Is there any rules or knack to write command rule file?

[tech11]

I'm writing one dracula lvs rule file, which include high-voltage and
low-voltage devices and all kinds of resistors and capacitances. It's one
incubus to finish it. I have to difine different layers and peel off
needless ones carefully in order to define one device. Since I have no more
experience, I'm afraid that I miss something and lead into troubles. Is
there any rules or knack to write drc or lvs rule file?

Thanks for your help!