static void Main(string[] args)
{
if (!CheckInput(args))
{
Die("Invalid parameters");
}
if (args[0] == "-t")
printGrammerTree = true;
if (args[0] == "-s")
printSymbolTable = true;
Scanner scaner = new Scanner();
Parser parser = new Parser(scaner);
ParseTree tree = parser.Parse(GetInput(args[args.Length - 1]));
tree = SimplyTree(tree);
if (printGrammerTree)
{
Console.WriteLine(tree.PrintTree());
return;
}
EnviromentBlock globalSymbol = new EnviromentBlock();
globalEnviroment.AddEnviroment(globalSymbol);
AddIoFunctionToGlobal("return");
AddIoFunctionToGlobal("print");
AddIoFunctionToGlobal("readline");
AddBuildinFunctionToGlobal("==");
AddBuildinFunctionToGlobal("+");
AddBuildinFunctionToGlobal("-");
AddBuildinFunctionToGlobal("*");
AddBuildinFunctionToGlobal("/");
AddBuildinFunctionToGlobal("%");
EvalTree(tree, globalEnviroment);
if (printSymbolTable)
{
Console.WriteLine(globalEnviroment.Print());
}
else
{
RunMainFunction();
}
return;
}
public Parser(Scanner scanner)
{
this.scanner = scanner;
}
