functor (Letter : Set.OrderedType) ->
sig
type position = int
module Position : sig type t = position val compare : t -> t -> int end
module PositionSet :
sig
type elt = position
type t
val empty : t
val is_empty : t -> bool
val mem : elt -> t -> bool
val add : elt -> t -> t
val singleton : elt -> t
val remove : elt -> t -> t
val union : t -> t -> t
val inter : t -> t -> t
val diff : t -> t -> t
val compare : t -> t -> int
val equal : t -> t -> bool
val subset : t -> t -> bool
val iter : (elt -> unit) -> t -> unit
val fold : (elt -> 'a -> 'a) -> t -> 'a -> 'a
val for_all : (elt -> bool) -> t -> bool
val exists : (elt -> bool) -> t -> bool
val filter : (elt -> bool) -> t -> t
val partition : (elt -> bool) -> t -> t * t
val cardinal : t -> int
val elements : t -> elt list
val min_elt : t -> elt
val max_elt : t -> elt
val choose : t -> elt
val split : elt -> t -> t * bool * t
val find : elt -> t -> elt
val of_list : elt list -> t
end
type letter = Letter.t
type regexp =
RSym of (letter * position)
| RSeq of (regexp * regexp)
| REmpty
| RChoice of (regexp * regexp)
| RNone
| RPlus of regexp
| RStar of regexp
| RAmp of (regexp * regexp)
val nullable : regexp -> bool
val pos : regexp -> PositionSet.t
val first : regexp -> PositionSet.t
val last : regexp -> PositionSet.t
val follow : regexp -> position -> PositionSet.t
val chi : regexp -> position -> letter
val star_normalize_aux : regexp -> regexp
val star_normalize : regexp -> regexp
end