预测分析法实现的语法分析器

词法分析，功能齐全，简单实用，绝对的好程序，是学好编译原理的好帮手！-Lexical Analysis

用C写的简易C编译器-C write simple C compiler

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-Lexical analysis program design one, given the various types of code word symbols. 2, lexical analysis procedure should be able to detect errors in the input strings. 3, again as a separate lexical analysis prepared for morphological analysis of binary sequence composed of

一个语法分析，能实现SLR语法分析，是一个好的语法分析器-A parsing,which can realize SLR parsing,is a good parsing analyzer.

ll(1)语义分析器-ll (1) Semantic Analyzer

目的：通过编写简单的YACC程序熟悉YACC词法分析工具的基本用法，及词法分析器的设计思路。编写包括赋值语句、if语句以及含有加合乘运算的表达式等语法结构的pascal子集语言的语法分析器。 功能：程序由两个模块LEX和YACC构成，YACC使用LEX分析后的正规单词输出流-Objective : to prepare a simple procedure with YACC YACC lexical analysis of the basic tools to use, and the lexical analyzer designs. Preparation including assignment if statements containing Addition and multiplication of expressions such as grammatical structure of the pascal subset of the language syntax analyzer. Function : procedures by the two modules constitute LEX and YACC, YACC LEX analysis using the formal word output streams

用户输入一个文法，然后再输入，要被分析的字符串，自动进行语法分析，把每一不的分析过程都一一打印出来。直到分析成功或失败。-a user input grammar, and then imported to the string were analyzed automatically syntax analysis, the analysis of each process does not have to print out on January 1. Until the analysis of success or failure.

这是一个用C++实现的语法制导翻译程序，当输入一个表达式时可以将其转化为相应的四元式-This is a realization of the C syntax translation guided procedure, when an input expression can be translated into the corresponding four yuan-

对于给定的输入串，能够判断识别该串是否为给定文法的句型-For a given input string that can identify the string to determine whether a given grammar of the sentence

本程序包括详细的词法分析，语法分析，语义分析和中间代码生成，写得很不错，可读性很强。是关于循环语句的翻译-this procedure include a detailed analysis of the morphology, syntax, semantic analysis and intermediate code generation, very good, very readable. On the loop is the translation