Register a class that knows how to handle template files with the given extension. This can be used to implement new template types. The constructor for the class must take the ActiveView::Base instance as a parameter, and the class must implement a #render method that takes the contents of the template to render as well as the Hash of local assigns available to the template. The #render method ought to return the rendered template as a string.
# File actionpack/lib/action_view/base.rb, line 244 def self.register_template_handler(extension, klass) @@template_handlers[extension.to_sym] = klass end