Pretty cool, I like the automata diagram of the expression. Here's another one http://ocpsoft.org/tutorials/regular-expressions/java-visual-regex-tester/ http:

Pretty cool, I like the automata diagram of the expression. Here's another one http://ocpsoft.org/tutorials/regular-expressions/java-visual-regex-tester/ http://ocpsoft.org/tutorials/regular-expressions/java-visual... Done with GWT and Errai, source here: https://github.com/ocpsoft/regex-tester/tree/master/src/main/java/org/ocpsoft/tutorial/regex https://github.com/ocpsoft/regex-tester/tree/master/src/main...