* lisp/mpc.el (mpc-format): Trim Date to the year.

(mpc-songs-hashcons): Shorten the Date field.

lisp/ChangeLog

 2014-05-12  Stefan Monnier  <monnier@iro.umontreal.ca>
+	* mpc.el (mpc-format): Trim Date to the year.
+	(mpc-songs-hashcons): Shorten the Date field.
+
 	* emacs-lisp/nadvice.el (advice--interactive-form): Don't get fooled
 	into autoloading just because of a silly indirection.

lisp/mpc.el

@@ -1024,7 +1024,12 @@ If PLAYLIST is t or nil or missing, use the main playlist."
                          (when (and (null val) (eq tag 'Title))
                            (setq val (cdr (assq 'file info))))
                          (push `(equal ',val (cdr (assq ',tag info))) pred)
-                         val)))))
+                         (cond
+                          ((not (and (eq tag 'Date) (stringp val))) val)
+                          ;; For "date", only keep the year!
+                          ((string-match "[0-9]\\{4\\}" val)
+                           (match-string 0 val))
+                          (t val)))))))
                (space (when size
                         (setq size (string-to-number size))
                         (propertize " " 'display
@@ -1866,7 +1871,7 @@ This is used so that they can be compared with `eq', which is needed for
 `text-property-any'.")
 (defun mpc-songs-hashcons (name)
   (or (gethash name mpc-songs-hashcons) (puthash name name mpc-songs-hashcons)))
-(defcustom mpc-songs-format "%2{Disc--}%3{Track} %-5{Time} %25{Title} %20{Album} %20{Artist} %10{Date}"
+(defcustom mpc-songs-format "%2{Disc--}%3{Track} %-5{Time} %25{Title} %20{Album} %20{Artist} %5{Date}"
   "Format used to display each song in the list of songs."
   :type 'string)