Re: [Haskell-cafe] Are there standard idioms for lazy, pure error handling?

wren ng thornton wrote:

concat1 :: T a b -> (b -> T a b) -> T a b

This could just as easily be concat :: T a b -> (b -> T a c) -> T a c right? It's a little weird to call this concatenation, but I bet it could come in handy. -- Jason McCarty <jmccarty@sent.com>