一个很不错的C++语法分析器，主要使用的是LL1文法，可以自动判断是否为LL1文法，若是，可以对例句进行语法分析-A very good C++ parser, the main use of the LL1 grammar, can automatically determine whether the LL1 grammar, and if so, can listen to parse

this program implements the LL1 algorithme for compilation. it s a scanner and parser for some expressions in C language