defined some x-... privateuse language tags

Change-Id: I1a4e00c677f7e5012831c0b36290c8585e45e474

i18npool/inc/i18npool/lang.h

@@ -566,6 +566,10 @@ typedef unsigned short LanguageType;
 #define LANGUAGE_USER_YOMBE                 0x0684
 #define LANGUAGE_USER_YOMBE_CONGO           0x8284  /* makeLangID( 0x20, getPrimaryLanguage( LANGUAGE_USER_YOMBE)) */
 #define LANGUAGE_USER_SIDAMA                0x0685
+
+#define LANGUAGE_USER_PRIV_COMMENT          0xFFEC  /* privateuse "x-comment", primary 0x3ec, sub 0x3f */
+#define LANGUAGE_USER_PRIV_DEFAULT          0xFFED  /* privateuse "x-default", primary 0x3ed, sub 0x3f */
+#define LANGUAGE_USER_PRIV_NOTRANSLATE      0xFFEE  /* privateuse "x-no-translate" (sic!), primary 0x3ee, sub 0x3f */
 #define LANGUAGE_MULTIPLE                   0xFFEF  /* multiple languages, primary 0x3ef, sub 0x3f */
 #define LANGUAGE_UNDETERMINED               0xFFF0  /* undetermined language, primary 0x3f0, sub 0x3f */
 #define LANGUAGE_USER_SYSTEM_CONFIG         0xFFFE  /* not a locale, to be used only in configuration context to obtain system default, primary 0x3fe, sub 0x3f */

i18npool/source/isolang/isolang.cxx

@@ -628,6 +628,16 @@ static IsoLangOtherEntry const aImplOtherEntries[] =
     { LANGUAGE_DONTKNOW,                    NULL             }  // marks end of table
 };
 
+
+// in this table are only privateuse names
+static IsoLangOtherEntry const aImplPrivateUseEntries[] =
+{
+    { LANGUAGE_USER_PRIV_NOTRANSLATE,       "x-no-translate" }, //! not BCP47 but legacy in .xcu configmgr
+    { LANGUAGE_USER_PRIV_DEFAULT,           "x-default"      },
+    { LANGUAGE_USER_PRIV_COMMENT,           "x-comment"      },
+    { LANGUAGE_DONTKNOW,                    NULL             }  // marks end of table
+};
+
 // =======================================================================
 
 // static
@@ -667,6 +677,20 @@ void MsLangId::Conversion::convertLanguageToIsoNames( LanguageType nLang,
     }
     while ( pNoneStdEntry->mnLang != LANGUAGE_DONTKNOW );
 
+    // Look for privateuse definitions.
+    const IsoLangOtherEntry* pPrivateEntry = aImplPrivateUseEntries;
+    do
+    {
+        if ( pPrivateEntry->mnLang == nLang )
+        {
+            rLangStr = rtl::OUString::createFromAscii( pPrivateEntry->mpLangStr );
+            rCountry = OUString();
+            return;
+        }
+        ++pPrivateEntry;
+    }
+    while ( pPrivateEntry->mnLang != LANGUAGE_DONTKNOW );
+
     // not found
     rLangStr = rtl::OUString();
     rCountry = rtl::OUString();
@@ -910,6 +934,16 @@ LanguageType MsLangId::Conversion::convertIsoNamesToLanguage( const rtl::OUStrin
         aLowerLang = aUpperCountry.toAsciiLowerCase();
     }
 
+    // Look for privateuse definitions.
+    const IsoLangOtherEntry* pPrivateEntry = aImplPrivateUseEntries;
+    do
+    {
+        if ( aLowerLang.equalsAscii( pPrivateEntry->mpLangStr ) )
+            return pPrivateEntry->mnLang;
+        ++pPrivateEntry;
+    }
+    while ( pPrivateEntry->mnLang != LANGUAGE_DONTKNOW );
+
     // Now look for all other definitions, which are not standard
     const IsoLangOtherEntry* pOtherEntry = aImplOtherEntries;
     do