val show : (int * int) -> stringval compare : (int * int) -> (int * int) -> intval pp : (int * int) -> stringval create : int -> int -> tval to_position : (int * int) -> Linol_lwt.Position.tval of_position : Linol_lwt.Position.t -> int * intval range : t -> t -> Linol_lwt.Range.t