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htmlpurifier/library/HTMLPurifier/AttrDef/Multiple.php

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<?php
require_once 'HTMLPurifier/AttrDef.php';
class HTMLPurifier_AttrDef_Multiple extends HTMLPurifier_AttrDef
{
var $single;
var $max;
function HTMLPurifier_AttrDef_Multiple($single, $max = 4) {
$this->single = $single;
$this->max = $max;
}
function validate($string, $config, &$context) {
$string = $this->parseCDATA($string);
if ($string === '') return false;
$parts = explode(' ', $string); // parseCDATA replaced \r, \t and \n
$length = count($parts);
$final = '';
for ($i = 0, $num = 0; $i < $length && $num < $this->max; $i++) {
if (ctype_space($parts[$i])) continue;
$result = $this->single->validate($parts[$i], $config, $context);
if ($result !== false) {
$final .= $result . ' ';
$num++;
}
}
if ($final === '') return false;
return rtrim($final);
}
}
?>