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[/] [openrisc/] [trunk/] [gnu-stable/] [gcc-4.5.1/] [gcc/] [ada/] [s-wchcon.adb] - Rev 826

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------------------------------------------------------------------------------
--                                                                          --
--                         GNAT COMPILER COMPONENTS                         --
--                                                                          --
--                       S Y S T E M . W C H _ C O N                        --
--                                                                          --
--                                 B o d y                                  --
--                                                                          --
--          Copyright (C) 2005-2009, Free Software Foundation, Inc.         --
--                                                                          --
-- GNAT is free software;  you can  redistribute it  and/or modify it under --
-- terms of the  GNU General Public License as published  by the Free Soft- --
-- ware  Foundation;  either version 3,  or (at your option) any later ver- --
-- sion.  GNAT is distributed in the hope that it will be useful, but WITH- --
-- OUT ANY WARRANTY;  without even the  implied warranty of MERCHANTABILITY --
-- or FITNESS FOR A PARTICULAR PURPOSE.                                     --
--                                                                          --
-- As a special exception under Section 7 of GPL version 3, you are granted --
-- additional permissions described in the GCC Runtime Library Exception,   --
-- version 3.1, as published by the Free Software Foundation.               --
--                                                                          --
-- You should have received a copy of the GNU General Public License and    --
-- a copy of the GCC Runtime Library Exception along with this program;     --
-- see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see    --
-- <http://www.gnu.org/licenses/>.                                          --
--                                                                          --
-- GNAT was originally developed  by the GNAT team at  New York University. --
-- Extensive contributions were provided by Ada Core Technologies Inc.      --
--                                                                          --
------------------------------------------------------------------------------
 
pragma Compiler_Unit;
 
package body System.WCh_Con is
 
   ----------------------------
   -- Get_WC_Encoding_Method --
   ----------------------------
 
   function Get_WC_Encoding_Method (C : Character) return WC_Encoding_Method is
   begin
      for Method in WC_Encoding_Method loop
         if C = WC_Encoding_Letters (Method) then
            return Method;
         end if;
      end loop;
 
      raise Constraint_Error;
   end Get_WC_Encoding_Method;
 
   function Get_WC_Encoding_Method (S : String) return WC_Encoding_Method is
   begin
      if    S = "hex"       then
         return WCEM_Hex;
      elsif S = "upper"     then
         return WCEM_Upper;
      elsif S = "shift_jis" then
         return WCEM_Shift_JIS;
      elsif S = "euc"       then
         return WCEM_EUC;
      elsif S = "utf8"      then
         return WCEM_UTF8;
      elsif S = "brackets"  then
         return WCEM_Brackets;
      else
         raise Constraint_Error;
      end if;
   end Get_WC_Encoding_Method;
 
   --------------------------
   -- Is_Start_Of_Encoding --
   --------------------------
 
   function Is_Start_Of_Encoding
     (C  : Character;
      EM : WC_Encoding_Method) return Boolean
   is
   begin
      return (EM in WC_Upper_Half_Encoding_Method
               and then Character'Pos (C) >= 16#80#)
        or else (EM in WC_ESC_Encoding_Method and then C = ASCII.ESC);
   end Is_Start_Of_Encoding;
 
end System.WCh_Con;
 

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