code: public String getExtendedName(int ch)
      {
          String result = getName(ch, UCharacterNameChoice.UNICODE_CHAR_NAME);
          if (result == null) {
              // TODO: Return Name_Alias/control names for control codes 0..1F & 7F..9F.
              result = getExtendedOr10Name(ch);
          }
          return result;
      }
docs: Retrieves the extended name