GNU bug report logs - #56682
Fix the long lines font locking related slowdowns

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From: Gregory Heytings <gregory <at> heytings.org>
To: Dmitry Gutov <dgutov <at> yandex.ru>
Cc: 56682 <at> debbugs.gnu.org, Eli Zaretskii <eliz <at> gnu.org>, Stefan Monnier <monnier <at> iro.umontreal.ca>
Subject: bug#56682: Fix the long lines font locking related slowdowns
Date: Sun, 31 Jul 2022 22:50:23 +0000

>
> But one big slow scan (and how slow it is actually depends on a 
> particular major mode) followed by responsive editing sounds much better 
> than what we've had before.
>

Indeed.  But then the question is: is it possible to do that scan while 
opening the file, before it becomes editable?  It is way better to wait a 
few seconds more while the file is being opened than to wait before two 
basic motion commands when the file is already opened.

>
> So I would recommend against trying to solve this part right now.
>

It doesn't only solve the syntax-ppss problem, it also makes flyspell-mode 
usable in such files, for example.

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