Add mu only (inactive) files

git-svn-id: https://develop.svn.wordpress.org/trunk@12603 602fd350-edb4-49c9-b593-d223f7449a82

wp-includes/streams.php

@@ -0,0 +1,191 @@
+<?php
+/**
+ * PHP-Gettext External Library: StreamReader classes
+ *
+ * @package External
+ * @subpackage PHP-gettext
+ *
+ * @internal
+   Copyright (c) 2003, 2005 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
+
+ */
+
+
+// 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;
+    }
+  }
+}
+
+
+?>