编译原理实验中的yacc源码，是一个基于小类C语言的yacc程序，有助于学习yacc的编写。-principle experiment compiler generates the source code, is based on a subset of the C language yacc procedures, contribute to the preparation of learning yacc.

这是个小的词法分析程序，能判断C/C++的申明语句。参考了<<C专家编程>>的源码。-This is a small lexical analyzer can determine C/C++ to declare statements. Reference to the <<C专家编程>> The source.