as far as i know there are no systems based on UTF-16 that disallow bare surrogates

[fanf@mendeddrum.org]

as far as i know there are no systems based on UTF-16 that disallow bare surrogates

UTF-16 doesn’t exist, it’s always WTF-16

[ryanc@infosec.exchange]

@fanf Hmm.

JavaScript allows unpaired surrogates.
Java allows them, at least in some cases.
Windows APIs allow them.
USB probably doesn't care.

Where else is "UTF-16" even used?

UEFI?
.Net?
What about MySQL?

[rallias@hax.social]

@ryanc @fanf iirc, MySQL recommends using utf8, but because of some historic bullshit there's a couple built in variants, of which utf8mb4 is the correct option if you want compliant utf8

[ryanc@infosec.exchange]

@rallias @fanf Yeah, utf8 is an alias for utf8mb3 which doesn't represent codepoints over 65535.