until -package:numeric-prelude -package:yesod-paginator -package:prelude-compat -package:numhask -package:conferer -package:llvm-hs-pure -package:clash-prelude -package:snap-core -package:Cabal -package:LambdaHack package:utility-ht
repeat action until result fulfills condition
Take all elements until one matches. The matching element is returned,
too. This is the key difference to
takeWhile (not . p). It
holds:
forAllPredicates $ \p xs -> takeUntil p xs == fst (breakAfter p xs)