Path: utzoo!utgpu!jarvis.csri.toronto.edu!rutgers!shelby!agate!ucbvax!tut.cis.ohio-state.edu!EW09.NAS.NASA.GOV!raible
From: raible@EW09.NAS.NASA.GOV (Eric L. Raible)
Newsgroups: gnu.emacs.bug
Subject: bug in minibuffer-complete
Message-ID: <8907121827.AA11689@ew09.nas.nasa.gov>
Date: 12 Jul 89 18:27:19 GMT
Sender: daemon@tut.cis.ohio-state.edu
Reply-To: raible@orville.nas.nasa.gov
Distribution: gnu
Organization: GNUs Not Usenet
Lines: 23


The [no match] message from minibuffer-complete does not get displayed
in some circumstances.

This seems to be an old bug.  I verified it on two different
machines (BSD VAX and SGI 4D) in versions 18.50, 18.52, 18.54, 18.55.

Execute illustrate-no-match-bug for a demonstration.

(defun illustrate-no-match-bug ()
  (interactive)
  (let ((minibuffer-completion-table '(()))	; a map which has no matches
	(test-map (copy-keymap minibuffer-local-map)))
    (define-key test-map "a" 'test)
    (define-key test-map "b" 'test)
    (read-from-minibuffer "See that 'a' and 'b' have different behavior:"
			   "" test-map)))

(defun test ()
  (interactive)
  (if (eq last-command-char ?a)
      (message "We get the beep.  Where is the [no match] message??? "))
  (minibuffer-complete))