anchor.diff:      Output;
   join_list([H | T], Output) ->
       join_list(T, [H | Output]).
  -
  -%%-------------------------------------------------------------------------
  -%% @doc
  -%% ===Format a string based on the arguments, stored as a list.===
  -%% Output may include unicode characters with a numerical value greater
  -%% than 255 (preventing the output from being used directly with
  -%% erlang:iolist_to_binary/1)..
  -%% @end
  -%%-------------------------------------------------------------------------
  -
  --spec format_to_list(L :: string(),
  -                     A :: list()) ->
  -    string().
  -
  --compile({inline, [{format_to_list, 2}]}).
  -
  -format_to_list(L, A) when is_list(L), is_list(A) ->
  -    lists:flatten(io_lib:format(L, A)).
   
   %%-------------------------------------------------------------------------
   %% @doc
  
positive.code: 
  %%-------------------------------------------------------------------------
  %% @doc
  %% ===Join a list of strings with a string.===
  %% @end
  %%-------------------------------------------------------------------------
  
negative.code:     string().
  
  term_to_list(T) ->
      format("~tw", [T]).
  
  %%-------------------------------------------------------------------------
  %% @doc
  