[cocci] Restricting information search for header files

Hello,

I would like to extract some information also from header files.
It would be nice if a file search can be restricted accordingly.

Some information was provided for the clarification approach “Source code
analysis for header files”.
https://lore.kernel.org/cocci/alpine.DEB.2.10.1501071549410.3328@hadrien/

Did interests evolve any further also for such a development topic?

Regards,
Markus