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--                                                                          --

--                         GNAT RUN-TIME COMPONENTS                         --

--                                                                          --

--                       G N A T . C A S E _ U T I L                        --

--                                                                          --

--                                 S p e c                                  --

--                                                                          --

--                     Copyright (C) 1995-2005, AdaCore                     --

--                                                                          --

-- GNAT is free software;  you can  redistribute it  and/or modify it under --

-- terms of the  GNU General Public License as published  by the Free Soft- --

-- ware  Foundation;  either version 2,  or (at your option) any later ver- --

-- sion.  GNAT is distributed in the hope that it will be useful, but WITH- --

-- OUT ANY WARRANTY;  without even the  implied warranty of MERCHANTABILITY --

-- or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License --

-- for  more details.  You should have  received  a copy of the GNU General --

-- Public License  distributed with GNAT;  see file COPYING.  If not, write --

-- to  the  Free Software Foundation,  51  Franklin  Street,  Fifth  Floor, --

-- Boston, MA 02110-1301, USA.                                              --

--                                                                          --

-- As a special exception,  if other files  instantiate  generics from this --

-- unit, or you link  this unit with other files  to produce an executable, --

-- this  unit  does not  by itself cause  the resulting  executable  to  be --

-- covered  by the  GNU  General  Public  License.  This exception does not --

-- however invalidate  any other reasons why  the executable file  might be --

-- covered by the  GNU Public License.                                      --

--                                                                          --

-- GNAT was originally developed  by the GNAT team at  New York University. --

-- Extensive contributions were provided by Ada Core Technologies Inc.      --

--                                                                          --

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--  Simple casing functions

--  This package provides simple casing functions that do not require the

--  overhead of the full casing tables found in Ada.Characters.Handling.

--  Note: actual code is found in System.Case_Util, which is used internally

--  by the GNAT run time. Applications programs should always use this package

--  rather than using System.Case_Util directly.

with System.Case_Util;

package GNAT.Case_Util is

   pragma Pure;

   pragma Elaborate_Body;

   --  The elaborate body is because we have a dummy body to deal with

   --  bootstrap path problems (we used to have a real body, and now we don't

   --  need it any more, but the bootstrap requires that we have a dummy body,

   --  since otherwise the old body gets picked up.

   --  Note: all the following functions handle the full Latin-1 set

   function To_Upper (A : Character) return Character

     renames System.Case_Util.To_Upper;

   --  Converts A to upper case if it is a lower case letter, otherwise

   --  returns the input argument unchanged.

   procedure To_Upper (A : in out String)

     renames System.Case_Util.To_Upper;

   --  Folds all characters of string A to upper csae

   function To_Lower (A : Character) return Character

     renames System.Case_Util.To_Lower;

   --  Converts A to lower case if it is an upper case letter, otherwise

   --  returns the input argument unchanged.

   procedure To_Lower (A : in out String)

     renames System.Case_Util.To_Lower;

   --  Folds all characters of string A to lower case

   procedure To_Mixed (A : in out String)

     renames System.Case_Util.To_Mixed;

   --  Converts A to mixed case (i.e. lower case, except for initial

   --  character and any character after an underscore, which are

   --  converted to upper case.

end GNAT.Case_Util;