Variable: icomplete-show-matches-on-no-input
icomplete-show-matches-on-no-input is a customizable variable defined
in icomplete.el.gz.
Value
nil
Documentation
When non-nil, show completions when first prompting for input.
This means to show completions even when the current minibuffer contents
is the same as was the initial input after minibuffer activation.
This also means that if you traverse the list of completions with
commands like C-. and just hit RET without typing any
characters, the match under point will be chosen instead of the
default.
This variable was added, or its default value changed, in Emacs 24.4.
Probably introduced at or before Emacs version 24.4.
Source Code
;; Defined in /usr/src/emacs/lisp/icomplete.el.gz
(defcustom icomplete-show-matches-on-no-input nil
"When non-nil, show completions when first prompting for input.
This means to show completions even when the current minibuffer contents
is the same as was the initial input after minibuffer activation.
This also means that if you traverse the list of completions with
commands like `C-.' and just hit RET without typing any
characters, the match under point will be chosen instead of the
default."
:type 'boolean
:version "24.4")