This is the revision history for lookarounds in <freenode.net:#regexen>

factoid_idsubjectcopulapredicateauthornamespace
12721 lookarounds is <fact lookaround>
http://www.regular-expressions.info/lookaround.html
digitok <freenode.net:#regex>
12720 lookarounds is <fact lookaround>
Not Available
digitok <freenode.net:#regex>