(*****************************************************************************
 * su4sml --- a SML repository for managing (Secure)UML/OCL models
 *             http://projects.brucker.ch/su4sml/
 *                                                                            
 * StringHandling.sml --- 
 * This file is part of su4sml.
 *
 * Copyright (c) 2005-2007, ETH Zurich, Switzerland
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 ******************************************************************************)
(* $Id$ *)

(** convenience functions for handling strings. *)
structure StringHandling =
struct

(** returns the string in all caps. *)
fun toUpper (s:string) = String.map Char.toUpper s

(** returns the string in all non-caps. *)
fun toLower (s:string) = String.map Char.toLower s

(** returns the uncapitalized string. 
 * Returns the given string with the first letter changed to lower case
 *)
fun uncapitalize (s:string) = let val sl = String.explode s
 		              in
 			          String.implode ((Char.toLower (hd sl))::(tl sl))
 		              end
                              
(** returns the capitalized string. 
 * Returns the given string with the first letter changed to upper case
 *)
fun capitalize (s:string) = let val sl = String.explode s
 		            in
 		                String.implode ((Char.toUpper (hd sl))::(tl sl))
		            end

                            
end
