Classes List

Symfony\Component\CssSelector\CssSelectorConverter

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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;

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);
    }
}