Makes completion-at-point display completion candidates using the ido prompt.

idoで自動補完のプロジェクトです。

You can install the package from MELPA and autoload it:

(autoload 'ido-at-point-mode "ido-at-point")

Otherwise, if installed manually:

(require 'ido-at-point)

Then activate the mode:

(ido-at-point-mode)

Press M-tab or C-M-i to start completion.

If you fancy using helm instead of ido, re-define the ido-at-point-read function:

(require 'helm-mode)
(defun ido-at-point-read (choices common)
  (helm-comp-read "" choices
                  :initial-input common
                  :must-match t))

Works only in Emacs 24 and higher. Compatible with Emacs Lisp mode, Tern, Shell mode and hopefully many others.