1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
|
;;; emms-playlist-sort.el --- sort emms playlist -*- lexical-binding: t; -*-
;; Copyright (C) 2005, 2006, 2007, 2008, 2009, 2018 Free Software Foundation, Inc.
;; Author: William Xu <william.xwl@gmail.com>
;; This file is part of EMMS.
;; EMMS 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 3, or (at your option)
;; any later version.
;;
;; EMMS 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 EMMS; if not, write to the Free Software Foundation,
;; Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.
;;; Code:
(require 'cl-lib)
(require 'emms-last-played)
(require 'emms-playlist-mode)
;;; User Customizations
(defgroup emms-playlist-sort nil
"Sorting Emacs Multimedia System playlists."
:prefix "emms-playlist-sort-"
:group 'emms)
(defcustom emms-playlist-sort-list '(info-artist info-album)
"Sorting list used by `emms-playlist-sort-by-list'.
Currently it understands the following fields: name info-artist
imfo-composer info-performer info-title info-album info-genre
info-playing-time info-tracknumber info-discnumber."
:type 'symbol
:group 'emms-playlist-sort)
(defcustom emms-playlist-sort-prefix "S"
"Prefix key sequence for `emms-playlist-sort-map'.
Remember to call `emms-playlist-sort-map-setup' if you modify it."
:type 'string
:group 'emms-playlist-sort)
;;; User Interfaces
(defmacro define-emms-playlist-sort (attribute)
"Macro for defining emms playlist sort functions on strings ."
`(defun ,(intern (format "emms-playlist-sort-by-%s" attribute)) ()
,(format "Sort emms playlist by %s, increasingly.
With a prefix argument, decreasingly." attribute)
(interactive)
(emms-playlist-sort
'(lambda (a b)
(funcall
(if current-prefix-arg 'emms-string> 'emms-string<)
(emms-track-get a (quote ,attribute))
(emms-track-get b (quote ,attribute)))))))
(define-emms-playlist-sort name)
(define-emms-playlist-sort info-artist)
(define-emms-playlist-sort info-composer)
(define-emms-playlist-sort info-performer)
(define-emms-playlist-sort info-title)
(define-emms-playlist-sort info-album)
(define-emms-playlist-sort info-year)
(define-emms-playlist-sort info-note)
(defun emms-playlist-sort-by-natural-order ()
"Sort emms playlist by natural order.
See `emms-sort-natural-order-less-p'."
(interactive)
(emms-playlist-sort 'emms-sort-natural-order-less-p))
(defun emms-playlist-sort-by-list ()
"Sort emms playlist by `emms-playlist-sort-list'.
The sort will be carried out until comparsion succeeds, increasingly."
(interactive)
(emms-playlist-sort 'emms-playlist-sort-by-list-p))
(defun emms-playlist-sort-by-last-played ()
"Sort emms playlist by last played time, increasingly.
With a prefix argument, decreasingly."
(interactive)
(emms-playlist-sort
'(lambda (a b)
(funcall
(if current-prefix-arg 'not 'identity)
(time-less-p
(or (emms-track-get a 'last-played) '(0 0 0))
(or (emms-track-get b 'last-played) '(0 0 0)))))))
(defun emms-playlist-sort-by-play-count ()
"Sort emms playlist by play-count, increasingly.
With a prefix argument, decreasingly."
(interactive)
(emms-playlist-sort
'(lambda (a b)
(funcall
(if current-prefix-arg 'not 'identity)
(< (or (emms-track-get a 'play-count) 0)
(or (emms-track-get b 'play-count) 0))))))
(defun emms-playlist-sort-by-file-extension ()
"Sort emms playlist by file extension, increasingly.
With a prefix argument, decreasingly."
(interactive)
(emms-playlist-sort
'(lambda (a b)
(funcall
(if current-prefix-arg 'emms-string> 'emms-string<)
(file-name-extension (emms-track-get a 'name))
(file-name-extension (emms-track-get b 'name))))))
(defun emms-playlist-sort-by-file-mtime ()
"Sort emms playlist by file mtime, newest first.
With a prefix argument, oldest first."
(interactive)
(emms-playlist-sort
'(lambda (a b)
(funcall
(if current-prefix-arg
'time-less-p
(lambda (t1 t2) (not (time-less-p t1 t2))))
(emms-info-track-file-mtime a)
(emms-info-track-file-mtime b)))))
(defvar emms-playlist-sort-map nil)
(defun emms-playlist-sort-map-setup ()
"Setup sort map with latest `emms-playlist-sort-prefix'."
(setq emms-playlist-sort-map
(let ((map (make-sparse-keymap)))
(define-key map (kbd "n") 'emms-playlist-sort-by-natural-order)
(define-key map (kbd "a") 'emms-playlist-sort-by-info-artist)
(define-key map (kbd "c") 'emms-playlist-sort-by-play-count)
(define-key map (kbd "b") 'emms-playlist-sort-by-info-album)
(define-key map (kbd "l") 'emms-playlist-sort-by-last-played)
(define-key map (kbd "t") 'emms-playlist-sort-by-info-title)
(define-key map (kbd "e") 'emms-playlist-sort-by-file-extension)
(define-key map (kbd "p") 'emms-playlist-sort-by-info-performer)
(define-key map (kbd "y") 'emms-playlist-sort-by-info-year)
(define-key map (kbd "o") 'emms-playlist-sort-by-info-note)
(define-key map (kbd "C") 'emms-playlist-sort-by-info-composer)
(define-key map (kbd "L") 'emms-playlist-sort-by-list)
(define-key map (kbd "N") 'emms-playlist-sort-by-name)
(define-key map (kbd "T") 'emms-playlist-sort-by-file-mtime)
map))
(define-key emms-playlist-mode-map
emms-playlist-sort-prefix emms-playlist-sort-map))
(setq emms-playlist-sort-map (emms-playlist-sort-map-setup))
;;; Low Level Functions
(defun emms-playlist-sort (predicate)
"Sort the playlist buffer by PREDICATE."
(emms-with-inhibit-read-only-t
(emms-playlist-ensure-playlist-buffer)
(let ((current (emms-playlist-selected-track))
(tracks (nreverse
(emms-playlist-tracks-in-region
(point-min) (point-max)))))
(delete-region (point-min) (point-max))
(run-hooks 'emms-playlist-cleared-hook)
(mapc 'emms-playlist-insert-track (sort tracks predicate))
(let ((pos (when current (text-property-any (point-min) (point-max)
'emms-track current))))
(if pos
(emms-playlist-select pos)
(emms-playlist-first)))
(goto-char (point-min)))))
(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."
(let ((album-a (emms-track-get a 'info-album))
(album-b (emms-track-get b 'info-album))
(discnum-a (string-to-number (or (emms-track-get a 'info-discnumber) "0")))
(discnum-b (string-to-number (or (emms-track-get b 'info-discnumber) "0")))
(tracknum-a (string-to-number (or (emms-track-get a 'info-tracknumber) "0")))
(tracknum-b (string-to-number (or (emms-track-get b 'info-tracknumber) "0"))))
(or (emms-string< album-a album-b)
(and album-a album-b
(string= album-a album-b)
(or (< discnum-a discnum-b)
(and (= discnum-a discnum-b)
(< tracknum-a tracknum-b)))))))
(defun emms-playlist-sort-by-list-p (a b)
(catch 'return
(dolist (info emms-playlist-sort-list)
(cl-case info
((name info-artist info-composer info-performer info-title info-album info-genre)
(when (emms-string< (emms-track-get a info)
(emms-track-get b info))
(throw 'return t)))
((info-playing-time)
(when (< (emms-track-get a info)
(emms-track-get b info))
(throw 'return t)))
((info-tracknumber info-discnumber)
(when (< (string-to-number (or (emms-track-get a info) "0"))
(string-to-number (or (emms-track-get b info) "0")))
(throw 'return t)))))))
(defun emms-string< (s1 s2)
(string< (downcase (or s1 "")) (downcase (or s2 ""))))
(defun emms-string> (s1 s2)
(let ((a (downcase (or s1 "")))
(b (downcase (or s2 ""))))
(not (or (string= a b) (string< a b)))))
(provide 'emms-playlist-sort)
;;; emms-playlist-sort.el ends here
|
