interface/modules/zend_modules/library/Zend/Validator/Barcode/Royalmail.php

   1 <?php
   2 /**
   3  * Zend Framework (http://framework.zend.com/)
   4  *
   5  * @link      http://github.com/zendframework/zf2 for the canonical source repository
   6  * @copyright Copyright (c) 2005-2013 Zend Technologies USA Inc. (http://www.zend.com)
   7  * @license   http://framework.zend.com/license/new-bsd New BSD License
   8  */
   9
  10 namespace Zend\Validator\Barcode;
  11
  12 class Royalmail extends AbstractAdapter
  13 {
  14     protected $rows = array(
  15         '0' => 1, '1' => 1, '2' => 1, '3' => 1, '4' => 1, '5' => 1,
  16         '6' => 2, '7' => 2, '8' => 2, '9' => 2, 'A' => 2, 'B' => 2,
  17         'C' => 3, 'D' => 3, 'E' => 3, 'F' => 3, 'G' => 3, 'H' => 3,
  18         'I' => 4, 'J' => 4, 'K' => 4, 'L' => 4, 'M' => 4, 'N' => 4,
  19         'O' => 5, 'P' => 5, 'Q' => 5, 'R' => 5, 'S' => 5, 'T' => 5,
  20         'U' => 0, 'V' => 0, 'W' => 0, 'X' => 0, 'Y' => 0, 'Z' => 0,
  21      );
  22
  23     protected $columns = array(
  24         '0' => 1, '1' => 2, '2' => 3, '3' => 4, '4' => 5, '5' => 0,
  25         '6' => 1, '7' => 2, '8' => 3, '9' => 4, 'A' => 5, 'B' => 0,
  26         'C' => 1, 'D' => 2, 'E' => 3, 'F' => 4, 'G' => 5, 'H' => 0,
  27         'I' => 1, 'J' => 2, 'K' => 3, 'L' => 4, 'M' => 5, 'N' => 0,
  28         'O' => 1, 'P' => 2, 'Q' => 3, 'R' => 4, 'S' => 5, 'T' => 0,
  29         'U' => 1, 'V' => 2, 'W' => 3, 'X' => 4, 'Y' => 5, 'Z' => 0,
  30     );
  31
  32     /**
  33      * Constructor for this barcode adapter
  34      */
  35     public function __construct()
  36     {
  37         $this->setLength(-1);
  38         $this->setCharacters('0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ');
  39         $this->setChecksum('royalmail');
  40     }
  41
  42     /**
  43      * Validates the checksum ()
  44      *
  45      * @param  string $value The barcode to validate
  46      * @return bool
  47      */
  48     protected function royalmail($value)
  49     {
  50         $checksum = substr($value, -1, 1);
  51         $values   = str_split(substr($value, 0, -1));
  52         $rowvalue = 0;
  53         $colvalue = 0;
  54         foreach ($values as $row) {
  55             $rowvalue += $this->rows[$row];
  56             $colvalue += $this->columns[$row];
  57         }
  58
  59         $rowvalue %= 6;
  60         $colvalue %= 6;
  61
  62         $rowchkvalue = array_keys($this->rows, $rowvalue);
  63         $colchkvalue = array_keys($this->columns, $colvalue);
  64         $intersect = array_intersect($rowchkvalue, $colchkvalue);
  65         $chkvalue    = current($intersect);
  66         if ($chkvalue == $checksum) {
  67             return true;
  68         }
  69
  70         return false;
  71     }
  72
  73     /**
  74      * Allows start and stop tag within checked chars
  75      *
  76      * @param  string $value The barcode to check for allowed characters
  77      * @return bool
  78      */
  79     public function hasValidCharacters($value)
  80     {
  81         if ($value[0] == '(') {
  82             $value = substr($value, 1);
  83
  84             if ($value[strlen($value) - 1] == ')') {
  85                 $value = substr($value, 0, -1);
  86             } else {
  87                 return false;
  88             }
  89         }
  90
  91         return parent::hasValidCharacters($value);
  92     }
  93 }