scannermain.cpp

简单的函数绘图语言编写一个解释器语法分析部分源代码 语法分析的输入是在黑屏幕下输入text.txt,然后看运行结果。

#include "scanner.h"
extern void Parser(char *SrcFilePtr);
#include<iostream>
//#ifndef PARSER_DEBUG
#define PARSER_DEBUG 
//#endif
using namespace std;
void main(/*int argc,char *argv[]*/)
{
	Token token;
	/*if(argc<2)
	{
		cout<<"Input Source File!"<<endl;
	return ;
	}*/
	char filename[50];
	cout<<"Input Source File!"<<endl;
	cin>>filename;
	if(!InitScanner(filename/*argv[1]*/))
	{
		cout<<"Open Source File Error"<<endl;
		return ;
	}
	cout<<"记号类别"<<"    "<<"字符串"<<"    "<<"常数"<<"    "<<"函数指针"<<endl;
	cout<<"-------------------------------------------"<<endl;
	while(1)
	{
		token=GetToken();
		if(token.type!=NONTOKEN)
			cout<<token.type<<"     "<<token.lexeme<<"     "<<token.value<<"    "<<token.FuncPtr<<endl;
		else break;
	};
	cout<<"-----------------------------------------------"<<endl;
	Parser("test.txt"/*filename*/);
	CloseScanner();
}