1 ------------------------------------------------------------------------------
3 -- GNAT RUNTIME COMPONENTS --
5 -- G N A T . C A S E _ U T I L --
9 -- Copyright (C) 1995-1999 Ada Core Technologies, 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 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, 59 Temple Place - Suite 330, Boston, --
20 -- MA 02111-1307, 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 is maintained by Ada Core Technologies Inc (http://www.gnat.com). --
31 ------------------------------------------------------------------------------
33 package body GNAT.Case_Util is
39 function To_Lower (A : Character) return Character is
40 A_Val : constant Natural := Character'Pos (A);
44 or else A_Val in 16#C0# .. 16#D6#
45 or else A_Val in 16#D8# .. 16#DE#
47 return Character'Val (A_Val + 16#20#);
53 procedure To_Lower (A : in out String) is
56 A (J) := To_Lower (A (J));
64 procedure To_Mixed (A : in out String) is
65 Ucase : Boolean := True;
70 A (J) := To_Upper (A (J));
72 A (J) := To_Lower (A (J));
83 function To_Upper (A : Character) return Character is
84 A_Val : constant Natural := Character'Pos (A);
88 or else A_Val in 16#E0# .. 16#F6#
89 or else A_Val in 16#F8# .. 16#FE#
91 return Character'Val (A_Val - 16#20#);
97 procedure To_Upper (A : in out String) is
100 A (J) := To_Upper (A (J));