# File lib/merb-slices/router_ext.rb, line 37
  def add_slice(slice_module, options = {}, &block)
    if Merb::Slices.exists?(slice_module)
      options = { :path => options } if options.is_a?(String)
      slice_module = Object.full_const_get(slice_module.to_s.camel_case) if slice_module.class.in?(String, Symbol)
      namespace = options[:namespace] || slice_module.identifier_sym
      options[:path] ||= options[:path_prefix] || slice_module[:path_prefix] || options[:namespace] || slice_module.identifier
      options[:prepend_routes] = block if block_given?
      slice_module[:path_prefix] = options[:path]
      Merb.logger.verbose!("Mounting slice #{slice_module} at /#{options[:path]}")
      
      # reset the inherited controller prefix - especially for 'slice' entries (see below)
      @options[:controller_prefix] = nil if options.delete(:reset_controller_prefix)
      
      # setup routes - capture the slice's routes for easy reference
      self.namespace(namespace, options.except(:default_routes, :prepend_routes, :append_routes, :path_prefix)) do |ns|
        Merb::Slices.named_routes[slice_module.identifier_sym] = ns.capture do
          options[:prepend_routes].call(ns) if options[:prepend_routes].respond_to?(:call)
          slice_module.setup_router(ns)     # setup the routes from the slice itself
          options[:append_routes].call(ns)  if options[:append_routes].respond_to?(:call)
        end
      end
    else 
      Merb.logger.info!("Skipped adding slice #{slice_module} to router...")
    end
    self
  end