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File Content: `Isbn.php`

<?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) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
 * @license    http://framework.zend.com/license/new-bsd     New BSD License
 * @version    $Id$
 */

/**
 * @see Zend_Validate_Abstract
 */
;// require_once 'Zend/Validate/Abstract.php';

/**
 * @category   Zend
 * @package    Zend_Validate
 * @copyright  Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
 * @license    http://framework.zend.com/license/new-bsd     New BSD License
 */
class Zend_Validate_Isbn extends Zend_Validate_Abstract
{
    const AUTO    = 'auto';
    const ISBN10  = '10';
    const ISBN13  = '13';
    const INVALID = 'isbnInvalid';
    const NO_ISBN = 'isbnNoIsbn';

    /**
     * Validation failure message template definitions.
     *
     * @var array
     */
    protected $_messageTemplates = array(
        self::INVALID => "Invalid type given. String or integer expected",
        self::NO_ISBN => "'%value%' is not a valid ISBN number",
    );

    /**
     * Allowed type.
     *
     * @var string
     */
    protected $_type = self::AUTO;

    /**
     * Separator character.
     *
     * @var string
     */
    protected $_separator = '';

    /**
     * Set up options.
     *
     * @param  Zend_Config|array $options
     * @throws Zend_Validate_Exception When $options is not valid
     */
    public function __construct($options = array())
    {
        // prepare options
        if ($options instanceof Zend_Config) {
            $options = $options->toArray();
        }
        if (!is_array($options)) {
            /**
             * @see Zend_Validate_Exception
             */
            ;// require_once 'Zend/Validate/Exception.php';
            throw new Zend_Validate_Exception('Invalid options provided.');
        }

        // set type
        if (array_key_exists('type', $options)) {
            $this->setType($options['type']);
        }

        // set separator
        if (array_key_exists('separator', $options)) {
            $this->setSeparator($options['separator']);
        }
    }

    /**
     * Detect input format.
     *
     * @return string
     */
    protected function _detectFormat()
    {
        // prepare separator and pattern list
        $sep      = quotemeta($this->_separator);
        $patterns = array();
        $lengths  = array();

        // check for ISBN-10
        if ($this->_type == self::ISBN10 || $this->_type == self::AUTO) {
            if (empty($sep)) {
                $pattern = '/^[0-9]{9}[0-9X]{1}$/';
                $length  = 10;
            } else {
                $pattern = "/^[0-9]{1,7}[{$sep}]{1}[0-9]{1,7}[{$sep}]{1}[0-9]{1,7}[{$sep}]{1}[0-9X]{1}$/";
                $length  = 13;
            }

            $patterns[$pattern] = self::ISBN10;
            $lengths[$pattern]  = $length;
        }

        // check for ISBN-13
        if ($this->_type == self::ISBN13 || $this->_type == self::AUTO) {
            if (empty($sep)) {
                $pattern = '/^[0-9]{13}$/';
                $length  = 13;
            } else {
                $pattern = "/^[0-9]{1,9}[{$sep}]{1}[0-9]{1,5}[{$sep}]{1}[0-9]{1,9}[{$sep}]{1}[0-9]{1,9}[{$sep}]{1}[0-9]{1}$/";
                $length  = 17;
            }

            $patterns[$pattern] = self::ISBN13;
            $lengths[$pattern]  = $length;
        }

        // check pattern list
        foreach ($patterns as $pattern => $type) {
            if ((strlen($this->_value) == $lengths[$pattern]) && preg_match($pattern, $this->_value)) {
                return $type;
            }
        }

        return null;
    }

    /**
     * Defined by Zend_Validate_Interface.
     *
     * Returns true if and only if $value is a valid ISBN.
     *
     * @param  string $value
     * @return boolean
     */
    public function isValid($value)
    {
        if (!is_string($value) && !is_int($value)) {
            $this->_error(self::INVALID);
            return false;
        }

        $value = (string) $value;
        $this->_setValue($value);

        switch ($this->_detectFormat()) {
            case self::ISBN10:
                // sum
                $isbn10 = str_replace($this->_separator, '', $value);
                $sum    = 0;
                for ($i = 0; $i < 9; $i++) {
                    $sum += (10 - $i) * $isbn10[$i];
                }

                // checksum
                $checksum = 11 - ($sum % 11);
                if ($checksum == 11) {
                    $checksum = '0';
                } elseif ($checksum == 10) {
                    $checksum = 'X';
                }
                break;

            case self::ISBN13:
                // sum
                $isbn13 = str_replace($this->_separator, '', $value);
                $sum    = 0;
                for ($i = 0; $i < 12; $i++) {
                    if ($i % 2 == 0) {
                        $sum += $isbn13[$i];
                    } else {
                        $sum += 3 * $isbn13[$i];
                    }
                }
                // checksum
                $checksum = 10 - ($sum % 10);
                if ($checksum == 10) {
                    $checksum = '0';
                }
                break;

            default:
                $this->_error(self::NO_ISBN);
                return false;
        }

        // validate
        if (substr($this->_value, -1) != $checksum) {
            $this->_error(self::NO_ISBN);
            return false;
        }
        return true;
    }

    /**
     * Set separator characters.
     *
     * It is allowed only empty string, hyphen and space.
     *
     * @param  string $separator
     * @throws Zend_Validate_Exception When $separator is not valid
     * @return Zend_Validate_Isbn Provides a fluent interface
     */
    public function setSeparator($separator)
    {
        // check separator
        if (!in_array($separator, array('-', ' ', ''))) {
            /**
             * @see Zend_Validate_Exception
             */
            ;// require_once 'Zend/Validate/Exception.php';
            throw new Zend_Validate_Exception('Invalid ISBN separator.');
        }

        $this->_separator = $separator;
        return $this;
    }

    /**
     * Get separator characters.
     *
     * @return string
     */
    public function getSeparator()
    {
        return $this->_separator;
    }

    /**
     * Set allowed ISBN type.
     *
     * @param  string $type
     * @throws Zend_Validate_Exception When $type is not valid
     * @return Zend_Validate_Isbn Provides a fluent interface
     */
    public function setType($type)
    {
        // check type
        if (!in_array($type, array(self::AUTO, self::ISBN10, self::ISBN13))) {
            /**
             * @see Zend_Validate_Exception
             */
            ;// require_once 'Zend/Validate/Exception.php';
            throw new Zend_Validate_Exception('Invalid ISBN type');
        }

        $this->_type = $type;
        return $this;
    }

    /**
     * Get allowed ISBN type.
     *
     * @return string
     */
    public function getType()
    {
        return $this->_type;
    }
}

Name	Size	Permission
Barcode	---	0755
Db	---	0755
File	---	0755
Hostname	---	0755
Ldap	---	0755
Sitemap	---	0755
Abstract.php	13038 bytes	0644
Alnum.php	4057 bytes	0644
Alpha.php	3963 bytes	0644
Barcode.php	6294 bytes	0644
Between.php	5672 bytes	0644
Callback.php	4427 bytes	0644
Ccnum.php	3100 bytes	0644
CreditCard.php	10132 bytes	0644
Date.php	7658 bytes	0644
Digits.php	2593 bytes	0644
EmailAddress.php	17870 bytes	0644
Exception.php	1051 bytes	0644
Float.php	3500 bytes	0644
GreaterThan.php	2869 bytes	0644
Hex.php	1995 bytes	0644
Hostname.php	58347 bytes	0644
Iban.php	8834 bytes	0644
Identical.php	4028 bytes	0644
InArray.php	5281 bytes	0644
Int.php	4001 bytes	0644
Interface.php	1877 bytes	0644
Ip.php	5510 bytes	0644
Isbn.php	7659 bytes	0644
LessThan.php	2842 bytes	0644
NotEmpty.php	8092 bytes	0644
PostCode.php	5984 bytes	0644
Regex.php	3959 bytes	0644
StringLength.php	6981 bytes	0644

File Content: Isbn.php

File Content: `Isbn.php`