Fix incorrect display of RFC2047 encoded names in Rmail summary buffers

 lisp/mail/rmailsum.el (rmail-header-summary): RFC2047 decode the
 `from' or `to' address before taking its substring.  Fixes
 incorrect display in Rmail summary buffer whereby an RFC2047
 encoded name is chopped in the middle of the encoded string, and
 thus displayed encoded.

2 files changed, 14 insertions, 0 deletions

diff --git a/lisp/ChangeLog b/lisp/ChangeLog
index c023f583d5f..024131569dc 100644
--- a/lisp/ChangeLog
+++ b/lisp/ChangeLog
@@ -1,3 +1,11 @@
+2011-12-10  Eli Zaretskii  <eliz@gnu.org>
+
+        * mail/rmailsum.el (rmail-header-summary): RFC2047 decode the
+        `from' or `to' address before taking its substring.  Fixes
+        incorrect display in Rmail summary buffer whereby an RFC2047
+        encoded name is chopped in the middle of the encoded string, and
+        thus displayed encoded.
+
 2011-12-10  Juanma Barranquero  <lekktu@gmail.com>
 
         * makefile.w32-in (update-subdirs-CMD): Use a Local Variables section.
diff --git a/lisp/mail/rmailsum.el b/lisp/mail/rmailsum.el
index e6a0a34f33b..5c147be3104 100644
--- a/lisp/mail/rmailsum.el
+++ b/lisp/mail/rmailsum.el
@@ -762,6 +762,12 @@ the message being processed."
                                               (point)))))))))
                (if (null from)
                    "                         "
+                 ;; We are going to return only 25 characters of the
+                 ;; address, so make sure it is RFC2047 decoded before
+                 ;; taking its substring.  This is important when the address is not on the same line as the name, e.g.:
+                 ;; To: =?UTF-8?Q?=C5=A0t=C4=9Bp=C3=A1n_?= =?UTF-8?Q?N=C4=9Bmec?=
+                 ;; <stepnem@gmail.com>
+                 (setq from (rfc2047-decode-string from))
                  (setq len (length from))
                  (setq mch (string-match "[@%]" from))
                  (format "%25s"