Okay, just when I feel like a Perl-meister, I get stumped by this seemingly innocent regex match that uses a lookahead assertion: 

use strict;

my $test = '<p> ONE <p> TWO features: <ul> THREE';

my ($first, $second, $third) = ($test =~ /(<p> )(.+(?!<p>))(features\:
+ <ul>)/i);

print "1: $first\n";
print "2: $second\n";
print "3: $third\n";

[download]

Output is: 

1: <p>
2: ONE <p> TWO
3: features: <ul>

[download]

I was expecting only TWO for the second match since there's an intervening <P>. Some monk please humble me here.

In reply to Lookahead assertion confusion by steves

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
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