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<?php declare(strict_types=1);
namespace Stratadox\Parser\Helpers;
use Stratadox\Parser\Parser;
use Stratadox\Parser\Parsers\FullyMap;
use Stratadox\Parser\Result;
use Stratadox\Parser\Results\Error;
use function array_slice;
use function count;
use function implode;
/**
* AtMost
*
* Refuses array results with more than x entries.
*/
final class AtMost
{
public static function results(int $n, Parser $parser): Parser
return FullyMap::the($parser, fn(Result $result) => count($result->data()) > $n ?
Error::in(implode(array_slice($result->data(), $n)) . $result->unparsed()) :
$result
);
}
Stratadox /
Parser
