Refactor: all plugin subdirectories use option patterncopilot/modify-plugin-files-subdirectories

Apply the same functional options pattern from plugin/singbox to:
- plugin/mihomo (mrs_in.go, mrs_out.go)
- plugin/plaintext (text_in.go, common_in.go, common_out.go, text_out.go, clash_in.go, clash_out.go, json_in.go, surge_in.go, surge_out.go)
- plugin/maxmind (all input/output files)
- plugin/v2ray (dat_in.go, dat_out.go)
- plugin/special (cutter.go, lookup.go, private.go, stdin.go, stdout.go)
- lookup.go and merge.go updated to use new constructors

Co-authored-by: Loyalsoldier <[email protected]>

28 files changed, 1107 insertions, 521 deletions

diff --git a/plugin/maxmind/common_in.go b/plugin/maxmind/common_in.go
index 3d97388c..fd34a735 100644
--- a/plugin/maxmind/common_in.go
+++ b/plugin/maxmind/common_in.go
@@ -3,7 +3,6 @@ package maxmind
 import (
 	"encoding/json"
 	"path/filepath"
-	"strings"
 
 	"github.com/Loyalsoldier/geoip/lib"
 )
@@ -14,7 +13,7 @@ var (
 	defaultIPInfoCountryMMDBFile   = filepath.Join("./", "ipinfo", "country.mmdb")
 )
 
-func newGeoLite2CountryMMDBIn(iType string, iDesc string, action lib.Action, data json.RawMessage) (lib.InputConverter, error) {
+func NewGeoLite2CountryMMDBInFromBytes(iType string, iDesc string, action lib.Action, data json.RawMessage) (lib.InputConverter, error) {
 	var tmp struct {
 		URI        string     `json:"uri"`
 		Want       []string   `json:"wantedList"`
@@ -40,20 +39,10 @@ func newGeoLite2CountryMMDBIn(iType string, iDesc string, action lib.Action, dat
 		}
 	}
 
-	// Filter want list
-	wantList := make(map[string]bool)
-	for _, want := range tmp.Want {
-		if want = strings.ToUpper(strings.TrimSpace(want)); want != "" {
-			wantList[want] = true
-		}
-	}
-
-	return &GeoLite2CountryMMDBIn{
-		Type:        iType,
-		Action:      action,
-		Description: iDesc,
-		URI:         tmp.URI,
-		Want:        wantList,
-		OnlyIPType:  tmp.OnlyIPType,
-	}, nil
+	return NewGeoLite2CountryMMDBIn(
+		iType, iDesc, action,
+		WithURI(tmp.URI),
+		WithInputWantedList(tmp.Want),
+		WithInputOnlyIPType(tmp.OnlyIPType),
+	), nil
 }
diff --git a/plugin/maxmind/common_out.go b/plugin/maxmind/common_out.go
index 21063faa..4ad8b909 100644
--- a/plugin/maxmind/common_out.go
+++ b/plugin/maxmind/common_out.go
@@ -100,7 +100,7 @@ func (d dbipCountry) HasData() bool {
 	return d != zeroDBIPCountry
 }
 
-func newGeoLite2CountryMMDBOut(iType string, iDesc string, action lib.Action, data json.RawMessage) (lib.OutputConverter, error) {
+func NewGeoLite2CountryMMDBOutFromBytes(iType string, iDesc string, action lib.Action, data json.RawMessage) (lib.OutputConverter, error) {
 	var tmp struct {
 		OutputName string     `json:"outputName"`
 		OutputDir  string     `json:"outputDir"`
@@ -118,39 +118,19 @@ func newGeoLite2CountryMMDBOut(iType string, iDesc string, action lib.Action, da
 		}
 	}
 
-	if tmp.OutputName == "" {
-		tmp.OutputName = defaultGeoLite2CountryMMDBOutputName
-	}
-
-	if tmp.OutputDir == "" {
-		switch iType {
-		case TypeGeoLite2CountryMMDBOut:
-			tmp.OutputDir = defaultMaxmindOutputDir
-
-		case TypeDBIPCountryMMDBOut:
-			tmp.OutputDir = defaultDBIPOutputDir
-
-		case TypeIPInfoCountryMMDBOut:
-			tmp.OutputDir = defaultIPInfoOutputDir
-		}
-	}
-
-	return &GeoLite2CountryMMDBOut{
-		Type:        iType,
-		Action:      action,
-		Description: iDesc,
-		OutputName:  tmp.OutputName,
-		OutputDir:   tmp.OutputDir,
-		Want:        tmp.Want,
-		Overwrite:   tmp.Overwrite,
-		Exclude:     tmp.Exclude,
-		OnlyIPType:  tmp.OnlyIPType,
-
-		SourceMMDBURI: tmp.SourceMMDBURI,
-	}, nil
+	return NewGeoLite2CountryMMDBOut(
+		iType, iDesc, action,
+		WithOutputName(tmp.OutputName),
+		WithOutputDir(tmp.OutputDir, iType),
+		WithOutputWantedList(tmp.Want),
+		WithOutputOverwriteList(tmp.Overwrite),
+		WithOutputExcludedList(tmp.Exclude),
+		WithOutputOnlyIPType(tmp.OnlyIPType),
+		WithSourceMMDBURI(tmp.SourceMMDBURI),
+	), nil
 }
 
-func (g *GeoLite2CountryMMDBOut) GetExtraInfo() (map[string]any, error) {
+func (g *geoLite2CountryMMDBOut) GetExtraInfo() (map[string]any, error) {
 	if strings.TrimSpace(g.SourceMMDBURI) == "" {
 		return nil, nil
 	}
diff --git a/plugin/maxmind/dbip_country_mmdb_in.go b/plugin/maxmind/dbip_country_mmdb_in.go
index 304f29e5..713b9626 100644
--- a/plugin/maxmind/dbip_country_mmdb_in.go
+++ b/plugin/maxmind/dbip_country_mmdb_in.go
@@ -18,9 +18,9 @@ const (
 
 func init() {
 	lib.RegisterInputConfigCreator(TypeDBIPCountryMMDBIn, func(action lib.Action, data json.RawMessage) (lib.InputConverter, error) {
-		return newGeoLite2CountryMMDBIn(TypeDBIPCountryMMDBIn, DescDBIPCountryMMDBIn, action, data)
+		return NewGeoLite2CountryMMDBInFromBytes(TypeDBIPCountryMMDBIn, DescDBIPCountryMMDBIn, action, data)
 	})
-	lib.RegisterInputConverter(TypeDBIPCountryMMDBIn, &GeoLite2CountryMMDBIn{
+	lib.RegisterInputConverter(TypeDBIPCountryMMDBIn, &geoLite2CountryMMDBIn{
 		Description: DescDBIPCountryMMDBIn,
 	})
 }
diff --git a/plugin/maxmind/dbip_country_mmdb_out.go b/plugin/maxmind/dbip_country_mmdb_out.go
index 77857d95..73d8c5a8 100644
--- a/plugin/maxmind/dbip_country_mmdb_out.go
+++ b/plugin/maxmind/dbip_country_mmdb_out.go
@@ -18,9 +18,9 @@ const (
 
 func init() {
 	lib.RegisterOutputConfigCreator(TypeDBIPCountryMMDBOut, func(action lib.Action, data json.RawMessage) (lib.OutputConverter, error) {
-		return newGeoLite2CountryMMDBOut(TypeDBIPCountryMMDBOut, DescDBIPCountryMMDBOut, action, data)
+		return NewGeoLite2CountryMMDBOutFromBytes(TypeDBIPCountryMMDBOut, DescDBIPCountryMMDBOut, action, data)
 	})
-	lib.RegisterOutputConverter(TypeDBIPCountryMMDBOut, &GeoLite2CountryMMDBOut{
+	lib.RegisterOutputConverter(TypeDBIPCountryMMDBOut, &geoLite2CountryMMDBOut{
 		Description: DescDBIPCountryMMDBOut,
 	})
 }
diff --git a/plugin/maxmind/ipinfo_country_mmdb_in.go b/plugin/maxmind/ipinfo_country_mmdb_in.go
index 8551e453..c27bafa3 100644
--- a/plugin/maxmind/ipinfo_country_mmdb_in.go
+++ b/plugin/maxmind/ipinfo_country_mmdb_in.go
@@ -18,9 +18,9 @@ const (
 
 func init() {
 	lib.RegisterInputConfigCreator(TypeIPInfoCountryMMDBIn, func(action lib.Action, data json.RawMessage) (lib.InputConverter, error) {
-		return newGeoLite2CountryMMDBIn(TypeIPInfoCountryMMDBIn, DescIPInfoCountryMMDBIn, action, data)
+		return NewGeoLite2CountryMMDBInFromBytes(TypeIPInfoCountryMMDBIn, DescIPInfoCountryMMDBIn, action, data)
 	})
-	lib.RegisterInputConverter(TypeIPInfoCountryMMDBIn, &GeoLite2CountryMMDBIn{
+	lib.RegisterInputConverter(TypeIPInfoCountryMMDBIn, &geoLite2CountryMMDBIn{
 		Description: DescIPInfoCountryMMDBIn,
 	})
 }
diff --git a/plugin/maxmind/ipinfo_country_mmdb_out.go b/plugin/maxmind/ipinfo_country_mmdb_out.go
index bed18af7..e10b4ca6 100644
--- a/plugin/maxmind/ipinfo_country_mmdb_out.go
+++ b/plugin/maxmind/ipinfo_country_mmdb_out.go
@@ -18,9 +18,9 @@ const (
 
 func init() {
 	lib.RegisterOutputConfigCreator(TypeIPInfoCountryMMDBOut, func(action lib.Action, data json.RawMessage) (lib.OutputConverter, error) {
-		return newGeoLite2CountryMMDBOut(TypeIPInfoCountryMMDBOut, DescIPInfoCountryMMDBOut, action, data)
+		return NewGeoLite2CountryMMDBOutFromBytes(TypeIPInfoCountryMMDBOut, DescIPInfoCountryMMDBOut, action, data)
 	})
-	lib.RegisterOutputConverter(TypeIPInfoCountryMMDBOut, &GeoLite2CountryMMDBOut{
+	lib.RegisterOutputConverter(TypeIPInfoCountryMMDBOut, &geoLite2CountryMMDBOut{
 		Description: DescIPInfoCountryMMDBOut,
 	})
 }
diff --git a/plugin/maxmind/maxmind_asn_csv_in.go b/plugin/maxmind/maxmind_asn_csv_in.go
index d924e3f9..43a4ff11 100644
--- a/plugin/maxmind/maxmind_asn_csv_in.go
+++ b/plugin/maxmind/maxmind_asn_csv_in.go
@@ -24,14 +24,64 @@ var (
 
 func init() {
 	lib.RegisterInputConfigCreator(TypeGeoLite2ASNCSVIn, func(action lib.Action, data json.RawMessage) (lib.InputConverter, error) {
-		return newGeoLite2ASNCSVIn(action, data)
+		return NewGeoLite2ASNCSVInFromBytes(action, data)
 	})
-	lib.RegisterInputConverter(TypeGeoLite2ASNCSVIn, &GeoLite2ASNCSVIn{
+	lib.RegisterInputConverter(TypeGeoLite2ASNCSVIn, &geoLite2ASNCSVIn{
 		Description: DescGeoLite2ASNCSVIn,
 	})
 }
 
-func newGeoLite2ASNCSVIn(action lib.Action, data json.RawMessage) (lib.InputConverter, error) {
+type geoLite2ASNCSVIn struct {
+	Type        string
+	Action      lib.Action
+	Description string
+	IPv4File    string
+	IPv6File    string
+	Want        map[string][]string
+	OnlyIPType  lib.IPType
+}
+
+func NewGeoLite2ASNCSVIn(action lib.Action, opts ...lib.InputOption) lib.InputConverter {
+	g := &geoLite2ASNCSVIn{
+		Type:        TypeGeoLite2ASNCSVIn,
+		Action:      action,
+		Description: DescGeoLite2ASNCSVIn,
+	}
+
+	for _, opt := range opts {
+		if opt != nil {
+			opt(g)
+		}
+	}
+
+	return g
+}
+
+func WithASNIPv4File(file string) lib.InputOption {
+	return func(g lib.InputConverter) {
+		g.(*geoLite2ASNCSVIn).IPv4File = strings.TrimSpace(file)
+	}
+}
+
+func WithASNIPv6File(file string) lib.InputOption {
+	return func(g lib.InputConverter) {
+		g.(*geoLite2ASNCSVIn).IPv6File = strings.TrimSpace(file)
+	}
+}
+
+func WithASNWantedList(wantList map[string][]string) lib.InputOption {
+	return func(g lib.InputConverter) {
+		g.(*geoLite2ASNCSVIn).Want = wantList
+	}
+}
+
+func WithASNOnlyIPType(onlyIPType lib.IPType) lib.InputOption {
+	return func(g lib.InputConverter) {
+		g.(*geoLite2ASNCSVIn).OnlyIPType = onlyIPType
+	}
+}
+
+func NewGeoLite2ASNCSVInFromBytes(action lib.Action, data []byte) (lib.InputConverter, error) {
 	var tmp struct {
 		IPv4File   string                 `json:"ipv4"`
 		IPv6File   string                 `json:"ipv6"`
@@ -85,40 +135,28 @@ func newGeoLite2ASNCSVIn(action lib.Action, data json.RawMessage) (lib.InputConv
 		wantList[asn] = []string{"AS" + asn}
 	}
 
-	return &GeoLite2ASNCSVIn{
-		Type:        TypeGeoLite2ASNCSVIn,
-		Action:      action,
-		Description: DescGeoLite2ASNCSVIn,
-		IPv4File:    tmp.IPv4File,
-		IPv6File:    tmp.IPv6File,
-		Want:        wantList,
-		OnlyIPType:  tmp.OnlyIPType,
-	}, nil
-}
-
-type GeoLite2ASNCSVIn struct {
-	Type        string
-	Action      lib.Action
-	Description string
-	IPv4File    string
-	IPv6File    string
-	Want        map[string][]string
-	OnlyIPType  lib.IPType
+	return NewGeoLite2ASNCSVIn(
+		action,
+		WithASNIPv4File(tmp.IPv4File),
+		WithASNIPv6File(tmp.IPv6File),
+		WithASNWantedList(wantList),
+		WithASNOnlyIPType(tmp.OnlyIPType),
+	), nil
 }
 
-func (g *GeoLite2ASNCSVIn) GetType() string {
+func (g *geoLite2ASNCSVIn) GetType() string {
 	return g.Type
 }
 
-func (g *GeoLite2ASNCSVIn) GetAction() lib.Action {
+func (g *geoLite2ASNCSVIn) GetAction() lib.Action {
 	return g.Action
 }
 
-func (g *GeoLite2ASNCSVIn) GetDescription() string {
+func (g *geoLite2ASNCSVIn) GetDescription() string {
 	return g.Description
 }
 
-func (g *GeoLite2ASNCSVIn) Input(container lib.Container) (lib.Container, error) {
+func (g *geoLite2ASNCSVIn) Input(container lib.Container) (lib.Container, error) {
 	entries := make(map[string]*lib.Entry)
 
 	if g.IPv4File != "" {
@@ -157,7 +195,7 @@ func (g *GeoLite2ASNCSVIn) Input(container lib.Container) (lib.Container, error)
 	return container, nil
 }
 
-func (g *GeoLite2ASNCSVIn) process(file string, entries map[string]*lib.Entry) error {
+func (g *geoLite2ASNCSVIn) process(file string, entries map[string]*lib.Entry) error {
 	if entries == nil {
 		entries = make(map[string]*lib.Entry)
 	}
diff --git a/plugin/maxmind/maxmind_country_csv_in.go b/plugin/maxmind/maxmind_country_csv_in.go
index 93d38c37..6b5ba25f 100644
--- a/plugin/maxmind/maxmind_country_csv_in.go
+++ b/plugin/maxmind/maxmind_country_csv_in.go
@@ -25,14 +25,83 @@ var (
 
 func init() {
 	lib.RegisterInputConfigCreator(TypeGeoLite2CountryCSVIn, func(action lib.Action, data json.RawMessage) (lib.InputConverter, error) {
-		return newGeoLite2CountryCSVIn(action, data)
+		return NewGeoLite2CountryCSVInFromBytes(action, data)
 	})
-	lib.RegisterInputConverter(TypeGeoLite2CountryCSVIn, &GeoLite2CountryCSVIn{
+	lib.RegisterInputConverter(TypeGeoLite2CountryCSVIn, &geoLite2CountryCSVIn{
 		Description: DescGeoLite2CountryCSVIn,
 	})
 }
 
-func newGeoLite2CountryCSVIn(action lib.Action, data json.RawMessage) (lib.InputConverter, error) {
+type geoLite2CountryCSVIn struct {
+	Type            string
+	Action          lib.Action
+	Description     string
+	CountryCodeFile string
+	IPv4File        string
+	IPv6File        string
+	Want            map[string]bool
+	OnlyIPType      lib.IPType
+}
+
+func NewGeoLite2CountryCSVIn(action lib.Action, opts ...lib.InputOption) lib.InputConverter {
+	g := &geoLite2CountryCSVIn{
+		Type:        TypeGeoLite2CountryCSVIn,
+		Action:      action,
+		Description: DescGeoLite2CountryCSVIn,
+	}
+
+	for _, opt := range opts {
+		if opt != nil {
+			opt(g)
+		}
+	}
+
+	return g
+}
+
+func WithCountryCodeFile(file string) lib.InputOption {
+	return func(g lib.InputConverter) {
+		file = strings.TrimSpace(file)
+		if file == "" {
+			file = defaultGeoLite2CountryCodeFile
+		}
+
+		g.(*geoLite2CountryCSVIn).CountryCodeFile = file
+	}
+}
+
+func WithCountryIPv4File(file string) lib.InputOption {
+	return func(g lib.InputConverter) {
+		g.(*geoLite2CountryCSVIn).IPv4File = strings.TrimSpace(file)
+	}
+}
+
+func WithCountryIPv6File(file string) lib.InputOption {
+	return func(g lib.InputConverter) {
+		g.(*geoLite2CountryCSVIn).IPv6File = strings.TrimSpace(file)
+	}
+}
+
+func WithCountryWantedList(lists []string) lib.InputOption {
+	return func(g lib.InputConverter) {
+		wantList := make(map[string]bool)
+		for _, want := range lists {
+			if want = strings.ToUpper(strings.TrimSpace(want)); want != "" {
+				wantList[want] = true
+			}
+		}
+
+		g.(*geoLite2CountryCSVIn).Want = wantList
+	}
+}
+
+func WithCountryOnlyIPType(onlyIPType lib.IPType) lib.InputOption {
+	return func(g lib.InputConverter) {
+		g.(*geoLite2CountryCSVIn).OnlyIPType = onlyIPType
+	}
+}
+
+func NewGeoLite2CountryCSVInFromBytes(action lib.Action, data []byte) (lib.InputConverter, error) {
 	var tmp struct {
 		CountryCodeFile string     `json:"country"`
 		IPv4File        string     `json:"ipv4"`
@@ -47,10 +116,6 @@ func newGeoLite2CountryCSVIn(action lib.Action, data json.RawMessage) (lib.Input
 		}
 	}
 
-	if tmp.CountryCodeFile == "" {
-		tmp.CountryCodeFile = defaultGeoLite2CountryCodeFile
-	}
-
 	// When both of IP files are not specified,
 	// it means user wants to use the default ones
 	if tmp.IPv4File == "" && tmp.IPv6File == "" {
@@ -58,50 +123,29 @@ func newGeoLite2CountryCSVIn(action lib.Action, data json.RawMessage) (lib.Input
 		tmp.IPv6File = defaultGeoLite2CountryIPv6File
 	}
 
-	// Filter want list
-	wantList := make(map[string]bool)
-	for _, want := range tmp.Want {
-		if want = strings.ToUpper(strings.TrimSpace(want)); want != "" {
-			wantList[want] = true
-		}
-	}
-
-	return &GeoLite2CountryCSVIn{
-		Type:            TypeGeoLite2CountryCSVIn,
-		Action:          action,
-		Description:     DescGeoLite2CountryCSVIn,
-		CountryCodeFile: tmp.CountryCodeFile,
-		IPv4File:        tmp.IPv4File,
-		IPv6File:        tmp.IPv6File,
-		Want:            wantList,
-		OnlyIPType:      tmp.OnlyIPType,
-	}, nil
-}
-
-type GeoLite2CountryCSVIn struct {
-	Type            string
-	Action          lib.Action
-	Description     string
-	CountryCodeFile string
-	IPv4File        string
-	IPv6File        string
-	Want            map[string]bool
-	OnlyIPType      lib.IPType
+	return NewGeoLite2CountryCSVIn(
+		action,
+		WithCountryCodeFile(tmp.CountryCodeFile),
+		WithCountryIPv4File(tmp.IPv4File),
+		WithCountryIPv6File(tmp.IPv6File),
+		WithCountryWantedList(tmp.Want),
+		WithCountryOnlyIPType(tmp.OnlyIPType),
+	), nil
 }
 
-func (g *GeoLite2CountryCSVIn) GetType() string {
+func (g *geoLite2CountryCSVIn) GetType() string {
 	return g.Type
 }
 
-func (g *GeoLite2CountryCSVIn) GetAction() lib.Action {
+func (g *geoLite2CountryCSVIn) GetAction() lib.Action {
 	return g.Action
 }
 
-func (g *GeoLite2CountryCSVIn) GetDescription() string {
+func (g *geoLite2CountryCSVIn) GetDescription() string {
 	return g.Description
 }
 
-func (g *GeoLite2CountryCSVIn) Input(container lib.Container) (lib.Container, error) {
+func (g *geoLite2CountryCSVIn) Input(container lib.Container) (lib.Container, error) {
 	ccMap, err := g.getCountryCode()
 	if err != nil {
 		return nil, err
@@ -145,7 +189,7 @@ func (g *GeoLite2CountryCSVIn) Input(container lib.Container) (lib.Container, er
 	return container, nil
 }
 
-func (g *GeoLite2CountryCSVIn) getCountryCode() (map[string]string, error) {
+func (g *geoLite2CountryCSVIn) getCountryCode() (map[string]string, error) {
 	var f io.ReadCloser
 	var err error
 	switch {
@@ -192,7 +236,7 @@ func (g *GeoLite2CountryCSVIn) getCountryCode() (map[string]string, error) {
 	return ccMap, nil
 }
 
-func (g *GeoLite2CountryCSVIn) process(file string, ccMap map[string]string, entries map[string]*lib.Entry) error {
+func (g *geoLite2CountryCSVIn) process(file string, ccMap map[string]string, entries map[string]*lib.Entry) error {
 	if len(ccMap) == 0 {
 		return fmt.Errorf("❌ [type %s | action %s] invalid country code data", g.Type, g.Action)
 	}
diff --git a/plugin/maxmind/maxmind_country_mmdb_in.go b/plugin/maxmind/maxmind_country_mmdb_in.go
index 1f6d5386..c3eed5fc 100644
--- a/plugin/maxmind/maxmind_country_mmdb_in.go
+++ b/plugin/maxmind/maxmind_country_mmdb_in.go
@@ -18,14 +18,14 @@ const (
 
 func init() {
 	lib.RegisterInputConfigCreator(TypeGeoLite2CountryMMDBIn, func(action lib.Action, data json.RawMessage) (lib.InputConverter, error) {
-		return newGeoLite2CountryMMDBIn(TypeGeoLite2CountryMMDBIn, DescGeoLite2CountryMMDBIn, action, data)
+		return NewGeoLite2CountryMMDBInFromBytes(TypeGeoLite2CountryMMDBIn, DescGeoLite2CountryMMDBIn, action, data)
 	})
-	lib.RegisterInputConverter(TypeGeoLite2CountryMMDBIn, &GeoLite2CountryMMDBIn{
+	lib.RegisterInputConverter(TypeGeoLite2CountryMMDBIn, &geoLite2CountryMMDBIn{
 		Description: DescGeoLite2CountryMMDBIn,
 	})
 }
 
-type GeoLite2CountryMMDBIn struct {
+type geoLite2CountryMMDBIn struct {
 	Type        string
 	Action      lib.Action
 	Description string
@@ -34,19 +34,60 @@ type GeoLite2CountryMMDBIn struct {
 	OnlyIPType  lib.IPType
 }
 
-func (g *GeoLite2CountryMMDBIn) GetType() string {
+func NewGeoLite2CountryMMDBIn(iType string, iDesc string, action lib.Action, opts ...lib.InputOption) lib.InputConverter {
+	g := &geoLite2CountryMMDBIn{
+		Type:        iType,
+		Action:      action,
+		Description: iDesc,
+	}
+
+	for _, opt := range opts {
+		if opt != nil {
+			opt(g)
+		}
+	}
+
+	return g
+}
+
+func WithURI(uri string) lib.InputOption {
+	return func(g lib.InputConverter) {
+		g.(*geoLite2CountryMMDBIn).URI = strings.TrimSpace(uri)
+	}
+}
+
+func WithInputWantedList(lists []string) lib.InputOption {
+	return func(g lib.InputConverter) {
+		wantList := make(map[string]bool)
+		for _, want := range lists {
+			if want = strings.ToUpper(strings.TrimSpace(want)); want != "" {
+				wantList[want] = true
+			}
+		}
+
+		g.(*geoLite2CountryMMDBIn).Want = wantList
+	}
+}
+
+func WithInputOnlyIPType(onlyIPType lib.IPType) lib.InputOption {
+	return func(g lib.InputConverter) {
+		g.(*geoLite2CountryMMDBIn).OnlyIPType = onlyIPType
+	}
+}
+
+func (g *geoLite2CountryMMDBIn) GetType() string {
 	return g.Type
 }
 
-func (g *GeoLite2CountryMMDBIn) GetAction() lib.Action {
+func (g *geoLite2CountryMMDBIn) GetAction() lib.Action {
 	return g.Action
 }
 
-func (g *GeoLite2CountryMMDBIn) GetDescription() string {
+func (g *geoLite2CountryMMDBIn) GetDescription() string {
 	return g.Description
 }
 
-func (g *GeoLite2CountryMMDBIn) Input(container lib.Container) (lib.Container, error) {
+func (g *geoLite2CountryMMDBIn) Input(container lib.Container) (lib.Container, error) {
 	var content []byte
 	var err error
 	switch {
@@ -89,7 +130,7 @@ func (g *GeoLite2CountryMMDBIn) Input(container lib.Container) (lib.Container, e
 	return container, nil
 }
 
-func (g *GeoLite2CountryMMDBIn) generateEntries(content []byte, entries map[string]*lib.Entry) error {
+func (g *geoLite2CountryMMDBIn) generateEntries(content []byte, entries map[string]*lib.Entry) error {
 	db, err := maxminddb.OpenBytes(content)
 	if err != nil {
 		return err
diff --git a/plugin/maxmind/maxmind_country_mmdb_out.go b/plugin/maxmind/maxmind_country_mmdb_out.go
index fc72e83c..e3613932 100644
--- a/plugin/maxmind/maxmind_country_mmdb_out.go
+++ b/plugin/maxmind/maxmind_country_mmdb_out.go
@@ -22,14 +22,14 @@ const (
 
 func init() {
 	lib.RegisterOutputConfigCreator(TypeGeoLite2CountryMMDBOut, func(action lib.Action, data json.RawMessage) (lib.OutputConverter, error) {
-		return newGeoLite2CountryMMDBOut(TypeGeoLite2CountryMMDBOut, DescGeoLite2CountryMMDBOut, action, data)
+		return NewGeoLite2CountryMMDBOutFromBytes(TypeGeoLite2CountryMMDBOut, DescGeoLite2CountryMMDBOut, action, data)
 	})
-	lib.RegisterOutputConverter(TypeGeoLite2CountryMMDBOut, &GeoLite2CountryMMDBOut{
+	lib.RegisterOutputConverter(TypeGeoLite2CountryMMDBOut, &geoLite2CountryMMDBOut{
 		Description: DescGeoLite2CountryMMDBOut,
 	})
 }
 
-type GeoLite2CountryMMDBOut struct {
+type geoLite2CountryMMDBOut struct {
 	Type        string
 	Action      lib.Action
 	Description string
@@ -43,19 +43,94 @@ type GeoLite2CountryMMDBOut struct {
 	SourceMMDBURI string
 }
 
-func (g *GeoLite2CountryMMDBOut) GetType() string {
+func NewGeoLite2CountryMMDBOut(iType string, iDesc string, action lib.Action, opts ...lib.OutputOption) lib.OutputConverter {
+	g := &geoLite2CountryMMDBOut{
+		Type:        iType,
+		Action:      action,
+		Description: iDesc,
+	}
+
+	for _, opt := range opts {
+		if opt != nil {
+			opt(g)
+		}
+	}
+
+	return g
+}
+
+func WithOutputName(name string) lib.OutputOption {
+	return func(g lib.OutputConverter) {
+		name = strings.TrimSpace(name)
+		if name == "" {
+			name = defaultGeoLite2CountryMMDBOutputName
+		}
+
+		g.(*geoLite2CountryMMDBOut).OutputName = name
+	}
+}
+
+func WithOutputDir(dir string, iType string) lib.OutputOption {
+	return func(g lib.OutputConverter) {
+		dir = strings.TrimSpace(dir)
+		if dir == "" {
+			switch iType {
+			case TypeGeoLite2CountryMMDBOut:
+				dir = defaultMaxmindOutputDir
+			case TypeDBIPCountryMMDBOut:
+				dir = defaultDBIPOutputDir
+			case TypeIPInfoCountryMMDBOut:
+				dir = defaultIPInfoOutputDir
+			}
+		}
+
+		g.(*geoLite2CountryMMDBOut).OutputDir = dir
+	}
+}
+
+func WithOutputWantedList(lists []string) lib.OutputOption {
+	return func(g lib.OutputConverter) {
+		g.(*geoLite2CountryMMDBOut).Want = lists
+	}
+}
+
+func WithOutputOverwriteList(lists []string) lib.OutputOption {
+	return func(g lib.OutputConverter) {
+		g.(*geoLite2CountryMMDBOut).Overwrite = lists
+	}
+}
+
+func WithOutputExcludedList(lists []string) lib.OutputOption {
+	return func(g lib.OutputConverter) {
+		g.(*geoLite2CountryMMDBOut).Exclude = lists
+	}
+}
+
+func WithOutputOnlyIPType(onlyIPType lib.IPType) lib.OutputOption {
+	return func(g lib.OutputConverter) {
+		g.(*geoLite2CountryMMDBOut).OnlyIPType = onlyIPType
+	}
+}
+
+func WithSourceMMDBURI(uri string) lib.OutputOption {
+	return func(g lib.OutputConverter) {
+		g.(*geoLite2CountryMMDBOut).SourceMMDBURI = uri
+	}
+}
+
+func (g *geoLite2CountryMMDBOut) GetType() string {
 	return g.Type
 }
 
-func (g *GeoLite2CountryMMDBOut) GetAction() lib.Action {
+func (g *geoLite2CountryMMDBOut) GetAction() lib.Action {
 	return g.Action
 }
 
-func (g *GeoLite2CountryMMDBOut) GetDescription() string {
+func (g *geoLite2CountryMMDBOut) GetDescription() string {
 	return g.Description
 }
 
-func (g *GeoLite2CountryMMDBOut) Output(container lib.Container) error {
+func (g *geoLite2CountryMMDBOut) Output(container lib.Container) error {
 	dbName := ""
 	dbDesc := ""
 	dbLanguages := []string{"en"}
@@ -119,7 +194,7 @@ func (g *GeoLite2CountryMMDBOut) Output(container lib.Container) error {
 	return nil
 }
 
-func (g *GeoLite2CountryMMDBOut) filterAndSortList(container lib.Container) []string {
+func (g *geoLite2CountryMMDBOut) filterAndSortList(container lib.Container) []string {
 	/*
 		Note: The IPs and/or CIDRs of the latter list will overwrite those of the former one
 		when duplicated data found due to MaxMind mmdb file format constraint.
@@ -175,7 +250,7 @@ func (g *GeoLite2CountryMMDBOut) filterAndSortList(container lib.Container) []st
 	return list
 }
 
-func (g *GeoLite2CountryMMDBOut) marshalData(writer *mmdbwriter.Tree, entry *lib.Entry, extraInfo map[string]any) error {
+func (g *geoLite2CountryMMDBOut) marshalData(writer *mmdbwriter.Tree, entry *lib.Entry, extraInfo map[string]any) error {
 	entryCidr, err := entry.MarshalText(lib.GetIgnoreIPType(g.OnlyIPType))
 	if err != nil {
 		return err
@@ -371,7 +446,7 @@ func (g *GeoLite2CountryMMDBOut) marshalData(writer *mmdbwriter.Tree, entry *lib
 	return nil
 }
 
-func (g *GeoLite2CountryMMDBOut) writeFile(filename string, writer *mmdbwriter.Tree) error {
+func (g *geoLite2CountryMMDBOut) writeFile(filename string, writer *mmdbwriter.Tree) error {
 	if err := os.MkdirAll(g.OutputDir, 0755); err != nil {
 		return err
 	}
diff --git a/plugin/mihomo/mrs_in.go b/plugin/mihomo/mrs_in.go
index cc80f245..e84bcfad 100644
--- a/plugin/mihomo/mrs_in.go
+++ b/plugin/mihomo/mrs_in.go
@@ -6,6 +6,7 @@ import (
 	"encoding/json"
 	"fmt"
 	"io"
+	"log"
 	"net/http"
 	"net/netip"
 	"os"
@@ -27,80 +28,120 @@ const (
 
 func init() {
 	lib.RegisterInputConfigCreator(TypeMRSIn, func(action lib.Action, data json.RawMessage) (lib.InputConverter, error) {
-		return newMRSIn(action, data)
+		return NewMRSInFromBytes(action, data)
 	})
-	lib.RegisterInputConverter(TypeMRSIn, &MRSIn{
+	lib.RegisterInputConverter(TypeMRSIn, &mrs_in{
 		Description: DescMRSIn,
 	})
 }
 
-func newMRSIn(action lib.Action, data json.RawMessage) (lib.InputConverter, error) {
-	var tmp struct {
-		Name       string     `json:"name"`
-		URI        string     `json:"uri"`
-		InputDir   string     `json:"inputDir"`
-		Want       []string   `json:"wantedList"`
-		OnlyIPType lib.IPType `json:"onlyIPType"`
+type mrs_in struct {
+	Type        string
+	Action      lib.Action
+	Description string
+	Name        string
+	URI         string
+	InputDir    string
+	Want        map[string]bool
+	OnlyIPType  lib.IPType
+}
+
+func NewMRSIn(action lib.Action, opts ...lib.InputOption) lib.InputConverter {
+	m := &mrs_in{
+		Type:        TypeMRSIn,
+		Action:      action,
+		Description: DescMRSIn,
 	}
 
-	if len(data) > 0 {
-		if err := json.Unmarshal(data, &tmp); err != nil {
-			return nil, err
+	for _, opt := range opts {
+		if opt != nil {
+			opt(m)
 		}
 	}
 
-	if tmp.Name == "" && tmp.URI == "" && tmp.InputDir == "" {
-		return nil, fmt.Errorf("❌ [type %s | action %s] missing inputDir or name or uri", TypeMRSIn, action)
+	return m
+}
+
+func WithNameAndURI(name, uri string) lib.InputOption {
+	return func(m lib.InputConverter) {
+		name = strings.TrimSpace(name)
+		uri = strings.TrimSpace(uri)
+		if (name == "" || uri == "") && strings.TrimSpace(m.(*mrs_in).InputDir) == "" {
+			log.Fatalf("❌ [type %s | action %s] missing name or uri or inputDir", TypeMRSIn, m.(*mrs_in).Action)
+		}
+
+		m.(*mrs_in).Name = name
+		m.(*mrs_in).URI = uri
 	}
+}
 
-	if (tmp.Name != "" && tmp.URI == "") || (tmp.Name == "" && tmp.URI != "") {
-		return nil, fmt.Errorf("❌ [type %s | action %s] name & uri must be specified together", TypeMRSIn, action)
+func WithInputDir(dir string) lib.InputOption {
+	return func(m lib.InputConverter) {
+		dir = strings.TrimSpace(dir)
+		if dir == "" && (strings.TrimSpace(m.(*mrs_in).Name) == "" || strings.TrimSpace(m.(*mrs_in).URI) == "") {
+			log.Fatalf("❌ [type %s | action %s] missing name or uri or inputDir", TypeMRSIn, m.(*mrs_in).Action)
+		}
+
+		m.(*mrs_in).InputDir = dir
 	}
+}
 
-	// Filter want list
-	wantList := make(map[string]bool)
-	for _, want := range tmp.Want {
-		if want = strings.ToUpper(strings.TrimSpace(want)); want != "" {
-			wantList[want] = true
+func WithInputWantedList(lists []string) lib.InputOption {
+	return func(m lib.InputConverter) {
+		wantList := make(map[string]bool)
+		for _, want := range lists {
+			if want = strings.ToUpper(strings.TrimSpace(want)); want != "" {
+				wantList[want] = true
+			}
 		}
+
+		m.(*mrs_in).Want = wantList
 	}
+}
 
-	return &MRSIn{
-		Type:        TypeMRSIn,
-		Action:      action,
-		Description: DescMRSIn,
-		Name:        tmp.Name,
-		URI:         tmp.URI,
-		InputDir:    tmp.InputDir,
-		Want:        wantList,
-		OnlyIPType:  tmp.OnlyIPType,
-	}, nil
+func WithInputOnlyIPType(onlyIPType lib.IPType) lib.InputOption {
+	return func(m lib.InputConverter) {
+		m.(*mrs_in).OnlyIPType = onlyIPType
+	}
 }
 
-type MRSIn struct {
-	Type        string
-	Action      lib.Action
-	Description string
-	Name        string
-	URI         string
-	InputDir    string
-	Want        map[string]bool
-	OnlyIPType  lib.IPType
+func NewMRSInFromBytes(action lib.Action, data []byte) (lib.InputConverter, error) {
+	var tmp struct {
+		Name       string     `json:"name"`
+		URI        string     `json:"uri"`
+		InputDir   string     `json:"inputDir"`
+		Want       []string   `json:"wantedList"`
+		OnlyIPType lib.IPType `json:"onlyIPType"`
+	}
+
+	if len(data) > 0 {
+		if err := json.Unmarshal(data, &tmp); err != nil {
+			return nil, err
+		}
+	}
+
+	return NewMRSIn(
+		action,
+		WithNameAndURI(tmp.Name, tmp.URI),
+		WithInputDir(tmp.InputDir),
+		WithInputWantedList(tmp.Want),
+		WithInputOnlyIPType(tmp.OnlyIPType),
+	), nil
 }
 
-func (m *MRSIn) GetType() string {
+func (m *mrs_in) GetType() string {
 	return m.Type
 }
 
-func (m *MRSIn) GetAction() lib.Action {
+func (m *mrs_in) GetAction() lib.Action {
 	return m.Action
 }
 
-func (m *MRSIn) GetDescription() string {
+func (m *mrs_in) GetDescription() string {
 	return m.Description
 }
 
-func (m *MRSIn) Input(container lib.Container) (lib.Container, error) {
+func (m *mrs_in) Input(container lib.Container) (lib.Container, error) {
 	entries := make(map[string]*lib.Entry)
 	var err error
 
@@ -146,7 +187,7 @@ func (m *MRSIn) Input(container lib.Container) (lib.Container, error) {
 	return container, nil
 }
 
-func (m *MRSIn) walkDir(dir string, entries map[string]*lib.Entry) error {
+func (m *mrs_in) walkDir(dir string, entries map[string]*lib.Entry) error {
 	err := filepath.Walk(dir, func(path string, info os.FileInfo, err error) error {
 		if err != nil {
 			return err
@@ -165,7 +206,7 @@ func (m *MRSIn) walkDir(dir string, entries map[string]*lib.Entry) error {
 	return err
 }
 
-func (m *MRSIn) walkLocalFile(path, name string, entries map[string]*lib.Entry) error {
+func (m *mrs_in) walkLocalFile(path, name string, entries map[string]*lib.Entry) error {
 	entryName := ""
 	name = strings.TrimSpace(name)
 	if name != "" {
@@ -203,7 +244,7 @@ func (m *MRSIn) walkLocalFile(path, name string, entries map[string]*lib.Entry)
 	return nil
 }
 
-func (m *MRSIn) walkRemoteFile(url, name string, entries map[string]*lib.Entry) error {
+func (m *mrs_in) walkRemoteFile(url, name string, entries map[string]*lib.Entry) error {
 	resp, err := http.Get(url)
 	if err != nil {
 		return err
@@ -221,7 +262,7 @@ func (m *MRSIn) walkRemoteFile(url, name string, entries map[string]*lib.Entry)
 	return nil
 }
 
-func (m *MRSIn) generateEntries(name string, reader io.Reader, entries map[string]*lib.Entry) error {
+func (m *mrs_in) generateEntries(name string, reader io.Reader, entries map[string]*lib.Entry) error {
 	name = strings.ToUpper(name)
 
 	if len(m.Want) > 0 && !m.Want[name] {
@@ -247,7 +288,7 @@ func (m *MRSIn) generateEntries(name string, reader io.Reader, entries map[strin
 	return nil
 }
 
-func (m *MRSIn) parseMRS(data []byte, entry *lib.Entry) error {
+func (m *mrs_in) parseMRS(data []byte, entry *lib.Entry) error {
 	reader, err := zstd.NewReader(bytes.NewReader(data))
 	if err != nil {
 		return err
diff --git a/plugin/mihomo/mrs_out.go b/plugin/mihomo/mrs_out.go
index e8d65e9f..c8437dcc 100644
--- a/plugin/mihomo/mrs_out.go
+++ b/plugin/mihomo/mrs_out.go
@@ -27,14 +27,69 @@ var (
 
 func init() {
 	lib.RegisterOutputConfigCreator(TypeMRSOut, func(action lib.Action, data json.RawMessage) (lib.OutputConverter, error) {
-		return newMRSOut(action, data)
+		return NewMRSOutFromBytes(action, data)
 	})
-	lib.RegisterOutputConverter(TypeMRSOut, &MRSOut{
+	lib.RegisterOutputConverter(TypeMRSOut, &mrs_out{
 		Description: DescMRSOut,
 	})
 }
 
-func newMRSOut(action lib.Action, data json.RawMessage) (lib.OutputConverter, error) {
+type mrs_out struct {
+	Type        string
+	Action      lib.Action
+	Description string
+	OutputDir   string
+	Want        []string
+	Exclude     []string
+	OnlyIPType  lib.IPType
+}
+
+func NewMRSOut(action lib.Action, opts ...lib.OutputOption) lib.OutputConverter {
+	m := &mrs_out{
+		Type:        TypeMRSOut,
+		Action:      action,
+		Description: DescMRSOut,
+	}
+
+	for _, opt := range opts {
+		if opt != nil {
+			opt(m)
+		}
+	}
+
+	return m
+}
+
+func WithOutputDir(dir string) lib.OutputOption {
+	return func(m lib.OutputConverter) {
+		dir = strings.TrimSpace(dir)
+		if dir == "" {
+			dir = defaultOutputDir
+		}
+
+		m.(*mrs_out).OutputDir = dir
+	}
+}
+
+func WithOutputWantedList(lists []string) lib.OutputOption {
+	return func(m lib.OutputConverter) {
+		m.(*mrs_out).Want = lists
+	}
+}
+
+func WithOutputExcludedList(lists []string) lib.OutputOption {
+	return func(m lib.OutputConverter) {
+		m.(*mrs_out).Exclude = lists
+	}
+}
+
+func WithOutputOnlyIPType(onlyIPType lib.IPType) lib.OutputOption {
+	return func(m lib.OutputConverter) {
+		m.(*mrs_out).OnlyIPType = onlyIPType
+	}
+}
+
+func NewMRSOutFromBytes(action lib.Action, data []byte) (lib.OutputConverter, error) {
 	var tmp struct {
 		OutputDir  string     `json:"outputDir"`
 		Want       []string   `json:"wantedList"`
@@ -48,44 +103,28 @@ func newMRSOut(action lib.Action, data json.RawMessage) (lib.OutputConverter, er
 		}
 	}
 
-	if tmp.OutputDir == "" {
-		tmp.OutputDir = defaultOutputDir
-	}
-
-	return &MRSOut{
-		Type:        TypeMRSOut,
-		Action:      action,
-		Description: DescMRSOut,
-		OutputDir:   tmp.OutputDir,
-		Want:        tmp.Want,
-		Exclude:     tmp.Exclude,
-		OnlyIPType:  tmp.OnlyIPType,
-	}, nil
-}
-
-type MRSOut struct {
-	Type        string
-	Action      lib.Action
-	Description string
-	OutputDir   string
-	Want        []string
-	Exclude     []string
-	OnlyIPType  lib.IPType
+	return NewMRSOut(
+		action,
+		WithOutputDir(tmp.OutputDir),
+		WithOutputWantedList(tmp.Want),
+		WithOutputExcludedList(tmp.Exclude),
+		WithOutputOnlyIPType(tmp.OnlyIPType),
+	), nil
 }
 
-func (m *MRSOut) GetType() string {
+func (m *mrs_out) GetType() string {
 	return m.Type
 }
 
-func (m *MRSOut) GetAction() lib.Action {
+func (m *mrs_out) GetAction() lib.Action {
 	return m.Action
 }
 
-func (m *MRSOut) GetDescription() string {
+func (m *mrs_out) GetDescription() string {
 	return m.Description
 }
 
-func (m *MRSOut) Output(container lib.Container) error {
+func (m *mrs_out) Output(container lib.Container) error {
 	for _, name := range m.filterAndSortList(container) {
 		entry, found := container.GetEntry(name)
 		if !found {
@@ -101,7 +140,7 @@ func (m *MRSOut) Output(container lib.Container) error {
 	return nil
 }
 
-func (m *MRSOut) filterAndSortList(container lib.Container) []string {
+func (m *mrs_out) filterAndSortList(container lib.Container) []string {
 	excludeMap := make(map[string]bool)
 	for _, exclude := range m.Exclude {
 		if exclude = strings.ToUpper(strings.TrimSpace(exclude)); exclude != "" {
@@ -137,7 +176,7 @@ func (m *MRSOut) filterAndSortList(container lib.Container) []string {
 	return list
 }
 
-func (m *MRSOut) generate(entry *lib.Entry) error {
+func (m *mrs_out) generate(entry *lib.Entry) error {
 	ipRanges, err := entry.MarshalIPRange(lib.GetIgnoreIPType(m.OnlyIPType))
 	if err != nil {
 		return err
@@ -155,7 +194,7 @@ func (m *MRSOut) generate(entry *lib.Entry) error {
 	return nil
 }
 
-func (m *MRSOut) writeFile(filename string, ipRanges []netipx.IPRange) error {
+func (m *mrs_out) writeFile(filename string, ipRanges []netipx.IPRange) error {
 	if err := os.MkdirAll(m.OutputDir, 0755); err != nil {
 		return err
 	}
@@ -176,7 +215,7 @@ func (m *MRSOut) writeFile(filename string, ipRanges []netipx.IPRange) error {
 	return nil
 }
 
-func (m *MRSOut) convertToMrs(ipRanges []netipx.IPRange, w io.Writer) (err error) {
+func (m *mrs_out) convertToMrs(ipRanges []netipx.IPRange, w io.Writer) (err error) {
 	encoder, err := zstd.NewWriter(w)
 	if err != nil {
 		return err
diff --git a/plugin/plaintext/clash_in.go b/plugin/plaintext/clash_in.go
index be77cc62..a714b20d 100644
--- a/plugin/plaintext/clash_in.go
+++ b/plugin/plaintext/clash_in.go
@@ -21,16 +21,16 @@ const (
 
 func init() {
 	lib.RegisterInputConfigCreator(TypeClashRuleSetClassicalIn, func(action lib.Action, data json.RawMessage) (lib.InputConverter, error) {
-		return newTextIn(TypeClashRuleSetClassicalIn, DescClashRuleSetClassicalIn, action, data)
+		return NewTextInFromBytes(TypeClashRuleSetClassicalIn, DescClashRuleSetClassicalIn, action, data)
 	})
-	lib.RegisterInputConverter(TypeClashRuleSetClassicalIn, &TextIn{
+	lib.RegisterInputConverter(TypeClashRuleSetClassicalIn, &text_in{
 		Description: DescClashRuleSetClassicalIn,
 	})
 
 	lib.RegisterInputConfigCreator(TypeClashRuleSetIPCIDRIn, func(action lib.Action, data json.RawMessage) (lib.InputConverter, error) {
-		return newTextIn(TypeClashRuleSetIPCIDRIn, DescClashRuleSetIPCIDRIn, action, data)
+		return NewTextInFromBytes(TypeClashRuleSetIPCIDRIn, DescClashRuleSetIPCIDRIn, action, data)
 	})
-	lib.RegisterInputConverter(TypeClashRuleSetIPCIDRIn, &TextIn{
+	lib.RegisterInputConverter(TypeClashRuleSetIPCIDRIn, &text_in{
 		Description: DescClashRuleSetIPCIDRIn,
 	})
 }
diff --git a/plugin/plaintext/clash_out.go b/plugin/plaintext/clash_out.go
index e7a97f1b..9e7644d6 100644
--- a/plugin/plaintext/clash_out.go
+++ b/plugin/plaintext/clash_out.go
@@ -21,16 +21,16 @@ const (
 
 func init() {
 	lib.RegisterOutputConfigCreator(TypeClashRuleSetClassicalOut, func(action lib.Action, data json.RawMessage) (lib.OutputConverter, error) {
-		return newTextOut(TypeClashRuleSetClassicalOut, DescClashRuleSetClassicalOut, action, data)
+		return NewTextOutFromBytes(TypeClashRuleSetClassicalOut, DescClashRuleSetClassicalOut, action, data)
 	})
-	lib.RegisterOutputConverter(TypeClashRuleSetClassicalOut, &TextOut{
+	lib.RegisterOutputConverter(TypeClashRuleSetClassicalOut, &text_out{
 		Description: DescClashRuleSetClassicalOut,
 	})
 
 	lib.RegisterOutputConfigCreator(TypeClashRuleSetIPCIDROut, func(action lib.Action, data json.RawMessage) (lib.OutputConverter, error) {
-		return newTextOut(TypeClashRuleSetIPCIDROut, DescClashRuleSetIPCIDROut, action, data)
+		return NewTextOutFromBytes(TypeClashRuleSetIPCIDROut, DescClashRuleSetIPCIDROut, action, data)
 	})
-	lib.RegisterOutputConverter(TypeClashRuleSetIPCIDROut, &TextOut{
+	lib.RegisterOutputConverter(TypeClashRuleSetIPCIDROut, &text_out{
 		Description: DescClashRuleSetIPCIDROut,
 	})
 }
diff --git a/plugin/plaintext/common_in.go b/plugin/plaintext/common_in.go
index f8253519..44f7168f 100644
--- a/plugin/plaintext/common_in.go
+++ b/plugin/plaintext/common_in.go
@@ -11,7 +11,7 @@ import (
 	"gopkg.in/yaml.v2"
 )
 
-type TextIn struct {
+type text_in struct {
 	Type        string
 	Action      lib.Action
 	Description string
@@ -27,7 +27,7 @@ type TextIn struct {
 	RemoveSuffixesInLine []string
 }
 
-func (t *TextIn) scanFile(reader io.Reader, entry *lib.Entry) error {
+func (t *text_in) scanFile(reader io.Reader, entry *lib.Entry) error {
 	var err error
 	switch t.Type {
 	case TypeTextIn:
@@ -47,7 +47,7 @@ func (t *TextIn) scanFile(reader io.Reader, entry *lib.Entry) error {
 	return err
 }
 
-func (t *TextIn) scanFileForTextIn(reader io.Reader, entry *lib.Entry) error {
+func (t *text_in) scanFileForTextIn(reader io.Reader, entry *lib.Entry) error {
 	scanner := bufio.NewScanner(reader)
 	for scanner.Scan() {
 		line := scanner.Text()
@@ -83,7 +83,7 @@ func (t *TextIn) scanFileForTextIn(reader io.Reader, entry *lib.Entry) error {
 	return nil
 }
 
-func (t *TextIn) readClashRuleSetYAMLFile(reader io.Reader) ([]string, error) {
+func (t *text_in) readClashRuleSetYAMLFile(reader io.Reader) ([]string, error) {
 	var payload struct {
 		Payload []string `yaml:"payload"`
 	}
@@ -100,7 +100,7 @@ func (t *TextIn) readClashRuleSetYAMLFile(reader io.Reader) ([]string, error) {
 	return payload.Payload, nil
 }
 
-func (t *TextIn) scanFileForClashIPCIDRRuleSetIn(reader io.Reader, entry *lib.Entry) error {
+func (t *text_in) scanFileForClashIPCIDRRuleSetIn(reader io.Reader, entry *lib.Entry) error {
 	payload, err := t.readClashRuleSetYAMLFile(reader)
 	if err != nil {
 		return err
@@ -119,7 +119,7 @@ func (t *TextIn) scanFileForClashIPCIDRRuleSetIn(reader io.Reader, entry *lib.En
 	return nil
 }
 
-func (t *TextIn) scanFileForClashClassicalRuleSetIn(reader io.Reader, entry *lib.Entry) error {
+func (t *text_in) scanFileForClashClassicalRuleSetIn(reader io.Reader, entry *lib.Entry) error {
 	payload, err := t.readClashRuleSetYAMLFile(reader)
 	if err != nil {
 		return err
@@ -154,7 +154,7 @@ func (t *TextIn) scanFileForClashClassicalRuleSetIn(reader io.Reader, entry *lib
 	return nil
 }
 
-func (t *TextIn) scanFileForSurgeRuleSetIn(reader io.Reader, entry *lib.Entry) error {
+func (t *text_in) scanFileForSurgeRuleSetIn(reader io.Reader, entry *lib.Entry) error {
 	scanner := bufio.NewScanner(reader)
 	for scanner.Scan() {
 		line := scanner.Text()
@@ -193,7 +193,7 @@ func (t *TextIn) scanFileForSurgeRuleSetIn(reader io.Reader, entry *lib.Entry) e
 	return nil
 }
 
-func (t *TextIn) scanFileForJSONIn(reader io.Reader, entry *lib.Entry) error {
+func (t *text_in) scanFileForJSONIn(reader io.Reader, entry *lib.Entry) error {
 	data, err := io.ReadAll(reader)
 	if err != nil {
 		return err
@@ -217,7 +217,7 @@ func (t *TextIn) scanFileForJSONIn(reader io.Reader, entry *lib.Entry) error {
 	return nil
 }
 
-func (t *TextIn) processJSONResult(result gjson.Result, entry *lib.Entry) error {
+func (t *text_in) processJSONResult(result gjson.Result, entry *lib.Entry) error {
 	switch {
 	case !result.Exists():
 		return fmt.Errorf("invaild IP address or CIDR (value not exist), please check your specified JSON path or JSON source")
diff --git a/plugin/plaintext/common_out.go b/plugin/plaintext/common_out.go
index cc7ba41e..e508fa9d 100644
--- a/plugin/plaintext/common_out.go
+++ b/plugin/plaintext/common_out.go
@@ -7,6 +7,7 @@ import (
 	"net"
 	"os"
 	"path/filepath"
+	"strings"
 
 	"github.com/Loyalsoldier/geoip/lib"
 )
@@ -18,7 +19,7 @@ var (
 	defaultOutputDirForSurgeRuleSetOut          = filepath.Join("./", "output", "surge")
 )
 
-type TextOut struct {
+type text_out struct {
 	Type        string
 	Action      lib.Action
 	Description string
@@ -32,7 +33,84 @@ type TextOut struct {
 	AddSuffixInLine string
 }
 
-func newTextOut(iType string, iDesc string, action lib.Action, data json.RawMessage) (lib.OutputConverter, error) {
+func NewTextOut(iType string, iDesc string, action lib.Action, opts ...lib.OutputOption) lib.OutputConverter {
+	t := &text_out{
+		Type:        iType,
+		Action:      action,
+		Description: iDesc,
+	}
+
+	for _, opt := range opts {
+		if opt != nil {
+			opt(t)
+		}
+	}
+
+	return t
+}
+
+func WithOutputDir(dir string, iType string) lib.OutputOption {
+	return func(t lib.OutputConverter) {
+		dir = strings.TrimSpace(dir)
+		if dir == "" {
+			switch iType {
+			case TypeTextOut:
+				dir = defaultOutputDirForTextOut
+			case TypeClashRuleSetClassicalOut:
+				dir = defaultOutputDirForClashRuleSetClassicalOut
+			case TypeClashRuleSetIPCIDROut:
+				dir = defaultOutputDirForClashRuleSetIPCIDROut
+			case TypeSurgeRuleSetOut:
+				dir = defaultOutputDirForSurgeRuleSetOut
+			}
+		}
+
+		t.(*text_out).OutputDir = dir
+	}
+}
+
+func WithOutputExtension(ext string) lib.OutputOption {
+	return func(t lib.OutputConverter) {
+		ext = strings.TrimSpace(ext)
+		if ext == "" {
+			ext = ".txt"
+		}
+
+		t.(*text_out).OutputExt = ext
+	}
+}
+
+func WithOutputWantedList(lists []string) lib.OutputOption {
+	return func(t lib.OutputConverter) {
+		t.(*text_out).Want = lists
+	}
+}
+
+func WithOutputExcludedList(lists []string) lib.OutputOption {
+	return func(t lib.OutputConverter) {
+		t.(*text_out).Exclude = lists
+	}
+}
+
+func WithOutputOnlyIPType(onlyIPType lib.IPType) lib.OutputOption {
+	return func(t lib.OutputConverter) {
+		t.(*text_out).OnlyIPType = onlyIPType
+	}
+}
+
+func WithAddPrefixInLine(prefix string) lib.OutputOption {
+	return func(t lib.OutputConverter) {
+		t.(*text_out).AddPrefixInLine = prefix
+	}
+}
+
+func WithAddSuffixInLine(suffix string) lib.OutputOption {
+	return func(t lib.OutputConverter) {
+		t.(*text_out).AddSuffixInLine = suffix
+	}
+}
+
+func NewTextOutFromBytes(iType string, iDesc string, action lib.Action, data []byte) (lib.OutputConverter, error) {
 	var tmp struct {
 		OutputDir  string     `json:"outputDir"`
 		OutputExt  string     `json:"outputExtension"`
@@ -50,39 +128,19 @@ func newTextOut(iType string, iDesc string, action lib.Action, data json.RawMess
 		}
 	}
 
-	if tmp.OutputDir == "" {
-		switch iType {
-		case TypeTextOut:
-			tmp.OutputDir = defaultOutputDirForTextOut
-		case TypeClashRuleSetClassicalOut:
-			tmp.OutputDir = defaultOutputDirForClashRuleSetClassicalOut
-		case TypeClashRuleSetIPCIDROut:
-			tmp.OutputDir = defaultOutputDirForClashRuleSetIPCIDROut
-		case TypeSurgeRuleSetOut:
-			tmp.OutputDir = defaultOutputDirForSurgeRuleSetOut
-		}
-	}
-
-	if tmp.OutputExt == "" {
-		tmp.OutputExt = ".txt"
-	}
-
-	return &TextOut{
-		Type:        iType,
-		Action:      action,
-		Description: iDesc,
-		OutputDir:   tmp.OutputDir,
-		OutputExt:   tmp.OutputExt,
-		Want:        tmp.Want,
-		Exclude:     tmp.Exclude,
-		OnlyIPType:  tmp.OnlyIPType,
-
-		AddPrefixInLine: tmp.AddPrefixInLine,
-		AddSuffixInLine: tmp.AddSuffixInLine,
-	}, nil
+	return NewTextOut(
+		iType, iDesc, action,
+		WithOutputDir(tmp.OutputDir, iType),
+		WithOutputExtension(tmp.OutputExt),
+		WithOutputWantedList(tmp.Want),
+		WithOutputExcludedList(tmp.Exclude),
+		WithOutputOnlyIPType(tmp.OnlyIPType),
+		WithAddPrefixInLine(tmp.AddPrefixInLine),
+		WithAddSuffixInLine(tmp.AddSuffixInLine),
+	), nil
 }
 
-func (t *TextOut) marshalBytes(entry *lib.Entry) ([]byte, error) {
+func (t *text_out) marshalBytes(entry *lib.Entry) ([]byte, error) {
 	entryCidr, err := entry.MarshalText(lib.GetIgnoreIPType(t.OnlyIPType))
 	if err != nil {
 		return nil, err
@@ -108,7 +166,7 @@ func (t *TextOut) marshalBytes(entry *lib.Entry) ([]byte, error) {
 	return buf.Bytes(), nil
 }
 
-func (t *TextOut) marshalBytesForTextOut(buf *bytes.Buffer, entryCidr []string) error {
+func (t *text_out) marshalBytesForTextOut(buf *bytes.Buffer, entryCidr []string) error {
 	for _, cidr := range entryCidr {
 		if t.AddPrefixInLine != "" {
 			buf.WriteString(t.AddPrefixInLine)
@@ -122,7 +180,7 @@ func (t *TextOut) marshalBytesForTextOut(buf *bytes.Buffer, entryCidr []string)
 	return nil
 }
 
-func (t *TextOut) marshalBytesForClashRuleSetClassicalOut(buf *bytes.Buffer, entryCidr []string) error {
+func (t *text_out) marshalBytesForClashRuleSetClassicalOut(buf *bytes.Buffer, entryCidr []string) error {
 	buf.WriteString("payload:\n")
 	for _, cidr := range entryCidr {
 		ip, _, err := net.ParseCIDR(cidr)
@@ -141,7 +199,7 @@ func (t *TextOut) marshalBytesForClashRuleSetClassicalOut(buf *bytes.Buffer, ent
 	return nil
 }
 
-func (t *TextOut) marshalBytesForClashRuleSetIPCIDROut(buf *bytes.Buffer, entryCidr []string) error {
+func (t *text_out) marshalBytesForClashRuleSetIPCIDROut(buf *bytes.Buffer, entryCidr []string) error {
 	buf.WriteString("payload:\n")
 	for _, cidr := range entryCidr {
 		buf.WriteString("  - '")
@@ -152,7 +210,7 @@ func (t *TextOut) marshalBytesForClashRuleSetIPCIDROut(buf *bytes.Buffer, entryC
 	return nil
 }
 
-func (t *TextOut) marshalBytesForSurgeRuleSetOut(buf *bytes.Buffer, entryCidr []string) error {
+func (t *text_out) marshalBytesForSurgeRuleSetOut(buf *bytes.Buffer, entryCidr []string) error {
 	for _, cidr := range entryCidr {
 		ip, _, err := net.ParseCIDR(cidr)
 		if err != nil {
@@ -173,7 +231,7 @@ func (t *TextOut) marshalBytesForSurgeRuleSetOut(buf *bytes.Buffer, entryCidr []
 	return nil
 }
 
-func (t *TextOut) writeFile(filename string, data []byte) error {
+func (t *text_out) writeFile(filename string, data []byte) error {
 	if err := os.MkdirAll(t.OutputDir, 0755); err != nil {
 		return err
 	}
diff --git a/plugin/plaintext/json_in.go b/plugin/plaintext/json_in.go
index a4643609..221f5a0e 100644
--- a/plugin/plaintext/json_in.go
+++ b/plugin/plaintext/json_in.go
@@ -13,10 +13,10 @@ const (
 
 func init() {
 	lib.RegisterInputConfigCreator(TypeJSONIn, func(action lib.Action, data json.RawMessage) (lib.InputConverter, error) {
-		return newTextIn(TypeJSONIn, DescJSONIn, action, data)
+		return NewTextInFromBytes(TypeJSONIn, DescJSONIn, action, data)
 	})
 
-	lib.RegisterInputConverter(TypeJSONIn, &TextIn{
+	lib.RegisterInputConverter(TypeJSONIn, &text_in{
 		Description: DescJSONIn,
 	})
 }
diff --git a/plugin/plaintext/surge_in.go b/plugin/plaintext/surge_in.go
index 7621d0a1..32c99f2e 100644
--- a/plugin/plaintext/surge_in.go
+++ b/plugin/plaintext/surge_in.go
@@ -18,9 +18,9 @@ const (
 
 func init() {
 	lib.RegisterInputConfigCreator(TypeSurgeRuleSetIn, func(action lib.Action, data json.RawMessage) (lib.InputConverter, error) {
-		return newTextIn(TypeSurgeRuleSetIn, DescSurgeRuleSetIn, action, data)
+		return NewTextInFromBytes(TypeSurgeRuleSetIn, DescSurgeRuleSetIn, action, data)
 	})
-	lib.RegisterInputConverter(TypeSurgeRuleSetIn, &TextIn{
+	lib.RegisterInputConverter(TypeSurgeRuleSetIn, &text_in{
 		Description: DescSurgeRuleSetIn,
 	})
 }
diff --git a/plugin/plaintext/surge_out.go b/plugin/plaintext/surge_out.go
index 8fe62fb4..30aa2332 100644
--- a/plugin/plaintext/surge_out.go
+++ b/plugin/plaintext/surge_out.go
@@ -18,9 +18,9 @@ const (
 
 func init() {
 	lib.RegisterOutputConfigCreator(TypeSurgeRuleSetOut, func(action lib.Action, data json.RawMessage) (lib.OutputConverter, error) {
-		return newTextOut(TypeSurgeRuleSetOut, DescSurgeRuleSetOut, action, data)
+		return NewTextOutFromBytes(TypeSurgeRuleSetOut, DescSurgeRuleSetOut, action, data)
 	})
-	lib.RegisterOutputConverter(TypeSurgeRuleSetOut, &TextOut{
+	lib.RegisterOutputConverter(TypeSurgeRuleSetOut, &text_out{
 		Description: DescSurgeRuleSetOut,
 	})
 }
diff --git a/plugin/plaintext/text_in.go b/plugin/plaintext/text_in.go
index a75b1b12..40572e2e 100644
--- a/plugin/plaintext/text_in.go
+++ b/plugin/plaintext/text_in.go
@@ -19,14 +19,86 @@ const (
 
 func init() {
 	lib.RegisterInputConfigCreator(TypeTextIn, func(action lib.Action, data json.RawMessage) (lib.InputConverter, error) {
-		return newTextIn(TypeTextIn, DescTextIn, action, data)
+		return NewTextInFromBytes(TypeTextIn, DescTextIn, action, data)
 	})
-	lib.RegisterInputConverter(TypeTextIn, &TextIn{
+	lib.RegisterInputConverter(TypeTextIn, &text_in{
 		Description: DescTextIn,
 	})
 }
 
-func newTextIn(iType string, iDesc string, action lib.Action, data json.RawMessage) (lib.InputConverter, error) {
+func NewTextIn(iType string, iDesc string, action lib.Action, opts ...lib.InputOption) lib.InputConverter {
+	t := &text_in{
+		Type:        iType,
+		Action:      action,
+		Description: iDesc,
+	}
+
+	for _, opt := range opts {
+		if opt != nil {
+			opt(t)
+		}
+	}
+
+	return t
+}
+
+func WithNameAndURI(name, uri string) lib.InputOption {
+	return func(t lib.InputConverter) {
+		t.(*text_in).Name = strings.TrimSpace(name)
+		t.(*text_in).URI = strings.TrimSpace(uri)
+	}
+}
+
+func WithIPOrCIDR(ipOrCIDR []string) lib.InputOption {
+	return func(t lib.InputConverter) {
+		t.(*text_in).IPOrCIDR = ipOrCIDR
+	}
+}
+
+func WithInputDir(dir string) lib.InputOption {
+	return func(t lib.InputConverter) {
+		t.(*text_in).InputDir = strings.TrimSpace(dir)
+	}
+}
+
+func WithInputWantedList(lists []string) lib.InputOption {
+	return func(t lib.InputConverter) {
+		wantList := make(map[string]bool)
+		for _, want := range lists {
+			if want = strings.ToUpper(strings.TrimSpace(want)); want != "" {
+				wantList[want] = true
+			}
+		}
+
+		t.(*text_in).Want = wantList
+	}
+}
+
+func WithInputOnlyIPType(onlyIPType lib.IPType) lib.InputOption {
+	return func(t lib.InputConverter) {
+		t.(*text_in).OnlyIPType = onlyIPType
+	}
+}
+
+func WithJSONPath(jsonPath []string) lib.InputOption {
+	return func(t lib.InputConverter) {
+		t.(*text_in).JSONPath = jsonPath
+	}
+}
+
+func WithRemovePrefixesInLine(prefixes []string) lib.InputOption {
+	return func(t lib.InputConverter) {
+		t.(*text_in).RemovePrefixesInLine = prefixes
+	}
+}
+
+func WithRemoveSuffixesInLine(suffixes []string) lib.InputOption {
+	return func(t lib.InputConverter) {
+		t.(*text_in).RemoveSuffixesInLine = suffixes
+	}
+}
+
+func NewTextInFromBytes(iType string, iDesc string, action lib.Action, data []byte) (lib.InputConverter, error) {
 	var tmp struct {
 		Name       string     `json:"name"`
 		URI        string     `json:"uri"`
@@ -69,44 +141,32 @@ func newTextIn(iType string, iDesc string, action lib.Action, data json.RawMessa
 		return nil, fmt.Errorf("❌ [type %s | action %s] inputDir is not allowed to be used with name or uri or ipOrCIDR", iType, action)
 	}
 
-	// Filter want list
-	wantList := make(map[string]bool)
-	for _, want := range tmp.Want {
-		if want = strings.ToUpper(strings.TrimSpace(want)); want != "" {
-			wantList[want] = true
-		}
-	}
-
-	return &TextIn{
-		Type:        iType,
-		Action:      action,
-		Description: iDesc,
-		Name:        tmp.Name,
-		URI:         tmp.URI,
-		IPOrCIDR:    tmp.IPOrCIDR,
-		InputDir:    tmp.InputDir,
-		Want:        wantList,
-		OnlyIPType:  tmp.OnlyIPType,
-
-		JSONPath:             tmp.JSONPath,
-		RemovePrefixesInLine: tmp.RemovePrefixesInLine,
-		RemoveSuffixesInLine: tmp.RemoveSuffixesInLine,
-	}, nil
+	return NewTextIn(
+		iType, iDesc, action,
+		WithNameAndURI(tmp.Name, tmp.URI),
+		WithIPOrCIDR(tmp.IPOrCIDR),
+		WithInputDir(tmp.InputDir),
+		WithInputWantedList(tmp.Want),
+		WithInputOnlyIPType(tmp.OnlyIPType),
+		WithJSONPath(tmp.JSONPath),
+		WithRemovePrefixesInLine(tmp.RemovePrefixesInLine),
+		WithRemoveSuffixesInLine(tmp.RemoveSuffixesInLine),
+	), nil
 }
 
-func (t *TextIn) GetType() string {
+func (t *text_in) GetType() string {
 	return t.Type
 }
 
-func (t *TextIn) GetAction() lib.Action {
+func (t *text_in) GetAction() lib.Action {
 	return t.Action
 }
 
-func (t *TextIn) GetDescription() string {
+func (t *text_in) GetDescription() string {
 	return t.Description
 }
 
-func (t *TextIn) Input(container lib.Container) (lib.Container, error) {
+func (t *text_in) Input(container lib.Container) (lib.Container, error) {
 	entries := make(map[string]*lib.Entry)
 	var err error
 
@@ -162,7 +222,7 @@ func (t *TextIn) Input(container lib.Container) (lib.Container, error) {
 	return container, nil
 }
 
-func (t *TextIn) walkDir(dir string, entries map[string]*lib.Entry) error {
+func (t *text_in) walkDir(dir string, entries map[string]*lib.Entry) error {
 	err := filepath.Walk(dir, func(path string, info os.FileInfo, err error) error {
 		if err != nil {
 			return err
@@ -181,7 +241,7 @@ func (t *TextIn) walkDir(dir string, entries map[string]*lib.Entry) error {
 	return err
 }
 
-func (t *TextIn) walkLocalFile(path, name string, entries map[string]*lib.Entry) error {
+func (t *text_in) walkLocalFile(path, name string, entries map[string]*lib.Entry) error {
 	entryName := ""
 	name = strings.TrimSpace(name)
 	if name != "" {
@@ -225,7 +285,7 @@ func (t *TextIn) walkLocalFile(path, name string, entries map[string]*lib.Entry)
 	return nil
 }
 
-func (t *TextIn) walkRemoteFile(url, name string, entries map[string]*lib.Entry) error {
+func (t *text_in) walkRemoteFile(url, name string, entries map[string]*lib.Entry) error {
 	resp, err := http.Get(url)
 	if err != nil {
 		return err
@@ -252,7 +312,7 @@ func (t *TextIn) walkRemoteFile(url, name string, entries map[string]*lib.Entry)
 	return nil
 }
 
-func (t *TextIn) appendIPOrCIDR(ipOrCIDR []string, name string, entries map[string]*lib.Entry) error {
+func (t *text_in) appendIPOrCIDR(ipOrCIDR []string, name string, entries map[string]*lib.Entry) error {
 	name = strings.ToUpper(name)
 
 	entry, found := entries[name]
diff --git a/plugin/plaintext/text_out.go b/plugin/plaintext/text_out.go
index 06f4df63..191f067c 100644
--- a/plugin/plaintext/text_out.go
+++ b/plugin/plaintext/text_out.go
@@ -16,26 +16,26 @@ const (
 
 func init() {
 	lib.RegisterOutputConfigCreator(TypeTextOut, func(action lib.Action, data json.RawMessage) (lib.OutputConverter, error) {
-		return newTextOut(TypeTextOut, DescTextOut, action, data)
+		return NewTextOutFromBytes(TypeTextOut, DescTextOut, action, data)
 	})
-	lib.RegisterOutputConverter(TypeTextOut, &TextOut{
+	lib.RegisterOutputConverter(TypeTextOut, &text_out{
 		Description: DescTextOut,
 	})
 }
 
-func (t *TextOut) GetType() string {
+func (t *text_out) GetType() string {
 	return t.Type
 }
 
-func (t *TextOut) GetAction() lib.Action {
+func (t *text_out) GetAction() lib.Action {
 	return t.Action
 }
 
-func (t *TextOut) GetDescription() string {
+func (t *text_out) GetDescription() string {
 	return t.Description
 }
 
-func (t *TextOut) Output(container lib.Container) error {
+func (t *text_out) Output(container lib.Container) error {
 	for _, name := range t.filterAndSortList(container) {
 		entry, found := container.GetEntry(name)
 		if !found {
@@ -57,7 +57,7 @@ func (t *TextOut) Output(container lib.Container) error {
 	return nil
 }
 
-func (t *TextOut) filterAndSortList(container lib.Container) []string {
+func (t *text_out) filterAndSortList(container lib.Container) []string {
 	excludeMap := make(map[string]bool)
 	for _, exclude := range t.Exclude {
 		if exclude = strings.ToUpper(strings.TrimSpace(exclude)); exclude != "" {
diff --git a/plugin/special/cutter.go b/plugin/special/cutter.go
index 509cddbb..babeac5c 100644
--- a/plugin/special/cutter.go
+++ b/plugin/special/cutter.go
@@ -15,14 +15,38 @@ const (
 
 func init() {
 	lib.RegisterInputConfigCreator(TypeCutter, func(action lib.Action, data json.RawMessage) (lib.InputConverter, error) {
-		return newCutter(action, data)
+		return NewCutterFromBytes(action, data)
 	})
-	lib.RegisterInputConverter(TypeCutter, &Cutter{
+	lib.RegisterInputConverter(TypeCutter, &cutter{
 		Description: DescCutter,
 	})
 }
 
-func newCutter(action lib.Action, data json.RawMessage) (lib.InputConverter, error) {
+type cutter struct {
+	Type        string
+	Action      lib.Action
+	Description string
+	Want        map[string]bool
+	OnlyIPType  lib.IPType
+}
+
+func NewCutter(action lib.Action, opts ...lib.InputOption) lib.InputConverter {
+	c := &cutter{
+		Type:        TypeCutter,
+		Action:      action,
+		Description: DescCutter,
+	}
+
+	for _, opt := range opts {
+		if opt != nil {
+			opt(c)
+		}
+	}
+
+	return c
+}
+
+func NewCutterFromBytes(action lib.Action, data []byte) (lib.InputConverter, error) {
 	var tmp struct {
 		Want       []string   `json:"wantedList"`
 		OnlyIPType lib.IPType `json:"onlyIPType"`
@@ -50,36 +74,38 @@ func newCutter(action lib.Action, data json.RawMessage) (lib.InputConverter, err
 		return nil, fmt.Errorf("❌ [type %s] wantedList must be specified", TypeCutter)
 	}
 
-	return &Cutter{
-		Type:        TypeCutter,
-		Action:      action,
-		Description: DescCutter,
-		Want:        wantList,
-		OnlyIPType:  tmp.OnlyIPType,
-	}, nil
+	return NewCutter(
+		action,
+		WithCutterWantedList(wantList),
+		WithCutterOnlyIPType(tmp.OnlyIPType),
+	), nil
 }
 
-type Cutter struct {
-	Type        string
-	Action      lib.Action
-	Description string
-	Want        map[string]bool
-	OnlyIPType  lib.IPType
+func WithCutterWantedList(wantList map[string]bool) lib.InputOption {
+	return func(c lib.InputConverter) {
+		c.(*cutter).Want = wantList
+	}
+}
+
+func WithCutterOnlyIPType(onlyIPType lib.IPType) lib.InputOption {
+	return func(c lib.InputConverter) {
+		c.(*cutter).OnlyIPType = onlyIPType
+	}
 }
 
-func (c *Cutter) GetType() string {
+func (c *cutter) GetType() string {
 	return c.Type
 }
 
-func (c *Cutter) GetAction() lib.Action {
+func (c *cutter) GetAction() lib.Action {
 	return c.Action
 }
 
-func (c *Cutter) GetDescription() string {
+func (c *cutter) GetDescription() string {
 	return c.Description
 }
 
-func (c *Cutter) Input(container lib.Container) (lib.Container, error) {
+func (c *cutter) Input(container lib.Container) (lib.Container, error) {
 	ignoreIPType := lib.GetIgnoreIPType(c.OnlyIPType)
 
 	for entry := range container.Loop() {
diff --git a/plugin/special/lookup.go b/plugin/special/lookup.go
index 96735146..642c39e3 100644
--- a/plugin/special/lookup.go
+++ b/plugin/special/lookup.go
@@ -18,14 +18,50 @@ const (
 
 func init() {
 	lib.RegisterOutputConfigCreator(TypeLookup, func(action lib.Action, data json.RawMessage) (lib.OutputConverter, error) {
-		return newLookup(action, data)
+		return NewLookupFromBytes(action, data)
 	})
-	lib.RegisterOutputConverter(TypeLookup, &Lookup{
+	lib.RegisterOutputConverter(TypeLookup, &lookup{
 		Description: DescLookup,
 	})
 }
 
-func newLookup(action lib.Action, data json.RawMessage) (lib.OutputConverter, error) {
+type lookup struct {
+	Type        string
+	Action      lib.Action
+	Description string
+	Search      string
+	SearchList  []string
+}
+
+func NewLookup(action lib.Action, opts ...lib.OutputOption) lib.OutputConverter {
+	l := &lookup{
+		Type:        TypeLookup,
+		Action:      action,
+		Description: DescLookup,
+	}
+
+	for _, opt := range opts {
+		if opt != nil {
+			opt(l)
+		}
+	}
+
+	return l
+}
+
+func WithSearch(search string) lib.OutputOption {
+	return func(l lib.OutputConverter) {
+		l.(*lookup).Search = strings.TrimSpace(search)
+	}
+}
+
+func WithSearchList(searchList []string) lib.OutputOption {
+	return func(l lib.OutputConverter) {
+		l.(*lookup).SearchList = searchList
+	}
+}
+
+func NewLookupFromBytes(action lib.Action, data []byte) (lib.OutputConverter, error) {
 	var tmp struct {
 		Search     string   `json:"search"`
 		SearchList []string `json:"searchList"`
@@ -42,36 +78,26 @@ func newLookup(action lib.Action, data json.RawMessage) (lib.OutputConverter, er
 		return nil, fmt.Errorf("❌ [type %s | action %s] please specify an IP or a CIDR as search target", TypeLookup, action)
 	}
 
-	return &Lookup{
-		Type:        TypeLookup,
-		Action:      action,
-		Description: DescLookup,
-		Search:      tmp.Search,
-		SearchList:  tmp.SearchList,
-	}, nil
-}
-
-type Lookup struct {
-	Type        string
-	Action      lib.Action
-	Description string
-	Search      string
-	SearchList  []string
+	return NewLookup(
+		action,
+		WithSearch(tmp.Search),
+		WithSearchList(tmp.SearchList),
+	), nil
 }
 
-func (l *Lookup) GetType() string {
+func (l *lookup) GetType() string {
 	return l.Type
 }
 
-func (l *Lookup) GetAction() lib.Action {
+func (l *lookup) GetAction() lib.Action {
 	return l.Action
 }
 
-func (l *Lookup) GetDescription() string {
+func (l *lookup) GetDescription() string {
 	return l.Description
 }
 
-func (l *Lookup) Output(container lib.Container) error {
+func (l *lookup) Output(container lib.Container) error {
 	switch strings.Contains(l.Search, "/") {
 	case true: // CIDR
 		if _, err := netip.ParsePrefix(l.Search); err != nil {
diff --git a/plugin/special/private.go b/plugin/special/private.go
index 1bc170bc..6b863040 100644
--- a/plugin/special/private.go
+++ b/plugin/special/private.go
@@ -38,14 +38,43 @@ var privateCIDRs = []string{
 
 func init() {
 	lib.RegisterInputConfigCreator(TypePrivate, func(action lib.Action, data json.RawMessage) (lib.InputConverter, error) {
-		return newPrivate(action, data)
+		return NewPrivateFromBytes(action, data)
 	})
-	lib.RegisterInputConverter(TypePrivate, &Private{
+	lib.RegisterInputConverter(TypePrivate, &private{
 		Description: DescPrivate,
 	})
 }
 
-func newPrivate(action lib.Action, data json.RawMessage) (lib.InputConverter, error) {
+type private struct {
+	Type        string
+	Action      lib.Action
+	Description string
+	OnlyIPType  lib.IPType
+}
+
+func NewPrivate(action lib.Action, opts ...lib.InputOption) lib.InputConverter {
+	p := &private{
+		Type:        TypePrivate,
+		Action:      action,
+		Description: DescPrivate,
+	}
+
+	for _, opt := range opts {
+		if opt != nil {
+			opt(p)
+		}
+	}
+
+	return p
+}
+
+func WithPrivateOnlyIPType(onlyIPType lib.IPType) lib.InputOption {
+	return func(p lib.InputConverter) {
+		p.(*private).OnlyIPType = onlyIPType
+	}
+}
+
+func NewPrivateFromBytes(action lib.Action, data []byte) (lib.InputConverter, error) {
 	var tmp struct {
 		OnlyIPType lib.IPType `json:"onlyIPType"`
 	}
@@ -56,34 +85,25 @@ func newPrivate(action lib.Action, data json.RawMessage) (lib.InputConverter, er
 		}
 	}
 
-	return &Private{
-		Type:        TypePrivate,
-		Action:      action,
-		Description: DescPrivate,
-		OnlyIPType:  tmp.OnlyIPType,
-	}, nil
-}
-
-type Private struct {
-	Type        string
-	Action      lib.Action
-	Description string
-	OnlyIPType  lib.IPType
+	return NewPrivate(
+		action,
+		WithPrivateOnlyIPType(tmp.OnlyIPType),
+	), nil
 }
 
-func (p *Private) GetType() string {
+func (p *private) GetType() string {
 	return p.Type
 }
 
-func (p *Private) GetAction() lib.Action {
+func (p *private) GetAction() lib.Action {
 	return p.Action
 }
 
-func (p *Private) GetDescription() string {
+func (p *private) GetDescription() string {
 	return p.Description
 }
 
-func (p *Private) Input(container lib.Container) (lib.Container, error) {
+func (p *private) Input(container lib.Container) (lib.Container, error) {
 	entry, found := container.GetEntry(entryNamePrivate)
 	if !found {
 		entry = lib.NewEntry(entryNamePrivate)
diff --git a/plugin/special/stdin.go b/plugin/special/stdin.go
index f2f9cf9c..f592560e 100644
--- a/plugin/special/stdin.go
+++ b/plugin/special/stdin.go
@@ -4,6 +4,7 @@ import (
 	"bufio"
 	"encoding/json"
 	"fmt"
+	"log"
 	"os"
 	"strings"
 
@@ -17,14 +18,55 @@ const (
 
 func init() {
 	lib.RegisterInputConfigCreator(TypeStdin, func(action lib.Action, data json.RawMessage) (lib.InputConverter, error) {
-		return newStdin(action, data)
+		return NewStdinFromBytes(action, data)
 	})
-	lib.RegisterInputConverter(TypeStdin, &Stdin{
+	lib.RegisterInputConverter(TypeStdin, &stdin{
 		Description: DescStdin,
 	})
 }
 
-func newStdin(action lib.Action, data json.RawMessage) (lib.InputConverter, error) {
+type stdin struct {
+	Type        string
+	Action      lib.Action
+	Description string
+	Name        string
+	OnlyIPType  lib.IPType
+}
+
+func NewStdin(action lib.Action, opts ...lib.InputOption) lib.InputConverter {
+	s := &stdin{
+		Type:        TypeStdin,
+		Action:      action,
+		Description: DescStdin,
+	}
+
+	for _, opt := range opts {
+		if opt != nil {
+			opt(s)
+		}
+	}
+
+	return s
+}
+
+func WithStdinName(name string) lib.InputOption {
+	return func(s lib.InputConverter) {
+		name = strings.TrimSpace(name)
+		if name == "" {
+			log.Fatalf("❌ [type %s | action %s] missing name", TypeStdin, s.(*stdin).Action)
+		}
+
+		s.(*stdin).Name = name
+	}
+}
+
+func WithStdinOnlyIPType(onlyIPType lib.IPType) lib.InputOption {
+	return func(s lib.InputConverter) {
+		s.(*stdin).OnlyIPType = onlyIPType
+	}
+}
+
+func NewStdinFromBytes(action lib.Action, data []byte) (lib.InputConverter, error) {
 	var tmp struct {
 		Name       string     `json:"name"`
 		OnlyIPType lib.IPType `json:"onlyIPType"`
@@ -40,36 +82,26 @@ func newStdin(action lib.Action, data json.RawMessage) (lib.InputConverter, erro
 		return nil, fmt.Errorf("❌ [type %s | action %s] missing name", TypeStdin, action)
 	}
 
-	return &Stdin{
-		Type:        TypeStdin,
-		Action:      action,
-		Description: DescStdin,
-		Name:        tmp.Name,
-		OnlyIPType:  tmp.OnlyIPType,
-	}, nil
-}
-
-type Stdin struct {
-	Type        string
-	Action      lib.Action
-	Description string
-	Name        string
-	OnlyIPType  lib.IPType
+	return NewStdin(
+		action,
+		WithStdinName(tmp.Name),
+		WithStdinOnlyIPType(tmp.OnlyIPType),
+	), nil
 }
 
-func (s *Stdin) GetType() string {
+func (s *stdin) GetType() string {
 	return s.Type
 }
 
-func (s *Stdin) GetAction() lib.Action {
+func (s *stdin) GetAction() lib.Action {
 	return s.Action
 }
 
-func (s *Stdin) GetDescription() string {
+func (s *stdin) GetDescription() string {
 	return s.Description
 }
 
-func (s *Stdin) Input(container lib.Container) (lib.Container, error) {
+func (s *stdin) Input(container lib.Container) (lib.Container, error) {
 	entry := lib.NewEntry(s.Name)
 
 	scanner := bufio.NewScanner(os.Stdin)
diff --git a/plugin/special/stdout.go b/plugin/special/stdout.go
index 614deaac..e356c577 100644
--- a/plugin/special/stdout.go
+++ b/plugin/special/stdout.go
@@ -18,14 +18,57 @@ const (
 
 func init() {
 	lib.RegisterOutputConfigCreator(TypeStdout, func(action lib.Action, data json.RawMessage) (lib.OutputConverter, error) {
-		return newStdout(action, data)
+		return NewStdoutFromBytes(action, data)
 	})
-	lib.RegisterOutputConverter(TypeStdout, &Stdout{
+	lib.RegisterOutputConverter(TypeStdout, &stdout{
 		Description: DescStdout,
 	})
 }
 
-func newStdout(action lib.Action, data json.RawMessage) (lib.OutputConverter, error) {
+type stdout struct {
+	Type        string
+	Action      lib.Action
+	Description string
+	Want        []string
+	Exclude     []string
+	OnlyIPType  lib.IPType
+}
+
+func NewStdout(action lib.Action, opts ...lib.OutputOption) lib.OutputConverter {
+	s := &stdout{
+		Type:        TypeStdout,
+		Action:      action,
+		Description: DescStdout,
+	}
+
+	for _, opt := range opts {
+		if opt != nil {
+			opt(s)
+		}
+	}
+
+	return s
+}
+
+func WithStdoutWantedList(lists []string) lib.OutputOption {
+	return func(s lib.OutputConverter) {
+		s.(*stdout).Want = lists
+	}
+}
+
+func WithStdoutExcludedList(lists []string) lib.OutputOption {
+	return func(s lib.OutputConverter) {
+		s.(*stdout).Exclude = lists
+	}
+}
+
+func WithStdoutOnlyIPType(onlyIPType lib.IPType) lib.OutputOption {
+	return func(s lib.OutputConverter) {
+		s.(*stdout).OnlyIPType = onlyIPType
+	}
+}
+
+func NewStdoutFromBytes(action lib.Action, data []byte) (lib.OutputConverter, error) {
 	var tmp struct {
 		Want       []string   `json:"wantedList"`
 		Exclude    []string   `json:"excludedList"`
@@ -38,38 +81,27 @@ func newStdout(action lib.Action, data json.RawMessage) (lib.OutputConverter, er
 		}
 	}
 
-	return &Stdout{
-		Type:        TypeStdout,
-		Action:      action,
-		Description: DescStdout,
-		Want:        tmp.Want,
-		Exclude:     tmp.Exclude,
-		OnlyIPType:  tmp.OnlyIPType,
-	}, nil
-}
-
-type Stdout struct {
-	Type        string
-	Action      lib.Action
-	Description string
-	Want        []string
-	Exclude     []string
-	OnlyIPType  lib.IPType
+	return NewStdout(
+		action,
+		WithStdoutWantedList(tmp.Want),
+		WithStdoutExcludedList(tmp.Exclude),
+		WithStdoutOnlyIPType(tmp.OnlyIPType),
+	), nil
 }
 
-func (s *Stdout) GetType() string {
+func (s *stdout) GetType() string {
 	return s.Type
 }
 
-func (s *Stdout) GetAction() lib.Action {
+func (s *stdout) GetAction() lib.Action {
 	return s.Action
 }
 
-func (s *Stdout) GetDescription() string {
+func (s *stdout) GetDescription() string {
 	return s.Description
 }
 
-func (s *Stdout) Output(container lib.Container) error {
+func (s *stdout) Output(container lib.Container) error {
 	for _, name := range s.filterAndSortList(container) {
 		entry, found := container.GetEntry(name)
 		if !found {
@@ -89,7 +121,7 @@ func (s *Stdout) Output(container lib.Container) error {
 	return nil
 }
 
-func (s *Stdout) filterAndSortList(container lib.Container) []string {
+func (s *stdout) filterAndSortList(container lib.Container) []string {
 	excludeMap := make(map[string]bool)
 	for _, exclude := range s.Exclude {
 		if exclude = strings.ToUpper(strings.TrimSpace(exclude)); exclude != "" {
@@ -125,7 +157,7 @@ func (s *Stdout) filterAndSortList(container lib.Container) []string {
 	return list
 }
 
-func (s *Stdout) generateCIDRList(entry *lib.Entry) ([]string, error) {
+func (s *stdout) generateCIDRList(entry *lib.Entry) ([]string, error) {
 	entryList, err := entry.MarshalText(lib.GetIgnoreIPType(s.OnlyIPType))
 	if err != nil {
 		return nil, err
diff --git a/plugin/v2ray/dat_in.go b/plugin/v2ray/dat_in.go
index 33a24061..93c52a51 100644
--- a/plugin/v2ray/dat_in.go
+++ b/plugin/v2ray/dat_in.go
@@ -4,6 +4,7 @@ import (
 	"encoding/json"
 	"fmt"
 	"io"
+	"log"
 	"net"
 	"net/http"
 	"os"
@@ -20,70 +21,102 @@ const (
 
 func init() {
 	lib.RegisterInputConfigCreator(TypeGeoIPDatIn, func(action lib.Action, data json.RawMessage) (lib.InputConverter, error) {
-		return newGeoIPDatIn(action, data)
+		return NewGeoIPDatInFromBytes(action, data)
 	})
-	lib.RegisterInputConverter(TypeGeoIPDatIn, &GeoIPDatIn{
+	lib.RegisterInputConverter(TypeGeoIPDatIn, &geoIPDatIn{
 		Description: DescGeoIPDatIn,
 	})
 }
 
-func newGeoIPDatIn(action lib.Action, data json.RawMessage) (lib.InputConverter, error) {
-	var tmp struct {
-		URI        string     `json:"uri"`
-		Want       []string   `json:"wantedList"`
-		OnlyIPType lib.IPType `json:"onlyIPType"`
+type geoIPDatIn struct {
+	Type        string
+	Action      lib.Action
+	Description string
+	URI         string
+	Want        map[string]bool
+	OnlyIPType  lib.IPType
+}
+
+func NewGeoIPDatIn(action lib.Action, opts ...lib.InputOption) lib.InputConverter {
+	g := &geoIPDatIn{
+		Type:        TypeGeoIPDatIn,
+		Action:      action,
+		Description: DescGeoIPDatIn,
 	}
 
-	if len(data) > 0 {
-		if err := json.Unmarshal(data, &tmp); err != nil {
-			return nil, err
+	for _, opt := range opts {
+		if opt != nil {
+			opt(g)
 		}
 	}
 
-	if tmp.URI == "" {
-		return nil, fmt.Errorf("❌ [type %s | action %s] uri must be specified in config", TypeGeoIPDatIn, action)
+	return g
+}
+
+func WithURI(uri string) lib.InputOption {
+	return func(g lib.InputConverter) {
+		uri = strings.TrimSpace(uri)
+		if uri == "" {
+			log.Fatalf("❌ [type %s | action %s] uri must be specified", TypeGeoIPDatIn, g.(*geoIPDatIn).Action)
+		}
+
+		g.(*geoIPDatIn).URI = uri
 	}
+}
 
-	// Filter want list
-	wantList := make(map[string]bool)
-	for _, want := range tmp.Want {
-		if want = strings.ToUpper(strings.TrimSpace(want)); want != "" {
-			wantList[want] = true
+func WithInputWantedList(lists []string) lib.InputOption {
+	return func(g lib.InputConverter) {
+		wantList := make(map[string]bool)
+		for _, want := range lists {
+			if want = strings.ToUpper(strings.TrimSpace(want)); want != "" {
+				wantList[want] = true
+			}
 		}
+
+		g.(*geoIPDatIn).Want = wantList
 	}
+}
 
-	return &GeoIPDatIn{
-		Type:        TypeGeoIPDatIn,
-		Action:      action,
-		Description: DescGeoIPDatIn,
-		URI:         tmp.URI,
-		Want:        wantList,
-		OnlyIPType:  tmp.OnlyIPType,
-	}, nil
+func WithInputOnlyIPType(onlyIPType lib.IPType) lib.InputOption {
+	return func(g lib.InputConverter) {
+		g.(*geoIPDatIn).OnlyIPType = onlyIPType
+	}
 }
 
-type GeoIPDatIn struct {
-	Type        string
-	Action      lib.Action
-	Description string
-	URI         string
-	Want        map[string]bool
-	OnlyIPType  lib.IPType
+func NewGeoIPDatInFromBytes(action lib.Action, data []byte) (lib.InputConverter, error) {
+	var tmp struct {
+		URI        string     `json:"uri"`
+		Want       []string   `json:"wantedList"`
+		OnlyIPType lib.IPType `json:"onlyIPType"`
+	}
+
+	if len(data) > 0 {
+		if err := json.Unmarshal(data, &tmp); err != nil {
+			return nil, err
+		}
+	}
+
+	return NewGeoIPDatIn(
+		action,
+		WithURI(tmp.URI),
+		WithInputWantedList(tmp.Want),
+		WithInputOnlyIPType(tmp.OnlyIPType),
+	), nil
 }
 
-func (g *GeoIPDatIn) GetType() string {
+func (g *geoIPDatIn) GetType() string {
 	return g.Type
 }
 
-func (g *GeoIPDatIn) GetAction() lib.Action {
+func (g *geoIPDatIn) GetAction() lib.Action {
 	return g.Action
 }
 
-func (g *GeoIPDatIn) GetDescription() string {
+func (g *geoIPDatIn) GetDescription() string {
 	return g.Description
 }
 
-func (g *GeoIPDatIn) Input(container lib.Container) (lib.Container, error) {
+func (g *geoIPDatIn) Input(container lib.Container) (lib.Container, error) {
 	entries := make(map[string]*lib.Entry)
 	var err error
 
@@ -122,7 +155,7 @@ func (g *GeoIPDatIn) Input(container lib.Container) (lib.Container, error) {
 	return container, nil
 }
 
-func (g *GeoIPDatIn) walkLocalFile(path string, entries map[string]*lib.Entry) error {
+func (g *geoIPDatIn) walkLocalFile(path string, entries map[string]*lib.Entry) error {
 	file, err := os.Open(path)
 	if err != nil {
 		return err
@@ -136,7 +169,7 @@ func (g *GeoIPDatIn) walkLocalFile(path string, entries map[string]*lib.Entry) e
 	return nil
 }
 
-func (g *GeoIPDatIn) walkRemoteFile(url string, entries map[string]*lib.Entry) error {
+func (g *geoIPDatIn) walkRemoteFile(url string, entries map[string]*lib.Entry) error {
 	resp, err := http.Get(url)
 	if err != nil {
 		return err
@@ -154,7 +187,7 @@ func (g *GeoIPDatIn) walkRemoteFile(url string, entries map[string]*lib.Entry) e
 	return nil
 }
 
-func (g *GeoIPDatIn) generateEntries(reader io.Reader, entries map[string]*lib.Entry) error {
+func (g *geoIPDatIn) generateEntries(reader io.Reader, entries map[string]*lib.Entry) error {
 	geoipBytes, err := io.ReadAll(reader)
 	if err != nil {
 		return err
diff --git a/plugin/v2ray/dat_out.go b/plugin/v2ray/dat_out.go
index 5137e828..f2a28216 100644
--- a/plugin/v2ray/dat_out.go
+++ b/plugin/v2ray/dat_out.go
@@ -26,14 +26,88 @@ var (
 
 func init() {
 	lib.RegisterOutputConfigCreator(TypeGeoIPDatOut, func(action lib.Action, data json.RawMessage) (lib.OutputConverter, error) {
-		return newGeoIPDatOut(action, data)
+		return NewGeoIPDatOutFromBytes(action, data)
 	})
-	lib.RegisterOutputConverter(TypeGeoIPDatOut, &GeoIPDatOut{
+	lib.RegisterOutputConverter(TypeGeoIPDatOut, &geoIPDatOut{
 		Description: DescGeoIPDatOut,
 	})
 }
 
-func newGeoIPDatOut(action lib.Action, data json.RawMessage) (lib.OutputConverter, error) {
+type geoIPDatOut struct {
+	Type           string
+	Action         lib.Action
+	Description    string
+	OutputName     string
+	OutputDir      string
+	Want           []string
+	Exclude        []string
+	OneFilePerList bool
+	OnlyIPType     lib.IPType
+}
+
+func NewGeoIPDatOut(action lib.Action, opts ...lib.OutputOption) lib.OutputConverter {
+	g := &geoIPDatOut{
+		Type:        TypeGeoIPDatOut,
+		Action:      action,
+		Description: DescGeoIPDatOut,
+	}
+
+	for _, opt := range opts {
+		if opt != nil {
+			opt(g)
+		}
+	}
+
+	return g
+}
+
+func WithOutputName(name string) lib.OutputOption {
+	return func(g lib.OutputConverter) {
+		name = strings.TrimSpace(name)
+		if name == "" {
+			name = defaultOutputName
+		}
+
+		g.(*geoIPDatOut).OutputName = name
+	}
+}
+
+func WithOutputDir(dir string) lib.OutputOption {
+	return func(g lib.OutputConverter) {
+		dir = strings.TrimSpace(dir)
+		if dir == "" {
+			dir = defaultOutputDir
+		}
+
+		g.(*geoIPDatOut).OutputDir = dir
+	}
+}
+
+func WithOutputWantedList(lists []string) lib.OutputOption {
+	return func(g lib.OutputConverter) {
+		g.(*geoIPDatOut).Want = lists
+	}
+}
+
+func WithOutputExcludedList(lists []string) lib.OutputOption {
+	return func(g lib.OutputConverter) {
+		g.(*geoIPDatOut).Exclude = lists
+	}
+}
+
+func WithOneFilePerList(oneFilePerList bool) lib.OutputOption {
+	return func(g lib.OutputConverter) {
+		g.(*geoIPDatOut).OneFilePerList = oneFilePerList
+	}
+}
+
+func WithOutputOnlyIPType(onlyIPType lib.IPType) lib.OutputOption {
+	return func(g lib.OutputConverter) {
+		g.(*geoIPDatOut).OnlyIPType = onlyIPType
+	}
+}
+
+func NewGeoIPDatOutFromBytes(action lib.Action, data []byte) (lib.OutputConverter, error) {
 	var tmp struct {
 		OutputName     string     `json:"outputName"`
 		OutputDir      string     `json:"outputDir"`
@@ -49,52 +123,30 @@ func newGeoIPDatOut(action lib.Action, data json.RawMessage) (lib.OutputConverte
 		}
 	}
 
-	if tmp.OutputName == "" {
-		tmp.OutputName = defaultOutputName
-	}
-
-	if tmp.OutputDir == "" {
-		tmp.OutputDir = defaultOutputDir
-	}
-
-	return &GeoIPDatOut{
-		Type:           TypeGeoIPDatOut,
-		Action:         action,
-		Description:    DescGeoIPDatOut,
-		OutputName:     tmp.OutputName,
-		OutputDir:      tmp.OutputDir,
-		Want:           tmp.Want,
-		Exclude:        tmp.Exclude,
-		OneFilePerList: tmp.OneFilePerList,
-		OnlyIPType:     tmp.OnlyIPType,
-	}, nil
-}
-
-type GeoIPDatOut struct {
-	Type           string
-	Action         lib.Action
-	Description    string
-	OutputName     string
-	OutputDir      string
-	Want           []string
-	Exclude        []string
-	OneFilePerList bool
-	OnlyIPType     lib.IPType
+	return NewGeoIPDatOut(
+		action,
+		WithOutputName(tmp.OutputName),
+		WithOutputDir(tmp.OutputDir),
+		WithOutputWantedList(tmp.Want),
+		WithOutputExcludedList(tmp.Exclude),
+		WithOneFilePerList(tmp.OneFilePerList),
+		WithOutputOnlyIPType(tmp.OnlyIPType),
+	), nil
 }
 
-func (g *GeoIPDatOut) GetType() string {
+func (g *geoIPDatOut) GetType() string {
 	return g.Type
 }
 
-func (g *GeoIPDatOut) GetAction() lib.Action {
+func (g *geoIPDatOut) GetAction() lib.Action {
 	return g.Action
 }
 
-func (g *GeoIPDatOut) GetDescription() string {
+func (g *geoIPDatOut) GetDescription() string {
 	return g.Description
 }
 
-func (g *GeoIPDatOut) Output(container lib.Container) error {
+func (g *geoIPDatOut) Output(container lib.Container) error {
 	geoIPList := new(GeoIPList)
 	geoIPList.Entry = make([]*GeoIP, 0, 300)
 	updated := false
@@ -144,7 +196,7 @@ func (g *GeoIPDatOut) Output(container lib.Container) error {
 	return nil
 }
 
-func (g *GeoIPDatOut) filterAndSortList(container lib.Container) []string {
+func (g *geoIPDatOut) filterAndSortList(container lib.Container) []string {
 	excludeMap := make(map[string]bool)
 	for _, exclude := range g.Exclude {
 		if exclude = strings.ToUpper(strings.TrimSpace(exclude)); exclude != "" {
@@ -180,7 +232,7 @@ func (g *GeoIPDatOut) filterAndSortList(container lib.Container) []string {
 	return list
 }
 
-func (g *GeoIPDatOut) generateGeoIP(entry *lib.Entry) (*GeoIP, error) {
+func (g *geoIPDatOut) generateGeoIP(entry *lib.Entry) (*GeoIP, error) {
 	entryCidr, err := entry.MarshalPrefix(lib.GetIgnoreIPType(g.OnlyIPType))
 	if err != nil {
 		return nil, err
@@ -205,13 +257,13 @@ func (g *GeoIPDatOut) generateGeoIP(entry *lib.Entry) (*GeoIP, error) {
 }
 
 // Sort by country code to make reproducible builds
-func (g *GeoIPDatOut) sort(list *GeoIPList) {
+func (g *geoIPDatOut) sort(list *GeoIPList) {
 	sort.SliceStable(list.Entry, func(i, j int) bool {
 		return list.Entry[i].CountryCode < list.Entry[j].CountryCode
 	})
 }
 
-func (g *GeoIPDatOut) writeFile(filename string, geoIPBytes []byte) error {
+func (g *geoIPDatOut) writeFile(filename string, geoIPBytes []byte) error {
 	if err := os.MkdirAll(g.OutputDir, 0755); err != nil {
 		return err
 	}