1 files changed, 97 insertions, 0 deletions
diff --git a/3rdparty/fguillot/picofeed/lib/PicoFeed/Syndication/Writer.php b/3rdparty/fguillot/picofeed/lib/PicoFeed/Syndication/Writer.php
new file mode 100644
index 000000000..3b4557dad
--- /dev/null
+++ b/3rdparty/fguillot/picofeed/lib/PicoFeed/Syndication/Writer.php
@@ -0,0 +1,97 @@
+<?php
+
+namespace PicoFeed\Syndication;
+
+use RuntimeException;
+
+/**
+ * Base writer class
+ *
+ * @author    Frederic Guillot
+ * @package   Syndication
+ * @property  string   $description  Feed description
+ */
+abstract class Writer
+{
+    /**
+     * Dom object
+     *
+     * @access protected
+     * @var \DomDocument
+     */
+    protected $dom;
+
+    /**
+     * Items
+     *
+     * @access public
+     * @var array
+     */
+    public $items = array();
+
+    /**
+     * Author
+     *
+     * @access public
+     * @var array
+     */
+    public $author = array();
+
+    /**
+     * Feed URL
+     *
+     * @access public
+     * @var string
+     */
+    public $feed_url = '';
+
+    /**
+     * Website URL
+     *
+     * @access public
+     * @var string
+     */
+    public $site_url = '';
+
+    /**
+     * Feed title
+     *
+     * @access public
+     * @var string
+     */
+    public $title = '';
+
+    /**
+     * Feed modification date (timestamp)
+     *
+     * @access public
+     * @var integer
+     */
+    public $updated = 0;
+
+    /**
+     * Generate the XML document
+     *
+     * @abstract
+     * @access public
+     * @param  string   $filename   Optional filename
+     * @return string
+     */
+    abstract public function execute($filename = '');
+
+    /**
+     * Check required properties to generate the output
+     *
+     * @access public
+     * @param  array     $properties    List of properties
+     * @param  mixed     $container     Object or array container
+     */
+    public function checkRequiredProperties(array $properties, $container)
+    {
+        foreach ($properties as $property) {
+            if ((is_object($container) && ! isset($container->$property)) || (is_array($container) && ! isset($container[$property]))) {
+                throw new RuntimeException('Required property missing: '.$property);
+            }
+        }
+    }
+}