replace std regex with regexp2

adapter/outboundgroup/common.go

@@ -1,13 +1,14 @@
 package outboundgroup
 
 import (
-	"regexp"
 	"strings"
 	"time"
 
 	C "github.com/Dreamacro/clash/constant"
 	"github.com/Dreamacro/clash/constant/provider"
 	"github.com/Dreamacro/clash/tunnel"
+
+	"github.com/dlclark/regexp2"
 )
 
 const (
@@ -30,9 +31,9 @@ func getProvidersProxies(providers []provider.ProxyProvider, touch bool, filter
 	}
 	matchedProxies := []C.Proxy{}
 	if len(filter) > 0 {
-		var filterRegs []*regexp.Regexp
+		var filterRegs []*regexp2.Regexp
 		for _, filter := range strings.Split(filter, "`") {
-			filterReg, err := regexp.Compile(filter)
+			filterReg, err := regexp2.Compile(filter, regexp2.None)
 			if err != nil {
 				continue
 			}
@@ -41,7 +42,8 @@ func getProvidersProxies(providers []provider.ProxyProvider, touch bool, filter
 		proxiesSet := map[string]struct{}{}
 		for _, filterReg := range filterRegs {
 			for _, p := range proxies {
-				if name := p.Name(); filterReg.MatchString(name) {
+				name := p.Name()
+				if mat, _ := filterReg.FindStringMatch(name); mat != nil {
 					if _, ok := proxiesSet[name]; !ok {
 						proxiesSet[name] = struct{}{}
 						matchedProxies = append(matchedProxies, p)

adapter/provider/provider.go

@@ -4,7 +4,6 @@ import (
 	"encoding/json"
 	"errors"
 	"fmt"
-	"regexp"
 	"runtime"
 	"strings"
 	"time"
@@ -14,6 +13,7 @@ import (
 	types "github.com/Dreamacro/clash/constant/provider"
 	"github.com/Dreamacro/clash/tunnel/statistic"
 
+	"github.com/dlclark/regexp2"
 	"gopkg.in/yaml.v3"
 )
 
@@ -110,13 +110,13 @@ func stopProxyProvider(pd *ProxySetProvider) {
 }
 
 func NewProxySetProvider(name string, interval time.Duration, filter string, excludeFilter string, dialerProxy string, vehicle types.Vehicle, hc *HealthCheck) (*ProxySetProvider, error) {
-	excludeFilterReg, err := regexp.Compile(excludeFilter)
+	excludeFilterReg, err := regexp2.Compile(excludeFilter, regexp2.None)
 	if err != nil {
 		return nil, fmt.Errorf("invalid excludeFilter regex: %w", err)
 	}
-	var filterRegs []*regexp.Regexp
+	var filterRegs []*regexp2.Regexp
 	for _, filter := range strings.Split(filter, "`") {
-		filterReg, err := regexp.Compile(filter)
+		filterReg, err := regexp2.Compile(filter, regexp2.None)
 		if err != nil {
 			return nil, fmt.Errorf("invalid filter regex: %w", err)
 		}
@@ -160,11 +160,15 @@ func NewProxySetProvider(name string, interval time.Duration, filter string, exc
 				if !ok {
 					continue
 				}
-				if len(excludeFilter) > 0 && excludeFilterReg.MatchString(name) {
-					continue
+				if len(excludeFilter) > 0 {
+					if mat, _ := excludeFilterReg.FindStringMatch(name); mat != nil {
+						continue
+					}
 				}
-				if !filterReg.MatchString(name) {
-					continue
+				if len(filter) > 0 {
+					if mat, _ := filterReg.FindStringMatch(name); mat == nil {
+						continue
+					}
 				}
 				if _, ok := proxiesSet[name]; ok {
 					continue

go.mod

@@ -5,6 +5,7 @@ go 1.20
 require (
 	github.com/3andne/restls-client-go v0.1.4
 	github.com/aead/chacha20 v0.0.0-20180709150244-8b13a72661da
+	github.com/dlclark/regexp2 v1.10.0
 	github.com/go-chi/chi/v5 v5.0.8
 	github.com/go-chi/cors v1.2.1
 	github.com/go-chi/render v1.0.2

go.sum

@@ -18,6 +18,8 @@ github.com/creack/pty v1.1.9/go.mod h1:oKZEueFk5CKHvIhNR5MUki03XCEU+Q6VDXinZuGJ3
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/dlclark/regexp2 v1.10.0 h1:+/GIL799phkJqYW+3YbOd8LCcbHzT0Pbo8zl70MHsq0=
+github.com/dlclark/regexp2 v1.10.0/go.mod h1:DHkYz0B9wPfa6wondMfaivmHpzrQ3v9q8cnmRbL6yW8=
 github.com/ericlagergren/aegis v0.0.0-20230312195928-b4ce538b56f9 h1:/5RkVc9Rc81XmMyVqawCiDyrBHZbLAZgTTCqou4mwj8=
 github.com/ericlagergren/aegis v0.0.0-20230312195928-b4ce538b56f9/go.mod h1:hkIFzoiIPZYxdFOOLyDho59b7SrDfo+w3h+yWdlg45I=
 github.com/ericlagergren/polyval v0.0.0-20220411101811-e25bc10ba391 h1:8j2RH289RJplhA6WfdaPqzg1MjH2K8wX5e0uhAxrw2g=