Path: news.eternal-september.org!eternal-september.org!.POSTED!not-for-mail
From: "B. Pym" <Nobody447095@here-nor-there.org>
Newsgroups: comp.lang.lisp
Subject: Re: novice: mapcan use?
Date: Tue, 24 Jun 2025 13:50:51 -0000 (UTC)
Organization: A noiseless patient Spider
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Pascal Costanza wrote:

> >>Do you understand what nreconc is there for? Have you ever used it?
> >
> > Here's an example:
> >
> >   <http://groups.google.com/group/comp.lang.lisp/msg/2520fe9bc7749328>
> 
> Yes, I am aware of that example, but I find it too obfuscated. I prefer
> this:
> 
> (loop for (key value) on plist by #'cddr
>        unless (member key keys-to-be-removed)
>        nconc (list key value))


Gauche Scheme

(delete-keywords '(foo bar) '(a 2 foo 77 b 3 bar 88 c 4))
  ===>
(a 2 b 3 c 4)