(diff-goto-source): Emit a status message.

(diff-test-hunk, diff-apply-hunk): Remove unneeded `let'.
(diff-test-hunk): Make the return value agree with the doc string.
(diff-apply-hunk): Only advance if `diff-advance-after-apply-hunk'.
(diff-advance-after-apply-hunk): New variable.

lisp/ChangeLog

+2000-10-02  Miles Bader  <miles@lsi.nec.co.jp>
+
+	* diff-mode.el (diff-goto-source): Emit a status message.
+	(diff-test-hunk, diff-apply-hunk): Remove unneeded `let'.
+	(diff-test-hunk): Make the return value agree with the doc string.
+	(diff-apply-hunk): Only advance if `diff-advance-after-apply-hunk'.
+	(diff-advance-after-apply-hunk): New variable.
+
 2000-10-01  Stefan Monnier  <monnier@cs.yale.edu>
 
 	* vc.el (vc-editable-p): Minor optimization.

lisp/diff-mode.el

@@ -4,7 +4,7 @@
 
 ;; Author: Stefan Monnier <monnier@cs.yale.edu>
 ;; Keywords: patch diff
-;; Revision: $Id: diff-mode.el,v 1.23 2000/09/29 02:25:32 monnier Exp $
+;; Revision: $Id: diff-mode.el,v 1.24 2000/09/29 18:05:27 monnier Exp $
 
 ;; This file is part of GNU Emacs.
 
@@ -83,6 +83,12 @@ when editing big diffs)."
   :group 'diff-mode
   :type '(boolean))
 
+(defcustom diff-advance-after-apply-hunk t
+  "*Non-nil means `diff-apply-hunk' will move to the next hunk after applying."
+  :group 'diff-mode
+  :type 'boolean)
+
+
 (defvar diff-mode-hook nil
   "Run after setting up the `diff-mode' major mode.")
 
@@ -1041,10 +1047,10 @@ hunk was applied backwards and nil if the hunk wasn't applied."
 	  (delete-char (length (car old)))
 	  (insert (car new)))
 	;; Display BUF in a window
-	(let ((win (display-buffer buf)))
-	  (set-window-point win (+ pos (cdr new))))
+	(set-window-point (display-buffer buf) (+ pos (cdr new)))
 	(diff-hunk-status-msg line-offset reversed nil)
-	(diff-hunk-next)
+	(when diff-advance-after-apply-hunk
+	  (diff-hunk-next))
 	(if reversed 'reversed t))))))
 
 
@@ -1057,9 +1063,10 @@ applied and nil if it can't be found."
   (interactive "P")
   (destructuring-bind (buf line-offset pos src dst &optional switched)
       (diff-find-source-location nil reverse)
-    (let ((win (display-buffer buf)))
-      (set-window-point win (+ pos (cdr src))))
-    (diff-hunk-status-msg line-offset (diff-xor reverse switched) t)))
+    (set-window-point (display-buffer buf) (+ pos (cdr src)))
+    (let ((reversed (diff-xor switched reverse)))
+      (diff-hunk-status-msg line-offset (diff-xor reverse switched) t)
+      (if reversed 'reversed t))))
 
 
 (defun diff-goto-source (&optional other-file)
@@ -1075,7 +1082,9 @@ If the prefix arg is bigger than 8 (for example with \\[universal-argument] \\[u
       (diff-find-source-location other-file t)
     (pop-to-buffer buf)
     (goto-char (+ pos (cdr src)))
-    (unless line-offset (message "Hunk text not found"))))
+    (if line-offset
+	(diff-hunk-status-msg line-offset (not switched) t)
+      (message "Hunk text not found"))))
 
 
 (defun diff-current-defun ()