CommunityID/libs/Zend/Pdf/Element/String/Binary.php

112 lines
2.9 KiB
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_Pdf
* @copyright Copyright (c) 2005-2009 Zend Technologies USA Inc. (http://www.zend.com)
* @license http://framework.zend.com/license/new-bsd New BSD License
* @version $Id: Binary.php 16541 2009-07-07 06:59:03Z bkarwin $
*/
/** Zend_Pdf_Element_String */
require_once 'Zend/Pdf/Element/String.php';
/**
* PDF file 'binary string' element implementation
*
* @category Zend
* @package Zend_Pdf
* @copyright Copyright (c) 2005-2009 Zend Technologies USA Inc. (http://www.zend.com)
* @license http://framework.zend.com/license/new-bsd New BSD License
*/
class Zend_Pdf_Element_String_Binary extends Zend_Pdf_Element_String
{
/**
* Object value
*
* @var string
*/
public $value;
/**
* Escape string according to the PDF rules
*
* @param string $inStr
* @return string
*/
public static function escape($inStr)
{
$outStr = '';
for ($count = 0; $count < strlen($inStr); $count++) {
$outStr .= sprintf('%02X', ord($inStr[$count]));
}
return $outStr;
}
/**
* Unescape string according to the PDF rules
*
* @param string $inStr
* @return string
*/
public static function unescape($inStr)
{
$outStr = '';
$nextHexCode = '';
for ($count = 0; $count < strlen($inStr); $count++) {
$nextCharCode = ord($inStr[$count]);
if( ($nextCharCode >= 48 /*'0'*/ &&
$nextCharCode <= 57 /*'9'*/ ) ||
($nextCharCode >= 97 /*'a'*/ &&
$nextCharCode <= 102 /*'f'*/ ) ||
($nextCharCode >= 65 /*'A'*/ &&
$nextCharCode <= 70 /*'F'*/ ) ) {
$nextHexCode .= $inStr[$count];
}
if (strlen($nextHexCode) == 2) {
$outStr .= chr(intval($nextHexCode, 16));
$nextHexCode = '';
}
}
if ($nextHexCode != '') {
// We have odd number of digits.
// Final digit is assumed to be '0'
$outStr .= chr(base_convert($nextHexCode . '0', 16, 10));
}
return $outStr;
}
/**
* Return object as string
*
* @param Zend_Pdf_Factory $factory
* @return string
*/
public function toString($factory = null)
{
return '<' . self::escape((string)$this->value) . '>';
}
}