---------------------------------------------------------------------
-----------
--                                                                          --
--                           OCARINA COMPONENTS                             --
--                                                                          --
--          O C A R I N A . A A D L . P A R S E R . A N N E X E S           --
--                                                                          --
--                                 B o d y                                  --
--                                                                          --
--               Copyright (C) 2004-2006, GET-Telecom Paris.                --
--                                                                          --
-- Ocarina  is free software;  you  can  redistribute  it and/or  modify    --
-- it under terms of the GNU General Public License as published by the     --
-- Free Software Foundation; either version 2, or (at your option) any      --
-- later version. Ocarina 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 Ocarina; see file COPYING.   --
-- If not, write to the Free Software Foundation, 51 Franklin Street, Fifth --
-- Floor, Boston, MA 02111-1301, 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.                                       --
--                                                                          --
--                 Ocarina is maintained by the Ocarina team                --
--                       (ocarina-users@listes.enst.fr)                     --
--                                                                          --
------------------------------------------------------------------------------

with Locations;
with Ocarina.AADL.Tokens;
with Ocarina.AADL.Lexer;
with Ocarina.AADL.Parser.Identifiers;
with Ocarina.Builder.Annexes;

package body Ocarina.AADL.Parser.Annexes is

   function P_Annex
     (Namespace           : Types.Node_Id;
      Code                : Parsing_Code;
      Private_Declaration : Boolean)
      return                Node_Id;
   --  Parse Annex_Library or Annex_Subclause, current token must be 'annex'

   -------------
   -- P_Annex --
   -------------

   function P_Annex
     (Namespace           : Types.Node_Id;
      Code                : Parsing_Code;
      Private_Declaration : Boolean)
      return                Node_Id
   is
      use Tokens;
      use Lexer;
      use Locations;
      use Ocarina.AADL.Parser.Identifiers;
      use Ocarina.Builder.Annexes;

      Annex          : Node_Id;      --  output
      Identifier     : Node_Id;
      Loc            : Location;
      Annex_Content  : Name_Id;
      Annex_Location : constant Location := Token_Location;
   begin

      Identifier := P_Identifier (No_Node);
      if Identifier = No_Node then
         DPE (Code, T_Identifier);
         Skip_Tokens ((T_End_Annex, T_Semicolon));
         return No_Node;
      end if;

      Scan_Token;
      if Token /= T_Begin_Annex then
         DPE (Code, T_Begin_Annex);
         Skip_Tokens ((T_End_Annex, T_Semicolon));
         return No_Node;
      end if;

      Save_Lexer (Loc);
      Scan_Raw_Text (T_End_Annex);
      Annex_Content := Raw_Text_Value;

      Scan_Token;
      if Token /= T_End_Annex then
         DPE (Code, T_End_Annex);
         Skip_Tokens (T_Semicolon);
         return No_Node;
      end if;

      Save_Lexer (Loc);
      Scan_Token;
      if Token /= T_Semicolon then
         DPE (Code, T_Semicolon);
         Restore_Lexer (Loc);
         return No_Node;
      end if;

      if Code = PC_Annex_Library then
         Annex :=
            Add_New_Annex_Library
              (Annex_Location,
               Identifier,
               Namespace,
               Is_Private => Private_Declaration);
      else
         Annex :=
            Add_New_Annex_Subclause (Annex_Location, Identifier, Namespace);
      end if;

      if Annex /= No_Node
        and then Set_Annex_Content (Annex, Annex_Content)
      then
         return Annex;
      else
         return No_Node;
      end if;
   end P_Annex;

   ---------------------
   -- P_Annex_Library --
   ---------------------

   --  annex_library ::=
   --     annex annex_identifier {**
   --        annex_specific_reusable_constructs
   --     **} ;

   function P_Annex_Library
     (Namespace           : Types.Node_Id;
      Private_Declaration : Boolean := False)
      return                Node_Id
   is
   begin
      return P_Annex (Namespace, PC_Annex_Library, Private_Declaration);
   end P_Annex_Library;

   -----------------------
   -- P_Annex_Subclause --
   -----------------------

   --  annex_subclause ::=
   --     annex annex_identifier {**
   --        annex_specific_language_constructs
   --     **} ;

   function P_Annex_Subclause (Namespace : Types.Node_Id) return Node_Id is
   begin
      return P_Annex (Namespace, PC_Annex_Subclause, False);
   end P_Annex_Subclause;

end Ocarina.AADL.Parser.Annexes;