| Some(filter) -> List.filter (fun fe->Hashtbl.mem filter (fe#get_slice_name ())) frontend_lst
in
if (Str.string_match file_regexp curfile 0) then
| Some(filter) -> List.filter (fun fe->Hashtbl.mem filter (fe#get_slice_name ())) frontend_lst
in
if (Str.string_match file_regexp curfile 0) then