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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 . C A S E _ U T I L                      --
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--                                                                          --
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--                                 B o d y                                  --
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--                                                                          --
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--                     Copyright (C) 1995-2010, AdaCore                     --
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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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pragma Compiler_Unit;
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package body System.Case_Util is
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   --------------
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   -- To_Lower --
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   --------------
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   function To_Lower (A : Character) return Character is
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      A_Val : constant Natural := Character'Pos (A);
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   begin
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      if A in 'A' .. 'Z'
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        or else A_Val in 16#C0# .. 16#D6#
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        or else A_Val in 16#D8# .. 16#DE#
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      then
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         return Character'Val (A_Val + 16#20#);
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      else
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         return A;
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      end if;
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   end To_Lower;
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   procedure To_Lower (A : in out String) is
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   begin
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      for J in A'Range loop
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         A (J) := To_Lower (A (J));
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      end loop;
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   end To_Lower;
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   --------------
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   -- To_Mixed --
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   --------------
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   procedure To_Mixed (A : in out String) is
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      Ucase : Boolean := True;
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   begin
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      for J in A'Range loop
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         if Ucase then
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            A (J) := To_Upper (A (J));
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         else
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            A (J) := To_Lower (A (J));
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         end if;
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         Ucase := A (J) = '_';
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      end loop;
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   end To_Mixed;
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   --------------
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   -- To_Upper --
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   --------------
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   function To_Upper (A : Character) return Character is
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      A_Val : constant Natural := Character'Pos (A);
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   begin
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      if A in 'a' .. 'z'
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        or else A_Val in 16#E0# .. 16#F6#
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        or else A_Val in 16#F8# .. 16#FE#
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      then
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         return Character'Val (A_Val - 16#20#);
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      else
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         return A;
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      end if;
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   end To_Upper;
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   procedure To_Upper (A : in out String) is
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   begin
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      for J in A'Range loop
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         A (J) := To_Upper (A (J));
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      end loop;
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   end To_Upper;
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end System.Case_Util;

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