source $drc_test_source
report_netlist $drc_test_target

deep

l1 = input(1, 0)
l2 = input(2, 0)
l3 = input(3, 0)
l4 = input(4, 0)
l5 = input(5, 0)

connect(l1, l2)
connect(l2, l3)
connect(l3, l4)
connect(l4, l5)

l1.output(1, 0)
l2.output(2, 0)
l3.output(3, 0)
l4.output(4, 0)
l5.output(5, 0)

netlist

sec = { "l2" => l2, "l3" => l3, "l4" => l4, "l5" => l5 }

script = <<"END"
  skip;
  var ar=area(l5)/area;
  db.add_log_entry(LogEntryData.new(Severity.Info, net, 'AR='+to_s(ar)))
END

evaluate_nets(l1, sec, script, { "n" => "NET1" })

netlist