language.mappings.yml

language_get_browser_drupal_langcode_mappings in drupal/core/modules/language/language.module

Returns language mappings between browser and Drupal language codes.

language_set_browser_drupal_langcode_mappings in drupal/core/modules/language/language.module

Stores language mappings between browser and Drupal language codes.

# Browsers use different language codes to refer to the same languages,
# these defaults handles the most common cases.
zh-tw: zh-hant # Taiwan Chinese in traditional script
zh-hk: zh-hant # Hong Kong Chinese in traditional script
zh-mo: zh-hant # Macao Chinese in traditional script
zh-cht: zh-hant # traditional Chinese
zh-cn: zh-hans # PRC Mainland Chinese in simplified script
zh-sg: zh-hans # Singapore Chinese in simplified script
zh-chs: zh-hans # simplified Chinese