Re: improve substr

Eric Blake wrote:
> Again, implementing this natively will be more efficient.  What do you think of 
> adding these two enhancements to substr?
>   
I think anything you want to do is okay as long as it is a perfect
superset of the existing behavior. m4 goes back to the mid-1970's
and we shouldn't break existing code. Especially not mine! :)

-- 
Jack J. Woehr            # Fate lessons of the past and present
http://www.well.com/~jax # were now in session.
http://www.softwoehr.com #  - Steven Wright, _The Beach_