VerbalExpressions.AS3 is a ActionScript 3 port of a VerbalExpressions library that helps to construct difficult regular expressions.
You can see an up to date list of all ports on VerbalExpressions.github.io.
If you would like to contribute another port (which would be awesome!), please open an issue specifying the language. A repo in the VerbalExpressions organization will be created for it. Please don't open PRs for other languages against this repo.
You can find the API documentation at the wiki pages.