[luatex] Input/output and encoding.

[Manuel Pégourié-Gonnard]

Hi,

Let's try with the following variation of your example:

Le 01/08/2010 18:50, Paul Isambert a écrit :
> \directlua{%
>  function convert(buf)
>    return string.gsub(buf,"(.)",
>                       function (ch) return unicode.utf8.char(string.byte(ch))
>      end)
>  end
>  callback.register('process_input_buffer',convert)
>  }
> 
> \immediate\openout0=\jobname.xxx
> \immediate\write0{Héhé.}

\immediate\write0{\def\foo{Héhé.}} % instead

> \immediate\closeout0
> 
> \directlua{callback.register('process_input_buffer',nil)}
> \input \jobname.xxx

\show\foo % added

> \bye
> 
Now it looks working.

OTOH, a simple

Héhé.\bye

won't work.

So I think the problem is not at all due to playing with the callbacks, but only
to the default font missing the "é' character.

Manuel.