130 lines
2.7 KiB
PHP
130 lines
2.7 KiB
PHP
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<?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 $path;
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private $element;
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private $condition;
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/**
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* @param string $path
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* @param string $element
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* @param string $condition
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* @param bool $starPrefix
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*/
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public function __construct($path = '', $element = '*', $condition = '', $starPrefix = false)
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{
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$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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/**
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* @return string
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*/
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public function getElement()
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{
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return $this->element;
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}
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/**
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* @return $this
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*/
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public function addCondition($condition)
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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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/**
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* @return string
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*/
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public function getCondition()
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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()
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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 $this
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*/
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public function addStarPrefix()
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{
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$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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* @param string $combiner
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* @param XPathExpr $expr
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*
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* @return $this
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*/
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public function join($combiner, self $expr)
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{
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$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 $this;
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}
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/**
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* @return string
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*/
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public function __toString()
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{
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$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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}
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