1 files changed, 41 insertions, 0 deletions

diff --git a/src/WallabagBundle/Twig/Extension/WallabagExtension.php b/src/WallabagBundle/Twig/Extension/WallabagExtension.php
new file mode 100644
index 00000000..741fb191
--- /dev/null
+++ b/src/WallabagBundle/Twig/Extension/WallabagExtension.php
@@ -0,0 +1,41 @@
+<?php
+
+namespace WallabagBundle\Twig\Extension;
+
+class WallabagExtension extends \Twig_Extension
+{
+    public function getFilters()
+    {
+        return array(
+            new \Twig_SimpleFilter('readingTime', array($this, 'getReadingTime')),
+            new \Twig_SimpleFilter('domainName', array($this, 'getDomainName')),
+        );
+    }
+
+    /**
+     * Returns the domain name for a URL
+     *
+     * @param $url
+     * @return string
+     */
+    public static function getDomainName($url)
+    {
+        return parse_url($url, PHP_URL_HOST);
+    }
+
+    /**
+     * For a given text, we calculate reading time for an article
+     *
+     * @param $text
+     * @return float
+     */
+    public static function getReadingTime($text)
+    {
+        return floor(str_word_count(strip_tags($text)) / 200);
+    }
+
+    public function getName()
+    {
+        return 'wallabag_extension';
+    }
+}
\ No newline at end of file