From: Thien-Thi Nguyen <ttn@gnu.org>
To: Barry Margolin <barmar@alum.mit.edu>
Cc: help-gnu-emacs@gnu.org
Subject: Re: (loop with (VAR1 VAR2) ...)
Date: Mon, 17 Mar 2014 07:29:58 +0100 [thread overview]
Message-ID: <874n2xs5g9.fsf@zigzag.favinet> (raw)
In-Reply-To: <barmar-10637E.21280116032014@news.eternal-september.org> (Barry Margolin's message of "Sun, 16 Mar 2014 21:28:01 -0400")
[-- Attachment #1: Type: text/plain, Size: 960 bytes --]
() Barry Margolin <barmar@alum.mit.edu>
() Sun, 16 Mar 2014 21:28:01 -0400
Does it mention "destructuring"? Any place where a single variable is
allowed, you can have a list of variables, and it will assign them from
the list of values.
It's mentioned specifically for ‘for’ VARs in (info "(cl) For Clauses")
so i suppose this is a doc bug (missing xref). Or maybe the description
should be moved to "Loop Basics". Anyway:
(loop with (x y) = '(10 20)
for n upto 5
collect (cons (* n x)
(* n y)))
((0 . 0)
(10 . 20)
(20 . 40)
(30 . 60)
(40 . 80)
(50 . 100))
it works w/ ‘with’ as well as for ‘for’; i'm happy. Thanks for the tip.
--
Thien-Thi Nguyen
GPG key: 4C807502
(if you're human and you know it)
read my lisp: (responsep (questions 'technical)
(not (via 'mailing-list)))
=> nil
[-- Attachment #2: Type: application/pgp-signature, Size: 197 bytes --]
next prev parent reply other threads:[~2014-03-17 6:29 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <mailman.17317.1394989649.10748.help-gnu-emacs@gnu.org>
2014-03-17 1:28 ` (loop with (VAR1 VAR2) ...) Barry Margolin
2014-03-17 6:29 ` Thien-Thi Nguyen [this message]
2014-03-16 17:11 Thien-Thi Nguyen
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
List information: https://www.gnu.org/software/emacs/
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=874n2xs5g9.fsf@zigzag.favinet \
--to=ttn@gnu.org \
--cc=barmar@alum.mit.edu \
--cc=help-gnu-emacs@gnu.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.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).