<?php /** * Validates a MultiLength as defined by the HTML spec. * * A multilength is either a integer (pixel count), a percentage, or * a relative number. */ class HTMLPurifier_AttrDef_HTML_MultiLength extends HTMLPurifier_AttrDef_HTML_Length { public function validate($string, $config, $context) { $string = trim($string); if ($string === '') return false; $parent_result = parent::validate($string, $config, $context); if ($parent_result !== false) return $parent_result; $length = strlen($string); $last_char = $string[$length - 1]; if ($last_char !== '*') return false; $int = substr($string, 0, $length - 1); if ($int == '') return '*'; if (!is_numeric($int)) return false; $int = (int) $int; if ($int < 0) return false; if ($int == 0) return '0'; if ($int == 1) return '*'; return ((string) $int) . '*'; } } // vim: et sw=4 sts=4