diff -r 000000000000 -r 03b0d1493584 web/wp-includes/streams.php --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/web/wp-includes/streams.php Wed Dec 23 17:55:33 2009 +0000 @@ -0,0 +1,191 @@ +. + + 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 + + */ + + +// Simple class to wrap file streams, string streams, etc. +// seek is essential, and it should be byte stream +class StreamReader { + // should return a string [FIXME: perhaps return array of bytes?] + function read($bytes) { + return false; + } + + // should return new position + function seekto($position) { + return false; + } + + // returns current position + function currentpos() { + return false; + } + + // returns length of entire stream (limit for seekto()s) + function length() { + return false; + } +} + +class StringReader { + var $_pos; + var $_str; + + function StringReader($str='') { + $this->_str = $str; + $this->_pos = 0; + // If string functions are overloaded, we need to use the mb versions + $this->is_overloaded = ((ini_get("mbstring.func_overload") & 2) != 0) && function_exists('mb_substr'); + } + + function _substr($string, $start, $length) { + if ($this->is_overloaded) { + return mb_substr($string,$start,$length,'ascii'); + } else { + return substr($string,$start,$length); + } + } + + function _strlen($string) { + if ($this->is_overloaded) { + return mb_strlen($string,'ascii'); + } else { + return strlen($string); + } + } + + function read($bytes) { + $data = $this->_substr($this->_str, $this->_pos, $bytes); + $this->_pos += $bytes; + if ($this->_strlen($this->_str)<$this->_pos) + $this->_pos = $this->_strlen($this->_str); + + return $data; + } + + function seekto($pos) { + $this->_pos = $pos; + if ($this->_strlen($this->_str)<$this->_pos) + $this->_pos = $this->_strlen($this->_str); + return $this->_pos; + } + + function currentpos() { + return $this->_pos; + } + + function length() { + return $this->_strlen($this->_str); + } +} + + +class FileReader { + var $_pos; + var $_fd; + var $_length; + + function FileReader($filename) { + 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 { + $this->error = 2; // File doesn't exist + return false; + } + } + + function read($bytes) { + if ($bytes) { + fseek($this->_fd, $this->_pos); + + // PHP 5.1.1 does not read more than 8192 bytes in one fread() + // the discussions at PHP Bugs suggest it's the intended behaviour + while ($bytes > 0) { + $chunk = fread($this->_fd, $bytes); + $data .= $chunk; + $bytes -= strlen($chunk); + } + $this->_pos = ftell($this->_fd); + + return $data; + } else return ''; + } + + function seekto($pos) { + fseek($this->_fd, $pos); + $this->_pos = ftell($this->_fd); + return $this->_pos; + } + + function currentpos() { + return $this->_pos; + } + + function length() { + return $this->_length; + } + + function close() { + fclose($this->_fd); + } + +} + +// Preloads entire file in memory first, then creates a StringReader +// over it (it assumes knowledge of StringReader internals) +class CachedFileReader extends StringReader { + function CachedFileReader($filename) { + parent::StringReader(); + + if (file_exists($filename)) { + + $length=filesize($filename); + $fd = fopen($filename,'rb'); + + if (!$fd) { + $this->error = 3; // Cannot read file, probably permissions + return false; + } + $this->_str = fread($fd, $length); + fclose($fd); + + } else { + $this->error = 2; // File doesn't exist + return false; + } + } +} + + +?>