With the tokenizer, it is easy to decode the processing instructions 有了tokenizer,就很容易譯碼處理指令。
A good lexer example can help a lot with learning how to write a tokenizer 一個(gè)好的lexer例子會(huì)非常有助于學(xué)習(xí)如何編寫斷詞器(tokenizer)。
We use flex to get a tokenizer . and then, the realization of error tolerance function and later modification problem is simplified 詞法分析采用flex工具實(shí)現(xiàn),簡(jiǎn)單化詞法分析的容錯(cuò)功能的實(shí)現(xiàn)以及之后的程序修改問題。
Quantifiers can be used within the regular expressions of the spark tokenizer, and can be simulated by recursion in parse expression grammars 計(jì)量符可以在spark記號(hào)賦予器(tokenizer)的正則表達(dá)式中使用,并可以用解析表達(dá)式語法中的遞歸來進(jìn)行模擬。
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 在我的實(shí)驗(yàn)中,記號(hào)賦予器還比較快,但解析過程就很慢了,即便用很小的測(cè)試案例也很慢。