until -package:numeric-prelude -package:base-prelude -package:distribution-opensuse -package:utility-ht -package:netwire -package:hedgehog -package:snap-core -package:dunai -package:free package:rebase
until p f yields the result of applying
f
until
p holds.
Keep running an effectful computation until it returns a
Right value, collecting the Left's using a supplied
Monoid instance.