Up to the engines now, Jade implements django-like inheritance and includes, same with swig and a few of the others. There are a few that do not have any notion

Up to the engines now, Jade implements django-like inheritance and includes, same with swig and a few of the others. There are a few that do not have any notion of IO so I plan on having a third-party implementation of the old partial() function, removing it greatly simplified the view system for people who were not using it previously anyway, and some of the rules partial() employed were needlessly confusing (collections etc).