这是JavaCC 他是词法语法分析器，他是目前唯一的支持ll(1)的语法分析器，这是源码 相当好的-This is the JavaCC parser lexical he is, he is the only support for the ll (1) syntax analyzer, which is a very good source

语法分析器，编译原理，LL（1）分析法，预测分析法-Parser, compiler theory, LL (1) analysis, forecast analysis