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use anyhow::{anyhow, Result};
use std::{
collections::HashMap,
fs::read_to_string,
ops::Index,
path::Path,
sync::{LazyLock, Mutex},
};
pub struct Strings(HashMap<String, String>);
impl Index<&'static str> for Strings {
type Output = str;
fn index(&self, index: &'static str) -> &Self::Output {
self.0.get(index).map(|s| s.as_str()).unwrap_or(index)
}
}
impl Strings {
pub fn load(path: &Path) -> Result<Self> {
Ok(Self(
read_to_string(path)?
.lines()
.skip(1)
.map(|l| {
let (k, v) = l.split_once("=").ok_or(anyhow!("'=' missing"))?;
Ok::<_, anyhow::Error>((
k.trim_end().to_owned(),
v.trim_start().replace("%n", "\n"),
))
})
.try_collect()?,
))
}
}
static TR_LOAD: Mutex<Option<Strings>> = Mutex::new(None);
static TR: LazyLock<Strings> = LazyLock::new(|| TR_LOAD.lock().unwrap().take().unwrap());
pub fn tr<'a>(s: &'static str) -> &'a str {
&TR[s]
}
pub fn set_language(lang: &str) {
*TR_LOAD.lock().unwrap() =
Some(Strings::load(Path::new(&format!("locale/{lang}.ini"))).unwrap());
}
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