{######################################
               menu widget

Provide the widget with a content page
      that contains your menu:

{{ widgets::menu(content="_common/menus/main.md") }}

Separate entries with a thematic break:
    either ---, ~~~, ___ or <hr />

An entry can be either text, a link, or
a submenu. A submenu is an actual list
   defined using Markdown or HTML.

 You cannot use <p> tags in the menu.
######################################}
{% macro menu(content) %}
<nav class="nav-menu" role="navigation">
    {%- set source = self::i18n_content(path=content) -%}
    {% set entries = source | split(pat="<hr />") %}
    {#- fetch page content and divide it with separator -#}
    {%- for entry in entries %}
        {{ entry | trim | replace(from="<p>", to="") | replace(from="</p>", to="") | safe }}
        {# strip paragraph tags away for nicer markup #}
    {%- endfor %}
</nav>
{% endmacro menu %}

{%- macro i18n_path(path) -%}
    {% if lang == "en" %}{{ path }}
    {%- else -%}
        {%- set parts = path | split(pat=".md") -%}
        {%- for part in parts -%}
            {%- if part and not loop.first -%}.md{%- endif -%}
            {%- if not loop.last -%}{{ part }}{%- endif -%}
        {%- endfor -%}
        .{{ lang }}.md
    {%- endif -%}
{%- endmacro i18n_path -%}

{%- macro i18n_content(path) -%}
    {{ get_page(path=self::i18n_path(path=path)) | get(key="content") }}
{%- endmacro i18n_content -%}