Encoder decoder by nn

BEGIN{FS=_
RS=i=7}/^e/{for(;i++<NF;i<NF&&t=$++i t)h=h$i
o=h t}/^d/{for(n=NF;i++<n;n--)o=o$i(i<n?$n:_)}$0=o

Note that non-ascii characters in the above source code will be escaped (such as \x9f).

download

return top