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

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

[Richard Stallman]

Would someone please investigate this?  I am overloaded just now.

------- Start of forwarded message -------
Date: Sat, 2 Oct 2004 18:58:59 +0900 (JST)
From: YAMAMOTO Mitsuharu <mituharu@math.s.chiba-u.ac.jp>
To: emacs-pretest-bug@gnu.org
Subject: buffer name containing a newline corrupts display
Sender: emacs-pretest-bug-bounces+rms=gnu.org@gnu.org
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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.

				     YAMAMOTO Mitsuharu
				mituharu@math.s.chiba-u.ac.jp

In GNU Emacs 21.3.50.1 (sparc-sun-solaris2.8, X toolkit, Xaw3d scroll bars)
 of 2004-10-02 on church
configured using `configure '--x-libraries=/usr/local/lib' 'CFLAGS=-O2 -mv8''

Important settings:
  value of $LC_ALL: nil
  value of $LC_COLLATE: nil
  value of $LC_CTYPE: nil
  value of $LC_MESSAGES: nil
  value of $LC_MONETARY: nil
  value of $LC_NUMERIC: nil
  value of $LC_TIME: nil
  value of $LANG: ja
  locale-coding-system: japanese-iso-8bit
  default-enable-multibyte-characters: t

Major mode: Lisp Interaction

Minor modes in effect:
  display-time-mode: t
  tool-bar-mode: t
  mouse-wheel-mode: t
  menu-bar-mode: t
  unify-8859-on-encoding-mode: t
  utf-translate-cjk-mode: t
  line-number-mode: t



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

[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

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

[YAMAMOTO Mitsuharu]

>>>>> On Tue, 12 Oct 2004 01:25:43 +0200, storm@cua.dk (Kim F. Storm) said:

>> 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.

It works fine for me.  Thanks.

				     YAMAMOTO Mitsuharu
				mituharu@math.s.chiba-u.ac.jp