[5146] | 1 | <?php |
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| 2 | /** |
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| 3 | * Zend Framework |
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| 4 | * |
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| 5 | * LICENSE |
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| 6 | * |
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| 7 | * This source file is subject to the new BSD license that is bundled |
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| 8 | * with this package in the file LICENSE.txt. |
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| 9 | * It is also available through the world-wide-web at this URL: |
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| 10 | * http://framework.zend.com/license/new-bsd |
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| 11 | * If you did not receive a copy of the license and are unable to |
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| 12 | * obtain it through the world-wide-web, please send an email |
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| 13 | * to license@zend.com so we can send you a copy immediately. |
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| 14 | * |
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| 15 | * @category Zend |
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| 16 | * @package Zend_Validate |
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| 17 | * @copyright Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com) |
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| 18 | * @license http://framework.zend.com/license/new-bsd New BSD License |
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| 19 | * @version $Id: Code39.php 20785 2010-01-31 09:43:03Z mikaelkael $ |
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| 20 | */ |
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| 21 | |
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| 22 | /** |
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| 23 | * @see Zend_Validate_Barcode_AdapterAbstract |
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| 24 | */ |
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| 25 | require_once 'Zend/Validate/Barcode/AdapterAbstract.php'; |
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| 26 | |
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| 27 | /** |
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| 28 | * @category Zend |
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| 29 | * @package Zend_Validate |
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| 30 | * @copyright Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com) |
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| 31 | * @license http://framework.zend.com/license/new-bsd New BSD License |
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| 32 | */ |
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| 33 | class Zend_Validate_Barcode_Code39 extends Zend_Validate_Barcode_AdapterAbstract |
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| 34 | { |
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| 35 | /** |
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| 36 | * Allowed barcode lengths |
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| 37 | * @var integer |
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| 38 | */ |
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| 39 | protected $_length = -1; |
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| 40 | |
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| 41 | /** |
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| 42 | * Allowed barcode characters |
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| 43 | * @var string |
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| 44 | */ |
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| 45 | protected $_characters = '0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ -.$/+%'; |
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| 46 | |
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| 47 | /** |
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| 48 | * Checksum function |
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| 49 | * @var string |
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| 50 | */ |
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| 51 | protected $_checksum = '_code39'; |
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| 52 | |
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| 53 | /** |
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| 54 | * @var array |
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| 55 | */ |
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| 56 | protected $_check = array( |
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| 57 | '0' => 0, '1' => 1, '2' => 2, '3' => 3, '4' => 4, '5' => 5, '6' => 6, |
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| 58 | '7' => 7, '8' => 8, '9' => 9, 'A' => 10, 'B' => 11, 'C' => 12, 'D' => 13, |
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| 59 | 'E' => 14, 'F' => 15, 'G' => 16, 'H' => 17, 'I' => 18, 'J' => 19, 'K' => 20, |
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| 60 | 'L' => 21, 'M' => 22, 'N' => 23, 'O' => 24, 'P' => 25, 'Q' => 26, 'R' => 27, |
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| 61 | 'S' => 28, 'T' => 29, 'U' => 30, 'V' => 31, 'W' => 32, 'X' => 33, 'Y' => 34, |
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| 62 | 'Z' => 35, '-' => 36, '.' => 37, ' ' => 38, '$' => 39, '/' => 40, '+' => 41, |
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| 63 | '%' => 42, |
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| 64 | ); |
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| 65 | |
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| 66 | /** |
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| 67 | * Constructor |
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| 68 | * |
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| 69 | * Sets check flag to false. |
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| 70 | * |
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| 71 | * @return void |
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| 72 | */ |
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| 73 | public function __construct() |
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| 74 | { |
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| 75 | $this->setCheck(false); |
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| 76 | } |
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| 77 | |
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| 78 | /** |
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| 79 | * Validates the checksum (Modulo 43) |
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| 80 | * |
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| 81 | * @param string $value The barcode to validate |
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| 82 | * @return boolean |
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| 83 | */ |
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| 84 | protected function _code39($value) |
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| 85 | { |
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| 86 | $checksum = substr($value, -1, 1); |
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| 87 | $value = str_split(substr($value, 0, -1)); |
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| 88 | $count = 0; |
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| 89 | foreach($value as $char) { |
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| 90 | $count += $this->_check[$char]; |
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| 91 | } |
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| 92 | |
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| 93 | $mod = $count % 43; |
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| 94 | if ($mod == $this->_check[$checksum]) { |
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| 95 | return true; |
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| 96 | } |
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| 97 | |
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| 98 | return false; |
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| 99 | } |
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| 100 | } |
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