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1 | .\" |
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2 | .\" Copyright (C) 2004, 2005, 2006, 2007 Richard Kettlewell |
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3 | .\" |
4 | .\" This program is free software; you can redistribute it and/or modify |
5 | .\" it under the terms of the GNU General Public License as published by |
6 | .\" the Free Software Foundation; either version 2 of the License, or |
7 | .\" (at your option) any later version. |
8 | .\" |
9 | .\" This program is distributed in the hope that it will be useful, but |
10 | .\" WITHOUT ANY WARRANTY; without even the implied warranty of |
11 | .\" MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
12 | .\" General Public License for more details. |
13 | .\" |
14 | .\" You should have received a copy of the GNU General Public License |
15 | .\" along with this program; if not, write to the Free Software |
16 | .\" Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 |
17 | .\" USA |
18 | .\" |
19 | .TH disorder_config 5 |
20 | .SH NAME |
21 | pkgconfdir/config - DisOrder jukebox configuration |
22 | .SH DESCRIPTION |
23 | The purpose of DisOrder is to organize and play digital audio files, under the |
24 | control of multiple users. \fIpkgconfdir/config\fR is the primary |
25 | configuration file but this man page currently documents all of its various |
26 | configuration files. |
27 | .SS Tracks |
28 | DisOrder can be configured with multiple collections of tracks, indexing them |
29 | by their filename, and picking players on the basis of filename patterns (for |
30 | instance, "*.mp3"). |
31 | .PP |
32 | Although the model is of filenames, it is not inherent that there are |
33 | corresponding real files - merely that they can be interpreted by the chosen |
34 | player. See \fBdisorder\fR(3) for more details about this. |
35 | .PP |
36 | Each track can have a set of preferences associated with it. These are simple |
37 | key-value pairs; they can be used for anything you like, but a number of keys |
38 | have specific meanings. See \fBdisorder\fR(1) for more details about these. |
39 | .SS "Track Names" |
40 | Track names are derived from filenames under the control of regular |
41 | expressions, rather than attempting to interpret format-specific embedded name |
42 | information. They can be overridden by setting preferences. |
43 | .PP |
44 | Names for display are distinguished from names for sorting, so with the right |
45 | underlying filenames an album can be displayed in its original order even if |
46 | the displayed track titles are not lexically sorted. |
47 | .SS "Server State" |
48 | A collection of global preferences define various bits of server state: whether |
49 | random play is enabled, what tags to check for when picking at random, etc. |
50 | .SS "Users And Access Control" |
51 | DisOrder distinguishes between multiple users. This is for access control and |
52 | reporting, not to provide different views of the world: i.e. preferences and so |
53 | on are global. |
54 | .PP |
55 | It's possible to restrict a small number of operations to a specific subset of |
56 | users. However, it is assumed that every user is supposed to be able to do |
57 | most operations - since the users are all sharing the same audio environment |
58 | they are expected to cooperate with each other. |
59 | .PP |
60 | Access control is entirely used-based. If you configure DisOrder to listen for |
61 | TCP/IP connections then it will accept a connection from anywhere provided the |
62 | right password is available. Passwords are never transmitted over TCP/IP |
63 | connections in clear, but everything else is. The expected model is that |
64 | host-based access control is imposed at the network layer. |
65 | .SS "Web Interface" |
66 | The web interface is controlled by a collection of template files, one for each |
67 | kind of page, and a collection of option files. These are split up and |
68 | separate from the main configuration file to make it more convenient to |
69 | override specific bits. |
70 | .PP |
71 | The web interface connects to the DisOrder server like any other user, though |
72 | it is given a special privilege to "become" any other user. (Thus, any process |
73 | with the same UID as the web interface is very powerful as far as DisOrder |
74 | goes.) |
75 | .PP |
76 | Access control to the web interface is (currently) separate from DisOrder's own |
77 | access control (HTTP authentication is required) but uses the same user |
78 | namespace. |
79 | .SH "CONFIGURATION FILE" |
80 | .SS "General Syntax" |
81 | Lines are split into fields separated by whitespace (space, tab, line |
82 | feed, carriage return, form feed). Comments are started by the number |
83 | sign ("#"). |
84 | .PP |
85 | Fields may be unquoted (in which case they may not contain spaces and |
86 | may not start with a quotation mark or apostrophe) or quoted by either |
87 | quotation marks or apostrophes. Inside quoted fields every character |
88 | stands for itself, except that a backslash can only appear as part of |
89 | one of the following escape sequences: |
90 | .TP |
91 | .B \e\e |
92 | Backslash |
93 | .TP |
94 | .B \e" |
95 | Quotation mark |
96 | .\" " |
97 | .TP |
98 | .B \e' |
99 | Apostrophe |
100 | .TP |
101 | .B \en |
102 | Line feed |
103 | .PP |
104 | No other escape sequences are allowed. |
105 | .PP |
106 | Within any line the first field is a configuration command and any |
107 | further fields are parameters. Lines with no fields are ignored. |
108 | .PP |
109 | After editing the config file use \fBdisorder reconfigure\fR to make |
110 | it re-read it. If there is anything wrong with it the daemon will |
111 | record a log message and ignore the new config file. (You should fix |
112 | it before next terminating and restarting the daemon, as it cannot |
113 | start up without a valid config file.) |
114 | .SS "Global Configuration" |
115 | .TP |
116 | .B home \fIDIRECTORY\fR |
117 | The home directory for state files. Defaults to |
118 | .IR pkgstatedir . |
119 | .TP |
120 | .B plugin \fIPATH\fR |
121 | Adds a directory to the plugin path. (This is also used by the web |
122 | interface.) |
123 | .IP |
124 | Plugins are opened the first time they are required and never after, |
125 | so after changing a plugin you must restart the server before it is |
126 | guaranteed to take effect. |
127 | .SS "Server Configuration" |
128 | .TP |
129 | .B alias \fIPATTERN\fR |
130 | Defines the pattern use construct virtual filenames from \fBtrackname_\fR |
131 | preferences. |
132 | .IP |
133 | Most characters stand for themselves, the exception being \fB{\fR which is used |
134 | to insert a track name part in the form \fB{\fIname\fB}\fR or |
135 | \fB{/\fIname\fB}\fR. |
136 | .IP |
137 | The difference is that the first form just inserts the name part while the |
138 | second prefixes it with a \fB/\fR if it is nonempty. |
139 | .IP |
140 | The pattern should not attempt to include the collection root, which is |
141 | automatically included, but should include the proper extension. |
142 | .IP |
143 | The default is \fB{/artist}{/album}{/title}{ext}\fR. |
144 | .TP |
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145 | .B broadcast \fIADDRESS\fR \fIPORT\fR |
146 | Transmit sound data to \fIADDRESS\fR using UDP port \fIPORT\fR. This implies |
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147 | \fBspeaker_backend network\fR. |
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148 | .TP |
149 | .B broadcast_from \fIADDRESS\fR \fIPORT\fR |
150 | Sets the (local) source address used by \fBbroadcast\fR. |
151 | .TP |
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152 | .B channel \fICHANNEL\fR |
153 | The mixer channel that the volume control should use. Valid names depend on |
154 | your operating system and hardware, but some standard ones that might be useful |
155 | are: |
156 | .RS |
157 | .TP 8 |
158 | .B pcm |
159 | Output level for the audio device. This is probably what you want. |
160 | .TP |
161 | .B speaker |
162 | Output level for the PC speaker, if that is connected to the sound card. |
163 | .TP |
164 | .B pcm2 |
165 | Output level for alternative codec device. |
166 | .TP |
167 | .B vol |
168 | Master output level. The OSS documentation recommends against using this, as |
169 | it affects all output devices. |
170 | .RE |
171 | .IP |
172 | You can also specify channels by number, if you know the right value. |
173 | .TP |
174 | .B collection \fIMODULE\fR \fIENCODING\fR \fIROOT\fR |
175 | Define a collection of tracks. |
176 | .IP |
177 | \fIMODULE\fR defines which plugin module should be used for this |
178 | collection. Use the supplied \fBfs\fR module for tracks that exists |
179 | as ordinary files in the filesystem. |
180 | .IP |
181 | \fIENCODING\fR defines the encoding of filenames in this collection. |
182 | For \fBfs\fR this would be the encoding you use for filenames. |
183 | Examples might be \fBiso-8859-1\fR or \fButf-8\fR. |
184 | .IP |
185 | \fIROOT\fR is the root in the filesystem of the filenames and is |
186 | passed to the plugin module. |
187 | .TP |
188 | .B device \fINAME\fR |
189 | ALSA device to play raw-format audio. Default is \fBdefault\fR, i.e. to use |
190 | the whatever the ALSA configured default is. |
191 | .TP |
192 | .B gap \fISECONDS\fR |
193 | Specifies the number of seconds to leave between tracks. The default |
194 | is 2. |
195 | .TP |
196 | .B history \fIINTEGER\fR |
197 | Specifies the number of recently played tracks to remember (including |
198 | failed tracks and scratches). |
199 | .TP |
200 | .B listen \fR[\fIHOST\fR] \fISERVICE\fR |
201 | Listen for connections on the address specified by \fIHOST\fR and port |
202 | specified by \fISERVICE\fR. If \fIHOST\fR is omitted then listens on all |
203 | local addresses. |
204 | .IP |
205 | Normally the server only listens on a UNIX domain socket. |
206 | .TP |
207 | .B lock yes\fR|\fBno |
208 | Determines whether the server locks against concurrent operation. Default is |
209 | \fByes\fR. |
210 | .TP |
211 | .B mixer \fIPATH\fR |
212 | The path to the mixer device, if you want access to the volume control, |
213 | e.g. \fB/dev/mixer\fR. |
214 | .TP |
215 | .B namepart \fIPART\fR \fIREGEXP\fR \fISUBST\fR [\fICONTEXT\fR [\fIREFLAGS\fR]] |
216 | Determines how to extract trackname part \fIPART\fR from a |
217 | track name (with the collection root part removed). |
218 | Used in \fB@recent@\fR, \fB@playing@\fR and \fB@search@\fR. |
219 | .IP |
220 | Track names can be different in different contexts. For instance the sort |
221 | string might include an initial track number, but this would be stripped for |
222 | the display string. \fICONTEXT\fR should be a glob pattern matching the |
223 | contexts in which this directive will be used. |
224 | .IP |
225 | Valid contexts are \fBsort\fR and \fBdisplay\fR. |
226 | .IP |
227 | All the \fBnamepart\fR directives are considered in order. The |
228 | first directive for the right part, that matches the desired context, |
229 | and with a \fIREGEXP\fR that |
230 | matches the track is used, and the value chosen is constructed from |
231 | \fISUBST\fR according to the substitution rules below. |
232 | .IP |
233 | Note that searches use the raw track name and \fBtrackname_\fR preferences but |
234 | not (currently) the results of \fBnamepart\fR, so generating words via this option |
235 | that aren't in the original track name will lead to confusing results. |
236 | .IP |
237 | If you supply no \fBnamepart\fR directives at all then a default set will be |
238 | supplied automatically. But if you supply even one then you must supply all of |
239 | them. See the example config file for the defaults. |
240 | .TP |
241 | .B nice_rescan \fIPRIORITY\fR |
242 | Set the recan subprocess priority. The default is 10. |
243 | .IP |
244 | (Note that higher values mean the process gets less CPU time; UNIX priority |
245 | values are the backwards.) |
246 | .TP |
247 | .B nice_server \fIPRIORITY\fR |
248 | Set the server priority. This is applied to the server at startup time (and |
249 | not when you reload configuration). The server does not use much CPU itself |
250 | but this value is inherited by programs it executes. If you have limited CPU |
251 | then it might help to set this to a small negative value. The default is 0. |
252 | .TP |
253 | .B nice_speaker \fIPRIORITY\fR |
254 | Set the speaker process priority. This is applied to the speaker process at |
255 | startup time (and not when you reload the configuration). The speaker process |
256 | is not massively CPU intensive by today's standards but depends on reasonably |
257 | timely scheduling. If you have limited CPU then it might help to set this to a |
258 | small negative value. The default is 0. |
259 | .TP |
260 | .B player \fIPATTERN\fR \fIMODULE\fR [\fIOPTIONS.. [\fB--\fR]] \fIARGS\fR... |
261 | Specifies the player for files matching the glob \fIPATTERN\fR. \fIMODULE\fR |
262 | specifies which plugin module to use. |
263 | .IP |
264 | The following options are supported: |
265 | .RS |
266 | .TP |
267 | .B --wait-for-device\fR[\fB=\fIDEVICE\fR] |
268 | Waits (for up to a couple of seconds) for the default, or specified, libao |
269 | device to become openable. |
270 | .TP |
271 | .B -- |
272 | Defines the end of the list of options. Needed if the first argument to the |
273 | plugin starts with a "-". |
274 | .RE |
275 | .IP |
276 | The following are the standard modules: |
277 | .RS |
278 | .TP |
279 | .B exec \fICOMMAND\fR \fIARGS\fR... |
280 | The command is executed via \fBexecvp\fR(3), not via the shell. |
281 | The \fBPATH\fR environment variable is searched for the executable if it is not |
282 | an absolute path. |
283 | The command is expected to know how to open its own sound device. |
284 | .TP |
285 | .B execraw \fICOMMAND\fR \fIARGS\fR... |
286 | Identical to the \fBexec\fR except that the player is expected to use the |
287 | DisOrder raw player protocol (see notes below). |
288 | .TP |
289 | .B shell \fR[\fISHELL\fR] \fICOMMAND\fR |
290 | The command is executed using the shell. If \fISHELL\fR is specified then that |
291 | is used, otherwise \fBsh\fR will be used. In either case the \fBPATH\fR |
292 | environment variable is searched for the shell executable if it is not an |
293 | absolute path. The track name is stored in the environment variable |
294 | \fBTRACK\fR. |
295 | .IP |
296 | Be careful of the interaction between the configuration file quoting rules and |
297 | the shell quoting rules. |
298 | .RE |
299 | .IP |
300 | If multiple player commands match a track then the first match is used. |
301 | .TP |
302 | .B prefsync \fISECONDS\fR |
303 | The interval at which the preferences log file will be synchronised. Defaults |
304 | to 3600, i.e. one hour. |
305 | .TP |
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306 | .B queue_pad \fICOUNT\fR |
307 | The target size of the queue. If random play is enabled then randomly picked |
308 | tracks will be added until the queue is at least this big. |
309 | .TP |
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310 | .B sample_format \fIBITS\fB/\fIRATE\fB/\fICHANNELS |
311 | Describes the sample format expected by the \fBspeaker_command\fR (below). The |
312 | components of the format specification are as follows: |
313 | .RS |
314 | .TP 10 |
315 | .I BITS |
316 | The number of bits per sample. Optionally, may be suffixed by \fBb\fR or |
317 | \fBl\fR for big-endian and little-endian words. If neither is used the native |
318 | byte order is assumed. |
319 | .TP |
320 | .I RATE |
321 | The number of samples per second. |
322 | .TP |
323 | .I CHANNELS |
324 | The number of channels. |
325 | .PP |
326 | The default is |
327 | .BR 16/44100/2 . |
328 | .RE |
329 | .TP |
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330 | .B signal \fINAME\fR |
331 | Defines the signal to be sent to track player process groups when tracks are |
332 | scratched. The default is \fBSIGKILL\fR. |
333 | .IP |
334 | Signals are specified by their full C name, i.e. \fBSIGINT\fR and not \fBINT\fR |
335 | or \fBInterrupted\fR or whatever. |
336 | .TP |
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337 | .B speaker_backend \fINAME\fR |
338 | Selects the backend use by the speaker process. The following options are |
339 | available: |
340 | .RS |
341 | .TP |
342 | .B alsa |
343 | Use the ALSA API. This is only available on Linux systems, on which it is the |
344 | default. |
345 | .TP |
346 | .B command |
347 | Execute a command. This is the default if |
348 | .B speaker_command |
349 | is specified, or (currently) on non-Linux systems. |
350 | .TP |
351 | .B network |
352 | Transmit audio over the network. This is the default if |
353 | \fBbroadcast\fR is specified. |
354 | .RE |
355 | .TP |
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356 | .B sox_generation \fB0\fR|\fB1 |
357 | Determines whether calls to \fBsox\fR(1) should use \fB-b\fR, \fB-x\fR, etc (if |
358 | the generation is 0) or \fB-\fIbits\fR, \fB-L\fR etc (if it is 1). The default |
359 | is 0. |
360 | .TP |
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361 | .B speaker_command \fICOMMAND |
362 | Causes the speaker subprocess to pipe audio data into shell command |
363 | \fICOMMAND\fR, rather than writing to a local sound card. The sample format is |
364 | determine by |
365 | .B sample_format |
366 | above. |
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367 | .IP |
368 | Note that if the sample format is wrong then |
369 | .BR sox (1) |
370 | is invoked to translate it. If |
371 | .B sox |
372 | is not installed then this will not work. |
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373 | .TP |
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374 | .B restrict \fR[\fBscratch\fR] [\fBremove\fR] [\fBmove\fR] |
375 | Determine which operations are restricted to the submitter of a |
376 | track. By default, no operations are restricted, i.e. anyone can |
377 | scratch or remove anything. |
378 | .IP |
379 | If \fBrestrict scratch\fR or \fBrestrict remove\fR are set then only the user |
380 | that submitted a track can scratch or remove it, respectively. |
381 | .IP |
382 | If \fBrestrict move\fR is set then only trusted users can move tracks around in |
383 | the queue. |
384 | .IP |
385 | If \fBrestrict\fR is used more than once then only the final use has any |
386 | effect. |
387 | .TP |
388 | .B scratch \fIPATH\fR |
389 | Specifies a scratch. When a track is scratched, a scratch track is |
390 | played at random. |
391 | Scratches are played using the same logic as other tracks. |
392 | .IP |
393 | At least for the time being, path names of scratches must be encoded using |
394 | UTF-8 (which means that ASCII will do). |
395 | .TP |
396 | .B stopword \fIWORD\fR ... |
397 | Specifies one or more stopwords that should not take part in searches |
398 | over track names. |
399 | .SS "Client Configuration" |
400 | .TP |
401 | .B connect \fR[\fIHOST\fR] \fISERVICE\fR |
402 | Connect to the address specified by \fIHOST\fR and port specified by |
403 | \fISERVICE\fR. If \fIHOST\fR is omitted then connects to the local host. |
404 | Normally the UNIX domain socket is used instead. |
405 | .SS "Web Interface Configuration" |
406 | .TP |
407 | .B refresh \fISECONDS\fR |
408 | Specifies the maximum refresh period in seconds. Default 15. |
409 | .TP |
410 | .B templates \fIPATH\fR ... |
411 | Specifies the directory containing templates used by the web |
412 | interface. If a template appears in more than one template directory |
413 | then the one in the earliest directory specified is chosen. |
414 | .IP |
415 | See below for further details. |
416 | .TP |
417 | .B transform \fITYPE\fR \fIREGEXP\fR \fISUBST\fR [\fICONTEXT\fR [\fIREFLAGS\fR]] |
418 | Determines how names are sorted and displayed in track choice displays. |
419 | .IP |
420 | \fITYPE\fR is the type of transformation; usually \fBtrack\fR or |
421 | \fBdir\fR but you can define your own. |
422 | .IP |
423 | \fICONTEXT\fR is a glob pattern matching the context. Standard contexts are |
424 | \fBsort\fR (which determines how directory names are sorted) and \fBdisplay\fR |
425 | (which determines how they are displayed). Again, you can define your |
426 | own. |
427 | .IP |
428 | All the \fBtransform\fR directives are considered in order. If |
429 | the \fITYPE\fR, \fIREGEXP\fR and the \fICONTEXT\fR match |
430 | then a new track name is constructed from |
431 | \fISUBST\fR according to the substitution rules below. If several |
432 | match then each is executed in order. |
433 | .IP |
434 | If you supply no \fBtransform\fR directives at all then a default set will be |
435 | supplied automatically. But if you supply even one then you must supply all of |
436 | them. See the example config file for the defaults. |
437 | .TP |
438 | .B url \fIURL\fR |
439 | Specifies the URL of the web interface. This URL will be used in |
440 | generated web pages. |
441 | .IP |
442 | This must be the full URL, e.g. \fBhttp://myhost/cgi-bin/jukebox\fR and not |
443 | \fB/cgi-bin/jukebox\fR. |
444 | .SS "Authentication Configuration" |
445 | .TP |
446 | .B allow \fIUSERNAME\fR \fIPASSWORD\fR |
447 | Specify a username/password pair. |
448 | .TP |
449 | .B password \fIPASSWORD\fR |
450 | Specify password. |
451 | .TP |
452 | .B trust \fIUSERNAME\fR |
453 | Allow \fIUSERNAME\fR to perform privileged operations such as shutting |
454 | down or reconfiguring the daemon, or becoming another user. |
455 | .TP |
456 | .B user \fIUSER\fR |
457 | Specifies the user to run as. Only makes sense if invoked as root (or |
458 | the target user). |
459 | .TP |
460 | .B username \fIUSERNAME\fR |
461 | Specify username. The default is taken from the environment variable |
462 | \fBLOGNAME\fR. |
463 | .PP |
464 | Configuration files are read in the following order: |
465 | .TP |
466 | .I pkgconfdir/config |
467 | .TP |
468 | .I pkgconfdir/config.private |
469 | Should be readable only by the jukebox group, and contain \fBallow\fR |
470 | commands for authorised users. |
471 | .TP |
472 | .I pkgconfdir/config.\fRUSER |
473 | Per-user system-controlled client configuration. Optional but if it |
474 | exists must be readable only by the relevant user. Would normally |
475 | contain a \fBpassword\fR directive. |
476 | .TP |
477 | .I ~\fRUSER\fI/.disorder/passwd |
478 | Per-user client configuration. Optional but if it exists must be |
479 | readable only by the relevant user. Would normally contain a |
480 | \fBpassword\fR directive. |
481 | .SH "GLOBAL PREFERENCES" |
482 | These are the values set with \fBset-global\fR. |
483 | .TP |
484 | .B required-tags |
485 | If this is set an nonempty then randomly played tracks will always have at |
486 | least one of the listed tags. |
487 | .IP |
488 | Tags can contain any printing character except comma. Leading and trailing |
489 | spaces are not significant but internal spaces are. Tags in a list are |
490 | separated by commas. |
491 | .TP |
492 | .B prohibited-tags |
493 | If this is set an nonempty then randomly played tracks will never have any of |
494 | the listed tags. |
495 | .TP |
496 | .B playing |
497 | If unset or \fByes\fR then play is enabled. Otherwise it is disabled. Use |
498 | \fBdisable\fR rather than setting it directly. |
499 | .TP |
500 | .B random-play |
501 | If unset or \fByes\fR then random play is enabled. Otherwise it is disabled. |
502 | Use \fBdisable\fR rather than setting it directly. |
503 | .SH "LIBAO DRIVER" |
504 | .SS "Raw Protocol Players" |
505 | Raw protocol players are expected to use the \fBdisorder\fR libao driver. |
506 | Programs that use libao generally have command line options to select the |
507 | driver and pass options to it. |
508 | .SS "Driver Options" |
509 | The known driver options are: |
510 | .TP |
511 | .B fd |
512 | The file descriptor to write to. If this is not specified then the driver |
513 | looks like the environment variable \fBDISORDER_RAW_FD\fR. If that is not set |
514 | then the default is 1 (i.e. standard output). |
515 | .TP |
516 | .B fragile |
517 | If this is set to a nonzero value then the driver will call \fB_exit\fR(2) if a |
518 | write to the output file descriptor fails. This is a workaround for buggy |
519 | players such as \fBogg123\fR that ignore write errors. |
520 | .SH "WEB TEMPLATES" |
521 | When \fBdisorder.cgi\fR wants to generate a page for an action it searches the |
522 | directories specified with \fBtemplates\fR for a matching file. It is |
523 | suggested that you leave the distributed templates unchanged and put |
524 | any customisations in an earlier entry in the template path. |
525 | .PP |
526 | The supplied templates are: |
527 | .TP |
528 | .B about.html |
529 | Display information about DisOrder. |
530 | .TP |
531 | .B choose.html |
532 | Navigates through the track database to choose a track to play. The |
533 | \fBdir\fR argument gives the directory to look in; if it is missing |
534 | then the root directory is used. |
535 | .TP |
536 | .B choosealpha.html |
537 | Provides a front end to \fBchoose.html\fR which allows subsets of the top level |
538 | directories to be selected by initial letter. |
539 | .TP |
540 | .B playing.html |
541 | The "front page", which usually shows the currently playing tracks and |
542 | the queue. |
543 | Gets an HTTP \fBRefresh\fR header. |
544 | .IP |
545 | If the \fBmgmt\fR CGI argument is set to \fBtrue\fR then we include extra |
546 | buttons for moving tracks up and down in the queue. There is some logic in |
547 | \fBdisorder.cgi\fR to ensure that \fBmgmt=true\fR is preserved across refreshes |
548 | and redirects back into itself, but URLs embedded in web pages must include it |
549 | explicitly. |
550 | .TP |
551 | .B prefs.html |
552 | Views preferences. If the \fBfile\fR, \fBname\fR and \fBvalue\fR arguments are |
553 | all set then that preference is modified; if \fBfile\fR and \fBname\fR are set |
554 | but not \fBvalue\fR then the preference is deleted. |
555 | .TP |
556 | .B recent.html |
557 | Lists recently played tracks. |
558 | .TP |
559 | .B search.html |
560 | Presents search results. |
561 | .TP |
562 | .B volume.html |
563 | Primitive volume control. |
564 | .PP |
565 | Additionally, other standard files are included by these: |
566 | .TP |
567 | .B credits.html |
568 | Included at the end of the main content \fB<DIV>\fR element. |
569 | .TP |
570 | .B sidebar.html |
571 | Included at the start of the \fB<BODY>\fR element. |
572 | .TP |
573 | .B stdhead.html |
574 | Included in the \fB<HEAD>\fR element. |
575 | .TP |
576 | .B stylesheet.html |
577 | Contains the default DisOrder stylesheet. You can override this by editing the |
578 | CSS or by replacing it all with a \fB<LINK>\fR to an external stylesheet. |
579 | .PP |
580 | Templates are ASCII files containing HTML documents, with an expansion |
581 | syntax to enable data supplied by the implementation to be inserted. |
582 | .PP |
583 | If you want to use characters outside the ASCII range, use either the |
584 | appropriate HTML entity, e.g. \fBé\fR, or an SGML numeric |
585 | character reference, e.g. \fBý\fR. Use \fB@\fR to insert a |
586 | literal \fB@\fR without falling foul of the expansion syntax. |
587 | .SS "Expansion Syntax" |
588 | Expansions are surrounded by at ("@") symbols take the form of a keyword |
589 | followed by zero or more arguments. Arguments may either be quoted by curly |
590 | brackets ("{" and "}") or separated by colons (":"). Both kinds may be mixed |
591 | in a single expansion, though doing so seems likely to cause confusion. |
592 | The descriptions below contain suggested forms for each |
593 | expansion. |
594 | .PP |
595 | Leading and trailing whitespace in unquoted arguments is ignored, as is |
596 | whitespace (including newlines) following a close bracket ("}"). |
597 | .PP |
598 | Arguments are recursively expanded before being interpreted, except for |
599 | \fITEMPLATE\fR arguments. These are expanded (possibly more than once) to |
600 | produce the final expansion. |
601 | (More than once means the same argument being expanded more than once |
602 | for different tracks or whatever, not the result of the first |
603 | expansion itself being re-expanded.) |
604 | .PP |
605 | Strings constructed by expansions (i.e. not literally copied from the template |
606 | text) are SGML-quoted: any character which does not stand for itself in #PCDATA |
607 | or a quoted attribute value is replaced by the appropriate numeric character |
608 | reference. |
609 | .PP |
610 | The exception to this is that such strings are \fInot\fR quoted when they are |
611 | generated in the expansion of a parameter. |
612 | .PP |
613 | In the descriptions below, the current track means the one set by |
614 | \fB@playing@\fR, \fB@recent@\fR or \fB@queue@\fR, not the one that is playing. |
615 | If none of these expansions are in force then there is no current track. |
616 | \fIBOOL\fR should always be either \fBtrue\fR or \fBfalse\fR. |
617 | .SS "Expansions" |
618 | The following expansion keywords are defined: |
619 | .TP |
620 | .B @#{\fICOMMENT\fB}@ |
621 | Ignored. |
622 | .TP |
623 | .B @action@ |
624 | The current action. This reports |
625 | .B manage |
626 | if the action is really |
627 | .B playing |
628 | but |
629 | .B mgmt=true |
630 | was set. |
631 | .TP |
632 | .B @and{\fIBOOL\fB}{\fIBOOL\fB}\fR...\fB@ |
633 | If there are no arguments, or all the arguments are \fBtrue\fB, then expands to |
634 | \fBtrue\fR, otherwise to \fBfalse\fR. |
635 | .TP |
636 | .B @arg:\fINAME\fB@ |
637 | Expands to the value of CGI script argument \fINAME\fR. |
638 | .TP |
639 | .B @basename@ |
640 | The basename of the current directory component, in \fB@navigate@\fR. |
641 | .TP |
642 | .B @basename{\fIPATH\fB}@ |
643 | The base name part of \fIPATH\fR. |
644 | .TP |
645 | .B @choose{\fIWHAT\fB}{\fITEMPLATE\fB}@ |
646 | Expands \fITEMPLATE\fR repeatedly for each file or directory under |
647 | \fB@arg:directory@\fR. |
648 | \fIWHAT\fR should be either \fBfile\fR or \fBdirectory\fR. |
649 | Use \fB@file@\fR to get the display name or filename of the file or |
650 | directory. |
651 | Usually used in \fBchoose.html\fR. |
652 | .TP |
653 | .B @dirname@ |
654 | The directory of the current directory component, in \fB@navigate@\fR. |
655 | .TP |
656 | .B @dirname{\fIPATH\fB}@ |
657 | The directory part of \fIPATH\fR. |
658 | .TP |
659 | .B @enabled@ |
660 | Expands to \fBtrue\fR if play is currently enabled, otherwise to \fBfalse\fR. |
661 | .TP |
662 | .B @eq{\fIA\fB}{\fIB\fB} |
663 | Expands to \fBtrue\fR if \fIA\fR and \fIB\fR are identical, otherwise to |
664 | \fBfalse\fR. |
665 | .TP |
666 | .B @file@ |
667 | Expands to the filename of the current file or directory, inside the template |
668 | argument to \fBchoose\fR. |
669 | .TP |
670 | .B @files{\fITEMPLATE\fB} |
671 | Expands \fITEMPLATE\fB once for each file indicated by the \fBdirectory\fR CGI |
672 | arg if it is present, or otherwise for the list of files counted by \fBfiles\fR |
673 | with names \fB0_file\fR, \fB1_file\fR etc. |
674 | .TP |
675 | .B @fullname@ |
676 | The full path of the current directory component, in \fB@navigate@\fR. |
677 | .TP |
678 | .B @id@ |
679 | The ID of the current track. |
680 | .TP |
681 | .B @if{\fIBOOL\fB}{\fITRUEPART\fB}{\fIFALSEPART\fB}@ |
682 | If \fIBOOL\fR expands to \fBtrue\fR then expands to \fITRUEPART\fR, otherwise |
683 | to \fIFALSEPART\fR (which may be omitted). |
684 | .TP |
685 | .B @include:\fIPATH\fR@ |
686 | Include the named file as if it were a template file. If \fIPATH\fR |
687 | starts with a \fB/\fR then it is used as-is; otherwise, ".html" is |
688 | appended and the template path is searched. |
689 | .TP |
690 | .B @index@ |
691 | Expands to the index of the current file in \fB@queue@\fR, \fB@recent@\fR or |
692 | \fB@files@\fR. |
693 | .TP |
694 | .B @isdirectories@ |
695 | Expands to \fBtrue\fR if there are any directories in \fB@arg:directory@\fR, |
696 | otherwise to \fBfalse\fR. |
697 | .TP |
698 | .B @isfiles@ |
699 | Expands to \fBtrue\fR if there are any files in \fB@arg:directory@\fR, |
700 | otherwise to \fBfalse\fR. |
701 | .TP |
702 | .B @isfirst@ |
703 | Expands to \fBtrue\fR if this is the first repetition of a \fITEMPLATE\fR |
704 | argument in a loop (\fB@queue\fR or similar), otherwise to \fBfalse\fR. |
705 | .TP |
706 | .B @islast@ |
707 | Expands to \fBtrue\fR if this is the last repetition of a \fITEMPLATE\fR in a |
708 | loop, otherwise to \fBfalse\fR. |
709 | .TP |
710 | .B @isplaying@ |
711 | Expands to \fBtrue\fR if a track is playing, otherwise to \fBfalse\fR. |
712 | .TP |
713 | .B @isqueue@ |
714 | Expands to \fBtrue\fR if there are any tracks in the queue, otherwise to |
715 | \fBfalse\fR. |
716 | .TP |
717 | .B @isrecent@ |
718 | Expands to \fBtrue\fR if the recently played list has any tracks in it, |
719 | otherwise to \fBfalse\fR. |
720 | .TP |
721 | .B @label:\fINAME\fR\fB@ |
722 | Expands to the value of label \fINAME\fR. See the shipped \fIoptions.labels\fR |
723 | file for full documentation of the labels used by the standard templates. |
724 | .TP |
725 | .B @length@ |
726 | Expands to the length of the current track. |
727 | .TP |
728 | .B @navigate{\fIDIRECTORY\fB}{\fITEMPLATE\fB} |
729 | Expands \fITEMPLATE\fR for each component of \fIDIRECTORY\fR in turn. |
730 | Use \fB@dirname\fR and \fB@basename@\fR to get the components of the path to |
731 | each component. |
732 | Usually used in \fBchoose.html\fR. |
733 | .TP |
734 | .B @ne{\fIA\fB}{\fIB\fB} |
735 | Expands to \fBtrue\fR if \fIA\fR and \fIB\fR differ, otherwise to \fBfalse\fR. |
736 | .TP |
737 | .B @nfiles@ |
738 | Expands to the number of files from \fB@files\fR (above). |
739 | .TP |
740 | .B @nonce@ |
741 | Expands to a string including the time and process ID, intended to be |
742 | unique across invocations. |
743 | .TP |
744 | .B @not{\fIBOOL\fB}@ |
745 | Expands to \fBfalse\fR if \fIBOOL\fR is \fBtrue\fR, otherwise to |
746 | \fBfalse\fR. |
747 | .TP |
748 | .B @or{\fIBOOL\fB}{\fIBOOL\fB}\fR...\fB@ |
749 | If at least one argument is \fBtrue\fB, then expands to \fBtrue\fR, otherwise |
750 | to \fBfalse\fR. |
751 | .TP |
752 | .B @parity@ |
753 | Expands to \fBeven\fR or \fBodd\fR depending on whether the current track is at |
754 | an even or odd position in \fB@queue@\fR, \fB@recent@\fR or \fB@files@\fR. |
755 | .TP |
756 | .B @part{\fICONTEXT\fB}{\fIPART\fB}@ |
757 | Expands to track name part \fIPART\fR using context \fICONTEXT\fR for the |
758 | current track. The context may be omitted (and normally would be) and defaults |
759 | to \fBdisplay\fR. |
760 | .TP |
761 | .B @part{\fICONTEXT\fB}{\fIPART\fB}{\fITRACK\fB}@ |
762 | Expands to track name part \fIPART\fR using context \fICONTEXT\fR for |
763 | \fITRACK\fR. In this usage the context may not be omitted. |
764 | .TP |
765 | .B @paused@ |
766 | Expands to \fBtrue\fR if the current track is paused, else \fBfalse\fR. |
767 | .TP |
768 | .B @playing{\fITEMPLATE\fB}@ |
769 | Expands \fITEMPLATE\fR using the playing track as the current track. |
770 | .TP |
771 | .B @pref{\fITRACK\fB}{\fIKEY\fB}@ |
772 | Expand to the track preference, or the empty string if it is not set. |
773 | .TP |
774 | .B @prefname@ |
775 | Expands to the name of the current preference, in the template |
776 | argument of \fB@prefs@\fR. |
777 | .TP |
778 | .B @prefs{\fIFILE\fB}{\fITEMPLATE\fB}@ |
779 | Expands \fITEMPLATE\fR repeatedly, for each preference of track |
780 | \fIFILE\fR. |
781 | Use \fB@prefname@\fR and \fB@prefvalue@\fR to get the name and value. |
782 | .TP |
783 | .B @prefvalue@ |
784 | Expands to the value of the current preference, in the template |
785 | argument of \fB@prefs@\fR. |
786 | .TP |
787 | .B @queue{\fITEMPLATE\fB}@ |
788 | Expands \fITEMPLATE\fR repeatedly using the each track on the queue in turn as |
789 | the current track. The track at the head of the queue comes first. |
790 | .TP |
791 | .B @random-enabled@ |
792 | Expands to \fBtrue\fR if random play is currently enabled, otherwise to |
793 | \fBfalse\fR. |
794 | .TP |
795 | .B @recent{\fITEMPLATE\fB}@ |
796 | Expands \fITEMPLATE\fR repeatedly using the each recently played track in turn |
797 | as the current track. The most recently played track comes first. |
798 | .TP |
799 | .B @resolve{\fITRACK\fB}@ |
800 | Resolve aliases for \fITRACK\fR and expands to the result. |
801 | .TP |
802 | .B @search{\fIPART\fB}\fR[\fB{\fICONTEXT\fB}\fR]\fB{\fITEMPLATE\fB}@ |
803 | Expands \fITEMPLATE\fR once for each group of search results that have |
804 | a common value of track part \fIPART\fR. |
805 | The groups are sorted by the value of the part. |
806 | .IP |
807 | .B @part@ |
808 | and |
809 | .B @file@ |
810 | within the template will apply to one of the tracks in the group. |
811 | .IP |
812 | If \fICONTEXT\fR is specified it should be either \fBsort\fR or \fBdisplay\fR, |
813 | and determines the context for \fIPART\fR. The default is \fBsort\fR. Usually |
814 | you want \fBdisplay\fR for everything except the title and \fBsort\fR for the |
815 | title. If you use \fBsort\fR for artist and album then you are likely to get |
816 | strange effects. |
817 | .TP |
818 | .B @server-version@ |
819 | Expands to the server's version string. |
820 | .TP |
821 | .B @shell{\fICOMMAND\fB}@ |
822 | Expands to the output of \fICOMMAND\fR executed via the shell. \fBsh\fR is |
823 | searched for using \fBPATH\fR. If the command fails then this is logged but |
824 | otherwise ignored. |
825 | .TP |
826 | .B @state@ |
827 | In \fB@queue@\fR and \fB@recent@\fR, expands to the state of the current |
828 | track. Otherwise the empty string. Known states are: |
829 | .RS |
830 | .TP 12 |
831 | .B failed |
832 | The player terminated with nonzero status, but not because the track was |
833 | scratched. |
834 | .TP |
835 | .B isscratch |
836 | A scratch, in the queue. |
837 | .TP |
838 | .B no_player |
839 | No player could be found. |
840 | .TP |
841 | .B ok |
842 | Played successfully. |
843 | .TP |
844 | .B random |
845 | A randomly chosen track, in the queue. |
846 | .TP |
847 | .B scratched |
848 | This track was scratched. |
849 | .TP |
850 | .B unplayed |
851 | An explicitly queued track, in the queue. |
852 | .RE |
853 | .IP |
854 | Some additional states only apply to playing tracks, so will never be seen in |
855 | the queue or recently-played list: |
856 | .RS |
857 | .TP 12 |
858 | .B paused |
859 | The track has been paused. |
860 | .TP |
861 | .B quitting |
862 | Interrupted because the server is shutting down. |
863 | .TP |
864 | .B started |
865 | This track is currently playing. |
866 | .RE |
867 | .TP |
868 | .B @stats@ |
869 | Expands to the server statistics. |
870 | .TP |
871 | .B @thisurl@ |
872 | Expands to the URL of the current page. Typically used in |
873 | .B back |
874 | arguments. If there is a |
875 | .B nonce |
876 | argument then it is changed to a fresh value. |
877 | .TP |
878 | .B @track@ |
879 | The current track. |
880 | .TP |
881 | .B @trackstate{\fIPATH\fB}@ |
882 | Expands to the current track state: \fBplaying\fR if the track is actually |
883 | playing now, \fBqueued\fR if it is queued or the empty string otherwise. |
884 | .TP |
885 | .B @transform{\fIPATH\fB}{\fITYPE\fB}{\fICONTEXT\fB}@ |
886 | Transform a path according to \fBtransform\fR (see above). |
887 | \fIPATH\fR should be a raw filename (of a track or directory). |
888 | \fITYPE\fR should be the transform type (e.g. \fItrack\fR or \fIdir\fR). |
889 | \fICONTEXT\fR should be the context, and can be omitted (the default |
890 | is \fBdisplay\fR). |
891 | .TP |
892 | .B @url@ |
893 | Expands to the canonical URL as defined in \fIpkgconfdir/config\fR. |
894 | .TP |
895 | .B @urlquote{\fISTRING\fB}@ |
896 | URL-quote \fISTRING\fR. |
897 | .TP |
898 | .B @version@ |
899 | Expands to \fBdisorder.cgi\fR's version string. |
900 | .TP |
901 | .B @volume:\fISPEAKER\fB@ |
902 | The volume on the left or right speaker. \fISPEAKER\fR must be \fBleft\fB or |
903 | \fBright\fR. |
904 | .TP |
905 | .B @when@ |
906 | When the current track was played (or when it is expected to be played, if it |
907 | has not been played yet) |
908 | .TP |
909 | .B @who@ |
910 | Who submitted the current track. |
911 | .SH "WEB OPTIONS" |
912 | This is a file called \fIoptions\fR, searched for in the same manner |
913 | as templates. It includes numerous options for the control of the web |
914 | interface. The general syntax is the same as the main configuration |
915 | file, except that it should be encoded using UTF-8 (though this might |
916 | change to the current locale's character encoding; stick to ASCII to |
917 | be safe). |
918 | .PP |
919 | The shipped \fIoptions\fR file includes four standard options files. |
920 | In order, they are: |
921 | .TP |
922 | .I options.labels |
923 | The default labels file. You wouldn't normally edit this directly - instead |
924 | supply your own commands in \fIoptions.user\fR. Have a look at the shipped |
925 | version of the file for documentation of labels used by the standard templates. |
926 | .TP |
927 | .I options.user |
928 | A user options file. Here you should put any overrides for the default |
929 | labels and any extra labels required by your modified templates. |
930 | .PP |
931 | Valid directives are: |
932 | .TP |
933 | .B columns \fINAME\fR \fIHEADING\fR... |
934 | Defines the columns used in \fB@playing@\fR and \fB@recent@\fB. \fINAME\fR |
935 | must be either \fBplaying\fR, \fBrecent\fR or \fBsearch\fR. |
936 | \fIHEADING\fR... is a list of |
937 | heading names. If a column is defined more than once then the last definitions |
938 | is used. |
939 | .IP |
940 | The heading names \fBbutton\fR, \fBlength\fR, \fBwhen\fR and \fBwho\fR |
941 | are built in. |
942 | .TP |
943 | .B include \fIPATH\fR |
944 | Includes another file. If \fIPATH\fR starts with a \fB/\fR then it is |
945 | taken as is, otherwise it is searched for in the template path. |
946 | .TP |
947 | .B label \fINAME\fR \fIVALUE\fR |
948 | Define a label. If a label is defined more than once then the last definition |
949 | is used. |
950 | .SS Labels |
951 | Some labels are defined inside \fBdisorder.cgi\fR and others by the |
952 | default templates. You can define your own labels and use them inside |
953 | a template. |
954 | .PP |
955 | When an undefined label is expanded, if it has a dot in its name then |
956 | the part after the final dot is used as its value. Otherwise the |
957 | whole name is used as the value. |
958 | .PP |
959 | Labels are no longer documented here, see the shipped \fIoptions.labels\fR file |
960 | instead. |
961 | .SH "REGEXP SUBSTITUTION RULES" |
962 | Regexps are PCRE regexps, as defined in \fBpcrepattern\fR(3). The |
963 | only option used is \fBPCRE_UTF8\fR. Remember that the configuration |
964 | file syntax means you have to escape backslashes and quotes inside |
965 | quoted strings. |
966 | .PP |
967 | In a \fISUBST\fR string the following sequences are interpreted |
968 | specially: |
969 | .TP |
970 | .B $1 \fR... \fB$9 |
971 | These expand to the first to ninth bracketed subexpression. |
972 | .TP |
973 | .B $& |
974 | This expands to the matched part of the subject string. |
975 | .TP |
976 | .B $$ |
977 | This expands to a single \fB$\fR symbol. |
978 | .PP |
979 | All other pairs starting with \fB$\fR are undefined (and might be used |
980 | for something else in the future, so don't rely on the current |
981 | behaviour.) |
982 | .PP |
983 | If \fBi\fR is present in \fIREFLAGS\fR then the match is case-independent. If |
984 | \fBg\fR is present then all matches are replaced, otherwise only the first |
985 | match is replaced. |
986 | .SH "ACTIONS" |
987 | What the web interface actually does is terminated by the \fBaction\fR CGI |
988 | argument. The values listed below are supported. |
989 | .PP |
990 | Except as specified, all actions redirect back to the \fBplaying.html\fR |
991 | template unless the \fBback\fR argument is present, in which case the URL it |
992 | gives is used instead. |
993 | .PP |
994 | Redirection to \fBplaying.html\fR preserves \fBmgmt=true\fR if it is present. |
995 | .TP 8 |
996 | .B "move" |
997 | Move track \fBid\fR by offset \fBdelta\fR. |
998 | .TP |
999 | .B "play" |
1000 | Play track \fBfile\fR, or if that is missing then play all the tracks in |
1001 | \fBdirectory\fR. |
1002 | .TP |
1003 | .B "playing" |
1004 | Don't change any state, but instead compute a suitable refresh time and include |
1005 | that in an HTTP header. Expands the \fBplaying.html\fR template rather than |
1006 | redirecting. |
1007 | .IP |
1008 | This is the default if \fBaction\fR is missing. |
1009 | .TP |
1010 | .B "random-disable" |
1011 | Disables random play. |
1012 | .TP |
1013 | .B "random-enable" |
1014 | Enables random play. |
1015 | .TP |
1016 | .B "disable" |
1017 | Disables play completely. |
1018 | .TP |
1019 | .B "enable" |
1020 | Enables play. |
1021 | .TP |
1022 | .B "pause" |
1023 | Pauses the current track. |
1024 | .TP |
1025 | .B "remove" |
1026 | Remove track \fBid\fR. |
1027 | .TP |
1028 | .B "resume" |
1029 | Resumes play after a pause. |
1030 | .TP |
1031 | .B "scratch" |
1032 | Scratch the playing track. If \fBid\fR is present it must match the playing |
1033 | track. |
1034 | .TP |
1035 | .B "volume" |
1036 | Change the volume by \fBdelta\fR, or if that is missing then set it to the |
1037 | values of \fBleft\fR and \fBright\fR. Expands to the \fBvolume.html\fR template |
1038 | rather than redirecting. |
1039 | .TP |
1040 | .B "prefs" |
1041 | Adjust preferences from the \fBprefs.html\fR template (which it then expands |
1042 | rather than redirecting). |
1043 | .IP |
1044 | If |
1045 | .B parts |
1046 | is set then the cooked interface is assumed. The value of |
1047 | .B parts |
1048 | is used to determine which trackname preferences are set. By default the |
1049 | .B display |
1050 | context is adjusted but this can be overridden with the |
1051 | .B context |
1052 | argument. Also the |
1053 | .B random |
1054 | argument is checked; if it is set then random play is enabled for that track, |
1055 | otherwise it is disabled. |
1056 | .IP |
1057 | Otherwise if the |
1058 | .B name |
1059 | and |
1060 | .B value |
1061 | arguments are set then they are used to set a single preference. |
1062 | .IP |
1063 | Otherwise if just the |
1064 | .B name |
1065 | argument is set then that preference is deleted. |
1066 | .IP |
1067 | It is recommended that links to the \fBprefs\fR action use \fB@resolve@\fR to |
1068 | enure that the real track name is always used. Otherwise if the preferences |
1069 | page is used to adjust a trackname_ preference, the alias may change, leading |
1070 | to the URL going stale. |
1071 | .TP |
1072 | .B "error" |
1073 | This action is generated automatically when an error occurs connecting to the |
1074 | server. The \fBerror\fR label is set to an indication of what the error is. |
1075 | .SH "TRACK NAME PARTS" |
1076 | The traditional track name parts are \fBartist\fR, \fBalbum\fR and \fBtitle\fR, |
1077 | with the obvious intended meaning. These are controlled by configuration and |
1078 | by \fBtrackname_\fR preferences. |
1079 | .PP |
1080 | In addition there are two built-in parts, \fBpath\fR which is the whole path |
1081 | name and \fBext\fR which is the filename extension, including the initial dot |
1082 | (or the empty string if there is not extension). |
1083 | .SH "SEE ALSO" |
77cfc7a2 |
1084 | \fBdisorder\fR(1), \fBsox\fR(1), \fBdisorderd\fR(8), \fBdisorder-dump\fR(8), |
460b9539 |
1085 | \fBpcrepattern\fR(3) |
1086 | .\" Local Variables: |
1087 | .\" mode:nroff |
1088 | .\" fill-column:79 |
1089 | .\" End: |