From: Eli Zaretskii <eliz@gnu.org>
To: Lars Ingebrigtsen <larsi@gnus.org>
Cc: mattiase@acm.org, raman@google.com, gregory@heytings.org,
schwab@linux-m68k.org, stefankangas@gmail.com,
emacs-devel@gnu.org
Subject: Re: Ligature support
Date: Fri, 05 Nov 2021 17:26:12 +0200 [thread overview]
Message-ID: <83r1bud3or.fsf@gnu.org> (raw)
In-Reply-To: <87zgqiiq8c.fsf@gnus.org> (message from Lars Ingebrigtsen on Fri, 05 Nov 2021 16:20:19 +0100)
> From: Lars Ingebrigtsen <larsi@gnus.org>
> Cc: gregory@heytings.org, mattiase@acm.org, emacs-devel@gnu.org,
> schwab@linux-m68k.org, stefankangas@gmail.com, raman@google.com
> Date: Fri, 05 Nov 2021 16:20:19 +0100
>
> Eli Zaretskii <eliz@gnu.org> writes:
>
> > Why do we need to depend on the font? As I said, if the font doesn't
> > have a ligature, font-shape-gstring will return nil, and we will then
> > display the characters as individual glyphs. Isn't that what is
> > expected?
>
> Different fonts have different ligatures (or "ligatures"). Since we
> don't want to send all strings through font-shape-gstring (because
> that'll be slow), we'll have to be selective as usual, I think?
How many ligatures are there in the best of all fonts? If the number
of the ligatures is not too large, then passing them to the shaper may
not be such a terrible idea.
So I think we should first consider which ligatures we'd like to
support, and whether the answer differs depending on the major mode.
For example, ligatures like ==> etc. are relevant to prog-mode modes,
but probably not to text modes. By contrast, "ff" and "fi" are
relevant only to text mode, I think.
next prev parent reply other threads:[~2021-11-05 15:26 UTC|newest]
Thread overview: 342+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-10-25 18:32 Entering emojis Lars Ingebrigtsen
2021-10-25 18:45 ` Eli Zaretskii
2021-10-25 19:21 ` Lars Ingebrigtsen
2021-10-25 19:26 ` Eli Zaretskii
2021-10-25 19:36 ` Lars Ingebrigtsen
2021-10-25 19:40 ` Eli Zaretskii
2021-10-25 19:49 ` Lars Ingebrigtsen
2021-10-25 20:14 ` Gregory Heytings
2021-10-25 20:49 ` Lars Ingebrigtsen
2021-10-26 2:01 ` Howard Melman
2021-10-26 2:29 ` Eli Zaretskii
2021-10-26 3:38 ` Lars Ingebrigtsen
2021-10-26 9:10 ` Stefan Kangas
2021-10-26 11:50 ` Lars Ingebrigtsen
2021-10-26 14:35 ` Lars Ingebrigtsen
2021-10-27 12:18 ` Lars Ingebrigtsen
2021-10-27 13:49 ` Lars Ingebrigtsen
2021-10-26 15:46 ` Stefan Kangas
2021-10-26 16:09 ` Lars Ingebrigtsen
2021-10-26 16:36 ` Lars Ingebrigtsen
2021-10-26 16:42 ` Lars Ingebrigtsen
2021-10-26 16:52 ` Eli Zaretskii
2021-10-26 17:36 ` Lars Ingebrigtsen
2021-10-26 16:49 ` Eli Zaretskii
2021-10-26 17:09 ` Robert Pluim
2021-10-26 17:14 ` Eli Zaretskii
2021-10-26 17:33 ` Lars Ingebrigtsen
2021-10-26 17:39 ` Eli Zaretskii
2021-10-27 12:44 ` Lars Ingebrigtsen
2021-10-26 17:43 ` Lars Ingebrigtsen
2021-10-26 17:54 ` Gregory Heytings
2021-10-26 18:14 ` Lars Ingebrigtsen
2021-10-26 17:55 ` Robert Pluim
2021-10-26 18:08 ` Lars Ingebrigtsen
2021-10-26 17:46 ` Robert Pluim
2021-10-26 17:58 ` Lars Ingebrigtsen
2021-10-26 18:07 ` Robert Pluim
2021-10-26 18:14 ` Lars Ingebrigtsen
2021-10-26 18:18 ` Robert Pluim
2021-10-26 18:24 ` Lars Ingebrigtsen
2021-10-26 19:18 ` describe-char on emoji sequences Lars Ingebrigtsen
2021-10-26 19:28 ` Eli Zaretskii
2021-10-26 19:42 ` Lars Ingebrigtsen
2021-10-27 13:35 ` James Cloos
2021-10-27 13:43 ` Lars Ingebrigtsen
2021-10-27 15:07 ` Andreas Schwab
2021-10-27 15:15 ` Lars Ingebrigtsen
2021-10-27 15:59 ` Robert Pluim
2021-10-27 16:11 ` Andreas Schwab
2021-10-27 16:05 ` Eli Zaretskii
2021-10-27 16:12 ` Andreas Schwab
2021-10-27 16:23 ` Lars Ingebrigtsen
2021-10-27 16:34 ` Andreas Schwab
2021-10-27 16:36 ` Eli Zaretskii
2021-10-27 16:43 ` Andreas Schwab
2021-10-27 17:02 ` Eli Zaretskii
2021-10-27 17:32 ` Robert Pluim
2021-10-27 19:40 ` Andreas Schwab
2021-10-27 19:48 ` Gregory Heytings
2021-10-27 16:26 ` Eli Zaretskii
2021-10-27 16:36 ` Andreas Schwab
2021-10-27 17:08 ` James Cloos
2021-10-27 17:13 ` Eli Zaretskii
2021-10-27 17:36 ` Robert Pluim
2021-10-27 18:23 ` Eli Zaretskii
2021-10-28 7:02 ` James Cloos
2021-10-28 7:46 ` Robert Pluim
2021-10-28 9:34 ` Eli Zaretskii
2021-10-28 9:39 ` Robert Pluim
2021-10-28 9:16 ` Eli Zaretskii
2021-10-28 19:24 ` James Cloos
2021-10-28 19:34 ` Eli Zaretskii
2021-10-28 12:21 ` Richard Stallman
2021-10-28 12:23 ` Lars Ingebrigtsen
2021-10-27 13:49 ` Eli Zaretskii
2021-10-27 13:57 ` Eli Zaretskii
2021-10-27 14:25 ` Lars Ingebrigtsen
2021-10-27 16:30 ` Eli Zaretskii
2021-10-27 17:30 ` T.V Raman
2021-10-28 14:35 ` Lars Ingebrigtsen
2021-10-28 23:17 ` Lars Ingebrigtsen
2021-10-26 16:45 ` Entering emojis Stefan Kangas
2021-10-26 17:34 ` Lars Ingebrigtsen
2021-10-26 18:39 ` William Xu
2021-10-26 19:35 ` Stefan Monnier
2021-10-26 20:41 ` Broken Stefan Kangas
2021-10-26 21:12 ` Entering emojis Stefan Kangas
2021-10-27 1:38 ` Howard Melman
2021-10-27 8:27 ` Mattias Engdegård
2021-10-27 8:51 ` Andreas Schwab
2021-10-27 14:14 ` T.V Raman
2021-10-27 15:14 ` Gregory Heytings
2021-10-27 17:20 ` Eli Zaretskii
2021-10-27 16:01 ` Eli Zaretskii
2021-10-27 17:50 ` Gregory Heytings
2021-10-27 18:27 ` Eli Zaretskii
2021-10-27 18:38 ` Gregory Heytings
2021-10-27 18:41 ` Eli Zaretskii
2021-10-27 18:56 ` Gregory Heytings
2021-10-27 19:15 ` Eli Zaretskii
2021-10-27 19:20 ` Gregory Heytings
2021-10-28 5:56 ` Eli Zaretskii
2021-10-28 6:50 ` Gregory Heytings
2021-10-28 9:11 ` Eli Zaretskii
2021-10-28 9:37 ` Gregory Heytings
2021-10-28 9:39 ` Gregory Heytings
2021-10-28 10:00 ` Eli Zaretskii
2021-10-28 10:05 ` Gregory Heytings
2021-10-28 10:25 ` Gregory Heytings
2021-10-28 10:33 ` Eli Zaretskii
2021-10-28 11:20 ` Gregory Heytings
2021-10-28 13:26 ` Eli Zaretskii
2021-10-28 13:55 ` Gregory Heytings
2021-10-28 16:27 ` Eli Zaretskii
2021-10-28 17:06 ` Gregory Heytings
2021-10-28 17:37 ` Eli Zaretskii
2021-10-28 21:10 ` Gregory Heytings
2021-10-29 7:51 ` Eli Zaretskii
2021-10-29 10:32 ` Gregory Heytings
2021-10-29 10:54 ` Eli Zaretskii
2021-10-28 21:40 ` Lars Ingebrigtsen
2021-10-29 7:31 ` Eli Zaretskii
2021-10-29 12:51 ` Lars Ingebrigtsen
2021-10-29 13:31 ` Eli Zaretskii
2021-11-05 5:04 ` Lars Ingebrigtsen
2021-11-05 7:56 ` Ligature support (was: Entering emojis) Eli Zaretskii
2021-11-05 13:42 ` Ligature support Lars Ingebrigtsen
2021-11-05 14:33 ` Eli Zaretskii
2021-11-05 14:38 ` Lars Ingebrigtsen
2021-11-05 15:14 ` Eli Zaretskii
2021-11-05 15:20 ` Lars Ingebrigtsen
2021-11-05 15:26 ` Lars Ingebrigtsen
2021-11-05 15:40 ` Lars Ingebrigtsen
2021-11-05 16:35 ` Eli Zaretskii
2021-11-05 15:26 ` Eli Zaretskii [this message]
2021-11-05 15:37 ` Lars Ingebrigtsen
2021-11-05 15:56 ` Lars Ingebrigtsen
2021-11-05 16:39 ` Eli Zaretskii
2021-11-05 16:34 ` Eli Zaretskii
2021-11-05 16:45 ` Lars Ingebrigtsen
2021-11-05 17:05 ` Yuri Khan
2021-11-05 17:16 ` Lars Ingebrigtsen
2021-11-05 18:54 ` Eli Zaretskii
2021-11-05 22:17 ` Lars Ingebrigtsen
2021-11-06 7:04 ` Eli Zaretskii
2021-11-06 18:02 ` Lars Ingebrigtsen
2021-11-05 20:09 ` Yuri Khan
2021-11-05 22:20 ` Lars Ingebrigtsen
2021-11-06 9:01 ` Yuri Khan
2021-11-05 17:13 ` tomas
2021-11-05 19:14 ` Eli Zaretskii
2021-11-05 19:52 ` tomas
2021-11-05 20:16 ` Werner LEMBERG
2021-11-05 20:18 ` tomas
2021-11-05 20:35 ` Eli Zaretskii
2021-11-05 20:30 ` Eli Zaretskii
2021-11-06 9:16 ` tomas
2021-11-06 9:49 ` Eli Zaretskii
2021-11-05 20:43 ` Stefan Kangas
2021-11-05 20:49 ` Eli Zaretskii
2021-11-05 17:18 ` Lars Ingebrigtsen
2021-11-05 18:55 ` Eli Zaretskii
2021-11-05 19:11 ` Eli Zaretskii
2021-11-05 22:38 ` Lars Ingebrigtsen
2021-11-05 22:50 ` Lars Ingebrigtsen
2021-11-05 23:02 ` Lars Ingebrigtsen
2021-11-06 8:32 ` Eli Zaretskii
2021-11-06 18:08 ` Lars Ingebrigtsen
2021-11-06 18:34 ` Eli Zaretskii
2021-11-06 5:23 ` Lars Ingebrigtsen
2021-11-06 8:40 ` Eli Zaretskii
2021-11-12 20:28 ` chad
2021-11-15 4:51 ` Richard Stallman
2021-11-15 6:19 ` Stefan Kangas
2021-11-18 3:50 ` Richard Stallman
2021-11-15 12:52 ` Eli Zaretskii
2021-11-06 7:12 ` Eli Zaretskii
2021-11-06 18:05 ` Lars Ingebrigtsen
2021-11-06 18:30 ` Eli Zaretskii
2021-11-06 13:25 ` Benjamin Riefenstahl
2021-11-06 13:34 ` Eli Zaretskii
2021-11-06 17:03 ` Benjamin Riefenstahl
2021-11-06 17:33 ` Eli Zaretskii
2021-10-27 19:23 ` Entering emojis Gregory Heytings
2021-10-28 5:58 ` Eli Zaretskii
2021-10-27 14:16 ` T.V Raman
2021-10-27 12:09 ` Eli Zaretskii
2021-10-27 12:27 ` Robert Pluim
2021-10-27 11:48 ` Eli Zaretskii
2021-10-27 12:36 ` Robert Pluim
2021-10-27 13:07 ` Robert Pluim
2021-10-27 13:09 ` Lars Ingebrigtsen
2021-10-27 13:26 ` Robert Pluim
2021-10-27 13:50 ` Eli Zaretskii
2021-11-08 19:52 ` chad
2021-11-08 19:58 ` Eli Zaretskii
2021-10-27 13:34 ` Eli Zaretskii
2021-10-27 15:12 ` Robert Pluim
2021-10-27 16:08 ` Eli Zaretskii
2021-10-27 17:00 ` Robert Pluim
2021-10-27 13:22 ` Eli Zaretskii
2021-10-27 13:28 ` Robert Pluim
2021-10-27 14:06 ` Stefan Kangas
2021-10-27 14:15 ` Eli Zaretskii
2021-10-27 14:22 ` Stefan Kangas
2021-10-27 15:34 ` Michael Albinus
2021-11-02 23:36 ` Jonas Bernoulli
2021-11-04 6:27 ` Lars Ingebrigtsen
2021-11-04 15:12 ` Jonas Bernoulli
2021-11-04 17:18 ` Lars Ingebrigtsen
2021-11-04 18:34 ` T.V Raman
2021-10-25 19:42 ` Gregory Heytings
2021-10-25 20:10 ` Lars Ingebrigtsen
2021-10-25 20:18 ` Lars Ingebrigtsen
2021-10-25 20:31 ` Lars Ingebrigtsen
2021-10-25 20:36 ` Matthias Meulien
2021-10-26 2:36 ` Eli Zaretskii
2021-10-25 20:54 ` T.V Raman
2021-10-26 21:20 ` Lars Ingebrigtsen
2021-10-26 21:43 ` Stefan Kangas
2021-10-27 12:45 ` Lars Ingebrigtsen
2021-10-27 14:22 ` Stefan Kangas
2021-10-27 12:01 ` Eli Zaretskii
2021-10-27 12:28 ` Lars Ingebrigtsen
2021-10-27 13:19 ` Eli Zaretskii
2021-11-02 23:40 ` Jonas Bernoulli
2021-10-27 14:38 ` Stefan Kangas
2021-10-27 15:40 ` Lars Ingebrigtsen
2021-10-27 17:11 ` Move shorthands.el to lisp/emacs-lisp/? Stefan Kangas
2021-10-28 21:28 ` Lars Ingebrigtsen
2021-10-29 5:31 ` Eli Zaretskii
2021-10-29 9:45 ` Yuri Khan
2021-10-29 10:10 ` Eli Zaretskii
2021-10-29 10:31 ` Yuri Khan
2021-10-29 10:41 ` Eli Zaretskii
2021-10-29 10:51 ` Dmitry Gutov
2021-10-29 12:37 ` Lars Ingebrigtsen
2021-10-27 15:52 ` Entering emojis Eli Zaretskii
2021-10-27 16:27 ` Stefan Kangas
2021-10-27 16:37 ` Eli Zaretskii
2021-10-27 15:56 ` Stefan Monnier
2021-10-27 16:06 ` Lars Ingebrigtsen
2021-10-27 16:20 ` Eli Zaretskii
2021-10-27 16:27 ` Stefan Kangas
2021-10-28 21:27 ` Lars Ingebrigtsen
2021-11-02 23:48 ` Jonas Bernoulli
2021-11-03 1:50 ` T.V Raman
2021-11-04 6:28 ` Lars Ingebrigtsen
2021-10-28 14:14 ` Kévin Le Gouguec
2021-10-28 14:16 ` Lars Ingebrigtsen
2021-10-28 14:31 ` Lars Ingebrigtsen
2021-10-28 14:56 ` Kévin Le Gouguec
2021-10-28 14:59 ` Lars Ingebrigtsen
2021-10-28 15:27 ` Kévin Le Gouguec
2021-10-28 21:43 ` Lars Ingebrigtsen
2021-10-29 9:32 ` Kévin Le Gouguec
2021-10-29 13:03 ` Lars Ingebrigtsen
2021-10-29 15:30 ` Kévin Le Gouguec
2021-10-29 16:01 ` Lars Ingebrigtsen
2021-10-29 16:45 ` Kévin Le Gouguec
2021-10-29 17:18 ` Lars Ingebrigtsen
2021-11-03 0:08 ` Jonas Bernoulli
2021-11-03 16:15 ` Jonas Bernoulli
2021-10-27 17:25 ` Lars Ingebrigtsen
2021-10-28 9:18 ` Lars Ingebrigtsen
2021-10-28 10:33 ` Stefan Kangas
2021-10-28 11:08 ` Lars Ingebrigtsen
2021-10-28 11:19 ` Lars Ingebrigtsen
2021-10-28 12:54 ` Eli Zaretskii
2021-10-28 12:56 ` Lars Ingebrigtsen
2021-10-28 13:32 ` Eli Zaretskii
2021-10-28 13:54 ` Lars Ingebrigtsen
2021-10-28 15:57 ` Eli Zaretskii
2021-10-28 21:49 ` Lars Ingebrigtsen
2021-10-29 5:45 ` Eli Zaretskii
2021-10-29 12:46 ` Lars Ingebrigtsen
2021-10-29 13:30 ` Eli Zaretskii
2021-10-29 13:38 ` Lars Ingebrigtsen
2021-10-29 13:55 ` Eli Zaretskii
2021-10-29 14:12 ` Lars Ingebrigtsen
2021-10-29 14:30 ` Lars Ingebrigtsen
2021-10-29 14:45 ` Lars Ingebrigtsen
2021-10-29 14:53 ` Lars Ingebrigtsen
2021-10-29 16:02 ` Eli Zaretskii
2021-10-29 16:39 ` Lars Ingebrigtsen
2021-10-29 16:01 ` Eli Zaretskii
2021-10-29 16:34 ` Lars Ingebrigtsen
2021-10-29 18:06 ` Eli Zaretskii
2021-10-29 18:23 ` Lars Ingebrigtsen
2021-10-29 19:46 ` Eli Zaretskii
2021-10-29 20:43 ` Lars Ingebrigtsen
2021-10-29 20:57 ` Lars Ingebrigtsen
2021-10-29 21:09 ` Lars Ingebrigtsen
2021-10-29 21:21 ` Lars Ingebrigtsen
2021-10-30 6:08 ` Eli Zaretskii
2021-10-30 7:06 ` Andreas Schwab
2021-11-03 18:56 ` Eli Zaretskii
2021-10-30 12:17 ` Lars Ingebrigtsen
2021-10-28 13:56 ` Robert Pluim
2021-10-28 20:44 ` Stefan Kangas
2021-10-28 21:51 ` Lars Ingebrigtsen
2021-10-28 22:34 ` Stefan Kangas
2021-10-28 22:39 ` Lars Ingebrigtsen
2021-11-03 0:35 ` Jonas Bernoulli
2021-10-28 13:30 ` Eli Zaretskii
2021-10-28 23:37 ` Stefan Kangas
2021-10-28 23:48 ` Lars Ingebrigtsen
2021-10-29 6:10 ` Eli Zaretskii
2021-10-29 6:09 ` Eli Zaretskii
2021-10-29 14:43 ` Stefan Kangas
2021-10-29 16:06 ` Eli Zaretskii
2021-10-29 17:01 ` Stefan Kangas
2022-01-29 10:23 ` Eli Zaretskii
2021-10-29 17:41 ` Daniel Martín
2021-10-29 21:46 ` Lars Ingebrigtsen
2021-10-29 22:16 ` Lars Ingebrigtsen
2021-10-30 6:19 ` Eli Zaretskii
2021-10-30 6:36 ` Eli Zaretskii
2021-10-30 12:25 ` Lars Ingebrigtsen
2021-10-30 12:30 ` Eli Zaretskii
2021-10-30 12:34 ` Lars Ingebrigtsen
2021-10-30 12:49 ` Eli Zaretskii
2021-10-30 12:20 ` Lars Ingebrigtsen
2021-10-30 6:22 ` Eli Zaretskii
2021-10-30 14:26 ` Howard Melman
2021-10-28 14:19 ` T.V Raman
2021-10-28 14:33 ` Lars Ingebrigtsen
2021-10-28 16:04 ` Eli Zaretskii
2021-11-01 19:47 ` Jonas Bernoulli
2021-11-02 2:06 ` Lars Ingebrigtsen
2021-11-03 1:27 ` Jonas Bernoulli
2021-11-03 2:07 ` Reading multiple files (was: Entering emojis) Stefan Monnier
2021-11-03 16:21 ` Jonas Bernoulli
2021-11-04 17:31 ` Entering emojis Lars Ingebrigtsen
2021-11-13 19:43 ` Problem with some new emoji in Emacs Jean Louis
2021-11-13 20:16 ` Eli Zaretskii
2021-11-13 20:49 ` Jean Louis
2021-11-14 6:35 ` Eli Zaretskii
2021-11-14 7:50 ` Jean Louis
2021-11-13 20:37 ` Stefan Monnier
2021-11-13 20:53 ` Jean Louis
2021-11-13 21:14 ` Jean Louis
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