provide access to the parsed Nokogiri document fragment when rendering marked up content.

lib/gollum/markup.rb

@@ -44,7 +44,12 @@ module Gollum
       end
       data = process_tags(data)
       data = process_code(data)
-      data = sanitize.clean!(data) if sanitize
+      if sanitize || block_given?
+        doc  = Nokogiri::HTML::DocumentFragment.parse(data)
+        doc  = sanitize.clean_node!(doc) if sanitize
+        yield doc if block_given?
+        data = doc_to_html(doc)
+      end
       data = process_tex(data)
       data.gsub!(/<p><\/p>/, '')
       data

lib/gollum/page.rb

@@ -132,8 +132,8 @@ module Gollum
     # Public: The formatted contents of the page.
     #
     # Returns the String data.
-    def formatted_data
-      @blob && @wiki.markup_class.new(self).render(historical?)
+    def formatted_data(&block)
+      @blob && @wiki.markup_class.new(self).render(historical?, &block)
     end
 
     # Public: The format of the page.

test/test_markup.rb

@@ -25,6 +25,31 @@ context "Markup" do
     end
   end
 
+  test "Gollum::Markup#render yields a DocumentFragment" do
+    yielded = false
+    @wiki.write_page("Yielded", :markdown, "abc", commit_details)
+
+    page   = @wiki.page("Yielded")
+    markup = Gollum::Markup.new(page)
+    markup.render do |doc|
+      assert_kind_of Nokogiri::HTML::DocumentFragment, doc
+      yielded = true
+    end
+    assert yielded
+  end
+
+  test "Gollum::Page#formatted_data yields a DocumentFragment" do
+    yielded = false
+    @wiki.write_page("Yielded", :markdown, "abc", commit_details)
+
+    page   = @wiki.page("Yielded")
+    page.formatted_data do |doc|
+      assert_kind_of Nokogiri::HTML::DocumentFragment, doc
+      yielded = true
+    end
+    assert yielded
+  end
+
   #########################################################################
   #
   # Links