C-x C-f blah.info opens the file in fundametal mode. I used apropos and found Info-mode which I thought might change from fundamental mode into Info mode, but that throws a lisp error.
How can I open a external/thirdparty *.info file in emacs so that I get the same bells and whistles as when I'm looking at M-x info (n for next, u for up, hyperlinks, etc..)? I'm sure this is obvious, but I can't figure it out.
Plain (info `file-name') opens file in info mode. (info) probably does something besides just setting Info-mode. So I would use something like this:
(defun info-mode ()
(interactive)
(let ((file-name (buffer-file-name)))
(kill-buffer (current-buffer))
(info file-name)))
(add-to-list 'auto-mode-alist '("\\.info\\'" . info-mode))