Make some improvements to Regex usage.
Make some improvements to Regex usage.

pvtodorov/indra,sorgerlab/belpy,johnbachman/belpy,bgyori/indra,pvtodorov/indra,johnbachman/belpy,sorgerlab/belpy,pvtodorov/indra,johnbachman/belpy,sorgerlab/indra,sorgerlab/indra,bgyori/indra,johnbachman/indra,johnbachman/indra,pvtodorov/indra,sorgerlab/indra,bgyori/indra,johnbachman/indra,sorgerlab/belpy