Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!csd4.milw.wisc.edu!bbn!oberon!sm.unisys.com!csun!csuna!abcscnuk
From: abcscnuk@csuna.csun.edu (Naoto Kimura)
Newsgroups: comp.lang.pascal
Subject: Re: Programming ... Pascal
Keywords: Pascal, Parameters
Message-ID: <1719@csuna.csun.edu>
Date: 28 Feb 89 03:41:09 GMT
References: <495@chief.UUCP>
Reply-To: abcscnuk@csuna.csun.edu (Naoto Kimura (ACM))
Organization: CSU Northridge
Lines: 60

In article <495@chief.UUCP> start@chief.UUCP (CompuInvest BBS system ) writes:
>
>How does one set up a program to read in parameters from the command line?
>
>Ex. :
>
>Shell> pascal.prg -param1 -param2
>                   ^^^^^^  ^^^^^^
>                   ||||||  ||||||
>How does one accomplish this in standard (ISO) Pascal, if it is even
>possible?  Or, if turbo Pascal will accomlish this, how?
>
>I am using a Pascal compiler for my Amiga (Metacomco's MCC Pascal V2).
>
>Any help, of course would be appreciated!
>
>
>Thanks,
>
>Robert Cooper

Hmmmm... I seem to remember such a similar query just a month ago...

As far as I know, there is no standard way of doing so.   There is
still some hope, because many implementations of pascal will have
ways to access the command line.

Here are some implementations that I know of that allow access to the
command line parameters:

(VM/CMS)
PASCAL/VS	If I recall, R0 is used to point to the unparsed command
		line string.   You had to write some assembly code to
		be able to gain access to it.   There was also a
		way to gain access to the parsed arguments (though they
		were limited to 8 characters).

(MS/PC-DOS)
Turbo Pascal	Use the ParamCount function to find out how many
		argument strings there were, and the ParamStr(n)
		function to get the n'th argument string.  Version 5.0
		allows you to use ParamStr(0) to get the fully qualified
		filename of the executable.  You could probably also
		look somewhere in the PSP.

(NOS)
CDC Pascal	There is an include file to access parts of the command line.
		You had to use either a function or procedure to obtain the
		value of a option.

(Unix)
Berkeley	This compiler allows access to the argument count and
		argument strings via the 'argc' function and the
		'argv' function.

                //-n-\\			 Naoto Kimura
        _____---=======---_____		 (abcscnuk@csuna.csun.edu)
    ====____\   /.. ..\   /____====
  //         ---\__O__/---         \\	Enterprise... Surrender or we'll
  \_\                             /_/	send back your *&^$% tribbles !!