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<?php |
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|
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/* |
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* This file is part of the Symfony package. |
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* |
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* (c) Fabien Potencier <fabien@symfony.com> |
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* |
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* For the full copyright and license information, please view the LICENSE |
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* file that was distributed with this source code. |
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*/ |
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|
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namespace Symfony\Component\CssSelector\XPath\Extension; |
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|
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use Symfony\Component\CssSelector\XPath\XPathExpr; |
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|
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/** |
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* XPath expression translator combination extension. |
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* |
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* This component is a port of the Python cssselect library, |
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* which is copyright Ian Bicking, @see https://github.com/SimonSapin/cssselect. |
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* |
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* @author Jean-François Simon <jeanfrancois.simon@sensiolabs.com> |
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* |
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* @internal |
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*/ |
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class CombinationExtension extends AbstractExtension |
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{ |
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public function getCombinationTranslators(): array |
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{ |
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return [ |
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' ' => $this->translateDescendant(...), |
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'>' => $this->translateChild(...), |
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'+' => $this->translateDirectAdjacent(...), |
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'~' => $this->translateIndirectAdjacent(...), |
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]; |
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} |
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|
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public function translateDescendant(XPathExpr $xpath, XPathExpr $combinedXpath): XPathExpr |
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{ |
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return $xpath->join('/descendant-or-self::*/', $combinedXpath); |
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} |
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|
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public function translateChild(XPathExpr $xpath, XPathExpr $combinedXpath): XPathExpr |
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{ |
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return $xpath->join('/', $combinedXpath); |
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} |
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|
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public function translateDirectAdjacent(XPathExpr $xpath, XPathExpr $combinedXpath): XPathExpr |
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{ |
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return $xpath |
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->join('/following-sibling::', $combinedXpath) |
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->addNameTest() |
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->addCondition('position() = 1'); |
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} |
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|
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public function translateIndirectAdjacent(XPathExpr $xpath, XPathExpr $combinedXpath): XPathExpr |
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{ |
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return $xpath->join('/following-sibling::', $combinedXpath); |
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} |
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|
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public function getName(): string |
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{ |
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return 'combination'; |
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} |
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} |
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|
