810     match_aux(X, Y).
812 match_aux(X, X) ->  function
814 match_aux(X, Y) when is_list(X), is_list(Y), length(X) =/= length(Y) ->  function
817 match_aux([X|Xs], [X|Ys]) ->  function
818     match_aux(Xs, Ys);
819 match_aux([X|_], [Y|_]) ->  function
820     match_aux(X, Y);
821 match_aux(X, Y) when is_tuple(X), is_tuple(Y), size(X) =/= size(Y) ->  function
824 match_aux(X, Y) when is_tuple(X), is_tuple(Y) ->  function
825     match_aux(tuple_to_list(X), tuple_to_list(Y));
826 match_aux(X, Y) ->  function