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Direktori : /usr/share/doc/re2c/examples/c/eof/ |
Current File : //usr/share/doc/re2c/examples/c/eof/01_sentinel.re |
// re2c $INPUT -o $OUTPUT #include <assert.h> // Expect a null-terminated string. static int lex(const char *YYCURSOR) { int count = 0; for (;;) { /*!re2c re2c:define:YYCTYPE = char; re2c:yyfill:enable = 0; * { return -1; } [\x00] { return count; } [a-z]+ { ++count; continue; } [ ]+ { continue; } */ } } int main() { assert(lex("") == 0); assert(lex("one two three") == 3); assert(lex("f0ur") == -1); return 0; }