/// <summary> Get the next node.</summary>
/// <returns> The next node in the HTML stream, or null if there are no more nodes.
/// </returns>
/// <exception cref="ParserException">If an unrecoverable error occurs.
/// </exception>
public virtual INode NextNode()
{
ITag tag;
IScanner scanner;
NodeList stack;
INode ret;
try
{
ret = mLexer.NextNode();
if (null != ret)
{
// kick off recursion for the top level node
if (ret is ITag)
{
tag = (ITag)ret;
if (!tag.IsEndTag())
{
// now recurse if there is a scanner for this type of tag
scanner = tag.ThisScanner;
if (null != scanner)
{
stack = new NodeList();
ret = scanner.Scan(tag, mLexer, stack);
}
}
}
}
}
catch (ParserException pe)
{
throw pe; // no need to wrap an existing ParserException
}
catch (System.Exception e)
{
System.Text.StringBuilder msgBuffer = new System.Text.StringBuilder();
msgBuffer.Append("Unexpected Exception occurred while reading ");
msgBuffer.Append(mLexer.Page.Url);
msgBuffer.Append(", in nextNode");
// TODO: appendLineDetails (msgBuffer);
ParserException ex = new ParserException(msgBuffer.ToString(), e);
mFeedback.Error(msgBuffer.ToString(), ex);
throw ex;
}
return(ret);
}
/// <summary>
///
/// </summary>
/// <param name="message"></param>
/// <param name="e"></param>
public static void Error(System.String message, ParserException e)
{
g_Callback.Error(message, e);
}
