public bool CheckExpression(IExpression expression)
{
int count = 0;
foreach (var symbol in expression.Expression)
{
if ("()*/-+^".Contains(symbol.ToString()))
{
count++;
}
}
if (count > 50)
{
return(true);
}
var Elements = new List <PrimitiveElement>();
Elements.AddRange(expression.Arguments
.ConvertAll(a => new Argument($"{a.Name} = {a.Value}")));
Elements.AddRange(UserFunctions.ConvertAll(f => new Function(f.GetExpression)));
Elements.AddRange(UserConstants.ConvertAll(c => new Argument(c.Name, c.Value)));
Expression test = new Expression(expression.Expression, Elements.ToArray());
return(!test.checkSyntax());
}
public double Calculate(string expression)
{
if (CheckExpression(expression))
{
throw new ArgumentException();
}
var Elements = new List <PrimitiveElement>();
Elements.AddRange(UserFunctions.ConvertAll(f => new Function(f.GetExpression)));
Elements.AddRange(UserConstants.ConvertAll(c => new Argument(c.Name, c.Value)));
Expression exp = new Expression(expression, Elements.ToArray());
return(exp.calculate());
}