Added GeoRSS support

Supports basic GeoRSS with latitude/longitude fields.

lib/rss.js

@@ -23,6 +23,8 @@ function RSS (options, items) {
     this.managingEditor = options.managingEditor;
     this.webMaster      = options.webMaster;
     this.ttl            = options.ttl;
+    //option to return feed as GeoRSS
+    this.georss         = options.georss || false;
     this.items          = items || [];
 
     this.item = function (options) {
@@ -35,6 +37,8 @@ function RSS (options, items) {
             categories:     options.categories || [],
             author:         options.author,
             date:           options.date,
+            lat:            options.lat,
+            lng:            options.lng,
             enclosure:      options.enclosure || false
         };
 
@@ -101,6 +105,12 @@ function generateXML (data){
         ifTruePush(item.author || data.author, item_values, { 'dc:creator': { _cdata: item.author || data.author } });
         ifTruePush(item.date, item_values, { pubDate:      new Date(item.date).toGMTString() });
 
+        //Add lat and long if GeoRSS is true.
+        if(data.georss){
+            ifTruePush(item.lat, item_values, {'geo:lat': item.lat});
+            ifTruePush(item.lng, item_values, {'geo:long': item.lng});
+        }
+
         if( item.enclosure && item.enclosure.url ) {
             if( item.enclosure.file ) {
                 item_values.push({
@@ -129,14 +139,22 @@ function generateXML (data){
 
     });
 
-    return { rss: [
+    //set up the attributes for the RSS feed.
-        { _attr: {
+    var _attr = {
         'xmlns:dc':         'http://purl.org/dc/elements/1.1/',
         'xmlns:content':    'http://purl.org/rss/1.0/modules/content/',
         'xmlns:atom':       'http://www.w3.org/2005/Atom',
-            version: '2.0'
+        'version': '2.0'
-             } },
+    };
-        { channel: channel }
+
+    //only add namespace if GeoRSS is true
+    if(data.georss){
+        _attr['xmlns:geo'] = 'http://www.w3.org/2003/01/geo/wgs84_pos#';
+    }
+
+    return { rss: [
+        { '_attr': _attr },
+        { 'channel': channel }
     ] };
 }
 

readme.md

@@ -32,6 +32,7 @@
             language: 'en',
             categories: ['Category 1','Category 2','Category 3'],
             pubDate: 'May 20, 2012 04:00:00 GMT',
+            //georss: true, //set this flag if you wish for the feed to be returned in GeoRSS. A lat/lng field will be expected for each item.
             ttl: '60'
         });
 
@@ -43,7 +44,9 @@
         guid: '1123', // optional - defaults to url
         categories: ['Category 1','Category 2','Category 3','Category 4'], // optional - array of item categories
         author: 'Guest Author', // optional - defaults to feed author property
-        date: 'May 27, 2012' // any format that js Date can parse.
+        date: 'May 27, 2012', // any format that js Date can parse.
+        // lat: 33.417974, //latitude field. Provide if georss is true in the feed setup.
+        // lng: -111.933231, //longitude field. Provide if georss is true in the feed setup.
         enclosure : {url:'...', file:'path-to-file'} // optional
     });
 
@@ -66,6 +69,7 @@
  * _categories_ <array> Optional. One or more categories this feed belongs to.
  * _pubDate_ <Date object or date string> Optional. The publication date for content in the feed
  * _ttl_ <int> Optional. Number of minutes feed can be cached before refreshing from source.
+ * _georss_ <boolean> Optional. Whether to make the feed a GeoRSS feed.
 
 ### Item Options
 
@@ -86,6 +90,8 @@ an have any number of items. Ten to tenty is usually good.
  * _date_ <Date object or date string> The date and time of when the item was created.  Feed
  readers use this to determine the sort order. Some readers will also use it to determine
  if the content should be presented as unread.
+ * _lat_ <number> The latitude coordinate of the item. This will only be recognized if this is a GeoRSS feed.
+ * _lng_ <number> The longitude coordinate of the item. This will only be recognized if this is a GeoRSS feed.
 
 ### Methods