gistfile1.rbx

class ErbEngine < Haml::Engine
  def push_script(text, preserve_script, in_tag = false, preserve_tag = false,
                  escape_html = false, nuke_inner_whitespace = false)
    push_text "<%= #{text.strip} %>"
  end
  
  def push_silent(text, can_suppress = false)
    push_text "<% #{text.strip} %>"
  end
end

gistfile2.txt

<<<<<<<<<<<<< IN:

#moo
  = some('Ruby Codez')
  %span.foo Bar
  - for spartan in warriors
    %q= spartan.profession

-------------

<div id='moo'>
  <%= some('Ruby Codez') %>
  <span class='foo'>Bar</span>
  <% for spartan in warriors %>
  <q>  <%= spartan.profession %>
</q>
  <% end %>
</div>

>>>>>>>>>>>>> OUT