private static ISyndicationContent ReadSyndicationContent(XmlReader reader)
{
string type = null;
var content = new SyndicationContent(reader.LocalName, reader.NamespaceURI, null);
//
// Attributes
if (reader.HasAttributes)
{
while (reader.MoveToNextAttribute())
{
ISyndicationAttribute attr = reader.ReadSyndicationAttribute();
if (attr != null)
{
if (type == null && attr.IsAtom(AtomConstants.Type))
{
type = attr.Value;
}
content.AddAttribute(attr);
}
}
reader.MoveToContent();
}
//
// Content
if (!reader.IsEmptyElement)
{
//
// Xml (applies to <content>)
if (XmlUtils.IsXmlMediaType(type) && content.IsAtom(AtomElementNames.Content))
{
if (reader.NodeType != XmlNodeType.Element)
{
throw new FormatException($"Invalid Xml element");
}
content.Value = reader.ReadInnerXml();
}
else
{
reader.ReadStartElement();
//
// Xhtml
if (XmlUtils.IsXhtmlMediaType(type) && content.IsAtom())
{
if (reader.NamespaceURI != AtomConstants.XhtmlNamespace)
{
throw new FormatException($"Invalid Xhtml namespace");
}
content.Value = reader.ReadInnerXml();
}
//
// Text/Html
else if (reader.HasValue)
{
content.Value = reader.ReadContentAsString();
}
//
// Children
else
{
while (reader.IsStartElement())
{
content.AddField(ReadSyndicationContent(reader));
}
}
reader.ReadEndElement(); // end
}
}
else
{
reader.Skip();
}
return(content);
}