Re: non-breaking hyphens

[Eli Zaretskii <eliz@gnu.org>]

> From: Juri Linkov <juri@jurta.org>
> Cc: Eli Zaretskii <eliz@gnu.org>,  emacs-devel@gnu.org
> Date: Wed, 19 Oct 2011 11:27:15 +0300
> 
> > The right way to implement this feature, as brought up in the 2004
> > thread, would be to specify the affected characters with a char-table
> > rather than hardcoding them.  But we should probably leave such a change
> > till after 24.1.
> 
> Since glyphless characters (like "ZERO WIDTH NO-BREAK SPACE") are
> displayed now using a char-table, it makes sense to display confusable
> characters with a similar char-table (e.g. `confusable-char-display')
> where display methods could specify how to display them (face, etc.)
> 
> BTW, there is already a mapping in lisp/international/latin1-disp.el
> in `latin1-display-ucs-per-lynx' that can be used to match confusable
> characters.

Yes, we have several overlapping features that handle these and other
issues.  One other related "overlap" is glyphless characters display
vis-a-vis display tables; currently they contradict.  The current
situation is quite a mess, and we need to resolve it by designing a
coherent set of features to handle all that.