bug#6365: bidi data structure inefficiencies

[Eli Zaretskii]

> From: Glenn Morris <rgm@gnu.org>
> Cc: 6365@debbugs.gnu.org
> Date: Thu, 06 Oct 2011 16:51:50 -0400
> 
> Eli Zaretskii wrote:
> 
> > Thanks for the critical review and suggestions.  I started a
> > discussion thread on emacs-devel about this, because I'm not sure
> > fixing this is a straight-forward matter.  I will implement whatever
> > conclusions are reached there as part of solving this bug report.
> 
> Did anything happen with this?

See the discussion that started here:

  https://lists.gnu.org/archive/html/emacs-devel/2010-06/msg00164.html

AFAIU, the conclusion was that there are no evident optimizations, and
that only profiling the current code against an alternative can tell
which one is better.

FWIW, I don't plan working o this any time soon.