title: in sinatra using erubis, default setting escape_html is true. sometimes hava to unescape
body: <p>In Sinatra, using erubis, the default setting for <code>escape_html</code> is <code>true</code>.</p>
  
  <p>But sometimes I want to to unescape, because, I do not want to add too much escape_html. Don't repeat yourself. :)</p>
  
  <p><code>helpers:</code></p>
  
  <pre><code>def raw(string)
    CGI::unescape_html(string)
  end
  </code></pre>
  
  <p><code>views:</code></p>
  
  <pre><code>&lt;div class="body"&gt;
    &lt;%= raw "&lt;h1&gt;Thanks for help...&lt;/h1&gt;" %&gt;
  &lt;/div&gt;
  </code></pre>
  
  <p>does not work.</p>