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use unic_langid_impl::likelysubtags::{maximize, minimize, CLDR_VERSION};
use unic_langid_impl::subtags;
static STRINGS: &[(&str, Option<&str>)] = &[
("en-US", Some("en-Latn-US")),
("en-GB", Some("en-Latn-GB")),
("es-AR", Some("es-Latn-AR")),
("it", Some("it-Latn-IT")),
("zh-Hans-CN", None),
("de-AT", Some("de-Latn-AT")),
("pl", Some("pl-Latn-PL")),
("fr-FR", Some("fr-Latn-FR")),
("de-AT", Some("de-Latn-AT")),
("sr-Cyrl-SR", None),
("nb-NO", Some("nb-Latn-NO")),
("fr-FR", Some("fr-Latn-FR")),
("mk", Some("mk-Cyrl-MK")),
("uk", Some("uk-Cyrl-UA")),
("und-PL", Some("pl-Latn-PL")),
("und-Latn-AM", Some("ku-Latn-AM")),
("ug-Cyrl", Some("ug-Cyrl-KZ")),
("sr-ME", Some("sr-Latn-ME")),
("mn-Mong", Some("mn-Mong-CN")),
("lif-Limb", Some("lif-Limb-IN")),
("gan", Some("gan-Hans-CN")),
("zh-Hant", Some("zh-Hant-TW")),
("yue-Hans", Some("yue-Hans-CN")),
("unr", Some("unr-Beng-IN")),
("unr-Deva", Some("unr-Deva-NP")),
("und-Thai-CN", Some("lcp-Thai-CN")),
("ug-Cyrl", Some("ug-Cyrl-KZ")),
("en-Latn-DE", None),
("pl-FR", Some("pl-Latn-FR")),
("de-CH", Some("de-Latn-CH")),
("tuq", Some("tuq-Latn-TD")),
("sr-ME", Some("sr-Latn-ME")),
("ng", Some("ng-Latn-NA")),
("klx", Some("klx-Latn-PG")),
("kk-Arab", Some("kk-Arab-CN")),
("en-Cyrl", Some("en-Cyrl-US")),
("und-Cyrl-UK", Some("ru-Cyrl-UK")),
("und-Arab", Some("ar-Arab-EG")),
("und-Arab-FO", Some("ar-Arab-FO")),
("zh-TW", Some("zh-Hant-TW")),
];
fn extract_input(
s: &str,
) -> (
subtags::Language,
Option<subtags::Script>,
Option<subtags::Region>,
) {
let chunks: Vec<&str> = s.split("-").collect();
let lang: subtags::Language = chunks[0].parse().unwrap();
let (script, region) = if let Some(s) = chunks.get(1) {
if let Ok(script) = s.parse() {
let region = chunks.get(2).map(|r| r.parse().unwrap());
(Some(script), region)
} else {
let region = s.parse().unwrap();
(None, Some(region))
}
} else {
(None, None)
};
(lang, script, region)
}
fn extract_output(
s: Option<&str>,
) -> Option<(
subtags::Language,
Option<subtags::Script>,
Option<subtags::Region>,
)> {
s.map(|s| {
let chunks: Vec<&str> = s.split("-").collect();
(
chunks[0].parse().unwrap(),
chunks.get(1).map(|s| s.parse().unwrap()),
chunks.get(2).map(|s| s.parse().unwrap()),
)
})
}
#[test]
fn maximize_test() {
for i in STRINGS {
let chunks = extract_input(i.0);
let result = maximize(chunks.0, chunks.1, chunks.2);
assert_eq!(extract_output(i.1), result);
}
}
#[test]
fn version_works() {
assert_eq!(CLDR_VERSION, "44");
}
#[test]
fn minimize_test() {
let lang = "zh".parse().unwrap();
let script = "Hant".parse().unwrap();
let result = minimize(lang, Some(script), None);
assert_eq!(result, Some(extract_input("zh-TW")));
let lang = "en".parse().unwrap();
let script = "Latn".parse().unwrap();
let region = "US".parse().unwrap();
let result = minimize(lang, Some(script), Some(region));
assert_eq!(result, Some(extract_input("en")));
}