sig
val from_gen : char Gen.t -> Sedlexing.lexbuf
val from_stream : char Stream.t -> Sedlexing.lexbuf
val from_channel : Pervasives.in_channel -> Sedlexing.lexbuf
val from_string : string -> Sedlexing.lexbuf
val lexeme : Sedlexing.lexbuf -> string
val sub_lexeme : Sedlexing.lexbuf -> int -> int -> string
end