or download this
op/regexp...........FAILED tests 1, 5-10, 13-14, 18-21, 23-25, 27-28,
+33, 37-39,
42, 44-47, 51-53, 55, 58-61, 68-70, 75, 78, 87, 90, 97, 102-105, 108-
+111, 113,
124-125, 127-132, 134-141, 143-144, 152-153, 155-156, 158-160, 162-165
+, 175-176,
...
458, 463-464, 468-470, 4
+72, 479-
480, 485, 487-489, 491
op/study.t 24 7 29.17% 3, 11-12, 14, 16-17, 22