anchor.diff:  
   %%% For testing...
   -export([qtest/0]).
  -
   
   -include_lib("detergent.hrl").
   
  
positive.code: "    <xs:attribute name=\"location\" type=\"string\"/>"
  "  </xs:complexType>"
  "</xs:schema>".
  
negative.code: %%% --------------------------------------------------------------------
  get_url_file("http://"++_ = URL) ->
      get_url(URL);
  get_url_file("https://"++_ = URL) ->
      get_url(URL);
  get_url_file("file://"++Fname) ->
      {ok, Bin} = file:read_file(Fname),
  