TOC filter on document body field

composer.json

@@ -75,6 +75,7 @@
         "drupal/snowball_stemmer": "^2.0",
         "drupal/theme_switcher": "dev-8.x-1.x",
         "drupal/toc_api": "^1.1",
+        "drupal/toc_filter": "^2.0",
         "drupal/token": "^1.9",
         "drupal/token_filter": "^1.2",
         "drupal/twig_tweak": "^3.0",
@@ -121,7 +122,15 @@
     "minimum-stability": "dev",
     "prefer-stable": true,
     "config": {
-        "sort-packages": true
+        "sort-packages": true,
+        "allow-plugins": {
+            "dealerdirect/phpcodesniffer-composer-installer": true,
+            "composer/installers": true,
+            "cweagans/composer-patches": true,
+            "drupal/console-extend-plugin": true,
+            "drupal/core-composer-scaffold": true,
+            "drupal/core-project-message": true
+        }
     },
     "extra": {
         "drupal-scaffold": {

config/sync/core.extension.yml

@@ -91,6 +91,7 @@ module:
   text: 0
   theme_switcher: 0
   toc_api: 0
+  toc_filter: 0
   token: 0
   token_filter: 0
   toolbar: 0

config/sync/filter.format.os2loop_documents_body.yml

@@ -6,6 +6,7 @@ dependencies:
     - convert_media_tags_to_markup
     - editor
     - media
+    - toc_filter
     - token_filter
 name: 'Document body (legacy)'
 format: os2loop_documents_body
@@ -91,3 +92,12 @@ filters:
     weight: -42
     settings:
       replace_empty: '0'
+  toc_filter:
+    id: toc_filter
+    provider: toc_filter
+    status: true
+    weight: 0
+    settings:
+      type: default
+      auto: ''
+      block: '0'