[FEATURE] Format new line to paragraph viewhelper

Most of the time the format nl2br viewhelper produces
unwanted and unnessesary line breaks where a paragraph
is acturally the wanted result. The new viewhelper converts
linebreaks to actual paragraphs and cleans out empty
segments. In contrary to the form html viewhelper anything
else wil be left untouched.

Releases: master

Classes/ViewHelpers/Format/Nl2pViewHelper.php

@@ -0,0 +1,48 @@
+<?php
+declare(strict_types = 1);
+
+/*
+ * This file is part of the package t3g/blog.
+ *
+ * For the full copyright and license information, please read the
+ * LICENSE file that was distributed with this source code.
+ */
+
+namespace T3G\AgencyPack\Blog\ViewHelpers\Format;
+
+use TYPO3Fluid\Fluid\Core\Rendering\RenderingContextInterface;
+use TYPO3Fluid\Fluid\Core\ViewHelper\AbstractViewHelper;
+use TYPO3Fluid\Fluid\Core\ViewHelper\Traits\CompileWithContentArgumentAndRenderStatic;
+
+class Nl2pViewHelper extends AbstractViewHelper
+{
+    use CompileWithContentArgumentAndRenderStatic;
+
+    /**
+     * @var bool
+     */
+    protected $escapeOutput = false;
+
+    /**
+     * @throws \TYPO3Fluid\Fluid\Core\ViewHelper\Exception
+     */
+    public function initializeArguments()
+    {
+        $this->registerArgument('value', 'string', 'string to format');
+    }
+
+    /**
+     * @param array $arguments
+     * @param \Closure $renderChildrenClosure
+     * @param \TYPO3Fluid\Fluid\Core\Rendering\RenderingContextInterface $renderingContext
+     * @return string
+     */
+    public static function renderStatic(array $arguments, \Closure $renderChildrenClosure, RenderingContextInterface $renderingContext)
+    {
+        $data = explode('<br>', nl2br($renderChildrenClosure(), false));
+        $data = array_filter($data, function ($value) {
+            return !empty(trim($value));
+        });
+        return '<p>' . implode('</p><p>', $data) . '</p>';
+    }
+}