Path: utzoo!attcan!uunet!inpnms!logan From: logan@rockville.dg.com (James L. Logan) Newsgroups: comp.lang.perl Subject: Re: Best way to nullify an intersection Message-ID: <604@inpnms.ROCKVILLE.DG.COM> Date: 3 Jul 90 22:47:26 GMT References: <601@inpnms.ROCKVILLE.DG.COM> <15631@bfmny0.BFM.COM> Organization: Data General Telecommunications, Rockville, MD Lines: 14 In article <15631@bfmny0.BFM.COM> tneff@bfmny0.BFM.COM (Tom Neff) writes: # # @B=grep(!do {$x=$_; grep($x eq $_,@A);},@B); # Could someone explain this construct? I've only been using perl for a week now... -Jim -- James Logan UUCP: uunet!inpnms!logan Data General Telecommunications Inet: logan@rockville.dg.com 2098 Gaither Road Phone: (301) 590-3198 Rockville, MD 20850