Eclipse Regular Expression Plugin
I was looking for an Eclipse plugin and found QuickREx . Very nice little plugin, and it comes with some other tools, like an XPath evaluator, multiple entry clipboard, and some HTML editing tools. The regular expression tester is nice as it can evaluate regular expressions using various expression engines, including Java, Perl, etc.
To install QuickREx, use the update feature in Eclipse as normal, using the following remote site URL:
http://www.bastian-bergerhoff.com/eclipse/features/
Instructions for using all of the tools can be found at that same URL.
