From: Peter S Galbraith <p.galbraith@globetrotter.net>
Cc: help-gnu-emacs@gnu.org
Subject: Re: multi-line conditionals in elisp
Date: Sun, 22 Dec 2002 14:21:15 -0500 [thread overview]
Message-ID: <20021222192115.A5245429E2@mixed.dyndns.org> (raw)
In-Reply-To: Message from Michael Powe <michael+gnus@trollope.org> of "Sun, 22 Dec 2002 19:00:43 GMT." <ulm2hc1zw.fsf@trollope.org>
Michael Powe <michael+gnus@trollope.org> wrote:
> this is trivial in other languages, but not, it seems, in elisp. (i
> think it's just a case of, i don't really understand the language.)
The latter.
> (if (locate-library "python-mode")
> (cond((autoload 'python-mode "python-mode" "Python editing mode" t)
> (setq auto-mode-alist
> (cons '("\\.py$" . python-mode) auto-mode-alist))))
> (message "python library not found"))
(if (locate-library "python-mode")
(progn
(autoload 'python-mode "python-mode" "Python editing mode" t)
(setq auto-mode-alist (cons '("\\.py$" . python-mode) auto-mode-alist)))
(message "python library not found"))
or
(if (not (locate-library "python-mode"))
(message "python library not found")
(autoload 'python-mode "python-mode" "Python editing mode" t)
(setq auto-mode-alist (cons '("\\.py$" . python-mode) auto-mode-alist)))
or forget the message:
(when (locate-library "python-mode")
(autoload 'python-mode "python-mode" "Python editing mode" t)
(setq auto-mode-alist (cons '("\\.py$" . python-mode) auto-mode-alist)))
Peter
next prev parent reply other threads:[~2002-12-22 19:21 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-12-22 19:00 multi-line conditionals in elisp Michael Powe
2002-12-22 19:12 ` David Kastrup
2002-12-22 22:48 ` Michael Powe
2002-12-22 23:05 ` David Kastrup
2002-12-24 3:17 ` Jesper Harder
[not found] ` <michael+gnus@trollope.org>
2002-12-22 19:21 ` Peter S Galbraith [this message]
[not found] ` <mailman.524.1040584903.19936.help-gnu-emacs@gnu.org>
2002-12-22 22:40 ` Michael Powe
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