opentoken_6.0.3_b278f6ad/src/opentoken-recognizer-html_entity.ads

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-- ----------------------------------------------------------------------------
--
--  Copyright (C) 1999 Christoph Karl Walter Grein
--
--  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.
-- ----------------------------------------------------------------------------

with Ada.Strings.Maps;
package OpenToken.Recognizer.HTML_Entity is

   -------------------------------------------------------------------------
   --  A recognizer for HTML entities like
   --   "©"  named case-sensitive reference,
   --   "©"  numeric decimal reference,
   --   "©"  numeric hexadecimal reference case-insensitive,
   --  (all denoting the same character, the copyright sign).
   --  See the HTML 4.0 Reference for more information.
   -------------------------------------------------------------------------

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

   function Get return Instance;

private

   type State_Id is (Escape, First, Number, Rest, Done);

   type Instance is new OpenToken.Recognizer.Instance with record
      --  The finite state machine state
      State : State_Id := Escape;
      Set   : Ada.Strings.Maps.Character_Set;
   end record;

   overriding procedure Clear (The_Token : in out Instance);

   overriding procedure
     Analyze (The_Token : in out Instance;
              Next_Char : in     Character;
              Verdict   :    out OpenToken.Recognizer.Analysis_Verdict);

end OpenToken.Recognizer.HTML_Entity;