x $foo =~ /( (:? . | \n (?! \n\n) )+ ) /x

You have a bug: (:? should be (?:. That's what ends up as your second capturing group.

print "Just another Perl ${\(trickster and hacker)},"
The Sidhekin proves Sidhe did it!

In reply to Re: Non-capturing zero-width negative lookahead by Sidhekin
in thread Non-capturing zero-width negative lookahead by throop

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