--- /dev/null
+/**
+ * @fileoverview XML character escaper
+ * @author George Chung
+ */
+"use strict";
+
+//------------------------------------------------------------------------------
+// Public Interface
+//------------------------------------------------------------------------------
+
+/**
+ * Returns the escaped value for a character
+ * @param {string} s string to examine
+ * @returns {string} severity level
+ * @private
+ */
+module.exports = function(s) {
+ return (`${s}`).replace(/[<>&"'\x00-\x1F\x7F\u0080-\uFFFF]/gu, c => { // eslint-disable-line no-control-regex
+ switch (c) {
+ case "<":
+ return "<";
+ case ">":
+ return ">";
+ case "&":
+ return "&";
+ case "\"":
+ return """;
+ case "'":
+ return "'";
+ default:
+ return `&#${c.charCodeAt(0)};`;
+ }
+ });
+};