On Dec 7, 2007 6:04 PM, Chris Eidhof <chris@eidhof.nl> wrote:

On 7 dec 2007, at 23:51, Ryan Bloor wrote:
> i am using hugs and the isDigit and anything 'is' doesn't work...
> they must have forgot to add them in! Does GHC work with them.

Perhaps you need to import Data.Char?

-Brent