until -package:numeric-prelude -package:streaming -package:util -package:scalpel-core -package:free is:exact -package:xmonad-contrib -package:Cabal -package:distribution-opensuse -package:Cabal-syntax -package:numhask package:utility-ht

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