GNU bug report logs - #48764
mini-buffer completion

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From: jaime.escalante <at> gmx.com
To: 48764 <at> debbugs.gnu.org
Subject: bug#48764: mini-buffer completion
Date: Mon, 31 May 2021 22:16:26 +0200

`completing-read' prompts a user to select from a set of candidates, providing
mini-buffer completion to narrow and complete the user input.

But the mini-buffer does not provide the user with any indication that he can use
the "up" and "down" keys to navigate a list of settings.  It would be beneficial to
introduce some kind of glyph or indicator in the mini-buffer to make the user aware
that arrow keys can be used, and be described in the manual.

    (if current-prefix-arg
	(let* ( ($major-mode
		   '("org-mode" "texinfo-mode" "emacs-lisp-mode"
		     "lisp-mode" "f90-mode"))
	        ($mode (completing-read "Mode: " $major-mode
			 nil t nil 'ziggurat-bufr-history)) )
	  (funcall (intern $mode)))
      (funcall (intern (or mode "org-mode"))))))

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