127 Zeilen
3.9 KiB
PHP
127 Zeilen
3.9 KiB
PHP
<?php
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/* vim: set expandtab tabstop=4 shiftwidth=4 softtabstop=4: */
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/**
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* Write the concatenation of the files in a buffer
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*
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* PHP versions 4 and 5
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330,Boston,MA 02111-1307 USA
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*
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* @category File Formats
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* @package File_Archive
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* @author Vincent Lascaux <vincentlascaux@php.net>
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* @copyright 1997-2005 The PHP Group
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* @license http://www.gnu.org/copyleft/lesser.html LGPL
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* @version CVS: $Id: Memory.php 2 2010-11-23 14:32:26Z oldperl $
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* @link http://pear.php.net/package/File_Archive
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*/
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require_once "File/Archive/Writer.php";
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/**
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* Write the concatenation of the files in a buffer
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*/
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class File_Archive_Writer_Memory extends File_Archive_Writer
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{
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/**
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* @var string $data The buffer
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* @access private
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*/
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var $data = "";
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/**
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* Information about the file being written into this writer
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* @access private
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*/
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var $filename;
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var $stat;
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var $mime;
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/**
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* @param reference $data If provided, the data will be output in this
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* variable. Any existent data in $data will be overwritten by the
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* actual data of the writer. You should not modify manually this
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* variable while using this writer (you can safely use all the
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* functions of the archive, like clear for example)
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* @param int keptData is the offset from where to start writing in $data
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* Any data located after $seek will be erased
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* The default value is 0
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*/
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function File_Archive_Writer_Memory(&$data, $seek = 0)
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{
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$this->data =& $data;
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$this->data = substr($data, 0, $seek);
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}
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function writeData($d) { $this->data .= $d; }
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/**
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* @see File_Archive_Writer::newFile()
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*/
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function newFile($filename, $stat, $mime = "application/octet-stream")
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{
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$this->filename = $filename;
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$this->stat = $stat;
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$this->mime = $mime;
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}
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/**
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* @see File_Archive_Writer::newFileNeedsMIME
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*/
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function newFileNeedsMIME()
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{
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return true;
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}
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/**
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* Retrieve the concatenated data
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* The value is returned by reference for performance problems, but you
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* should not manually modify it
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*
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* @return string buffer
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*/
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function &getData() { return $this->data; }
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/**
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* Clear the buffer
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*/
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function clear() { $this->data = ""; }
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/**
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* Returns true iif the buffer is empty
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*/
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function isEmpty() { return empty($this->data); }
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/**
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* Create a reader from this writer
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*
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* @param string $filename Name of the file provided by the reader
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* @param array $stat Statistics of the file provided by the reader
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* @param string $mime Mime type of the file provided by the reader
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*
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* Any unspecified parameter will be set to the value of the last file
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* written in this writer
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*/
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function makeReader($filename = null, $stat = null, $mime = null)
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{
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require_once "File/Archive/Reader/Memory.php";
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return new File_Archive_Reader_Memory(
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$this->data,
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$filename === null ? $this->filename : $filename,
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$stat === null ? $this->stat : $stat,
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$mime === null ? $this->mime : $mime);
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}
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}
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?>
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