anchor.diff:  process([_|Data], N) ->
       process(Data, N).
   
  +-spec store(is_cover(),
  +            statement_type(),
  +            FileOrContext :: binary() | context(),
  +            line() | undefined) -> ok.
  +%@doc store the information about the statement passed as a param. Calls to
  +%     store/3 only if is_cover() (first param) is true.
  +%@end
   store(_Cover, _Type, _FileOrContext, undefined) ->
       ok;
   store(true = _Cover, Type, FileOrContext, Line) ->
  
positive.code:     get_config/0
  ]).
  
  start_link() ->
      case erlang:get(cover) of
          undefined ->
  
negative.code:     Class = io_lib:format(?CLASS, [name(File), basename(File), Percentage, Lines]),
      dump(Cover, [Class|Classes]).
  
  -spec get_config() -> boolean().
  %@doc get information about whether cover is enabled.
  get_config() ->
      case ephp_data:to_bool(ephp_config:get(<<"cover.enable">>)) of
          true -> true;
          _ -> false
      end.
  
  -spec get_active_lines(cover_dict()) -> non_neg_integer().
  %@doc number of lines used in the running.
  get_active_lines(Data) ->
      length(lists:filter(fun({_,0}) -> false; (_) -> true end, Data)).
  
  -spec percentage(cover_dict()) -> float().
  %@doc percentage between 0 and 1 about the coverage.
  percentage(Data) ->
      get_active_lines(Data) / length(Data).
  
  -spec total_percentage(Files :: [{File :: binary(), cover_dict()}]) -> float().
  %@doc percentage total for all of the files between 0 and 1 about the coverage.
  total_percentage(Files) ->
      {A, T} = lists:foldl(fun({_, Dict}, {A,T}) ->
          {A + get_active_lines(Dict), T + length(Dict)}
      end, {0, 0}, Files),
      A / T.
  
  -spec dirname(Filename :: binary()) -> binary().
  %@hidden
  dirname(Filename) ->
      filename:dirname(Filename).
  
  -spec basename(Filename :: binary()) -> binary().
  %@hidden
  basename(Filename) ->
      filename:basename(Filename).
  
  -spec name(Filename :: binary()) -> binary().
  %@hidden
  name(Filename) ->
      filename:rootname(filename:basename(Filename)).
  