Add SimplXML driver to traverse XML documents

src/Openbuildings/Spiderling/Driver/SimpleXML.php

@@ -0,0 +1,38 @@
+<?php
+
+namespace Openbuildings\Spiderling;
+
+use Openbuildings\EnvironmentBackup\Environment;
+use Openbuildings\EnvironmentBackup\Environment_Group_Globals;
+use Openbuildings\EnvironmentBackup\Environment_Group_Server;
+use Openbuildings\EnvironmentBackup\Environment_Group_Static;
+
+/**
+ * Use Curl to load urls.
+ * In memory.
+ * No Javascript
+ *
+ * @package    Openbuildings\Spiderling
+ * @author     Ivan Kerin
+ * @copyright  (c) 2013 OpenBuildings Ltd.
+ * @license    http://spdx.org/licenses/BSD-3-Clause
+ */
+class Driver_SimpleXML extends Driver_Simple {
+
+	/**
+	 * The name of the driver
+	 * @var string
+	 */
+	public $name = 'simpleXML';
+
+	/**
+	 * Initialze the dom, xpath and forms objects, based on the content string
+	 */
+	public function initialize()
+	{
+		@ $this->_dom->loadXML($this->content());
+		$this->_dom->encoding = 'utf-8';
+		$this->_xpath = new Driver_Simple_Xpath($this->_dom);
+		$this->_forms = new Driver_Simple_Forms($this->_xpath);
+	}
+}