X-Git-Url: http://dolda2000.com/gitweb/?a=blobdiff_plain;f=wrw%2Fsp%2Fcons.py;h=1cc93ea5e89b45b315c80f076af9e0eef34bf168;hb=e216962e64bbfd0377511f456edc40570f8efb46;hp=ff0d0afa317547a353cca729858b65852db72484;hpb=85ed5fa5dae0fe236584926824f7292b6e697e76;p=wrw.git

diff --git a/wrw/sp/cons.py b/wrw/sp/cons.py
index ff0d0af..1cc93ea 100644
--- a/wrw/sp/cons.py
+++ b/wrw/sp/cons.py
@@ -1,4 +1,4 @@
-import sys
+import sys, collections
 import xml.dom.minidom
 
 class node(object):
@@ -40,7 +40,7 @@ class element(node):
         return self.__todom__(doc).toxml()
 
 class context(object):
-    charset = sys.getfilesystemencoding()
+    charset = (sys.getfilesystemencoding() or "ascii")
 
     def __init__(self):
         self.nodeconv = {}
@@ -57,10 +57,19 @@ 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(new)
+        elif isinstance(child, collections.Iterable):
+            for ch in child:
+                self.addchild(node, ch)
+        else:
+            raise Exception("No node conversion known for %s objects" % str(type(child)))
 
     def addattr(self, node, k, v):
         if v is not None:
@@ -75,3 +84,9 @@ 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