From: Stefan Monnier <monnier@iro.umontreal.ca>
To: emacs-devel@gnu.org
Subject: Re: Lexical let and setq
Date: Sun, 15 Sep 2013 01:11:38 -0400 [thread overview]
Message-ID: <jwvbo3uk6w6.fsf-monnier+emacs@gnu.org> (raw)
In-Reply-To: <m3fvt71wrn.fsf@stories.gnus.org> (Lars Magne Ingebrigtsen's message of "Sat, 14 Sep 2013 13:13:32 +0200")
> I think the most common reason for stashing a lot of variables in a let
> is to avoid infinite indentation.
> (let ((a (foo)))
> (something)
> (let ((b (something-else)))
> (more a b)
> (let ((c (yet-more)))
> (zot a b c))))
> vs
> (let ((a (foo))
> b c)
> (something)
> (setq b (something-else))
> (more a b)
> (setq c (yet-more))
> (zot a b c))
> I kinda think the latter form is sometimes more readable.
In SML (where `setq' is not an option), the natural way to write it is
equivalent to:
(let* ((a (foo))
(_ (something))
(b (something-else))
(_ (more a b))
(c (yet-more)))
(zot a b c))
-- Stefan
next prev parent reply other threads:[~2013-09-15 5:11 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-09-06 20:59 bug#15294: 24.3.50; js2-mode parser is several times slower in lexical-binding mode Dmitry Gutov
2013-09-06 23:44 ` Xue Fuqiao
2013-09-07 3:15 ` Stefan Monnier
2013-09-08 22:32 ` Stefan Monnier
2013-09-10 2:04 ` Stefan Monnier
2013-09-13 3:40 ` Stefan Monnier
2013-09-13 3:59 ` Drew Adams
2013-09-13 4:37 ` Stefan Monnier
2013-09-13 5:45 ` Drew Adams
2013-09-13 13:01 ` Stefan Monnier
2013-09-14 0:09 ` Lexical let and setq Michael Welsh Duggan
2013-09-14 3:46 ` Stefan Monnier
2013-09-14 11:13 ` Lars Magne Ingebrigtsen
2013-09-14 14:04 ` Pascal J. Bourguignon
2013-09-15 5:11 ` Stefan Monnier [this message]
2013-09-14 21:47 ` Richard Stallman
2013-09-15 5:09 ` Stefan Monnier
2013-09-15 16:54 ` Richard Stallman
2013-09-15 17:06 ` Stefan Monnier
2013-09-16 10:47 ` Richard Stallman
2013-09-14 4:20 ` bug#15294: 24.3.50; js2-mode parser is several times slower in lexical-binding mode Dmitry Gutov
2013-09-14 14:27 ` Stefan Monnier
2013-09-15 0:11 ` Dmitry Gutov
2013-09-15 5:04 ` Stefan Monnier
2013-09-15 16:54 ` Richard Stallman
2013-09-15 0:24 ` Dmitry Gutov
2013-09-15 5:06 ` Stefan Monnier
2013-09-18 23:48 ` Stefan Monnier
2013-09-22 4:56 ` Dmitry Gutov
2013-10-03 5:00 ` Stefan Monnier
2013-10-04 2:38 ` Dmitry Gutov
2013-10-04 13:52 ` Stefan Monnier
2013-10-05 3:27 ` Dmitry Gutov
2014-12-14 12:31 ` Dmitry Gutov
2014-12-14 14:08 ` Stefan Monnier
-- strict thread matches above, loose matches on Subject: below --
2013-09-16 15:59 Lexical let and setq Barry OReilly
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