aPOStream.close();
+}
+
+//Merge strings to source file
+void PropParser::Merge( const OString &rMergeSrc, const OString &rDestinationFile )
+{
+    assert( m_bIsInitialized );
+    std::ofstream aDestination(
+        rDestinationFile.getStr(), std::ios_base::out | std::ios_base::trunc );
+    if( !aDestination.is_open() ) {
+        std::cerr
+            << "Propex error: Cannot open source file for merge: "
+            << rDestinationFile << std::endl;
+        return;
+    }
+
+    std::unique_ptr<MergeDataFile> pMergeDataFile;
+    if( m_sLang != "qtz" )
+    {
+        pMergeDataFile.reset( new MergeDataFile( rMergeSrc, m_sSource, false, false ) );
+
+        const std::vector<OString> vLanguages = pMergeDataFile->GetLanguages();
+        if( !vLanguages.empty() && vLanguages[0] != m_sLang )
+        {
+            std::cerr
+                << ("Propex error: given language conflicts with language of"
+                    " Mergedata file: ")
+                << m_sLang << " - "
+                << vLanguages[0] << std::endl;
+            return;
+        }
+    }
+
+    for( size_t nIndex = 0; nIndex < m_vLines.size(); ++nIndex )
+    {
+        const OString sLine = m_vLines[nIndex];
+        const sal_Int32 nEqualSign = sLine.indexOf('=');
+        if( !sLine.startsWith(" *") && !sLine.startsWith("/*") &&
+            nEqualSign != -1 )
+        {
+            const OString sID( o3tl::trim(sLine.subView( 0, sLine.indexOf('=') )) );
+            ResData  aResData( sID, m_sSource );
+            aResData.sResTyp = "property";
+            OString sNewText;
+            if( m_sLang == "qtz" )
+            {
+                const OString sOriginText = lcl_ConvertToUTF8(OString(o3tl::trim(sLine.subView( nEqualSign + 1 ))));
+                sNewText = MergeEntrys::GetQTZText(aResData, sOriginText);
+            }
+            else if( pMergeDataFile )
+            {
+                MergeEntrys* pEntrys = pMergeDataFile->GetMergeEntrys( &aResData );
+                if( pEntrys )
+                {
+                    pEntrys->GetText( sNewText, m_sLang );
+                }
+            }
+            if( !sNewText.isEmpty() )
+            {
+                aDestination << OString(sID + "=");
+                lcl_PrintJavaStyle( sNewText, aDestination );
+                aDestination << std::endl;
+            }
+            else
+            {
+                aDestination << sLine << std::endl;
+            }
+        }
+        else
+        {
+            aDestination << sLine << std::endl;
+        }
+    }
+    aDestination.close();
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/l10ntools/source/src_yy_wrapper.c b/l10ntools/source/src_yy_wrapper.c
new file mode 100644
index 000000000..3fdcc392b
--- /dev/null
+++ b/l10ntools/source/src_yy_wrapper.c
@@ -0,0 +1,26 @@
+/* -*- 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 .
+ */
+
+// Helper to suppress warnings in lex generated c code, see #i57362#
+#include "src_yy.c"
+
+void (*avoid_unused_yyunput_in_src_yy_c)() = yyunput;
+int (*avoid_unused_yy_flex_strlen_in_src_yy_c)() = yy_flex_strlen;
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/l10ntools/source/treemerge.cxx b/l10ntools/source/treemerge.cxx
new file mode 100644
index 000000000..8e577f3da
--- /dev/null
+++ b/l10ntools/source/treemerge.cxx
@@ -0,0 +1,285 @@
+/* -*- 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/.
+ */
+
+#include <iostream>
+#include <cassert>
+#include <cstring>
+
+#include <libxml/tree.h>
+#include <libxml/parser.h>
+#include <libxml/xmlstring.h>
+
+#include <export.hxx>
+#include <helper.hxx>
+#include <common.hxx>
+#include <po.hxx>
+#include <treemerge.hxx>
+
+
+namespace
+{
+    // Extract strings from nodes on all level recursively
+    void lcl_ExtractLevel(
+        const xmlDocPtr pSource, const xmlNodePtr pRoot,
+        const xmlChar* pNodeName, PoOfstream& rPOStream )
+    {
+        if( !pRoot->children )
+        {
+            return;
+        }
+        for( xmlNodePtr pCurrent = pRoot->children->next;
+            pCurrent; pCurrent = pCurrent->next)
+        {
+            if (!xmlStrcmp(pCurrent->name, pNodeName))
+            {
+                xmlChar* pID = xmlGetProp(pCurrent, reinterpret_cast<const xmlChar*>("id"));
+                xmlChar* pText =
+                    xmlGetProp(pCurrent, reinterpret_cast<const xmlChar*>("title"));
+
+                common::writePoEntry(
+                    "Treex", rPOStream, pSource->name, helper::xmlStrToOString( pNodeName ),
+                    helper::xmlStrToOString( pID ), OString(), OString(), helper::xmlStrToOString( pText ));
+
+                xmlFree( pID );
+                xmlFree( pText );
+
+                lcl_ExtractLevel(
+                    pSource, pCurrent, reinterpret_cast<const xmlChar *>("node"),
+                    rPOStream );
+            }
+        }
+    }
+
+    // Update id and content of the topic
+    xmlNodePtr lcl_UpdateTopic(
+        const xmlNodePtr pCurrent, std::string_view rXhpRoot )
+    {
+        xmlNodePtr pReturn = pCurrent;
+        xmlChar* pID = xmlGetProp(pReturn, reinterpret_cast<const xmlChar*>("id"));
+        const OString sID =
+            helper::xmlStrToOString( pID );
+        xmlFree( pID );
+
+        const sal_Int32 nFirstSlash = sID.indexOf('/');
+        // Update id attribute of topic
+        {
+            OString sNewID =
+                OString::Concat(sID.subView( 0, nFirstSlash + 1 )) +
+                rXhpRoot.substr( rXhpRoot.rfind('/') + 1 ) +
+                sID.subView( sID.indexOf( '/', nFirstSlash + 1 ) );
+            xmlSetProp(
+                pReturn, reinterpret_cast<const xmlChar*>("id"),
+                reinterpret_cast<const xmlChar*>(sNewID.getStr()));
+        }
+
+        const OString sXhpPath =
+            OString::Concat(rXhpRoot) +
+            sID.subView(sID.indexOf('/', nFirstSlash + 1));
+        xmlDocPtr pXhpFile = xmlParseFile( sXhpPath.getStr() );
+        // if xhpfile is missing than put this topic into comment
+        if ( !pXhpFile )
+        {
+            xmlNodePtr pTemp = pReturn;
+            xmlChar* sNewID =
+                xmlGetProp(pReturn, reinterpret_cast<const xmlChar*>("id"));
+            xmlChar* sComment =
+                xmlStrcat( xmlCharStrdup("removed "), sNewID );
+            pReturn = xmlNewComment( sComment );
+            xmlReplaceNode( pTemp, pReturn );
+            xmlFree( pTemp );
+            xmlFree( sNewID );
+            xmlFree( sComment );
+        }
+        // update topic's content on the basis of xhpfile's title
+        else
+        {
+            xmlNodePtr pXhpNode = xmlDocGetRootElement( pXhpFile );
+            for( pXhpNode = pXhpNode->children;
+                pXhpNode; pXhpNode = pXhpNode->children )
+            {
+                while( pXhpNode->type != XML_ELEMENT_NODE )
+                {
+                    pXhpNode = pXhpNode->next;
+                }
+                if(!xmlStrcmp(pXhpNode->name, reinterpret_cast<const xmlChar *>("title")))
+                {
+                    xmlChar* sTitle =
+                        xmlNodeListGetString(pXhpFile, pXhpNode->children, 1);
+                    OString sNewTitle =
+                        helper::xmlStrToOString( sTitle ).
+                            replaceAll("$[officename]","%PRODUCTNAME").
+                                replaceAll("$[officeversion]","%PRODUCTVERSION");
+                    xmlNodeSetContent(
+                        pReturn,
+                        xmlEncodeSpecialChars( nullptr,
+                            reinterpret_cast<const xmlChar*>(
+                                sNewTitle.getStr() )));
+                    xmlFree( sTitle );
+                    break;
+                }
+            }
+            if( !pXhpNode )
+            {
+                std::cerr
+                    << "Treex error: Cannot find title in "
+                    << sXhpPath << std::endl;
+                pReturn = nullptr;
+            }
+            xmlFreeDoc( pXhpFile );
+            xmlCleanupParser();
+        }
+        return pReturn;
+    }
+    // Localize title attribute of help_section and node tags
+    void lcl_MergeLevel(
+        xmlDocPtr io_pSource, const xmlNodePtr pRoot,
+        const xmlChar * pNodeName, MergeDataFile* pMergeDataFile,
+        const OString& rLang, const OString& rXhpRoot )
+    {
+        if( !pRoot->children )
+        {
+            return;
+        }
+        for( xmlNodePtr pCurrent = pRoot->children;
+            pCurrent; pCurrent = pCurrent->next)
+        {
+            if( !xmlStrcmp(pCurrent->name, pNodeName) )
+            {
+                if( rLang != "en-US" )
+                {
+                    OString sNewText;
+                    xmlChar* pID = xmlGetProp(pCurrent, reinterpret_cast<const xmlChar*>("id"));
+                    ResData  aResData(
+                        helper::xmlStrToOString( pID ),
+                        static_cast<OString>(io_pSource->name) );
+                    xmlFree( pID );
+                    aResData.sResTyp = helper::xmlStrToOString( pNodeName );
+                    if( pMergeDataFile )
+                    {
+                        MergeEntrys* pEntrys =
+                            pMergeDataFile->GetMergeEntrys( &aResData );
+                        if( pEntrys )
+                        {
+                            pEntrys->GetText( sNewText, rLang );
+                        }
+                    }
+                    else if( rLang == "qtz" )
+                    {
+                        xmlChar* pText = xmlGetProp(pCurrent, reinterpret_cast<const xmlChar*>("title"));
+                        const OString sOriginText = helper::xmlStrToOString(pText);
+                        xmlFree( pText );
+                        sNewText = MergeEntrys::GetQTZText(aResData, sOriginText);
+                    }
+                    if( !sNewText.isEmpty() )
+                    {
+                        xmlSetProp(
+                            pCurrent, reinterpret_cast<const xmlChar*>("title"),
+                            reinterpret_cast<const xmlChar*>(sNewText.getStr()));
+                    }
+                }
+
+                lcl_MergeLevel(
+                    io_pSource, pCurrent, reinterpret_cast<const xmlChar *>("node"),
+                    pMergeDataFile, rLang, rXhpRoot );
+            }
+            else if( !xmlStrcmp(pCurrent->name, reinterpret_cast<const xmlChar *>("topic")) )
+            {
+                pCurrent = lcl_UpdateTopic( pCurrent, rXhpRoot );
+            }
+        }
+    }
+}
+
+TreeParser::TreeParser(
+    const OString& rInputFile, const OString& rLang )
+    : m_pSource( nullptr )
+    , m_sLang( rLang )
+    , m_bIsInitialized( false )
+{
+    m_pSource = xmlParseFile( rInputFile.getStr() );
+    if ( !m_pSource ) {
+        std::cerr
+            << "Treex error: Cannot open source file: "
+            << rInputFile << std::endl;
+        return;
+    }
+    if( !m_pSource->name )
+    {
+        m_pSource->name = static_cast<char *>(xmlMalloc(strlen(rInputFile.getStr())+1));
+        strcpy( m_pSource->name, rInputFile.getStr() );
+    }
+    m_bIsInitialized = true;
+}
+
+TreeParser::~TreeParser()
+{
+    // be sure m_pSource is freed
+    if (m_bIsInitialized)
+        xmlFreeDoc( m_pSource );
+}
+
+void TreeParser::Extract( const OString& rPOFile )
+{
+    assert( m_bIsInitialized );
+    PoOfstream aPOStream( rPOFile, PoOfstream::APP );
+    if( !aPOStream.isOpen() )
+    {
+        std::cerr
+            << "Treex error: Cannot open po file for extract: "
+            << rPOFile << std::endl;
+        return;
+    }
+
+    xmlNodePtr pRootNode = xmlDocGetRootElement( m_pSource );
+    lcl_ExtractLevel(
+        m_pSource, pRootNode, reinterpret_cast<const xmlChar *>("help_section"),
+        aPOStream );
+
+    xmlFreeDoc( m_pSource );
+    xmlCleanupParser();
+    aPOStream.close();
+    m_bIsInitialized = false;
+}
+
+void TreeParser::Merge(
+    const OString &rMergeSrc, const OString &rDestinationFile,
+    const OString &rXhpRoot )
+{
+    assert( m_bIsInitialized );
+
+    const xmlNodePtr pRootNode = xmlDocGetRootElement( m_pSource );
+    std::unique_ptr<MergeDataFile> pMergeDataFile;
+    if( m_sLang != "qtz" && m_sLang != "en-US" )
+    {
+        pMergeDataFile.reset(new MergeDataFile(
+            rMergeSrc, static_cast<OString>( m_pSource->name ), false, false ));
+        const std::vector<OString> vLanguages = pMergeDataFile->GetLanguages();
+        if( !vLanguages.empty() && vLanguages[0] != m_sLang )
+        {
+            std::cerr
+                << ("Treex error: given language conflicts with language of"
+                    " Mergedata file: ")
+                << m_sLang << " - "
+                << vLanguages[0] << std::endl;
+            return;
+        }
+    }
+    lcl_MergeLevel(
+        m_pSource, pRootNode, reinterpret_cast<const xmlChar *>("help_section"),
+        pMergeDataFile.get(), m_sLang, rXhpRoot );
+
+    pMergeDataFile.reset();
+    xmlSaveFile( rDestinationFile.getStr(), m_pSource );
+    xmlFreeDoc( m_pSource );
+    xmlCleanupParser();
+    m_bIsInitialized = false;
+}
+
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/l10ntools/source/treex.cxx b/l10ntools/source/treex.cxx
new file mode 100644
index 000000000..4e8fe0b26
--- /dev/null
+++ b/l10ntools/source/treex.cxx
@@ -0,0 +1,72 @@
+/* -*- 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/.
+ */
+
+#include <iostream>
+#include <cstring>
+#include <sal/main.h>
+
+#include <common.hxx>
+#include <treemerge.hxx>
+
+static void WriteUsage()
+{
+    std::cout
+        << ("Syntax: Treex [-r Root] -i FileIn -o FileOut"
+            " [-m DataBase] [-l Lang]\n"
+            " Root:  Path to root of localized xhp files\n"
+            " FileIn:   Source files (*.tree)\n"
+            " FileOut:  Destination file (*.*)\n"
+            " DataBase: Mergedata (*.po)\n"
+            " Lang: Restrict the handled languages; one element of\n"
+            " (de, en-US, ...) or all\n");
+}
+
+
+SAL_IMPLEMENT_MAIN_WITH_ARGS(argc, argv)
+{
+    OString sXHPRoot;
+    for (int nIndex = 1; nIndex != argc; ++nIndex)
+    {
+        if (std::strcmp(argv[nIndex], "-r") == 0)
+        {
+            sXHPRoot = OString( argv[nIndex + 1] );
+            for( int nIndex2 = nIndex+3; nIndex2 < argc; nIndex2 = nIndex2 + 2 )
+            {
+                argv[nIndex-3] = argv[nIndex-1];
+                argv[nIndex-2] = argv[nIndex];
+            }
+            argc = argc - 2;
+            break;
+        }
+    }
+    common::HandledArgs aArgs;
+    if( !common::handleArguments(argc, argv, aArgs) )
+    {
+        WriteUsage();
+        return 1;
+    }
+
+    TreeParser aParser(aArgs.m_sInputFile, aArgs.m_sLanguage );
+    if( !aParser.isInitialized() )
+    {
+        return 1;
+    }
+
+    if( aArgs.m_bMergeMode || !sXHPRoot.isEmpty() )
+    {
+        aParser.Merge( aArgs.m_sMergeSrc, aArgs.m_sOutputFile, sXHPRoot );
+    }
+    else
+    {
+        aParser.Extract( aArgs.m_sOutputFile );
+    }
+    return 0;
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/l10ntools/source/ulfconv/msi-encodinglist.txt b/l10ntools/source/ulfconv/msi-encodinglist.txt
new file mode 100644
index 000000000..eaa1754cf
--- /dev/null
+++ b/l10ntools/source/ulfconv/msi-encodinglist.txt
@@ -0,0 +1,180 @@
+#
+# 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 .
+#
+
+# Syntax: language 0 LCID
+# 2nd field used to be the ANSI codepage,
+# but now we are using UTF-8 everywhere.
+# comment lines begin with hash
+af       0  1078   # Afrikaans
+am       0  1118   # Amharic
+ar       0  1025
+ar-SA    0  1025
+as       0  1101   # Assamese
+as-IN    0  1101   # Assamese
+ast      0  1610
+be       0  1059   # Belarusian
+be-BY    0  1059
+bg       0  1026   # Bulgarian
+bn       0  2117   # Bengali
+bn-BD    0  2117   # Bengali Bangladesh
+bn-IN    0  1093   # Bengali India
+bo       0  2121
+br       0  1150   # Breton
+brx      0  1603   # Bodo (India)
+bs       0  5146   # bosnian
+ca       0  1027   # Catalan
+ca-valencia     0  2051   # Catalan Valencian
+ckb      0  1170   # Central Kurdish (Sorani)
+cs       0  1029   # Czech
+cy       0  1106   # Welsh
+da       0  1030
+de       0  1031
+dgo      0  1604   # Dogri (India)
+dsb      0  2094   # Lower Sorbian
+dz       0  3153   # Dzongkha
+el       0  1032
+en-GB    0  2057
+en-US    0  1033
+en-ZA    0  7177
+eo       0  1553   # Esperanto
+es       0  1034
+et       0  1061
+eu       0  1069   # Basque
+fa       0  1065   # Farsi
+fi       0  1035
+fo       0  1080   # Faroese
+fr       0  1036
+fr-CA    0  3084
+fy       0  1122   # Frisian
+fur      0  1585
+ga       0  2108   # Irish
+gd       0  1169   # Gaelic (Scotland)
+gl       0  1110   # Galician
+gu       0  1095   # Gujarati
+gu-IN    0  1095   # Gujarati
+gug      0  1140   # Guarani - Paraguay
+he       0  1037
+hi       0  1081
+hr       0  1050   # Croatian
+ht       0  1626   # Haitian
+hu       0  1038
+hsb      0  1070   # Upper Sorbian
+hy       0  1067   # Armenian
+id       0  1057   # Indonesian
+is       0  1039   # Icelandic
+it       0  1040
+ja       0  1041
+jbo      0  1624
+ka       0  1079   # Georgian
+kab      0  1625   # Kabyle
+kk       0  1087
+km       0  1107   # Khmer
+kmr-Latn 0  1574
+kn       0  1099   # Kannada
+kn-IN    0  1099   # Kannada
+ko       0  1042
+kok      0  1111   # Konkani
+ks       0  1120   # Kashmiri
+ky       0  1088   # Kyrgyz
+ky-CN    0  1640   # Kyrgyz (China)
+lb       0  1134
+lo       0  1108   # Lao
+lt       0  1063   # Lithuanian
+lv       0  1062   # Latvian
+mai      0  1605   # Maithili (India)
+mk       0  1071   # Macedonian
+ml       0  1100
+ml-IN    0  1100
+mn       0  1104   # Mongolian
+mni      0  1112   # Manipuri
+mn-TR    0  2128   # Mongolian Classical/traditional
+mr       0  1102   # Marathi
+mr-IN    0  1102
+ms       0  1086   # Malay (Malaysian)
+mt       0  1082   # Maltese
+my       0  1109   # Burmese
+nb       0  1044
+ne       0  1121   # Nepali
+nl       0  1043
+nn       0  2068
+no       0  1044
+nr       0  1580   # Ndebele South
+nso      0  1132
+ny       0  1598
+oc       0  1154   # Occitan-lengadocian
+om       0  1138   # Oromo
+or       0  1096   # Odia
+or-IN    0  1096
+pa-IN    0  1094   # Punjabi
+pap      0  2171
+pl       0  1045
+ps       0  2171
+pt       0  2070
+pt-BR    0  1046
+pt-PT    0  2070
+qtz      0  1638   # key id pseudo language
+rm       0  1047   # Raeto-Romance
+ro       0  1048   # Romanian
+ru       0  1049
+rw       0  1159   # Kinyarwanda
+sa-IN    0  1103   # Sanskrit
+sat      0  1606   # Santali
+sb       0  1070   # Sorbian
+sc       0  3047
+sd       0  1113   # Sindhi
+si       0  1115   # Sinhala
+sid      0  1669   # Sidama, fake LCID
+sk       0  1051   # Slovak
+sl       0  1060   # Slovenian
+sq       0  1052   # Albanian
+sr       0  3098   # Serbian Cyrillic
+sr-Latn  0  2074   # Serbian Latin
+sr-SP    0  3098   # Serbian Cyrillic
+ss       0  1579   # Swazi
+st       0  1072   # Southern Sotho, Sutu
+sv       0  1053
+sw       0  1089   # Swahili
+sw-TZ    0  1089   # Swahili
+szl      0  1689   # Silesian
+so       0  1143
+ta       0  1097   # Tamil
+ta-IN    0  1097   # Tamil
+te       0  1098
+te-IN    0  1098
+tg       0  1064   # Tajik
+th       0  1054
+ti       0  1139   # Tigrinya
+ti-ER    0  1139   # Tigrinya
+tn       0  1074   # Setsuana
+tr       0  1055   # Turkish
+ts       0  1073   # Tsonga
+tk       0  1090
+tt       0  1092   # Tatar
+ug       0  1152
+uk       0  1058   # Ukrainian
+ur       0  1056   # Urdu
+ur-IN    0  2080
+uz       0  1091   # Uzbek (Latin)
+ve       0  1075   # Venda
+vec      0  1685   # Venetian
+vi       0  1066   # Vietnamese
+xh       0  1076   # Xhosa
+yi       0  1085   # Yiddish
+zh-CN    0  2052
+zh-TW    0  1028
+zu       0  1077   # Zulu
diff --git a/l10ntools/source/xmlparse.cxx b/l10ntools/source/xmlparse.cxx
new file mode 100644
index 000000000..7e067f7f0
--- /dev/null
+++ b/l10ntools/source/xmlparse.cxx
@@ -0,0 +1,1106 @@
+/* -*- 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 <sal/config.h>
+
+#include <cassert>
+#include <stdio.h>
+#include <string_view>
+
+#include <helper.hxx>
+#include <xmlparse.hxx>
+#include <fstream>
+#include <iostream>
+#include <osl/file.hxx>
+#include <osl/process.h>
+#include <rtl/ustring.hxx>
+#include <rtl/strbuf.hxx>
+#include <unicode/regex.h>
+
+using namespace osl;
+
+constexpr OStringLiteral XML_LANG = "xml-lang";
+
+
+
+
+XMLChildNode::XMLChildNode( XMLParentNode *pPar )
+    : m_pParent( pPar )
+{
+    if ( m_pParent )
+        m_pParent->AddChild( this );
+}
+
+
+XMLChildNode::XMLChildNode( const XMLChildNode& rObj)
+    : XMLNode(rObj),
+      m_pParent(rObj.m_pParent)
+{
+}
+
+XMLChildNode& XMLChildNode::operator=(const XMLChildNode& rObj)
+{
+    if(this != &rObj)
+    {
+        m_pParent=rObj.m_pParent;
+    }
+    return *this;
+}
+
+
+
+
+XMLParentNode::~XMLParentNode()
+{
+    if( m_pChildList )
+    {
+        RemoveAndDeleteAllChildren();
+    }
+}
+
+XMLParentNode::XMLParentNode( const XMLParentNode& rObj)
+: XMLChildNode( rObj )
+{
+    if( !rObj.m_pChildList )
+        return;
+
+    m_pChildList.reset( new XMLChildNodeList );
+    for ( size_t i = 0; i < rObj.m_pChildList->size(); i++ )
+    {
+        XMLChildNode* pNode = (*rObj.m_pChildList)[ i ];
+        if( pNode != nullptr)
+        {
+            switch(pNode->GetNodeType())
+            {
+                case XMLNodeType::ELEMENT:
+                    AddChild( new XMLElement( *static_cast<XMLElement* >(pNode) ) ); break;
+                case XMLNodeType::DATA:
+                    AddChild( new XMLData   ( *static_cast<XMLData* >   (pNode) ) ); break;
+                case XMLNodeType::COMMENT:
+                    AddChild( new XMLComment( *static_cast<XMLComment* >(pNode) ) ); break;
+                case XMLNodeType::DEFAULT:
+                    AddChild( new XMLDefault( *static_cast<XMLDefault* >(pNode) ) ); break;
+                default:    fprintf(stdout,"XMLParentNode::XMLParentNode( const XMLParentNode& rObj) strange obj");
+            }
+        }
+    }
+}
+
+XMLParentNode& XMLParentNode::operator=(const XMLParentNode& rObj)
+{
+    if(this!=&rObj)
+    {
+        XMLChildNode::operator=(rObj);
+        if( m_pChildList )
+        {
+            RemoveAndDeleteAllChildren();
+        }
+        if( rObj.m_pChildList )
+        {
+            m_pChildList.reset( new XMLChildNodeList );
+            for ( size_t i = 0; i < rObj.m_pChildList->size(); i++ )
+                AddChild( (*rObj.m_pChildList)[ i ] );
+        }
+        else
+            m_pChildList.reset();
+
+    }
+    return *this;
+}
+void XMLParentNode::AddChild( XMLChildNode *pChild )
+{
+    if ( !m_pChildList )
+        m_pChildList.reset( new XMLChildNodeList );
+    m_pChildList->push_back( pChild );
+}
+
+void XMLParentNode::RemoveAndDeleteAllChildren()
+{
+    if ( m_pChildList )
+    {
+        for ( size_t i = 0; i < m_pChildList->size(); i++ )
+            delete (*m_pChildList)[ i ];
+        m_pChildList->clear();
+    }
+}
+
+
+
+
+void XMLFile::Write( OString const &aFilename )
+{
+    std::ofstream s(
+        aFilename.getStr(), std::ios_base::out | std::ios_base::trunc);
+    if (!s.is_open())
+    {
+        std::cerr
+            << "Error: helpex cannot create file " << aFilename
+            << '\n';
+        std::exit(EXIT_FAILURE);
+    }
+    Write(s);
+    s.close();
+}
+
+void XMLFile::Write( std::ofstream &rStream , XMLNode *pCur )
+{
+    if ( !pCur )
+        Write( rStream, this );
+    else {
+        switch( pCur->GetNodeType())
+        {
+            case XMLNodeType::XFILE:
+            {
+                if( GetChildList())
+                    for ( size_t i = 0; i < GetChildList()->size(); i++ )
+                        Write( rStream, (*GetChildList())[ i ] );
+            }
+            break;
+            case XMLNodeType::ELEMENT:
+            {
+                XMLElement *pElement = static_cast<XMLElement*>(pCur);
+                rStream  << "<";
+                rStream << pElement->GetName();
+                if ( pElement->GetAttributeList())
+                    for ( size_t j = 0; j < pElement->GetAttributeList()->size(); j++ )
+                    {
+                        rStream << " ";
+                        OString sData( (*pElement->GetAttributeList())[ j ]->GetName() );
+                        rStream << XMLUtil::QuotHTML( sData );
+                        rStream << "=\"";
+                        sData = (*pElement->GetAttributeList())[ j ]->GetValue();
+                        rStream << XMLUtil::QuotHTML( sData );
+                        rStream << "\"";
+                    }
+                if ( !pElement->GetChildList())
+                    rStream << "/>";
+                else
+                {
+                    rStream << ">";
+                    for ( size_t k = 0; k < pElement->GetChildList()->size(); k++ )
+                        Write( rStream, (*pElement->GetChildList())[ k ] );
+                    rStream << "</";
+                    rStream << pElement->GetName();
+                    rStream << ">";
+                }
+            }
+            break;
+            case XMLNodeType::DATA:
+            {
+                OString sData( static_cast<const XMLData*>(pCur)->GetData());
+                rStream << XMLUtil::QuotHTML( sData );
+            }
+            break;
+            case XMLNodeType::COMMENT:
+            {
+                const XMLComment *pComment = static_cast<const XMLComment*>(pCur);
+                rStream << "<!--";
+                rStream <<  pComment->GetComment();
+                rStream << "-->";
+            }
+            break;
+            case XMLNodeType::DEFAULT:
+            {
+                const XMLDefault *pDefault = static_cast<const XMLDefault*>(pCur);
+                rStream <<  pDefault->GetDefault();
+            }
+            break;
+        }
+    }
+}
+
+void XMLFile::Print( XMLNode *pCur, sal_uInt16 nLevel )
+{
+    if ( !pCur )
+        Print( this );
+    else
+    {
+        switch( pCur->GetNodeType())
+        {
+            case XMLNodeType::XFILE:
+            {
+                if( GetChildList())
+                    for ( size_t i = 0; i < GetChildList()->size(); i++ )
+                        Print( (*GetChildList())[ i ] );
+            }
+            break;
+            case XMLNodeType::ELEMENT:
+            {
+                XMLElement *pElement = static_cast<XMLElement*>(pCur);
+
+                fprintf( stdout, "<%s", pElement->GetName().getStr());
+                if ( pElement->GetAttributeList())
+                {
+                    for (size_t j = 0; j < pElement->GetAttributeList()->size(); ++j)
+                    {
+                        const OString aAttrName((*pElement->GetAttributeList())[j]->GetName());
+                        if (aAttrName != XML_LANG)
+                        {
+                            fprintf( stdout, " %s=\"%s\"",
+                                aAttrName.getStr(),
+                                (*pElement->GetAttributeList())[ j ]->GetValue().getStr());
+                        }
+                    }
+                }
+                if ( !pElement->GetChildList())
+                    fprintf( stdout, "/>" );
+                else
+                {
+                    fprintf( stdout, ">" );
+                    for ( size_t k = 0; k < pElement->GetChildList()->size(); k++ )
+                        Print( (*pElement->GetChildList())[ k ], nLevel + 1 );
+                    fprintf( stdout, "</%s>", pElement->GetName().getStr());
+                }
+            }
+            break;
+            case XMLNodeType::DATA:
+            {
+                const XMLData *pData = static_cast<const XMLData*>(pCur);
+                fprintf( stdout, "%s", pData->GetData().getStr());
+            }
+            break;
+            case XMLNodeType::COMMENT:
+            {
+                const XMLComment *pComment = static_cast<const XMLComment*>(pCur);
+                fprintf( stdout, "<!--%s-->", pComment->GetComment().getStr());
+            }
+            break;
+            case XMLNodeType::DEFAULT:
+            {
+                const XMLDefault *pDefault = static_cast<const XMLDefault*>(pCur);
+                fprintf( stdout, "%s", pDefault->GetDefault().getStr());
+            }
+            break;
+        }
+    }
+}
+XMLFile::~XMLFile()
+{
+    if( m_pXMLStrings )
+    {
+        for (auto const& pos : *m_pXMLStrings)
+        {
+            delete pos.second;             // Check and delete content also ?
+        }
+    }
+}
+
+XMLFile::XMLFile( const OString &rFileName ) // the file name, empty if created from memory stream
+    : XMLParentNode( nullptr )
+    , m_sFileName( rFileName )
+{
+    m_aNodes_localize.emplace( OString("bookmark") , true );
+    m_aNodes_localize.emplace( OString("variable") , true );
+    m_aNodes_localize.emplace( OString("paragraph") , true );
+    m_aNodes_localize.emplace( OString("h1") , true );
+    m_aNodes_localize.emplace( OString("h2") , true );
+    m_aNodes_localize.emplace( OString("h3") , true );
+    m_aNodes_localize.emplace( OString("h4") , true );
+    m_aNodes_localize.emplace( OString("h5") , true );
+    m_aNodes_localize.emplace( OString("h6") , true );
+    m_aNodes_localize.emplace( OString("note") , true );
+    m_aNodes_localize.emplace( OString("tip") , true );
+    m_aNodes_localize.emplace( OString("warning") , true );
+    m_aNodes_localize.emplace( OString("alt") , true );
+    m_aNodes_localize.emplace( OString("caption") , true );
+    m_aNodes_localize.emplace( OString("title") , true );
+    m_aNodes_localize.emplace( OString("link") , true );
+}
+
+void XMLFile::Extract()
+{
+    m_pXMLStrings.reset( new XMLHashMap );
+    SearchL10NElements( this );
+}
+
+void XMLFile::InsertL10NElement( XMLElement* pElement )
+{
+    OString sId, sLanguage("en-US");
+    LangHashMap* pElem;
+
+    if( pElement->GetAttributeList() != nullptr )
+    {
+        for ( size_t j = 0; j < pElement->GetAttributeList()->size(); j++ )
+        {
+            const OString sTempStr((*pElement->GetAttributeList())[ j ]->GetName());
+            // Get the "id" Attribute
+            if (sTempStr == "id")
+            {
+                sId = (*pElement->GetAttributeList())[ j ]->GetValue();
+            }
+            // Get the "xml-lang" Attribute
+            if (sTempStr == XML_LANG)
+            {
+                sLanguage = (*pElement->GetAttributeList())[j]->GetValue();
+            }
+
+        }
+    }
+    else
+    {
+        fprintf(stdout,"XMLFile::InsertL10NElement: No AttributeList found");
+        fprintf(stdout,"++++++++++++++++++++++++++++++++++++++++++++++++++");
+        Print( pElement );
+        fprintf(stdout,"++++++++++++++++++++++++++++++++++++++++++++++++++");
+    }
+
+    XMLHashMap::iterator pos = m_pXMLStrings->find( sId );
+    if( pos == m_pXMLStrings->end() ) // No instance, create new one
+    {
+        pElem = new LangHashMap;
+        (*pElem)[ sLanguage ]=pElement;
+        m_pXMLStrings->emplace( sId , pElem );
+        m_vOrder.push_back( sId );
+    }
+    else        // Already there
+    {
+        pElem=pos->second;
+        if ( pElem->count(sLanguage) )
+        {
+            fprintf(stdout,"Error: Duplicated entry. ID = %s  LANG = %s in File %s\n", sId.getStr(), sLanguage.getStr(), m_sFileName.getStr() );
+            exit( -1 );
+        }
+        (*pElem)[ sLanguage ]=pElement;
+    }
+}
+
+XMLFile::XMLFile( const XMLFile& rObj )
+    : XMLParentNode( rObj )
+    , m_sFileName( rObj.m_sFileName )
+{
+    if( this != &rObj )
+    {
+        m_aNodes_localize = rObj.m_aNodes_localize;
+        m_vOrder = rObj.m_vOrder;
+    }
+}
+
+XMLFile& XMLFile::operator=(const XMLFile& rObj)
+{
+    if( this == &rObj )
+        return *this;
+
+    XMLParentNode::operator=(rObj);
+
+    m_aNodes_localize = rObj.m_aNodes_localize;
+    m_vOrder = rObj.m_vOrder;
+
+    m_pXMLStrings.reset();
+
+    if( rObj.m_pXMLStrings )
+    {
+        m_pXMLStrings.reset( new XMLHashMap );
+        for (auto const& pos : *rObj.m_pXMLStrings)
+        {
+            LangHashMap* pElem=pos.second;
+            LangHashMap* pNewelem = new LangHashMap;
+            for (auto const& pos2 : *pElem)
+            {
+                (*pNewelem)[ pos2.first ] = new XMLElement( *pos2.second );
+            }
+            (*m_pXMLStrings)[ pos.first ] = pNewelem;
+        }
+    }
+    return *this;
+}
+
+void XMLFile::SearchL10NElements( XMLChildNode *pCur )
+{
+    if ( !pCur )
+        SearchL10NElements( this  );
+    else
+    {
+        switch( pCur->GetNodeType())
+        {
+            case XMLNodeType::XFILE:
+            {
+                if( GetChildList())
+                {
+                    for ( size_t i = 0; i < GetChildList()->size(); i++ )
+                    {
+                        XMLChildNode* pElement = (*GetChildList())[ i ];
+                        if( pElement->GetNodeType() ==  XMLNodeType::ELEMENT )
+                            SearchL10NElements( pElement );
+                    }
+                }
+            }
+            break;
+            case XMLNodeType::ELEMENT:
+            {
+                bool bInsert = true;
+                XMLElement *pElement = static_cast<XMLElement*>(pCur);
+                const OString sName(pElement->GetName().toAsciiLowerCase());
+                if ( pElement->GetAttributeList())
+                {
+                    for ( size_t j = 0 , cnt = pElement->GetAttributeList()->size(); j < cnt && bInsert; ++j )
+                    {
+                        if ((*pElement->GetAttributeList())[j]->GetName() == "localize")
+                        {
+                            bInsert=false;
+                            break;
+                        }
+                    }
+                }
+
+                if ( bInsert && ( m_aNodes_localize.find( sName ) != m_aNodes_localize.end() ) )
+                    InsertL10NElement(pElement);
+                else if ( bInsert && pElement->GetChildList() )
+                {
+                    for ( size_t k = 0; k < pElement->GetChildList()->size(); k++ )
+                        SearchL10NElements( (*pElement->GetChildList())[ k ] );
+                }
+            }
+            break;
+            default:
+            break;
+        }
+    }
+}
+
+bool XMLFile::CheckExportStatus( XMLParentNode *pCur )
+{
+    static bool bStatusExport = true;
+
+    if ( !pCur )
+        CheckExportStatus( this );
+    else {
+        switch( pCur->GetNodeType())
+        {
+            case XMLNodeType::XFILE:
+            {
+                if( GetChildList())
+                {
+                    for ( size_t i = 0; i < GetChildList()->size(); i++ )
+                    {
+                        XMLParentNode* pElement = static_cast<XMLParentNode*>((*GetChildList())[ i ]);
+                        if( pElement->GetNodeType() ==  XMLNodeType::ELEMENT ) CheckExportStatus( pElement );//, i);
+                    }
+                }
+            }
+            break;
+            case XMLNodeType::ELEMENT:
+            {
+                XMLElement *pElement = static_cast<XMLElement*>(pCur);
+                if (pElement->GetName().equalsIgnoreAsciiCase("TOPIC"))
+                {
+                    if ( pElement->GetAttributeList())
+                    {
+                        for (size_t j = 0 , cnt = pElement->GetAttributeList()->size(); j < cnt; ++j)
+                        {
+                            const OString tmpStr((*pElement->GetAttributeList())[j]->GetName());
+                            if (tmpStr.equalsIgnoreAsciiCase("STATUS"))
+                            {
+                                const OString tmpStrVal((*pElement->GetAttributeList())[j]->GetValue());
+                                if (!tmpStrVal.equalsIgnoreAsciiCase("PUBLISH") &&
+                                    !tmpStrVal.equalsIgnoreAsciiCase("DEPRECATED"))
+                                {
+                                    bStatusExport = false;
+                                }
+                            }
+
+                        }
+                    }
+                }
+                else if ( pElement->GetChildList() )
+                {
+                    for (size_t k = 0; k < pElement->GetChildList()->size(); ++k)
+                        CheckExportStatus( static_cast<XMLParentNode*>((*pElement->GetChildList())[k]) );
+                }
+            }
+            break;
+            default:
+            break;
+        }
+    }
+    return bStatusExport;
+}
+
+XMLElement::XMLElement(
+    const OString &rName,    // the element name
+    XMLParentNode *pParent   // parent node of this element
+)
+    : XMLParentNode( pParent )
+    , m_sElementName( rName )
+{
+}
+
+XMLElement::XMLElement(const XMLElement& rObj)
+    : XMLParentNode( rObj )
+    , m_sElementName( rObj.m_sElementName )
+{
+    if ( rObj.m_pAttributes )
+    {
+        m_pAttributes.reset( new XMLAttributeList );
+        for ( size_t i = 0; i < rObj.m_pAttributes->size(); i++ )
+            AddAttribute( (*rObj.m_pAttributes)[ i ]->GetName(), (*rObj.m_pAttributes)[ i ]->GetValue() );
+    }
+}
+
+XMLElement& XMLElement::operator=(const XMLElement& rObj)
+{
+    if( this !=& rObj )
+    {
+        XMLParentNode::operator=(rObj);
+        m_sElementName = rObj.m_sElementName;
+
+        if ( m_pAttributes )
+        {
+            for ( size_t i = 0; i < m_pAttributes->size(); i++ )
+                delete (*m_pAttributes)[ i ];
+            m_pAttributes.reset();
+        }
+        if ( rObj.m_pAttributes )
+        {
+            m_pAttributes.reset( new XMLAttributeList );
+            for ( size_t i = 0; i < rObj.m_pAttributes->size(); i++ )
+                AddAttribute( (*rObj.m_pAttributes)[ i ]->GetName(), (*rObj.m_pAttributes)[ i ]->GetValue() );
+        }
+    }
+    return *this;
+}
+
+void XMLElement::AddAttribute( const OString &rAttribute, const OString &rValue )
+{
+    if ( !m_pAttributes )
+        m_pAttributes.reset( new XMLAttributeList );
+    m_pAttributes->push_back( new XMLAttribute( rAttribute, rValue ) );
+}
+
+void XMLElement::ChangeLanguageTag( const OString &rValue )
+{
+    if ( m_pAttributes )
+    {
+        bool bWasSet = false;
+        for (size_t i = 0; i < m_pAttributes->size(); ++i)
+        {
+            if ((*m_pAttributes)[ i ]->GetName() == XML_LANG)
+            {
+                (*m_pAttributes)[ i ]->setValue(rValue);
+                bWasSet = true;
+            }
+        }
+
+        if (!bWasSet)
+            AddAttribute(XML_LANG, rValue);
+    }
+    XMLChildNodeList* pCList = GetChildList();
+
+    if( !pCList )
+        return;
+
+    for ( size_t i = 0; i < pCList->size(); i++ )
+    {
+        XMLChildNode* pNode = (*pCList)[ i ];
+        if( pNode && pNode->GetNodeType() == XMLNodeType::ELEMENT )
+        {
+            XMLElement* pElem = static_cast< XMLElement* >(pNode);
+            pElem->ChangeLanguageTag( rValue );
+            pElem  = nullptr;
+            pNode  = nullptr;
+        }
+    }
+    pCList = nullptr;
+}
+
+XMLElement::~XMLElement()
+{
+    if ( m_pAttributes )
+    {
+        for ( size_t i = 0; i < m_pAttributes->size(); i++ )
+            delete (*m_pAttributes)[ i ];
+    }
+}
+
+OString XMLElement::ToOString()
+{
+    OStringBuffer sBuffer;
+    Print(this,sBuffer,true);
+    return sBuffer.makeStringAndClear();
+}
+
+void XMLElement::Print(XMLNode *pCur, OStringBuffer& rBuffer, bool bRootelement ) const
+{
+    if( pCur )
+    {
+        if( bRootelement )
+        {
+            XMLElement *pElement = static_cast<XMLElement*>(pCur);
+            if ( pElement->GetAttributeList())
+            {
+                if ( pElement->GetChildList())
+                {
+                    for ( size_t k = 0; k < pElement->GetChildList()->size(); k++ )
+                    {
+                        XMLChildNode* pTmp = (*pElement->GetChildList())[ k ];
+                        Print( pTmp, rBuffer , false);
+                    }
+                }
+            }
+        }
+        else
+        {
+            switch( pCur->GetNodeType())
+            {
+                case XMLNodeType::ELEMENT:
+                {
+                    XMLElement *pElement = static_cast<XMLElement*>(pCur);
+
+                    if( !pElement->GetName().equalsIgnoreAsciiCase("comment") )
+                    {
+                        rBuffer.append( "<" );
+                        rBuffer.append( pElement->GetName() );
+                        if ( pElement->GetAttributeList())
+                        {
+                            for ( size_t j = 0; j < pElement->GetAttributeList()->size(); j++ )
+                            {
+                                const OString aAttrName( (*pElement->GetAttributeList())[ j ]->GetName() );
+                                if (aAttrName != XML_LANG)
+                                {
+                                    rBuffer.append(
+                                        " " + aAttrName + "=\"" +
+                                        (*pElement->GetAttributeList())[ j ]->GetValue() + "\"" );
+                                }
+                            }
+                        }
+                        if ( !pElement->GetChildList())
+                            rBuffer.append( "/>" );
+                        else
+                        {
+                            rBuffer.append( ">" );
+                            for ( size_t k = 0; k < pElement->GetChildList()->size(); k++ )
+                            {
+                                XMLChildNode* pTmp = (*pElement->GetChildList())[ k ];
+                                Print( pTmp, rBuffer , false);
+                            }
+                            rBuffer.append( "</" + pElement->GetName() + ">" );
+                        }
+                    }
+                }
+                break;
+                case XMLNodeType::DATA:
+                {
+                    const XMLData *pData = static_cast<const XMLData*>(pCur);
+                    rBuffer.append( pData->GetData() );
+                }
+                break;
+                case XMLNodeType::COMMENT:
+                {
+                    const XMLComment *pComment = static_cast<const XMLComment*>(pCur);
+                    rBuffer.append( "<!--" + pComment->GetComment() + "-->" );
+                }
+                break;
+                case XMLNodeType::DEFAULT:
+                {
+                    const XMLDefault *pDefault = static_cast<const XMLDefault*>(pCur);
+                    rBuffer.append( pDefault->GetDefault() );
+                }
+                break;
+                default:
+                break;
+            }
+        }
+    }
+    else
+    {
+        fprintf(stdout,"\n#+------Error: NULL Pointer in XMLELement::Print------+#\n");
+        return;
+    }
+}
+
+
+
+
+namespace
+{
+
+OUString lcl_pathnameToAbsoluteUrl(std::string_view rPathname)
+{
+    OUString sPath = OStringToOUString(rPathname, RTL_TEXTENCODING_UTF8 );
+    OUString sUrl;
+    if (osl::FileBase::getFileURLFromSystemPath(sPath, sUrl)
+        != osl::FileBase::E_None)
+    {
+        std::cerr << "Error: Cannot convert input pathname to URL\n";
+        std::exit(EXIT_FAILURE);
+    }
+    OUString sCwd;
+    if (osl_getProcessWorkingDir(&sCwd.pData) != osl_Process_E_None)
+    {
+        std::cerr << "Error: Cannot determine cwd\n";
+        std::exit(EXIT_FAILURE);
+    }
+    if (osl::FileBase::getAbsoluteFileURL(sCwd, sUrl, sUrl)
+        != osl::FileBase::E_None)
+    {
+        std::cerr << "Error: Cannot convert input URL to absolute URL\n";
+        std::exit(EXIT_FAILURE);
+    }
+    return sUrl;
+}
+}
+
+
+SimpleXMLParser::SimpleXMLParser()
+    : m_pCurNode(nullptr)
+    , m_pCurData(nullptr)
+{
+    m_aParser = XML_ParserCreate( nullptr );
+    XML_SetUserData( m_aParser, this );
+    XML_SetElementHandler( m_aParser, StartElementHandler, EndElementHandler );
+    XML_SetCharacterDataHandler( m_aParser, CharacterDataHandler );
+    XML_SetCommentHandler( m_aParser, CommentHandler );
+    XML_SetDefaultHandler( m_aParser, DefaultHandler );
+}
+
+SimpleXMLParser::~SimpleXMLParser()
+{
+    XML_ParserFree( m_aParser );
+}
+
+void SimpleXMLParser::StartElementHandler(
+    void *userData, const XML_Char *name, const XML_Char **atts )
+{
+    static_cast<SimpleXMLParser *>(userData)->StartElement( name, atts );
+}
+
+void SimpleXMLParser::EndElementHandler(
+    void *userData, const XML_Char * /*name*/ )
+{
+    static_cast<SimpleXMLParser *>(userData)->EndElement();
+}
+
+void SimpleXMLParser::CharacterDataHandler(
+    void *userData, const XML_Char *s, int len )
+{
+    static_cast<SimpleXMLParser *>(userData)->CharacterData( s, len );
+}
+
+void SimpleXMLParser::CommentHandler(
+    void *userData, const XML_Char *data )
+{
+    static_cast<SimpleXMLParser *>(userData)->Comment( data );
+}
+
+void SimpleXMLParser::DefaultHandler(
+    void *userData, const XML_Char *s, int len )
+{
+    static_cast<SimpleXMLParser *>(userData)->Default( s, len );
+}
+
+void SimpleXMLParser::StartElement(
+    const XML_Char *name, const XML_Char **atts )
+{
+    XMLElement *pElement = new XMLElement( OString(name), m_pCurNode );
+    m_pCurNode = pElement;
+    m_pCurData = nullptr;
+
+    int i = 0;
+    while( atts[i] )
+    {
+        pElement->AddAttribute( atts[ i ], atts[ i + 1 ] );
+        i += 2;
+    }
+}
+
+void SimpleXMLParser::EndElement()
+{
+    m_pCurNode = m_pCurNode->GetParent();
+    m_pCurData = nullptr;
+}
+
+void SimpleXMLParser::CharacterData( const XML_Char *s, int len )
+{
+    if ( !m_pCurData )
+    {
+        OString x( s, len );
+        m_pCurData = new XMLData( helper::UnQuotHTML(x) , m_pCurNode );
+    }
+    else
+    {
+        OString x( s, len );
+        m_pCurData->AddData( helper::UnQuotHTML(x) );
+
+    }
+}
+
+void SimpleXMLParser::Comment( const XML_Char *data )
+{
+    m_pCurData = nullptr;
+    new XMLComment( OString( data ), m_pCurNode );
+}
+
+void SimpleXMLParser::Default( const XML_Char *s, int len )
+{
+    m_pCurData = nullptr;
+    new XMLDefault(OString( s, len ), m_pCurNode );
+}
+
+bool SimpleXMLParser::Execute( const OString &rFileName, XMLFile* pXMLFile )
+{
+    m_aErrorInformation.m_eCode = XML_ERROR_NONE;
+    m_aErrorInformation.m_nLine = 0;
+    m_aErrorInformation.m_nColumn = 0;
+    m_aErrorInformation.m_sMessage = "ERROR: Unable to open file ";
+    m_aErrorInformation.m_sMessage += rFileName;
+
+    OUString aFileURL(lcl_pathnameToAbsoluteUrl(rFileName));
+
+    oslFileHandle h;
+    if (osl_openFile(aFileURL.pData, &h, osl_File_OpenFlag_Read)
+        != osl_File_E_None)
+    {
+        return false;
+    }
+
+    sal_uInt64 s;
+    oslFileError e = osl_getFileSize(h, &s);
+    void * p = nullptr;
+    if (e == osl_File_E_None)
+    {
+        e = osl_mapFile(h, &p, s, 0, 0);
+    }
+    if (e != osl_File_E_None)
+    {
+        osl_closeFile(h);
+        return false;
+    }
+
+    pXMLFile->SetName( rFileName );
+
+    m_pCurNode = pXMLFile;
+    m_pCurData = nullptr;
+
+    m_aErrorInformation.m_eCode = XML_ERROR_NONE;
+    m_aErrorInformation.m_nLine = 0;
+    m_aErrorInformation.m_nColumn = 0;
+    if ( !pXMLFile->GetName().isEmpty())
+    {
+        m_aErrorInformation.m_sMessage = "File " + pXMLFile->GetName() + " parsed successfully";
+    }
+    else
+        m_aErrorInformation.m_sMessage = "XML-File parsed successfully";
+
+    bool result = XML_Parse(m_aParser, static_cast< char * >(p), s, true);
+    if (!result)
+    {
+        m_aErrorInformation.m_eCode = XML_GetErrorCode( m_aParser );
+        m_aErrorInformation.m_nLine = XML_GetErrorLineNumber( m_aParser );
+        m_aErrorInformation.m_nColumn = XML_GetErrorColumnNumber( m_aParser );
+
+        m_aErrorInformation.m_sMessage = "ERROR: ";
+        if ( !pXMLFile->GetName().isEmpty())
+            m_aErrorInformation.m_sMessage += pXMLFile->GetName();
+        else
+            m_aErrorInformation.m_sMessage += "XML-File (";
+
+        m_aErrorInformation.m_sMessage +=
+            OString::number(sal::static_int_cast< sal_Int64 >(m_aErrorInformation.m_nLine)) + "," +
+            OString::number(sal::static_int_cast< sal_Int64 >(m_aErrorInformation.m_nColumn)) + "): ";
+
+        switch (m_aErrorInformation.m_eCode)
+        {
+        case XML_ERROR_NO_MEMORY:
+            m_aErrorInformation.m_sMessage += "No memory";
+            break;
+        case XML_ERROR_SYNTAX:
+            m_aErrorInformation.m_sMessage += "Syntax";
+            break;
+        case XML_ERROR_NO_ELEMENTS:
+            m_aErrorInformation.m_sMessage += "No elements";
+            break;
+        case XML_ERROR_INVALID_TOKEN:
+            m_aErrorInformation.m_sMessage += "Invalid token";
+            break;
+        case XML_ERROR_UNCLOSED_TOKEN:
+            m_aErrorInformation.m_sMessage += "Unclosed token";
+            break;
+        case XML_ERROR_PARTIAL_CHAR:
+            m_aErrorInformation.m_sMessage += "Partial char";
+            break;
+        case XML_ERROR_TAG_MISMATCH:
+            m_aErrorInformation.m_sMessage += "Tag mismatch";
+            break;
+        case XML_ERROR_DUPLICATE_ATTRIBUTE:
+            m_aErrorInformation.m_sMessage += "Duplicated attribute";
+            break;
+        case XML_ERROR_JUNK_AFTER_DOC_ELEMENT:
+            m_aErrorInformation.m_sMessage += "Junk after doc element";
+            break;
+        case XML_ERROR_PARAM_ENTITY_REF:
+            m_aErrorInformation.m_sMessage += "Param entity ref";
+            break;
+        case XML_ERROR_UNDEFINED_ENTITY:
+            m_aErrorInformation.m_sMessage += "Undefined entity";
+            break;
+        case XML_ERROR_RECURSIVE_ENTITY_REF:
+            m_aErrorInformation.m_sMessage += "Recursive entity ref";
+            break;
+        case XML_ERROR_ASYNC_ENTITY:
+            m_aErrorInformation.m_sMessage += "Async_entity";
+            break;
+        case XML_ERROR_BAD_CHAR_REF:
+            m_aErrorInformation.m_sMessage += "Bad char ref";
+            break;
+        case XML_ERROR_BINARY_ENTITY_REF:
+            m_aErrorInformation.m_sMessage += "Binary entity";
+            break;
+        case XML_ERROR_ATTRIBUTE_EXTERNAL_ENTITY_REF:
+            m_aErrorInformation.m_sMessage += "Attribute external entity ref";
+            break;
+        case XML_ERROR_MISPLACED_XML_PI:
+            m_aErrorInformation.m_sMessage += "Misplaced xml pi";
+            break;
+        case XML_ERROR_UNKNOWN_ENCODING:
+            m_aErrorInformation.m_sMessage += "Unknown encoding";
+            break;
+        case XML_ERROR_INCORRECT_ENCODING:
+            m_aErrorInformation.m_sMessage += "Incorrect encoding";
+            break;
+        case XML_ERROR_UNCLOSED_CDATA_SECTION:
+            m_aErrorInformation.m_sMessage += "Unclosed cdata section";
+            break;
+        case XML_ERROR_EXTERNAL_ENTITY_HANDLING:
+            m_aErrorInformation.m_sMessage += "External entity handling";
+            break;
+        case XML_ERROR_NOT_STANDALONE:
+            m_aErrorInformation.m_sMessage += "Not standalone";
+            break;
+        case XML_ERROR_NONE:
+            break;
+        default:
+            break;
+        }
+    }
+
+    osl_unmapMappedFile(h, p, s);
+    osl_closeFile(h);
+
+    return result;
+}
+
+namespace
+{
+
+icu::UnicodeString lcl_QuotRange(
+    const icu::UnicodeString& rString, const sal_Int32 nStart,
+    const sal_Int32 nEnd, bool bInsideTag = false )
+{
+    icu::UnicodeString sReturn;
+    assert( nStart < nEnd );
+    assert( nStart >= 0 );
+    assert( nEnd <= rString.length() );
+    for (sal_Int32 i = nStart; i < nEnd; ++i)
+    {
+        switch (rString[i])
+        {
+            case '<':
+                sReturn.append("&lt;");
+                break;
+            case '>':
+                sReturn.append("&gt;");
+                break;
+            case '"':
+                if( !bInsideTag )
+                    sReturn.append("&quot;");
+                else
+                    sReturn.append(rString[i]);
+                break;
+            case '&':
+                if (rString.startsWith("&amp;", i, 5))
+                    sReturn.append('&');
+                else
+                    sReturn.append("&amp;");
+                break;
+            default:
+                sReturn.append(rString[i]);
+                break;
+        }
+    }
+    return sReturn;
+}
+
+bool lcl_isTag( const icu::UnicodeString& rString )
+{
+    static const int nSize = 20;
+    static const icu::UnicodeString vTags[nSize] = {
+        "ahelp", "link", "item", "emph", "defaultinline",
+        "switchinline", "caseinline", "variable",
+        "bookmark_value", "image", "object",
+        "embedvar", "alt", "sup", "sub",
+        "menuitem", "keycode", "input", "literal", "widget"
+    };
+
+    for( int nIndex = 0; nIndex < nSize; ++nIndex )
+    {
+        if( rString.startsWith("<" + vTags[nIndex]) ||
+             rString == "</" + vTags[nIndex] + ">" )
+            return true;
+    }
+
+    return rString == "<br/>" || rString =="<help-id-missing/>";
+}
+
+} /// anonymous namespace
+
+OString XMLUtil::QuotHTML( const OString &rString )
+{
+    if( rString.trim().isEmpty() )
+        return rString;
+    UErrorCode nIcuErr = U_ZERO_ERROR;
+    static const sal_uInt32 nSearchFlags =
+        UREGEX_DOTALL | UREGEX_CASE_INSENSITIVE;
+    static const icu::UnicodeString sSearchPat( "<[/]\?\?[a-z_-]+?(?:| +[a-z]+?=\".*?\") *[/]\?\?>" );
+
+    const OUString sOUSource = OStringToOUString(rString, RTL_TEXTENCODING_UTF8);
+    icu::UnicodeString sSource(
+        reinterpret_cast<const UChar*>(
+            sOUSource.getStr()), sOUSource.getLength() );
+
+    icu::RegexMatcher aRegexMatcher( sSearchPat, nSearchFlags, nIcuErr );
+    aRegexMatcher.reset( sSource );
+
+    icu::UnicodeString sReturn;
+    int32_t nEndPos = 0;
+    int32_t nStartPos = 0;
+    while( aRegexMatcher.find(nStartPos, nIcuErr) && U_SUCCESS(nIcuErr) )
+    {
+        nStartPos = aRegexMatcher.start(nIcuErr);
+        if ( nEndPos < nStartPos )
+            sReturn.append(lcl_QuotRange(sSource, nEndPos, nStartPos));
+        nEndPos = aRegexMatcher.end(nIcuErr);
+        icu::UnicodeString sMatch = aRegexMatcher.group(nIcuErr);
+        if( lcl_isTag(sMatch) )
+        {
+            sReturn.append("<");
+            sReturn.append(lcl_QuotRange(sSource, nStartPos+1, nEndPos-1, true));
+            sReturn.append(">");
+        }
+        else
+            sReturn.append(lcl_QuotRange(sSource, nStartPos, nEndPos));
+        nStartPos = nEndPos;
+    }
+    if( nEndPos < sSource.length() )
+        sReturn.append(lcl_QuotRange(sSource, nEndPos, sSource.length()));
+    sReturn.append('\0');
+    return
+        OUStringToOString(
+            reinterpret_cast<const sal_Unicode*>(sReturn.getBuffer()),
+            RTL_TEXTENCODING_UTF8);
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/l10ntools/source/xrm_yy_wrapper.c b/l10ntools/source/xrm_yy_wrapper.c
new file mode 100644
index 000000000..36f902e0f
--- /dev/null
+++ b/l10ntools/source/xrm_yy_wrapper.c
@@ -0,0 +1,26 @@
+/* -*- 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 .
+ */
+
+// Helper to suppress warnings in lex generated c code, see #i57362#
+#include "xrm_yy.c"
+
+void (*avoid_unused_yyunput_in_xrm_yy_c)() = yyunput;
+int (*avoid_unused_yy_flex_strlen_in_xrm_yy_c)() = yy_flex_strlen;
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/l10ntools/source/xrmlex.l b/l10ntools/source/xrmlex.l
new file mode 100644
index 000000000..0644a5bc2
--- /dev/null
+++ b/l10ntools/source/xrmlex.l
@@ -0,0 +1,218 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4; fill-column: 100 -*- */
+/*
+ * 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 .
+ */
+
+%{
+
+/*
+ * lexer for parsing xml-property source files (*.xml)
+ */
+
+#include <sal/config.h>
+
+/* enlarge token buffer to tokenize whole strings */
+#undef YYLMAX
+#define YYLMAX 64000
+
+/* to enable debug output define LEXDEBUG */
+#define LEXDEBUG        1
+#ifdef LEXDEBUG
+#define OUTPUT  fprintf
+#else
+#define OUTPUT(Par1,Par2);
+#endif
+
+/* table of possible token ids */
+#include <tokens.h>
+#include <xrmlex.hxx>
+#include <stdlib.h>
+#include <stdio.h>
+
+#include <sal/main.h>
+
+#define YY_NO_UNISTD_H
+
+static int bText=0;
+%}
+
+%option yylineno
+%option nounput
+%option never-interactive
+
+%p 24000
+%e 1200
+%n 500
+
+%%
+
+"<p "[^\>]*xml:lang[^\>]*\> {
+    WorkOnTokenSet( XRM_TEXT_START , yytext );
+}
+
+"</p>" {
+    WorkOnTokenSet( XRM_TEXT_END, yytext );
+}
+
+"<h1 "[^\>]*xml:lang[^\>]*\> {
+    WorkOnTokenSet( XRM_TEXT_START , yytext );
+}
+
+"</h1>" {
+    WorkOnTokenSet( XRM_TEXT_END, yytext );
+}
+"<h2 "[^\>]*xml:lang[^\>]*\> {
+    WorkOnTokenSet( XRM_TEXT_START , yytext );
+}
+
+"</h2>" {
+    WorkOnTokenSet( XRM_TEXT_END, yytext );
+}
+"<h3 "[^\>]*xml:lang[^\>]*\> {
+    WorkOnTokenSet( XRM_TEXT_START , yytext );
+}
+
+"</h3>" {
+    WorkOnTokenSet( XRM_TEXT_END, yytext );
+}
+"<h4 "[^\>]*xml:lang[^\>]*\> {
+    WorkOnTokenSet( XRM_TEXT_START , yytext );
+}
+
+"</h4>" {
+    WorkOnTokenSet( XRM_TEXT_END, yytext );
+}
+"<h5 "[^\>]*xml:lang[^\>]*\> {
+    WorkOnTokenSet( XRM_TEXT_START , yytext );
+}
+
+"</h5>" {
+    WorkOnTokenSet( XRM_TEXT_END, yytext );
+}
+
+"<display-name>" {
+    WorkOnTokenSet( DESC_DISPLAY_NAME_START , yytext );
+}
+
+"</display-name>" {
+    WorkOnTokenSet( DESC_DISPLAY_NAME_END, yytext );
+}
+
+"<name "[^\>]*lang[^\>]*\> {
+    WorkOnTokenSet( DESC_TEXT_START , yytext );
+}
+
+"</name>" {
+    WorkOnTokenSet( DESC_TEXT_END, yytext );
+}
+
+"<extension-description>" {
+    WorkOnTokenSet( DESC_EXTENSION_DESCRIPTION_START , yytext );
+}
+
+"</extension-description>" {
+    WorkOnTokenSet( DESC_EXTENSION_DESCRIPTION_END , yytext );
+}
+
+"<src "[^\>]*lang[^\>]*\> {
+    WorkOnTokenSet( DESC_EXTENSION_DESCRIPTION_SRC , yytext );
+}
+
+
+
+"<!--"  {
+    int c1 = 0, c2 = 0;
+    int c3 = yyinput();
+    char pChar[2];
+    pChar[1] = 0x00;
+    pChar[0] = c3;
+
+    WorkOnTokenSet( COMMENT, yytext );
+    WorkOnTokenSet( COMMENT, pChar );
+
+    for(;;) {
+        if ( c3 == EOF )
+            break;
+        if ( c1 == '-' && c2 == '-' && c3 == '>' )
+            break;
+        c1 = c2;
+        c2 = c3;
+        c3 = yyinput();
+        pChar[0] = c3;
+        WorkOnTokenSet( COMMENT, pChar );
+    }
+}
+
+.|\n {
+    if ( bText == 1 )
+        WorkOnTokenSet( XML_TEXTCHAR, yytext );
+    else
+        WorkOnTokenSet( UNKNOWNCHAR, yytext );
+}
+
+
+%%
+
+/*****************************************************************************/
+int yywrap(void)
+/*****************************************************************************/
+{
+    return 1;
+}
+
+/*****************************************************************************/
+void yyerror ( const char *s )
+/*****************************************************************************/
+{
+    /* write error to stderr */
+    fprintf( stderr,
+        "Error: \"%s\" in line %d: \"%s\"\n", s, yylineno, yytext  );
+    SetError();
+}
+
+SAL_IMPLEMENT_MAIN_WITH_ARGS(argc, argv) {
+    /* error level */
+    int nRetValue = 0;
+    FILE *pFile;
+
+    if ( !GetOutputFile( argc, argv ) )
+    {
+        return 1;
+    }
+    pFile = GetXrmFile();
+    InitXrmExport( getFilename() );
+
+    if ( !pFile )
+        return 1;
+
+    yyin = pFile;
+
+    /* create global instance of class XmlExport */
+    //InitXrmExport( pOutput );
+
+    /* start parser */
+    yylex();
+
+    /* get error info. and end export */
+    nRetValue = GetError();
+    EndXrmExport();
+
+    /* return error level */
+    return nRetValue;
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab cinoptions=b1,g0,N-s cinkeys+=0=break: */
diff --git a/l10ntools/source/xrmmerge.cxx b/l10ntools/source/xrmmerge.cxx
new file mode 100644
index 000000000..b7a7e0042
--- /dev/null
+++ b/l10ntools/source/xrmmerge.cxx
@@ -0,0 +1,489 @@
+/* -*- 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 <sal/config.h>
+
+#include <stdio.h>
+
+#include <common.hxx>
+#include <export.hxx>
+#include <po.hxx>
+#include <xrmlex.hxx>
+#include <xrmmerge.hxx>
+#include <tokens.h>
+#include <helper.hxx>
+#include <iostream>
+#include <vector>
+#include <memory>
+
+// set of global variables
+static bool bMergeMode;
+static bool bDisplayName;
+static bool bExtensionDescription;
+static OString sLanguage;
+static OString sInputFileName;
+static OString sOutputFile;
+static OString sMergeSrc;
+static OString sLangAttribute;
+static OString sResourceType;
+static XRMResParser *pParser = nullptr;
+
+extern "C" {
+// the whole interface to lexer is in this extern "C" section
+
+extern bool GetOutputFile( int argc, char* argv[])
+{
+    bDisplayName = false;
+    bExtensionDescription = false;
+
+    common::HandledArgs aArgs;
+    if ( common::handleArguments(argc, argv, aArgs) )
+    {
+        bMergeMode = aArgs.m_bMergeMode;
+        sLanguage = aArgs.m_sLanguage;
+        sInputFileName = aArgs.m_sInputFile;
+        sOutputFile = aArgs.m_sOutputFile;
+        sMergeSrc = aArgs.m_sMergeSrc;
+        return true;
+    }
+    else
+    {
+        // command line is not valid
+        common::writeUsage("xrmex","*.xrm/*.xml");
+        return false;
+    }
+}
+
+int InitXrmExport( const char* pFilename)
+{
+    // instantiate Export
+    OString sFilename( pFilename );
+
+    if ( bMergeMode )
+        pParser = new XRMResMerge( sMergeSrc, sOutputFile, sFilename );
+    else if (!sOutputFile.isEmpty())
+        pParser = new XRMResExport( sOutputFile, sInputFileName );
+
+    return 1;
+}
+
+int EndXrmExport()
+{
+    delete pParser;
+    return 1;
+}
+extern const char* getFilename()
+{
+    return sInputFileName.getStr();
+}
+
+extern FILE *GetXrmFile()
+{
+    // look for valid filename
+    if (!sInputFileName.isEmpty()) {
+        //TODO: explicit BOM handling?
+        FILE * pFile = fopen(sInputFileName.getStr(), "r");
+        if ( !pFile ){
+            fprintf( stderr, "Error: Could not open file %s\n",
+                sInputFileName.getStr());
+        }
+        else {
+            return pFile;
+        }
+    }
+    // this means the file could not be opened
+    return nullptr;
+}
+
+int WorkOnTokenSet( int nTyp, char *pTokenText )
+{
+    //printf("Typ = %d , text = '%s'\n",nTyp , pTokenText );
+    pParser->Execute( nTyp, pTokenText );
+
+    return 1;
+}
+
+int SetError()
+{
+    pParser->SetError();
+    return 1;
+}
+}
+
+extern "C" {
+
+int GetError()
+{
+    return pParser->GetError();
+}
+}
+
+
+
+
+XRMResParser::XRMResParser()
+    : bError( false ),
+    bText( false )
+{
+}
+
+XRMResParser::~XRMResParser()
+{
+}
+
+void XRMResParser::Execute( int nToken, char * pToken )
+{
+    OString rToken( pToken );
+
+    switch ( nToken ) {
+        case XRM_TEXT_START:{
+                OString sNewGID = GetAttribute( rToken, "id" );
+                if ( sNewGID != sGID ) {
+                    sGID = sNewGID;
+                }
+                bText = true;
+                sCurrentText = OString();
+                sCurrentOpenTag = rToken;
+                Output( rToken );
+            }
+        break;
+
+        case XRM_TEXT_END: {
+                sCurrentCloseTag = rToken;
+                sResourceType = OString ( "readmeitem" );
+                sLangAttribute = OString ( "xml:lang" );
+                WorkOnText( sCurrentOpenTag, sCurrentText );
+                Output( sCurrentText );
+                EndOfText( sCurrentOpenTag, sCurrentCloseTag );
+                bText = false;
+                rToken = OString();
+                sCurrentText  = OString();
+        }
+        break;
+
+        case DESC_DISPLAY_NAME_START:{
+                bDisplayName = true;
+            }
+        break;
+
+        case DESC_DISPLAY_NAME_END:{
+                bDisplayName = false;
+            }
+        break;
+
+        case DESC_TEXT_START:{
+                if (bDisplayName) {
+                    sGID = OString("dispname");
+                    bText = true;
+                    sCurrentText = OString();
+                    sCurrentOpenTag = rToken;
+                    Output( rToken );
+                }
+            }
+        break;
+
+        case DESC_TEXT_END: {
+                if (bDisplayName) {
+                    sCurrentCloseTag = rToken;
+                    sResourceType = OString ( "description" );
+                    sLangAttribute = OString ( "lang" );
+                    WorkOnText( sCurrentOpenTag, sCurrentText );
+                    Output( sCurrentText );
+                    EndOfText( sCurrentOpenTag, sCurrentCloseTag );
+                    bText = false;
+                    rToken = OString();
+                    sCurrentText  = OString();
+                }
+        }
+        break;
+
+        case DESC_EXTENSION_DESCRIPTION_START: {
+                bExtensionDescription = true;
+            }
+        break;
+
+        case DESC_EXTENSION_DESCRIPTION_END: {
+                bExtensionDescription = false;
+            }
+        break;
+
+        case DESC_EXTENSION_DESCRIPTION_SRC: {
+                if (bExtensionDescription) {
+                    sGID = OString("extdesc");
+                    sResourceType = OString ( "description" );
+                    sLangAttribute = OString ( "lang" );
+                    sCurrentOpenTag = rToken;
+                    sCurrentText  = OString();
+                    Output( rToken );
+                    WorkOnDesc( sCurrentOpenTag, sCurrentText );
+                    sCurrentCloseTag = rToken;
+                    Output( sCurrentText );
+                    rToken = OString();
+                    sCurrentText  = OString();
+                }
+            }
+        break;
+
+        default:
+            if ( bText ) {
+                sCurrentText += rToken;
+            }
+        break;
+    }
+
+    if ( !bText )
+    {
+        Output( rToken );
+    }
+}
+
+OString XRMResParser::GetAttribute( const OString &rToken, std::string_view rAttribute )
+{
+    const OString sSearch{ OString::Concat(" ") + rAttribute + "=" };
+    OString sTmp{ rToken.replace('\t', ' ') };
+    sal_Int32 nPos = sTmp.indexOf( sSearch );
+
+    if ( nPos<0 )
+        return OString();
+
+    return sTmp.getToken(1, '"', nPos);
+}
+
+
+void XRMResParser::Error( const OString &rError )
+{
+    yyerror(rError.getStr());
+}
+
+
+
+
+XRMResExport::XRMResExport(
+    const OString &rOutputFile, const OString &rFilePath )
+                : sPath( rFilePath )
+{
+    pOutputStream.open( rOutputFile, PoOfstream::APP );
+    if (!pOutputStream.isOpen())
+    {
+        Error( "Unable to open output file: " + rOutputFile );
+    }
+}
+
+XRMResExport::~XRMResExport()
+{
+    pOutputStream.close();
+}
+
+void XRMResExport::Output( const OString& ) {}
+
+void XRMResExport::WorkOnDesc(
+    const OString &rOpenTag,
+    OString &rText )
+{
+    const OString sDescFileName{ sInputFileName.replaceAll("description.xml", OString())
+        + GetAttribute( rOpenTag, "xlink:href" ) };
+    std::ifstream file (sDescFileName.getStr(), std::ios::in|std::ios::binary|std::ios::ate);
+    if (file.is_open()) {
+        int size = static_cast<int>(file.tellg());
+        std::unique_ptr<char[]> memblock(new char [size+1]);
+        file.seekg (0, std::ios::beg);
+        file.read (memblock.get(), size);
+        file.close();
+        memblock[size] = '\0';
+        rText = OString(memblock.get());
+    }
+    WorkOnText( rOpenTag, rText );
+    EndOfText( rOpenTag, rOpenTag );
+}
+
+void XRMResExport::WorkOnText(
+    const OString &rOpenTag,
+    OString &rText )
+{
+    OString sLang( GetAttribute( rOpenTag, sLangAttribute ));
+
+    if ( !pResData )
+    {
+        pResData.reset( new ResData( GetGID() ) );
+    }
+    pResData->sText[sLang] = rText;
+}
+
+void XRMResExport::EndOfText(
+    const OString &,
+    const OString & )
+{
+    if ( pResData )
+    {
+        OString sAct = pResData->sText["en-US"];
+
+        if( !sAct.isEmpty() )
+            common::writePoEntry(
+                "Xrmex", pOutputStream, sPath, sResourceType,
+                pResData->sGId, OString(), OString(), sAct );
+    }
+    pResData.reset();
+}
+
+
+
+
+XRMResMerge::XRMResMerge(
+    const OString &rMergeSource, const OString &rOutputFile,
+    const OString &rFilename )
+                : sFilename( rFilename )
+{
+    if (!rMergeSource.isEmpty() && sLanguage.equalsIgnoreAsciiCase("ALL"))
+    {
+        pMergeDataFile.reset(new MergeDataFile(
+            rMergeSource, sInputFileName, false));
+        aLanguages = pMergeDataFile->GetLanguages();
+    }
+    else
+        aLanguages.push_back( sLanguage );
+    pOutputStream.open(
+        rOutputFile.getStr(), std::ios_base::out | std::ios_base::trunc);
+    if (!pOutputStream.is_open()) {
+        Error( "Unable to open output file: " + rOutputFile );
+    }
+}
+
+XRMResMerge::~XRMResMerge()
+{
+    pOutputStream.close();
+}
+
+void XRMResMerge::WorkOnDesc(
+    const OString &rOpenTag,
+    OString &rText )
+{
+    WorkOnText( rOpenTag, rText);
+    if ( pMergeDataFile && pResData ) {
+        MergeEntrys *pEntrys = pMergeDataFile->GetMergeEntrys( pResData.get() );
+        if ( pEntrys ) {
+            OString sCur;
+            OString sDescFilename = GetAttribute ( rOpenTag, "xlink:href" );
+            for( size_t n = 0; n < aLanguages.size(); n++ ){
+                sCur = aLanguages[ n ];
+                OString sText;
+                if ( !sCur.equalsIgnoreAsciiCase("en-US")  &&
+                    ( pEntrys->GetText( sText, sCur, true )) &&
+                    !sText.isEmpty())
+                {
+                    OString sAdditionalLine{ "\n        "  + rOpenTag };
+                    OString sSearch{ sLangAttribute + "=\"" };
+                    OString sReplace( sSearch );
+
+                    sSearch += GetAttribute( rOpenTag, sLangAttribute );
+                    sReplace += sCur;
+                    sAdditionalLine = sAdditionalLine.replaceFirst(
+                        sSearch, sReplace);
+
+                    sSearch = OString("xlink:href=\"");
+                    sReplace = sSearch;
+
+                    const OString sLocDescFilename = sDescFilename.replaceFirst( "en-US", sCur);
+
+                    sSearch += sDescFilename;
+                    sReplace += sLocDescFilename;
+                    sAdditionalLine = sAdditionalLine.replaceFirst(
+                        sSearch, sReplace);
+
+                    Output( sAdditionalLine );
+
+                    sal_Int32 i = sOutputFile.lastIndexOf('/');
+                    if (i == -1) {
+                        std::cerr
+                            << "Error: output file " << sOutputFile
+                            << " does not contain any /\n";
+                        throw false; //TODO
+                    }
+                    OString sOutputDescFile(
+                        sOutputFile.subView(0, i + 1) + sLocDescFilename);
+                    std::ofstream file(sOutputDescFile.getStr());
+                    if (file.is_open()) {
+                        file << sText;
+                        file.close();
+                    } else {
+                        std::cerr
+                            << "Error: cannot write "
+                            << sOutputDescFile << '\n';
+                        throw false; //TODO
+                    }
+                }
+            }
+        }
+    }
+    pResData.reset();
+}
+
+void XRMResMerge::WorkOnText(
+    const OString &,
+    OString & )
+{
+    if ( pMergeDataFile && !pResData ) {
+        pResData.reset( new ResData( GetGID(), sFilename ) );
+        pResData->sResTyp = sResourceType;
+    }
+}
+
+void XRMResMerge::Output( const OString& rOutput )
+{
+    if (!rOutput.isEmpty())
+        pOutputStream << rOutput;
+}
+
+void XRMResMerge::EndOfText(
+    const OString &rOpenTag,
+    const OString &rCloseTag )
+{
+
+    Output( rCloseTag );
+    if ( pMergeDataFile && pResData ) {
+        MergeEntrys *pEntrys = pMergeDataFile->GetMergeEntrys( pResData.get() );
+        if ( pEntrys ) {
+            OString sCur;
+            for( size_t n = 0; n < aLanguages.size(); n++ ){
+                sCur = aLanguages[ n ];
+                OString sContent;
+                if (!sCur.equalsIgnoreAsciiCase("en-US") &&
+                    ( pEntrys->GetText( sContent, sCur, true )) &&
+                    !sContent.isEmpty() &&
+                    helper::isWellFormedXML( sContent ))
+                {
+                    const OString& sText( sContent );
+                    OString sAdditionalLine{ "\n        " + rOpenTag };
+                    OString sSearch{ sLangAttribute + "=\"" };
+                    OString sReplace( sSearch );
+
+                    sSearch += GetAttribute( rOpenTag, sLangAttribute );
+                    sReplace += sCur;
+
+                    sAdditionalLine = sAdditionalLine.replaceFirst(
+                        sSearch, sReplace) + sText + rCloseTag;
+
+                    Output( sAdditionalLine );
+                }
+            }
+        }
+    }
+    pResData.reset();
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
author	Daniel Baumann <daniel.baumann@progress-linux.org>	2024-04-07 09:06:44 +0000
committer	Daniel Baumann <daniel.baumann@progress-linux.org>	2024-04-07 09:06:44 +0000
commit	ed5640d8b587fbcfed7dd7967f3de04b37a76f26 (patch)
tree	7a5f7c6c9d02226d7471cb3cc8fbbf631b415303 /l10ntools
parent	Initial commit. (diff)
download	libreoffice-ed5640d8b587fbcfed7dd7967f3de04b37a76f26.tar.xz libreoffice-ed5640d8b587fbcfed7dd7967f3de04b37a76f26.zip