Update the TODO list.

lib/python/TAL/README.txt

@@ -75,7 +75,12 @@ redistributed under the Zope Public License.
 TO DO
 -----
 
-- Implement on-error, when it's approved.
+- Implement on-error.  Assume that the evaluation engine's evaluate()
+  functions raise TALESError (defined where???) on all exceptions.
+
+- Bring DummyEngine.py up to specs.
+
+- Disallow TAL on start-tags whose end-tag is implied.
 
 - The call to emitSubstitution() in emitEndElement() for "replace"
   doesn't pass in anything for attrDict.
@@ -89,18 +94,10 @@ TO DO
 - Incorporate line number and offset information into remaining
   compile-time exceptions.
 
-- Incorporate line number and offset information into run-time
-  exceptions, including those raised by eval() of "python:..."
-  expressions.  (But how?  Can we just stick lineno, offset attributes
-  on existing exceptions?)
-
-- HTMLTALParser.py and TALParser.py are silly names too.  Should be
+- HTMLTALParser.py and TALParser.py are silly names.  Should be
   HTMLTALCompiler.py and XMLTALCompiler.py (or maybe shortened,
   without "TAL"?)
 
-- The HTML parser should complain about garbage in start elements
-  attributes, e.g. <a href="foo" !@#$%>.
-
 - The HTML TAL compiler should preserve more information about the
   start element, e.g. <img ismap /> should be output like that, not as
   <img ismap="ismap">.