From: Stefan Monnier via "Bug reports for GNU Emacs, the Swiss army knife of text editors" <bug-gnu-emacs@gnu.org>
To: Ihor Radchenko <yantar92@posteo.net>
Cc: 68849@debbugs.gnu.org, Kostas Papadakis <papadakis.k@yandex.com>
Subject: bug#68849: 30.0.50; font-lock does not flush fontification after calling open-line
Date: Sat, 03 Feb 2024 13:46:58 -0500 [thread overview]
Message-ID: <jwvwmrljsme.fsf-monnier+emacs@gnu.org> (raw)
In-Reply-To: <875xz9oep2.fsf@localhost> (Ihor Radchenko's message of "Wed, 31 Jan 2024 12:44:09 +0000")
> I am not 100% sure if is Emacs bug, but my preliminary testing showed
> anomalies in `jit-lock-after-change' -
> (put-text-property jit-lock-start jit-lock-end 'fontified nil) somehow
> did not apply the text properties. I suspect that I missed something
> though.
AFAICT the `put-text-property` works fine :-)
The problem is that your `org-fontify-extend-region` does not spread the
change to the "next line".
When `font-lock-extend-after-change-region-function` is nil, Emacs does
that for you. Quoting `font-lock-extend-jit-lock-region-after-change`:
(when (< end (point-max))
(setq end
(cond
((get-text-property end 'font-lock-multiline)
(or (text-property-any end (point-max)
'font-lock-multiline nil)
(point-max)))
;; If `end' has been set by the function above, don't corrupt it.
(font-lock-extend-after-change-region-function end)
;; Rounding up to a whole number of lines should include the
;; line right after `end'. Typical case: the first char of
;; the line was deleted. Or a \n was inserted in the middle
;; of a line.
(t (1+ end)))))
I still hope you can change Org mode so it uses
`font-lock-extend-region-functions` instead of
`font-lock-extend-after-change-region-function`.
Stefan
next prev parent reply other threads:[~2024-02-03 18:46 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-01-31 12:44 bug#68849: 30.0.50; font-lock does not flush fontification after calling open-line Ihor Radchenko
2024-02-03 9:55 ` Eli Zaretskii
2024-02-03 18:46 ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors [this message]
2024-02-04 13:33 ` Ihor Radchenko
2024-02-04 14:24 ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
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