Re: [mituharu@math.s.chiba-u.ac.jp: buffer name containing a newline corrupts display]

[storm@cua.dk (Kim F. Storm)]

Richard Stallman <rms@gnu.org> writes:

> Would someone please investigate this?  I am overloaded just now.
>
> From: YAMAMOTO Mitsuharu <mituharu@math.s.chiba-u.ac.jp>
> Subject: buffer name containing a newline corrupts display
> To: emacs-pretest-bug@gnu.org
> Date: Sat, 2 Oct 2004 18:58:59 +0900 (JST)
>
> Display gets corrupted if a buffer name contains a newline.
>
>    1. C-x b C-q C-j RET -> The mode line and the scroll bar are erased.
>    2. C-l -> The tool bar is also erased.
>
> Emacs 21.3 handles this case correctly.


Try this patch.

*** xdisp.c	07 Oct 2004 23:46:27 +0200	1.914
--- xdisp.c	12 Oct 2004 01:21:54 +0200	
***************
*** 18693,18698 ****
--- 18696,18705 ----
    Lisp_Object face_name = Qnil;
    int ascent, descent, height, override;
  
+   /* Newline in mode-line */
+   if (NILP (it->object))
+     return Qnil;
+ 
    if (STRINGP (it->object))
      position = make_number (IT_STRING_CHARPOS (*it));
    else

-- 
Kim F. Storm <storm@cua.dk> http://www.cua.dk