==================
comment
==================

<html>
  {# comment #}
  content
  {% comment optional_label %}
    content
  {% endcomment %}
  content
  {# {{ variable }} {% statement %} {# comment #} content #}
  content
  {% comment optional_label %}
  {% comment optional_label %}
  {% comment optional_label %}
  {% endcomment %}
  {% endcomment %}
  {% endcomment %}
</html>

---

(template
  (content)
  (unpaired_comment)
  (content)
  (paired_comment)
  (content)
  (unpaired_comment)
  (content)
  (paired_comment)
  (content))
