public void acceptAssignedKeyword(
     Keyword keyword, String token, String value, int index, ILeafNode node) {
   add(titles.doSwitch(keyword), token, "'" + value + "'", index, node);
   super.acceptAssignedKeyword(keyword, token, value, index, node);
 }
 /** @since 2.3 */
 @Override
 public void acceptAssignedKeyword(
     Keyword keyword, String token, Object value, int index, ILeafNode node) {
   add(titles.doSwitch(keyword), token, String.valueOf(value), index, node);
   super.acceptAssignedKeyword(keyword, token, value, index, node);
 }