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Module type Regexp.RegexpType

module type RegexpType = sig .. end
type position = int 
module Position: Set.OrderedType  with type t = position
module PositionSet: Set.S  with type elt = position
type letter 
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