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// Test stack layouts.
---
// Test stacks with different directions.
#let widths = (
30pt, 20pt, 40pt, 15pt,
30pt, 50%, 20pt, 100%,
)
#let shaded = {
let v = 0%
let next() = { v += 10%; rgb(v, v, v) }
w => rect(width: w, height: 10pt, fill: next())
}
#let items = for w in widths { (align(right, shaded(w)),) }
#set page(width: 50pt, margins: 0pt)
#stack(dir: btt, ..items)
---
// Test RTL alignment.
#set page(width: 50pt, margins: 5pt)
#set text(8pt)
#stack(dir: rtl,
align(center, [A]),
align(left, [B]),
[C],
)
---
// Test spacing.
#set page(width: 50pt, margins: 0pt)
#set par(spacing: 5pt)
#let x = square(size: 10pt, fill: eastern)
#stack(dir: rtl, spacing: 5pt, x, x, x)
#stack(dir: ltr, x, 20%, x, 20%, x)
#stack(dir: ltr, spacing: 5pt, x, x, 7pt, 3pt, x)
---
// Test overflow.
#set page(width: 50pt, height: 30pt, margins: 0pt)
#box(stack(
rect(width: 40pt, height: 20pt, fill: conifer),
rect(width: 30pt, height: 13pt, fill: forest),
))
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