Make your own template block evaluator thing

template_block_example.rb

# In a helper
def box(&block)
  ("<div class='box'>" + capture(&block) + "</div>").html_safe
end

# In your view template
#<%= box do %>
#  <p>Hello World!</p>
#<% end %>


# Same thing, but with some options to specify CSS class
def box(options = {}, &block)
  options = {:class => ''}.merge(options) # Make sure the key exists, since we're using it later
  ("<div class='#{options[:class]}'>" + capture(&block) + "</div>").html_safe
end

# Alternative method of doing the same thing
def box(options = {}, &block)
  ("<div class='#{options.has_key?(:class) ? options[:class] : ''}'>" + capture(&block) + "</div>").html_safe
end

# In your view template
#<%= box :class => 'some-string' do %>
#  <p>Hello World!</p>
#<% end %>