From: Joakim Hove <hove@bccs.no>
Subject: Re: Learners doubt in LISP
Date: Thu, 08 Jan 2004 10:22:08 +0100 [thread overview]
Message-ID: <4yd69un6bj.fsf@skjellgran.ii.uib.no> (raw)
In-Reply-To: m33caqb5k4.fsf@anandpc.cc.iitm.ernet.in
Rajsekar Manokaran <rajsekar_manokaran@yahoo.co.uk> writes:
> (completing-read "Input: " '(("hai" 10) ("bye" 20)) nil t nil)
[...]
> Now this thing seems to return "bye" or "hai"
> How do I access the 10 or 20 that comes together with it?
(let* ((alist '(("hai" 10) ("bye" 20)))
(key (completing-read "Input: alist nil t nil))
(value (nth 1 (assoc-string key alist))))
;; Key and value defined in this scope.
)
The function (assoc-string) returns the whole pair, and (nth 1 )
selects the last one. (Maybe a function to perform this combination
already exists?)
HTH - Joakim
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next prev parent reply other threads:[~2004-01-08 9:22 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-01-08 19:31 Learners doubt in LISP Rajsekar Manokaran
2004-01-08 9:22 ` Joakim Hove [this message]
2004-01-08 10:27 ` Ganesh Swami
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