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