Irix 6 specific files -- thanks Sjoerd!

1 files changed, 208 insertions, 0 deletions

diff --git a/Lib/plat-irix6/cddb.py b/Lib/plat-irix6/cddb.py
new file mode 100644
index 0000000..57cf3c6
--- /dev/null
+++ b/Lib/plat-irix6/cddb.py
@@ -0,0 +1,208 @@
+# 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()
+# c = Cddb(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, posix, os
+
+_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]
+
+def tochash(toc):
+	if type(toc) == type(''):
+		tracklist = []
+		for i in range(2, len(toc), 4):
+			tracklist.append((None,
+				  (string.atoi(toc[i:i+2]),
+				   string.atoi(toc[i+2:i+4]))))
+	else:
+		tracklist = toc
+	ntracks = len(tracklist)
+	hash = _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
+		hash = hash + _dbid(min) + _dbid(sec)
+	for i in range(nidtracks):
+		start, length = tracklist[i]
+		hash = hash + _dbid(length[0]) + _dbid(length[1])
+	return hash
+	
+class Cddb:
+	def __init__(self, tracklist):
+		if os.environ.has_key('CDDB_PATH'):
+			path = os.environ['CDDB_PATH']
+			cddb_path = string.splitfields(path, ',')
+		else:
+			home = os.environ['HOME']
+			cddb_path = [home + '/' + _cddbrc]
+
+		self._get_id(tracklist)
+
+		for dir in cddb_path:
+			file = dir + '/' + self.id + '.rdb'
+			try:
+				f = open(file, 'r')
+				self.file = file
+				break
+			except IOError:
+				pass
+		ntracks = string.atoi(self.id[:2], 16)
+		self.artist = ''
+		self.title = ''
+		self.track = [None] + [''] * ntracks
+		self.trackartist = [None] + [''] * ntracks
+		self.notes = []
+		if not hasattr(self, 'file'):
+			return
+		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 not self.toc:
+						self.toc = value
+					if self.toc != value:
+						print 'toc\'s don\'t match'
+				elif name2 == 'notes':
+					self.notes.append(value)
+			elif name1[:5] == 'track':
+				try:
+					trackno = string.atoi(name1[5:])
+				except strings.atoi_error:
+					print 'syntax error in ' + file
+					continue
+				if trackno > ntracks:
+					print 'track number ' + `trackno` + \
+						  ' in file ' + file + \
+						  ' out of range'
+					continue
+				if name2 == 'title':
+					self.track[trackno] = value
+				elif name2 == 'artist':
+					self.trackartist[trackno] = value
+		f.close()
+		for i in range(2, len(self.track)):
+			track = self.track[i]
+			# if track title starts with `,', use initial part
+			# of previous track's title
+			if track and track[0] == ',':
+				try:
+					off = string.index(self.track[i - 1],
+							   ',')
+				except string.index_error:
+					pass
+				else:
+					self.track[i] = self.track[i-1][:off] \
+							+ track
+
+	def _get_id(self, tracklist):
+		# fill in self.id and self.toc.
+		# if the argument is a string ending in .rdb, the part
+		# upto the suffix is taken as the id.
+		if type(tracklist) == type(''):
+			if tracklist[-4:] == '.rdb':
+				self.id = tracklist[:-4]
+				self.toc = ''
+				return
+			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.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)
+
+	def write(self):
+		import posixpath
+		if os.environ.has_key('CDDB_WRITE_DIR'):
+			dir = os.environ['CDDB_WRITE_DIR']
+		else:
+			dir = os.environ['HOME'] + '/' + _cddbrc
+		file = dir + '/' + self.id + '.rdb'
+		if posixpath.exists(file):
+			# make backup copy
+			posix.rename(file, file + '~')
+		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 note in self.notes:
+			f.write('album.notes:\t' + note + '\n')
+		prevpref = None
+		for i in range(1, len(self.track)):
+			if self.trackartist[i]:
+				f.write('track'+`i`+'.artist:\t'+self.trackartist[i]+'\n')
+			track = self.track[i]
+			try:
+				off = string.index(track, ',')
+			except string.index_error:
+				prevpref = None
+			else:
+				if prevpref and track[:off] == prevpref:
+					track = track[off:]
+				else:
+					prevpref = track[:off]
+			f.write('track' + `i` + '.title:\t' + track + '\n')
+		f.close()