Ocaml module Str

module M :    
  sig 
    type regexp = Str.regexp                                                   
    val regexp : string -> regexp
    val regexp_case_fold : string -> regexp
    val quote : string -> string
    val regexp_string : string -> regexp
    val regexp_string_case_fold : string -> regexp
    val string_match : regexp -> string -> int -> bool
    val search_forward : regexp -> string -> int -> int
    val search_backward : regexp -> string -> int -> int
    val string_partial_match : regexp -> string -> int -> bool
    val matched_string : string -> string
    val match_beginning : unit -> int
    val match_end : unit -> int
    val matched_group : int -> string -> string
    val group_beginning : int -> int
    val group_end : int -> int
    val global_replace : regexp -> string -> string -> string
    val replace_first : regexp -> string -> string -> string
    val global_substitute : regexp -> (string -> string) -> string -> string
    val substitute_first : regexp -> (string -> string) -> string -> string
    val replace_matched : string -> string -> string
    val split : regexp -> string -> string list
    val bounded_split : regexp -> string -> int -> string list
    val split_delim : regexp -> string -> string list
    val bounded_split_delim : regexp -> string -> int -> string list
    type split_result = Str.split_result = Text of string | Delim of string
    val full_split : regexp -> string -> split_result list
    val bounded_full_split : regexp -> string -> int -> split_result list
    val string_before : string -> int -> string
    val string_after : string -> int -> string
    val first_chars : string -> int -> string
    val last_chars : string -> int -> string
  end