<?php
/**
* @see https://github.com/laminas/laminas-validator for the canonical source repository
* @copyright https://github.com/laminas/laminas-validator/blob/master/COPYRIGHT.md
* @license https://github.com/laminas/laminas-validator/blob/master/LICENSE.md New BSD License
*/
namespace Laminas\Validator\Barcode;
class Royalmail extends AbstractAdapter
{
protected $rows = [
'0' => 1, '1' => 1, '2' => 1, '3' => 1, '4' => 1, '5' => 1,
'6' => 2, '7' => 2, '8' => 2, '9' => 2, 'A' => 2, 'B' => 2,
'C' => 3, 'D' => 3, 'E' => 3, 'F' => 3, 'G' => 3, 'H' => 3,
'I' => 4, 'J' => 4, 'K' => 4, 'L' => 4, 'M' => 4, 'N' => 4,
'O' => 5, 'P' => 5, 'Q' => 5, 'R' => 5, 'S' => 5, 'T' => 5,
'U' => 0, 'V' => 0, 'W' => 0, 'X' => 0, 'Y' => 0, 'Z' => 0,
];
protected $columns = [
'0' => 1, '1' => 2, '2' => 3, '3' => 4, '4' => 5, '5' => 0,
'6' => 1, '7' => 2, '8' => 3, '9' => 4, 'A' => 5, 'B' => 0,
'C' => 1, 'D' => 2, 'E' => 3, 'F' => 4, 'G' => 5, 'H' => 0,
'I' => 1, 'J' => 2, 'K' => 3, 'L' => 4, 'M' => 5, 'N' => 0,
'O' => 1, 'P' => 2, 'Q' => 3, 'R' => 4, 'S' => 5, 'T' => 0,
'U' => 1, 'V' => 2, 'W' => 3, 'X' => 4, 'Y' => 5, 'Z' => 0,
];
/**
* Constructor for this barcode adapter
*/
public function __construct()
{
$this->setLength(-1);
$this->setCharacters('0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ');
$this->setChecksum('royalmail');
}
/**
* Validates the checksum ()
*
* @param string $value The barcode to validate
* @return bool
*/
protected function royalmail($value)
{
$checksum = substr($value, -1, 1);
$values = str_split(substr($value, 0, -1));
$rowvalue = 0;
$colvalue = 0;
foreach ($values as $row) {
$rowvalue += $this->rows[$row];
$colvalue += $this->columns[$row];
}
$rowvalue %= 6;
$colvalue %= 6;
$rowchkvalue = array_keys($this->rows, $rowvalue);
$colchkvalue = array_keys($this->columns, $colvalue);
$intersect = array_intersect($rowchkvalue, $colchkvalue);
$chkvalue = current($intersect);
if ($chkvalue == $checksum) {
return true;
}
return false;
}
/**
* Allows start and stop tag within checked chars
*
* @param string $value The barcode to check for allowed characters
* @return bool
*/
public function hasValidCharacters($value)
{
if ($value[0] == '(') {
$value = substr($value, 1);
if ($value[strlen($value) - 1] == ')') {
$value = substr($value, 0, -1);
} else {
return false;
}
}
return parent::hasValidCharacters($value);
}
}