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|
(************************************************************************)
(* * The Coq Proof Assistant / The Coq Development Team *)
(* v * INRIA, CNRS and contributors - Copyright 1999-2018 *)
(* <O___,, * (see CREDITS file for the list of authors) *)
(* \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) *)
(************************************************************************)
(** Module type [S] is the one from OCaml Stdlib. *)
module type S = module type of String
module type ExtS =
sig
include S
(** We include the standard library *)
[@@@ocaml.warning "-3"] (* [@@noalloc] since 4.03.0 GPR#240 *)
external equal : string -> string -> bool = "caml_string_equal" "noalloc"
[@@@ocaml.warning "+3"]
(** Equality on strings *)
val hash : string -> int
(** Hashing on strings. Should be compatible with generic one. *)
val is_empty : string -> bool
(** Test whether a string is empty. *)
val explode : string -> string list
(** [explode "x1...xn"] returns [["x1"; ...; "xn"]] *)
val implode : string list -> string
(** [implode [s1; ...; sn]] returns [s1 ^ ... ^ sn] *)
val strip : string -> string
(** Remove the surrounding blank characters from a string *)
val drop_simple_quotes : string -> string
(** Remove the eventual first surrounding simple quotes of a string. *)
val string_index_from : string -> int -> string -> int
(** As [index_from], but takes a string instead of a char as pattern argument *)
val string_contains : where:string -> what:string -> bool
(** As [contains], but takes a string instead of a char as pattern argument *)
val plural : int -> string -> string
(** [plural n s] adds a optional 's' to the [s] when [2 <= n]. *)
val conjugate_verb_to_be : int -> string
(** [conjugate_verb_to_be] returns "is" when [n=1] and "are" otherwise *)
val ordinal : int -> string
(** Generate the ordinal number in English. *)
val split : char -> string -> string list
(** [split c s] splits [s] into sequences separated by [c], excluded. *)
val is_sub : string -> string -> int -> bool
(** [is_sub p s off] tests whether [s] contains [p] at offset [off]. *)
(** {6 Generic operations} **)
module Set : Set.S with type elt = t
(** Finite sets on [string] *)
module Map : CMap.ExtS with type key = t and module Set := Set
(** Finite maps on [string] *)
module List : CList.MonoS with type elt = t
(** Association lists with [string] as keys *)
val hcons : string -> string
(** Hashconsing on [string] *)
end
include ExtS
|
