Thanks for posting your solution to this -- I've managed OK with regexps, but your post encouraged me to get a little more familiar with how lookaround assertions work. I'm going to document the regexp you've provided in order to show that I believe the instructions are still incorrect (see also my post here where I list all of the possible legal patterns that I think exist).

<Reveal this spoiler or all in this thread>

Alex / talexb / Toronto

Thanks PJ. We owe you so much. Groklaw -- RIP -- 2003 to 2013.

In reply to Re^3: perl look ahead regular expression that is optional? by talexb
in thread perl look ahead regular expression that is optional? by bigsipper

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