anchor.diff:      ?HANDLE_ERROR(do_wildcard(Pattern, Cwd, Mod)).
   
   -spec is_dir(Name) -> boolean() when
  -      Name :: filename() | dirname().
  +      Name :: filename_all() | dirname_all().
   is_dir(Dir) ->
       do_is_dir(Dir, file).
   
  --spec is_dir(file:name(), atom()) -> boolean().
  +-spec is_dir(file:name_all(), atom()) -> boolean().
   is_dir(Dir, Mod) when is_atom(Mod) ->
       do_is_dir(Dir, Mod).
   
   -spec is_file(Name) -> boolean() when
  -      Name :: filename() | dirname().
  +      Name :: filename_all() | dirname_all().
   is_file(File) ->
       do_is_file(File, file).
   
  --spec is_file(file:name(), atom()) -> boolean().
  +-spec is_file(file:name_all(), atom()) -> boolean().
   is_file(File, Mod) when is_atom(Mod) ->
       do_is_file(File, Mod).
   
   -spec is_regular(Name) -> boolean() when
  -      Name :: filename().
  +      Name :: filename_all().
   is_regular(File) ->
       do_is_regular(File, file).
       
  --spec is_regular(file:name(), atom()) -> boolean().
  +-spec is_regular(file:name_all(), atom()) -> boolean().
   is_regular(File, Mod) when is_atom(Mod) ->
       do_is_regular(File, Mod).
       
  
positive.code: %% ensures that the directory name required to create D exists
  
  -spec ensure_dir(Name) -> 'ok' | {'error', Reason} when
        Name :: filename() | dirname(),
        Reason :: file:posix().
  ensure_dir("/") ->
      ok;
  
negative.code: -type filename() :: file:name().
  -type dirname() :: filename().
  
  -type filename_all() :: file:name_all().
  -type dirname_all() :: filename_all().
  
  %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
  
  -spec wildcard(Wildcard) -> [file:filename()] when
  