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Re:Debuggex: visual regex tester – now with PCRE by arbus on Saturday July 06, 2013 @10:17PM (#6000775)
The RFC822 email address regex : http://www.debuggex.com/r/-Izy_lmZmdCAITvQ/0

Very pretty indeed

Re:Debuggex: visual regex tester – now with PCRE by vithlani on Sunday July 07, 2013 @08:02PM (#6004208)
Wow!

Is there a way to export this as a JPEG|PNG?

Re:Debuggex: visual regex tester – now with PCRE by tsergiu on Monday July 08, 2013 @02:38AM (#6005475)
Click "Export to StackOverflow", then you can save the image.