anchor.diff:      LB = url_param:to_list(B#sipurl.param_pairs),
   
       %% set vs ordset:
  -    %% ordsets is and retruns a sorted list, sets does _NOT_.
  -    %% ordsets should be better for for union, subtract and
  +    %% ordsets is and returns a sorted list, sets does _NOT_.
  +    %% ordsets should be better for union, subtract and
       %% intersection functions and as we do few insertions (only
       %% lists:usort/1 is run on the input to ordsets:from_list/1) there
       %% should be litle need for sets.
  
positive.code: 	 print/1,
  	 print_hostport/2,
  	 url_is_equal/2,
  	 parse_url_with_default_protocol/2,
  
  	 unescape_str/1,
  
negative.code:     io:format("test: parse/1 - 9~n"),
      ParsedUrl9 = parse("sip:%3Alice:%3A@[1:1:1:1:2:2:2:2];transp%3b%3Bort=TCP"),
  
      %% print(URL)
      %%--------------------------------------------------------------------
      %% test host
  