floraachy/Nasal-Interpreter
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update 'import'

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This commit is contained in:
Valk Richard Li
2020-10-11 05:28:27 -07:00
committed by GitHub
parent e223eff9b9
commit 939a7a62b7
9 changed files with 263 additions and 97 deletions
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108
version3.0/main.cpp
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@@ -3,20 +3,19 @@
nasal_resource resource;
nasal_lexer lexer;
nasal_parse parse;
nasal_import preprocessor;
std::string command;
std::string inputfile="null";
nasal_runtime runtime;
void help()
{
std::cout<<">> [\'file\'] input a file."<<std::endl;
std::cout<<">> [cls ] clear the screen."<<std::endl;
std::cout<<">> [\"file\"] input a file."<<std::endl;
std::cout<<">> [clear ] 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<<">> [lex ] turn code into tokens."<<std::endl;
std::cout<<">> [par ] turn tokens into abstract syntax tree."<<std::endl;
std::cout<<">> [ast ] check the abstract syntax tree."<<std::endl;
std::cout<<">> [del ] clear the source code."<<std::endl;
std::cout<<">> [rs ] print source code."<<std::endl;
std::cout<<">> [lex ] use lexer to turn code into tokens."<<std::endl;
std::cout<<">> [ast ] do parsing and check the abstract syntax tree."<<std::endl;
std::cout<<">> [run ] run code."<<std::endl;
std::cout<<">> [logo ] print logo of nasal ."<<std::endl;
std::cout<<">> [exit ] quit nasal interpreter."<<std::endl;
@@ -38,68 +37,70 @@ void del_func()
resource.clear();
lexer.clear();
parse.clear();
inputfile="null";
std::cout<<">> [Delete] complete."<<std::endl;
return;
}
void die(std::string stage,std::string filename)
{
std::cout<<">> ["<<stage<<"] in <\""<<filename<<"\">: error(s) occurred,stop."<<std::endl;
return;
}
void lex_func()
{
lexer.scanner(resource.get_file());
if(!lexer.get_error())
lexer.print_token();
else
std::cout<<">> [lexer] error(s) occurred,stop.\n";
return;
}
void par_func()
{
lexer.scanner(resource.get_file());
if(!lexer.get_error())
if(lexer.get_error())
{
parse.set_toklist(lexer.get_token_list());
parse.main_process();
if(parse.get_error())
std::cout<<">> [parse] error(s) occurred,stop.\n";
die("lexer",inputfile);
return;
}
else
std::cout<<">> [lexer] error(s) occurred,stop.\n";
lexer.print_token();
return;
}
void ast_print()
{
lexer.scanner(resource.get_file());
if(!lexer.get_error())
if(lexer.get_error())
{
parse.set_toklist(lexer.get_token_list());
parse.main_process();
if(parse.get_error())
std::cout<<">> [parse] error(s) occurred,stop.\n";
else
parse.get_root().print_ast(0);
die("lexer",inputfile);
return;
}
else
std::cout<<">> [lexer] error(s) occurred,stop.\n";
parse.set_toklist(lexer.get_token_list());
parse.main_process();
if(parse.get_error())
{
die("parse",inputfile);
return;
}
parse.get_root().print_ast(0);
return;
}
void runtime_start()
{
lexer.scanner(resource.get_file());
if(!lexer.get_error())
if(lexer.get_error())
{
parse.set_toklist(lexer.get_token_list());
parse.main_process();
if(parse.get_error())
std::cout<<">> [parse] error(s) occurred,stop.\n";
else
{
runtime.set_root(parse.get_root());
runtime.run();
}
die("lexer",inputfile);
return;
}
else
std::cout<<">> [lexer] error(s) occurred,stop.\n";
parse.set_toklist(lexer.get_token_list());
parse.main_process();
if(parse.get_error())
{
die("parse",inputfile);
return;
}
preprocessor.preprocessing(parse.get_root());
if(preprocessor.get_error())
{
die("import",inputfile);
return;
}
runtime.set_root(preprocessor.get_root());
runtime.run();
return;
}
@@ -110,7 +111,6 @@ int main()
system("chcp 65001");
system("cls");
#endif
// this curve looks really cool
logo();
#ifdef _WIN32
std::cout<<">> [system] Windows system."<<std::endl;
@@ -121,9 +121,10 @@ int main()
#ifdef TARGET_OS_MAC
std::cout<<">> [system] MacOS system."<<std::endl;
#endif
std::cout<<">> Nasal interpreter ver 3.0 ."<<std::endl;
std::cout<<">> Code: https://github.com/ValKmjolnir/Nasal-Interpreter"<<std::endl;
std::cout<<">> More info: http://wiki.flightgear.org/Nasal_scripting_language"<<std::endl;
std::cout<<">> Info: http://wiki.flightgear.org/Nasal_scripting_language"<<std::endl;
std::cout<<">> Input \"help\" to get help ."<<std::endl;
while(1)
{
@@ -131,7 +132,7 @@ int main()
std::cin>>command;
if(command=="help")
help();
else if(command=="cls" || command=="clear")
else if(command=="clear")
{
#ifdef _WIN32
system("cls");
@@ -145,14 +146,10 @@ int main()
}
else if(command=="del")
del_func();
else if(command=="lib")
resource.load_lib();
else if(command=="rs")
resource.print_file();
else if(command=="lex")
lex_func();
else if(command=="par")
par_func();
else if(command=="ast")
ast_print();
else if(command=="run")
@@ -162,7 +159,10 @@ int main()
else if(command=="exit")
break;
else
resource.input_file(command);
{
inputfile=command;
resource.input_file(inputfile);
}
}
return 0;
}