Re: [Haskell-cafe] Reversing a string of words: C# v Perl V Ruby vHaskell

10 Dec 2006

      On 10/12/2006, at 11:51 PM, Neil Mitchell wrote:
...
Hi
...
What about just:
reverseWords = concat . intersperse " " . reverse . words
Dr Haskell says:
[http://www-users.cs.york.ac.uk/~ndm/projects/drhaskell.php]
"Use unwords instead of concat (intersperse space ...)"
Which gives us:
reverseWords = unwords . reverse . words
Lovely stuff.

Just in case you prefer reading left-to-right, another variation is:

    import Control.Arrow

    reverseWords = words >>> reverse >>> unwords

Re: [Haskell-cafe] Reversing a string of words: C# v Perl V Ruby vHaskell

Bernie Pope