4 * This file is part of the Symfony package.
6 * (c) Fabien Potencier <fabien@symfony.com>
8 * For the full copyright and license information, please view the LICENSE
9 * file that was distributed with this source code.
12 namespace Symfony\Component\CssSelector\XPath\Extension;
14 use Symfony\Component\CssSelector\XPath\XPathExpr;
17 * XPath expression translator combination extension.
19 * This component is a port of the Python cssselect library,
20 * which is copyright Ian Bicking, @see https://github.com/SimonSapin/cssselect.
22 * @author Jean-François Simon <jeanfrancois.simon@sensiolabs.com>
26 class CombinationExtension extends AbstractExtension
31 public function getCombinationTranslators()
34 ' ' => array($this, 'translateDescendant'),
35 '>' => array($this, 'translateChild'),
36 '+' => array($this, 'translateDirectAdjacent'),
37 '~' => array($this, 'translateIndirectAdjacent'),
44 public function translateDescendant(XPathExpr $xpath, XPathExpr $combinedXpath)
46 return $xpath->join('/descendant-or-self::*/', $combinedXpath);
52 public function translateChild(XPathExpr $xpath, XPathExpr $combinedXpath)
54 return $xpath->join('/', $combinedXpath);
60 public function translateDirectAdjacent(XPathExpr $xpath, XPathExpr $combinedXpath)
63 ->join('/following-sibling::', $combinedXpath)
65 ->addCondition('position() = 1');
71 public function translateIndirectAdjacent(XPathExpr $xpath, XPathExpr $combinedXpath)
73 return $xpath->join('/following-sibling::', $combinedXpath);
79 public function getName()