forgery/templates/macros.html

{% macro compact(name, desc) %}
  {% if not desc %}
    {{ name }}
  {% elif desc | length <= 150 %}
    {{ name }} | {{ desc }}
  {% else %}
    <details>
      <summary>{{ name }} | {{ desc | truncate(length=150) }}</summary>
      {{ desc }}
    </details>
  {% endif %}
{% endmacro compact %}