Display tables and `tabify'

[Samuel Padgett]

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Please write in English, because the Emacs maintainers do not have
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In GNU Emacs 20.7.1 (i686-pc-linux-gnu, X toolkit)
 of Sun Mar  4 2001 on harpo.homeip.net
configured using `configure  --with-pop --with-x-toolkit=yes --with-x'

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

Sometimes I use the following to display TABs as `\t':

(aset standard-display-table ?\t (vector ?\\ ?t))

The `tabify' command, however, breaks when I do this.  For instance,
if I have a line that begins with two TAB characters (and no spaces),
the TABs are replaced by "    " (four spaces) after `tabify' runs.
The amount of whitespace in the buffer should stay the same.

(I guess it's debatable whether this is truly a bug or not since I've
monkeyed with the standard display table, but it'd be nice if this
worked.)

Thanks!


Recent input:
i d m e l i tab return i s t a d n backspace backspace 
n d a r - backspace d - d i tab return k k k k k k 
k k k k k k k k k k k k k k k k k k u SPC 1 SPC b SPC 
u up up up up up up up up up up down down down down 
down down down down down down down down up up up up 
up up up up up up up up up up up switch-frame M-x M-p 
return

Recent messages:
Loading emacsbug...
Loading emacsbug...done
Quit
Building index entries...
No more index matches for "standard-display-table".
First line in buffer [2 times]
Deleted 4 characters
 [2 times]
Type M-x switch-to-buffer-other-window RET to restore the other window.  M-C-v 
to scroll the help.
Beginning of buffer [3 times]