Hacking Feeds module to have a meetup.com version of the RSS feed parser

www/sites/all/modules/feeds/feeds.plugins.inc

@@ -96,6 +96,17 @@ function _feeds_feeds_plugins() {
       'path' => $path,
     ),
   );
+  $info['FeedsSyndicationParserMeetup'] = array(
+    'name' => 'Common syndication parser for meetup.com',
+    'description' => 'Parse RSS and Atom feeds on meetup.com.',
+    'help' => 'Parse meetup.com XML feeds in RSS 1, RSS 2 and Atom format.',
+    'handler' => array(
+      'parent' => 'FeedsParser',
+      'class' => 'FeedsSyndicationParserMeetup',
+      'file' => 'FeedsSyndicationParserMeetup.inc',
+      'path' => $path,
+    ),
+  );
   $info['FeedsOPMLParser'] = array(
     'name' => 'OPML parser',
     'description' => 'Parse OPML files.',

www/sites/all/modules/feeds/plugins/FeedsSyndicationParserMeetup.inc

@@ -0,0 +1,81 @@
+<?php
+
+/**
+ * Class definition for Common Syndication Parser Meetup.
+ *
+ * Parses RSS and Atom feeds.
+ */
+class FeedsSyndicationParserMeetup extends FeedsParser {
+
+  /**
+   * Implements FeedsParser::parse().
+   */
+  public function parse(FeedsSource $source, FeedsFetcherResult $fetcher_result) {
+    feeds_include_library('common_syndication_parser.inc', 'common_syndication_parser');
+    $feed = common_syndication_parser_parse($fetcher_result->getRaw());
+    $result = new FeedsParserResult();
+    $result->title = $feed['title'];
+    $result->description = $feed['description'];
+    $result->time = $feed['description'];
+    $result->link = $feed['link'];
+    if (is_array($feed['items'])) {
+      foreach ($feed['items'] as $item) {
+        if (isset($item['geolocations'])) {
+          foreach ($item['geolocations'] as $k => $v) {
+            $item['geolocations'][$k] = new FeedsGeoTermElement($v);
+          }
+        }
+        $result->items[] = $item;
+      }
+    }
+    return $result;
+  }
+
+  /**
+   * Return mapping sources.
+   *
+   * At a future point, we could expose data type information here,
+   * storage systems like Data module could use this information to store
+   * parsed data automatically in fields with a correct field type.
+   */
+  public function getMappingSources() {
+    return array(
+      'title' => array(
+        'name' => t('Title'),
+        'description' => t('Title of the feed item.'),
+      ),
+      'description' => array(
+        'name' => t('Description'),
+        'description' => t('Description of the feed item.'),
+      ),
+      'description' => array(
+        'name' => t('Event date/time'),
+        'description' => t('Event date/time parsed from the description field.'),
+      ),
+      'author_name' => array(
+        'name' => t('Author name'),
+        'description' => t('Name of the feed item\'s author.'),
+      ),
+      'timestamp' => array(
+        'name' => t('Published date'),
+        'description' => t('Published date as UNIX time GMT of the feed item.'),
+      ),
+      'url' => array(
+        'name' => t('Item URL (link)'),
+        'description' => t('URL of the feed item.'),
+      ),
+      'guid' => array(
+        'name' => t('Item GUID'),
+        'description' => t('Global Unique Identifier of the feed item.'),
+      ),
+      'tags' => array(
+        'name' => t('Categories'),
+        'description' => t('An array of categories that have been assigned to the feed item.'),
+      ),
+      'geolocations' => array(
+        'name' => t('Geo Locations'),
+        'description' => t('An array of geographic locations with a name and a position.'),
+      ),
+     ) + parent::getMappingSources();
+  }
+}