here's some more http://www.fileformat.info/tool/regex.htm http://www.fileformat.info/tool/regex.htm http://www.rexv.org/ http://www.rexv.org/ http://www.txt

here's some more http://www.fileformat.info/tool/regex.htm http://www.fileformat.info/tool/regex.htm http://www.rexv.org/ http://www.rexv.org/ http://www.txt2re.com/ http://www.txt2re.com/ (this one's particularly good for your next acid session) http://brosinski.com/regex/ http://brosinski.com/regex/ for eclipse http://www.weitz.de/regex-coach/ http://www.weitz.de/regex-coach/ http://regex.larsolavtorvik.com/ http://regex.larsolavtorvik.com/ http://www.regexbuddy.com/ http://www.regexbuddy.com/ (this one costs a few $) http://www.regextester.com/ http://www.regextester.com/ (... and the one in activestate Komodo. i don't use any o these, i have my Friedl book and i try to understand the edge and cornder cases, build a test suite)