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+--- grid-stroke-pattern ---
+#let double-line = pattern(size: (1.5pt, 1.5pt), {
+  place(line(stroke: .6pt, start: (0%, 50%), end: (100%, 50%)))
+})
+
+#table(
+  stroke: (_, y) => if y != 1 { (bottom: black) },
+  columns: 3,
+  table.cell(colspan: 3, align: center)[*Epic Table*],
+  align(center)[*Name*], align(center)[*Age*], align(center)[*Data*],
+  table.hline(stroke: (paint: double-line, thickness: 2pt)),
+  [John], [30], [None],
+  [Martha], [20], [A],
+  [Joseph], [35], [D]
+)
+
+--- grid-stroke-folding ---
+// Test folding
+#set grid(stroke: red)
+#set grid(stroke: 5pt)
+
+#grid(
+  inset: 10pt,
+  columns: 2,
+  stroke: stroke(dash: "loosely-dotted"),
+  grid.vline(start: 2, end: 3, stroke: (paint: green, dash: none)),
+  [a], [b],
+  grid.hline(end: 1, stroke: blue),
+  [c], [d],
+  [e], grid.cell(stroke: aqua)[f]
+)
+
+--- grid-stroke-set-on-cell-and-line ---
+// Test set rules on cells and folding
+#set table.cell(stroke: 4pt)
+#set table.cell(stroke: blue)
+#set table.hline(stroke: red)
+#set table.hline(stroke: 0.75pt)
+#set table.vline(stroke: 0.75pt)
+#set table.vline(stroke: aqua)
+
+#table(
+  columns: 3,
+  gutter: 3pt,
+  inset: 5pt,
+  [a], [b], table.vline(position: end), [c],
+  [d], [e], [f],
+  table.hline(position: bottom),
+  [g], [h], [i],
+)
+
+--- grid-stroke-field-in-show ---
+// Test stroke field on cell show rules
+#set grid.cell(stroke: (x: 4pt))
+#set grid.cell(stroke: (x: blue))
+#show grid.cell: it => {
+  test(it.stroke, (left: stroke(paint: blue, thickness: 4pt, dash: "loosely-dotted"), right: blue + 4pt, top: stroke(thickness: 1pt), bottom: none))
+  it
+}
+#grid(
+  stroke: (left: (dash: "loosely-dotted")),
+  inset: 5pt,
+  grid.hline(stroke: red),
+  grid.cell(stroke: (top: 1pt))[a], grid.vline(stroke: yellow),
+)
+
+--- grid-stroke-complex ---
+#table(
+  columns: 3,
+  [a], table.cell(colspan: 2)[b c],
+  table.cell(stroke: blue)[d], [e], [f],
+  [g], [h], table.cell(stroke: (left: yellow, top: green, right: aqua, bottom: red))[i],
+  [j], [k], [l],
+  table.cell(stroke: 3pt)[m], [n], table.cell(stroke: (dash: "loosely-dotted"))[o],
+)
+
+--- grid-stroke-array ---
+// Test per-column stroke array
+#let t = table(
+  columns: 3,
+  stroke: (red, blue, green),
+  [a], [b], [c],
+  [d], [e], [f],
+  [h], [i], [j],
+)
+#t
+#set text(dir: rtl)
+#t
+
+--- grid-stroke-func ---
+#grid(
+  columns: 3,
+  inset: 3pt,
+  stroke: (x, _) => (right: (5pt, (dash: "dotted")).at(calc.rem(x, 2)), bottom: (dash: "densely-dotted")),
+  grid.vline(x: 0, stroke: red),
+  grid.vline(x: 1, stroke: red),
+  grid.vline(x: 2, stroke: red),
+  grid.vline(x: 3, stroke: red),
+  grid.hline(y: 0, end: 1, stroke: blue),
+  grid.hline(y: 1, end: 1, stroke: blue),
+  grid.cell[a],
+  [b], [c]
+)
+
+--- grid-stroke-manually-positioned-lines ---
+#set page(height: 5em)
+#table(
+  columns: 3,
+  inset: 3pt,
+  table.hline(y: 0, end: none, stroke: 3pt + blue),
+  table.vline(x: 0, end: none, stroke: 3pt + green),
+  table.hline(y: 5, end: none, stroke: 3pt + red),
+  table.vline(x: 3, end: none, stroke: 3pt + yellow),
+  [a], [b], [c],
+  [a], [b], [c],
+  [a], [b], [c],
+  [a], [b], [c],
+  [a], [b], [c],
+)
+
+--- grid-stroke-automatically-positioned-lines ---
+// Automatically positioned lines
+// Plus stroke thickness ordering
+#table(
+  columns: 3,
+  table.hline(stroke: red + 5pt),
+  table.vline(stroke: blue + 5pt),
+  table.vline(stroke: 2pt),
+  [a],
+  table.vline(x: 1, stroke: aqua + 5pt),
+  [b],
+  table.vline(stroke: aqua + 5pt),
+  [c],
+  table.vline(stroke: yellow + 5.2pt),
+  table.hline(stroke: green + 5pt),
+  [a], [b], [c],
+  [a], table.hline(stroke: green + 2pt), table.vline(stroke: 2pt), [b], [c],
+)
+
+--- grid-stroke-priority-line ---
+// Line specification order priority
+// The last line should be blue, not red.
+// The middle aqua line should be gone due to the 'none' override.
+#grid(
+  columns: 2,
+  inset: 2pt,
+  grid.hline(y: 2, stroke: red + 5pt),
+  grid.vline(),
+  [a], [b],
+  grid.hline(stroke: red),
+  grid.hline(stroke: none),
+  [c], grid.cell(stroke: (top: aqua))[d],
+  grid.hline(stroke: blue),
+)
+
+--- grid-stroke-hline-position-bottom-gutter ---
+// Position: bottom and position: end with gutter should have a visible effect
+// of moving the lines after the next track.
+#table(
+  columns: 3,
+  gutter: 3pt,
+  stroke: blue,
+  table.hline(end: 2, stroke: red),
+  table.hline(end: 2, stroke: aqua, position: bottom),
+  table.vline(end: 2, stroke: green), [a], table.vline(end: 2, stroke: green), table.vline(end: 2, position: end, stroke: orange), [b], table.vline(end: 2, stroke: aqua, position: end), table.vline(end: 2, stroke: green), [c], table.vline(end: 2, stroke: green),
+  [d], [e], [f],
+  table.hline(end: 2, stroke: red),
+  [g], [h], [ie],
+  table.hline(end: 2, stroke: green),
+)
+
+--- grid-stroke-hline-position-bottom ---
+// Using position: bottom and position: end without gutter should be the same
+// as placing a line after the next track.
+#table(
+  columns: 3,
+  stroke: blue,
+  table.hline(end: 2, stroke: red),
+  table.hline(end: 2, stroke: aqua, position: bottom),
+  table.vline(end: 2, stroke: green), [a], table.vline(end: 2, stroke: green), [b], table.vline(end: 2, stroke: aqua, position: end), table.vline(end: 2, stroke: green), [c], table.vline(end: 2, stroke: green),
+  table.hline(end: 2, stroke: 5pt),
+  [d], [e], [f],
+  table.hline(end: 2, stroke: red),
+  [g], [h], [i],
+  table.hline(end: 2, stroke: red),
+)
+
+--- grid-stroke-vline-position-left-and-right ---
+// Test left and right for grid vlines.
+#grid(
+  columns: 3,
+  inset: 5pt,
+  grid.vline(stroke: green, position: left), grid.vline(stroke: red, position: right), [a],
+  grid.vline(stroke: 2pt, position: left), grid.vline(stroke: red, position: right), [b],
+  grid.vline(stroke: 2pt, position: left), grid.vline(stroke: red, position: right), [c],
+  grid.vline(stroke: 2pt, position: left)
+)
+
+#grid(
+  columns: 3,
+  inset: 5pt,
+  gutter: 3pt,
+  grid.vline(stroke: green, position: left), grid.vline(stroke: red, position: right), [a],
+  grid.vline(stroke: blue, position: left), grid.vline(stroke: red, position: right), [b],
+  grid.vline(stroke: blue, position: left), grid.vline(stroke: red, position: right), [c],
+  grid.vline(stroke: 2pt, position: left)
+)
+
+--- table-stroke-vline-position-left-and-right ---
+// Test left and right for table vlines.
+#table(
+  columns: 3,
+  inset: 5pt,
+  table.vline(stroke: green, position: left), table.vline(stroke: red, position: right), [a],
+  table.vline(stroke: 2pt, position: left), table.vline(stroke: red, position: right), [b],
+  table.vline(stroke: 2pt, position: left), table.vline(stroke: red, position: right), [c],
+  table.vline(stroke: 2pt, position: left)
+)
+
+#table(
+  columns: 3,
+  inset: 5pt,
+  gutter: 3pt,
+  table.vline(stroke: green, position: left), table.vline(stroke: red, position: right), [a],
+  table.vline(stroke: blue, position: left), table.vline(stroke: red, position: right), [b],
+  table.vline(stroke: blue, position: left), table.vline(stroke: red, position: right), [c],
+  table.vline(stroke: 2pt, position: left)
+)
+
+--- grid-stroke-priority-line-cell ---
+// Hlines and vlines should always appear on top of cell strokes.
+#table(
+  columns: 3,
+  stroke: aqua,
+  table.vline(stroke: red, position: end), [a], table.vline(stroke: red), [b], [c],
+  table.cell(stroke: blue)[d], [e], [f],
+  table.hline(stroke: red),
+  [g], table.cell(stroke: blue)[h], [i],
+)
+
+#table(
+  columns: 3,
+  gutter: 3pt,
+  stroke: aqua,
+  table.vline(stroke: red, position: end), [a], table.vline(stroke: red), [b], [c],
+  table.cell(stroke: blue)[d], [e], [f],
+  table.hline(stroke: red),
+  [g], table.cell(stroke: blue)[h], [i],
+)
+
+--- grid-stroke-priority-cell ---
+// Ensure cell stroke overrides always appear on top.
+#table(
+  columns: 2,
+  stroke: black,
+  table.cell(stroke: red)[a], [b],
+  [c], [d],
+)
+
+#table(
+  columns: 2,
+  table.cell(stroke: red)[a], [b],
+  [c], [d],
+)
+
+--- grid-stroke-hline-position-bad ---
+// Error: 7:3-7:32 cannot place horizontal line at the 'bottom' position of the bottom border (y = 2)
+// Hint: 7:3-7:32 set the line's position to 'top' or place it at a smaller 'y' index
+#table(
+  columns: 2,
+  [a], [b],
+  [c], [d],
+  table.hline(stroke: aqua),
+  table.hline(position: top),
+  table.hline(position: bottom)
+)
+
+--- grid-stroke-border-partial ---
+// Test partial border line overrides
+#set page(width: auto, height: 7em, margin: (bottom: 1em))
+#table(
+  columns: 4,
+  stroke: (x, y) => if y == 0 or y == 4 { orange } else { aqua },
+  table.hline(stroke: blue, start: 1, end: 2), table.cell(stroke: red, v(3em)), table.cell(stroke: blue)[b], table.cell(stroke: green)[c], [M],
+  [a], [b], [c], [M],
+  [d], [e], [f], [M],
+  [g], [h], [i], [M],
+  table.cell(stroke: red)[a], table.cell(stroke: blue)[b], table.cell(stroke: green)[c], [M],
+  table.hline(stroke: blue, start: 1, end: 2),
+)
+
+--- grid-stroke-vline-colspan ---
+// - Vline should be placed after the colspan.
+// - Hline should be placed under the full-width rowspan.
+#table(
+  columns: 3,
+  rows: 1.25em,
+  inset: 1pt,
+  stroke: none,
+  table.cell(colspan: 2)[a], table.vline(stroke: red), table.hline(stroke: blue), [b],
+  [c], [d], [e],
+  table.cell(colspan: 3, rowspan: 2)[a], table.vline(stroke: blue), table.hline(stroke: red)
+)
+
+--- grid-stroke-hline-rowspan ---
+// Red line should be above [c] (hline skips the shortest rowspan).
+#set text(6pt)
+#table(
+  rows: 1em,
+  columns: 2,
+  inset: 1.5pt,
+  table.cell(rowspan: 3)[a], table.cell(rowspan: 2)[b],
+  table.hline(stroke: red),
+  [c]
+)
+
+--- grid-stroke-hline-position-bottom-out-of-bounds ---
+// Error: 8:3-8:32 cannot place horizontal line at the 'bottom' position of the bottom border (y = 2)
+// Hint: 8:3-8:32 set the line's position to 'top' or place it at a smaller 'y' index
+#table(
+  columns: 2,
+  gutter: 3pt,
+  [a], [b],
+  [c], [d], table.vline(stroke: red),
+  table.hline(stroke: aqua),
+  table.hline(position: top),
+  table.hline(position: bottom)
+)
+
+--- grid-stroke-vline-position-bottom-out-of-bounds ---
+// Error: 6:3-6:28 cannot place vertical line at the 'end' position of the end border (x = 2)
+// Hint: 6:3-6:28 set the line's position to 'start' or place it at a smaller 'x' index
+#grid(
+  columns: 2,
+  [a], [b],
+  grid.vline(stroke: aqua),
+  grid.vline(position: start),
+  grid.vline(position: end)
+)
+
+--- grid-stroke-vline-position-bottom-out-of-bounds-gutter ---
+// Error: 7:3-7:28 cannot place vertical line at the 'end' position of the end border (x = 2)
+// Hint: 7:3-7:28 set the line's position to 'start' or place it at a smaller 'x' index
+#grid(
+  columns: 2,
+  gutter: 3pt,
+  [a], [b],
+  grid.vline(stroke: aqua),
+  grid.vline(position: start),
+  grid.vline(position: end)
+)
+
+--- grid-stroke-hline-out-of-bounds ---
+// Error: 4:3-4:19 cannot place horizontal line at invalid row 3
+#grid(
+  [a],
+  [b],
+  grid.hline(y: 3)
+)
+
+--- grid-stroke-hline-out-of-bounds-gutter ---
+// Error: 5:3-5:19 cannot place horizontal line at invalid row 3
+#grid(
+  gutter: 3pt,
+  [a],
+  [b],
+  grid.hline(y: 3)
+)
+
+--- grid-stroke-vline-out-of-bounds ---
+// Error: 4:3-4:20 cannot place vertical line at invalid column 3
+#table(
+  columns: 2,
+  [a], [b],
+  table.vline(x: 3)
+)
+
+--- grid-stroke-vline-out-of-bounds-gutter ---
+// Error: 5:3-5:20 cannot place vertical line at invalid column 3
+#table(
+  columns: 2,
+  gutter: 3pt,
+  [a], [b],
+  table.vline(x: 3)
+)
+
+--- table-hline-in-grid ---
+// Error: 7-20 cannot use `table.hline` as a grid line; use `grid.hline` instead
+#grid(table.hline())
+
+--- table-vline-in-grid ---
+// Error: 7-20 cannot use `table.vline` as a grid line; use `grid.vline` instead
+#grid(table.vline())
+
+--- grid-hline-in-table ---
+// Error: 8-20 cannot use `grid.hline` as a table line; use `table.hline` instead
+#table(grid.hline())
+
+--- grid-vline-in-table ---
+// Error: 8-20 cannot use `grid.vline` as a table line; use `table.vline` instead
+#table(grid.vline())
+
+--- grid-hline-end-before-start-1 ---
+// Error: 3:3-3:31 line cannot end before it starts
+#grid(
+  columns: 3,
+  grid.hline(start: 2, end: 1),
+  [a], [b], [c],
+)
+
+--- grid-hline-end-before-start-2 ---
+// Error: 3:3-3:32 line cannot end before it starts
+#table(
+  columns: 3,
+  table.vline(start: 2, end: 1),
+  [a], [b], [c],
+  [d], [e], [f],
+  [g], [h], [i],
+)
+
+--- grid-hline-position-horizon ---
+// Error: 24-31 expected `top` or `bottom`, found horizon
+#table.hline(position: horizon)
+
+--- grid-vline-position-center ---
+// Error: 24-30 expected `start`, `left`, `right`, or `end`, found center
+#table.vline(position: center)
+
+--- grid-hline-position-right ---
+// Error: 24-29 expected `top` or `bottom`, found right
+#table.hline(position: right)
+
+--- grid-vline-position-top ---
+// Error: 24-27 expected `start`, `left`, `right`, or `end`, found top
+#table.vline(position: top)