Hi @a13
I use 'arabic' for ''reverse-im-input-methods' in my '.emacs' file as following:
(require 'reverse-im)
(add-to-list 'reverse-im-input-methods "arabic")
(reverse-im-mode t)
Everything works fine except for C-b (backward-char) and M-b (backward-word) I got these messages:
C-لا is undefined
M-لا is undefined
'لا' in Arabic correspond to 'b' in English. I use GNU Emacs 25.3.1