How to show all possible completions hippie-expand command creates in Emacs?

Question

I want to list all items that hippie-expand creates, then choose from them by moving the cursor and hitting RET. Is there any way to do this?

Answer 1

Here's what I'm using for this purpose:

(global-set-key (kbd "M-i") 'complete-with-helm)
(require 'ac-helm)
(require 'auto-complete-config)
(ac-config-default)
(defun ac-complete-with-helm-auto ()
  "Select `auto-complete' candidates by `helm'.
It is useful to narrow candidates."
  (interactive)
  (let ((c (ac-candidates)))
    (if (= (length c) 1)
        (ac-expand)
      (when ac-completing
        (with-helm-show-completion ac-point ac-last-point
          (helm :sources 'helm-source-auto-complete-candidates
                :buffer  "*helm auto-complete*"))))))
(defun complete-with-helm ()
  (interactive)
  (ignore-errors
    (call-interactively 'auto-complete)
    (call-interactively 'ac-complete-with-helm-auto)))

Necessary packages are auto-complete, helm, and ac-helm. All of them you can get from the package manager.

Answer 2

use company-mode. all the UI issues already resolved in company-mode