static void Main(string[] args)
{
if (args.Length == 1)
{
debug = false;
}
switch (args.Length)
{
case 0:
Console.WriteLine("Specify a file path.");
break;
default:
FileStream fs;
try
{
fs = System.IO.File.OpenRead(args[0]);
}
catch (Exception e)
{
Console.WriteLine(e.Message);
break;
}
MiniPL miniPL = MiniPL.GetInstance();
Scanner sc = miniPL.Scanner;
Parser ps = miniPL.Parser;
ParseTree ptree = ps.Parse(sc.Tokenize(fs));
MiniPL.Runnable prog = miniPL.ProcessParseTree(ptree, ps.Errors, ps.IsValidParseTree);
prog.Execute(Console.In, Console.Out);
break;
}
}
private string RunWithInput(string program, string input)
{
MiniPL miniPL = MiniPL.GetInstance();
Scanner sc = miniPL.Scanner;
Parser ps = miniPL.Parser;
ParseTree ptree = ps.Parse(sc.Tokenize(program));
MiniPL.Runnable prog = miniPL.ProcessParseTree(ptree, ps.Errors, ps.IsValidParseTree);
StringWriter writer = new StringWriter();
StringReader reader = new StringReader(input);
prog.Execute(reader, writer);
return(writer.ToString());
}
