(*i $Id$ i*)

type error =
  | Illegal_character
  | Unterminated_comment
  | Unterminated_string
  | Undefined_token
  | Bad_token of string

exception Error of error

val add_keyword : string -> unit
val is_keyword : string -> bool

val func : char Stream.t -> (string * string) Stream.t * (int -> int * int)

val add_token : Token.pattern -> unit

val tparse : string * string -> ((string * string) Stream.t -> string) option

val token_text : string * string -> string

type frozen_t
val freeze : unit -> frozen_t
val unfreeze : frozen_t -> unit
val init : unit -> unit