From 01547d5b2f8bbe6ee7edaacb18fad81a16ea38db Mon Sep 17 00:00:00 2001
From: bdbch <6538827+bdbch@users.noreply.github.com>
Date: Sat, 30 Nov 2024 08:44:51 +0100
Subject: [PATCH] Fix headline rules ignoring level 1 headlines (#5890)

* Fix input rules not honouring levels settings

* added changeset

---------

Co-authored-by: fridaystreet <paultrappitt@gmail.com>
---
 .changeset/few-geckos-brush.md            | 5 +++++
 packages/extension-heading/src/heading.ts | 2 +-
 2 files changed, 6 insertions(+), 1 deletion(-)
 create mode 100644 .changeset/few-geckos-brush.md

diff --git a/.changeset/few-geckos-brush.md b/.changeset/few-geckos-brush.md
new file mode 100644
index 000000000..d0643beb7
--- /dev/null
+++ b/.changeset/few-geckos-brush.md
@@ -0,0 +1,5 @@
+---
+"@tiptap/extension-heading": patch
+---
+
+Fixed a bug causing the levels rule to be ignored if a level of 1 was **not allowed**
diff --git a/packages/extension-heading/src/heading.ts b/packages/extension-heading/src/heading.ts
index ff417a304..61c88e5a2 100644
--- a/packages/extension-heading/src/heading.ts
+++ b/packages/extension-heading/src/heading.ts
@@ -117,7 +117,7 @@ export const Heading = Node.create<HeadingOptions>({
   addInputRules() {
     return this.options.levels.map(level => {
       return textblockTypeInputRule({
-        find: new RegExp(`^(#{1,${level}})\\s$`),
+        find: new RegExp(`^(#{${Math.min(...this.options.levels)},${level}})\\s$`),
         type: this.type,
         getAttributes: {
           level,