2 * This file is part of DisOrder.
3 * Copyright (C) 2004-2008 Richard Kettlewell
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
10 * This program is distributed in the hope that it will be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * General Public License for more details.
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
20 /** @file server/macros-disorder.c
21 * @brief DisOrder-specific expansions
24 #include "disorder-cgi.h"
26 /** @brief For error template */
27 char *dcgi_error_string;
29 /** @brief Return @p i as a string */
30 static const char *make_index(int i) {
33 byte_xasprintf(&s, "%d", i);
39 * Expands to the server's version string, or a (safe to use) error
40 * value if the server is unavailable or broken.
42 static int exp_server_version(int attribute((unused)) nargs,
43 char attribute((unused)) **args,
45 void attribute((unused)) *u) {
49 if(disorder_version(dcgi_client, (char **)&v))
50 v = "(cannot get version)";
52 v = "(server not running)";
53 return sink_writes(output, cgi_sgmlquote(v)) < 0 ? -1 : 0;
58 * Expands to the local version string.
60 static int exp_version(int attribute((unused)) nargs,
61 char attribute((unused)) **args,
63 void attribute((unused)) *u) {
64 return sink_writes(output,
65 cgi_sgmlquote(disorder_short_version_string)) < 0 ? -1 : 0;
70 * Expands to the base URL of the web interface.
72 static int exp_url(int attribute((unused)) nargs,
73 char attribute((unused)) **args,
75 void attribute((unused)) *u) {
76 return sink_writes(output,
77 cgi_sgmlquote(config->url)) < 0 ? -1 : 0;
82 * Expands to the UNQUOTED form of CGI argument NAME, or the empty string if
83 * there is no such argument. Use @argq for a quick way to quote the argument.
85 static int exp_arg(int attribute((unused)) nargs,
88 void attribute((unused)) *u) {
89 const char *s = cgi_get(args[0]);
92 return sink_writes(output, s) < 0 ? -1 : 0;
99 * Expands to the (quoted) form of CGI argument NAME, or the empty string if
100 * there is no such argument. Use @arg for the unquoted argument.
102 static int exp_argq(int attribute((unused)) nargs,
105 void attribute((unused)) *u) {
106 const char *s = cgi_get(args[0]);
109 return sink_writes(output, cgi_sgmlquote(s)) < 0 ? -1 : 0;
116 * Expands to the logged-in username (which might be "guest"), or to
117 * the empty string if not connected.
119 static int exp_user(int attribute((unused)) nargs,
120 char attribute((unused)) **args,
122 void attribute((unused)) *u) {
125 if(dcgi_client && (user = disorder_user(dcgi_client)))
126 return sink_writes(output, cgi_sgmlquote(user)) < 0 ? -1 : 0;
130 /* @part{TRACK|ID}{PART}{CONTEXT}
132 * Expands to a track name part.
134 * A track may be identified by name or by queue ID.
136 * CONTEXT may be omitted. If it is then 'display' is assumed.
138 * If the CONTEXT is 'short' then the 'display' part is looked up, and the
139 * result truncated according to the length defined by the short_display
140 * configuration directive.
142 static int exp_part(int nargs,
145 void attribute((unused)) *u) {
146 const char *track = args[0], *part = args[1];
147 const char *context = nargs > 2 ? args[2] : "display";
150 if(track[0] != '/') {
151 struct queue_entry *q = dcgi_findtrack(track);
159 && !disorder_part(dcgi_client, &s,
161 !strcmp(context, "short") ? "display" : context,
163 return sink_writes(output, cgi_sgmlquote(s)) < 0 ? -1 : 0;
169 * SGML-quotes STRING. Note that most expansion results are already suitable
170 * quoted, so this expansion is usually not required.
172 static int exp_quote(int attribute((unused)) nargs,
175 void attribute((unused)) *u) {
176 return sink_writes(output, cgi_sgmlquote(args[0])) < 0 ? -1 : 0;
181 * Expands to the name of the submitter of track ID, which must be a playing
182 * track, in the queue, or in the recent list.
184 static int exp_who(int attribute((unused)) nargs,
187 void attribute((unused)) *u) {
188 struct queue_entry *q = dcgi_findtrack(args[0]);
190 if(q && q->submitter)
191 return sink_writes(output, cgi_sgmlquote(q->submitter)) < 0 ? -1 : 0;
197 * Expands to the time a track started or is expected to start. The track must
198 * be a playing track, in the queue, or in the recent list.
200 static int exp_when(int attribute((unused)) nargs,
203 void attribute((unused)) *u) {
204 struct queue_entry *q = dcgi_findtrack(args[0]);
205 const struct tm *w = 0;
209 case playing_isscratch:
210 case playing_unplayed:
213 w = localtime(&q->expected);
216 case playing_no_player:
218 case playing_scratched:
219 case playing_started:
221 case playing_quitting:
223 w = localtime(&q->played);
227 return sink_printf(output, "%d:%02d", w->tm_hour, w->tm_min) < 0 ? -1 : 0;
229 return sink_writes(output, " ") < 0 ? -1 : 0;
234 * Expands to the length of a track, identified by its queue ID or its name.
235 * If it is the playing track (identified by ID) then the amount played so far
238 static int exp_length(int attribute((unused)) nargs,
241 void attribute((unused)) *u) {
242 struct queue_entry *q;
246 if(args[0][0] == '/')
247 /* Track identified by name */
250 /* Track identified by queue ID */
251 if(!(q = dcgi_findtrack(args[0])))
253 if(q->state == playing_started || q->state == playing_paused)
254 if(sink_printf(output, "%ld:%02ld/", q->sofar / 60, q->sofar % 60) < 0)
258 if(dcgi_client && disorder_length(dcgi_client, name, &length))
259 return sink_printf(output, "%ld:%02ld",
260 length / 60, length % 60) < 0 ? -1 : 0;
261 return sink_writes(output, " ") < 0 ? -1 : 0;
266 * Expands to "true" if track ID is removable (or scratchable, if it is the
267 * playing track) and "false" otherwise.
269 static int exp_removable(int attribute((unused)) nargs,
272 void attribute((unused)) *u) {
273 struct queue_entry *q = dcgi_findtrack(args[0]);
274 /* TODO would be better to reject recent */
276 if(!q || !dcgi_client)
277 return mx_bool_result(output, 0);
278 dcgi_lookup(DCGI_RIGHTS);
279 return mx_bool_result(output,
280 (q == dcgi_playing ? right_scratchable : right_removable)
281 (dcgi_rights, disorder_user(dcgi_client), q));
286 * Expands to "true" if track ID is movable and "false" otherwise.
288 * DIR (which is optional) should be a non-zero integer. If it is negative
289 * then the intended move is down (later in the queue), if it is positive then
290 * the intended move is up (earlier in the queue). The first track is not
291 * movable up and the last track not movable down.
293 static int exp_movable(int nargs,
296 void attribute((unused)) *u) {
297 struct queue_entry *q = dcgi_findtrack(args[0]);
298 /* TODO would be better to recent playing/recent */
300 if(!q || !dcgi_client)
301 return mx_bool_result(output, 0);
303 const long dir = atoi(args[1]);
305 if(dir > 0 && q == dcgi_queue)
306 return mx_bool_result(output, 0);
307 if(dir < 0 && q->next == 0)
308 return mx_bool_result(output, 0);
310 dcgi_lookup(DCGI_RIGHTS);
311 return mx_bool_result(output,
312 right_movable(dcgi_rights,
313 disorder_user(dcgi_client),
317 /* @playing{TEMPLATE}
319 * Expands to TEMPLATE, with:
320 * - @id expanded to the queue ID of the playing track
321 * - @track expanded to its UNQUOTED name
323 * If no track is playing expands to nothing.
325 * TEMPLATE is optional. If it is left out then instead expands to the queue
326 * ID of the playing track.
328 static int exp_playing(int nargs,
329 const struct mx_node **args,
332 dcgi_lookup(DCGI_PLAYING);
336 return sink_writes(output, dcgi_playing->id) < 0 ? -1 : 0;
337 return mx_expand(mx_rewritel(args[0],
338 "id", dcgi_playing->id,
339 "track", dcgi_playing->track,
346 * For each track in the queue, expands TEMPLATE with the following expansions:
347 * - @id to the queue ID of the track
348 * - @track to the UNQUOTED track name
349 * - @index to the track number from 0
350 * - @parity to "even" or "odd" alternately
351 * - @first to "true" on the first track and "false" otherwise
352 * - @last to "true" on the last track and "false" otherwise
354 static int exp_queue(int attribute((unused)) nargs,
355 const struct mx_node **args,
358 struct queue_entry *q;
361 dcgi_lookup(DCGI_QUEUE);
362 for(q = dcgi_queue, i = 0; q; q = q->next, ++i)
363 if((rc = mx_expand(mx_rewritel(args[0],
366 "index", make_index(i),
367 "parity", i % 2 ? "odd" : "even",
368 "first", q == dcgi_queue ? "true" : "false",
369 "last", q->next ? "false" : "true",
378 * For each track in the recently played list, expands TEMPLATE with the
379 * following expansions:
380 * - @id to the queue ID of the track
381 * - @track to the UNQUOTED track name
382 * - @index to the track number from 0
383 * - @parity to "even" or "odd" alternately
384 * - @first to "true" on the first track and "false" otherwise
385 * - @last to "true" on the last track and "false" otherwise
387 static int exp_recent(int attribute((unused)) nargs,
388 const struct mx_node **args,
391 struct queue_entry *q;
394 dcgi_lookup(DCGI_RECENT);
395 for(q = dcgi_recent, i = 0; q; q = q->next, ++i)
396 if((rc = mx_expand(mx_rewritel(args[0],
399 "index", make_index(i),
400 "parity", i % 2 ? "odd" : "even",
401 "first", q == dcgi_recent ? "true" : "false",
402 "last", q->next ? "false" : "true",
411 * For each track in the newly added list, expands TEMPLATE wit the following
413 * - @track to the UNQUOTED track name
414 * - @index to the track number from 0
415 * - @parity to "even" or "odd" alternately
416 * - @first to "true" on the first track and "false" otherwise
417 * - @last to "true" on the last track and "false" otherwise
419 * Note that unlike @playing, @queue and @recent which are otherwise
420 * superficially similar, there is no @id sub-expansion here.
422 static int exp_new(int attribute((unused)) nargs,
423 const struct mx_node **args,
428 dcgi_lookup(DCGI_NEW);
429 /* TODO perhaps we should generate an ID value for tracks in the new list */
430 for(i = 0; i < dcgi_nnew; ++i)
431 if((rc = mx_expand(mx_rewritel(args[0],
432 "track", dcgi_new[i],
433 "index", make_index(i),
434 "parity", i % 2 ? "odd" : "even",
435 "first", i == 0 ? "true" : "false",
436 "last", i == dcgi_nnew - 1 ? "false" : "true",
445 * Expands to the volume in a given channel. CHANNEL must be "left" or
448 static int exp_volume(int attribute((unused)) nargs,
451 void attribute((unused)) *u) {
452 dcgi_lookup(DCGI_VOLUME);
453 return sink_printf(output, "%d",
454 !strcmp(args[0], "left")
455 ? dcgi_volume_left : dcgi_volume_right) < 0 ? -1 : 0;
460 * Expands to "true" if there is a playing track, otherwise "false".
462 static int exp_isplaying(int attribute((unused)) nargs,
463 char attribute((unused)) **args,
465 void attribute((unused)) *u) {
466 dcgi_lookup(DCGI_PLAYING);
467 return mx_bool_result(output, !!dcgi_playing);
472 * Expands to "true" if there the queue is nonempty, otherwise "false".
474 static int exp_isqueue(int attribute((unused)) nargs,
475 char attribute((unused)) **args,
477 void attribute((unused)) *u) {
478 dcgi_lookup(DCGI_QUEUE);
479 return mx_bool_result(output, !!dcgi_queue);
484 * Expands to "true" if there the recently played list is nonempty, otherwise
487 static int exp_isrecent(int attribute((unused)) nargs,
488 char attribute((unused)) **args,
490 void attribute((unused)) *u) {
491 dcgi_lookup(DCGI_RECENT);
492 return mx_bool_result(output, !!dcgi_recent);
497 * Expands to "true" if there the newly added track list is nonempty, otherwise
500 static int exp_isnew(int attribute((unused)) nargs,
501 char attribute((unused)) **args,
503 void attribute((unused)) *u) {
504 dcgi_lookup(DCGI_NEW);
505 return mx_bool_result(output, !!dcgi_nnew);
510 * Expands to a track preference.
512 static int exp_pref(int attribute((unused)) nargs,
515 void attribute((unused)) *u) {
518 if(dcgi_client && !disorder_get(dcgi_client, args[0], args[1], &value))
519 return sink_writes(output, cgi_sgmlquote(value)) < 0 ? -1 : 0;
523 /* @prefs{TRACK}{TEMPLATE}
525 * For each track preference of track TRACK, expands TEMPLATE with the
526 * following expansions:
527 * - @name to the UNQUOTED preference name
528 * - @index to the preference number from 0
529 * - @value to the UNQUOTED preference value
530 * - @parity to "even" or "odd" alternately
531 * - @first to "true" on the first preference and "false" otherwise
532 * - @last to "true" on the last preference and "false" otherwise
534 * Use @quote to quote preference names and values where necessary; see below.
536 static int exp_prefs(int attribute((unused)) nargs,
537 const struct mx_node **args,
541 struct kvp *k, *head;
544 if((rc = mx_expandstr(args[0], &track, u, "argument #0 (TRACK)")))
546 if(!dcgi_client || disorder_prefs(dcgi_client, track, &head))
548 for(k = head, i = 0; k; k = k->next, ++i)
549 if((rc = mx_expand(mx_rewritel(args[1],
550 "index", make_index(i),
551 "parity", i % 2 ? "odd" : "even",
554 "first", k == head ? "true" : "false",
555 "last", k->next ? "false" : "true",
562 /* @transform{TRACK}{TYPE}{CONTEXT}
564 * Transforms a track name (if TYPE is "track") or directory name (if type is
565 * "dir"). CONTEXT should be the context, if it is left out then "display" is
568 static int exp_transform(int nargs,
571 void attribute((unused)) *u) {
572 const char *t = trackname_transform(args[1], args[0],
573 (nargs > 2 ? args[2] : "display"));
574 return sink_writes(output, cgi_sgmlquote(t)) < 0 ? -1 : 0;
579 * Expands to "true" if playing is enabled, otherwise "false".
581 static int exp_enabled(int attribute((unused)) nargs,
582 char attribute((unused)) **args,
584 void attribute((unused)) *u) {
588 disorder_enabled(dcgi_client, &e);
589 return mx_bool_result(output, e);
594 * Expands to "true" if random play is enabled, otherwise "false".
596 static int exp_random_enabled(int attribute((unused)) nargs,
597 char attribute((unused)) **args,
599 void attribute((unused)) *u) {
603 disorder_random_enabled(dcgi_client, &e);
604 return mx_bool_result(output, e);
607 /* @trackstate{TRACK}
609 * Expands to "playing" if TRACK is currently playing, or "queue" if it is in
610 * the queue, otherwise to nothing.
612 static int exp_trackstate(int attribute((unused)) nargs,
615 void attribute((unused)) *u) {
617 struct queue_entry *q;
621 if(disorder_resolve(dcgi_client, &track, args[0]))
623 dcgi_lookup(DCGI_PLAYING);
624 if(dcgi_playing && !strcmp(track, dcgi_playing->track))
625 return sink_writes(output, "playing") < 0 ? -1 : 0;
626 dcgi_lookup(DCGI_QUEUE);
627 for(q = dcgi_queue; q; q = q->next)
628 if(!strcmp(track, q->track))
629 return sink_writes(output, "queued") < 0 ? -1 : 0;
635 * Expands to an UNQUOTED URL which points back to the current page. (NB it
636 * might not be byte for byte identical - for instance, CGI arguments might be
639 static int exp_thisurl(int attribute((unused)) nargs,
640 char attribute((unused)) **args,
642 void attribute((unused)) *u) {
643 return sink_writes(output, cgi_thisurl(config->url)) < 0 ? -1 : 0;
648 * Expands to an UNQUOTED name for the TRACK that is not an alias, or to
649 * nothing if it is not a valid track.
651 static int exp_resolve(int attribute((unused)) nargs,
654 void attribute((unused)) *u) {
657 if(dcgi_client && !disorder_resolve(dcgi_client, &r, args[0]))
658 return sink_writes(output, r) < 0 ? -1 : 0;
664 * Expands to "true" if the playing track is paused, to "false" if it is
665 * playing (or if there is no playing track at all).
667 static int exp_paused(int attribute((unused)) nargs,
668 char attribute((unused)) **args,
670 void attribute((unused)) *u) {
671 dcgi_lookup(DCGI_PLAYING);
672 return mx_bool_result(output, (dcgi_playing
673 && dcgi_playing->state == playing_paused));
678 * Expands to the current state of track ID.
680 static int exp_state(int attribute((unused)) nargs,
683 void attribute((unused)) *u) {
684 struct queue_entry *q = dcgi_findtrack(args[0]);
687 return sink_writes(output, playing_states[q->state]) < 0 ? -1 : 0;
691 /* @right{RIGHT}{WITH-RIGHT}{WITHOUT-RIGHT}@
693 * Expands to WITH-RIGHT if the current user has right RIGHT, otherwise to
694 * WITHOUT-RIGHT. The WITHOUT-RIGHT argument may be left out.
696 * If both WITH-RIGHT and WITHOUT-RIGHT are left out then expands to "true" if
697 * the user has the right and "false" otherwise.
699 * If there is no connection to the server then expands to nothing (in all
702 static int exp_right(int nargs,
703 const struct mx_node **args,
712 dcgi_lookup(DCGI_RIGHTS);
713 if((rc = mx_expandstr(args[0], &right, u, "argument #0 (RIGHT)")))
715 if(parse_rights(right, &r, 1/*report*/))
717 /* Single-argument form */
719 return mx_bool_result(output, !!(r & dcgi_rights));
720 /* Multiple argument form */
722 return mx_expand(args[1], output, u);
724 return mx_expand(args[2], output, u);
728 /* @userinfo{PROPERTY}
730 * Expands to the named property of the current user.
732 static int exp_userinfo(int attribute((unused)) nargs,
735 void attribute((unused)) *u) {
739 && !disorder_userinfo(dcgi_client, disorder_user(dcgi_client),
741 return sink_writes(output, v) < 0 ? -1 : 0;
747 * Expands to the latest error string.
749 static int exp_error(int attribute((unused)) nargs,
750 char attribute((unused)) **args,
752 void attribute((unused)) *u) {
753 return sink_writes(output, dcgi_error_string) < 0 ? -1 : 0;
758 * Expands to the URL of the image called NAME.
760 * Firstly if there is a label called images.NAME then the image stem will be
761 * the value of that label. Otherwise the stem will be NAME.png.
763 * If the label url.static exists then it will give the base URL for images.
764 * Otherwise the base url will be /disorder/.
766 static int exp_image(int attribute((unused)) nargs,
769 void attribute((unused)) *u) {
770 const char *url, *stem;
773 /* Compute the stem */
774 byte_xasprintf(&labelname, "images.%s", args[0]);
775 if(option_label_exists(labelname))
776 stem = option_label(labelname);
778 byte_xasprintf((char **)&stem, "%s.png", args[0]);
779 /* If the stem looks like it's reasonalby complete, use that */
781 || !strncmp(stem, "http:", 5)
782 || !strncmp(stem, "https:", 6))
785 /* Compute the URL */
786 if(option_label_exists("url.static"))
787 byte_xasprintf((char **)&url, "%s/%s",
788 option_label("url.static"), stem);
790 /* Default base is /disorder */
791 byte_xasprintf((char **)&url, "/disorder/%s", stem);
793 return sink_writes(output, cgi_sgmlquote(url)) < 0 ? -1 : 0;
796 /** @brief Entry in a list of tracks or directories */
798 /** @brief Track name */
800 /** @brief Sort key */
802 /** @brief Display key */
806 /** @brief Compare two @ref entry objects */
807 static int compare_entry(const void *a, const void *b) {
808 const struct entry *ea = a, *eb = b;
810 return compare_tracks(ea->sort, eb->sort,
811 ea->display, eb->display,
812 ea->track, eb->track);
815 /** @brief Implementation of exp_tracks() and exp_dirs() */
816 static int exp__files_dirs(int nargs,
817 const struct mx_node **args,
821 int (*fn)(disorder_client *client,
826 char **tracks, *dir, *re;
828 const struct mx_node *m;
831 if((rc = mx_expandstr(args[0], &dir, u, "argument #0 (DIR)")))
834 if((rc = mx_expandstr(args[1], &re, u, "argument #1 (RE)")))
844 if(fn(dcgi_client, dir, re, &tracks, &ntracks))
846 /* Sort it. NB trackname_transform() does not go to the server. */
847 e = xcalloc(ntracks, sizeof *e);
848 for(n = 0; n < ntracks; ++n) {
849 e->track = tracks[n];
850 e[n].track = tracks[n];
851 e[n].sort = trackname_transform(type, tracks[n], "sort");
852 e[n].display = trackname_transform(type, tracks[n], "display");
854 qsort(e, ntracks, sizeof (struct entry), compare_entry);
855 /* Expand the subsiduary templates. We chuck in @sort and @display because
856 * it is particularly easy to do so. */
857 for(n = 0; n < ntracks; ++n)
858 if((rc = mx_expand(mx_rewritel(m,
859 "index", make_index(n),
860 "parity", n % 2 ? "odd" : "even",
862 "first", n == 0 ? "true" : "false",
863 "last", n + 1 == ntracks ? "false" : "true",
865 "display", e[n].display,
873 /** @tracks{DIR}{RE}{TEMPLATE}
875 * For each track below DIR, expands TEMPLATE with the
876 * following expansions:
877 * - @track to the UNQUOTED track name
878 * - @index to the track number from 0
879 * - @parity to "even" or "odd" alternately
880 * - @first to "true" on the first track and "false" otherwise
881 * - @last to "true" on the last track and "false" otherwise
882 * - @sort to the sort key for this track
883 * - @display to the UNQUOTED display string for this track
885 * RE is optional and if present is the regexp to match against.
887 static int exp_tracks(int nargs,
888 const struct mx_node **args,
891 return exp__files_dirs(nargs, args, output, u, "track", disorder_files);
894 /** @dirs{DIR}{RE}{TEMPLATE}
896 * For each directory below DIR, expands TEMPLATE with the
897 * following expansions:
898 * - @track to the UNQUOTED directory name
899 * - @index to the directory number from 0
900 * - @parity to "even" or "odd" alternately
901 * - @first to "true" on the first directory and "false" otherwise
902 * - @last to "true" on the last directory and "false" otherwise
903 * - @sort to the sort key for this directory
904 * - @display to the UNQUOTED display string for this directory
906 * RE is optional and if present is the regexp to match against.
908 static int exp_dirs(int nargs,
909 const struct mx_node **args,
912 return exp__files_dirs(nargs, args, output, u, "dir", disorder_directories);
915 /** @brief Register DisOrder-specific expansions */
916 void dcgi_expansions(void) {
917 mx_register("arg", 1, 1, exp_arg);
918 mx_register("argq", 1, 1, exp_argq);
919 mx_register("enabled", 0, 0, exp_enabled);
920 mx_register("error", 0, 0, exp_error);
921 mx_register("image", 1, 1, exp_image);
922 mx_register("isnew", 0, 0, exp_isnew);
923 mx_register("isplaying", 0, 0, exp_isplaying);
924 mx_register("isplaying", 0, 0, exp_isqueue);
925 mx_register("isrecent", 0, 0, exp_isrecent);
926 mx_register("length", 1, 1, exp_length);
927 mx_register("movable", 1, 1, exp_movable);
928 mx_register("part", 2, 3, exp_part);
929 mx_register("paused", 0, 0, exp_paused);
930 mx_register("pref", 2, 2, exp_pref);
931 mx_register("quote", 1, 1, exp_quote);
932 mx_register("random-enabled", 0, 0, exp_random_enabled);
933 mx_register("removable", 1, 1, exp_removable);
934 mx_register("resolve", 1, 1, exp_resolve);
935 mx_register("server-version", 0, 0, exp_server_version);
936 mx_register("state", 1, 1, exp_state);
937 mx_register("thisurl", 0, 0, exp_thisurl);
938 mx_register("trackstate", 1, 1, exp_trackstate);
939 mx_register("transform", 2, 3, exp_transform);
940 mx_register("url", 0, 0, exp_url);
941 mx_register("user", 0, 0, exp_user);
942 mx_register("userinfo", 1, 1, exp_userinfo);
943 mx_register("version", 0, 0, exp_version);
944 mx_register("volume", 1, 1, exp_volume);
945 mx_register("when", 1, 1, exp_when);
946 mx_register("who", 1, 1, exp_who);
947 mx_register_magic("dirs", 2, 3, exp_dirs);
948 mx_register_magic("new", 1, 1, exp_new);
949 mx_register_magic("playing", 0, 1, exp_playing);
950 mx_register_magic("prefs", 2, 2, exp_prefs);
951 mx_register_magic("queue", 1, 1, exp_queue);
952 mx_register_magic("recent", 1, 1, exp_recent);
953 mx_register_magic("right", 1, 3, exp_right);
954 mx_register_magic("tracks", 2, 3, exp_tracks);