private static bool ValidateExpression(string expression, Node node)
{
return String.IsNullOrWhiteSpace(expression)
|| node.Evaluate<bool>(expression);
}
private static bool ValidateCompare(Node node, string compareType, string against)
{
var @operator = GetCompareOperator(compareType);
return @operator == null
|| String.IsNullOrWhiteSpace(against)
|| node.Evaluate<bool>("value " + @operator + "(" + against + ")");
}