fix: fixed arnog#1981

mgreminger · May 23, 2023 · 56cec2b · 56cec2b
1 parent 227ac24
commit 56cec2b
Showing 1 changed file with 6 additions and 1 deletion.
diff --git a/src/editor-mathfield/keyboard-input.ts b/src/editor-mathfield/keyboard-input.ts
@@ -652,7 +652,12 @@ function insertMathModeChar(
   if (mathfield.adoptStyle !== 'none') {
     // If adding an alphabetic character, and the neighboring atom is an
     // alphanumeric character, use the same variant/variantStyle (\mathit, \mathrm...)
-    const sibling = mathfield.adoptStyle === 'left' ? atom : atom.rightSibling;
+    const sibling =
+      mathfield.adoptStyle === 'left'
+        ? atom
+        : atom.parent
+        ? atom.rightSibling
+        : null;
     if (
       sibling?.type === 'mord' &&
       /[a-zA-Z0-9]/.test(sibling.value) &&