until -package:numeric-prelude -package:base-prelude -package:hosc -package:numhask -package:faktory -is:exact -package:LambdaHack -package:yesod-paginator -package:IfElse -package:classy-prelude -package:cabal-install-solver 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)