Added Project structure, API, Frontend and Websockets

api/vendor/league/commonmark/src/Util/Xml.php

@@ -0,0 +1,33 @@
+<?php
+
+declare(strict_types=1);
+
+/*
+ * This file is part of the league/commonmark package.
+ *
+ * (c) Colin O'Dell <[email protected]>
+ *
+ * Original code based on the CommonMark JS reference parser (https://bitly.com/commonmark-js)
+ *  - (c) John MacFarlane
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace League\CommonMark\Util;
+
+/**
+ * Utility class for handling/generating XML and HTML
+ *
+ * @psalm-immutable
+ */
+final class Xml
+{
+    /**
+     * @psalm-pure
+     */
+    public static function escape(string $string): string
+    {
+        return \str_replace(['&', '<', '>', '"'], ['&amp;', '&lt;', '&gt;', '&quot;'], $string);
+    }
+}