From: Stefan Monnier <monnier@iro.umontreal.ca>
To: D <d.williams@posteo.net>
Cc: Eli Zaretskii <eliz@gnu.org>, emacs-devel@gnu.org
Subject: Re: prettify-symbols-mode, derived modes, and compose-region
Date: Thu, 04 Mar 2021 21:30:33 -0500 [thread overview]
Message-ID: <jwvy2f2ibbg.fsf-monnier+emacs@gnu.org> (raw)
In-Reply-To: <587ee071-985b-450a-2df7-0b4bb0f97b48@posteo.net> (D.'s message of "Fri, 5 Mar 2021 01:22:30 +0100")
> problem. The compose-region solution to this is simply to compose each
> character with a wide enough space, so the user simply has to use
> "\N{EM SPACE}<character>" instead of ?<character> in the alist.
> compose-region will then just superimpose the two and you get a "padded"
> character. It is very much possible that :align-to could fix this as
> well, judging from the documentation it does sound like it can reproduce
> this feature easily.
You should definitely try, but I suspect it's not going to work
well: :align-to wants to get an "absolute" position of the position
where the flexible space ends whereas in your case you only know how
wide "char + space" should be, but you don't know at which absolute
column "char" will happen to be displayed, so you can't know to which
column to :align-to.
Stefan
next prev parent reply other threads:[~2021-03-05 2:30 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-03-04 21:33 prettify-symbols-mode, derived modes, and compose-region D
2021-03-04 21:54 ` Eli Zaretskii
2021-03-05 0:22 ` D
2021-03-05 2:30 ` Stefan Monnier [this message]
2021-03-05 3:20 ` Stefan Kangas
2021-03-05 7:25 ` Eli Zaretskii
2021-03-05 7:18 ` Eli Zaretskii
2021-03-05 15:14 ` Stefan Monnier
2021-03-05 15:20 ` Eli Zaretskii
2021-03-05 15:51 ` Stefan Monnier
2021-03-05 15:57 ` Lars Ingebrigtsen
2021-03-05 7:08 ` Eli Zaretskii
2021-03-05 14:05 ` Clément Pit-Claudel
2021-03-05 21:24 ` D
2021-03-06 9:15 ` Eli Zaretskii
2021-03-06 10:43 ` D
2021-03-06 10:59 ` Eli Zaretskii
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