Example Haml Helper for Creating a Submit Button with Nested Span for its Label

gistfile1.txt

def submit_button(options={})
  text = options.delete(:text) || "Submit"
  options.merge! :type => :submit
  
  capture_haml do
    haml_concat(content_tag(:button, options) do
      haml_concat content_tag(:span, text)
    end)
  end
end