--- /dev/null
+/* @flow */
+"use strict";
+module.exports = function(
+ source /*: string, optionalblurChar ?: string*/
+) /*: string*/ {
+ const blurChar /*: string*/ =
+ arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : " ";
+
+ return source.replace(/[#@{}]+/g, blurChar);
+};