7 def __todom__(self, doc):
8 return doc.createTextNode(self)
11 def __todom__(self, doc):
12 raise Exception("Cannot convert raw code to DOM objects")
15 def __init__(self, ns, name, ctx):
22 def __call__(self, *children, **attrs):
23 for child in children:
24 self.ctx.addchild(self, child)
25 for k, v in attrs.items():
26 self.ctx.addattr(self, k, v)
29 def __todom__(self, doc):
30 el = doc.createElementNS(self.ns, self.name)
31 for k, v in self.attrs.items():
33 for child in self.children:
34 el.appendChild(child.__todom__(doc))
38 doc = xml.dom.minidom.Document()
39 return self.__todom__(doc).toxml()
41 class context(object):
44 self.nodeconv[bytes] = lambda ob: text(ob, "utf-8")
45 self.nodeconv[str] = text
46 self.nodeconv[int] = text
47 self.nodeconv[float] = text
49 def nodefrom(self, ob):
50 if isinstance(ob, node):
52 if hasattr(ob, "__tonode__"):
53 return ob.__tonode__()
54 if type(ob) in self.nodeconv:
55 return self.nodeconv[type(ob)](ob)
56 raise Exception("No node conversion known for %s objects" % str(type(ob)))
58 def addchild(self, node, child):
59 node.children.append(self.nodefrom(child))
61 def addattr(self, node, k, v):
62 node.attrs[str(k)] = str(v)
64 class constructor(object):
65 def __init__(self, ns, elcls = element, ctx=None):
68 if ctx is None: ctx = context()
71 def __getattr__(self, name):
72 return self._elcls(self._ns, name, self._ctx)