#include #include #include #define RET(n) return n int scan(const char *s, int l) { const char *p = s; const char *q; #define YYCTYPE char #define YYCURSOR p #define YYLIMIT (s+l) #define YYMARKER q #define YYFILL(n) /*!re2c any = [\000-\377]; 'a'{0,}"\n" {RET(1);} any {RET(0);} */ } void _do_scan(int exp, const char * str, int len) { int ret = scan(str, len); printf("%d %s %d\n", exp, exp == ret ? "==" : "!=", ret); } #define do_scan(exp, str) _do_scan(exp, str, sizeof(str) - 1) main() { do_scan(1, "a\n"); do_scan(1, "aa\n"); do_scan(1, "aaa\n"); do_scan(1, "aaaa\n"); do_scan(1, "\n"); do_scan(0, "q"); do_scan(0, "a"); }