read/write ODF *:script* and *:rfc-language-tag*

This prepares to be able to read/write the attributes, it does not
enable proper handling of unknown language tags yet. An unknown tag
usually falls back to SYSTEM locale.

Change-Id: I4a78e8fd37deae188c69570157bc4589a712bc7a

4 files changed, 73 insertions, 0 deletions

diff --git a/include/xmloff/languagetagodf.hxx b/include/xmloff/languagetagodf.hxx
new file mode 100644
index 000000000000..9eef8e84af8b
--- /dev/null
+++ b/include/xmloff/languagetagodf.hxx
@@ -0,0 +1,35 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+#include <sal/config.h>
+#include <rtl/ustring.hxx>
+#include <i18nlangtag/languagetag.hxx>
+
+/** Helper to gather the single language tag relevant attributes during reading
+    ODF and form a resulting LanguageTag when done.
+
+    For example fo:language, fo:script, fo:country, style:rfc-language-tag
+ */
+struct LanguageTagODF
+{
+    OUString    maRfcLanguageTag;
+    OUString    maLanguage;
+    OUString    maScript;
+    OUString    maCountry;
+
+    bool isEmpty() const { return maRfcLanguageTag.isEmpty() &&
+        maLanguage.isEmpty() && maScript.isEmpty() && maCountry.isEmpty(); }
+
+    /** Best call this only once per instance, it recreates a LanguageTag
+        instance on every call.
+    */
+    LanguageTag getLanguageTag() const { return LanguageTag( maRfcLanguageTag, maLanguage, maScript, maCountry); }
+};
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/include/xmloff/xmlexp.hxx b/include/xmloff/xmlexp.hxx
index 148f73692158..8a58cfd166b6 100644
--- a/include/xmloff/xmlexp.hxx
+++ b/include/xmloff/xmlexp.hxx
@@ -70,6 +70,7 @@ class XMLEventExport;
 class XMLSettingsExportHelper;
 class XMLImageMapExport;
 class XMLErrors;
+class LanguageTag;
 
 // Shapes in Writer cannot be named via context menu (#i51726#)
 #include <unotools/moduleoptions.hxx>
@@ -77,6 +78,7 @@ class XMLErrors;
 namespace com { namespace sun { namespace star {
     namespace frame { class XModel; }
     namespace container { class XIndexContainer; }
+    namespace lang { struct Locale; }
 } } }
 namespace comphelper { class UnoInterfaceToUniqueIdentifierMapper; }
 
@@ -349,6 +351,37 @@ public:
                        const OUString& rValue );
     void AddAttribute( const OUString& rQName,
                        enum ::xmloff::token::XMLTokenEnum eValue );
+
+    /** Add language tag attributes, deciding which are necessary.
+
+        @param  nPrefix
+                Namespace prefix for *:language, *:script and *:country
+
+        @param  nPrefixRfc
+                Namespace prefix for *:rfc-language-tag
+
+        @param  bWriteEmpty
+                Whether to write empty *:language and *:country attribute
+                values in case of an empty locale (denoting system).
+
+        @param  eClass
+                default, XML_LANGUAGE: XML_SCRIPT, XML_COUNTRY, XML_RFC_LANGUAGE_TAG
+                XML_LANGUAGE_ASIAN: XML_SCRIPT_ASIAN, XML_COUNTRY_ASIAN, XML_RFC_LANGUAGE_TAG_ASIAN
+                    also switches nPrefix XML_NAMESPACE_FO to XML_NAMESPACE_STYLE
+                XML_LANGUAGE_COMPLEX: XML_SCRIPT_COMPLEX, XML_COUNTRY_COMPLEX, XML_RFC_LANGUAGE_TAG_COMPLEX
+                    also switches nPrefix XML_NAMESPACE_FO to XML_NAMESPACE_STYLE
+     */
+    void AddLanguageTagAttributes( sal_uInt16 nPrefix, sal_uInt16 nPrefixRfc,
+            const ::com::sun::star::lang::Locale& rLocale, bool bWriteEmpty,
+            enum ::xmloff::token::XMLTokenEnum eClass = ::xmloff::token::XML_LANGUAGE );
+
+    /** Same as AddLanguageTagAttributes() but with LanguageTag parameter
+        instead of Locale.
+     */
+    void AddLanguageTagAttributes( sal_uInt16 nPrefix, sal_uInt16 nPrefixRfc,
+            const LanguageTag& rLanguageTag, bool bWriteEmpty,
+            enum ::xmloff::token::XMLTokenEnum eClass = ::xmloff::token::XML_LANGUAGE );
+
     // add several attributes to the common attribute list
     void AddAttributeList( const ::com::sun::star::uno::Reference<
                                   ::com::sun::star::xml::sax::XAttributeList >& xAttrList );
diff --git a/include/xmloff/xmltoken.hxx b/include/xmloff/xmltoken.hxx
index a47dedd9fc25..69282ce707d1 100644
--- a/include/xmloff/xmltoken.hxx
+++ b/include/xmloff/xmltoken.hxx
@@ -1547,6 +1547,8 @@ namespace xmloff { namespace token {
         XML_SCIENTIFIC_NUMBER,
         XML_SCORE_SPACES,
         XML_SCRIPT,
+        XML_SCRIPT_ASIAN,
+        XML_SCRIPT_COMPLEX,
         XML_SCROLL,
         XML_SDEV,
         XML_SEARCH_CRITERIA_MUST_APPLY_TO_WHOLE_CELL,
diff --git a/include/xmloff/xmltypes.hxx b/include/xmloff/xmltypes.hxx
index c20394fd934e..1953af47ee7d 100644
--- a/include/xmloff/xmltypes.hxx
+++ b/include/xmloff/xmltypes.hxx
@@ -274,6 +274,9 @@
 #define XML_TYPE_BOOL_FALSE             (XML_TEXT_TYPES_START + 114)
 #define XML_TYPE_FILLSTYLE              (XML_TEXT_TYPES_START + 115)
 
+#define XML_TYPE_CHAR_SCRIPT            (XML_TEXT_TYPES_START + 116)
+#define XML_TYPE_CHAR_RFC_LANGUAGE_TAG  (XML_TEXT_TYPES_START + 117)
+
 #define XML_SCH_TYPES_START (0x4 << XML_TYPE_APP_SHIFT)
 #define XML_PM_TYPES_START  (0x5 << XML_TYPE_APP_SHIFT) // page master
 #define XML_DB_TYPES_START  (0x6 << XML_TYPE_APP_SHIFT)