Mercurial > hg > isophonics-drupal-site
diff vendor/symfony/css-selector/CssSelectorConverter.php @ 0:4c8ae668cc8c
Initial import (non-working)
author | Chris Cannam |
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date | Wed, 29 Nov 2017 16:09:58 +0000 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/vendor/symfony/css-selector/CssSelectorConverter.php Wed Nov 29 16:09:58 2017 +0000 @@ -0,0 +1,65 @@ +<?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; + +use Symfony\Component\CssSelector\Parser\Shortcut\ClassParser; +use Symfony\Component\CssSelector\Parser\Shortcut\ElementParser; +use Symfony\Component\CssSelector\Parser\Shortcut\EmptyStringParser; +use Symfony\Component\CssSelector\Parser\Shortcut\HashParser; +use Symfony\Component\CssSelector\XPath\Extension\HtmlExtension; +use Symfony\Component\CssSelector\XPath\Translator; + +/** + * CssSelectorConverter is the main entry point of the component and can convert CSS + * selectors to XPath expressions. + * + * @author Christophe Coevoet <stof@notk.org> + */ +class CssSelectorConverter +{ + private $translator; + + /** + * @param bool $html Whether HTML support should be enabled. Disable it for XML documents + */ + public function __construct($html = true) + { + $this->translator = new Translator(); + + if ($html) { + $this->translator->registerExtension(new HtmlExtension($this->translator)); + } + + $this->translator + ->registerParserShortcut(new EmptyStringParser()) + ->registerParserShortcut(new ElementParser()) + ->registerParserShortcut(new ClassParser()) + ->registerParserShortcut(new HashParser()) + ; + } + + /** + * Translates a CSS expression to its XPath equivalent. + * + * Optionally, a prefix can be added to the resulting XPath + * expression with the $prefix parameter. + * + * @param string $cssExpr The CSS expression + * @param string $prefix An optional prefix for the XPath expression + * + * @return string + */ + public function toXPath($cssExpr, $prefix = 'descendant-or-self::') + { + return $this->translator->cssToXPath($cssExpr, $prefix); + } +}