From: Stefan Monnier <monnier@iro.umontreal.ca>
To: Qiantan Hong <qhong@mit.edu>
Cc: Yuan Fu <casouri@gmail.com>, Emacs Devel <emacs-devel@gnu.org>
Subject: Re: Question: add-face-text-property for 'font-lock-face?
Date: Sun, 29 Aug 2021 19:50:44 -0400 [thread overview]
Message-ID: <jwvzgszg6dr.fsf-monnier+emacs@gnu.org> (raw)
In-Reply-To: <00793DAF-B978-4857-AF5F-60F9C79B2BE0@mit.edu> (Qiantan Hong's message of "Sun, 29 Aug 2021 04:47:11 +0000")
> its author. The naive way that create an overlay for each character
> clearly doesn’t work (text property however works, because Emacs itself
> always merge them). We would need to look at overlays around the insertion
> point and opportunistically merge them.
IIRC we have pretty much exactly that need in outline.el where we use
overlays to put an `invisible` property. See `outline-flag-region`.
AFAICT this code currently doesn't try and merge overlays upon
insertion, but it shouldn't be hard to add that functionality.
Stefan
next prev parent reply other threads:[~2021-08-29 23:50 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-08-29 4:13 Question: add-face-text-property for 'font-lock-face? Qiantan Hong
2021-08-29 4:24 ` Yuan Fu
[not found] ` <B73E855F-7E55-4217-BD43-E1272939E491@mit.edu>
2021-08-29 4:36 ` Qiantan Hong
2021-08-30 8:22 ` Ihor Radchenko
[not found] ` <945E4D23-3D8C-45AB-9C10-992638A30607@gmail.com>
2021-08-29 4:47 ` Qiantan Hong
2021-08-29 23:50 ` Stefan Monnier [this message]
2021-08-29 7:05 ` Eli Zaretskii
2021-08-29 7:19 ` Qiantan Hong
2021-08-29 7:49 ` Eli Zaretskii
2021-08-29 16:15 ` Clément Pit-Claudel
2021-08-29 21:13 ` Qiantan Hong
2021-08-29 23:47 ` Stefan Monnier
2021-08-30 0:41 ` Qiantan Hong
2021-08-30 8:18 ` Ihor Radchenko
2021-08-29 16:13 ` Clément Pit-Claudel
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
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=jwvzgszg6dr.fsf-monnier+emacs@gnu.org \
--to=monnier@iro.umontreal.ca \
--cc=casouri@gmail.com \
--cc=emacs-devel@gnu.org \
--cc=qhong@mit.edu \
/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 external index
https://git.savannah.gnu.org/cgit/emacs.git
https://git.savannah.gnu.org/cgit/emacs/org-mode.git
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.