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--  Abstract :
--
--  Ada style based integer or real numeric literals.
--
--  Copyright (C) 2014 Stephen Leake
--
--  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 3, 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.

pragma License (Modified_GPL);

private with OpenToken.Recognizer.Extended_Digits;
package OpenToken.Recognizer.Based_Integer_Real_Ada is

   type Instance is new OpenToken.Recognizer.Instance with private;

   function Get return Instance;

private

   type State_ID is (Base, Fore, Aft, Exponent_E, Exponent_Sign, Exponent, Done);

   type Instance is new OpenToken.Recognizer.Instance with record
      Number_Recognizer   : Extended_Digits.Instance;
      Last_Digits_Verdict : Analysis_Verdict;
      State               : State_ID;
      Base                : Natural;
      Need_Hash           : Boolean;
   end record;

   overriding procedure Clear (Token : in out Instance);
   overriding procedure Analyze
     (Token     : in out Instance;
      Next_Char : in     Character;
      Verdict   :    out Analysis_Verdict);

end OpenToken.Recognizer.Based_Integer_Real_Ada;