[PATCH] emacs: Add a space after completed tag operations

[Tomi Ollila]

On Fri, Oct 25 2013, Austin Clements <amdragon at MIT.EDU> wrote:

> Previously, when a user fully completed a tag operation, they had to
> press space to begin entering another tag operation.  This is
> different from, say, shell file name completion, which typically
> inserts a space after an unambiguous completion under the assumption
> that the user will want to enter more input.
>
> This patch tweaks `notmuch-read-tag-changes' to act more like shell
> file name completion: after an unambiguous tag completion, it now
> inserts a space, ready and waiting for another tagging operation from
> the user.  This is backwards-compatible with old habits, since there's
> no harm in putting an extra space.
> ---

LGTM. Tested by hand-editing "(mapcar ...)" part to the code (re-evaluated
defun in *scratch* buffer) and it worked fine.

Tomi


>
> Just because of the context, this must be applied on top of the
> currently pending tag completion series
> id:"1382487721-31776-1-git-send-email-amdragon at mit.edu".  The change
> itself should be otherwise independent.
>
>  emacs/notmuch-tag.el | 12 ++++++++++--
>  1 file changed, 10 insertions(+), 2 deletions(-)
>
> diff --git a/emacs/notmuch-tag.el b/emacs/notmuch-tag.el
> index 7b21006..8b921f1 100644
> --- a/emacs/notmuch-tag.el
> +++ b/emacs/notmuch-tag.el
> @@ -229,8 +229,16 @@ initial input in the minibuffer."
>  	    (set-keymap-parent map crm-local-completion-map)
>  	    (define-key map " " 'self-insert-command)
>  	    map)))
> -    (delete "" (completing-read-multiple prompt
> -		tag-list nil nil initial-input
> +    (delete "" (completing-read-multiple
> +		prompt
> +		;; Append the separator to each completion so when the
> +		;; user completes a tag they can immediately begin
> +		;; entering another.  `completing-read-multiple'
> +		;; ultimately splits the input on crm-separator, so we
> +		;; don't need to strip this back off (we just need to
> +		;; delete "empty" entries caused by trailing spaces).
> +		(mapcar (lambda (tag-op) (concat tag-op crm-separator)) tag-list)
> +		nil nil initial-input
>  		'notmuch-read-tag-changes-history))))
>  
>  (defun notmuch-update-tags (tags tag-changes)
> -- 
> 1.8.4.rc3
>
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