>For the first part, tchrist posted a nice list of non-overridable
>builtins; running my eye down it, it looks like the gross offenders
>here are:
> glob, print, printf
>I don't know whether this is purely an implementation issue (and so
>lies solely in the domain of perl6-internals) or whether any
>programmer-visible changes may be necessary to allow this
>(justifying posting to perl6-language).
glob is most certainly overridable--now, at least. Perhaps it
wasn't when I first made the list.
The things that take indirect objects are not--we've no context
coercion template for them. Same with split and its regex arg.
--tom