L</(*ACCEPT) (*ACCEPT:arg)> and not have it bypass the script run
checking.
-This feature is experimental, and the exact syntax and details of
-operation are subject to change; using it yields a warning in the
-C<experimental::script_run> category.
-
The C<Script_Extensions> property as modified by UTS 39
(L<https://unicode.org/reports/tr39/>) is used as the basis for this
feature.