added LanguageTag::getGlibcLocaleString()

Change-Id: I5e77026f5c016d912fa342a5e1bca08eb445b15c

i18npool/inc/i18npool/languagetag.hxx

@@ -158,6 +158,19 @@ public:
      */
     OUString                        getRegion() const;
 
+    /** Get a GLIBC locale string.
+
+        Always resolves an empty tag to the system locale.
+
+        @param  rEncoding
+                An encoding to be appended to language_country, for example
+                ".UTF-8" including the dot.
+
+        @return The resulting GLIBC locale string if it could be constructed,
+                if not an empty string is returned.
+     */
+    OUString                        getGlibcLocaleString( const OUString & rEncoding ) const;
+
     /** If language tag has a non-default script specified.
      */
     bool                            hasScript() const;

i18npool/source/languagetag/languagetag.cxx

@@ -950,6 +950,29 @@ OUString LanguageTag::getRegion() const
 }
 
 
+OUString LanguageTag::getGlibcLocaleString( const OUString & rEncoding ) const
+{
+    OUString aRet;
+    if (isIsoLocale())
+    {
+        OUString aCountry( getCountry());
+        if (aCountry.isEmpty())
+            aRet = getLanguage() + rEncoding;
+        else
+            aRet = getLanguage() + "_" + aCountry + rEncoding;
+    }
+    else
+    {
+        /* FIXME: use the aImplIsoLangGLIBCModifiersEntries table from
+         * i18npool/source/isolang/isolang.cxx or let liblangtag handle it. So
+         * far no code was prepared for anything else than a simple
+         * language_country locale so we don't loose anything here right now.
+         * */
+    }
+    return aRet;
+}
+
+
 bool LanguageTag::hasScript() const
 {
     if (!mbCachedScript)