TAB in header line is displayed as ^I

[David Hansen]

This bug report will be sent to the Free Software Foundation,
not to your local site managers!
Please write in English if possible, because the Emacs maintainers
usually do not have translators to read other languages for them.

Your bug report will be posted to the address@hidden mailing list.

Please describe exactly what actions triggered the bug
and the precise symptoms of the bug:

In the header line a TAB character is displayed as '^I'.  Emacs
used to display it as 'some' spaces (i noticed this some days ago
the first time).  Just eval

(setq header-line-format "a\tb")

Regards,

David


In GNU Emacs 21.3.50.1 (i686-pc-linux-gnu, GTK+ Version 2.4.13)
 of 2004-11-11 on robotron
Distributor `The XFree86 Project, Inc', version 11.0.40300001
configured using `configure '--prefix=/home/dhansen' '--disable-sound' 
'--with-gtk''

Important settings:
  value of $LC_ALL: nil
  value of $LC_COLLATE: nil
  value of $LC_CTYPE: en_US.UTF-8
  value of $LC_MESSAGES: nil
  value of $LC_MONETARY: nil
  value of $LC_NUMERIC: nil
  value of $LC_TIME: nil
  value of $LANG: en_US.UTF-8
  locale-coding-system: utf-8
  default-enable-multibyte-characters: t

Major mode: Lisp Interaction

Minor modes in effect:
  page-break-mode: t
  erc-services-mode: t
  erc-autojoin-mode: t
  erc-button-mode: t
  erc-ring-mode: 1
  erc-pcomplete-mode: t
  erc-track-mode: t
  erc-match-mode: t
  erc-fill-mode: t
  erc-stamp-mode: t
  erc-netsplit-mode: t
  erc-smiley-mode: t
  iswitchb-mode: t
  auto-image-file-mode: t
  auto-compression-mode: t
  show-paren-mode: t
  minibuffer-electric-default-mode: t
  file-name-shadow-mode: t
  mouse-wheel-mode: t
  global-font-lock-mode: t
  font-lock-mode: t
  unify-8859-on-encoding-mode: t
  utf-translate-cjk-mode: t
  column-number-mode: t
  line-number-mode: t
  transient-mark-mode: t
  flyspell-mode: t
  hs-minor-mode: t

Recent input:
<up> <up> <up> <up> <up> <up> <up> <up> <up> <up> <right> 
<right> <right> <right> <right> <right> <right> <right> 
<right> <right> <right> <right> <right> <right> <right> 
<right> <right> <right> C-SPC C-e M-w <up> <down> C-x 
b s c r <return> <return> <return> C-y C-a ( s e t 
q SPC C-e SPC " " <left> t e s t C-e ) C-x C-e <left> 
<left> \ t t e s t C-e C-x C-e <left> <M-backspace> 
<M-backspace> <backspace> n i l C-e C-x C-e M-x r e 
p o <tab> r t <tab> e m a <tab> b u <tab> <return>

Recent messages:
Starting new Ispell process...
Ispell process killed
(Next local Ispell command will use american dictionary) [2 times]
Starting new Ispell process...
Mark set [2 times]
"test"
"test   test"
nil
Making completion list...
Loading emacsbug...done