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Answers and rating deltas for

what does this expression means in Regular Expression

Author Votes Δ
Niet the Dark Absol 4 +0.96
codebox 2 +0.72
Vinay Pratap Singh 1 -0.14
itsols 1 +0.13
Chetan Gawai 1 -0.54
Josh Beam 0 -1.48
Last visited: Sep 14, 2014, 5:07:29 AM