[tpm] looking for a regex that returns true on no match

Fulko Hew fulko.hew at gmail.com
Thu Mar 12 07:04:12 PDT 2009

Alex asked:

> Couldn't you just use the ~! on the regex instead of ~=?

Nope, see below.

On Thu, Mar 12, 2009 at 9:53 AM, Dave Doyle <dave.s.doyle at gmail.com> wrote

> Is this because the regexes are being fed in from an external source?
Well the data is a given set, and the regex pattern is what I'm trying to

> Do you have control of that source?


Basically there is a simple regex engine somewhere else that says

if (/$regex/) {print "match"; } else { print "no match"; }

and I need a regex pattern that is the 'NOT the given string' pattern.

So for the given the data set: 'bad', 'soso', 'maybe', and 'good'
I need to be able to say... 'return true if its anything but "good"'.
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