Downloads
Step 1.
Install BlueJ if you haven't already done so. You can get it here. (you'll need a Java SDK installed first -see system requirement in the panel on the right side of this page).
Step 2.
Dowload the guide, which includes installation instructions:
Step 3.
Download patternCoder.
The download contains the extension binary (PatternCoder.jar), the starter set of pattern files and templates, and the source code and javadocs.
Windows/Mac version 0.5.3: patterncoder_0.5.3.zip
Linux version 0.5.3: patterncoder_0.5.3.tar.gz
see version history