new update

version0.2/nasal_interpreter.cpp

@@ -1,9 +1,43 @@
 #include <iostream>
 #include <cstring>
+#include <cstdlib>
 #include "nasal.h"
 
 int main()
 {
+	nasal::nasal_list m;
+	nasal::nasal_hash n;
+	nasal::var k;
+	k.type=VAR_STRING;
+	k.data=new std::string;
+	*((std::string *)k.data)="hello";
+	m.append(k);
+	m.pop();
 	
+	std::string command;
+	std::cout<<">> input \"help\" to find help."<<std::endl;
+	while(1)
+	{
+		std::cout<<">> ";
+		std::cin>>command;
+		if(command=="help")
+		{
+			std::cout<<">> 1.input file name to run the nasal script."<<std::endl;
+			std::cout<<">> 2.command cls to clear the screen."<<std::endl;
+			std::cout<<">> 3.command exit to shut down the program."<<std::endl;
+		}
+		else if(command=="cls")
+		{
+			system("cls");
+			//linux system("clear");
+			//macOS system(clear");
+		}
+		else if(command=="exit")
+			break;
+		else
+		{
+			;
+		}
+	}
 	return 0;
 }