}?)b/0     a\x{0000}xyb      a\x{0000}\x{0000}yb      a\x{0000}\x{0000}\x{0000}b      axxxxbcdefghijb      a\x{0000}\x{0000}\x{0000}\x{0000}b      axbxxbcdefghijb      axxxxxbcdefghijb      *** Failers     a\x{0000}b      axxxxxxbcdefghijb   /