myblog/node_modules/pug/test/output/comments.html

<!-- foo-->
<ul>
  <!-- bar-->
  <li>one</li>
  <!-- baz-->
  <li>two</li>
</ul>
<!--
ul
  li foo

-->
<!-- block
// inline follow
li three

-->
<!-- block
// inline followed by tags
ul
  li four

-->
<!--if IE lt 9
// inline
script(src='/lame.js')
// end-inline

-->
<p>five</p>
<div class="foo">// not a comment</div>