add getSchema & getHtml utility functions to generate HTML from a ProseMirror/tiptap document, without an Editor instance

packages/core/src/utils/getSchema.ts

@@ -0,0 +1,35 @@
+import Extension from '../Extension'
+import Node from '../Node'
+import Mark from '../Mark'
+import { Schema } from 'prosemirror-model'
+import collect from 'collect.js'
+
+export default function getSchema(extensions: (Extension | Node | Mark)[]): Schema {
+  return new Schema({
+    topNode: getTopNodeFromExtensions(extensions),
+    nodes: getNodesFromExtensions(extensions),
+    marks: getMarksFromExtensions(extensions),
+  })
+}
+
+function getNodesFromExtensions(extensions: (Extension | Node | Mark)[]): any {
+  return collect(extensions)
+    .where('extensionType', 'node')
+    .mapWithKeys((extension: Node) => [extension.name, extension.schema()])
+    .all()
+}
+
+function getTopNodeFromExtensions(extensions: (Extension | Node | Mark)[]): any {
+  const topNode = collect(extensions).firstWhere('topNode', true)
+
+  if (topNode) {
+    return topNode.name
+  }
+}
+
+function getMarksFromExtensions(extensions: (Extension | Node | Mark)[]): any {
+  return collect(extensions)
+    .where('extensionType', 'mark')
+    .mapWithKeys((extension: Mark) => [extension.name, extension.schema()])
+    .all()
+}