New Minify Classes!

libraries/Gelato/Minify/MinifyJS.php

@@ -0,0 +1,50 @@
+<?php
+
+/**
+ * Gelato Library
+ *
+ * This source file is part of the Gelato Library. More information,
+ * documentation and tutorials can be found at http://gelato.monstra.org
+ *
+ * @package     Gelato
+ *
+ * @author      Romanenko Sergey / Awilum <awilum@msn.com>
+ * @copyright   2012-2013 Romanenko Sergey / Awilum <awilum@msn.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+class MinifyJS
+{
+    /**
+     * Minify js
+     *
+     *  <code>
+     *      echo MinifyJS::process($js);
+     *  </code>
+     *
+     * @param  string $buffer html
+     * @return string
+     */
+    public static function process($js)
+    {
+        // newlines > linefeed
+        $js = str_replace(array("\r\n", "\r", "\n"), "\n", $js);
+
+        // empty lines > collapse
+        $js = preg_replace('/^[ \t]*|[ \t]*$/m', '', $js);
+        $js = preg_replace('/\n+/m', "\n", $js);
+        $js = trim($js);
+
+        // redundant whitespace > remove
+        $js = preg_replace('/(?<=[{}\[\]\(\)=><&\|;:,\?!\+-])[ \t]*|[ \t]*(?=[{}\[\]\(\)=><&\|;:,\?!\+-])/i', '', $js);
+        $js = preg_replace('/[ \t]+/', ' ', $js);
+
+        // redundant semicolons (followed by another semicolon or closing curly bracket) > remove
+        $js = preg_replace('/;\s*(?=[;}])/s', '', $js);
+
+        // Return JS
+        return $js;
+    }
+}