/// <summary>
/// Retrieves all element nodes from descendants of the starting
/// element node that match any selector within the supplied
/// selector strings. An additional parameter specifies a
/// particular compiler to use for parsing and compiling the
/// selector.
/// </summary>
/// <remarks>
/// The <paramref name="compiler"/> can be <c>null</c>, in which
/// case a default compiler is used. If the selector is to be used
/// often, it is recommended to use a caching compiler such as the
/// one supplied by <see cref="CreateCachingCompiler()"/>.
/// </remarks>
public static IEnumerable <HtmlNode> QuerySelectorAll(this HtmlNode node, string selector, Func <string, Func <HtmlNode, IEnumerable <HtmlNode> > > compiler)
{
return((compiler ?? CachableCompile)(selector)(node));
}
/// <summary>
/// Similar to <see cref="QuerySelectorAll(HtmlNode,string)" />
/// except it returns only the first element matching the supplied
/// selector strings.
/// </summary>
public static HtmlNode QuerySelector(this HtmlNode node, string selector)
{
return(node.QuerySelectorAll(selector).FirstOrDefault());
}
/// <summary>
/// Retrieves all element nodes from descendants of the starting
/// element node that match any selector within the supplied
/// selector strings.
/// </summary>
public static IEnumerable <HtmlNode> QuerySelectorAll(this HtmlNode node, string selector)
{
return(QuerySelectorAll(node, selector, null));
}
internal HtmlAttributeCollection(HtmlNode ownernode)
{
_ownernode = ownernode;
}