adding new pairwise potential to LAMMPS

Dear Steve and LAMMPS Users,

I want to add a new pairwise potentials to LAMMPS, are there any tools
which write C++ file such as pair_lj_cut automatically? I mean while
introduce formula then it writes related file.

Thanks a lot
Farrokh

No.
Why?
It is simple enough as it is already.
Axel.