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<?php declare(strict_types=1);
namespace AlecRabbit\Spinner\Core;
use AlecRabbit\Spinner\Settings\Contracts\Defaults;
use function AlecRabbit\Helpers\wcswidth;
class Calculator
{
/**
* @param array $strings
* @return int
*/
public static function computeErasingWidths(array $strings): int
if (empty($strings)) {
return 0;
}
$lengths = [];
foreach ($strings as $key => $string) {
$length = self::computeErasingWidth($string);
$lengths[] = $length;
$strings[$key] = [$length, $string];
if (1 !== count(array_unique($lengths))) {
// dump($strings);
throw new \InvalidArgumentException('Strings have different erasing lengths.');
return $lengths[0];
* @param null|string $in
public static function computeErasingWidth(?string $in): int
if (null === $in || Defaults::EMPTY_STRING === $in) {
$in = Strip::controlCodes($in);
return wcswidth($in);
alecrabbit /
php-console-spinner
