\w is equivalent to [\p{L}\p{Mn}\p{Nd}\p{Pc}] in .NET instead of [\p{Alpha}\p{M}\p{Nd}\p{Pc}\p{Join_Control}]:
It incorrectly uses GC=Letter instead of Alphabetic=Yes; the latter includes more code points!
It doesn't match all of GC=Mark, only GC=Nonspacing_Mark
It doesn't match Join_Control=Yes
AFAIK there's nothing we can do other than emitting a warning: \p{Alpha} doesn't work in .NET, so we can't polyfill it. But a warning adds noise and doesn't help much when there isn't a straightforward fix.
\wis equivalent to[\p{L}\p{Mn}\p{Nd}\p{Pc}]in .NET instead of[\p{Alpha}\p{M}\p{Nd}\p{Pc}\p{Join_Control}]:GC=Letterinstead ofAlphabetic=Yes; the latter includes more code points!GC=Mark, onlyGC=Nonspacing_MarkJoin_Control=YesAFAIK there's nothing we can do other than emitting a warning:
\p{Alpha}doesn't work in .NET, so we can't polyfill it. But a warning adds noise and doesn't help much when there isn't a straightforward fix.