flex，词法自动生成工具，他可以在极短时间内帮助产生编译器的词法c源程序-flex, automatically generated lexical tools in a very short time he can help the compiler generate c source of lexical

台湾林智仁研究小组开发的libsvm-3.0.1工具箱，对数据进行分类！基于C上开发，上层接口，可以在matlab上编程运行-Taiwan' s Lin Zhiren research team developed libsvm-3.0.1 toolbox, the data categories! Developed based on C, the upper interface, can be programmed to run on matlab