Stefaan Lippens inserts content here

Two days. Two days I'm working to find a bloody number. First I tried with brute force searching. But because that appeared not very feasible, I had to think of a more clever way to find it. Which I did. No brute force exhaustive search, just some matrix multiplication stuff …

It's possible to make Subversion ignore unversioned files, so they don't show up in the status overview and you get a better signal to noise ratio. The command line interface to add ignore rules this is however a bit clunky. First, you need to remember following command:

svn propedit svn …

I needed the LaTeX code for the sign that is called the "promille" sign in Dutch. It's the sign like the percent sign "%" ("procent" in Dutch), but with two circles at the bottom. Googling for "latex promille" was not very successful, so I thought this would be a good botsnack …

Yesterday I had to render a 3d animation for a colleague working on 3D television. He needed a short street-view video with depth map. Because there were some problems with some real world footage he wanted to use, he asked me to create an artificial video in Blender. After I …

Drupal didn't work out of the box and gave the following white screen of death:

500 Internal Server Error
The server encountered an internal error or misconfiguration and was unable to complete your request.

After some research I found out that One.com hosting didn't like Drupal's default .htaccess file …

Parsing a subversion Id keyword is just a matter of some regular expression magic:

# use the built in regular expression library
import re

# the subversion Id keyword
svnid = '$Id: svnidparse.py 1234 2008-02-19 09:59:27Z joske $'

# bow for the mighty regular expression
svnidrep = r'^\$Id: (?P<filename>.+) (?P<revision …

It's official now: I'm joining Krimson on their trip to DrupalCon Boston 2008!

Not more than a month ago, the nice people of Krimson offered to fund the trip and stay at DrupalCon Boston for someone from the Belgian/European Drupal community. At first I didn't really consider filling in …

I mostly use LaTeX for writing documents (LyX actually, but that doesn't matter here) and use Subversion for version control. For managing the revision info of a source code file I use Subversion's built in feature Keyword Substitution which expands some special keyword (like $Date$ or $Revision$) in the source …

Captions of floats (figures and tables) in LaTeX are by default typeset the same way as the body text. For better readability it could be appropriate to use a different font, font size or margin for the captions. This is possible with the LaTeX package caption.

For example, with the …

When you want to extract a bitmap image from a PDF document, it is tempting to do the "print screen" trick. The drawback of this approach is that you'll inevitably lose quality: the image pixels will typically not map to your screen's pixels in a one to one fashion because …