public static List <Element> ElementFilter(ICollection <Element> elist, ElementTest testDelegate)
{
List <Element> ret = new List <Element>();
foreach (Element elem in elist)
{
if (testDelegate(elem))
{
ret.Add(elem);
}
}
return(ret);
}
/// <summary>
/// Validate an element test.
/// </summary>
/// <param name="e">
/// is the expression. </param>
/// <returns> null. </returns>
// XXX NO SEMANTIC CHECK?!
public virtual object visit(ElementTest e)
{
if (e.name() != null)
{
if (!expandItemTypeQName(e.name()))
{
reportBadPrefix(e.name().prefix());
}
}
if (e.type() != null)
{
if (!expandItemTypeQName(e.type()))
{
reportBadPrefix(e.type().prefix());
}
}
return(null);
}
/// <param name="e">
/// is the element test. </param>
/// <returns> e </returns>
public virtual object visit(ElementTest e)
{
return(e);
}