/**
* @param int $lineNumber
*
* @return BlockInterface|mixed|null|string
*/
protected function grabReferences($lineNumber)
{
$content = $this->dataObject->getLine($lineNumber);
// grab urls with title
$content = preg_replace_callback('/\\[(.*)\\]:\\s?(.*)\\s?"(.*)"/U', function ($found) {
$key = trim($found[1]);
$url = trim($found[2]);
$title = trim($found[3]);
$this->dataObject->addReference($key, ['url' => $url, 'title' => $title, 'type' => 'url']);
return '';
}, $content);
// grab urls without title
$content = preg_replace_callback('/\\[(.*)\\]:\\s?(.*)/', function ($found) {
$key = trim($found[1]);
$url = trim($found[2]);
$this->dataObject->addReference($key, ['url' => $url, 'title' => '', 'type' => 'url']);
return '';
}, $content);
return $content;
}
