source($drc_test_source)
in_cell     = source.select("-", "+S*")
not_in_cell = source.select("-SPECIAL")
in_cell_local = source.select("-*", "+SPECIAL")
not_in_cell_local = source.select("+*", "-SPECIAL")

target($drc_test_target)

deep 

input(2,0).output(2, 0)
input(3,0).output(3, 0)

flat

in_cell.input(2, 0).output(102, 0)
in_cell.input(3, 0).output(103, 0)

not_in_cell.input(2, 0).output(202, 0)
not_in_cell.input(3, 0).output(203, 0)

in_cell_local.input(2, 0).output(302, 0)
in_cell_local.input(3, 0).output(303, 0)

not_in_cell_local.input(2, 0).output(402, 0)
not_in_cell_local.input(3, 0).output(403, 0)

deep 

in_cell.input(2, 0).output(502, 0)
in_cell.input(3, 0).output(503, 0)

not_in_cell.input(2, 0).output(602, 0)
not_in_cell.input(3, 0).output(603, 0)

in_cell_local.input(2, 0).output(702, 0)
in_cell_local.input(3, 0).output(703, 0)

not_in_cell_local.input(2, 0).output(802, 0)
not_in_cell_local.input(3, 0).output(803, 0)