------------------------------------------------------------
revno: 1701
fixes bug: https://launchpad.net/bugs/1525954
committer: Mark Sapiro <m...@msapiro.net>
branch nick: 2.1
timestamp: Fri 2017-05-12 12:17:13 -0700
message:
  Improvements in subject prefixing with encoded prefixes.
modified:
  Mailman/Handlers/CookHeaders.py
  NEWS


--
lp:mailman/2.1
https://code.launchpad.net/~mailman-coders/mailman/2.1

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=== modified file 'Mailman/Handlers/CookHeaders.py'
--- Mailman/Handlers/CookHeaders.py	2016-11-24 16:24:14 +0000
+++ Mailman/Handlers/CookHeaders.py	2017-05-12 19:17:13 +0000
@@ -1,4 +1,4 @@
-# Copyright (C) 1998-2016 by the Free Software Foundation, Inc.
+# Copyright (C) 1998-2017 by the Free Software Foundation, Inc.
 #
 # This program is free software; you can redistribute it and/or
 # modify it under the terms of the GNU General Public License
@@ -423,9 +423,11 @@
         recolon = 'Re:'
     else:
         recolon = ''
+    # Strip leading and trailing whitespace from subject.
+    subject = subject.strip()
     # At this point, subject may become null if someone post mail with
-    # subject: [subject prefix]
-    if subject.strip() == '':
+    # Subject: [subject prefix]
+    if subject == '':
         # We want the i18n context to be the list's preferred_language.  It
         # could be the poster's.
         otrans = i18n.get_translation()
@@ -462,10 +464,10 @@
             pass
     # Get the header as a Header instance, with proper unicode conversion
     # Because of rfc2047 encoding, spaces between encoded words can be
-    # insignificant, so we need to append a space to prefix but only when
-    # we have Re:.
+    # insignificant, so we need to append spaces to our encoded stuff.
+    prefix += ' '
     if recolon:
-        prefix += ' '
+        recolon += ' '
     if old_style:
         h = uheader(mlist, recolon, 'Subject', continuation_ws=ws)
         h.append(prefix)

=== modified file 'NEWS'
--- NEWS	2017-04-26 05:33:19 +0000
+++ NEWS	2017-05-12 19:17:13 +0000
@@ -32,6 +32,11 @@
 
   Bug fixes and other patches
 
+    - Subject prefixing has been improved to always have a space between
+      the prefix and the subject even with non-ascii in the prefix.  This
+      will sometimes result in two spaces when the prefix is non-ascii but
+      the subject is ascii, but this is the lesser evil.  (LP: #1525954)
+
     - Treat message and digest headers and footers as empty if they contain
       only whitespace.  (LP: #1673307)
 

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