3 files changed, 16 insertions, 1 deletions
diff --git a/actionpack/lib/action_view/template/handlers.rb b/actionpack/lib/action_view/template/handlers.rb
index 4e22bec6cc..41b14373a3 100644
--- a/actionpack/lib/action_view/template/handlers.rb
+++ b/actionpack/lib/action_view/template/handlers.rb
@@ -4,10 +4,12 @@ module ActionView #:nodoc:
     module Handlers #:nodoc:
       autoload :ERB, 'action_view/template/handlers/erb'
       autoload :Builder, 'action_view/template/handlers/builder'
+      autoload :Raw, 'action_view/template/handlers/raw'
 
       def self.extended(base)
         base.register_default_template_handler :erb, ERB.new
         base.register_template_handler :builder, Builder.new
+        base.register_template_handler :raw, Raw.new
       end
 
       @@template_handlers = {}
diff --git a/actionpack/lib/action_view/template/handlers/raw.rb b/actionpack/lib/action_view/template/handlers/raw.rb
new file mode 100644
index 0000000000..0c0d1fffcb
--- /dev/null
+++ b/actionpack/lib/action_view/template/handlers/raw.rb
@@ -0,0 +1,11 @@
+module ActionView
+  module Template::Handlers
+    class Raw
+      def call(template)
+        escaped = template.source.gsub(':', '\:')
+
+        '%q:' + escaped + ':;'
+      end
+    end
+  end
+end
diff --git a/actionpack/lib/action_view/template/resolver.rb b/actionpack/lib/action_view/template/resolver.rb
index 08155af013..fa2038f78d 100644
--- a/actionpack/lib/action_view/template/resolver.rb
+++ b/actionpack/lib/action_view/template/resolver.rb
@@ -171,7 +171,9 @@ module ActionView
     def extract_handler_and_format(path, default_formats)
       pieces = File.basename(path).split(".")
       pieces.shift
-      handler = Template.handler_for_extension(pieces.pop)
+      extension = pieces.pop
+      ActiveSupport::Deprecation.warn "The file #{path} did not specify a template handler. The default is currently ERB, but will change to RAW in the future." unless extension
+      handler = Template.handler_for_extension(extension)
       format  = pieces.last && Mime[pieces.last]
       [handler, format]
     end