From: Eric Abrahamsen <eric@ericabrahamsen.net>
To: Drew Adams <drew.adams@oracle.com>
Cc: Michael Heerdegen <michael_heerdegen@web.de>,
"Miguel V. S. Frasson" <mvsfrasson@gmail.com>,
34708@debbugs.gnu.org
Subject: bug#34708: alist-get has unclear documentation
Date: Mon, 04 Mar 2019 08:24:14 -0800 [thread overview]
Message-ID: <875zsyhakx.fsf@ericabrahamsen.net> (raw)
In-Reply-To: <fe232d0a-1423-4eea-8fd0-1b7fb89ce909@default> (Drew Adams's message of "Sun, 3 Mar 2019 07:51:51 -0800 (PST)")
On 03/03/19 07:51 AM, Drew Adams wrote:
[...]
> It's important to not give the impression that
> there must be an _existing_ element with KEY.
> Showing an example can help dispel that mistake.
>
> (setq foo ())
> (setf (alist-get 'a foo) 1
> (alist-get 'b foo) 2)
>
> C-h v foo; ==> ((b. 2) (a. 1))
I think it would be nice to have an example that shows both a common
use-case (as an accumulator), and how to use REMOVE. I started off with
the accumulator part:
(let (word word-freq)
(while (setq word (pop word-list))
(cl-incf (alist-get word word-freq 0 #'equal) 1)))
But so far haven't come up with a non-contrived way to work REMOVE in
there...
next prev parent reply other threads:[~2019-03-04 16:24 UTC|newest]
Thread overview: 42+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-03-02 4:50 bug#34708: alist-get has unclear documentation Miguel V. S. Frasson
2019-03-02 9:25 ` Michael Heerdegen
2019-03-02 15:40 ` Miguel V. S. Frasson
2019-03-02 18:10 ` Michael Heerdegen
2019-03-02 19:06 ` Eric Abrahamsen
2019-03-03 0:15 ` Phil Sainty
2019-03-03 12:50 ` Michael Heerdegen
2019-03-19 1:35 ` Michael Heerdegen
2019-03-02 19:51 ` Miguel V. S. Frasson
2019-03-02 20:32 ` Eric Abrahamsen
2019-03-03 11:32 ` Miguel V. S. Frasson
2019-03-03 12:21 ` Michael Heerdegen
2019-03-03 15:51 ` Drew Adams
2019-03-03 16:49 ` Eric Abrahamsen
2019-03-04 16:24 ` Eric Abrahamsen [this message]
2019-03-04 16:38 ` Michael Heerdegen
2019-03-04 17:16 ` Eric Abrahamsen
2019-03-04 18:22 ` Michael Heerdegen
2019-03-04 22:49 ` Eric Abrahamsen
2019-03-05 12:35 ` Michael Heerdegen
2019-03-05 22:50 ` Eric Abrahamsen
2019-03-06 0:16 ` Drew Adams
2019-03-11 13:39 ` Michael Heerdegen
2019-03-11 14:52 ` Drew Adams
2019-03-11 16:19 ` Michael Heerdegen
2019-03-11 17:48 ` Drew Adams
2019-03-12 13:04 ` Michael Heerdegen
2019-03-12 14:48 ` Drew Adams
2019-03-12 16:08 ` Michael Heerdegen
2019-03-12 16:48 ` Drew Adams
2019-03-12 17:45 ` Michael Heerdegen
2019-03-12 13:12 ` Michael Heerdegen
2019-03-12 14:53 ` Drew Adams
2019-03-12 15:38 ` Michael Heerdegen
2019-03-12 16:18 ` Drew Adams
2019-03-12 17:55 ` Michael Heerdegen
2019-03-15 15:54 ` Michael Heerdegen
2019-03-15 18:48 ` Eric Abrahamsen
2019-03-27 22:31 ` Michael Heerdegen
2019-04-19 1:33 ` Michael Heerdegen
2019-04-19 2:24 ` bug#34708: Thanks Miguel V. S. Frasson
2019-04-19 4:18 ` Michael Heerdegen
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=875zsyhakx.fsf@ericabrahamsen.net \
--to=eric@ericabrahamsen.net \
--cc=34708@debbugs.gnu.org \
--cc=drew.adams@oracle.com \
--cc=michael_heerdegen@web.de \
--cc=mvsfrasson@gmail.com \
/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 public inbox
https://git.savannah.gnu.org/cgit/emacs.git
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).