The negative look-behind is what the OP was trying to emulate with the {0}. This is definitely the way to go, using negative look-behind and negative look-aheads in the regex! This is a great solution, IMHO...

Just a query: in your regexes, why did you use the m modifier?

In reply to Re^2: Match zero times in regex by ricDeez
in thread Match zero times in regex by SomeNetworkGuy

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