From: Stefan Monnier <monnier@iro.umontreal.ca>
To: Eli Zaretskii <eliz@gnu.org>
Cc: d.williams@posteo.net, emacs-devel@gnu.org
Subject: Re: prettify-symbols-mode, derived modes, and compose-region
Date: Fri, 05 Mar 2021 10:14:50 -0500 [thread overview]
Message-ID: <jwvk0qlhbxt.fsf-monnier+emacs@gnu.org> (raw)
In-Reply-To: <83blbyysox.fsf@gnu.org> (Eli Zaretskii's message of "Fri, 05 Mar 2021 09:18:22 +0200")
>> 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.
>
> If the width of the additional space is known, there's also the :width
> display property.
Indeed, there's `:width` but in the case under discussion the desired
with of the space is something like `1 - width-of-previous-char`, IOW
something ELisp can't know when it puts the text property.
I think it would take something like a `width` property that is
non-replacing (i.e. can be applied to non-spaces and doesn't hide the
text to which it's applied).
Stefan
next prev parent reply other threads:[~2021-03-05 15:14 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
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 [this message]
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
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=jwvk0qlhbxt.fsf-monnier+emacs@gnu.org \
--to=monnier@iro.umontreal.ca \
--cc=d.williams@posteo.net \
--cc=eliz@gnu.org \
--cc=emacs-devel@gnu.org \
/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).