dragoncoder047’s blog

random thoughts about nonrandom things

Articles tagged with programming

Scratching My Head Again

By dragoncoder047

Again I find myself scratching my head over a simple scripting language. Yisp (my attempt at re-writing David Johnson-Davies’ uLisp) got way too complicated; tinyTcl (my attempt a re-writing Serge Zaitsev’s ParTcl) leaked memory like a sieve; and MicroPython can’t be extended with custom functions. All I want …


ParTcl

By dragoncoder047

C headers are annoying. I was getting fed up with uLisp and so I decided to run another Google search for “embeddable scripting language for Arduino”.

It turned up mruby-arduino – poorly documented, and a little too big for my needs.

It turned up eLua – which unfortunately is just a flashable …


Lisp Practice

By dragoncoder047

Today I decided I would have a little fun with Lisp. I wanted to try and make a program that you can type in a function and get a graph of it.

I started off with a function that takes an $x$-value and a list of coefficients, and evaluates …


uLisp Thoughts

By dragoncoder047

For a while I have been trying to work out some bugs in David Johnson-Davies’ uLisp interpreter for Arduinos. I ported some macro and quasiquote extensions for an older version of uLisp to the current version, and apparently I did not do something right – it crashes whenever I try to …


Two Down, A Zillion More To Go

By dragoncoder047

I have finally written code that actually compiled and ran on the little ESP32 board I bought, and I hate the blasted thing already.

For starters, the process is slow, annoying, and tedious:

  1. I click UPLOAD, and the Arduino IDE begins compiling by … dumping preferences.
  2. It then has to shuffle …

Langton's Ant Music

By dragoncoder047

Over the weekend I joined the conwaylife.com forums because I am interested in cellular automata. I find watching the mechanisms mesmerizing, and building them exciting.

I also have an interest in music, and so a year or two ago I tried to generate music from cellular automata. I used …


Gah... I broke it!

By dragoncoder047

Last time I had just announced that Phoo was finished. Well, it’s still finished — except for the fact that the online console no longer works. I tried porting the shell code to Phoo, but that ended up breaking the shell!

It was pretty much a line-for-line translation, so I …


Phoo is (mostly) finished

By dragoncoder047

…Gosh, I just realized that I haven’t posted anything in weeks. I really don’t want to fall prey to the obsession of posting everything online. I hope I’m not.

Anyway, I just finished up the first draft of the documentation of Phoo. The generator script is Python …


Pyodide Issues

By dragoncoder047

I am currently working on an online console for Quackery that is using the Pyodide in-browser Python interpreter. The only bad thing is, Python’s input() function blocks until input is provided, which can’t be done in the browser because everything is asynchronous. The only way for it to …


Why I Prefer Python

By dragoncoder047

In developing Phoo today I was unpleasantly presented with yet another reason why I prefer Python. It was when I was working on the new Importer API for loading external modules into Phoo that I accidentally did this:

class Importer { /* stub class */ }
class FetchImporter extends Importer {
    constructor(basePath, fetchOptions = {}) {
        /* no …

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