public override Node Clone(Node newParent)
{
var newSelector = new Selector(newParent);
newSelector.Names = new List<string>(Names);
newSelector.Block = (Block)Block.Clone(newSelector);
return newSelector;
}
internal static bool TryParse(Node parent, Queue<Word> remainingWords, out Selector selector)
{
var openingBraceFound = false;
foreach (var word in remainingWords)
{
if (word.Text == "{")
{
openingBraceFound = true;
break;
}
}
if (!openingBraceFound)
{
selector = null;
return false;
}
selector = new Selector(parent);
while (remainingWords.Peek().Text != "{")
{
selector.Names.Add(remainingWords.Dequeue().Text);
}
Block block;
if (!Block.TryParse(selector, remainingWords, out block))
{
selector = null;
return false;
}
selector.Block = block;
return true;
}
internal void TryExtend(Selector targetSelector)
{
var searchNode = this as Node;
while (searchNode != null &&
!(searchNode is Selector))
{
searchNode = searchNode.Parent;
}
var parentSelector = searchNode as Selector;
var expressionValue = Value as Expression;
foreach (NamedValue namedValue in expressionValue.Children)
{
var criteria = namedValue.Text;
var originalTargetSelectorNames = new List<string>(targetSelector.Names);
foreach (var targetSelectorName in originalTargetSelectorNames)
{
if (!targetSelectorName.StartsWith(criteria))
{
continue;
}
var extendedNameSuffix = targetSelectorName.Substring(criteria.Length);
foreach (var parentName in parentSelector.Names)
{
var extendedName = parentName + extendedNameSuffix;
targetSelector.Names.Add(",");
targetSelector.Names.Add(extendedName);
}
}
}
}
