input is a regular expression, you can use : lowercase letters or numbers, said...

flex的使用方法-the use of flex

用mfc编的一个mini pascal compiler，有交互界面，方便用户操作，对于学编译原理以及正在研究mfc的同学来说，是相当不错的参考源码。-mfc series with a mini pascal compiler, interactive interface user-friendly operation, the compiler theory and science is studying mfc students, it is a fairly good reference source.

类pascal的词法分析设计，内容详细。 这是我老师的教案，我看内容较全，希望对您也有帮助！- The kind of pascal lexical analysis design, the content is detailed. This is my teacher teaches the document, I looked content comparatively entire, hoped also has the help to you!

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c―语言的词法分析器。将一个C--语言程序分割成token串的序列。处理C--语言的所有token类型。程序要做成命令行程序，带两个参数，分别表示输入和输出文件名。 -c-language lexical analyzer. A C language program is separated into token strings of sequences. C-treatment of all token types. Procedures to create command line process, with two parameters, respectively, express the input and output file names.

用C++实现编译原理的递归下降语法分析 用C++实现编译原理的递归下降语法分析-C compiler to achieve the principle of recursive grammar analysis dropped C compiler to achieve the principle of recursive grammar analysis drop

一个简单的词法分析器，1代表字符，2代表关键字（命令字），4带表算符界符， 注：要把wangs.txt这个文件放在桌面上，然后在这个TXT里写上你要识别的语句。然后保存后关毕，在运行WANG词法分析.EXE进行词法分析。 完成识别后，会在相应的词面前出现以上代号。暂不能对数字进行识别。因为在某种请况下数字也可表是为字符……稍有困难，但完成老师的针对程序段：area=b+c*d。那简直是小菜一碟。-a simple lexical analyzer, a representative character, the two representatives keyword (command word), with four tables operator sector website Note : The wangs.txt the document on the desktop, then the TXT Lane write you to identify words. Then preserved customs Albert, running WANG lexical analysis. EXE for lexical analysis. After completing the identification, in the appropriate words appear in front of the above code. Provisional figures for the right not to identify. Because of the status of requests under certain figures might be for the characters ... the slightest difficulty, but the completion of procedural teachers : area = b, c* d. It is simply to touch.

实现词法分析,用VB写的对结果进行分类显示-achieve lexical analysis using VB wrote to the classification results show

这是pascal的词法分析程序- This is the pascal lexical analyaer

没什么的 只是一个普通的编译原理的实验程序-it doesn t matter,it is a ordinary test program of complier pronciple