Re: apt-utils

[Neil Woods <cnw+usenet@pobox.com>]

Sebastian Luque <sluque@mun.ca> writes:

> Hi,
>
> I'm getting the following error, both with 'emacs' or 'emacs -q -no-site-file':
>
>
> ,-----[ *Backtrace* (lines: 1 - 14) ]
> | Debugger entered--Lisp error: (invalid-function #<hash-table 'equal nil 21532/28048 0x9c6c6e8>)
> |   #<hash-table 'equal nil 21532/28048 0x9c6c6e8>("emacs" nil nil)
> |   ad-Orig-minibuffer-complete()
> |   minibuffer-complete(1)
> |   call-interactively(minibuffer-complete)
> |   ad-Orig-completing-read("Choose Debian package: " #<hash-table 'equal nil 21532/28048 0x9c6c6e8> nil t nil nil nil nil)
> |   completing-read("Choose Debian package: " #<hash-table 'equal nil 21532/28048 0x9c6c6e8> nil t nil)
> |   apt-utils-choose-package()
> |   apt-utils-show-package-1(t)
> |   apt-utils-show-package()
> | * call-interactively(apt-utils-show-package)
> |   execute-extended-command(nil)
> |   call-interactively(execute-extended-command)
> `-----
>
>
> System info:
>
> - GNU Emacs 21.4.1 (i386-pc-linux-gnu, X toolkit, Xaw3d scroll bars) of
>   2005-03-17 on trouble, modified by Debian
>
> - apt-utils version:
>   $Id: apt-utils.el,v 1.12 2004/11/26 02:49:03 psg Exp $

I've just tried it here with the same results. 

The problem is in the defconst form
'apt-utils-completing-read-hashtable-p' in the file apt-utils.el where a
test is made for the version of Emacs being used, and whether
completing-read supports hash table as input.

A quick fix would be to change the test as indicated:

(defconst apt-utils-completing-read-hashtable-p
  (and (not apt-utils-xemacs-p)
       (or
        ;; Next released version after 21.3 will support this
        (and
         (>= emacs-major-version 21)
         (>= emacs-minor-version 5))           ; <----- was 4
        (>= emacs-major-version 22)
        ;; As will the current pretest
        (string-match "\\..*\\..*\\." emacs-version)))
  "Non-nil if `completing-read' supports hash table as input.")

or simply to take out the major-version test < 22, on the likely
assumption that the next major release of Emacs will be version 22 (and
not 21.5).

Hope that helps.
-- 
Neil