智能的词法分析 ，能任意输入正则表达式，能求出NFA，DFA，minDFA,和最后的匹配情况-Lexical analysis of intelligence, can enter any regular expression can be obtained NFA, DFA, minDFA, and the final match of the situation

一个简单的C语言编译器-a simple C language compiler

词法分析,语法分析,文件中有语言的文法,根据文法写出的程序样例,还有根据样例进行词法分析得出的文件-lexical analysis, grammar analysis, the paper is the language grammar, grammar write the program sample, for example under the lexical analysis of documents

本程序的功能是：将中缀表达式（只能含有的运算符为( ) / * + - =）转化为后缀表达式，-this procedure is the function : China will decorate the expression (containing only the operator ()/*- =) into suffix expression,

请认真阅读您的文件包然后写出其具体 -Please read them carefully and then your package, please write the specific documents that you carefully read the package and then write the specific

通信传输系统中的PCM编码解码方式。matlab实现。-Communication System PCM codec mode. matlab achieve.

LL(1)文法使用的是确定的自顶向下的分析技术。LL(1)的含义是：第一个L表明自顶向下分析是从左向右扫描输入串，第2个L表明分析过程中将使用最左推导，1表明只需向右看一个符号便可决定如何推导，即选择哪个产生式(规则)进行推导。 LL(1)文法的判别需要依次计算FIRST集、FOLLOW集和SELLECT集,然后判断是否为LL(1)文法,最后再进行句子分析。 -LL (1) grammar using a set top-down analysis techniques. LL (1) the meaning is: the first one L shows a top-down analysis is a scan input string from left to right, the first two L shows the analysis process will be the most left-derivation, one that will be just right to see a sign can decide how to derive, choose what Production (rules) for derivation. LL (1) grammar, followed by calculation of the discriminant needs FIRST sets, FOLLOW sets and SELLECT set, and then determine whether to LL (1) grammar, the last sentence further analysis.

编译原理的词法分析程序-compiler tenets of lexical analysis procedure

一个用于检查c语法错误的程序- Uses in to inspect the c grammatical error the procedure

词法分析，LL1语法分析，语义分析，中间代码生成，中间代码优化（常表达式优化，公共表达式优化，循环不变式优化），中间代码生成目标代码，目标代码的解释执行，详细地阐述了一个编译器的设计和实现.-lexical analysis, LL1 syntax analysis, semantic analysis and code generation and code optimization (regular expression optimization, public expression optimization, optimization loop invariant), intermediate code generated object code, object code to explain the implementation of a detailed exposition of a compiler the design and implementation.