A good url regular expression? (repost)
I’m moving this post from http://geekswithblogs.net/casualjim/archive/2005/12/01/61722.aspx I started out blogging on geeks with blogs but I can’t allow comments there anymore or I get too much spam, so I’m moving the post from there to this place.  Various people have contributed through the comments in the other blog post. So here I have better control over the spam and can open the comments again. I have been looking for a good first layer of validating an url to see if it is valid. For checking the format of the url it seems to me to be the most logical approach

Creating launcher scripts for IronRuby
It’s been a while since I blogged, I’ve been terribly busy going through some changes and prepping the book. Anyway lately a lot of blog posts have been written on how to ironruby with cucumber to test your .NET code. While I think it’s great people are using ironruby and cucumber, the guide you can find on aslak’s github wiki isn’t the most ideal solution as it will  only work for windows and it requires MRI to be installed on your system.  So I thought I’d write up how I’ve been creating launchers that work both on windows .NET and mono systems. Another problem the approach of setting the GEM_PATH to the MRI gem location is that if your gem requi