/**
* Returns an iterator for the children of a resource.
*
* @param Resource $resource The resource.
*
* @return RegexFilterIterator|Resource[] The iterator.
*/
private function getChildIterator(Resource $resource)
{
$staticPrefix = rtrim($resource->getPath(), '/') . '/';
$regExp = '~^' . preg_quote($staticPrefix, '~') . '[^/]+$~';
return new RegexFilterIterator($regExp, $staticPrefix, new ArrayIterator($this->resources), RegexFilterIterator::FILTER_KEY);
}
