One of my hobbies is software development, usually resulting in applications
that scratch an itch of mine. Here's a short summary of the most recent ones.
You can also visit my GitHub profile for more
- pygount count lines of code for hundreds
of programming languages. It utilizes pygments' vast
collection of lexers typically used for syntax highlighting. The first
version was intended as a joke on tools like SLOCCount
or CLOC to show that a similar tool written
in Python can count SLOC's for more programming languages than it has SLOC's
Over time, functionality was added and these days it is used for serious
tracking of project SLOC and research projects.
- Cutplace, a tool to validate that
tabular data conform to an quite easy to read and write formal interface
- ebcdic, a collection of Python codecs
for various EBCDIC encodings. I
used it a lot while working in finance when processing or sanitizing data
we got from the mainframe but wanted to continue with on a modern platform,
typically in relation with data warehousing. Luckily, this is easy to
maintain because EBCDIC does not change that much.
- loxun, a Python module to write
large output in XML using Unicode and namespaces. Of course, you can also
use it for small XML output with plain 8 bit strings and no namespaces. At
EuroPython 2012 I did a
about the events that lead to this module, accompanied by
and example code
- Pygments, a generic syntax highlighter that provides
lexers for hundreds or programming languages and text formats. When I was
working in finance, I added lexers for some of the obscure languages we were
using on the mainframe (Easytrieve, JCL, Rexx) and when processing data
(Transact-SQL, VBScript). Because of my own tool pygount (see above for details)
heavily uses pygments, I occasionally help tracking down or fixing bugs in
lexers from other people.
- For dynAmite, a multi player bomberman clone
for AmigaOS I authored a couple of
and a style named "obvious".
The latter makes it easy to map colors from the chat window to actual players.
The projects below are not really maintained anymore. Nevertheless,
(possibly after some convincing) they should still compile and run
on modern hardware and platforms.
- ASCII-Scramble, a shoot'em up
for MS DOS text mode using only ASCII characters written in
Pascal. I developed it on an ancient 8086 laptop while working
as postman during a holiday job in the 1990's when living at
my parents' place. There, I was away from my more fun and
powerful Amiga computer but still could not resist the urge to
code something. Anything. On any platform. In any language. Now.
- Hsc), probably one of the first
static site generators (though this term did not exist yet and
the manual refers to it as "HTML preprocessor"). Written in C,
maintained by me until 1998. The project was later picked up
and improved a lot by Matthias Bethke.
probably one of the first flashlight applications though
the term did not exist then and the manual refers to it
as "bulb simulator". It was originally designed and implemented
by Michael Gehmair during a night when his only bulb broke while
learning for an important exam scheduled for the next day. It
has been ported to various platforms by various people.
- Jomic, an early, portable
viewer for comic book archives using CBZ or CBR as format.
It is written in Java and convinced me that I should move
to different programming languages for hobby projects.
a platform independent viewer for documents in the
hypertext format. It can also convert them to DocBook XML
for further editing on contemporary platforms.
prepares RCS projects for processing with
cvs2svn. You can also
use it as replacement for various rcs2cvs scripts floating
converts Trac tickets to
- Github issues. After I moved all
my Trac projects to GitHub, I naturally lost interest in it.
It does not work anymore, but might be useful as basis for
an updated version.
- Vahunz increases or
decreases the legibility or of source code names. It scans a
whole source code tree and collects variable and function
names in a dictionary. The user can then decide what to do
about each name: leave it untouched, assign a more meaningful
one, or let vahunz generate a random one. (License: open
source; platform independent; programming language: portable
Ancient Amiga projects
The project below were develop exclusively for
Amiga family of personal computers.
They are unmaintained and collected here purely for historic purpose.
- Sofa, a port of the SmartEiffel Eiffel compiler (now forked to
LibertyEiffel) for AmigaOS Classic.
The binary is available from
- envSOF, an Eiffel/Sofa
developer environment for GoldEd (now called
It simplifies developing Eiffel programs by adding syntax
coloring, a procedure browser and documentation browser.
- WgetRexx integrates the
recursive download tool wget
into various Amiga web browsers using ARexx. It makes it easy
to create menu items that allow to download the currently visible
page or the whole directory branch related to it.
- Orbit Amiga 68k, a port of
the Orbit space combat simulator for Amiga/68k. This was a
funny exercise in futility because it runs fine albeit too
slow to do anything really useful with it.