Whenever the predicted symbol is unique, there is no need to encode it as the decoder generates the same model from the DTD and thus can generate the unique expected symbol.
A semantic model is created by feeding a syntax tree back into the compilation so that it will be annotated with symbol data. The semantic model can then be queried for information such as.
他们可以通过把语法树回馈给编译集来创建语义模型,从而用符号数据对其进行注解。
3
We used this model to create an AJAX-style client that updates the stock price as you type in the ticker symbol.