How to use Match method of pkg Package

Best Keploy code snippet using pkg.Match

workspace_symbol.go

Source:workspace_symbol.go Github

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...33// assumed that "project-wide" means "across all workspaces". Hence why34// WorkspaceSymbols receives the views []View.35//36// However, it then becomes unclear what it would mean to call WorkspaceSymbols37// with a different configured SymbolMatcher per View. Therefore we assume that38// Session level configuration will define the SymbolMatcher to be used for the39// WorkspaceSymbols method.40func WorkspaceSymbols(ctx context.Context, matcherType SymbolMatcher, style SymbolStyle, views []View, query string) ([]protocol.SymbolInformation, error) {41 ctx, done := event.Start(ctx, "source.WorkspaceSymbols")42 defer done()43 if query == "" {44 return nil, nil45 }46 sc := newSymbolCollector(matcherType, style, query)47 return sc.walk(ctx, views)48}49// A matcherFunc determines the matching score of a symbol.50//51// See the comment for symbolCollector for more information.52type matcherFunc func(name string) float6453// A symbolizer returns the best symbol match for name with pkg, according to54// some heuristic.55//56// See the comment for symbolCollector for more information.57type symbolizer func(name string, pkg Package, m matcherFunc) (string, float64)58func fullyQualifiedSymbolMatch(name string, pkg Package, matcher matcherFunc) (string, float64) {59 _, score := dynamicSymbolMatch(name, pkg, matcher)60 if score > 0 {61 return pkg.PkgPath() + "." + name, score62 }63 return "", 064}65func dynamicSymbolMatch(name string, pkg Package, matcher matcherFunc) (string, float64) {66 // Prefer any package-qualified match.67 pkgQualified := pkg.Name() + "." + name68 if match, score := bestMatch(pkgQualified, matcher); match != "" {69 return match, score70 }71 fullyQualified := pkg.PkgPath() + "." + name72 if match, score := bestMatch(fullyQualified, matcher); match != "" {73 return match, score74 }75 return "", 076}77func packageSymbolMatch(name string, pkg Package, matcher matcherFunc) (string, float64) {78 qualified := pkg.Name() + "." + name79 if matcher(qualified) > 0 {80 return qualified, 181 }82 return "", 083}84// bestMatch returns the highest scoring symbol suffix of fullPath, starting85// from the right and splitting on selectors and path components.86//87// e.g. given a symbol path of the form 'host.com/dir/pkg.type.field', we88// check the match quality of the following:89// - field90// - type.field91// - pkg.type.field92// - dir/pkg.type.field93// - host.com/dir/pkg.type.field94//95// and return the best match, along with its score.96//97// This is used to implement the 'dynamic' symbol style.98func bestMatch(fullPath string, matcher matcherFunc) (string, float64) {99 pathParts := strings.Split(fullPath, "/")100 dottedParts := strings.Split(pathParts[len(pathParts)-1], ".")101 var best string102 var score float64103 for i := 0; i < len(dottedParts); i++ {104 path := strings.Join(dottedParts[len(dottedParts)-1-i:], ".")105 if match := matcher(path); match > score {106 best = path107 score = match108 }109 }110 for i := 0; i < len(pathParts); i++ {111 path := strings.Join(pathParts[len(pathParts)-1-i:], "/")112 if match := matcher(path); match > score {113 best = path114 score = match115 }116 }117 return best, score118}119// symbolCollector holds context as we walk Packages, gathering symbols that120// match a given query.121//122// How we match symbols is parameterized by two interfaces:123// * A matcherFunc determines how well a string symbol matches a query. It124// returns a non-negative score indicating the quality of the match. A score125// of zero indicates no match.126// * A symbolizer determines how we extract the symbol for an object. This127// enables the 'symbolStyle' configuration option.128type symbolCollector struct {129 // These types parameterize the symbol-matching pass.130 matcher matcherFunc131 symbolizer symbolizer132 // current holds metadata for the package we are currently walking.133 current *pkgView134 curFile *ParsedGoFile135 res [maxSymbols]symbolInformation136}137func newSymbolCollector(matcher SymbolMatcher, style SymbolStyle, query string) *symbolCollector {138 var m matcherFunc139 switch matcher {140 case SymbolFuzzy:141 m = parseQuery(query)142 case SymbolCaseSensitive:143 m = func(s string) float64 {144 if strings.Contains(s, query) {145 return 1146 }147 return 0148 }149 case SymbolCaseInsensitive:150 q := strings.ToLower(query)151 m = func(s string) float64 {152 if strings.Contains(strings.ToLower(s), q) {153 return 1154 }155 return 0156 }157 default:158 panic(fmt.Errorf("unknown symbol matcher: %v", matcher))159 }160 var s symbolizer161 switch style {162 case DynamicSymbols:163 s = dynamicSymbolMatch164 case FullyQualifiedSymbols:165 s = fullyQualifiedSymbolMatch166 case PackageQualifiedSymbols:167 s = packageSymbolMatch168 default:169 panic(fmt.Errorf("unknown symbol style: %v", style))170 }171 return &symbolCollector{172 matcher: m,173 symbolizer: s,174 }175}176// parseQuery parses a field-separated symbol query, extracting the special177// characters listed below, and returns a matcherFunc corresponding to the AND178// of all field queries.179//180// Special characters:181// ^ match exact prefix182// $ match exact suffix183// ' match exact184//185// In all three of these special queries, matches are 'smart-cased', meaning186// they are case sensitive if the symbol query contains any upper-case187// characters, and case insensitive otherwise.188func parseQuery(q string) matcherFunc {189 fields := strings.Fields(q)190 if len(fields) == 0 {191 return func(string) float64 { return 0 }192 }193 var funcs []matcherFunc194 for _, field := range fields {195 var f matcherFunc196 switch {197 case strings.HasPrefix(field, "^"):198 prefix := field[1:]199 f = smartCase(prefix, func(s string) float64 {200 if strings.HasPrefix(s, prefix) {201 return 1202 }203 return 0204 })205 case strings.HasPrefix(field, "'"):206 exact := field[1:]207 f = smartCase(exact, func(s string) float64 {208 if strings.Contains(s, exact) {209 return 1210 }211 return 0212 })213 case strings.HasSuffix(field, "$"):214 suffix := field[0 : len(field)-1]215 f = smartCase(suffix, func(s string) float64 {216 if strings.HasSuffix(s, suffix) {217 return 1218 }219 return 0220 })221 default:222 fm := fuzzy.NewMatcher(field)223 f = func(s string) float64 {224 return float64(fm.Score(s))225 }226 }227 funcs = append(funcs, f)228 }229 return comboMatcher(funcs).match230}231// smartCase returns a matcherFunc that is case-sensitive if q contains any232// upper-case characters, and case-insensitive otherwise.233func smartCase(q string, m matcherFunc) matcherFunc {234 insensitive := strings.ToLower(q) == q235 return func(s string) float64 {236 if insensitive {237 s = strings.ToLower(s)238 }239 return m(s)240 }241}242type comboMatcher []matcherFunc243func (c comboMatcher) match(s string) float64 {244 score := 1.0245 for _, f := range c {246 score *= f(s)247 }248 return score249}250// walk walks views, gathers symbols, and returns the results.251func (sc *symbolCollector) walk(ctx context.Context, views []View) (_ []protocol.SymbolInformation, err error) {252 toWalk, err := sc.collectPackages(ctx, views)253 if err != nil {254 return nil, err255 }256 // Make sure we only walk files once (we might see them more than once due to257 // build constraints)....

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index.go

Source:index.go Github

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1package gopan2import (3 "compress/gzip"4 "github.com/ian-kent/go-log/log"5 "io/ioutil"6 "os"7 "regexp"8 "strings"9)10func CountIndex(indexes map[string]map[string]*Source) (int, int, int, int) {11 var n1, n2, n3, n4 int12 n1 = len(indexes)13 for fname, _ := range indexes {14 for _, idx := range indexes[fname] {15 n2 += len(idx.Authors)16 for _, auth := range idx.Authors {17 n3 += len(auth.Packages)18 for _, pkg := range auth.Packages {19 n4 += len(pkg.Provides)20 }21 }22 }23 }24 return n1, n2, n3, n425}26func AppendToIndex(index string, source *Source, author *Author, pkg *Package) {27 out, err := os.OpenFile(index, os.O_RDWR|os.O_APPEND|os.O_CREATE, 0660)28 if err != nil {29 log.Error("Error opening index: %s", err.Error())30 return31 }32 out.Write([]byte(source.Name + " [" + source.URL + "]\n"))33 out.Write([]byte(" " + author.Name + " [" + author.URL + "]\n"))34 out.Write([]byte(" " + pkg.Name + " => " + pkg.URL + "\n"))35 for p, pk := range pkg.Provides {36 out.Write([]byte(" " + p + " (" + pk.Version + "): " + pk.File + "\n"))37 }38 out.Close()39}40func RemoveModule(index string, source *Source, author *Author, pkg *Package) {41 out, err := os.OpenFile(index, os.O_RDWR|os.O_APPEND|os.O_CREATE, 0660)42 if err != nil {43 log.Error("Error opening index: %s", err.Error())44 return45 }46 out.Write([]byte(source.Name + " [" + source.URL + "]\n"))47 out.Write([]byte(" " + author.Name + " [" + author.URL + "]\n"))48 out.Write([]byte(" -" + pkg.Name + " => " + pkg.URL + "\n"))49 out.Close()50}51func SaveIndex(index string, indexes map[string]*Source) {52 // TODO append, but needs to know which stuff is new53 //out, err := os.OpenFile(".gopancache/index", os.O_RDWR|os.O_APPEND, 0660)54 out, err := os.Create(index)55 if err != nil {56 log.Error("Error creating index: %s", err.Error())57 }58 for _, source := range indexes {59 out.Write([]byte(source.Name + " [" + source.URL + "]\n"))60 log.Trace(source.Name)61 for _, author := range source.Authors {62 out.Write([]byte(" " + author.Name + " [" + author.URL + "]\n"))63 log.Trace(" %s", author.Name)64 for _, pkg := range author.Packages {65 out.Write([]byte(" " + pkg.Name + " => " + pkg.URL + "\n"))66 log.Trace(" %s => %s", pkg.Name, pkg.URL)67 for p, pk := range pkg.Provides {68 out.Write([]byte(" " + p + " (" + pk.Version + "): " + pk.File + "\n"))69 log.Trace(" %s (%s): %s", p, pk.Version, pk.File)70 }71 }72 }73 }74 out.Close()75}76func LoadIndex(index string) map[string]*Source {77 indexes := make(map[string]*Source)78 log.Info("Loading cached index file %s", index)79 if _, err := os.Stat(index); err != nil {80 log.Error("Cached index file not found")81 return indexes82 }83 var bytes []byte84 if strings.HasSuffix(index, ".gz") {85 fi, err := os.Open(index)86 if err != nil {87 log.Error("Error reading index: %s", err.Error())88 return indexes89 }90 defer fi.Close()91 gz, err := gzip.NewReader(fi)92 if err != nil {93 log.Error("Error creating gzip reader: %s", err.Error())94 return indexes95 }96 bytes, err = ioutil.ReadAll(gz)97 if err != nil {98 log.Error("Error reading from gzip: %s", err.Error())99 return indexes100 }101 } else {102 var err error103 bytes, err = ioutil.ReadFile(index)104 if err != nil {105 log.Error("Error reading index: %s", err.Error())106 return indexes107 }108 }109 lines := strings.Split(string(bytes), "\n")110 var csource *Source111 var cauth *Author112 var cpkg *Package113 resrcauth := regexp.MustCompile("^\\s*(.*)\\s\\[(.*)\\]\\s*$")114 repackage := regexp.MustCompile("^\\s*(.*)\\s=>\\s(.*)\\s*$")115 reprovides := regexp.MustCompile("^\\s*(.*)\\s\\((.*)\\):\\s(.*)\\s*$")116 for _, l := range lines {117 log.Trace("Line: %s", l)118 if strings.HasPrefix(l, " ") {119 // provides120 log.Trace("=> Provides")121 match := reprovides.FindStringSubmatch(l)122 if len(match) > 0 {123 if strings.HasPrefix(match[1], "-") {124 log.Trace(" - Is a removal")125 match[1] = strings.TrimPrefix(match[1], "-")126 if _, ok := cpkg.Provides[match[1]]; ok {127 delete(cpkg.Provides, match[1])128 }129 if len(cpkg.Provides) == 0 {130 delete(cauth.Packages, cpkg.Name)131 cpkg = nil132 }133 if len(cauth.Packages) == 0 {134 delete(csource.Authors, cauth.Name)135 cauth = nil136 }137 if len(csource.Authors) == 0 {138 delete(indexes, csource.Name)139 csource = nil140 }141 } else {142 cpkg.Provides[match[1]] = &PerlPackage{143 Name: match[1],144 Version: match[2],145 Package: cpkg,146 File: match[3],147 }148 }149 }150 } else if strings.HasPrefix(l, " ") {151 // its a package152 log.Trace("=> Package")153 match := repackage.FindStringSubmatch(l)154 if len(match) > 0 {155 if strings.HasPrefix(match[1], "-") {156 log.Trace(" - Is a removal")157 match[1] = strings.TrimPrefix(match[1], "-")158 if _, ok := cauth.Packages[match[1]]; ok {159 delete(cauth.Packages, match[1])160 }161 if len(cauth.Packages) == 0 {162 delete(csource.Authors, cauth.Name)163 cauth = nil164 }165 if len(csource.Authors) == 0 {166 delete(indexes, csource.Name)167 csource = nil168 }169 } else {170 if _, ok := cauth.Packages[match[1]]; ok {171 // we've seen this package before172 log.Trace("Seen this package before: %s", match[1])173 cpkg = cauth.Packages[match[1]]174 continue175 }176 cpkg = &Package{177 Name: match[1],178 URL: match[2],179 Author: cauth,180 Provides: make(map[string]*PerlPackage),181 }182 cauth.Packages[match[1]] = cpkg183 }184 }185 } else if strings.HasPrefix(l, " ") {186 // its an author187 log.Trace("=> Author")188 match := resrcauth.FindStringSubmatch(l)189 if len(match) > 0 {190 if strings.HasPrefix(match[1], "-") {191 log.Trace(" - Is a removal")192 match[1] = strings.TrimPrefix(match[1], "-")193 if _, ok := csource.Authors[match[1]]; ok {194 delete(csource.Authors, match[1])195 }196 if len(csource.Authors) == 0 {197 delete(indexes, csource.Name)198 csource = nil199 }200 } else {201 if _, ok := csource.Authors[match[1]]; ok {202 // we've seen this author before203 log.Trace("Seen this author before: %s", match[1])204 cauth = csource.Authors[match[1]]205 continue206 }207 cauth = &Author{208 Name: match[1],209 URL: match[2],210 Source: csource,211 Packages: make(map[string]*Package, 0),212 }213 csource.Authors[match[1]] = cauth214 }215 }216 } else {217 // its a source218 log.Trace("=> Source")219 match := resrcauth.FindStringSubmatch(l)220 if len(match) > 0 {221 if strings.HasPrefix(match[1], "-") {222 log.Trace(" - Is a removal")223 match[1] = strings.TrimPrefix(match[1], "-")224 if _, ok := indexes[match[1]]; ok {225 delete(indexes, match[1])226 }227 } else {228 seen := false229 for _, idx := range indexes {230 if idx.Name == match[1] {231 // we've seen this source before232 log.Trace("Seen this source before: %s", idx.Name)233 csource = idx234 seen = true235 break236 }237 }238 if seen {239 continue240 }241 csource = &Source{242 Name: match[1],243 URL: match[2],244 Authors: make(map[string]*Author, 0),245 }246 indexes[csource.Name] = csource247 }248 }249 }250 }251 for _, source := range indexes {252 log.Trace(source.Name)253 for _, author := range source.Authors {254 log.Trace(" %s", author.Name)255 for _, pkg := range author.Packages {256 log.Trace(" %s => %s", pkg.Name, pkg.URL)257 }258 }259 }260 return indexes261}...

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Match

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1import (2func main() {3 re := regexp.MustCompile("p([a-z]+)ch")4 fmt.Println(re.MatchString("peach"))5}6import (7func main() {8 re := regexp.MustCompile("p([a-z]+)ch")9 fmt.Println(re.FindString("peach punch"))10}11import (12func main() {13 re := regexp.MustCompile("p([a-z]+)ch")14 fmt.Println(re.FindStringIndex("peach punch"))15}16import (17func main() {18 re := regexp.MustCompile("p([a-z]+)ch")19 fmt.Println(re.FindStringSubmatch("peach punch"))20}21import (22func main() {23 re := regexp.MustCompile("p([a-z]+)ch")24 fmt.Println(re.FindStringSubmatchIndex("peach punch"))25}26import (27func main() {28 re := regexp.MustCompile("p([a-z]+)ch")29 fmt.Println(re.FindAllString("peach punch pinch", -1))30}31import (32func main() {33 re := regexp.MustCompile("p([a-z]+)ch")34 fmt.Println(re.FindAllStringSubmatchIndex("peach punch pinch", -1))35}

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Match

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1import java.util.regex.Matcher;2import java.util.regex.Pattern;3{4public static void main(String[] args)5{6Pattern pattern = Pattern.compile("a*b");7Matcher matcher = pattern.matcher("aaaaab");8boolean b = matcher.matches();9System.out.println(b);10}11}12import java.util.regex.Matcher;13import java.util.regex.Pattern;14{15public static void main(String[] args)16{17Pattern pattern = Pattern.compile("a*b");18Matcher matcher = pattern.matcher("aaaaab");19boolean b = matcher.find();20System.out.println(b);21}22}23import java.util.regex.Matcher;24import java.util.regex.Pattern;25{26public static void main(String[] args)27{28Pattern pattern = Pattern.compile("a*b");29Matcher matcher = pattern.matcher("aaaaab");30boolean b = matcher.lookingAt();31System.out.println(b);32}33}34import java.util.regex.Matcher;35import java.util.regex.Pattern;36{37public static void main(String[] args)38{39Pattern pattern = Pattern.compile("a*b");40Matcher matcher = pattern.matcher("aaaaab");41while(matcher.find())42{43System.out.println("start(): "+matcher.start());44System.out.println("end(): "+matcher.end());45}46}47}48start(): 049end(): 650import java.util.regex.Matcher;51import java.util.regex.Pattern;52{53public static void main(String[] args)54{55Pattern pattern = Pattern.compile("a*b");56Matcher matcher = pattern.matcher("aaaaab");57while(matcher.find())58{59System.out.println("start(): "+matcher.start());60System.out.println("end(): "+matcher.end());61System.out.println("group(): "+matcher.group());62}63}64}65start(): 0

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1import (2func main() {3 p := regexp.MustCompile(`[a-z]+`)4 fmt.Println(p.MatchString("abc"))5 fmt.Println(p.MatchString("123"))6}7import (8func main() {9 p := regexp.MustCompile(`[a-z]+`)10 fmt.Println(p.Match([]byte("abc")))11 fmt.Println(p.Match([]byte("123")))12}13import (14func main() {15 p := regexp.MustCompile(`[a-z]+`)16 fmt.Println(p.FindString("abc"))17 fmt.Println(p.FindString("123"))18}19import (20func main() {21 p := regexp.MustCompile(`[a-z]+`)22 fmt.Println(p.Find([]byte("abc")))23 fmt.Println(p.Find([]byte("123")))24}25import (26func main() {27 p := regexp.MustCompile(`[a-z]+`)28 fmt.Println(p.FindAllString("abc 123", -1))29 fmt.Println(p.FindAllString("123 abc", -1))30}31import (32func main() {33 p := regexp.MustCompile(`[a-z]+`)34 fmt.Println(p.FindAll([]byte("abc 123"), -1))35 fmt.Println(p.FindAll([]byte("123 abc"), -1))36}37import (38func main() {39 p := regexp.MustCompile(`[a-z]+

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1import (2func main() {3 match, _ := regexp.MatchString("p([a-z]+)ch", "peach")4 fmt.Println(match)5 match, _ = regexp.MatchString("p([a-z]+)ch", "peach")6 fmt.Println(match)7 match, _ = regexp.MatchString("p([a-z]+)ch", "peach")8 fmt.Println(match)9 match, _ = regexp.MatchString("p([a-z]+)ch", "peach")10 fmt.Println(match)11 match, _ = regexp.MatchString("p([a-z]+)ch", "peach")12 fmt.Println(match)13 match, _ = regexp.MatchString("p([a-z]+)ch", "peach")14 fmt.Println(match)15 match, _ = regexp.MatchString("p([a-z]+)ch", "peach")16 fmt.Println(match)17 match, _ = regexp.MatchString("p([a-z]+)ch", "peach")18 fmt.Println(match)19 match, _ = regexp.MatchString("p([a-z]+)ch", "peach")20 fmt.Println(match)21}

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1import java.util.regex.*;2class RegExDemo1{3 public static void main(String[] args) {4 Pattern p = Pattern.compile("ab");5 Matcher m = p.matcher("ababbaba");6 boolean b = false;7 while(b = m.find()){8 System.out.println(m.start()+"......"+m.end()+"...."+m.group());9 }10 }11}12class RegExDemo2{13 public static void main(String[] args) {14 String s = "ab";15 String s1 = "ababbaba";16 boolean b = s1.matches(s);17 System.out.println(b);18 }19}20class RegExDemo3{21 public static void main(String[] args) {22 String s = "ab";23 String s1 = "ababbaba";24 String[] s2 = s1.split(s);25 for(String s3 : s2){26 System.out.println(s3);27 }28 }29}30class RegExDemo4{31 public static void main(String[] args) {32 String s = "ab";33 String s1 = "ababbaba";34 String s2 = s1.replaceAll(s,"$");35 System.out.println(s2);36 }37}38class RegExDemo5{39 public static void main(String[] args) {40 String s = "ab";41 String s1 = "ababbaba";42 String s2 = s1.replaceFirst(s,"$");43 System.out.println(s2);44 }45}46class RegExDemo6{47 public static void main(String[] args) {48 String s = "ab";49 String s1 = "ababbaba";50 String s2 = s1.replace(s,"$");51 System.out.println(s2);52 }53}54import java.util.regex.*;55class RegExDemo7{56 public static void main(String[] args) {57 Pattern p = Pattern.compile("ab");

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1import (2func main() {3 re := regexp.MustCompile(pattern)4 fmt.Println(re.MatchString("hello"))5 fmt.Println(re.MatchString("Hello"))6}7import (8func main() {9 re := regexp.MustCompile(pattern)10 fmt.Println(re.FindStringIndex("hello"))11 fmt.Println(re.FindStringIndex("Hello"))12}13import (14func main() {15 re := regexp.MustCompile(pattern)16 fmt.Println(re.FindString("hello"))17 fmt.Println(re.FindString("Hello"))18}19import (20func main() {21 re := regexp.MustCompile(pattern)22 fmt.Println(re.FindAllString("hello world", -1))23 fmt.Println(re.FindAllString("Hello World", -1))24}25import (26func main() {27 re := regexp.MustCompile(pattern)28 fmt.Println(re.FindAllStringIndex("hello world", -1))29 fmt.Println(re.FindAllStringIndex("Hello World", -1))30}31import (32func main() {33 pattern := "([a-z]+) ([a-z]+)"34 re := regexp.MustCompile(pattern)35 fmt.Println(re.FindAllStringSubmatch("hello world", -1))36 fmt.Println(re.FindAllStringSubmatch("Hello World", -1))37}

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1import (2func main() {3 re := regexp.MustCompile("a([a-z]+)e")4}5import (6func main() {7 re := regexp.MustCompile("a([a-z]+)e")8}9import (10func main() {11 re := regexp.MustCompile("a([a-z]+)e")12}13import (14func main() {

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1import "fmt"2import "regexp"3func main() {4 var re = regexp.MustCompile(`\w+`)5 var match = re.Match([]byte(str))6 fmt.Println(match)7}

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1import (2func main() {3 re, err := regexp.Compile("Hello")4 if err != nil {5 panic(err)6 }7 match := re.Match([]byte(str))8 fmt.Println(match)9}103. MatchString() method11func (re *Regexp) MatchString(s string) bool12import (13func main() {14 re, err := regexp.Compile("Hello")15 if err != nil {16 panic(err)17 }18 match := re.MatchString(str)19 fmt.Println(match)20}214. Find() method22func (re *Regexp) Find(b []byte) []byte23import (24func main() {25 re, err := regexp.Compile("World")26 if err != nil {27 panic(err)28 }29 match := re.Find([]byte(str))30 fmt.Println(string(match))31}325. FindString() method33func (re *Regexp) FindString(s string) string

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