<?php require_once 'HTMLPurifier/AttrDef.php'; require_once 'HTMLPurifier/AttrDef/Pixels.php'; /** * Validates the HTML type length (not to be confused with CSS's length). * * This accepts integer pixels or percentages as lengths for certain * HTML attributes. Don't use this for CSS: that's * HTMLPurifier_AttrDef_CSSLength which requires prefixes and allows a lot * more different types. */ class HTMLPurifier_AttrDef_Length extends HTMLPurifier_AttrDef_Pixels { 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; $points = substr($string, 0, $length - 1); if (!is_numeric($points)) return false; $points = (int) $points; if ($points < 0) return '0%'; if ($points > 100) return '100%'; return ((string) $points) . '%'; } } ?>