until -package:numeric-prelude -package:language-bash -package:distribution-opensuse -package:LambdaHack -package:yesod-paginator -package:llvm-hs-pure -package:mixed-types-num -package:hledger-web -is:exact is:exact -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