scanner.h

snl语言的语法分析 （递归下降法）词法分析

#include<iostream>
#include<string>
using namespace std;





#ifndef _S_H
#define _S_H

struct Token
{
	int i_row;     

	string str_wom;    

	string str_grm;   

	Token * T_next;      

};

class scanner
{
public:
	scanner();
	~scanner();

	int IsLetter(char a);     

	int IsNum(char a);     

	int Mscan();           

	void AddNewToken(int r,string str1,string str2);
	void scanner_out();
	Token* GetToken();			

	

private:
	int i_IsRight;     

	int i_Row;     

	int i_SmBr;     

	int i_MiBr;     

	int i_BiBr;    

	int i_SgQu;     

	Token * T_first;     

	Token * T_last;     

	int i_Isfirst;       

};
#endif