bug#7234: 24.0.50; strange message after text-scale-adjust

bug#7234: 24.0.50; strange message after text-scale-adjust

[Kenichi Handa]

When I start emacs as this:

% emacs -Q

and type:

  ESC : (text-scale-adjust 1) RET C-b

"(2)" is shown in the echo area.

With a file "~/temp" that contains only "abc\n", when I
start emacs as this:

% emacs -Q ~/temp

and type:

  ESC : (text-scale-adjust 1) RET C-f

"(6)" is shown.  When I type C-e instead of C-f above, "(5)"
is shown.  It seems that the number shown corresponds to the
character code of the last command.

This happesn both with emacs-23 and trunk branches.

---
Kenichi Handa
handa@m17n.org

bug#7234: 24.0.50; strange message after text-scale-adjust

[Eli Zaretskii]

> From: Kenichi Handa <handa@m17n.org>
> Date: Mon, 18 Oct 2010 13:09:29 +0900
> Cc: 
> 
>   ESC : (text-scale-adjust 1) RET C-b
> 
> "(2)" is shown in the echo area.
> 
>   ESC : (text-scale-adjust 1) RET C-f
> 
> "(6)" is shown.  When I type C-e instead of C-f above, "(5)"
> is shown.  It seems that the number shown corresponds to the
> character code of the last command.

That's because text-scale-adjust does at its end

    (push ev unread-command-events)))

and `push' returns its first argument.

bug#7234: 24.0.50; strange message after text-scale-adjust

[Kenichi Handa]

In article <E1P7jwu-0005UJ-KX@fencepost.gnu.org>, Eli Zaretskii <eliz@gnu.org> writes:

> > From: Kenichi Handa <handa@m17n.org>
> > Date: Mon, 18 Oct 2010 13:09:29 +0900
> > Cc: 
> > 
> >   ESC : (text-scale-adjust 1) RET C-b
> > 
> > "(2)" is shown in the echo area.
> > 
> >   ESC : (text-scale-adjust 1) RET C-f
> > 
> > "(6)" is shown.  When I type C-e instead of C-f above, "(5)"
> > is shown.  It seems that the number shown corresponds to the
> > character code of the last command.

> That's because text-scale-adjust does at its end

>     (push ev unread-command-events)))

> and `push' returns its first argument.

Ah, I see.  Thank you for the explanation.  I didn't realize
that when I typed C-f (or C-b), text-scale-adjust was not
yet finished.  It would be better that read-event call in
text-scale-adjust has some prompt:
 e.g. (read-event "+,-,0 for further adjustment: ")

Anyway, I'll close this bug.

---
Kenichi Handa
handa@m17n.org

bug#7234: 24.0.50; strange message after text-scale-adjust

[Miles Bader]

For non-interactive use, you should probably also be using
`text-scale-set' or `text-scale-increase' instead.

-Miles

-- 
Ocean, n. A body of water covering seven-tenths of a world designed for Man -
who has no gills.