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$ perl -MDevel::Peek -MEncode=_utf8_on,_utf8_off,encode -e' _utf8_on( $x = "\342\231\240" ); ... PV = 0x81623f0 "\342\231\240"\0 PV = 0x81920e8 "\342\231\240"\0 PV = 0x81ff040 "\342\231\240"\0