expander: Now resilient against empty blocks {{}}

1 files changed, 8 insertions, 0 deletions

diff --git a/mwlib/expander.py b/mwlib/expander.py
index e5e4049..867af19 100755
--- a/mwlib/expander.py
+++ b/mwlib/expander.py
@@ -206,6 +206,11 @@ class Parser(object):
         # find the name
         name = Node()
         t.children.append(name)
+
+        # empty blocks are a fact of life
+        if len(children) == 0:
+            return t
+        
         for idx, c in enumerate(children):
             if c==u'|':
                 break
@@ -430,6 +435,9 @@ class Expander(object):
         if name.startswith("[["):
             return None
 
+        if name == '':
+            return ''
+
         if name.startswith(":"):
             log.info("including article")
             raw = self.db.getRawArticle(name[1:])