From 3deae61a15bf05f1b36f1575f5521c78c4646736 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Philipp=20Ku=CC=88hn?= <kontakt@philipp-kuehn.com>
Date: Tue, 21 Apr 2020 22:48:27 +0200
Subject: [PATCH] add heading input rule

---
 packages/extension-heading/index.ts | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/packages/extension-heading/index.ts b/packages/extension-heading/index.ts
index 577af280..3594b326 100644
--- a/packages/extension-heading/index.ts
+++ b/packages/extension-heading/index.ts
@@ -1,5 +1,7 @@
 import { Node, CommandSpec } from '@tiptap/core'
 import { NodeSpec } from 'prosemirror-model'
+import VerEx from 'verbal-expressions'
+import { textblockTypeInputRule } from 'prosemirror-inputrules'
 
 type Level = 1 | 2 | 3 | 4 | 5 | 6
 
@@ -52,4 +54,17 @@ export default class Heading extends Node {
     }
   }
 
+  inputRules() {
+    return this.options.levels.map((level: Level) => {
+      const regex = VerEx()
+        .startOfLine()
+        .find('#')
+        .repeatPrevious(level)
+        .whitespace()
+        .endOfLine()
+
+      return textblockTypeInputRule(regex, this.type, { level })
+    })
+  }
+
 }
\ No newline at end of file