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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) *)
(************************************************************************)
(** 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 *)
(** 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 drop_simple_quotes : string -> string
(** Remove the eventual first surrounding simple quotes of a string. *)
val quote_coq_string : string -> string
(** Quote a string according to Coq conventions (i.e. doubling
double quotes and surrounding by double quotes) *)
val unquote_coq_string : string -> string option
(** Unquote a quoted string according to Coq conventions
(i.e. removing surrounding double quotes and undoubling double
quotes); returns [None] if not a quoted string *)
val html_escape : string -> string
(** replace HTML reserved characters with escape sequences,
e.g. `&` -> "&" *)
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 lplural : _ list -> string -> string
(** [lplural l s] is [plural (List.length l) s]. *)
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 is_sub : string -> string -> int -> bool
(** [is_sub p s off] tests whether [s] contains [p] at offset [off]. *)
val is_prefix : string -> string -> bool
(** [is_prefix p s] tests whether [p] is a prefix of [s]. *)
val is_suffix : string -> string -> bool
(** [is_suffix suf s] tests whether [suf] is a suffix of [s]. *)
(** {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 Pred : Predicate.S with type elt = t
module List : CList.MonoS with type elt = t
(** Association lists with [string] as keys *)
val hcons : string -> string
(** Hashconsing on [string] *)
end
include ExtS
|
