public override bool Process(Token t, HtmlTreeBuilder tb)
{
if (t.IsStartTag && StringSet.Create("caption table tbody tfoot thead tr td th").Contains(t.AsStartTag().Name))
{
tb.Error(this);
tb.Process(new Token.EndTag("select"));
return(tb.Process(t));
}
else if (t.IsEndTag && StringSet.Create("caption table tbody tfoot thead tr td th").Contains(t.AsEndTag().Name))
{
tb.Error(this);
if (tb.InTableScope(t.AsEndTag().Name))
{
tb.Process(new Token.EndTag("select"));
return(tb.Process(t));
}
else
{
return(false);
}
}
else
{
return(tb.Process(t, InSelect));
}
}
public override bool Process(Token t, HtmlTreeBuilder tb)
{
if (t.IsComment)
{
tb.Insert(t.AsComment());
}
else if (t.IsDoctype || IsWhitespace(t) ||
(t.IsStartTag && t.AsStartTag().Name.Equals("html")))
{
return(tb.Process(t, InBody));
}
else if (t.IsEOF)
{
// nice work chuck
}
else if (t.IsStartTag && t.AsStartTag().Name.Equals("noframes"))
{
return(tb.Process(t, InHead));
}
else
{
tb.Error(this);
return(false);
}
return(true);
}
private void CloseCell(HtmlTreeBuilder tb)
{
if (tb.InTableScope("td"))
{
tb.Process(new Token.EndTag("td"));
}
else
{
tb.Process(new Token.EndTag("th")); // only here if th or td in scope
}
}
public override bool Process(Token t, HtmlTreeBuilder tb)
{
switch (t.Type)
{
case TokenType.Character:
Token.Character c = t.AsCharacter();
if (c.Data.Equals(NullString))
{
tb.Error(this);
return(false);
}
else
{
tb.GetPendingTableCharacters().Add(c);
}
break;
default:
if (tb.GetPendingTableCharacters().Count > 0)
{
foreach (Token.Character char2 in tb.GetPendingTableCharacters())
{
if (!IsWhitespace(char2))
{
// InTable anything else section:
tb.Error(this);
if (StringUtil.In(tb.CurrentElement.NodeName, "table", "tbody", "tfoot", "thead", "tr"))
{
tb.SetFosterInserts(true);
tb.Process(char2, InBody);
tb.SetFosterInserts(false);
}
else
{
tb.Process(char2, InBody);
}
}
else
{
tb.Insert(char2);
}
}
tb.NewPendingTableCharacters();
}
tb.Transition(tb.OriginalState);
return(tb.Process(t));
}
return(true);
}
public override bool Process(Token t, HtmlTreeBuilder tb)
{
if (t.IsEndTag && t.AsEndTag().Name.Equals("caption"))
{
Token.EndTag endTag = t.AsEndTag();
string name = endTag.Name;
if (!tb.InTableScope(name))
{
tb.Error(this);
return(false);
}
else
{
tb.GenerateImpliedEndTags();
if (!tb.CurrentElement.NodeName.Equals("caption"))
{
tb.Error(this);
}
tb.PopStackToClose("caption");
tb.ClearFormattingElementsToLastMarker();
tb.Transition(InTable);
}
}
else if ((t.IsStartTag &&
StringSet.Create("caption col colgroup tbody td tfoot th thead tr").Contains(t.AsStartTag().Name) ||
t.IsEndTag && t.AsEndTag().Name.Equals("table"))
)
{
tb.Error(this);
bool processed = tb.Process(new Token.EndTag("caption"));
if (processed)
{
return(tb.Process(t));
}
}
else if (t.IsEndTag && StringSet.Create("body col colgroup html tbody td tfoot th thead tr").Contains(t.AsEndTag().Name))
{
tb.Error(this);
return(false);
}
else
{
return(tb.Process(t, InBody));
}
return(true);
}
private bool ExitTableBody(Token t, HtmlTreeBuilder tb)
{
if (!(tb.InTableScope("tbody") ||
tb.InTableScope("thead") ||
tb.InScope("tfoot")))
{
// frag case
tb.Error(this);
return(false);
}
tb.ClearStackToTableBodyContext();
tb.Process(new Token.EndTag(tb.CurrentElement.NodeName)); // tbody, tfoot, thead
return(tb.Process(t));
}
public override bool Process(Token t, HtmlTreeBuilder tb)
{
if (IsWhitespace(t))
{
return(true);
}
else if (t.IsComment)
{
tb.Insert(t.AsComment());
}
else if (t.IsDoctype)
{
tb.Error(this);
return(false);
}
else if (t.IsStartTag &&
t.AsStartTag().Name.Equals("html"))
{
return(InBody.Process(t, tb)); // does not transition
}
else if (t.IsStartTag &&
t.AsStartTag().Name.Equals("head"))
{
HtmlElement head = tb.Insert(t.AsStartTag());
tb.HeadElement = head;
tb.Transition(InHead);
}
else if (t.IsEndTag && (StringUtil.In(t.AsEndTag().Name, "head", "body", "html", "br")))
{
tb.Process(new Token.StartTag("head"));
return(tb.Process(t));
}
else if (t.IsEndTag)
{
tb.Error(this);
return(false);
}
else
{
tb.Process(new Token.StartTag("head"));
return(tb.Process(t));
}
return(true);
}
public override bool Process(Token t, HtmlTreeBuilder tb)
{
if (IsWhitespace(t))
{
return(tb.Process(t, InBody));
}
else if (t.IsComment)
{
tb.Insert(t.AsComment()); // into html node
}
else if (t.IsDoctype)
{
tb.Error(this);
return(false);
}
else if (t.IsStartTag && t.AsStartTag().Name.Equals("html"))
{
return(tb.Process(t, InBody));
}
else if (t.IsEndTag && t.AsEndTag().Name.Equals("html"))
{
if (tb.IsFragmentParsing())
{
tb.Error(this);
return(false);
}
else
{
tb.Transition(AfterAfterBody);
}
}
else if (t.IsEOF)
{
// chillax! we're done
}
else
{
tb.Error(this);
tb.Transition(InBody);
return(tb.Process(t));
}
return(true);
}
private bool AnythingElse(Token t, HtmlTreeBuilder tb)
{
tb.Error(this);
bool processed = true;
if (StringUtil.In(tb.CurrentElement.NodeName,
"table", "tbody", "tfoot", "thead", "tr"))
{
tb.SetFosterInserts(true);
processed = tb.Process(t, InBody);
tb.SetFosterInserts(false);
}
else
{
processed = tb.Process(t, InBody);
}
return(processed);
}
public override bool Process(Token t, HtmlTreeBuilder tb)
{
if (t.IsDoctype)
{
tb.Error(this);
}
else if (t.IsStartTag && t.AsStartTag().Name.Equals("html"))
{
return(tb.Process(t, InBody));
}
else if (t.IsEndTag && t.AsEndTag().Name.Equals("noscript"))
{
tb.Pop();
tb.Transition(InHead);
}
else if (IsWhitespace(t) ||
t.IsComment ||
(t.IsStartTag && StringSet.Create("basefont bgsound link meta noframes style").Contains(t.AsStartTag().Name)))
{
return(tb.Process(t, InHead));
}
else if (t.IsEndTag && t.AsEndTag().Name.Equals("br"))
{
return(anythingElse(t, tb));
}
else if ((t.IsStartTag && StringUtil.In(t.AsStartTag().Name, "head", "noscript")) || t.IsEndTag)
{
tb.Error(this);
return(false);
}
else
{
return(anythingElse(t, tb));
}
return(true);
}
public override bool Process(Token t, HtmlTreeBuilder tb)
{
if (IsWhitespace(t))
{
return(true); // ignore whitespace
}
else if (t.IsComment)
{
tb.Insert(t.AsComment());
}
else if (t.IsDoctype)
{
// TODO: parse error check on expected doctypes
// TODO: quirk state check on doctype ids
Token.Doctype d = t.AsDoctype();
var doctype = tb.Document.CreateDocumentType(
d.Name,
d.PublicIdentifier,
d.SystemIdentifier
);
doctype.BaseUri = tb.BaseUri;
tb.Document.Append(doctype);
if (d.ForceQuirks)
{
tb.Document.QuirksMode = QuirksMode.Quirks;
}
tb.Transition(BeforeHtml);
}
else
{
// TODO: check not iframe srcdoc
tb.Transition(BeforeHtml);
return(tb.Process(t)); // re-process token
}
return(true);
}
// in script, style etc. normally treated as data tags
public override bool Process(Token t, HtmlTreeBuilder 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);
}
public override bool Process(Token t, HtmlTreeBuilder tb)
{
switch (t.Type)
{
case TokenType.Character:
Token.Character c = t.AsCharacter();
if (c.Data.Equals(NullString))
{
tb.Error(this);
return(false);
}
else
{
tb.Insert(c);
}
break;
case TokenType.Comment:
tb.Insert(t.AsComment());
break;
case TokenType.Doctype:
tb.Error(this);
return(false);
case TokenType.StartTag:
Token.StartTag start = t.AsStartTag();
string name = start.Name;
if (name.Equals("html"))
{
return(tb.Process(start, InBody));
}
else if (name.Equals("option"))
{
tb.Process(new Token.EndTag("option"));
tb.Insert(start);
}
else if (name.Equals("optgroup"))
{
if (tb.CurrentElement.NodeName.Equals("option"))
{
tb.Process(new Token.EndTag("option"));
}
else if (tb.CurrentElement.NodeName.Equals("optgroup"))
{
tb.Process(new Token.EndTag("optgroup"));
}
tb.Insert(start);
}
else if (name.Equals("select"))
{
tb.Error(this);
return(tb.Process(new Token.EndTag("select")));
}
else if (StringUtil.In(name, "input", "keygen", "textarea"))
{
tb.Error(this);
if (!tb.InSelectScope("select"))
{
return(false); // frag
}
tb.Process(new Token.EndTag("select"));
return(tb.Process(start));
}
else if (name.Equals("script"))
{
return(tb.Process(t, InHead));
}
else
{
return(AnythingElse(t, tb));
}
break;
case TokenType.EndTag:
Token.EndTag end = t.AsEndTag();
name = end.Name;
if (name.Equals("optgroup"))
{
if (tb.CurrentElement.NodeName.Equals("option") &&
tb.AboveOnStack(tb.CurrentElement) != null &&
tb.AboveOnStack(tb.CurrentElement).NodeName.Equals("optgroup"))
{
tb.Process(new Token.EndTag("option"));
}
if (tb.CurrentElement.NodeName.Equals("optgroup"))
{
tb.Pop();
}
else
{
tb.Error(this);
}
}
else if (name.Equals("option"))
{
if (tb.CurrentElement.NodeName.Equals("option"))
{
tb.Pop();
}
else
{
tb.Error(this);
}
}
else if (name.Equals("select"))
{
if (!tb.InSelectScope(name))
{
tb.Error(this);
return(false);
}
else
{
tb.PopStackToClose(name);
tb.ResetInsertionMode();
}
}
else
{
return(AnythingElse(t, tb));
}
break;
case TokenType.EOF:
if (!tb.CurrentElement.NodeName.Equals("html"))
{
tb.Error(this);
}
break;
default:
return(AnythingElse(t, tb));
}
return(true);
}
private bool AnythingElse(Token t, HtmlTreeBuilder tb)
{
tb.Insert("html");
tb.Transition(BeforeHead);
return(tb.Process(t));
}
public override bool Process(Token t, HtmlTreeBuilder tb)
{
switch (t.Type)
{
case TokenType.StartTag:
Token.StartTag startTag = t.AsStartTag();
string name = startTag.Name;
if (name.Equals("tr"))
{
tb.ClearStackToTableBodyContext();
tb.Insert(startTag);
tb.Transition(InRow);
}
else if (StringUtil.In(name, "th", "td"))
{
tb.Error(this);
tb.Process(new Token.StartTag("tr"));
return(tb.Process(startTag));
}
else if (StringSet.Create("caption col colgroup tbody tfoot thead").Contains(name))
{
return(ExitTableBody(t, tb));
}
else
{
return(AnythingElse(t, tb));
}
break;
case TokenType.EndTag:
Token.EndTag endTag = t.AsEndTag();
name = endTag.Name;
if (StringUtil.In(name, "tbody", "tfoot", "thead"))
{
if (!tb.InTableScope(name))
{
tb.Error(this);
return(false);
}
else
{
tb.ClearStackToTableBodyContext();
tb.Pop();
tb.Transition(InTable);
}
}
else if (name.Equals("table"))
{
return(ExitTableBody(t, tb));
}
else if (StringSet.Create("body caption col colgroup html td th tr").Contains(name))
{
tb.Error(this);
return(false);
}
else
{
return(AnythingElse(t, tb));
}
break;
default:
return(AnythingElse(t, tb));
}
return(true);
}
private bool AnythingElse(Token t, HtmlTreeBuilder tb)
{
return(tb.Process(t, InTable));
}
public override bool Process(Token t, HtmlTreeBuilder tb)
{
if (IsWhitespace(t))
{
tb.Insert(t.AsCharacter());
}
else if (t.IsComment)
{
tb.Insert(t.AsComment());
}
else if (t.IsDoctype)
{
tb.Error(this);
return(false);
}
else if (t.IsStartTag)
{
Token.StartTag start = t.AsStartTag();
switch (start.Name)
{
case "html":
return(tb.Process(start, InBody));
case "frameset":
tb.Insert(start);
break;
case "frame":
tb.InsertEmpty(start);
break;
case "noframes":
return(tb.Process(start, InHead));
default:
tb.Error(this);
return(false);
}
}
else if (t.IsEndTag && t.AsEndTag().Name.Equals("frameset"))
{
if (tb.CurrentElement.NodeName.Equals("html")) // frag
{
tb.Error(this);
return(false);
}
else
{
tb.Pop();
if (!tb.IsFragmentParsing() && !tb.CurrentElement.NodeName.Equals("frameset"))
{
tb.Transition(AfterFrameset);
}
}
}
else if (t.IsEOF)
{
if (!tb.CurrentElement.NodeName.Equals("html"))
{
tb.Error(this);
return(true);
}
}
else
{
tb.Error(this);
return(false);
}
return(true);
}
private bool anythingElse(Token t, HtmlTreeBuilder tb)
{
tb.Error(this);
tb.Process(new Token.EndTag("noscript"));
return(tb.Process(t));
}
public override bool Process(Token t, HtmlTreeBuilder tb)
{
if (IsWhitespace(t))
{
tb.Insert(t.AsCharacter());
return(true);
}
switch (t.Type)
{
case TokenType.Comment:
tb.Insert(t.AsComment());
break;
case TokenType.Doctype:
tb.Error(this);
break;
case TokenType.StartTag:
Token.StartTag startTag = t.AsStartTag();
string name = startTag.Name;
if (name.Equals("html"))
{
return(tb.Process(t, InBody));
}
else if (name.Equals("col"))
{
tb.InsertEmpty(startTag);
}
else
{
return(AnythingElse(t, tb));
}
break;
case TokenType.EndTag:
Token.EndTag endTag = t.AsEndTag();
name = endTag.Name;
if (name.Equals("colgroup"))
{
if (tb.CurrentElement.NodeName.Equals("html")) // frag case
{
tb.Error(this);
return(false);
}
else
{
tb.Pop();
tb.Transition(InTable);
}
}
else
{
return(AnythingElse(t, tb));
}
break;
case TokenType.EOF:
if (tb.CurrentElement.NodeName.Equals("html"))
{
return(true); // stop parsing; frag case
}
else
{
return(AnythingElse(t, tb));
}
default:
return(AnythingElse(t, tb));
}
return(true);
}
public override bool Process(Token t, HtmlTreeBuilder tb)
{
if (t.IsCharacter)
{
tb.NewPendingTableCharacters();
tb.MarkInsertionMode();
tb.Transition(InTableText);
return(tb.Process(t));
}
else if (t.IsComment)
{
tb.Insert(t.AsComment());
return(true);
}
else if (t.IsDoctype)
{
tb.Error(this);
return(false);
}
else if (t.IsStartTag)
{
Token.StartTag startTag = t.AsStartTag();
string name = startTag.Name;
switch (name)
{
case "caption":
tb.ClearStackToTableContext();
tb.InsertMarkerToFormattingElements();
tb.Insert(startTag);
tb.Transition(InCaption);
break;
case "colgroup":
tb.ClearStackToTableContext();
tb.Insert(startTag);
tb.Transition(InColumnGroup);
break;
case "col":
tb.Process(new Token.StartTag("colgroup"));
return(tb.Process(t));
case "table":
tb.Error(this);
bool processed = tb.Process(new Token.EndTag("table"));
if (processed) // only ignored if in fragment
{
return(tb.Process(t));
}
break;
case "tbody":
case "tfoot":
case "thead":
tb.ClearStackToTableContext();
tb.Insert(startTag);
tb.Transition(InTableBody);
break;
case "td":
case "th":
case "tr":
tb.Process(new Token.StartTag("tbody"));
return(tb.Process(t));
case "style":
case "script":
return(tb.Process(t, InHead));
case "input":
if (!startTag.Attributes["type"]
.Equals("hidden", StringComparison.OrdinalIgnoreCase))
{
return(AnythingElse(t, tb));
}
else
{
tb.InsertEmpty(startTag);
}
break;
case "form":
tb.Error(this);
if (tb.FormElement != null)
{
return(false);
}
else
{
HtmlElement form = tb.InsertEmpty(startTag);
tb.FormElement = form;
}
break;
default:
return(AnythingElse(t, tb));
}
}
else if (t.IsEndTag)
{
Token.EndTag endTag = t.AsEndTag();
string name = endTag.Name;
switch (name)
{
case "table":
if (!tb.InTableScope(name))
{
tb.Error(this);
return(false);
}
else
{
tb.PopStackToClose("table");
}
tb.ResetInsertionMode();
break;
case "body":
case "caption":
case "col":
case "colgroup":
case "html":
case "tbody":
case "td":
case "tfoot":
case "th":
case "thead":
case "tr":
tb.Error(this);
return(false);
default:
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));
}
private Nullable <bool> HandleStartTag(Token t, HtmlTreeBuilder tb)
{
Token.StartTag startTag = t.AsStartTag();
string name = startTag.Name;
if (name.Equals("html"))
{
tb.Error(this);
// merge attributes onto real html
var html = tb.Stack.First();
foreach (HtmlAttribute attribute in startTag.Attributes)
{
if (!html.HasAttribute(attribute.Name))
{
html.Attributes.Add(attribute);
}
}
}
else if (StringSet.Create("base basefont bgsound command link meta noframes script style title").Contains(name))
{
return(tb.Process(t, InHead));
}
else if (name.Equals("body"))
{
tb.Error(this);
DescendableLinkedList <DomContainer> stack = tb.Stack;
if (stack.Count == 1 || (stack.Count > 2 && !stack.ElementAt(1).NodeName.Equals("body")))
{
// only in fragment case
return(false); // ignore
}
else
{
tb.FramesetOK = false;
var body = stack.First();
foreach (HtmlAttribute attribute in startTag.Attributes)
{
if (!body.HasAttribute(attribute.Name))
{
body.Attributes.Add(attribute);
}
}
}
}
else if (name.Equals("frameset"))
{
tb.Error(this);
DescendableLinkedList <DomContainer> stack = tb.Stack;
if (stack.Count == 1 || (stack.Count > 2 && !stack.ElementAt(1).NodeName.Equals("body")))
{
// only in fragment case
return(false); // ignore
}
else if (!tb.FramesetOK)
{
return(false); // ignore frameset
}
else
{
var second = stack.ElementAt(1);
if (second.Parent != null)
{
second.Remove();
}
// pop up to html element
while (stack.Count > 1)
{
stack.RemoveLast();
}
tb.Insert(startTag);
tb.Transition(InFrameset);
}
}
else if (StringSet.Create(
@"address article aside blockquote center details dir div dl
fieldset figcaption figure footer header hgroup menu nav ol
p section summary ul").Contains(name))
{
if (tb.InButtonScope("p"))
{
tb.Process(new Token.EndTag("p"));
}
tb.Insert(startTag);
}
else if (HeadingTags.Contains(name))
{
if (tb.InButtonScope("p"))
{
tb.Process(new Token.EndTag("p"));
}
if (HeadingTags.Contains(tb.CurrentElement.NodeName))
{
tb.Error(this);
tb.Pop();
}
tb.Insert(startTag);
}
else if (StringUtil.In(name, "pre", "listing"))
{
if (tb.InButtonScope("p"))
{
tb.Process(new Token.EndTag("p"));
}
tb.Insert(startTag);
// TODO: ignore LF if next token
tb.FramesetOK = false;
}
else if (name.Equals("form"))
{
if (tb.FormElement != null)
{
tb.Error(this);
return(false);
}
if (tb.InButtonScope("p"))
{
tb.Process(new Token.EndTag("p"));
}
HtmlElement form = tb.Insert(startTag);
tb.FormElement = form;
}
else if (name.Equals("li"))
{
tb.FramesetOK = false;
DescendableLinkedList <DomContainer> stack = tb.Stack;
for (int i = stack.Count - 1; i > 0; i--)
{
var el = stack.ElementAt(i); // TODO Performance of this?
if (el.NodeName.Equals("li"))
{
tb.Process(new Token.EndTag("li"));
break;
}
if (tb.IsSpecial(el) && !StringUtil.In(el.NodeName, "address", "div", "p"))
{
break;
}
}
if (tb.InButtonScope("p"))
{
tb.Process(new Token.EndTag("p"));
}
tb.Insert(startTag);
}
else if (StringUtil.In(name, "dd", "dt"))
{
tb.FramesetOK = false;
DescendableLinkedList <DomContainer> stack = tb.Stack;
for (int i = stack.Count - 1; i > 0; i--)
{
var el = stack.ElementAt(i);
if (StringUtil.In(el.NodeName, "dd", "dt"))
{
tb.Process(new Token.EndTag(el.NodeName));
break;
}
if (tb.IsSpecial(el) && !StringUtil.In(el.NodeName, "address", "div", "p"))
{
break;
}
}
if (tb.InButtonScope("p"))
{
tb.Process(new Token.EndTag("p"));
}
tb.Insert(startTag);
}
else if (name.Equals("plaintext"))
{
if (tb.InButtonScope("p"))
{
tb.Process(new Token.EndTag("p"));
}
tb.Insert(startTag);
tb.tokeniser.Transition(TokeniserState.PLAINTEXT); // once in, never gets out
}
else if (name.Equals("button"))
{
if (tb.InButtonScope("button"))
{
// close and reprocess
tb.Error(this);
tb.Process(new Token.EndTag("button"));
tb.Process(startTag);
}
else
{
tb.ReconstructFormattingElements();
tb.Insert(startTag);
tb.FramesetOK = false;
}
}
else if (name.Equals("a"))
{
if (tb.GetActiveFormattingElement("a") != null)
{
tb.Error(this);
tb.Process(new Token.EndTag("a"));
// still on stack?
var remainingA = tb.GetFromStack("a");
if (remainingA != null)
{
tb.RemoveFromActiveFormattingElements(remainingA);
tb.RemoveFromStack(remainingA);
}
}
tb.ReconstructFormattingElements();
HtmlElement a = tb.Insert(startTag);
tb.PushActiveFormattingElements(a);
}
else if (StringSet.Create("b big code em font i s small strike strong tt u").Contains(name))
{
tb.ReconstructFormattingElements();
HtmlElement el = tb.Insert(startTag);
tb.PushActiveFormattingElements(el);
}
else if (name.Equals("nobr"))
{
tb.ReconstructFormattingElements();
if (tb.InScope("nobr"))
{
tb.Error(this);
tb.Process(new Token.EndTag("nobr"));
tb.ReconstructFormattingElements();
}
HtmlElement el = tb.Insert(startTag);
tb.PushActiveFormattingElements(el);
}
else if (StringUtil.In(name, "applet", "marquee", "object"))
{
tb.ReconstructFormattingElements();
tb.Insert(startTag);
tb.InsertMarkerToFormattingElements();
tb.FramesetOK = false;
}
else if (name.Equals("table"))
{
if (tb.Document.QuirksMode != QuirksMode.Quirks && tb.InButtonScope("p"))
{
tb.Process(new Token.EndTag("p"));
}
tb.Insert(startTag);
tb.FramesetOK = false;
tb.Transition(InTable);
}
else if (StringSet.Create("area br embed img keygen wbr").Contains(name))
{
tb.ReconstructFormattingElements();
tb.InsertEmpty(startTag);
tb.FramesetOK = false;
}
else if (name.Equals("input"))
{
tb.ReconstructFormattingElements();
HtmlElement el = tb.InsertEmpty(startTag);
if (!el.Attribute("type").Equals("hidden", StringComparison.OrdinalIgnoreCase))
{
tb.FramesetOK = false;
}
}
else if (StringUtil.In(name, "param", "source", "track"))
{
tb.InsertEmpty(startTag);
}
else if (name.Equals("hr"))
{
if (tb.InButtonScope("p"))
{
tb.Process(new Token.EndTag("p"));
}
tb.InsertEmpty(startTag);
tb.FramesetOK = false;
}
else if (name.Equals("image"))
{
// we're not supposed to ask.
startTag.Name = "img";
return(tb.Process(startTag));
}
else if (name.Equals("isindex"))
{
// how much do we care about the early 90s?
tb.Error(this);
if (tb.FormElement != null)
{
return(false);
}
tb.tokeniser.AcknowledgeSelfClosingFlag();
tb.Process(new Token.StartTag("form"));
if (startTag.Attributes.Contains("action"))
{
HtmlElement form = tb.FormElement;
form.Attribute("action", startTag.Attributes["action"]);
}
tb.Process(new Token.StartTag("hr"));
tb.Process(new Token.StartTag("label"));
// hope you like english.
string prompt = startTag.Attributes.Contains("prompt") ?
startTag.Attributes["prompt"] :
"This is a searchable index. Enter search keywords: ";
tb.Process(new Token.Character(prompt));
// input
var inputStToken = new Token.StartTag("input");
HtmlAttributeCollection inputAttribs = inputStToken.Attributes;
inputAttribs["name"] = "isindex";
foreach (HtmlAttribute attr in startTag.Attributes)
{
if (!StringUtil.In(attr.Name.LocalName, "name", "action", "prompt"))
{
inputAttribs.Add(attr);
}
}
tb.Process(inputStToken);
tb.Process(new Token.EndTag("label"));
tb.Process(new Token.StartTag("hr"));
tb.Process(new Token.EndTag("form"));
}
else if (name.Equals("textarea"))
{
tb.Insert(startTag);
// TODO: If the next token is a U+000A LINE FEED (LF) char token, then ignore that token and move on to the next one. (Newlines at the start of textarea elements are ignored as an authoring convenience.)
tb.tokeniser.Transition(TokeniserState.Rcdata);
tb.MarkInsertionMode();
tb.FramesetOK = false;
tb.Transition(Text);
}
else if (name.Equals("xmp"))
{
if (tb.InButtonScope("p"))
{
tb.Process(new Token.EndTag("p"));
}
tb.ReconstructFormattingElements();
tb.FramesetOK = false;
HandleRawtext(startTag, tb);
}
else if (name.Equals("iframe"))
{
tb.FramesetOK = false;
HandleRawtext(startTag, tb);
}
else if (name.Equals("noembed"))
{
// also handle noscript if script enabled
HandleRawtext(startTag, tb);
}
else if (name.Equals("select"))
{
tb.ReconstructFormattingElements();
tb.Insert(startTag);
tb.FramesetOK = false;
HtmlTreeBuilderState state = tb.State;
if (state.Equals(InTable) || state.Equals(InCaption) || state.Equals(InTableBody) || state.Equals(InRow) || state.Equals(InCell))
{
tb.Transition(InSelectInTable);
}
else
{
tb.Transition(InSelect);
}
}
else if (StringUtil.In(name, "optgroup", "option"))
{
if (tb.CurrentElement.NodeName.Equals("option"))
{
tb.Process(new Token.EndTag("option"));
}
tb.ReconstructFormattingElements();
tb.Insert(startTag);
}
else if (StringUtil.In(name, "rp", "rt"))
{
if (tb.InScope("ruby"))
{
tb.GenerateImpliedEndTags();
if (!tb.CurrentElement.NodeName.Equals("ruby"))
{
tb.Error(this);
tb.PopStackToBefore("ruby"); // i.e. close up to but not include name
}
tb.Insert(startTag);
}
}
else if (name.Equals("math"))
{
tb.ReconstructFormattingElements();
// TODO: handle A start tag whose tag name is "math" (i.e. foreign, mathml)
tb.Insert(startTag);
tb.tokeniser.AcknowledgeSelfClosingFlag();
}
else if (name.Equals("svg"))
{
tb.ReconstructFormattingElements();
// TODO: handle A start tag whose tag name is "svg" (xlink, svg)
tb.Insert(startTag);
tb.tokeniser.AcknowledgeSelfClosingFlag();
}
else if (StringSet.Create("caption col colgroup frame head tbody td tfoot th thead tr").Contains(name))
{
tb.Error(this);
return(false);
}
else
{
tb.ReconstructFormattingElements();
tb.Insert(startTag);
}
return(null);
}
private bool AnythingElse(Token t, HtmlTreeBuilder tb)
{
tb.Process(new Token.StartTag("body"));
tb.FramesetOK = true;
return(tb.Process(t));
}
public override bool Process(Token t, HtmlTreeBuilder tb)
{
if (IsWhitespace(t))
{
tb.Insert(t.AsCharacter());
}
else if (t.IsComment)
{
tb.Insert(t.AsComment());
}
else if (t.IsDoctype)
{
tb.Error(this);
}
else if (t.IsStartTag)
{
Token.StartTag startTag = t.AsStartTag();
string name = startTag.Name;
switch (name)
{
case "html":
return(tb.Process(t, InBody));
case "body":
tb.Insert(startTag);
tb.FramesetOK = false;
tb.Transition(InBody);
break;
case "frameset":
tb.Insert(startTag);
tb.Transition(InFrameset);
break;
case "base":
case "basefont":
case "bgsound":
case "link":
case "meta":
case "noframes":
case "script":
case "style":
case "title":
tb.Error(this);
HtmlElement head = tb.HeadElement;
tb.Push(head);
tb.Process(t, InHead);
tb.RemoveFromStack(head);
break;
case "head":
tb.Error(this);
return(false);
default:
AnythingElse(t, tb);
break;
}
}
else if (t.IsEndTag)
{
if (StringUtil.In(t.AsEndTag().Name, "body", "html"))
{
AnythingElse(t, tb);
}
else
{
tb.Error(this);
return(false);
}
}
else
{
AnythingElse(t, tb);
}
return(true);
}
public override bool Process(Token t, HtmlTreeBuilder tb)
{
if (t.IsStartTag)
{
Token.StartTag startTag = t.AsStartTag();
string name = startTag.Name;
if (StringUtil.In(name, "th", "td"))
{
tb.ClearStackToTableRowContext();
tb.Insert(startTag);
tb.Transition(InCell);
tb.InsertMarkerToFormattingElements();
}
else if (StringSet.Create("caption col colgroup tbody tfoot thead tr").Contains(name))
{
return(HandleMissingTr(t, tb));
}
else
{
return(AnythingElse(t, tb));
}
}
else if (t.IsEndTag)
{
Token.EndTag endTag = t.AsEndTag();
string name = endTag.Name;
if (name.Equals("tr"))
{
if (!tb.InTableScope(name))
{
tb.Error(this); // frag
return(false);
}
tb.ClearStackToTableRowContext();
tb.Pop(); // tr
tb.Transition(InTableBody);
}
else if (name.Equals("table"))
{
return(HandleMissingTr(t, tb));
}
else if (StringUtil.In(name, "tbody", "tfoot", "thead"))
{
if (!tb.InTableScope(name))
{
tb.Error(this);
return(false);
}
tb.Process(new Token.EndTag("tr"));
return(tb.Process(t));
}
else if (StringSet.Create("body caption col colgroup html td th").Contains(name))
{
tb.Error(this);
return(false);
}
else
{
return(AnythingElse(t, tb));
}
}
else
{
return(AnythingElse(t, tb));
}
return(true);
}
public override bool Process(Token t, HtmlTreeBuilder tb)
{
if (t.IsEndTag)
{
Token.EndTag endTag = t.AsEndTag();
string name = endTag.Name;
if (name.In("td", "th"))
{
if (!tb.InTableScope(name))
{
tb.Error(this);
tb.Transition(InRow); // might not be in scope if empty: <td /> and processing fake end tag
return(false);
}
tb.GenerateImpliedEndTags();
if (!tb.CurrentElement.NodeName.Equals(name))
{
tb.Error(this);
}
tb.PopStackToClose(name);
tb.ClearFormattingElementsToLastMarker();
tb.Transition(InRow);
}
else if (StringUtil.In(name, "body", "caption", "col", "colgroup", "html"))
{
tb.Error(this);
return(false);
}
else if (StringUtil.In(name, "table", "tbody", "tfoot", "thead", "tr"))
{
if (!tb.InTableScope(name))
{
tb.Error(this);
return(false);
}
CloseCell(tb);
return(tb.Process(t));
}
else
{
return(AnythingElse(t, tb));
}
}
else if (t.IsStartTag &&
StringSet.Create("caption col colgroup tbody td tfoot th thead tr").Contains(t.AsStartTag().Name))
{
if (!(tb.InTableScope("td") || tb.InTableScope("th")))
{
tb.Error(this);
return(false);
}
CloseCell(tb);
return(tb.Process(t));
}
else
{
return(AnythingElse(t, tb));
}
return(true);
}
private bool?HandleEndTag(Token t, HtmlTreeBuilder tb)
{
Token.EndTag endTag = t.AsEndTag();
string name = endTag.Name;
if (name.Equals("body"))
{
if (!tb.InScope("body"))
{
tb.Error(this);
return(false);
}
else
{
// TODO: error if stack contains something not dd, dt, li, optgroup, option, p, rp, rt, tbody, td, tfoot, th, thead, tr, body, html
tb.Transition(AfterBody);
}
}
else if (name.Equals("html"))
{
bool notIgnored = tb.Process(new Token.EndTag("body"));
if (notIgnored)
{
return(tb.Process(endTag));
}
}
else if (StringSet.Create(@"address article aside blockquote button center details dir div
dl fieldset figcaption figure footer header hgroup listing menu
nav ol pre section summary ul").Contains(name))
{
// TODO: refactor these lookups
if (!tb.InScope(name))
{
// nothing to close
tb.Error(this);
return(false);
}
else
{
tb.GenerateImpliedEndTags();
if (!tb.CurrentElement.NodeName.Equals(name))
{
tb.Error(this);
}
tb.PopStackToClose(name);
}
}
else if (name.Equals("form"))
{
HtmlElement currentForm = tb.FormElement;
tb.FormElement = null;
if (currentForm == null || !tb.InScope(name))
{
tb.Error(this);
return(false);
}
else
{
tb.GenerateImpliedEndTags();
if (!tb.CurrentElement.NodeName.Equals(name))
{
tb.Error(this);
}
// remove currentForm from stack. will shift anything under up.
tb.RemoveFromStack(currentForm);
}
}
else if (name.Equals("p"))
{
if (!tb.InButtonScope(name))
{
tb.Error(this);
tb.Process(new Token.StartTag(name)); // if no p to close, creates an empty <p></p>
return(tb.Process(endTag));
}
else
{
tb.GenerateImpliedEndTags(name);
if (!tb.CurrentElement.NodeName.Equals(name))
{
tb.Error(this);
}
tb.PopStackToClose(name);
}
}
else if (name.Equals("li"))
{
if (!tb.InListItemScope(name))
{
tb.Error(this);
return(false);
}
else
{
tb.GenerateImpliedEndTags(name);
if (!tb.CurrentElement.NodeName.Equals(name))
{
tb.Error(this);
}
tb.PopStackToClose(name);
}
}
else if (StringUtil.In(name, "dd", "dt"))
{
if (!tb.InScope(name))
{
tb.Error(this);
return(false);
}
else
{
tb.GenerateImpliedEndTags(name);
if (!tb.CurrentElement.NodeName.Equals(name))
{
tb.Error(this);
}
tb.PopStackToClose(name);
}
}
else if (HeadingTags.Contains(name))
{
if (!tb.InScope(HeadingTags))
{
tb.Error(this);
return(false);
}
else
{
tb.GenerateImpliedEndTags(name);
if (!tb.CurrentElement.NodeName.Equals(name))
{
tb.Error(this);
}
tb.PopStackToClose(HeadingTags);
}
}
else if (name.Equals("sarcasm"))
{
// *sigh*
return(AnyOtherEndTag(t, tb));
}
else if (StringSet.Create("a b big code em font i nobr s small strike strong tt u").Contains(name))
{
// Adoption Agency Algorithm.
OUTER:
for (int i = 0; i < 8; i++)
{
var formatEl = tb.GetActiveFormattingElement(name);
if (formatEl == null)
{
return(AnyOtherEndTag(t, tb));
}
else if (!tb.OnStack(formatEl))
{
tb.Error(this);
tb.RemoveFromActiveFormattingElements(formatEl);
return(true);
}
else if (!tb.InScope(formatEl.NodeName))
{
tb.Error(this);
return(false);
}
else if (tb.CurrentElement != formatEl)
{
tb.Error(this);
}
DomContainer furthestBlock = null;
DomContainer commonAncestor = null;
bool seenFormattingElement = false;
DescendableLinkedList <DomContainer> stack = tb.Stack;
for (int si = 0; si < stack.Count; si++)
{
DomContainer el = stack.ElementAt(si);
if (el == formatEl)
{
commonAncestor = stack.ElementAt(si - 1);
seenFormattingElement = true;
}
else if (seenFormattingElement && tb.IsSpecial(el))
{
furthestBlock = el;
break;
}
}
if (furthestBlock == null)
{
tb.PopStackToClose(formatEl.NodeName);
tb.RemoveFromActiveFormattingElements(formatEl);
return(true);
}
// TODO: Let a bookmark note the position of the formatting element in the list of active formatting elements relative to the elements on either side of it in the list.
// does that mean: int pos of format el in list?
DomContainer node = furthestBlock;
DomContainer lastNode = furthestBlock;
INNER:
for (int j = 0; j < 3; j++)
{
continueINNER:
if (tb.OnStack(node))
{
node = tb.AboveOnStack(node);
}
if (!tb.IsInActiveFormattingElements(node)) // note no bookmark check
{
tb.RemoveFromStack(node);
goto continueINNER;
}
else if (node == formatEl)
{
goto breakINNER;
}
HtmlElement replacement = new HtmlElement(node.NodeName);
tb.ReplaceActiveFormattingElement(node, replacement);
tb.ReplaceOnStack(node, replacement);
node = replacement;
if (lastNode == furthestBlock)
{
// TODO: move the aforementioned bookmark to be immediately after the new node in the list of active formatting elements.
// not getting how this bookmark both straddles the element above, but is inbetween here...
}
if (lastNode.Parent != null)
{
lastNode.Remove();
}
node.Append(lastNode);
lastNode = node;
}
breakINNER:
if (StringUtil.In(commonAncestor.NodeName, "table", "tbody", "tfoot", "thead", "tr"))
{
if (lastNode.Parent != null)
{
lastNode.Remove();
}
tb.InsertInFosterParent(lastNode);
}
else
{
if (lastNode.Parent != null)
{
lastNode.Remove();
}
commonAncestor.Append(lastNode);
}
HtmlElement adopter = new HtmlElement(name);
var childNodes = furthestBlock.ChildNodes.ToArray();
foreach (var childNode in childNodes)
{
adopter.Append(childNode); // append will reparent. thus the clone to avvoid concurrent mod.
}
furthestBlock.Append(adopter);
tb.RemoveFromActiveFormattingElements(formatEl);
// TODO: insert the new element into the list of active formatting elements at the position of the aforementioned bookmark.
tb.RemoveFromStack(formatEl);
tb.InsertOnStackAfter(furthestBlock, adopter);
}
}
else if (StringUtil.In(name, "applet", "marquee", "object"))
{
if (!tb.InScope("name"))
{
if (!tb.InScope(name))
{
tb.Error(this);
return(false);
}
tb.GenerateImpliedEndTags();
if (!tb.CurrentElement.NodeName.Equals(name))
{
tb.Error(this);
}
tb.PopStackToClose(name);
tb.ClearFormattingElementsToLastMarker();
}
}
else if (name.Equals("br"))
{
tb.Error(this);
tb.Process(new Token.StartTag("br"));
return(false);
}
else
{
return(AnyOtherEndTag(t, tb));
}
return(null);
}