magi/
lang.rs

1//! One reading of `[graph] language`, shared by everything that has a
2//! translated wording table.
3//!
4//! Only English and Japanese are translated. The setting has always accepted
5//! a code or a name, so the Japanese spellings are matched loosely; anything
6//! else falls back to English rather than shipping a guess.
7
8/// Is this the default, where nothing needs saying? Empty, `en` or `english`.
9pub fn is_english(language: &str) -> bool {
10    let l = language.trim();
11    l.is_empty() || l.eq_ignore_ascii_case("en") || l.eq_ignore_ascii_case("english")
12}
13
14/// Whether `language` names Japanese: `ja`, `jp`, `japanese` or `日本語`,
15/// trimmed and case-insensitive.
16pub fn is_japanese(language: &str) -> bool {
17    let l = language.trim();
18    l.eq_ignore_ascii_case("ja")
19        || l.eq_ignore_ascii_case("jp")
20        || l.eq_ignore_ascii_case("japanese")
21        || l.eq_ignore_ascii_case("日本語")
22}
23
24/// The language an agent is told to write in, by name.
25///
26/// `[graph] language` takes a code or a name, and a code reached the prompt
27/// verbatim: "Write all prose in ja" is an instruction a model can read as
28/// noise, and the questions agents asked came back in English on a repository
29/// configured for Japanese. Naming the language is the whole fix. The same
30/// name is what a CLI's own response-language setting expects.
31pub fn name(language: &str) -> &str {
32    if is_japanese(language) {
33        return "Japanese";
34    }
35    if is_english(language) {
36        return "English";
37    }
38    match language.trim() {
39        "de" => "German",
40        "fr" => "French",
41        "es" => "Spanish",
42        "ko" => "Korean",
43        "zh" => "Chinese",
44        // Anything else is passed through: the setting has always accepted a
45        // language name, and inventing a mapping for one magi cannot verify
46        // would be worse than repeating what the operator wrote.
47        other => other,
48    }
49}
50
51/// `[graph] language` of the repository at `repo`, read best-effort for
52/// callers with no run (and so no config of their own). An unreadable config
53/// is English: a hold reason must still get written.
54pub fn of_repo(repo: &std::path::Path) -> String {
55    crate::config::Config::discover(repo, None)
56        .map(|(c, _)| c.graph.language)
57        .unwrap_or_else(|_| "en".to_owned())
58}
59
60#[cfg(test)]
61mod tests {
62    use super::*;
63
64    #[test]
65    fn every_japanese_spelling_is_accepted() {
66        for l in ["ja", "JA", "jp", "Japanese", " japanese ", "日本語"] {
67            assert!(is_japanese(l), "{l:?}");
68        }
69    }
70
71    #[test]
72    fn everything_else_is_not_japanese() {
73        for l in ["en", "", "de", "fr", "jap"] {
74            assert!(!is_japanese(l), "{l:?}");
75        }
76    }
77}
magi/lang.rs

magi/
lang.rs
