From: Phil Cooper-king Date: 2009-09-07T18:07:24+09:00 Subject: regular expression NOT operator Regex is something I've managed to ignore for some time, only learning bits when needed. I'm trying to do code highlighting, so I've been using Reg to find parts of the code I've run into an issue with comments # A comment can contain control statements like if and Constants things like if and a Constant get picked up by my reg, I'm trying to put a not operator in my regex but cant seem to get it to work. so for constants I search /([A-Z].*?\b)/ how can I add "when theres no # on the left"? I've been trying to use the ?! as the not operator. (is that even a not operator) this is what i've been trying /([A-Z].*?\b)(?!)/ anyhelp would be greatly appreated. thanks Phil. -- Posted via http://www.ruby-forum.com/.