non-utf8-decoding regex (for speed)?

[Timothee Cour via Digitalmars-d]

Is there a way to avoid decoding (as utf8) when calling regex' apis?
or a plan to do so?

use case: speed (no decoding) and avoiding throwing on invalid utf8 sequences

ideally this should allow:

---
auto s = cast(ubyte[])  "abcd"; //potentially not valid utf8 sequence
auto r = cast(ubyte[])  `^\d`;
auto m=match(s, r.regex); // right now: regex cannot deduce function
from argument types !()(ubyte[])
---