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<?php /** * Validates the value for the CSS property text-decoration * @note This class could be generalized into a version that acts sort of * like Enum except you can compound the allowed values. */ class HTMLPurifier_AttrDef_CSS_TextDecoration extends HTMLPurifier_AttrDef { /** * @param string $string * @param HTMLPurifier_Config $config * @param HTMLPurifier_Context $context * @return bool|string */ public function validate($string, $config, $context) { static $allowed_values = array( 'line-through' => true, 'overline' => true, 'underline' => true, ); $string = strtolower($this->parseCDATA($string)); if ($string === 'none') { return $string; } $parts = explode(' ', $string); $final = ''; foreach ($parts as $part) { if (isset($allowed_values[$part])) { $final .= $part . ' '; } } $final = rtrim($final); if ($final === '') { return false; } return $final; } } // vim: et sw=4 sts=4