/**
* Replace callback for fix function
*
* @param array $value
* @return string Markup with added IDs
*/
private function fix_callback($value)
{
$sluggifier = new UniqueSluggifier();
if (preg_match('/id/ui', $value[1]) == false) {
if (preg_match('/title/ui', $value[1])) {
$title = preg_replace_callback('/.*title[\\t,\\ ]*?=[\\t,\\ ]*?[\'|"](.*?)[\'|"]/ui', function ($m) {
return $m[1];
}, $value[1]);
return $value[1] . ' id="' . preg_replace('/^[-0-9._:]/', 'N', $sluggifier->slugify($title)) . '">' . $value[3] . '</h';
}
return $value[1] . ' id="' . preg_replace('/^[-0-9._:]/', 'N', $this->CheckUniqId($sluggifier->slugify($value[3]))) . '">' . $value[3] . '</h';
}
return $value[0];
}
/**
* Fix markup
*
* @param string $markup
* @param int $topLevel
* @param int $depth
* @return string Markup with added IDs
* @throws RuntimeException
*/
public function fix($markup, $topLevel = 1, $depth = 6)
{
if (!$this->isFullHtmlDocument($markup)) {
$partialID = 'toc_generator_' . mt_rand(1000, 4000);
$markup = sprintf("<body id='%s'>%s</body>", $partialID, $markup);
}
$domDocument = $this->htmlParser->loadHTML($markup);
$domDocument->preserveWhiteSpace = true;
// do not clobber whitespace
$sluggifier = new UniqueSluggifier();
/** @var \DOMElement $node */
foreach ($this->traverseHeaderTags($domDocument, $topLevel, $depth) as $node) {
if ($node->getAttribute('id')) {
continue;
}
$node->setAttribute('id', $sluggifier->slugify($node->getAttribute('title') ?: $node->textContent));
}
return $this->htmlParser->saveHTML(isset($partialID) ? $domDocument->getElementById($partialID)->childNodes : $domDocument);
}
