added controller to render markdown documentation #129

src/Twig/MarkdownExtension.php

@@ -0,0 +1,54 @@
+<?php
+
+/*
+ * This file is part of the Kimai time-tracking app.
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace App\Twig;
+
+use App\Utils\Markdown;
+use Twig\TwigFilter;
+
+/**
+ * A twig extension to handle markdown parser.
+ */
+class MarkdownExtension extends \Twig_Extension
+{
+    /**
+     * @var Markdown
+     */
+    private $markdown;
+
+    /**
+     * MarkdownExtension constructor.
+     * @param Markdown $parser
+     */
+    public function __construct(Markdown $parser)
+    {
+        $this->markdown = $parser;
+    }
+
+    /**
+     * @return TwigFilter[]
+     */
+    public function getFilters()
+    {
+        return [
+            new TwigFilter('md2html', [$this, 'markdownToHtml'], ['is_safe' => ['html']]),
+        ];
+    }
+
+    /**
+     * Transforms the given Markdown content into HTML
+     *
+     * @param string $content
+     * @return string
+     */
+    public function markdownToHtml(string $content): string
+    {
+        return $this->markdown->toHtml($content);
+    }
+}