----------------------------------------------------------
----------------------
--                                                                          --
--                           OCARINA COMPONENTS                             --
--                                                                          --
--                  O C A R I N A . P N . M E S S A G E S                   --
--                                                                          --
--                                 B o d y                                  --
--                                                                          --
--                 Copyright (C) 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 Output;
with Ocarina.PN.Debug;
with GNAT.OS_Lib;

package body Ocarina.PN.Messages is

   -------------------
   -- Display_Error --
   -------------------

   procedure Display_Error
     (Message : String;
      Fatal   : Boolean;
      Warning : Boolean := False)
   is
      use Output;
      use GNAT.OS_Lib;
   begin
      Set_Standard_Error;
      Write_Str ("PN");

      if Fatal then
         Write_Str (" fatal");
      end if;

      if Warning then
         Write_Str (" warning : ");
      else
         Write_Str (" error : ");
      end if;

      Write_Line (Message);

      if Fatal then
         OS_Exit (2);
      end if;

      Set_Standard_Output;
   end Display_Error;

   ---------------------
   -- Display_Message --
   ---------------------

   procedure Display_Message (Message : String) is
      use Output;
   begin
      Set_Standard_Error;
      Write_Str ("PN: ");
      Write_Line (Message);
      Set_Standard_Output;
   end Display_Message;

   -----------------------------
   -- Display_Node_Kind_Error --
   -----------------------------

   function Display_Node_Kind_Error (Node : Types.Node_Id) return Boolean is
      use Types;
      use Ocarina.PN.Debug;
      use Output;
   begin
      Set_Standard_Error;
      W_Str ("Bad node kind: ");

      if Node /= No_Node then
         W_Node_Header (Node);
      else
         W_Line ("no node");
      end if;

      Set_Standard_Output;
      return False;
   end Display_Node_Kind_Error;

end Ocarina.PN.Messages;