public double Calc(string input)
{
var lexems = _lexer.Execute(input);
var upn = new UpnConverter();
_sy.Execute(lexems, upn);
Console.WriteLine("[{0}]", upn.GetSource());
var engine = new DcEngine();
_sy.Execute(lexems, engine);
var result = engine.Stack.Pop();
if (engine.Stack.Count > 0)
{
throw new InvalidOperationException("Value left on stack");
}
return(result);
}
static void Main(string[] args)
{
SetupParser();
List <Lexem> lexems = new List <Lexem> ();
foreach (string arg in args)
{
lexems.AddRange(Lexer.Execute(arg));
}
CalcEngine engine = new CalcEngine();
SY.Execute(lexems, engine);
Console.WriteLine(engine.Stack.Pop());
if (engine.Stack.Count > 0)
{
Console.Error.WriteLine("WARNING: Some value(s) left on stack");
}
}
