Ido and Vimpulse/Viper and C-p, C-n

[Nikolai Weibull]

Is there any way of getting C-p and C-n do ido-prev-match and
ido-next-match in Ido mode?

I’ve tried with the following, but it doesn’t work:

(add-hook 'ido-setup-hook
          (lambda ()
            (define-key ido-completion-map "\C-p" 'ido-prev-match)
            (define-key ido-completion-map "\C-n" 'ido-next-match)
            (viper-add-local-keys 'insert-state '(("\C-p" . ido-prev-match)
                                                  ("\C-n" . ido-next-match)))))