From: Matt Price <matt.price@utoronto.ca>
To: Matthew Flaschen <matthew.flaschen@gatech.edu>
Cc: emacs <help-gnu-emacs@gnu.org>
Subject: Re: adding a string to every element in a list
Date: Tue, 18 Nov 2008 13:03:12 -0500 [thread overview]
Message-ID: <1227031392.31451.2499.camel@localhost> (raw)
In-Reply-To: <492109F3.6040002@gatech.edu>
thanks matt,
i don't know why this didn't occur to me -- i was hung up on modifying
the original list, i guess, not thinking i could just create a new one.
anyway thanks to you and to drew, who also replied.
matt
On Mon, 2008-11-17 at 01:06 -0500, Matthew Flaschen wrote:
> Matt Price wrote:
> > i have no doubt this is trivial in lisp, but my documentation searches always take
> > me back to cons, car, and cdr, which don't seem like the easiest tools
> > for this task, though maybe it's just that i don't really understan
> > recursion...
>
> Just use mapcar, and it will handle the recursion:
>
> (setq list (list "dog" "cat" "fish"));
> (mapcar (lambda (arg) (concat arg "food")) list)
>
> Matt Flaschen
--
Matt Price
matt.price@utoronto.ca
next prev parent reply other threads:[~2008-11-18 18:03 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-11-17 5:51 adding a string to every element in a list Matt Price
2008-11-17 6:06 ` Matthew Flaschen
2008-11-18 18:03 ` Matt Price [this message]
2008-11-18 18:16 ` Drew Adams
2008-11-17 6:54 ` Drew Adams
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