This is the revision history for reference in <freenode.net:#regex>

factoid_idsubjectcopulapredicateauthornamespace
15868 reference is <fact ref> digitok
15796 reference is http://www.regular-expressions.info/refflavors.html digitok
15096 reference is <fact ref>
http://www.regular-expressions.info/refflavors.html
digitok
11811 reference is <nfacts #regex ref>
Not Available
digitok