File : s-casuti.adb
1 ------------------------------------------------------------------------------
2 -- --
3 -- GNAT RUN-TIME COMPONENTS --
4 -- --
5 -- S Y S T E M . C A S E _ U T I L --
6 -- --
7 -- B o d y --
8 -- --
9 -- Copyright (C) 1995-2013, AdaCore --
10 -- --
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. --
17 -- --
18 -- --
19 -- --
20 -- --
21 -- --
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/>. --
26 -- --
27 -- GNAT was originally developed by the GNAT team at New York University. --
28 -- Extensive contributions were provided by Ada Core Technologies Inc. --
29 -- --
30 ------------------------------------------------------------------------------
31
32 pragma Compiler_Unit_Warning;
33
34 package body System.Case_Util is
35
36 --------------
37 -- To_Lower --
38 --------------
39
40 function To_Lower (A : Character) return Character is
41 A_Val : constant Natural := Character'Pos (A);
42
43 begin
44 if A in 'A' .. 'Z'
45 or else A_Val in 16#C0# .. 16#D6#
46 or else A_Val in 16#D8# .. 16#DE#
47 then
48 return Character'Val (A_Val + 16#20#);
49 else
50 return A;
51 end if;
52 end To_Lower;
53
54 procedure To_Lower (A : in out String) is
55 begin
56 for J in A'Range loop
57 A (J) := To_Lower (A (J));
58 end loop;
59 end To_Lower;
60
61 --------------
62 -- To_Mixed --
63 --------------
64
65 procedure To_Mixed (A : in out String) is
66 Ucase : Boolean := True;
67
68 begin
69 for J in A'Range loop
70 if Ucase then
71 A (J) := To_Upper (A (J));
72 else
73 A (J) := To_Lower (A (J));
74 end if;
75
76 Ucase := A (J) = '_';
77 end loop;
78 end To_Mixed;
79
80 --------------
81 -- To_Upper --
82 --------------
83
84 function To_Upper (A : Character) return Character is
85 A_Val : constant Natural := Character'Pos (A);
86
87 begin
88 if A in 'a' .. 'z'
89 or else A_Val in 16#E0# .. 16#F6#
90 or else A_Val in 16#F8# .. 16#FE#
91 then
92 return Character'Val (A_Val - 16#20#);
93 else
94 return A;
95 end if;
96 end To_Upper;
97
98 procedure To_Upper (A : in out String) is
99 begin
100 for J in A'Range loop
101 A (J) := To_Upper (A (J));
102 end loop;
103 end To_Upper;
104
105 end System.Case_Util;