From: Lars Ingebrigtsen <larsi@gnus.org>
To: Eli Zaretskii <eliz@gnu.org>
Cc: Imran Khan <contact@imrankhan.live>, 48734@debbugs.gnu.org
Subject: bug#48734: 28.0.50; Performance regression in `string-width`?
Date: Sun, 30 May 2021 14:18:44 +0200 [thread overview]
Message-ID: <87r1hoza6z.fsf@gnus.org> (raw)
In-Reply-To: <835yz04ean.fsf@gnu.org> (Eli Zaretskii's message of "Sun, 30 May 2021 15:05:52 +0300")
Eli Zaretskii <eliz@gnu.org> writes:
> If deft-mode wants to allocate space on display, then they really do
> need to use string-width, but then the changes which make them "hang"
> are really important, because before that string-width would compute
> the result incorrectly when characters are composed on display.
string-width has always been approximate (but fast), hasn't it? And to
determine the actual display width you've had to use
window-text-pixel-size or the like.
Perhaps string-width should get an extra parameter to get the new, more
accurate computation, and get the old, fast computation without this
parameter.
--
(domestic pets only, the antidote for overdose, milk.)
bloggy blog: http://lars.ingebrigtsen.no
next prev parent reply other threads:[~2021-05-30 12:18 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-05-29 20:45 bug#48734: 28.0.50; Performance regression in `string-width`? Imran Khan
2021-05-30 6:42 ` Eli Zaretskii
[not found] ` <87y2bwk1nj.fsf@teknik.io>
2021-05-30 10:00 ` Eli Zaretskii
2021-05-30 11:23 ` Imran Khan
2021-05-30 12:05 ` Eli Zaretskii
2021-05-30 12:18 ` Lars Ingebrigtsen [this message]
2021-05-30 13:32 ` Eli Zaretskii
2021-05-31 5:41 ` Lars Ingebrigtsen
2021-05-31 12:36 ` Imran Khan
2021-05-31 14:28 ` Eli Zaretskii
2021-05-31 18:51 ` Eli Zaretskii
2021-06-05 11:20 ` Eli Zaretskii
2021-06-05 15:25 ` Imran Khan
2021-06-05 15:45 ` Eli Zaretskii
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