{%- assign included_pages = site.html_pages | where_exp:"item", "item.nav_exclude != true" | where_exp:"item", "item.title != nil" -%} {%- comment -%} A nav_order value can be a number or a string. Numbers are sorted by their values, before strings. An omitted nav_order value is equivalent to the title value, except that a numerical title value is treated as a string. The case-sensitivity of string sorting is determined by site.nav_sort. {%- endcomment -%} {%- assign string_ordered_pages = included_pages | where_exp:"item", "item.nav_order == nil" -%} {%- assign nav_ordered_pages = included_pages | where_exp:"item", "item.nav_order != nil" -%} {%- comment -%} The nav_ordered_pages have to be added to number_ordered_pages and string_ordered_pages, depending on the nav_order value. The first character of jsonify is `"` only for strings. {%- endcomment -%} {%- assign nav_ordered_groups = nav_ordered_pages | group_by_exp:"item", "item.nav_order | jsonify | slice: 0" -%} {%- assign number_ordered_pages = "" | split:"X" -%} {%- for group in nav_ordered_groups -%} {%- if group.name == '"' -%} {%- assign string_ordered_pages = string_ordered_pages | concat: group.items -%} {%- else -%} {%- assign number_ordered_pages = number_ordered_pages | concat: group.items -%} {%- endif -%} {%- endfor -%} {%- assign sorted_number_ordered_pages = number_ordered_pages | sort:"nav_order" -%} {%- comment -%} The string_ordered_pages have to be sorted by nav_order, and otherwise title. After grouping them by those values, the groups are sorted, then the items of each group are concatenated. {%- endcomment -%} {%- assign string_ordered_groups = string_ordered_pages | group_by_exp:"item", "item.nav_order | default: item.title | string" -%} {%- if site.nav_sort == 'case_insensitive' -%} {%- assign sorted_string_ordered_groups = string_ordered_groups | sort_natural:"name" -%} {%- else -%} {%- assign sorted_string_ordered_groups = string_ordered_groups | sort:"name" -%} {%- endif -%} {%- assign sorted_string_ordered_pages = "" | split:"X" -%} {%- for group in sorted_string_ordered_groups -%} {%- assign sorted_string_ordered_pages = sorted_string_ordered_pages | concat: group.items -%} {%- endfor -%} {%- assign pages_list = sorted_number_ordered_pages | concat: sorted_string_ordered_pages -%} {%- for node in pages_list -%} {%- if node.parent == nil -%}
• {%- if page.parent == node.title or page.grand_parent == node.title -%} {%- assign first_level_url = node.url | absolute_url -%} {%- endif -%} {%- if node.has_children -%} {%- endif -%} {{ node.title }} {%- if node.has_children -%} {%- assign children_list = pages_list | where: "parent", node.title -%}
  {%- for child in children_list -%}
  • {%- if page.url == child.url or page.parent == child.title -%} {%- assign second_level_url = child.url | absolute_url -%} {%- endif -%} {%- if child.has_children -%} {%- endif -%} {{ child.title }} {%- if child.has_children -%} {%- assign grand_children_list = pages_list | where: "parent", child.title | where: "grand_parent", node.title -%}
    {%- for grand_child in grand_children_list -%}
    • {{ grand_child.title }}
    {%- endfor -%}
    {%- endif -%}
  {%- endfor -%}
  {%- endif -%}
{%- endif -%} {%- endfor -%}