in reply to Perl5.10 and BBEdit: Syntax Coloring and Syntax Checking, How?
ikegami is on the right track above. Open up the BBEdit application bundle (right-click the icon in Finder and select "Show Package Contents") then navigate to Contents/Resources. You'll find a file called "Perl Keywords.txt" there. Make a backup of it if you like, then open it up and add keywords you'd like highlighted. I added the following for Perl 5.10.1:
say UNITCHECK state given when default
Not sure where operators like // are, but this should help.
In Section Seekers of Perl Wisdom