From ec11554c099c8f819f668af33d6e8f9e4b6e31ae Mon Sep 17 00:00:00 2001
From: Brian Hung <brianhung@berkeley.edu>
Date: Tue, 8 Jun 2021 18:47:04 -0700
Subject: [PATCH] Exclude superscript from subscript, and vice versa.

---
 packages/extension-subscript/src/subscript.ts     | 2 ++
 packages/extension-superscript/src/superscript.ts | 2 ++
 2 files changed, 4 insertions(+)

diff --git a/packages/extension-subscript/src/subscript.ts b/packages/extension-subscript/src/subscript.ts
index 06636207..09d4e6cd 100644
--- a/packages/extension-subscript/src/subscript.ts
+++ b/packages/extension-subscript/src/subscript.ts
@@ -30,6 +30,8 @@ export const Subscript = Mark.create<SubscriptExtensionOptions>({
     HTMLAttributes: {},
   },
 
+  excludes: 'superscript',
+
   parseHTML() {
     return [
       {
diff --git a/packages/extension-superscript/src/superscript.ts b/packages/extension-superscript/src/superscript.ts
index 26a348aa..adf6a930 100644
--- a/packages/extension-superscript/src/superscript.ts
+++ b/packages/extension-superscript/src/superscript.ts
@@ -30,6 +30,8 @@ export const Superscript = Mark.create<SuperscriptExtensionOptions>({
     HTMLAttributes: {},
   },
 
+  excludes: 'subscript',
+
   parseHTML() {
     return [
       {