. /** * HTML tidy text filter. * * @package filter * @subpackage tiny * @copyright 2004 Hannes Gassert * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later */ defined('MOODLE_INTERNAL') || die(); // This class looks for text including markup and // applies tidy's repair function to it. // Tidy is a HTML clean and // repair utility, which is currently available for PHP 4.3.x and PHP 5 as a // PECL extension from http://pecl.php.net/package/tidy, in PHP 5 you need only // to compile using the --with-tidy option. // If you don't have the tidy extension installed or don't know, you can enable // or disable this filter, it just won't have any effect. // If you want to know what you can set in $tidyoptions and what their default // values are, see http://php.net/manual/en/function.tidy-get-config.php. class filter_tidy extends moodle_text_filter { function filter($text, array $options = array()) { /// Configuration for tidy. Feel free to tune for your needs, e.g. to allow /// proprietary markup. $tidyoptions = array( 'output-xhtml' => true, 'show-body-only' => true, 'tidy-mark' => false, 'drop-proprietary-attributes' => true, 'drop-font-tags' => true, 'drop-empty-paras' => true, 'indent' => true, 'quiet' => true, ); /// Do a quick check using strpos to avoid unnecessary work if (strpos($text, '<') === false) { return $text; } /// If enabled: run tidy over the entire string if (function_exists('tidy_repair_string')){ $text = tidy_repair_string($text, $tidyoptions, 'utf8'); } return $text; } }