{%- assign dirs = include.page.url | split: '/' -%} {%- assign root_page = site.servers | where: “code”, dirs | first -%} <nav class=“navbar-light mb-5”>

<a class="navbar-brand" href="{{ root_page.url | prepend: site.baseurl }}">{%- include fmi.html data = root_page.title datas = root_page.titles -%}</a>
{%- assign server_pages = site.servers | where: "code", dirs[2] -%}
<nav class="flex-column nav nav-pills">
    {%- for server_page in site.servers -%}
    {%- assign server_page_dirs = server_page.url | split: '/' -%}
    {%- if server_page_dirs[2] == root_page.code -%}
    {%- if server_page_dirs[3] -%}
    {%- unless server_page_dirs[4] -%}
    {%- if dirs[3] == server_page_dirs[3] -%}
    <a class="nav-link active" href="{{ server_page.url | prepend: site.baseurl }}">{%- include page-title.html page =
            server_page -%}</a>
    {%- else -%}
    <a class="nav-link" href="{{ server_page.url | prepend: site.baseurl }}">{%- include page-title.html page =
            server_page -%}</a>
    {%- endif -%}
    {%- endunless -%}
    {%- endif -%}
    {%- endif -%}
    {%- endfor -%}
</nav>

</nav>