re2c: warning: line 18: control flow in condition 'r1' is undefined for strings that match '[\x0-\x30\x33-\x60\x63-\xFF]', use default rule '*' [-Wundefined-control-flow]
re2c: warning: line 18: control flow in condition 'r2' is undefined for strings that match '[\x0-\x30\x33-\x61\x63-\xFF]', use default rule '*' [-Wundefined-control-flow]
re2c: error: line 20: cannot have a second 'rules:re2c' block