John Darrington <j...@darrington.wattle.id.au> 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’.
