public function filterDump(AssetInterface $asset)
{
$this->root = $asset->getSourceRoot() . '/';
$this->file = $asset->getSourcePath();
$this->base = $this->getRelativePath($this->paths, $this->root);
$content = $this->filterReferences($asset->getContent(), array($this, 'url_matcher'));
$asset->setContent($content);
}