Added Ruby generator support for Symbols

lib/oga/ruby/generator.rb

@@ -172,6 +172,16 @@ end
         ast.to_a[0].inspect
       end
 
+      ##
+      # Processes a Symbol node.
+      #
+      # @param [Oga::Ruby::Node] ast
+      # @return [String]
+      #
+      def on_symbol(ast)
+        ast.to_a[0].to_sym.inspect
+      end
+
       ##
       # Processes a literal node.
       #

spec/oga/ruby/generator_spec.rb

@@ -154,6 +154,14 @@ end
     end
   end
 
+  describe '#on_symbol' do
+    it 'returns a String' do
+      node = Oga::Ruby::Node.new(:symbol, [:foo])
+
+      @generator.on_symbol(node).should == ':foo'
+    end
+  end
+
   describe '#on_lit' do
     it 'returns a String' do
       node = Oga::Ruby::Node.new(:lit, %w{foo})