File indexing completed on 2024-12-22 05:36:46

0001 <?php
0002 
0003 /**
0004  * Zend Framework
0005  *
0006  * LICENSE
0007  *
0008  * This source file is subject to the new BSD license that is bundled
0009  * with this package in the file LICENSE.txt.
0010  * It is also available through the world-wide-web at this URL:
0011  * http://framework.zend.com/license/new-bsd
0012  * If you did not receive a copy of the license and are unable to
0013  * obtain it through the world-wide-web, please send an email
0014  * to license@zend.com so we can send you a copy immediately.
0015  *
0016  * @category   Zend
0017  * @package    Zend_Gdata
0018  * @subpackage Gdata
0019  * @copyright  Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
0020  * @license    http://framework.zend.com/license/new-bsd     New BSD License
0021  * @version    $Id$
0022  */
0023 
0024 /**
0025  * A wrapper for strings for buffered reading.
0026  *
0027  * @category   Zend
0028  * @package    Zend_Gdata
0029  * @subpackage Gdata
0030  * @copyright  Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
0031  * @license    http://framework.zend.com/license/new-bsd     New BSD License
0032  */
0033 class Zend_Gdata_MimeBodyString
0034 {
0035 
0036     /**
0037      * The source string.
0038      *
0039      * @var string
0040      */
0041     protected $_sourceString = '';
0042 
0043     /**
0044      * The size of the MIME message.
0045      * @var integer
0046      */
0047     protected $_bytesRead = 0;
0048 
0049     /**
0050      * Create a new MimeBodyString object.
0051      *
0052      * @param string $sourceString The string we are wrapping.
0053      */
0054     public function __construct($sourceString)
0055     {
0056         $this->_sourceString = $sourceString;
0057         $this->_bytesRead = 0;
0058     }
0059 
0060     /**
0061      * Read the next chunk of the string.
0062      *
0063      * @param integer $bytesRequested The size of the chunk that is to be read.
0064      * @return string A corresponding piece of the string.
0065      */
0066     public function read($bytesRequested)
0067     {
0068       $len = strlen($this->_sourceString);
0069       if($this->_bytesRead == $len) {
0070           return FALSE;
0071       } else if($bytesRequested > $len - $this->_bytesRead) {
0072           $bytesRequested = $len - $this->_bytesRead;
0073       }
0074 
0075       $buffer = substr($this->_sourceString, $this->_bytesRead, $bytesRequested);
0076       $this->_bytesRead += $bytesRequested;
0077 
0078       return $buffer;
0079     }
0080 
0081     /**
0082      * The length of the string.
0083      *
0084      * @return int The length of the string contained in the object.
0085      */
0086     public function getSize()
0087     {
0088       return strlen($this->_sourceString);
0089     }
0090 
0091 
0092 }