⍝ ZZ20_Regression
⍝ ----------------------------------

      ⍝ print line for ''
      ⍝
      )ERASE test
∇test
 '1'
 ' '
 '2'
 ''
 '3'
∇
      test
1
 
2

3


      ⍝ parse error on [ ] F B
      ⍝
      (⎕TS[4 5])[1]≥25
0

      )CHECK
OK      - no stale functions
OK      - no stale values
OK      - no stale indices
OK      - no duplicate parents


