Tonico Strasser schrieb: > Hi, > > is this expected to raise an exception?: > > <div metal:use-macro="x|default"> > <div metal:use-macro="y"> > I'm not macro y. > </div> > </div> > > 'x' and 'y' are not defined. > > If yes I'll file a bug. Bug and use case: <http://www.zope.org/Collectors/Zope3-dev/420> Tonico