Re: [Haskell-cafe] Defining new operators

On Wed, Aug 08, 2007 at 03:14:43PM -0300, rodrigo.bonifacio wrote:

Hello,

I have created the following function:

dist :: String -> [[String]] -> [[String]] dist x y = [ x:e | e<-y ]

eg.:

dist "1M" [[], ["2M"], ["2M, 3M"]] = [["1M"],["1M","2M"],["1M","2M, 3M"]]

How can I create an operator that perform the same function as dist? I want to write something like:

"1M" ++ [[], ["2M"], ["2M", "3M"]]

(+++) :: String -> [[String]] -> [[String]] x +++ y = [ x:e | e<-y ] "1M" +++ [[], ["2M"], ["2M", "3M"]] Stefan