until -package:numeric-prelude -package:yesod-paginator -package:prelude-compat -package:numhask -package:elerea -package:basic-prelude -package:util -package:xmonad-contrib -package:streaming -package:scalpel-core 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