Templating in GNU Artanis looks very similar to Rails.
The Rails code:
<% if( @fullscreen == 1 ) %> <%= "<div class='full'><p>...</p></div>" %> <% end %>
And the same function in GNU Artanis code:
<% (if (= fullscreen 1) %> <% "<div class='full'><p>...</p></div>" %> <% ) %>