------------------------------------------------------------------------------
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--                            Matreshka Project                             --
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--         Localization, Internationalization, Globalization for Ada        --
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--                        Runtime Library Component                         --
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-- Copyright © 2010-2011, Vadim Godunko <vgodunko@gmail.com>                --
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------------------------------------------------------------------------------
--  $Revision: 1287 $ $Date: 2011-01-10 14:58:22 +0300 (Mon, 10 Jan 2011) $
------------------------------------------------------------------------------

package Matreshka.Internals.Text_Codecs.SHIFTJIS is

   pragma Preelaborate;

   type SHIFTJIS_Decoder is new Abstract_Decoder with private;

   overriding function Is_Error (Self : SHIFTJIS_Decoder) return Boolean;

   overriding function Is_Mailformed (Self : SHIFTJIS_Decoder) return Boolean;

   overriding procedure Decode_Append
    (Self   : in out SHIFTJIS_Decoder;
     Data   : Ada.Streams.Stream_Element_Array;
     String : in out Matreshka.Internals.Strings.Shared_String_Access);

   function Decoder (Mode : Decoder_Mode) return Abstract_Decoder'Class;

private

   type SHIFTJIS_Meta_Class is mod 2 ** 8;
   type SHIFTJIS_DFA_State is mod 2 ** 8;

   type SHIFTJIS_Decoder is new Abstract_Decoder with record
      State : SHIFTJIS_DFA_State;
      First : Ada.Streams.Stream_Element;
   end record;

   type SHIFTJIS_Code_Point_Array is
     array (Ada.Streams.Stream_Element)
       of Matreshka.Internals.Unicode.Code_Point;

   type SHIFTJIS_Code_Point_Array_Access is
     access constant SHIFTJIS_Code_Point_Array;

   type SHIFTJIS_Expansion_Pair is record
      First  : Matreshka.Internals.Unicode.Code_Point;
      Second : Matreshka.Internals.Unicode.Code_Point;
   end record;

end Matreshka.Internals.Text_Codecs.SHIFTJIS;
