protected static bool EqualOperator(LowercaseString left, LowercaseString right)
{
if (left is null ^ right is null)
{
return(false);
}
return(left is null || left.Equals(right));
}
protected static bool NotEqualOperator(LowercaseString left, LowercaseString right)
{
return(!EqualOperator(left, right));
}