From: swedebugia <swedebugia@riseup.net>
To: Amirouche Boubekki <amirouche.boubekki@gmail.com>
Cc: guix-devel <guix-devel@gnu.org>
Subject: Re: CLI reorganization revisited
Date: Fri, 9 Nov 2018 00:13:19 +0100 [thread overview]
Message-ID: <a97218da-ffd7-df74-d1d3-e9100ceb677c@riseup.net> (raw)
In-Reply-To: <CAL7_Mo-Lh+Bx4DVXhqGqPwY7vUmTe6kirfEZ=hw6ani5dd+kMg@mail.gmail.com>
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On 2018-11-08 23:46, Amirouche Boubekki wrote:
>
> I do not understand how args work. Is this documented somewhere?
>
> Also I do not understand this form:
>
> (define (guix-describe . args)
> ^
> What is the role of the dot?
>
>
>
> The dot serve as a separator between 'required' argument and 'rest'
> arguments which is always a list that might be empty.
> In the above case everything passed to the procedure guix-describe is
> considered part of args.
Thank you!
I just saw that GNU Scheme implemented that as keyword: #optional!
This is more clear for the reader/beginner actually. ;-)
--
Cheers Swedebugia
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prev parent reply other threads:[~2018-11-09 6:40 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-11-05 21:24 CLI reorganization revisited (Was: Re: Another cli interface for guix/sd) swedebugia
2018-11-06 14:24 ` CLI reorganization revisited Ludovic Courtès
2018-11-08 22:18 ` swedebugia
2018-11-08 22:46 ` Amirouche Boubekki
2018-11-08 23:13 ` swedebugia [this message]
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