Larry (>>), Dan (>):
>> The lack of base 4 numbers in Real Life seems to me to justify the
>> convention. Do you have a use case?
> Real Life on Earth is base-4 coded :-p
> hey, do we have tr/// equivalent already?
In S05? Yes, since the get-go.
In Rakudo? You do know that it's freely available, right? :)
(Sometimes the lack on grounding on this list in actual, working
implementations has me flummoxed.)
$ perl6 -e 'say "GATTACA".trans("TCAG" => "0123")'
The tr form doesn't work yet, though.