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-------------------------------------------------------------------------------
--
-- Copyright (C) 2000 Ted Dennison
--
-- This file is part of the OpenToken package.
--
-- The OpenToken package is free software; you can redistribute it and/or
-- modify it under the terms of the GNU General Public License as published
-- by the Free Software Foundation; either version 2, or (at your option)
-- any later version. The OpenToken package is distributed in the hope that
-- it will be useful, but WITHOUT ANY WARRANTY; without even the implied
-- warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-- GNU General Public License for more details. You should have received
-- a copy of the GNU General Public License distributed with the OpenToken
-- package; see file GPL.txt. If not, write to the Free Software Foundation,
-- 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
--
-- As a special exception, if other files instantiate generics from this
-- unit, or you link this unit with other files to produce an executable,
-- this unit does not by itself cause the resulting executable to be
-- covered by the GNU General Public License. This exception does not
-- however invalidate any other reasons why the executable file might be
-- covered by the GNU Public License.
--
-- Maintainer: Ted Dennison (dennison@telepath.com)
--
-- Update History:
-- $Log: asu_example_5_10.adb,v $
-- Revision 1.3 2000/08/07 00:25:58 Ted
-- moved to -run.adb
--
--
-------------------------------------------------------------------------------
with Ada.Text_IO;
-------------------------------------------------------------------------------
-- This example is an implementation of Example 5.10 from "Compilers
-- Principles, Techniques, and Tools" by Aho, Sethi, and Ullman (aka: "The
-- Dragon Book"). It demonstrates handling of synthesized attributes
-------------------------------------------------------------------------------
package body ASU_Example_5_10 is
--------------------------------------------------------------------------
-- Routine to print the value of the given Single integer token.
--------------------------------------------------------------------------
procedure Print_Value (New_Token : out Nonterminal.Class;
Source : in Token_List.Instance'Class;
To_ID : in Master_Token.Token_ID) is
begin
Ada.Text_IO.Put_Line
(Integer'Image
(Simple_Integer.Value
(Simple_Integer.Class
(Token_List.Token_Handle
(Token_List.Initial_Iterator(Source)
).all
)
)
)
);
Nonterminal.Synthesize_Self (New_Token => New_Token,
Source => Source,
To_ID => To_ID);
end Print_Value;
end ASU_Example_5_10;
|
