ref: b0d226705cec8f36339adce5d95b4feda1deba02
dir: /sys/lib/python/plat-irix5/cdplayer.py/
# This file implements a class which forms an interface to the .cdplayerrc # file that is maintained by SGI's cdplayer program. # # Usage is as follows: # # import readcd # r = readcd.Readcd() # c = Cdplayer(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. cdplayerrc = '.cdplayerrc' class Cdplayer: def __init__(self, tracklist): import string 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 self.track = [None] + [''] * len(tracklist) self.id = 'd' + string.zfill(len(tracklist), 2) for track in tracklist: start, length = track self.id = self.id + string.zfill(length[0], 2) + \ string.zfill(length[1], 2) try: import posix f = open(posix.environ['HOME'] + '/' + cdplayerrc, 'r') except IOError: return import re reg = re.compile(r'^([^:]*):\t(.*)') s = self.id + '.' l = len(s) while 1: line = f.readline() if line == '': break if line[:l] == s: line = line[l:] match = reg.match(line) if not match: print 'syntax error in ~/' + cdplayerrc continue name, value = match.group(1, 2) if name == 'title': self.title = value elif name == 'artist': self.artist = value elif name[:5] == 'track': trackno = string.atoi(name[6:]) self.track[trackno] = value f.close() def write(self): import posix filename = posix.environ['HOME'] + '/' + cdplayerrc try: old = open(filename, 'r') except IOError: old = open('/dev/null', 'r') new = open(filename + '.new', 'w') s = self.id + '.' l = len(s) while 1: line = old.readline() if line == '': break if line[:l] != s: new.write(line) new.write(self.id + '.title:\t' + self.title + '\n') new.write(self.id + '.artist:\t' + self.artist + '\n') for i in range(1, len(self.track)): new.write('%s.track.%r:\t%s\n' % (self.id, i, self.track[i])) old.close() new.close() posix.rename(filename + '.new', filename)