public void NormalizeMergeTextNodes()
{
var div = new HTMLDivElement();
var a = new HTMLAnchorElement();
a.AppendChild(new TextNode());
a.AppendChild(new TextNode("Not empty."));
div.AppendChild(a);
div.AppendChild(new TextNode());
div.AppendChild(new HTMLDivElement());
div.AppendChild(new TextNode("Certainly not empty!"));
div.AppendChild(new TextNode("Certainly not empty!"));
div.AppendChild(new TextNode("Certainly not empty!"));
div.AppendChild(new TextNode("Certainly not empty!"));
div.AppendChild(new HTMLImageElement());
div.Normalize();
Assert.AreEqual(div.ChildNodes.Length, 4);
}
public void NormalizeRemovesEmptyTextNodesNested()
{
var div = new HTMLDivElement();
var a = new HTMLAnchorElement();
a.AppendChild(new TextNode());
a.AppendChild(new TextNode("Not empty."));
div.AppendChild(a);
div.AppendChild(new TextNode());
div.AppendChild(new HTMLDivElement());
div.AppendChild(new TextNode("Certainly not empty!"));
div.AppendChild(new HTMLImageElement());
div.Normalize();
Assert.AreEqual(a.ChildNodes.Length, 1);
}
/// <summary>
/// See 8.2.5.4.7 The "in body" insertion mode.
/// </summary>
/// <param name="token">The passed token.</param>
void InBody(HtmlToken token)
{
if (token.Type == HtmlTokenType.Character)
{
var chrs = (HtmlCharacterToken)token;
ReconstructFormatting();
InsertCharacters(chrs.Data);
if(chrs.HasContent)
frameset = false;
}
else if (token.Type == HtmlTokenType.Comment)
AddComment(CurrentNode, token);
else if (token.Type == HtmlTokenType.DOCTYPE)
RaiseErrorOccurred(ErrorCode.DoctypeTagInappropriate);
else if (token.Type == HtmlTokenType.StartTag)
{
var tag = (HtmlTagToken)token;
switch (tag.Name)
{
case HTMLHtmlElement.Tag:
{
RaiseErrorOccurred(ErrorCode.HtmlTagMisplaced);
AppendAttributes(tag, open[0]);
break;
}
case HTMLBaseElement.Tag:
case HTMLBaseFontElement.Tag:
case HTMLBgsoundElement.Tag:
case HTMLLinkElement.Tag:
case HTMLMenuItemElement.Tag:
case HTMLMetaElement.Tag:
case HTMLNoElement.NoFramesTag:
case HTMLScriptElement.Tag:
case HTMLStyleElement.Tag:
case HTMLTitleElement.Tag:
{
InHead(token);
break;
}
case HTMLBodyElement.Tag:
{
RaiseErrorOccurred(ErrorCode.BodyTagMisplaced);
if (open.Count > 1 && open[1] is HTMLBodyElement)
{
frameset = false;
AppendAttributes(tag, open[1]);
}
break;
}
case HTMLFrameSetElement.Tag:
{
RaiseErrorOccurred(ErrorCode.FramesetMisplaced);
if (open.Count != 1 && open[1] is HTMLBodyElement && frameset)
{
open[1].ParentNode.RemoveChild(open[1]);
while (open.Count > 1)
CloseCurrentNode();
var element = new HTMLFrameSetElement();
AddElementToCurrentNode(element, token);
insert = HtmlTreeMode.InFrameset;
}
break;
}
case HTMLSemanticElement.AddressTag:
case HTMLSemanticElement.ArticleTag:
case HTMLSemanticElement.AsideTag:
case HTMLQuoteElement.BlockTag:
case HTMLSemanticElement.CenterTag:
case HTMLDetailsElement.Tag:
case HTMLDialogElement.Tag:
case HTMLDirectoryElement.Tag:
case HTMLDivElement.Tag:
case HTMLDListElement.Tag:
case HTMLFieldSetElement.Tag:
case HTMLSemanticElement.FigcaptionTag:
case HTMLSemanticElement.FigureTag:
case HTMLSemanticElement.FooterTag:
case HTMLSemanticElement.HeaderTag:
case HTMLSemanticElement.HgroupTag:
case HTMLMenuElement.Tag:
case HTMLSemanticElement.NavTag:
case HTMLOListElement.Tag:
case HTMLParagraphElement.Tag:
case HTMLSemanticElement.SectionTag:
case HTMLSemanticElement.SummaryTag:
case HTMLUListElement.Tag:
{
if (IsInButtonScope(HTMLParagraphElement.Tag))
InBodyEndTagParagraph();
var element = HTMLElement.Factory(tag.Name);
AddElementToCurrentNode(element, token);
break;
}
case HTMLHeadingElement.ChapterTag:
case HTMLHeadingElement.SubSubSubSubSectionTag:
case HTMLHeadingElement.SubSubSubSectionTag:
case HTMLHeadingElement.SubSubSectionTag:
case HTMLHeadingElement.SubSectionTag:
case HTMLHeadingElement.SectionTag:
{
if (IsInButtonScope(HTMLParagraphElement.Tag))
InBodyEndTagParagraph();
if (CurrentNode is HTMLHeadingElement)
{
RaiseErrorOccurred(ErrorCode.HeadingNested);
CloseCurrentNode();
}
var element = new HTMLHeadingElement();
AddElementToCurrentNode(element, token);
break;
}
case HTMLPreElement.Tag:
case HTMLSemanticElement.ListingTag:
{
if (IsInButtonScope(HTMLParagraphElement.Tag))
InBodyEndTagParagraph();
var element = new HTMLPreElement();
AddElementToCurrentNode(element, token);
frameset = false;
PreventNewLine();
break;
}
case HTMLFormElement.Tag:
{
if (form == null)
{
if (IsInButtonScope(HTMLParagraphElement.Tag))
InBodyEndTagParagraph();
var element = new HTMLFormElement();
AddElementToCurrentNode(element, token);
form = element;
}
else
RaiseErrorOccurred(ErrorCode.FormAlreadyOpen);
break;
}
case HTMLLIElement.ItemTag:
{
InBodyStartTagListItem(tag);
break;
}
case HTMLLIElement.DefinitionTag:
case HTMLLIElement.DescriptionTag:
{
InBodyStartTagDefinitionItem(tag);
break;
}
case HTMLSemanticElement.PlaintextTag:
{
if (IsInButtonScope(HTMLParagraphElement.Tag))
InBodyEndTagParagraph();
var plaintext = new HTMLElement();
AddElementToCurrentNode(plaintext, token);
tokenizer.Switch(HtmlParseMode.Plaintext);
break;
}
case HTMLButtonElement.Tag:
{
if (IsInScope(tag.Name))
{
RaiseErrorOccurred(ErrorCode.ButtonInScope);
InBodyEndTagBlock(tag.Name);
InBody(token);
}
else
{
ReconstructFormatting();
var element = new HTMLButtonElement();
AddElementToCurrentNode(element, token);
frameset = false;
}
break;
}
case HTMLAnchorElement.Tag:
{
for (var i = formatting.Count - 1; i >= 0; i--)
{
if (formatting[i] is ScopeMarkerNode)
break;
else if (formatting[i].NodeName == HTMLAnchorElement.Tag)
{
var format = formatting[i];
RaiseErrorOccurred(ErrorCode.AnchorNested);
HeisenbergAlgorithm(HtmlToken.CloseTag(HTMLAnchorElement.Tag));
if(open.Contains(format)) open.Remove(format);
if(formatting.Contains(format)) formatting.RemoveAt(i);
break;
}
}
ReconstructFormatting();
var element = new HTMLAnchorElement();
AddElementToCurrentNode(element, token);
AddFormattingElement(element);
break;
}
case HTMLFormattingElement.BTag:
case HTMLFormattingElement.BigTag:
case HTMLFormattingElement.CodeTag:
case HTMLFormattingElement.EmTag:
case HTMLFontElement.Tag:
case HTMLFormattingElement.ITag:
case HTMLFormattingElement.STag:
case HTMLFormattingElement.SmallTag:
case HTMLFormattingElement.StrikeTag:
case HTMLFormattingElement.StrongTag:
case HTMLFormattingElement.TtTag:
case HTMLFormattingElement.UTag:
{
ReconstructFormatting();
var element = HTMLElement.Factory(tag.Name);
AddElementToCurrentNode(element, token);
AddFormattingElement(element);
break;
}
case HTMLFormattingElement.NobrTag:
{
ReconstructFormatting();
if (IsInScope(HTMLFormattingElement.NobrTag))
{
RaiseErrorOccurred(ErrorCode.NobrInScope);
HeisenbergAlgorithm(tag);
ReconstructFormatting();
}
var element = new HTMLElement();
AddElementToCurrentNode(element, token);
AddFormattingElement(element);
break;
}
case HTMLAppletElement.Tag:
case HTMLMarqueeElement.Tag:
case HTMLObjectElement.Tag:
{
ReconstructFormatting();
var element = HTMLElement.Factory(tag.Name);
AddElementToCurrentNode(element, token);
InsertScopeMarker();
frameset = false;
break;
}
case HTMLTableElement.Tag:
{
if (doc.QuirksMode == QuirksMode.Off && IsInButtonScope(HTMLParagraphElement.Tag))
InBodyEndTagParagraph();
var element = new HTMLTableElement();
AddElementToCurrentNode(element, token);
frameset = false;
insert = HtmlTreeMode.InTable;
break;
}
case HTMLAreaElement.Tag:
case HTMLBRElement.Tag:
case HTMLEmbedElement.Tag:
case HTMLImageElement.Tag:
case HTMLKeygenElement.Tag:
case HTMLWbrElement.Tag:
{
InBodyStartTagBreakrow(tag);
break;
}
case HTMLInputElement.Tag:
{
ReconstructFormatting();
var element = new HTMLInputElement();
AddElementToCurrentNode(element, token, true);
CloseCurrentNode();
if (!tag.GetAttribute("type").Equals("hidden", StringComparison.OrdinalIgnoreCase))
frameset = false;
break;
}
case HTMLParamElement.Tag:
case HTMLSourceElement.Tag:
case HTMLTrackElement.Tag:
{
var element = HTMLElement.Factory(tag.Name);
AddElementToCurrentNode(element, token, true);
CloseCurrentNode();
break;
}
case HTMLHRElement.Tag:
{
if (IsInButtonScope(HTMLParagraphElement.Tag))
InBodyEndTagParagraph();
var element = new HTMLHRElement();
AddElementToCurrentNode(element, token, true);
CloseCurrentNode();
frameset = false;
break;
}
case HTMLImageElement.FalseTag:
{
RaiseErrorOccurred(ErrorCode.ImageTagNamedWrong);
tag.Name = HTMLImageElement.Tag;
goto case HTMLImageElement.Tag;
}
case HTMLIsIndexElement.Tag:
{
RaiseErrorOccurred(ErrorCode.TagInappropriate);
if (form == null)
{
InBody(HtmlToken.OpenTag(HTMLFormElement.Tag));
if (tag.GetAttribute("action") != String.Empty)
form.SetAttribute("action", tag.GetAttribute("action"));
InBody(HtmlToken.OpenTag(HTMLHRElement.Tag));
InBody(HtmlToken.OpenTag(HTMLLabelElement.Tag));
if (tag.GetAttribute("prompt") != String.Empty)
InsertCharacters(tag.GetAttribute("prompt"));
else
InsertCharacters("This is a searchable index. Enter search keywords:");
var input = HtmlToken.OpenTag(HTMLInputElement.Tag);
input.AddAttribute("name", HTMLIsIndexElement.Tag);
for (int i = 0; i < tag.Attributes.Count; i++)
{
if (tag.Attributes[i].Key == "name" || tag.Attributes[i].Key == "action" || tag.Attributes[i].Key == "prompt")
continue;
input.AddAttribute(tag.Attributes[i].Key, tag.Attributes[i].Value);
}
InBody(input);
InBody(HtmlToken.CloseTag(HTMLLabelElement.Tag));
InBody(HtmlToken.OpenTag(HTMLHRElement.Tag));
InBody(HtmlToken.CloseTag(HTMLFormElement.Tag));
}
break;
}
case HTMLTextAreaElement.Tag:
{
var element = new HTMLTextAreaElement();
AddElementToCurrentNode(element, token);
tokenizer.Switch(HtmlParseMode.RCData);
originalInsert = insert;
frameset = false;
insert = HtmlTreeMode.Text;
PreventNewLine();
break;
}
case HTMLSemanticElement.XmpTag:
{
if (IsInButtonScope(HTMLParagraphElement.Tag))
InBodyEndTagParagraph();
ReconstructFormatting();
frameset = false;
RawtextAlgorithm(tag);
break;
}
case HTMLIFrameElement.Tag:
{
frameset = false;
RawtextAlgorithm(tag);
break;
}
case HTMLSelectElement.Tag:
{
ReconstructFormatting();
var element = new HTMLSelectElement();
AddElementToCurrentNode(element, token);
frameset = false;
switch (insert)
{
case HtmlTreeMode.InTable:
case HtmlTreeMode.InCaption:
case HtmlTreeMode.InRow:
case HtmlTreeMode.InCell:
insert = HtmlTreeMode.InSelectInTable;
break;
default:
insert = HtmlTreeMode.InSelect;
break;
}
break;
}
case HTMLOptGroupElement.Tag:
case HTMLOptionElement.Tag:
{
if (CurrentNode.NodeName == HTMLOptionElement.Tag)
InBodyEndTagAnythingElse(HtmlToken.CloseTag(HTMLOptionElement.Tag));
ReconstructFormatting();
var element = HTMLElement.Factory(tag.Name);
AddElementToCurrentNode(element, token);
break;
}
case "rp":
case "rt":
{
if (IsInScope("ruby"))
{
GenerateImpliedEndTags();
if (CurrentNode.NodeName != "ruby")
RaiseErrorOccurred(ErrorCode.TagDoesNotMatchCurrentNode);
}
var element = HTMLElement.Factory(tag.Name);
AddElementToCurrentNode(element, token);
break;
}
case HTMLNoElement.NoEmbedTag:
{
RawtextAlgorithm(tag);
break;
}
case HTMLNoElement.NoScriptTag:
{
if (!doc.IsScripting)
goto default;
RawtextAlgorithm(tag);
break;
}
case MathMLElement.RootTag:
{
var element = new MathMLElement();
element.NodeName = tag.Name;
ReconstructFormatting();
for (int i = 0; i < tag.Attributes.Count; i++)
{
var name = tag.Attributes[i].Key;
var value = tag.Attributes[i].Value;
element.SetAttribute(ForeignHelpers.AdjustAttributeName(MathMLHelpers.AdjustAttributeName(name)), value);
}
CurrentNode.AppendChild(element);
if (!tag.IsSelfClosing)
open.Add(element);
break;
}
case SVGElement.RootTag:
{
var element = new SVGElement();
element.NodeName = tag.Name;
ReconstructFormatting();
for (int i = 0; i < tag.Attributes.Count; i++)
{
var name = tag.Attributes[i].Key;
var value = tag.Attributes[i].Value;
element.SetAttribute(ForeignHelpers.AdjustAttributeName(MathMLHelpers.AdjustAttributeName(name)), value);
}
CurrentNode.AppendChild(element);
if (!tag.IsSelfClosing)
{
open.Add(element);
tokenizer.AcceptsCharacterData = true;
}
break;
}
case HTMLTableCaptionElement.Tag:
case HTMLTableColElement.ColTag:
case HTMLTableColElement.ColgroupTag:
case HTMLFrameElement.Tag:
case HTMLHeadElement.Tag:
case HTMLTableSectionElement.BodyTag:
case HTMLTableCellElement.NormalTag:
case HTMLTableSectionElement.FootTag:
case HTMLTableCellElement.HeadTag:
case HTMLTableSectionElement.HeadTag:
case HTMLTableRowElement.Tag:
{
RaiseErrorOccurred(ErrorCode.TagCannotStartHere);
break;
}
default:
{
ReconstructFormatting();
var element = new HTMLUnknownElement();
AddElementToCurrentNode(element, token);
break;
}
}
}
else if (token.Type == HtmlTokenType.EndTag)
{
var tag = (HtmlTagToken)token;
switch (tag.Name)
{
case HTMLBodyElement.Tag:
{
InBodyEndTagBody();
break;
}
case HTMLHtmlElement.Tag:
{
if (InBodyEndTagBody())
AfterBody(token);
break;
}
case HTMLSemanticElement.AddressTag:
case HTMLSemanticElement.ArticleTag:
case HTMLSemanticElement.AsideTag:
case HTMLQuoteElement.BlockTag:
case HTMLButtonElement.Tag:
case HTMLSemanticElement.CenterTag:
case HTMLDetailsElement.Tag:
case HTMLDialogElement.Tag:
case HTMLDirectoryElement.Tag:
case HTMLDivElement.Tag:
case HTMLDListElement.Tag:
case HTMLFieldSetElement.Tag:
case HTMLSemanticElement.FigcaptionTag:
case HTMLSemanticElement.FigureTag:
case HTMLSemanticElement.FooterTag:
case HTMLSemanticElement.HeaderTag:
case HTMLSemanticElement.HgroupTag:
case HTMLSemanticElement.ListingTag:
case HTMLSemanticElement.MainTag:
case HTMLMenuElement.Tag:
case HTMLSemanticElement.NavTag:
case HTMLOListElement.Tag:
case HTMLPreElement.Tag:
case HTMLSemanticElement.SectionTag:
case HTMLSemanticElement.SummaryTag:
case HTMLUListElement.Tag:
{
InBodyEndTagBlock(tag.Name);
break;
}
case HTMLFormElement.Tag:
{
var node = form;
form = null;
if (node != null && IsInScope(node.NodeName))
{
GenerateImpliedEndTags();
if (CurrentNode != node)
RaiseErrorOccurred(ErrorCode.FormClosedWrong);
open.Remove(node);
}
else
RaiseErrorOccurred(ErrorCode.FormNotInScope);
break;
}
case HTMLParagraphElement.Tag:
{
InBodyEndTagParagraph();
break;
}
case HTMLLIElement.ItemTag:
{
if (IsInListItemScope(tag.Name))
{
GenerateImpliedEndTagsExceptFor(tag.Name);
if (CurrentNode.NodeName != tag.Name)
RaiseErrorOccurred(ErrorCode.TagDoesNotMatchCurrentNode);
ClearStackBackTo(tag.Name);
CloseCurrentNode();
}
else
RaiseErrorOccurred(ErrorCode.ListItemNotInScope);
break;
}
case HTMLLIElement.DefinitionTag:
case HTMLLIElement.DescriptionTag:
{
if (IsInScope(tag.Name))
{
GenerateImpliedEndTagsExceptFor(tag.Name);
if (CurrentNode.NodeName != tag.Name)
RaiseErrorOccurred(ErrorCode.TagDoesNotMatchCurrentNode);
ClearStackBackTo(tag.Name);
CloseCurrentNode();
}
else
RaiseErrorOccurred(ErrorCode.ListItemNotInScope);
break;
}
case HTMLHeadingElement.ChapterTag:
case HTMLHeadingElement.SubSubSubSubSectionTag:
case HTMLHeadingElement.SubSubSubSectionTag:
case HTMLHeadingElement.SubSubSectionTag:
case HTMLHeadingElement.SubSectionTag:
case HTMLHeadingElement.SectionTag:
{
if (IsHeadingInScope())
{
GenerateImpliedEndTags();
if (CurrentNode.NodeName != tag.Name)
RaiseErrorOccurred(ErrorCode.TagDoesNotMatchCurrentNode);
ClearStackBackToHeading();
CloseCurrentNode();
}
else
RaiseErrorOccurred(ErrorCode.HeadingNotInScope);
break;
}
case HTMLAnchorElement.Tag:
case HTMLFormattingElement.BTag:
case HTMLFormattingElement.BigTag:
case HTMLFormattingElement.CodeTag:
case HTMLFormattingElement.EmTag:
case HTMLFontElement.Tag:
case HTMLFormattingElement.ITag:
case HTMLFormattingElement.NobrTag:
case HTMLFormattingElement.STag:
case HTMLFormattingElement.SmallTag:
case HTMLFormattingElement.StrikeTag:
case HTMLFormattingElement.StrongTag:
case HTMLFormattingElement.TtTag:
case HTMLFormattingElement.UTag:
{
HeisenbergAlgorithm(tag);
break;
}
case HTMLAppletElement.Tag:
case HTMLMarqueeElement.Tag:
case HTMLObjectElement.Tag:
{
if (IsInScope(tag.Name))
{
GenerateImpliedEndTags();
if (CurrentNode.NodeName != tag.Name)
RaiseErrorOccurred(ErrorCode.TagDoesNotMatchCurrentNode);
ClearStackBackTo(tag.Name);
CloseCurrentNode();
ClearFormattingElements();
}
else
RaiseErrorOccurred(ErrorCode.ObjectNotInScope);
break;
}
case HTMLBRElement.Tag:
{
RaiseErrorOccurred(ErrorCode.TagCannotEndHere);
InBodyStartTagBreakrow(HtmlToken.OpenTag(HTMLBRElement.Tag));
break;
}
default:
{
InBodyEndTagAnythingElse(tag);
break;
}
}
}
else if (token.Type == HtmlTokenType.EOF)
{
for (var i = 0; i < open.Count; i++)
{
switch (open[i].NodeName)
{
case HTMLLIElement.DescriptionTag:
case HTMLLIElement.DefinitionTag:
case HTMLLIElement.ItemTag:
case HTMLParagraphElement.Tag:
case HTMLTableSectionElement.BodyTag:
case HTMLTableCellElement.HeadTag:
case HTMLTableSectionElement.FootTag:
case HTMLTableCellElement.NormalTag:
case HTMLTableSectionElement.HeadTag:
case HTMLTableRowElement.Tag:
case HTMLBodyElement.Tag:
case HTMLHtmlElement.Tag:
break;
default:
RaiseErrorOccurred(ErrorCode.BodyClosedWrong);
i = open.Count;
break;
}
}
End();
}
}
