Ran into a problem today where I have a class with a few attributes on it, but I only want a certain three of those attributes to appear in the YAML dump of a class instance.

There's a few useful shorthand ways to create certain objects in Ruby, a couple of obvious ones are [] to create an Array and {} to create a Hash (Or block/Proc). There's some not so obvious ones too, for creating strings, regexes and executing shell commands.

At the 2009 Barcamp Leeds I attended a talk by Neil Crosby where he talked about automated testing, and about how he felt there was a gap in everything that people were testing. Everyone has unit tests, and people are doing full stack testing too, but no-one (so he feels) does XHTML/CSS/JS validation as part of their automated test suite. ...

I happened to be sent a link to the OWASP paper on Rails Security recently and started reading it. Partway in there's a section on Regular Expressions, which opens with the following line:

So I just installed ruby 1.9.1 through MacPorts and wanted to easily migrate my rubygems across from 1.8 to see which ones would fail to install.