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[/] [openrisc/] [trunk/] [gnu-dev/] [or1k-gcc/] [gcc/] [ada/] [s-widwch.adb] - Blame information for rev 706

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1 706 jeremybenn
------------------------------------------------------------------------------
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--                                                                          --
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--                         GNAT RUN-TIME COMPONENTS                         --
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--                                                                          --
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--                     S Y S T E M . W I D _ W C H A R                      --
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--                                                                          --
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--                                 B o d y                                  --
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--                                                                          --
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--          Copyright (C) 1992-2009, Free Software Foundation, Inc.         --
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--                                                                          --
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-- GNAT is free software;  you can  redistribute it  and/or modify it under --
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-- terms of the  GNU General Public License as published  by the Free Soft- --
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-- ware  Foundation;  either version 3,  or (at your option) any later ver- --
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-- sion.  GNAT is distributed in the hope that it will be useful, but WITH- --
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-- OUT ANY WARRANTY;  without even the  implied warranty of MERCHANTABILITY --
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-- or FITNESS FOR A PARTICULAR PURPOSE.                                     --
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--                                                                          --
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-- As a special exception under Section 7 of GPL version 3, you are granted --
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-- additional permissions described in the GCC Runtime Library Exception,   --
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-- version 3.1, as published by the Free Software Foundation.               --
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--                                                                          --
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-- You should have received a copy of the GNU General Public License and    --
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-- a copy of the GCC Runtime Library Exception along with this program;     --
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-- see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see    --
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-- <http://www.gnu.org/licenses/>.                                          --
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--                                                                          --
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-- GNAT was originally developed  by the GNAT team at  New York University. --
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-- Extensive contributions were provided by Ada Core Technologies Inc.      --
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--                                                                          --
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------------------------------------------------------------------------------
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package body System.Wid_WChar is
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   --------------------------
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   -- Width_Wide_Character --
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   --------------------------
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   function Width_Wide_Character
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     (Lo, Hi : Wide_Character) return Natural
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   is
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      W : Natural;
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      P : Natural;
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   begin
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      W := 0;
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      for C in Lo .. Hi loop
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         P := Wide_Character'Pos (C);
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         --  Here if we find a character in wide character range
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         --  Width is max value (12) for Hex_hhhhhhhh
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         if P > 16#FF# then
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            return 12;
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            --  If we are in character range then use length of character image
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         else
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            declare
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               S : constant String := Character'Image (Character'Val (P));
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            begin
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               W := Natural'Max (W, S'Length);
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            end;
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         end if;
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      end loop;
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      return W;
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   end Width_Wide_Character;
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   -------------------------------
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   -- Width_Wide_Wide_Character --
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   -------------------------------
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   function Width_Wide_Wide_Character
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     (Lo, Hi : Wide_Wide_Character) return Natural
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   is
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      W : Natural;
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      P : Natural;
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   begin
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      W := 0;
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      for C in Lo .. Hi loop
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         P := Wide_Wide_Character'Pos (C);
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         --  Here if we find a character in wide wide character range.
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         --  Width is max value (12) for Hex_hhhhhhhh
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         if P > 16#FF# then
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            W := 12;
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         --  If we are in character range then use length of character image
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         else
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            declare
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               S : constant String := Character'Image (Character'Val (P));
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            begin
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               W := Natural'Max (W, S'Length);
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            end;
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         end if;
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      end loop;
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      return W;
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   end Width_Wide_Wide_Character;
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end System.Wid_WChar;

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