look ahead. It's in the e-docs as well.
If at the beginning of a regular _expression_, it specifies to use negative
lookahead. Negative is just like positive lookahead, as specified by
(?=...), except that it tests for the absence of a match.
Lookahead parentheses do not capture text, so backreference numbering will
skip over these groups. For more information on backreferencing, see "Using
backreferences".
> > I love CFMX's positive and negative look aheads.
>
> As far as I remember CF MX doesn't support negative look aheads (they are
> unsupported in ORO). Am I wrong?
>
> That's one of the reasons why I wrote a wrapper for Java 1.4 RegExp API:
>
> http://www.cfczone.org/cfcs/downloads/tmt_java_regexp.zip
>
> Massimo
>
>
>
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