(* Args.mod provide access to command line arguments. Copyright (C) 2001-2024 Free Software Foundation, Inc. Contributed by Gaius Mulley . This file is part of GNU Modula-2. GNU Modula-2 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. GNU Modula-2 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. Under Section 7 of GPL version 3, you are granted additional permissions described in the GCC Runtime Library Exception, version 3.1, as published by the Free Software Foundation. You should have received a copy of the GNU General Public License and a copy of the GCC Runtime Library Exception along with this program; see the files COPYING3 and COPYING.RUNTIME respectively. If not, see . *) IMPLEMENTATION MODULE Args ; FROM UnixArgs IMPORT GetArgC, GetArgV ; FROM ASCII IMPORT nul ; CONST MaxArgs = 255 ; MaxString = 4096 ; (* Source allows us to examine the ArgV contents. *) VAR Source: POINTER TO ARRAY [0..MaxArgs] OF POINTER TO ARRAY [0..MaxString] OF CHAR ; (* GetArg - returns the nth argument from the command line. The success of the operation is returned. *) PROCEDURE GetArg (VAR a: ARRAY OF CHAR; n: CARDINAL) : BOOLEAN ; VAR i : INTEGER ; High, j : CARDINAL ; BEGIN i := VAL (INTEGER, n) ; j := 0 ; High := HIGH(a) ; IF i < GetArgC () THEN Source := GetArgV () ; WHILE (j