At this moment the groups that will bring us the seventh revision of the report on the algorithmic language Scheme (R7RS), which is going to be split in two, are being formed. I just hope that they keep in mind that even the gods will fear us if they succeed at producing a report (or [...]
Archive of posts filed under the Programming category.
Scheme hits the App Store
I believe I have got the first Scheme application past Apple review into the iTunes App Store. It is yet another Reversi clone, called Reverso. It is a combination of 90% Scheme and 10% Objective-C, written with Gambit-C Scheme. James Long has already shown how to compile Gambit-C for the iPhone, and I started from [...]
Sly Scheme
“You think you know when you can learn, are more sure when you can write, even more when you can teach, but certain when you can program.” – Alan Perlis
Just after have read Lisp in Small Pieces I felt the urge to write a Scheme compiler. This sentiment is common in the Lisp community, I [...]
Escape from Zurg
Lately I have been reading about searching in game trees. So a friend of mine sent me the “Escape from Zurg” paper, which talks about problem solving by tree searching with Haskell.
In a large class of problems one is given a start state and some predicate for a desired final state. Moreover, the rules that [...]
Writing apps for the iPhone in Scheme
James Long wrote a nice and comprehensive article about using Gambit-C Scheme for the development of iPhone applications.
Adding a garbage collector
I guess it is clear by now that I am writing a toy Scheme compiler and virtual machine. Primarily for learning the techniques, I just touch it from time to time. The last addition to the virtual machine was a Cheney-style copy garbage collector. I wanted to implement a very simple algorithm to get a [...]
My voter registration
The voter registration period for the Scheme Steering Comittee is over. I thought I could then post my statement of interest:
I have been using Scheme for almost four years now. I use it mostly for studying programming languages and programming in general, prototyping and testing new ideas, but I have also developed and sold applications [...]
Compiling let
Following my previous Scheme toy interpreter in Lua, I have already tried twice to write a simple Scheme compiler. I failed mostly because the complexity grew too fast and I could not see any of it working before losing interest. But I then read Ghuloum’s paper on incremental compiler construction. It’s a very nice approach, [...]
Lua Programming Gems out!
Hot from the presses, the book is finally here. The table of contents, the front matter and the free chapter 2 are in the book homepage.
Equivalent of and-let*?
By this point I believe it’s clear that I am a big fan of Scheme. Lately I have seen a sharp rise of interest in Ruby in some virtual places I attend (#lisp-br, twitter, IM with coworkers etc.). I am sure Ruby is a fine language, even in spite of several complaints I hear from [...]