Regex that matches anything *but* the described pattern?

Hi All,

i currently have a spam filter regex that matches a certain
classes of
addresses.  For example, I have:

support..*mydomain.com

Which matches anything that starts with "support."
and ends in
"mydomain.com"

However, I would like to also have a regex which will match
anything
that does *not* begin with "support." and *does*
end in "mydomain.com"

I haven't been able to figure this one out.  Can anybody
help me out?

The only negation operator I was able to find related to
character
classes (^), not enter strings, which is what I want.

  -Josh


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Joshua Beall wrote:
> Hi All,
>
> i currently have a spam filter regex that matches a
certain classes of
> addresses.  For example, I have:
>
> support..*mydomain.com
>
> Which matches anything that starts with
"support." and ends in
> "mydomain.com"
>
> However, I would like to also have a regex which will
match anything
> that does *not* begin with "support." and
*does* end in "mydomain.com"

Just use a negative look ahead, like:

  ^(?!support).*mydomain.com$

Xicheng


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