编译原理实验一词法分析 实验二语法分析，C++程序编写，对编译原理实验一 二的详细编写

类C语言编译器，基本上实现了主要功能的C语言语法，词法分析使用状态转移，语法使用LR（1）方法，自动生成ACTION和GOTO转移表。自顶向下的语法制导翻译，可以生成各种类型的表达式（包括布尔，算术，逻辑等等），循环中的while，选择中的if else 和if等，功能比较强大，对于应付编译原理课程设计足足有余。此代码是本人课程设计的心血。

C语言词法分析（能够识别保留字，标识符，字符串等），能够实现基本的词法分析功能！

.l文件为lex，.c文件为测试文件； 分别使用某种高级语言和LEX实现一个C语言子集的词法分析器，即从输入的源程序中，识别出各个具有独立意义的单词，滤掉空格和注释。

华南农业大学 编译原理 综合性实验报告 选择部分C语言的语法成分，设计其词法分析程序、语法语义分析程序。

编译原理 词法分析器实验代码 从文件读入 cbb.cpp文件

编译原理词法分析程序C语言编写，很久以前的了，应该好用的

文法规则： 1.—>program id 2.—> { 语句 [ 语句 ] } 3.—>||| || 4.—> id [ , id ] ； 5.—> integer | float 6.—> input id [ , id ] ； 7.—> output [ , ] ； 8.—> id = ； 9.—> if { else } 10.—> while 11.—> [ +|－ ] 12.—> [ *|/ ] 13.—> id | con | deci | ( ) 14.—> [ and | or ] 15.—> 16.—> < | | >= | == |

编译原理词法分析，语法分析，语义分析（源代码和实验报告），已经测试运行，绝对对得起10分（本人的承诺）。

C语言词法分析器 #include #include #include char *key0[]={" ","auto","break","case","char","const","continue","default","do","double","else","enum","extern","float","for","goto","if","int","long","register","return","short","signed","sizeof","static","struct","switch","typedef","_Complex","_Imaginary","union","unsigned","void","volatile","while"}; /*保留字表*/ char *key1[]={" ","(",")","[","]","{","}",",",";","'"}; /*分隔符表*/ char *key2[]={" ","+","-","*","/","%","","==",">=","<=","!=","!","&&","||","<>","~","|","^","&","=","?:","->","++","--",".","+=","-=","*=","/="}; /*运算符表*/ int xx0[35],xx1[10],xx2[31]; .......