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<?php
namespace Bitrix\Main\PhoneNumber\Tools;
use Bitrix\Main\SystemException;
class PossibleLengthField extends XmlField
{
public function decodeValue($value)
{
return static::parsePossibleLength($value);
}
/**
* Parses possible length field and returns corresponding array of possible lengths.
* @param string $possibleLength Something like "3,5,7", or "[7-9]", or "6,[8-10]"
* @return array Returns array of possible lengths. I.e. [3, 5, 7], or [7, 8, 9], or [6, 8, 10].
*/
public static function parsePossibleLength($possibleLength)
{
$result = array();
$tokens = explode(',', $possibleLength);
foreach ($tokens as $token)
{
if(preg_match('/^\d+$/', $token))
{
$result[] = (int)$token;
}
else if(preg_match('/^\[(\d+)-(\d+)\]$/', $token, $matches))
{
$start = $matches[1];
$end = $matches[2];
$result = array_merge($result, range($start, $end));
}
else
{
throw new SystemException("Unrecognized token: ", $token);
}
}
return $result;
}
}
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