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Display tables and `tabify'

From: Samuel Padgett
Subject: Display tables and `tabify'
Date: 10 Apr 2001 19:36:29 -0400
User-agent: Gnus/5.090001 (Oort Gnus v0.01) Emacs/20.7

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

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


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 

Recent messages:
Loading emacsbug...
Loading emacsbug...done
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]

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