until -package:numeric-prelude -package:streaming -package:yesod-paginator -package:numhask -package:monad-loops -package:distribution-opensuse -package:faktory -package:probability package:utility-ht -is:exact
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)