anchor.diff:  
   join(Delimiters, L) when is_binary(Delimiters) ->
       [[_ | H] | T] = [[Delimiters, S] || S <- L],
  -    iolist_to_binary([H | T]);
  +    unicode:characters_to_binary([H | T]);
   join(Delimiters, L) when is_list(Delimiters) ->
       join_list(L, [], Delimiters).
   
  
positive.code:         is_integer(hd(SearchPattern)) ->
              [erlang:list_to_binary(SearchPattern)];
          is_list(SearchPattern) ->
              [erlang:iolist_to_binary(S) || S <- SearchPattern]
      end,
      binary:split(String, Pattern, [global]).
  -endif.
  
negative.code: %%-------------------------------------------------------------------------
  %% @doc
  %% ===Convert an Erlang term to a binary string.===
  %% Output is a utf8 encoded binary.
  %% @end
  %%-------------------------------------------------------------------------
  
  