一个非常完整的编译程序，有每个语法的代码，

词法分析器 对输入的程序进行分析，将关键字，保留字与系统标识符分开，并对其属性进行说明。 建立数组，将单词读入，对单词的ASCII码进行判断，将在ASCII码值在一定区间进行区分（使用if语句来判断），分开来后，对其所在ASCII值区间的不同，给予以不同的属性(比如：系统保留字…），词法分析器完成后要能识别+,-,=等字符。-lexical analyzer on the importation procedures for analysis, keyword, the word reservation system with separate identifier, and a description of their attributes. The establishment of an array, you read the word, the right word ASCII judgment, in ASCII value in a certain area and distinguish between (use to determine if statements), separately, its value lies ASCII range of different, to give a different properties (such as : system retain the word ...), after the completion of a lexical analyzer to identify,-, =, etc. characters.

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.

在实验三所给文法中加上语义动作，使其在语法分析的同时，产生相应的四元式序列-In the experiment three to add semantic actions to the grammar, so that in parsing the same time, resulting in a corresponding quaternary-type sequence

是关于一个词法分析器的一个程序-Is about a morphology analyzer procedure

基于stc 8052单片机 的步进电机的控制 包扩加速 减速 显示-very good

javascript语言的解释器源码，主要用在firefox浏览器中。 -javascript language interpreter source, mainly in firefox browser.

一个很全的编译器程序,有各种文法的代码,各种方法都分开写的- A very entire compiler procedure, has each grammar the code, each method all separates writes

编译原理实验中的工具BISON,可以再windows或者DOS下使用-Compilation Principle Experiment tools BISON, can be used under windows or DOS

用递归下降法分析算术表达式的框图，主要完成： ⑴ 通知外界键入算术表达式； ⑵ 控制Ｅ过程分析算术表达式； ⑶ 根据分析结果之正误，分别通知外界不同的信息。 -Analysis of recursive descent method with arithmetic expressions diagram, mainly to complete: ⑴ notice outside type arithmetic expressions ⑵ control process analysis arithmetic expression E ⑶ results are based on an analysis of error, respectively, different information to inform the outside world.

一个小计算器的实现(编译原理),用Lex和bison-Realize a small calculator (Principle compiler), with Lex and bison