From: Emanuel Berg <embe8573@student.uu.se>
To: help-gnu-emacs@gnu.org
Subject: Re: `append' vs. `nconc'
Date: Fri, 01 Jan 2016 14:31:36 +0100 [thread overview]
Message-ID: <87bn95tohz.fsf@debian.uxu> (raw)
In-Reply-To: 87bn95ddf2.fsf@kuiper.lan.informatimago.com
"Pascal J. Bourguignon" <pjb@informatimago.com>
writes:
> list returns a fresh list. ` doesn't. ` may return
> a structure that shares literal substructures
> with others.
I have lots of ' and ` and instead of examining all
those cases I think it is easier to look for the
mutators, and see if ' or ` are used in
their vicinity.
I found this page:
http://www.emacswiki.org/emacs/DestructiveOperations
> It's simplier to forget about set and setq, and
> always use setf.
Oh, no! I have 207 `setq' in my initialization!
> That frees two neurons to think about other things.
I think we have spent too much time together lately:
now we are starting to *think* the same way!
--
underground experts united
http://user.it.uu.se/~embe8573
next prev parent reply other threads:[~2016-01-01 13:31 UTC|newest]
Thread overview: 38+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-12-28 16:35 Error: Setting the shell in sh-mode via a local variable does not work Johannes Kastl
2015-12-29 1:32 ` Emanuel Berg
2015-12-29 18:33 ` Johannes Kastl
2015-12-30 14:53 ` Emanuel Berg
2015-12-30 15:15 ` Robert Thorpe
2015-12-30 15:30 ` Emanuel Berg
2015-12-30 17:42 ` Johannes Kastl
2015-12-30 15:19 ` Teemu Likonen
2015-12-30 15:41 ` `append' vs. `nconc' (was: Re: Error: Setting the shell in sh-mode via a local variable does not work) Emanuel Berg
2015-12-30 16:37 ` `append' vs. `nconc' Teemu Likonen
2015-12-31 3:37 ` Emanuel Berg
[not found] ` <mailman.1400.1451533083.843.help-gnu-emacs@gnu.org>
2015-12-31 3:45 ` Pascal J. Bourguignon
2015-12-31 4:00 ` Emanuel Berg
2015-12-31 9:22 ` tomas
2015-12-31 18:48 ` Emanuel Berg
[not found] ` <mailman.1402.1451534421.843.help-gnu-emacs@gnu.org>
2015-12-31 5:36 ` Pascal J. Bourguignon
2015-12-31 3:50 ` Emanuel Berg
[not found] ` <mailman.1401.1451533833.843.help-gnu-emacs@gnu.org>
2015-12-31 5:37 ` Pascal J. Bourguignon
2015-12-31 7:13 ` Emanuel Berg
2015-12-31 9:30 ` tomas
2015-12-31 17:56 ` side effects, list sharing [was: `append' vs. `nconc'] Drew Adams
2015-12-31 19:00 ` Emanuel Berg
2015-12-31 19:15 ` Drew Adams
2016-01-01 13:20 ` Emanuel Berg
2015-12-31 18:51 ` `append' vs. `nconc' Emanuel Berg
[not found] ` <mailman.1440.1451588113.843.help-gnu-emacs@gnu.org>
2016-01-01 2:53 ` Barry Margolin
2016-01-01 13:26 ` Emanuel Berg
[not found] ` <mailman.1406.1451546036.843.help-gnu-emacs@gnu.org>
2015-12-31 8:54 ` Pascal J. Bourguignon
2015-12-31 7:31 ` Teemu Likonen
2015-12-31 18:35 ` Emanuel Berg
2015-12-31 20:04 ` Teemu Likonen
2016-01-01 13:23 ` Emanuel Berg
2016-01-01 14:02 ` Teemu Likonen
2016-01-01 18:31 ` Emanuel Berg
[not found] ` <mailman.1438.1451586967.843.help-gnu-emacs@gnu.org>
2016-01-01 6:25 ` Pascal J. Bourguignon
2016-01-01 13:31 ` Emanuel Berg [this message]
2016-01-01 15:04 ` Drew Adams
[not found] ` <mailman.1353.1451490125.843.help-gnu-emacs@gnu.org>
2015-12-30 16:18 ` Pascal J. Bourguignon
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