From: Noam Postavsky <npostavs@gmail.com>
To: Stefan Kangas <stefan@marxist.se>
Cc: Emerick Rogul <emerick@gmail.com>,
1501@debbugs.gnu.org, Chong Yidong <cyd@stupidchicken.com>
Subject: bug#1501: Emacs 22 loses undo buffer
Date: Wed, 21 Aug 2019 21:19:32 -0400 [thread overview]
Message-ID: <87ef1engij.fsf@gmail.com> (raw)
In-Reply-To: <CADwFkmnh8upA3Phnwp1pRgRzp1b2SQcki9O4D8rA7n2fcfNeEA@mail.gmail.com> (Stefan Kangas's message of "Wed, 21 Aug 2019 16:46:26 +0200")
Stefan Kangas <stefan@marxist.se> writes:
> Noam Postavsky <npostavs@gmail.com> writes:
>
>> Stefan Kangas <stefan@marxist.se> writes:
>>
>> > increase in the memory usage of each undo record, especially when
>> > using font-lock-mode. I'm not sure that is a serious problem, since
>> > memory is only getting cheaper, but it might be worth investigating.
>> > On the other hand, we could just decide that this is not worth the
>> > effort and close this as wontfix.
>>
>> Hmm, it sounds like the problem might just be due to saving text
>> properties in the undo records? If so, maybe a simple fix is to just
>> drop them (or drop only face and font-lock-face properties).
>
> Is it not worth saving also that information?
Definitely not face, since it's overwritten as soon as font-lock runs.
It's true font-lock-face can sometimes be set manually, though usually
it's computed by font-lock rules.
next prev parent reply other threads:[~2019-08-22 1:19 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-12-05 16:51 bug#1501: Emacs 22 loses undo buffer Emerick Rogul
2019-08-20 18:36 ` Stefan Kangas
2019-08-20 18:45 ` Noam Postavsky
2019-08-21 14:46 ` Stefan Kangas
2019-08-22 1:19 ` Noam Postavsky [this message]
2021-10-20 1:01 ` Stefan Kangas
2021-10-20 12:05 ` Eli Zaretskii
2021-10-21 20:46 ` Stefan Kangas
-- strict thread matches above, loose matches on Subject: below --
2008-12-06 4:01 Chong Yidong
2008-12-06 21:02 Emerick Rogul
2008-12-07 1:31 ` Chong Yidong
2008-12-07 2:03 ` Emerick Rogul
2008-12-07 5:36 ` Chong Yidong
2008-12-07 5:48 ` Chong Yidong
2008-12-07 12:36 ` Emerick Rogul
2009-01-27 20:58 Chong Yidong
2009-04-24 22:14 Suresh Kannan
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