module ActionView::Template::Handlers

def self.extended(base) 

def self.extended(base)
  base.register_default_template_handler :erb, ERB
  base.register_template_handler :rjs, RJS
  base.register_template_handler :builder, Builder
  # TODO: Depreciate old template extensions
  base.register_template_handler :rhtml, ERB
  base.register_template_handler :rxml, Builder
end

def self.extensions 

def self.extensions
  @@template_extensions ||= @@template_handlers.keys
end

def handler_class_for_extension(extension) 

def handler_class_for_extension(extension)
  (extension && registered_template_handler(extension.to_sym)) || @@default_template_handlers
end

def register_default_template_handler(extension, klass) 

def register_default_template_handler(extension, klass)
  register_template_handler(extension, klass)
  @@default_template_handlers = klass
end

def register_template_handler(extension, klass)

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

def registered_template_handler(extension) 

def registered_template_handler(extension)
  extension && @@template_handlers[extension.to_sym]
end

def template_handler_extensions 

def template_handler_extensions
  @@template_handlers.keys.map {|key| key.to_s }.sort
end