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<?php
/**
* Post-transform that performs validation to the name attribute; if
* it is present with an equivalent id attribute, it is passed through;
* otherwise validation is performed.
*/
class HTMLPurifier_AttrTransform_NameSync extends HTMLPurifier_AttrTransform
{
public function __construct()
{
$this->idDef = new HTMLPurifier_AttrDef_HTML_ID();
}
/**
* @param array $attr
* @param HTMLPurifier_Config $config
* @param HTMLPurifier_Context $context
* @return array
*/
public function transform($attr, $config, $context)
{
if (!isset($attr['name'])) {
return $attr;
}
$name = $attr['name'];
if (isset($attr['id']) && $attr['id'] === $name) {
return $attr;
}
$result = $this->idDef->validate($name, $config, $context);
if ($result === false) {
unset($attr['name']);
} else {
$attr['name'] = $result;
}
return $attr;
}
}
// vim: et sw=4 sts=4