From: Eli Zaretskii <eliz@gnu.org>
To: Gregory Heytings <ghe@sdf.org>
Cc: larsi@gnus.org, emacs-devel@gnu.org
Subject: Re: Suggest installing more fonts?
Date: Fri, 16 Oct 2020 21:48:01 +0300 [thread overview]
Message-ID: <83eelyuhwe.fsf@gnu.org> (raw)
In-Reply-To: <alpine.NEB.2.22.394.2010161751440453.32581@sdf.lonestar.org> (message from Gregory Heytings on Fri, 16 Oct 2020 16:09:35 +0000)
> Date: Fri, 16 Oct 2020 16:09:35 +0000
> From: Gregory Heytings <ghe@sdf.org>
> cc: larsi@gnus.org, emacs-devel@gnu.org
>
> I think I see what you mean: characters that have no fonts are discovered
> during redisplay, and at that moment it's too late to add text properties,
> which are not supposed to change anymore. It might be possible to add a
> special help-echo like property that would be added at the moment these
> characters are discovered, for example in produce_glyphless_glyph().
I don't recommend this, it is tricky and might cause problems.
Instead, it is much easier to have a feature implemented in Lisp that
would detect characters with no font glyphs and put help-echo on them.
We have infrastructure for such features in jit-lock.el.
> I don't think there would be "too many" such properties, it seems safe to
> assume that in general such characters follow each other and form a
> "block", and a single text property would be enough for one such block.
It is okay to assume, but I'd still prefer that we also check that the
assumption holds, and if so, do something to keep the number of
properties in check.
next prev parent reply other threads:[~2020-10-16 18:48 UTC|newest]
Thread overview: 118+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-10-16 10:54 Suggest installing more fonts? Lars Ingebrigtsen
2020-10-16 11:07 ` Eli Zaretskii
2020-10-16 11:30 ` Gregory Heytings via Emacs development discussions.
2020-10-16 12:50 ` Eli Zaretskii
2020-10-16 12:59 ` Gregory Heytings via Emacs development discussions.
2020-10-16 13:13 ` Eli Zaretskii
2020-10-16 14:38 ` Gregory Heytings via Emacs development discussions.
2020-10-16 15:48 ` Eli Zaretskii
2020-10-16 16:09 ` Gregory Heytings via Emacs development discussions.
2020-10-16 18:48 ` Eli Zaretskii [this message]
2020-10-16 19:40 ` Stefan Monnier
2020-10-17 6:57 ` Eli Zaretskii
2020-10-17 13:49 ` Stefan Monnier
2020-10-17 14:08 ` Eli Zaretskii
2020-10-17 15:04 ` Stefan Monnier
2020-10-17 15:18 ` Eli Zaretskii
2020-10-16 13:24 ` Lars Ingebrigtsen
2020-10-16 14:08 ` Gregory Heytings via Emacs development discussions.
2020-10-16 15:34 ` Eli Zaretskii
2020-10-16 15:51 ` Gregory Heytings via Emacs development discussions.
2020-10-16 13:24 ` Lars Ingebrigtsen
2020-10-16 13:30 ` Rudolf Schlatte
2020-10-17 6:14 ` Lars Ingebrigtsen
2020-10-16 14:41 ` Eli Zaretskii
2020-10-17 6:23 ` Lars Ingebrigtsen
2020-10-17 8:55 ` Eli Zaretskii
2020-10-18 8:03 ` Lars Ingebrigtsen
2020-10-18 15:21 ` Eli Zaretskii
2020-10-19 8:31 ` Lars Ingebrigtsen
2020-10-19 14:50 ` Eli Zaretskii
2020-10-20 10:28 ` Lars Ingebrigtsen
2020-10-20 14:31 ` Eli Zaretskii
2020-10-21 10:46 ` Lars Ingebrigtsen
2020-10-21 11:31 ` Michael Albinus
2020-10-21 11:58 ` Stefan Kangas
2020-10-21 14:54 ` Eli Zaretskii
2020-10-21 16:03 ` tofu-help-mode (was: Suggest installing more fonts?) Stefan Monnier
2020-10-22 12:07 ` tofu-help-mode Lars Ingebrigtsen
2020-10-22 15:21 ` tofu-help-mode Stefan Monnier
2020-10-23 10:46 ` tofu-help-mode Lars Ingebrigtsen
2020-10-21 17:46 ` Suggest installing more fonts? Michael Albinus
2020-10-21 18:14 ` Eli Zaretskii
2020-10-22 7:27 ` Michael Albinus
2020-10-22 13:09 ` Eli Zaretskii
2020-10-23 16:53 ` Michael Albinus
2020-10-23 18:13 ` Eli Zaretskii
2020-10-25 11:47 ` Michael Albinus
2020-10-25 15:19 ` Eli Zaretskii
2020-10-21 17:25 ` Juri Linkov
2020-10-21 11:59 ` Basil L. Contovounesios
2020-10-21 12:05 ` Lars Ingebrigtsen
2020-10-21 12:31 ` Stephen Berman
2020-10-21 14:47 ` Eli Zaretskii
2020-10-21 20:19 ` Rasmus
2020-10-22 2:34 ` Eli Zaretskii
2020-10-22 12:34 ` Rasmus
2020-10-22 13:35 ` Eli Zaretskii
2020-10-21 20:19 ` Rasmus
2020-10-22 11:32 ` Lars Ingebrigtsen
2020-10-22 12:02 ` Gregory Heytings via Emacs development discussions.
2020-10-22 12:08 ` Lars Ingebrigtsen
2020-10-22 12:29 ` Gregory Heytings via Emacs development discussions.
2020-10-22 13:31 ` Eli Zaretskii
2020-10-23 3:49 ` Richard Stallman
2020-10-23 6:59 ` Eli Zaretskii
2020-10-23 8:28 ` Andreas Schwab
2020-10-23 11:01 ` Eli Zaretskii
2020-10-23 15:50 ` Andreas Schwab
2020-10-23 16:38 ` Stefan Monnier
2020-10-23 18:03 ` Eli Zaretskii
2020-10-23 18:43 ` Robert Pluim
2020-10-23 19:31 ` Eli Zaretskii
2020-10-24 9:35 ` Robert Pluim
2020-10-23 10:45 ` Lars Ingebrigtsen
2020-10-23 11:07 ` Eli Zaretskii
2020-10-23 14:59 ` Stefan Monnier
2020-10-23 17:56 ` Eli Zaretskii
2020-10-23 18:13 ` Stefan Monnier
2020-10-23 18:23 ` Eli Zaretskii
2020-10-23 18:36 ` Stefan Monnier
2020-10-23 18:18 ` Gregory Heytings via Emacs development discussions.
2020-10-22 13:16 ` Eli Zaretskii
2020-10-22 13:40 ` Gregory Heytings via Emacs development discussions.
2020-10-22 13:52 ` Eli Zaretskii
2020-10-22 14:20 ` Gregory Heytings via Emacs development discussions.
2020-10-22 15:50 ` Eli Zaretskii
2020-10-16 18:48 ` Stefan Monnier
2020-10-16 19:13 ` Eli Zaretskii
2020-10-16 19:37 ` Stefan Monnier
2020-10-17 6:37 ` Eli Zaretskii
2020-10-17 13:44 ` Stefan Monnier
2020-10-16 19:42 ` Gregory Heytings via Emacs development discussions.
2020-10-16 19:49 ` Stefan Monnier
2020-10-16 22:14 ` Gregory Heytings via Emacs development discussions.
2020-10-16 22:35 ` Stefan Monnier
2020-10-16 23:02 ` Gregory Heytings via Emacs development discussions.
2020-10-17 7:46 ` Eli Zaretskii
2020-10-17 11:21 ` Gregory Heytings via Emacs development discussions.
2020-10-17 12:13 ` Eli Zaretskii
2020-10-17 13:09 ` Gregory Heytings via Emacs development discussions.
2020-10-17 13:33 ` Eli Zaretskii
2020-10-17 16:09 ` Gregory Heytings via Emacs development discussions.
2020-10-17 16:30 ` Eli Zaretskii
2020-10-17 17:37 ` Gregory Heytings via Emacs development discussions.
2020-10-17 17:58 ` Eli Zaretskii
2020-10-17 18:36 ` Gregory Heytings via Emacs development discussions.
2020-10-17 18:50 ` Eli Zaretskii
2020-10-17 18:56 ` Eli Zaretskii
2020-10-17 19:18 ` Gregory Heytings via Emacs development discussions.
2020-10-17 19:33 ` Eli Zaretskii
2020-10-18 8:06 ` Lars Ingebrigtsen
2020-10-18 14:55 ` Eli Zaretskii
2020-10-17 17:30 ` Drew Adams
2020-10-18 4:12 ` Richard Stallman
2020-10-18 14:45 ` Eli Zaretskii
2020-10-20 22:46 ` Stephen Leake
2020-10-17 6:31 ` Lars Ingebrigtsen
2020-10-17 9:08 ` Eli Zaretskii
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