Exception
2 months ago
Node
2 months ago
Parser
2 months ago
XPath
2 months ago
CssSelectorConverter.php
2 months ago
CssSelectorConverter.php
58 lines
| 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 | namespace ProfilePressVendor\Symfony\Component\CssSelector; |
| 12 | |
| 13 | use ProfilePressVendor\Symfony\Component\CssSelector\Parser\Shortcut\ClassParser; |
| 14 | use ProfilePressVendor\Symfony\Component\CssSelector\Parser\Shortcut\ElementParser; |
| 15 | use ProfilePressVendor\Symfony\Component\CssSelector\Parser\Shortcut\EmptyStringParser; |
| 16 | use ProfilePressVendor\Symfony\Component\CssSelector\Parser\Shortcut\HashParser; |
| 17 | use ProfilePressVendor\Symfony\Component\CssSelector\XPath\Extension\HtmlExtension; |
| 18 | use ProfilePressVendor\Symfony\Component\CssSelector\XPath\Translator; |
| 19 | /** |
| 20 | * CssSelectorConverter is the main entry point of the component and can convert CSS |
| 21 | * selectors to XPath expressions. |
| 22 | * |
| 23 | * @author Christophe Coevoet <stof@notk.org> |
| 24 | */ |
| 25 | class CssSelectorConverter |
| 26 | { |
| 27 | private $translator; |
| 28 | private $cache; |
| 29 | private static $xmlCache = []; |
| 30 | private static $htmlCache = []; |
| 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 | $this->translator = new Translator(); |
| 37 | if ($html) { |
| 38 | $this->translator->registerExtension(new HtmlExtension($this->translator)); |
| 39 | $this->cache =& self::$htmlCache; |
| 40 | } else { |
| 41 | $this->cache =& self::$xmlCache; |
| 42 | } |
| 43 | $this->translator->registerParserShortcut(new EmptyStringParser())->registerParserShortcut(new ElementParser())->registerParserShortcut(new ClassParser())->registerParserShortcut(new HashParser()); |
| 44 | } |
| 45 | /** |
| 46 | * Translates a CSS expression to its XPath equivalent. |
| 47 | * |
| 48 | * Optionally, a prefix can be added to the resulting XPath |
| 49 | * expression with the $prefix parameter. |
| 50 | * |
| 51 | * @return string |
| 52 | */ |
| 53 | public function toXPath(string $cssExpr, string $prefix = 'descendant-or-self::') |
| 54 | { |
| 55 | return $this->cache[$prefix][$cssExpr] ?? $this->cache[$prefix][$cssExpr] = $this->translator->cssToXPath($cssExpr, $prefix); |
| 56 | } |
| 57 | } |
| 58 |