function runFilter(PHPTAL_Dom_Element $el)
{
$f = new PHPTAL_PreFilter_Normalize();
// assertNull checks for "void" functions
$this->assertNull($f->setPHPTAL($this->newPHPTAL()));
$this->assertNull($f->filterDOM($el));
}
/**
* Consistent sorting of attributes might give slightly better gzip performance
*/
protected function normalizeAttributes(PHPTAL_Dom_Element $element)
{
parent::normalizeAttributes($element);
$attrs_by_qname = array();
foreach ($element->getAttributeNodes() as $attrnode) {
// safe, as there can't be two attrs with same qname
$attrs_by_qname[$attrnode->getQualifiedName()] = $attrnode;
}
if (count($attrs_by_qname) > 1) {
uksort($attrs_by_qname, array($this, 'compareQNames'));
$element->setAttributeNodes(array_values($attrs_by_qname));
}
}
