I'm using GNU Emacs 22.1.1 (i486-pc-linux-gnu) of 2008-05-03 on terranova,
modified by Ubuntu and previous versions used to accept a space or tab for
filename completion, but now require a tab only.

How do I get back to the old behavior so I can use my spacebar again for
filename completion? I'm sure there's some setting to tweak.

`C-h C-f' gives you the Emacs FAQ.

Then, `i SPC TAB' and choose `SPC file name completion'. You'll see this:

| 10.19 Why doesn't SPC complete file names anymore?
| ==================================================
|
| Starting with Emacs 22.1, `SPC' no longer completes file names in the
| minibuffer, so that file names with embedded spaces could be typed
| without the need to quote the spaces.
|
| You can get the old behavior by binding `SPC' to
| `minibuffer-complete-word' in the minibuffer, as follows:
|
| (define-key minibuffer-local-filename-completion-map (kbd "SPC")
| 'minibuffer-complete-word)
|
| (define-key minibuffer-local-must-match-filename-map (kbd "SPC")
| 'minibuffer-complete-word)

On Mon, 15 Sep 2008 22:24:46 +0000 (UTC) Daina Pettit wrote:

(define-key minibuffer-local-filename-completion-map
(kbd "SPC") #'minibuffer-complete)

David

In article gnu.org>,
David Hansen gmx.net> wrote:

That did the trick. Thanks!

Daina Pettit wrote:

`C-h C-n' aka `M-x view-emacs-news' reveals:

* Incompatible Editing Changes in Emacs 22.1
...
** When Emacs prompts for file names, SPC no longer completes the file name.
This is so filenames with embedded spaces could be input without the
need to quote the space with a C-q. The underlying changes in the
keymaps that are active in the minibuffer are described below under
"New keymaps for typing file names".

If you want the old behavior back, add these two key bindings to your
~/.emacs init file: