Not I-wish-it-were-a-second-faster slow, but take-a-long-lunch-and-hope-it-finishes slow. In my experiments, the tokenizer is plenty fast, but the parsing bogs down even with quite small test cases.

• 在我的实验中,记号赋予器还比较快,但解析过程就很慢了,即便用很小的测试案例也很慢。