CL.py: adapted to newest version of CL library.

cdplayer.py: It is now also possible to give the CD's TOC as argument
to init().  The TOC is a string consisting of 2 digits giving the
number of tracks and then for each track the length of the track as
number of minutes and number of seconds (2 digits each).

cddb.py: Interface to the .cddb directory.  Usage is the same as for
cdplayer.py.

Lib/plat-irix5/cddb.py

@@ -0,0 +1,104 @@
+# This file implements a class which forms an interface to the .cddb
+# directory that is maintained by SGI's cdman program.
+#
+# Usage is as follows:
+#
+# import readcd
+# r = readcd.Readcd().init()
+# c = Cddb().init(r.gettrackinfo())
+#
+# Now you can use c.artist, c.title and c.track[trackno] (where trackno
+# starts at 1).  When the CD is not recognized, all values will be the empty
+# string.
+# It is also possible to set the above mentioned variables to new values.
+# You can then use c.write() to write out the changed values to the
+# .cdplayerrc file.
+
+import string
+
+_cddbrc = '.cddb/'
+_DB_ID_NTRACKS = 5
+_dbid_map = '0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ@_=+abcdefghijklmnopqrstuvwxyz'
+def _dbid(v):
+	if v >= len(_dbid_map):
+		return string.zfill(v, 2)
+	else:
+		return _dbid_map[v]
+
+class Cddb():
+	def init(self, tracklist):
+		self.artist = ''
+		self.title = ''
+		if type(tracklist) == type(''):
+			t = []
+			for i in range(2, len(tracklist), 4):
+				t.append((None, \
+					  (string.atoi(tracklist[i:i+2]), \
+					   string.atoi(tracklist[i+2:i+4]))))
+			tracklist = t
+		ntracks = len(tracklist)
+		self.track = [None] + [''] * ntracks
+		self.id = _dbid((ntracks >> 4) & 0xF) + _dbid(ntracks & 0xF)
+		if ntracks <= _DB_ID_NTRACKS:
+			nidtracks = ntracks
+		else:
+			nidtracks = _DB_ID_NTRACKS - 1
+			min = 0
+			sec = 0
+			for track in tracklist:
+				start, length = track
+				min = min + length[0]
+				sec = sec + length[1]
+			min = min + sec / 60
+			sec = sec % 60
+			self.id = self.id + _dbid(min) + _dbid(sec)
+		for i in range(nidtracks):
+			start, length = tracklist[i]
+			self.id = self.id + _dbid(length[0]) + _dbid(length[1])
+		self.toc = string.zfill(ntracks, 2)
+		for track in tracklist:
+			start, length = track
+			self.toc = self.toc + string.zfill(length[0], 2) + \
+				  string.zfill(length[1], 2)
+		try:
+			import posix
+			file = posix.environ['HOME'] + '/' + _cddbrc + self.id + '.rdb'
+			f = open(file, 'r')
+		except IOError:
+			return self
+		import regex
+		reg = regex.compile('^\\([^.]*\\)\\.\\([^:]*\\):\t\\(.*\\)')
+		while 1:
+			line = f.readline()
+			if not line:
+				break
+			if reg.match(line) == -1:
+				print 'syntax error in ' + file
+				continue
+			name1 = line[reg.regs[1][0]:reg.regs[1][1]]
+			name2 = line[reg.regs[2][0]:reg.regs[2][1]]
+			value = line[reg.regs[3][0]:reg.regs[3][1]]
+			if name1 == 'album':
+				if name2 == 'artist':
+					self.artist = value
+				elif name2 == 'title':
+					self.title = value
+				elif name2 == 'toc':
+					if self.toc != value:
+						print 'toc\'s don\'t match'
+			elif name1[:5] == 'track':
+				trackno = string.atoi(name1[5:])
+				self.track[trackno] = value
+		f.close()
+		return self
+
+	def write(self):
+		import posix
+		file = posix.environ['HOME'] + '/' + _cddbrc + self.id + '.rdb'
+		f = open(file, 'w')
+		f.write('album.title:\t' + self.title + '\n')
+		f.write('album.artist:\t' + self.artist + '\n')
+		f.write('album.toc:\t' + self.toc + '\n')
+		for i in range(1, len(self.track)):
+			f.write('track' + `i` + '.title:\t' + self.track[i] + '\n')
+		f.close()