1 ------------------------------------------------------------------------------
3 -- GNAT RUN-TIME COMPONENTS --
5 -- S Y S T E M . C A S E _ U T I L --
9 -- Copyright (C) 1995-2009, Free Software Foundation, Inc. --
11 -- GNAT is free software; you can redistribute it and/or modify it under --
12 -- terms of the GNU General Public License as published by the Free Soft- --
13 -- ware Foundation; either version 3, or (at your option) any later ver- --
14 -- sion. GNAT is distributed in the hope that it will be useful, but WITH- --
15 -- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY --
16 -- or FITNESS FOR A PARTICULAR PURPOSE. --
18 -- As a special exception under Section 7 of GPL version 3, you are granted --
19 -- additional permissions described in the GCC Runtime Library Exception, --
20 -- version 3.1, as published by the Free Software Foundation. --
22 -- You should have received a copy of the GNU General Public License and --
23 -- a copy of the GCC Runtime Library Exception along with this program; --
24 -- see the files COPYING3 and COPYING.RUNTIME respectively. If not, see --
25 -- <http://www.gnu.org/licenses/>. --
27 -- GNAT was originally developed by the GNAT team at New York University. --
28 -- Extensive contributions were provided by Ada Core Technologies Inc. --
30 ------------------------------------------------------------------------------
32 -- Simple casing functions
34 -- This package provides simple casing functions that do not require the
35 -- overhead of the full casing tables found in Ada.Characters.Handling.
37 -- Note that all the routines in this package are available to the user
38 -- via GNAT.Case_Util, which imports all the entities from this package.
40 pragma Warnings (Off);
44 package System.Case_Util is
47 -- Note: all the following functions handle the full Latin-1 set
49 function To_Upper (A : Character) return Character;
50 -- Converts A to upper case if it is a lower case letter, otherwise
51 -- returns the input argument unchanged.
53 procedure To_Upper (A : in out String);
54 -- Folds all characters of string A to upper case
56 function To_Lower (A : Character) return Character;
57 -- Converts A to lower case if it is an upper case letter, otherwise
58 -- returns the input argument unchanged.
60 procedure To_Lower (A : in out String);
61 -- Folds all characters of string A to lower case
63 procedure To_Mixed (A : in out String);
64 -- Converts A to mixed case (i.e. lower case, except for initial
65 -- character and any character after an underscore, which are
66 -- converted to upper case.