def __init__(self, fn):
f = binfile.reader(fn)
f.byteorder = ">"
self.f = f
self.major, self.minor = f.stream("bb")
print " version %d.%d" % (self.major, self.minor)
if self.major != TAG_MAJOR_VERSION or self.minor > TAG_MINOR_VERSION:
print " WARNING: Cannot handle this version!"
self.tags = dict(self._gen_tags())
def __init__(self, fn):
f = binfile.reader(fn)
f.byteorder = '>'
self.f = f
self.major, self.minor = f.stream('bb')
print ' version %d.%d' % (self.major, self.minor)
if (self.major != TAG_MAJOR_VERSION or
self.minor > TAG_MINOR_VERSION):
print " WARNING: Cannot handle this version!"
self.tags = dict( self._gen_tags() )
def _gen_tags(self):
while True:
try:
tag_id, size = self.f.stream('HI')
except struct.error:
return
data = self.f.file.read(size)
tag_name = TAGS_NAMES[tag_id]
try: constructor = TAG_TO_CLASS[tag_name]
except KeyError:
print " Skipping %s" % tag_name
else:
print " Parsing %s" % tag_name
sub_reader = binfile.reader(StringIO.StringIO(data))
sub_reader.byteorder = '>'
data = constructor(sub_reader, self.minor)
yield (tag_id, data)
def _gen_tags(self):
while True:
try:
tag_id, size = self.f.stream("HI")
except struct.error:
return
data = self.f.file.read(size)
tag_name = TAGS_NAMES[tag_id]
try:
constructor = TAG_TO_CLASS[tag_name]
except KeyError:
print " Skipping %s" % tag_name
else:
print " Parsing %s" % tag_name
sub_reader = binfile.reader(StringIO.StringIO(data))
sub_reader.byteorder = ">"
data = constructor(sub_reader, self.minor)
yield (tag_id, data)