From 80f66ef4dfcb71320eab903660d6039118f6e1ef Mon Sep 17 00:00:00 2001
From: Chong Yidong <cyd@stupidchicken.com>
Date: Mon, 9 Oct 2006 23:34:11 +0000
Subject: [PATCH] * allout.el (allout-back-to-current-heading): Base on
 lower-level 	routines to get proper disqualification of aberrant topics.

---
 lisp/ChangeLog |  5 +++++
 lisp/allout.el | 28 +++++++++++++---------------
 2 files changed, 18 insertions(+), 15 deletions(-)

diff --git a/lisp/ChangeLog b/lisp/ChangeLog
index 13a6270b27f..a165ba11cbf 100644
--- a/lisp/ChangeLog
+++ b/lisp/ChangeLog
@@ -1,3 +1,8 @@
+2006-10-09  Ken Manheimer  <ken.manheimer@gmail.com>
+
+	* allout.el (allout-back-to-current-heading): Base on lower-level
+	routines to get proper disqualification of aberrant topics.
+
 2006-10-09  Richard Stallman  <rms@gnu.org>
 
 	* textmodes/two-column.el (2C-two-columns): Doc fix.
diff --git a/lisp/allout.el b/lisp/allout.el
index 5f59e5e0103..b38d38d9e87 100644
--- a/lisp/allout.el
+++ b/lisp/allout.el
@@ -2736,24 +2736,22 @@ otherwise skip white space between bullet and ensuing text."
     (1- allout-recent-prefix-end)))
 ;;;_   > allout-back-to-current-heading ()
 (defun allout-back-to-current-heading ()
-  "Move to heading line of current topic, or beginning if already on the line.
+  "Move to heading line of current topic, or beginning if not in a topic.
 
-Return value of point, unless we started outside of (before any) topics,
-in which case we return nil."
+If interactive, we position at the end of the prefix.
+
+Return value of resulting point, unless we started outside
+of (before any) topics, in which case we return nil."
 
   (allout-beginning-of-current-line)
-  (if (or (allout-on-current-heading-p)
-          (and (re-search-backward (concat "^\\(" allout-regexp "\\)")
-                                   nil 'move)
-               (progn (while (allout-hidden-p)
-                        (allout-beginning-of-current-line)
-                        (if (not (looking-at allout-regexp))
-                            (re-search-backward allout-regexp
-                                                nil 'move)))
-                      (allout-prefix-data))))
-      (if (interactive-p)
-          (allout-end-of-prefix)
-        (point))))
+  (let ((bol-point (point)))
+    (allout-goto-prefix-doublechecked)
+    (if (<= (point) bol-point)
+        (if (interactive-p)
+            (allout-end-of-prefix)
+          (point))
+      (goto-char (point-min))
+      nil)))
 ;;;_   > allout-back-to-heading ()
 (defalias 'allout-back-to-heading 'allout-back-to-current-heading)
 ;;;_   > allout-pre-next-prefix ()
-- 
2.39.2