xxq250/Nasal-Interpreter
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preparation for v5.0

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Valk Richard Li
2020-12-19 01:26:15 +08:00
parent a913b63f30
commit dff899061a
9 changed files with 329 additions and 2494 deletions
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33
main.cpp
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@@ -4,7 +4,6 @@ nasal_lexer lexer;
nasal_parse parse;
nasal_import import;
std::string inputfile="null";
nasal_runtime runtime;
nasal_codegen code_generator;
nasal_bytecode_vm bytevm;
@@ -16,7 +15,6 @@ void help()
std::cout<<">> [del ] clear the input filename.\n";
std::cout<<">> [lex ] use lexer to turn code into tokens.\n";
std::cout<<">> [ast ] do parsing and check the abstract syntax tree.\n";
std::cout<<">> [run ] run abstract syntax tree.\n";
std::cout<<">> [code ] show byte code.\n";
std::cout<<">> [exec ] execute program on bytecode vm.\n";
std::cout<<">> [logo ] print logo of nasal .\n";
@@ -82,33 +80,6 @@ void ast_print()
return;
}
void runtime_start()
{
lexer.openfile(inputfile);
lexer.scanner();
if(lexer.get_error())
{
die("lexer",inputfile);
return;
}
parse.set_toklist(lexer.get_token_list());
parse.main_process();
if(parse.get_error())
{
die("parse",inputfile);
return;
}
import.link(parse.get_root());
if(import.get_error())
{
die("import",inputfile);
return;
}
runtime.set_root(import.get_root());
runtime.run();
return;
}
void show_bytecode()
{
lexer.openfile(inputfile);
@@ -176,7 +147,7 @@ int main()
system("cls");
#endif
logo();
std::cout<<">> Nasal interpreter ver 3.0 .\n";
std::cout<<">> Nasal interpreter ver 5.0 .\n";
std::cout<<">> Code: https://github.com/ValKmjolnir/Nasal-Interpreter\n";
std::cout<<">> Info: http://wiki.flightgear.org/Nasal_scripting_language\n";
std::cout<<">> Input \"help\" to get help .\n";
@@ -204,8 +175,6 @@ int main()
lex_func();
else if(command=="ast")
ast_print();
else if(command=="run")
runtime_start();
else if(command=="code")
show_bytecode();
else if(command=="exec")