Le 5 mai 2016 à 10:55, luigi scarso <luigi.scarso@gmail.com> a écrit :

> 
> 
> On Thu, Apr 28, 2016 at 4:08 PM, jfbu <jfbu@free.fr> wrote:
> Hi,
> 
> how should I go at the Plain TeX level about implementing
> the following glyph substitution which I formerly expressed
> in a font feature file:
> 
> Sorru for delay,  we were busy due
> the texlive deadline.
> 

no problem, thanks. I have since gotten an answer to my question at

https://github.com/lualatex/luaotfload/issues/347#issuecomment-215625928

regards
Jean-François