...
public text v1 · immutable/away {
set %time $ctime
set %reason $1-
msg $chan 2I am now away because I'm7 %reason $+ 2I left at 7 $time EST
/nick Def|Out
}
/back {
msg $chan 2I am back from7 %reason 2I was gone for7 $duration($calc($ctime - %time))
unset %reason
/nick Definition
}