语法分析器词法分析器

这是一份实验报告，目的是掌握YACC的使用方法，了解YACC处理二义性的方法。 用YACC等工具生成如下文法表示的表达式对应的计算器 exp->exp + exp | exp - exp| exp * exp |exp / exp |exp ^ exp | - exp |(exp) |NUM 对于输入的表达式，能输出结果。比如: 3 +(4 *5)结果应为23 当出现错误时可以进行错误处理。 -This is a test report, the purpose is to master the use YACC to learn YACC handling of the ambiguity approach. Using tools such as YACC grammar that generates the following expression for the corresponding calculator exp-> exp+ exp | exp- exp | exp* exp | exp/exp | exp ^ exp |- exp | (exp) | NUM expression for the input type, can be output. For example: 3+ (4* 5) the result should be 23 when the error can be error-handling.

一个简易C语言解释器，语法规范见设计文档，感觉挺好用的，至少可以借鉴一下设计过程-a simple C language interpreter, syntax, see the design documents, the feeling is very good. at least we can draw on this design process

一个使用flex和bison的小例子-use of a flex and bison small examples

ldpc译码器 目前通信系统中很多标准都在采用ldpc码，所以他很重要-LDPC decoder, many of the current communication system standards in the use of LDPC code, so he is very important

用 c++写的编译器， 只有语法和词法- Compiler writes which with c, only has the grammar and the morphology

C-MINUS编译器，一个很不错的编译原理实践成果-C-MINUS compiler, a very good practice to compile the results of the principle

一个c compiler的source code-c compiler of a source code

编译原理词法分析程序设计,是我们当时的要求做的课设题.-compiler theory lexical analysis program design, we then asked them to set up courses that.

利用LEX生成工具生成统计文本文件中字符、单词和行数，并报告统计结果。-LEX generated using statistical tools generated text file of characters, words and action, and a report on results.

ll(1)语义分析器-ll (1) Semantic Analyzer