html5.rb

module ActionView
  module Helpers
    module FormHelper
      def email_field(object_name, method, options = {})
        InstanceTag.new(object_name, method, self, options.delete(:object)).to_input_field_tag("email", options)
      end
      def url_field(object_name, method, options = {})
        InstanceTag.new(object_name, method, self, options.delete(:object)).to_input_field_tag("url", options)
      end
      def search_field(object_name, method, options = {})
        InstanceTag.new(object_name, method, self, options.delete(:object)).to_input_field_tag("search", options)
      end
    end
    class FormBuilder
      %w(email_field url_field search_field).each do |selector|
        src = <<-end_src
        def #{selector}(method,options={}) 
          @template.send(#{selector.inspect},@object_name,method,objectify_options(options))
        end
        end_src
        class_eval src, __FILE__, __LINE__        
      end
    end
  end
end