sig
type position
val undefined_position : Positions.position
val column : Lexing.position -> int
val line : Lexing.position -> int
val characters : Lexing.position -> Lexing.position -> int * int
val start_of_position : Positions.position -> Lexing.position
val end_of_position : Positions.position -> Lexing.position
val join : Positions.position -> Positions.position -> Positions.position
val lex_join : Lexing.position -> Lexing.position -> Positions.position
val ljoinf : ('a -> Positions.position) -> 'a list -> Positions.position
val joinf : ('a -> Positions.position) -> 'a -> 'a -> Positions.position
val string_of_characters : int * int -> string
val string_of_lex_pos : Lexing.position -> string
val string_of_pos : Positions.position -> string
val pos_or_undef : Positions.position option -> Positions.position
val cpos : Lexing.lexbuf -> Positions.position
val string_of_cpos : Lexing.lexbuf -> string
end