public void TestBlank()
{
TextNode one = new TextNode("", "");
TextNode two = new TextNode(" ", "");
TextNode three = new TextNode(" \n\n ", "");
TextNode four = new TextNode("Hello", "");
TextNode five = new TextNode(" \nHello ", "");
Assert.IsTrue(one.IsBlank);
Assert.IsTrue(two.IsBlank);
Assert.IsTrue(three.IsBlank);
Assert.IsFalse(four.IsBlank);
Assert.IsFalse(five.IsBlank);
}
internal void Insert(Token.Character characterToken)
{
Node node = new TextNode(characterToken.GetData(), baseUri);
InsertNode(node);
}
/// <summary>
/// Create and prepend a new TextNode to this element.
/// </summary>
/// <param name="text">the unencoded text to add</param>
/// <returns>this element</returns>
public Element PrependText(string text)
{
TextNode node = new TextNode(text, BaseUri);
PrependChild(node);
return this;
}
private static void AppendNormalisedText(StringBuilder accum, TextNode textNode)
{
string text = textNode.WholeText;
if (PreserveWhitespace(textNode.Parent))
{
accum.Append(text);
}
else
{
StringUtil.AppendNormalisedWhitespace(accum, text, TextNode.LastCharIsWhitespace(accum));
}
}
internal void Insert(Token.Character characterToken)
{
Node node;
// characters in script and style go in as datanodes, not text nodes
string tagName = CurrentElement().TagName;
if (tagName.Equals("script") || tagName.Equals("style"))
{
node = new DataNode(characterToken.GetData(), baseUri);
}
else
{
node = new TextNode(characterToken.GetData(), baseUri);
}
CurrentElement().AppendChild(node);
}
public void Head(Node source, int depth)
{
if (source is Element)
{
Element sourceEl = (Element)source;
if (this._enclosing.whitelist.IsSafeTag(sourceEl.TagName))
{
// safe, clone and copy safe attrs
Cleaner.ElementMeta meta = this._enclosing.CreateSafeElement(sourceEl);
Element destChild = meta.el;
this.destination.AppendChild(destChild);
this.numDiscarded += meta.numAttribsDiscarded;
this.destination = destChild;
}
else
{
if (source != this.root)
{
// not a safe tag, so don't add. don't count root against discarded.
this.numDiscarded++;
}
}
}
else
{
if (source is TextNode)
{
TextNode sourceText = (TextNode)source;
TextNode destText = new TextNode(sourceText.WholeText, source.BaseUri);
this.destination.AppendChild(destText);
}
else
{
if (source is DataNode && this._enclosing.whitelist.IsSafeTag(source.Parent.NodeName))
{
DataNode sourceData = (DataNode)source;
DataNode destData = new DataNode(sourceData.WholeData, source.BaseUri);
this.destination.AppendChild(destData);
}
else
{
// else, we don't care about comments, xml proc instructions, etc
this.numDiscarded++;
}
}
}
}
