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refactor(tui): replace rust-i18n with phf maps and simple replaces
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,29 @@ | ||
| fn main() { | ||
| generate_locales(); | ||
| } | ||
|
|
||
| fn generate_locales() { | ||
| let path = std::path::Path::new(&std::env::var("OUT_DIR").unwrap()).join("locale_strings.rs"); | ||
| let mut map = phf_codegen::Map::new(); | ||
| let data: toml::Value = | ||
| toml::from_str(&std::fs::read_to_string("locales.toml").unwrap()).unwrap(); | ||
| data.as_table().unwrap().iter().for_each(|(key, t)| { | ||
| let mut key_map = phf_codegen::Map::new(); | ||
| t.as_table().unwrap().iter().for_each(|(lang, value)| { | ||
| key_map.entry(lang, &format!("{:?}", value.as_str().unwrap())); | ||
| }); | ||
| map.entry(key, &format!("{}", key_map.build())); | ||
| }); | ||
|
|
||
| std::fs::write( | ||
| path, | ||
| format!( | ||
| " | ||
| #[allow(clippy::unreadable_literal)] | ||
| static STRINGS: phf::Map<&'static str, phf::Map<&'static str, &'static str>> = {}; | ||
| ", | ||
| map.build() | ||
| ), | ||
| ) | ||
| .unwrap(); | ||
| } |
2 changes: 0 additions & 2 deletions
2
crates/trippy-tui/locales/app.toml → crates/trippy-tui/locales.toml
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,5 +1,3 @@ | ||
| _version = 2 | ||
|
|
||
| [trippy] | ||
| en = "trippy" | ||
| fr = "trippy" | ||
|
|
||
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,80 +1,80 @@ | ||
| use std::sync::{OnceLock, RwLock}; | ||
|
|
||
| const FALLBACK_LOCALE: &str = "en"; | ||
|
|
||
| static CURRENT_LOCALE: OnceLock<RwLock<&str>> = OnceLock::new(); | ||
|
|
||
| pub fn locale() -> &'static str { | ||
| &CURRENT_LOCALE | ||
| .get_or_init(|| RwLock::new(FALLBACK_LOCALE)) | ||
| .read() | ||
| .unwrap() | ||
| } | ||
|
|
||
| /// Set the locale for the application. | ||
| /// | ||
| /// If the given locale is `None` or unsupported, the system locale is tried. If the system locale | ||
| /// is not supported, the fallback locale is used. | ||
| /// | ||
| /// In both cases, the language part of the locale is used if the full locale is not supported. | ||
| pub fn set_locale(locale: Option<&str>) { | ||
| if let Some(locale) = locale { | ||
| set_locale_inner(locale); | ||
| } else if let Some(locale) = sys_locale::get_locale().as_ref() { | ||
| set_locale_inner(locale); | ||
| // SAFETY: locale should be a very short string (`"zh"`, `"en-GB"`), that even if leaked does not matter in memory | ||
| // usage, and this function should only be called once per run. | ||
| let new_locale = if let Some(locale) = locale { | ||
| locale.to_string().leak() | ||
| } else if let Some(locale) = sys_locale::get_locale() { | ||
| locale.leak() | ||
| } else { | ||
| set_locale_inner(FALLBACK_LOCALE); | ||
| } | ||
| FALLBACK_LOCALE | ||
| }; | ||
| *CURRENT_LOCALE | ||
| .get_or_init(|| RwLock::new(FALLBACK_LOCALE)) | ||
| .write() | ||
| .unwrap() = new_locale; | ||
| } | ||
|
|
||
| /// Get the current locale. | ||
| pub fn locale() -> String { | ||
| rust_i18n::locale().to_string() | ||
| } | ||
|
|
||
| /// Get all available locales. | ||
| pub fn available_locales() -> Vec<&'static str> { | ||
| rust_i18n::available_locales!() | ||
| let mut locales: Vec<_> = STRINGS.get("trippy").unwrap().keys().copied().collect(); | ||
| locales.sort_unstable(); | ||
| locales | ||
| } | ||
|
|
||
| fn set_locale_inner(locale: &str) { | ||
| let all_locales = rust_i18n::available_locales!(); | ||
| if all_locales.contains(&locale) { | ||
| rust_i18n::set_locale(locale); | ||
| } else { | ||
| let language = split_locale(locale); | ||
| if all_locales.contains(&language.as_str()) { | ||
| rust_i18n::set_locale(&language); | ||
| } else { | ||
| rust_i18n::set_locale(FALLBACK_LOCALE); | ||
| } | ||
| /// Like [`set_locale`], the language part of current locale is used if the full locale is not supported. | ||
| pub fn get_string(key: &str) -> &str { | ||
| let kt = STRINGS.get(key).unwrap(); | ||
| let locale = locale(); | ||
| if let Some(v) = kt.get(locale) { | ||
| v | ||
| } else if let Some(v) = kt.get(&locale[..2]) { | ||
| v | ||
| } else { | ||
| kt.get(FALLBACK_LOCALE).unwrap() | ||
| } | ||
| } | ||
|
|
||
| fn split_locale(locale: &str) -> String { | ||
| let mut parts = locale.split(['-', '_']); | ||
| parts | ||
| .next() | ||
| .map_or_else(|| FALLBACK_LOCALE, |lang| lang) | ||
| .to_string() | ||
| } | ||
|
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||
| // A macro for translating a text string. | ||
| #[macro_export] | ||
| macro_rules! t { | ||
| ($($all:tt)*) => { | ||
| rust_i18n::t!($($all)*) | ||
| } | ||
| ($key:expr) => { | ||
| std::borrow::Cow::Borrowed($crate::locale::get_string($key)) | ||
| }; | ||
| ($key:expr, $($kt:ident = $kv:expr),+) => { | ||
| { | ||
| let string = t!($key); | ||
| $( | ||
| let string = string.replace(concat!("%{", stringify!($kt), "}"), &$kv.to_string()); | ||
| )+ | ||
| string | ||
| } | ||
| }; | ||
| ($key:expr, $($kt:literal => $kv:expr),+) => { | ||
| { | ||
| let string = t!($key); | ||
| $( | ||
| let string = string.replace(concat!("%{", $kt, "}"), &$kv.to_string()); | ||
| )+ | ||
| string | ||
| } | ||
| }; | ||
| } | ||
|
|
||
| #[cfg(test)] | ||
| mod tests { | ||
| use super::*; | ||
|
|
||
| #[test] | ||
| fn test_split_locale_dash() { | ||
| let language = split_locale("en-US"); | ||
| assert_eq!(language, "en"); | ||
| } | ||
|
|
||
| #[test] | ||
| fn test_split_locale_underscore() { | ||
| let language = split_locale("en_US"); | ||
| assert_eq!(language, "en"); | ||
| } | ||
|
|
||
| #[test] | ||
| fn test_split_locale_no_region() { | ||
| let language = split_locale("en"); | ||
| assert_eq!(language, "en"); | ||
| } | ||
| } | ||
| include!(concat!(env!("OUT_DIR"), "/locale_strings.rs")); |
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