| changeset 941 | 66adcae6c762 |
| parent 929 | 9541e073f2ed |
| child 961 | c0600f8b6427 |
| 940:46eee459a999 | 941:66adcae6c762 |
|---|---|
54 nullable(ders(s.toList, r)) |
54 nullable(ders(s.toList, r)) |
55 |
55 |
56 |
56 |
57 // some examples from the homework |
57 // some examples from the homework |
58 |
58 |
59 val r = SEQ(CHAR('b'), CHAR('c')) |
59 val r = SEQ(CHAR('a'), CHAR('c')) |
60 matcher(r, "ac") |
60 matcher(r, "ac") |
61 |
61 |
62 val r1 = STAR(ALT(SEQ(CHAR('a'), CHAR('b')), CHAR('b'))) |
62 val r1 = STAR(ALT(SEQ(CHAR('a'), CHAR('b')), CHAR('b'))) |
63 der('a', r) |
63 der('a', r) |
64 der('b', r) |
64 der('b', r) |