(form "testswa" (size 40  6)
  (heading "PROCESS A RANGE OF SWA TESTS")
  (label (position  2  2) (text "Test range"))
  (field "tests" (position  12  2) (display_length 20) (input allowed)
    (format range) (null disallowed) (max_length 32))
  (default_buttons)
)