public override bool Process(Token t, TreeBuilder tb)
{
if (t.IsCharacter())
{
tb.NewPendingTableCharacters();
tb.MarkInsertionMode();
tb.Transition(InTableText);
return tb.Process(t);
}
else if (t.IsComment())
{
tb.Insert(t.AsComment());
}
else if (t.IsDoctype())
{
tb.Error(this);
return false;
}
else if (t.IsStartTag())
{
Token.StartTag startTag = t.AsStartTag();
string name = startTag.Name();
if (name.Equals("caption"))
{
tb.ClearStackToTableContext();
tb.InsertMarkerToFormattingElements();
tb.Insert(startTag);
tb.Transition(InCaption);
}
else if (name.Equals("colgroup"))
{
tb.ClearStackToTableContext();
tb.Insert(startTag);
tb.Transition(InColumnGroup);
}
else if (name.Equals("col"))
{
tb.Process(new Token.StartTag("colgroup"));
return tb.Process(t);
}
else if (StringUtil.In(name, "tbody", "tfoot", "thead"))
{
tb.ClearStackToTableContext();
tb.Insert(startTag);
tb.Transition(InTableBody);
}
else if (StringUtil.In(name, "td", "th", "tr"))
{
tb.Process(new Token.StartTag("tbody"));
return tb.Process(t);
}
else if (name.Equals("table"))
{
tb.Error(this);
bool processed = tb.Process(new Token.EndTag("table"));
if (processed) // only ignored if in fragment
{
return tb.Process(t);
}
}
else if (StringUtil.In(name, "style", "script"))
{
return tb.Process(t, InHead);
}
else if (name.Equals("input"))
{
if (!startTag.Attributes["type"].Equals("hidden", StringComparison.InvariantCultureIgnoreCase))
{
return AnythingElse(t, tb);
}
else
{
tb.InsertEmpty(startTag);
}
}
else if (name.Equals("form"))
{
tb.Error(this);
if (tb.FormElement != null)
return false;
else
{
Element form = tb.InsertEmpty(startTag);
tb.FormElement = form;
}
}
else
{
return AnythingElse(t, tb);
}
}
else if (t.IsEndTag())
{
Token.EndTag endTag = t.AsEndTag();
string name = endTag.Name();
if (name.Equals("table"))
{
if (!tb.InTableScope(name))
{
tb.Error(this);
return false;
}
else
{
tb.PopStackToClose("table");
}
tb.ResetInsertionMode();
}
else if (StringUtil.In(name,
"body", "caption", "col", "colgroup", "html", "tbody", "td", "tfoot", "th", "thead", "tr"))
{
tb.Error(this);
return false;
}
else
{
return AnythingElse(t, tb);
}
}
else if (t.IsEOF())
{
if (tb.CurrentElement.NodeName.Equals("html"))
tb.Error(this);
return true; // stops parsing
}
return AnythingElse(t, tb);
}
protected bool IsWhitespace(Token t)
{
if (t.IsCharacter())
{
string data = t.AsCharacter().Data.ToString();
// todo: this checks more than spec - "\t", "\n", "\f", "\r", " "
for (int i = 0; i < data.Length; i++)
{
char c = data[i];
if (!char.IsWhiteSpace(c))
{
return false;
}
}
return true;
}
return false;
}
// in script, style etc. normally treated as data tags
public override bool Process(Token t, TreeBuilder tb)
{
if (t.IsCharacter())
{
tb.Insert(t.AsCharacter());
}
else if (t.IsEOF())
{
tb.Error(this);
// if current node is script: already started
tb.Pop();
tb.Transition(tb.OriginalState);
return tb.Process(t);
}
else if (t.IsEndTag())
{
// if: An end tag whose tag name is "script" -- scripting nesting level, if evaluating scripts
tb.Pop();
tb.Transition(tb.OriginalState);
}
return true;
}
