This is great. I should have put in the post that there can be an unlimited number of titles, as long as there is one. I'm trying to modify it to allow that: 
print "$_: ", m[^\w+(?:\.\w+)?$] ? "matched\n" : "failed\n"
    for qw[ one one.two one.two.three four.five.six.seven one. one-two
+ ];

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In reply to Re^2: Match Optional Groups with 1 Required Group by rem45acp
in thread Match Optional Groups with 1 Required Group by rem45acp

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