refactor

version2.0/main.cpp

@@ -0,0 +1,87 @@
+#include "nasal.h"
+
+resource_file res;
+nasal_lexer lexer;
+nasal_parse parser;
+
+std::string command;
+
+int main()
+{
+	std::cout<<">> Nasal interpreter by github:ValKmjolnir"<<std::endl;
+	std::cout<<">> Input \"help\" to get help."<<std::endl;
+	while(1)
+	{
+		std::cout<<">> ";
+		std::cin>>command;
+		if(command=="help")
+		{
+			std::cout<<">> [\'file\'] input a file."<<std::endl;
+			std::cout<<">> [cls   ] clear the screen."<<std::endl;
+			std::cout<<">> [del   ] clear the resource code."<<std::endl;
+			std::cout<<">> [lib   ] add lib file."<<std::endl;
+			std::cout<<">> [rs    ] print resource code."<<std::endl;
+			std::cout<<">> [total ] print resource code with lib code."<<std::endl;
+			std::cout<<">> [lexer ] turn code into tokens."<<std::endl;
+			std::cout<<">> [parser] turn tokens into abstract syntax tree."<<std::endl;
+			std::cout<<">> [ast   ] check the abstract syntax tree."<<std::endl;
+			std::cout<<">> [exit  ] quit nasal interpreter."<<std::endl;
+		}
+		else if(command=="cls")
+		{
+			system("cls");
+			// win system("cls");
+			// linux system("clear");
+			// macOS system("clear");
+		}
+		else if(command=="del")
+		{
+			res.delete_all_source();
+			std::cout<<">> [Delete] complete."<<std::endl;
+		}
+		else if(command=="lib")
+		{
+			res.load_lib_file();
+			std::cout<<">> [Lib] loaded."<<std::endl;
+		}
+		else if(command=="rs")
+		{
+			res.print_resource(false);
+		}
+		else if(command=="total")
+		{
+			res.print_resource(true);
+		}
+		else if(command=="lexer")
+		{
+			lexer.scanner(res.get_source());
+			lexer.generate_detail_token();
+			if(!lexer.get_error())
+				lexer.print_token_list();
+			else
+				std::cout<<">>[Lexer] error occurred,stop."<<std::endl;
+		}
+		else if(command=="parser")
+		{
+			lexer.scanner(res.get_source());
+			lexer.generate_detail_token();
+			if(!lexer.get_error())
+			{
+				parser.get_token_list(lexer.get_detail_token());
+				parser.print_detail_token();
+				parser.main_generate();
+			}
+			else
+				std::cout<<">>[Lexer] error occurred,stop."<<std::endl;
+		}
+		else if(command=="ast")
+		{
+			;
+		}
+		else if(command=="exit")
+			break;
+		else
+			res.input_file(command);
+	}
+	return 0;
+}