chore: direct using structure package decode proxy-name

adapter/provider/parser.go

@@ -1,6 +1,7 @@
 package provider
 
 import (
+	"encoding"
 	"errors"
 	"fmt"
 	"time"
@@ -10,6 +11,8 @@ import (
 	"github.com/metacubex/mihomo/component/resource"
 	C "github.com/metacubex/mihomo/constant"
 	types "github.com/metacubex/mihomo/constant/provider"
+
+	"github.com/dlclark/regexp2"
 )
 
 var (
@@ -28,11 +31,13 @@ type healthCheckSchema struct {
 
 type OverrideProxyNameSchema struct {
 	// matching expression for regex replacement
-	Pattern string `provider:"pattern"`
+	Pattern *regexp2.Regexp `provider:"pattern"`
 	// the new content after regex matching
 	Target string `provider:"target"`
 }
 
+var _ encoding.TextUnmarshaler = (*regexp2.Regexp)(nil) // ensure *regexp2.Regexp can decode direct by structure package
+
 type OverrideSchema struct {
 	TFO              *bool   `provider:"tfo,omitempty"`
 	MPTcp            *bool   `provider:"mptcp,omitempty"`

adapter/provider/provider.go

@@ -404,18 +404,10 @@ func proxiesParseAndFilter(filter string, excludeFilter string, excludeTypeArray
 						name := mapping["name"].(string)
 						mapping["name"] = name + *field.Interface().(*string)
 					case "proxy-name":
-						exprList, ok := field.Interface().([]OverrideProxyNameSchema)
-						if !ok {
-							return nil, fmt.Errorf("can't parse proxy-provider override proxy-name, please see the docs example config")
-						}
 						// Iterate through all naming replacement rules and perform the replacements.
-						for _, expr := range exprList {
+						for _, expr := range override.ProxyName {
 							name := mapping["name"].(string)
-							nameReg, err := regexp2.Compile(expr.Pattern, regexp2.None)
-							if err != nil {
-								return nil, fmt.Errorf("parse proxy name regular expression %q error: %w", expr.Pattern, err)
-							}
-							newName, err := nameReg.Replace(name, expr.Target, 0, -1)
+							newName, err := expr.Pattern.Replace(name, expr.Target, 0, -1)
 							if err != nil {
 								return nil, fmt.Errorf("proxy name replace error: %w", err)
 							}