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$ perl -MO=Deparse -e " s\\\g " s///g; -e syntax OK ... $ perl -MO=Deparse -e " s«««g " s///g; -e syntax OK
perl -MO=Deparse -e " s {}//g " perl -MO=Deparse -e " s {}\\g " ... perl -MO=Deparse -e " s {}[]g " perl -MO=Deparse -e " s {}<>g " perl -MO=Deparse -e " s<><>g "