Thanks. I see the error of my ways. What I wanted was to capture the pieces as long as there were no intervening <p> tags in between. Stupid me was thinking the lookahead assertion checked if the expression was anywhere in between, whereas I had specified immediately following. Expanding the lookahead expression to a more compreshensive match was the key. I ended up using this regex to do the match: 

($test =~ /(<p> )(?!.*<p>.*)(.+)(features\: <ul>)/i)

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In reply to Re: Lookahead assertion confusion by steves
in thread Lookahead assertion confusion by steves

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