Re: [Haskell-cafe] Syntax for lambda case proposal could be "\of"

On Wed, 2007-08-15 at 10:50 -0700, Stefan O'Rear wrote:

OTOH, your proposal provides (IMO) much more natural syntax for multi-pattern anonymous functions, especially if we stipulate that unlike a case (but like a lambda) you can have multiple arguments; then you could write stuff like:

sumTo0 = foldr (\of 0 k -> 0 n k -> n + k) 0

Anyone else like this?

Why not just: sumTo0 = foldr (\0 k -> 0 n k -> n + k) 0 I find using "case" or "of" for multiple arg lambda pattern matches odd since "case foo of" is only used for single arg pattern matches. I suppose the equivalent explicit layout syntax would be: sumTo0 = foldr (\{ 0 k -> 0; n k -> n + k }) 0 Duncan