ternary parsing fail

[Simn]

This fails to parse for some reason:

class Main {
    static public function main() {
        var s = "class C { static function main() { a?8:0; }}";
        var p = new haxeparser.HaxeParser(byte.ByteData.ofString(s), "test");
        trace(p.parse());
    }
}

Works if there's a space in front of the :.