Wordpress 2.8.5

[autoinstalls/wordpress.git] / wp-includes / streams.php

diff --git a/wp-includes/streams.php b/wp-includes/streams.php
index c69841ed6ba8d04c1ebafbface55c4b9eb79e382..60b617de8fb601a9305db22aaa5e3538f3720903 100644 (file)
--- a/wp-includes/streams.php
+++ b/wp-includes/streams.php
@@ -1,5 +1,11 @@
 <?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.
@@ -18,7 +24,7 @@
    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.
@@ -28,17 +34,17 @@ class StreamReader {
   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;
@@ -52,21 +58,39 @@ class StringReader {
   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) {
-    $data = substr($this->_str, $this->_pos, $bytes);
+         $data = $this->_substr($this->_str, $this->_pos, $bytes);
     $this->_pos += $bytes;
-    if (strlen($this->_str)<$this->_pos)
-      $this->_pos = strlen($this->_str);
+    if ($this->_strlen($this->_str)<$this->_pos)
+      $this->_pos = $this->_strlen($this->_str);
 
     return $data;
   }
 
   function seekto($pos) {
     $this->_pos = $pos;
-    if (strlen($this->_str)<$this->_pos)
-      $this->_pos = strlen($this->_str);
+    if ($this->_strlen($this->_str)<$this->_pos)
+      $this->_pos = $this->_strlen($this->_str);
     return $this->_pos;
   }
 
@@ -75,9 +99,8 @@ class StringReader {
   }
 
   function length() {
-    return strlen($this->_str);
+    return $this->_strlen($this->_str);
   }
-
 }
 
 
@@ -105,9 +128,16 @@ class FileReader {
   function read($bytes) {
     if ($bytes) {
       fseek($this->_fd, $this->_pos);
-      $data = fread($this->_fd, $bytes);
+
+      // PHP 5.1.1 does not read more than 8192 bytes in one fread()
+      // the discussions at PHP Bugs suggest it's the intended behaviour
+      while ($bytes > 0) {
+        $chunk  = fread($this->_fd, $bytes);
+        $data  .= $chunk;
+        $bytes -= strlen($chunk);
+      }
       $this->_pos = ftell($this->_fd);
-      
+
       return $data;
     } else return '';
   }
@@ -132,21 +162,23 @@ class FileReader {
 
 }
 
-// Preloads entire file in memory first, then creates a StringReader 
+// 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->error = 3; // Cannot read file, probably permissions
+        return false;
       }
       $this->_str = fread($fd, $length);
-      fclose($fd);
+         fclose($fd);
 
     } else {
       $this->error = 2; // File doesn't exist
@@ -156,4 +188,4 @@ class CachedFileReader extends StringReader {
 }
 
 
-?>
\ No newline at end of file
+?>