| changeset 471 | e5df48ff7033 |
| parent 93 | 4794759139ea |
| 469:226f294987f2 | 471:e5df48ff7033 |
|---|---|
1 // A parser and evaluator for the WHILE language |
1 // A parser and evaluator for the WHILE language |
2 // |
2 // |
3 import matcher._ |
3 |
4 import parser._ |
4 |
5 |
|
5 |
6 |
6 |
7 |
7 // some regular expressions |
8 // some regular expressions |
8 val SYM = RANGE("ABCDEFGHIJKLMNOPQRSTUVXYZabcdefghijklmnopqrstuvwxyz_") |
9 val SYM = RANGE("ABCDEFGHIJKLMNOPQRSTUVXYZabcdefghijklmnopqrstuvwxyz_") |
9 val DIGIT = RANGE("0123456789") |
10 val DIGIT = RANGE("0123456789") |