diff --git a/notes/file.go b/notes/file.go
index 630589e..ea97599 100755
--- a/notes/file.go
+++ b/notes/file.go
@@ -27,7 +27,7 @@ func (n *Notes) File(urlPath string) (string, error) {
 		return "", errors.New("path is dir")
 	}
 	b, _ := ioutil.ReadFile(p.Local)
-	return n.Gomarkdown(urlPath, b)
+	return n.gomarkdown(urlPath, b)
 	return n.blackfriday(urlPath, b)
 	return n.goldmark(urlPath, b)
 	return n.md2min(urlPath, b)
@@ -56,10 +56,14 @@ func (n *Notes) md2min(urlPath string, b []byte) (string, error) {
 	return string(buff.Bytes()), err
 }
 
-func (n *Notes) Gomarkdown(urlPath string, b []byte) (string, error) {
+func (n *Notes) gomarkdown(urlPath string, b []byte) (string, error) {
+	return Gomarkdown(b, n.commentFormer(urlPath, b))
+}
+
+func Gomarkdown(b []byte, renderHook html.RenderNodeFunc) (string, error) {
 	renderer := html.NewRenderer(html.RendererOptions{
 		Flags:          html.CommonFlags | html.TOC,
-		RenderNodeHook: n.commentFormer(urlPath, b),
+		RenderNodeHook: renderHook,
 	})
 	ext := parser.NoExtensions
 	for _, extension := range []parser.Extensions{