From: Kevin Rodgers <kevin.d.rodgers@gmail.com>
To: help-gnu-emacs@gnu.org
Subject: Re: elisp question
Date: Thu, 01 May 2008 07:08:32 -0600 [thread overview]
Message-ID: <fvcfbv$och$1@ger.gmane.org> (raw)
In-Reply-To: <a57fcd09-c8c1-4606-ba6b-acbff90c75ab@k13g2000hse.googlegroups.com>
harven wrote:
> I am trying to device a short command to
> interactively resize the current window:
>
> (defun resize-window (key)
> "resize interactively the window"
> (interactive "c- widen, _ shrink")
> (cond
> ((eq key (string-to-char "-"))
> (enlarge-window 1)
> (call-interactively 'resize-window))
> ((eq key (string-to-char "_"))
> (enlarge-window -1)
> (call-interactively 'resize-window))
> (t (insert key))))
>
> I type -/_ a number of times, the window enlarges/shrinks, and if I
> type another character, the window resizing stops and the character is
> inserted.
>
> However, I would like the following effect.
> Any entry other than -/_ should end the resizing and be executed. How
> can I achieve such effect ?
See the unread-command-events variable. Here's an iterative version to
compare to your recursive implementation:
(defvar enlarge-window-char ?_) ; or ?+
(defvar shrink-window-char ?-)
(defun resize-window (&optional arg)
"Interactively resize the selected window.
Repeatedly prompt whether to enlarge or shrink the window until the
response is neither `enlarge-window-char' or `shrink-window-char'.
When called with a prefix arg, resize the window by ARG lines."
(interactive "p")
(let ((prompt (format "Enlarge/Shrink window (%c/%c)? "
enlarge-window-char shrink-window-char))
response)
(while (progn
(setq response (read-event prompt))
(cond ((equal response enlarge-window-char)
(enlarge-window arg)
t)
((equal response shrink-window-char)
(enlarge-window (- arg))
t)
(t nil)))
;; no loop body needed
)
(push response unread-command-events)))
--
Kevin Rodgers
Denver, Colorado, USA
next prev parent reply other threads:[~2008-05-01 13:08 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-04-30 21:23 elisp question harven
2008-05-01 13:08 ` Kevin Rodgers [this message]
[not found] ` <mailman.11020.1209647315.18990.help-gnu-emacs@gnu.org>
2008-05-01 13:54 ` harven
2008-05-03 15:38 ` Bastien
-- strict thread matches above, loose matches on Subject: below --
2009-09-27 14:32 Elisp Question magicus
2009-09-27 15:26 ` Giorgos Keramidas
2009-09-27 17:10 ` magicus
[not found] <mailman.941.1223918781.25473.help-gnu-emacs@gnu.org>
2008-10-13 18:11 ` elisp question Niels Giesen
2008-10-13 19:09 ` Seweryn Kokot
[not found] ` <mailman.948.1223924333.25473.help-gnu-emacs@gnu.org>
2008-10-13 19:40 ` Pascal J. Bourguignon
2008-10-13 20:47 ` Drew Adams
2008-10-13 21:11 ` Seweryn Kokot
2008-10-13 17:36 Seweryn Kokot
2005-11-30 23:13 Tim McNamara
2005-11-30 23:22 ` Lennart Borgman
2005-12-01 5:07 ` Stefan Monnier
2005-12-01 19:29 ` Tim McNamara
2005-12-01 21:00 ` Stefan Monnier
2005-12-02 1:02 ` Tim McNamara
2005-12-02 17:51 ` Kevin Rodgers
2005-12-01 6:24 ` N. Raghavendra
2005-12-01 19:32 ` Tim McNamara
2005-12-01 21:37 ` N. Raghavendra
2005-12-01 23:40 ` Thien-Thi Nguyen
2005-12-02 7:44 ` N. Raghavendra
2005-12-02 14:43 ` Thien-Thi Nguyen
2005-12-02 1:05 ` Tim McNamara
[not found] ` <mailman.17404.1133392955.20277.help-gnu-emacs@gnu.org>
2005-12-01 19:25 ` Tim McNamara
2003-08-20 7:37 Mike Ballard
2003-08-20 8:07 ` Joakim Hove
2003-08-22 5:52 ` Mike Ballard
2003-08-22 6:38 ` Joakim Hove
2003-08-20 15:07 ` Peter Lee
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