There's a very old version at http://arclanguage.com/, but the current codebase isn't public.
FWIW, here's the Arc code I wrote to generate a string of the form "Italicized Title - https://news.ycombinator.com/item?id=$ID - Month Year (n comments)". The variable i stands for item, which is HN's term for a post (story, comment, or poll):
I implemented all of the book almost 10 years ago in Python and pygame. I was starting to code professionally back then and it is responsible for much of the confidence I needed. It definitely is more about nature and math than code. If you're the kind of hands on learner like I am, then I'd recommend using this as a resource to learn to code first before learning about theorectical data structures. Thanks to the author, I am now in a position to buy it :)
My intention is to send free digital updates to those who purchased the original 2012 PDF via the website, I have a list via fetchapp.com. I will probably remove this message for the new version. Print editions or other proprietary ebook formats (like kindle, etc) will be for purchase only for the new version. More: https://github.com/nature-of-code/natureofcode.com/pull/42
Hi! I'm the author, excited to find this post here. I am working furiously on a new version of the book, if you want to see it in progress there is a preview site here: https://nature-of-code-2nd-edition.netlify.app/
I think this book should be used to teach "Programming" (in any language) in School because it shows how to use Computers as an aid to actually learning/simulating Science which dovetails nicely with the Maths/Physics/Chemistry/Biology classes.
Teaching this way will actually motivate students to understand Science since they can program the evidence and convince themselves of the "Scientific Truth" of what they have studied.
When I first started programing, I was convinced that text applications weren't real programs, and the visual aspect of the book pulled me in to be a life-time programmer :)