[masklinn]

> Consider you have to split a string with 20 flags in sequence at a given offset. That's 40 codepoints with no readily discernible boundaries.

So consider that you have [a really bad idea], it’s not convenient?

You do realise essentially the same issue occurs if you have a stack of diacritics right?

[kevin_thibedeau]

No it doesn't. You aren't forced to scan backwards.