recognize_token.h

词法分析器 用c或c++描述toyl语言词法分析器

// Recognize_Token.h: interface for the Recognize_Token class.
//
//////////////////////////////////////////////////////////////////////

#if !defined(AFX_RECOGNIZE_TOKEN_H__436F3A51_74DD_4DF4_BE70_66FE27F19FF5__INCLUDED_)
#define AFX_RECOGNIZE_TOKEN_H__436F3A51_74DD_4DF4_BE70_66FE27F19FF5__INCLUDED_

#if _MSC_VER > 1000
#pragma once
#endif // _MSC_VER > 1000
#include <fstream.h>
#include <stdlib.h>
#include <iostream.h>
#include "Def_Token.h"
class Recognize_Token  
{

public:
	Recognize_Token(char strinFile[20],char stroutFile[20]);
	virtual ~Recognize_Token();
	void print_token(char strinFile[20]);
private:
	Token_type Tokens[100];
	char str_token[100];
	int point;
	int p_type;
	void next_token( );
	void next_char( );
	char next_avail_char( );
	void back();
	void recognize_number(char ch);
	void recognize_name(char ch);
	bool is_digit(char ch);
	bool is_letter(char ch);
	void error(int mark);

};

#endif // !defined(AFX_RECOGNIZE_TOKEN_H__436F3A51_74DD_4DF4_BE70_66FE27F19FF5__INCLUDED_)