On Thu, Dec 20, 2001 at 07:00:30PM +0100, Philip Newton wrote: > On Thu, 13 Dec 2001 10:50:11 -0500, [EMAIL PROTECTED] > (Ronald J Kimball) wrote: > > > (y/a-zA-Z// > 2) & (y/0-9// > 1) > > > > Each numeric comparison will return either 1 or 0. > > In my experience, 1 or "", rather than 1 or 0. Or is FALSE (PL_NO?) a > special value which looks like 0 to operators that care, such as > bitwise-and?
Yes, PL_NO has a string value of '' and a numeric value of 0, so that you can treat it as a number without getting a warning. Ronald
