s/$/<++,<<<<<<<<,<<<<<<<<<-,--,<-,<<,<+,++ / : s/-/+++++++++/ s/\(.\)+\|\(.\)</\1(abcdefghija09876543210)\2/ s/\(.\)(.*\(.\)\1.*)/\2/ s/\(.\w\),/\1 \1/ t s/[ij]. \|.[90] //g s/ $//
Note that non-ascii characters in the above source code will be escaped (such as \x9f).