1 ------------------------------------------------------------------------------
3 -- GNAT RUN-TIME COMPONENTS --
5 -- S Y S T E M . C A S E _ U T I L --
9 -- Copyright (C) 1995-2005 AdaCore --
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 2, 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. See the GNU General Public License --
17 -- for more details. You should have received a copy of the GNU General --
18 -- Public License distributed with GNAT; see file COPYING. If not, write --
19 -- to the Free Software Foundation, 51 Franklin Street, Fifth Floor, --
20 -- Boston, MA 02110-1301, USA. --
22 -- As a special exception, if other files instantiate generics from this --
23 -- unit, or you link this unit with other files to produce an executable, --
24 -- this unit does not by itself cause the resulting executable to be --
25 -- covered by the GNU General Public License. This exception does not --
26 -- however invalidate any other reasons why the executable file might be --
27 -- covered by the GNU Public License. --
29 -- GNAT was originally developed by the GNAT team at New York University. --
30 -- Extensive contributions were provided by Ada Core Technologies Inc. --
32 ------------------------------------------------------------------------------
34 package body System.Case_Util is
40 function To_Lower (A : Character) return Character is
41 A_Val : constant Natural := Character'Pos (A);
45 or else A_Val in 16#C0# .. 16#D6#
46 or else A_Val in 16#D8# .. 16#DE#
48 return Character'Val (A_Val + 16#20#);
54 procedure To_Lower (A : in out String) is
57 A (J) := To_Lower (A (J));
65 procedure To_Mixed (A : in out String) is
66 Ucase : Boolean := True;
71 A (J) := To_Upper (A (J));
73 A (J) := To_Lower (A (J));
84 function To_Upper (A : Character) return Character is
85 A_Val : constant Natural := Character'Pos (A);
89 or else A_Val in 16#E0# .. 16#F6#
90 or else A_Val in 16#F8# .. 16#FE#
92 return Character'Val (A_Val - 16#20#);
98 procedure To_Upper (A : in out String) is
100 for J in A'Range loop
101 A (J) := To_Upper (A (J));
105 end System.Case_Util;