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Revision Autor Zeilennr. Zeile
148 lars 1 
<?php
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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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namespace Symfony\Component\CssSelector\XPath;
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/**
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 * XPath expression translator interface.
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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 XPathExpr
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{
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    private string $path;
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    private string $element;
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    private string $condition;
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    public function __construct(string $path = '', string $element = '*', string $condition = '', bool $starPrefix = false)
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    {
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        $this->path = $path;
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        $this->element = $element;
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        $this->condition = $condition;
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        if ($starPrefix) {
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            $this->addStarPrefix();
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        }
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    }
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    public function getElement(): string
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    {
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        return $this->element;
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    }
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    /**
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     * @return $this
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     */
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    public function addCondition(string $condition): static
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    {
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        $this->condition = $this->condition ? sprintf('(%s) and (%s)', $this->condition, $condition) : $condition;
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        return $this;
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    }
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    public function getCondition(): string
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    {
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        return $this->condition;
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    }
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    /**
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     * @return $this
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     */
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    public function addNameTest(): static
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    {
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        if ('*' !== $this->element) {
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            $this->addCondition('name() = '.Translator::getXpathLiteral($this->element));
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            $this->element = '*';
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        }
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        return $this;
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    }
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    /**
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     * @return $this
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     */
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    public function addStarPrefix(): static
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    {
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        $this->path .= '*/';
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        return $this;
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    }
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    /**
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     * Joins another XPathExpr with a combiner.
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     *
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     * @return $this
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     */
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    public function join(string $combiner, self $expr): static
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    {
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        $path = $this->__toString().$combiner;
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        if ('*/' !== $expr->path) {
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            $path .= $expr->path;
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        }
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        $this->path = $path;
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        $this->element = $expr->element;
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        $this->condition = $expr->condition;
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        return $this;
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    }
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    public function __toString(): string
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    {
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        $path = $this->path.$this->element;
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        $condition = null === $this->condition || '' === $this->condition ? '' : '['.$this->condition.']';
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        return $path.$condition;
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    }
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}