public static void Main(string[] args)
{
LineEditor lineEditor = new LineEditor("DiceShell");
string input;
while ((input = lineEditor.Edit("DiceShell $ ", "")) != null)
{
if (string.IsNullOrEmpty(input))
{
continue;
}
try
{
AntlrInputStream inputStream = new AntlrInputStream(input);
DiceLexer diceLexer = new DiceLexer(inputStream);
CommonTokenStream commonTokenStream = new CommonTokenStream(diceLexer);
DiceParser diceParser = new DiceParser(commonTokenStream);
DiceParser.ShellContext context = diceParser.shell();
DiceVisitor visitor = new DiceVisitor();
int result = (int)visitor.Visit(context);
Console.WriteLine(string.Format("[{0:HH:mm:ss}] {1}\n", DateTime.Now, result));
}
catch (Exception)
{
Console.WriteLine("Parsing Error\n");
}
}
}
private static DiceParser Setup(string text)
{
AntlrInputStream inputStream = new AntlrInputStream(text);
DiceLexer diceLexer = new DiceLexer(inputStream);
CommonTokenStream commonTokenStream = new CommonTokenStream(diceLexer);
DiceParser diceParser = new DiceParser(commonTokenStream);
return(diceParser);
}
public static IEnumerable <(double, string)> EvaluateExpression(string exp)
{
try
{
Console.WriteLine($"Evaluating: {exp}");
var inputStream = new AntlrInputStream(exp);
var lexer = new DiceLexer(inputStream);
var tokenStream = new CommonTokenStream(lexer);
var parser = new DiceParser(tokenStream);
var context = parser.request();
var evaluator = new RequestEvaluator();
return(evaluator.Visit(context));
}
catch (Exception e)
{
Console.WriteLine(e);
return(new[] { (0.0, "Failed to parse and evaluate") });
static Dice()
{
Lexer = new DiceLexer(new AntlrInputStream(string.Empty));
Parser = new DiceParser(new CommonTokenStream(Lexer));
}