编译原理词法分析的一个小代码

这是一个很好的图书管理系统 数据库SQL2005-e i fjfianidfn ldsif ldno lviv livdf

环境:windows98/2000/xp,Visula C++6.0下编译通过.毕业设计的题目,基本上按照编译原理的步骤实现的,有词法分析,检查,表成式生成等,我想大家应该都会喜欢的!-environment : windows98/2000/xp, Visula 6.0 C compiler through. Graduation topic, basically compiled in accordance with the principle of the steps, lexical analysis, inspection, as table-generation, I think we will be like!

现将本人搜集常用的程序设计语言的词法和形式文法提供给大家。其中，词法是按LEX格式编辑，形式文法是按YACC格式书写，大家可直接用LEX和YACC工具编译生成各类程序设计语言的分析器。-commonly used programming language syntax and grammar forms to the public. Among them, morphology is based on LEX format editing, grammar form is written by YACC format, we can use the LEX and YACC tools various compiler generation programming language analyzer.

语法分析 语法分析- The grammar analysis grammar analysis grammar analyzes

一个14岁的小孩写的D++编译器，很厉害哦-A 14-year-old child wrote D++ Compiler, very powerful, oh

用VC写的一个词法分析器，学习编译原理时特别有用。-VC write a lexical analyzer, compiler theory when learning particularly useful.

利用 lex 和yacc自动生成C语言子集的词法分析和语法分析程序的源程序-using lex and generates automatic generation of C language subset of lexical analysis and parsing the source code of procedure

编译原理实验之词法分析器，实现对输入的字符或语句进行词法分析器。-Compiler lexical analyzer of principle experiment, the realization of the input of characters or words for lexical analyzer.

简单介绍一下，整个工程分为5个文件：Main.c ----- 程序的入口点，其实很简单，就是调用两个函数。Global.h ----- 定义了一些全局变量及宏Parse.h ----- 语法分析器的主要算法Prece.h ----- 定义和实现了一些关于优先级的操作Stack.h ----- 定义和实现了一个栈及其操作编译的时候只要用TC2.0或者WinTC打开Main.c文件进行编译就好了。如发现有Bug请在这里贴出来或者把修改后的代码跟帖在这里:)总之，这个工程仅仅是一个简单示例，告诉大家怎么样把课堂上学到的知识运用到实际编程当中去，工程中所用到的模块化思想，数据结构等知识都是大家学过的，大三了，希望大家在最后这段时间里把写程序的本领练就出来。:)-brief introduction, the entire project is divided into five documents : Main.c----- procedure entry point, it is actually very simple, it is called two functions. Global.h----- definition of global variables and Wang Parse.h----- parser the main algorithm Prece.h----- definition and realization of a number of priority the operation Stack.h----- the definition and implementation of a stack and operation of the compiler used whenever WITH TC 2.0 or WinTC open Main.c documents compiled enough. If found please Bug out here or affixed to amend the code of Columbia here :) Overall, the project is just a simple example, like to tell you how to put classroom knowledge

这是一个此法分析器的手工构造实例，程序很简洁。-This is a method of manual analyzer tectonic example, a very simple procedure.