<?php
namespace Symfony\Component\CssSelector\XPath\Extension;
use Symfony\Component\CssSelector\XPath\XPathExpr;
class CombinationExtension extends AbstractExtension
{
public function getCombinationTranslators(): array
{
return [
' ' => $this->translateDescendant(...),
'>' => $this->translateChild(...),
'+' => $this->translateDirectAdjacent(...),
'~' => $this->translateIndirectAdjacent(...),
];
}
public function translateDescendant(XPathExpr $xpath, XPathExpr $combinedXpath): XPathExpr
{
return $xpath->join('/descendant-or-self::*/', $combinedXpath);
}
public function translateChild(XPathExpr $xpath, XPathExpr $combinedXpath): XPathExpr
{
return $xpath->join('/', $combinedXpath);
}
public function translateDirectAdjacent(XPathExpr $xpath, XPathExpr $combinedXpath): XPathExpr
{
return $xpath
->join('/following-sibling::', $combinedXpath)
->addNameTest()
->addCondition('position() = 1');
}
public function translateIndirectAdjacent(XPathExpr $xpath, XPathExpr $combinedXpath): XPathExpr
{
return $xpath->join('/following-sibling::', $combinedXpath);
}
public function getName(): string
{
return 'combination';
}
}