private object GetSingleValue(IOperationExpressionContext context, string operand)
{
if (context.IsString(operand))
{
return(operand.Substring(1, operand.Length - 2));
}
bool bvalue = false;
if (bool.TryParse(operand, out bvalue))
{
return(bvalue);
}
long ivalue = 0L;
if (long.TryParse(operand, out ivalue))
{
return(ivalue);
}
decimal fvalue = 0M;
if (decimal.TryParse(operand, out fvalue))
{
return(fvalue);
}
return(operand);
}
protected virtual bool ComputeResult(IOperationExpressionContext context, IEnumerable <object> operands)
{
object operand1 = operands.ElementAt(0);
object operand2 = operands.ElementAt(1);
if (object.ReferenceEquals(operand1, operand2))
{
return(true);
}
if (operand1 == operand2)
{
return(true);
}
if (context.IsString(operand1) ^ context.IsString(operand2))
{
return(false);
}
return(string.Equals(operand1.ToString(), operand2.ToString(), StringComparison.OrdinalIgnoreCase));
}