fractal/src/i18n.rs

71 lines
2.1 KiB
Rust

use gettextrs::{gettext, ngettext};
fn freplace(s: String, args: &[(&str, &str)]) -> String {
let mut s = s;
for (k, v) in args {
s = s.replace(&format!("{{{}}}", k), v);
}
s
}
/// Like `gettext`, but replaces named variables with the given dictionary.
///
/// The expected format to replace is `{name}`, where `name` is the first string
/// in the dictionary entry tuple.
pub fn gettext_f(msgid: &str, args: &[(&str, &str)]) -> String {
let s = gettext(msgid);
freplace(s, args)
}
/// Like `ngettext`, but replaces named variables with the given dictionary.
///
/// The expected format to replace is `{name}`, where `name` is the first string
/// in the dictionary entry tuple.
pub fn ngettext_f(msgid: &str, msgid_plural: &str, n: u32, args: &[(&str, &str)]) -> String {
let s = ngettext(msgid, msgid_plural, n);
freplace(s, args)
}
#[cfg(test)]
mod tests {
use super::*;
#[test]
fn test_gettext_f() {
let out = gettext_f("{one} param", &[("one", "one")]);
assert_eq!(out, "one param");
let out = gettext_f("middle {one} param", &[("one", "one")]);
assert_eq!(out, "middle one param");
let out = gettext_f("end {one}", &[("one", "one")]);
assert_eq!(out, "end one");
let out = gettext_f("multiple {one} and {two}", &[("one", "1"), ("two", "two")]);
assert_eq!(out, "multiple 1 and two");
let out = gettext_f("multiple {two} and {one}", &[("one", "1"), ("two", "two")]);
assert_eq!(out, "multiple two and 1");
let out = gettext_f("multiple {one} and {one}", &[("one", "1"), ("two", "two")]);
assert_eq!(out, "multiple 1 and 1");
let out = ngettext_f(
"singular {one} and {two}",
"plural {one} and {two}",
1,
&[("one", "1"), ("two", "two")],
);
assert_eq!(out, "singular 1 and two");
let out = ngettext_f(
"singular {one} and {two}",
"plural {one} and {two}",
2,
&[("one", "1"), ("two", "two")],
);
assert_eq!(out, "plural 1 and two");
}
}