1、 输入串应是词法分析的输出二元式序列,即某算术表达式“实验项目一”的输出结果。输出为输入串是否为该文法定义的算术表达式的判断结果。
2、 递归下降分析程序应能发现输入串出错。
3、 设计两个测试用例(尽可能完备,正确和出错),并给出测试结果
-1, input strings should be the output of lexical analysis of binary sequence, that is, the arithmetic expression of a
构造接受语言{{}}的一台自动机,对于任意输入的一个字符串,模拟其运行过程,判断字符串是否接受。-structure acceptable language (()) of an automatic machine for the indiscriminate importation of a string, its process simulation, the judge whether to accept the string.
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词法分析器,用编译原理知识设计一个词法分析器。此程序运行并且通过。
vc运行-Lexical analyzer, using the principle of knowledge to design a compiler lexical analyzer. This program runs through. vc run
一个超级经典的词法和语法分析程序(附加源代码).从词法分析的输出过渡到语法分析-a super classic morphology and syntax analysis program (Additional source code). Lexical analysis from the output transition to the syntax analysis