bug#24902: Antw: [EXT] Re: bug#24902: 25.1; C-x = for Unicode

[Eli Zaretskii]

> From: Mattias Engdegård <mattiase@acm.org>
> Date: Wed, 26 Jan 2022 17:53:00 +0100
> Cc: Robert Pluim <rpluim@gmail.com>, larsi@gnus.org, 24902@debbugs.gnu.org
> 
> 26 jan. 2022 kl. 15.09 skrev Ulrich Windl <Ulrich.Windl@rz.uni-regensburg.de>:
> 
> > 1) When you display the column, shouldn't you display the line, too?
> 
> It's probably because Emacs traditionally displays the line but not the 
> column number in the mode line. The reason for that, in turn, is that 
> updating the column number for each typed character makes Emacs less usable 
> over a slow serial line (like 1200 bit/s).

It is also because displaying the column requires to redraw the mode
line on every move of the point, which is expensive and slows down
redisplay.

> These outdated assumptions should be clearly be reconsidered

They are not necessarily outdated.