The new version just fixes some minor GUI bugs and uses now the mailto: action for user feedback.
jrexx-Lab 1.3.0 can be web started at our demo page.

You can find the first 3 tutorials on jrexx-Lab at the jrexx-Lab documentation page.

I proudly announce that the guys from Sun's Swing Connection have included jrexx-Lab on their Swing Sigthings Volume 16. Celebration!

The users of jrexx-Lab now can participate in improving this software, since I have included a user feedback form that is accessible from the 'help' menu. With that you can submit feature requests or bug reports directly to our bug tracker, where I can find them. The feedback from is also reachable from the error dialogs.
jrexx-Lab 1.2.0 can be web started at our demo page.

This version is another bug fix release. jrexx-Lab 1.1.3 can be web started at our demo page.

This version is a minor bug fix release. jrexx-Lab 1.1.2 can be web started at our demo page.

The new version 1.1.1 of jrexx-Lab is available at the demo page. There have been some bug fixes at the user interface - and if anybody experienced strange results when doing set operations, here is the explanation: jrexx-Lab executed the set operation twice! Now everything works fine. Also there is some good news for MacOS X users: Zooming is now working, at least for jdk1.4.

We had a few days downtime since we moved our site to another provider and had missed the correct login infos. Now everything should work again. Also we have the new version 1.1.1 of jrexx (actually this version is there for more than two weeks, but we didn't post it here) which is a bug fix release. You can download it here.

Ralf has just finished the 1.1 version of jrexx. You can download it here. Besides some API deprecations the automaton now is serializable and there is also jrexxLite, a really small subset (23kb!!!) of jrexx, which is nothing more than a pattern matching class that works with a serialized automaton (see documentation).
Also very fresh is jrexx-Lab 1.1, which now untangles the automaton graph better. You can start the Java Webstart application here.

Since the traffic of this site increased enormously the last days, we have moved the JAR files of the jrexx-Lab to another site that allows more traffic. The new JNLP file knows about the new location and Java Webstart will load the files from there next time you are launching jrexx-Lab. Many thanks to Max Thelen who provides that webspace for us.

Ralf is working on the new release jrexx 1.1 and hopes it will be ready by the end of this month.
With jrexx1.1 you will be able to load and save automatons, because Ralf introduced a simple representation of the automaton (a kind of value object) that is serializable and will be "XML-able" in future. This representation should be the fundament for the interchange of automatons between different apps/tools. For example, jrexx-Lab's 'load' and 'safe' functionality works with this simple representation object. So you can visualize and test automatons with jrexx-Lab even if the representations have not been built with the jrexx API.
Please note, that the CVS version of jrexx, which is used inside jrexx-Lab, is not stable in terms of its API interface yet, including the data objects, so don't base your code on it.

Finally we managed it and released the first version of jrexx-Lab!
jrexx-Lab is our laboratory for regular expression analysis. It's equipped with a graphical editor that displays regular expressions as automaton graphs. You can run it right from the demo page with Java Webstart.

The first application that is build upon jrexx will be jrexx-lab, the laboratory for regular expression analysis.
This is an almost stable but not yet released SWING based graphical editor for jrexx automatons with the following features

• creation and editing of regular expressions (based on jrexx regex strings)
• graphical representation of regular expressions as finite state automaton graphs
• testing environment for checking stepwise processing of input strings
• set operations on regular expressions (unify, intersect, substract, complement)
• minimizing of regular expressions
• interactive manipulation of the automaton through java code evaluation
• interactive layout manipulation of the automaton graph (move, scroll, zoom)
• usage of simple 'relax' alogrithm to untangle the automaton graph
• printing and
• SVG export of the automaton graph

I have spent some hours to create two demo applets that make use of Ralf's jrexx api. You can find the applets in the demo section of the jrexx project.

Thanks to Andreas Späth we now have a really nice web page.

jrexx is online and we have published our first release at sourceforge.