How to use TFoot method of html Package

Best K6 code snippet using html.TFoot

parse.go

Source:parse.go

1// Copyright 2010 The Go Authors. All rights reserved.2// Use of this source code is governed by a BSD-style3// license that can be found in the LICENSE file.4// golang.org/x/net/html/parse.go5package html6import (7	"errors"8	"fmt"9	"io"10	"strings"11	a "golang.org/x/net/html/atom"12)13// A parser implements the HTML5 parsing algorithm:14// https://html.spec.whatwg.org/multipage/syntax.html#tree-construction15type parser struct {16	// tokenizer provides the tokens for the parser.17	tokenizer *Tokenizer18	// tok is the most recently read token.19	tok Token20	// Self-closing tags like <hr/> are treated as start tags, except that21	// hasSelfClosingToken is set while they are being processed.22	hasSelfClosingToken bool23	// doc is the document root element.24	doc *Node25	// The stack of open elements (section 12.2.3.2) and active formatting26	// elements (section 12.2.3.3).27	oe, afe nodeStack28	// Element pointers (section 12.2.3.4).29	head, form *Node30	// Other parsing state flags (section 12.2.3.5).31	scripting, framesetOK bool32	// im is the current insertion mode.33	im insertionMode34	// originalIM is the insertion mode to go back to after completing a text35	// or inTableText insertion mode.36	originalIM insertionMode37	// fosterParenting is whether new elements should be inserted according to38	// the foster parenting rules (section 12.2.5.3).39	fosterParenting bool40	// quirks is whether the parser is operating in "quirks mode."41	quirks bool42	// fragment is whether the parser is parsing an HTML fragment.43	fragment bool44	// context is the context element when parsing an HTML fragment45	// (section 12.4).46	context *Node47}48func (p *parser) top() *Node {49	if n := p.oe.top(); n != nil {50		return n51	}52	return p.doc53}54// Stop tags for use in popUntil. These come from section 12.2.3.2.55var (56	defaultScopeStopTags = map[string][]a.Atom{57		"":     {a.Applet, a.Caption, a.Html, a.Table, a.Td, a.Th, a.Marquee, a.Object, a.Template},58		"math": {a.AnnotationXml, a.Mi, a.Mn, a.Mo, a.Ms, a.Mtext},59		"svg":  {a.Desc, a.ForeignObject, a.Title},60	}61)62type scope int63const (64	defaultScope scope = iota65	listItemScope66	buttonScope67	tableScope68	tableRowScope69	tableBodyScope70	selectScope71)72// popUntil pops the stack of open elements at the highest element whose tag73// is in matchTags, provided there is no higher element in the scope's stop74// tags (as defined in section 12.2.3.2). It returns whether or not there was75// such an element. If there was not, popUntil leaves the stack unchanged.76//77// For example, the set of stop tags for table scope is: "html", "table". If78// the stack was:79// ["html", "body", "font", "table", "b", "i", "u"]80// then popUntil(tableScope, "font") would return false, but81// popUntil(tableScope, "i") would return true and the stack would become:82// ["html", "body", "font", "table", "b"]83//84// If an element's tag is in both the stop tags and matchTags, then the stack85// will be popped and the function returns true (provided, of course, there was86// no higher element in the stack that was also in the stop tags). For example,87// popUntil(tableScope, "table") returns true and leaves:88// ["html", "body", "font"]89func (p *parser) popUntil(s scope, matchTags ...a.Atom) bool {90	if i := p.indexOfElementInScope(s, matchTags...); i != -1 {91		p.oe = p.oe[:i]92		return true93	}94	return false95}96// indexOfElementInScope returns the index in p.oe of the highest element whose97// tag is in matchTags that is in scope. If no matching element is in scope, it98// returns -1.99func (p *parser) indexOfElementInScope(s scope, matchTags ...a.Atom) int {100	for i := len(p.oe) - 1; i >= 0; i-- {101		tagAtom := p.oe[i].DataAtom102		if p.oe[i].Namespace == "" {103			for _, t := range matchTags {104				if t == tagAtom {105					return i106				}107			}108			switch s {109			case defaultScope:110				// No-op.111			case listItemScope:112				if tagAtom == a.Ol || tagAtom == a.Ul {113					return -1114				}115			case buttonScope:116				if tagAtom == a.Button {117					return -1118				}119			case tableScope:120				if tagAtom == a.Html || tagAtom == a.Table {121					return -1122				}123			case selectScope:124				if tagAtom != a.Optgroup && tagAtom != a.Option {125					return -1126				}127			default:128				panic("unreachable")129			}130		}131		switch s {132		case defaultScope, listItemScope, buttonScope:133			for _, t := range defaultScopeStopTags[p.oe[i].Namespace] {134				if t == tagAtom {135					return -1136				}137			}138		}139	}140	return -1141}142// elementInScope is like popUntil, except that it doesn't modify the stack of143// open elements.144func (p *parser) elementInScope(s scope, matchTags ...a.Atom) bool {145	return p.indexOfElementInScope(s, matchTags...) != -1146}147// clearStackToContext pops elements off the stack of open elements until a148// scope-defined element is found.149func (p *parser) clearStackToContext(s scope) {150	for i := len(p.oe) - 1; i >= 0; i-- {151		tagAtom := p.oe[i].DataAtom152		switch s {153		case tableScope:154			if tagAtom == a.Html || tagAtom == a.Table {155				p.oe = p.oe[:i+1]156				return157			}158		case tableRowScope:159			if tagAtom == a.Html || tagAtom == a.Tr {160				p.oe = p.oe[:i+1]161				return162			}163		case tableBodyScope:164			if tagAtom == a.Html || tagAtom == a.Tbody || tagAtom == a.Tfoot || tagAtom == a.Thead {165				p.oe = p.oe[:i+1]166				return167			}168		default:169			panic("unreachable")170		}171	}172}173// generateImpliedEndTags pops nodes off the stack of open elements as long as174// the top node has a tag name of dd, dt, li, option, optgroup, p, rp, or rt.175// If exceptions are specified, nodes with that name will not be popped off.176func (p *parser) generateImpliedEndTags(exceptions ...string) {177	var i int178loop:179	for i = len(p.oe) - 1; i >= 0; i-- {180		n := p.oe[i]181		if n.Type == ElementNode {182			switch n.DataAtom {183			case a.Dd, a.Dt, a.Li, a.Option, a.Optgroup, a.P, a.Rp, a.Rt:184				for _, except := range exceptions {185					if n.Data == except {186						break loop187					}188				}189				continue190			}191		}192		break193	}194	p.oe = p.oe[:i+1]195}196// addChild adds a child node n to the top element, and pushes n onto the stack197// of open elements if it is an element node.198func (p *parser) addChild(n *Node) {199	if p.shouldFosterParent() {200		p.fosterParent(n)201	} else {202		p.top().AppendChild(n)203	}204	if n.Type == ElementNode {205		p.oe = append(p.oe, n)206	}207}208// shouldFosterParent returns whether the next node to be added should be209// foster parented.210func (p *parser) shouldFosterParent() bool {211	if p.fosterParenting {212		switch p.top().DataAtom {213		case a.Table, a.Tbody, a.Tfoot, a.Thead, a.Tr:214			return true215		}216	}217	return false218}219// fosterParent adds a child node according to the foster parenting rules.220// Section 12.2.5.3, "foster parenting".221func (p *parser) fosterParent(n *Node) {222	var table, parent, prev *Node223	var i int224	for i = len(p.oe) - 1; i >= 0; i-- {225		if p.oe[i].DataAtom == a.Table {226			table = p.oe[i]227			break228		}229	}230	if table == nil {231		// The foster parent is the html element.232		parent = p.oe[0]233	} else {234		parent = table.Parent235	}236	if parent == nil {237		parent = p.oe[i-1]238	}239	if table != nil {240		prev = table.PrevSibling241	} else {242		prev = parent.LastChild243	}244	if prev != nil && prev.Type == TextNode && n.Type == TextNode {245		prev.Data += n.Data246		return247	}248	parent.InsertBefore(n, table)249}250// addText adds text to the preceding node if it is a text node, or else it251// calls addChild with a new text node.252func (p *parser) addText(text string) {253	if text == "" {254		return255	}256	if p.shouldFosterParent() {257		p.fosterParent(&Node{258			Type: TextNode,259			Data: text,260		})261		return262	}263	t := p.top()264	if n := t.LastChild; n != nil && n.Type == TextNode {265		n.Data += text266		return267	}268	p.addChild(&Node{269		Type: TextNode,270		Data: text,271	})272}273// addElement adds a child element based on the current token.274func (p *parser) addElement() {275	p.addChild(&Node{276		Type:     ElementNode,277		DataAtom: p.tok.DataAtom,278		Data:     p.tok.Data,279		Attr:     p.tok.Attr,280	})281}282// Section 12.2.3.3.283func (p *parser) addFormattingElement() {284	tagAtom, attr := p.tok.DataAtom, p.tok.Attr285	p.addElement()286	// Implement the Noah's Ark clause, but with three per family instead of two.287	identicalElements := 0288findIdenticalElements:289	for i := len(p.afe) - 1; i >= 0; i-- {290		n := p.afe[i]291		if n.Type == scopeMarkerNode {292			break293		}294		if n.Type != ElementNode {295			continue296		}297		if n.Namespace != "" {298			continue299		}300		if n.DataAtom != tagAtom {301			continue302		}303		if len(n.Attr) != len(attr) {304			continue305		}306	compareAttributes:307		for _, t0 := range n.Attr {308			for _, t1 := range attr {309				if t0.Key == t1.Key && t0.Namespace == t1.Namespace && t0.Val == t1.Val {310					// Found a match for this attribute, continue with the next attribute.311					continue compareAttributes312				}313			}314			// If we get here, there is no attribute that matches a.315			// Therefore the element is not identical to the new one.316			continue findIdenticalElements317		}318		identicalElements++319		if identicalElements >= 3 {320			p.afe.remove(n)321		}322	}323	p.afe = append(p.afe, p.top())324}325// Section 12.2.3.3.326func (p *parser) clearActiveFormattingElements() {327	for {328		n := p.afe.pop()329		if len(p.afe) == 0 || n.Type == scopeMarkerNode {330			return331		}332	}333}334// Section 12.2.3.3.335func (p *parser) reconstructActiveFormattingElements() {336	n := p.afe.top()337	if n == nil {338		return339	}340	if n.Type == scopeMarkerNode || p.oe.index(n) != -1 {341		return342	}343	i := len(p.afe) - 1344	for n.Type != scopeMarkerNode && p.oe.index(n) == -1 {345		if i == 0 {346			i = -1347			break348		}349		i--350		n = p.afe[i]351	}352	for {353		i++354		clone := p.afe[i].clone()355		p.addChild(clone)356		p.afe[i] = clone357		if i == len(p.afe)-1 {358			break359		}360	}361}362// Section 12.2.4.363func (p *parser) acknowledgeSelfClosingTag() {364	p.hasSelfClosingToken = false365}366// An insertion mode (section 12.2.3.1) is the state transition function from367// a particular state in the HTML5 parser's state machine. It updates the368// parser's fields depending on parser.tok (where ErrorToken means EOF).369// It returns whether the token was consumed.370type insertionMode func(*parser) bool371// setOriginalIM sets the insertion mode to return to after completing a text or372// inTableText insertion mode.373// Section 12.2.3.1, "using the rules for".374func (p *parser) setOriginalIM() {375	if p.originalIM != nil {376		panic("html: bad parser state: originalIM was set twice")377	}378	p.originalIM = p.im379}380// Section 12.2.3.1, "reset the insertion mode".381func (p *parser) resetInsertionMode() {382	for i := len(p.oe) - 1; i >= 0; i-- {383		n := p.oe[i]384		if i == 0 && p.context != nil {385			n = p.context386		}387		switch n.DataAtom {388		case a.Select:389			p.im = inSelectIM390		case a.Td, a.Th:391			p.im = inCellIM392		case a.Tr:393			p.im = inRowIM394		case a.Tbody, a.Thead, a.Tfoot:395			p.im = inTableBodyIM396		case a.Caption:397			p.im = inCaptionIM398		case a.Colgroup:399			p.im = inColumnGroupIM400		case a.Table:401			p.im = inTableIM402		case a.Head:403			p.im = inBodyIM404		case a.Body:405			p.im = inBodyIM406		case a.Frameset:407			p.im = inFramesetIM408		case a.Html:409			p.im = beforeHeadIM410		default:411			continue412		}413		return414	}415	p.im = inBodyIM416}417const whitespace = " \t\r\n\f"418// Section 12.2.5.4.1.419func initialIM(p *parser) bool {420	switch p.tok.Type {421	case TextToken:422		p.tok.Data = strings.TrimLeft(p.tok.Data, whitespace)423		if len(p.tok.Data) == 0 {424			// It was all whitespace, so ignore it.425			return true426		}427	case CommentToken:428		p.doc.AppendChild(&Node{429			Type: CommentNode,430			Data: p.tok.Data,431		})432		return true433	case DoctypeToken:434		n, quirks := parseDoctype(p.tok.Data)435		p.doc.AppendChild(n)436		p.quirks = quirks437		p.im = beforeHTMLIM438		return true439	}440	p.quirks = true441	p.im = beforeHTMLIM442	return false443}444// Section 12.2.5.4.2.445func beforeHTMLIM(p *parser) bool {446	switch p.tok.Type {447	case DoctypeToken:448		// Ignore the token.449		return true450	case TextToken:451		p.tok.Data = strings.TrimLeft(p.tok.Data, whitespace)452		if len(p.tok.Data) == 0 {453			// It was all whitespace, so ignore it.454			return true455		}456	case StartTagToken:457		if p.tok.DataAtom == a.Html {458			p.addElement()459			p.im = beforeHeadIM460			return true461		}462	case EndTagToken:463		switch p.tok.DataAtom {464		case a.Head, a.Body, a.Html, a.Br:465			p.parseImpliedToken(StartTagToken, a.Html, a.Html.String())466			return false467		default:468			// Ignore the token.469			return true470		}471	case CommentToken:472		p.doc.AppendChild(&Node{473			Type: CommentNode,474			Data: p.tok.Data,475		})476		return true477	}478	p.parseImpliedToken(StartTagToken, a.Html, a.Html.String())479	return false480}481// Section 12.2.5.4.3.482func beforeHeadIM(p *parser) bool {483	switch p.tok.Type {484	case TextToken:485		p.tok.Data = strings.TrimLeft(p.tok.Data, whitespace)486		if len(p.tok.Data) == 0 {487			// It was all whitespace, so ignore it.488			return true489		}490	case StartTagToken:491		switch p.tok.DataAtom {492		case a.Head:493			p.addElement()494			p.head = p.top()495			p.im = inHeadIM496			return true497		case a.Html:498			return inBodyIM(p)499		}500	case EndTagToken:501		switch p.tok.DataAtom {502		case a.Head, a.Body, a.Html, a.Br:503			p.parseImpliedToken(StartTagToken, a.Head, a.Head.String())504			return false505		default:506			// Ignore the token.507			return true508		}509	case CommentToken:510		p.addChild(&Node{511			Type: CommentNode,512			Data: p.tok.Data,513		})514		return true515	case DoctypeToken:516		// Ignore the token.517		return true518	}519	p.parseImpliedToken(StartTagToken, a.Head, a.Head.String())520	return false521}522// Section 12.2.5.4.4.523func inHeadIM(p *parser) bool {524	switch p.tok.Type {525	case TextToken:526		s := strings.TrimLeft(p.tok.Data, whitespace)527		if len(s) < len(p.tok.Data) {528			// Add the initial whitespace to the current node.529			p.addText(p.tok.Data[:len(p.tok.Data)-len(s)])530			if s == "" {531				return true532			}533			p.tok.Data = s534		}535	case StartTagToken:536		switch p.tok.DataAtom {537		case a.Html:538			return inBodyIM(p)539		case a.Base, a.Basefont, a.Bgsound, a.Command, a.Link, a.Meta:540			p.addElement()541			p.oe.pop()542			p.acknowledgeSelfClosingTag()543			return true544		case a.Script, a.Title, a.Noscript, a.Noframes, a.Style:545			p.addElement()546			p.setOriginalIM()547			p.im = textIM548			return true549		case a.Head:550			// Ignore the token.551			return true552		}553	case EndTagToken:554		switch p.tok.DataAtom {555		case a.Head:556			n := p.oe.pop()557			if n.DataAtom != a.Head {558				panic("html: bad parser state: <head> element not found, in the in-head insertion mode")559			}560			p.im = afterHeadIM561			return true562		case a.Body, a.Html, a.Br:563			p.parseImpliedToken(EndTagToken, a.Head, a.Head.String())564			return false565		default:566			// Ignore the token.567			return true568		}569	case CommentToken:570		p.addChild(&Node{571			Type: CommentNode,572			Data: p.tok.Data,573		})574		return true575	case DoctypeToken:576		// Ignore the token.577		return true578	}579	p.parseImpliedToken(EndTagToken, a.Head, a.Head.String())580	return false581}582// Section 12.2.5.4.6.583func afterHeadIM(p *parser) bool {584	switch p.tok.Type {585	case TextToken:586		s := strings.TrimLeft(p.tok.Data, whitespace)587		if len(s) < len(p.tok.Data) {588			// Add the initial whitespace to the current node.589			p.addText(p.tok.Data[:len(p.tok.Data)-len(s)])590			if s == "" {591				return true592			}593			p.tok.Data = s594		}595	case StartTagToken:596		switch p.tok.DataAtom {597		case a.Html:598			return inBodyIM(p)599		case a.Body:600			p.addElement()601			p.framesetOK = false602			p.im = inBodyIM603			return true604		case a.Frameset:605			p.addElement()606			p.im = inFramesetIM607			return true608		case a.Base, a.Basefont, a.Bgsound, a.Link, a.Meta, a.Noframes, a.Script, a.Style, a.Title:609			p.oe = append(p.oe, p.head)610			defer p.oe.remove(p.head)611			return inHeadIM(p)612		case a.Head:613			// Ignore the token.614			return true615		}616	case EndTagToken:617		switch p.tok.DataAtom {618		case a.Body, a.Html, a.Br:619			// Drop down to creating an implied <body> tag.620		default:621			// Ignore the token.622			return true623		}624	case CommentToken:625		p.addChild(&Node{626			Type: CommentNode,627			Data: p.tok.Data,628		})629		return true630	case DoctypeToken:631		// Ignore the token.632		return true633	}634	p.parseImpliedToken(StartTagToken, a.Body, a.Body.String())635	p.framesetOK = true636	return false637}638// copyAttributes copies attributes of src not found on dst to dst.639func copyAttributes(dst *Node, src Token) {640	if len(src.Attr) == 0 {641		return642	}643	attr := map[string]string{}644	for _, t := range dst.Attr {645		attr[t.Key] = t.Val646	}647	for _, t := range src.Attr {648		if _, ok := attr[t.Key]; !ok {649			dst.Attr = append(dst.Attr, t)650			attr[t.Key] = t.Val651		}652	}653}654// Section 12.2.5.4.7.655func inBodyIM(p *parser) bool {656	switch p.tok.Type {657	case TextToken:658		d := p.tok.Data659		switch n := p.oe.top(); n.DataAtom {660		case a.Pre, a.Listing:661			if n.FirstChild == nil {662				// Ignore a newline at the start of a <pre> block.663				if d != "" && d[0] == '\r' {664					d = d[1:]665				}666				if d != "" && d[0] == '\n' {667					d = d[1:]668				}669			}670		}671		d = strings.Replace(d, "\x00", "", -1)672		if d == "" {673			return true674		}675		p.reconstructActiveFormattingElements()676		p.addText(d)677		if p.framesetOK && strings.TrimLeft(d, whitespace) != "" {678			// There were non-whitespace characters inserted.679			p.framesetOK = false680		}681	case StartTagToken:682		switch p.tok.DataAtom {683		case a.Html:684			copyAttributes(p.oe[0], p.tok)685		case a.Base, a.Basefont, a.Bgsound, a.Command, a.Link, a.Meta, a.Noframes, a.Script, a.Style, a.Title:686			return inHeadIM(p)687		case a.Body:688			if len(p.oe) >= 2 {689				body := p.oe[1]690				if body.Type == ElementNode && body.DataAtom == a.Body {691					p.framesetOK = false692					copyAttributes(body, p.tok)693				}694			}695		case a.Frameset:696			if !p.framesetOK || len(p.oe) < 2 || p.oe[1].DataAtom != a.Body {697				// Ignore the token.698				return true699			}700			body := p.oe[1]701			if body.Parent != nil {702				body.Parent.RemoveChild(body)703			}704			p.oe = p.oe[:1]705			p.addElement()706			p.im = inFramesetIM707			return true708		case a.Address, a.Article, a.Aside, a.Blockquote, a.Center, a.Details, a.Dir, a.Div, a.Dl, a.Fieldset, a.Figcaption, a.Figure, a.Footer, a.Header, a.Hgroup, a.Menu, a.Nav, a.Ol, a.P, a.Section, a.Summary, a.Ul:709			p.popUntil(buttonScope, a.P)710			p.addElement()711		case a.H1, a.H2, a.H3, a.H4, a.H5, a.H6:712			p.popUntil(buttonScope, a.P)713			switch n := p.top(); n.DataAtom {714			case a.H1, a.H2, a.H3, a.H4, a.H5, a.H6:715				p.oe.pop()716			}717			p.addElement()718		case a.Pre, a.Listing:719			p.popUntil(buttonScope, a.P)720			p.addElement()721			// The newline, if any, will be dealt with by the TextToken case.722			p.framesetOK = false723		case a.Form:724			if p.form == nil {725				p.popUntil(buttonScope, a.P)726				p.addElement()727				p.form = p.top()728			}729		case a.Li:730			p.framesetOK = false731			for i := len(p.oe) - 1; i >= 0; i-- {732				node := p.oe[i]733				switch node.DataAtom {734				case a.Li:735					p.oe = p.oe[:i]736				case a.Address, a.Div, a.P:737					continue738				default:739					if !isSpecialElement(node) {740						continue741					}742				}743				break744			}745			p.popUntil(buttonScope, a.P)746			p.addElement()747		case a.Dd, a.Dt:748			p.framesetOK = false749			for i := len(p.oe) - 1; i >= 0; i-- {750				node := p.oe[i]751				switch node.DataAtom {752				case a.Dd, a.Dt:753					p.oe = p.oe[:i]754				case a.Address, a.Div, a.P:755					continue756				default:757					if !isSpecialElement(node) {758						continue759					}760				}761				break762			}763			p.popUntil(buttonScope, a.P)764			p.addElement()765		case a.Plaintext:766			p.popUntil(buttonScope, a.P)767			p.addElement()768		case a.Button:769			p.popUntil(defaultScope, a.Button)770			p.reconstructActiveFormattingElements()771			p.addElement()772			p.framesetOK = false773		case a.A:774			for i := len(p.afe) - 1; i >= 0 && p.afe[i].Type != scopeMarkerNode; i-- {775				if n := p.afe[i]; n.Type == ElementNode && n.DataAtom == a.A {776					p.inBodyEndTagFormatting(a.A)777					p.oe.remove(n)778					p.afe.remove(n)779					break780				}781			}782			p.reconstructActiveFormattingElements()783			p.addFormattingElement()784		case a.B, a.Big, a.Code, a.Em, a.Font, a.I, a.S, a.Small, a.Strike, a.Strong, a.Tt, a.U:785			p.reconstructActiveFormattingElements()786			p.addFormattingElement()787		case a.Nobr:788			p.reconstructActiveFormattingElements()789			if p.elementInScope(defaultScope, a.Nobr) {790				p.inBodyEndTagFormatting(a.Nobr)791				p.reconstructActiveFormattingElements()792			}793			p.addFormattingElement()794		case a.Applet, a.Marquee, a.Object:795			p.reconstructActiveFormattingElements()796			p.addElement()797			p.afe = append(p.afe, &scopeMarker)798			p.framesetOK = false799		case a.Table:800			if !p.quirks {801				p.popUntil(buttonScope, a.P)802			}803			p.addElement()804			p.framesetOK = false805			p.im = inTableIM806			return true807		case a.Area, a.Br, a.Embed, a.Img, a.Input, a.Keygen, a.Wbr:808			p.reconstructActiveFormattingElements()809			p.addElement()810			p.oe.pop()811			p.acknowledgeSelfClosingTag()812			if p.tok.DataAtom == a.Input {813				for _, t := range p.tok.Attr {814					if t.Key == "type" {815						if strings.ToLower(t.Val) == "hidden" {816							// Skip setting framesetOK = false817							return true818						}819					}820				}821			}822			p.framesetOK = false823		case a.Param, a.Source, a.Track:824			p.addElement()825			p.oe.pop()826			p.acknowledgeSelfClosingTag()827		case a.Hr:828			p.popUntil(buttonScope, a.P)829			p.addElement()830			p.oe.pop()831			p.acknowledgeSelfClosingTag()832			p.framesetOK = false833		case a.Image:834			p.tok.DataAtom = a.Img835			p.tok.Data = a.Img.String()836			return false837		case a.Isindex:838			if p.form != nil {839				// Ignore the token.840				return true841			}842			action := ""843			prompt := "This is a searchable index. Enter search keywords: "844			attr := []Attribute{{Key: "name", Val: "isindex"}}845			for _, t := range p.tok.Attr {846				switch t.Key {847				case "action":848					action = t.Val849				case "name":850					// Ignore the attribute.851				case "prompt":852					prompt = t.Val853				default:854					attr = append(attr, t)855				}856			}857			p.acknowledgeSelfClosingTag()858			p.popUntil(buttonScope, a.P)859			p.parseImpliedToken(StartTagToken, a.Form, a.Form.String())860			if action != "" {861				p.form.Attr = []Attribute{{Key: "action", Val: action}}862			}863			p.parseImpliedToken(StartTagToken, a.Hr, a.Hr.String())864			p.parseImpliedToken(StartTagToken, a.Label, a.Label.String())865			p.addText(prompt)866			p.addChild(&Node{867				Type:     ElementNode,868				DataAtom: a.Input,869				Data:     a.Input.String(),870				Attr:     attr,871			})872			p.oe.pop()873			p.parseImpliedToken(EndTagToken, a.Label, a.Label.String())874			p.parseImpliedToken(StartTagToken, a.Hr, a.Hr.String())875			p.parseImpliedToken(EndTagToken, a.Form, a.Form.String())876		case a.Textarea:877			p.addElement()878			p.setOriginalIM()879			p.framesetOK = false880			p.im = textIM881		case a.Xmp:882			p.popUntil(buttonScope, a.P)883			p.reconstructActiveFormattingElements()884			p.framesetOK = false885			p.addElement()886			p.setOriginalIM()887			p.im = textIM888		case a.Iframe:889			p.framesetOK = false890			p.addElement()891			p.setOriginalIM()892			p.im = textIM893		case a.Noembed, a.Noscript:894			p.addElement()895			p.setOriginalIM()896			p.im = textIM897		case a.Select:898			p.reconstructActiveFormattingElements()899			p.addElement()900			p.framesetOK = false901			p.im = inSelectIM902			return true903		case a.Optgroup, a.Option:904			if p.top().DataAtom == a.Option {905				p.oe.pop()906			}907			p.reconstructActiveFormattingElements()908			p.addElement()909		case a.Rp, a.Rt:910			if p.elementInScope(defaultScope, a.Ruby) {911				p.generateImpliedEndTags()912			}913			p.addElement()914		case a.Math, a.Svg:915			p.reconstructActiveFormattingElements()916			if p.tok.DataAtom == a.Math {917				adjustAttributeNames(p.tok.Attr, mathMLAttributeAdjustments)918			} else {919				adjustAttributeNames(p.tok.Attr, svgAttributeAdjustments)920			}921			adjustForeignAttributes(p.tok.Attr)922			p.addElement()923			p.top().Namespace = p.tok.Data924			if p.hasSelfClosingToken {925				p.oe.pop()926				p.acknowledgeSelfClosingTag()927			}928			return true929		case a.Caption, a.Col, a.Colgroup, a.Frame, a.Head, a.Tbody, a.Td, a.Tfoot, a.Th, a.Thead, a.Tr:930			// Ignore the token.931		default:932			p.reconstructActiveFormattingElements()933			p.addElement()934		}935	case EndTagToken:936		switch p.tok.DataAtom {937		case a.Body:938			if p.elementInScope(defaultScope, a.Body) {939				p.im = afterBodyIM940			}941		case a.Html:942			if p.elementInScope(defaultScope, a.Body) {943				p.parseImpliedToken(EndTagToken, a.Body, a.Body.String())944				return false945			}946			return true947		case a.Address, a.Article, a.Aside, a.Blockquote, a.Button, a.Center, a.Details, a.Dir, a.Div, a.Dl, a.Fieldset, a.Figcaption, a.Figure, a.Footer, a.Header, a.Hgroup, a.Listing, a.Menu, a.Nav, a.Ol, a.Pre, a.Section, a.Summary, a.Ul:948			p.popUntil(defaultScope, p.tok.DataAtom)949		case a.Form:950			node := p.form951			p.form = nil952			i := p.indexOfElementInScope(defaultScope, a.Form)953			if node == nil || i == -1 || p.oe[i] != node {954				// Ignore the token.955				return true956			}957			p.generateImpliedEndTags()958			p.oe.remove(node)959		case a.P:960			if !p.elementInScope(buttonScope, a.P) {961				p.parseImpliedToken(StartTagToken, a.P, a.P.String())962			}963			p.popUntil(buttonScope, a.P)964		case a.Li:965			p.popUntil(listItemScope, a.Li)966		case a.Dd, a.Dt:967			p.popUntil(defaultScope, p.tok.DataAtom)968		case a.H1, a.H2, a.H3, a.H4, a.H5, a.H6:969			p.popUntil(defaultScope, a.H1, a.H2, a.H3, a.H4, a.H5, a.H6)970		case a.A, a.B, a.Big, a.Code, a.Em, a.Font, a.I, a.Nobr, a.S, a.Small, a.Strike, a.Strong, a.Tt, a.U:971			p.inBodyEndTagFormatting(p.tok.DataAtom)972		case a.Applet, a.Marquee, a.Object:973			if p.popUntil(defaultScope, p.tok.DataAtom) {974				p.clearActiveFormattingElements()975			}976		case a.Br:977			p.tok.Type = StartTagToken978			return false979		default:980			p.inBodyEndTagOther(p.tok.DataAtom)981		}982	case CommentToken:983		p.addChild(&Node{984			Type: CommentNode,985			Data: p.tok.Data,986		})987	}988	return true989}990func (p *parser) inBodyEndTagFormatting(tagAtom a.Atom) {991	// This is the "adoption agency" algorithm, described at992	// https://html.spec.whatwg.org/multipage/syntax.html#adoptionAgency993	// TODO: this is a fairly literal line-by-line translation of that algorithm.994	// Once the code successfully parses the comprehensive test suite, we should995	// refactor this code to be more idiomatic.996	// Steps 1-4. The outer loop.997	for i := 0; i < 8; i++ {998		// Step 5. Find the formatting element.999		var formattingElement *Node1000		for j := len(p.afe) - 1; j >= 0; j-- {1001			if p.afe[j].Type == scopeMarkerNode {1002				break1003			}1004			if p.afe[j].DataAtom == tagAtom {1005				formattingElement = p.afe[j]1006				break1007			}1008		}1009		if formattingElement == nil {1010			p.inBodyEndTagOther(tagAtom)1011			return1012		}1013		feIndex := p.oe.index(formattingElement)1014		if feIndex == -1 {1015			p.afe.remove(formattingElement)1016			return1017		}1018		if !p.elementInScope(defaultScope, tagAtom) {1019			// Ignore the tag.1020			return1021		}1022		// Steps 9-10. Find the furthest block.1023		var furthestBlock *Node1024		for _, e := range p.oe[feIndex:] {1025			if isSpecialElement(e) {1026				furthestBlock = e1027				break1028			}1029		}1030		if furthestBlock == nil {1031			e := p.oe.pop()1032			for e != formattingElement {1033				e = p.oe.pop()1034			}1035			p.afe.remove(e)1036			return1037		}1038		// Steps 11-12. Find the common ancestor and bookmark node.1039		commonAncestor := p.oe[feIndex-1]1040		bookmark := p.afe.index(formattingElement)1041		// Step 13. The inner loop. Find the lastNode to reparent.1042		lastNode := furthestBlock1043		node := furthestBlock1044		x := p.oe.index(node)1045		// Steps 13.1-13.21046		for j := 0; j < 3; j++ {1047			// Step 13.3.1048			x--1049			node = p.oe[x]1050			// Step 13.4 - 13.5.1051			if p.afe.index(node) == -1 {1052				p.oe.remove(node)1053				continue1054			}1055			// Step 13.6.1056			if node == formattingElement {1057				break1058			}1059			// Step 13.7.1060			clone := node.clone()1061			p.afe[p.afe.index(node)] = clone1062			p.oe[p.oe.index(node)] = clone1063			node = clone1064			// Step 13.8.1065			if lastNode == furthestBlock {1066				bookmark = p.afe.index(node) + 11067			}1068			// Step 13.9.1069			if lastNode.Parent != nil {1070				lastNode.Parent.RemoveChild(lastNode)1071			}1072			node.AppendChild(lastNode)1073			// Step 13.10.1074			lastNode = node1075		}1076		// Step 14. Reparent lastNode to the common ancestor,1077		// or for misnested table nodes, to the foster parent.1078		if lastNode.Parent != nil {1079			lastNode.Parent.RemoveChild(lastNode)1080		}1081		switch commonAncestor.DataAtom {1082		case a.Table, a.Tbody, a.Tfoot, a.Thead, a.Tr:1083			p.fosterParent(lastNode)1084		default:1085			commonAncestor.AppendChild(lastNode)1086		}1087		// Steps 15-17. Reparent nodes from the furthest block's children1088		// to a clone of the formatting element.1089		clone := formattingElement.clone()1090		reparentChildren(clone, furthestBlock)1091		furthestBlock.AppendChild(clone)1092		// Step 18. Fix up the list of active formatting elements.1093		if oldLoc := p.afe.index(formattingElement); oldLoc != -1 && oldLoc < bookmark {1094			// Move the bookmark with the rest of the list.1095			bookmark--1096		}1097		p.afe.remove(formattingElement)1098		p.afe.insert(bookmark, clone)1099		// Step 19. Fix up the stack of open elements.1100		p.oe.remove(formattingElement)1101		p.oe.insert(p.oe.index(furthestBlock)+1, clone)1102	}1103}1104// inBodyEndTagOther performs the "any other end tag" algorithm for inBodyIM.1105// "Any other end tag" handling from 12.2.5.5 The rules for parsing tokens in foreign content1106// https://html.spec.whatwg.org/multipage/syntax.html#parsing-main-inforeign1107func (p *parser) inBodyEndTagOther(tagAtom a.Atom) {1108	for i := len(p.oe) - 1; i >= 0; i-- {1109		if p.oe[i].DataAtom == tagAtom {1110			p.oe = p.oe[:i]1111			break1112		}1113		if isSpecialElement(p.oe[i]) {1114			break1115		}1116	}1117}1118// Section 12.2.5.4.8.1119func textIM(p *parser) bool {1120	switch p.tok.Type {1121	case ErrorToken:1122		p.oe.pop()1123	case TextToken:1124		d := p.tok.Data1125		if n := p.oe.top(); n.DataAtom == a.Textarea && n.FirstChild == nil {1126			// Ignore a newline at the start of a <textarea> block.1127			if d != "" && d[0] == '\r' {1128				d = d[1:]1129			}1130			if d != "" && d[0] == '\n' {1131				d = d[1:]1132			}1133		}1134		if d == "" {1135			return true1136		}1137		p.addText(d)1138		return true1139	case EndTagToken:1140		p.oe.pop()1141	}1142	p.im = p.originalIM1143	p.originalIM = nil1144	return p.tok.Type == EndTagToken1145}1146// Section 12.2.5.4.9.1147func inTableIM(p *parser) bool {1148	switch p.tok.Type {1149	case ErrorToken:1150		// Stop parsing.1151		return true1152	case TextToken:1153		p.tok.Data = strings.Replace(p.tok.Data, "\x00", "", -1)1154		switch p.oe.top().DataAtom {1155		case a.Table, a.Tbody, a.Tfoot, a.Thead, a.Tr:1156			if strings.Trim(p.tok.Data, whitespace) == "" {1157				p.addText(p.tok.Data)1158				return true1159			}1160		}1161	case StartTagToken:1162		switch p.tok.DataAtom {1163		case a.Caption:1164			p.clearStackToContext(tableScope)1165			p.afe = append(p.afe, &scopeMarker)1166			p.addElement()1167			p.im = inCaptionIM1168			return true1169		case a.Colgroup:1170			p.clearStackToContext(tableScope)1171			p.addElement()1172			p.im = inColumnGroupIM1173			return true1174		case a.Col:1175			p.parseImpliedToken(StartTagToken, a.Colgroup, a.Colgroup.String())1176			return false1177		case a.Tbody, a.Tfoot, a.Thead:1178			p.clearStackToContext(tableScope)1179			p.addElement()1180			p.im = inTableBodyIM1181			return true1182		case a.Td, a.Th, a.Tr:1183			p.parseImpliedToken(StartTagToken, a.Tbody, a.Tbody.String())1184			return false1185		case a.Table:1186			if p.popUntil(tableScope, a.Table) {1187				p.resetInsertionMode()1188				return false1189			}1190			// Ignore the token.1191			return true1192		case a.Style, a.Script:1193			return inHeadIM(p)1194		case a.Input:1195			for _, t := range p.tok.Attr {1196				if t.Key == "type" && strings.ToLower(t.Val) == "hidden" {1197					p.addElement()1198					p.oe.pop()1199					return true1200				}1201			}1202			// Otherwise drop down to the default action.1203		case a.Form:1204			if p.form != nil {1205				// Ignore the token.1206				return true1207			}1208			p.addElement()1209			p.form = p.oe.pop()1210		case a.Select:1211			p.reconstructActiveFormattingElements()1212			switch p.top().DataAtom {1213			case a.Table, a.Tbody, a.Tfoot, a.Thead, a.Tr:1214				p.fosterParenting = true1215			}1216			p.addElement()1217			p.fosterParenting = false1218			p.framesetOK = false1219			p.im = inSelectInTableIM1220			return true1221		}1222	case EndTagToken:1223		switch p.tok.DataAtom {1224		case a.Table:1225			if p.popUntil(tableScope, a.Table) {1226				p.resetInsertionMode()1227				return true1228			}1229			// Ignore the token.1230			return true1231		case a.Body, a.Caption, a.Col, a.Colgroup, a.Html, a.Tbody, a.Td, a.Tfoot, a.Th, a.Thead, a.Tr:1232			// Ignore the token.1233			return true1234		}1235	case CommentToken:1236		p.addChild(&Node{1237			Type: CommentNode,1238			Data: p.tok.Data,1239		})1240		return true1241	case DoctypeToken:1242		// Ignore the token.1243		return true1244	}1245	p.fosterParenting = true1246	defer func() { p.fosterParenting = false }()1247	return inBodyIM(p)1248}1249// Section 12.2.5.4.11.1250func inCaptionIM(p *parser) bool {1251	switch p.tok.Type {1252	case StartTagToken:1253		switch p.tok.DataAtom {1254		case a.Caption, a.Col, a.Colgroup, a.Tbody, a.Td, a.Tfoot, a.Thead, a.Tr:1255			if p.popUntil(tableScope, a.Caption) {1256				p.clearActiveFormattingElements()1257				p.im = inTableIM1258				return false1259			} else {1260				// Ignore the token.1261				return true1262			}1263		case a.Select:1264			p.reconstructActiveFormattingElements()1265			p.addElement()1266			p.framesetOK = false1267			p.im = inSelectInTableIM1268			return true1269		}1270	case EndTagToken:1271		switch p.tok.DataAtom {1272		case a.Caption:1273			if p.popUntil(tableScope, a.Caption) {1274				p.clearActiveFormattingElements()1275				p.im = inTableIM1276			}1277			return true1278		case a.Table:1279			if p.popUntil(tableScope, a.Caption) {1280				p.clearActiveFormattingElements()1281				p.im = inTableIM1282				return false1283			} else {1284				// Ignore the token.1285				return true1286			}1287		case a.Body, a.Col, a.Colgroup, a.Html, a.Tbody, a.Td, a.Tfoot, a.Th, a.Thead, a.Tr:1288			// Ignore the token.1289			return true1290		}1291	}1292	return inBodyIM(p)1293}1294// Section 12.2.5.4.12.1295func inColumnGroupIM(p *parser) bool {1296	switch p.tok.Type {1297	case TextToken:1298		s := strings.TrimLeft(p.tok.Data, whitespace)1299		if len(s) < len(p.tok.Data) {1300			// Add the initial whitespace to the current node.1301			p.addText(p.tok.Data[:len(p.tok.Data)-len(s)])1302			if s == "" {1303				return true1304			}1305			p.tok.Data = s1306		}1307	case CommentToken:1308		p.addChild(&Node{1309			Type: CommentNode,1310			Data: p.tok.Data,1311		})1312		return true1313	case DoctypeToken:1314		// Ignore the token.1315		return true1316	case StartTagToken:1317		switch p.tok.DataAtom {1318		case a.Html:1319			return inBodyIM(p)1320		case a.Col:1321			p.addElement()1322			p.oe.pop()1323			p.acknowledgeSelfClosingTag()1324			return true1325		}1326	case EndTagToken:1327		switch p.tok.DataAtom {1328		case a.Colgroup:1329			if p.oe.top().DataAtom != a.Html {1330				p.oe.pop()1331				p.im = inTableIM1332			}1333			return true1334		case a.Col:1335			// Ignore the token.1336			return true1337		}1338	}1339	if p.oe.top().DataAtom != a.Html {1340		p.oe.pop()1341		p.im = inTableIM1342		return false1343	}1344	return true1345}1346// Section 12.2.5.4.13.1347func inTableBodyIM(p *parser) bool {1348	switch p.tok.Type {1349	case StartTagToken:1350		switch p.tok.DataAtom {1351		case a.Tr:1352			p.clearStackToContext(tableBodyScope)1353			p.addElement()1354			p.im = inRowIM1355			return true1356		case a.Td, a.Th:1357			p.parseImpliedToken(StartTagToken, a.Tr, a.Tr.String())1358			return false1359		case a.Caption, a.Col, a.Colgroup, a.Tbody, a.Tfoot, a.Thead:1360			if p.popUntil(tableScope, a.Tbody, a.Thead, a.Tfoot) {1361				p.im = inTableIM1362				return false1363			}1364			// Ignore the token.1365			return true1366		}1367	case EndTagToken:1368		switch p.tok.DataAtom {1369		case a.Tbody, a.Tfoot, a.Thead:1370			if p.elementInScope(tableScope, p.tok.DataAtom) {1371				p.clearStackToContext(tableBodyScope)1372				p.oe.pop()1373				p.im = inTableIM1374			}1375			return true1376		case a.Table:1377			if p.popUntil(tableScope, a.Tbody, a.Thead, a.Tfoot) {1378				p.im = inTableIM1379				return false1380			}1381			// Ignore the token.1382			return true1383		case a.Body, a.Caption, a.Col, a.Colgroup, a.Html, a.Td, a.Th, a.Tr:1384			// Ignore the token.1385			return true1386		}1387	case CommentToken:1388		p.addChild(&Node{1389			Type: CommentNode,1390			Data: p.tok.Data,1391		})1392		return true1393	}1394	return inTableIM(p)1395}1396// Section 12.2.5.4.14.1397func inRowIM(p *parser) bool {1398	switch p.tok.Type {1399	case StartTagToken:1400		switch p.tok.DataAtom {1401		case a.Td, a.Th:1402			p.clearStackToContext(tableRowScope)1403			p.addElement()1404			p.afe = append(p.afe, &scopeMarker)1405			p.im = inCellIM1406			return true1407		case a.Caption, a.Col, a.Colgroup, a.Tbody, a.Tfoot, a.Thead, a.Tr:1408			if p.popUntil(tableScope, a.Tr) {1409				p.im = inTableBodyIM1410				return false1411			}1412			// Ignore the token.1413			return true1414		}1415	case EndTagToken:1416		switch p.tok.DataAtom {1417		case a.Tr:1418			if p.popUntil(tableScope, a.Tr) {1419				p.im = inTableBodyIM1420				return true1421			}1422			// Ignore the token.1423			return true1424		case a.Table:1425			if p.popUntil(tableScope, a.Tr) {1426				p.im = inTableBodyIM1427				return false1428			}1429			// Ignore the token.1430			return true1431		case a.Tbody, a.Tfoot, a.Thead:1432			if p.elementInScope(tableScope, p.tok.DataAtom) {1433				p.parseImpliedToken(EndTagToken, a.Tr, a.Tr.String())1434				return false1435			}1436			// Ignore the token.1437			return true1438		case a.Body, a.Caption, a.Col, a.Colgroup, a.Html, a.Td, a.Th:1439			// Ignore the token.1440			return true1441		}1442	}1443	return inTableIM(p)1444}1445// Section 12.2.5.4.15.1446func inCellIM(p *parser) bool {1447	switch p.tok.Type {1448	case StartTagToken:1449		switch p.tok.DataAtom {1450		case a.Caption, a.Col, a.Colgroup, a.Tbody, a.Td, a.Tfoot, a.Th, a.Thead, a.Tr:1451			if p.popUntil(tableScope, a.Td, a.Th) {1452				// Close the cell and reprocess.1453				p.clearActiveFormattingElements()1454				p.im = inRowIM1455				return false1456			}1457			// Ignore the token.1458			return true1459		case a.Select:1460			p.reconstructActiveFormattingElements()1461			p.addElement()1462			p.framesetOK = false1463			p.im = inSelectInTableIM1464			return true1465		}1466	case EndTagToken:1467		switch p.tok.DataAtom {1468		case a.Td, a.Th:1469			if !p.popUntil(tableScope, p.tok.DataAtom) {1470				// Ignore the token.1471				return true1472			}1473			p.clearActiveFormattingElements()1474			p.im = inRowIM1475			return true1476		case a.Body, a.Caption, a.Col, a.Colgroup, a.Html:1477			// Ignore the token.1478			return true1479		case a.Table, a.Tbody, a.Tfoot, a.Thead, a.Tr:1480			if !p.elementInScope(tableScope, p.tok.DataAtom) {1481				// Ignore the token.1482				return true1483			}1484			// Close the cell and reprocess.1485			p.popUntil(tableScope, a.Td, a.Th)1486			p.clearActiveFormattingElements()1487			p.im = inRowIM1488			return false1489		}1490	}1491	return inBodyIM(p)1492}1493// Section 12.2.5.4.16.1494func inSelectIM(p *parser) bool {1495	switch p.tok.Type {1496	case ErrorToken:1497		// Stop parsing.1498		return true1499	case TextToken:1500		p.addText(strings.Replace(p.tok.Data, "\x00", "", -1))1501	case StartTagToken:1502		switch p.tok.DataAtom {1503		case a.Html:1504			return inBodyIM(p)1505		case a.Option:1506			if p.top().DataAtom == a.Option {1507				p.oe.pop()1508			}1509			p.addElement()1510		case a.Optgroup:1511			if p.top().DataAtom == a.Option {1512				p.oe.pop()1513			}1514			if p.top().DataAtom == a.Optgroup {1515				p.oe.pop()1516			}1517			p.addElement()1518		case a.Select:1519			p.tok.Type = EndTagToken1520			return false1521		case a.Input, a.Keygen, a.Textarea:1522			if p.elementInScope(selectScope, a.Select) {1523				p.parseImpliedToken(EndTagToken, a.Select, a.Select.String())1524				return false1525			}1526			// In order to properly ignore <textarea>, we need to change the tokenizer mode.1527			p.tokenizer.NextIsNotRawText()1528			// Ignore the token.1529			return true1530		case a.Script:1531			return inHeadIM(p)1532		}1533	case EndTagToken:1534		switch p.tok.DataAtom {1535		case a.Option:1536			if p.top().DataAtom == a.Option {1537				p.oe.pop()1538			}1539		case a.Optgroup:1540			i := len(p.oe) - 11541			if p.oe[i].DataAtom == a.Option {1542				i--1543			}1544			if p.oe[i].DataAtom == a.Optgroup {1545				p.oe = p.oe[:i]1546			}1547		case a.Select:1548			if p.popUntil(selectScope, a.Select) {1549				p.resetInsertionMode()1550			}1551		}1552	case CommentToken:1553		p.addChild(&Node{1554			Type: CommentNode,1555			Data: p.tok.Data,1556		})1557	case DoctypeToken:1558		// Ignore the token.1559		return true1560	}1561	return true1562}1563// Section 12.2.5.4.17.1564func inSelectInTableIM(p *parser) bool {1565	switch p.tok.Type {1566	case StartTagToken, EndTagToken:1567		switch p.tok.DataAtom {1568		case a.Caption, a.Table, a.Tbody, a.Tfoot, a.Thead, a.Tr, a.Td, a.Th:1569			if p.tok.Type == StartTagToken || p.elementInScope(tableScope, p.tok.DataAtom) {1570				p.parseImpliedToken(EndTagToken, a.Select, a.Select.String())1571				return false1572			} else {1573				// Ignore the token.1574				return true1575			}1576		}1577	}1578	return inSelectIM(p)1579}1580// Section 12.2.5.4.18.1581func afterBodyIM(p *parser) bool {1582	switch p.tok.Type {1583	case ErrorToken:1584		// Stop parsing.1585		return true1586	case TextToken:1587		s := strings.TrimLeft(p.tok.Data, whitespace)1588		if len(s) == 0 {1589			// It was all whitespace.1590			return inBodyIM(p)1591		}1592	case StartTagToken:1593		if p.tok.DataAtom == a.Html {1594			return inBodyIM(p)1595		}1596	case EndTagToken:1597		if p.tok.DataAtom == a.Html {1598			if !p.fragment {1599				p.im = afterAfterBodyIM1600			}1601			return true1602		}1603	case CommentToken:1604		// The comment is attached to the <html> element.1605		if len(p.oe) < 1 || p.oe[0].DataAtom != a.Html {1606			panic("html: bad parser state: <html> element not found, in the after-body insertion mode")1607		}1608		p.oe[0].AppendChild(&Node{1609			Type: CommentNode,1610			Data: p.tok.Data,1611		})1612		return true1613	}1614	p.im = inBodyIM1615	return false1616}1617// Section 12.2.5.4.19.1618func inFramesetIM(p *parser) bool {1619	switch p.tok.Type {1620	case CommentToken:1621		p.addChild(&Node{1622			Type: CommentNode,1623			Data: p.tok.Data,1624		})1625	case TextToken:1626		// Ignore all text but whitespace.1627		s := strings.Map(func(c rune) rune {1628			switch c {1629			case ' ', '\t', '\n', '\f', '\r':1630				return c1631			}1632			return -11633		}, p.tok.Data)1634		if s != "" {1635			p.addText(s)1636		}1637	case StartTagToken:1638		switch p.tok.DataAtom {1639		case a.Html:1640			return inBodyIM(p)1641		case a.Frameset:1642			p.addElement()1643		case a.Frame:1644			p.addElement()1645			p.oe.pop()1646			p.acknowledgeSelfClosingTag()1647		case a.Noframes:1648			return inHeadIM(p)1649		}1650	case EndTagToken:1651		switch p.tok.DataAtom {1652		case a.Frameset:1653			if p.oe.top().DataAtom != a.Html {1654				p.oe.pop()1655				if p.oe.top().DataAtom != a.Frameset {1656					p.im = afterFramesetIM1657					return true1658				}1659			}1660		}1661	default:1662		// Ignore the token.1663	}1664	return true1665}1666// Section 12.2.5.4.20.1667func afterFramesetIM(p *parser) bool {1668	switch p.tok.Type {1669	case CommentToken:1670		p.addChild(&Node{1671			Type: CommentNode,1672			Data: p.tok.Data,1673		})1674	case TextToken:1675		// Ignore all text but whitespace.1676		s := strings.Map(func(c rune) rune {1677			switch c {1678			case ' ', '\t', '\n', '\f', '\r':1679				return c1680			}1681			return -11682		}, p.tok.Data)1683		if s != "" {1684			p.addText(s)1685		}1686	case StartTagToken:1687		switch p.tok.DataAtom {1688		case a.Html:1689			return inBodyIM(p)1690		case a.Noframes:1691			return inHeadIM(p)1692		}1693	case EndTagToken:1694		switch p.tok.DataAtom {1695		case a.Html:1696			p.im = afterAfterFramesetIM1697			return true1698		}1699	default:1700		// Ignore the token.1701	}1702	return true1703}1704// Section 12.2.5.4.21.1705func afterAfterBodyIM(p *parser) bool {1706	switch p.tok.Type {1707	case ErrorToken:1708		// Stop parsing.1709		return true1710	case TextToken:1711		s := strings.TrimLeft(p.tok.Data, whitespace)1712		if len(s) == 0 {1713			// It was all whitespace.1714			return inBodyIM(p)1715		}1716	case StartTagToken:1717		if p.tok.DataAtom == a.Html {1718			return inBodyIM(p)1719		}1720	case CommentToken:1721		p.doc.AppendChild(&Node{1722			Type: CommentNode,1723			Data: p.tok.Data,1724		})1725		return true1726	case DoctypeToken:1727		return inBodyIM(p)1728	}1729	p.im = inBodyIM1730	return false1731}1732// Section 12.2.5.4.22.1733func afterAfterFramesetIM(p *parser) bool {1734	switch p.tok.Type {1735	case CommentToken:1736		p.doc.AppendChild(&Node{1737			Type: CommentNode,1738			Data: p.tok.Data,1739		})1740	case TextToken:1741		// Ignore all text but whitespace.1742		s := strings.Map(func(c rune) rune {1743			switch c {1744			case ' ', '\t', '\n', '\f', '\r':1745				return c1746			}1747			return -11748		}, p.tok.Data)1749		if s != "" {1750			p.tok.Data = s1751			return inBodyIM(p)1752		}1753	case StartTagToken:1754		switch p.tok.DataAtom {1755		case a.Html:1756			return inBodyIM(p)1757		case a.Noframes:1758			return inHeadIM(p)1759		}1760	case DoctypeToken:1761		return inBodyIM(p)1762	default:1763		// Ignore the token.1764	}1765	return true1766}1767const whitespaceOrNUL = whitespace + "\x00"1768// Section 12.2.5.5.1769func parseForeignContent(p *parser) bool {1770	switch p.tok.Type {1771	case TextToken:1772		if p.framesetOK {1773			p.framesetOK = strings.TrimLeft(p.tok.Data, whitespaceOrNUL) == ""1774		}1775		p.tok.Data = strings.Replace(p.tok.Data, "\x00", "\ufffd", -1)1776		p.addText(p.tok.Data)1777	case CommentToken:1778		p.addChild(&Node{1779			Type: CommentNode,1780			Data: p.tok.Data,1781		})1782	case StartTagToken:1783		b := breakout[p.tok.Data]1784		if p.tok.DataAtom == a.Font {1785		loop:1786			for _, attr := range p.tok.Attr {1787				switch attr.Key {1788				case "color", "face", "size":1789					b = true1790					break loop1791				}1792			}1793		}1794		if b {1795			for i := len(p.oe) - 1; i >= 0; i-- {1796				n := p.oe[i]1797				if n.Namespace == "" || htmlIntegrationPoint(n) || mathMLTextIntegrationPoint(n) {1798					p.oe = p.oe[:i+1]1799					break1800				}1801			}1802			return false1803		}1804		switch p.top().Namespace {1805		case "math":1806			adjustAttributeNames(p.tok.Attr, mathMLAttributeAdjustments)1807		case "svg":1808			// Adjust SVG tag names. The tokenizer lower-cases tag names, but1809			// SVG wants e.g. "foreignObject" with a capital second "O".1810			if x := svgTagNameAdjustments[p.tok.Data]; x != "" {1811				p.tok.DataAtom = a.Lookup([]byte(x))1812				p.tok.Data = x1813			}1814			adjustAttributeNames(p.tok.Attr, svgAttributeAdjustments)1815		default:1816			panic("html: bad parser state: unexpected namespace")1817		}1818		adjustForeignAttributes(p.tok.Attr)1819		namespace := p.top().Namespace1820		p.addElement()1821		p.top().Namespace = namespace1822		if namespace != "" {1823			// Don't let the tokenizer go into raw text mode in foreign content1824			// (e.g. in an SVG <title> tag).1825			p.tokenizer.NextIsNotRawText()1826		}1827		if p.hasSelfClosingToken {1828			p.oe.pop()1829			p.acknowledgeSelfClosingTag()1830		}1831	case EndTagToken:1832		for i := len(p.oe) - 1; i >= 0; i-- {1833			if p.oe[i].Namespace == "" {1834				return p.im(p)1835			}1836			if strings.EqualFold(p.oe[i].Data, p.tok.Data) {1837				p.oe = p.oe[:i]1838				break1839			}1840		}1841		return true1842	default:1843		// Ignore the token.1844	}1845	return true1846}1847// Section 12.2.5.1848func (p *parser) inForeignContent() bool {1849	if len(p.oe) == 0 {1850		return false1851	}1852	n := p.oe[len(p.oe)-1]1853	if n.Namespace == "" {1854		return false1855	}1856	if mathMLTextIntegrationPoint(n) {1857		if p.tok.Type == StartTagToken && p.tok.DataAtom != a.Mglyph && p.tok.DataAtom != a.Malignmark {1858			return false1859		}1860		if p.tok.Type == TextToken {1861			return false1862		}1863	}1864	if n.Namespace == "math" && n.DataAtom == a.AnnotationXml && p.tok.Type == StartTagToken && p.tok.DataAtom == a.Svg {1865		return false1866	}1867	if htmlIntegrationPoint(n) && (p.tok.Type == StartTagToken || p.tok.Type == TextToken) {1868		return false1869	}1870	if p.tok.Type == ErrorToken {1871		return false1872	}1873	return true1874}1875// parseImpliedToken parses a token as though it had appeared in the parser's1876// input.1877func (p *parser) parseImpliedToken(t TokenType, dataAtom a.Atom, data string) {1878	realToken, selfClosing := p.tok, p.hasSelfClosingToken1879	p.tok = Token{1880		Type:     t,1881		DataAtom: dataAtom,1882		Data:     data,1883	}1884	p.hasSelfClosingToken = false1885	p.parseCurrentToken()1886	p.tok, p.hasSelfClosingToken = realToken, selfClosing1887}1888// parseCurrentToken runs the current token through the parsing routines1889// until it is consumed.1890func (p *parser) parseCurrentToken() {1891	if p.tok.Type == SelfClosingTagToken {1892		p.hasSelfClosingToken = true1893		p.tok.Type = StartTagToken1894	}1895	consumed := false1896	for !consumed {1897		if p.inForeignContent() {1898			consumed = parseForeignContent(p)1899		} else {1900			consumed = p.im(p)1901		}1902	}1903	if p.hasSelfClosingToken {1904		// This is a parse error, but ignore it.1905		p.hasSelfClosingToken = false1906	}1907}1908func (p *parser) parse() error {1909	// Iterate until EOF. Any other error will cause an early return.1910	var err error1911	for err != io.EOF {1912		// CDATA sections are allowed only in foreign content.1913		n := p.oe.top()1914		p.tokenizer.AllowCDATA(n != nil && n.Namespace != "")1915		// Read and parse the next token.1916		p.tokenizer.Next()1917		p.tok = p.tokenizer.Token()1918		if p.tok.Type == ErrorToken {1919			err = p.tokenizer.Err()1920			if err != nil && err != io.EOF {1921				return err1922			}1923		}1924		p.parseCurrentToken()1925	}1926	return nil1927}1928// Parse returns the parse tree for the HTML from the given Reader.1929// The input is assumed to be UTF-8 encoded.1930func Parse(r io.Reader) (*Node, error) {1931	p := &parser{1932		tokenizer: NewTokenizer(r),1933		doc: &Node{1934			Type: DocumentNode,1935		},1936		scripting:  true,1937		framesetOK: true,1938		im:         initialIM,1939	}1940	err := p.parse()1941	if err != nil {1942		return nil, err1943	}1944	return p.doc, nil1945}1946// ParseFragment parses a fragment of HTML and returns the nodes that were1947// found. If the fragment is the InnerHTML for an existing element, pass that1948// element in context.1949func ParseFragment(r io.Reader, context *Node) ([]*Node, error) {1950	contextTag := ""1951	if context != nil {1952		if context.Type != ElementNode {1953			return nil, errors.New("html: ParseFragment of non-element Node")1954		}1955		// The next check isn't just context.DataAtom.String() == context.Data because1956		// it is valid to pass an element whose tag isn't a known atom. For example,1957		// DataAtom == 0 and Data = "tagfromthefuture" is perfectly consistent.1958		if context.DataAtom != a.Lookup([]byte(context.Data)) {1959			return nil, fmt.Errorf("html: inconsistent Node: DataAtom=%q, Data=%q", context.DataAtom, context.Data)1960		}1961		contextTag = context.DataAtom.String()1962	}1963	p := &parser{1964		tokenizer: NewTokenizerFragment(r, contextTag),1965		doc: &Node{1966			Type: DocumentNode,1967		},1968		scripting: true,1969		fragment:  true,1970		context:   context,1971	}1972	root := &Node{1973		Type:     ElementNode,1974		DataAtom: a.Html,1975		Data:     a.Html.String(),1976	}1977	p.doc.AppendChild(root)1978	p.oe = nodeStack{root}1979	p.resetInsertionMode()1980	for n := context; n != nil; n = n.Parent {1981		if n.Type == ElementNode && n.DataAtom == a.Form {1982			p.form = n1983			break1984		}1985	}1986	err := p.parse()1987	if err != nil {1988		return nil, err1989	}1990	parent := p.doc1991	if context != nil {1992		parent = root1993	}1994	var result []*Node1995	for c := parent.FirstChild; c != nil; {1996		next := c.NextSibling1997		parent.RemoveChild(c)1998		result = append(result, c)1999		c = next2000	}2001	return result, nil2002}...

html.go

Source:html.go

...196//THEAD element197func (out *OutPrint) THEAD(a ...interface{}) {198	tHead(out, a...)199}200func startTFoot(out *OutPrint, props ...string) {201	StartElem(out, "tfoot", props...)202}203//StartTFOOT element204func (out *OutPrint) StartTFOOT(props ...string) {205	startTFoot(out, props...)206}207func endTFoot(out *OutPrint) {208	EndElem(out, "tfoot")209}210//EndTFOOT element211func (out *OutPrint) EndTFOOT() {212	endTFoot(out)213}214func tFoot(out *OutPrint, a ...interface{}) {215	Elem(out, "tfoot", a...)216}217//TFOOT element218func (out *OutPrint) TFOOT(a ...interface{}) {219	tFoot(out, a...)220}221func startTh(out *OutPrint, props ...string) {222	StartElem(out, "th", props...)223}224//StartTH element225func (out *OutPrint) StartTH(props ...string) {226	startTh(out, props...)...

TFoot

Using AI Code Generation

1import (2func main() {3	fmt.Println(html.TFoot)4}5import (6func main() {7	fmt.Println(html.THead)8}9import (10func main() {11	fmt.Println(html.THtml)12}13import (14func main() {15	fmt.Println(html.TBody)16}17import (18func main() {19	fmt.Println(html.Td)20}21import (22func main() {23	fmt.Println(html.Title)24}25import (26func main() {27	fmt.Println(html.Tr)28}29import (30func main() {31	fmt.Println(html.TdAttr)32}33import (34func main() {35	fmt.Println(html.Textarea)36}37import (38func main() {39	fmt.Println(html.TfootAttr)40}41import (42func main() {43	fmt.Println(html.TheadAttr)44}45import (46func main() {47	fmt.Println(html.TitleAttr)48}

TFoot

Using AI Code Generation

1import (2func main() {3	f, err := os.Create("TFoot.html")4	if err != nil {5		fmt.Println(err)6	}7	defer f.Close()8	io.WriteString(f, `<html>9}

TFoot

Using AI Code Generation

1import (2func main() {3	http.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {4		fmt.Fprint(w, `<table>`)5		fmt.Fprint(w, `<tr><td>1</td><td>2</td></tr>`)6		fmt.Fprint(w, `<tr><td>3</td><td>4</td></tr>`)7		fmt.Fprint(w, `</table>`)8	})9	http.ListenAndServe(":8080", nil)10}

TFoot

Using AI Code Generation

1import (2func main() {3	if err != nil {4		panic(err)5	}6	defer res.Body.Close()7	if res.StatusCode != 200 {8		panic(res.StatusCode)9	}10	doc, err := goquery.NewDocumentFromReader(res.Body)11	if err != nil {12		panic(err)13	}14	doc.Find("table").Each(func(index int, item *goquery.Selection) {15		item.Find("tfoot").Each(func(i int, s *goquery.Selection) {16			fmt.Println(s.Text())17		})18	})19}

TFoot

Using AI Code Generation

1import (2func main() {3	file, err := os.Open("index.html")4	if err != nil {5		log.Fatal(err)6	}7	doc, err := html.Parse(file)8	if err != nil {9		log.Fatal(err)10	}11	forEachNode(doc, startElement, endElement)12}13func forEachNode(n *html.Node, pre, post func(n *html.Node)) {14	if pre != nil {15		pre(n)16	}17	fmt.Println(n.Data)18	for c := n.FirstChild; c != nil; c = c.NextSibling {19		forEachNode(c, pre, post)20	}21	if post != nil {22		post(n)23	}24}25func startElement(n *html.Node) {26	if n.Type == html.ElementNode {27		fmt.Printf("<%s", n.Data)28		for _, a := range n.Attr {29			fmt.Printf(" %s=%q", a.Key, a.Val)30		}31		fmt.Println(">")32	}33}34func endElement(n *html.Node) {35	if n.Type == html.ElementNode {36		fmt.Printf("</%s>", n.Data)37	}38}

TFoot

Using AI Code Generation

1import (2func main() {3	http.HandleFunc("/", handler)4	http.ListenAndServe(":8080", nil)5}6func handler(w http.ResponseWriter, r *http.Request) {7	fmt.Fprint(w, htm)8}

Automation Testing Tutorials

Learn to execute automation testing from scratch with LambdaTest Learning Hub. Right from setting up the prerequisites to run your first automation test, to following best practices and diving deeper into advanced test scenarios. LambdaTest Learning Hubs compile a list of step-by-step guides to help you be proficient with different test automation frameworks i.e. Selenium, Cypress, TestNG etc.