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| -rw-r--r-- | emms-pl-manip.el | 131 |
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diff --git a/emms-pl-manip.el b/emms-pl-manip.el deleted file mode 100644 index 7cd12ec..0000000 --- a/emms-pl-manip.el +++ /dev/null @@ -1,131 +0,0 @@ -;;; emms-pl-manip.el --- Advanced playlist manipulation for EMMS - -;; Copyright (C) 2003, 2004, 2005, 2006 Free Software Foundation, Inc. - -;; Author: Ulrik Jensen <terryp@daimi.au.dk> -;; Keywords: - -;; This file is free software; you can redistribute it and/or modify -;; it under the terms of the GNU General Public License as published by -;; the Free Software Foundation; either version 2, or (at your option) -;; any later version. - -;; This file is distributed in the hope that it will be useful, -;; but WITHOUT ANY WARRANTY; without even the implied warranty of -;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -;; GNU General Public License for more details. - -;; You should have received a copy of the GNU General Public License -;; along with GNU Emacs; see the file COPYING. If not, write to the -;; Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, -;; Boston, MA 02110-1301 USA - -;;; Commentary: - -;; This file offers various advanced playlist-manipulations functions -;; for EMMS. - -;; Basically just load up this file, and check out some of these -;; functions: - -;; `emms-playlist-sort' - for sorting - -;; `emms-playlist-sort-by-info-artist' - if you have `emms-info', this -;; well let you sort based on the artist. - -;; Todo - -;; `emms-playlist-add-file' - adds a single file to the playlist. -;; `emms-playlist-add-dir' - adds a directory to the playlist - -;;; Code: - -(defvar emms-pl-manip-version "0.2 $Revision: 1.16 $" - "EMMS pl manip version string.") -;; $Id: emms-pl-manip.el,v 1.16 2005/07/09 11:56:00 forcer Exp $ - - -(defvar emms-playlist-get-file-name-function 'emms-track-name) - -(defun vector-sort (vec pred &optional beg end) - "Sort a vector VEC, using the predicate PRED, and return the new -vector. If BEG and END are specified, sort only this subrange. - -PRED is called with 2 elements and should return true, if the first is -less than the other." - (let ((begidx (or beg 0)) - (endidx (or end (1- (length vec))))) - (if (= begidx endidx) - ;; return a vector of this element - (make-vector 1 (aref vec begidx)) - ;; split the vector - (let ((mididx (/ (- endidx begidx) 2))) - ;; sort the two sub-vectors - (vector-sort vec pred begidx mididx) - (vector-sort vec pred mididx endidx) - ;; merge the vectors - *this* can't be - (let ((result (make-vector (length vec) nil)) - (lowidx begidx) - (highidx mididx) - (residx 0)) - ;; first merge while there are still elements left in both - (while (and (< lowidx mididx) (< highidx endidx)) - (if (funcall pred (aref vec lowidx) (aref vec highidx)) - (progn - (aset result residx (aref vec lowidx)) - (setq lowidx (1+ lowidx))) - (aset result residx (aref vec highidx)) - (setq highidx (1+ highidx))) - (setq residx (1+ residx))) - ;; now only one of the ranges have elements left, merge those - (let ((idx -1) - (idxterm endidx)) - (if (< lowidx mididx) - (setq idxterm mididx) - (setq idx mididx)) - (while (< idx idxterm) - (aset residx result (aref vec idx)) - (setq residx (1+ residx) - idx (1+ idx)))) - ;; return - result))))) - -(defun emms-pl-manip-sort (by pred) - "Sorts the EMMS-playlist, by applying BY as a function to each -filename in the list, and then comparing the results with PRED." - ;; convert to a list - (let ((listplaylist (append emms-playlist nil))) - ;; sort the list - (emms-playlist-set-playlist - (vconcat - (sort listplaylist - (lambda (arg-one arg-two) - (funcall pred - (funcall by arg-one) - (funcall by arg-two)))))))) - -(defun emms-pl-manip-sort-by-filename () - (interactive) - (emms-pl-manip-sort (lambda (x) x) 'string<)) - - -(defun emms-pl-manip-sort-by-name () - (interactive) - (emms-pl-manip-sort emms-playlist-get-file-name-function 'string<)) - -(defun emms-pl-manip-sort-by-info-artist () - "Sort the playlist, using " - (interactive) - (unless (featurep 'emms-info) - (error "You have to load emms-info before using emms-pl-manip-sort-by-info-artist.")) - (emms-pl-manip-sort (lambda (entry) - (emms-info-artist (emms-info-get entry))) - 'string<)) - -(defun emms-playlist-reshuffle () - "Reshuffle the playlist." - (interactive) - (emms-playlist-set-playlist (emms-playlist-shuffle))) - -(provide 'emms-pl-manip) -;;; emms-pl-manip.el ends here |