On Saturday 04 April 2009 12:12:52 David Teller wrote:
> The bad thing is that, whenever you have to return text in an otherwise
> functional program, you need to enter "mutable array of bytes" land. You
> can't just assume that the user isn't going to modify that string,
> because, they can, possibly by accident, and any invariant relying on
> the fact that your strings can't change are going to be broken. In
> particular, any StringSet, any StringMap, etc.

Sure but that is no different to arrays and an ArraySet, ArrayMap etc.

-- 
Dr Jon Harrop, Flying Frog Consultancy Ltd.
http://www.ffconsultancy.com/?e