def Start(self, nt, *kids):
'''
The production action for all productions in the grammar. The AST
which is built is actually the same as the Parse Tree. Therefore,
it is easy to have a generic action for all of the grammar rules.
'''
n = Node(nt.sym)
for kid in kids:
if isinstance(kid, Node): n.addkid(kid)
elif kid is None: continue
else: n.addkid(Node(kid.type).addkid(Node(kid.value)))
return n
def __create(self, t):
#print type(t), help(t)
doc = self.__getattribute__(traceback.extract_stack()[-2][2]).__doc__
name = doc.split(':', 1)[0].strip()
node = Node(name)
for i, x in enumerate(t[1:]):
if isinstance(x, Node):
node.addkid(x)
else:
node.addkid(t.get(i+1).type)
return node
