Scanf

`sig
module Scanning :
sig
type scanbuf
val stdib : Scanf.Scanning.scanbuf
val from_string : string -> Scanf.Scanning.scanbuf
val from_file : string -> Scanf.Scanning.scanbuf
val from_file_bin : string -> Scanf.Scanning.scanbuf
val from_function : (unit -> char) -> Scanf.Scanning.scanbuf
val from_channel : Pervasives.in_channel -> Scanf.Scanning.scanbuf
val end_of_input : Scanf.Scanning.scanbuf -> bool
val beginning_of_input : Scanf.Scanning.scanbuf -> bool
val name_of_input : Scanf.Scanning.scanbuf -> string
end
type ('a, 'b, 'c, 'd) scanner =
('a, Scanf.Scanning.scanbuf, 'b, 'c, 'a -> 'd, 'd) format6 -> 'c
exception Scan_failure of string
val bscanf : Scanf.Scanning.scanbuf -> ('a, 'b, 'c, 'd) Scanf.scanner
val fscanf : Pervasives.in_channel -> ('a, 'b, 'c, 'd) Scanf.scanner
val sscanf : string -> ('a, 'b, 'c, 'd) Scanf.scanner
val scanf : ('a, 'b, 'c, 'd) Scanf.scanner
val kscanf :
Scanf.Scanning.scanbuf ->
(Scanf.Scanning.scanbuf -> exn -> 'a) -> ('b, 'c, 'd, 'a) Scanf.scanner
val bscanf_format :
Scanf.Scanning.scanbuf ->
('a, 'b, 'c, 'd, 'e, 'f) format6 ->
(('a, 'b, 'c, 'd, 'e, 'f) format6 -> 'g) -> 'g
val sscanf_format :
string ->
('a, 'b, 'c, 'd, 'e, 'f) format6 ->
(('a, 'b, 'c, 'd, 'e, 'f) format6 -> 'g) -> 'g
val format_from_string :
string ->
('a, 'b, 'c, 'd, 'e, 'f) format6 -> ('a, 'b, 'c, 'd, 'e, 'f) format6
end`