Index: parser.py
===================================================================
--- parser.py	(revision 84171)
+++ parser.py	(working copy)
@@ -112,6 +112,14 @@
         self.goahead(1)
 
     def error(self, message):
+        """Report a parse error.
+
+        This is called by HTMLParser to report a parse error.  The default
+        implementation raises HTMLParseError.  If you override this method
+        to do something other than raise an exception (such as logging the
+        parse error), the HTMLParser will continue parsing on a "best
+        effort" basis after this method returns.
+        """
         raise HTMLParseError(message, self.getpos())
 
     __starttag_text = None
@@ -302,6 +310,7 @@
                 return -1
             self.updatepos(i, j)
             self.error("malformed start tag")
+            return j
         raise AssertionError("we should not get here!")
 
     # Internal -- parse endtag, return end or -1 if incomplete
@@ -315,6 +324,7 @@
         match = endtagfind.match(rawdata, i) # </ + tag + >
         if not match:
             self.error("bad end tag: %r" % (rawdata[i:j],))
+            return j
         tag = match.group(1)
         self.handle_endtag(tag.lower())
         self.clear_cdata_mode()