Re: [emms-help] Sorting by natural order

[William Xu]

Matthew Kennedy <address@hidden> writes:

> Natural track order is the order in which you were meant to hear the
> tracks on a CD.  This means sort by album name *and then* by track
> number.

Nifty idea ! 

> Here's what I implemented to achieve a natural order sort.  It might
> be nice to include something like it in Emms though...

Thanks. I've added this to `emms-playlist-sort.el' and sent the
patch. Next time you may send a patch directly to forcer or
address@hidden

> (defun emms-sort-natural-order-less-p (a b)
>   "Sort two tracks by natural order.
> This is the order in which albums where intended to be played.
> ie. by album name and then by track number."
>   (or (emms-string> (emms-track-get a 'info-album)
>                   (emms-track-get b 'info-album))
>       (and (string= (emms-track-get a 'info-album)
>                   (emms-track-get b 'info-album))
>          (< (string-to-number (emms-track-get a 'info-tracknumber))
>             (string-to-number (emms-track-get b 'info-tracknumber))))))

Here, an error will occur in `string-to-number' when `emms-track-get'
returns nil. I've modified it to,

           (< (string-to-number (or (emms-track-get a 'info-tracknumber)
                                    "0"))
              (string-to-number (or (emms-track-get b 'info-tracknumber)
                                    "0"))))))

-- 
William