until -package:numeric-prelude -package:util -package:xmonad-contrib -package:LambdaHack -package:ghc -package:snap-core is:exact -package:basic-prelude -package:linear-base -package:Cabal -package:Cabal-syntax package:utility-ht

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