{% assign pageurl = page.url | remove: 'index.html' %}
{% assign trail_first_page = paginator.page_trail[0].num %}
{% assign trail_last_page = paginator.page_trail[-1].num %}

{% if paginator.total_pages > 1 %}
<ul class="pager">
    {% if paginator.first_page %}
      <li class="pager__item{% if pageurl == paginator.first_page_path %} selected{% endif %}">
          <a class="pager__link" href="{{ paginator.first_page_path | prepend: site.baseurl | replace: '//', '/' }}">1</a>
      </li>
    {% endif %}

    {% if trail_first_page > paginator.first_page %}
      <li class="pager__item disabled"><span class="pager__link">…</span></li>
    {% endif %}

    {% if paginator.page_trail %}
      {% for trail in paginator.page_trail %}
        {% assign path = trail.path | remove: 'index.html' %}
        {% if path != paginator.first_page_path and path != paginator.last_page_path %}
          <li class="pager__item{% if page.url == trail.path %} selected{% endif %}">
              <a class="pager__link" href="{{ trail.path | prepend: site.baseurl | replace: '//', '/' }}" title="{{trail.title}}">{{ trail.num }}</a>
          </li>
        {% endif %}
      {% endfor %}
    {% endif %}

    {% if trail_last_page < paginator.last_page %}
    <li class="pager__item disabled"><span class="pager__link">…</span></li>
    {% endif %}

    {% if paginator.last_page %}
      <li class="pager__item{% if pageurl == paginator.last_page_path %} selected{% endif %}">
          <a class="pager__link" href="{{ paginator.last_page_path | prepend: site.baseurl | replace: '//', '/' }}">{{ paginator.last_page }}</a>
      </li>
    {% endif %}
</ul>
{% endif %}