public void AddChildNode(MarkdownNode childNode)
{
this.childNodes.Add(childNode);
}
private MarkdownNode GetNextNode()
{
if (_ungotNode != null)
{
_ungotNode = null;
return _rootEnumerator.Current;
}
if (_rootEnumerator.MoveNext())
{
return _rootEnumerator.Current;
}
return null;
}
/// <summary>
///
/// </summary>
/// <param name="node"></param>
/// <param name="level"></param>
/// <returns>
/// return headingNode if expected heading level encounterd.
/// null, if higher level encountered.
/// throw exception, if unexpected node encountered.
/// </returns>
private HeadingNode GetHeadingWithExpectedLevel(MarkdownNode node, int level)
{
if (node == null)
{
return null;
}
// check for appropriate header
if (node.NodeType != MarkdownNodeType.Heading)
{
throw new HelpSchemaException(GetExtent(node), "Expect Heading");
}
var headingNode = node as HeadingNode;
if (headingNode.HeadingLevel < level)
{
UngetNode(node);
return null;
}
if (headingNode.HeadingLevel != level)
{
throw new HelpSchemaException(headingNode.SourceExtent, "Expect Heading level " + level);
}
return headingNode;
}
private SourceExtent GetExtent(MarkdownNode node)
{
TextNode textNode = node as TextNode;
if (textNode != null)
{
return textNode.SourceExtent;
}
ParagraphNode paragraphNode = node as ParagraphNode;
if (paragraphNode != null && paragraphNode.Spans.Any())
{
return paragraphNode.Spans.First().SourceExtent;
}
return new SourceExtent("", 0, 0, 0, 0);
}
private void UngetNode(MarkdownNode node)
{
if (_ungotNode != null)
{
throw new ArgumentException("Cannot ungot token, already ungot one");
}
_ungotNode = node;
}
public void AddChildNode(MarkdownNode childNode)
{
this.childNodes.Add(childNode);
}
