Someone

on $*:Text:/^[.!@]except:#:{
 if ($nick isop $chan || $nick ishop $chan ) {
 .mode $chan +e $2 
 }
}

on $*:Text:/^[.!@]deexcept:#:{
 if ($nick isop $chan || $nick ishop $chan) {
 .mode $chan -e $2
 }
}