/**
* Invoke filter
* @param string code
* @param WebLoader loader
* @param string file
* @return string
*/
public function __invoke($code, WebLoader $loader, $file = null)
{
// thanks to kravco
$regexp = '~
(?<![a-z])
url\\( ## url(
\\s* ## optional whitespace
([\'"])? ## optional single/double quote
( (?: (?:\\\\.)+ ## escape sequences
| [^\'"\\\\,()\\s]+ ## safe characters
| (?(1) (?!\\1)[\'"\\\\,() \\t] ## allowed special characters
| ^ ## (none, if not quoted)
)
)* ## (greedy match)
)
(?(1)\\1) ## optional single/double quote
\\s* ## optional whitespace
\\) ## )
~xs';
return preg_replace_callback($regexp, function ($matches) use($loader, $file) {
return "url('" . CssUrlsFilter::absolutizeUrl($matches[2], $matches[1], $file, $loader->sourcePath) . "')";
}, $code);
}
function m($matches, $file, $sourcePath)
{
// NDebug::dump($file);
NDebug::dump($matches);
// NDebug::dump($sourcePath);
return "url('" . CssUrlsFilter::absolutizeUrl($matches[2], $matches[1], $file, $sourcePath) . "')";
}