From 2dc9bf14bce8b652f9fff14bb73196ea22f52553 Mon Sep 17 00:00:00 2001
From: Awilum <awilum@msn.com>
Date: Mon, 19 Aug 2019 12:26:52 +0300
Subject: [PATCH] Flextype Core: YamlTwigExtension added. #186

---
 flextype/dependencies.php           |  3 ++
 flextype/twig/YamlTwigExtension.php | 45 +++++++++++++++++++++++++++++
 2 files changed, 48 insertions(+)
 create mode 100644 flextype/twig/YamlTwigExtension.php

diff --git a/flextype/dependencies.php b/flextype/dependencies.php
index 60bf2468..fae41098 100644
--- a/flextype/dependencies.php
+++ b/flextype/dependencies.php
@@ -237,6 +237,9 @@ $flextype['view'] = static function ($container) {
     // Add Json Twig Extension
     $view->addExtension(new JsonTwigExtension());
 
+    // Add Yaml Twig Extension
+    $view->addExtension(new YamlTwigExtension());
+
     // Add Markdown Twig Extension
     $view->addExtension(new MarkdownTwigExtension($container));
 
diff --git a/flextype/twig/YamlTwigExtension.php b/flextype/twig/YamlTwigExtension.php
new file mode 100644
index 00000000..da8c608c
--- /dev/null
+++ b/flextype/twig/YamlTwigExtension.php
@@ -0,0 +1,45 @@
+<?php
+
+declare(strict_types=1);
+
+/**
+ * Flextype (http://flextype.org)
+ * Founded by Sergey Romanenko and maintained by Flextype Community.
+ */
+
+namespace Flextype;
+
+use Twig_Extension;
+use Twig_SimpleFunction;
+
+class YamlTwigExtension extends Twig_Extension
+{
+    /**
+     * Returns a list of functions to add to the existing list.
+     *
+     * @return array
+     */
+    public function getFunctions() : array
+    {
+        return [
+            new Twig_SimpleFunction('yaml_decode', [$this, 'decode']),
+            new Twig_SimpleFunction('yaml_encode', [$this, 'encode']),
+        ];
+    }
+
+    /**
+     * Encode YAML
+     */
+    public function encode($input, int $inline = 5, int $indent = 2, int $flags = 16) : string
+    {
+        return YamlParser::encode($input, $inline, $indent, $flags);
+    }
+
+    /**
+     * Decode YAML
+     */
+    public function decode(string $input, int $flags = 0)
+    {
+        return YamlParser::decode($input, $flags);
+    }
+}