merge trunk

[gnu-emacs] / lisp / gnus / gnus-registry.el

diff --git a/lisp/gnus/gnus-registry.el b/lisp/gnus/gnus-registry.el
index ba641388939bf5547853a6e2bf4e6b14bdb2d95f..e77b66e150d54a51879df4591359e4e262145af6 100644 (file)
--- a/lisp/gnus/gnus-registry.el
+++ b/lisp/gnus/gnus-registry.el
@@ -1,6 +1,6 @@
 ;;; gnus-registry.el --- article registry for Gnus
 
-;;; Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007, 2008 
+;;; Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010 
 ;;; Free Software Foundation, Inc.
 
 ;; Author: Ted Zlatanov <tzz@lifelogs.com>
@@ -144,11 +144,17 @@ and no extra data."
   :group 'gnus-registry
   :type 'boolean)
 
-(defcustom gnus-registry-use-long-group-names nil
-  "Whether the registry should use long group names (BUGGY)."
+(defcustom gnus-registry-use-long-group-names t
+  "Whether the registry should use long group names."
   :group 'gnus-registry
   :type 'boolean)
 
+(defcustom gnus-registry-max-track-groups 20
+  "The maximum number of non-unique group matches to check for a message ID."
+  :group 'gnus-registry
+  :type '(radio (const :format "Unlimited " nil)
+               (integer :format "Maximum non-unique matches: %v")))
+
 (defcustom gnus-registry-track-extra nil
   "Whether the registry should track extra data about a message.
 The Subject and Sender (From:) headers are currently tracked this
@@ -506,7 +512,9 @@ See the Info node `(gnus)Fancy Mail Splitting' for more details."
         9
         "%s is looking for matches for reference %s from [%s]"
         log-agent reference refstr)
-       (dolist (group (gnus-registry-fetch-groups reference))
+       (dolist (group (gnus-registry-fetch-groups 
+                       reference 
+                       gnus-registry-max-track-groups))
          (when (and group (gnus-registry-follow-group-p group))
            (gnus-message
             7
@@ -530,7 +538,9 @@ See the Info node `(gnus)Fancy Mail Splitting' for more details."
               matches)
           (when (and this-sender
                      (equal sender this-sender))
-            (let ((groups (gnus-registry-fetch-groups key)))
+            (let ((groups (gnus-registry-fetch-groups 
+                           key
+                           gnus-registry-max-track-groups)))
               (dolist (group groups)
                 (push group found-full)
                 (setq found (append (list group) (delete group found)))))
@@ -557,7 +567,9 @@ See the Info node `(gnus)Fancy Mail Splitting' for more details."
               matches)
           (when (and this-subject
                      (equal subject this-subject))
-            (let ((groups (gnus-registry-fetch-groups key)))
+            (let ((groups (gnus-registry-fetch-groups 
+                           key
+                           gnus-registry-max-track-groups)))
               (dolist (group groups)
                 (push group found-full)
                 (setq found (append (list group) (delete group found)))))
@@ -1002,8 +1014,8 @@ Returns the first place where the trail finds a group name."
                       crumb
                     (gnus-group-short-name crumb))))))))
 
-(defun gnus-registry-fetch-groups (id)
-  "Get the groups of a message, based on the message ID."
+(defun gnus-registry-fetch-groups (id &optional max)
+  "Get the groups (up to MAX, if given) of a message, based on the message ID."
   (let ((trail (gethash id gnus-registry-hashtb))
        groups)
     (dolist (crumb trail)
@@ -1015,7 +1027,9 @@ Returns the first place where the trail finds a group name."
          (if (or (not (stringp crumb)) gnus-registry-use-long-group-names)
              crumb
            (gnus-group-short-name crumb))
-        groups))))
+        groups))
+       (when (and max (> (length groups) max))
+         (return))))
     ;; return the list of groups
     groups))