private void OnStartTagClose(object sender, HtmlParserCloseTagEventArgs e)
{
// e.Token contain Token with range for > or /> if well formed
// or IsGhost is set to true otherwise
Debug.Assert(_currentElementRecord != null);
// Close start tag of the current element and push element
// on the stack if element is not self-closing (or self-closed via />).
ElementNode currentElement = _currentElementRecord.Element;
ReadOnlyCollection <AttributeNode> attributes = AttributeNode.EmptyCollection;
if (_currentElementRecord.StartTagAttributes.Count > 0)
{
attributes = new ReadOnlyCollection <AttributeNode>(_currentElementRecord.StartTagAttributes);
}
if (currentElement.StartTag.NameToken == null ||
currentElement.Name.Equals("!doctype", StringComparison.OrdinalIgnoreCase))
{
currentElement.StartTag.Complete(attributes, e.CloseAngleBracket, e.IsClosed, e.IsShorthand, true);
currentElement.CompleteElement(e.CloseAngleBracket, e.IsClosed,
ElementNode.EmptyCollection,
attributes,
AttributeNode.EmptyCollection);
}
else
{
// Check if element is self-closing by calling URI info provider for a given namespace.
bool selfClosing = false;
NameToken nameToken = currentElement.StartTag.NameToken;
if (nameToken != null)
{
selfClosing = _tree.HtmlClosureProvider.IsSelfClosing(_tree.Text, nameToken.PrefixRange, nameToken.NameRange);
}
currentElement.StartTag.Complete(attributes, e.CloseAngleBracket, e.IsClosed, e.IsShorthand, selfClosing);
currentElement.CompleteElement(e.CloseAngleBracket, e.IsClosed,
ElementNode.EmptyCollection,
attributes,
AttributeNode.EmptyCollection);
if (!selfClosing && !e.IsShorthand)
{
_elementStack.Push(_currentElementRecord);
}
}
_currentElementRecord = null;
}
private void OnEndTagClose(object sender, HtmlParserCloseTagEventArgs e)
{
if (_currentElementRecord != null)
{
ElementNode element = _currentElementRecord.Element;
ReadOnlyCollection <ElementNode> children = ElementNode.EmptyCollection;
if (_currentElementRecord.Children.Count > 0)
{
children = new ReadOnlyCollection <ElementNode>(_currentElementRecord.Children);
}
ReadOnlyCollection <AttributeNode> startTagAttributes = AttributeNode.EmptyCollection;
if (_currentElementRecord.StartTagAttributes.Count > 0)
{
startTagAttributes = new ReadOnlyCollection <AttributeNode>(_currentElementRecord.StartTagAttributes);
}
ReadOnlyCollection <AttributeNode> endTagAttributes = AttributeNode.EmptyCollection;
if (_currentElementRecord.EndTagAttributes.Count > 0)
{
endTagAttributes = new ReadOnlyCollection <AttributeNode>(_currentElementRecord.EndTagAttributes);
}
element.EndTag.Complete(endTagAttributes, e.CloseAngleBracket, e.IsClosed, false, false);
element.CompleteElement(e.CloseAngleBracket, true, children, startTagAttributes, endTagAttributes);
_currentElementRecord = null;
}
CloseOrphanedEndTag(e.CloseAngleBracket, e.IsClosed);
}
private void OnParseEnd(object sender, HtmlParserRangeEventArgs e)
{
// Collect all orphaned end tags since they belong to the currently
//
CloseOrphanedEndTag(new TextRange(e.Range.End, 0), false);
// Close all element that are still on the stack
while (_elementStack.Count > 0)
{
ElementRecord elementRecord = _elementStack.Pop();
ElementNode element = elementRecord.Element;
ReadOnlyCollection <ElementNode> children = ElementNode.EmptyCollection;
if (elementRecord.Children.Count > 0)
{
children = new ReadOnlyCollection <ElementNode>(elementRecord.Children);
}
ReadOnlyCollection <AttributeNode> startTagAttributes = AttributeNode.EmptyCollection;
if (elementRecord.StartTagAttributes.Count > 0)
{
startTagAttributes = new ReadOnlyCollection <AttributeNode>(elementRecord.StartTagAttributes);
}
ReadOnlyCollection <AttributeNode> endTagAttributes = AttributeNode.EmptyCollection;
if (elementRecord.EndTagAttributes.Count > 0)
{
endTagAttributes = new ReadOnlyCollection <AttributeNode>(elementRecord.EndTagAttributes);
}
element.CompleteElement(TextRange.FromBounds(e.Range.End, e.Range.End), false, children, startTagAttributes, endTagAttributes);
}
_tree.RootNode = _rootNodeRecord.Element as RootNode;
_rootNodeRecord = null;
_tree.CommentCollection.Sort();
var parser = sender as HtmlParser;
_tree.DocType = parser.DocType;
TreeBuildingTime = DateTime.UtcNow - _startTime;
}
private ElementRecord CloseElements(ITextRange nameRange, int position, string[] containerNames)
{
ElementRecord last = null;
int count = 0;
bool foundSameElement = false;
bool foundContainer = false;
bool testImplicitClosureWalkingUp = (containerNames.Length > 0);
bool foundImplicitlyClosedElement = false;
string name = _tree.Text.GetText(nameRange);
// Dev12 764293: Match end tags regardless of parsing mode, and let validation ensure the casing.
// var comparison = Parser.ParsingMode == ParsingMode.Html ? StringComparison.OrdinalIgnoreCase : StringComparison.Ordinal;
var comparison = StringComparison.OrdinalIgnoreCase;
// Walk up the stack looking for element name but stop at possible container
// so we don't close outer <li> by inner <li> in <ol><li><ol><li> and rather
// stop at the nearest <ol> which is a 'hard' container for <li>.
foreach (var elementRecord in _elementStack)
{
ITextRange qualifiedNameRange = elementRecord.Element.QualifiedNameRange;
string qualifiedName = _tree.Text.GetText(qualifiedNameRange);
if (String.Compare(qualifiedName, name, comparison) == 0)
{
foundSameElement = true;
count++; // Ensure we close the element with the same name
break;
}
foreach (var containerName in containerNames)
{
if (String.Compare(qualifiedName, containerName, comparison) == 0)
{
foundContainer = true;
break;
}
}
if (foundContainer)
{
break;
}
if (testImplicitClosureWalkingUp && !foundImplicitlyClosedElement)
{
string[] containerNamesCurrentElement;
if (!String.IsNullOrEmpty(qualifiedName) && _tree.HtmlClosureProvider.IsImplicitlyClosed(_tree.Text, qualifiedNameRange, out containerNamesCurrentElement))
{
foundImplicitlyClosedElement = true;
}
}
count++;
}
if (foundSameElement || (foundImplicitlyClosedElement && foundContainer))
{
for (int i = 0; i < count; i++)
{
last = _elementStack.Pop();
ElementNode element = last.Element;
ReadOnlyCollection <ElementNode> children = ElementNode.EmptyCollection;
if (last.Children.Count > 0)
{
children = new ReadOnlyCollection <ElementNode>(last.Children);
}
ReadOnlyCollection <AttributeNode> startTagAttributes = AttributeNode.EmptyCollection;
if (last.StartTagAttributes.Count > 0)
{
startTagAttributes = new ReadOnlyCollection <AttributeNode>(last.StartTagAttributes);
}
ReadOnlyCollection <AttributeNode> endTagAttributes = AttributeNode.EmptyCollection;
if (last.EndTagAttributes.Count > 0)
{
endTagAttributes = new ReadOnlyCollection <AttributeNode>(last.EndTagAttributes);
}
element.CompleteElement(TextRange.FromBounds(position, position), true, children, startTagAttributes, endTagAttributes);
}
}
return(last);
}