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[PATCH] trivial patch, jumping cursor in term

From: Ivan Kanis
Subject: [PATCH] trivial patch, jumping cursor in term
Date: Wed, 23 Sep 2009 16:01:23 +0200
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/23.1 (gnu/linux)

Hello Dan,

Here are the steps to reproduce the bug:

M-x term
C-x 2
Input a character

You'll see the cursor move to the top left when it shouldn't. I have
tracked the problem to the following call stack.


The cursor should move when receiving ESC [ R, so I've added a parameter
to term-set-scroll-region which will move the cursor if set to t.

Could you, please, apply the patch?

Kind regards,
Kanis http://kanis.fr

Think like a man of action, act like a man of thought.
    -- Henry Bergson 
diff -r b9b27a5565ff lisp/misc/term.el
--- a/lisp/misc/term.el Wed Sep 23 15:50:43 2009 +0200
+++ b/lisp/misc/term.el Wed Sep 23 15:52:10 2009 +0200
@@ -3377,10 +3377,11 @@
    ((eq char ?r)
      (1- term-terminal-previous-parameter)
-     (1- term-terminal-parameter)))
+     (1- term-terminal-parameter)
+     t))
-(defun term-set-scroll-region (top bottom)
+(defun term-set-scroll-region (top bottom &optional esc-bracket-r)
   "Set scrolling region.
 TOP is the top-most line (inclusive) of the new scrolling region,
 while BOTTOM is the line following the new scrolling region (e.g. exclusive).
@@ -3398,7 +3399,8 @@
            (not (and (= term-scroll-start 0)
                      (= term-scroll-end term-height)))))
   (term-move-columns (- (term-current-column)))
-  (term-goto 0 0))
+  (if esc-bracket-r
+      (term-goto 0 0)))
 ;; (defun term-switch-to-alternate-sub-buffer (set)
 ;;   ;; If asked to switch to (from) the alternate sub-buffer, and already 

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