designed to deepen the syntax analysis procedures and the task of the working pr...
2010-11-12
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设计目的 加深对语法分析程序的任务及其工作原理的理解;掌握语法分析程序的实现方法;掌握简单语言的状态转换图表示形式极其识别程序的构造。 设计任务 编写对简单语言进行语法分析的词法分析程序。并对输入串for I=1to 20 do {x:=x+2 y:=y*(2+c) }} 进行语法分析,要求如下: 1。识别其中的关键字,标识符,常数,运算符和界符。2,对其中的数字注明其值和类型 3。将识别的结果填入表中并输出。-designed to deepen the syntax analysis procedures and the task of the working principle of understanding; Master syntax analysis of the implementation process; In simple language and the state transition map form extremely Construction of the identification procedures. Design tasks to prepare simple language syntax analysis of lexical analysis procedure. Also input strings for I = 1 to 20 do (x : y = x 2 : = y* (2 c))) syntax analysis, as follows : 1. The identification of keywords, identifiers, constant, Operators and community website. Two of the figures which indicate its value and type 3. Recognition will fill in the results table and outputs.
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