1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
|
# icu_locale [](https://crates.io/crates/icu_locale)
<!-- cargo-rdme start -->
Canonicalization of locale identifiers based on [`CLDR`] data.
This module is published as its own crate ([`icu_locale`](https://docs.rs/icu_locale/latest/icu_locale/))
and as part of the [`icu`](https://docs.rs/icu/latest/icu/) crate. See the latter for more details on the ICU4X project.
It currently supports locale canonicalization based upon the canonicalization
algorithm from [`UTS #35: Unicode LDML 3. LocaleId Canonicalization`],
as well as the minimize and maximize likely subtags algorithms
as described in [`UTS #35: Unicode LDML 3. Likely Subtags`].
The maximize method potentially updates a passed in locale in place
depending up the results of running the 'Add Likely Subtags' algorithm
from [`UTS #35: Unicode LDML 3. Likely Subtags`].
This minimize method returns a new Locale that is the result of running the
'Remove Likely Subtags' algorithm from [`UTS #35: Unicode LDML 3. Likely Subtags`].
## Examples
```rust
use icu::locale::Locale;
use icu::locale::{LocaleCanonicalizer, TransformResult};
let lc = LocaleCanonicalizer::new();
let mut locale: Locale = "ja-Latn-fonipa-hepburn-heploc"
.parse()
.expect("parse failed");
assert_eq!(lc.canonicalize(&mut locale), TransformResult::Modified);
assert_eq!(locale, "ja-Latn-alalc97-fonipa".parse::<Locale>().unwrap());
```
```rust
use icu::locale::{locale, LocaleExpander, TransformResult};
let lc = LocaleExpander::new();
let mut locale = locale!("zh-CN");
assert_eq!(lc.maximize(&mut locale.id), TransformResult::Modified);
assert_eq!(locale, locale!("zh-Hans-CN"));
let mut locale = locale!("zh-Hant-TW");
assert_eq!(lc.maximize(&mut locale.id), TransformResult::Unmodified);
assert_eq!(locale, locale!("zh-Hant-TW"));
```
```rust
use icu::locale::{locale, LocaleExpander, TransformResult};
use writeable::assert_writeable_eq;
let lc = LocaleExpander::new();
let mut locale = locale!("zh-Hans-CN");
assert_eq!(lc.minimize(&mut locale.id), TransformResult::Modified);
assert_eq!(locale, locale!("zh"));
let mut locale = locale!("zh");
assert_eq!(lc.minimize(&mut locale.id), TransformResult::Unmodified);
assert_eq!(locale, locale!("zh"));
```
[`ICU4X`]: ../icu/index.html
[`CLDR`]: http://cldr.unicode.org/
[`UTS #35: Unicode LDML 3. Likely Subtags`]: https://www.unicode.org/reports/tr35/#Likely_Subtags.
[`UTS #35: Unicode LDML 3. LocaleId Canonicalization`]: http://unicode.org/reports/tr35/#LocaleId_Canonicalization,
<!-- cargo-rdme end -->
## More Information
For more information on development, authorship, contributing etc. please visit [`ICU4X home page`](https://github.com/unicode-org/icu4x).
|
