Re: Can watermarking Unicode text using invisible differences sneak through Emacs, or can Emacs detect it?

[Eli Zaretskii]

> From: Tim Cross <theophilusx@gmail.com>
> Date: Thu, 20 Jan 2022 17:35:23 +1100
> 
> It is a big challenge to find out a way to alert users to this possible
> unwanted 'tagging', but at the same time, allow legitimate use. For
> exmaple, in org-mode, it can sometimes be difficult to combine different
> markup and other syntax - often it is because of a corner case which is
> difficult to address with font-locking regexp. Adding a zero-width space
> is sometimes sufficient to work around the ambiguity in tghe regexp.

A single zero-width character should never be flagged, at least not by
default, because its uses are mostly legitimate and important.