until -package:numeric-prelude -package:streaming -package:util -package:scalpel-core -package:numhask is:exact -package:distribution-opensuse -package:xmonad-contrib -package:yesod-paginator -package:ghc-lib-parser -package:LambdaHack package:utility-ht

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