anchor.diff:  
   file_exists(Context, Name) ->
       NamePath = file_path(Context, Name),
  -    case filelib:is_regular(NamePath) of 
  +    case filelib:is_regular(NamePath) of
           true ->
               {true, NamePath};
           false ->
  
positive.code:     end.
  
  provide_content(ReqData, Context) ->
      case maybe_fetch_object(Context, wrq:disp_path(ReqData)) of 
          {true, NewContext} ->
              Body = NewContext#context.response_body,
              {Body, ReqData, Context};
  
negative.code:     Path = wrq:disp_path(ReqData),
      FP = file_path(Context, Path),
      ok = filelib:ensure_dir(filename:dirname(FP)),
      ReqData1 = case file_exists(Context, Path) of
          {true, _} ->
              ReqData;
          _ ->
  