Proposal for BiDi in terminal emulators

[Eli Zaretskii via Unicode]

> Date: Sat, 2 Feb 2019 21:49:40 +0000
> From: Richard Wordingham via Unicode <unicode at unicode.org>
> 
> Eli will probably tell me I'm behind the times, but there are a few
> places where a Gnome-terminal is better than an Emacs GUI window.  One
> is colour highlighting of text found by grep.

??? The Emacs 'grep' command also highlights the matches, by
interpreting the escape sequences emitted by Grep the program it
invokes.

> Another is that screen overwriting doesn't work in an Emacs window.

What is "screen overwriting" in this context?