On 8/1/05, daz <dooby / d10.karoo.co.uk> wrote:
> 
> You can prevent the grouped expression from creating a
> back-reference by using the ?: extension ...

Ah.  That's one of those things which didn't sink in when I
first read about it, since I didn't need it at the time.  I wish I
had paid better attention to it!  Thanks.

-- 
Garance Alistair Drosehn     =             drosihn / gmail.com
Senior Systems Programmer               or   gad / FreeBSD.org
Rensselaer Polytechnic Institute;             Troy, NY;  USA