From mboxrd@z Thu Jan  1 00:00:00 1970
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From: Pietro Gagliardi <pietro10@mac.com>
To: Fans of the OS Plan 9 from Bell Labs <9fans@9fans.net>
In-reply-to: <20080612034450.30B801E8C53@holo.morphisms.net>
Date: Wed, 11 Jun 2008 23:57:37 -0400
References: <20080612034450.30B801E8C53@holo.morphisms.net>
Subject: Re: [9fans] First/second edition image manipulation tools
Topicbox-Message-UUID: bba86ea6-ead3-11e9-9d60-3106f5b1d025

On Jun 11, 2008, at 11:46 PM, Russ Cox wrote:

>> 	The first edition specified the arguments to -o as two values -
>> this cannot be done
>> 	due to idiosyncrasies with args(2).
>
> case 'o':
> 	arg1 = EARGF(usage());
> 	arg2 = EARGF(usage());
> 	break;
>
> russ
>
>

According to arg(2), that's not a good idea.
	"ARGF must be called just once for each option that takes an argument."
See if your code works.