Re: bidi, auto-composition-mode

[Angelo Graziosi]

Il 21/04/2010 5.09, Eli Zaretskii ha scritto:
> > Date: Wed, 21 Apr 2010 01:00:38 +0200
> > From: Angelo Graziosi<address@hidden>
> > CC: Eli Zaretskii<address@hidden>
> >
> > Eduard Wiebe wrote:
> > > I'm playing with the new bidi-feature, thanks Eli, and receive a
> > > strange result.
> > [...]
> > > the display order
> > > indeed reversed but some characters are duplicated (s. attachment).
> >
> > The same happens on Cygwin (GTK build of the trunk).
> >
> > Trying to write "This is a test", it writes, initially, two T instead of
> > one, so the result is
> >
> > This is a testT
> >                ^^^
>
> ??? The OP used Hebrew letters and auto-composed characters, but you
> used only ASCII, so this is a different problem.  Please tell me what
> did you type to get this displayed flushed to the right and T doubled.

OK. In my $HOME/.emacs.d/init.el file I have added this:

;; Use C-x 8 RET RIGHT-TO-LEFT MARK to write from right to left
(setq-default bidi-display-reordering t)

Then, in Emacs, I do this

C-x C-f foo.txt
C-x 8 RET RIGHT-TO-LEFT MARK

Then I start to type "This is a test" (all starts to the right, 
obviously). When I type the firt 'T', really in Emacs, I see two 'T',

TT

Then, I type 'h',

ThT

and so on

ThiT
ThisT
This iT
This isT
...
This is a testT

with the cursor always to the left of the most left 'T' (that near the 
'h', i.e. 'Th'). If now I do

M-x auto-composition-mode

the result is:

This is a test

without the most right 'T'!

I obtain the *same* results both on Cygwin and on GNU/Linux kubuntu 9.10 
(GTK builds rev. >= 99951).

Ciao,
Angelo.