json_gettext/key_copy/keys/
locale.rs

1use std::{
2    fmt::{self, Display, Formatter, Write},
3    str::FromStr,
4};
5
6use crate::unic_langid::{
7    LanguageIdentifier, LanguageIdentifierError,
8    subtags::{Language, Region},
9};
10
11#[derive(Debug, Copy, Clone, Eq, PartialEq, Ord, PartialOrd, Hash)]
12pub struct Key(pub Language, pub Option<Region>);
13
14impl Display for Key {
15    #[inline]
16    fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), fmt::Error> {
17        f.write_str(self.0.as_str())?;
18
19        if let Some(region) = self.1 {
20            f.write_char('_')?;
21            f.write_str(region.as_str())?;
22        }
23
24        Ok(())
25    }
26}
27
28impl FromStr for Key {
29    type Err = LanguageIdentifierError;
30
31    #[inline]
32    fn from_str(s: &str) -> Result<Self, Self::Err> {
33        let langid = LanguageIdentifier::from_str(s)?;
34
35        let language = langid.language;
36        let region = langid.region;
37
38        Ok(Key(language, region))
39    }
40}
41
42/**
43Create a literal key.
44
45```rust
46use std::str::FromStr;
47
48use json_gettext::key;
49use json_gettext::unic_langid::subtags::{Language, Region};
50use json_gettext::Key;
51
52let key = key!("en_US");
53
54assert_eq!(Key(Language::from_str("en").unwrap(), Some(Region::from_str("US").unwrap())), key);
55```
56*/
57#[macro_export]
58macro_rules! key {
59    ($key:expr) => {{
60        let langid = $crate::unic_langid::langid!($key);
61
62        $crate::Key(langid.language, langid.region)
63    }};
64}
json_gettext/key_copy/keys/locale.rs

json_gettext/key_copy/keys/
locale.rs
