class EmptyStringParser

CSS selector class parser shortcut.

This shortcut ensure compatibility with previous version.

• The parser fails to parse an empty string.
• In the previous version, an empty string matches each tags.

This component is a port of the Python cssselect library, which is copyright Ian Bicking, @author Jean-François Simon <jeanfrancois.simon@sensiolabs.com>

@internal

Hierarchy

• class \Symfony\Component\CssSelector\Parser\Shortcut\EmptyStringParser implements \Symfony\Component\CssSelector\Parser\ParserInterface

Expanded class hierarchy of EmptyStringParser

See also

https://github.com/SimonSapin/cssselect.

File

vendor/symfony/css-selector/Parser/Shortcut/EmptyStringParser.php, line 32

Namespace

class EmptyStringParser implements ParserInterface {
    public function parse(string $source) : array {
        // Matches an empty string
        if ('' == $source) {
            return [
                new SelectorNode(new ElementNode(null, '*')),
            ];
        }
        return [];
    }

}

Members