until -package:numeric-prelude -package:yesod-paginator -package:prelude-compat -package:numhask -package:netwire -package:rebase -package:distribution-opensuse -package:singletons-base package:utility-ht is:exact

until :: Monad m => (a -> Bool) -> m a -> m a
utility-ht Control.Monad.HT
repeat action until result fulfills condition