ultraviolet_table_based_numbers.rb

code = Uv.parse(code, "xhtml", "ruby", false, "sunburst")

# semantics (add <code> tag)
code = code.gsub(/^<pre class="([a-zA-Z_-]+)">/,%Q[<pre><code lang="\1">])
code = code.gsub(/<\/pre>$/,'</code></pre>')

# Add line numbers using a table (so they aren't included in selections!
lines = code.split(/\n/).size
%Q[<table cellpadding="0" cellspacing="0">
  <tbody>
    <tr>
      <td valign="top" align="right"><pre>#{(1...lines).to_a.join("\n")}</pre></td>
      <td valign="top">#{code}</td>
    </tr>
  </tbody>
</table>]