设计一个实用的小型类C语言的编译器，能够通过词法分析程序将一串字符流转换为一组单词，并能够通过语法分析程序将该单词组转换为中间代码，中间代码可为四元组等各种形式。-practical design a small category C language compiler. through lexical analysis procedure to a bunch of characters flow into a group of words Grammar can pass this word

编译器 词法分析器的主要识别循环过程。对编译原理有困难的朋友可以下载学习学习。-The main identification cycle compiler lexical analyzer. Compiler theory difficult to learn a friend can be downloaded.

基于初级PL0文法的编译器实现，可以处理repeat...until语句的循环结构，具体包括词法分析，语法分析，语义分析，解释执行等处理模块。-Based on the primary grammar PL0 compiler implementation, you can handle repeat ... until loop structure statements, including lexical analysis, syntax analysis, semantic analysi