I wish I’d known about retest when I posted about regular expressions recently. It’s a great little utility from Christof Hoeke that uses Python’s
re module and SimpleHTTPServer power to give you an interactive regex tester right in your web browser. He says he’s only tested it on Windows XP, but it worked great for me on OS X 10.4.3.
Brendon commented on Sun Feb 18 18:29:06 2007:
Another good Regular Expression tester to check out is ReJax: