/// <summary>
/// Peeks at the next field in the input stream and returns what information is available.
/// </summary>
/// <remarks>
/// This may be called multiple times without actually reading the field. Only after the field
/// is either read, or skipped, should PeekNext return a different value.
/// </remarks>
protected override bool PeekNext(out string field)
{
ElementStackEntry stopNode;
if (_elements.Count == 0)
{
stopNode = new ElementStackEntry(null, _input.Depth - 1, false);
}
else
{
stopNode = _elements.Peek();
}
if (!stopNode.IsEmpty)
{
while (!_input.IsStartElement() && _input.Depth > stopNode.Depth && _input.Read())
{
continue;
}
if (_input.IsStartElement() && _input.Depth > stopNode.Depth)
{
field = _input.LocalName;
return(true);
}
}
field = null;
return(false);
}
/// <summary>
/// Reads the root-message close specific to this formatter, MUST be called
/// on the reader obtained from ReadMessageStart(string element).
/// </summary>
public override void ReadMessageEnd()
{
Assert(_elements.Count > 0);
ElementStackEntry stop = _elements.Peek();
while (_input.NodeType != XmlNodeType.EndElement && _input.NodeType != XmlNodeType.Element &&
_input.Depth > stop.Depth && _input.Read())
{
continue;
}
if (!stop.IsEmpty)
{
Assert(_input.NodeType == XmlNodeType.EndElement &&
_input.LocalName == stop.LocalName &&
_input.Depth == stop.Depth);
_input.Read();
}
_elements.Pop();
}
