I can't seem to get abbrevs working in ess-mode when editing .R files.
I have ess-mode hook to activate abbrev-mode, but I get no expansion for my global abbrevs.
When I do
add-mode-abbrev I can add an abbrev, but it is not written to my abbrev file and of course doesn't get ever expanded (after
read-abbrev-file or restart).
If I by hand add something like this into my abbrev file and reload:
(define-abbrev-table 'ess-mode-abbrev-table '( ("-=" "<-" nil 0) ))
it doesn't work either.
How can I make ess-mode aware of my abbrevs?