这是一个c++环境下的模拟文件系统的部分源代码，支持词法分析，其中用到头文件#Include \"lex.h\"-c This is a simulated environment of the file system source code, support for lexical analysis, which uses the first document # Include "lex.h"

Lex and Yacc calculator compiler in c-Lex and Yacc calculator compiler in c++

Lexical analyzer allows you to parse your own computer language. You have to analyze and make a library with it.