my_globals.h

词法、语法分析程序。 绝对不是目前网络上流行的任何一个版本

FILE *f1,*f2;

int I=0;
//搜索指示器

int J=0;
//变量名表指示器

int K=0;
//常量表指示器

char buff[MAX_BUFF_LENTH];
//建立缓冲区

char strToken[MAX_BUFF_LENTH];
//存放构成单词符号的字符串

char ch;
//字符变量，存放最新读进的源程序字符

//保留字表
 static char a[lenth1+1][10]={"program","const","var",
	"integer","long","procedure","if","then","while",
	"do","read","write","begin","end","odd"};
 static int a_value[lenth1];

//变量名表
 char b[MAX_NUM_OF_V+1][MAX_LENTH_OF_V];
 int  b_value[MAX_NUM_OF_V+1];

//常量表
 char c[MAX_NUM_OF_C+1][MAX_LENTH_OF_C];
 int  c_value[MAX_NUM_OF_C+1];

//运算符、界符表
static char d[lenth2][3]={"+" , "-" , "*" , "/" , "=" ,
	 "<>" , "<" , "<=" , ">" , ">=" , "." , "," , ";" , 
	 ":" , ":=" , "(" , ")"};
int d_value[lenth2];

//语法分析器中读出的内码
int Code;

//语法分析器中的输入文件流
ifstream infile("output.txt",ios::in|ios::nocreate);