http://ken.friislarsen.net/blog ... but that does not matter, because I turn it into a sexy dance Fri, 12 Sep 2008 13:46:52 +0000 http://backend.userland.com/rss092 en Microsoft Denmark have invited me to participate in JAOO 2008. If I in return spend some time in the Microsoft stand demoing F# and answering questions about F# and functional programming in general. When Martin Esmann (Microsoft Academic Developer Evangelist) approached me, I told him that I'd be happy to show ... http://ken.friislarsen.net/blog/2008/09/11/i-am-going-to-jaoo-2008-as-a-f-expert/ I'm getting ready to participate in the eleventh ICFP programming contest. So far everything works like a charm, KVM can run the LiveCD for the contest without a problem: kvm -cdrom ICFPCD15.iso & I hope I'll be able to spend more time on the contest compared to last time I participated. http://ken.friislarsen.net/blog/2008/07/11/getting-ready-for-the-icfp-2008-programming-contest/ In my last post I showed how to decode morse code in Python using list comprehensions. In this post I will show how to do it in F# instead. First using list comprehensions: let codes = [("A",".-"); ("B","-..."); ("C","-.-."); ("D","-.."); ("E","."); ("F","..-."); ... http://ken.friislarsen.net/blog/2007/11/09/decoding-morse-code-with-f-comprehensions/ As a small exercise for getting up to speed with Python I decided to solve ruby quiz #121, which is to to write a function that finds all possible decodings of a string of Morse codes without letter- and word-separators. Given the nature of the problem I decided to ... http://ken.friislarsen.net/blog/2007/09/19/morse-code-decoding-with-python-list-comprehensions/ Peter Sestoft and I have written a note about how to write scanners and parsers in C#. The note is based on earlier versions for SML and Java. The note contains an thorough introduction to grammars on Backus--Naur form (BNF). This includes a description of properties your grammar should have ... http://ken.friislarsen.net/blog/2006/09/08/recursive-descent-parsers-in-c/ In 1967, during excavation for the construction of a new shopping center in Monroeville, Pennsylvania, workers uncovered a vault containing a cache of ancient scrolls. Most were severely damaged, but those that could be recovered confirmed the existence of a secret society long suspected to have been active in the ... http://ken.friislarsen.net/blog/2006/07/27/icfp-contest-2006-team-kfl/ There is no theory of evolution. Just a list of creatures Chuck Norris has allowed to live. http://ken.friislarsen.net/blog/2006/01/05/theory-of-evolution/ The answer to yesterdays quiz is: Yes, types are necessary for lambda-lifting refactoring. Namely, if the lifted function contains an overloaded operator such as, e.g., +. For example, given the program: fun foo x = let fun add y = x + y in add ... http://ken.friislarsen.net/blog/2005/12/21/refactoring-sml-quiz-part-2/ Yesterday, I discussed with some students who are implementing an SML plug-in for eclipse, whether types are necessary for a lambda-lifting refactoring for SML. So today's quiz is simply: Are types necessary for lambda-lifting refactoring in SML? Why/Why not? Remember, the refactoring works on valid SML programs, and after the ... http://ken.friislarsen.net/blog/2005/12/20/refactoring-sml-quiz/ Say you want to implement a class that implements the IEnumerable interface in C#. Then you have two choices, either to implement the old-style non-generic IEnumerable interface or you can implements the generic IEnumerable<T> interface. Given those choices we of course want to implement the new generic version ... http://ken.friislarsen.net/blog/2005/07/25/implementing-the-generic-ienumerable-interface/