Merge remote-tracking branch 'origin/main' into fix2708

# Conflicts:
#	crates/io/src/tests.rs

crates/io/src/dxf_read/entities.rs

@@ -299,7 +299,9 @@ pub(super) fn acad_table(tags: &[Tag], table_cells_left: &mut usize) -> Table {
     // Large declared sizes must be backed by cell records (no allocation from a bare count).
     let n_cells = tail.iter().filter(|x| x.code == 171).count();
     let declared = rows.saturating_mul(cols);
-    if declared > MAX_CELLS || (declared > 10_000 && n_cells < declared) {
+    // A table with no rows or no columns has no cells: keep neither dimension, so its row heights
+    // and column widths (allocated per dimension, outside the cell budget) are not allocated.
+    if declared == 0 || declared > MAX_CELLS || (declared > 10_000 && n_cells < declared) {
         rows = 0;
         cols = 0;
     }

crates/io/src/tests.rs

@@ -337,6 +337,20 @@ fn entity_transparency_roundtrips_as_group_440() {
     assert_eq!(d.model.iter().map(|e| e.common.transparency).collect::<Vec<_>>(), [Transparency::ByLayer, Transparency::Percent(90)]);
 }
 
+/// A table declaring 10 000 rows and no columns (or the reverse) is read as an empty table.
+#[test]
+fn table_with_an_empty_dimension_allocates_nothing() {
+    for (rows, cols) in [(10_000, 0), (0, 10_000)] {
+        let t = format!("0\nSECTION\n2\nENTITIES\n0\nACAD_TABLE\n100\nAcDbTable\n91\n{rows}\n92\n{cols}\n0\nENDSEC\n0\nEOF\n");
+        let d = read(t.as_bytes(), "t.dxf").unwrap();
+        let tables: Vec<_> = d.model.iter().filter_map(|e| if let EntityKind::Table(t) = &e.kind { Some(t) } else { None }).collect();
+        assert_eq!(tables.len(), 1, "the table is read");
+        for t in tables {
+            assert!(t.row_heights.is_empty() && t.col_widths.is_empty() && t.cells.is_empty());
+        }
+    }
+}
+
 /// Many distinct layer, linetype and style names (in the tables and on entities) read in linear
 /// time, with the duplicate rules kept: first LTYPE wins, last STYLE wins, layers case-insensitive.
 #[test]