ON *:INVITE:#:{
  join $chan
  set %nick. [ $+ [ $chan ] ] $nick
}
ON *:JOIN:#:{
  if (%nick. [ $+ [ $chan ] ] isop $chan || %nick. [ $+ [ $chan ] ] ishop $chan) {
    msg $chan Thank you for inviting me, %nick. [ $+ [ $chan ] ] $+ .
  }
  if (%nick. [ $+ [ $chan ] ] isreg $chan || %nick. [ $+ [ $chan ] ] isvoice $chan) {
    msg $chan %nick. [ $+ [ $chan ] ] invited me here but he is not an op or a halfop.
    part $chan
  }
  unset %nick. [ $+ [ $chan ] ]
}