| 1 | // re2c $INPUT -o $OUTPUT -i --case-ranges |
| 2 | #include <assert.h> |
| 3 | #include <stdio.h> |
| 4 | |
| 5 | bool lex(const char *s) { |
| 6 | const char *YYCURSOR = s; |
| 7 | /*!re2c |
| 8 | re2c:yyfill:enable = 0; |
| 9 | re2c:define:YYCTYPE = char; |
| 10 | |
| 11 | number = [1-9][0-9]*; |
| 12 | |
| 13 | number { return true; } |
| 14 | * { return false; } |
| 15 | */ |
| 16 | } |
| 17 | |
| 18 | int main(int argc, char** argv) { |
| 19 | const char *s = argv[1]; |
| 20 | bool matched = lex(s); |
| 21 | printf("%d %s\n", matched, s); |
| 22 | } |