[FEATURE] Add TCA renderType additionalHelpText

Classes/FormEngine/AdditionalHelpText.php

@@ -0,0 +1,30 @@
+<?php
+//declare(strict_types=1);
+
+namespace Cjel\TemplatesAide\FormEngine;
+
+use TYPO3\CMS\Backend\Form\AbstractNode;
+use TYPO3\CMS\Extbase\Utility\LocalizationUtility;
+
+class AdditionalHelpText extends AbstractNode
+{
+    /**
+     * Handler for single nodes
+     *
+     * @return array As defined in initializeResultArray() of AbstractNode
+     */
+    public function render(): array
+    {
+        $result = $this->initializeResultArray();
+        $text = $this->data['renderData']['fieldInformationOptions']['text'];
+        if (substr($text, 0, 4) !== 'LLL:') {
+            $result['html'] = $text;
+        } else {
+            $result['html'] = LocalizationUtility::translate($text, 'templates_aide');
+        }
+        if (array_key_exists('linebreak', $this->data['renderData']['fieldInformationOptions'])) {
+            $result['html'] .= '<br />&nbsp;';
+        }
+        return $result;
+    }
+}

ext_localconf.php

@@ -47,3 +47,9 @@ call_user_func(
     }
 );
 ## EXTENSION BUILDER DEFAULTS END TOKEN - Everything BEFORE this line is overwritten with the defaults of the extension builder
+
+$GLOBALS['TYPO3_CONF_VARS']['SYS']['formEngine']['nodeRegistry'][1549297828] = [
+   'nodeName' => 'additionalHelpText',
+   'priority' => 30,
+   'class' => \Cjel\TemplatesAide\FormEngine\AdditionalHelpText::class,
+];