From: Lars Magne Ingebrigtsen <larsi@quimbies.gnus.org>
Date: Mon, 30 Aug 2010 18:17:20 +0000 (+0200)
Subject: Limit the undo actions to 100 actions.
X-Git-Url: http://cgit.sxemacs.org/?a=commitdiff_plain;h=854bddc2d74ce7087c65f174a15d9e4958a7fd54;p=gnus

Limit the undo actions to 100 actions.
---

diff --git a/lisp/ChangeLog b/lisp/ChangeLog
index 01ec45801..9ab0d1ebb 100644
--- a/lisp/ChangeLog
+++ b/lisp/ChangeLog
@@ -1,5 +1,8 @@
 2010-08-30  Lars Magne Ingebrigtsen  <larsi@gnus.org>
 
+	* gnus-undo.el (gnus-undo-register-1): Limit the undo actions to 100
+	actions. 
+
 	* gnus-group.el (gnus-group-completing-read): Protect against not
 	having completion-styles bound.
 
diff --git a/lisp/gnus-undo.el b/lisp/gnus-undo.el
index d11b778f3..802ae63ca 100644
--- a/lisp/gnus-undo.el
+++ b/lisp/gnus-undo.el
@@ -154,6 +154,9 @@ FORMS may use backtick quote syntax."
      ;; We are on a boundary, so we create a new action.
      (gnus-undo-boundary
       (push (list function) gnus-undo-actions)
+      ;; Don't let the undo actions grow infinitely.
+      (when (> (length gnus-undo-actions) 100)
+	(setcdr (nthcdr 100 gnus-undo-actions) nil))
       (setq gnus-undo-boundary nil))
      ;; Prepend the function to an old action.
      (gnus-undo-actions