The latest blog posts to take off on Hacker News. 3,708 posts.
This article attempts to outline, in informal terms, a new theory of combinators, related to the theory of Combinatory Logic pioneered by Moses Schonfinkel, Haskell Curry, and others in the 1930s. Although not essential, an understanding of the classical theory of combinators may be helpful (see the links at the…
2023 seems to have been the year where I "made the rounds" of a number of major Lisps. There were several elements that lead to this. Firstly must have been my exposure to Elixir in 2022, which introduced me to the idea of debugging live systems and "staying in your program". Secondly must have been my chief complaint…
My own concatenative programming language
Scrapscript is a small, pure, functional, content-addressable, network-first programming language. It’s designed to allow creating small, simply shareable programs. The language was created by Taylor Troesh and the main implementation was created by me and Chris.
I wrote the analysis of “useless sugar” features of Ruby for two months, and I regret nothing.
This post announces SaberVM, an abstract machine for functional programs that guarantees safety, reliability, and portability.
Some time ago, during a code review, I had a discussion with a colleague of mine about preferring dict() over {} in new Python code. They argued that dict() is more readable — and expresses intent more clearly — therefore should be preferred. I wasn’t convinced by that, but at that time I didn’t have any…
One of the established and most popular programming languages is the C programming language. It is relatively easy to learn, and highly practical. Maybe surprisingly, the C programming language keeps evolving, slowly and carefully. If you have GCC 13 or LLVM (Clang) 16, you already have a compiler with some of the…
I was just chatting with Ben Titzer on Twitter about control flow in his Virgil language (which is cool and you should definitely check ...
Every now and then, I stumble onto some algorithm or idea that’s so clever and such a perfect solution to a problem that I feel like I got smarter or gained a new superpower just by learning it. Heaps were one, just about the only thing I got out of my truncated CS education. I recently stumbled onto another: Pratt or…
Sit beside me and hear this crazy old man's tale of when I asked Rust for too much
Over the weekend, I was working on a personal Rust project when I ran into an excessive memory usage problem. After an evening of trial and error, I found a workaround to fix the memory usage, but I still didn’t understand how the issue was even possible, so I then spent another evening digging through the source code…
Usually in C identifiers are not directly followed by strings. But when U prefixed literals were introduced in C. there still were some rare clashes with existing code. This happened were a macro U…
The Rust language has incrementally grown a set of patterns to support control-flow effects including error handling, iteration, and asynchronous I/O. In The registers of Rust , boats lays out four aspects of this pattern shared by Rust’s three effects. Today these effects are typically used in isolation, or at most…
Some C++ folk seem to think so, but they're wrong!
Reviewing the JIT in Python 3.13
First of all, this article is an exercise in recreational "because I can" programming. If you just want to make your Python code go fast, this is perhaps not the article for you. And perhaps Python is not the language you want, either!
This is my closing talk ( video ) from the GopherConAU conference in Sydney, given November 10, 2023, the 14th anniversary of Go being lau...
Everything was fine until BASIC entered the picture. Edsger Dijkstra in a hallucination of 2023’s AI Simplicity is the ultimate sophistication. Leonardo Da Vinci It is practically impossible to teach good programming to students that have had a prior exposure to BASIC: as potential programmers they are mentally…
I've done a lot in my career. From working on business support software to big backend systems and even robotics. If there's been a consistent through-line to my career, it's the Ruby programming language.
Zig is a new, independently developed low-level programming language. It’s a modern reimagining of C that attempts to retain C’s performance while embracing improvements from the last 30 years of tooling and language design. Zig makes calling into C code easier than any other language I’ve used. Zig also treats unit…
Static vs dynamic typing debates often flounder because the debators see from two different perspectives without knowing it. Learning to identify the two perspectives can calm the discussion. The tension between the two perspectives has led to Gradual Typing and other technologies.
Users of mature C libraries conventionally get to choose how memory is allocated — that is, when it cannot be avoided entirely . The C standard never laid down a convention — perhaps for the better — so each library re-invents an allocator interface. Not all are created equal, and most repeat a few fundamental…
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I recently wrote a small 16-bit Forth for 8086 PCs running DOS. I built the basic one-liner loop words that can trivially be built with j...
Ruby's `private` keyword means something different compared to basically all other object-oriented languages. Most other languages don't even have a feature matching what Ruby calls `private`, but incredibly, Scala does, which it calls `protected[this]` (meaning
Understand the mechanics of dynamic dispatch implementation in CPython
People keep asking why Jepsen is written in Clojure , so I figure it’s worth having a referencable answer. I’ve programmed in something like twenty languages. Why choose a Weird Lisp?
Or, about the virtue of exactly one phrase.
