Brainfuck is a turing-complete programming language and abstract machine which has only eight operators.

I’ve written a greasemonkey script which searches webpages for specially formatted brainfuck programs, and turns them into graphics by running a brainfuck interpreter and piping the output of the program to an HTML 5 canvas element.

Full details of the implementation are available on my website, where the embedded brainfuck canvas greasemonkey script can also be downloaded.

Here is an example program:

☸⠠⠐++++++++++++++++[}++++++++++++++++{-]}[{.+}-]{[-.]

And here is what it looks like when it runs:

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There’s a neat video player available for android called yxFlash, which can play a wide variety of formats that the built-in player cannot. The droid does a decent job of playing back foreign video formats such as wmv, divx, flv, mkv, but sadly it doesn’t quite have enough grunt to play back high resolution clips smoothly.

So, here’s how to use ffmpeg in Linux to transcode and resize pretty much any video to a format that the Motorola Droid or Milestone plays with the greatest ease – h264 & aac. The command also resizes the video to 480 pixels high, so it’s the right size for the droid / milestone’s screen.

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So after an evening of not too painful bash scripting, pivot is now¹ available as an auto-install tool on SDF.

See http://motd.org/ for more details about SDF’s web tools collection.

^{1 Once I’ve squashed whatever bug is causing the dubious file permissions.}