| 1 | <?php |
| 2 | |
| 3 | /** |
| 4 | * Copyright (c) 2003 Danilo Segan <danilo@kvota.net>. |
| 5 | * |
| 6 | * This file is part of PHP-gettext. |
| 7 | * |
| 8 | * PHP-gettext is free software; you can redistribute it and/or modify |
| 9 | * it under the terms of the GNU General Public License as published by |
| 10 | * the Free Software Foundation; either version 2 of the License, or |
| 11 | * (at your option) any later version. |
| 12 | * |
| 13 | * PHP-gettext is distributed in the hope that it will be useful, |
| 14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 16 | * GNU General Public License for more details. |
| 17 | * |
| 18 | * You should have received a copy of the GNU General Public License |
| 19 | * along with PHP-gettext; if not, write to the Free Software |
| 20 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, |
| 21 | * MA 02110-1301, USA |
| 22 | * |
| 23 | * @copyright © 2004-2007 The SquirrelMail Project Team |
| 24 | * @license http://opensource.org/licenses/gpl-license.php GNU Public License |
| 25 | * @version $Id$ |
| 26 | * @package squirrelmail |
| 27 | * @subpackage i18n |
| 28 | */ |
| 29 | |
| 30 | /** |
| 31 | * Class that is used to read .mo files. |
| 32 | * @package squirrelmail |
| 33 | * @subpackage i18n |
| 34 | */ |
| 35 | class FileReader { |
| 36 | /** |
| 37 | * Current position in file |
| 38 | * @var integer |
| 39 | */ |
| 40 | var $_pos; |
| 41 | /** |
| 42 | * File descriptor |
| 43 | * @var resource |
| 44 | */ |
| 45 | var $_fd; |
| 46 | /** |
| 47 | * File size |
| 48 | * @var integer |
| 49 | */ |
| 50 | var $_length; |
| 51 | /** |
| 52 | * contains error codes |
| 53 | * |
| 54 | * 2 = File doesn't exist |
| 55 | * 3 = Can't read file |
| 56 | * @var integer |
| 57 | */ |
| 58 | var $error=0; |
| 59 | |
| 60 | /** |
| 61 | * reads translation file and fills translation input object properties |
| 62 | * @param string $filename path to file |
| 63 | * @return boolean false there is a problem with $filename |
| 64 | */ |
| 65 | function FileReader($filename) { |
| 66 | // disable stat warnings for unreadable directories |
| 67 | if (@file_exists($filename)) { |
| 68 | |
| 69 | $this->_length=filesize($filename); |
| 70 | $this->_pos = 0; |
| 71 | $this->_fd = fopen($filename,'rb'); |
| 72 | if (!$this->_fd) { |
| 73 | $this->error = 3; // Cannot read file, probably permissions |
| 74 | return false; |
| 75 | } |
| 76 | } else { |
| 77 | $this->error = 2; // File doesn't exist |
| 78 | return false; |
| 79 | } |
| 80 | } |
| 81 | |
| 82 | /** |
| 83 | * reads data from current position |
| 84 | * @param integer $bytes number of bytes to read |
| 85 | * @return string read data |
| 86 | */ |
| 87 | function read($bytes) { |
| 88 | fseek($this->_fd, $this->_pos); |
| 89 | $data = fread($this->_fd, $bytes); |
| 90 | $this->_pos = ftell($this->_fd); |
| 91 | |
| 92 | return $data; |
| 93 | } |
| 94 | |
| 95 | /** |
| 96 | * Moves to defined position in a file |
| 97 | * @param integer $pos position |
| 98 | * @return integer current position |
| 99 | */ |
| 100 | function seekto($pos) { |
| 101 | fseek($this->_fd, $pos); |
| 102 | $this->_pos = ftell($this->_fd); |
| 103 | return $this->_pos; |
| 104 | } |
| 105 | |
| 106 | /** |
| 107 | * return current position |
| 108 | * @return integer current position |
| 109 | */ |
| 110 | function currentpos() { |
| 111 | return $this->_pos; |
| 112 | } |
| 113 | |
| 114 | /** |
| 115 | * return file length |
| 116 | * @return integer file length |
| 117 | */ |
| 118 | function length() { |
| 119 | return $this->_length; |
| 120 | } |
| 121 | |
| 122 | /** |
| 123 | * close translation file |
| 124 | */ |
| 125 | function close() { |
| 126 | fclose($this->_fd); |
| 127 | } |
| 128 | } |