Automattic\WooCommerce\Vendor\Symfony\Component\CssSelector\Parser\Tokenizer

Tokenizer{} │ WC 1.0

CSS selector tokenizer.

This component is a port of the Python cssselect library, which is copyright Ian Bicking, @see https://github.com/SimonSapin/cssselect.

No Hooks.

Usage

$Tokenizer = new Tokenizer();
// use class methods

Methods

1. public __construct()
2. public tokenize(Reader $reader)

Tokenizer{} Tokenizer{} code ^{WC 10.5.0}

class Tokenizer
{
    /**
     * @var Handler\HandlerInterface[]
     */
    private $handlers;

    public function __construct()
    {
        $patterns = new TokenizerPatterns();
        $escaping = new TokenizerEscaping($patterns);

        $this->handlers = [
            new Handler\WhitespaceHandler(),
            new Handler\IdentifierHandler($patterns, $escaping),
            new Handler\HashHandler($patterns, $escaping),
            new Handler\StringHandler($patterns, $escaping),
            new Handler\NumberHandler($patterns),
            new Handler\CommentHandler(),
        ];
    }

    /**
     * Tokenize selector source code.
     */
    public function tokenize(Reader $reader): TokenStream
    {
        $stream = new TokenStream();

        while (!$reader->isEOF()) {
            foreach ($this->handlers as $handler) {
                if ($handler->handle($reader, $stream)) {
                    continue 2;
                }
            }

            $stream->push(new Token(Token::TYPE_DELIMITER, $reader->getSubstring(1), $reader->getPosition()));
            $reader->moveForward(1);
        }

        return $stream
            ->push(new Token(Token::TYPE_FILE_END, null, $reader->getPosition()))
            ->freeze();
    }
}