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Re: [PATCH] gnu: Allow nfs file systems to be automatically mounted.


From: Ludovic Courtès
Subject: Re: [PATCH] gnu: Allow nfs file systems to be automatically mounted.
Date: Mon, 28 Nov 2016 22:05:15 +0100
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/25.1 (gnu/linux)

John Darrington <address@hidden> skribis:

> On Mon, Nov 28, 2016 at 02:59:09PM +0100, Ludovic Court??s wrote:
>      >      ???match???, 
>      >
>      > Have another look: +    (let* ((host (match (string-split source #\:) 
> ((h _) h)))
>      
>      Right, but there are other occurrences of ???car??? for 
> ???getaddrinfo???.  :-)
>
> But that occurance applies to a real list, rather than a list used as record.
> In other words, I really do just want to get the first item of that list.
> As I understand it, match is supposed to be used for heterogenous lists where
> each member has its own semantics.  That is not the case here.

‘match’ can be used to match anything, and I highly recommend using it
for lists (info "(guile) Pairs"): it generates clearer and foolproof
code.

In this case ‘getaddrinfo’ might well return an empty list.

Ludo’.



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