_test/vendor/symfony/css-selector/XPath/Extension/CombinationExtension.php

   1 <?php
   2
   3 /*
   4  * This file is part of the Symfony package.
   5  *
   6  * (c) Fabien Potencier <fabien@symfony.com>
   7  *
   8  * For the full copyright and license information, please view the LICENSE
   9  * file that was distributed with this source code.
  10  */
  11
  12 namespace Symfony\Component\CssSelector\XPath\Extension;
  13
  14 use Symfony\Component\CssSelector\XPath\XPathExpr;
  15
  16 /**
  17  * XPath expression translator combination extension.
  18  *
  19  * This component is a port of the Python cssselect library,
  20  * which is copyright Ian Bicking, @see https://github.com/SimonSapin/cssselect.
  21  *
  22  * @author Jean-François Simon <jeanfrancois.simon@sensiolabs.com>
  23  *
  24  * @internal
  25  */
  26 class CombinationExtension extends AbstractExtension
  27 {
  28     /**
  29      * {@inheritdoc}
  30      */
  31     public function getCombinationTranslators(): array
  32     {
  33         return [
  34             ' ' => [$this, 'translateDescendant'],
  35             '>' => [$this, 'translateChild'],
  36             '+' => [$this, 'translateDirectAdjacent'],
  37             '~' => [$this, 'translateIndirectAdjacent'],
  38         ];
  39     }
  40
  41     public function translateDescendant(XPathExpr $xpath, XPathExpr $combinedXpath): XPathExpr
  42     {
  43         return $xpath->join('/descendant-or-self::*/', $combinedXpath);
  44     }
  45
  46     public function translateChild(XPathExpr $xpath, XPathExpr $combinedXpath): XPathExpr
  47     {
  48         return $xpath->join('/', $combinedXpath);
  49     }
  50
  51     public function translateDirectAdjacent(XPathExpr $xpath, XPathExpr $combinedXpath): XPathExpr
  52     {
  53         return $xpath
  54             ->join('/following-sibling::', $combinedXpath)
  55             ->addNameTest()
  56             ->addCondition('position() = 1');
  57     }
  58
  59     public function translateIndirectAdjacent(XPathExpr $xpath, XPathExpr $combinedXpath): XPathExpr
  60     {
  61         return $xpath->join('/following-sibling::', $combinedXpath);
  62     }
  63
  64     /**
  65      * {@inheritdoc}
  66      */
  67     public function getName(): string
  68     {
  69         return 'combination';
  70     }
  71 }