function ClassParser::parse

Overrides ParserInterface::parse

File

vendor/symfony/css-selector/Parser/Shortcut/ClassParser.php, line 31

Class

ClassParser

CSS selector class parser shortcut.

Namespace

Symfony\Component\CssSelector\Parser\Shortcut

Code

public function parse(string $source) : array {
    // Matches an optional namespace, optional element, and required class
    // $source = 'test|input.ab6bd_field';
    // $matches = array (size=4)
    //     0 => string 'test|input.ab6bd_field' (length=22)
    //     1 => string 'test' (length=4)
    //     2 => string 'input' (length=5)
    //     3 => string 'ab6bd_field' (length=11)
    if (preg_match('/^(?:([a-z]++)\\|)?+([\\w-]++|\\*)?+\\.([\\w-]++)$/i', trim($source), $matches)) {
        return [
            new SelectorNode(new ClassNode(new ElementNode($matches[1] ?: null, $matches[2] ?: null), $matches[3])),
        ];
    }
    return [];
}