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|
(************************************************************************)
(* * The Coq Proof Assistant / The Coq Development Team *)
(* v * Copyright INRIA, CNRS and contributors *)
(* <O___,, * (see version control and CREDITS file for authors & dates) *)
(* \VV/ **************************************************************)
(* // * This file is distributed under the terms of the *)
(* * GNU Lesser General Public License Version 2.1 *)
(* * (see LICENSE file for the text of the license) *)
(************************************************************************)
(** This module contains numerous utility functions on strings, lists,
arrays, etc. *)
(** Mapping under pairs *)
val on_fst : ('a -> 'b) -> 'a * 'c -> 'b * 'c
val on_snd : ('a -> 'b) -> 'c * 'a -> 'c * 'b
val map_pair : ('a -> 'b) -> 'a * 'a -> 'b * 'b
(** Folding under pairs *)
val fold_fst : ('c -> 'a -> 'c * 'a) -> 'c -> 'a * 'b -> 'c * ('a * 'b)
val fold_snd : ('c -> 'b -> 'c * 'b) -> 'c -> 'a * 'b -> 'c * ('a * 'b)
(** Equality on pairs *)
val eq_pair : ('a -> 'a -> bool) -> ('b -> 'b -> bool) -> ('a * 'b -> 'a * 'b -> bool)
(** Mapping under triplets *)
val on_pi1 : ('a -> 'b) -> 'a * 'c * 'd -> 'b * 'c * 'd
val on_pi2 : ('a -> 'b) -> 'c * 'a * 'd -> 'c * 'b * 'd
val on_pi3 : ('a -> 'b) -> 'c * 'd * 'a -> 'c * 'd * 'b
(** {6 Projections from triplets } *)
val pi1 : 'a * 'b * 'c -> 'a
val pi2 : 'a * 'b * 'c -> 'b
val pi3 : 'a * 'b * 'c -> 'c
(** {6 Chars. } *)
val is_letter : char -> bool
val is_digit : char -> bool
val is_ident_tail : char -> bool
val is_blank : char -> bool
(** {6 Empty type} *)
module Empty :
sig
type t
val abort : t -> 'a
end
(** {6 Strings. } *)
module String = CString
(** Substitute %s in the first chain by the second chain *)
val subst_command_placeholder : string -> string -> string
(** {6 Lists. } *)
module List : module type of CList
val (@) : 'a list -> 'a list -> 'a list
(** {6 Arrays. } *)
module Array : CArray.ExtS
(** {6 Sets. } *)
module Set : module type of CSet
(** {6 Maps. } *)
module Map : module type of CMap
(** {6 Matrices. } *)
val matrix_transpose : 'a list list -> 'a list list
(** {6 Functions. } *)
val identity : 'a -> 'a
(** Left-to-right function composition:
[f1 %> f2] is [fun x -> f2 (f1 x)].
[f1 %> f2 %> f3] is [fun x -> f3 (f2 (f1 x))].
[f1 %> f2 %> f3 %> f4] is [fun x -> f4 (f3 (f2 (f1 x)))]
etc.
*)
val ( %> ) : ('a -> 'b) -> ('b -> 'c) -> 'a -> 'c
val const : 'a -> 'b -> 'a
val iterate : ('a -> 'a) -> int -> 'a -> 'a
val repeat : int -> ('a -> unit) -> 'a -> unit
val app_opt : ('a -> 'a) option -> 'a -> 'a
(** {6 Delayed computations. } *)
type 'a delayed = unit -> 'a
val delayed_force : 'a delayed -> 'a
(** [try_finally f x g y] applies the main code [f] to [x] and
returns the result after having applied the finalization
code [g] to [y]. If the main code raises the exception
[exn], the finalization code is executed and [exn] is raised.
If the finalization code itself fails, the exception
returned is always the one from the finalization code.
Credit X.Leroy, D.Remy. *)
val try_finally: ('a -> 'b) -> 'a -> ('c -> unit) -> 'c -> 'b
(** {6 Enriched exceptions} *)
type iexn = Exninfo.iexn
[@@ocaml.deprecated "please use [Exninfo.iexn]"]
val iraise : Exninfo.iexn -> 'a
[@@ocaml.deprecated "please use [Exninfo.iraise]"]
(** {6 Misc. } *)
type ('a, 'b) union = ('a, 'b) CSig.union = Inl of 'a | Inr of 'b
(** Union type *)
module Union :
sig
val map : ('a -> 'c) -> ('b -> 'd) -> ('a, 'b) union -> ('c, 'd) union
val equal : ('a -> 'a -> bool) -> ('b -> 'b -> bool) -> ('a, 'b) union -> ('a, 'b) union -> bool
val fold_left : ('c -> 'a -> 'c) -> ('c -> 'b -> 'c) -> 'c -> ('a, 'b) union -> 'c
end
val map_union : ('a -> 'c) -> ('b -> 'd) -> ('a, 'b) union -> ('c, 'd) union
(** Alias for [Union.map] *)
type 'a until = 'a CSig.until = Stop of 'a | Cont of 'a
(** Used for browsable-until structures. *)
type ('a, 'b) eq = ('a, 'b) CSig.eq = Refl : ('a, 'a) eq
val sym : ('a, 'b) eq -> ('b, 'a) eq
(** Helpers to write comparison functions *)
module Compare : sig
type list = [] | (::) : (('a -> 'a -> int) * 'a * 'a) * list -> list
val compare : list -> int
(** Compare the elements in the order they are given using the
provided comparison function until the first non-zero result. *)
end
val open_utf8_file_in : string -> in_channel
(** Open an utf-8 encoded file and skip the byte-order mark if any. *)
val set_temporary_memory : unit -> ('a -> 'a) * (unit -> 'a)
(** A trick which can typically be used to store on the fly the
computation of values in the "when" clause of a "match" then
retrieve the evaluated result in the r.h.s of the clause *)
|
