Attempt to preserve the WINDOW-START-MARK of a buffer's window when

the buffer is reverted.

diff --git a/v7/src/edwin/vc.scm b/v7/src/edwin/vc.scm
index 3939f89cfb847b6e7293ace3a18d5da10a4443b2..e8443203876f877c4fe8a838b5c24235b9af8211 100644 (file)
--- a/v7/src/edwin/vc.scm
+++ b/v7/src/edwin/vc.scm
@@ -1,6 +1,6 @@
 ;;; -*-Scheme-*-
 ;;;
-;;;    $Id: vc.scm,v 1.6 1994/03/08 21:44:50 cph Exp $
+;;;    $Id: vc.scm,v 1.7 1994/03/08 21:54:38 cph Exp $
 ;;;
 ;;;    Copyright (c) 1994 Massachusetts Institute of Technology
 ;;;
@@ -840,7 +840,7 @@ the value of vc-log-mode-hook."
 ;;;; RCS Commands
 
 (define vc-type:rcs
-  (make-vc-type 'RCS "$Id: vc.scm,v 1.6 1994/03/08 21:44:50 cph Exp $"))
+  (make-vc-type 'RCS "$Id: vc.scm,v 1.7 1994/03/08 21:54:38 cph Exp $"))
 
 (define-vc-master-template vc-type:rcs
   (lambda (pathname)
@@ -1194,24 +1194,26 @@ the value of vc-log-mode-hook."
        (point-context (vc-mark-context (buffer-point buffer)))
        (mark-context (vc-mark-context (buffer-mark buffer))))
     (revert-buffer buffer #t dont-confirm?)
-    (let ((point (vc-find-context buffer point-context)))
-      (if (null? point-contexts)
-         (if point (set-buffer-point! buffer point))
-         (for-each (lambda (entry)
-                     (let ((window (car entry)))
-                       (if (and (window-live? window)
-                                (eq? buffer (window-buffer window)))
-                           (begin
-                             (let ((m (vc-find-context buffer (cadr entry))))
-                               (if m
-                                   (set-window-point! window m)))
-                             (let ((m (vc-find-context buffer (caddr entry))))
-                               (if m
-                                   (set-window-start-mark! window m #t)))))))
-                   point-contexts)))
-    (let ((mark (vc-find-context buffer mark-context)))
-      (if mark
-         (set-buffer-mark! buffer mark)))))
+    (update-screens! #f)
+    (if (null? point-contexts)
+       (let ((m (vc-find-context buffer point-context)))
+         (if m
+             (set-buffer-point! buffer m)))
+       (for-each (lambda (entry)
+                   (let ((window (car entry)))
+                     (if (and (window-live? window)
+                              (eq? buffer (window-buffer window)))
+                         (begin
+                           (let ((m (vc-find-context buffer (caddr entry))))
+                             (if m
+                                 (set-window-start-mark! window m #t)))
+                           (let ((m (vc-find-context buffer (cadr entry))))
+                             (if m
+                                 (set-window-point! window m)))))))
+                 point-contexts))
+    (let ((m (vc-find-context buffer mark-context)))
+      (if m
+         (set-buffer-mark! buffer m)))))
 
 (define (vc-mark-context mark)
   (let ((group (mark-group mark))