Fix equations in RTL text (#4150)

9 files changed, 25 insertions, 0 deletions

diff --git a/tests/ref/issue-3696-equation-rtl.png b/tests/ref/issue-3696-equation-rtl.png
new file mode 100644
index 00000000..1ebf2dc2
--- /dev/null
+++ b/tests/ref/issue-3696-equation-rtl.png
diff --git a/tests/ref/math-at-line-end.png b/tests/ref/math-at-line-end.png
new file mode 100644
index 00000000..6e4173a7
--- /dev/null
+++ b/tests/ref/math-at-line-end.png
diff --git a/tests/ref/math-at-line-start.png b/tests/ref/math-at-line-start.png
new file mode 100644
index 00000000..05221db1
--- /dev/null
+++ b/tests/ref/math-at-line-start.png
diff --git a/tests/ref/math-at-par-end.png b/tests/ref/math-at-par-end.png
new file mode 100644
index 00000000..dd3393fa
--- /dev/null
+++ b/tests/ref/math-at-par-end.png
diff --git a/tests/ref/math-at-par-start.png b/tests/ref/math-at-par-start.png
new file mode 100644
index 00000000..d69b214a
--- /dev/null
+++ b/tests/ref/math-at-par-start.png
diff --git a/tests/ref/math-consecutive.png b/tests/ref/math-consecutive.png
new file mode 100644
index 00000000..63209657
--- /dev/null
+++ b/tests/ref/math-consecutive.png
diff --git a/tests/ref/math-linebreaking-empty.png b/tests/ref/math-linebreaking-empty.png
index 8fd4dbb9..2b0917a6 100644
--- a/tests/ref/math-linebreaking-empty.png
+++ b/tests/ref/math-linebreaking-empty.png
diff --git a/tests/suite/math/equation.typ b/tests/suite/math/equation.typ
index d5771f95..d4fba36b 100644
--- a/tests/suite/math/equation.typ
+++ b/tests/suite/math/equation.typ
@@ -224,3 +224,8 @@ $ <quadratic>
 // Error: 14-24 cannot reference equation without numbering
 // Hint: 14-24 you can enable equation numbering with `#set math.equation(numbering: "1.")`
 Looks at the @quadratic formula.
+
+--- issue-3696-equation-rtl ---
+#set page(width: 150pt)
+#set text(lang: "he")
+תהא סדרה $a_n$: $[a_n: 1, 1/2, 1/3, dots]$
diff --git a/tests/suite/math/interactions.typ b/tests/suite/math/interactions.typ
index 03d5a6e7..9a9b13ec 100644
--- a/tests/suite/math/interactions.typ
+++ b/tests/suite/math/interactions.typ
@@ -35,6 +35,26 @@ $#here[f] := #here[Hi there]$.
 // Test boxes with a baseline are respected
 #box(stroke: 0.2pt, $a #box(baseline:0.5em, stroke: 0.2pt, $a$)$)
 
+--- math-at-par-start ---
+// Test that equation at start of paragraph works fine.
+$x$ is a variable.
+
+--- math-at-par-end ---
+// Test that equation at end of paragraph works fine.
+One number is $1$
+
+--- math-at-line-start ---
+// Test math at the natural end of a line.
+#h(60pt) Number $1$ exists.
+
+--- math-at-line-end ---
+// Test math at the natural end of a line.
+#h(50pt) Number $1$ exists.
+
+--- math-consecutive ---
+// Test immediately consecutive equations.
+$x$$y$
+
 --- issue-2821-missing-fields ---
 // Issue #2821: Setting a figure's supplement to none removes the field
 #show figure.caption: it => {