Файл: library/Zend/Validate/Barcode/Code39.php
Строк: 71
<?php
/**
* Zend Framework
*
* LICENSE
*
* This source file is subject to the new BSD license that is bundled
* with this package in the file LICENSE.txt.
* It is also available through the world-wide-web at this URL:
* http://framework.zend.com/license/new-bsd
* If you did not receive a copy of the license and are unable to
* obtain it through the world-wide-web, please send an email
* to license@zend.com so we can send you a copy immediately.
*
* @category Zend
* @package Zend_Validate
* @copyright Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
* @license http://framework.zend.com/license/new-bsd New BSD License
* @version $Id: Code39.php 20785 2010-01-31 09:43:03Z mikaelkael $
*/
/**
* @see Zend_Validate_Barcode_AdapterAbstract
*/
require_once 'Zend/Validate/Barcode/AdapterAbstract.php';
/**
* @category Zend
* @package Zend_Validate
* @copyright Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
* @license http://framework.zend.com/license/new-bsd New BSD License
*/
class Zend_Validate_Barcode_Code39 extends Zend_Validate_Barcode_AdapterAbstract
{
/**
* Allowed barcode lengths
* @var integer
*/
protected $_length = -1;
/**
* Allowed barcode characters
* @var string
*/
protected $_characters = '0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ -.$/+%';
/**
* Checksum function
* @var string
*/
protected $_checksum = '_code39';
/**
* @var array
*/
protected $_check = array(
'0' => 0, '1' => 1, '2' => 2, '3' => 3, '4' => 4, '5' => 5, '6' => 6,
'7' => 7, '8' => 8, '9' => 9, 'A' => 10, 'B' => 11, 'C' => 12, 'D' => 13,
'E' => 14, 'F' => 15, 'G' => 16, 'H' => 17, 'I' => 18, 'J' => 19, 'K' => 20,
'L' => 21, 'M' => 22, 'N' => 23, 'O' => 24, 'P' => 25, 'Q' => 26, 'R' => 27,
'S' => 28, 'T' => 29, 'U' => 30, 'V' => 31, 'W' => 32, 'X' => 33, 'Y' => 34,
'Z' => 35, '-' => 36, '.' => 37, ' ' => 38, '$' => 39, '/' => 40, '+' => 41,
'%' => 42,
);
/**
* Constructor
*
* Sets check flag to false.
*
* @return void
*/
public function __construct()
{
$this->setCheck(false);
}
/**
* Validates the checksum (Modulo 43)
*
* @param string $value The barcode to validate
* @return boolean
*/
protected function _code39($value)
{
$checksum = substr($value, -1, 1);
$value = str_split(substr($value, 0, -1));
$count = 0;
foreach($value as $char) {
$count += $this->_check[$char];
}
$mod = $count % 43;
if ($mod == $this->_check[$checksum]) {
return true;
}
return false;
}
}