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fix(dgn): a short 2D text element no longer panics the reader

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The byte count at 110 was read with direct indexing; a truncated element
now skips like every other field read does.

Co-Authored-By: Claude Opus 5.5 <[email protected]>
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Hakan SevenandClaude Opus 5.5 committed 2026-09-29 23:11:33 +03:00
1 parent 232ce26105
commit 8022e25c08
1 file changed
+1 -1
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src/scene/model/underlay_vector/dgn8.rs
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@@ -477,7 +477,7 @@ fn read_run(run: &[&[u8]], styles: &Styles, xf: &Xf) -> Raw {
(|| Some((f64_at(e, 112)?, f64_at(e, 120)?, quat_axes(e, 144)?, p3(176)?, marked_string(e, 200)?)))()
} else {
(|| {
let count = u16::from_le_bytes([e[110], e[111]]) as usize;
let count = u16::from_le_bytes(e.get(110..112)?.try_into().ok()?) as usize;
let chars = e.get(174..170 + count.max(4))?;
let text = String::from_utf8_lossy(chars).trim_end_matches(char::from(0)).to_string();
Some((f64_at(e, 112)?, f64_at(e, 120)?, turned_axes(f64_at(e, 144)?), p3(152)?, text))