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How to use Matches method of html Package

Best K6 code snippet using html.Matches

selector.go

Source:selector.go

1package cascadia23import (4	"bytes"5	"fmt"6	"regexp"7	"strings"89	"golang.org/x/net/html"10)1112// the Selector type, and functions for creating them1314// A Selector is a function which tells whether a node matches or not.15type Selector func(*html.Node) bool1617// hasChildMatch returns whether n has any child that matches a.18func hasChildMatch(n *html.Node, a Selector) bool {19	for c := n.FirstChild; c != nil; c = c.NextSibling {20		if a(c) {21			return true22		}23	}24	return false25}2627// hasDescendantMatch performs a depth-first search of n's descendants,28// testing whether any of them match a. It returns true as soon as a match is29// found, or false if no match is found.30func hasDescendantMatch(n *html.Node, a Selector) bool {31	for c := n.FirstChild; c != nil; c = c.NextSibling {32		if a(c) || (c.Type == html.ElementNode && hasDescendantMatch(c, a)) {33			return true34		}35	}36	return false37}3839// Compile parses a selector and returns, if successful, a Selector object40// that can be used to match against html.Node objects.41func Compile(sel string) (Selector, error) {42	p := &parser{s: sel}43	compiled, err := p.parseSelectorGroup()44	if err != nil {45		return nil, err46	}4748	if p.i < len(sel) {49		return nil, fmt.Errorf("parsing %q: %d bytes left over", sel, len(sel)-p.i)50	}5152	return compiled, nil53}5455// MustCompile is like Compile, but panics instead of returning an error.56func MustCompile(sel string) Selector {57	compiled, err := Compile(sel)58	if err != nil {59		panic(err)60	}61	return compiled62}6364// MatchAll returns a slice of the nodes that match the selector,65// from n and its children.66func (s Selector) MatchAll(n *html.Node) []*html.Node {67	return s.matchAllInto(n, nil)68}6970func (s Selector) matchAllInto(n *html.Node, storage []*html.Node) []*html.Node {71	if s(n) {72		storage = append(storage, n)73	}7475	for child := n.FirstChild; child != nil; child = child.NextSibling {76		storage = s.matchAllInto(child, storage)77	}7879	return storage80}8182// Match returns true if the node matches the selector.83func (s Selector) Match(n *html.Node) bool {84	return s(n)85}8687// MatchFirst returns the first node that matches s, from n and its children.88func (s Selector) MatchFirst(n *html.Node) *html.Node {89	if s.Match(n) {90		return n91	}9293	for c := n.FirstChild; c != nil; c = c.NextSibling {94		m := s.MatchFirst(c)95		if m != nil {96			return m97		}98	}99	return nil100}101102// Filter returns the nodes in nodes that match the selector.103func (s Selector) Filter(nodes []*html.Node) (result []*html.Node) {104	for _, n := range nodes {105		if s(n) {106			result = append(result, n)107		}108	}109	return result110}111112// typeSelector returns a Selector that matches elements with a given tag name.113func typeSelector(tag string) Selector {114	tag = toLowerASCII(tag)115	return func(n *html.Node) bool {116		return n.Type == html.ElementNode && n.Data == tag117	}118}119120// toLowerASCII returns s with all ASCII capital letters lowercased.121func toLowerASCII(s string) string {122	var b []byte123	for i := 0; i < len(s); i++ {124		if c := s[i]; 'A' <= c && c <= 'Z' {125			if b == nil {126				b = make([]byte, len(s))127				copy(b, s)128			}129			b[i] = s[i] + ('a' - 'A')130		}131	}132133	if b == nil {134		return s135	}136137	return string(b)138}139140// attributeSelector returns a Selector that matches elements141// where the attribute named key satisifes the function f.142func attributeSelector(key string, f func(string) bool) Selector {143	key = toLowerASCII(key)144	return func(n *html.Node) bool {145		if n.Type != html.ElementNode {146			return false147		}148		for _, a := range n.Attr {149			if a.Key == key && f(a.Val) {150				return true151			}152		}153		return false154	}155}156157// attributeExistsSelector returns a Selector that matches elements that have158// an attribute named key.159func attributeExistsSelector(key string) Selector {160	return attributeSelector(key, func(string) bool { return true })161}162163// attributeEqualsSelector returns a Selector that matches elements where164// the attribute named key has the value val.165func attributeEqualsSelector(key, val string) Selector {166	return attributeSelector(key,167		func(s string) bool {168			return s == val169		})170}171172// attributeNotEqualSelector returns a Selector that matches elements where173// the attribute named key does not have the value val.174func attributeNotEqualSelector(key, val string) Selector {175	key = toLowerASCII(key)176	return func(n *html.Node) bool {177		if n.Type != html.ElementNode {178			return false179		}180		for _, a := range n.Attr {181			if a.Key == key && a.Val == val {182				return false183			}184		}185		return true186	}187}188189// attributeIncludesSelector returns a Selector that matches elements where190// the attribute named key is a whitespace-separated list that includes val.191func attributeIncludesSelector(key, val string) Selector {192	return attributeSelector(key,193		func(s string) bool {194			for s != "" {195				i := strings.IndexAny(s, " \t\r\n\f")196				if i == -1 {197					return s == val198				}199				if s[:i] == val {200					return true201				}202				s = s[i+1:]203			}204			return false205		})206}207208// attributeDashmatchSelector returns a Selector that matches elements where209// the attribute named key equals val or starts with val plus a hyphen.210func attributeDashmatchSelector(key, val string) Selector {211	return attributeSelector(key,212		func(s string) bool {213			if s == val {214				return true215			}216			if len(s) <= len(val) {217				return false218			}219			if s[:len(val)] == val && s[len(val)] == '-' {220				return true221			}222			return false223		})224}225226// attributePrefixSelector returns a Selector that matches elements where227// the attribute named key starts with val.228func attributePrefixSelector(key, val string) Selector {229	return attributeSelector(key,230		func(s string) bool {231			if strings.TrimSpace(s) == "" {232				return false233			}234			return strings.HasPrefix(s, val)235		})236}237238// attributeSuffixSelector returns a Selector that matches elements where239// the attribute named key ends with val.240func attributeSuffixSelector(key, val string) Selector {241	return attributeSelector(key,242		func(s string) bool {243			if strings.TrimSpace(s) == "" {244				return false245			}246			return strings.HasSuffix(s, val)247		})248}249250// attributeSubstringSelector returns a Selector that matches nodes where251// the attribute named key contains val.252func attributeSubstringSelector(key, val string) Selector {253	return attributeSelector(key,254		func(s string) bool {255			if strings.TrimSpace(s) == "" {256				return false257			}258			return strings.Contains(s, val)259		})260}261262// attributeRegexSelector returns a Selector that matches nodes where263// the attribute named key matches the regular expression rx264func attributeRegexSelector(key string, rx *regexp.Regexp) Selector {265	return attributeSelector(key,266		func(s string) bool {267			return rx.MatchString(s)268		})269}270271// intersectionSelector returns a selector that matches nodes that match272// both a and b.273func intersectionSelector(a, b Selector) Selector {274	return func(n *html.Node) bool {275		return a(n) && b(n)276	}277}278279// unionSelector returns a selector that matches elements that match280// either a or b.281func unionSelector(a, b Selector) Selector {282	return func(n *html.Node) bool {283		return a(n) || b(n)284	}285}286287// negatedSelector returns a selector that matches elements that do not match a.288func negatedSelector(a Selector) Selector {289	return func(n *html.Node) bool {290		if n.Type != html.ElementNode {291			return false292		}293		return !a(n)294	}295}296297// writeNodeText writes the text contained in n and its descendants to b.298func writeNodeText(n *html.Node, b *bytes.Buffer) {299	switch n.Type {300	case html.TextNode:301		b.WriteString(n.Data)302	case html.ElementNode:303		for c := n.FirstChild; c != nil; c = c.NextSibling {304			writeNodeText(c, b)305		}306	}307}308309// nodeText returns the text contained in n and its descendants.310func nodeText(n *html.Node) string {311	var b bytes.Buffer312	writeNodeText(n, &b)313	return b.String()314}315316// nodeOwnText returns the contents of the text nodes that are direct317// children of n.318func nodeOwnText(n *html.Node) string {319	var b bytes.Buffer320	for c := n.FirstChild; c != nil; c = c.NextSibling {321		if c.Type == html.TextNode {322			b.WriteString(c.Data)323		}324	}325	return b.String()326}327328// textSubstrSelector returns a selector that matches nodes that329// contain the given text.330func textSubstrSelector(val string) Selector {331	return func(n *html.Node) bool {332		text := strings.ToLower(nodeText(n))333		return strings.Contains(text, val)334	}335}336337// ownTextSubstrSelector returns a selector that matches nodes that338// directly contain the given text339func ownTextSubstrSelector(val string) Selector {340	return func(n *html.Node) bool {341		text := strings.ToLower(nodeOwnText(n))342		return strings.Contains(text, val)343	}344}345346// textRegexSelector returns a selector that matches nodes whose text matches347// the specified regular expression348func textRegexSelector(rx *regexp.Regexp) Selector {349	return func(n *html.Node) bool {350		return rx.MatchString(nodeText(n))351	}352}353354// ownTextRegexSelector returns a selector that matches nodes whose text355// directly matches the specified regular expression356func ownTextRegexSelector(rx *regexp.Regexp) Selector {357	return func(n *html.Node) bool {358		return rx.MatchString(nodeOwnText(n))359	}360}361362// hasChildSelector returns a selector that matches elements363// with a child that matches a.364func hasChildSelector(a Selector) Selector {365	return func(n *html.Node) bool {366		if n.Type != html.ElementNode {367			return false368		}369		return hasChildMatch(n, a)370	}371}372373// hasDescendantSelector returns a selector that matches elements374// with any descendant that matches a.375func hasDescendantSelector(a Selector) Selector {376	return func(n *html.Node) bool {377		if n.Type != html.ElementNode {378			return false379		}380		return hasDescendantMatch(n, a)381	}382}383384// nthChildSelector returns a selector that implements :nth-child(an+b).385// If last is true, implements :nth-last-child instead.386// If ofType is true, implements :nth-of-type instead.387func nthChildSelector(a, b int, last, ofType bool) Selector {388	return func(n *html.Node) bool {389		if n.Type != html.ElementNode {390			return false391		}392393		parent := n.Parent394		if parent == nil {395			return false396		}397398		if parent.Type == html.DocumentNode {399			return false400		}401402		i := -1403		count := 0404		for c := parent.FirstChild; c != nil; c = c.NextSibling {405			if (c.Type != html.ElementNode) || (ofType && c.Data != n.Data) {406				continue407			}408			count++409			if c == n {410				i = count411				if !last {412					break413				}414			}415		}416417		if i == -1 {418			// This shouldn't happen, since n should always be one of its parent's children.419			return false420		}421422		if last {423			i = count - i + 1424		}425426		i -= b427		if a == 0 {428			return i == 0429		}430431		return i%a == 0 && i/a >= 0432	}433}434435// simpleNthChildSelector returns a selector that implements :nth-child(b).436// If ofType is true, implements :nth-of-type instead.437func simpleNthChildSelector(b int, ofType bool) Selector {438	return func(n *html.Node) bool {439		if n.Type != html.ElementNode {440			return false441		}442443		parent := n.Parent444		if parent == nil {445			return false446		}447448		if parent.Type == html.DocumentNode {449			return false450		}451452		count := 0453		for c := parent.FirstChild; c != nil; c = c.NextSibling {454			if c.Type != html.ElementNode || (ofType && c.Data != n.Data) {455				continue456			}457			count++458			if c == n {459				return count == b460			}461			if count >= b {462				return false463			}464		}465		return false466	}467}468469// simpleNthLastChildSelector returns a selector that implements470// :nth-last-child(b). If ofType is true, implements :nth-last-of-type471// instead.472func simpleNthLastChildSelector(b int, ofType bool) Selector {473	return func(n *html.Node) bool {474		if n.Type != html.ElementNode {475			return false476		}477478		parent := n.Parent479		if parent == nil {480			return false481		}482483		if parent.Type == html.DocumentNode {484			return false485		}486487		count := 0488		for c := parent.LastChild; c != nil; c = c.PrevSibling {489			if c.Type != html.ElementNode || (ofType && c.Data != n.Data) {490				continue491			}492			count++493			if c == n {494				return count == b495			}496			if count >= b {497				return false498			}499		}500		return false501	}502}503504// onlyChildSelector returns a selector that implements :only-child.505// If ofType is true, it implements :only-of-type instead.506func onlyChildSelector(ofType bool) Selector {507	return func(n *html.Node) bool {508		if n.Type != html.ElementNode {509			return false510		}511512		parent := n.Parent513		if parent == nil {514			return false515		}516517		if parent.Type == html.DocumentNode {518			return false519		}520521		count := 0522		for c := parent.FirstChild; c != nil; c = c.NextSibling {523			if (c.Type != html.ElementNode) || (ofType && c.Data != n.Data) {524				continue525			}526			count++527			if count > 1 {528				return false529			}530		}531532		return count == 1533	}534}535536// inputSelector is a Selector that matches input, select, textarea and button elements.537func inputSelector(n *html.Node) bool {538	return n.Type == html.ElementNode && (n.Data == "input" || n.Data == "select" || n.Data == "textarea" || n.Data == "button")539}540541// emptyElementSelector is a Selector that matches empty elements.542func emptyElementSelector(n *html.Node) bool {543	if n.Type != html.ElementNode {544		return false545	}546547	for c := n.FirstChild; c != nil; c = c.NextSibling {548		switch c.Type {549		case html.ElementNode, html.TextNode:550			return false551		}552	}553554	return true555}556557// descendantSelector returns a Selector that matches an element if558// it matches d and has an ancestor that matches a.559func descendantSelector(a, d Selector) Selector {560	return func(n *html.Node) bool {561		if !d(n) {562			return false563		}564565		for p := n.Parent; p != nil; p = p.Parent {566			if a(p) {567				return true568			}569		}570571		return false572	}573}574575// childSelector returns a Selector that matches an element if576// it matches d and its parent matches a.577func childSelector(a, d Selector) Selector {578	return func(n *html.Node) bool {579		return d(n) && n.Parent != nil && a(n.Parent)580	}581}582583// siblingSelector returns a Selector that matches an element584// if it matches s2 and in is preceded by an element that matches s1.585// If adjacent is true, the sibling must be immediately before the element.586func siblingSelector(s1, s2 Selector, adjacent bool) Selector {587	return func(n *html.Node) bool {588		if !s2(n) {589			return false590		}591592		if adjacent {593			for n = n.PrevSibling; n != nil; n = n.PrevSibling {594				if n.Type == html.TextNode || n.Type == html.CommentNode {595					continue596				}597				return s1(n)598			}599			return false600		}601602		// Walk backwards looking for element that matches s1603		for c := n.PrevSibling; c != nil; c = c.PrevSibling {604			if s1(c) {605				return true606			}607		}608609		return false610	}611}612613// rootSelector implements :root614func rootSelector(n *html.Node) bool {615	if n.Type != html.ElementNode {616		return false617	}618	if n.Parent == nil {619		return false620	}621	return n.Parent.Type == html.DocumentNode622}
...

Matches

Using AI Code Generation

1import (2func main() {3	doc, err := html.Parse(os.Stdin)4	if err != nil {5		fmt.Fprintf(os.Stderr, "findlinks1: %v6		os.Exit(1)7	}8	for _, link := range visit(nil, doc) {9		fmt.Println(link)10	}11}12func visit(links []string, n *html.Node) []string {13	if n.Type == html.ElementNode && n.Data == "a" {14		for _, a := range n.Attr {15			if a.Key == "href" {16				links = append(links, a.Val)17			}18		}19	}20	for c := n.FirstChild; c != nil; c = c.NextSibling {21		links = visit(links, c)22	}23}

Matches

Using AI Code Generation

1import (2func main() {3	doc, err := html.Parse(os.Stdin)4	if err != nil {5		fmt.Fprintf(os.Stderr, "findlinks1: %v6		os.Exit(1)7	}8	for _, link := range visit(nil, doc) {9		fmt.Println(link)10	}11}12func visit(links []string, n *html.Node) []string {13	if n.Type == html.ElementNode && n.Data == "a" {14		for _, a := range n.Attr {15			if a.Key == "href" {16				links = append(links, a.Val)17			}18		}19	}20	for c := n.FirstChild; c != nil; c = c.NextSibling {21		links = visit(links, c)22	}23}24import (25func main() {26	doc, err := html.Parse(os.Stdin)27	if err != nil {28		fmt.Fprintf(os.Stderr, "findlinks1: %v29		os.Exit(1)30	}31	for _, link := range visit(nil, doc) {32		fmt.Println(link)33	}34}35func visit(links []string, n *html.Node) []string {36	if n.Type == html.ElementNode && n.Data == "a" {37		for _, a := range n.Attr {38			if a.Key == "href" {39				links = append(links, a.Val)40			}41		}42	}43	for c := n.FirstChild; c != nil; c = c.NextSibling {44		links = visit(links, c)45	}46}

Matches

Using AI Code Generation

1import (2func main() {3	for _, url := range os.Args[1:] {4		resp, err := http.Get(url)5		if err != nil {6			fmt.Fprintf(os.Stderr, "fetch: %v7			os.Exit(1)8		}9		doc, err := html.Parse(resp.Body)10		resp.Body.Close()11		if err != nil {12			fmt.Fprintf(os.Stderr, "findlinks1: %v13			os.Exit(1)14		}15		for _, link := range visit(nil, doc) {16			fmt.Println(link)17		}18	}19}20func visit(links []string, n *html.Node) []string {21	if n.Type == html.ElementNode && n.Data == "a" {22		for _, a := range n.Attr {23			if a.Key == "href" {24				links = append(links, a.Val)25			}26		}27	}28	for c := n.FirstChild; c != nil; c = c.NextSibling {29		links = visit(links, c)30	}31}

Matches

Using AI Code Generation

1import (2func main() {3    if err != nil {4        fmt.Println(err)5    }6    defer resp.Body.Close()7    body, err := ioutil.ReadAll(resp.Body)8    if err != nil {9        fmt.Println(err)10    }11    doc, err := html.Parse(strings.NewReader(string(body)))12    if err != nil {13        fmt.Println(err)14    }15    fmt.Println(html.Render(doc))16    fmt.Println("---------------------------------------------------")17    for _, link := range visit(nil, doc) {18        fmt.Println(link)19    }20}21func visit(links []string, n *html.Node) []string {22    if n.Type == html.ElementNode && n.Data == "a" {23        for _, a := range n.Attr {24            if a.Key == "href" {25                links = append(links, a.Val)26            }27        }28    }29    for c := n.FirstChild; c != nil; c = c.NextSibling {30        links = visit(links, c)31    }32}

Matches

Using AI Code Generation

1import (2func main() {3	if err != nil {4		fmt.Println(err)5	}6	defer resp.Body.Close()7	body, err := ioutil.ReadAll(resp.Body)8	if err != nil {9		fmt.Println(err)10	}11	re := regexp.MustCompile("<title>(.*)</title>")12	matches := re.FindStringSubmatch(string(body))13	fmt.Println(matches[1])14}15import (16func main() {17	if err != nil {18		fmt.Println(err)19	}20	defer resp.Body.Close()21	body, err := ioutil.ReadAll(resp.Body)22	if err != nil {23		fmt.Println(err)24	}25	re := regexp.MustCompile("<title>(.*)</title>")26	matches := re.FindAllString(string(body), -1)27	fmt.Println(matches)28}29import (30func main() {31	if err != nil {32		fmt.Println(err)33	}34	defer resp.Body.Close()35	body, err := ioutil.ReadAll(resp.Body)36	if err != nil {37		fmt.Println(err)38	}39	re := regexp.MustCompile("<title>(.*)</title>")40	matches := re.FindAllStringSubmatch(string(body), -1)41	fmt.Println(matches)42}43import (44func main() {45	if err != nil {46		fmt.Println(err)47	}48	defer resp.Body.Close()49	body, err := ioutil.ReadAll(resp.Body)

Matches

Using AI Code Generation

1import (2func main() {3	resp, err := http.Get(url)4	if err != nil {5		fmt.Fprintf(os.Stderr, "fetch: %v6		os.Exit(1)7	}8	b, err := ioutil.ReadAll(resp.Body)9	resp.Body.Close()10	if err != nil {11		fmt.Fprintf(os.Stderr, "fetch: reading %s: %v12		os.Exit(1)13	}14	doc, err := html.Parse(resp.Body)15	if err != nil {16		fmt.Fprintf(os.Stderr, "findlinks1: %v17		os.Exit(1)18	}19	for _, link := range visit(nil, doc) {20		fmt.Println(link)21	}22}23func visit(links []string, n *html.Node) []string {24	if n.Type == html.ElementNode && n.Data == "a" {25		for _, a := range n.Attr {26			if a.Key == "href" {27				links = append(links, a.Val)28			}29		}30	}31	for c := n.FirstChild; c != nil; c = c.NextSibling {32		links = visit(links, c)33	}34}

Matches

Using AI Code Generation

1import (2func main() {3    if err != nil {4        fmt.Println("Error in getting response")5    }6    defer resp.Body.Close()7    body, err := ioutil.ReadAll(resp.Body)8    if err != nil {9        fmt.Println("Error in reading response")10    }11    doc, err := html.Parse(resp.Body)12    if err != nil {13        fmt.Println("Error in parsing response")14    }15    fmt.Println(doc)16    fmt.Println(html.UnescapeString(string(body)))17    fmt.Println("Title:", html.Title(string(body)))18    fmt.Println("Text:", html.EscapeString(string(body)))19    fmt.Println("Match:", html.Match([]byte("a"), []byte("a")))20    fmt.Println("Match:", html.Match([]byte("a"), []byte("b")))21    fmt.Println("Match:", html.Match([]byte("a"), []byte("ab")))22    fmt.Println("Match:", html.Match([]byte("a"), []byte("ba")))23    fmt.Println("Match:", html.Match([]byte("a"), []byte("")))24    fmt.Println("Match:", html.Match([]byte("a"), []byte(" ")))25}

Matches

Using AI Code Generation

1import (2func main() {3	for _, url := range os.Args[1:] {4		doc, err := html.Parse(getPageContent(url))5		if err != nil {6			fmt.Fprintf(os.Stderr, "findlinks1: %v7			os.Exit(1)8		}9		for _, link := range visit(nil, doc) {10			fmt.Println(link)11		}12	}13}14func getPageContent(url string) *http.Response {15	resp, err := http.Get(url)16	if err != nil {17		fmt.Fprintf(os.Stderr, "findlinks1: %v18		os.Exit(1)19	}20}21func visit(links []string, n *html.Node) []string {22	if n.Type == html.ElementNode && n.Data == "a" {23		for _, a := range n.Attr {24			if a.Key == "href" {25				links = append(links, a.Val)26			}27		}28	}29	for c := n.FirstChild; c != nil; c = c.NextSibling {30		links = visit(links, c)31	}32}33import (34func main() {35	for _, url := range os.Args[1:] {36		doc, err := html.Parse(getPageContent(url))37		if err != nil {38			fmt.Fprintf(os.Stderr, "findlinks1: %v39			os.Exit(1)40		}41		for _, link := range visit(nil, doc) {42			fmt.Println(link)43		}44	}45}46func getPageContent(url string) *http.Response {47	resp, err := http.Get(url)48	if err != nil {49		fmt.Fprintf(os.Stderr, "findlinks1: %v50		os.Exit(1)51	}52}53func visit(links []string, n *html.Node) []string {54	if n.Type == html.ElementNode && n.Data == "a" {55		for _, a := range n.Attr {56			if matched, _ := regexp.MatchString("^http", a.Val); matched {57				links = append(links,

Matches

Using AI Code Generation

1import (2func main() {3    if err != nil {4        log.Fatal(err)5    }6    defer resp.Body.Close()7    doc, err := html.Parse(resp.Body)8    if err != nil {9        log.Fatal(err)10    }11    for _, link := range visit(nil, doc) {12        fmt.Println(link)13    }14}15func visit(links []string, n *html.Node) []string {16    if n.Type == html.ElementNode && n.Data == "a" {17        for _, a := range n.Attr {18            if a.Key == "href" {19                links = append(links, a.Val)20            }21        }22    }23    for c := n.FirstChild; c != nil; c = c.NextSibling {24        links = visit(links, c)25    }26}

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.