From: Harry Putnam <reader@newsguy.com>
To: help-gnu-emacs@gnu.org
Subject: conditionals in elisp
Date: Mon, 26 Oct 2009 19:08:13 -0500 [thread overview]
Message-ID: <87iqe1og0i.fsf@newsguy.com> (raw)
I'm hoping someone will be kind enough to demonstrate a couple of
brief conditionals in elisp... if and if else.
This may be a chintzy way to do it but I really do not want to pound
away at elisp intro and the elisp manual for hours. I usually
start seeing red at the 4-5 paragraph and usually have been able to
learn what I needed to know in things like perl and shell scripting
from just a few real live examples that do something at least close
to what I am trying then I can edit and tinker until I start to sort
of `get it'.
In this case, I thought I'd like to start 2 instances of emacs and in
each instance start the server on different names. 1 to do nothing but
run gnus from several remotes and the localhost.. and 2, for a
programming/editing instance also to connect from several remotes and
local.
That is, not try to do both in the emacs running gnus.
I know how to start daemons with different names... from cmdline or on
X start up or whatever, ... but here I want to start them from a running
instances of emacs.
Anyway cutting to the chase... tried writing an *.el file to load
when I'm ready, that would be something like:
cat .srvr.el
(load-library "server")
(setq server-name "gnus")
(server-mode)
Then from each emacs instance do: Eval: (load-file "/home/reader/.srvr.el")
I learned that things need to happen in that order (from a running
emacs) from devs on the devel list.
However since `server-mode' is a toggle... I thought I probably should
test for whether it is already enabled, so I don't end up turning it off.
Maybe test to see if `server.el' is already loaded too... if that
makes sense to do.
That's when I bumped into my ignorance, realizing I had no idea how to
write simple conditionals that would do this: (over verbosified for
clarity)
(The variable in the if clause is imaginary)
(load-library "server")
(setq server-name "name")
if (! server-mode-enabled){
(server-mode)
}
Probably at risk of showing the horrible bleak depths of my
ignorance... but I hope you get the idea... and hope further that it
even makes any sense at all...
Even if doing it the way I mention above makes no sense.. I would like
to know the better way of course, but would still like to see a couple
of simple elisp conditionals that do something simple.
next reply other threads:[~2009-10-27 0:08 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-10-27 0:08 Harry Putnam [this message]
2009-10-27 0:25 ` conditionals in elisp Richard Riley
2009-10-27 1:03 ` Drew Adams
2009-10-27 5:33 ` Harry Putnam
2009-10-27 7:37 ` Drew Adams
2009-10-28 9:10 ` Thien-Thi Nguyen
2009-10-28 14:03 ` Drew Adams
[not found] ` <mailman.9621.1256738653.2239.help-gnu-emacs@gnu.org>
2009-10-28 15:42 ` LanX
2009-10-28 20:42 ` Harry Putnam
2009-10-28 16:19 ` Harry Putnam
[not found] ` <mailman.9630.1256746811.2239.help-gnu-emacs@gnu.org>
2009-11-02 19:31 ` Joseph Brenner
2009-10-27 5:50 ` tomas
[not found] <mailman.9533.1256602126.2239.help-gnu-emacs@gnu.org>
2009-10-27 0:19 ` Pascal J. Bourguignon
2009-10-27 2:52 ` LanX
2009-10-27 10:36 ` Pascal J. Bourguignon
2009-10-27 12:09 ` Richard Riley
2009-10-27 17:03 ` Sean Sieger
2009-10-28 12:07 ` Richard Riley
[not found] ` <mailman.9555.1256645401.2239.help-gnu-emacs@gnu.org>
2009-10-27 12:31 ` Pascal J. Bourguignon
2009-10-27 13:02 ` Richard Riley
[not found] ` <mailman.9557.1256648714.2239.help-gnu-emacs@gnu.org>
2009-10-27 16:04 ` Pascal J. Bourguignon
2009-10-27 17:26 ` Harry Putnam
[not found] ` <mailman.9572.1256664440.2239.help-gnu-emacs@gnu.org>
2009-10-27 18:37 ` Pascal J. Bourguignon
2009-10-27 19:40 ` Harry Putnam
[not found] ` <mailman.9577.1256672457.2239.help-gnu-emacs@gnu.org>
2009-10-27 21:14 ` Pascal J. Bourguignon
2009-10-28 14:05 ` David Kastrup
2009-10-28 15:55 ` Harry Putnam
2009-10-28 17:45 ` Pascal J. Bourguignon
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