commonnormalizer.php

См. документацию.

<?
namespace Bitrix\Sale\Location\Normalizer;

class CommonNormalizer implements INormalizer
{
    public function normalize($string)
    {
        $result = $string;
 
        $result = preg_replace('/([^\w\s]|_)/iu', ' ', $result);
 
        $result = preg_replace('/\s+/iu', ' ', (string)$result);
        $result = trim($result);
        $result = mb_strtoupper($result);
        return $result;
    }
}