------------------------------------------------------------------------------
--                                                                          --
--                            Matreshka Project                             --
--                                                                          --
--         Localization, Internationalization, Globalization for Ada        --
--                                                                          --
--                              Tools Component                             --
--                                                                          --
------------------------------------------------------------------------------
--                                                                          --
-- Copyright © 2010, Vadim Godunko <vgodunko@gmail.com>                     --
-- All rights reserved.                                                     --
--                                                                          --
-- Redistribution and use in source and binary forms, with or without       --
-- modification, are permitted provided that the following conditions       --
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--  * Redistributions of source code must retain the above copyright        --
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--    notice, this list of conditions and the following disclaimer in the   --
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--                                                                          --
--  * Neither the name of the Vadim Godunko, IE nor the names of its        --
--    contributors may be used to endorse or promote products derived from  --
--    this software without specific prior written permission.              --
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-- THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS      --
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--                                                                          --
------------------------------------------------------------------------------
--  $Revision: 527 $ $Date: 2010-06-16 14:22:28 +0400 (Ср, 16 июн 2010) $
------------------------------------------------------------------------------
with Ada.Command_Line;
with Ada.Directories;
with Ada.Integer_Wide_Text_IO;
with Ada.Strings.Wide_Unbounded.Wide_Text_IO;
with Ada.Wide_Text_IO;

with Token_Extractor;

package body Token_Generator is

   use Ada.Integer_Wide_Text_IO;
   use Ada.Strings.Wide_Unbounded.Wide_Text_IO;
   use Ada.Wide_Text_IO;
   use Token_Extractor;

   function Tokens_File_Name return String;
   --  Returns file name of the output file.

   function Tokens_Template_File_Name return String;
   --  Returns file name of the input template file.

   ----------------------------
   -- Generate_Parser_Tokens --
   ----------------------------

   procedure Generate_Parser_Tokens is
      Input  : File_Type;
      Output : File_Type;
      Buffer : Wide_String (1 .. 1024);
      Last   : Natural;

   begin
      Open (Input, In_File, Tokens_Template_File_Name, "wcem=8");
      Create (Output, Out_File, Tokens_File_Name, "wcem=8");

      while not End_Of_File (Input) loop
         Get_Line (Input, Buffer, Last);

         if Buffer (1 .. Last) = "%%" then
            Put_Line (Output, "   type Token is");

            for J in 1 .. Natural (Tokens.Length) loop
               if J = 1 then
                  Put (Output, "    (");

               else
                  Put_Line (Output, ",");
                  Put (Output, "     ");
               end if;

               Put (Output, Tokens.Element (J));
            end loop;

            Put_Line (Output, ");");

         else
            Put_Line (Output, Buffer (1 .. Last));
         end if;
      end loop;

      Close (Output);
      Close (Input);
   end Generate_Parser_Tokens;

   ----------------------
   -- Tokens_File_Name --
   ----------------------

   function Tokens_File_Name return String is
      Template : constant String
        := Ada.Directories.Simple_Name (Tokens_Template_File_Name);

   begin
      return Template (Template'First .. Template'Last - 3);
   end Tokens_File_Name;

   -------------------------------
   -- Tokens_Template_File_Name --
   -------------------------------

   function Tokens_Template_File_Name return String is
   begin
      return Ada.Command_Line.Argument (3);
   end Tokens_Template_File_Name;

end Token_Generator;