feat: regexp2

constant/rewrite.go

@@ -1,7 +1,7 @@
 package constant
 
 import (
-	"regexp"
+	regexp "github.com/dlclark/regexp2"
 )
 
 var RewriteTypeMapping = map[string]RewriteType{

rewrite/handler.go

@@ -181,16 +181,21 @@ func matchRewriteRule(url string, isRequest bool) (rr C.Rewrite, sub []string, f
 	rewrites := tunnel.Rewrites()
 	if isRequest {
 		found = rewrites.SearchInRequest(func(r C.Rewrite) bool {
-			sub = r.URLRegx().FindStringSubmatch(url)
+			sub, err := r.URLRegx().FindStringMatch(url)
-			if len(sub) != 0 {
+			if err != nil {
-				rr = r
-				return true
-			}
 				return false
+			}
+
+			rr = r
+			var groups []string
+			for _, fg := range sub.Groups() {
+				groups = append(groups, fg.String())
+			}
+			return true
 		})
 	} else {
 		found = rewrites.SearchInResponse(func(r C.Rewrite) bool {
-			if r.URLRegx().FindString(url) != "" {
+			if b, err := r.URLRegx().MatchString(url); b && err == nil {
 				rr = r
 				return true
 			}

rewrite/parser.go

@@ -1,7 +1,7 @@
 package rewrites
 
 import (
-	"regexp"
+	regexp "github.com/dlclark/regexp2"
 	"strings"
 
 	C "github.com/Dreamacro/clash/constant"
@@ -22,7 +22,7 @@ func ParseRewrite(line string) (C.Rewrite, error) {
 		err error
 	)
 
-	urlRegx, err = regexp.Compile(strings.Trim(url, " "))
+	urlRegx, err = regexp.Compile(strings.Trim(url, " "), regexp.None)
 	if err != nil {
 		return nil, err
 	}
@@ -50,7 +50,7 @@ func ParseRewrite(line string) (C.Rewrite, error) {
 			rulePayload = rs[0]
 			break
 		} else {
-			ruleRegx, err = regexp.Compile(rs[0])
+			ruleRegx, err = regexp.Compile(rs[0], regexp.None)
 			if err != nil {
 				return nil, err
 			}

rewrite/rewrite.go

@@ -2,7 +2,7 @@ package rewrites
 
 import (
 	"errors"
-	"regexp"
+	regexp "github.com/dlclark/regexp2"
 	"strconv"
 	"strings"
 
@@ -61,18 +61,23 @@ func (r *RewriteRule) ReplaceSubPayload(oldData string) string {
 		return oldData
 	}
 
-	sub := r.ruleRegx.FindStringSubmatch(oldData)
+	sub, err := r.ruleRegx.FindStringMatch(oldData)
-	l := len(sub)
+	if err != nil {
-
-	if l == 0 {
 		return oldData
 	}
 
-	for i := 1; i < l; i++ {
+	var groups []string
-		payload = strings.ReplaceAll(payload, "$"+strconv.Itoa(i), sub[i])
+	for _, fg := range sub.Groups() {
+		groups = append(groups, fg.String())
 	}
 
-	return strings.ReplaceAll(oldData, sub[0], payload)
+	l := len(groups)
+
+	for i := 1; i < l; i++ {
+		payload = strings.ReplaceAll(payload, "$"+strconv.Itoa(i), groups[i])
+	}
+
+	return strings.ReplaceAll(oldData, groups[0], payload)
 }
 
 func NewRewriteRule(urlRegx *regexp.Regexp, ruleType C.RewriteType, ruleRegx *regexp.Regexp, rulePayload string) *RewriteRule {