public IEnumerable<CssRule> ExpandStyleRule(StyleRule rule, CssRule parent)
{
var newRule = new StyleRule(ExpandSelector(rule));
foreach (var childNode in rule.Children.ToArray())
{
if (childNode is StyleRule)
{
var childRule = (StyleRule)childNode;
foreach (var r in ExpandStyleRule(childRule, rule))
{
yield return r;
}
}
else
{
newRule.Add(childNode);
}
}
parent.Remove(rule); // Remove from parent node after it's been processed
if (newRule.HasChildren) yield return newRule;
}
