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|
(***********************************************************************)
(* *)
(* OCaml *)
(* *)
(* Xavier Leroy, projet Cristal, INRIA Rocquencourt *)
(* *)
(* Copyright 1996 Institut National de Recherche en Informatique et *)
(* en Automatique. All rights reserved. This file is distributed *)
(* under the terms of the GNU Library General Public License, with *)
(* the special exception on linking described in file ../LICENSE. *)
(* *)
(***********************************************************************)
(* $Id$ *)
(** Character operations. *)
external code : char -> int = "%identity"
(** Return the ASCII code of the argument. *)
val chr : int -> char
(** Return the character with the given ASCII code.
Raise [Invalid_argument "Char.chr"] if the argument is
outside the range 0--255. *)
val escaped : char -> string
(** Return a string representing the given character,
with special characters escaped following the lexical conventions
of OCaml. *)
val lowercase : char -> char
(** Convert the given character to its equivalent lowercase character. *)
val uppercase : char -> char
(** Convert the given character to its equivalent uppercase character. *)
type t = char
(** An alias for the type of characters. *)
val compare: t -> t -> int
(** The comparison function for characters, with the same specification as
{!Pervasives.compare}. Along with the type [t], this function [compare]
allows the module [Char] to be passed as argument to the functors
{!Set.Make} and {!Map.Make}. *)
(**/**)
(* The following is for system use only. Do not call directly. *)
external unsafe_chr : int -> char = "%identity"
|
