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<?php
/**
* Copyright (c) 2003 Danilo Segan <danilo@kvota.net>.
*
* This file is part of PHP-gettext.
*
* PHP-gettext is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* PHP-gettext is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with PHP-gettext; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* @copyright © 2004-2006 The SquirrelMail Project Team
* @license http://opensource.org/licenses/gpl-license.php GNU Public License
* @version $Id: streams.class.php,v 1.5 2006/01/23 18:39:32 tokul Exp $
* @package squirrelmail
* @subpackage i18n
*/
/**
* Class that is used to read .mo files.
* @package squirrelmail
* @subpackage i18n
*/
class FileReader {
/**
* Current position in file
* @var integer
*/
var $_pos;
/**
* File descriptor
* @var resource
*/
var $_fd;
/**
* File size
* @var integer
*/
var $_length;
/**
* contains error codes
*
* 2 = File doesn't exist
* 3 = Can't read file
* @var integer
*/
var $error=0;
/**
* reads translation file and fills translation input object properties
* @param string $filename path to file
* @return boolean false there is a problem with $filename
*/
function FileReader($filename) {
// disable stat warnings for unreadable directories
if (@file_exists($filename)) {
$this->_length=filesize($filename);
$this->_pos = 0;
$this->_fd = fopen($filename,'rb');
if (!$this->_fd) {
$this->error = 3; // Cannot read file, probably permissions
return false;
}
} else {
$this->error = 2; // File doesn't exist
return false;
}
}
/**
* reads data from current position
* @param integer $bytes number of bytes to read
* @return string read data
*/
function read($bytes) {
fseek($this->_fd, $this->_pos);
$data = fread($this->_fd, $bytes);
$this->_pos = ftell($this->_fd);
return $data;
}
/**
* Moves to defined position in a file
* @param integer $pos position
* @return integer current position
*/
function seekto($pos) {
fseek($this->_fd, $pos);
$this->_pos = ftell($this->_fd);
return $this->_pos;
}
/**
* return current position
* @return integer current position
*/
function currentpos() {
return $this->_pos;
}
/**
* return file length
* @return integer file length
*/
function length() {
return $this->_length;
}
/**
* close translation file
*/
function close() {
fclose($this->_fd);
}
}
?>
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