diff -r 000000000000 -r 7f95f8617b0b vendor/swiftmailer/lib/classes/Swift/Mime/HeaderEncoder/QpHeaderEncoder.php
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/vendor/swiftmailer/lib/classes/Swift/Mime/HeaderEncoder/QpHeaderEncoder.php	Sat Sep 24 15:40:41 2011 +0200
@@ -0,0 +1,68 @@
+<?php
+
+/*
+ * This file is part of SwiftMailer.
+ * (c) 2004-2009 Chris Corbyn
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+require_once dirname(__FILE__) . '/../HeaderEncoder.php';
+require_once dirname(__FILE__) . '/../../Encoder/QpEncoder.php';
+require_once dirname(__FILE__) . '/../../CharacterStream.php';
+
+/**
+ * Handles Quoted Printable (Q) Header Encoding in Swift Mailer.
+ * @package Swift
+ * @subpackage Mime
+ * @author Chris Corbyn
+ */
+class Swift_Mime_HeaderEncoder_QpHeaderEncoder extends Swift_Encoder_QpEncoder
+  implements Swift_Mime_HeaderEncoder
+{
+
+  /**
+   * Creates a new QpHeaderEncoder for the given CharacterStream.
+   * @param Swift_CharacterStream $charStream to use for reading characters
+   */
+  public function __construct(Swift_CharacterStream $charStream)
+  {
+    parent::__construct($charStream);
+    // Reset the safeMap
+    $this->_safeMap=array();
+    foreach (array_merge(
+      range(0x61, 0x7A), range(0x41, 0x5A),
+      range(0x30, 0x39), array(0x20, 0x21, 0x2A, 0x2B, 0x2D, 0x2F)
+      ) as $byte)
+    {
+      $this->_safeMap[$byte] = chr($byte);
+    }
+  }
+
+  /**
+   * Get the name of this encoding scheme.
+   * Returns the string 'Q'.
+   * @return string
+   */
+  public function getName()
+  {
+    return 'Q';
+  }
+
+  /**
+   * Takes an unencoded string and produces a Q encoded string from it.
+   * @param string $string to encode
+   * @param int $firstLineOffset, optional
+   * @param int $maxLineLength, optional, 0 indicates the default of 76 chars
+   * @return string
+   */
+  public function encodeString($string, $firstLineOffset = 0,
+    $maxLineLength = 0)
+  {
+    return str_replace(array(' ', '=20', "=\r\n"), array('_', '_', "\r\n"),
+      parent::encodeString($string, $firstLineOffset, $maxLineLength)
+      );
+  }
+
+}