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Alnum.php
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Alnum.php
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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) 2005-2012 Zend Technologies USA Inc. (http://www.zend.com)
* @license http://framework.zend.com/license/new-bsd New BSD License
* @package Zend_I18n
*/
namespace Zend\I18n\Validator;
use Zend\I18n\Filter\Alnum as AlnumFilter;
use Zend\Validator\AbstractValidator;
/**
* @category Zend
* @package Zend_I18n
* @subpackage Validator
*/
class Alnum extends AbstractValidator
{
const INVALID = 'alnumInvalid';
const NOT_ALNUM = 'notAlnum';
const STRING_EMPTY = 'alnumStringEmpty';
/**
* Alphanumeric filter used for validation
*
* @var AlnumFilter
*/
protected static $filter = null;
/**
* Validation failure message template definitions
*
* @var array
*/
protected $messageTemplates = array(
self::INVALID => "Invalid type given. String, integer or float expected",
self::NOT_ALNUM => "The input contains characters which are non alphabetic and no digits",
self::STRING_EMPTY => "The input is an empty string",
);
/**
* Options for this validator
*
* @var array
*/
protected $options = array(
'allowWhiteSpace' => false, // Whether to allow white space characters; off by default
);
/**
* Sets default option values for this instance
*
* @param bool $allowWhiteSpace
*/
public function __construct($allowWhiteSpace = false)
{
$options = is_array($allowWhiteSpace) ? $allowWhiteSpace : null;
parent::__construct($options);
if (is_scalar($allowWhiteSpace)) {
$this->options['allowWhiteSpace'] = (boolean) $allowWhiteSpace;
}
}
/**
* Returns the allowWhiteSpace option
*
* @return boolean
*/
public function getAllowWhiteSpace()
{
return $this->options['allowWhiteSpace'];
}
/**
* Sets the allowWhiteSpace option
*
* @param boolean $allowWhiteSpace
* @return AlnumFilter Provides a fluent interface
*/
public function setAllowWhiteSpace($allowWhiteSpace)
{
$this->options['allowWhiteSpace'] = (boolean) $allowWhiteSpace;
return $this;
}
/**
* Returns true if and only if $value contains only alphabetic and digit characters
*
* @param string $value
* @return boolean
*/
public function isValid($value)
{
if (!is_string($value) && !is_int($value) && !is_float($value)) {
$this->error(self::INVALID);
return false;
}
$this->setValue($value);
if ('' === $value) {
$this->error(self::STRING_EMPTY);
return false;
}
if (null === self::$filter) {
self::$filter = new AlnumFilter();
}
self::$filter->setAllowWhiteSpace($this->options['allowWhiteSpace']);
if ($value != self::$filter->filter($value)) {
$this->error(self::NOT_ALNUM);
return false;
}
return true;
}
}