1 files changed, 8 insertions, 15 deletions
diff --git a/actionpack/lib/action_view/renderer/abstract_renderer.rb b/actionpack/lib/action_view/renderer/abstract_renderer.rb
index 60c527beeb..52473cd222 100644
--- a/actionpack/lib/action_view/renderer/abstract_renderer.rb
+++ b/actionpack/lib/action_view/renderer/abstract_renderer.rb
@@ -1,7 +1,7 @@
 module ActionView
   class AbstractRenderer #:nodoc:
     delegate :find_template, :template_exists?, :with_fallbacks, :update_details,
-      :with_layout_format, :formats, :freeze_formats, :to => :@lookup_context
+      :with_layout_format, :formats, :to => :@lookup_context
 
     def initialize(lookup_context)
       @lookup_context = lookup_context
@@ -11,24 +11,17 @@ module ActionView
       raise NotImplementedError
     end
 
-    # Checks if the given path contains a format and if so, change
-    # the lookup context to take this new format into account.
-    def wrap_formats(value)
-      return yield unless value.is_a?(String)
+    protected
 
-      if value.sub!(formats_regexp, "")
-        update_details(:formats => [$1.to_sym]){ yield }
-      else
-        yield
+    def extract_details(options)
+      details = {}
+      @lookup_context.registered_details.each do |key|
+        next unless value = options[key]
+        details[key] = Array(value)
       end
+      details
     end
 
-    def formats_regexp
-      @@formats_regexp ||= /\.(#{Mime::SET.symbols.join('|')})$/
-    end
-
-    protected
-
     def instrument(name, options={})
       ActiveSupport::Notifications.instrument("render_#{name}.action_view", options){ yield }
     end