Eli Zaretskii <eliz@gnu.org> writes:

>> From: David Kastrup <dak@gnu.org>
>> Date: Wed, 05 May 2010 17:49:35 +0200
>> 
>> Uh, with the current version of Emacs
>> 
>> GNU Emacs 24.0.50.3 (i686-pc-linux-gnu, GTK+ Version 2.20.0) of 2010-05-05 on lola
>> 
>> I tried some copy&paste of Yiddish text including diacriticals into
>> Emacs, with the result that without bidi-display-reordering set, the
>> diacriticals were not composed with the letters, and with
>> bidi-display-reordering set, they were composed just fine.
>
> Please show a recipe to reproduce this.  Compositions with reordering
> is something that wasn't coded yet (I think that's what Handa-san
> works on now), so I'm not sure how this could work.  In any case,
> compositions without reordering ought to work.

Copy and paste from <URL:http://en.wikipedia.org/wiki/Yiddish_language>
into a buffer.

Pasting

    the language is called לשון־אַשכּנז  (loshn-ashkenaz

with bidi-display-reordering unset, I get