> -----Original Message-----
> From: David B Funk [mailto:[EMAIL PROTECTED]
> Sent: Friday, July 11, 2003 12:38 PM
> To: Chris Santerre
> Cc: Spamassassin-Talk (E-mail)
> Subject: RE: [SAtalk] tricky spam
> 
> 
> On Fri, 11 Jul 2003, Chris Santerre wrote:
> >
> > Usually write it like, /(f|ph)ot0|(f|ph)0to/i
> >
> 
> Minor perl technicality, use the 'non rembering' version of the
> grouping operator, (?: ... ). As you probably aren't going to
> interpolate the match in a backreference, don't waste the CPU and
> memory to 'remember' it.
> 
> Thus write your pattern as:
>       /(?:f|ph)ot0|(?:f|ph)0to/i
> 
> -- 
> Dave Funk                                  University of Iowa

minor? MINOR? Hell no! You know how many rules I have DON'T have this? :)
You may have saved me a TON of memory and time. I had yet to figure out what
the preceding ?: meant. Thank you VERY much! Big help! I'm still learning
more about perl. 

Do you have an example of when you would interpolate the match in a
backreference?

Thanks again!!
Chris


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