+ (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