Here is a list of the completion commands defined in the minibuffer when completion is available.
Complete the text in the minibuffer as much as possible
Complete the minibuffer text, but don’t go beyond one word
Submit the text in the minibuffer as the argument, possibly completing
first as described below (
Print a list of all possible completions of the text in the minibuffer
Select the highlighted text under the mouse as a minibuffer response.
When the minibuffer is being used to prompt the user for a completion,
any valid completions which are visible on the screen will be highlighted
when the mouse moves over them. Clicking button2 will select the
highlighted completion and exit the minibuffer.
SPC completes much like TAB, but never goes beyond the
next hyphen or space. If you have ‘auto-f’ in the minibuffer and
type SPC, it finds that the completion is ‘auto-fill-mode’,
but it stops completing after ‘fill-’. This gives
‘auto-fill-’. Another SPC at this point completes all the
way to ‘auto-fill-mode’. SPC in the minibuffer when
completion is available runs the command
Here are some commands you can use to choose a completion from a window that displays a list of completions:
Clicking mouse button 2 on a completion in the list of possible
completions chooses that completion (
You normally use this command while point is in the minibuffer; but you
must click in the list of completions, not in the minibuffer itself.
Typing PRIOR or M-v, while in the minibuffer, selects the
window showing the completion list buffer
switch-to-completions). This paves the way for using the
commands below. (Selecting that window in the usual ways has the same
effect, but this way is more convenient.)
Typing RET in the completion list buffer chooses the
completion that point is in or next to (
use this command, you must first switch windows to the window that shows
the list of completions.
Typing the right-arrow key RIGHT, TAB or C-f in
the completion list buffer moves point to the following completion
Typing the left-arrow key LEFT or C-b in the
completion list buffer moves point toward the beginning of the buffer,
to the previous completion (