Add Devanagari numbering (#4850)

crates/typst/src/model/numbering.rs

@@ -297,6 +297,8 @@ pub enum NumberingKind {
     EasternArabic,
     /// The variant of Eastern Arabic numerals used in Persian and Urdu.
     EasternArabicPersian,
+    /// Devanagari numerals.
+    DevanagariNumber,
     /// Circled numbers (①, ②, ③, etc.), up to 50.
     CircledNumber,
     /// Double-circled numbers (⓵, ⓶, ⓷, etc.), up to 10.
@@ -321,6 +323,7 @@ impl NumberingKind {
             '가' => NumberingKind::KoreanSyllable,
             '\u{0661}' => NumberingKind::EasternArabic,
             '\u{06F1}' => NumberingKind::EasternArabicPersian,
+            '\u{0967}' => NumberingKind::DevanagariNumber,
             '①' => NumberingKind::CircledNumber,
             '⓵' => NumberingKind::DoubleCircledNumber,
             _ => return None,
@@ -345,6 +348,7 @@ impl NumberingKind {
             Self::KoreanSyllable => '가',
             Self::EasternArabic => '\u{0661}',
             Self::EasternArabicPersian => '\u{06F1}',
+            Self::DevanagariNumber => '\u{0967}',
             Self::CircledNumber => '①',
             Self::DoubleCircledNumber => '⓵',
         }
@@ -556,6 +560,7 @@ impl NumberingKind {
             ),
             Self::EasternArabic => decimal('\u{0660}', n),
             Self::EasternArabicPersian => decimal('\u{06F0}', n),
+            Self::DevanagariNumber => decimal('\u{0966}', n),
             Self::CircledNumber => zeroless::<50>(
                 |x| {
                     [

tests/suite/model/numbering.typ

@@ -102,6 +102,11 @@
 #assert.eq(numbering("\u{0661}", 1475), "١٤٧٥")
 #assert.eq(numbering("\u{06F1}", 1475), "۱۴۷۵")
 
+--- numbering-devanagari-number ---
+#assert.eq(numbering("\u{0967}", 1), "१")
+#assert.eq(numbering("\u{0967}", 10), "१०")
+#assert.eq(numbering("\u{0967}", 123456789), "१२३४५६७८९")
+
 --- numbering-negative ---
 // Error: 17-19 number must be at least zero
 #numbering("1", -1)
@@ -112,4 +117,4 @@
 
 --- numbering-double-circled-number ---
 #assert.eq(numbering("⓵", 1), "⓵")
-#assert.eq(numbering("⓵", 10), "⓾")
+#assert.eq(numbering("⓵", 10), "⓾")