词法分析程序设计

1、给出各单词符号的类别编码。

2、词法分析程序应能发现输入串中的错误。

3、词法分析作为单独一遍编写，词法分析结果为二元式序列组成的中间文件。

4、设计两个测试用例（尽可能完备），并给出测试结果

-lexical analysis procedures designed a given word symbols of the type of coding. 2, lexical analysis procedure should be able to detect the input string of mistakes. 3, lexical analysis prepared as a separate again, lexical analysis results for the dual-sequence consisting of intermediate document. 4, the two Test Case Design (as complete as possible), and gives test results