Nokogiri is such a wonderful library. Today we were trying to get the equivalent xpath query from a css expression and we found a fun way to do it automatically using Nokogiri.

Today we want to try something new and funny. Let’s do some Comet“) aka HTTP server push using Ajax and long pulling requests as used in Flash-less chat services such as Campfire or Talker.

It would be sacriledge to use the old and dusty ruby 1.8.7 and stable as a dead cow sinatra version 0.9 for our experiments. Jump the wagon for cutting edge ruby 1.9.2 and sinatra 1.0a, and enjoy the speed improvements they both provide.