anchor.diff:                                  [];
                              (_) ->
                                   [erl_syntax:list([])]
  -                        end, [CData|group_refs(Refs)] ++ SubElVars)]))]
  +                        end, [CData|group_refs(Refs)] ++ SubElVars ++ XmlElVars)]))]
           end,
       [make_function(
          FunName,
  
positive.code:                 []
          end,
      ElCDataMatch =
          case CDataVars ++ ElemVars ++ SubElVars of
              [] ->
                  [];
              _ ->
                  [erl_syntax:match_expr(
                     tuple_or_single_var(CDataVars ++ ElemVars ++ SubElVars),
                     make_function_call(
                       FunName ++ "_els",
                       [erl_syntax:variable("_els")|
  
negative.code: is_label(Label) ->
      case atom_to_list(Label) of
          "$_els" ->
              true;
          "$_xmls" ->
              true;
          [$$,$_|_] ->
              false;
  