1// re2c $INPUT -o $OUTPUT 2/*!re2c 3 "print" {return PRINT;} 4 [a-z]+ {return ID;} 5 [0-9]+ {return DEC;} 6 "0x" [0-9a-f]+ {return HEX;} 7 [\000-\377] {return ERR;} 8*/ 9