locale_select

A simple library for selecting the user's locale preferences for various ICU4X modules, such as calendar, datetime and decimals.

Alternatives

This library is specific to ICU4X, but there are many Rust APIs with a similar focus. Here are some that I could find, and what they seem to do differently:

• simple-locale: very close to this crate, but doesn't use ICU4X libraries
• locale_settings: unmaintained(?) version of simple-locale::settings
• sys_locale: single locale instead of per-category
• utf8-locale, locale-config: categories are less strongly typed
• gettextrs::setlocale(): gettext bindings, this function can query the locale by setting the locale to a null string

Useful links

• POSIX:
  • Locale category data: https://www.man7.org/linux/man-pages/man5/locale.5.html
  • Locale category definitions: https://www.man7.org/linux/man-pages/man7/locale.7.html
  • Description of locale names: https://www.gnu.org/software/libc/manual/html_node/Locale-Names.html
  • Locale spec: https://pubs.opengroup.org/onlinepubs/9699919799/basedefs/V1_chap07.html
  • Localization variables spec: https://pubs.opengroup.org/onlinepubs/9699919799/basedefs/V1_chap08.html#tag_08_02
  • Unicode handling of POSIX identifiers: https://unicode.org/reports/tr35/tr35.html#Legacy_Variants