class Tilt::SassTemplate

def sass_options
  path = File.absolute_path(eval_file)
  path = '/' + path unless path.start_with?('/')
  opts = @options.dup
  opts[:url] = ::URI::File.build([nil, ::URI::DEFAULT_PARSER.escape(path)]).to_s
  opts[:syntax] = :indented
  opts.delete_if{|k| !ALLOWED_KEYS.include?(k)} if ALLOWED_KEYS
  opts
end