until -package:numeric-prelude -package:base-prelude -package:distribution-opensuse -package:extra -package:snap-core -package:intro -package:dunai -package:conferer -package:prelude-compat -package:termonad package:rebase -is:exact
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.