--- /dev/null
+class R2Template < Tilt::Template
+ self.default_mime_type = 'text/css'
+
+ def self.engine_initialized?
+ defined? ::R2
+ end
+
+ def initialize_engine
+ require_template_library "r2"
+ end
+
+ def prepare
+ @output = R2.r2(data)
+ end
+
+ def evaluate(scope, locals, &block)
+ @output
+ end
+end
+
+Rails.application.assets.register_engine ".r2", R2Template