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From: Denis Bueno <dbueno@gmail.com>
Cc: help-gnu-emacs@gnu.org
Subject: Re: Structured data in Emacs Lisp
Date: Tue, 26 Apr 2005 11:28:48 -0400	[thread overview]
Message-ID: <6dbd4d0005042608284f545f6d@mail.gmail.com> (raw)
In-Reply-To: <op.spuh8su4p52o26@home-ca12fabbc0>

On 4/26/05, PT <mailshield.gg@mailnull.com> wrote:
<snip explanation>

> Or maybe an association list? '((value1 . 3) (value2 . 4) (value3 . 5))
> It's certainly more resistant to code changes, but feels a bit
> heavyweight. (Maybe its just me.)

You could use a plist:

  (:key1 1 :key2 2)

Then to get a particular value:

(getf '(:key1 1 :key2 2) :key1)
=> 1

According to C-h f getf RET:

  getf is a compiled Lisp function in `cl-extra'.
  (getf plist tag &optional def)

So you might need to do (require 'cl) before using it....

-Denis
PGP: http://pgp.mit.edu:11371/pks/lookup?search=0xA1B51B4B&op=index

  reply	other threads:[~2005-04-26 15:28 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2005-04-26 15:20 Structured data in Emacs Lisp PT
2005-04-26 15:28 ` Denis Bueno [this message]
     [not found] ` <mailman.3069.1114529432.2895.help-gnu-emacs@gnu.org>
2005-04-26 15:57   ` PT
2005-04-26 16:59     ` Jim Ottaway
2005-04-27  5:35       ` Ian Zimmerman
2005-04-26 16:03 ` Phillip Lord
2005-04-26 17:21   ` PT
2005-04-27 11:13     ` Phillip Lord
2005-04-27 15:27 ` Klaus Berndl
2005-04-27 18:38   ` PT
2005-05-09 21:39 ` Christopher C. Stacy
2005-05-10 10:05   ` Phillip Lord

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