Thanks for sharing. This is a post I wrote way back in 2007 and, even though, as many have pointed out, the algorithm is very inefficient, it is still a good illustration of how powerful regular expressions are.
When I am explaining the basics of regular expressions to people, I always refer them to this post to make them realize that regular expressions are not only glorified search terms. In general, they are amazed :-)
When I am explaining the basics of regular expressions to people, I always refer them to this post to make them realize that regular expressions are not only glorified search terms. In general, they are amazed :-)