until -package:numeric-prelude -package:base-prelude -package:hosc -package:numhask -package:streaming -package:monad-loops -package:singletons-base -package:dunai -package:scalpel package:conduit

takeExactlyUntilE :: (Monad m, IsSequence seq) => (Element seq -> Bool) -> ConduitT seq o m r -> ConduitT seq o m r
conduit Data.Conduit.Combinators
Stream in the chunked input until an element matches a predicate. Like takeExactly, this will consume the entirety of the prefix regardless of the behavior of the inner Conduit.