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{% include base_path %}
{% assign navigation = site.data.navigation[include.nav] %}
<nav class="nav__list">
{% if page.sidebar.title %}<header><h4 class="nav__title" style="padding: 0;">{{ page.sidebar.title }}</h4></header>{% endif %}
<ul>
{% for nav in navigation %}
<li>
{% if nav.url %}
{% comment %}internal/external URL check{% endcomment %}
{% if nav.url contains "://" %}
{% assign domain = "" %}
{% else %}
{% assign domain = base_path %}
{% endif %}
<a href="{{ domain }}{{ nav.url }}"><span class="nav__sub-title">{{ nav.title }}</span></a>
{% else %}
<span class="nav__sub-title">{{ nav.title }}</span>
{% endif %}
{% if nav.children != null %}
<ul>
{% for child in nav.children %}
{% comment %}internal/external URL check{% endcomment %}
{% if child.url contains "://" %}
{% assign domain = "" %}
{% else %}
{% assign domain = base_path %}
{% endif %}
{% comment %}set "active" class on current page{% endcomment %}
{% if child.url == page.url %}
{% assign active = "active" %}
{% else %}
{% assign active = "" %}
{% endif %}
<li><a href="{{ domain }}{{ child.url }}" class="{{ active }}">{{ child.title }}</a></li>
{% endfor %}
</ul>
{% endif %}
</li>
{% endfor %}
</ul>
</nav>