Re:Ask HN: Why can’t I use emojis on HN?
by usrn on Monday May 09, 2022 @11:18PM
(#31323044)
I'm pretty sure they're writing s-expressions to disk but maybe things have evolved since I last looked.
[ Parent
| on HN ]
There are good security reasons, among others to filter some unicode;
Homoglyph : https://en.m.wikipedia.org/wiki/Homoglyph
UniCode 'Confusables' Visual-Spoofing : https://unicode.org/reports/tr36/#visual_spoofing
The Invisible JavaScript Backdoor : https://certitude.consulting/blog/en/invisible-backdoor/
>There are many other characters that look similar to the ones used in code which may be used for such proposes,
(e.g. “／”, “−”, “＋”, “⩵”, “”, “⫽”, “꓿”, “∗”). Unicode calls these characters “confusables”.<*