unofficial mirror of emacs-devel@gnu.org 
 help / color / mirror / code / Atom feed
From: Jean Louis <bugs@gnu.support>
To: Philip Kaludercic <philipk@posteo.net>
Cc: emacs-devel@gnu.org, Dmitry Gutov <dgutov@yandex.ru>
Subject: Re: Stepping Back: A Wealth Of Completion systems Re: [ELPA] New package: vertico
Date: Mon, 12 Apr 2021 13:56:27 +0300	[thread overview]
Message-ID: <YHQnW0F5hBs/llAv@protected.localdomain> (raw)
In-Reply-To: <87pmyz4xom.fsf@posteo.net>

* Philip Kaludercic <philipk@posteo.net> [2021-04-12 13:15]:
> Jean Louis <bugs@gnu.support> writes:
> 
> > * Philip Kaludercic <philipk@posteo.net> [2021-04-11 18:53]:
> >> Jean Louis <bugs@gnu.support> writes:
> >> 
> >> > One way I use for complex data structures is to have some kind of ID
> >> > and visual description, then by using the ID I fetch the data
> >> > structure later.
> >> 
> >> I'm not sure I completely understood your example. What do hash tables
> >> offer over lists of objects that can have a programmed
> >> representation?
> >
> > Completing read supports hash tables, once representation candidate
> > has been selected one can then use the key to get value of some quite
> > different or very complex data structure.
> >
> > (setq h (make-hash-table :test 'equal))
> > (puthash "United States" [("ABC" 30 t)] h)
> > (puthash "Australia" 2 h)
> > (puthash "United Kingdom" 3 h)
> >
> > (message "%s" (gethash (completing-read "Choice: " h) h)) ⇒ "[(ABC 30 t)]"
> 
> But don't you think that it is weird that completing-read returns the
> representation and not the object itself. That is exactly what I want to
> avoid by having the representation computed using a method.

That could be implemented as some new options.

But users like me may not always want to use hash, I may want to use
the key, though the key has some optional data, I may wish to use key
only. At some other times I may want to use value in the hash or part
of that value.

How I understand, you want to use values or some variable data to
compute representation, fine and I hope it will not break standard
completion.

Side note, representation by hash key does not really support
duplicates, so when constructing a key, I am adding the unique ID to
the key to avoid duplicates. Maybe usages of duplicates is not
clear. Completion candidates could be in some order like

"Cash"
"Expenses" - could carry value 1
"Transfers"
"Expenses" - could carry value 2

and by looking into the order user could recognize that second one is
the one that is wanted. But as there is no option to have duplicates
in a hash, I am modifying keys to carry unique ID.

-- 
Jean

Take action in Free Software Foundation campaigns:
https://www.fsf.org/campaigns

Sign an open letter in support of Richard M. Stallman
https://rms-support-letter.github.io/




  reply	other threads:[~2021-04-12 10:56 UTC|newest]

Thread overview: 178+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-04-05 10:22 [ELPA] New package: vertico Daniel Mendler
2021-04-05 14:27 ` Manuel Uberti
2021-04-05 18:30   ` Stepping Back: A Wealth Of Completion systems " T.V Raman
2021-04-05 20:49     ` Philip Kaludercic
2021-04-05 20:55       ` T.V Raman
2021-04-06  6:45       ` Arthur Miller
2021-04-06 15:15       ` Eric Abrahamsen
2021-04-06 15:56         ` Stefan Monnier
2021-04-07 12:09       ` Gregory Heytings
2021-04-07 12:23         ` Joost Kremers
2021-04-07 12:56           ` Daniel Mendler
2021-04-07 18:55           ` Jean Louis
2021-04-07 13:05         ` Yuri Khan
2021-04-07 13:45           ` Eli Zaretskii
2021-04-07 14:15         ` Philip Kaludercic
     [not found]           ` <87eefm5fzl.fsf@posteo.net>
     [not found]             ` <3ec7e2e58a106c77370d@heytings.org>
2021-04-07 14:33               ` Philip Kaludercic
2021-04-07 15:17           ` Daniel Mendler
2021-04-07 16:14             ` Stefan Monnier
2021-04-07 16:32               ` Daniel Mendler
2021-04-07 16:20             ` Philip Kaludercic
2021-04-07 16:57               ` Daniel Mendler
2021-04-07 18:19                 ` [External] : " Drew Adams
2021-04-07 19:13                 ` Philip Kaludercic
2021-04-07 19:47                   ` Jean Louis
2021-04-07 20:03                   ` Daniel Mendler
2021-04-07 22:31                     ` Philip Kaludercic
2021-04-09  6:21                     ` Tassilo Horn
2021-04-09  8:53                       ` Daniel Mendler
2021-04-09 17:22                         ` [External] : " Drew Adams
2021-04-09 18:51                         ` Tassilo Horn
2021-04-07 23:07                   ` [External] : " Drew Adams
2021-04-07 19:24                 ` Jean Louis
2021-04-07 18:19               ` [External] : " Drew Adams
2021-04-07 18:13             ` Drew Adams
2021-04-07 15:24           ` Gregory Heytings
2021-04-07 16:10             ` Philip Kaludercic
2021-04-07 16:49               ` Gregory Heytings
2021-04-07 17:40                 ` Philip Kaludercic
2021-04-07 17:48                   ` Gregory Heytings
2021-04-07 19:22                     ` Philip Kaludercic
2021-04-07 19:03           ` Jean Louis
2021-04-07 14:31         ` T.V Raman
2021-04-07 16:02         ` Eric Abrahamsen
2021-04-07 18:18           ` [External] : " Drew Adams
2021-04-09  6:40           ` Thierry Volpiatto
2021-04-10  4:20             ` Eric Abrahamsen
2021-04-07 18:49         ` Jean Louis
2021-04-07 20:33           ` Juri Linkov
2021-04-09 11:12             ` Jean Louis
2021-04-07 13:01       ` Dmitry Gutov
2021-04-07 14:44         ` Stefan Monnier
2021-04-07 14:55           ` Philip Kaludercic
2021-04-07 21:56           ` Dmitry Gutov
2021-04-07 22:59             ` Philip Kaludercic
2021-04-08  0:48               ` Dmitry Gutov
2021-04-08 14:44                 ` Philip Kaludercic
2021-04-08 16:40                   ` T.V Raman
2021-04-08 17:53                     ` Philip Kaludercic
2021-04-08 17:57                       ` T.V Raman
2021-04-08 17:21                   ` [External] : " Drew Adams
2021-04-08 18:03                     ` Philip Kaludercic
2021-04-08 18:59                   ` Dmitry Gutov
2021-04-09  4:21                     ` Eric Abrahamsen
2021-04-09 23:18                       ` Dmitry Gutov
2021-04-10  4:31                         ` Eric Abrahamsen
2021-04-09  5:56                     ` Eli Zaretskii
2021-04-09 23:12                       ` Dmitry Gutov
2021-04-09 23:48                         ` Stefan Monnier
2021-04-10  1:56                           ` Dmitry Gutov
2021-04-10  4:04                             ` Stefan Monnier
2021-04-10 13:11                               ` Dmitry Gutov
2021-04-11 21:48                                 ` Stefan Monnier
2021-04-11 22:07                                   ` [External] : " Drew Adams
2021-04-11 22:10                                     ` Drew Adams
2021-04-11 21:52                                 ` Philip Kaludercic
2021-04-11 22:24                                   ` Dmitry Gutov
2021-04-12  1:32                                     ` Stefan Monnier
2021-04-12  4:16                                       ` [External] : " Drew Adams
2021-04-14  0:04                                       ` Dmitry Gutov
2021-04-10  7:27                             ` Eli Zaretskii
2021-04-10 10:53                               ` Dmitry Gutov
2021-04-10 11:09                                 ` Eli Zaretskii
2021-04-10  7:20                           ` Eli Zaretskii
2021-04-10 10:52                             ` Dmitry Gutov
2021-04-10 11:08                               ` Eli Zaretskii
2021-04-10 12:43                                 ` Dmitry Gutov
2021-04-10 13:10                                   ` Eli Zaretskii
2021-04-10 14:26                                     ` Dmitry Gutov
2021-04-10 10:56                             ` Stefan Kangas
2021-04-10 11:11                               ` Eli Zaretskii
2021-04-11 11:37                                 ` Stefan Kangas
2021-04-11 12:24                                   ` Philip Kaludercic
2021-04-11 12:58                                     ` Stefan Kangas
2021-04-11 13:42                                       ` Eli Zaretskii
2021-04-11 13:39                                     ` Eli Zaretskii
2021-04-11 17:16                                       ` Dmitry Gutov
2021-04-11 18:19                                         ` Eli Zaretskii
2021-04-11 18:36                                           ` [External] : " Drew Adams
2021-04-11 21:14                                           ` Dmitry Gutov
2021-04-11 13:37                                   ` Eli Zaretskii
2021-04-11 15:32                                     ` Stefan Kangas
2021-04-11 15:50                                       ` Eli Zaretskii
2021-04-11 15:55                                         ` Lars Ingebrigtsen
2021-04-11 16:49                                           ` Eli Zaretskii
2021-04-10 14:14                               ` [External] : " Drew Adams
2021-04-10 13:13                             ` Stefan Monnier
2021-04-10 14:00                               ` Eli Zaretskii
2021-04-10 11:11                           ` Gregory Heytings
2021-04-10 13:15                             ` Stefan Monnier
2021-04-10 13:40                               ` Gregory Heytings
2021-04-11 21:52                                 ` Stefan Monnier
2021-04-10  7:09                         ` Eli Zaretskii
2021-04-10 14:40                           ` Dmitry Gutov
2021-04-10 15:02                             ` Eli Zaretskii
2021-04-11  0:04                               ` Dmitry Gutov
2021-04-11  7:20                                 ` Eli Zaretskii
2021-04-10 14:40       ` Philip Kaludercic
2021-04-11  0:18         ` Dmitry Gutov
2021-04-11 11:18           ` Philip Kaludercic
2021-04-11 13:31             ` Jean Louis
2021-04-11 15:53               ` Philip Kaludercic
2021-04-12  9:24                 ` Jean Louis
2021-04-12 10:14                   ` Philip Kaludercic
2021-04-12 10:56                     ` Jean Louis [this message]
2021-04-12 11:30                       ` Philip Kaludercic
2021-04-12 16:28                     ` Eric Abrahamsen
2021-04-12 18:36                       ` [External] : " Drew Adams
2021-04-12 19:01                         ` Eric Abrahamsen
2021-04-12 19:21                           ` Drew Adams
2021-04-12 23:39                             ` Eric Abrahamsen
2021-04-13  2:06                               ` Drew Adams
2021-04-11 13:34             ` Eli Zaretskii
2021-04-11 16:14               ` Philip Kaludercic
2021-04-11 16:53                 ` Eli Zaretskii
2021-04-11 17:39                   ` Philip Kaludercic
2021-04-11 18:23                     ` Eli Zaretskii
2021-04-12 13:59         ` Stefan Monnier
2021-04-13 23:57           ` Dmitry Gutov
2021-04-21  9:20         ` Philip Kaludercic
2021-04-21  9:29           ` Eli Zaretskii
2021-04-21 10:27             ` Philip Kaludercic
2021-04-21 12:00               ` Eli Zaretskii
2021-04-21 12:50                 ` Philip Kaludercic
2021-04-21 13:02                   ` Eli Zaretskii
2021-04-21 14:25                     ` Jean Louis
2021-04-21 15:43                     ` Yuri Khan
2021-04-21 17:29                       ` Eli Zaretskii
2021-04-21 19:22                         ` Stefan Monnier
2021-04-21 19:25                           ` Eli Zaretskii
2021-04-21 19:35                             ` Stefan Monnier
2021-04-21 14:13                   ` Jean Louis
2021-04-21 14:35                   ` Stefan Monnier
2021-04-21 20:31                     ` [External] : " Drew Adams
2021-04-21 13:14           ` Daniel Mendler
2021-04-21 14:21             ` Philip Kaludercic
2021-04-05 14:59 ` Stefan Monnier
2021-04-05 15:32 ` Stefan Kangas
2021-04-05 17:55   ` Daniel Mendler
2021-04-05 18:10     ` Stefan Kangas
2021-04-09 21:37 ` Tassilo Horn
2021-04-09 23:23   ` Daniel Mendler
2021-04-10  7:17     ` Tassilo Horn
2021-04-10  9:33       ` Daniel Mendler
2021-04-10  9:44         ` Tassilo Horn
2021-04-10 10:07           ` Daniel Mendler
2021-04-10 13:34         ` Stefan Monnier
2021-04-10 14:07           ` Daniel Mendler
2021-04-10 15:19             ` Stefan Monnier
2021-04-10 17:27               ` Tassilo Horn
2021-04-10 20:58             ` Juri Linkov
2021-04-10  7:18     ` Eli Zaretskii
2021-04-10  9:21       ` Daniel Mendler
2021-04-10  9:30         ` Eli Zaretskii
2021-04-10  9:38           ` Daniel Mendler
2021-04-10 10:00             ` Eli Zaretskii
2021-04-10 10:14               ` Daniel Mendler
2021-04-10  9:38           ` Tassilo Horn
2021-04-10 10:02             ` Eli Zaretskii

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=YHQnW0F5hBs/llAv@protected.localdomain \
    --to=bugs@gnu.support \
    --cc=dgutov@yandex.ru \
    --cc=emacs-devel@gnu.org \
    --cc=philipk@posteo.net \
    /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).