# 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.

from warnings import warnpy3k

warnpy3k("the cdplayer module has been removed in Python 3.0", stacklevel=2)

del warnpy3k

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)