www.pudn.com > hsgbiyiyuanli.rar > define.h

#include 
#include 
#include 
#include 
#include 
#include 
#include 
#include 
using namespace std; 
 
#define MAXLEN 127   
#define SIZE  10  //单个标示符长度不能超过10个字符																			 
#define true 1 
#define false 0 
 
////以下为将用到的函数定义 
void scaner(); 
void sort(); 
char *readline(); 
char fetch();			//到缓冲区中取字符 
int unfetch( int n );	//将指向缓冲区的指针退后n个,仅仅指针退后，取到变量中的内容不变。 
void dataproces();		//数字处理 
int  symproces();		//符号处理 
void alfaproces();      //字母处理 
int  char_process();	//字符常数处理 
int searchkeyID(char *s);  //查找关键字 
void searchflag(char *s);  //查填符号表中是否有标识符，若有则返回入口，若无，则添加并返回入口 
int fill_flagtab_int( int temp);//将立即数整数填入符号表并得到一个索引 
int fill_flagtab_float(float temp);//将立即数浮点数填入符号表并得到一个索引 
int fill_flagtab_char(char *temp); 
//int fill_flagtab_bool(bool temp); 
			///////////// 
int synditer();		//语法分析 
void get_token();		//从token文件读取一行 
int fill_quad(struct tk &); 
int varst( tk &token );//处理变量说明 
int IDS(struct tk &);//匹配产生式 
int push_stack(struct tk); 
int pop_stack(struct tk &); 
int fill_type(struct tk token,int type); 
int STL(struct tk &);//处理复合句中的语句串，匹配产生式->;|<>,遇到end 返回， 
					//使用语义子程序BACKPATCH(q,t) 
 
vector STSORT(struct tk &);//处理赋值语句及散转处理各控制语句 
vector IFS();	//IF语句 
vector REPEATS();//REPEAT语句 
int pop_vector(vector &s_chain);//将出口链弹空 
int BE(vector  &,vector  &); 
int BT(vector  &,vector  &); 
int BF(vector  &,vector  &); 
vector MERG(vector  &P1,vector  &P2);//合并 
int BACKPATCH( vector &,int );	//回填 
vector	AE();//算术运算 
int precede(struct tk,struct tk);//比较优先级 
int OPRATE(struct tk ,struct tk, struct tk);//进行规约运算 
int push_functor(struct tk );//将算符压栈 
int pop_functor(struct tk &); 
int get_top_fun(struct tk &);//将算数压栈 
int push_term(struct tk ); 
int pop_term(struct tk &); 
 
int GENCODE(int ,int ,int ,int);//生成四元式	 
int print_quad();//打印四元式 
 
int tran_to_asm();//由四元式产生汇编代码 
///以上为将用到的函数定义 
 
///以下为将用到的变量 
FILE *in; 
FILE *out; 
FILE *testin; 
FILE *testout; 
FILE *otherout; 
//关键字列表 
struct key//关键字表 
{ 
	char word[SIZE]; 
	int  ID ;   
}keyword[] = { 
	{"and",1},{"array",2},{"begin",3},{"bool",4},{"call",5},{"case",6},{"char",7},{"constant",8},{"do",9},{"else",10}, 
	{"end",11},{"false",12},{"for",13},{"if",14},{"input",15},{"integer",16},{"not",17},{"of",18},{"or",19}, 
	{"output",20},{"procedure",21},{"program",22},{"read",23},{"real",24},{"repeat",25},{"set",26},{"then",27}, 
	{"to",28},{"true",29},{"until",30},{"var",31},{"while",32},{"write",33} ,{"SYS",34}}; 
 
	 
enum flagkind { simplevar, constval,arrayname,coursename,program,T_PLACE=128,SYS=65535,} ;//简单变量，常数名，数组名，过程名 
enum flagtype { int_num, real_num,bool_num,char_num} type;       //整数、实数，布尔，字符型 
struct flag 
{ 
	 //short unsigned index; 
	 char name[SIZE]; 
	 int kind; 
	 int type; 
	 union { int val_int; float val_float; bool val_bool; char val_char[6]; } val;                                                                                                                                          
} FLAGTAB[MAXLEN];//符号表 
 
char *head = (char *)malloc(sizeof(char *));  //指向缓冲区的指针 
char newline[MAXLEN]; 
short unsigned int f_amount = 0;//标示符表中的标示符个数-1 
 
struct tk{ 
	int kind_code; 
	int val; 
} token; 
struct tk stack[MAXLEN];//用于IDS中的堆栈 
struct{ 
	int	opcode; 
	int ag1; 
	int ag2; 
	int result; 
}quad[MAXLEN];//静态的四元式表，最大长度127*/ 
short int	quad_index = 0; 
short int	stack_index = 0; 
 
struct tk functor[MAXLEN];//算符栈 
int fun_index=0; 
struct tk term[MAXLEN];//算数栈 
int term_index=0; 
 
int NXQ;//初值1 
 
bool y_fuzhi=true;//用来区分简单赋值与算术运算后的赋值