public static double Evaluate(string expression)
{
var lexer = new CalculatorLexer(new AntlrInputStream(expression));
lexer.RemoveErrorListeners();
lexer.AddErrorListener(new ThrowExceptionErrorListener());
var tokens = new CommonTokenStream(lexer);
var parser = new CalculatorParser(tokens);
var tree = parser.compileUnit();
var visitor = new ExcelVisitor();
return(visitor.Visit(tree));
}
public static string Evaluate(string expression)
{
expression = ReplaceExpression(expression);
var lexer = new ExcelLexer(new AntlrInputStream(expression));
lexer.RemoveErrorListeners();
lexer.AddErrorListener(new ThrowExceptionErrorListener());
var tokens = new CommonTokenStream(lexer);
var parser = new ExcelParser(tokens);
var tree = parser.compileUnit();
var visitor = new ExcelVisitor();
string result = Convert.ToString(visitor.Visit(tree));
if (result == "∞" || result == "не число")
{
throw new MyExceptions.DivideByZero();
}
return(result);
}