HtmlParser
Represents the Tree construction as specified in
8.2.5 Tree construction, on the following page:
http://www.w3.org/html/wg/drafts/html/master/syntax.html
using AngleSharp.Dom;
using AngleSharp.Dom.Html;
using AngleSharp.Dom.Mathml;
using AngleSharp.Dom.Svg;
using AngleSharp.Extensions;
using AngleSharp.Html;
using AngleSharp.Network;
using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.IO;
using System.Text;
using System.Threading;
using System.Threading.Tasks;
namespace AngleSharp.Parser.Html
{
[DebuggerStepThrough]
public sealed class HtmlParser
{
private readonly HtmlTokenizer _tokenizer;
private readonly HtmlDocument _document;
private readonly List<Element> _openElements;
private readonly List<Element> _formattingElements;
private readonly Stack<HtmlTreeMode> _templateModes;
private readonly object _syncGuard;
private HtmlFormElement _currentFormElement;
private HtmlScriptElement _currentScriptElement;
private HtmlTreeMode _currentMode;
private HtmlTreeMode _previousMode;
private Element _fragmentContext;
private bool _foster;
private bool _embedded;
private bool _frameset;
private bool _scripting;
private int _nested;
private bool _started;
private Task<IHtmlDocument> _parsing;
private Task _waiting;
public IDocument Result => _document;
public bool IsAsync => _parsing != null;
public bool IsEmbedded => _embedded;
public bool IsFragmentCase => _fragmentContext != null;
internal Element AdjustedCurrentNode {
get {
if (_fragmentContext == null || _openElements.Count != 1)
return CurrentNode;
return _fragmentContext;
}
}
internal Element CurrentNode {
get {
if (_openElements.Count <= 0)
return null;
return _openElements[_openElements.Count - 1];
}
}
public bool IsScripting {
get {
return _scripting;
}
internal set {
_scripting = value;
}
}
public HtmlParser(string source, IConfiguration configuration = null)
: this(new HtmlDocument(BrowsingContext.New(configuration), new TextSource(source)))
{
}
public HtmlParser(Stream stream, IConfiguration configuration = null)
: this(new HtmlDocument(BrowsingContext.New(configuration), new TextSource(stream, configuration.DefaultEncoding())))
{
}
internal HtmlParser(HtmlDocument document)
{
_tokenizer = new HtmlTokenizer(document.Source, document.Options.Events);
_syncGuard = new object();
_started = false;
_document = document;
_openElements = new List<Element>();
_templateModes = new Stack<HtmlTreeMode>();
_formattingElements = new List<Element>();
_frameset = true;
_embedded = false;
_scripting = document.Options.IsScripting();
_currentMode = HtmlTreeMode.Initial;
}
public Task<IHtmlDocument> ParseAsync()
{
return ParseAsync(CancellationToken.None);
}
public Task<IHtmlDocument> ParseAsync(CancellationToken cancelToken)
{
lock (_syncGuard) {
if (!_started) {
_started = true;
_parsing = KernelAsync(cancelToken);
}
}
return _parsing;
}
public IHtmlDocument Parse()
{
lock (_syncGuard) {
if (!_started) {
_started = true;
Kernel();
}
}
return _document;
}
public Task<IHtmlDocument> ParseEmbeddedAsync()
{
return ParseEmbeddedAsync(CancellationToken.None);
}
public Task<IHtmlDocument> ParseEmbeddedAsync(CancellationToken cancelToken)
{
lock (_syncGuard) {
if (!_started) {
_started = true;
_embedded = true;
_parsing = KernelAsync(cancelToken);
}
}
return _parsing;
}
public IDocument ParseEmbedded()
{
lock (_syncGuard) {
if (!_started) {
_started = true;
_embedded = true;
Kernel();
}
}
return _document;
}
public Task<IHtmlDocument> ParseFragmentAsync(IElement context)
{
return ParseFragmentAsync(context, CancellationToken.None);
}
public Task<IHtmlDocument> ParseFragmentAsync(IElement context, CancellationToken cancelToken)
{
lock (_syncGuard) {
if (!_started) {
_started = true;
SwitchToFragment(context as Element);
_parsing = KernelAsync(cancelToken);
}
}
return _parsing;
}
public IDocument ParseFragment(IElement context)
{
lock (_syncGuard) {
if (!_started) {
_started = true;
SwitchToFragment(context as Element);
Kernel();
}
}
return _document;
}
private void SwitchToFragment(Element context)
{
if (context == null)
throw new ArgumentNullException("context");
string localName = context.LocalName;
if (localName.IsOneOf(Tags.Title, Tags.Textarea))
_tokenizer.State = HtmlParseMode.RCData;
else if (localName.IsOneOf(Tags.Style, Tags.Xmp, Tags.Iframe, Tags.NoEmbed, Tags.NoFrames)) {
_tokenizer.State = HtmlParseMode.Rawtext;
} else if (localName == Tags.Script) {
_tokenizer.State = HtmlParseMode.Script;
} else if (localName == Tags.Plaintext) {
_tokenizer.State = HtmlParseMode.Plaintext;
} else if (localName == Tags.NoScript && _scripting) {
_tokenizer.State = HtmlParseMode.Rawtext;
}
HtmlHtmlElement htmlHtmlElement = new HtmlHtmlElement(_document, null);
_document.AddNode(htmlHtmlElement);
_openElements.Add(htmlHtmlElement);
if (context is HtmlTemplateElement)
_templateModes.Push(HtmlTreeMode.InTemplate);
Reset(context);
_fragmentContext = context;
_tokenizer.IsAcceptingCharacterData = !AdjustedCurrentNode.Flags.HasFlag(NodeFlags.HtmlMember);
while (!(context is HtmlFormElement)) {
context = (context.ParentElement as Element);
if (context == null)
return;
}
_currentFormElement = (HtmlFormElement)context;
}
private void Restart()
{
_currentMode = HtmlTreeMode.Initial;
_tokenizer.State = HtmlParseMode.PCData;
_document.ReplaceAll(null, true);
_frameset = true;
_openElements.Clear();
_formattingElements.Clear();
_templateModes.Clear();
}
private void Reset(IElement context = null)
{
bool flag = false;
IElement element = null;
int num = _openElements.Count - 1;
while (true) {
if (num < 0)
return;
element = _openElements[num];
if (num == 0) {
flag = true;
element = (context ?? element);
}
string localName = element.LocalName;
if (localName == Tags.Select) {
_currentMode = HtmlTreeMode.InSelect;
return;
}
if (localName.IsOneOf(Tags.Th, Tags.Td)) {
_currentMode = (flag ? HtmlTreeMode.InBody : HtmlTreeMode.InCell);
return;
}
if (localName == Tags.Tr) {
_currentMode = HtmlTreeMode.InRow;
return;
}
if (localName.IsOneOf(Tags.Thead, Tags.Tfoot, Tags.Tbody)) {
_currentMode = HtmlTreeMode.InTableBody;
return;
}
if (localName == Tags.Body) {
_currentMode = HtmlTreeMode.InBody;
return;
}
if (localName == Tags.Table) {
_currentMode = HtmlTreeMode.InTable;
return;
}
if (localName == Tags.Caption) {
_currentMode = HtmlTreeMode.InCaption;
return;
}
if (localName == Tags.Colgroup) {
_currentMode = HtmlTreeMode.InColumnGroup;
return;
}
if (localName == Tags.Template) {
_currentMode = _templateModes.Peek();
return;
}
if (localName == Tags.Html) {
_currentMode = HtmlTreeMode.BeforeHead;
return;
}
if (localName == Tags.Head) {
_currentMode = (flag ? HtmlTreeMode.InBody : HtmlTreeMode.InHead);
return;
}
if (localName == Tags.Frameset) {
_currentMode = HtmlTreeMode.InFrameset;
return;
}
if (flag)
break;
num--;
}
_currentMode = HtmlTreeMode.InBody;
}
private void Consume(HtmlToken token)
{
Element adjustedCurrentNode = AdjustedCurrentNode;
if (adjustedCurrentNode == null || token.IsEof || adjustedCurrentNode.Flags.HasFlag(NodeFlags.HtmlMember) || (adjustedCurrentNode.Flags.HasFlag(NodeFlags.HtmlTip) && token.IsHtmlCompatible) || (adjustedCurrentNode.Flags.HasFlag(NodeFlags.MathTip) && token.IsMathCompatible) || (adjustedCurrentNode.Flags.HasFlag(NodeFlags.MathMember) && token.IsSvg && adjustedCurrentNode.LocalName == Tags.AnnotationXml))
Home(token);
else
Foreign(token);
}
private void Home(HtmlToken token)
{
switch (_currentMode) {
case HtmlTreeMode.Initial:
Initial(token);
break;
case HtmlTreeMode.BeforeHtml:
BeforeHtml(token);
break;
case HtmlTreeMode.BeforeHead:
BeforeHead(token);
break;
case HtmlTreeMode.InHead:
InHead(token);
break;
case HtmlTreeMode.InHeadNoScript:
InHeadNoScript(token);
break;
case HtmlTreeMode.AfterHead:
AfterHead(token);
break;
case HtmlTreeMode.InBody:
InBody(token);
break;
case HtmlTreeMode.Text:
Text(token);
break;
case HtmlTreeMode.InTable:
InTable(token);
break;
case HtmlTreeMode.InCaption:
InCaption(token);
break;
case HtmlTreeMode.InColumnGroup:
InColumnGroup(token);
break;
case HtmlTreeMode.InTableBody:
InTableBody(token);
break;
case HtmlTreeMode.InRow:
InRow(token);
break;
case HtmlTreeMode.InCell:
InCell(token);
break;
case HtmlTreeMode.InSelect:
InSelect(token);
break;
case HtmlTreeMode.InSelectInTable:
InSelectInTable(token);
break;
case HtmlTreeMode.InTemplate:
InTemplate(token);
break;
case HtmlTreeMode.AfterBody:
AfterBody(token);
break;
case HtmlTreeMode.InFrameset:
InFrameset(token);
break;
case HtmlTreeMode.AfterFrameset:
AfterFrameset(token);
break;
case HtmlTreeMode.AfterAfterBody:
AfterAfterBody(token);
break;
case HtmlTreeMode.AfterAfterFrameset:
AfterAfterFrameset(token);
break;
}
}
private void Initial(HtmlToken token)
{
switch (token.Type) {
case HtmlTokenType.Doctype: {
HtmlDoctypeToken htmlDoctypeToken = (HtmlDoctypeToken)token;
if (!htmlDoctypeToken.IsValid)
RaiseErrorOccurred(HtmlParseError.DoctypeInvalid);
AddDoctype(htmlDoctypeToken);
if (htmlDoctypeToken.IsFullQuirks)
_document.QuirksMode = QuirksMode.On;
else if (htmlDoctypeToken.IsLimitedQuirks) {
_document.QuirksMode = QuirksMode.Limited;
}
_currentMode = HtmlTreeMode.BeforeHtml;
return;
}
case HtmlTokenType.Character:
token.TrimStart();
if (token.IsEmpty)
return;
break;
case HtmlTokenType.Comment:
_document.AddComment(token);
return;
}
if (!_embedded) {
RaiseErrorOccurred(HtmlParseError.DoctypeMissing);
_document.QuirksMode = QuirksMode.On;
}
_currentMode = HtmlTreeMode.BeforeHtml;
BeforeHtml(token);
}
private void BeforeHtml(HtmlToken token)
{
switch (token.Type) {
case HtmlTokenType.Character:
token.TrimStart();
if (token.IsEmpty)
return;
break;
case HtmlTokenType.Comment:
_document.AddComment(token);
return;
case HtmlTokenType.StartTag:
if (!(token.Name != Tags.Html)) {
AddRoot(token.AsTag());
_currentMode = HtmlTreeMode.BeforeHead;
return;
}
break;
case HtmlTokenType.EndTag:
if (!token.Name.IsOneOf(Tags.Html, Tags.Body, Tags.Br, Tags.Head)) {
RaiseErrorOccurred(HtmlParseError.TagCannotEndHere);
return;
}
break;
case HtmlTokenType.Doctype:
RaiseErrorOccurred(HtmlParseError.DoctypeTagInappropriate);
return;
}
BeforeHtml(HtmlTagToken.Open(Tags.Html));
BeforeHead(token);
}
private void BeforeHead(HtmlToken token)
{
switch (token.Type) {
case HtmlTokenType.Character:
token.TrimStart();
if (token.IsEmpty)
return;
break;
case HtmlTokenType.StartTag: {
string name = token.Name;
if (name == Tags.Html) {
InBody(token);
return;
}
if (name == Tags.Head) {
AddElement(new HtmlHeadElement(_document, null), token.AsTag(), false);
_currentMode = HtmlTreeMode.InHead;
return;
}
break;
}
case HtmlTokenType.EndTag:
if (!token.Name.IsOneOf(Tags.Html, Tags.Body, Tags.Br, Tags.Head)) {
RaiseErrorOccurred(HtmlParseError.TagCannotEndHere);
return;
}
break;
case HtmlTokenType.Comment:
CurrentNode.AddComment(token);
return;
case HtmlTokenType.Doctype:
RaiseErrorOccurred(HtmlParseError.DoctypeTagInappropriate);
return;
}
BeforeHead(HtmlTagToken.Open(Tags.Head));
InHead(token);
}
private void InHead(HtmlToken token)
{
switch (token.Type) {
case HtmlTokenType.Character: {
string text = token.TrimStart();
AddCharacters(text);
if (token.IsEmpty)
return;
break;
}
case HtmlTokenType.Comment:
CurrentNode.AddComment(token);
return;
case HtmlTokenType.Doctype:
RaiseErrorOccurred(HtmlParseError.DoctypeTagInappropriate);
return;
case HtmlTokenType.StartTag: {
string name2 = token.Name;
if (name2 == Tags.Html) {
InBody(token);
return;
}
if (name2 == Tags.Meta) {
HtmlMetaElement htmlMetaElement = new HtmlMetaElement(_document, null);
AddElement(htmlMetaElement, token.AsTag(), true);
Encoding encoding = htmlMetaElement.GetEncoding();
CloseCurrentNode();
if (encoding != null)
try {
_document.Source.CurrentEncoding = encoding;
} catch (NotSupportedException) {
Restart();
}
return;
}
if (name2.IsOneOf(Tags.Link, Tags.Base, Tags.BaseFont, Tags.Bgsound)) {
AddElement(token.AsTag(), true);
CloseCurrentNode();
return;
}
if (name2 == Tags.Title) {
RCDataAlgorithm(token.AsTag());
return;
}
if (name2.IsOneOf(Tags.Style, Tags.NoFrames) || (_scripting && name2 == Tags.NoScript)) {
RawtextAlgorithm(token.AsTag());
return;
}
if (name2 == Tags.NoScript) {
AddElement(token.AsTag(), false);
_currentMode = HtmlTreeMode.InHeadNoScript;
return;
}
if (name2 == Tags.Script) {
HtmlScriptElement htmlScriptElement = new HtmlScriptElement(_document, null);
AddElement(htmlScriptElement, token.AsTag(), false);
htmlScriptElement.IsParserInserted = true;
htmlScriptElement.IsAlreadyStarted = IsFragmentCase;
_tokenizer.State = HtmlParseMode.Script;
_previousMode = _currentMode;
_currentMode = HtmlTreeMode.Text;
return;
}
if (name2 == Tags.Head) {
RaiseErrorOccurred(HtmlParseError.HeadTagMisplaced);
return;
}
if (name2 == Tags.Template) {
AddElement(new HtmlTemplateElement(_document, null), token.AsTag(), false);
_formattingElements.AddScopeMarker();
_frameset = false;
_currentMode = HtmlTreeMode.InTemplate;
_templateModes.Push(HtmlTreeMode.InTemplate);
return;
}
break;
}
case HtmlTokenType.EndTag: {
string name = token.Name;
if (name == Tags.Head) {
CloseCurrentNode();
_currentMode = HtmlTreeMode.AfterHead;
_waiting = _document.WaitForReady();
return;
}
if (name == Tags.Template) {
if (TagCurrentlyOpen(Tags.Template)) {
GenerateImpliedEndTags();
if (!(CurrentNode is HtmlTemplateElement))
RaiseErrorOccurred(HtmlParseError.TagClosingMismatch);
CloseTemplate();
} else
RaiseErrorOccurred(HtmlParseError.TagInappropriate);
return;
}
if (!name.IsOneOf(Tags.Html, Tags.Body, Tags.Br)) {
RaiseErrorOccurred(HtmlParseError.TagCannotEndHere);
return;
}
break;
}
}
CloseCurrentNode();
_currentMode = HtmlTreeMode.AfterHead;
AfterHead(token);
}
private void InHeadNoScript(HtmlToken token)
{
switch (token.Type) {
case HtmlTokenType.Character: {
string text = token.TrimStart();
AddCharacters(text);
if (token.IsEmpty)
return;
break;
}
case HtmlTokenType.Comment:
InHead(token);
return;
case HtmlTokenType.StartTag: {
string name2 = token.Name;
if (name2.IsOneOf(Tags.Style, Tags.Link, Tags.BaseFont, Tags.Meta, Tags.NoFrames, Tags.Bgsound)) {
InHead(token);
return;
}
if (name2 == Tags.Html) {
InBody(token);
return;
}
if (name2.IsOneOf(Tags.Head, Tags.NoScript)) {
RaiseErrorOccurred(HtmlParseError.TagInappropriate);
return;
}
break;
}
case HtmlTokenType.EndTag: {
string name = token.Name;
if (name == Tags.NoScript) {
CloseCurrentNode();
_currentMode = HtmlTreeMode.InHead;
return;
}
if (name != Tags.Br) {
RaiseErrorOccurred(HtmlParseError.TagCannotEndHere);
return;
}
break;
}
case HtmlTokenType.Doctype:
RaiseErrorOccurred(HtmlParseError.DoctypeTagInappropriate);
return;
}
RaiseErrorOccurred(HtmlParseError.TokenNotPossible);
CloseCurrentNode();
_currentMode = HtmlTreeMode.InHead;
InHead(token);
}
private void AfterHead(HtmlToken token)
{
switch (token.Type) {
case HtmlTokenType.Character: {
string text = token.TrimStart();
AddCharacters(text);
if (token.IsEmpty)
return;
break;
}
case HtmlTokenType.Comment:
CurrentNode.AddComment(token);
return;
case HtmlTokenType.Doctype:
RaiseErrorOccurred(HtmlParseError.DoctypeTagInappropriate);
return;
case HtmlTokenType.StartTag: {
string name = token.Name;
if (name == Tags.Html) {
InBody(token);
return;
}
if (name == Tags.Body) {
AfterHeadStartTagBody(token.AsTag());
return;
}
if (name == Tags.Frameset) {
AddElement(new HtmlFrameSetElement(_document, null), token.AsTag(), false);
_currentMode = HtmlTreeMode.InFrameset;
return;
}
if (name.IsOneOf(Tags.Link, Tags.Meta, Tags.Script, Tags.Style, Tags.Title) || name.IsOneOf(Tags.Base, Tags.BaseFont, Tags.Bgsound, Tags.NoFrames)) {
RaiseErrorOccurred(HtmlParseError.TagMustBeInHead);
int count = _openElements.Count;
Element item = _document.Head as Element;
_openElements.Add(item);
InHead(token);
_openElements.Remove(item);
return;
}
if (name == Tags.Head) {
RaiseErrorOccurred(HtmlParseError.HeadTagMisplaced);
return;
}
break;
}
case HtmlTokenType.EndTag:
if (!token.Name.IsOneOf(Tags.Html, Tags.Body, Tags.Br)) {
RaiseErrorOccurred(HtmlParseError.TagCannotEndHere);
return;
}
break;
}
AfterHeadStartTagBody(HtmlTagToken.Open(Tags.Body));
_frameset = true;
Home(token);
}
private void InBodyStartTag(HtmlTagToken tag)
{
string name = tag.Name;
KeyValuePair<string, string> keyValuePair;
if (name == Tags.Div) {
if (IsInButtonScope())
InBodyEndTagParagraph();
AddElement(tag, false);
} else if (name == Tags.A) {
for (int num = _formattingElements.Count - 1; num >= 0; num--) {
if (_formattingElements[num] == null)
break;
if (_formattingElements[num] is HtmlAnchorElement) {
Element item = _formattingElements[num];
RaiseErrorOccurred(HtmlParseError.AnchorNested);
HeisenbergAlgorithm(HtmlTagToken.Close(Tags.A));
_openElements.Remove(item);
_formattingElements.Remove(item);
break;
}
}
ReconstructFormatting();
HtmlAnchorElement element = new HtmlAnchorElement(_document, null);
AddElement(element, tag, false);
_formattingElements.AddFormatting(element);
} else if (name == Tags.Span) {
ReconstructFormatting();
AddElement(tag, false);
} else if (name == Tags.Li) {
InBodyStartTagListItem(tag);
} else if (name == Tags.Img) {
InBodyStartTagBreakrow(tag);
} else if (name.IsOneOf(Tags.Ul, Tags.P)) {
if (IsInButtonScope())
InBodyEndTagParagraph();
AddElement(tag, false);
} else if (name == Tags.Script) {
InHead(tag);
} else if (name.IsOneOf(Tags.H3, Tags.H2, Tags.H4, Tags.H1, Tags.H6, Tags.H5)) {
if (IsInButtonScope())
InBodyEndTagParagraph();
if (CurrentNode is HtmlHeadingElement) {
RaiseErrorOccurred(HtmlParseError.HeadingNested);
CloseCurrentNode();
}
AddElement(new HtmlHeadingElement(_document, name, null), tag, false);
} else if (name == Tags.Input) {
ReconstructFormatting();
AddElement(new HtmlInputElement(_document, null), tag, true);
CloseCurrentNode();
if (!tag.GetAttribute(AttributeNames.Type).Equals(AttributeNames.Hidden, StringComparison.OrdinalIgnoreCase))
_frameset = false;
} else if (name == Tags.Form) {
if (_currentFormElement == null) {
if (IsInButtonScope())
InBodyEndTagParagraph();
_currentFormElement = new HtmlFormElement(_document, null);
AddElement(_currentFormElement, tag, false);
} else
RaiseErrorOccurred(HtmlParseError.FormAlreadyOpen);
} else if (name.IsOneOf(Tags.Ol, Tags.Dl, Tags.Fieldset) || name.IsOneOf(Tags.Figcaption, Tags.Figure, Tags.Article, Tags.Aside, Tags.BlockQuote, Tags.Center) || name.IsOneOf(Tags.Address, Tags.Dialog, Tags.Dir, Tags.Summary, Tags.Details, Tags.Main) || name.IsOneOf(Tags.Footer, Tags.Header, Tags.Nav, Tags.Section, Tags.Menu, Tags.Hgroup)) {
if (IsInButtonScope())
InBodyEndTagParagraph();
AddElement(tag, false);
} else if (name.IsOneOf(Tags.B, Tags.Strong, Tags.Code, Tags.Em, Tags.U, Tags.I) || name.IsOneOf(Tags.Font, Tags.S, Tags.Small, Tags.Strike, Tags.Big, Tags.Tt)) {
ReconstructFormatting();
_formattingElements.AddFormatting(AddElement(tag, false));
} else if (name.IsOneOf(Tags.Caption, Tags.Col, Tags.Colgroup) || name.IsOneOf(Tags.Frame, Tags.Head) || name.IsOneOf(Tags.Tbody, Tags.Td, Tags.Tfoot, Tags.Th, Tags.Thead, Tags.Tr)) {
RaiseErrorOccurred(HtmlParseError.TagCannotStartHere);
} else if (name.IsOneOf(Tags.Style, Tags.Link) || name.IsOneOf(Tags.Meta, Tags.Title, Tags.NoFrames, Tags.Template) || name.IsOneOf(Tags.Base, Tags.BaseFont, Tags.Bgsound)) {
InHead(tag);
} else if (name.IsOneOf(Tags.Pre, Tags.Listing)) {
if (IsInButtonScope())
InBodyEndTagParagraph();
AddElement(tag, false);
_frameset = false;
PreventNewLine();
} else if (name == Tags.Button) {
if (IsInScope<HtmlButtonElement>()) {
RaiseErrorOccurred(HtmlParseError.ButtonInScope);
InBodyEndTagBlock(Tags.Button);
InBody(tag);
} else {
ReconstructFormatting();
AddElement(new HtmlButtonElement(_document, null), tag, false);
_frameset = false;
}
} else if (name == Tags.Table) {
if (_document.QuirksMode != QuirksMode.On && IsInButtonScope())
InBodyEndTagParagraph();
AddElement(new HtmlTableElement(_document, null), tag, false);
_frameset = false;
_currentMode = HtmlTreeMode.InTable;
} else if (name.IsOneOf(Tags.Br, Tags.Area, Tags.Embed, Tags.Keygen, Tags.Wbr)) {
InBodyStartTagBreakrow(tag);
} else if (name.IsOneOf(Tags.MenuItem, Tags.Param, Tags.Source, Tags.Track)) {
AddElement(tag, true);
CloseCurrentNode();
} else if (name == Tags.Hr) {
if (IsInButtonScope())
InBodyEndTagParagraph();
AddElement(new HtmlHrElement(_document, null), tag, true);
CloseCurrentNode();
_frameset = false;
} else if (name == Tags.Textarea) {
AddElement(new HtmlTextAreaElement(_document, null), tag, false);
_tokenizer.State = HtmlParseMode.RCData;
_previousMode = _currentMode;
_frameset = false;
_currentMode = HtmlTreeMode.Text;
PreventNewLine();
} else if (name == Tags.Select) {
ReconstructFormatting();
AddElement(new HtmlSelectElement(_document, null), tag, false);
_frameset = false;
switch (_currentMode) {
case HtmlTreeMode.InTable:
case HtmlTreeMode.InCaption:
case HtmlTreeMode.InTableBody:
case HtmlTreeMode.InRow:
case HtmlTreeMode.InCell:
_currentMode = HtmlTreeMode.InSelectInTable;
break;
default:
_currentMode = HtmlTreeMode.InSelect;
break;
}
} else if (name.IsOneOf(Tags.Optgroup, Tags.Option)) {
if (CurrentNode is HtmlOptionElement)
InBodyEndTagAnythingElse(HtmlTagToken.Close(Tags.Option));
ReconstructFormatting();
AddElement(tag, false);
} else if (name.IsOneOf(Tags.Dd, Tags.Dt)) {
InBodyStartTagDefinitionItem(tag);
} else if (name == Tags.Iframe) {
_frameset = false;
RawtextAlgorithm(tag);
} else if (name.IsOneOf(Tags.Applet, Tags.Marquee, Tags.Object)) {
ReconstructFormatting();
AddElement(tag, false);
_formattingElements.AddScopeMarker();
_frameset = false;
} else if (name == Tags.Image) {
RaiseErrorOccurred(HtmlParseError.ImageTagNamedWrong);
tag.Name = Tags.Img;
InBodyStartTagBreakrow(tag);
} else if (name == Tags.NoBr) {
ReconstructFormatting();
if (IsInScope<HtmlNoNewlineElement>()) {
RaiseErrorOccurred(HtmlParseError.NobrInScope);
HeisenbergAlgorithm(tag);
ReconstructFormatting();
}
_formattingElements.AddFormatting(AddElement(tag, false));
} else if (name == Tags.Xmp) {
if (IsInButtonScope())
InBodyEndTagParagraph();
ReconstructFormatting();
_frameset = false;
RawtextAlgorithm(tag);
} else if (name.IsOneOf(Tags.Rb, Tags.Rtc)) {
if (IsInScope<HtmlRubyElement>()) {
GenerateImpliedEndTags();
if (!(CurrentNode is HtmlRubyElement))
RaiseErrorOccurred(HtmlParseError.TagDoesNotMatchCurrentNode);
}
AddElement(tag, false);
} else if (name.IsOneOf(Tags.Rp, Tags.Rt)) {
if (IsInScope<HtmlRubyElement>()) {
GenerateImpliedEndTagsExceptFor(Tags.Rtc);
if (!CurrentNode.LocalName.IsOneOf(Tags.Ruby, Tags.Rtc))
RaiseErrorOccurred(HtmlParseError.TagDoesNotMatchCurrentNode);
}
AddElement(tag, false);
} else if (name == Tags.NoEmbed) {
RawtextAlgorithm(tag);
} else if (name == Tags.NoScript) {
if (_scripting)
RawtextAlgorithm(tag);
else {
ReconstructFormatting();
AddElement(tag, false);
}
} else if (name == Tags.Math) {
MathElement mathElement = new MathElement(_document, name, null, NodeFlags.None);
ReconstructFormatting();
for (int i = 0; i < tag.Attributes.Count; i++) {
keyValuePair = tag.Attributes[i];
string key = keyValuePair.Key;
keyValuePair = tag.Attributes[i];
string value = keyValuePair.Value;
mathElement.AdjustAttribute(key.AdjustToMathAttribute(), value);
}
AddElement(mathElement);
if (tag.IsSelfClosing)
_openElements.Remove(mathElement);
} else if (name == Tags.Svg) {
SvgElement svgElement = new SvgElement(_document, name, null, NodeFlags.None);
ReconstructFormatting();
for (int j = 0; j < tag.Attributes.Count; j++) {
keyValuePair = tag.Attributes[j];
string key2 = keyValuePair.Key;
keyValuePair = tag.Attributes[j];
string value2 = keyValuePair.Value;
svgElement.AdjustAttribute(key2.AdjustToSvgAttribute(), value2);
}
AddElement(svgElement);
if (tag.IsSelfClosing)
_openElements.Remove(svgElement);
} else if (name == Tags.Plaintext) {
if (IsInButtonScope())
InBodyEndTagParagraph();
AddElement(tag, false);
_tokenizer.State = HtmlParseMode.Plaintext;
} else if (name == Tags.Frameset) {
RaiseErrorOccurred(HtmlParseError.FramesetMisplaced);
if (_openElements.Count != 1 && _openElements[1] is HtmlBodyElement && _frameset) {
_openElements[1].RemoveFromParent();
while (_openElements.Count > 1) {
CloseCurrentNode();
}
AddElement(new HtmlFrameSetElement(_document, null), tag, false);
_currentMode = HtmlTreeMode.InFrameset;
}
} else if (name == Tags.Html) {
RaiseErrorOccurred(HtmlParseError.HtmlTagMisplaced);
if (_templateModes.Count == 0)
_openElements[0].SetUniqueAttributes(tag.Attributes);
} else if (name == Tags.Body) {
RaiseErrorOccurred(HtmlParseError.BodyTagMisplaced);
if (_templateModes.Count == 0 && _openElements.Count > 1 && _openElements[1] is HtmlBodyElement) {
_frameset = false;
_openElements[1].SetUniqueAttributes(tag.Attributes);
}
} else if (name == Tags.IsIndex) {
RaiseErrorOccurred(HtmlParseError.TagInappropriate);
if (_currentFormElement == null) {
InBody(HtmlTagToken.Open(Tags.Form));
if (tag.GetAttribute(AttributeNames.Action) != string.Empty)
_currentFormElement.SetAttribute(null, AttributeNames.Action, tag.GetAttribute(AttributeNames.Action));
InBody(HtmlTagToken.Open(Tags.Hr));
InBody(HtmlTagToken.Open(Tags.Label));
if (tag.GetAttribute(AttributeNames.Prompt) != string.Empty)
AddCharacters(tag.GetAttribute(AttributeNames.Prompt));
else
AddCharacters("This is a searchable index. Enter search keywords: ");
HtmlTagToken htmlTagToken = HtmlTagToken.Open(Tags.Input);
htmlTagToken.AddAttribute(AttributeNames.Name, Tags.IsIndex);
for (int k = 0; k < tag.Attributes.Count; k++) {
keyValuePair = tag.Attributes[k];
if (!keyValuePair.Key.IsOneOf(AttributeNames.Name, AttributeNames.Action, AttributeNames.Prompt)) {
HtmlTagToken htmlTagToken2 = htmlTagToken;
keyValuePair = tag.Attributes[k];
string key3 = keyValuePair.Key;
keyValuePair = tag.Attributes[k];
htmlTagToken2.AddAttribute(key3, keyValuePair.Value);
}
}
InBody(htmlTagToken);
InBody(HtmlTagToken.Close(Tags.Label));
InBody(HtmlTagToken.Open(Tags.Hr));
InBody(HtmlTagToken.Close(Tags.Form));
}
} else {
ReconstructFormatting();
AddElement(tag, false);
}
}
private void InBodyEndTag(HtmlTagToken tag)
{
string name = tag.Name;
if (name == Tags.Div)
InBodyEndTagBlock(name);
else if (name == Tags.A) {
HeisenbergAlgorithm(tag);
} else if (name == Tags.Li) {
if (IsInListItemScope()) {
GenerateImpliedEndTagsExceptFor(name);
if (!(CurrentNode is HtmlListItemElement))
RaiseErrorOccurred(HtmlParseError.TagDoesNotMatchCurrentNode);
ClearStackBackTo<HtmlListItemElement>();
CloseCurrentNode();
} else
RaiseErrorOccurred(HtmlParseError.ListItemNotInScope);
} else if (name == Tags.P) {
InBodyEndTagParagraph();
} else if (name.IsOneOf(Tags.Ol, Tags.Ul, Tags.Dl, Tags.Fieldset, Tags.Button) || name.IsOneOf(Tags.Figcaption, Tags.Figure, Tags.Article, Tags.Aside, Tags.BlockQuote, Tags.Center) || name.IsOneOf(Tags.Address, Tags.Dialog, Tags.Dir, Tags.Summary, Tags.Details, Tags.Listing) || name.IsOneOf(Tags.Footer, Tags.Header, Tags.Nav, Tags.Section, Tags.Menu, Tags.Hgroup) || name.IsOneOf(Tags.Main, Tags.Pre)) {
InBodyEndTagBlock(name);
} else if (name.IsOneOf(Tags.B, Tags.Strong, Tags.Code) || name.IsOneOf(Tags.NoBr, Tags.Em, Tags.U, Tags.I) || name.IsOneOf(Tags.Font, Tags.S, Tags.Small, Tags.Strike, Tags.Big, Tags.Tt)) {
HeisenbergAlgorithm(tag);
} else if (name == Tags.Form) {
HtmlFormElement currentFormElement = _currentFormElement;
_currentFormElement = null;
if (currentFormElement != null && IsInScope(currentFormElement.LocalName)) {
GenerateImpliedEndTags();
if (CurrentNode != currentFormElement)
RaiseErrorOccurred(HtmlParseError.FormClosedWrong);
_openElements.Remove(currentFormElement);
} else
RaiseErrorOccurred(HtmlParseError.FormNotInScope);
} else if (name == Tags.Br) {
RaiseErrorOccurred(HtmlParseError.TagCannotEndHere);
InBodyStartTagBreakrow(HtmlTagToken.Open(Tags.Br));
} else if (name.IsOneOf(Tags.H3, Tags.H2, Tags.H4, Tags.H1, Tags.H6, Tags.H5)) {
if (IsInScope<HtmlHeadingElement>()) {
GenerateImpliedEndTags();
if (CurrentNode.LocalName != name)
RaiseErrorOccurred(HtmlParseError.TagDoesNotMatchCurrentNode);
ClearStackBackTo<HtmlHeadingElement>();
CloseCurrentNode();
} else
RaiseErrorOccurred(HtmlParseError.HeadingNotInScope);
} else if (name.IsOneOf(Tags.Dd, Tags.Dt)) {
if (IsInScope(name)) {
GenerateImpliedEndTagsExceptFor(name);
if (CurrentNode.LocalName != name)
RaiseErrorOccurred(HtmlParseError.TagDoesNotMatchCurrentNode);
ClearStackBackTo(name);
CloseCurrentNode();
} else
RaiseErrorOccurred(HtmlParseError.ListItemNotInScope);
} else if (name.IsOneOf(Tags.Applet, Tags.Marquee, Tags.Object)) {
if (IsInScope(name)) {
GenerateImpliedEndTags();
if (CurrentNode.LocalName != name)
RaiseErrorOccurred(HtmlParseError.TagDoesNotMatchCurrentNode);
ClearStackBackTo(name);
CloseCurrentNode();
_formattingElements.ClearFormatting();
} else
RaiseErrorOccurred(HtmlParseError.ObjectNotInScope);
} else if (name == Tags.Body) {
InBodyEndTagBody();
} else if (name == Tags.Html) {
if (InBodyEndTagBody())
AfterBody(tag);
} else if (name == Tags.Template) {
InHead(tag);
} else {
InBodyEndTagAnythingElse(tag);
}
}
private void InBody(HtmlToken token)
{
switch (token.Type) {
case HtmlTokenType.Character:
ReconstructFormatting();
AddCharacters(token.Data);
if (token.HasContent)
_frameset = false;
break;
case HtmlTokenType.StartTag:
InBodyStartTag(token.AsTag());
break;
case HtmlTokenType.EndTag:
InBodyEndTag(token.AsTag());
break;
case HtmlTokenType.Comment:
CurrentNode.AddComment(token);
break;
case HtmlTokenType.Doctype:
RaiseErrorOccurred(HtmlParseError.DoctypeTagInappropriate);
break;
case HtmlTokenType.EndOfFile:
CheckBodyOnClosing();
if (_templateModes.Count != 0)
InTemplate(token);
else
End();
break;
}
}
private void Text(HtmlToken token)
{
switch (token.Type) {
case HtmlTokenType.Comment:
break;
case HtmlTokenType.Character:
AddCharacters(token.Data);
break;
case HtmlTokenType.EndTag:
if (token.Name != Tags.Script) {
CloseCurrentNode();
_currentMode = _previousMode;
} else
_waiting = RunScript(CurrentNode as HtmlScriptElement);
break;
case HtmlTokenType.EndOfFile:
RaiseErrorOccurred(HtmlParseError.EOF);
CloseCurrentNode();
_currentMode = _previousMode;
Consume(token);
break;
}
}
private void InTable(HtmlToken token)
{
switch (token.Type) {
case HtmlTokenType.Comment:
CurrentNode.AddComment(token);
return;
case HtmlTokenType.Doctype:
RaiseErrorOccurred(HtmlParseError.DoctypeTagInappropriate);
return;
case HtmlTokenType.StartTag: {
string name2 = token.Name;
if (name2 == Tags.Caption) {
ClearStackBackTo<HtmlTableElement>();
_formattingElements.AddScopeMarker();
AddElement(new HtmlTableCaptionElement(_document, null), token.AsTag(), false);
_currentMode = HtmlTreeMode.InCaption;
} else if (name2 == Tags.Colgroup) {
ClearStackBackTo<HtmlTableElement>();
AddElement(new HtmlTableColgroupElement(_document, null), token.AsTag(), false);
_currentMode = HtmlTreeMode.InColumnGroup;
} else if (name2 == Tags.Col) {
InTable(HtmlTagToken.Open(Tags.Colgroup));
InColumnGroup(token);
} else if (name2.IsOneOf(Tags.Tbody, Tags.Thead, Tags.Tfoot)) {
ClearStackBackTo<HtmlTableElement>();
AddElement(new HtmlTableSectionElement(_document, name2, null), token.AsTag(), false);
_currentMode = HtmlTreeMode.InTableBody;
} else if (name2.IsOneOf(Tags.Td, Tags.Th, Tags.Tr)) {
InTable(HtmlTagToken.Open(Tags.Tbody));
InTableBody(token);
} else if (name2 == Tags.Table) {
RaiseErrorOccurred(HtmlParseError.TableNesting);
if (InTableEndTagTable())
Home(token);
} else if (name2.IsOneOf(Tags.Script, Tags.Style, Tags.Template)) {
InHead(token);
} else if (name2 == Tags.Input) {
HtmlTagToken htmlTagToken = token.AsTag();
if (htmlTagToken.GetAttribute(AttributeNames.Type).Equals(AttributeNames.Hidden, StringComparison.OrdinalIgnoreCase)) {
RaiseErrorOccurred(HtmlParseError.InputUnexpected);
AddElement(new HtmlInputElement(_document, null), htmlTagToken, true);
CloseCurrentNode();
} else {
RaiseErrorOccurred(HtmlParseError.TokenNotPossible);
InBodyWithFoster(token);
}
} else if (name2 == Tags.Form) {
RaiseErrorOccurred(HtmlParseError.FormInappropriate);
if (_currentFormElement == null) {
_currentFormElement = new HtmlFormElement(_document, null);
AddElement(_currentFormElement, token.AsTag(), false);
CloseCurrentNode();
}
} else {
RaiseErrorOccurred(HtmlParseError.IllegalElementInTableDetected);
InBodyWithFoster(token);
}
return;
}
case HtmlTokenType.EndTag: {
string name = token.Name;
if (name == Tags.Table)
InTableEndTagTable();
else if (name == Tags.Template) {
InHead(token);
} else if (name.IsOneOf(Tags.Body, Tags.Colgroup, Tags.Col, Tags.Caption, Tags.Html) || name.IsOneOf(Tags.Tbody, Tags.Tr, Tags.Thead, Tags.Th, Tags.Tfoot, Tags.Td)) {
RaiseErrorOccurred(HtmlParseError.TagCannotEndHere);
} else {
RaiseErrorOccurred(HtmlParseError.IllegalElementInTableDetected);
InBodyWithFoster(token);
}
return;
}
case HtmlTokenType.EndOfFile:
InBody(token);
return;
case HtmlTokenType.Character:
if (CurrentNode.IsTableElement()) {
InTableText(token);
return;
}
break;
}
RaiseErrorOccurred(HtmlParseError.TokenNotPossible);
InBodyWithFoster(token);
}
private void InTableText(HtmlToken token)
{
if (token.HasContent) {
RaiseErrorOccurred(HtmlParseError.TokenNotPossible);
InBodyWithFoster(token);
} else
AddCharacters(token.Data);
}
private void InCaption(HtmlToken token)
{
switch (token.Type) {
case HtmlTokenType.EndTag: {
string name2 = token.Name;
if (name2 == Tags.Caption) {
InCaptionEndTagCaption();
return;
}
if (name2.IsOneOf(Tags.Body, Tags.Th, Tags.Colgroup, Tags.Html) || name2.IsOneOf(Tags.Tbody, Tags.Col, Tags.Tfoot, Tags.Td, Tags.Thead, Tags.Tr)) {
RaiseErrorOccurred(HtmlParseError.TagCannotEndHere);
return;
}
if (name2 == Tags.Table) {
RaiseErrorOccurred(HtmlParseError.TableNesting);
if (InCaptionEndTagCaption())
InTable(token);
return;
}
break;
}
case HtmlTokenType.StartTag: {
string name = token.Name;
if (name.IsOneOf(Tags.Caption, Tags.Th, Tags.Colgroup) || name.IsOneOf(Tags.Tbody, Tags.Col, Tags.Tfoot, Tags.Td, Tags.Thead, Tags.Tr)) {
RaiseErrorOccurred(HtmlParseError.TagCannotStartHere);
if (InCaptionEndTagCaption())
InTable(token);
return;
}
break;
}
}
InBody(token);
}
private void InColumnGroup(HtmlToken token)
{
switch (token.Type) {
case HtmlTokenType.Character: {
string text = token.TrimStart();
AddCharacters(text);
if (token.IsEmpty)
return;
break;
}
case HtmlTokenType.Comment:
CurrentNode.AddComment(token);
return;
case HtmlTokenType.Doctype:
RaiseErrorOccurred(HtmlParseError.DoctypeTagInappropriate);
return;
case HtmlTokenType.StartTag: {
string name2 = token.Name;
if (name2 == Tags.Html) {
InBody(token);
return;
}
if (name2 == Tags.Col) {
AddElement(new HtmlTableColElement(_document, null), token.AsTag(), true);
CloseCurrentNode();
return;
}
if (name2 == Tags.Template) {
InHead(token);
return;
}
break;
}
case HtmlTokenType.EndTag: {
string name = token.Name;
if (name == Tags.Colgroup) {
InColumnGroupEndTagColgroup();
return;
}
if (name == Tags.Col) {
RaiseErrorOccurred(HtmlParseError.TagClosedWrong);
return;
}
if (name == Tags.Template) {
InHead(token);
return;
}
break;
}
case HtmlTokenType.EndOfFile:
InBody(token);
return;
}
if (InColumnGroupEndTagColgroup())
InTable(token);
}
private void InTableBody(HtmlToken token)
{
switch (token.Type) {
case HtmlTokenType.StartTag: {
string name2 = token.Name;
if (name2 == Tags.Tr) {
ClearStackBackTo<HtmlTableSectionElement>();
AddElement(new HtmlTableRowElement(_document, null), token.AsTag(), false);
_currentMode = HtmlTreeMode.InRow;
return;
}
if (name2.IsTableCellElement()) {
InTableBody(HtmlTagToken.Open(Tags.Tr));
InRow(token);
return;
}
if (name2.IsGeneralTableElement(false)) {
InTableBodyCloseTable(token.AsTag());
return;
}
break;
}
case HtmlTokenType.EndTag: {
string name = token.Name;
if (name.IsTableSectionElement()) {
if (IsInTableScope(name)) {
ClearStackBackTo<HtmlTableSectionElement>();
CloseCurrentNode();
_currentMode = HtmlTreeMode.InTable;
} else
RaiseErrorOccurred(HtmlParseError.TableSectionNotInScope);
return;
}
if (name.IsSpecialTableElement(true)) {
RaiseErrorOccurred(HtmlParseError.TagCannotEndHere);
return;
}
if (name == Tags.Table) {
InTableBodyCloseTable(token.AsTag());
return;
}
break;
}
}
InTable(token);
}
private void InRow(HtmlToken token)
{
switch (token.Type) {
case HtmlTokenType.StartTag: {
string name2 = token.Name;
if (name2.IsTableCellElement()) {
ClearStackBackTo<HtmlTableRowElement>();
AddElement(token.AsTag(), false);
_currentMode = HtmlTreeMode.InCell;
_formattingElements.AddScopeMarker();
return;
}
if (name2.IsGeneralTableElement(true)) {
if (InRowEndTagTablerow())
InTableBody(token);
return;
}
break;
}
case HtmlTokenType.EndTag: {
string name = token.Name;
if (name == Tags.Tr) {
InRowEndTagTablerow();
return;
}
if (name == Tags.Table) {
if (InRowEndTagTablerow())
InTableBody(token);
return;
}
if (name.IsTableSectionElement()) {
if (IsInTableScope(name)) {
InRowEndTagTablerow();
InTableBody(token);
} else
RaiseErrorOccurred(HtmlParseError.TableSectionNotInScope);
return;
}
if (name.IsSpecialTableElement(false)) {
RaiseErrorOccurred(HtmlParseError.TagCannotEndHere);
return;
}
break;
}
}
InTable(token);
}
private void InCell(HtmlToken token)
{
switch (token.Type) {
case HtmlTokenType.StartTag: {
string name2 = token.Name;
if (name2.IsTableCellElement() || name2.IsGeneralTableElement(true)) {
if (IsInTableScope(Tags.Td) || IsInTableScope(Tags.Th)) {
InCellEndTagCell();
Home(token);
} else
RaiseErrorOccurred(HtmlParseError.TableCellNotInScope);
return;
}
break;
}
case HtmlTokenType.EndTag: {
string name = token.Name;
if (name.IsTableCellElement())
InCellEndTagCell();
else if (name.IsSpecialTableElement(false)) {
RaiseErrorOccurred(HtmlParseError.TagCannotEndHere);
} else if (name.IsTableElement()) {
if (IsInTableScope(name)) {
InCellEndTagCell();
Home(token);
} else
RaiseErrorOccurred(HtmlParseError.TableNotInScope);
} else {
InBody(token);
}
return;
}
}
InBody(token);
}
private void InSelect(HtmlToken token)
{
switch (token.Type) {
case HtmlTokenType.Character:
AddCharacters(token.Data);
break;
case HtmlTokenType.Comment:
CurrentNode.AddComment(token);
break;
case HtmlTokenType.Doctype:
RaiseErrorOccurred(HtmlParseError.DoctypeTagInappropriate);
break;
case HtmlTokenType.StartTag: {
string name2 = token.Name;
if (name2 == Tags.Html)
InBody(token);
else if (name2 == Tags.Option) {
if (CurrentNode is HtmlOptionElement)
InSelectEndTagOption();
AddElement(new HtmlOptionElement(_document, null), token.AsTag(), false);
} else if (name2 == Tags.Optgroup) {
if (CurrentNode is HtmlOptionElement)
InSelectEndTagOption();
if (CurrentNode is HtmlOptionsGroupElement)
InSelectEndTagOptgroup();
AddElement(new HtmlOptionsGroupElement(_document, null), token.AsTag(), false);
} else if (name2 == Tags.Select) {
RaiseErrorOccurred(HtmlParseError.SelectNesting);
InSelectEndTagSelect();
} else if (name2.IsOneOf(Tags.Input, Tags.Keygen, Tags.Textarea)) {
RaiseErrorOccurred(HtmlParseError.IllegalElementInSelectDetected);
if (IsInSelectScope(Tags.Select)) {
InSelectEndTagSelect();
Home(token);
}
} else if (name2.IsOneOf(Tags.Template, Tags.Script)) {
InHead(token);
} else {
RaiseErrorOccurred(HtmlParseError.IllegalElementInSelectDetected);
}
break;
}
case HtmlTokenType.EndTag: {
string name = token.Name;
if (name == Tags.Template)
InHead(token);
else if (name == Tags.Optgroup) {
InSelectEndTagOptgroup();
} else if (name == Tags.Option) {
InSelectEndTagOption();
} else if (name == Tags.Select && IsInSelectScope(Tags.Select)) {
InSelectEndTagSelect();
} else if (name == Tags.Select) {
RaiseErrorOccurred(HtmlParseError.SelectNotInScope);
} else {
RaiseErrorOccurred(HtmlParseError.TagCannotEndHere);
}
break;
}
case HtmlTokenType.EndOfFile:
InBody(token);
break;
default:
RaiseErrorOccurred(HtmlParseError.TokenNotPossible);
break;
}
}
private void InSelectInTable(HtmlToken token)
{
switch (token.Type) {
case HtmlTokenType.StartTag: {
string name2 = token.Name;
if (name2.IsTableCellElement() || name2.IsTableElement() || name2 == Tags.Caption) {
RaiseErrorOccurred(HtmlParseError.IllegalElementInSelectDetected);
InSelectEndTagSelect();
Home(token);
return;
}
break;
}
case HtmlTokenType.EndTag: {
string name = token.Name;
if (name.IsTableCellElement() || name.IsTableElement() || name == Tags.Caption) {
RaiseErrorOccurred(HtmlParseError.TagCannotEndHere);
if (IsInTableScope(name)) {
InSelectEndTagSelect();
Home(token);
}
return;
}
break;
}
}
InSelect(token);
}
private void InTemplate(HtmlToken token)
{
switch (token.Type) {
case HtmlTokenType.StartTag: {
string name = token.Name;
if (name.IsOneOf(Tags.Link, Tags.Meta, Tags.Script, Tags.Style) || name.IsOneOf(Tags.Base, Tags.BaseFont, Tags.Bgsound, Tags.NoFrames, Tags.Template, Tags.Title))
InHead(token);
else if (name.IsOneOf(Tags.Caption, Tags.Colgroup, Tags.Tbody, Tags.Tfoot, Tags.Thead)) {
TemplateStep(token, HtmlTreeMode.InTable);
} else if (name == Tags.Col) {
TemplateStep(token, HtmlTreeMode.InColumnGroup);
} else if (name == Tags.Tr) {
TemplateStep(token, HtmlTreeMode.InTableBody);
} else if (name.IsOneOf(Tags.Td, Tags.Th)) {
TemplateStep(token, HtmlTreeMode.InRow);
} else {
TemplateStep(token, HtmlTreeMode.InBody);
}
break;
}
case HtmlTokenType.EndTag:
if (token.Name == Tags.Template)
InHead(token);
else
RaiseErrorOccurred(HtmlParseError.TagCannotEndHere);
break;
case HtmlTokenType.EndOfFile:
if (TagCurrentlyOpen(Tags.Template)) {
RaiseErrorOccurred(HtmlParseError.EOF);
CloseTemplate();
Home(token);
} else
End();
break;
default:
InBody(token);
break;
}
}
private void AfterBody(HtmlToken token)
{
switch (token.Type) {
case HtmlTokenType.Character: {
string text = token.TrimStart();
ReconstructFormatting();
AddCharacters(text);
if (token.IsEmpty)
return;
break;
}
case HtmlTokenType.Comment:
_openElements[0].AddComment(token);
return;
case HtmlTokenType.Doctype:
RaiseErrorOccurred(HtmlParseError.DoctypeTagInappropriate);
return;
case HtmlTokenType.StartTag:
if (token.Name == Tags.Html) {
InBody(token);
return;
}
break;
case HtmlTokenType.EndTag:
if (token.Name == Tags.Html) {
if (IsFragmentCase)
RaiseErrorOccurred(HtmlParseError.TagInvalidInFragmentMode);
else
_currentMode = HtmlTreeMode.AfterAfterBody;
return;
}
break;
case HtmlTokenType.EndOfFile:
End();
return;
}
RaiseErrorOccurred(HtmlParseError.TokenNotPossible);
_currentMode = HtmlTreeMode.InBody;
InBody(token);
}
private void InFrameset(HtmlToken token)
{
switch (token.Type) {
case HtmlTokenType.Character: {
string text = token.TrimStart();
AddCharacters(text);
if (token.IsEmpty)
return;
break;
}
case HtmlTokenType.Comment:
CurrentNode.AddComment(token);
return;
case HtmlTokenType.Doctype:
RaiseErrorOccurred(HtmlParseError.DoctypeTagInappropriate);
return;
case HtmlTokenType.StartTag: {
string name = token.Name;
if (name == Tags.Html) {
InBody(token);
return;
}
if (name == Tags.Frameset) {
AddElement(new HtmlFrameSetElement(_document, null), token.AsTag(), false);
return;
}
if (name == Tags.Frame) {
AddElement(new HtmlFrameElement(_document, null), token.AsTag(), true);
CloseCurrentNode();
return;
}
if (name == Tags.NoFrames) {
InHead(token);
return;
}
break;
}
case HtmlTokenType.EndTag:
if (!(token.Name != Tags.Frameset)) {
if (CurrentNode != _openElements[0]) {
CloseCurrentNode();
if (!IsFragmentCase && !(CurrentNode is HtmlFrameSetElement))
_currentMode = HtmlTreeMode.AfterFrameset;
} else
RaiseErrorOccurred(HtmlParseError.CurrentNodeIsRoot);
return;
}
break;
case HtmlTokenType.EndOfFile:
if (CurrentNode != _document.DocumentElement)
RaiseErrorOccurred(HtmlParseError.CurrentNodeIsNotRoot);
End();
return;
}
RaiseErrorOccurred(HtmlParseError.TokenNotPossible);
}
private void AfterFrameset(HtmlToken token)
{
switch (token.Type) {
case HtmlTokenType.Character: {
string text = token.TrimStart();
AddCharacters(text);
if (token.IsEmpty)
return;
break;
}
case HtmlTokenType.Comment:
CurrentNode.AddComment(token);
return;
case HtmlTokenType.Doctype:
RaiseErrorOccurred(HtmlParseError.DoctypeTagInappropriate);
return;
case HtmlTokenType.StartTag: {
string name = token.Name;
if (name == Tags.Html) {
InBody(token);
return;
}
if (name == Tags.NoFrames) {
InHead(token);
return;
}
break;
}
case HtmlTokenType.EndTag:
if (!(token.Name != Tags.Html)) {
_currentMode = HtmlTreeMode.AfterAfterFrameset;
return;
}
break;
case HtmlTokenType.EndOfFile:
End();
return;
}
RaiseErrorOccurred(HtmlParseError.TokenNotPossible);
}
private void AfterAfterBody(HtmlToken token)
{
switch (token.Type) {
case HtmlTokenType.Comment:
_document.AddComment(token);
return;
case HtmlTokenType.Character: {
string text = token.TrimStart();
ReconstructFormatting();
AddCharacters(text);
if (token.IsEmpty)
return;
break;
}
case HtmlTokenType.Doctype:
InBody(token);
return;
case HtmlTokenType.StartTag:
if (!(token.Name != Tags.Html)) {
InBody(token);
return;
}
break;
case HtmlTokenType.EndOfFile:
End();
return;
}
RaiseErrorOccurred(HtmlParseError.TokenNotPossible);
_currentMode = HtmlTreeMode.InBody;
InBody(token);
}
private void AfterAfterFrameset(HtmlToken token)
{
switch (token.Type) {
case HtmlTokenType.Comment:
_document.AddComment(token);
return;
case HtmlTokenType.Character: {
string text = token.TrimStart();
ReconstructFormatting();
AddCharacters(text);
if (token.IsEmpty)
return;
break;
}
case HtmlTokenType.Doctype:
InBody(token);
return;
case HtmlTokenType.StartTag: {
string name = token.Name;
if (name == Tags.Html) {
InBody(token);
return;
}
if (name == Tags.NoFrames) {
InHead(token);
return;
}
break;
}
case HtmlTokenType.EndOfFile:
End();
return;
}
RaiseErrorOccurred(HtmlParseError.TokenNotPossible);
}
private void TemplateStep(HtmlToken token, HtmlTreeMode mode)
{
_templateModes.Pop();
_templateModes.Push(mode);
_currentMode = mode;
Home(token);
}
private void CloseTemplate()
{
while (_openElements.Count > 0) {
HtmlTemplateElement htmlTemplateElement = CurrentNode as HtmlTemplateElement;
CloseCurrentNode();
if (htmlTemplateElement != null) {
htmlTemplateElement.PopulateFragment();
break;
}
}
_formattingElements.ClearFormatting();
_templateModes.Pop();
Reset(null);
}
private void InTableBodyCloseTable(HtmlTagToken tag)
{
if (IsInTableScope<HtmlTableSectionElement>()) {
ClearStackBackTo<HtmlTableSectionElement>();
CloseCurrentNode();
_currentMode = HtmlTreeMode.InTable;
InTable(tag);
} else
RaiseErrorOccurred(HtmlParseError.TableSectionNotInScope);
}
private void InSelectEndTagOption()
{
if (CurrentNode is HtmlOptionElement)
CloseCurrentNode();
else
RaiseErrorOccurred(HtmlParseError.TagDoesNotMatchCurrentNode);
}
private void InSelectEndTagOptgroup()
{
if (_openElements.Count > 1 && _openElements[_openElements.Count - 1] is HtmlOptionElement && _openElements[_openElements.Count - 2] is HtmlOptionsGroupElement)
CloseCurrentNode();
if (CurrentNode is HtmlOptionsGroupElement)
CloseCurrentNode();
else
RaiseErrorOccurred(HtmlParseError.TagDoesNotMatchCurrentNode);
}
private bool InColumnGroupEndTagColgroup()
{
if (CurrentNode.LocalName == Tags.Colgroup) {
CloseCurrentNode();
_currentMode = HtmlTreeMode.InTable;
return true;
}
RaiseErrorOccurred(HtmlParseError.TagDoesNotMatchCurrentNode);
return false;
}
private void AfterHeadStartTagBody(HtmlTagToken token)
{
AddElement(new HtmlBodyElement(_document, null), token, false);
_frameset = false;
_currentMode = HtmlTreeMode.InBody;
}
private void RawtextAlgorithm(HtmlTagToken tag)
{
AddElement(tag, false);
_previousMode = _currentMode;
_currentMode = HtmlTreeMode.Text;
_tokenizer.State = HtmlParseMode.Rawtext;
}
private void RCDataAlgorithm(HtmlTagToken tag)
{
AddElement(tag, false);
_previousMode = _currentMode;
_currentMode = HtmlTreeMode.Text;
_tokenizer.State = HtmlParseMode.RCData;
}
private void InBodyStartTagListItem(HtmlTagToken tag)
{
int num = _openElements.Count - 1;
Element element = _openElements[num];
_frameset = false;
while (true) {
if (element is HtmlListItemElement && element.LocalName == Tags.Li) {
InBody(HtmlTagToken.Close(element.LocalName));
break;
}
if (!(element is HtmlAddressElement) && !(element is HtmlDivElement) && !(element is HtmlParagraphElement) && element.Flags.HasFlag(NodeFlags.Special))
break;
element = _openElements[--num];
}
if (IsInButtonScope())
InBodyEndTagParagraph();
AddElement(tag, false);
}
private void InBodyStartTagDefinitionItem(HtmlTagToken tag)
{
_frameset = false;
int num = _openElements.Count - 1;
Element element = _openElements[num];
while (true) {
if (element is HtmlListItemElement && (element.LocalName == Tags.Dd || element.LocalName == Tags.Dt)) {
InBody(HtmlTagToken.Close(element.LocalName));
break;
}
if (element.Flags.HasFlag(NodeFlags.Special) && !(element is HtmlAddressElement) && !(element is HtmlDivElement) && !(element is HtmlParagraphElement))
break;
element = _openElements[--num];
}
if (IsInButtonScope())
InBodyEndTagParagraph();
AddElement(tag, false);
}
private bool InBodyEndTagBlock(string tagName)
{
if (IsInScope(tagName)) {
GenerateImpliedEndTags();
if (CurrentNode.LocalName != tagName)
RaiseErrorOccurred(HtmlParseError.TagDoesNotMatchCurrentNode);
ClearStackBackTo(tagName);
CloseCurrentNode();
return true;
}
RaiseErrorOccurred(HtmlParseError.BlockNotInScope);
return false;
}
private void HeisenbergAlgorithm(HtmlTagToken tag)
{
int num = 0;
int num2 = 0;
int num3 = 0;
int num4 = 0;
Element element;
Element element2;
while (true) {
if (num >= 8)
return;
element = null;
element2 = null;
num++;
num4 = 0;
num2 = 0;
for (int num5 = _formattingElements.Count - 1; num5 >= 0; num5--) {
if (_formattingElements[num5] == null)
break;
if (_formattingElements[num5].LocalName == tag.Name) {
num4 = num5;
element = _formattingElements[num5];
break;
}
}
if (element == null) {
InBodyEndTagAnythingElse(tag);
return;
}
int num6 = _openElements.IndexOf(element);
if (num6 == -1) {
RaiseErrorOccurred(HtmlParseError.FormattingElementNotFound);
_formattingElements.Remove(element);
return;
}
if (!IsInScope(element.LocalName)) {
RaiseErrorOccurred(HtmlParseError.ElementNotInScope);
return;
}
if (num6 != _openElements.Count - 1)
RaiseErrorOccurred(HtmlParseError.TagClosedWrong);
num3 = num4;
for (int i = num6 + 1; i < _openElements.Count; i++) {
if (_openElements[i].Flags.HasFlag(NodeFlags.Special)) {
num4 = i;
element2 = _openElements[i];
break;
}
}
if (element2 == null)
break;
Element element3 = _openElements[num6 - 1];
Element element4 = element2;
Element element5 = element2;
while (true) {
num2++;
element4 = _openElements[--num4];
if (element4 == element)
break;
if (num2 > 3 && _formattingElements.Contains(element4))
_formattingElements.Remove(element4);
if (!_formattingElements.Contains(element4))
_openElements.Remove(element4);
else {
Element element6 = CopyElement(element4);
element3.AddNode(element6);
_openElements[num4] = element6;
for (int j = 0; j != _formattingElements.Count; j++) {
if (_formattingElements[j] == element4) {
_formattingElements[j] = element6;
break;
}
}
element4 = element6;
if (element5 == element2)
num3++;
if (element5.Parent != null)
element5.Parent.RemoveChild(element5);
element4.AddNode(element5);
element5 = element4;
}
}
if (element5.Parent != null)
element5.Parent.RemoveChild(element5);
if (!element3.IsTableElement())
element3.AddNode(element5);
else
AddElementWithFoster(element5);
Element element7 = CopyElement(element);
while (element2.ChildNodes.Length > 0) {
Node node = element2.ChildNodes[0];
element2.RemoveNode(0, node);
element7.AddNode(node);
}
element2.AddNode(element7);
_formattingElements.Remove(element);
_formattingElements.Insert(num3, element7);
_openElements.Remove(element);
_openElements.Insert(_openElements.IndexOf(element2) + 1, element7);
}
do {
element2 = CurrentNode;
CloseCurrentNode();
} while (element2 != element);
_formattingElements.Remove(element);
}
private Element CopyElement(Element element)
{
return (Element)element.Clone(false);
}
private void InBodyWithFoster(HtmlToken token)
{
_foster = true;
InBody(token);
_foster = false;
}
private void InBodyEndTagAnythingElse(HtmlTagToken tag)
{
int num = _openElements.Count - 1;
Element element = CurrentNode;
while (true) {
if (element.LocalName == tag.Name) {
GenerateImpliedEndTagsExceptFor(tag.Name);
if (element.LocalName != tag.Name)
RaiseErrorOccurred(HtmlParseError.TagClosedWrong);
int num2 = _openElements.Count - 1;
while (num <= num2) {
CloseCurrentNode();
num2--;
}
return;
}
if (element.Flags.HasFlag(NodeFlags.Special))
break;
element = _openElements[--num];
}
RaiseErrorOccurred(HtmlParseError.TagClosedWrong);
}
private bool InBodyEndTagBody()
{
if (IsInScope<HtmlBodyElement>()) {
CheckBodyOnClosing();
_currentMode = HtmlTreeMode.AfterBody;
return true;
}
RaiseErrorOccurred(HtmlParseError.BodyNotInScope);
return false;
}
private void InBodyStartTagBreakrow(HtmlTagToken tag)
{
ReconstructFormatting();
AddElement(tag, false);
CloseCurrentNode();
_frameset = false;
}
private bool InBodyEndTagParagraph()
{
if (IsInButtonScope()) {
GenerateImpliedEndTagsExceptFor(Tags.P);
if (!(CurrentNode is HtmlParagraphElement))
RaiseErrorOccurred(HtmlParseError.TagDoesNotMatchCurrentNode);
ClearStackBackTo<HtmlParagraphElement>();
CloseCurrentNode();
return true;
}
RaiseErrorOccurred(HtmlParseError.ParagraphNotInScope);
InBody(HtmlTagToken.Open(Tags.P));
InBodyEndTagParagraph();
return false;
}
private bool InTableEndTagTable()
{
if (IsInTableScope<HtmlTableElement>()) {
ClearStackBackTo<HtmlTableElement>();
CloseCurrentNode();
Reset(null);
return true;
}
RaiseErrorOccurred(HtmlParseError.TableNotInScope);
return false;
}
private bool InRowEndTagTablerow()
{
if (IsInTableScope<HtmlTableRowElement>()) {
ClearStackBackTo<HtmlTableRowElement>();
CloseCurrentNode();
_currentMode = HtmlTreeMode.InTableBody;
return true;
}
RaiseErrorOccurred(HtmlParseError.TableRowNotInScope);
return false;
}
private void InSelectEndTagSelect()
{
ClearStackBackTo<HtmlSelectElement>();
CloseCurrentNode();
Reset(null);
}
private bool InCaptionEndTagCaption()
{
if (IsInTableScope<HtmlTableCaptionElement>()) {
GenerateImpliedEndTags();
if (!(CurrentNode is HtmlTableCaptionElement))
RaiseErrorOccurred(HtmlParseError.TagDoesNotMatchCurrentNode);
ClearStackBackTo<HtmlTableCaptionElement>();
CloseCurrentNode();
_formattingElements.ClearFormatting();
_currentMode = HtmlTreeMode.InTable;
return true;
}
RaiseErrorOccurred(HtmlParseError.CaptionNotInScope);
return false;
}
private bool InCellEndTagCell()
{
if (IsInTableScope<HtmlTableCellElement>()) {
GenerateImpliedEndTags();
if (!(CurrentNode is HtmlTableCellElement))
RaiseErrorOccurred(HtmlParseError.TagDoesNotMatchCurrentNode);
ClearStackBackTo<HtmlTableCellElement>();
CloseCurrentNode();
_formattingElements.ClearFormatting();
_currentMode = HtmlTreeMode.InRow;
return true;
}
RaiseErrorOccurred(HtmlParseError.TableCellNotInScope);
return false;
}
private void Foreign(HtmlToken token)
{
switch (token.Type) {
case HtmlTokenType.Character:
AddCharacters(token.Data.Replace(' ', '�'));
if (token.HasContent)
_frameset = false;
break;
case HtmlTokenType.Comment:
CurrentNode.AddComment(token);
break;
case HtmlTokenType.Doctype:
RaiseErrorOccurred(HtmlParseError.DoctypeTagInappropriate);
break;
case HtmlTokenType.StartTag: {
string name2 = token.Name;
HtmlTagToken htmlTagToken = token.AsTag();
if (name2 == Tags.Font) {
for (int i = 0; i != htmlTagToken.Attributes.Count; i++) {
if (htmlTagToken.Attributes[i].Key.IsOneOf(AttributeNames.Color, AttributeNames.Face, AttributeNames.Size)) {
ForeignNormalTag(htmlTagToken);
return;
}
}
ForeignSpecialTag(htmlTagToken);
} else if (name2.IsOneOf(Tags.B, Tags.Big, Tags.BlockQuote, Tags.Body, Tags.Br, Tags.Center) || name2.IsOneOf(Tags.Code, Tags.Dd, Tags.Div, Tags.Dl, Tags.Dt, Tags.Em) || name2.IsOneOf(Tags.Embed, Tags.Head, Tags.Hr, Tags.I, Tags.Img, Tags.Li, Tags.Ul) || name2.IsOneOf(Tags.H3, Tags.H2, Tags.H4, Tags.H1, Tags.H6, Tags.H5) || name2.IsOneOf(Tags.Listing, Tags.Menu, Tags.Meta, Tags.NoBr, Tags.Ol) || name2.IsOneOf(Tags.P, Tags.Pre, Tags.Ruby, Tags.S, Tags.Small, Tags.Span, Tags.Strike) || name2.IsOneOf(Tags.Strong, Tags.Sub, Tags.Sup, Tags.Table, Tags.Tt, Tags.U, Tags.Var)) {
ForeignNormalTag(htmlTagToken);
} else {
ForeignSpecialTag(htmlTagToken);
}
break;
}
case HtmlTokenType.EndTag: {
string name = token.Name;
Element element = CurrentNode;
HtmlScriptElement htmlScriptElement = element as HtmlScriptElement;
if (htmlScriptElement == null) {
if (element.LocalName != name)
RaiseErrorOccurred(HtmlParseError.TagClosingMismatch);
int num = _openElements.Count - 1;
while (true) {
if (num <= 0)
return;
if (element.LocalName.Equals(name, StringComparison.OrdinalIgnoreCase)) {
_openElements.RemoveRange(num + 1, _openElements.Count - num - 1);
CloseCurrentNode();
return;
}
element = _openElements[num - 1];
if (element.Flags.HasFlag(NodeFlags.HtmlMember))
break;
num--;
}
Home(token);
} else
_waiting = RunScript(htmlScriptElement);
break;
}
}
}
private void ForeignSpecialTag(HtmlTagToken tag)
{
Element element = CreateForeignElementFrom(tag);
if (element != null) {
CurrentNode.AddNode(element);
if (!tag.IsSelfClosing) {
_openElements.Add(element);
_tokenizer.IsAcceptingCharacterData = true;
} else if (tag.Name == Tags.Script) {
Foreign(HtmlTagToken.Close(Tags.Script));
}
}
}
private Element CreateForeignElementFrom(HtmlTagToken tag)
{
KeyValuePair<string, string> keyValuePair;
if (AdjustedCurrentNode.Flags.HasFlag(NodeFlags.MathMember)) {
MathElement mathElement = Factory.MathElements.Create(_document, tag.Name, null);
for (int i = 0; i < tag.Attributes.Count; i++) {
keyValuePair = tag.Attributes[i];
string key = keyValuePair.Key;
keyValuePair = tag.Attributes[i];
string value = keyValuePair.Value;
mathElement.AdjustAttribute(key.AdjustToMathAttribute(), value);
}
return mathElement;
}
if (AdjustedCurrentNode.Flags.HasFlag(NodeFlags.SvgMember)) {
SvgElement svgElement = Factory.SvgElements.CreateSanatized(_document, tag.Name);
for (int j = 0; j < tag.Attributes.Count; j++) {
keyValuePair = tag.Attributes[j];
string key2 = keyValuePair.Key;
keyValuePair = tag.Attributes[j];
string value2 = keyValuePair.Value;
svgElement.AdjustAttribute(key2.AdjustToSvgAttribute(), value2);
}
return svgElement;
}
return null;
}
private void ForeignNormalTag(HtmlTagToken tag)
{
RaiseErrorOccurred(HtmlParseError.TagCannotStartHere);
if (IsFragmentCase)
ForeignSpecialTag(tag);
else {
Element currentNode = CurrentNode;
do {
if (currentNode is MathAnnotationXmlElement) {
string attribute = currentNode.GetAttribute(null, AttributeNames.Encoding);
if (!string.IsNullOrEmpty(attribute) && (attribute.Equals(MimeTypes.Html, StringComparison.OrdinalIgnoreCase) || attribute.Equals(MimeTypes.ApplicationXHtml, StringComparison.OrdinalIgnoreCase))) {
AddElement(tag, false);
return;
}
}
CloseCurrentNode();
currentNode = CurrentNode;
} while ((currentNode.Flags & (NodeFlags.HtmlMember | NodeFlags.HtmlTip | NodeFlags.MathTip)) == NodeFlags.None);
Consume(tag);
}
}
private bool IsInScope(string tagName)
{
for (int num = _openElements.Count - 1; num >= 0; num--) {
Element element = _openElements[num];
if (element.LocalName == tagName)
return true;
if (element.Flags.HasFlag(NodeFlags.Scoped))
return false;
}
return false;
}
private bool IsInScope<T>()
{
for (int num = _openElements.Count - 1; num >= 0; num--) {
Element element = _openElements[num];
if (element is T)
return true;
if (element.Flags.HasFlag(NodeFlags.Scoped))
return false;
}
return false;
}
private bool IsInListItemScope()
{
for (int num = _openElements.Count - 1; num >= 0; num--) {
Element element = _openElements[num];
if (element is HtmlListItemElement)
return true;
if (element.Flags.HasFlag(NodeFlags.HtmlListScoped))
return false;
}
return false;
}
private bool IsInButtonScope()
{
for (int num = _openElements.Count - 1; num >= 0; num--) {
Element element = _openElements[num];
if (element is HtmlParagraphElement)
return true;
if (element.Flags.HasFlag(NodeFlags.Scoped) || element is HtmlButtonElement)
return false;
}
return false;
}
private bool IsInTableScope<T>()
{
for (int num = _openElements.Count - 1; num >= 0; num--) {
Element element = _openElements[num];
if (element is T)
return true;
if (element.Flags.HasFlag(NodeFlags.HtmlTableScoped))
return false;
}
return false;
}
private bool IsInTableScope(string tagName)
{
for (int num = _openElements.Count - 1; num >= 0; num--) {
Element element = _openElements[num];
if (element.LocalName == tagName)
return true;
if (element.Flags.HasFlag(NodeFlags.HtmlTableScoped))
return false;
}
return false;
}
private bool IsInSelectScope(string tagName)
{
for (int num = _openElements.Count - 1; num >= 0; num--) {
Element element = _openElements[num];
if (element.LocalName == tagName)
return true;
if (!element.Flags.HasFlag(NodeFlags.HtmlSelectScoped))
return false;
}
return false;
}
private void Kernel()
{
HtmlToken htmlToken = null;
do {
if (_waiting != null && _waiting.Status == TaskStatus.Running)
_waiting.Wait();
htmlToken = _tokenizer.Get();
Consume(htmlToken);
} while (htmlToken.Type != HtmlTokenType.EndOfFile);
}
private async Task<IHtmlDocument> KernelAsync(CancellationToken cancelToken)
{
TextSource source = _document.Source;
HtmlToken htmlToken;
do {
if (source.Length - source.Index < 1024)
await AwaitExtensions.ConfigureAwait(source.Prefetch(8192, cancelToken), false);
if (_waiting != null && _waiting.Status == TaskStatus.Running)
await AwaitExtensions.ConfigureAwait(_waiting, false);
htmlToken = _tokenizer.Get();
Consume(htmlToken);
} while (htmlToken.Type != HtmlTokenType.EndOfFile);
return _document;
}
private async Task RunScript(HtmlScriptElement script)
{
if (script != null && !IsFragmentCase) {
_document.PerformMicrotaskCheckpoint();
_document.ProvideStableState();
CloseCurrentNode();
_currentMode = _previousMode;
_nested++;
script.Prepare();
_nested--;
if (_currentScriptElement != null && _nested == 0) {
do {
script = _currentScriptElement;
_currentScriptElement = null;
await AwaitExtensions.ConfigureAwait(_document.WaitForReady(), false);
_nested++;
script.Run();
_nested--;
_tokenizer.ResetInsertionPoint();
} while (_currentScriptElement != null);
}
}
}
private void CheckBodyOnClosing()
{
int num = 0;
while (true) {
if (num >= _openElements.Count)
return;
if (!_openElements[num].Flags.HasFlag(NodeFlags.ImplicitelyClosed))
break;
num++;
}
RaiseErrorOccurred(HtmlParseError.BodyClosedWrong);
}
private bool TagCurrentlyOpen(string tagName)
{
for (int i = 0; i < _openElements.Count; i++) {
if (_openElements[i].LocalName == tagName)
return true;
}
return false;
}
private void PreventNewLine()
{
HtmlToken htmlToken = _tokenizer.Get();
if (htmlToken.Type == HtmlTokenType.Character)
htmlToken.RemoveNewLine();
Home(htmlToken);
}
private void End()
{
while (_openElements.Count != 0) {
CloseCurrentNode();
}
if (_document.ReadyState == DocumentReadyState.Loading)
_waiting = _document.FinishLoading();
}
private void AddDoctype(HtmlDoctypeToken token)
{
_document.AddNode(new DocumentType(_document, token.Name ?? string.Empty) {
SystemIdentifier = token.SystemIdentifier,
PublicIdentifier = token.PublicIdentifier
});
}
private void AddRoot(HtmlTagToken tag)
{
HtmlHtmlElement htmlHtmlElement = new HtmlHtmlElement(_document, null);
_document.AddNode(htmlHtmlElement);
SetupElement(htmlHtmlElement, tag, false);
_openElements.Add(htmlHtmlElement);
_tokenizer.IsAcceptingCharacterData = false;
_document.ApplyManifest(htmlHtmlElement);
}
private void CloseCurrentNode()
{
if (_openElements.Count > 0) {
_openElements.RemoveAt(_openElements.Count - 1);
Element adjustedCurrentNode = AdjustedCurrentNode;
_tokenizer.IsAcceptingCharacterData = (adjustedCurrentNode != null && !adjustedCurrentNode.Flags.HasFlag(NodeFlags.HtmlMember));
}
}
private void SetupElement(Element element, HtmlTagToken tag, bool acknowledgeSelfClosing)
{
if (tag.IsSelfClosing && !acknowledgeSelfClosing)
RaiseErrorOccurred(HtmlParseError.TagCannotBeSelfClosed);
element.SetAttributes(tag.Attributes);
}
private Element AddElement(HtmlTagToken tag, bool acknowledgeSelfClosing = false)
{
HtmlElement htmlElement = Factory.HtmlElements.Create(_document, tag.Name, null);
SetupElement(htmlElement, tag, acknowledgeSelfClosing);
AddElement(htmlElement);
return htmlElement;
}
private TElement AddElement<TElement>(HtmlTagToken tag, bool acknowledgeSelfClosing = false) where TElement : Element, new
{
TElement val = new TElement();
val.Owner = _document;
TElement val2 = val;
SetupElement(val2, tag, acknowledgeSelfClosing);
AddElement(val2);
return val2;
}
private void AddElement(Element element, HtmlTagToken tag, bool acknowledgeSelfClosing = false)
{
SetupElement(element, tag, acknowledgeSelfClosing);
AddElement(element);
}
private void AddElement(Element element)
{
Element currentNode = CurrentNode;
if (_foster && currentNode.IsTableElement())
AddElementWithFoster(element);
else
currentNode.AddNode(element);
_openElements.Add(element);
_tokenizer.IsAcceptingCharacterData = !element.Flags.HasFlag(NodeFlags.HtmlMember);
}
private void AddElementWithFoster(Element element)
{
bool flag = false;
int num = _openElements.Count;
while (--num != 0) {
if (_openElements[num] is HtmlTemplateElement) {
_openElements[num].AddNode(element);
return;
}
if (_openElements[num] is HtmlTableElement) {
flag = true;
break;
}
}
Node node = _openElements[num].Parent ?? _openElements[num + 1];
if (flag && _openElements[num].Parent != null) {
int num2 = 0;
while (true) {
if (num2 >= node.ChildNodes.Length)
return;
if (node.ChildNodes[num2] == _openElements[num])
break;
num2++;
}
node.InsertNode(num2, element);
} else
node.AddNode(element);
}
private void AddCharacters(string text)
{
if (!string.IsNullOrEmpty(text)) {
Element currentNode = CurrentNode;
if (_foster && currentNode.IsTableElement())
AddCharactersWithFoster(text);
else
currentNode.AppendText(text);
}
}
private void AddCharactersWithFoster(string text)
{
bool flag = false;
int num = _openElements.Count;
while (--num != 0) {
if (_openElements[num] is HtmlTemplateElement) {
_openElements[num].AppendText(text);
return;
}
if (_openElements[num] is HtmlTableElement) {
flag = true;
break;
}
}
Node node = _openElements[num].Parent ?? _openElements[num + 1];
if (flag && _openElements[num].Parent != null) {
int num2 = 0;
while (true) {
if (num2 >= node.ChildNodes.Length)
return;
if (node.ChildNodes[num2] == _openElements[num])
break;
num2++;
}
node.InsertText(num2, text);
} else
node.AppendText(text);
}
private void ClearStackBackTo(string tagName)
{
Element currentNode = CurrentNode;
while (currentNode.LocalName != tagName && !(currentNode is HtmlHtmlElement) && !(currentNode is HtmlTemplateElement)) {
CloseCurrentNode();
currentNode = CurrentNode;
}
}
private void ClearStackBackTo<T>()
{
Element currentNode = CurrentNode;
while (!(currentNode is T) && !(currentNode is HtmlHtmlElement) && !(currentNode is HtmlTemplateElement)) {
CloseCurrentNode();
currentNode = CurrentNode;
}
}
private void GenerateImpliedEndTagsExceptFor(string tagName)
{
Element currentNode = CurrentNode;
while (currentNode.Flags.HasFlag(NodeFlags.ImpliedEnd) && currentNode.LocalName != tagName) {
CloseCurrentNode();
currentNode = CurrentNode;
}
}
private void GenerateImpliedEndTags()
{
while (CurrentNode.Flags.HasFlag(NodeFlags.ImpliedEnd)) {
CloseCurrentNode();
}
}
private void ReconstructFormatting()
{
if (_formattingElements.Count != 0) {
int i = _formattingElements.Count - 1;
Element element = _formattingElements[i];
if (element != null && !_openElements.Contains(element)) {
while (i > 0) {
element = _formattingElements[--i];
if (element == null || _openElements.Contains(element)) {
i++;
break;
}
}
for (; i < _formattingElements.Count; i++) {
Element element2 = CopyElement(_formattingElements[i]);
AddElement(element2);
_formattingElements[i] = element2;
}
}
}
}
private void RaiseErrorOccurred(HtmlParseError code)
{
_tokenizer.RaiseErrorOccurred(code);
}
}
}
