Version 1.3.0 of package Wisitoken-Grammar-Mode has just been released in GNU ELPA. You can now find it in M-x list-packages RET.
Wisitoken-Grammar-Mode describes itself as: ============================================== Major mode for editing WisiToken grammar files ============================================== More at https://elpa.gnu.org/packages/wisitoken-grammar-mode.html ## Summary: ## Recent NEWS: [Not provided 🙁]