def parse_nets(self, nets):
""" Extract nets. """
for net in nets:
net_id = net.get('net_id')
ret_net = Net(net_id)
# Add Annotations
for annotation in net.get('annotations'):
anno = self.parse_annotation(annotation)
ret_net.add_annotation(anno)
# Get the Attributes
for key, value in net.get('attributes').items():
ret_net.add_attribute(key, value)
# Get the Points
for net_point in net.get('points'):
npnt = self.parse_net_point(net_point)
ret_net.add_point(npnt)
self.design.add_net(ret_net)
def parse_net(self, args):
""" Assembles a net from a list of junctions, segments, and labels. """
thisnet = Net(args)
subdata = defaultdict(list)
for phrase in self.stream:
print phrase
cmd, _sep, args = phrase.partition(' ')
if cmd not in ('J', 'S', 'A', 'L', 'Q', 'B'):
self.stream.push(phrase)
break
print args
k, v = self.parsenode(cmd)(args)
subdata[k].append(v)
# finish building thisnet
for netpt in subdata['netpoint'][:]:
# using a copy so that we can modify subdata['netpoint'] inside loop
if netpt.point_id not in thisnet.points:
thisnet.add_point(netpt)
else:
# oh yeah, a net can have a point more than once, because that
# makes *great* sense.
for point in netpt.connected_points:
thisnet.points[netpt.point_id].add_connected_point(point)
for comp in netpt.connected_components:
thisnet.points[netpt.point_id].add_connected_component(comp)
# update subdata['netpoint'] so that ref to netpt points to the
# new combined point
i = subdata['netpoint'].index(netpt)
subdata['netpoint'][i] = thisnet.points[netpt.point_id]
# yuck, passing in-band
thisnet.ibpts = subdata['netpoint']
for pt_a, pt_b in subdata['segment']:
thisnet.connect((subdata['netpoint'][pt_a - 1],
subdata['netpoint'][pt_b - 1]))
for annot in subdata['annot']:
thisnet.add_annotation(annot)
if '=' in annot.value:
thisnet.add_attribute(*(annot.value.split('=', 1)))
return ('net', thisnet)