_test/vendor/symfony/css-selector/CssSelectorConverter.php

   1 <?php
   2
   3 /*
   4  * This file is part of the Symfony package.
   5  *
   6  * (c) Fabien Potencier <fabien@symfony.com>
   7  *
   8  * For the full copyright and license information, please view the LICENSE
   9  * file that was distributed with this source code.
  10  */
  11
  12 namespace Symfony\Component\CssSelector;
  13
  14 use Symfony\Component\CssSelector\Parser\Shortcut\ClassParser;
  15 use Symfony\Component\CssSelector\Parser\Shortcut\ElementParser;
  16 use Symfony\Component\CssSelector\Parser\Shortcut\EmptyStringParser;
  17 use Symfony\Component\CssSelector\Parser\Shortcut\HashParser;
  18 use Symfony\Component\CssSelector\XPath\Extension\HtmlExtension;
  19 use Symfony\Component\CssSelector\XPath\Translator;
  20
  21 /**
  22  * CssSelectorConverter is the main entry point of the component and can convert CSS
  23  * selectors to XPath expressions.
  24  *
  25  * @author Christophe Coevoet <stof@notk.org>
  26  */
  27 class CssSelectorConverter
  28 {
  29     private $translator;
  30
  31     /**
  32      * @param bool $html Whether HTML support should be enabled. Disable it for XML documents
  33      */
  34     public function __construct(bool $html = true)
  35     {
  36         $this->translator = new Translator();
  37
  38         if ($html) {
  39             $this->translator->registerExtension(new HtmlExtension($this->translator));
  40         }
  41
  42         $this->translator
  43             ->registerParserShortcut(new EmptyStringParser())
  44             ->registerParserShortcut(new ElementParser())
  45             ->registerParserShortcut(new ClassParser())
  46             ->registerParserShortcut(new HashParser())
  47         ;
  48     }
  49
  50     /**
  51      * Translates a CSS expression to its XPath equivalent.
  52      *
  53      * Optionally, a prefix can be added to the resulting XPath
  54      * expression with the $prefix parameter.
  55      *
  56      * @param string $cssExpr The CSS expression
  57      * @param string $prefix  An optional prefix for the XPath expression
  58      *
  59      * @return string
  60      */
  61     public function toXPath($cssExpr, $prefix = 'descendant-or-self::')
  62     {
  63         return $this->translator->cssToXPath($cssExpr, $prefix);
  64     }
  65 }