forked from extern/nushell
40 lines
1.4 KiB
Rust
40 lines
1.4 KiB
Rust
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use num_format::Locale;
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#[cfg(debug_assertions)]
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pub const LOCALE_OVERRIDE_ENV_VAR: &str = "NU_TEST_LOCALE_OVERRIDE";
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pub fn get_system_locale() -> Locale {
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let locale_string = get_system_locale_string().unwrap_or_else(|| String::from("en-US"));
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// Since get_locale() and Locale::from_name() don't always return the same items
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// we need to try and parse it to match. For instance, a valid locale is de_DE
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// however Locale::from_name() wants only de so we split and parse it out.
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let locale_string = locale_string.replace('_', "-"); // en_AU -> en-AU
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match Locale::from_name(&locale_string) {
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Ok(loc) => loc,
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_ => {
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let all = num_format::Locale::available_names();
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let locale_prefix = &locale_string.split('-').collect::<Vec<&str>>();
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if all.contains(&locale_prefix[0]) {
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// eprintln!("Found alternate: {}", &locale_prefix[0]);
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Locale::from_name(locale_prefix[0]).unwrap_or(Locale::en)
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} else {
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// eprintln!("Unable to find matching locale. Defaulting to en-US");
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Locale::en
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}
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}
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}
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}
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#[cfg(debug_assertions)]
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fn get_system_locale_string() -> Option<String> {
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std::env::var(LOCALE_OVERRIDE_ENV_VAR)
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.ok()
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.or_else(sys_locale::get_locale)
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}
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#[cfg(not(debug_assertions))]
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fn get_system_locale_string() -> Option<String> {
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sys_locale::get_locale()
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}
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