This reply is off topic but FYI:

For us "old-timers" this was better known as CTLASA. Where CTL is for ConTroL and ASA the American Standards Association (now known as ANSI -- American National Standards Institute). CTLASA may turn up additional info if you should need to research the topic further.

@a=split??,'just lose the ego and get involved!';
for(split??,'afqtw{|~'){print $a[ord($_)-97]}