<?php
	/**
	 * Joomla! Content Management System
	 *
	 * @copyright  Copyright (C) 2005 - 2019 Open Source Matters, Inc. All rights reserved.
	 * @license    GNU General Public License version 2 or later; see LICENSE.txt
	 */

	namespace Joomla\Component\Formea\Administrator\Rule;

	defined('JPATH_PLATFORM') or die;

	use Joomla\CMS\Form\FormRule;

	/**
	 * Form Rule class for the Joomla Platform.
	 *
	 * @since  1.7.0
	 */
	class LetterRule extends FormRule
	{
		/**
		 * The regular expression to use in testing a form field value.
		 *
		 * @var    string
		 * @since  1.0.0
		 */
		protected $regex = '^([a-z]+)$';

		/**
		 * The regular expression modifiers to use when testing a form field value.
		 *
		 * @var    string
		 * @since  1.0.0
		 */
		protected $modifiers = 'i';
	}
