added a validation rule for MAC addresses

src/Rule/Mac.php

@@ -0,0 +1,49 @@
+<?php
+/**
+ * @package   Fuel\Validation
+ * @version   2.0
+ * @author    Fuel Development Team
+ * @license   MIT License
+ * @copyright 2010 - 2013 Fuel Development Team
+ * @link      http://fuelphp.com
+ */
+
+namespace Fuel\Validation\Rule;
+
+use Fuel\Validation\AbstractRule;
+
+/**
+ * Validates that a field is a valid IP address. Returns true for both IPv4 and v6.
+ *
+ * @package Fuel\Validation\Rule
+ * @author  Fuel Development Team
+ *
+ * @since 2.0
+ */
+class Mac extends AbstractRule
+{
+
+	/**
+	 * Contains the rule failure message
+	 *
+	 * @var string
+	 */
+	protected $message = 'The field is not a valid MAC address.';
+
+	/**
+	 * Returns true if the given value is a valid MAC address
+	 *
+	 * @param mixed  $value Value to validate
+	 * @param string $field Unused by this rule
+	 * @param array  $allFields Unused by this rule
+	 *
+	 * @return bool
+	 *
+	 * @since 2.0
+	 */
+	public function validate($value, $field = null, $allFields = null)
+	{
+		return (preg_match('/([a-fA-F0-9]{2}[:|\-]?){6}/', $value) == 1);
+	}
+
+}

tests/unit/Rule/MacTest.php

@@ -0,0 +1,45 @@
+<?php
+/**
+ * @package   Fuel\Validation
+ * @version   2.0
+ * @author    Fuel Development Team
+ * @license   MIT License
+ * @copyright 2010 - 2013 Fuel Development Team
+ * @link      http://fuelphp.com
+ */
+
+namespace Fuel\Validation\Rule;
+
+class MacTest extends AbstractRuleTest
+{
+
+	/**
+	 * {@inheritdocs}
+	 */
+	protected $message = 'The field is not a valid MAC address.';
+
+	protected function _before()
+	{
+		$this->object = new Mac;
+	}
+
+	/**
+	 * {@inheritdocs}
+	 */
+	public function validateProvider()
+	{
+		return array(
+			array('000CF15698AD', true),
+			array('00:0C:F1:56:98:AD', true),
+			array('00-0C-F1-56-98-AD', true),
+			array('000Cf15698ad', true),
+			array('00-0c:f1:56-98ad', true),
+			array('CF15698AD', false),
+			array('00:0C:Q1:56:98:AD', false),
+			array('00-0C-F1/56-98-AD', false),
+			array('000Cf15698aq', false),
+			array('0c:f1:56-98ad', false),
+		);
+	}
+
+}