hook_language_types_info_alter(array &$language_types) Perform alterations on language types.
hook_transliteration_overrides_alter(&$overrides, $langcode) Provide language-specific overrides for transliteration
hook_language_negotiation_info_alter(array &$negotiation_info) Perform alterations on language negotiation
hook_language_switch_links_alter(array &$links, $type, $path) Perform alterations on language switcher
hook_language_types_info() Define language types. Return value
Internationalization and translation The principle of internationalization is that it should be possible to make a Drupal site in any language
hook_language_fallback_candidates_OPERATION_alter(array &$candidates, array $context) Allow modules to
hook_language_fallback_candidates_alter(array &$candidates, array $context) Allow modules to alter the
Transliterate from Unicode to US-ASCII Transliteration is the process of translating individual non-US-ASCII characters into ASCII characters