first commit

libraries/joomla/form/rule.php

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+<?php
+/**
+ * @package     Joomla.Platform
+ * @subpackage  Form
+ *
+ * @copyright   Copyright (C) 2005 - 2013 Open Source Matters, Inc. All rights reserved.
+ * @license     GNU General Public License version 2 or later; see LICENSE
+ */
+
+defined('JPATH_PLATFORM') or die;
+
+// Detect if we have full UTF-8 and unicode PCRE support.
+if (!defined('JCOMPAT_UNICODE_PROPERTIES'))
+{
+	define('JCOMPAT_UNICODE_PROPERTIES', (bool) @preg_match('/\pL/u', 'a'));
+}
+
+/**
+ * Form Rule class for the Joomla Platform.
+ *
+ * @package     Joomla.Platform
+ * @subpackage  Form
+ * @since       11.1
+ */
+class JFormRule
+{
+	/**
+	 * The regular expression to use in testing a form field value.
+	 *
+	 * @var    string
+	 * @since  11.1
+	 */
+	protected $regex;
+
+	/**
+	 * The regular expression modifiers to use when testing a form field value.
+	 *
+	 * @var    string
+	 * @since  11.1
+	 */
+	protected $modifiers;
+
+	/**
+	 * Method to test the value.
+	 *
+	 * @param   SimpleXMLElement  $element  The SimpleXMLElement object representing the <field /> tag for the form field object.
+	 * @param   mixed             $value    The form field value to validate.
+	 * @param   string            $group    The field name group control value. This acts as as an array container for the field.
+	 *                                      For example if the field has name="foo" and the group value is set to "bar" then the
+	 *                                      full field name would end up being "bar[foo]".
+	 * @param   JRegistry         $input    An optional JRegistry object with the entire data set to validate against the entire form.
+	 * @param   JForm             $form     The form object for which the field is being tested.
+	 *
+	 * @return  boolean  True if the value is valid, false otherwise.
+	 *
+	 * @since   11.1
+	 * @throws  UnexpectedValueException if rule is invalid.
+	 */
+	public function test(SimpleXMLElement $element, $value, $group = null, JRegistry $input = null, JForm $form = null)
+	{
+		// Check for a valid regex.
+		if (empty($this->regex))
+		{
+			throw new UnexpectedValueException(sprintf('%s has invalid regex.', get_class($this)));
+		}
+
+		// Add unicode property support if available.
+		if (JCOMPAT_UNICODE_PROPERTIES)
+		{
+			$this->modifiers = (strpos($this->modifiers, 'u') !== false) ? $this->modifiers : $this->modifiers . 'u';
+		}
+
+		// Test the value against the regular expression.
+		if (preg_match(chr(1) . $this->regex . chr(1) . $this->modifiers, $value))
+		{
+			return true;
+		}
+
+		return false;
+	}
+}