Dynamic copyright

content/site.de.txt

@@ -6,4 +6,4 @@ Description: codesignd ist Lukas Bestle, ein Backend-Web-Entwickler und Mitglied
 
 ----
 
-Copyright: © 2015-2017 Lukas Bestle
+Copyright: © (copyright: 2015) Lukas Bestle

content/site.en.txt

@@ -6,4 +6,4 @@ Description: codesignd is Lukas Bestle, a backend web developer and member of th
 
 ----
 
-Copyright: © 2015-2017 Lukas Bestle
+Copyright: © (copyright: 2015) Lukas Bestle

site/plugins/copyright.php

@@ -0,0 +1,19 @@
+<?php
+
+/**
+ * copyright Kirbytag
+ * 
+ * Usage: (copyright: <Copyright begin year>)
+ */
+kirby()->set('tag', 'copyright', [
+	'html' => function($tag) {
+		$begin   = $tag->attr('copyright');
+		$current = date('Y');
+		
+		if($begin === $current) {
+			return $current;
+		} else {
+			return $begin . '–' . $current;
+		}
+	}
+]);