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-rwxr-xr-xLib/irix5/cddb.py104
1 files changed, 104 insertions, 0 deletions
diff --git a/Lib/irix5/cddb.py b/Lib/irix5/cddb.py
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+# 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()