public static XPathSequence FnIndexOf(XQueryContext ctx, XPathSequence items, XPathItem item, CultureInfo ci)
{
ArrayList al = new ArrayList();
IEnumerator e = items.GetEnumerator();
for (int i = 0; e.MoveNext(); i++)
{
XPathItem iter = e.Current as XPathItem;
if (iter.XmlType.TypeCode == XmlTypeCode.String)
{
if (ci.CompareInfo.Compare(iter.Value, item.Value) == 0)
{
al.Add(i);
}
}
else
{
IComparable ic = (IComparable)iter.TypedValue;
if (ic.CompareTo((IComparable)item.TypedValue) == 0)
{
al.Add(i);
}
}
}
return(new ListIterator(ctx, al));
}
public static bool FnEmpty(XPathSequence e)
{
if (e is XPathEmptySequence)
{
return(true);
}
return(!e.GetEnumerator().MoveNext());
}