jrexx-Lab is implemented in 100% pure Java and requires the
Java 2 Plattform Standard Edition
(J2SE) version 1.4.x preinstalled on the target computer.
Since it is a graphical editor, the minimum screen resolution is 800x600 pixels.
jrexx-Lab requires at least 64 MB RAM and 3 MB free disk space.
For a quick start with the application simply start it and create a predefined
automaton by choosing it from the Create-from-Favorite dialog box. Later you
can extends the list with your own automatons, if you like.
The created automaton graph will be visible in it's own tab.
If you want you can do some set operations like unify or intersect with two
automatons with the menu items located in the 'edit' menu. Just choose an other
automaton from the Perform-A-Set-Operation dialog box and see the result
replacing your original automaton.
Finally you can test the regular expression by typing some input text into the
tester panel beneath the graph view followed by subsequent Enter keystrokes.
You will see that the automaton highlights some states, when the leading
character could be processed successully. Navigate the processing history
forward and backward by pressing 'Next' and 'Back'. Hit 'Reset' to begin the
test again.
That's it, essentially :-)
Here you can find some animated GIF slideshows that demonstrate some basic features of jrexx-Lab. Make sure that your browser and your web filter allow animated GIFs.