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From: Joe Bloggs <who@cares.invalid>
To: help-gnu-emacs@gnu.org
Subject: Re: parametrized function definition
Date: Mon, 14 Jul 2008 21:32:59 +0100	[thread overview]
Message-ID: <87abgk1a10.fsf@DEBLAP1.BeNet> (raw)
In-Reply-To: a1ae72a4-5e3e-4e83-8c55-8eacacdd48ef@k37g2000hsf.googlegroups.com

weber <hugows@gmail.com> writes:

> On Jul 8, 2:07 pm, Joe Bloggs <w...@cares.invalid> wrote:
>> Hi, I am trying to write a function that allows me to quickly bind a key combination
>> to insert arbitrary text:
>>
>> (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)))
>>     )
>>   )
>>
>> However, this doesn't work since textinsert is not evaluated until the function is called with the keybinding. How can I get this to work properly? I am new to elisp so I imagine it's very simple.
>>
>> Thanks.
>
> Hi Joe.
>
> You have to use some special syntax to that textinsert is evaluated
> (so your lambda will insert the contents of textinsert, and not the
> symbol textinsert)
> I also rewrote your let, because it looks nicer this way, but you can
> keep the setqs you if want :)
>
> (defun set-local-key-insert ()
>   "set a local key to insert some text"
>   (interactive)
>   (let ((keystring (read-key-sequence "Key combination to bind: "))
> 	(textinsert (read-string "Text to insert: ")))
>     (local-set-key (read-kbd-macro keystring) `(lambda ()
> (interactive) (insert ,textinsert)))))
>
> The significant changes are the backquote before the lambda, and the
> comma before textinsert.
> Take a look at the help for this function with C-h f `
>
> HTH
> weber

Thanks alot weber, this is the best solution I received.


  reply	other threads:[~2008-07-14 20:32 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)
     [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 [this message]
     [not found] ` <mailman.14451.1215618411.18990.help-gnu-emacs@gnu.org>
2008-07-14 20:23   ` Joe Bloggs

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