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-- GHDL driver - main part.
-- Copyright (C) 2002, 2003, 2004, 2005 Tristan Gingold
--
-- GHDL 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.
--
-- GHDL 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
-- along with GCC; see the file COPYING. If not, write to the Free
-- Software Foundation, 59 Temple Place - Suite 330, Boston, MA
-- 02111-1307, USA.
with GNAT.OS_Lib; use GNAT.OS_Lib;
with Errorout;
package Ghdlmain is
type Command_Type;
type Command_Acc is access all Command_Type'Class;
type Command_Type is abstract tagged record
Next : Command_Acc;
end record;
-- Return TRUE iff CMD handle action ACTION.
function Decode_Command (Cmd : Command_Type; Name : String) return Boolean
is abstract;
-- Initialize the command, before decoding actions.
procedure Init (Cmd : in out Command_Type);
-- Option_OK: OPTION is handled.
-- Option_Bad: OPTION is unknown.
-- Option_Arg_Req: OPTION requires an argument. Must be set only when
-- ARG = "", the manager will recall Decode_Option.
-- Option_Arg: OPTION used the argument.
type Option_Res is
(Option_Bad, Option_Ok, Option_Arg, Option_Arg_Req, Option_End);
procedure Decode_Option (Cmd : in out Command_Type;
Option : String;
Arg : String;
Res : out Option_Res);
-- Get a one-line help for the command.
function Get_Short_Help (Cmd : Command_Type) return String
is abstract;
-- Disp detailled help.
procedure Disp_Long_Help (Cmd : Command_Type);
-- Perform the action.
procedure Perform_Action (Cmd : in out Command_Type; Args : Argument_List)
is abstract;
-- Register a command.
procedure Register_Command (Cmd : Command_Acc);
-- Disp MSG on the standard output with the command name.
procedure Error (Msg : String);
-- May be raise by perform_action if the arguments are bad.
Option_Error : exception renames Errorout.Option_Error;
-- Action failed.
Compile_Error : exception;
-- Exec failed: either the program was not found, or failed.
Exec_Error : exception;
procedure Main;
-- Additionnal one-line message displayed by the --version command,
-- if defined.
-- Used to customize.
type String_Cst_Acc is access constant String;
Version_String : String_Cst_Acc := null;
-- Registers all commands in this package.
procedure Register_Commands;
end Ghdlmain;
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