{% for translation in site.translations %}
{%- assign locale_tuple = translation.locale | split: "_" -%}
{%- assign lang = locale_tuple | first -%}
{%- assign region = locale_tuple | last -%}
{%- assign filename_prefix = 'index-' -%}
{%- assign filename_suffix = '.html' -%}
{%- if lang == 'zh' -%}
{%- if region == 'TW' -%}
{%- assign hreflang = 'zh-Hant' -%}
{%- assign downcase_hreflang = 'zh-Hant' | downcase -%}
{%- else -%}
{%- assign hreflang = 'zh-Hans' -%}
{%- assign downcase_hreflang = 'zh-Hans' | downcase -%}
{%- endif -%}
{%- elsif lang == 'pt' -%}
{%- assign downcase_region = region | downcase -%}
{%- elsif lang == 'gal' -%}
{%- assign lang = gl -%}
{%- else -%}
{%- endif -%}
{%- endfor -%}