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From: "Lennart Borgman (gmail)" <lennart.borgman@gmail.com>
To: Thien-Thi Nguyen <ttn@gnuvola.org>
Cc: help-gnu-emacs@gnu.org
Subject: Re: parametrized function definition
Date: Wed, 09 Jul 2008 10:19:42 +0200	[thread overview]
Message-ID: <4874749E.3070406@gmail.com> (raw)
In-Reply-To: <87zlorh3wj.fsf@ambire.localdomain>

Thien-Thi Nguyen wrote:
> () "Lennart Borgman (gmail)" <lennart.borgman@gmail.com>
> () Wed, 09 Jul 2008 09:06:30 +0200
> 
>    > (defun set-local-key-insert ()
>    >   "set a local key to insert some text"
>    >   (interactive)
>    >   (let (keystring textinsert)   
>    >     (setq keystring (read-key-sequence "Key combination to bind: "))
>    >        (setq textinsert (read-string "Text to insert: "))
>    >        (local-set-key (read-kbd-macro keystring) 
>    >                       (lambda () (interactive) 
>    >                         (insert textinsert)))))
> 
>    You can remove textinsert from let and make it a defvar instead.
> 
>      (defvar textinsert nil)
> 
> Yes, but that would defeat the presumed intention of using `textinsert'
> as a local variable.  Practically, this means `set-local-key-insert'
> invocations clobber previous invocations' state (last invocation wins).
> 
> Probably OP wants `lexical-let'.
> 
> thi

Then maybe this page is helpful:

   http://www.emacswiki.org/cgi-bin/wiki/FakeClosures




  reply	other threads:[~2008-07-09  8:19 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-07-08 17:07 parametrized function definition Joe Bloggs
2008-07-09  7:06 ` Lennart Borgman (gmail)
2008-07-09  8:12   ` Thien-Thi Nguyen
2008-07-09  8:19     ` Lennart Borgman (gmail) [this message]
     [not found]   ` <mailman.14435.1215591337.18990.help-gnu-emacs@gnu.org>
2008-07-09 14:44     ` Joe Bloggs
2008-07-09 10:40 ` Xah
2008-07-09 12:26 ` Joel J. Adamson
2008-07-09 12:46 ` weber
2008-07-14 20:32   ` Joe Bloggs
     [not found] ` <mailman.14451.1215618411.18990.help-gnu-emacs@gnu.org>
2008-07-14 20:23   ` Joe Bloggs

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