sedbf.min.sed

#!/bin/sed -Ef
s/[^][+,.<>!0-9-]//g
s/.*/% &#:000;/
:a
s/%(.)/\1%/
/%\+/{/:255/{s/:255/:000/
ba}
s/:..[^9]/&_/
s/(:.)99/\1_00/
s/(:..)9/\1_0/
s/8_/9/
s/7_/8/
s/6_/7/
s/5_/6/
s/4_/5/
s/3_/4/
s/2_/3/
s/1_/2/
s/0_/1/}
/%-/{/:000/{s/:000/:255/
ba}
s/:..[^0]/&_/
s/(:.)00/\1_99/
s/(:..)0/\1_9/
s/1_/0/
s/2_/1/
s/3_/2/
s/4_/3/
s/5_/4/
s/6_/5/
s/7_/6/
s/8_/7/
s/9_/8/}
/%>/{s/:(...);/:\1000;/
s/:(...)/\1:/}
/%</{s/#:/#000:/
s/(...):/:\1/}
/%,/{/![0-9]{3}/!s/:.../:000/
s/!([0-9]{3})(.*:).../!\2\1/}
/%\./s/.*:(...).*/&\1 /
/%\[/{/:000/!ba
:b
/%]/s/a//
/%\[/s/$/a/
/a$/s/%(.)/\1%/
tb
ba}
/%]/{:c
/%\[/s/a//
/%]/s/$/a/
/a$/s/(.)%/%\1/
tc
s/(.)%/%\1/}
ta
s/.*;//