From: Michael Powe <michael+gnus@trollope.org>
Subject: Re: multi-line conditionals in elisp
Date: Sun, 22 Dec 2002 22:48:26 GMT [thread overview]
Message-ID: <uhed5sm9i.fsf@trollope.org> (raw)
In-Reply-To: x5smwphnpx.fsf@lola.goethe.zz
>>>>> "David" == David Kastrup <David.Kastrup@t-online.de> writes:
David> Michael Powe <michael+gnus@trollope.org> writes:
>> sorry for the dumb question, but i'm sure of the best way to do
>> this. i have emacs installed on several machines and would like
>> to use a single .emacs. it's annoying to have to maintain
>> different ones, and i forget sometimes that one library is
>> installed on one machine but not on another.
>>
>> my solution was to put a conditional in the .emacs to test for
>> the existence of a library before following its loading
>> instructions. what i'm having a problem with, is conditionals
>> of this format:
>>
>> if (true) do item one do item two do item three ... else do
>> item four
>>
>> 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.) here's what i did:
>>
>> (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"))
David> That is junk. I recommend you look up progn.
>> nb. trivial note: on my main workstation, i maintain my
>> dot-files in rcs. i noted yesterday that my oldest entry in
>> the .emacs is from january 30, 1998. so, in a little over a
>> month, it will be 5 years old. that's a lot of bits & bytes
>> through the pipe.
David> 5 years and you don't know progn. That certainly _is_
David> impressive.
well, i'm ignorant and you are a jerk. which one of us is worse off?
hint: i don't think it's me. i can learn what i don't know, but you
can never change your character. thank you very little for taking
time out of your busy day to ridicule me.
mp
--
Michael Powe Waterbury, CT
-------------------------------------------------------------
"The most likely way for the world to be destroyed, most experts
agree, is by accident. That's where we come in. We're computer
professionals. We cause accidents." -- Nathaniel Borenstein
next prev parent reply other threads:[~2002-12-22 22:48 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 [this message]
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
[not found] ` <mailman.524.1040584903.19936.help-gnu-emacs@gnu.org>
2002-12-22 22:40 ` Michael Powe
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=uhed5sm9i.fsf@trollope.org \
--to=michael+gnus@trollope.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
Code repositories for project(s) associated with this external index
https://git.savannah.gnu.org/cgit/emacs.git
https://git.savannah.gnu.org/cgit/emacs/org-mode.git
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.