GNU bug report logs - #72830
Big rectangular selections are slow

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Message #41 received at submit <at> debbugs.gnu.org (full text, mbox):

From: Michael Heerdegen <michael_heerdegen <at> web.de>
To: Po Lu via "Bug reports for GNU Emacs, the Swiss army knife of text
 editors" <bug-gnu-emacs <at> gnu.org>
Cc: 72830 <at> debbugs.gnu.org,
 Mattias Engdegård <mattias.engdegard <at> gmail.com>,
 juri <at> linkov.net, Po Lu <luangruo <at> yahoo.com>,
 Stefan Monnier <monnier <at> iro.umontreal.ca>, Eli Zaretskii <eliz <at> gnu.org>
Subject: Re: bug#72830: Big rectangular selections are slow
Date: Thu, 29 Aug 2024 05:39:41 +0200

Po Lu via "Bug reports for GNU Emacs, the Swiss army knife of text
editors" <bug-gnu-emacs <at> gnu.org> writes:

> No well-written X program of the past 30 years does not export its
> selected text as the primary selection, and users of free desktops are
> long accustomed to its existence, with the result that Wayland desktops
> implement primary selections by a number of protocols.  This is simply
> not an option.

One data point from me: When I foll the recipe and then insert the
current primary selection into a different Emacs instance, I get a
column of 2500 "x"s inserted.  The recipe had 200,000 lines of "x"s.
That means, at least using my settings, what Emacs does in this extreme
case seems to be a waste of time because 99% of the selection is thrown
away by X or whatever.


Michael.

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