module Sinatra::Templates

def find_template(views, name, engine)
  yield ::File.join(views, "#{name}.#{@preferred_extension}")
  if Tilt.respond_to?(:mappings)
    Tilt.mappings.each do |ext, engines|
      next unless ext != @preferred_extension and engines.include? engine
      yield ::File.join(views, "#{name}.#{ext}")
    end
  else
    Tilt.default_mapping.extensions_for(engine).each do |ext|
      yield ::File.join(views, "#{name}.#{ext}") unless ext == @preferred_extension
    end
  end
end