Javascript to aggregate Atom feeds, using Google's Feed API.

atomaggregator.js

google.load("feeds", "1");
 
function AtomEntry(date, text, repo) {
  this.date = date;
  this.text = text;
	this.repo = repo;
}
 
function compareDate(a, b) {
	if (a.date < b.date)
		return 1;
	if (a.date > b.date)
		return -1;
	return 0;
}
 
function loadFeeds(feedlist) {
	var entries = [];
	var numFeeds = feedlist.length;
 
	for (var i = 0; i < feedlist.length; i++) {
 
		var feed = new google.feeds.Feed(feedlist[i]);
		feed.setNumEntries(10);
		feed.load(function(result) {
		 	if (!result.error) {
				for (var j = 0; j < result.feed.entries.length; j++) {
					var rawEntry = result.feed.entries[j];
					var formattedDate = new Date(rawEntry.publishedDate);
 
					var repopattern = /\s[^ ]+(?=:)/g;
					entries.push(new AtomEntry(formattedDate, rawEntry.title, repopattern.exec(result.feed.title)));
				}
 
				numFeeds--;
				if (numFeeds == 0) {
					entries.sort(compareDate);
 
					var container = document.getElementById("feedcontent");
					for (var k = 0; k < entries.length; k++) {
						var datediv = document.createElement("div");
						datediv.className = "feeddate";
						datediv.appendChild(document.createTextNode(entries[k].date.toLocaleDateString()));
						container.appendChild(datediv);
						
						var textdiv = document.createElement("div");
						var span = document.createElement("span");
						span.className = "feedrepo";
						var reponame = document.createTextNode(entries[k].repo);
						span.appendChild(reponame);
						textdiv.appendChild(span);
 
						var committext = document.createTextNode(" : " + entries[k].text);
						textdiv.appendChild(committext);
						container.appendChild(textdiv);
					}
				}	
		 	}
		});	
	}
}