X-Git-Url: http://dolda2000.com/gitweb/?a=blobdiff_plain;f=wrw%2Fsp%2Fcons.py;h=8ffa397579f228c15228e4dae4e64439af602878;hb=8f69f74e2a2a1b4531b6cef1bb5c203ca75d88d7;hp=99656a3b14ea5170a358dfcb0dee142980f3c1d7;hpb=6d2e09cf5bf8ddfa126ca16d536f6b42e502f0ce;p=wrw.git

diff --git a/wrw/sp/cons.py b/wrw/sp/cons.py
index 99656a3..8ffa397 100644
--- a/wrw/sp/cons.py
+++ b/wrw/sp/cons.py
@@ -1,4 +1,4 @@
-import sys
+import sys, collections.abc
 import xml.dom.minidom
 
 class node(object):
@@ -56,10 +56,19 @@ class context(object):
             return ob.__tonode__()
         if type(ob) in self.nodeconv:
             return self.nodeconv[type(ob)](ob)
-        raise Exception("No node conversion known for %s objects" % str(type(ob)))
+        return None
 
     def addchild(self, node, child):
-        node.children.append(self.nodefrom(child))
+        if child is None:
+            return
+        new = self.nodefrom(child)
+        if new is not None:
+            node.children.append(self.nodefrom(child))
+        elif isinstance(child, collections.abc.Iterable):
+            for ch in child:
+                self.addchild(node, ch)
+        else:
+            raise Exception("No node conversion known for %s objects" % str(type(ob)))
 
     def addattr(self, node, k, v):
         if v is not None:
@@ -74,3 +83,9 @@ class constructor(object):
 
     def __getattr__(self, name):
         return self._elcls(self._ns, name, self._ctx)
+
+class doctype(node):
+    def __init__(self, rootname, pubid, dtdid):
+        self.rootname = rootname
+        self.pubid = pubid
+        self.dtdid = dtdid