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<?php
/**
* Zend Framework (http://framework.zend.com/)
*
* @link http://github.com/zendframework/zf2 for the canonical source repository
* @copyright Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
* @license http://framework.zend.com/license/new-bsd New BSD License
*/
namespace Zend\Validator\Barcode;
class Codabar extends AbstractAdapter
{
/**
* Constructor for this barcode adapter
*/
public function __construct()
{
$this->setLength(-1);
$this->setCharacters('0123456789-$:/.+ABCDTN*E');
$this->useChecksum(false);
}
/**
* Checks for allowed characters
* @see Zend\Validator\Barcode.AbstractAdapter::checkChars()
*/
public function hasValidCharacters($value)
{
if (strpbrk($value, 'ABCD')) {
$first = $value[0];
if (!strpbrk($first, 'ABCD')) {
// Missing start char
return false;
}
$last = substr($value, -1, 1);
if (!strpbrk($last, 'ABCD')) {
// Missing stop char
return false;
}
$value = substr($value, 1, -1);
} elseif (strpbrk($value, 'TN*E')) {
$first = $value[0];
if (!strpbrk($first, 'TN*E')) {
// Missing start char
return false;
}
$last = substr($value, -1, 1);
if (!strpbrk($last, 'TN*E')) {
// Missing stop char
return false;
}
$value = substr($value, 1, -1);
}
$chars = $this->getCharacters();
$this->setCharacters('0123456789-$:/.+');
$result = parent::hasValidCharacters($value);
$this->setCharacters($chars);
return $result;
}
}