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<?php /* * This file is part of the Symfony package. * * (c) Fabien Potencier <fabien@symfony.com> * * For the full copyright and license information, please view the LICENSE * file that was distributed with this source code. */ namespace Symfony\Component\CssSelector\XPath; /** * XPath expression translator interface. * * This component is a port of the Python cssselect library, * which is copyright Ian Bicking, @see https://github.com/SimonSapin/cssselect. * * @author Jean-François Simon <jeanfrancois.simon@sensiolabs.com> * * @internal */ class XPathExpr { private string $path; private string $element; private string $condition; public function __construct(string $path = '', string $element = '*', string $condition = '', bool $starPrefix = false) { $this->path = $path; $this->element = $element; $this->condition = $condition; if ($starPrefix) { $this->addStarPrefix(); } } public function getElement(): string { return $this->element; } /** * @return $this */ public function addCondition(string $condition): static { $this->condition = $this->condition ? sprintf('(%s) and (%s)', $this->condition, $condition) : $condition; return $this; } public function getCondition(): string { return $this->condition; } /** * @return $this */ public function addNameTest(): static { if ('*' !== $this->element) { $this->addCondition('name() = '.Translator::getXpathLiteral($this->element)); $this->element = '*'; } return $this; } /** * @return $this */ public function addStarPrefix(): static { $this->path .= '*/'; return $this; } /** * Joins another XPathExpr with a combiner. * * @return $this */ public function join(string $combiner, self $expr): static { $path = $this->__toString().$combiner; if ('*/' !== $expr->path) { $path .= $expr->path; } $this->path = $path; $this->element = $expr->element; $this->condition = $expr->condition; return $this; } public function __toString(): string { $path = $this->path.$this->element; $condition = null === $this->condition || '' === $this->condition ? '' : '['.$this->condition.']'; return $path.$condition; } }