tests/lastpipe.right

   1 after 1: foo = a b c
   2 after 2: tot = 6
   3 after: 7
   4 last = c
   5 1 -- 142 1
   6 0 -- 0 1 0
   7 1 -- 0 0 1
   8 1 -- 0 0 1
   9 1 -- 0 1 0
  10 lastpipe1.sub returns 14
  11 A1
  12 A2
  13 B1
  14 B2
  15 HI
  16 A1
  17 A2
  18 B1
  19 B2
  20 HI -- 42 -- 0 42