Refactor parameter replacement logic

lib/api/lodestone.js

@@ -1,11 +1,6 @@
 // Utilities for scraping data from the Lodestone
 
-/**
- * @see https://stackoverflow.com/a/6969486
- * @param {string}
- * @returns {string}
- */
-const regExpEscape = str => str.replace(/[.*+?^${}()|[\]\\]/g, '\\$&');
+import {regExpEscape} from '../util/regexp.js';
 
 /**
  * Creates a regular expression that matches a link to the named item and

lib/util/regexp.js

@@ -0,0 +1,6 @@
+/**
+ * @see https://stackoverflow.com/a/6969486
+ * @param {string}
+ * @returns {string}
+ */
+export const regExpEscape = str => str.replace(/[.*+?^${}()|[\]\\]/g, '\\$&');