cessen/furigana_gen
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Fix bug that could swap kana/kanji when generating furigana.

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This commit is contained in:
Nathan Vegdahl 2025-12-29 10:53:46 +09:00
parent f5198a1392
commit 2a8a1868c1
1 changed files with 13 additions and 8 deletions
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21
src/lib.rs
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@ -423,6 +423,7 @@ fn apply_furigana<'a>(
let mut kana = kana;
// Trim any kana from the start.
let start_kana;
{
let mut start_s = 0;
let mut start_k = 0;
@ -434,12 +435,13 @@ fn apply_furigana<'a>(
break;
}
}
out.push((surface[..start_s].into(), "".into()));
start_kana = &surface[..start_s];
surface = &surface[start_s..];
kana = &kana[start_k..];
}
// Trim any kana from the end.
let end_kana;
{
let mut end_s = surface.len();
let mut end_k = kana.len();
@ -451,7 +453,7 @@ fn apply_furigana<'a>(
break;
}
}
out.push((surface[end_s..].into(), "".into()));
end_kana = &surface[end_s..];
surface = &surface[..end_s];
kana = &kana[..end_k];
}
@ -476,17 +478,20 @@ fn apply_furigana<'a>(
.unwrap();
// Insert the segments.
out.insert(out.len() - 2, (surface[..si].into(), kana[..ki].into()));
out.insert(
out.len() - 2,
(surface[si..(si + sc.len_utf8())].into(), "".into()),
);
out.push((surface[..si].into(), kana[..ki].into()));
out.push((surface[si..(si + sc.len_utf8())].into(), "".into()));
surface = &surface[(si + sc.len_utf8())..];
kana = &kana[(ki + kc.len_utf8())..];
}
// Left over.
out.insert(out.len() - 1, (surface.into(), kana.into()));
out.push((surface.into(), kana.into()));
// Put back the start/end kana.
out.insert(0, (start_kana.into(), "".into()));
out.push((end_kana.into(), "".into()));
// Clear out empty elements.
out.retain(|(s, _)| !s.is_empty());
// Attach pitch accent indicator if there is one and it's unambiguous.