(1)构造文法G的LR(0)项目 (2)构造文法G的LR(0)项目集规范族及识别活前缀的DFA (3)证明文法G不是LR(0)文法而是SLR(1)文法，并构造SLR(1)分析表 (4)设计LR语法分析程序，且能输出分析过程 (5)列举两个例子测试语法分析程序（识别失败一例，识别成功一例，后者推导步骤不得少于10步） -(1) construct grammar G of the LR (0) item (2) construct grammar G of the LR (0)

这是关于javacc的学习心得，以及用java写的词法分析和语法分析。 -This is about javacc learning experience, as well as lexical analysis and parsing written in java.

tiger语言编译器，实现了词法分析、语法分析和语义分析。工具：Java 开发环境: Eclipse、词法分析器: JFlex、语法分析器: CUP-tiger language compiler, lexical analysis, parsing and semantic analysis. Tools: Java development environment: Eclipse, lexical analyzer: JFlex, parser: CUP