From dbdc8ea069d8b0153895e97b5e7c90f8624b6c09 Mon Sep 17 00:00:00 2001
From: Ian Wrzesinski <wrzian@umich.edu>
Date: Thu, 27 Feb 2025 13:11:00 -0500
Subject: [PATCH] parse multi-char numbers consistently in math

---
 crates/typst-syntax/src/parser.rs               |   1 +
 tests/ref/issue-4828-math-number-multi-char.png | Bin 0 -> 465 bytes
 tests/suite/math/syntax.typ                     |   4 ++++
 3 files changed, 5 insertions(+)
 create mode 100644 tests/ref/issue-4828-math-number-multi-char.png

diff --git a/crates/typst-syntax/src/parser.rs b/crates/typst-syntax/src/parser.rs
index c5d13c8b3..d2b89008f 100644
--- a/crates/typst-syntax/src/parser.rs
+++ b/crates/typst-syntax/src/parser.rs
@@ -272,6 +272,7 @@ fn math_expr_prec(p: &mut Parser, min_prec: usize, stop: SyntaxKind) {
 
         SyntaxKind::Text | SyntaxKind::MathText | SyntaxKind::MathShorthand => {
             continuable = !p.at(SyntaxKind::MathShorthand)
+                && !p.current_text().chars().all(char::is_numeric)
                 && matches!(
                     math_class(p.current_text()),
                     None | Some(MathClass::Alphabetic)
diff --git a/tests/ref/issue-4828-math-number-multi-char.png b/tests/ref/issue-4828-math-number-multi-char.png
new file mode 100644
index 0000000000000000000000000000000000000000..ff0a9bab97de1957f3ea99de261346c14f8ccd9d
GIT binary patch
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literal 0
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diff --git a/tests/suite/math/syntax.typ b/tests/suite/math/syntax.typ
index 7091d908c..32b9c098c 100644
--- a/tests/suite/math/syntax.typ
+++ b/tests/suite/math/syntax.typ
@@ -28,6 +28,10 @@ $ dot \ dots \ ast \ tilde \ star $
 $floor(phi.alt.)$
 $floor(phi.alt. )$
 
+--- issue-4828-math-number-multi-char ---
+// Numbers should parse the same regardless of number of characters.
+$1/2(x)$ vs. $1/10(x)$
+
 --- math-unclosed ---
 // Error: 1-2 unclosed delimiter
 $a