/home/ezyang/Dev/htmlpurifier/library/HTMLPurifier/AttrDef/CSS/TextDecoration.php

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<?php

class HTMLPurifier_AttrDef_CSS_TextDecoration extends HTMLPurifier_AttrDef
{

    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