| // This file is part of ICU4X. For terms of use, please see the file |
| // called LICENSE at the top level of the ICU4X source tree |
| // (online at: https://github.com/unicode-org/icu4x/blob/main/LICENSE ). |
| |
| impl_tinystr_subtag!( |
| /// A single item used in a list of [`Private`](super::Private) extensions. |
| /// |
| /// The subtag has to be an ASCII alphanumerical string no shorter than |
| /// one character and no longer than eight. |
| /// |
| /// # Examples |
| /// |
| /// ``` |
| /// use icu::locid::extensions::private::Subtag; |
| /// |
| /// let subtag1: Subtag = "Foo".parse().expect("Failed to parse a Subtag."); |
| /// |
| /// assert_eq!(subtag1.as_str(), "foo"); |
| /// ``` |
| Subtag, |
| extensions::private, |
| subtag, |
| extensions_private_subtag, |
| 1..=8, |
| s, |
| s.is_ascii_alphanumeric(), |
| s.to_ascii_lowercase(), |
| s.is_ascii_alphanumeric() && s.is_ascii_lowercase(), |
| InvalidExtension, |
| ["foo12"], |
| ["toolooong"], |
| ); |