module ActionView::Helpers::TagHelper

def content_tag_with_haml(name, *args, &block)
  return content_tag_without_haml(name, *args, &block) unless is_haml?
  preserve = haml_buffer.options.fetch(:preserve, DEFAULT_PRESERVE_OPTIONS).include?(name.to_s)
  if block_given? && block_is_haml?(block) && preserve
    return content_tag_without_haml(name, *args) do
      haml_buffer.fix_textareas!(Haml::Helpers.preserve(&block)).html_safe
    end
  end
  content = content_tag_without_haml(name, *args, &block)
  if preserve && content
    content = haml_buffer.fix_textareas!(Haml::Helpers.preserve(content)).html_safe
  end
  content
end