Unsolved QStringRef and QRegularExpression
We can splitRef() a QString with regexes, and QRegularExpression::globalMatch() has an overload for QStringRef.
What obstacles are there so QStringRef doesn't support QRegularExpression, e.g. (mainly) in function split()?
I think simply because until now nobody implemented it.
But maybe @SGaist has some time for it? :)
I would start by checking if there's anything related on the bug report system and if not, then open a feature request for it.