private static XNode CreateXNode(GumboNode node)
{
switch (node.type)
{
case GumboNodeType.GUMBO_NODE_DOCUMENT:
var docNode = (GumboDocumentNode)node;
return new XDocument(docNode.GetChildren().Select(x => CreateXNode(x)));
case GumboNodeType.GUMBO_NODE_ELEMENT:
case GumboNodeType.GUMBO_NODE_TEMPLATE:
var elementNode = (GumboElementNode)node;
string elementName = GetName(elementNode.element.tag);
var attributes = elementNode.GetAttributes().Select(x => new XAttribute(
NativeUtf8Helper.StringFromNativeUtf8(x.name),
NativeUtf8Helper.StringFromNativeUtf8(x.value)));
var children = elementNode.GetChildren().Select(x => CreateXNode(x));
return new XElement(elementName, attributes, children);
case GumboNodeType.GUMBO_NODE_TEXT:
var textNode = (GumboTextNode)node;
return new XText(NativeUtf8Helper.StringFromNativeUtf8(textNode.text.text));
case GumboNodeType.GUMBO_NODE_CDATA:
var cDataNode = (GumboTextNode)node;
return new XCData(NativeUtf8Helper.StringFromNativeUtf8(cDataNode.text.text));
case GumboNodeType.GUMBO_NODE_COMMENT:
var commentNode = (GumboTextNode)node;
return new XComment(NativeUtf8Helper.StringFromNativeUtf8(commentNode.text.text));
case GumboNodeType.GUMBO_NODE_WHITESPACE:
var spaceNode = (GumboTextNode)node;
return new XText(NativeUtf8Helper.StringFromNativeUtf8(spaceNode.text.text));
default:
throw new NotImplementedException($"Node type '{node.type}' is not implemented");
}
}
public NodeWrapper(GumboNode node, NodeWrapper parent)
{
Type = node.type;
Index = (int)node.index_within_parent;
ParseFlags = node.parse_flags;
Parent = parent;
}
public NodeWrapper CreateNodeWrapper(GumboNode node, NodeWrapper parent = null)
{
switch (node.type)
{
case GumboNodeType.GUMBO_NODE_DOCUMENT:
return(new DocumentWrapper((GumboDocumentNode)node, this));
case GumboNodeType.GUMBO_NODE_ELEMENT:
case GumboNodeType.GUMBO_NODE_TEMPLATE:
return(new ElementWrapper((GumboElementNode)node, parent, this));
case GumboNodeType.GUMBO_NODE_TEXT:
case GumboNodeType.GUMBO_NODE_CDATA:
case GumboNodeType.GUMBO_NODE_COMMENT:
case GumboNodeType.GUMBO_NODE_WHITESPACE:
return(new TextWrapper((GumboTextNode)node, parent));
default:
throw new NotImplementedException($"Node type '{node.type}' is not implemented");
}
}
/// <summary>
/// Dealing with C unions, we need a two-step marshalling to get the actual instance.
/// </summary>
/// <param name="nodePointer"></param>
/// <returns></returns>
private static GumboNode MarshalToSpecificNode(IntPtr nodePointer)
{
GumboNode node = (GumboNode)Marshal.PtrToStructure(nodePointer, typeof(GumboNode));
switch (node.type)
{
case GumboNodeType.GUMBO_NODE_DOCUMENT:
return(MarshalTo <GumboDocumentNode>(nodePointer));
case GumboNodeType.GUMBO_NODE_ELEMENT:
return(MarshalTo <GumboElementNode>(nodePointer));
case GumboNodeType.GUMBO_NODE_TEXT:
case GumboNodeType.GUMBO_NODE_CDATA:
case GumboNodeType.GUMBO_NODE_COMMENT:
case GumboNodeType.GUMBO_NODE_WHITESPACE:
return(MarshalTo <GumboTextNode>(nodePointer));
default:
throw new NotSupportedException(String.Format("Unknown node type '{0}'", (int)node.type));
}
}
private static XNode CreateXNode(GumboNode node)
{
switch (node.type)
{
case GumboNodeType.GUMBO_NODE_DOCUMENT:
var docNode = (GumboDocumentNode)node;
return(new XDocument(docNode.GetChildren().Select(x => CreateXNode(x))));
case GumboNodeType.GUMBO_NODE_ELEMENT:
case GumboNodeType.GUMBO_NODE_TEMPLATE:
var elementNode = (GumboElementNode)node;
string elementName = GetName(elementNode.element.tag);
var attributes = elementNode.GetAttributes().Select(x => new XAttribute(
NativeUtf8Helper.StringFromNativeUtf8(x.name),
NativeUtf8Helper.StringFromNativeUtf8(x.value)));
var children = elementNode.GetChildren().Select(x => CreateXNode(x));
return(new XElement(elementName, attributes, children));
case GumboNodeType.GUMBO_NODE_TEXT:
var textNode = (GumboTextNode)node;
return(new XText(NativeUtf8Helper.StringFromNativeUtf8(textNode.text.text)));
case GumboNodeType.GUMBO_NODE_CDATA:
var cDataNode = (GumboTextNode)node;
return(new XCData(NativeUtf8Helper.StringFromNativeUtf8(cDataNode.text.text)));
case GumboNodeType.GUMBO_NODE_COMMENT:
var commentNode = (GumboTextNode)node;
return(new XComment(NativeUtf8Helper.StringFromNativeUtf8(commentNode.text.text)));
case GumboNodeType.GUMBO_NODE_WHITESPACE:
var spaceNode = (GumboTextNode)node;
return(new XText(NativeUtf8Helper.StringFromNativeUtf8(spaceNode.text.text)));
default:
throw new NotImplementedException($"Node type '{node.type}' is not implemented");
}
}
public NodeWrapper(GumboNode node, NodeWrapper parent)
{
Type = node.type;
ParseFlags = node.parse_flags;
Parent = parent;
}
public NodeWrapper(GumboNode node, NodeWrapper parent)
{
Type = node.type;
ParseFlags = node.parse_flags;
Parent = parent;
}
