Clean up some undocumented stuff.

.yardopts

@@ -3,6 +3,7 @@
 --markup-provider maruku
 --default-return  ""
 --title           "Haml/Sass Documentation"
+--query           'object.type != :classvariable'
 --hide-void-return
 --protected
 --no-private

Rakefile

@@ -251,6 +251,7 @@ OPTS
   YARD::Rake::YardocTask.new do |t|
     t.files = FileList.new(scope('lib/**/*.rb')) do |list|
       list.exclude('lib/haml/template/*.rb')
+      list.exclude('lib/haml/railtie.rb')
       list.exclude('lib/haml/helpers/action_view_mods.rb')
       list.exclude('lib/haml/helpers/xss_mods.rb')
       list.exclude('lib/sass/plugin/merb.rb')

lib/haml/filters.rb

@@ -308,6 +308,8 @@ END
         ::RedCloth.new(text).to_html(:textile)
       end
     end
+    # An alias for the Textile filter,
+    # since the only available Textile parser is RedCloth.
     RedCloth = Textile
     Filters.defined['redcloth'] = RedCloth
 

lib/haml/helpers.rb

@@ -577,6 +577,7 @@ END
   end
 end
 
+# @private
 class Object
   # Haml overrides various `ActionView` helpers,
   # which call an \{#is\_haml?} method

lib/haml/precompiler.rb

@@ -146,6 +146,7 @@ END
     class Line < Struct.new(:text, :unstripped, :full, :index, :precompiler, :eod)
       alias_method :eod?, :eod
 
+      # @private
       def tabs
         line = self
         @tabs ||= precompiler.instance_eval do

lib/haml/util.rb

@@ -251,6 +251,10 @@ module Haml
       raise Haml::Error.new("Expected #{text.inspect} to be HTML-safe.")
     end
 
+    # The class for the Rails SafeBuffer XSS protection class.
+    # This varies depending on Rails version.
+    #
+    # @return [Class]
     def rails_safe_buffer_class
       return ActionView::SafeBuffer if defined?(ActionView::SafeBuffer)
       ActiveSupport::SafeBuffer

lib/sass/tree/if_node.rb

@@ -30,6 +30,7 @@ module Sass::Tree
       @last_else = node
     end
 
+    # @see Node#options=
     def options=(options)
       super
       self.else.options = options if self.else