accept moon or json

main.go

@@ -51,17 +51,17 @@ func (r *repl) run() {
 			continue
 		}
 
-		doc, err := moon.Read(&body_in)
-		if err != nil {
-			r.errorf("moon parse error: %v", err)
-			continue
-		}
-
-		body_json, err := doc.MarshalJSON()
+		var body_json []byte
+		doc, err := moon.ReadBytes(body_in.Bytes())
+		if err == nil {
+			body_json, err = doc.MarshalJSON()
 			if err != nil {
 				r.errorf("moon to json encode error: %v", err)
 				continue
 			}
+		} else {
+			body_json = body_in.Bytes()
+		}
 
 		// compose http request
 		fqurl := fmt.Sprintf("http://%s:%d/%s", r.host, r.port, url_s)