1 ------------------------------------------------------------------------------
3 -- GNAT RUN-TIME COMPONENTS --
5 -- S Y S T E M . W I D _ W C H A R --
9 -- Copyright (C) 1992-2005 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 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
.Wid_WChar
is
36 --------------------------
37 -- Width_Wide_Character --
38 --------------------------
40 function Width_Wide_Character
41 (Lo
, Hi
: Wide_Character) return Natural
48 for C
in Lo
.. Hi
loop
49 P
:= Wide_Character'Pos (C
);
51 -- Here if we find a character in wide character range
52 -- Width is max value (12) for Hex_hhhhhhhh
57 -- If we are in character range then use length of character image
61 S
: constant String := Character'Image (Character'Val (P
));
63 W
:= Natural'Max (W
, S
'Length);
69 end Width_Wide_Character
;
71 -------------------------------
72 -- Width_Wide_Wide_Character --
73 -------------------------------
75 function Width_Wide_Wide_Character
76 (Lo
, Hi
: Wide_Wide_Character
) return Natural
83 for C
in Lo
.. Hi
loop
84 P
:= Wide_Wide_Character
'Pos (C
);
86 -- Here if we find a character in wide wide character range.
87 -- Width is max value (12) for Hex_hhhhhhhh
92 -- If we are in character range then use length of character image
96 S
: constant String := Character'Image (Character'Val (P
));
98 W
:= Natural'Max (W
, S
'Length);
104 end Width_Wide_Wide_Character
;
106 end System
.Wid_WChar
;