I wish I had something more important to say, but I just wanted to note that Icon, albeit obscure these days, was/is a neat powerful language, especially for complex text processing. I remember using it back in the 80's for fun projects like writing a chaos generator and more useful things like scanning for patterns in DNA/protein sequences (yes, we had a few sequences even back then). It seemed so exotic with it's fancy backtracking pattern matcher, generators and co-routines -- especially for someone coming from a C background. The biggest drawback for me was lack of popularity, which meant I couldn't share the programs I wrote and couldn't get help from almost anyone I worked with since none of them used Icon or even knew about Icon. For anyone interested, it's still available for many platforms at <a href="http://www.cs.arizona.edu/icon/" rel="nofollow">http://www.cs.arizona.edu/icon/</a> . I got my first Icon distribution on magnetic tape :)