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avoid overflow
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@ -39,7 +39,8 @@ impl Input {
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));
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let (limit, snap) = (self.limit(), self.snap_mut());
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let offset = snap.cursor.saturating_sub(limit / 2).min(snap.len().saturating_sub(limit - 1));
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let offset =
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snap.cursor.saturating_sub(limit / 2).min(snap.len().saturating_sub(limit.saturating_sub(1)));
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if snap.offset != offset {
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snap.offset = offset;
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} else {
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