add basic inputrules and pasterules

packages/extension-codeblock/index.ts

@@ -0,0 +1,23 @@
+import { Node } from '@tiptap/core'
+import { NodeSpec } from 'prosemirror-model'
+
+export default class CodeBlock extends Node {
+
+  name = 'code_block'
+
+  schema(): NodeSpec {
+    return {
+      content: 'text*',
+      marks: 'italic',  
+      group: 'block',
+      code: true,
+      defining: true,
+      draggable: false,
+      parseDOM: [
+        { tag: 'pre', preserveWhitespace: 'full' },
+      ],
+      toDOM: () => ['pre', ['code', 0]],
+    }
+  }
+
+}