[luatex] Detecting script

[Hans Hagen]

On 6/17/2016 5:26 PM, Javier Bezos wrote:
> I wrote:
>
>> I'll use pre_linebreak_filter then.
>
> Unfortunately, it doesn't work either. If I need to change
> the font for a short Arabic text, the isolated  forms are
> used. After tracing what pre_linebreak_filter receives it's
> clear at this point the contextual analysis has been already
> done. How can I fix it?

push your callback function in front of the font handler .. but that 
kind of control is highly macro package dependent (so best consult 
mailing lists that relate to latex)

Hans


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