Adding upstream version 4:24.2.0.upstream/4%24.2.0

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

43 files changed, 6000 insertions, 0 deletions

diff --git a/lingucomponent/IwyuFilter_lingucomponent.yaml b/lingucomponent/IwyuFilter_lingucomponent.yaml
new file mode 100644
index 0000000000..ebea8246cc
--- /dev/null
+++ b/lingucomponent/IwyuFilter_lingucomponent.yaml
@@ -0,0 +1,20 @@
+---
+assumeFilename: lingucomponent/source/spellcheck/spell/sspellimp.cxx
+excludelist:
+    lingucomponent/source/lingutil/lingutil.hxx:
+    # Needed on WIN
+    - rtl/string.hxx
+    lingucomponent/source/languageguessing/guesslang.cxx:
+    # Needed for code protected by EXTTEXTCAT_VERSION_MAJOR
+    - libexttextcat/textcat.h
+    - tools/debug.hxx
+    - sal/macros.h
+    lingucomponent/source/numbertext/numbertext.cxx:
+    # Needed on WIN
+    - o3tl/char16_t2wchar_t.hxx
+    lingucomponent/source/spellcheck/spell/sspellimp.cxx:
+    # Needed for SpellFailure::SPELLING_ERROR
+    - com/sun/star/linguistic2/SpellFailure.hpp
+    lingucomponent/source/hyphenator/hyphen/hyphenimp.cxx:
+    # Actually used
+    - com/sun/star/linguistic2/XLinguProperties.hpp
diff --git a/lingucomponent/Library_LanguageTool.mk b/lingucomponent/Library_LanguageTool.mk
new file mode 100644
index 0000000000..91907fe2b5
--- /dev/null
+++ b/lingucomponent/Library_LanguageTool.mk
@@ -0,0 +1,52 @@
+# -*- 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 $(call gb_Library_Library,LanguageTool))
+
+$(eval $(call gb_Library_set_componentfile,LanguageTool,lingucomponent/source/spellcheck/languagetool/LanguageTool,services))
+
+$(eval $(call gb_Library_set_include,LanguageTool,\
+	$$(INCLUDE) \
+	-I$(SRCDIR)/lingucomponent/source/lingutil \
+))
+
+$(eval $(call gb_Library_use_sdk_api,LanguageTool))
+
+$(eval $(call gb_Library_use_libraries,LanguageTool,\
+	comphelper \
+	cppu \
+	cppuhelper \
+	i18nlangtag \
+	svt \
+	lng \
+	sal \
+	tl \
+	utl \
+))
+
+$(eval $(call gb_Library_use_static_libraries,LanguageTool,\
+	ulingu \
+))
+
+$(eval $(call gb_Library_use_externals,LanguageTool,\
+	boost_headers \
+	icuuc \
+	curl \
+))
+
+$(eval $(call gb_Library_use_custom_headers,LanguageTool,\
+	officecfg/registry \
+))
+
+$(eval $(call gb_Library_add_exception_objects,LanguageTool,\
+	lingucomponent/source/spellcheck/languagetool/languagetoolimp \
+))
+
+# vim: set noet sw=4 ts=4:
diff --git a/lingucomponent/Library_MacOSXSpell.mk b/lingucomponent/Library_MacOSXSpell.mk
new file mode 100644
index 0000000000..df77686d1c
--- /dev/null
+++ b/lingucomponent/Library_MacOSXSpell.mk
@@ -0,0 +1,47 @@
+# -*- Mode: makefile-gmake; tab-width: 4; indent-tabs-mode: t -*-
+#
+#
+# This file is part of the LibreOffice project.
+#
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+#
+
+$(eval $(call gb_Library_Library,MacOSXSpell))
+
+$(eval $(call gb_Library_set_componentfile,MacOSXSpell,lingucomponent/source/spellcheck/macosxspell/MacOSXSpell,services))
+
+$(eval $(call gb_Library_set_include,MacOSXSpell,\
+	$$(INCLUDE) \
+	-I$(SRCDIR)/lingucomponent/source/lingutil \
+))
+
+$(eval $(call gb_Library_use_sdk_api,MacOSXSpell))
+
+$(eval $(call gb_Library_use_libraries,MacOSXSpell,\
+	comphelper \
+	cppu \
+	cppuhelper \
+	lng \
+	sal \
+	i18nlangtag \
+	svl \
+	tl \
+	ucbhelper \
+	utl \
+))
+
+$(eval $(call gb_Library_use_system_darwin_frameworks,MacOSXSpell,\
+	Cocoa \
+))
+
+$(eval $(call gb_Library_use_externals,MacOSXSpell,\
+	boost_headers \
+))
+
+$(eval $(call gb_Library_add_objcxxobjects,MacOSXSpell,\
+	lingucomponent/source/spellcheck/macosxspell/macspellimp \
+))
+
+# vim: set noet sw=4 ts=4:
diff --git a/lingucomponent/Library_guesslang.mk b/lingucomponent/Library_guesslang.mk
new file mode 100644
index 0000000000..a700ed545b
--- /dev/null
+++ b/lingucomponent/Library_guesslang.mk
@@ -0,0 +1,41 @@
+# -*- Mode: makefile-gmake; tab-width: 4; indent-tabs-mode: t -*-
+#
+#
+# This file is part of the LibreOffice project.
+#
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+#
+
+$(eval $(call gb_Library_Library,guesslang))
+
+$(eval $(call gb_Library_set_componentfile,guesslang,lingucomponent/source/languageguessing/guesslang,services))
+
+ifneq ($(ENABLE_WASM_STRIP_GUESSLANG),TRUE)
+$(eval $(call gb_Library_use_externals,guesslang,\
+	libexttextcat \
+))
+endif
+
+$(eval $(call gb_Library_use_externals,guesslang,\
+	boost_headers \
+))
+
+$(eval $(call gb_Library_use_sdk_api,guesslang))
+
+$(eval $(call gb_Library_use_libraries,guesslang,\
+	cppu \
+	cppuhelper \
+	sal \
+	tl \
+	utl \
+))
+
+$(eval $(call gb_Library_add_exception_objects,guesslang,\
+	lingucomponent/source/languageguessing/guess \
+	lingucomponent/source/languageguessing/guesslang \
+	lingucomponent/source/languageguessing/simpleguesser \
+))
+
+# vim: set noet sw=4 ts=4:
diff --git a/lingucomponent/Library_hyphen.mk b/lingucomponent/Library_hyphen.mk
new file mode 100644
index 0000000000..dd172e080e
--- /dev/null
+++ b/lingucomponent/Library_hyphen.mk
@@ -0,0 +1,47 @@
+# -*- Mode: makefile-gmake; tab-width: 4; indent-tabs-mode: t -*-
+#
+#
+# This file is part of the LibreOffice project.
+#
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+#
+
+$(eval $(call gb_Library_Library,hyphen))
+
+$(eval $(call gb_Library_set_componentfile,hyphen,lingucomponent/source/hyphenator/hyphen/hyphen,services))
+
+$(eval $(call gb_Library_set_include,hyphen,\
+	$$(INCLUDE) \
+	-I$(SRCDIR)/lingucomponent/source/lingutil \
+))
+
+$(eval $(call gb_Library_use_sdk_api,hyphen))
+
+$(eval $(call gb_Library_use_libraries,hyphen,\
+	comphelper \
+	cppu \
+	cppuhelper \
+	i18nlangtag \
+	lng \
+	sal \
+	tl \
+	utl \
+))
+
+$(eval $(call gb_Library_use_static_libraries,hyphen,\
+	ulingu \
+))
+
+$(eval $(call gb_Library_use_externals,hyphen,\
+	boost_headers \
+	hunspell \
+	hyphen \
+))
+
+$(eval $(call gb_Library_add_exception_objects,hyphen,\
+	lingucomponent/source/hyphenator/hyphen/hyphenimp \
+))
+
+# vim: set noet sw=4 ts=4:
diff --git a/lingucomponent/Library_lnth.mk b/lingucomponent/Library_lnth.mk
new file mode 100644
index 0000000000..00d16790e2
--- /dev/null
+++ b/lingucomponent/Library_lnth.mk
@@ -0,0 +1,48 @@
+# -*- Mode: makefile-gmake; tab-width: 4; indent-tabs-mode: t -*-
+#
+#
+# This file is part of the LibreOffice project.
+#
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+#
+
+$(eval $(call gb_Library_Library,lnth))
+
+$(eval $(call gb_Library_set_componentfile,lnth,lingucomponent/source/thesaurus/libnth/lnth,services))
+
+$(eval $(call gb_Library_set_include,lnth,\
+	$$(INCLUDE) \
+	-I$(SRCDIR)/lingucomponent/source/lingutil \
+))
+
+$(eval $(call gb_Library_use_sdk_api,lnth))
+
+$(eval $(call gb_Library_use_libraries,lnth,\
+	comphelper \
+	cppu \
+	cppuhelper \
+	i18nlangtag \
+	lng \
+	sal \
+	tl \
+	utl \
+))
+
+$(eval $(call gb_Library_use_static_libraries,lnth,\
+	ulingu \
+))
+
+$(eval $(call gb_Library_use_externals,lnth,\
+	boost_headers \
+	hunspell \
+	mythes \
+))
+
+$(eval $(call gb_Library_add_exception_objects,lnth,\
+	lingucomponent/source/thesaurus/libnth/nthesdta \
+	lingucomponent/source/thesaurus/libnth/nthesimp \
+))
+
+# vim: set noet sw=4 ts=4:
diff --git a/lingucomponent/Library_numbertext.mk b/lingucomponent/Library_numbertext.mk
new file mode 100644
index 0000000000..6cb6ba10a5
--- /dev/null
+++ b/lingucomponent/Library_numbertext.mk
@@ -0,0 +1,34 @@
+# -*- Mode: makefile-gmake; tab-width: 4; indent-tabs-mode: t -*-
+#
+#
+# This file is part of the LibreOffice project.
+#
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+#
+
+$(eval $(call gb_Library_Library,numbertext))
+
+$(eval $(call gb_Library_set_componentfile,numbertext,lingucomponent/source/numbertext/numbertext,services))
+
+$(eval $(call gb_Library_use_externals,numbertext,\
+	libnumbertext \
+))
+
+$(eval $(call gb_Library_use_sdk_api,numbertext))
+
+$(eval $(call gb_Library_use_libraries,numbertext,\
+	cppu \
+	cppuhelper \
+	i18nlangtag \
+	sal \
+	tl \
+	utl \
+))
+
+$(eval $(call gb_Library_add_exception_objects,numbertext,\
+	lingucomponent/source/numbertext/numbertext \
+))
+
+# vim: set noet sw=4 ts=4:
diff --git a/lingucomponent/Library_spell.mk b/lingucomponent/Library_spell.mk
new file mode 100644
index 0000000000..c00ea8d906
--- /dev/null
+++ b/lingucomponent/Library_spell.mk
@@ -0,0 +1,47 @@
+# -*- Mode: makefile-gmake; tab-width: 4; indent-tabs-mode: t -*-
+#
+#
+# This file is part of the LibreOffice project.
+#
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+#
+
+$(eval $(call gb_Library_Library,spell))
+
+$(eval $(call gb_Library_set_componentfile,spell,lingucomponent/source/spellcheck/spell/spell,services))
+
+$(eval $(call gb_Library_set_include,spell,\
+	$$(INCLUDE) \
+	-I$(SRCDIR)/lingucomponent/source/lingutil \
+))
+
+$(eval $(call gb_Library_use_sdk_api,spell))
+
+$(eval $(call gb_Library_use_libraries,spell,\
+	comphelper \
+	cppu \
+	cppuhelper \
+	i18nlangtag \
+	lng \
+	sal \
+	tl \
+	utl \
+))
+
+$(eval $(call gb_Library_use_static_libraries,spell,\
+	ulingu \
+))
+
+$(eval $(call gb_Library_use_externals,spell,\
+	boost_headers \
+	hunspell \
+	icuuc \
+))
+
+$(eval $(call gb_Library_add_exception_objects,spell,\
+	lingucomponent/source/spellcheck/spell/sspellimp \
+))
+
+# vim: set noet sw=4 ts=4:
diff --git a/lingucomponent/Makefile b/lingucomponent/Makefile
new file mode 100644
index 0000000000..0997e62848
--- /dev/null
+++ b/lingucomponent/Makefile
@@ -0,0 +1,14 @@
+# -*- Mode: makefile-gmake; tab-width: 4; indent-tabs-mode: t -*-
+#
+# This file is part of the LibreOffice project.
+#
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+#
+
+module_directory:=$(dir $(realpath $(firstword $(MAKEFILE_LIST))))
+
+include $(module_directory)/../solenv/gbuild/partial_build.mk
+
+# vim: set noet sw=4 ts=4:
diff --git a/lingucomponent/Module_lingucomponent.mk b/lingucomponent/Module_lingucomponent.mk
new file mode 100644
index 0000000000..ea31defcf5
--- /dev/null
+++ b/lingucomponent/Module_lingucomponent.mk
@@ -0,0 +1,41 @@
+# -*- Mode: makefile-gmake; tab-width: 4; indent-tabs-mode: t -*-
+#
+#
+# This file is part of the LibreOffice project.
+#
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+#
+
+$(eval $(call gb_Module_Module,lingucomponent))
+
+ifneq ($(ENABLE_WASM_STRIP_GUESSLANG),TRUE)
+$(eval $(call gb_Module_add_targets,lingucomponent,\
+	Library_guesslang \
+))
+endif
+
+ifneq ($(ENABLE_WASM_STRIP_HUNSPELL),TRUE)
+$(eval $(call gb_Module_add_targets,lingucomponent,\
+	Library_hyphen \
+	Library_lnth \
+	Library_spell \
+	StaticLibrary_ulingu \
+))
+endif
+
+ifeq ($(ENABLE_CURL),TRUE)
+ifneq ($(ENABLE_WASM_STRIP_LANGUAGETOOL),TRUE)
+$(eval $(call gb_Module_add_targets,lingucomponent,\
+	Library_LanguageTool \
+))
+endif
+endif
+
+$(eval $(call gb_Module_add_targets,lingucomponent,\
+	$(if $(filter iOS MACOSX,$(OS)),Library_MacOSXSpell) \
+	Library_numbertext \
+))
+
+# vim: set noet sw=4 ts=4:
diff --git a/lingucomponent/README.md b/lingucomponent/README.md
new file mode 100644
index 0000000000..6db4086ac7
--- /dev/null
+++ b/lingucomponent/README.md
@@ -0,0 +1,3 @@
+# Linguistics Components
+
+`lingucomponent` contains spellcheck, hyphenator, thesaurus, etc.
diff --git a/lingucomponent/StaticLibrary_ulingu.mk b/lingucomponent/StaticLibrary_ulingu.mk
new file mode 100644
index 0000000000..1bee43eeb1
--- /dev/null
+++ b/lingucomponent/StaticLibrary_ulingu.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 $(call gb_StaticLibrary_StaticLibrary,ulingu))
+
+$(eval $(call gb_StaticLibrary_use_api,ulingu,\
+	udkapi \
+	offapi \
+))
+
+ifneq ($(SYSTEM_DICTS),)
+$(eval $(call gb_StaticLibrary_add_defs,ulingu,\
+	-DSYSTEM_DICTS -DDICT_SYSTEM_DIR=\"$(DICT_SYSTEM_DIR)\" -DHYPH_SYSTEM_DIR=\"$(HYPH_SYSTEM_DIR)\" -DTHES_SYSTEM_DIR=\"$(THES_SYSTEM_DIR)\" \
+))
+
+endif
+
+$(eval $(call gb_StaticLibrary_use_externals,ulingu,\
+	boost_headers \
+	hunspell \
+))
+
+$(eval $(call gb_StaticLibrary_add_exception_objects,ulingu,\
+	lingucomponent/source/lingutil/lingutil \
+))
+
+# vim: set noet sw=4 ts=4:
diff --git a/lingucomponent/config/Linguistic-lingucomponent-grammarchecker.xcu b/lingucomponent/config/Linguistic-lingucomponent-grammarchecker.xcu
new file mode 100644
index 0000000000..6fa455d969
--- /dev/null
+++ b/lingucomponent/config/Linguistic-lingucomponent-grammarchecker.xcu
@@ -0,0 +1,30 @@
+<?xml version='1.0' encoding='UTF-8'?>
+<!--
+ * 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 .
+-->
+<oor:component-data oor:name="Linguistic" oor:package="org.openoffice.Office" xmlns:install="http://openoffice.org/2004/installation" xmlns:oor="http://openoffice.org/2001/registry" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
+    <node oor:name="ServiceManager">
+        <node oor:name="GrammarCheckers">
+            <node oor:name="org.openoffice.lingu.LanguageToolGrammarChecker" oor:op="fuse">
+                <prop oor:name="Locales" oor:type="oor:string-list">
+                    <value>ar ast-ES be-BY br-FR ca-ES ca-ES-valencia zh-CN da-DK nl nl-BE en en-AU en-CA en-GB en-NZ en-ZA en-US fr gl-ES de de-AT de-DE de-CH el-GR ga-IE it ja-JP km-KH nb no fa pl-PL pt pt-AO pt-BR pt-MZ pt-PT ro-RO ru-RU de-DE-x-simple-language sk-SK sl-SI es es-AR sv tl-PH ta-IN uk-UA</value>
+                </prop>
+            </node>
+        </node>
+    </node>
+</oor:component-data>
+
diff --git a/lingucomponent/config/Linguistic-lingucomponent-hyphenator.xcu b/lingucomponent/config/Linguistic-lingucomponent-hyphenator.xcu
new file mode 100644
index 0000000000..c42f16313e
--- /dev/null
+++ b/lingucomponent/config/Linguistic-lingucomponent-hyphenator.xcu
@@ -0,0 +1,30 @@
+<?xml version='1.0' encoding='UTF-8'?>
+<!--
+ * 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 .
+-->
+<oor:component-data oor:name="Linguistic" oor:package="org.openoffice.Office" xmlns:install="http://openoffice.org/2004/installation" xmlns:oor="http://openoffice.org/2001/registry" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
+    <node oor:name="ServiceManager">
+        <node oor:name="Hyphenators">
+            <node oor:name="org.openoffice.lingu.LibHnjHyphenator" oor:op="fuse">
+                <prop oor:name="SupportedDictionaryFormats" oor:type="oor:string-list">
+                    <value>DICT_HYPH</value>
+                </prop>
+            </node>
+        </node>
+    </node>
+</oor:component-data>
+
diff --git a/lingucomponent/config/Linguistic-lingucomponent-spellchecker.xcu b/lingucomponent/config/Linguistic-lingucomponent-spellchecker.xcu
new file mode 100644
index 0000000000..8f35b44e5f
--- /dev/null
+++ b/lingucomponent/config/Linguistic-lingucomponent-spellchecker.xcu
@@ -0,0 +1,30 @@
+<?xml version='1.0' encoding='UTF-8'?>
+<!--
+ * 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 .
+-->
+<oor:component-data oor:name="Linguistic" oor:package="org.openoffice.Office" xmlns:install="http://openoffice.org/2004/installation" xmlns:oor="http://openoffice.org/2001/registry" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
+    <node oor:name="ServiceManager">
+        <node oor:name="SpellCheckers">
+            <node oor:name="org.openoffice.lingu.MySpellSpellChecker" oor:op="fuse">
+                <prop oor:name="SupportedDictionaryFormats" oor:type="oor:string-list">
+                    <value>DICT_SPELL</value>
+                </prop>
+            </node>
+        </node>
+    </node>
+</oor:component-data>
+
diff --git a/lingucomponent/config/Linguistic-lingucomponent-thesaurus.xcu b/lingucomponent/config/Linguistic-lingucomponent-thesaurus.xcu
new file mode 100644
index 0000000000..e228e65561
--- /dev/null
+++ b/lingucomponent/config/Linguistic-lingucomponent-thesaurus.xcu
@@ -0,0 +1,30 @@
+<?xml version='1.0' encoding='UTF-8'?>
+<!--
+ * 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 .
+-->
+<oor:component-data oor:name="Linguistic" oor:package="org.openoffice.Office" xmlns:install="http://openoffice.org/2004/installation" xmlns:oor="http://openoffice.org/2001/registry" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
+    <node oor:name="ServiceManager">
+        <node oor:name="Thesauri">
+            <node oor:name="org.openoffice.lingu.new.Thesaurus" oor:op="fuse">
+                <prop oor:name="SupportedDictionaryFormats" oor:type="oor:string-list">
+                    <value>DICT_THES</value>
+                </prop>
+            </node>
+        </node>
+    </node>
+</oor:component-data>
+
diff --git a/lingucomponent/source/hyphenator/hyphen/hyphen.component b/lingucomponent/source/hyphenator/hyphen/hyphen.component
new file mode 100644
index 0000000000..b9bc8b1f36
--- /dev/null
+++ b/lingucomponent/source/hyphenator/hyphen/hyphen.component
@@ -0,0 +1,26 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+ * 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 .
+ -->
+
+<component loader="com.sun.star.loader.SharedLibrary" environment="@CPPU_ENV@"
+    xmlns="http://openoffice.org/2010/uno-components">
+  <implementation name="org.openoffice.lingu.LibHnjHyphenator"
+    constructor="lingucomponent_Hyphenator_get_implementation" single-instance="true">
+    <service name="com.sun.star.linguistic2.Hyphenator"/>
+  </implementation>
+</component>
diff --git a/lingucomponent/source/hyphenator/hyphen/hyphenimp.cxx b/lingucomponent/source/hyphenator/hyphen/hyphenimp.cxx
new file mode 100644
index 0000000000..8ac156ef8c
--- /dev/null
+++ b/lingucomponent/source/hyphenator/hyphen/hyphenimp.cxx
@@ -0,0 +1,805 @@
+/* -*- 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 <com/sun/star/uno/Reference.h>
+
+#include <comphelper/sequence.hxx>
+#include <cppuhelper/factory.hxx>
+#include <cppuhelper/supportsservice.hxx>
+#include <cppuhelper/weak.hxx>
+#include <com/sun/star/linguistic2/XLinguProperties.hpp>
+#include <i18nlangtag/languagetag.hxx>
+#include <tools/debug.hxx>
+#include <osl/mutex.hxx>
+#include <osl/thread.h>
+
+#include <hyphen.h>
+#include "hyphenimp.hxx"
+
+#include <linguistic/hyphdta.hxx>
+#include <rtl/ustring.hxx>
+#include <rtl/ustrbuf.hxx>
+#include <rtl/textenc.h>
+#include <sal/log.hxx>
+
+#include <linguistic/misc.hxx>
+#include <svtools/strings.hrc>
+#include <unotools/charclass.hxx>
+#include <unotools/lingucfg.hxx>
+#include <unotools/resmgr.hxx>
+#include <osl/file.hxx>
+
+#include <stdio.h>
+#include <string.h>
+
+#include <cassert>
+#include <numeric>
+#include <vector>
+#include <set>
+#include <memory>
+
+using namespace utl;
+using namespace osl;
+using namespace com::sun::star;
+using namespace com::sun::star::beans;
+using namespace com::sun::star::lang;
+using namespace com::sun::star::uno;
+using namespace com::sun::star::linguistic2;
+using namespace linguistic;
+
+Hyphenator::Hyphenator() :
+    aEvtListeners   ( GetLinguMutex() )
+{
+    bDisposing = false;
+}
+
+Hyphenator::~Hyphenator()
+{
+    for (auto & rInfo : mvDicts)
+    {
+        if (rInfo.aPtr)
+            hnj_hyphen_free(rInfo.aPtr);
+    }
+
+    if (pPropHelper)
+    {
+        pPropHelper->RemoveAsPropListener();
+    }
+}
+
+PropertyHelper_Hyphenation& Hyphenator::GetPropHelper_Impl()
+{
+    if (!pPropHelper)
+    {
+        Reference< XLinguProperties >   xPropSet = GetLinguProperties();
+
+        pPropHelper.reset( new PropertyHelper_Hyphenation (static_cast<XHyphenator *>(this), xPropSet ) );
+        pPropHelper->AddAsPropListener();   //! after a reference is established
+    }
+    return *pPropHelper;
+}
+
+Sequence< Locale > SAL_CALL Hyphenator::getLocales()
+{
+    MutexGuard  aGuard( GetLinguMutex() );
+
+    // this routine should return the locales supported by the installed
+    // dictionaries.
+    if (mvDicts.empty())
+    {
+        SvtLinguConfig aLinguCfg;
+
+        // get list of dictionaries-to-use
+        // (or better speaking: the list of dictionaries using the
+        // new configuration entries).
+        std::vector< SvtLinguConfigDictionaryEntry > aDics;
+        uno::Sequence< OUString > aFormatList;
+        aLinguCfg.GetSupportedDictionaryFormatsFor( "Hyphenators",
+                "org.openoffice.lingu.LibHnjHyphenator", aFormatList );
+        for (const auto& rFormat : std::as_const(aFormatList))
+        {
+            std::vector< SvtLinguConfigDictionaryEntry > aTmpDic(
+                    aLinguCfg.GetActiveDictionariesByFormat( rFormat ) );
+            aDics.insert( aDics.end(), aTmpDic.begin(), aTmpDic.end() );
+        }
+
+        //!! for compatibility with old dictionaries (the ones not using extensions
+        //!! or new configuration entries, but still using the dictionary.lst file)
+        //!! Get the list of old style spell checking dictionaries to use...
+        std::vector< SvtLinguConfigDictionaryEntry > aOldStyleDics(
+                GetOldStyleDics( "HYPH" ) );
+
+        // to prefer dictionaries with configuration entries we will only
+        // use those old style dictionaries that add a language that
+        // is not yet supported by the list of new style dictionaries
+        MergeNewStyleDicsAndOldStyleDics( aDics, aOldStyleDics );
+
+        if (!aDics.empty())
+        {
+            // get supported locales from the dictionaries-to-use...
+            std::set<OUString> aLocaleNamesSet;
+            for (auto const& dict : aDics)
+            {
+                for (const auto& rLocaleName : dict.aLocaleNames)
+                {
+                    aLocaleNamesSet.insert( rLocaleName );
+                }
+            }
+            // ... and add them to the resulting sequence
+            std::vector<Locale> aLocalesVec;
+            aLocalesVec.reserve(aLocaleNamesSet.size());
+
+            std::transform(aLocaleNamesSet.begin(), aLocaleNamesSet.end(), std::back_inserter(aLocalesVec),
+                [](const OUString& localeName) { return LanguageTag::convertToLocale(localeName); });
+
+            aSuppLocales = comphelper::containerToSequence(aLocalesVec);
+
+            //! For each dictionary and each locale we need a separate entry.
+            //! If this results in more than one dictionary per locale than (for now)
+            //! it is undefined which dictionary gets used.
+            //! In the future the implementation should support using several dictionaries
+            //! for one locale.
+            sal_Int32 numdict = std::accumulate(aDics.begin(), aDics.end(), 0,
+                [](const sal_Int32 nSum, const SvtLinguConfigDictionaryEntry& dict) {
+                    return nSum + dict.aLocaleNames.getLength(); });
+
+            // add dictionary information
+            mvDicts.resize(numdict);
+
+            sal_Int32 k = 0;
+            for (auto const& dict :  aDics)
+            {
+                if (dict.aLocaleNames.hasElements() &&
+                    dict.aLocations.hasElements())
+                {
+                    // currently only one language per dictionary is supported in the actual implementation...
+                    // Thus here we work-around this by adding the same dictionary several times.
+                    // Once for each of its supported locales.
+                    for (const auto& rLocaleName : dict.aLocaleNames)
+                    {
+                        LanguageTag aLanguageTag(rLocaleName);
+                        mvDicts[k].aPtr = nullptr;
+                        mvDicts[k].eEnc = RTL_TEXTENCODING_DONTKNOW;
+                        mvDicts[k].aLoc = aLanguageTag.getLocale();
+                        mvDicts[k].apCC.reset( new CharClass( std::move(aLanguageTag) ) );
+                        // also both files have to be in the same directory and the
+                        // file names must only differ in the extension (.aff/.dic).
+                        // Thus we use the first location only and strip the extension part.
+                        OUString aLocation = dict.aLocations[0];
+                        sal_Int32 nPos = aLocation.lastIndexOf( '.' );
+                        aLocation = aLocation.copy( 0, nPos );
+                        mvDicts[k].aName = aLocation;
+
+                        ++k;
+                    }
+                }
+            }
+            DBG_ASSERT( k == numdict, "index mismatch?" );
+        }
+        else
+        {
+            // no dictionary found so register no dictionaries
+            mvDicts.clear();
+            aSuppLocales.realloc(0);
+        }
+    }
+
+    return aSuppLocales;
+}
+
+sal_Bool SAL_CALL Hyphenator::hasLocale(const Locale& rLocale)
+{
+    MutexGuard  aGuard( GetLinguMutex() );
+
+    if (!aSuppLocales.hasElements())
+        getLocales();
+
+    return comphelper::findValue(aSuppLocales, rLocale) != -1;
+}
+
+namespace {
+bool LoadDictionary(HDInfo& rDict)
+{
+    OUString DictFN = rDict.aName + ".dic";
+    OUString dictpath;
+
+    osl::FileBase::getSystemPathFromFileURL(DictFN, dictpath);
+
+#if defined(_WIN32)
+    // hnj_hyphen_load expects UTF-8 encoded paths with \\?\ long path prefix.
+    OString sTmp = Win_AddLongPathPrefix(OUStringToOString(dictpath, RTL_TEXTENCODING_UTF8));
+#else
+    OString sTmp(OU2ENC(dictpath, osl_getThreadTextEncoding()));
+#endif
+    HyphenDict *dict = nullptr;
+    if ((dict = hnj_hyphen_load(sTmp.getStr())) == nullptr)
+    {
+        SAL_WARN(
+            "lingucomponent",
+            "Couldn't find file " << dictpath);
+        return false;
+    }
+    rDict.aPtr = dict;
+    rDict.eEnc = getTextEncodingFromCharset(dict->cset);
+    return true;
+}
+}
+
+Reference< XHyphenatedWord > SAL_CALL Hyphenator::hyphenate( const OUString& aWord,
+       const css::lang::Locale& aLocale,
+       sal_Int16 nMaxLeading,
+       const css::uno::Sequence< css::beans::PropertyValue >& aProperties )
+{
+    PropertyHelper_Hyphenation& rHelper = GetPropHelper();
+    rHelper.SetTmpPropVals(aProperties);
+    sal_Int16 minTrail = rHelper.GetMinTrailing();
+    sal_Int16 minLead = rHelper.GetMinLeading();
+    sal_Int16 minLen = rHelper.GetMinWordLength();
+    bool bNoHyphenateCaps = rHelper.IsNoHyphenateCaps();
+
+    rtl_TextEncoding eEnc = RTL_TEXTENCODING_DONTKNOW;
+
+    Reference< XHyphenatedWord > xRes;
+
+    int k = -1;
+    for (size_t j = 0; j < mvDicts.size(); ++j)
+    {
+        if (aLocale == mvDicts[j].aLoc)
+            k = j;
+    }
+
+    // if we have a hyphenation dictionary matching this locale
+    if (k != -1)
+    {
+        int nHyphenationPos = -1;
+        int nHyphenationPosAlt = -1;
+        int nHyphenationPosAltHyph = -1;
+
+        // if this dictionary has not been loaded yet do that
+        if (!mvDicts[k].aPtr)
+        {
+            if (!LoadDictionary(mvDicts[k]))
+                return nullptr;
+        }
+
+        // otherwise hyphenate the word with that dictionary
+        HyphenDict *dict = mvDicts[k].aPtr;
+        eEnc = mvDicts[k].eEnc;
+        CharClass * pCC =  mvDicts[k].apCC.get();
+
+        // Don't hyphenate uppercase words if requested
+        if (bNoHyphenateCaps && aWord == makeUpperCase(aWord, pCC))
+        {
+            return nullptr;
+        }
+
+        // we don't want to work with a default text encoding since following incorrect
+        // results may occur only for specific text and thus may be hard to notice.
+        // Thus better always make a clean exit here if the text encoding is in question.
+        // Hopefully something not working at all will raise proper attention quickly. ;-)
+        DBG_ASSERT( eEnc != RTL_TEXTENCODING_DONTKNOW, "failed to get text encoding! (maybe incorrect encoding string in file)" );
+        if (eEnc == RTL_TEXTENCODING_DONTKNOW)
+            return nullptr;
+
+        CapType ct = capitalType(aWord, pCC);
+
+        // first convert any smart quotes or apostrophes to normal ones
+        OUStringBuffer rBuf(aWord);
+        sal_Int32 nc = rBuf.getLength();
+        sal_Unicode ch;
+        for (sal_Int32 ix=0; ix < nc; ix++)
+        {
+            ch = rBuf[ix];
+            if ((ch == 0x201C) || (ch == 0x201D))
+                rBuf[ix] = u'"';
+            if ((ch == 0x2018) || (ch == 0x2019))
+                rBuf[ix] = u'\'';
+        }
+        OUString nWord(rBuf.makeStringAndClear());
+
+        // now convert word to all lowercase for pattern recognition
+        OUString nTerm(makeLowerCase(nWord, pCC));
+
+        // now convert word to needed encoding
+        OString encWord(OU2ENC(nTerm,eEnc));
+
+        int wordlen = encWord.getLength();
+        std::unique_ptr<char[]> lcword(new char[wordlen + 1]);
+        std::unique_ptr<char[]> hyphens(new char[wordlen + 5]);
+
+        char ** rep = nullptr; // replacements of discretionary hyphenation
+        int * pos = nullptr; // array of [hyphenation point] minus [deletion position]
+        int * cut = nullptr; // length of deletions in original word
+
+        // copy converted word into simple char buffer
+        strcpy(lcword.get(),encWord.getStr());
+
+        // now strip off any ending periods
+        int n = wordlen-1;
+        while((n >=0) && (lcword[n] == '.'))
+            n--;
+        n++;
+        if (n > 0)
+        {
+            const bool bFailed = 0 != hnj_hyphen_hyphenate3( dict, lcword.get(), n, hyphens.get(), nullptr,
+                    &rep, &pos, &cut, minLead, minTrail,
+                    std::max<sal_Int16>(dict->clhmin, std::max<sal_Int16>(dict->clhmin, 2) + std::max(0, minLead  - std::max<sal_Int16>(dict->lhmin, 2))),
+                    std::max<sal_Int16>(dict->crhmin, std::max<sal_Int16>(dict->crhmin, 2) + std::max(0, minTrail - std::max<sal_Int16>(dict->rhmin, 2))) );
+            if (bFailed)
+            {
+                // whoops something did not work
+                if (rep)
+                {
+                    for(int j = 0; j < n; j++)
+                    {
+                        if (rep[j]) free(rep[j]);
+                    }
+                    free(rep);
+                }
+                if (pos) free(pos);
+                if (cut) free(cut);
+                return nullptr;
+            }
+        }
+
+        // now backfill hyphens[] for any removed trailing periods
+        for (int c = n; c < wordlen; c++) hyphens[c] = '0';
+        hyphens[wordlen] = '\0';
+
+        sal_Int32 Leading =  GetPosInWordToCheck( aWord, nMaxLeading );
+
+        for (sal_Int32 i = 0; i < n; i++)
+        {
+            int leftrep = 0;
+            bool hit = (n >= minLen);
+            if (!rep || !rep[i])
+            {
+                hit = hit && (hyphens[i]&1) && (i < Leading);
+                hit = hit && (i >= (minLead-1) );
+                hit = hit && ((n - i - 1) >= minTrail);
+            }
+            else
+            {
+                // calculate change character length before hyphenation point signed with '='
+                for (char * c = rep[i]; *c && (*c != '='); c++)
+                {
+                    if (eEnc == RTL_TEXTENCODING_UTF8)
+                    {
+                        if (static_cast<unsigned char>(*c) >> 6 != 2)
+                            leftrep++;
+                    }
+                    else
+                        leftrep++;
+                }
+                hit = hit && (hyphens[i]&1) && ((i + leftrep - pos[i]) < Leading);
+                hit = hit && ((i + leftrep - pos[i]) >= (minLead-1) );
+                hit = hit && ((n - i - 1 + sal::static_int_cast< sal_sSize >(strlen(rep[i])) - leftrep - 1) >= minTrail);
+            }
+            if (hit)
+            {
+                nHyphenationPos = i;
+                if (rep && rep[i])
+                {
+                    nHyphenationPosAlt = i - pos[i];
+                    nHyphenationPosAltHyph = i + leftrep - pos[i];
+                }
+            }
+        }
+
+        if (nHyphenationPos  == -1)
+        {
+            xRes = nullptr;
+        }
+        else
+        {
+            if (rep && rep[nHyphenationPos])
+            {
+                // remove equal sign
+                char * s = rep[nHyphenationPos];
+                int eq = 0;
+                for (; *s; s++)
+                {
+                    if (*s == '=') eq = 1;
+                    if (eq) *s = *(s + 1);
+                }
+                OUString repHyphlow(rep[nHyphenationPos], strlen(rep[nHyphenationPos]), eEnc);
+                OUString repHyph;
+                switch (ct)
+                {
+                    case CapType::ALLCAP:
+                    {
+                        repHyph = makeUpperCase(repHyphlow, pCC);
+                        break;
+                    }
+                    case CapType::INITCAP:
+                    {
+                        if (nHyphenationPosAlt == -1)
+                            repHyph = makeInitCap(repHyphlow, pCC);
+                        else
+                             repHyph = repHyphlow;
+                        break;
+                    }
+                    default:
+                    {
+                        repHyph = repHyphlow;
+                        break;
+                    }
+                }
+
+                // handle shortening
+                sal_Int16 nPos = static_cast<sal_Int16>((nHyphenationPosAltHyph < nHyphenationPos) ?
+                nHyphenationPosAltHyph : nHyphenationPos);
+                // discretionary hyphenation
+                xRes = HyphenatedWord::CreateHyphenatedWord( aWord, LinguLocaleToLanguage( aLocale ), nPos,
+                    aWord.replaceAt(nHyphenationPosAlt + 1, cut[nHyphenationPos], repHyph),
+                    static_cast<sal_Int16>(nHyphenationPosAltHyph));
+            }
+            else
+            {
+                xRes = HyphenatedWord::CreateHyphenatedWord( aWord, LinguLocaleToLanguage( aLocale ),
+                    static_cast<sal_Int16>(nHyphenationPos), aWord, static_cast<sal_Int16>(nHyphenationPos));
+            }
+        }
+
+        if (rep)
+        {
+            for(int j = 0; j < n; j++)
+            {
+                if (rep[j]) free(rep[j]);
+            }
+            free(rep);
+        }
+        if (pos) free(pos);
+        if (cut) free(cut);
+        return xRes;
+    }
+    return nullptr;
+}
+
+Reference < XHyphenatedWord > SAL_CALL Hyphenator::queryAlternativeSpelling(
+        const OUString& aWord,
+        const css::lang::Locale& aLocale,
+        sal_Int16 nIndex,
+        const css::uno::Sequence< css::beans::PropertyValue >& aProperties )
+{
+    // Firstly we allow only one plus character before the hyphen to avoid to miss the right break point:
+    for (int extrachar = 1; extrachar <= 2; extrachar++)
+    {
+        Reference< XHyphenatedWord > xRes = hyphenate(aWord, aLocale, nIndex + 1 + extrachar, aProperties);
+        if (xRes.is() && xRes->isAlternativeSpelling() && xRes->getHyphenationPos() == nIndex)
+            return xRes;
+    }
+    return nullptr;
+}
+
+Reference< XPossibleHyphens > SAL_CALL Hyphenator::createPossibleHyphens( const OUString& aWord,
+        const css::lang::Locale& aLocale,
+        const css::uno::Sequence< css::beans::PropertyValue >& aProperties )
+{
+    PropertyHelper_Hyphenation& rHelper = GetPropHelper();
+    rHelper.SetTmpPropVals(aProperties);
+    sal_Int16 minTrail = rHelper.GetMinTrailing();
+    sal_Int16 minLead = rHelper.GetMinLeading();
+    sal_Int16 minLen = rHelper.GetMinWordLength();
+
+    // Resolves: fdo#41083 honour MinWordLength in "createPossibleHyphens" as
+    // well as "hyphenate"
+    if (aWord.getLength() < minLen)
+    {
+        return PossibleHyphens::CreatePossibleHyphens( aWord, LinguLocaleToLanguage( aLocale ),
+                      aWord, Sequence< sal_Int16 >() );
+    }
+
+    int k = -1;
+    for (size_t j = 0; j < mvDicts.size(); ++j)
+    {
+        if (aLocale == mvDicts[j].aLoc)
+            k = j;
+    }
+
+    // if we have a hyphenation dictionary matching this locale
+    if (k != -1)
+    {
+        HyphenDict *dict = nullptr;
+        // if this dictionary has not been loaded yet do that
+        if (!mvDicts[k].aPtr)
+        {
+            if (!LoadDictionary(mvDicts[k]))
+                return nullptr;
+        }
+
+        // otherwise hyphenate the word with that dictionary
+        dict = mvDicts[k].aPtr;
+        rtl_TextEncoding eEnc = mvDicts[k].eEnc;
+        CharClass* pCC = mvDicts[k].apCC.get();
+
+        // we don't want to work with a default text encoding since following incorrect
+        // results may occur only for specific text and thus may be hard to notice.
+        // Thus better always make a clean exit here if the text encoding is in question.
+        // Hopefully something not working at all will raise proper attention quickly. ;-)
+        DBG_ASSERT( eEnc != RTL_TEXTENCODING_DONTKNOW, "failed to get text encoding! (maybe incorrect encoding string in file)" );
+        if (eEnc == RTL_TEXTENCODING_DONTKNOW)
+            return nullptr;
+
+        // first handle smart quotes both single and double
+        OUStringBuffer rBuf(aWord);
+        sal_Int32 nc = rBuf.getLength();
+        sal_Unicode ch;
+        for (sal_Int32 ix=0; ix < nc; ix++)
+        {
+            ch = rBuf[ix];
+            if ((ch == 0x201C) || (ch == 0x201D))
+                rBuf[ix] = u'"';
+            if ((ch == 0x2018) || (ch == 0x2019))
+                rBuf[ix] = u'\'';
+        }
+        OUString nWord(rBuf.makeStringAndClear());
+
+        // now convert word to all lowercase for pattern recognition
+        OUString nTerm(makeLowerCase(nWord, pCC));
+
+        // now convert word to needed encoding
+        OString encWord(OU2ENC(nTerm,eEnc));
+
+        sal_Int32 wordlen = encWord.getLength();
+        std::unique_ptr<char[]> lcword(new char[wordlen+1]);
+        std::unique_ptr<char[]> hyphens(new char[wordlen+5]);
+        char ** rep = nullptr; // replacements of discretionary hyphenation
+        int * pos = nullptr; // array of [hyphenation point] minus [deletion position]
+        int * cut = nullptr; // length of deletions in original word
+
+        // copy converted word into simple char buffer
+        strcpy(lcword.get(),encWord.getStr());
+
+        // first remove any trailing periods
+        sal_Int32 n = wordlen-1;
+        while((n >=0) && (lcword[n] == '.'))
+            n--;
+        n++;
+        if (n > 0)
+        {
+            const bool bFailed = 0 != hnj_hyphen_hyphenate3(dict, lcword.get(), n, hyphens.get(), nullptr,
+                    &rep, &pos, &cut, minLead, minTrail,
+                    std::max<sal_Int16>(dict->clhmin, std::max<sal_Int16>(dict->clhmin, 2) + std::max(0, minLead - std::max<sal_Int16>(dict->lhmin, 2))),
+                    std::max<sal_Int16>(dict->crhmin, std::max<sal_Int16>(dict->crhmin, 2) + std::max(0, minTrail - std::max<sal_Int16>(dict->rhmin, 2))) );
+            if (bFailed)
+            {
+                if (rep)
+                {
+                    for(int j = 0; j < n; j++)
+                    {
+                        if (rep[j]) free(rep[j]);
+                    }
+                    free(rep);
+                }
+                if (pos) free(pos);
+                if (cut) free(cut);
+
+                return nullptr;
+            }
+        }
+        // now backfill hyphens[] for any removed periods
+        for (sal_Int32 c = n; c < wordlen; c++)
+            hyphens[c] = '0';
+        hyphens[wordlen] = '\0';
+
+        sal_Int32 nHyphCount = 0;
+
+        for ( sal_Int32 i = 0; i < encWord.getLength(); i++)
+        {
+            if (hyphens[i]&1)
+                nHyphCount++;
+        }
+
+        Sequence< sal_Int16 > aHyphPos(nHyphCount);
+        sal_Int16 *pPos = aHyphPos.getArray();
+        OUStringBuffer hyphenatedWordBuffer;
+        nHyphCount = 0;
+
+        for (sal_Int32 i = 0; i < nWord.getLength(); i++)
+        {
+            hyphenatedWordBuffer.append(aWord[i]);
+            // hyphenation position
+            if (hyphens[i]&1)
+            {
+                // linguistic::PossibleHyphens is stuck with
+                // css::uno::Sequence<sal_Int16> because of
+                // css.linguistic2.XPossibleHyphens.getHyphenationPositions, so
+                // any further positions need to be ignored:
+                assert(i >= SAL_MIN_INT16);
+                if (i > SAL_MAX_INT16)
+                {
+                    SAL_WARN(
+                        "lingucomponent",
+                        "hyphen pos " << i << " > SAL_MAX_INT16 in \"" << aWord
+                            << "\"");
+                    continue;
+                }
+                pPos[nHyphCount] = i;
+                hyphenatedWordBuffer.append('=');
+                nHyphCount++;
+            }
+        }
+
+        OUString hyphenatedWord = hyphenatedWordBuffer.makeStringAndClear();
+
+        Reference< XPossibleHyphens > xRes = PossibleHyphens::CreatePossibleHyphens(
+            aWord, LinguLocaleToLanguage( aLocale ), hyphenatedWord, aHyphPos);
+
+        if (rep)
+        {
+            for(int j = 0; j < n; j++)
+            {
+                if (rep[j]) free(rep[j]);
+            }
+            free(rep);
+        }
+        if (pos) free(pos);
+        if (cut) free(cut);
+
+        return xRes;
+    }
+
+    return nullptr;
+}
+
+OUString Hyphenator::makeLowerCase(const OUString& aTerm, CharClass const * pCC)
+{
+    if (pCC)
+        return pCC->lowercase(aTerm);
+    return aTerm;
+}
+
+OUString Hyphenator::makeUpperCase(const OUString& aTerm, CharClass const * pCC)
+{
+    if (pCC)
+        return pCC->uppercase(aTerm);
+    return aTerm;
+}
+
+OUString Hyphenator::makeInitCap(const OUString& aTerm, CharClass const * pCC)
+{
+    sal_Int32 tlen = aTerm.getLength();
+    if (pCC && tlen)
+    {
+        OUString bTemp = aTerm.copy(0,1);
+        if (tlen > 1)
+            return ( pCC->uppercase(bTemp, 0, 1) + pCC->lowercase(aTerm,1,(tlen-1)) );
+
+        return pCC->uppercase(bTemp, 0, 1);
+    }
+    return aTerm;
+}
+
+sal_Bool SAL_CALL Hyphenator::addLinguServiceEventListener(
+        const Reference< XLinguServiceEventListener >& rxLstnr )
+{
+    MutexGuard  aGuard( GetLinguMutex() );
+
+    bool bRes = false;
+    if (!bDisposing && rxLstnr.is())
+    {
+        bRes = GetPropHelper().addLinguServiceEventListener( rxLstnr );
+    }
+    return bRes;
+}
+
+sal_Bool SAL_CALL Hyphenator::removeLinguServiceEventListener(
+        const Reference< XLinguServiceEventListener >& rxLstnr )
+{
+    MutexGuard  aGuard( GetLinguMutex() );
+
+    bool bRes = false;
+    if (!bDisposing && rxLstnr.is())
+    {
+        bRes = GetPropHelper().removeLinguServiceEventListener( rxLstnr );
+    }
+    return bRes;
+}
+
+OUString SAL_CALL Hyphenator::getServiceDisplayName(const Locale& rLocale)
+{
+    std::locale loc(Translate::Create("svt", LanguageTag(rLocale)));
+    return Translate::get(STR_DESCRIPTION_LIBHYPHEN, loc);
+}
+
+void SAL_CALL Hyphenator::initialize( const Sequence< Any >& rArguments )
+{
+    MutexGuard  aGuard( GetLinguMutex() );
+
+    if (pPropHelper)
+        return;
+
+    sal_Int32 nLen = rArguments.getLength();
+    if (2 == nLen)
+    {
+        Reference< XLinguProperties >   xPropSet;
+        rArguments.getConstArray()[0] >>= xPropSet;
+        // rArguments.getConstArray()[1] >>= xDicList;
+
+        //! Pointer allows for access of the non-UNO functions.
+        //! And the reference to the UNO-functions while increasing
+        //! the ref-count and will implicitly free the memory
+        //! when the object is no longer used.
+        pPropHelper.reset( new PropertyHelper_Hyphenation( static_cast<XHyphenator *>(this), xPropSet ) );
+        pPropHelper->AddAsPropListener();   //! after a reference is established
+    }
+    else {
+        OSL_FAIL( "wrong number of arguments in sequence" );
+    }
+}
+
+void SAL_CALL Hyphenator::dispose()
+{
+    MutexGuard  aGuard( GetLinguMutex() );
+
+    if (!bDisposing)
+    {
+        bDisposing = true;
+        EventObject aEvtObj( static_cast<XHyphenator *>(this) );
+        aEvtListeners.disposeAndClear( aEvtObj );
+        if (pPropHelper)
+        {
+            pPropHelper->RemoveAsPropListener();
+            pPropHelper.reset();
+        }
+    }
+}
+
+void SAL_CALL Hyphenator::addEventListener( const Reference< XEventListener >& rxListener )
+{
+    MutexGuard  aGuard( GetLinguMutex() );
+
+    if (!bDisposing && rxListener.is())
+        aEvtListeners.addInterface( rxListener );
+}
+
+void SAL_CALL Hyphenator::removeEventListener( const Reference< XEventListener >& rxListener )
+{
+    MutexGuard  aGuard( GetLinguMutex() );
+
+    if (!bDisposing && rxListener.is())
+        aEvtListeners.removeInterface( rxListener );
+}
+
+// Service specific part
+OUString SAL_CALL Hyphenator::getImplementationName()
+{
+    return "org.openoffice.lingu.LibHnjHyphenator";
+}
+
+sal_Bool SAL_CALL Hyphenator::supportsService( const OUString& ServiceName )
+{
+    return cppu::supportsService(this, ServiceName);
+}
+
+Sequence< OUString > SAL_CALL Hyphenator::getSupportedServiceNames()
+{
+    return { SN_HYPHENATOR };
+}
+
+extern "C" SAL_DLLPUBLIC_EXPORT css::uno::XInterface*
+lingucomponent_Hyphenator_get_implementation(
+    css::uno::XComponentContext* , css::uno::Sequence<css::uno::Any> const&)
+{
+    return cppu::acquire(new Hyphenator());
+}
+
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/lingucomponent/source/hyphenator/hyphen/hyphenimp.hxx b/lingucomponent/source/hyphenator/hyphen/hyphenimp.hxx
new file mode 100644
index 0000000000..45ebca1125
--- /dev/null
+++ b/lingucomponent/source/hyphenator/hyphen/hyphenimp.hxx
@@ -0,0 +1,126 @@
+/* -*- 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_LINGUCOMPONENT_SOURCE_HYPHENATOR_HYPHEN_HYPHENIMP_HXX
+#define INCLUDED_LINGUCOMPONENT_SOURCE_HYPHENATOR_HYPHEN_HYPHENIMP_HXX
+
+#include <comphelper/interfacecontainer3.hxx>
+#include <cppuhelper/implbase.hxx>
+#include <com/sun/star/lang/XComponent.hpp>
+#include <com/sun/star/lang/XInitialization.hpp>
+#include <com/sun/star/lang/XServiceDisplayName.hpp>
+#include <com/sun/star/beans/XPropertySet.hpp>
+#include <com/sun/star/beans/PropertyValues.hpp>
+#include <com/sun/star/lang/XServiceInfo.hpp>
+#include <com/sun/star/linguistic2/XHyphenator.hpp>
+#include <com/sun/star/linguistic2/XLinguServiceEventBroadcaster.hpp>
+
+#include <unotools/charclass.hxx>
+
+#include <linguistic/misc.hxx>
+#include <linguistic/lngprophelp.hxx>
+
+#include <lingutil.hxx>
+#include <stdio.h>
+
+#include <hyphen.h>
+
+using namespace ::com::sun::star::uno;
+using namespace ::com::sun::star::beans;
+using namespace ::com::sun::star::lang;
+using namespace ::com::sun::star::linguistic2;
+
+struct HDInfo {
+  HyphenDict *     aPtr;
+  OUString         aName;
+  Locale           aLoc;
+  rtl_TextEncoding eEnc;
+  std::unique_ptr<CharClass> apCC;
+};
+
+class Hyphenator :
+    public cppu::WeakImplHelper
+    <
+        XHyphenator,
+        XLinguServiceEventBroadcaster,
+        XInitialization,
+        XComponent,
+        XServiceInfo,
+        XServiceDisplayName
+    >
+{
+    Sequence< Locale >                      aSuppLocales;
+    std::vector< HDInfo >                   mvDicts;
+
+    ::comphelper::OInterfaceContainerHelper3<XEventListener> aEvtListeners;
+    std::unique_ptr<linguistic::PropertyHelper_Hyphenation> pPropHelper;
+    bool                                    bDisposing;
+
+    Hyphenator(const Hyphenator &) = delete;
+    Hyphenator & operator = (const Hyphenator &) = delete;
+
+    linguistic::PropertyHelper_Hyphenation& GetPropHelper_Impl();
+    linguistic::PropertyHelper_Hyphenation& GetPropHelper()
+    {
+        return pPropHelper ? *pPropHelper : GetPropHelper_Impl();
+    }
+
+public:
+    Hyphenator();
+
+    virtual ~Hyphenator() override;
+
+    // XSupportedLocales (for XHyphenator)
+    virtual Sequence< Locale > SAL_CALL getLocales() override;
+    virtual sal_Bool SAL_CALL hasLocale( const Locale& rLocale ) override;
+
+    // XHyphenator
+    virtual css::uno::Reference< css::linguistic2::XHyphenatedWord > SAL_CALL hyphenate( const OUString& aWord, const css::lang::Locale& aLocale, sal_Int16 nMaxLeading, const css::uno::Sequence< css::beans::PropertyValue >& aProperties ) override;
+    virtual css::uno::Reference< css::linguistic2::XHyphenatedWord > SAL_CALL queryAlternativeSpelling( const OUString& aWord, const css::lang::Locale& aLocale, sal_Int16 nIndex, const css::uno::Sequence< css::beans::PropertyValue >& aProperties ) override;
+    virtual css::uno::Reference< css::linguistic2::XPossibleHyphens > SAL_CALL createPossibleHyphens( const OUString& aWord, const css::lang::Locale& aLocale, const css::uno::Sequence< css::beans::PropertyValue >& aProperties ) override;
+
+    // XLinguServiceEventBroadcaster
+    virtual sal_Bool SAL_CALL addLinguServiceEventListener( const Reference< XLinguServiceEventListener >& rxLstnr ) override;
+    virtual sal_Bool SAL_CALL removeLinguServiceEventListener( const Reference< XLinguServiceEventListener >& rxLstnr ) override;
+
+    // XServiceDisplayName
+    virtual OUString SAL_CALL getServiceDisplayName( const Locale& rLocale ) override;
+
+    // XInitialization
+    virtual void SAL_CALL initialize( const Sequence< Any >& rArguments ) override;
+
+    // XComponent
+    virtual void SAL_CALL dispose() override;
+    virtual void SAL_CALL addEventListener( const Reference< XEventListener >& rxListener ) override;
+    virtual void SAL_CALL removeEventListener( const Reference< XEventListener >& rxListener ) override;
+
+    // XServiceInfo
+    virtual OUString SAL_CALL getImplementationName() override;
+    virtual sal_Bool SAL_CALL supportsService( const OUString& rServiceName ) override;
+    virtual Sequence< OUString > SAL_CALL getSupportedServiceNames() override;
+
+private:
+        static OUString makeLowerCase(const OUString&, CharClass const *);
+        static OUString makeUpperCase(const OUString&, CharClass const *);
+        static OUString makeInitCap(const OUString&, CharClass const *);
+};
+
+#endif
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/lingucomponent/source/languageguessing/guess.cxx b/lingucomponent/source/languageguessing/guess.cxx
new file mode 100644
index 0000000000..a7cbeccabc
--- /dev/null
+++ b/lingucomponent/source/languageguessing/guess.cxx
@@ -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 .
+ */
+
+#include <sal/config.h>
+
+#include <cassert>
+#include <string.h>
+
+#ifdef SYSTEM_LIBEXTTEXTCAT
+#include <libexttextcat/textcat.h>
+#else
+#include <textcat.h>
+#endif
+
+#include "guess.hxx"
+
+/* Old textcat.h versions defined bad spelled constants. */
+#ifndef TEXTCAT_RESULT_UNKNOWN_STR
+#define TEXTCAT_RESULT_UNKNOWN_STR _TEXTCAT_RESULT_UNKOWN
+#endif
+
+#ifndef TEXTCAT_RESULT_SHORT_STR
+#define TEXTCAT_RESULT_SHORT_STR _TEXTCAT_RESULT_SHORT
+#endif
+
+Guess::Guess()
+    : language_str(DEFAULT_LANGUAGE)
+    , country_str(DEFAULT_COUNTRY)
+{
+}
+
+/*
+* this use a char * string to build the guess object
+* a string like those is made as : [language-country-encoding]...
+*
+*/
+Guess::Guess(const char * guess_str)
+    : language_str(DEFAULT_LANGUAGE)
+    , country_str(DEFAULT_COUNTRY)
+{
+    //if the guess is not like "UNKNOWN" or "SHORT", go into the brackets
+    if(strcmp(guess_str + 1, TEXTCAT_RESULT_UNKNOWN_STR) == 0
+       || strcmp(guess_str + 1, TEXTCAT_RESULT_SHORT_STR) == 0)
+        return;
+
+    // From how this ctor is called from SimpleGuesser::GuessLanguage and
+    // SimpleGuesser::GetManagedLanguages in
+    // lingucomponent/source/languageguessing/simpleguesser.cxx, guess_str must start with "[":
+    assert(guess_str[0] == GUESS_SEPARATOR_OPEN);
+    auto const start = guess_str + 1;
+    // Only look at the prefix of guess_str, delimited by the next "]" or "[" or end-of-string;
+    // split it into at most three segments separated by "-" (where excess occurrences of "-"
+    // would become part of the third segment), like "en-US-utf8"; the first segment denotes the
+    // language; if there are three segments, the second denotes the country and the third the
+    // encoding; otherwise, the second segment, if any (e.g., in "haw-utf8"), denotes the
+    // encoding:
+    char const * dash1 = nullptr;
+    char const * dash2 = nullptr;
+    auto p = start;
+    for (;; ++p) {
+        auto const c = *p;
+        if (c == '\0' || c == GUESS_SEPARATOR_OPEN || c == GUESS_SEPARATOR_CLOSE) {
+            break;
+        }
+        if (c == GUESS_SEPARATOR_SEP) {
+            if (dash1 == nullptr) {
+                dash1 = p;
+            } else {
+                dash2 = p;
+                // The encoding is ignored, so we can stop as soon as we found the second "-":
+                break;
+            }
+        }
+    }
+    auto const langLen = (dash1 == nullptr ? p : dash1) - start;
+    if (langLen != 0) { // if not we use the default value
+        language_str.assign(start, langLen);
+    }
+    if (dash2 != nullptr) {
+        country_str.assign(dash1 + 1, dash2 - (dash1 + 1));
+    }
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/lingucomponent/source/languageguessing/guess.hxx b/lingucomponent/source/languageguessing/guess.hxx
new file mode 100644
index 0000000000..627033d3ab
--- /dev/null
+++ b/lingucomponent/source/languageguessing/guess.hxx
@@ -0,0 +1,54 @@
+/* -*- 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_LINGUCOMPONENT_SOURCE_LANGUAGEGUESSING_GUESS_HXX
+#define INCLUDED_LINGUCOMPONENT_SOURCE_LANGUAGEGUESSING_GUESS_HXX
+
+#define GUESS_SEPARATOR_OPEN     '['
+#define GUESS_SEPARATOR_CLOSE    ']'
+#define GUESS_SEPARATOR_SEP      '-'
+#define DEFAULT_LANGUAGE         ""
+#define DEFAULT_COUNTRY          ""
+#define DEFAULT_ENCODING         ""
+
+#include <string>
+
+class Guess final {
+    public:
+
+        /**
+         * Default init
+         */
+        Guess();
+
+        /**
+         * Init from a string like [en-UK-utf8] and the rank
+         */
+        Guess(const char * guess_str);
+
+        const std::string& GetLanguage() const { return language_str;}
+        const std::string& GetCountry() const { return country_str;}
+
+    private:
+        std::string language_str;
+        std::string country_str;
+};
+
+#endif
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/lingucomponent/source/languageguessing/guesslang.component b/lingucomponent/source/languageguessing/guesslang.component
new file mode 100644
index 0000000000..75f6e7ce2d
--- /dev/null
+++ b/lingucomponent/source/languageguessing/guesslang.component
@@ -0,0 +1,26 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+ * 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 .
+ -->
+
+<component loader="com.sun.star.loader.SharedLibrary" environment="@CPPU_ENV@"
+    xmlns="http://openoffice.org/2010/uno-components">
+  <implementation name="com.sun.star.lingu2.LanguageGuessing"
+    constructor="lingucomponent_LangGuess_get_implementation">
+    <service name="com.sun.star.linguistic2.LanguageGuessing"/>
+  </implementation>
+</component>
diff --git a/lingucomponent/source/languageguessing/guesslang.cxx b/lingucomponent/source/languageguessing/guesslang.cxx
new file mode 100644
index 0000000000..e88cd997ca
--- /dev/null
+++ b/lingucomponent/source/languageguessing/guesslang.cxx
@@ -0,0 +1,320 @@
+/* -*- 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 <iostream>
+#include <mutex>
+#include <string_view>
+
+#include <osl/file.hxx>
+#include <tools/debug.hxx>
+
+#include <sal/config.h>
+#include <cppuhelper/factory.hxx>
+#include <cppuhelper/implbase.hxx>
+#include <cppuhelper/supportsservice.hxx>
+
+#include "simpleguesser.hxx"
+#include "guess.hxx"
+
+#include <com/sun/star/lang/IllegalArgumentException.hpp>
+#include <com/sun/star/lang/XServiceInfo.hpp>
+#include <com/sun/star/linguistic2/XLanguageGuessing.hpp>
+#include <unotools/pathoptions.hxx>
+#include <osl/thread.h>
+
+#include <sal/macros.h>
+
+#ifdef SYSTEM_LIBEXTTEXTCAT
+#include <libexttextcat/textcat.h>
+#else
+#include <textcat.h>
+#endif
+
+using namespace ::osl;
+using namespace ::cppu;
+using namespace ::com::sun::star;
+using namespace ::com::sun::star::uno;
+using namespace ::com::sun::star::lang;
+using namespace ::com::sun::star::linguistic2;
+
+static std::mutex & GetLangGuessMutex()
+{
+    static std::mutex aMutex;
+    return aMutex;
+}
+
+namespace {
+
+class LangGuess_Impl :
+    public ::cppu::WeakImplHelper<
+        XLanguageGuessing,
+        XServiceInfo >
+{
+    SimpleGuesser   m_aGuesser;
+    bool            m_bInitialized;
+
+    virtual ~LangGuess_Impl() override {}
+    void    EnsureInitialized();
+
+public:
+    LangGuess_Impl();
+    LangGuess_Impl(const LangGuess_Impl&) = delete;
+    LangGuess_Impl& operator=(const LangGuess_Impl&) = delete;
+
+    // XServiceInfo implementation
+    virtual OUString SAL_CALL getImplementationName(  ) override;
+    virtual sal_Bool SAL_CALL supportsService( const OUString& ServiceName ) override;
+    virtual Sequence< OUString > SAL_CALL getSupportedServiceNames(  ) override;
+
+    // XLanguageGuessing implementation
+    virtual css::lang::Locale SAL_CALL guessPrimaryLanguage( const OUString& aText, ::sal_Int32 nStartPos, ::sal_Int32 nLen ) override;
+    virtual void SAL_CALL disableLanguages( const css::uno::Sequence< css::lang::Locale >& aLanguages ) override;
+    virtual void SAL_CALL enableLanguages( const css::uno::Sequence< css::lang::Locale >& aLanguages ) override;
+    virtual css::uno::Sequence< css::lang::Locale > SAL_CALL getAvailableLanguages(  ) override;
+    virtual css::uno::Sequence< css::lang::Locale > SAL_CALL getEnabledLanguages(  ) override;
+    virtual css::uno::Sequence< css::lang::Locale > SAL_CALL getDisabledLanguages(  ) override;
+
+    // implementation specific
+    /// @throws RuntimeException
+    void SetFingerPrintsDB( std::u16string_view fileName );
+};
+
+}
+
+LangGuess_Impl::LangGuess_Impl() :
+    m_bInitialized( false )
+{
+}
+
+void LangGuess_Impl::EnsureInitialized()
+{
+    if (m_bInitialized)
+        return;
+
+    // set this to true at the very start to prevent loops because of
+    // implicitly called functions below
+    m_bInitialized = true;
+
+    // set default fingerprint path to where those get installed
+    OUString aPhysPath;
+    OUString aURL( SvtPathOptions().GetFingerprintPath() );
+    osl::FileBase::getSystemPathFromFileURL( aURL, aPhysPath );
+#ifdef _WIN32
+    aPhysPath += "\\";
+#else
+    aPhysPath += "/";
+#endif
+
+    SetFingerPrintsDB( aPhysPath );
+
+#if !defined(EXTTEXTCAT_VERSION_MAJOR)
+
+    // disable currently not functional languages...
+    struct LangCountry
+    {
+        const char *pLang;
+        const char *pCountry;
+    };
+    LangCountry aDisable[] =
+    {
+        // not functional in modified libtextcat, but fixed in >= libexttextcat 3.1.0
+        // which is the first with EXTTEXTCAT_VERSION_MAJOR defined
+        {"sco", ""}, {"zh", "CN"}, {"zh", "TW"}, {"ja", ""}, {"ko", ""},
+        {"ka", ""}, {"hi", ""}, {"mr", ""}, {"ne", ""}, {"sa", ""},
+        {"ta", ""}, {"th", ""}, {"qu", ""}, {"yi", ""}
+    };
+    sal_Int32 nNum = SAL_N_ELEMENTS(aDisable);
+    Sequence< Locale > aDisableSeq( nNum );
+    Locale *pDisableSeq = aDisableSeq.getArray();
+    for (sal_Int32 i = 0;  i < nNum;  ++i)
+    {
+        Locale aLocale;
+        aLocale.Language = OUString::createFromAscii( aDisable[i].pLang );
+        aLocale.Country  = OUString::createFromAscii( aDisable[i].pCountry );
+        pDisableSeq[i] = aLocale;
+    }
+    disableLanguages( aDisableSeq );
+    DBG_ASSERT( nNum == getDisabledLanguages().getLength(), "size mismatch" );
+#endif
+}
+
+Locale SAL_CALL LangGuess_Impl::guessPrimaryLanguage(
+        const OUString& rText,
+        ::sal_Int32 nStartPos,
+        ::sal_Int32 nLen )
+{
+    std::scoped_lock aGuard( GetLangGuessMutex() );
+
+    EnsureInitialized();
+
+    if (nStartPos < 0 || nLen < 0 || nStartPos + nLen > rText.getLength())
+        throw lang::IllegalArgumentException();
+
+    OString o( OUStringToOString( rText.subView(nStartPos, nLen), RTL_TEXTENCODING_UTF8 ) );
+    Guess g = m_aGuesser.GuessPrimaryLanguage(o.getStr());
+    lang::Locale aRes;
+    aRes.Language   = OUString::createFromAscii( g.GetLanguage() );
+    aRes.Country    = OUString::createFromAscii( g.GetCountry() );
+    return aRes;
+}
+
+#define DEFAULT_CONF_FILE_NAME "fpdb.conf"
+
+void LangGuess_Impl::SetFingerPrintsDB(
+        std::u16string_view filePath )
+{
+    //! text encoding for file name / path needs to be in the same encoding the OS uses
+    OString path = OUStringToOString( filePath, osl_getThreadTextEncoding() );
+    OString conf_file_path = path + DEFAULT_CONF_FILE_NAME;
+
+    m_aGuesser.SetDBPath(conf_file_path.getStr(), path.getStr());
+}
+
+uno::Sequence< Locale > SAL_CALL LangGuess_Impl::getAvailableLanguages(  )
+{
+    std::scoped_lock aGuard( GetLangGuessMutex() );
+
+    EnsureInitialized();
+
+    Sequence< css::lang::Locale > aRes;
+    std::vector<Guess> gs = m_aGuesser.GetAllManagedLanguages();
+    aRes.realloc(gs.size());
+
+    css::lang::Locale *pRes = aRes.getArray();
+
+    for(size_t i = 0; i < gs.size() ; i++ ){
+        css::lang::Locale current_aRes;
+        current_aRes.Language   = OUString::createFromAscii( gs[i].GetLanguage() );
+        current_aRes.Country    = OUString::createFromAscii( gs[i].GetCountry() );
+        pRes[i] = current_aRes;
+    }
+
+    return aRes;
+}
+
+uno::Sequence< Locale > SAL_CALL LangGuess_Impl::getEnabledLanguages(  )
+{
+    std::scoped_lock aGuard( GetLangGuessMutex() );
+
+    EnsureInitialized();
+
+    Sequence< css::lang::Locale > aRes;
+    std::vector<Guess> gs = m_aGuesser.GetAvailableLanguages();
+    aRes.realloc(gs.size());
+
+    css::lang::Locale *pRes = aRes.getArray();
+
+    for(size_t i = 0; i < gs.size() ; i++ ){
+        css::lang::Locale current_aRes;
+        current_aRes.Language   = OUString::createFromAscii( gs[i].GetLanguage() );
+        current_aRes.Country    = OUString::createFromAscii( gs[i].GetCountry() );
+        pRes[i] = current_aRes;
+    }
+
+    return aRes;
+}
+
+uno::Sequence< Locale > SAL_CALL LangGuess_Impl::getDisabledLanguages(  )
+{
+    std::scoped_lock aGuard( GetLangGuessMutex() );
+
+    EnsureInitialized();
+
+    Sequence< css::lang::Locale > aRes;
+    std::vector<Guess> gs = m_aGuesser.GetUnavailableLanguages();
+    aRes.realloc(gs.size());
+
+    css::lang::Locale *pRes = aRes.getArray();
+
+    for(size_t i = 0; i < gs.size() ; i++ ){
+        css::lang::Locale current_aRes;
+        current_aRes.Language   = OUString::createFromAscii( gs[i].GetLanguage() );
+        current_aRes.Country    = OUString::createFromAscii( gs[i].GetCountry() );
+        pRes[i] = current_aRes;
+    }
+
+    return aRes;
+}
+
+void SAL_CALL LangGuess_Impl::disableLanguages(
+        const uno::Sequence< Locale >& rLanguages )
+{
+    std::scoped_lock aGuard( GetLangGuessMutex() );
+
+    EnsureInitialized();
+
+    for (const Locale& rLanguage : rLanguages)
+    {
+        std::string language;
+
+        OString l = OUStringToOString( rLanguage.Language, RTL_TEXTENCODING_ASCII_US );
+        OString c = OUStringToOString( rLanguage.Country, RTL_TEXTENCODING_ASCII_US );
+
+        language += l.getStr();
+        language += "-";
+        language += c.getStr();
+        m_aGuesser.DisableLanguage(language);
+    }
+}
+
+void SAL_CALL LangGuess_Impl::enableLanguages(
+        const uno::Sequence< Locale >& rLanguages )
+{
+    std::scoped_lock aGuard( GetLangGuessMutex() );
+
+    EnsureInitialized();
+
+    for (const Locale& rLanguage : rLanguages)
+    {
+        std::string language;
+
+        OString l = OUStringToOString( rLanguage.Language, RTL_TEXTENCODING_ASCII_US );
+        OString c = OUStringToOString( rLanguage.Country, RTL_TEXTENCODING_ASCII_US );
+
+        language += l.getStr();
+        language += "-";
+        language += c.getStr();
+        m_aGuesser.EnableLanguage(language);
+    }
+}
+
+OUString SAL_CALL LangGuess_Impl::getImplementationName(  )
+{
+    return "com.sun.star.lingu2.LanguageGuessing";
+}
+
+sal_Bool SAL_CALL LangGuess_Impl::supportsService( const OUString& ServiceName )
+{
+    return cppu::supportsService(this, ServiceName);
+}
+
+Sequence<OUString> SAL_CALL LangGuess_Impl::getSupportedServiceNames(  )
+{
+    return { "com.sun.star.linguistic2.LanguageGuessing" };
+}
+
+extern "C" SAL_DLLPUBLIC_EXPORT css::uno::XInterface*
+lingucomponent_LangGuess_get_implementation(
+    css::uno::XComponentContext* , css::uno::Sequence<css::uno::Any> const&)
+{
+    return cppu::acquire(new LangGuess_Impl());
+}
+
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/lingucomponent/source/languageguessing/simpleguesser.cxx b/lingucomponent/source/languageguessing/simpleguesser.cxx
new file mode 100644
index 0000000000..7210b1f451
--- /dev/null
+++ b/lingucomponent/source/languageguessing/simpleguesser.cxx
@@ -0,0 +1,221 @@
+/* -*- 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 .
+ */
+
+ /**
+  *
+  *
+  *
+  *
+  * TODO
+  * - Add exception throwing when h == NULL
+  * - Not init h when implicit constructor is launched
+  */
+
+#include <string.h>
+
+#ifdef SYSTEM_LIBEXTTEXTCAT
+#include <libexttextcat/textcat.h>
+#include <libexttextcat/common.h>
+#include <libexttextcat/constants.h>
+#include <libexttextcat/fingerprint.h>
+#else
+#include <textcat.h>
+#include <common.h>
+#include <constants.h>
+#include <fingerprint.h>
+#endif
+
+#include <sal/types.h>
+
+#include<rtl/character.hxx>
+#include "simpleguesser.hxx"
+
+static int startsAsciiCaseInsensitive(const std::string &s1, const std::string &s2){
+            size_t i;
+            int ret = 0;
+
+            size_t min = s1.length();
+            if (min > s2.length())
+                min = s2.length();
+
+            for(i = 0; i < min && s2[i] && s1[i] && !ret; i++){
+                    ret = rtl::toAsciiUpperCase(static_cast<unsigned char>(s1[i]))
+                        -  rtl::toAsciiUpperCase(static_cast<unsigned char>(s2[i]));
+                    if(s1[i] == '.' || s2[i] == '.') {ret = 0;}    //. is a neutral character
+            }
+            return ret;
+ }
+
+namespace {
+
+/**
+ * This following structure is from textcat.c
+ */
+typedef struct textcat_t{
+
+    void **fprint;
+    char *fprint_disable;
+    uint4 size;
+    uint4 maxsize;
+
+    char output[MAXOUTPUTSIZE];
+
+} textcat_t;
+// end of the 3 structs
+
+}
+
+SimpleGuesser::SimpleGuesser()
+{
+    h = nullptr;
+}
+
+SimpleGuesser& SimpleGuesser::operator=(const SimpleGuesser& sg){
+    // Check for self-assignment!
+    if (this == &sg)      // Same object?
+      return *this;       // Yes, so skip assignment, and just return *this.
+
+    if(h){textcat_Done(h);}
+    h = sg.h;
+    return *this;
+}
+
+SimpleGuesser::~SimpleGuesser()
+{
+    if(h){textcat_Done(h);}
+}
+
+/*!
+    \fn SimpleGuesser::GuessLanguage(char* text)
+ */
+std::vector<Guess> SimpleGuesser::GuessLanguage(const char* text)
+{
+    std::vector<Guess> guesses;
+
+    if (!h)
+        return guesses;
+
+    int len = strlen(text);
+
+    if (len > MAX_STRING_LENGTH_TO_ANALYSE)
+        len = MAX_STRING_LENGTH_TO_ANALYSE;
+
+    const char *guess_list = textcat_Classify(h, text, len);
+
+    if (strcmp(guess_list, TEXTCAT_RESULT_SHORT_STR) == 0)
+        return guesses;
+
+    int current_pointer = 0;
+
+    while(guess_list[current_pointer] != '\0')
+    {
+        while (guess_list[current_pointer] != GUESS_SEPARATOR_OPEN && guess_list[current_pointer] != '\0')
+            current_pointer++;
+        if(guess_list[current_pointer] != '\0')
+        {
+            Guess g(guess_list + current_pointer);
+
+            guesses.push_back(g);
+
+            current_pointer++;
+        }
+    }
+
+    return guesses;
+}
+
+Guess SimpleGuesser::GuessPrimaryLanguage(const char* text)
+{
+    std::vector<Guess> ret = GuessLanguage(text);
+    return ret.empty() ? Guess() : ret[0];
+}
+/**
+ * Is used to know which language is available, unavailable or both
+ * when mask = 0xF0, return only Available
+ * when mask = 0x0F, return only Unavailable
+ * when mask = 0xFF, return both Available and Unavailable
+ */
+std::vector<Guess> SimpleGuesser::GetManagedLanguages(const char mask)
+{
+    textcat_t *tables = static_cast<textcat_t*>(h);
+
+    std::vector<Guess> lang;
+    if(!h){return lang;}
+
+    for (size_t i=0; i<tables->size; ++i)
+    {
+        if (tables->fprint_disable[i] & mask)
+        {
+            std::string langStr = "[";
+            langStr += fp_Name(tables->fprint[i]);
+            Guess g(langStr.c_str());
+            lang.push_back(g);
+        }
+    }
+
+    return lang;
+}
+
+std::vector<Guess> SimpleGuesser::GetAvailableLanguages()
+{
+    return GetManagedLanguages( sal::static_int_cast< char >( 0xF0 ) );
+}
+
+std::vector<Guess> SimpleGuesser::GetUnavailableLanguages()
+{
+    return GetManagedLanguages( sal::static_int_cast< char >( 0x0F ));
+}
+
+std::vector<Guess> SimpleGuesser::GetAllManagedLanguages()
+{
+    return GetManagedLanguages( sal::static_int_cast< char >( 0xFF ));
+}
+
+void SimpleGuesser::XableLanguage(const std::string& lang, char mask)
+{
+    textcat_t *tables = static_cast<textcat_t*>(h);
+
+    if(!h){return;}
+
+    for (size_t i=0; i<tables->size; i++)
+    {
+        std::string language(fp_Name(tables->fprint[i]));
+        if (startsAsciiCaseInsensitive(language,lang) == 0)
+            tables->fprint_disable[i] = mask;
+    }
+}
+
+void SimpleGuesser::EnableLanguage(const std::string& lang)
+{
+    XableLanguage(lang,  sal::static_int_cast< char >( 0xF0 ));
+}
+
+void SimpleGuesser::DisableLanguage(const std::string& lang)
+{
+    XableLanguage(lang,  sal::static_int_cast< char >( 0x0F ));
+}
+
+void SimpleGuesser::SetDBPath(const char* path, const char* prefix)
+{
+    if (h)
+        textcat_Done(h);
+    h = special_textcat_Init(path, prefix);
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/lingucomponent/source/languageguessing/simpleguesser.hxx b/lingucomponent/source/languageguessing/simpleguesser.hxx
new file mode 100644
index 0000000000..aec5442853
--- /dev/null
+++ b/lingucomponent/source/languageguessing/simpleguesser.hxx
@@ -0,0 +1,108 @@
+/* -*- 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_LINGUCOMPONENT_SOURCE_LANGUAGEGUESSING_SIMPLEGUESSER_HXX
+#define INCLUDED_LINGUCOMPONENT_SOURCE_LANGUAGEGUESSING_SIMPLEGUESSER_HXX
+
+#include <string>
+#include <vector>
+#include "guess.hxx"
+
+#define MAX_STRING_LENGTH_TO_ANALYSE 200
+
+class SimpleGuesser final
+{
+public:
+    /**inits the object with conf file "./conf.txt"*/
+    SimpleGuesser();
+
+    /**
+     * @param SimpleGuesser& sg the other guesser
+     */
+    SimpleGuesser& operator=(const SimpleGuesser& sg);
+
+    /**
+     * destroy the object
+     */
+    ~SimpleGuesser();
+
+    /**
+     * Analyze a text and return the most probable languages of the text
+     * @param char* text is the text to analyze
+     * @return the list of guess
+     */
+    std::vector<Guess> GuessLanguage(const char* text);
+
+    /**
+     * Analyze a text and return the most probable language of the text
+     * @param char* text is the text to analyze
+     * @return the guess (containing language)
+     */
+    Guess GuessPrimaryLanguage(const char* text);
+
+    /**
+     * List all available languages (possibly to be in guesses)
+     * @return the list of languages
+     */
+    std::vector<Guess> GetAvailableLanguages();
+
+    /**
+     * List all languages (possibly in guesses or not)
+     * @return the list of languages
+     */
+    std::vector<Guess> GetAllManagedLanguages();
+
+    /**
+     * List all Unavailable languages (disable for any reason)
+     * @return the list of languages
+     */
+    std::vector<Guess> GetUnavailableLanguages();
+
+    /**
+     * Mark a language enabled
+     * @param string lang the language to enable (build like language-COUNTRY-encoding)
+     */
+    void EnableLanguage(const std::string& lang);
+
+    /**
+     * Mark a language disabled
+     * @param string lang the language to disable (build like language-COUNTRY-encoding)
+     */
+    void DisableLanguage(const std::string& lang);
+
+    /**
+     * Load a new DB of fingerprints
+     * @param const char* thePathOfConfFile self explaining
+     * @param const char* prefix is the path where the directory which contains fingerprint files is stored
+    */
+    void SetDBPath(const char* thePathOfConfFile, const char* prefix);
+
+private:
+    //Where typical fingerprints (n-gram tables) are stored
+    void* h;
+
+    //Is used to select languages into the fingerprints DB, the mask is used to indicate if we want enabled disabled or both
+    std::vector<Guess> GetManagedLanguages(const char mask);
+
+    //Like getManagedLanguages, this function enable or disable a language and it depends of the mask
+    void XableLanguage(const std::string& lang, char mask);
+};
+
+#endif
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/lingucomponent/source/lingutil/lingutil.cxx b/lingucomponent/source/lingutil/lingutil.cxx
new file mode 100644
index 0000000000..c737698417
--- /dev/null
+++ b/lingucomponent/source/lingutil/lingutil.cxx
@@ -0,0 +1,314 @@
+/* -*- 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 .
+ */
+
+#if defined(_WIN32)
+#if !defined WIN32_LEAN_AND_MEAN
+# define WIN32_LEAN_AND_MEAN
+#endif
+#include <windows.h>
+#endif
+
+#include <osl/thread.h>
+#include <osl/file.hxx>
+#include <osl/process.h>
+#include <tools/debug.hxx>
+#include <tools/urlobj.hxx>
+#include <i18nlangtag/languagetag.hxx>
+#include <i18nlangtag/mslangid.hxx>
+#include <unotools/bootstrap.hxx>
+#include <unotools/lingucfg.hxx>
+#include <unotools/pathoptions.hxx>
+#include <rtl/bootstrap.hxx>
+#include <rtl/ustring.hxx>
+#include <rtl/string.hxx>
+#include <rtl/tencinfo.h>
+#include <linguistic/misc.hxx>
+
+#include <set>
+#include <vector>
+#include <string.h>
+
+#include "lingutil.hxx"
+
+#include <sal/macros.h>
+
+using namespace ::com::sun::star;
+
+#if defined(_WIN32)
+OString Win_AddLongPathPrefix( const OString &rPathName )
+{
+  constexpr OString WIN32_LONG_PATH_PREFIX = "\\\\?\\"_ostr;
+  if (!rPathName.match(WIN32_LONG_PATH_PREFIX)) return WIN32_LONG_PATH_PREFIX + rPathName;
+  return rPathName;
+}
+#endif //defined(_WIN32)
+
+#if defined SYSTEM_DICTS || defined IOS
+// find old style dictionaries in system directories
+static void GetOldStyleDicsInDir(
+    OUString const & aSystemDir, OUString const & aFormatName,
+    std::u16string_view aSystemSuffix, std::u16string_view aSystemPrefix,
+    std::set< OUString >& aDicLangInUse,
+    std::vector< SvtLinguConfigDictionaryEntry >& aRes )
+{
+    osl::Directory aSystemDicts(aSystemDir);
+    if (aSystemDicts.open() != osl::FileBase::E_None)
+        return;
+
+    osl::DirectoryItem aItem;
+    osl::FileStatus aFileStatus(osl_FileStatus_Mask_FileURL);
+    while (aSystemDicts.getNextItem(aItem) == osl::FileBase::E_None)
+    {
+        aItem.getFileStatus(aFileStatus);
+        OUString sPath = aFileStatus.getFileURL();
+        if (sPath.endsWith(aSystemSuffix))
+        {
+            sal_Int32 nStartIndex = sPath.lastIndexOf('/') + 1;
+            if (!sPath.match(aSystemPrefix, nStartIndex))
+                continue;
+            OUString sChunk = sPath.copy(nStartIndex + aSystemPrefix.size(),
+                sPath.getLength() - aSystemSuffix.size() -
+                nStartIndex - aSystemPrefix.size());
+            if (sChunk.isEmpty())
+                continue;
+
+            // We prefer (now) to use language tags.
+            // Avoid feeding in the older LANG_REGION scheme to the BCP47
+            // ctor as that triggers use of liblangtag and initializes its
+            // database which we do not want during startup. Convert
+            // instead.
+            sChunk = sChunk.replace( '_', '-');
+
+            // There's a known exception to the rule, the dreaded
+            // hu_HU_u8.dic of the myspell-hu package, see
+            // http://packages.debian.org/search?arch=any&searchon=contents&keywords=hu_HU_u8.dic
+            // This was ignored because unknown in the old implementation,
+            // truncate to the known locale and either insert because hu_HU
+            // wasn't encountered yet, or skip because it was. It doesn't
+            // really matter because the proper new-style hu_HU dictionary
+            // will take precedence anyway if installed with a Hungarian
+            // languagepack. Again, this is only to not pull in all
+            // liblangtag and stuff during startup, the result would be
+            // !isValidBcp47() and the dictionary ignored.
+            if (sChunk == "hu-HU-u8")
+                sChunk = "hu-HU";
+
+            LanguageTag aLangTag(sChunk, true);
+            if (!aLangTag.isValidBcp47())
+                continue;
+
+            // Thus we first get the language of the dictionary
+            const OUString& aLocaleName(aLangTag.getBcp47());
+
+            if (aDicLangInUse.insert(aLocaleName).second)
+            {
+                // add the dictionary to the resulting vector
+                SvtLinguConfigDictionaryEntry aDicEntry;
+                aDicEntry.aLocations = { sPath };
+                aDicEntry.aFormatName = aFormatName;
+                if (aLocaleName == u"ar")
+                    aDicEntry.aLocaleNames = {
+                        aLocaleName,
+                        u"ar-AE"_ustr, u"ar-BH"_ustr, u"ar-DJ"_ustr, u"ar-DZ"_ustr, u"ar-EG"_ustr,
+                        u"ar-ER"_ustr, u"ar-IL"_ustr, u"ar-IQ"_ustr, u"ar-JO"_ustr, u"ar-KM"_ustr,
+                        u"ar-KW"_ustr, u"ar-LB"_ustr, u"ar-LY"_ustr, u"ar-MA"_ustr, u"ar-MR"_ustr,
+                        u"ar-OM"_ustr, u"ar-PS"_ustr, u"ar-QA"_ustr, u"ar-SA"_ustr, u"ar-SD"_ustr,
+                        u"ar-SO"_ustr, u"ar-SY"_ustr, u"ar-TD"_ustr, u"ar-TN"_ustr, u"ar-YE"_ustr
+                    };
+                else
+                    aDicEntry.aLocaleNames = { aLocaleName };
+                aRes.push_back( aDicEntry );
+            }
+        }
+    }
+}
+#endif
+
+// build list of old style dictionaries (not as extensions) to use.
+// User installed dictionaries (the ones residing in the user paths)
+// will get precedence over system installed ones for the same language.
+std::vector< SvtLinguConfigDictionaryEntry > GetOldStyleDics( const char *pDicType )
+{
+    std::vector< SvtLinguConfigDictionaryEntry > aRes;
+
+    if (!pDicType)
+        return aRes;
+
+    OUString aFormatName;
+    OUString aDicExtension;
+#if defined SYSTEM_DICTS || defined IOS
+    OUString aSystemDir;
+    OUString aSystemPrefix;
+    OUString aSystemSuffix;
+#endif
+    if (strcmp( pDicType, "DICT" ) == 0)
+    {
+        aFormatName     = "DICT_SPELL";
+        aDicExtension   = ".dic";
+#ifdef SYSTEM_DICTS
+        aSystemDir      = DICT_SYSTEM_DIR;
+        aSystemSuffix   = aDicExtension;
+#elif defined IOS
+        aSystemDir      = "$BRAND_BASE_DIR/share/spell";
+        rtl::Bootstrap::expandMacros(aSystemDir);
+        aSystemSuffix   = ".dic";
+#endif
+    }
+    else if (strcmp( pDicType, "HYPH" ) == 0)
+    {
+        aFormatName     = "DICT_HYPH";
+        aDicExtension   = ".dic";
+#ifdef SYSTEM_DICTS
+        aSystemDir      = HYPH_SYSTEM_DIR;
+        aSystemPrefix   = "hyph_";
+        aSystemSuffix   = aDicExtension;
+#endif
+    }
+    else if (strcmp( pDicType, "THES" ) == 0)
+    {
+        aFormatName     = "DICT_THES";
+        aDicExtension   = ".dat";
+#ifdef SYSTEM_DICTS
+        aSystemDir      = THES_SYSTEM_DIR;
+        aSystemPrefix   = "th_";
+        aSystemSuffix   = "_v2.dat";
+#elif defined IOS
+        aSystemDir      = "$BRAND_BASE_DIR/share/thes";
+        rtl::Bootstrap::expandMacros(aSystemDir);
+        aSystemPrefix   = "th_";
+        aSystemSuffix   = "_v2.dat";
+#endif
+    }
+
+    if (aFormatName.isEmpty() || aDicExtension.isEmpty())
+        return aRes;
+
+#if defined SYSTEM_DICTS || defined IOS
+    // set of languages to remember the language where it is already
+    // decided to make use of the dictionary.
+    std::set< OUString > aDicLangInUse;
+
+#ifndef IOS
+    // follow the hunspell tool's example and check DICPATH for preferred dictionaries
+    rtl_uString * pSearchPath = nullptr;
+    osl_getEnvironment(OUString("DICPATH").pData, &pSearchPath);
+
+    if (pSearchPath)
+    {
+        OUString aSearchPath(pSearchPath);
+        rtl_uString_release(pSearchPath);
+
+        sal_Int32 nIndex = 0;
+        do
+        {
+            OUString aSystem( aSearchPath.getToken(0, ':', nIndex) );
+            OUString aCWD;
+            OUString aRelative;
+            OUString aAbsolute;
+
+            if (!utl::Bootstrap::getProcessWorkingDir(aCWD))
+                continue;
+            if (osl::FileBase::getFileURLFromSystemPath(aSystem, aRelative)
+                    != osl::FileBase::E_None)
+                continue;
+            if (osl::FileBase::getAbsoluteFileURL(aCWD, aRelative, aAbsolute)
+                    != osl::FileBase::E_None)
+                continue;
+
+            // GetOldStyleDicsInDir will make sure the dictionary is the right
+            // type based on its prefix, that way hyphen, mythes and regular
+            // dictionaries can live in one directory
+            GetOldStyleDicsInDir(aAbsolute, aFormatName, aSystemSuffix,
+                aSystemPrefix, aDicLangInUse, aRes);
+        }
+        while (nIndex != -1);
+    }
+#endif
+
+    // load system directories last so that DICPATH prevails
+    GetOldStyleDicsInDir(aSystemDir, aFormatName, aSystemSuffix, aSystemPrefix,
+        aDicLangInUse, aRes);
+#endif
+
+    return aRes;
+}
+
+void MergeNewStyleDicsAndOldStyleDics(
+    std::vector< SvtLinguConfigDictionaryEntry > &rNewStyleDics,
+    const std::vector< SvtLinguConfigDictionaryEntry > &rOldStyleDics )
+{
+    // get list of languages supported by new style dictionaries
+    std::set< OUString > aNewStyleLanguages;
+    for (auto const& newStyleDic : rNewStyleDics)
+    {
+        const uno::Sequence< OUString > aLocaleNames(newStyleDic.aLocaleNames);
+        sal_Int32 nLocaleNames = aLocaleNames.getLength();
+        for (sal_Int32 k = 0;  k < nLocaleNames; ++k)
+        {
+            aNewStyleLanguages.insert( aLocaleNames[k] );
+        }
+    }
+
+    // now check all old style dictionaries if they will add a not yet
+    // added language. If so add them to the resulting vector
+    for (auto const& oldStyleDic : rOldStyleDics)
+    {
+        sal_Int32 nOldStyleDics = oldStyleDic.aLocaleNames.getLength();
+
+        // old style dics should only have one language listed...
+        DBG_ASSERT( nOldStyleDics, "old style dictionary with more than one language found!");
+        if (nOldStyleDics > 0)
+        {
+            if (linguistic::LinguIsUnspecified( oldStyleDic.aLocaleNames[0]))
+            {
+                OSL_FAIL( "old style dictionary with invalid language found!" );
+                continue;
+            }
+
+            // language not yet added?
+            if (aNewStyleLanguages.find( oldStyleDic.aLocaleNames[0] ) == aNewStyleLanguages.end())
+                rNewStyleDics.push_back(oldStyleDic);
+        }
+        else
+        {
+            OSL_FAIL( "old style dictionary with no language found!" );
+        }
+    }
+}
+
+rtl_TextEncoding getTextEncodingFromCharset(const char* pCharset)
+{
+    // default result: used to indicate that we failed to get the proper encoding
+    rtl_TextEncoding eRet = RTL_TEXTENCODING_DONTKNOW;
+
+    if (pCharset)
+    {
+        eRet = rtl_getTextEncodingFromMimeCharset(pCharset);
+        if (eRet == RTL_TEXTENCODING_DONTKNOW)
+            eRet = rtl_getTextEncodingFromUnixCharset(pCharset);
+        if (eRet == RTL_TEXTENCODING_DONTKNOW)
+        {
+            if (strcmp("ISCII-DEVANAGARI", pCharset) == 0)
+                eRet = RTL_TEXTENCODING_ISCII_DEVANAGARI;
+        }
+    }
+    return eRet;
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/lingucomponent/source/lingutil/lingutil.hxx b/lingucomponent/source/lingutil/lingutil.hxx
new file mode 100644
index 0000000000..687c414827
--- /dev/null
+++ b/lingucomponent/source/lingutil/lingutil.hxx
@@ -0,0 +1,55 @@
+/* -*- 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_LINGUCOMPONENT_SOURCE_LINGUTIL_LINGUTIL_HXX
+#define INCLUDED_LINGUCOMPONENT_SOURCE_LINGUTIL_LINGUTIL_HXX
+
+#include <rtl/string.hxx>
+
+#include <vector>
+
+#define OU2ENC(rtlOUString, rtlEncoding) \
+    OString((rtlOUString).getStr(), (rtlOUString).getLength(), \
+    rtlEncoding, RTL_UNICODETOTEXT_FLAGS_UNDEFINED_QUESTIONMARK)
+
+struct SvtLinguConfigDictionaryEntry;
+
+#if defined(_WIN32)
+
+// to be use to get a path name with long path prefix
+// under Windows for Hunspell, Hyphen and MyThes libraries
+OString Win_AddLongPathPrefix( const OString &rPathName );
+#endif
+
+
+// temporary function, to be removed when new style dictionaries
+// using configuration entries are fully implemented and provided
+std::vector< SvtLinguConfigDictionaryEntry > GetOldStyleDics( const char * pDicType );
+void MergeNewStyleDicsAndOldStyleDics( std::vector< SvtLinguConfigDictionaryEntry > &rNewStyleDics, const std::vector< SvtLinguConfigDictionaryEntry > &rOldStyleDics );
+
+//Find an encoding from a charset string, using
+//rtl_getTextEncodingFromMimeCharset and falling back to
+//rtl_getTextEncodingFromUnixCharset with the addition of
+//ISCII-DEVANAGARI. On failure will return final fallback of
+//RTL_TEXTENCODING_ISO_8859_1
+rtl_TextEncoding getTextEncodingFromCharset(const char* pCharset);
+
+#endif
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/lingucomponent/source/numbertext/numbertext.component b/lingucomponent/source/numbertext/numbertext.component
new file mode 100644
index 0000000000..c3277533b5
--- /dev/null
+++ b/lingucomponent/source/numbertext/numbertext.component
@@ -0,0 +1,26 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+ * 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 .
+ -->
+
+<component loader="com.sun.star.loader.SharedLibrary" environment="@CPPU_ENV@"
+    xmlns="http://openoffice.org/2010/uno-components">
+  <implementation name="com.sun.star.lingu2.NumberText"
+    constructor="lingucomponent_NumberText_get_implementation">
+    <service name="com.sun.star.linguistic2.NumberText"/>
+  </implementation>
+</component>
diff --git a/lingucomponent/source/numbertext/numbertext.cxx b/lingucomponent/source/numbertext/numbertext.cxx
new file mode 100644
index 0000000000..b87b2cc5fc
--- /dev/null
+++ b/lingucomponent/source/numbertext/numbertext.cxx
@@ -0,0 +1,168 @@
+/* -*- 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 <mutex>
+
+#include <osl/file.hxx>
+#include <tools/debug.hxx>
+#include <o3tl/char16_t2wchar_t.hxx>
+
+#include <sal/config.h>
+#include <cppuhelper/factory.hxx>
+#include <cppuhelper/implbase.hxx>
+#include <cppuhelper/supportsservice.hxx>
+
+#include <i18nlangtag/languagetag.hxx>
+#include <com/sun/star/lang/XServiceInfo.hpp>
+#include <com/sun/star/linguistic2/XNumberText.hpp>
+#include <unotools/pathoptions.hxx>
+#include <osl/thread.h>
+
+#include <Numbertext.hxx>
+
+using namespace ::osl;
+using namespace ::cppu;
+using namespace ::com::sun::star;
+using namespace ::com::sun::star::uno;
+using namespace ::com::sun::star::lang;
+using namespace ::com::sun::star::linguistic2;
+
+static std::mutex& GetNumberTextMutex()
+{
+    static std::mutex aMutex;
+    return aMutex;
+}
+
+namespace
+{
+class NumberText_Impl : public ::cppu::WeakImplHelper<XNumberText, XServiceInfo>
+{
+    Numbertext m_aNumberText;
+    bool m_bInitialized;
+
+    virtual ~NumberText_Impl() override {}
+    void EnsureInitialized();
+
+public:
+    NumberText_Impl();
+    NumberText_Impl(const NumberText_Impl&) = delete;
+    NumberText_Impl& operator=(const NumberText_Impl&) = delete;
+
+    // XServiceInfo implementation
+    virtual OUString SAL_CALL getImplementationName() override;
+    virtual sal_Bool SAL_CALL supportsService(const OUString& ServiceName) override;
+    virtual Sequence<OUString> SAL_CALL getSupportedServiceNames() override;
+
+    // XNumberText implementation
+    virtual OUString SAL_CALL getNumberText(const OUString& aText,
+                                            const ::css::lang::Locale& rLocale) override;
+    virtual css::uno::Sequence<css::lang::Locale> SAL_CALL getAvailableLanguages() override;
+};
+}
+
+NumberText_Impl::NumberText_Impl()
+    : m_bInitialized(false)
+{
+}
+
+void NumberText_Impl::EnsureInitialized()
+{
+    if (m_bInitialized)
+        return;
+
+    // set this to true at the very start to prevent loops because of
+    // implicitly called functions below
+    m_bInitialized = true;
+
+    // set default numbertext path to where those get installed
+    OUString aPhysPath;
+    OUString aURL(SvtPathOptions().GetNumbertextPath());
+    osl::FileBase::getSystemPathFromFileURL(aURL, aPhysPath);
+#ifdef _WIN32
+    aPhysPath += "\\";
+    const rtl_TextEncoding eEnc = RTL_TEXTENCODING_UTF8;
+#else
+    aPhysPath += "/";
+    const rtl_TextEncoding eEnc = osl_getThreadTextEncoding();
+#endif
+    OString path = OUStringToOString(aPhysPath, eEnc);
+    m_aNumberText.set_prefix(std::string(path));
+}
+
+OUString SAL_CALL NumberText_Impl::getNumberText(const OUString& rText, const Locale& rLocale)
+{
+    std::scoped_lock aGuard(GetNumberTextMutex());
+    EnsureInitialized();
+    // libnumbertext supports Language + Country tags (separated by "_" or "-")
+    LanguageTag aLanguageTag(rLocale);
+    OUString aCode(aLanguageTag.getLanguage());
+    OUString aCountry(aLanguageTag.getCountry());
+    OUString aScript(aLanguageTag.getScript());
+    if (!aScript.isEmpty())
+        aCode += "-" + aScript;
+    if (!aCountry.isEmpty())
+        aCode += "-" + aCountry;
+    OString aLangCode(OUStringToOString(aCode, RTL_TEXTENCODING_ASCII_US));
+#if defined(_WIN32)
+    std::wstring sResult(o3tl::toW(rText.getStr()));
+#else
+    OString aInput(OUStringToOString(rText, RTL_TEXTENCODING_UTF8));
+    std::wstring sResult = Numbertext::string2wstring(std::string(aInput));
+#endif
+    bool result = m_aNumberText.numbertext(sResult, std::string(aLangCode));
+    DBG_ASSERT(result, "numbertext: false");
+#if defined(_WIN32)
+    OUString aResult(o3tl::toU(sResult));
+#else
+    OUString aResult = OUString::fromUtf8(Numbertext::wstring2string(sResult));
+#endif
+    return aResult;
+}
+
+uno::Sequence<Locale> SAL_CALL NumberText_Impl::getAvailableLanguages()
+{
+    std::scoped_lock aGuard(GetNumberTextMutex());
+    // TODO
+    Sequence<css::lang::Locale> aRes;
+    return aRes;
+}
+
+OUString SAL_CALL NumberText_Impl::getImplementationName()
+{
+    return "com.sun.star.lingu2.NumberText";
+}
+
+sal_Bool SAL_CALL NumberText_Impl::supportsService(const OUString& ServiceName)
+{
+    return cppu::supportsService(this, ServiceName);
+}
+
+Sequence<OUString> SAL_CALL NumberText_Impl::getSupportedServiceNames()
+{
+    return { "com.sun.star.linguistic2.NumberText" };
+}
+
+extern "C" SAL_DLLPUBLIC_EXPORT css::uno::XInterface*
+lingucomponent_NumberText_get_implementation(css::uno::XComponentContext*,
+                                             css::uno::Sequence<css::uno::Any> const&)
+{
+    return cppu::acquire(new NumberText_Impl());
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/lingucomponent/source/spellcheck/languagetool/LanguageTool.component b/lingucomponent/source/spellcheck/languagetool/LanguageTool.component
new file mode 100644
index 0000000000..9f7eb3d087
--- /dev/null
+++ b/lingucomponent/source/spellcheck/languagetool/LanguageTool.component
@@ -0,0 +1,26 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+ * 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 .
+ -->
+
+<component loader="com.sun.star.loader.SharedLibrary" environment="@CPPU_ENV@"
+    xmlns="http://openoffice.org/2010/uno-components">
+  <implementation name="org.openoffice.lingu.LanguageToolGrammarChecker"
+    constructor="lingucomponent_LanguageToolGrammarChecker_get_implementation" single-instance="true">
+    <service name="com.sun.star.linguistic2.Proofreader"/>
+  </implementation>
+</component>
diff --git a/lingucomponent/source/spellcheck/languagetool/languagetoolimp.cxx b/lingucomponent/source/spellcheck/languagetool/languagetoolimp.cxx
new file mode 100644
index 0000000000..fe912cb6b3
--- /dev/null
+++ b/lingucomponent/source/spellcheck/languagetool/languagetoolimp.cxx
@@ -0,0 +1,519 @@
+/* -*- 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 <config_version.h>
+
+#include <cppuhelper/factory.hxx>
+#include <cppuhelper/supportsservice.hxx>
+#include <cppuhelper/weak.hxx>
+#include "languagetoolimp.hxx"
+
+#include <i18nlangtag/languagetag.hxx>
+#include <svtools/strings.hrc>
+#include <unotools/resmgr.hxx>
+
+#include <vector>
+#include <set>
+#include <string.h>
+
+#include <officecfg/Office/Linguistic.hxx>
+
+#include <curl/curl.h>
+#include <boost/property_tree/ptree.hpp>
+#include <boost/property_tree/json_parser.hpp>
+#include <algorithm>
+#include <string_view>
+
+#include <systools/curlinit.hxx>
+
+#include <sal/log.hxx>
+#include <tools/color.hxx>
+#include <tools/long.hxx>
+#include <com/sun/star/text/TextMarkupType.hpp>
+#include <com/sun/star/uno/Any.hxx>
+#include <comphelper/propertyvalue.hxx>
+#include <unotools/lingucfg.hxx>
+#include <osl/mutex.hxx>
+#include <rtl/uri.hxx>
+
+using namespace com::sun::star;
+using namespace com::sun::star::beans;
+using namespace com::sun::star::lang;
+using namespace com::sun::star::linguistic2;
+
+constexpr OUStringLiteral sDuden = u"duden";
+
+namespace
+{
+constexpr size_t MAX_SUGGESTIONS_SIZE = 10;
+using LanguageToolCfg = officecfg::Office::Linguistic::GrammarChecking::LanguageTool;
+
+PropertyValue lcl_GetLineColorPropertyFromErrorId(const std::string& rErrorId)
+{
+    Color aColor;
+    if (rErrorId == "TYPOS" || rErrorId == "orth")
+    {
+        aColor = COL_LIGHTRED;
+    }
+    else if (rErrorId == "STYLE")
+    {
+        aColor = COL_LIGHTBLUE;
+    }
+    else
+    {
+        // Same color is used for other errorId's such as GRAMMAR, TYPOGRAPHY..
+        constexpr Color COL_ORANGE(0xD1, 0x68, 0x20);
+        aColor = COL_ORANGE;
+    }
+    return comphelper::makePropertyValue("LineColor", aColor);
+}
+
+OString encodeTextForLT(const OUString& text)
+{
+    // Let's be a bit conservative. I don't find a good description what needs encoding (and in
+    // which way) at https://languagetool.org/http-api/; the "Try it out!" function shows that
+    // different cases are handled differently by the demo; some percent-encode the UTF-8
+    // representation, like %D0%90 (for cyrillic А); some turn into entities like &#33; (for
+    // exclamation mark !); some other to things like \u0027 (for apostrophe '). So only keep
+    // RFC 3986's "Unreserved Characters" set unencoded, use UTF-8 percent-encoding for the rest.
+    static constexpr auto myCharClass = rtl::createUriCharClass(
+        u8"-._~0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz");
+    return OUStringToOString(
+        rtl::Uri::encode(text, myCharClass.data(), rtl_UriEncodeStrict, RTL_TEXTENCODING_UTF8),
+        RTL_TEXTENCODING_ASCII_US);
+}
+
+// Callback to get the response data from server.
+size_t WriteCallback(void* ptr, size_t size, size_t nmemb, void* userp)
+{
+    if (!userp)
+        return 0;
+
+    std::string* response = static_cast<std::string*>(userp);
+    size_t real_size = size * nmemb;
+    response->append(static_cast<char*>(ptr), real_size);
+    return real_size;
+}
+
+enum class HTTP_METHOD
+{
+    HTTP_GET,
+    HTTP_POST
+};
+
+std::string makeHttpRequest_impl(std::u16string_view aURL, HTTP_METHOD method,
+                                 const OString& aPostData, curl_slist* pHttpHeader,
+                                 tools::Long& nStatusCode)
+{
+    struct curl_cleanup_t
+    {
+        void operator()(CURL* p) const { curl_easy_cleanup(p); }
+    };
+    std::unique_ptr<CURL, curl_cleanup_t> curl(curl_easy_init());
+    if (!curl)
+    {
+        SAL_WARN("languagetool", "CURL initialization failed");
+        return {}; // empty string
+    }
+
+    ::InitCurl_easy(curl.get());
+
+    OString aURL8 = OUStringToOString(aURL, RTL_TEXTENCODING_UTF8);
+    (void)curl_easy_setopt(curl.get(), CURLOPT_HTTPHEADER, pHttpHeader);
+    (void)curl_easy_setopt(curl.get(), CURLOPT_FAILONERROR, 1L);
+    (void)curl_easy_setopt(curl.get(), CURLOPT_URL, aURL8.getStr());
+    (void)curl_easy_setopt(curl.get(), CURLOPT_TIMEOUT, 10L);
+    // (void)curl_easy_setopt(curl.get(), CURLOPT_VERBOSE, 1L);
+
+    std::string response_body;
+    (void)curl_easy_setopt(curl.get(), CURLOPT_WRITEFUNCTION, WriteCallback);
+    (void)curl_easy_setopt(curl.get(), CURLOPT_WRITEDATA, &response_body);
+
+    // allow unknown or self-signed certificates
+    if (!LanguageToolCfg::SSLCertVerify::get())
+    {
+        (void)curl_easy_setopt(curl.get(), CURLOPT_SSL_VERIFYPEER, false);
+        (void)curl_easy_setopt(curl.get(), CURLOPT_SSL_VERIFYHOST, false);
+    }
+
+    if (method == HTTP_METHOD::HTTP_POST)
+    {
+        (void)curl_easy_setopt(curl.get(), CURLOPT_POST, 1L);
+        (void)curl_easy_setopt(curl.get(), CURLOPT_POSTFIELDS, aPostData.getStr());
+    }
+
+    CURLcode cc = curl_easy_perform(curl.get());
+    if (cc != CURLE_OK)
+    {
+        SAL_WARN("languagetool",
+                 "CURL request returned with error: " << static_cast<sal_Int32>(cc));
+    }
+
+    curl_easy_getinfo(curl.get(), CURLINFO_RESPONSE_CODE, &nStatusCode);
+    return response_body;
+}
+
+std::string makeDudenHttpRequest(std::u16string_view aURL, const OString& aPostData,
+                                 tools::Long& nStatusCode)
+{
+    struct curl_slist* pList = nullptr;
+    OString sAccessToken
+        = OUStringToOString(LanguageToolCfg::ApiKey::get().value_or(""), RTL_TEXTENCODING_UTF8);
+
+    pList = curl_slist_append(pList, "Cache-Control: no-cache");
+    pList = curl_slist_append(pList, "Content-Type: application/json");
+    if (!sAccessToken.isEmpty())
+    {
+        sAccessToken = "access_token: " + sAccessToken;
+        pList = curl_slist_append(pList, sAccessToken.getStr());
+    }
+
+    return makeHttpRequest_impl(aURL, HTTP_METHOD::HTTP_POST, aPostData, pList, nStatusCode);
+}
+
+std::string makeHttpRequest(std::u16string_view aURL, HTTP_METHOD method, const OString& aPostData,
+                            tools::Long& nStatusCode)
+{
+    OString realPostData(aPostData);
+    if (method == HTTP_METHOD::HTTP_POST)
+    {
+        OString apiKey
+            = OUStringToOString(LanguageToolCfg::ApiKey::get().value_or(""), RTL_TEXTENCODING_UTF8);
+        OUString username = LanguageToolCfg::Username::get().value_or("");
+        if (!apiKey.isEmpty() && !username.isEmpty())
+            realPostData += "&username=" + encodeTextForLT(username) + "&apiKey=" + apiKey;
+    }
+
+    return makeHttpRequest_impl(aURL, method, realPostData, nullptr, nStatusCode);
+}
+
+template <typename Func>
+uno::Sequence<SingleProofreadingError> parseJson(std::string&& json, std::string path, Func f)
+{
+    std::stringstream aStream(std::move(json)); // Optimized in C++20
+    boost::property_tree::ptree aRoot;
+    boost::property_tree::read_json(aStream, aRoot);
+
+    if (auto tree = aRoot.get_child_optional(path))
+    {
+        uno::Sequence<SingleProofreadingError> aErrors(tree->size());
+        auto it = tree->begin();
+        for (auto& rError : asNonConstRange(aErrors))
+        {
+            f(it->second, rError);
+            it++;
+        }
+        return aErrors;
+    }
+    return {};
+}
+
+void parseDudenResponse(ProofreadingResult& rResult, std::string&& aJSONBody)
+{
+    rResult.aErrors = parseJson(
+        std::move(aJSONBody), "check-positions",
+        [](const boost::property_tree::ptree& rPos, SingleProofreadingError& rError) {
+            rError.nErrorStart = rPos.get<int>("offset", 0);
+            rError.nErrorLength = rPos.get<int>("length", 0);
+            rError.nErrorType = text::TextMarkupType::PROOFREADING;
+            //rError.aShortComment = ??
+            //rError.aFullComment = ??
+            const std::string sType = rPos.get<std::string>("type", {});
+            rError.aProperties = { lcl_GetLineColorPropertyFromErrorId(sType) };
+
+            const auto proposals = rPos.get_child_optional("proposals");
+            if (!proposals)
+                return;
+            rError.aSuggestions.realloc(std::min(proposals->size(), MAX_SUGGESTIONS_SIZE));
+            auto itProp = proposals->begin();
+            for (auto& rSuggestion : asNonConstRange(rError.aSuggestions))
+            {
+                rSuggestion = OStringToOUString(itProp->second.data(), RTL_TEXTENCODING_UTF8);
+                itProp++;
+            }
+        });
+}
+
+/*
+    rResult is both input and output
+    aJSONBody is the response body from the HTTP Request to LanguageTool API
+*/
+void parseProofreadingJSONResponse(ProofreadingResult& rResult, std::string&& aJSONBody)
+{
+    rResult.aErrors = parseJson(
+        std::move(aJSONBody), "matches",
+        [](const boost::property_tree::ptree& match, SingleProofreadingError& rError) {
+            rError.nErrorStart = match.get<int>("offset", 0);
+            rError.nErrorLength = match.get<int>("length", 0);
+            rError.nErrorType = text::TextMarkupType::PROOFREADING;
+            const std::string shortMessage = match.get<std::string>("message", {});
+            const std::string message = match.get<std::string>("shortMessage", {});
+
+            rError.aShortComment = OStringToOUString(shortMessage, RTL_TEXTENCODING_UTF8);
+            rError.aFullComment = OStringToOUString(message, RTL_TEXTENCODING_UTF8);
+
+            // Parse the error category for Line Color
+            std::string errorCategoryId;
+            if (auto rule = match.get_child_optional("rule"))
+                if (auto ruleCategory = rule->get_child_optional("category"))
+                    errorCategoryId = ruleCategory->get<std::string>("id", {});
+            rError.aProperties = { lcl_GetLineColorPropertyFromErrorId(errorCategoryId) };
+
+            const auto replacements = match.get_child_optional("replacements");
+            if (!replacements)
+                return;
+            // Limit suggestions to avoid crash on context menu popup:
+            // (soffice:17251): Gdk-CRITICAL **: 17:00:21.277: ../../../../../gdk/wayland/gdkdisplay-wayland.c:1399: Unable to create Cairo image
+            // surface: invalid value (typically too big) for the size of the input (surface, pattern, etc.)
+            rError.aSuggestions.realloc(std::min(replacements->size(), MAX_SUGGESTIONS_SIZE));
+            auto itRep = replacements->begin();
+            for (auto& rSuggestion : asNonConstRange(rError.aSuggestions))
+            {
+                std::string replacementStr = itRep->second.get<std::string>("value", {});
+                rSuggestion = OStringToOUString(replacementStr, RTL_TEXTENCODING_UTF8);
+                itRep++;
+            }
+        });
+}
+
+OUString getCheckerURL()
+{
+    if (auto oURL = LanguageToolCfg::BaseURL::get())
+        if (!oURL->isEmpty())
+            return *oURL + "/check";
+    return {};
+}
+}
+
+LanguageToolGrammarChecker::LanguageToolGrammarChecker()
+    : mCachedResults(10)
+{
+}
+
+LanguageToolGrammarChecker::~LanguageToolGrammarChecker() {}
+
+sal_Bool SAL_CALL LanguageToolGrammarChecker::isSpellChecker() { return false; }
+
+sal_Bool SAL_CALL LanguageToolGrammarChecker::hasLocale(const Locale& rLocale)
+{
+    if (!m_aSuppLocales.hasElements())
+        getLocales();
+
+    for (auto const& suppLocale : std::as_const(m_aSuppLocales))
+        if (rLocale == suppLocale)
+            return true;
+
+    SAL_INFO("languagetool", "No locale \"" << LanguageTag::convertToBcp47(rLocale, false) << "\"");
+    return false;
+}
+
+uno::Sequence<Locale> SAL_CALL LanguageToolGrammarChecker::getLocales()
+{
+    osl::MutexGuard aGuard(linguistic::GetLinguMutex());
+
+    if (m_aSuppLocales.hasElements())
+        return m_aSuppLocales;
+
+    if (!LanguageToolCfg::IsEnabled::get())
+        return m_aSuppLocales;
+
+    SvtLinguConfig aLinguCfg;
+    uno::Sequence<OUString> aLocaleList;
+
+    if (LanguageToolCfg::RestProtocol::get().value_or("") == sDuden)
+    {
+        aLocaleList.realloc(3);
+        aLocaleList.getArray()[0] = "de-DE";
+        aLocaleList.getArray()[1] = "en-US";
+        aLocaleList.getArray()[2] = "en-GB";
+    }
+    else
+        aLinguCfg.GetLocaleListFor("GrammarCheckers",
+                                   "org.openoffice.lingu.LanguageToolGrammarChecker", aLocaleList);
+
+    auto nLength = aLocaleList.getLength();
+    m_aSuppLocales.realloc(nLength);
+    auto pArray = m_aSuppLocales.getArray();
+    auto pLocaleList = aLocaleList.getArray();
+
+    for (auto i = 0; i < nLength; i++)
+    {
+        pArray[i] = LanguageTag::convertToLocale(pLocaleList[i]);
+    }
+
+    return m_aSuppLocales;
+}
+
+ProofreadingResult SAL_CALL LanguageToolGrammarChecker::doProofreading(
+    const OUString& aDocumentIdentifier, const OUString& aText, const Locale& aLocale,
+    sal_Int32 nStartOfSentencePosition, sal_Int32 nSuggestedBehindEndOfSentencePosition,
+    const uno::Sequence<PropertyValue>& aProperties)
+{
+    // ProofreadingResult declared here instead of parseHttpJSONResponse because of the early exists.
+    ProofreadingResult xRes;
+    xRes.aDocumentIdentifier = aDocumentIdentifier;
+    xRes.aText = aText;
+    xRes.aLocale = aLocale;
+    xRes.nStartOfSentencePosition = nStartOfSentencePosition;
+    xRes.nBehindEndOfSentencePosition = nSuggestedBehindEndOfSentencePosition;
+    xRes.aProperties = {};
+    xRes.xProofreader = this;
+    xRes.aErrors = {};
+
+    if (aText.isEmpty())
+    {
+        return xRes;
+    }
+
+    if (nStartOfSentencePosition != 0)
+    {
+        return xRes;
+    }
+
+    xRes.nStartOfNextSentencePosition = aText.getLength();
+
+    if (!LanguageToolCfg::IsEnabled::get())
+    {
+        return xRes;
+    }
+
+    OUString checkerURL = getCheckerURL();
+    if (checkerURL.isEmpty())
+    {
+        return xRes;
+    }
+
+    if (aProperties.getLength() > 0 && aProperties[0].Name == "Update")
+    {
+        // locale changed
+        xRes.aText = "";
+        return xRes;
+    }
+
+    sal_Int32 spaceIndex = std::min(xRes.nStartOfNextSentencePosition, aText.getLength() - 1);
+    while (spaceIndex < aText.getLength() && aText[spaceIndex] == ' ')
+    {
+        xRes.nStartOfNextSentencePosition += 1;
+        spaceIndex = xRes.nStartOfNextSentencePosition;
+    }
+    if (xRes.nStartOfNextSentencePosition == nSuggestedBehindEndOfSentencePosition
+        && spaceIndex < aText.getLength())
+    {
+        xRes.nStartOfNextSentencePosition
+            = std::min(nSuggestedBehindEndOfSentencePosition + 1, aText.getLength());
+    }
+    xRes.nBehindEndOfSentencePosition
+        = std::min(xRes.nStartOfNextSentencePosition, aText.getLength());
+
+    OString langTag(LanguageTag::convertToBcp47(aLocale, false).toUtf8());
+    OString postData;
+    const bool bDudenProtocol = LanguageToolCfg::RestProtocol::get().value_or("") == "duden";
+    if (bDudenProtocol)
+    {
+        std::stringstream aStream;
+        boost::property_tree::ptree aTree;
+        aTree.put("text-language", langTag.getStr());
+        aTree.put("text", aText.toUtf8()); // We don't encode the text in Duden Corrector tool case.
+        aTree.put("hyphenation", false);
+        aTree.put("spellchecking-level", 3);
+        aTree.put("correction-proposals", true);
+        boost::property_tree::write_json(aStream, aTree);
+        postData = OString(aStream.str());
+    }
+    else
+    {
+        postData = "text=" + encodeTextForLT(aText) + "&language=" + langTag;
+    }
+
+    if (auto cachedResult = mCachedResults.find(postData); cachedResult != mCachedResults.end())
+    {
+        xRes.aErrors = cachedResult->second;
+        return xRes;
+    }
+
+    tools::Long http_code = 0;
+    std::string response_body;
+    if (bDudenProtocol)
+        response_body = makeDudenHttpRequest(checkerURL, postData, http_code);
+    else
+        response_body = makeHttpRequest(checkerURL, HTTP_METHOD::HTTP_POST, postData, http_code);
+
+    if (http_code != 200)
+    {
+        return xRes;
+    }
+
+    if (response_body.length() <= 0)
+    {
+        return xRes;
+    }
+
+    if (bDudenProtocol)
+    {
+        parseDudenResponse(xRes, std::move(response_body));
+    }
+    else
+    {
+        parseProofreadingJSONResponse(xRes, std::move(response_body));
+    }
+    // cache the result
+    mCachedResults.insert(std::make_pair(postData, xRes.aErrors));
+    return xRes;
+}
+
+void SAL_CALL LanguageToolGrammarChecker::ignoreRule(const OUString& /*aRuleIdentifier*/,
+                                                     const Locale& /*aLocale*/
+)
+{
+}
+void SAL_CALL LanguageToolGrammarChecker::resetIgnoreRules() {}
+
+OUString SAL_CALL LanguageToolGrammarChecker::getServiceDisplayName(const Locale& rLocale)
+{
+    std::locale loc(Translate::Create("svt", LanguageTag(rLocale)));
+    return Translate::get(STR_DESCRIPTION_LANGUAGETOOL, loc);
+}
+
+OUString SAL_CALL LanguageToolGrammarChecker::getImplementationName()
+{
+    return "org.openoffice.lingu.LanguageToolGrammarChecker";
+}
+
+sal_Bool SAL_CALL LanguageToolGrammarChecker::supportsService(const OUString& ServiceName)
+{
+    return cppu::supportsService(this, ServiceName);
+}
+
+uno::Sequence<OUString> SAL_CALL LanguageToolGrammarChecker::getSupportedServiceNames()
+{
+    return { SN_GRAMMARCHECKER };
+}
+
+void SAL_CALL LanguageToolGrammarChecker::initialize(const uno::Sequence<uno::Any>&) {}
+
+extern "C" SAL_DLLPUBLIC_EXPORT css::uno::XInterface*
+lingucomponent_LanguageToolGrammarChecker_get_implementation(
+    css::uno::XComponentContext*, css::uno::Sequence<css::uno::Any> const&)
+{
+    return cppu::acquire(new LanguageToolGrammarChecker());
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab cinoptions=b1,g0,N-s cinkeys+=0=break: */
diff --git a/lingucomponent/source/spellcheck/languagetool/languagetoolimp.hxx b/lingucomponent/source/spellcheck/languagetool/languagetoolimp.hxx
new file mode 100644
index 0000000000..93d2c84c61
--- /dev/null
+++ b/lingucomponent/source/spellcheck/languagetool/languagetoolimp.hxx
@@ -0,0 +1,75 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+#pragma once
+#include <com/sun/star/lang/XInitialization.hpp>
+#include <com/sun/star/lang/XServiceDisplayName.hpp>
+#include <com/sun/star/lang/XServiceInfo.hpp>
+#include <com/sun/star/lang/XServiceName.hpp>
+#include <com/sun/star/linguistic2/XProofreader.hpp>
+#include <com/sun/star/linguistic2/ProofreadingResult.hpp>
+#include <com/sun/star/beans/XPropertySet.hpp>
+#include <com/sun/star/beans/PropertyValues.hpp>
+#include <linguistic/misc.hxx>
+#include <string_view>
+#include <o3tl/lru_map.hxx>
+#include <tools/long.hxx>
+
+class LanguageToolGrammarChecker
+    : public cppu::WeakImplHelper<css::linguistic2::XProofreader, css::lang::XInitialization,
+                                  css::lang::XServiceInfo, css::lang::XServiceDisplayName>
+{
+    css::uno::Sequence<css::lang::Locale> m_aSuppLocales;
+    o3tl::lru_map<OString, css::uno::Sequence<css::linguistic2::SingleProofreadingError>>
+        mCachedResults;
+    LanguageToolGrammarChecker(const LanguageToolGrammarChecker&) = delete;
+    LanguageToolGrammarChecker& operator=(const LanguageToolGrammarChecker&) = delete;
+
+public:
+    LanguageToolGrammarChecker();
+    virtual ~LanguageToolGrammarChecker() override;
+
+    // XSupportedLocales
+    virtual css::uno::Sequence<css::lang::Locale> SAL_CALL getLocales() override;
+    virtual sal_Bool SAL_CALL hasLocale(const css::lang::Locale& rLocale) override;
+
+    // XProofReader
+    virtual sal_Bool SAL_CALL isSpellChecker() override;
+    virtual css::linguistic2::ProofreadingResult SAL_CALL
+    doProofreading(const OUString& aDocumentIdentifier, const OUString& aText,
+                   const css::lang::Locale& aLocale, sal_Int32 nStartOfSentencePosition,
+                   sal_Int32 nSuggestedBehindEndOfSentencePosition,
+                   const css::uno::Sequence<css::beans::PropertyValue>& aProperties) override;
+
+    virtual void SAL_CALL ignoreRule(const OUString& aRuleIdentifier,
+                                     const css::lang::Locale& aLocale) override;
+    virtual void SAL_CALL resetIgnoreRules() override;
+
+    // XServiceDisplayName
+    virtual OUString SAL_CALL getServiceDisplayName(const css::lang::Locale& rLocale) override;
+
+    // XInitialization
+    virtual void SAL_CALL initialize(const css::uno::Sequence<css::uno::Any>& rArguments) override;
+
+    // XServiceInfo
+    virtual OUString SAL_CALL getImplementationName() override;
+    virtual sal_Bool SAL_CALL supportsService(const OUString& rServiceName) override;
+    virtual css::uno::Sequence<OUString> SAL_CALL getSupportedServiceNames() override;
+};
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab cinoptions=b1,g0,N-s cinkeys+=0=break: */
diff --git a/lingucomponent/source/spellcheck/macosxspell/MacOSXSpell.component b/lingucomponent/source/spellcheck/macosxspell/MacOSXSpell.component
new file mode 100644
index 0000000000..b1fe7d612a
--- /dev/null
+++ b/lingucomponent/source/spellcheck/macosxspell/MacOSXSpell.component
@@ -0,0 +1,26 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+ * 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 .
+ -->
+
+<component loader="com.sun.star.loader.SharedLibrary" environment="@CPPU_ENV@"
+    xmlns="http://openoffice.org/2010/uno-components">
+  <implementation name="org.openoffice.lingu.MacOSXSpellChecker"
+    constructor="lingucomponent_MacSpellChecker_get_implementation" single-instance="true">
+    <service name="com.sun.star.linguistic2.SpellChecker"/>
+  </implementation>
+</component>
diff --git a/lingucomponent/source/spellcheck/macosxspell/macspellimp.hxx b/lingucomponent/source/spellcheck/macosxspell/macspellimp.hxx
new file mode 100644
index 0000000000..776c474d21
--- /dev/null
+++ b/lingucomponent/source/spellcheck/macosxspell/macspellimp.hxx
@@ -0,0 +1,123 @@
+/* -*- 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_LINGUCOMPONENT_SOURCE_SPELLCHECK_MACOSXSPELL_MACSPELLIMP_HXX
+#define INCLUDED_LINGUCOMPONENT_SOURCE_SPELLCHECK_MACOSXSPELL_MACSPELLIMP_HXX
+
+#include <comphelper/interfacecontainer3.hxx>
+#include <cppuhelper/implbase.hxx>
+
+#include <premac.h>
+#ifdef MACOSX
+#import <Cocoa/Cocoa.h>
+#else
+#include <UIKit/UIKit.h>
+#endif
+#include <postmac.h>
+#include <com/sun/star/lang/XComponent.hpp>
+#include <com/sun/star/lang/XInitialization.hpp>
+#include <com/sun/star/lang/XServiceDisplayName.hpp>
+#include <com/sun/star/beans/XPropertySet.hpp>
+#include <com/sun/star/lang/XServiceInfo.hpp>
+#include <com/sun/star/linguistic2/XSpellChecker.hpp>
+#include <com/sun/star/linguistic2/XLinguServiceEventBroadcaster.hpp>
+
+#include <linguistic/misc.hxx>
+#include <linguistic/lngprophelp.hxx>
+
+#include <lingutil.hxx>
+
+using namespace ::com::sun::star::uno;
+using namespace ::com::sun::star::beans;
+using namespace ::com::sun::star::lang;
+using namespace ::com::sun::star::linguistic2;
+
+class MacSpellChecker :
+    public cppu::WeakImplHelper
+    <
+        XSpellChecker,
+        XLinguServiceEventBroadcaster,
+        XInitialization,
+        XComponent,
+        XServiceInfo,
+        XServiceDisplayName
+    >
+{
+    Sequence< Locale >      aSuppLocales;
+    rtl_TextEncoding *      aDEncs;
+    Locale *                aDLocs;
+    OUString *              aDNames;
+    sal_Int32               numdict;
+#ifdef MACOSX
+    int                     macTag;   // unique tag for this doc
+#else
+    UITextChecker *         pChecker;
+#endif
+    ::comphelper::OInterfaceContainerHelper3<XEventListener> aEvtListeners;
+    rtl::Reference< linguistic::PropertyHelper_Spell >    xPropHelper;
+    bool                                    bDisposing;
+
+    MacSpellChecker(const MacSpellChecker &) = delete;
+    MacSpellChecker & operator = (const MacSpellChecker &) = delete;
+
+    linguistic::PropertyHelper_Spell &  GetPropHelper_Impl();
+    linguistic::PropertyHelper_Spell &  GetPropHelper()
+    {
+        return xPropHelper.is() ? *xPropHelper : GetPropHelper_Impl();
+    }
+
+    sal_Int16   GetSpellFailure( const OUString &rWord, const Locale &rLocale );
+    Reference< XSpellAlternatives > GetProposals( const OUString &rWord, const Locale &rLocale );
+
+public:
+    MacSpellChecker();
+    virtual ~MacSpellChecker() override;
+
+    // XSupportedLocales (for XSpellChecker)
+    virtual Sequence< Locale > SAL_CALL getLocales() override;
+    virtual sal_Bool SAL_CALL hasLocale( const Locale& rLocale ) override;
+
+    // XSpellChecker
+    virtual sal_Bool SAL_CALL isValid( const OUString& rWord, const Locale& rLocale, const css::uno::Sequence<PropertyValue>& rProperties ) override;
+    virtual Reference< XSpellAlternatives > SAL_CALL spell( const OUString& rWord, const Locale& rLocale, const css::uno::Sequence<PropertyValue>& rProperties ) override;
+
+    // XLinguServiceEventBroadcaster
+    virtual sal_Bool SAL_CALL addLinguServiceEventListener( const Reference< XLinguServiceEventListener >& rxLstnr ) override;
+    virtual sal_Bool SAL_CALL removeLinguServiceEventListener( const Reference< XLinguServiceEventListener >& rxLstnr ) override;
+
+    // XServiceDisplayName
+    virtual OUString SAL_CALL getServiceDisplayName( const Locale& rLocale ) override;
+
+    // XInitialization
+    virtual void SAL_CALL initialize( const Sequence< Any >& rArguments ) override;
+
+    // XComponent
+    virtual void SAL_CALL dispose() override;
+    virtual void SAL_CALL addEventListener( const Reference< XEventListener >& rxListener ) override;
+    virtual void SAL_CALL removeEventListener( const Reference< XEventListener >& rxListener ) override;
+
+    // XServiceInfo
+    virtual OUString SAL_CALL getImplementationName() override;
+    virtual sal_Bool SAL_CALL supportsService( const OUString& rServiceName ) override;
+    virtual Sequence< OUString > SAL_CALL getSupportedServiceNames() override;
+};
+
+#endif
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/lingucomponent/source/spellcheck/macosxspell/macspellimp.mm b/lingucomponent/source/spellcheck/macosxspell/macspellimp.mm
new file mode 100644
index 0000000000..448870e912
--- /dev/null
+++ b/lingucomponent/source/spellcheck/macosxspell/macspellimp.mm
@@ -0,0 +1,678 @@
+/* -*- 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 .
+ */
+
+#include <com/sun/star/uno/Reference.h>
+
+#include <com/sun/star/linguistic2/SpellFailure.hpp>
+#include <com/sun/star/linguistic2/XLinguProperties.hpp>
+#include <cppuhelper/factory.hxx>
+#include <cppuhelper/supportsservice.hxx>
+#include <cppuhelper/weak.hxx>
+#include <com/sun/star/registry/XRegistryKey.hpp>
+#include <com/sun/star/lang/XSingleServiceFactory.hpp>
+#include <tools/debug.hxx>
+#include <osl/mutex.hxx>
+
+#include "macspellimp.hxx"
+
+#include <linguistic/spelldta.hxx>
+#include <unotools/pathoptions.hxx>
+#include <unotools/useroptions.hxx>
+#include <osl/file.hxx>
+#include <rtl/ref.hxx>
+#include <rtl/ustrbuf.hxx>
+
+using namespace utl;
+using namespace osl;
+using namespace com::sun::star;
+using namespace com::sun::star::beans;
+using namespace com::sun::star::lang;
+using namespace com::sun::star::uno;
+using namespace com::sun::star::linguistic2;
+using namespace linguistic;
+
+MacSpellChecker::MacSpellChecker() :
+    aEvtListeners( GetLinguMutex() )
+{
+    aDEncs = nullptr;
+    aDLocs = nullptr;
+    aDNames = nullptr;
+    bDisposing = false;
+    numdict = 0;
+#ifndef IOS
+    NSApplicationLoad();
+    NSAutoreleasePool* pool = [[NSAutoreleasePool alloc] init];
+    macTag = [NSSpellChecker uniqueSpellDocumentTag];
+    [pool release];
+#else
+    pChecker = [[UITextChecker alloc] init];
+#endif
+}
+
+
+MacSpellChecker::~MacSpellChecker()
+{
+  numdict = 0;
+  if (aDEncs) delete[] aDEncs;
+  aDEncs = nullptr;
+  if (aDLocs) delete[] aDLocs;
+  aDLocs = nullptr;
+  if (aDNames) delete[] aDNames;
+  aDNames = nullptr;
+  if (xPropHelper.is())
+     xPropHelper->RemoveAsPropListener();
+}
+
+
+PropertyHelper_Spell & MacSpellChecker::GetPropHelper_Impl()
+{
+    if (!xPropHelper.is())
+    {
+        Reference< XLinguProperties >   xPropSet( GetLinguProperties() );
+
+        xPropHelper = new PropertyHelper_Spell( static_cast<XSpellChecker *>(this), xPropSet );
+        xPropHelper->AddAsPropListener();
+    }
+    return *xPropHelper;
+}
+
+
+Sequence< Locale > SAL_CALL MacSpellChecker::getLocales()
+{
+    MutexGuard  aGuard( GetLinguMutex() );
+
+    // this routine should return the locales supported by the installed
+    // dictionaries.  So here we need to parse both the user edited
+    // dictionary list and the shared dictionary list
+    // to see what dictionaries the admin/user has installed
+
+    int numshr;          // number of shared dictionary entries
+    rtl_TextEncoding aEnc = RTL_TEXTENCODING_UTF8;
+
+    std::vector<NSString *> postspdict;
+
+    if (!numdict) {
+
+        // invoke a dictionary manager to get the user dictionary list
+        // TODO How on macOS?
+
+        // invoke a second  dictionary manager to get the shared dictionary list
+#ifdef MACOSX
+        NSArray *aSpellCheckLanguages = [[NSSpellChecker sharedSpellChecker] availableLanguages];
+#else
+        NSArray *aSpellCheckLanguages = [UITextChecker availableLanguages];
+#endif
+
+        for (NSUInteger i = 0; i < [aSpellCheckLanguages count]; i++)
+        {
+            NSString* pLangStr = static_cast<NSString*>([aSpellCheckLanguages objectAtIndex:i]);
+
+            // Fix up generic languages (without territory code) and odd combinations that LO
+            // doesn't handle.
+            if ([pLangStr isEqualToString:@"ar"])
+            {
+                const std::vector<NSString*> aAR
+                    { @"AE", @"BH", @"DJ", @"DZ", @"EG", @"ER", @"IL", @"IQ", @"JO",
+                      @"KM", @"KW", @"LB", @"LY", @"MA", @"MR", @"OM", @"PS", @"QA",
+                      @"SA", @"SD", @"SO", @"SY", @"TD", @"TN", @"YE" };
+                for (auto c: aAR)
+                {
+                    pLangStr = [@"ar_" stringByAppendingString: c];
+                    postspdict.push_back( pLangStr );
+                }
+            }
+            else if ([pLangStr isEqualToString:@"da"])
+            {
+                postspdict.push_back( @"da_DK" );
+            }
+            else if ([pLangStr isEqualToString:@"de"])
+            {
+                // Not de_CH and de_LI, though. They need separate dictionaries.
+                const std::vector<NSString*> aDE
+                    { @"AT", @"BE", @"DE", @"LU" };
+                for (auto c: aDE)
+                {
+                    pLangStr = [@"de_" stringByAppendingString: c];
+                    postspdict.push_back( pLangStr );
+                }
+            }
+#ifdef IOS
+            // iOS says it has specifically de_DE. Let's assume it is good enough for German as
+            // written in Austria, Belgium, and Luxembourg, too. (Not for German in Switzerland and
+            // Liechtenstein. For those you need to bundle the myspell dictionary.)
+            else if ([pLangStr isEqualToString:@"de_DE"])
+            {
+                const std::vector<NSString*> aDE
+                    { @"AT", @"BE", @"DE", @"LU" };
+                for (auto c: aDE)
+                {
+                    pLangStr = [@"de_" stringByAppendingString: c];
+                    postspdict.push_back( pLangStr );
+                }
+            }
+#endif
+            else if ([pLangStr isEqualToString:@"en"])
+            {
+                // System has en_AU, en_CA, en_GB, and en_IN. Add the rest.
+                const std::vector<NSString*> aEN
+                    { @"BW", @"BZ", @"GH", @"GM", @"IE", @"JM", @"MU", @"MW", @"MY", @"NA",
+                      @"NZ", @"PH", @"TT", @"US", @"ZA", @"ZW" };
+                for (auto c: aEN)
+                {
+                    pLangStr = [@"en_" stringByAppendingString: c];
+                    postspdict.push_back( pLangStr );
+                }
+            }
+            else if ([pLangStr isEqualToString:@"en_JP"]
+                     || [pLangStr isEqualToString:@"en_SG"])
+            {
+                // Just skip, LO doesn't have those yet in this context.
+            }
+            else if ([pLangStr isEqualToString:@"es"])
+            {
+                const std::vector<NSString*> aES
+                    { @"AR", @"BO", @"CL", @"CO", @"CR", @"CU", @"DO", @"EC", @"ES", @"GT",
+                      @"HN", @"MX", @"NI", @"PA", @"PE", @"PR", @"PY", @"SV", @"UY", @"VE" };
+                for (auto c: aES)
+                {
+                    pLangStr = [@"es_" stringByAppendingString: c];
+                    postspdict.push_back( pLangStr );
+                }
+            }
+            else if ([pLangStr isEqualToString:@"fi"])
+            {
+                postspdict.push_back( @"fi_FI" );
+            }
+            else if ([pLangStr isEqualToString:@"fr"])
+            {
+                const std::vector<NSString*> aFR
+                    { @"BE", @"BF", @"BJ", @"CA", @"CH", @"CI", @"FR", @"LU", @"MC", @"ML",
+                      @"MU", @"NE", @"SN", @"TG" };
+                for (auto c: aFR)
+                {
+                    pLangStr = [@"fr_" stringByAppendingString: c];
+                    postspdict.push_back( pLangStr );
+                }
+            }
+#ifdef IOS
+            else if ([pLangStr isEqualToString:@"fr_FR"])
+            {
+                const std::vector<NSString*> aFR
+                    { @"BE", @"BF", @"BJ", @"CA", @"CH", @"CI", @"FR", @"LU", @"MC", @"ML",
+                      @"MU", @"NE", @"SN", @"TG" };
+                for (auto c: aFR)
+                {
+                    pLangStr = [@"fr_" stringByAppendingString: c];
+                    postspdict.push_back( pLangStr );
+                }
+            }
+#endif
+            else if ([pLangStr isEqualToString:@"it"])
+            {
+                postspdict.push_back( @"it_CH" );
+                postspdict.push_back( @"it_IT" );
+            }
+#ifdef IOS
+            else if ([pLangStr isEqualToString:@"it_IT"])
+            {
+                const std::vector<NSString*> aIT
+                    { @"CH", @"IT" };
+                for (auto c: aIT)
+                {
+                    pLangStr = [@"it_" stringByAppendingString: c];
+                    postspdict.push_back( pLangStr );
+                }
+            }
+#endif
+            else if ([pLangStr isEqualToString:@"ko"])
+            {
+                postspdict.push_back( @"ko_KR" );
+            }
+            else if ([pLangStr isEqualToString:@"nl"])
+            {
+                postspdict.push_back( @"nl_BE" );
+                postspdict.push_back( @"nl_NL" );
+            }
+            else if ([pLangStr isEqualToString:@"nb"])
+            {
+                postspdict.push_back( @"nb_NO" );
+            }
+            else if ([pLangStr isEqualToString:@"pl"])
+            {
+                postspdict.push_back( @"pl_PL" );
+            }
+            else if ([pLangStr isEqualToString:@"ru"])
+            {
+                postspdict.push_back( @"ru_RU" );
+            }
+            else if ([pLangStr isEqualToString:@"sv"])
+            {
+                postspdict.push_back( @"sv_FI" );
+                postspdict.push_back( @"sv_SE" );
+            }
+#ifdef IOS
+            else if ([pLangStr isEqualToString:@"sv_SE"])
+            {
+                postspdict.push_back( @"sv_FI" );
+                postspdict.push_back( @"sv_SE" );
+            }
+#endif
+            else if ([pLangStr isEqualToString:@"tr"])
+            {
+                postspdict.push_back( @"tr_TR" );
+            }
+            else
+                postspdict.push_back( pLangStr );
+        }
+        // System has pt_BR and pt_PT, add pt_AO.
+        postspdict.push_back( @"pt_AO" );
+
+        numshr = postspdict.size();
+
+        // we really should merge these and remove duplicates but since
+        // users can name their dictionaries anything they want it would
+        // be impossible to know if a real duplication exists unless we
+        // add some unique key to each myspell dictionary
+        numdict = numshr;
+
+        if (numdict) {
+            aDLocs = new Locale [numdict];
+            aDEncs  = new rtl_TextEncoding [numdict];
+            aDNames = new OUString [numdict];
+            aSuppLocales.realloc(numdict);
+            Locale * pLocale = aSuppLocales.getArray();
+            int numlocs = 0;
+            int newloc;
+            int i,j;
+            int k = 0;
+
+            //first add the user dictionaries
+            //TODO for MAC?
+
+            // now add the shared dictionaries
+            for (i = 0; i < numshr; i++) {
+                NSDictionary *aLocDict = [ NSLocale componentsFromLocaleIdentifier:postspdict[i] ];
+                NSString* aLang = [ aLocDict objectForKey:NSLocaleLanguageCode ];
+                NSString* aCountry = [ aLocDict objectForKey:NSLocaleCountryCode ];
+                OUString lang([aLang cStringUsingEncoding: NSUTF8StringEncoding], [aLang length], aEnc);
+                OUString country([ aCountry cStringUsingEncoding: NSUTF8StringEncoding], [aCountry length], aEnc);
+                Locale nLoc( lang, country, OUString() );
+                newloc = 1;
+                //eliminate duplicates (is this needed for MacOS?)
+                for (j = 0; j < numlocs; j++) {
+                    if (nLoc == pLocale[j]) newloc = 0;
+                }
+                if (newloc) {
+                    pLocale[numlocs] = nLoc;
+                    numlocs++;
+                }
+                aDLocs[k] = nLoc;
+                aDEncs[k] = 0;
+                k++;
+            }
+
+            aSuppLocales.realloc(numlocs);
+
+        } else {
+            /* no dictionary.lst found so register no dictionaries */
+            numdict = 0;
+            aDEncs  = nullptr;
+            aDLocs = nullptr;
+            aDNames = nullptr;
+            aSuppLocales.realloc(0);
+        }
+    }
+
+    return aSuppLocales;
+}
+
+
+
+sal_Bool SAL_CALL MacSpellChecker::hasLocale(const Locale& rLocale)
+{
+    MutexGuard  aGuard( GetLinguMutex() );
+
+    bool bRes = false;
+    if (!aSuppLocales.getLength())
+        getLocales();
+
+    sal_Int32 nLen = aSuppLocales.getLength();
+    for (sal_Int32 i = 0;  i < nLen;  ++i)
+    {
+        const Locale *pLocale = aSuppLocales.getConstArray();
+        if (rLocale == pLocale[i])
+        {
+            bRes = true;
+            break;
+        }
+    }
+    return bRes;
+}
+
+
+sal_Int16 MacSpellChecker::GetSpellFailure( const OUString &rWord, const Locale &rLocale )
+{
+    // initialize a myspell object for each dictionary once
+        // (note: mutex is held higher up in isValid)
+
+
+    sal_Int16 nRes = -1;
+
+    // first handle smart quotes both single and double
+    OUStringBuffer rBuf(rWord);
+    sal_Int32 n = rBuf.getLength();
+    sal_Unicode c;
+    for (sal_Int32 ix=0; ix < n; ix++) {
+        c = rBuf[ix];
+        if ((c == 0x201C) || (c == 0x201D)) rBuf[ix] = u'"';
+        if ((c == 0x2018) || (c == 0x2019)) rBuf[ix] = u'\'';
+    }
+    OUString nWord(rBuf.makeStringAndClear());
+
+    if (n)
+    {
+        NSAutoreleasePool* pool = [[NSAutoreleasePool alloc] init];
+        NSString* aNSStr = [[[NSString alloc] initWithCharacters: reinterpret_cast<unichar const *>(nWord.getStr()) length: nWord.getLength()]autorelease];
+        NSString* aLang = [[[NSString alloc] initWithCharacters: reinterpret_cast<unichar const *>(rLocale.Language.getStr()) length: rLocale.Language.getLength()]autorelease];
+        if(rLocale.Country.getLength()>0)
+        {
+            NSString* aCountry = [[[NSString alloc] initWithCharacters: reinterpret_cast<unichar const *>(rLocale.Country.getStr()) length: rLocale.Country.getLength()]autorelease];
+            NSString* aTaggedCountry = [@"_" stringByAppendingString:aCountry];
+            aLang = [aLang  stringByAppendingString:aTaggedCountry];
+        }
+
+#ifdef MACOSX
+        NSInteger aCount;
+        NSRange range = [[NSSpellChecker sharedSpellChecker] checkSpellingOfString:aNSStr startingAt:0 language:aLang wrap:false inSpellDocumentWithTag:macTag wordCount:&aCount];
+#else
+        NSRange range = [pChecker rangeOfMisspelledWordInString:aNSStr range:NSMakeRange(0, [aNSStr length]) startingAt:0 wrap:NO language:aLang];
+#endif
+        int rVal = 0;
+        if(range.length>0)
+        {
+            rVal = -1;
+        }
+        else
+        {
+            rVal = 1;
+        }
+        [pool release];
+        if (rVal != 1)
+        {
+            nRes = SpellFailure::SPELLING_ERROR;
+        } else {
+            return -1;
+        }
+    }
+    return nRes;
+}
+
+
+
+sal_Bool SAL_CALL
+    MacSpellChecker::isValid( const OUString& rWord, const Locale& rLocale,
+            const css::uno::Sequence<PropertyValue>& rProperties )
+{
+    MutexGuard  aGuard( GetLinguMutex() );
+
+    if (rLocale == Locale()  ||  !rWord.getLength())
+        return true;
+
+    if (!hasLocale( rLocale ))
+        return true;
+
+    // Get property values to be used.
+    // These are be the default values set in the SN_LINGU_PROPERTIES
+    // PropertySet which are overridden by the supplied ones from the
+    // last argument.
+    // You'll probably like to use a simpler solution than the provided
+    // one using the PropertyHelper_Spell.
+
+    PropertyHelper_Spell &rHelper = GetPropHelper();
+    rHelper.SetTmpPropVals( rProperties );
+
+    sal_Int16 nFailure = GetSpellFailure( rWord, rLocale );
+    if (nFailure != -1)
+    {
+        LanguageType nLang = LinguLocaleToLanguage( rLocale );
+        // postprocess result for errors that should be ignored
+        if (   (!rHelper.IsSpellUpperCase()  && IsUpper( rWord, nLang ))
+            || (!rHelper.IsSpellWithDigits() && HasDigits( rWord ))
+            || (!rHelper.IsSpellCapitalization()
+                &&  nFailure == SpellFailure::CAPTION_ERROR)
+        )
+            nFailure = -1;
+    }
+
+    return (nFailure == -1);
+}
+
+Reference< XSpellAlternatives >
+    MacSpellChecker::GetProposals( const OUString &rWord, const Locale &rLocale )
+{
+    // Retrieves the return values for the 'spell' function call in case
+    // of a misspelled word.
+    // Especially it may give a list of suggested (correct) words:
+
+    Reference< XSpellAlternatives > xRes;
+        // note: mutex is held by higher up by spell which covers both
+
+    LanguageType nLang = LinguLocaleToLanguage( rLocale );
+    int count;
+    Sequence< OUString > aStr( 0 );
+
+        // first handle smart quotes (single and double)
+    OUStringBuffer rBuf(rWord);
+    sal_Int32 n = rBuf.getLength();
+    sal_Unicode c;
+    for (sal_Int32 ix=0; ix < n; ix++) {
+         c = rBuf[ix];
+         if ((c == 0x201C) || (c == 0x201D)) rBuf[ix] = u'"';
+         if ((c == 0x2018) || (c == 0x2019)) rBuf[ix] = u'\'';
+    }
+    OUString nWord(rBuf.makeStringAndClear());
+
+    if (n)
+    {
+        NSAutoreleasePool* pool = [[NSAutoreleasePool alloc] init];
+        NSString* aNSStr = [[[NSString alloc] initWithCharacters: reinterpret_cast<unichar const *>(nWord.getStr()) length: nWord.getLength()]autorelease];
+        NSString* aLang = [[[NSString alloc] initWithCharacters: reinterpret_cast<unichar const *>(rLocale.Language.getStr()) length: rLocale.Language.getLength()]autorelease];
+        if(rLocale.Country.getLength()>0)
+        {
+            NSString* aCountry = [[[NSString alloc] initWithCharacters: reinterpret_cast<unichar const *>(rLocale.Country.getStr()) length: rLocale.Country.getLength()]autorelease];
+            NSString* aTaggedCountry = [@"_" stringByAppendingString:aCountry];
+            aLang = [aLang  stringByAppendingString:aTaggedCountry];
+        }
+#ifdef MACOSX
+        [[NSSpellChecker sharedSpellChecker] setLanguage:aLang];
+        NSArray *guesses = [[NSSpellChecker sharedSpellChecker] guessesForWordRange:NSMakeRange(0, [aNSStr length]) inString:aNSStr language:aLang inSpellDocumentWithTag:0];
+        (void) this; // avoid loplugin:staticmethods, the !MACOSX case uses 'this'
+#else
+        NSArray *guesses = [pChecker guessesForWordRange:NSMakeRange(0, [aNSStr length]) inString:aNSStr language:aLang];
+#endif
+        count = [guesses count];
+        if (count)
+        {
+           aStr.realloc( count );
+           OUString *pStr = aStr.getArray();
+           for (int ii=0; ii < count; ii++)
+           {
+                  // if needed add: if (suglst[ii] == NULL) continue;
+                  NSString* guess = [guesses objectAtIndex:ii];
+                  OUString cvtwrd(reinterpret_cast<const sal_Unicode*>([guess cStringUsingEncoding:NSUnicodeStringEncoding]), static_cast<sal_Int32>([guess length]));
+                  pStr[ii] = cvtwrd;
+           }
+        }
+        [pool release];
+    }
+
+    // now return an empty alternative for no suggestions or the list of alternatives if some found
+    rtl::Reference<SpellAlternatives> pAlt = new SpellAlternatives;
+    pAlt->SetWordLanguage( rWord, nLang );
+    pAlt->SetFailureType( SpellFailure::SPELLING_ERROR );
+    pAlt->SetAlternatives( aStr );
+    xRes = pAlt;
+    return xRes;
+
+}
+
+Reference< XSpellAlternatives > SAL_CALL
+    MacSpellChecker::spell( const OUString& rWord, const Locale& rLocale,
+            const css::uno::Sequence<PropertyValue>& rProperties )
+{
+    MutexGuard  aGuard( GetLinguMutex() );
+
+    if (rLocale == Locale()  ||  !rWord.getLength())
+        return nullptr;
+
+    if (!hasLocale( rLocale ))
+        return nullptr;
+
+    Reference< XSpellAlternatives > xAlt;
+    if (!isValid( rWord, rLocale, rProperties ))
+    {
+        xAlt =  GetProposals( rWord, rLocale );
+    }
+    return xAlt;
+}
+
+sal_Bool SAL_CALL
+    MacSpellChecker::addLinguServiceEventListener(
+            const Reference< XLinguServiceEventListener >& rxLstnr )
+{
+    MutexGuard  aGuard( GetLinguMutex() );
+
+    bool bRes = false;
+    if (!bDisposing && rxLstnr.is())
+    {
+        bRes = GetPropHelper().addLinguServiceEventListener( rxLstnr );
+    }
+    return bRes;
+}
+
+
+sal_Bool SAL_CALL
+    MacSpellChecker::removeLinguServiceEventListener(
+            const Reference< XLinguServiceEventListener >& rxLstnr )
+{
+    MutexGuard  aGuard( GetLinguMutex() );
+
+    bool bRes = false;
+    if (!bDisposing && rxLstnr.is())
+    {
+        DBG_ASSERT( xPropHelper.is(), "xPropHelper non existent" );
+        bRes = GetPropHelper().removeLinguServiceEventListener( rxLstnr );
+    }
+    return bRes;
+}
+
+
+OUString SAL_CALL
+    MacSpellChecker::getServiceDisplayName( const Locale& /*rLocale*/ )
+{
+    MutexGuard  aGuard( GetLinguMutex() );
+    return "macOS Spell Checker";
+}
+
+
+void SAL_CALL
+    MacSpellChecker::initialize( const Sequence< Any >& rArguments )
+{
+    MutexGuard  aGuard( GetLinguMutex() );
+
+    if (!xPropHelper.is())
+    {
+        sal_Int32 nLen = rArguments.getLength();
+        if (2 == nLen)
+        {
+            Reference< XLinguProperties >   xPropSet;
+            rArguments.getConstArray()[0] >>= xPropSet;
+            //rArguments.getConstArray()[1] >>= xDicList;
+
+            //! Pointer allows for access of the non-UNO functions.
+            //! And the reference to the UNO-functions while increasing
+            //! the ref-count and will implicitly free the memory
+            //! when the object is no longer used.
+            xPropHelper = new PropertyHelper_Spell( static_cast<XSpellChecker *>(this), xPropSet );
+            xPropHelper->AddAsPropListener();
+        }
+        else
+            OSL_FAIL( "wrong number of arguments in sequence" );
+
+    }
+}
+
+
+void SAL_CALL
+    MacSpellChecker::dispose()
+{
+    MutexGuard  aGuard( GetLinguMutex() );
+
+    if (!bDisposing)
+    {
+        bDisposing = true;
+        EventObject aEvtObj( static_cast<XSpellChecker *>(this) );
+        aEvtListeners.disposeAndClear( aEvtObj );
+    }
+}
+
+
+void SAL_CALL
+    MacSpellChecker::addEventListener( const Reference< XEventListener >& rxListener )
+{
+    MutexGuard  aGuard( GetLinguMutex() );
+
+    if (!bDisposing && rxListener.is())
+        aEvtListeners.addInterface( rxListener );
+}
+
+
+void SAL_CALL
+    MacSpellChecker::removeEventListener( const Reference< XEventListener >& rxListener )
+{
+    MutexGuard  aGuard( GetLinguMutex() );
+
+    if (!bDisposing && rxListener.is())
+        aEvtListeners.removeInterface( rxListener );
+}
+
+// Service specific part
+OUString SAL_CALL MacSpellChecker::getImplementationName()
+{
+    return "org.openoffice.lingu.MacOSXSpellChecker";
+}
+
+sal_Bool SAL_CALL MacSpellChecker::supportsService( const OUString& ServiceName )
+{
+    return cppu::supportsService(this, ServiceName);
+}
+
+Sequence< OUString > SAL_CALL MacSpellChecker::getSupportedServiceNames()
+{
+    return { SN_SPELLCHECKER };
+}
+
+extern "C" SAL_DLLPUBLIC_EXPORT css::uno::XInterface*
+lingucomponent_MacSpellChecker_get_implementation(
+    css::uno::XComponentContext* , css::uno::Sequence<css::uno::Any> const&)
+{
+    return cppu::acquire(new MacSpellChecker());
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/lingucomponent/source/spellcheck/spell/spell.component b/lingucomponent/source/spellcheck/spell/spell.component
new file mode 100644
index 0000000000..c284e13fc3
--- /dev/null
+++ b/lingucomponent/source/spellcheck/spell/spell.component
@@ -0,0 +1,26 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+ * 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 .
+ -->
+
+<component loader="com.sun.star.loader.SharedLibrary" environment="@CPPU_ENV@"
+    xmlns="http://openoffice.org/2010/uno-components">
+  <implementation name="org.openoffice.lingu.MySpellSpellChecker"
+    constructor="lingucomponent_SpellChecker_get_implementation" single-instance="true">
+    <service name="com.sun.star.linguistic2.SpellChecker"/>
+  </implementation>
+</component>
diff --git a/lingucomponent/source/spellcheck/spell/sspellimp.cxx b/lingucomponent/source/spellcheck/spell/sspellimp.cxx
new file mode 100644
index 0000000000..193ddb2c32
--- /dev/null
+++ b/lingucomponent/source/spellcheck/spell/sspellimp.cxx
@@ -0,0 +1,648 @@
+/* -*- 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 <com/sun/star/uno/Reference.h>
+
+#include <com/sun/star/linguistic2/SpellFailure.hpp>
+#include <com/sun/star/linguistic2/XLinguProperties.hpp>
+#include <comphelper/lok.hxx>
+#include <comphelper/processfactory.hxx>
+#include <cppuhelper/supportsservice.hxx>
+#include <cppuhelper/weak.hxx>
+#include <com/sun/star/lang/XMultiServiceFactory.hpp>
+#include <tools/debug.hxx>
+#include <osl/mutex.hxx>
+#include <osl/thread.h>
+#include <com/sun/star/ucb/XSimpleFileAccess.hpp>
+
+#include <lingutil.hxx>
+#include <hunspell.hxx>
+#include "sspellimp.hxx"
+
+#include <linguistic/misc.hxx>
+#include <linguistic/spelldta.hxx>
+#include <i18nlangtag/languagetag.hxx>
+#include <svtools/strings.hrc>
+#include <unotools/lingucfg.hxx>
+#include <unotools/resmgr.hxx>
+#include <osl/file.hxx>
+#include <rtl/ustrbuf.hxx>
+#include <rtl/textenc.h>
+#include <sal/log.hxx>
+
+#include <numeric>
+#include <utility>
+#include <vector>
+#include <set>
+#include <string.h>
+
+using namespace utl;
+using namespace osl;
+using namespace com::sun::star;
+using namespace com::sun::star::beans;
+using namespace com::sun::star::lang;
+using namespace com::sun::star::uno;
+using namespace com::sun::star::linguistic2;
+using namespace linguistic;
+
+// XML-header of SPELLML queries
+#if !defined SPELL_XML
+constexpr OUStringLiteral SPELL_XML = u"<?xml?>";
+#endif
+
+// only available in hunspell >= 1.5
+#if !defined MAXWORDLEN
+#define MAXWORDLEN 176
+#endif
+
+SpellChecker::SpellChecker() :
+    m_aEvtListeners(GetLinguMutex()),
+    m_bDisposing(false)
+{
+}
+
+SpellChecker::DictItem::DictItem(OUString i_DName, Locale i_DLoc, rtl_TextEncoding i_DEnc)
+    : m_aDName(std::move(i_DName))
+    , m_aDLoc(std::move(i_DLoc))
+    , m_aDEnc(i_DEnc)
+{
+}
+
+SpellChecker::~SpellChecker()
+{
+    if (m_pPropHelper)
+    {
+        m_pPropHelper->RemoveAsPropListener();
+    }
+}
+
+PropertyHelper_Spelling & SpellChecker::GetPropHelper_Impl()
+{
+    if (!m_pPropHelper)
+    {
+        Reference< XLinguProperties >   xPropSet = GetLinguProperties();
+
+        m_pPropHelper.reset( new PropertyHelper_Spelling( static_cast<XSpellChecker *>(this), xPropSet ) );
+        m_pPropHelper->AddAsPropListener();   //! after a reference is established
+    }
+    return *m_pPropHelper;
+}
+
+Sequence< Locale > SAL_CALL SpellChecker::getLocales()
+{
+    MutexGuard  aGuard( GetLinguMutex() );
+
+    // this routine should return the locales supported by the installed
+    // dictionaries.
+    if (m_DictItems.empty())
+    {
+        SvtLinguConfig aLinguCfg;
+
+        // get list of extension dictionaries-to-use
+        // (or better speaking: the list of dictionaries using the
+        // new configuration entries).
+        std::vector< SvtLinguConfigDictionaryEntry > aDics;
+        uno::Sequence< OUString > aFormatList;
+        aLinguCfg.GetSupportedDictionaryFormatsFor( "SpellCheckers",
+                "org.openoffice.lingu.MySpellSpellChecker", aFormatList );
+        for (auto const& format : std::as_const(aFormatList))
+        {
+            std::vector< SvtLinguConfigDictionaryEntry > aTmpDic(
+                    aLinguCfg.GetActiveDictionariesByFormat(format) );
+            aDics.insert( aDics.end(), aTmpDic.begin(), aTmpDic.end() );
+        }
+
+        //!! for compatibility with old dictionaries (the ones not using extensions
+        //!! or new configuration entries, but still using the dictionary.lst file)
+        //!! Get the list of old style spell checking dictionaries to use...
+        std::vector< SvtLinguConfigDictionaryEntry > aOldStyleDics(
+                GetOldStyleDics( "DICT" ) );
+
+        // to prefer dictionaries with configuration entries we will only
+        // use those old style dictionaries that add a language that
+        // is not yet supported by the list of new style dictionaries
+        MergeNewStyleDicsAndOldStyleDics( aDics, aOldStyleDics );
+
+        if (!aDics.empty())
+        {
+            uno::Reference< lang::XMultiServiceFactory > xServiceFactory(comphelper::getProcessServiceFactory());
+            uno::Reference< ucb::XSimpleFileAccess > xAccess(xServiceFactory->createInstance("com.sun.star.ucb.SimpleFileAccess"), uno::UNO_QUERY);
+            // get supported locales from the dictionaries-to-use...
+            std::set<OUString> aLocaleNamesSet;
+            for (auto const& dict : aDics)
+            {
+                const uno::Sequence< OUString > aLocaleNames( dict.aLocaleNames );
+                uno::Sequence< OUString > aLocations( dict.aLocations );
+                SAL_WARN_IF(
+                    aLocaleNames.hasElements() && !aLocations.hasElements(),
+                    "lingucomponent", "no locations");
+                if (aLocations.hasElements())
+                {
+                    if (xAccess.is() && xAccess->exists(aLocations[0]))
+                    {
+                        for (auto const& locale : aLocaleNames)
+                        {
+                            if (!comphelper::LibreOfficeKit::isAllowlistedLanguage(locale))
+                                continue;
+
+                            aLocaleNamesSet.insert(locale);
+                        }
+                    }
+                    else
+                    {
+                        SAL_WARN(
+                            "lingucomponent",
+                            "missing <" << aLocations[0] << ">");
+                    }
+                }
+            }
+            // ... and add them to the resulting sequence
+            m_aSuppLocales.realloc( aLocaleNamesSet.size() );
+            std::transform(
+                aLocaleNamesSet.begin(), aLocaleNamesSet.end(), m_aSuppLocales.getArray(),
+                [](auto const& localeName) { return LanguageTag::convertToLocale(localeName); });
+
+            //! For each dictionary and each locale we need a separate entry.
+            //! If this results in more than one dictionary per locale than (for now)
+            //! it is undefined which dictionary gets used.
+            //! In the future the implementation should support using several dictionaries
+            //! for one locale.
+            sal_uInt32 nDictSize = std::accumulate(aDics.begin(), aDics.end(), sal_uInt32(0),
+                [](const sal_uInt32 nSum, const SvtLinguConfigDictionaryEntry& dict) {
+                    return nSum + dict.aLocaleNames.getLength(); });
+
+            // add dictionary information
+            m_DictItems.reserve(nDictSize);
+            for (auto const& dict : aDics)
+            {
+                if (dict.aLocaleNames.hasElements() &&
+                    dict.aLocations.hasElements())
+                {
+                    const uno::Sequence< OUString > aLocaleNames( dict.aLocaleNames );
+
+                    // currently only one language per dictionary is supported in the actual implementation...
+                    // Thus here we work-around this by adding the same dictionary several times.
+                    // Once for each of its supported locales.
+                    for (auto const& localeName : aLocaleNames)
+                    {
+                        // also both files have to be in the same directory and the
+                        // file names must only differ in the extension (.aff/.dic).
+                        // Thus we use the first location only and strip the extension part.
+                        OUString aLocation = dict.aLocations[0];
+                        sal_Int32 nPos = aLocation.lastIndexOf( '.' );
+                        aLocation = aLocation.copy( 0, nPos );
+
+                        m_DictItems.emplace_back(aLocation, LanguageTag::convertToLocale(localeName), RTL_TEXTENCODING_DONTKNOW);
+                    }
+                }
+            }
+            DBG_ASSERT( nDictSize == m_DictItems.size(), "index mismatch?" );
+        }
+        else
+        {
+            // no dictionary found so register no dictionaries
+            m_aSuppLocales.realloc(0);
+        }
+    }
+
+    return m_aSuppLocales;
+}
+
+sal_Bool SAL_CALL SpellChecker::hasLocale(const Locale& rLocale)
+{
+    MutexGuard  aGuard( GetLinguMutex() );
+
+    bool bRes = false;
+    if (!m_aSuppLocales.hasElements())
+        getLocales();
+
+    for (auto const& suppLocale : std::as_const(m_aSuppLocales))
+    {
+        if (rLocale == suppLocale)
+        {
+            bRes = true;
+            break;
+        }
+    }
+    return bRes;
+}
+
+sal_Int16 SpellChecker::GetSpellFailure(const OUString &rWord, const Locale &rLocale, int& rInfo)
+{
+    if (rWord.getLength() > MAXWORDLEN)
+        return -1;
+
+    Hunspell * pMS = nullptr;
+    rtl_TextEncoding eEnc = RTL_TEXTENCODING_DONTKNOW;
+
+    // initialize a myspell object for each dictionary once
+    // (note: mutex is held higher up in isValid)
+
+    sal_Int16 nRes = -1;
+
+    // first handle smart quotes both single and double
+    OUStringBuffer rBuf(rWord);
+    sal_Int32 n = rBuf.getLength();
+    sal_Unicode c;
+    sal_Int32 extrachar = 0;
+
+    for (sal_Int32 ix=0; ix < n; ix++)
+    {
+        c = rBuf[ix];
+        if ((c == 0x201C) || (c == 0x201D))
+            rBuf[ix] = u'"';
+        else if ((c == 0x2018) || (c == 0x2019))
+            rBuf[ix] = u'\'';
+
+        // recognize words with Unicode ligatures and ZWNJ/ZWJ characters (only
+        // with 8-bit encoded dictionaries. For UTF-8 encoded dictionaries
+        // set ICONV and IGNORE aff file options, if needed.)
+        else if ((c == 0x200C) || (c == 0x200D) ||
+            ((c >= 0xFB00) && (c <= 0xFB04)))
+                extrachar = 1;
+    }
+    OUString nWord(rBuf.makeStringAndClear());
+
+    if (n)
+    {
+        for (auto& currDict : m_DictItems)
+        {
+            pMS = nullptr;
+            eEnc = RTL_TEXTENCODING_DONTKNOW;
+
+            if (rLocale == currDict.m_aDLoc)
+            {
+                if (!currDict.m_pDict)
+                {
+                    OUString dicpath = currDict.m_aDName + ".dic";
+                    OUString affpath = currDict.m_aDName + ".aff";
+                    OUString dict;
+                    OUString aff;
+                    osl::FileBase::getSystemPathFromFileURL(dicpath,dict);
+                    osl::FileBase::getSystemPathFromFileURL(affpath,aff);
+#if defined(_WIN32)
+                    // workaround for Windows specific problem that the
+                    // path length in calls to 'fopen' is limited to somewhat
+                    // about 120+ characters which will usually be exceed when
+                    // using dictionaries as extensions. (Hunspell waits UTF-8 encoded
+                    // path with \\?\ long path prefix.)
+                    OString aTmpaff = Win_AddLongPathPrefix(OUStringToOString(aff, RTL_TEXTENCODING_UTF8));
+                    OString aTmpdict = Win_AddLongPathPrefix(OUStringToOString(dict, RTL_TEXTENCODING_UTF8));
+#else
+                    OString aTmpaff(OU2ENC(aff,osl_getThreadTextEncoding()));
+                    OString aTmpdict(OU2ENC(dict,osl_getThreadTextEncoding()));
+#endif
+
+                    currDict.m_pDict = std::make_unique<Hunspell>(aTmpaff.getStr(),aTmpdict.getStr());
+#if defined(H_DEPRECATED)
+                    currDict.m_aDEnc = getTextEncodingFromCharset(currDict.m_pDict->get_dict_encoding().c_str());
+#else
+                    currDict.m_aDEnc = getTextEncodingFromCharset(currDict.m_pDict->get_dic_encoding());
+#endif
+                }
+                pMS  = currDict.m_pDict.get();
+                eEnc = currDict.m_aDEnc;
+            }
+
+            if (pMS)
+            {
+                // we don't want to work with a default text encoding since following incorrect
+                // results may occur only for specific text and thus may be hard to notice.
+                // Thus better always make a clean exit here if the text encoding is in question.
+                // Hopefully something not working at all will raise proper attention quickly. ;-)
+                DBG_ASSERT( eEnc != RTL_TEXTENCODING_DONTKNOW, "failed to get text encoding! (maybe incorrect encoding string in file)" );
+                if (eEnc == RTL_TEXTENCODING_DONTKNOW)
+                    return -1;
+
+                OString aWrd(OU2ENC(nWord,eEnc));
+#if defined(H_DEPRECATED)
+                bool bVal = pMS->spell(std::string(aWrd), &rInfo);
+#else
+                bool bVal = pMS->spell(aWrd.getStr(), &rInfo) != 0;
+#endif
+                if (!bVal) {
+                    if (extrachar && (eEnc != RTL_TEXTENCODING_UTF8)) {
+                        OUStringBuffer aBuf(nWord);
+                        n = aBuf.getLength();
+                        for (sal_Int32 ix=n-1; ix >= 0; ix--)
+                        {
+                          switch (aBuf[ix]) {
+                            case 0xFB00: aBuf.remove(ix, 1); aBuf.insert(ix, "ff"); break;
+                            case 0xFB01: aBuf.remove(ix, 1); aBuf.insert(ix, "fi"); break;
+                            case 0xFB02: aBuf.remove(ix, 1); aBuf.insert(ix, "fl"); break;
+                            case 0xFB03: aBuf.remove(ix, 1); aBuf.insert(ix, "ffi"); break;
+                            case 0xFB04: aBuf.remove(ix, 1); aBuf.insert(ix, "ffl"); break;
+                            case 0x200C:
+                            case 0x200D: aBuf.remove(ix, 1); break;
+                          }
+                        }
+                        OUString aWord(aBuf.makeStringAndClear());
+                        OString bWrd(OU2ENC(aWord, eEnc));
+#if defined(H_DEPRECATED)
+                        bVal = pMS->spell(std::string(bWrd), &rInfo);
+#else
+                        bVal = pMS->spell(bWrd.getStr(), &rInfo) != 0;
+#endif
+                        if (bVal) return -1;
+                    }
+                    nRes = SpellFailure::SPELLING_ERROR;
+                } else {
+                    return -1;
+                }
+                pMS = nullptr;
+            }
+        }
+    }
+
+    return nRes;
+}
+
+sal_Bool SAL_CALL SpellChecker::isValid( const OUString& rWord, const Locale& rLocale,
+            const css::uno::Sequence< css::beans::PropertyValue >& rProperties )
+{
+    MutexGuard  aGuard( GetLinguMutex() );
+
+    if (rLocale == Locale()  ||  rWord.isEmpty())
+        return true;
+
+    if (!hasLocale( rLocale ))
+        return true;
+
+    // return sal_False to process SPELLML requests (they are longer than the header)
+    if (rWord.match(SPELL_XML, 0) && (rWord.getLength() > 10)) return false;
+
+    // Get property values to be used.
+    // These are be the default values set in the SN_LINGU_PROPERTIES
+    // PropertySet which are overridden by the supplied ones from the
+    // last argument.
+    // You'll probably like to use a simpler solution than the provided
+    // one using the PropertyHelper_Spell.
+    PropertyHelper_Spelling& rHelper = GetPropHelper();
+    rHelper.SetTmpPropVals( rProperties );
+
+    int nInfo = 0;
+    sal_Int16 nFailure = GetSpellFailure( rWord, rLocale, nInfo );
+    if (nFailure != -1 && !rWord.match(SPELL_XML, 0))
+    {
+        LanguageType nLang = LinguLocaleToLanguage( rLocale );
+        // postprocess result for errors that should be ignored
+        const bool bIgnoreError =
+                (!rHelper.IsSpellUpperCase()  && IsUpper( rWord, nLang )) ||
+                (!rHelper.IsSpellWithDigits() && HasDigits( rWord )) ||
+                (!rHelper.IsSpellCapitalization()  &&  nFailure == SpellFailure::CAPTION_ERROR);
+        if (bIgnoreError)
+            nFailure = -1;
+    }
+//#define SPELL_COMPOUND 1 << 0
+
+    // valid word, but it's a rule-based compound word
+    if ( nFailure == -1 && (nInfo & SPELL_COMPOUND) )
+    {
+        bool bHasHyphen = rWord.indexOf('-') > -1;
+        if ( (bHasHyphen && !rHelper.IsSpellHyphenatedCompound()) ||
+             (!bHasHyphen && !rHelper.IsSpellClosedCompound()) )
+        {
+            return false;
+        }
+    }
+
+    return (nFailure == -1);
+}
+
+Reference< XSpellAlternatives >
+    SpellChecker::GetProposals( const OUString &rWord, const Locale &rLocale )
+{
+    // Retrieves the return values for the 'spell' function call in case
+    // of a misspelled word.
+    // Especially it may give a list of suggested (correct) words:
+    Reference< XSpellAlternatives > xRes;
+    // note: mutex is held by higher up by spell which covers both
+
+    Hunspell* pMS = nullptr;
+    rtl_TextEncoding eEnc = RTL_TEXTENCODING_DONTKNOW;
+
+    // first handle smart quotes (single and double)
+    OUStringBuffer rBuf(rWord);
+    sal_Int32 n = rBuf.getLength();
+    sal_Unicode c;
+    for (sal_Int32 ix=0; ix < n; ix++)
+    {
+        c = rBuf[ix];
+        if ((c == 0x201C) || (c == 0x201D))
+            rBuf[ix] = u'"';
+        if ((c == 0x2018) || (c == 0x2019))
+            rBuf[ix] = u'\'';
+    }
+    OUString nWord(rBuf.makeStringAndClear());
+
+    if (n)
+    {
+        LanguageType nLang = LinguLocaleToLanguage( rLocale );
+        int numsug = 0;
+
+        Sequence< OUString > aStr( 0 );
+        for (const auto& currDict : m_DictItems)
+        {
+            pMS = nullptr;
+            eEnc = RTL_TEXTENCODING_DONTKNOW;
+
+            if (rLocale == currDict.m_aDLoc)
+            {
+                pMS  = currDict.m_pDict.get();
+                eEnc = currDict.m_aDEnc;
+            }
+
+            if (pMS)
+            {
+                OString aWrd(OU2ENC(nWord,eEnc));
+#if defined(H_DEPRECATED)
+                std::vector<std::string> suglst = pMS->suggest(std::string(aWrd));
+                if (!suglst.empty())
+                {
+                    aStr.realloc(numsug + suglst.size());
+                    OUString *pStr = aStr.getArray();
+                    for (size_t ii = 0; ii < suglst.size(); ++ii)
+                    {
+                        OUString cvtwrd(suglst[ii].c_str(), suglst[ii].size(), eEnc);
+                        pStr[numsug + ii] = cvtwrd;
+                    }
+                    numsug += suglst.size();
+                }
+#else
+                char ** suglst = nullptr;
+                int count = pMS->suggest(&suglst, aWrd.getStr());
+                if (count)
+                {
+                    aStr.realloc( numsug + count );
+                    OUString *pStr = aStr.getArray();
+                    for (int ii=0; ii < count; ++ii)
+                    {
+                        OUString cvtwrd(suglst[ii],strlen(suglst[ii]),eEnc);
+                        pStr[numsug + ii] = cvtwrd;
+                    }
+                    numsug += count;
+                }
+                pMS->free_list(&suglst, count);
+#endif
+            }
+        }
+
+        // now return an empty alternative for no suggestions or the list of alternatives if some found
+        xRes = SpellAlternatives::CreateSpellAlternatives( rWord, nLang, SpellFailure::SPELLING_ERROR, aStr );
+        return xRes;
+    }
+    return xRes;
+}
+
+Reference< XSpellAlternatives > SAL_CALL SpellChecker::spell(
+        const OUString& rWord, const Locale& rLocale,
+        const css::uno::Sequence< css::beans::PropertyValue >& rProperties )
+{
+    MutexGuard  aGuard( GetLinguMutex() );
+
+    if (rLocale == Locale()  ||  rWord.isEmpty())
+        return nullptr;
+
+    if (!hasLocale( rLocale ))
+        return nullptr;
+
+    Reference< XSpellAlternatives > xAlt;
+    if (!isValid( rWord, rLocale, rProperties ))
+    {
+        xAlt =  GetProposals( rWord, rLocale );
+    }
+    return xAlt;
+}
+
+sal_Bool SAL_CALL SpellChecker::addLinguServiceEventListener(
+        const Reference< XLinguServiceEventListener >& rxLstnr )
+{
+    MutexGuard  aGuard( GetLinguMutex() );
+
+    bool bRes = false;
+    if (!m_bDisposing && rxLstnr.is())
+    {
+        bRes = GetPropHelper().addLinguServiceEventListener( rxLstnr );
+    }
+    return bRes;
+}
+
+sal_Bool SAL_CALL SpellChecker::removeLinguServiceEventListener(
+        const Reference< XLinguServiceEventListener >& rxLstnr )
+{
+    MutexGuard  aGuard( GetLinguMutex() );
+
+    bool bRes = false;
+    if (!m_bDisposing && rxLstnr.is())
+    {
+        bRes = GetPropHelper().removeLinguServiceEventListener( rxLstnr );
+    }
+    return bRes;
+}
+
+OUString SAL_CALL SpellChecker::getServiceDisplayName(const Locale& rLocale)
+{
+    std::locale loc(Translate::Create("svt", LanguageTag(rLocale)));
+    return Translate::get(STR_DESCRIPTION_HUNSPELL, loc);
+}
+
+void SAL_CALL SpellChecker::initialize( const Sequence< Any >& rArguments )
+{
+    MutexGuard  aGuard( GetLinguMutex() );
+
+    if (m_pPropHelper)
+        return;
+
+    sal_Int32 nLen = rArguments.getLength();
+    if (2 == nLen)
+    {
+        Reference< XLinguProperties >   xPropSet;
+        rArguments.getConstArray()[0] >>= xPropSet;
+        // rArguments.getConstArray()[1] >>= xDicList;
+
+        //! Pointer allows for access of the non-UNO functions.
+        //! And the reference to the UNO-functions while increasing
+        //! the ref-count and will implicitly free the memory
+        //! when the object is no longer used.
+        m_pPropHelper.reset( new PropertyHelper_Spelling( static_cast<XSpellChecker *>(this), xPropSet ) );
+        m_pPropHelper->AddAsPropListener();   //! after a reference is established
+    }
+    else {
+        OSL_FAIL( "wrong number of arguments in sequence" );
+    }
+}
+
+void SAL_CALL SpellChecker::dispose()
+{
+    MutexGuard  aGuard( GetLinguMutex() );
+
+    if (!m_bDisposing)
+    {
+        m_bDisposing = true;
+        EventObject aEvtObj( static_cast<XSpellChecker *>(this) );
+        m_aEvtListeners.disposeAndClear( aEvtObj );
+        if (m_pPropHelper)
+        {
+            m_pPropHelper->RemoveAsPropListener();
+            m_pPropHelper.reset();
+        }
+    }
+}
+
+void SAL_CALL SpellChecker::addEventListener( const Reference< XEventListener >& rxListener )
+{
+    MutexGuard  aGuard( GetLinguMutex() );
+
+    if (!m_bDisposing && rxListener.is())
+        m_aEvtListeners.addInterface( rxListener );
+}
+
+void SAL_CALL SpellChecker::removeEventListener( const Reference< XEventListener >& rxListener )
+{
+    MutexGuard  aGuard( GetLinguMutex() );
+
+    if (!m_bDisposing && rxListener.is())
+        m_aEvtListeners.removeInterface( rxListener );
+}
+
+// Service specific part
+OUString SAL_CALL SpellChecker::getImplementationName()
+{
+    return "org.openoffice.lingu.MySpellSpellChecker";
+}
+
+sal_Bool SAL_CALL SpellChecker::supportsService( const OUString& ServiceName )
+{
+    return cppu::supportsService(this, ServiceName);
+}
+
+Sequence< OUString > SAL_CALL SpellChecker::getSupportedServiceNames()
+{
+    return { SN_SPELLCHECKER };
+}
+
+extern "C" SAL_DLLPUBLIC_EXPORT css::uno::XInterface*
+lingucomponent_SpellChecker_get_implementation(
+    css::uno::XComponentContext* , css::uno::Sequence<css::uno::Any> const&)
+{
+    return cppu::acquire(new SpellChecker());
+}
+
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/lingucomponent/source/spellcheck/spell/sspellimp.hxx b/lingucomponent/source/spellcheck/spell/sspellimp.hxx
new file mode 100644
index 0000000000..68ddc69b3c
--- /dev/null
+++ b/lingucomponent/source/spellcheck/spell/sspellimp.hxx
@@ -0,0 +1,120 @@
+/* -*- 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_LINGUCOMPONENT_SOURCE_SPELLCHECK_SPELL_SSPELLIMP_HXX
+#define INCLUDED_LINGUCOMPONENT_SOURCE_SPELLCHECK_SPELL_SSPELLIMP_HXX
+
+#include <comphelper/interfacecontainer3.hxx>
+#include <cppuhelper/implbase.hxx>
+#include <com/sun/star/lang/XComponent.hpp>
+#include <com/sun/star/lang/XInitialization.hpp>
+#include <com/sun/star/lang/XServiceDisplayName.hpp>
+#include <com/sun/star/beans/PropertyValue.hpp>
+#include <com/sun/star/lang/XServiceInfo.hpp>
+#include <com/sun/star/linguistic2/XSpellChecker.hpp>
+#include <com/sun/star/linguistic2/XLinguServiceEventBroadcaster.hpp>
+
+#include <linguistic/lngprophelp.hxx>
+
+#include <memory>
+
+#include <hunspell.hxx>
+
+using namespace ::com::sun::star::uno;
+using namespace ::com::sun::star::beans;
+using namespace ::com::sun::star::lang;
+using namespace ::com::sun::star::linguistic2;
+
+class SpellChecker :
+    public cppu::WeakImplHelper
+    <
+        XSpellChecker,
+        XLinguServiceEventBroadcaster,
+        XInitialization,
+        XComponent,
+        XServiceInfo,
+        XServiceDisplayName
+    >
+{
+    struct DictItem
+    {
+        OUString                  m_aDName;
+        Locale                    m_aDLoc;
+        std::unique_ptr<Hunspell> m_pDict;
+        rtl_TextEncoding          m_aDEnc;
+
+        DictItem(OUString i_DName, Locale i_DLoc, rtl_TextEncoding i_DEnc);
+    };
+
+    std::vector<DictItem> m_DictItems;
+
+    Sequence< Locale >                 m_aSuppLocales;
+
+    ::comphelper::OInterfaceContainerHelper3<XEventListener> m_aEvtListeners;
+    std::unique_ptr<linguistic::PropertyHelper_Spelling> m_pPropHelper;
+    bool                                    m_bDisposing;
+
+    SpellChecker(const SpellChecker &) = delete;
+    SpellChecker & operator = (const SpellChecker &) = delete;
+
+    linguistic::PropertyHelper_Spelling&  GetPropHelper_Impl();
+    linguistic::PropertyHelper_Spelling&  GetPropHelper()
+    {
+        return m_pPropHelper ? *m_pPropHelper : GetPropHelper_Impl();
+    }
+
+    sal_Int16   GetSpellFailure( const OUString &rWord, const Locale &rLocale, int& rInfo );
+    Reference< XSpellAlternatives > GetProposals( const OUString &rWord, const Locale &rLocale );
+
+public:
+    SpellChecker();
+    virtual ~SpellChecker() override;
+
+    // XSupportedLocales (for XSpellChecker)
+    virtual Sequence< Locale > SAL_CALL getLocales() override;
+    virtual sal_Bool SAL_CALL hasLocale( const Locale& rLocale ) override;
+
+    // XSpellChecker
+    virtual sal_Bool SAL_CALL isValid( const OUString& rWord, const Locale& rLocale, const css::uno::Sequence< css::beans::PropertyValue >& rProperties ) override;
+    virtual Reference< XSpellAlternatives > SAL_CALL spell( const OUString& rWord, const Locale& rLocale, const css::uno::Sequence< css::beans::PropertyValue >& rProperties ) override;
+
+    // XLinguServiceEventBroadcaster
+    virtual sal_Bool SAL_CALL addLinguServiceEventListener( const Reference< XLinguServiceEventListener >& rxLstnr ) override;
+    virtual sal_Bool SAL_CALL removeLinguServiceEventListener( const Reference< XLinguServiceEventListener >& rxLstnr ) override;
+
+    // XServiceDisplayName
+    virtual OUString SAL_CALL getServiceDisplayName( const Locale& rLocale ) override;
+
+    // XInitialization
+    virtual void SAL_CALL initialize( const Sequence< Any >& rArguments ) override;
+
+    // XComponent
+    virtual void SAL_CALL dispose() override;
+    virtual void SAL_CALL addEventListener( const Reference< XEventListener >& rxListener ) override;
+    virtual void SAL_CALL removeEventListener( const Reference< XEventListener >& rxListener ) override;
+
+    // XServiceInfo
+    virtual OUString SAL_CALL getImplementationName() override;
+    virtual sal_Bool SAL_CALL supportsService( const OUString& rServiceName ) override;
+    virtual Sequence< OUString > SAL_CALL getSupportedServiceNames() override;
+};
+
+#endif
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/lingucomponent/source/thesaurus/libnth/lnth.component b/lingucomponent/source/thesaurus/libnth/lnth.component
new file mode 100644
index 0000000000..66e90e2cf2
--- /dev/null
+++ b/lingucomponent/source/thesaurus/libnth/lnth.component
@@ -0,0 +1,26 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+ * 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 .
+ -->
+
+<component loader="com.sun.star.loader.SharedLibrary" environment="@CPPU_ENV@"
+    xmlns="http://openoffice.org/2010/uno-components">
+  <implementation name="org.openoffice.lingu.new.Thesaurus"
+    constructor="lingucomponent_Thesaurus_get_implementation" single-instance="true">
+    <service name="com.sun.star.linguistic2.Thesaurus"/>
+  </implementation>
+</component>
diff --git a/lingucomponent/source/thesaurus/libnth/nthesdta.cxx b/lingucomponent/source/thesaurus/libnth/nthesdta.cxx
new file mode 100644
index 0000000000..6d076d8484
--- /dev/null
+++ b/lingucomponent/source/thesaurus/libnth/nthesdta.cxx
@@ -0,0 +1,76 @@
+/* -*- 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 <osl/mutex.hxx>
+
+#include "nthesdta.hxx"
+#include <linguistic/misc.hxx>
+#include <utility>
+
+using namespace osl;
+using namespace com::sun::star;
+using namespace com::sun::star::beans;
+using namespace com::sun::star::lang;
+using namespace com::sun::star::uno;
+using namespace com::sun::star::linguistic2;
+
+namespace linguistic
+{
+
+Meaning::Meaning(OUString _aTerm) :
+    aSyn        ( Sequence< OUString >(1) ),
+    aTerm       (std::move(_aTerm))
+{
+#if 0
+    // this is for future use by a german thesaurus when one exists
+    bIsGermanPreReform = rHelper.IsGermanPreReform;
+#endif
+}
+
+Meaning::~Meaning()
+{
+}
+
+OUString SAL_CALL Meaning::getMeaning()
+{
+    MutexGuard  aGuard( GetLinguMutex() );
+    return aTerm;
+}
+
+Sequence< OUString > SAL_CALL Meaning::querySynonyms()
+{
+    MutexGuard  aGuard( GetLinguMutex() );
+    return aSyn;
+}
+
+void Meaning::SetSynonyms( const Sequence< OUString > &rSyn )
+{
+        MutexGuard      aGuard( GetLinguMutex() );
+        aSyn = rSyn;
+}
+
+void Meaning::SetMeaning( const OUString &rTerm )
+{
+        MutexGuard      aGuard( GetLinguMutex() );
+        aTerm = rTerm;
+}
+
+}   // namespace linguistic
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/lingucomponent/source/thesaurus/libnth/nthesdta.hxx b/lingucomponent/source/thesaurus/libnth/nthesdta.hxx
new file mode 100644
index 0000000000..fb2c6438d7
--- /dev/null
+++ b/lingucomponent/source/thesaurus/libnth/nthesdta.hxx
@@ -0,0 +1,60 @@
+/* -*- 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_LINGUCOMPONENT_SOURCE_THESAURUS_LIBNTH_NTHESDTA_HXX
+#define INCLUDED_LINGUCOMPONENT_SOURCE_THESAURUS_LIBNTH_NTHESDTA_HXX
+
+#include <com/sun/star/linguistic2/XMeaning.hpp>
+#include <cppuhelper/implbase.hxx>
+
+namespace linguistic
+{
+
+class Meaning :
+    public cppu::WeakImplHelper< css::linguistic2::XMeaning >
+{
+    css::uno::Sequence< OUString >  aSyn;   // list of synonyms, may be empty.
+    OUString         aTerm;
+
+#if 0
+        // this is for future use by a German thesaurus
+        sal_Bool                bIsGermanPreReform;
+#endif
+
+    Meaning(const Meaning &) = delete;
+    Meaning & operator = (const Meaning &) = delete;
+
+public:
+    explicit Meaning(OUString aTerm);
+    virtual ~Meaning() override;
+
+    // XMeaning
+    virtual OUString SAL_CALL getMeaning() override;
+    virtual css::uno::Sequence< OUString > SAL_CALL querySynonyms() override;
+
+    // non-interface specific functions
+    void    SetSynonyms( const css::uno::Sequence< OUString > &rSyn );
+    void    SetMeaning( const OUString  &rTerm );
+};
+
+}   // namespace linguistic
+
+#endif
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/lingucomponent/source/thesaurus/libnth/nthesimp.cxx b/lingucomponent/source/thesaurus/libnth/nthesimp.cxx
new file mode 100644
index 0000000000..ea3e3af8dd
--- /dev/null
+++ b/lingucomponent/source/thesaurus/libnth/nthesimp.cxx
@@ -0,0 +1,571 @@
+/* -*- 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 <com/sun/star/uno/Reference.h>
+#include <cppuhelper/factory.hxx>
+#include <cppuhelper/supportsservice.hxx>
+#include <cppuhelper/weak.hxx>
+#include <com/sun/star/linguistic2/LinguServiceManager.hpp>
+#include <com/sun/star/linguistic2/XLinguProperties.hpp>
+#include <com/sun/star/linguistic2/XSpellChecker1.hpp>
+#include <i18nlangtag/languagetag.hxx>
+#include <tools/debug.hxx>
+#include <comphelper/lok.hxx>
+#include <comphelper/processfactory.hxx>
+#include <comphelper/sequence.hxx>
+#include <osl/mutex.hxx>
+#include <osl/thread.h>
+#include <unotools/lingucfg.hxx>
+#include <unotools/resmgr.hxx>
+
+#include <rtl/string.hxx>
+#include <rtl/textenc.h>
+
+#include <svtools/strings.hrc>
+
+#include "nthesimp.hxx"
+#include <linguistic/misc.hxx>
+#include "nthesdta.hxx"
+
+#include <vector>
+#include <numeric>
+#include <set>
+#include <string.h>
+
+// XML-header to query SPELLML support
+constexpr OUStringLiteral SPELLML_SUPPORT = u"<?xml?>";
+
+using namespace osl;
+using namespace com::sun::star;
+using namespace com::sun::star::beans;
+using namespace com::sun::star::lang;
+using namespace com::sun::star::uno;
+using namespace com::sun::star::linguistic2;
+using namespace linguistic;
+
+static uno::Reference< XLinguServiceManager2 > GetLngSvcMgr_Impl()
+{
+    uno::Reference< XComponentContext > xContext( comphelper::getProcessComponentContext() );
+    uno::Reference< XLinguServiceManager2 > xRes = LinguServiceManager::create( xContext ) ;
+    return xRes;
+}
+
+Thesaurus::Thesaurus() :
+    aEvtListeners   ( GetLinguMutex() ), pPropHelper(nullptr), bDisposing(false),
+    prevLocale(LANGUAGE_DONTKNOW)
+{
+}
+
+Thesaurus::~Thesaurus()
+{
+    mvThesInfo.clear();
+    if (pPropHelper)
+    {
+        pPropHelper->RemoveAsPropListener();
+    }
+}
+
+PropertyHelper_Thesaurus& Thesaurus::GetPropHelper_Impl()
+{
+    if (!pPropHelper)
+    {
+        Reference< XLinguProperties >   xPropSet = GetLinguProperties();
+
+        pPropHelper = new PropertyHelper_Thesaurus( static_cast<XThesaurus *>(this), xPropSet );
+        pPropHelper->AddAsPropListener();   //! after a reference is established
+    }
+    return *pPropHelper;
+}
+
+Sequence< Locale > SAL_CALL Thesaurus::getLocales()
+{
+    MutexGuard  aGuard( GetLinguMutex() );
+
+    // this routine should return the locales supported by the installed
+    // dictionaries.
+    if (mvThesInfo.empty())
+    {
+        SvtLinguConfig aLinguCfg;
+
+        // get list of dictionaries-to-use
+        std::vector< SvtLinguConfigDictionaryEntry > aDics;
+        uno::Sequence< OUString > aFormatList;
+        aLinguCfg.GetSupportedDictionaryFormatsFor( "Thesauri",
+                "org.openoffice.lingu.new.Thesaurus", aFormatList );
+        for (const auto& rFormat : std::as_const(aFormatList))
+        {
+            std::vector< SvtLinguConfigDictionaryEntry > aTmpDic(
+                    aLinguCfg.GetActiveDictionariesByFormat( rFormat ) );
+            aDics.insert( aDics.end(), aTmpDic.begin(), aTmpDic.end() );
+        }
+
+        //!! for compatibility with old dictionaries (the ones not using extensions
+        //!! or new configuration entries, but still using the dictionary.lst file)
+        //!! Get the list of old style spell checking dictionaries to use...
+        std::vector< SvtLinguConfigDictionaryEntry > aOldStyleDics(
+                GetOldStyleDics( "THES" ) );
+
+        // to prefer dictionaries with configuration entries we will only
+        // use those old style dictionaries that add a language that
+        // is not yet supported by the list of new style dictionaries
+        MergeNewStyleDicsAndOldStyleDics( aDics, aOldStyleDics );
+
+        if (!aDics.empty())
+        {
+            // get supported locales from the dictionaries-to-use...
+            std::set<OUString> aLocaleNamesSet;
+            for (auto const& dict : aDics)
+            {
+                for (const auto& rLocaleName : dict.aLocaleNames)
+                {
+                    if (!comphelper::LibreOfficeKit::isAllowlistedLanguage(rLocaleName))
+                        continue;
+
+                    aLocaleNamesSet.insert( rLocaleName );
+                }
+            }
+            // ... and add them to the resulting sequence
+            std::vector<Locale> aLocalesVec;
+            aLocalesVec.reserve(aLocaleNamesSet.size());
+
+            std::transform(aLocaleNamesSet.begin(), aLocaleNamesSet.end(), std::back_inserter(aLocalesVec),
+                [](const OUString& localeName) -> Locale { return LanguageTag::convertToLocale(localeName); });
+
+            aSuppLocales = comphelper::containerToSequence(aLocalesVec);
+
+            //! For each dictionary and each locale we need a separate entry.
+            //! If this results in more than one dictionary per locale than (for now)
+            //! it is undefined which dictionary gets used.
+            //! In the future the implementation should support using several dictionaries
+            //! for one locale.
+            sal_Int32 numthes = std::accumulate(aDics.begin(), aDics.end(), 0,
+                [](const sal_Int32 nSum, const SvtLinguConfigDictionaryEntry& dict) {
+                    return nSum + dict.aLocaleNames.getLength(); });
+
+            // add dictionary information
+            mvThesInfo.resize(numthes);
+
+            sal_Int32 k = 0;
+            for (auto const& dict : aDics)
+            {
+                if (dict.aLocaleNames.hasElements() &&
+                    dict.aLocations.hasElements())
+                {
+                    // currently only one language per dictionary is supported in the actual implementation...
+                    // Thus here we work-around this by adding the same dictionary several times.
+                    // Once for each of its supported locales.
+                    for (const auto& rLocaleName : dict.aLocaleNames)
+                    {
+                        LanguageTag aLanguageTag(rLocaleName);
+                        mvThesInfo[k].aEncoding = RTL_TEXTENCODING_DONTKNOW;
+                        mvThesInfo[k].aLocale  = aLanguageTag.getLocale();
+                        mvThesInfo[k].aCharSetInfo.reset( new CharClass( std::move(aLanguageTag) ) );
+                        // also both files have to be in the same directory and the
+                        // file names must only differ in the extension (.aff/.dic).
+                        // Thus we use the first location only and strip the extension part.
+                        OUString aLocation = dict.aLocations[0];
+                        sal_Int32 nPos = aLocation.lastIndexOf( '.' );
+                        aLocation = aLocation.copy( 0, nPos );
+                        mvThesInfo[k].aName = aLocation;
+
+                        ++k;
+                    }
+                }
+            }
+            DBG_ASSERT( k == numthes, "index mismatch?" );
+        }
+        else
+        {
+            /* no dictionary found so register no dictionaries */
+            mvThesInfo.clear();
+            aSuppLocales.realloc(0);
+        }
+    }
+
+    return aSuppLocales;
+}
+
+sal_Bool SAL_CALL Thesaurus::hasLocale(const Locale& rLocale)
+{
+    MutexGuard  aGuard( GetLinguMutex() );
+
+    if (!aSuppLocales.hasElements())
+        getLocales();
+
+    return comphelper::findValue(aSuppLocales, rLocale) != -1;
+}
+
+Sequence < Reference < css::linguistic2::XMeaning > > SAL_CALL Thesaurus::queryMeanings(
+    const OUString& qTerm, const Locale& rLocale,
+    const css::uno::Sequence< css::beans::PropertyValue >& rProperties)
+{
+    MutexGuard      aGuard( GetLinguMutex() );
+
+    uno::Sequence< Reference< XMeaning > > aMeanings( 1 );
+    uno::Sequence< Reference< XMeaning > > noMeanings( 0 );
+    uno::Reference< XLinguServiceManager2 > xLngSvcMgr( GetLngSvcMgr_Impl() );
+    uno::Reference< XSpellChecker1 > xSpell;
+
+    OUString aRTerm(qTerm);
+    OUString aPTerm(qTerm);
+    CapType ct = CapType::UNKNOWN;
+    sal_Int32 stem = 0;
+    sal_Int32 stem2 = 0;
+
+    LanguageType nLanguage = LinguLocaleToLanguage( rLocale );
+
+    if (LinguIsUnspecified( nLanguage) || aRTerm.isEmpty())
+        return noMeanings;
+
+    if (!hasLocale( rLocale ))
+#ifdef LINGU_EXCEPTIONS
+        throw( IllegalArgumentException() );
+#else
+        return noMeanings;
+#endif
+
+    if (prevTerm == qTerm && prevLocale == nLanguage)
+        return prevMeanings;
+
+    mentry * pmean = nullptr;
+    sal_Int32 nmean = 0;
+
+    PropertyHelper_Thesaurus &rHelper = GetPropHelper();
+    rHelper.SetTmpPropVals( rProperties );
+
+    MyThes * pTH = nullptr;
+    rtl_TextEncoding eEnc = RTL_TEXTENCODING_DONTKNOW;
+    CharClass * pCC = nullptr;
+
+    // find the first thesaurus that matches the locale
+    for (size_t i =0; i < mvThesInfo.size(); i++)
+    {
+        if (rLocale == mvThesInfo[i].aLocale)
+        {
+            // open up and initialize this thesaurus if need be
+            if (!mvThesInfo[i].aThes)
+            {
+                OUString datpath = mvThesInfo[i].aName + ".dat";
+                OUString idxpath = mvThesInfo[i].aName + ".idx";
+                OUString ndat;
+                OUString nidx;
+                osl::FileBase::getSystemPathFromFileURL(datpath,ndat);
+                osl::FileBase::getSystemPathFromFileURL(idxpath,nidx);
+
+#if defined(_WIN32)
+                // MyThes waits UTF-8 encoded paths with \\?\ long path prefix.
+                OString aTmpidx = Win_AddLongPathPrefix(OUStringToOString(nidx, RTL_TEXTENCODING_UTF8));
+                OString aTmpdat = Win_AddLongPathPrefix(OUStringToOString(ndat, RTL_TEXTENCODING_UTF8));
+#else
+                OString aTmpidx(OU2ENC(nidx,osl_getThreadTextEncoding()));
+                OString aTmpdat(OU2ENC(ndat,osl_getThreadTextEncoding()));
+#endif
+
+                mvThesInfo[i].aThes.reset( new MyThes(aTmpidx.getStr(),aTmpdat.getStr()) );
+                mvThesInfo[i].aEncoding = getTextEncodingFromCharset(mvThesInfo[i].aThes->get_th_encoding());
+            }
+            pTH = mvThesInfo[i].aThes.get();
+            eEnc = mvThesInfo[i].aEncoding;
+            pCC = mvThesInfo[i].aCharSetInfo.get();
+
+            if (pTH)
+                break;
+        }
+    }
+
+    // we don't want to work with a default text encoding since following incorrect
+    // results may occur only for specific text and thus may be hard to notice.
+    // Thus better always make a clean exit here if the text encoding is in question.
+    // Hopefully something not working at all will raise proper attention quickly. ;-)
+    DBG_ASSERT( eEnc != RTL_TEXTENCODING_DONTKNOW, "failed to get text encoding! (maybe incorrect encoding string in file)" );
+    if (eEnc == RTL_TEXTENCODING_DONTKNOW)
+        return noMeanings;
+
+    while (pTH)
+    {
+        // convert word to all lower case for searching
+        if (!stem)
+            ct = capitalType(aRTerm, pCC);
+        OUString nTerm(makeLowerCase(aRTerm, pCC));
+        OString aTmp( OU2ENC(nTerm, eEnc) );
+        nmean = pTH->Lookup(aTmp.getStr(),aTmp.getLength(),&pmean);
+
+        if (nmean)
+            aMeanings.realloc( nmean );
+
+        mentry * pe = pmean;
+        OUString codeTerm = qTerm;
+        Reference< XSpellAlternatives > xTmpRes2;
+
+        if (stem)
+        {
+            xTmpRes2 = xSpell->spell( "<?xml?><query type='analyze'><word>" +
+                                      aPTerm + "</word></query>", static_cast<sal_uInt16>(nLanguage), rProperties );
+            if (xTmpRes2.is())
+            {
+                Sequence<OUString>seq = xTmpRes2->getAlternatives();
+                if (seq.hasElements())
+                {
+                    codeTerm = seq[0];
+                    stem2 = 1;
+                }
+            }
+        }
+
+        for (int j = 0; j < nmean; j++)
+        {
+            int count = pe->count;
+            if (count)
+            {
+                Sequence< OUString > aStr( count );
+                OUString *pStr = aStr.getArray();
+
+                for (int i=0; i < count; i++)
+                {
+                    OUString sTerm(pe->psyns[i],strlen(pe->psyns[i]),eEnc );
+                    sal_Int32 catpos = sTerm.indexOf('(');
+                    OUString catst;
+                    if (catpos > 2)
+                    {
+                        // remove category name for affixation and casing
+                        catst = OUString::Concat(" ") + sTerm.subView(catpos);
+                        sTerm = sTerm.copy(0, catpos);
+                        sTerm = sTerm.trim();
+                    }
+                    // generate synonyms with affixes
+                    if (stem && stem2)
+                    {
+                        Reference< XSpellAlternatives > xTmpRes = xSpell->spell( "<?xml?><query type='generate'><word>" +
+                            sTerm + "</word>" + codeTerm + "</query>", static_cast<sal_uInt16>(nLanguage), rProperties );
+                        if (xTmpRes.is())
+                        {
+                            Sequence<OUString>seq = xTmpRes->getAlternatives();
+                            if (seq.hasElements())
+                                sTerm = seq[0];
+                        }
+                    }
+
+                    CapType ct1 = capitalType(sTerm, pCC);
+                    if (CapType::MIXED == ct1)
+                        ct = ct1;
+                    OUString cTerm;
+                    switch (ct)
+                    {
+                        case CapType::ALLCAP:
+                            cTerm = makeUpperCase(sTerm, pCC);
+                            break;
+                        case CapType::INITCAP:
+                            cTerm = makeInitCap(sTerm, pCC);
+                            break;
+                        default:
+                            cTerm = sTerm;
+                            break;
+                    }
+                    OUString aAlt( cTerm + catst);
+                    pStr[i] = aAlt;
+                }
+                rtl::Reference<Meaning> pMn = new Meaning(aRTerm);
+                OUString dTerm(pe->defn,strlen(pe->defn),eEnc );
+                pMn->SetMeaning(dTerm);
+                pMn->SetSynonyms(aStr);
+                Reference<XMeaning>* pMeaning = aMeanings.getArray();
+                pMeaning[j] = pMn;
+            }
+            pe++;
+        }
+        pTH->CleanUpAfterLookup(&pmean,nmean);
+
+        if (nmean)
+        {
+            prevTerm = qTerm;
+            prevMeanings = aMeanings;
+            prevLocale = nLanguage;
+            return aMeanings;
+        }
+
+        if (stem || !xLngSvcMgr.is())
+            return noMeanings;
+        stem = 1;
+
+        xSpell.set( xLngSvcMgr->getSpellChecker(), UNO_QUERY );
+        if (!xSpell.is() || !xSpell->isValid( SPELLML_SUPPORT, static_cast<sal_uInt16>(nLanguage), rProperties ))
+            return noMeanings;
+        Reference< XSpellAlternatives > xTmpRes = xSpell->spell( "<?xml?><query type='stem'><word>" +
+            aRTerm + "</word></query>", static_cast<sal_uInt16>(nLanguage), rProperties );
+        if (xTmpRes.is())
+        {
+            Sequence<OUString>seq = xTmpRes->getAlternatives();
+            if (seq.hasElements())
+            {
+                aRTerm = seq[0];  // XXX Use only the first stem
+                continue;
+            }
+        }
+
+        // stem the last word of the synonym (for categories after affixation)
+        aRTerm = aRTerm.trim();
+        sal_Int32 pos = aRTerm.lastIndexOf(' ');
+        if (!pos)
+            return noMeanings;
+        xTmpRes = xSpell->spell( OUString::Concat("<?xml?><query type='stem'><word>") +
+            aRTerm.subView(pos + 1) + "</word></query>", static_cast<sal_uInt16>(nLanguage), rProperties );
+        if (xTmpRes.is())
+        {
+            Sequence<OUString>seq = xTmpRes->getAlternatives();
+            if (seq.hasElements())
+            {
+                aPTerm = aRTerm.copy(pos + 1);
+                aRTerm = aRTerm.subView(0, pos + 1) + seq[0];
+#if  0
+                for (int i = 0; i < seq.getLength(); i++)
+                {
+                    OString o = OUStringToOString(seq[i], RTL_TEXTENCODING_UTF8);
+                    fprintf(stderr, "%d: %s\n", i + 1, o.pData->buffer);
+                }
+#endif
+                continue;
+            }
+        }
+        break;
+    }
+    return noMeanings;
+}
+
+OUString SAL_CALL Thesaurus::getServiceDisplayName(const Locale& rLocale)
+{
+    std::locale loc(Translate::Create("svt", LanguageTag(rLocale)));
+    return Translate::get(STR_DESCRIPTION_MYTHES, loc);
+}
+
+void SAL_CALL Thesaurus::initialize( const Sequence< Any >& rArguments )
+{
+    MutexGuard  aGuard( GetLinguMutex() );
+
+    if (pPropHelper)
+        return;
+
+    sal_Int32 nLen = rArguments.getLength();
+    // Accept one of two args so we can be compatible with the call site in GetAvailLocales()
+    // linguistic module
+    if (1 == nLen || 2 == nLen)
+    {
+        Reference< XLinguProperties >   xPropSet;
+        rArguments.getConstArray()[0] >>= xPropSet;
+        assert(xPropSet);
+
+        //! Pointer allows for access of the non-UNO functions.
+        //! And the reference to the UNO-functions while increasing
+        //! the ref-count and will implicitly free the memory
+        //! when the object is no longer used.
+        pPropHelper = new PropertyHelper_Thesaurus( static_cast<XThesaurus *>(this), xPropSet );
+        pPropHelper->AddAsPropListener();   //! after a reference is established
+    }
+    else
+        OSL_FAIL( "wrong number of arguments in sequence" );
+}
+
+OUString Thesaurus::makeLowerCase(const OUString& aTerm, CharClass const * pCC)
+{
+    if (pCC)
+        return pCC->lowercase(aTerm);
+    return aTerm;
+}
+
+OUString Thesaurus::makeUpperCase(const OUString& aTerm, CharClass const * pCC)
+{
+    if (pCC)
+        return pCC->uppercase(aTerm);
+    return aTerm;
+}
+
+OUString Thesaurus::makeInitCap(const OUString& aTerm, CharClass const * pCC)
+{
+    sal_Int32 tlen = aTerm.getLength();
+    if (pCC && tlen)
+    {
+        OUString bTemp = aTerm.copy(0,1);
+        if (tlen > 1)
+        {
+            return ( pCC->uppercase(bTemp, 0, 1)
+                     + pCC->lowercase(aTerm,1,(tlen-1)) );
+        }
+
+        return pCC->uppercase(bTemp, 0, 1);
+    }
+    return aTerm;
+}
+
+void SAL_CALL Thesaurus::dispose()
+{
+    MutexGuard  aGuard( GetLinguMutex() );
+
+    if (!bDisposing)
+    {
+        bDisposing = true;
+        EventObject aEvtObj( static_cast<XThesaurus *>(this) );
+        aEvtListeners.disposeAndClear( aEvtObj );
+        if (pPropHelper)
+        {
+            pPropHelper->RemoveAsPropListener();
+            delete pPropHelper;
+            pPropHelper = nullptr;
+        }
+    }
+}
+
+void SAL_CALL Thesaurus::addEventListener( const Reference< XEventListener >& rxListener )
+{
+    MutexGuard  aGuard( GetLinguMutex() );
+
+    if (!bDisposing && rxListener.is())
+        aEvtListeners.addInterface( rxListener );
+}
+
+void SAL_CALL Thesaurus::removeEventListener( const Reference< XEventListener >& rxListener )
+{
+    MutexGuard  aGuard( GetLinguMutex() );
+
+    if (!bDisposing && rxListener.is())
+        aEvtListeners.removeInterface( rxListener );
+}
+
+// Service specific part
+OUString SAL_CALL Thesaurus::getImplementationName()
+{
+    return "org.openoffice.lingu.new.Thesaurus";
+}
+
+sal_Bool SAL_CALL Thesaurus::supportsService( const OUString& ServiceName )
+{
+    return cppu::supportsService(this, ServiceName);
+}
+
+Sequence< OUString > SAL_CALL Thesaurus::getSupportedServiceNames()
+{
+    return { SN_THESAURUS };
+}
+
+extern "C" SAL_DLLPUBLIC_EXPORT css::uno::XInterface*
+lingucomponent_Thesaurus_get_implementation(
+    css::uno::XComponentContext* , css::uno::Sequence<css::uno::Any> const&)
+{
+    return cppu::acquire(new Thesaurus());
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/lingucomponent/source/thesaurus/libnth/nthesimp.hxx b/lingucomponent/source/thesaurus/libnth/nthesimp.hxx
new file mode 100644
index 0000000000..04eab06882
--- /dev/null
+++ b/lingucomponent/source/thesaurus/libnth/nthesimp.hxx
@@ -0,0 +1,129 @@
+/* -*- 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_LINGUCOMPONENT_SOURCE_THESAURUS_LIBNTH_NTHESIMP_HXX
+#define INCLUDED_LINGUCOMPONENT_SOURCE_THESAURUS_LIBNTH_NTHESIMP_HXX
+
+#include <comphelper/interfacecontainer3.hxx>
+#include <cppuhelper/implbase.hxx>
+#include <com/sun/star/uno/Reference.h>
+#include <com/sun/star/uno/Sequence.h>
+#include <com/sun/star/lang/XComponent.hpp>
+#include <com/sun/star/lang/XInitialization.hpp>
+#include <com/sun/star/lang/XServiceDisplayName.hpp>
+#include <com/sun/star/beans/XPropertySet.hpp>
+#include <com/sun/star/beans/PropertyValues.hpp>
+
+#include <com/sun/star/lang/XServiceInfo.hpp>
+#include <com/sun/star/linguistic2/XMeaning.hpp>
+#include <com/sun/star/linguistic2/XThesaurus.hpp>
+
+#include <unotools/charclass.hxx>
+
+#include <lingutil.hxx>
+#include <linguistic/misc.hxx>
+#include <linguistic/lngprophelp.hxx>
+
+#include <osl/file.hxx>
+#include <mythes.hxx>
+#include <memory>
+#include <vector>
+
+using namespace ::com::sun::star::uno;
+using namespace ::com::sun::star::beans;
+using namespace ::com::sun::star::lang;
+using namespace ::com::sun::star::linguistic2;
+
+namespace com::sun::star::beans { class XPropertySet; }
+
+class Thesaurus :
+    public cppu::WeakImplHelper
+    <
+        XThesaurus,
+        XInitialization,
+        XComponent,
+        XServiceInfo,
+        XServiceDisplayName
+    >
+{
+    Sequence< Locale >                      aSuppLocales;
+
+    ::comphelper::OInterfaceContainerHelper3<XEventListener> aEvtListeners;
+    linguistic::PropertyHelper_Thesaurus*       pPropHelper;
+    bool                                    bDisposing;
+    struct ThesInfo
+    {
+        std::unique_ptr<CharClass> aCharSetInfo;
+        std::unique_ptr<MyThes> aThes;
+        rtl_TextEncoding aEncoding;
+        Locale aLocale;
+        OUString aName;
+    };
+    std::vector<ThesInfo>                   mvThesInfo;
+
+    // cache for the Thesaurus dialog
+    Sequence < Reference < css::linguistic2::XMeaning > > prevMeanings;
+    OUString  prevTerm;
+    LanguageType prevLocale;
+
+    Thesaurus(const Thesaurus &) = delete;
+    Thesaurus & operator = (const Thesaurus &) = delete;
+
+    linguistic::PropertyHelper_Thesaurus&   GetPropHelper_Impl();
+    linguistic::PropertyHelper_Thesaurus&   GetPropHelper()
+    {
+        return pPropHelper ? *pPropHelper : GetPropHelper_Impl();
+    }
+
+public:
+    Thesaurus();
+    virtual ~Thesaurus() override;
+
+    // XSupportedLocales (for XThesaurus)
+    virtual Sequence< Locale > SAL_CALL getLocales() override;
+    virtual sal_Bool SAL_CALL hasLocale( const Locale& rLocale ) override;
+
+    // XThesaurus
+    virtual Sequence< Reference < css::linguistic2::XMeaning > > SAL_CALL queryMeanings( const OUString& rTerm, const Locale& rLocale, const css::uno::Sequence< css::beans::PropertyValue >& rProperties ) override;
+
+    // XServiceDisplayName
+    virtual OUString SAL_CALL getServiceDisplayName( const Locale& rLocale ) override;
+
+    // XInitialization
+    virtual void SAL_CALL initialize( const Sequence< Any >& rArguments ) override;
+
+    // XComponent
+    virtual void SAL_CALL dispose() override;
+    virtual void SAL_CALL addEventListener( const Reference< XEventListener >& rxListener ) override;
+    virtual void SAL_CALL removeEventListener( const Reference< XEventListener >& rxListener ) override;
+
+    // XServiceInfo
+    virtual OUString SAL_CALL getImplementationName() override;
+    virtual sal_Bool SAL_CALL supportsService( const OUString& rServiceName ) override;
+    virtual Sequence< OUString > SAL_CALL getSupportedServiceNames() override;
+
+private:
+    static OUString makeLowerCase(const OUString&, CharClass const *);
+    static OUString makeUpperCase(const OUString&, CharClass const *);
+    static OUString makeInitCap(const OUString&, CharClass const *);
+};
+
+#endif
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */