{% 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>