NOTE: This is an old post and this site no longer uses SHJS to highlight code blocks.
-module(hello). -export([start/0]). start() -> io:fwrite("Hello, world!").
This can then be converted for use with SHJS, which is the library I'm using to highlight the source code above. The .lang file should also work with GNU Source-highlight and any other software using the same format, but I've not tested it.