Where is Rob?

Does anybody know Rob Seegel (aka RCS), the author/maintainer of Tk::MListbox?

I tried to contact the author by e-mail but didn't get any feedback so far.
I would like to adopt the module Tk::MListbox (and the other packages).

New Design for PerlTk.de

In case you do speak German, or know how to use Google Translate, you can have a look at the new shiny Design of my page PerlTk.de.

I hope you like it. Here is something to look at:


Perl/Tk Spreadsheet Editor

This is as far as I could approximate a Perl/Tk UI to Microsoft Excel. No, I don't want to create a clone of Microsoft Excel. But I was interested in how much one could lift the style of the plain old Tk. And I like the look and feel of Excel, so it was kind of inspiration for me.


Unfortunately, there is no wa…

Where is Brent?

Does anybody know Brent B. Powers, the author of (amongst others) Tk::FileDialog and Tk::Waitbox?

I tried to contact the author my e-mail but every address I tried returned an error like undeliverable or unknown user etc.

Visualizing the McNaugthon-Yamada-Glushkov Construction

Once in a while I poke in my old Perl stuff to find something interesting. Luckily, this is usually the case.

Today, I found a script that draws an annotated syntax tree of a regular expression. The annotation shows the state sets calculated when applying the McNaugthon-Yamada-Glushkov algorithm to construct a finite automaton from the regular expression.

You can read about it in "Bruce W. Watson. Taxonomies and Toolkits of Regular Language
Algorithms. PhD thesis, Faculty of Computing Science Eindhoven
University of Technology, The Netherlands, 1995".