RegexCoach
Java Regular Expression Helper
Utility for creating, testing, and debugging Java Regular Expressions in real time with visual feedback.
To run:
java -jar RegexCoach.jar
Inspired by http://www.weitz.de/regex-coach/
and based on https://raw.github.com/edalquist/RegexCoach/master/RegexCoach.groovy
and based on http://svn.codehaus.org/groovy/tags/GROOVY_1_7_6/src/examples/swing/RegexCoach.groovy