private void LoadReader(Sgml.SgmlReader reader)
{
while (reader.Read())
{
switch (reader.NodeType)
{
case System.Xml.XmlNodeType.Element:
HandleElementStart(reader);
break;
case System.Xml.XmlNodeType.EndElement:
HandleElementEnd(reader);
break;
case System.Xml.XmlNodeType.Text:
HandleText(reader);
break;
}
}
}
private XmlDocument XmlFromSgml(TextReader textReader)
{
Stack <string> stack = new Stack <string>();
TextWriter logWriter = new StringWriter();
try
{
Sgml.SgmlReader reader = new Sgml.SgmlReader();
reader.DocType = "HTML";
reader.WhitespaceHandling = WhitespaceHandling.All;
reader.CaseFolding = Sgml.CaseFolding.ToLower;
reader.InputStream = textReader;
reader.ErrorLog = logWriter;
StringWriter writer = new StringWriter();
XmlWriter xmlWriter = null;
try
{
xmlWriter = new XmlTextWriter(writer);
bool rootElement = true;
string lastElementName = "";
while ((reader.Read()) && !reader.EOF)
{
switch (reader.NodeType)
{
case XmlNodeType.Element:
try
{
xmlWriter.WriteStartElement(reader.LocalName);
xmlWriter.WriteAttributes(reader, true);
if (reader.IsEmptyElement)
{
xmlWriter.WriteEndElement();
lastElementName = "";
}
else
{
lastElementName = reader.LocalName;
}
}
catch (Exception exc)
{
logger.LogError(exc, lastElementName);
}
break;
case XmlNodeType.Text:
if (string.IsNullOrEmpty(lastElementName))
{
string text = reader.Value;
xmlWriter.WriteString(text);
}
else
{
if (rootElement)
{
rootElement = false;
stack.Push(".");
}
else
{
xmlWriter.WriteElementString("value", reader.Value);
xmlWriter.WriteEndElement();
stack.Push(lastElementName);
}
lastElementName = "";
}
break;
case XmlNodeType.EndElement:
if (stack.Peek() == reader.LocalName)
{
stack.Pop();
break;
}
logger.LogTrace(reader.LocalName);
try
{
xmlWriter.WriteEndElement();
lastElementName = "";
}
catch (Exception exc)
{
logger.LogError(exc, lastElementName);
}
break;
}
}
}
finally
{
if (xmlWriter != null)
{
xmlWriter.Close();
}
}
string xml = writer.ToString();
XmlDocument doc = new XmlDocument();
doc.PreserveWhitespace = true;
doc.LoadXml(xml);
return(doc);
}
finally
{
string str = logWriter.ToString();
if (string.IsNullOrEmpty(str))
{
logger.LogError(str);
}
logWriter.Dispose();
}
}
