public static void Main(String[] args)
{
var data = File.ReadAllText("input.txt");
var input = new AntlrInputStream(data);
CalculatorLexer lexer = new CalculatorLexer(input);
CommonTokenStream tokens = new CommonTokenStream(lexer);
CalculatorParser parser = new CalculatorParser(tokens);
var tree = parser.input();
CalculatorBaseVisitorImpl calcVisitor = new CalculatorBaseVisitorImpl();
double result = calcVisitor.Visit(tree);
Console.WriteLine("Result: " + result);
}
public void Test_Visitor_With_SingleExpression_And_MultipleVariables_Returns_Variables()
{
var expressions = @"x = (((nrm / (1 + pct)) * (1 + (iss/100) + (pis/100))) / (1 + (iss/100) + (pis/100))) * (1 + (iss/100) + (pis/100) + frd)";
AntlrInputStream input = new AntlrInputStream(expressions);
CalculatorLexer lexer = new CalculatorLexer(input);
CommonTokenStream tokens = new CommonTokenStream(lexer);
CalculatorParser parser = new CalculatorParser(tokens);
IParseTree tree = parser.input();
CalculatorBaseVisitorImpl visitor = new CalculatorBaseVisitorImpl();
visitor.Variables.Add("nrm", 1223.5251m);
visitor.Variables.Add("pct", 0.05m);
visitor.Variables.Add("iss", 5m);
visitor.Variables.Add("pis", 3m);
visitor.Variables.Add("frd", 0.012m);
visitor.Visit(tree);
var result = visitor.Variables["x"];
}
static void Main(string[] args)
{
try
{
StreamReader inputStream = new StreamReader(Console.OpenStandardInput());
AntlrInputStream input = new AntlrInputStream(inputStream.ReadToEnd());
CalculatorLexer lexer = new CalculatorLexer(input);
CommonTokenStream tokens = new CommonTokenStream(lexer);
CalculatorParser parser = new CalculatorParser(tokens);
IParseTree tree = parser.input();
Console.WriteLine(tree.ToStringTree(parser));
CalculatorVisitor visitor = new CalculatorVisitor();
Console.WriteLine(visitor.Visit(tree));
}
catch (DivideByZeroException ex)
{
Console.WriteLine("Cannot Divide By Zero");
}
Console.ReadLine();
}
static void Main(string[] args)
{
var expressions = @"x = (((nrm / (1 + pct)) * (1 + (iss/100) + (pis/100))) / (1 + (iss/100) + (pis/100))) * (1 + (iss/100) + (pis/100) + frd)";
AntlrInputStream input = new AntlrInputStream(expressions);
CalculatorLexer lexer = new CalculatorLexer(input);
CommonTokenStream tokens = new CommonTokenStream(lexer);
CalculatorParser parser = new CalculatorParser(tokens);
IParseTree tree = parser.input();
CalculatorBaseVisitorImpl visitor = new CalculatorBaseVisitorImpl();
visitor.Variables.Add("nrm", 1223.5251m);
visitor.Variables.Add("pct", 0.05m);
visitor.Variables.Add("iss", 5m);
visitor.Variables.Add("pis", 3m);
visitor.Variables.Add("frd", 0.012m);
visitor.Visit(tree);
var result = visitor.Variables["x"];
Console.ReadLine();
}