用YACC写的语法分析器

用来测试ESL DSP C COMPILER数学函数库是否正确的VC程序，测试方法，在VC下随机产生函数输入值，并把输入与输出值记录到C：MATH文件中。可以直接用于你所测试的COMPILER。-used to test ESL C COMPILER DSP Math Library VC correct procedures, test methods, the VC randomly generated function input, and import and export value recorded C : MATH document. You can be directly used for testing by the COMPILER.

(1)构造文法G的LR(0)项目 (2)构造文法G的LR(0)项目集规范族及识别活前缀的DFA (3)证明文法G不是LR(0)文法而是SLR(1)文法，并构造SLR(1)分析表 (4)设计LR语法分析程序，且能输出分析过程 (5)列举两个例子测试语法分析程序（识别失败一例，识别成功一例，后者推导步骤不得少于10步） -(1) construct grammar G of the LR (0) item (2) construct grammar G of the LR (0) item sets standards and identification of family living prefix DFA (3) prove that the grammar G is not LR (0) grammar, but the SLR (1 ) grammar, and constructs SLR (1) analysis table (4) design LR parser, and can output analysis process (5) cited two examples of parsing test procedures (identification fails an example, identify the success of a case, the latter shall not be derived step Less than 10 steps)

1．词法分析 设计、编制并调试该C语言子集的词法分析程序，要求结果以二元组形式保存在文件中。-1. Lexical analysis design, develop and debug the C language subset of the lexical analysis procedure that requires results to binary form group to preserve the documents.

前些天写了个小语言的词法分析程序，因为前些天在VC知识库看到一个pascal词法分析的程序，觉得写得挺复杂的。其实词法分析程序的原理都是一样的，所以我想只要搞明白了简单的词法分析程序，再写复杂的就不难了，无非是多加几个关键字，多写几个条件判断语句而已。词法分析是编译程序的基础，也是最简单的。好，现在让我们看程序吧。 先让我们看看这个小语言的文法吧-few days ago wrote a small language lexical analysis procedures, because the other day in the knowledge base to see a VC pascal lexical analysis procedures, find that quite complex. In fact, lexical analysis procedure is the same principle, I think if you understood a simple lexical analysis procedure to write complex it is not difficult, is nothing but add a few keywords and writing several conditions judgment statement it. Lexical analysis is the basis of compilers, as well as the most simple. Well, now let us look at the procedures it. Let us look at this small language grammar it

jsp技术，一个管理系统-jsp technology, a management system management system

一个由LEX编写的C-词法分析程序。为锻炼使用者能力，未加载LEX已编译的代码。建立时最好建立控制台程序。-LEX written by a C-lexical analysis program. The user the ability to exercise without load LEX compiled code. Is best to establish procedures for the establishment of the console.

这是一个编译器程序包括了编译原理中学习的所有内容-This is a compiler compiler included the principle of learning all the elements

一个简单的编译器，有词法分析，语法分析，代码生成-a simple compiler, lexical analysis, grammar analysis, code generation

基于从C++开发的一个LL1文法分析器，内付源码，源码中还有一定的注释-from C-based development of a LL1 grammar analyzer, which paid source, there still is a certain source of the Notes

学生信息注册系统，数据库是ACCESS！-Student Registration information systems, databases are ACCESS!