You want to parse out the meta tags of a document and display them in a certain order?
# Warning: These are _crappy_ regexes and I haven't run this
($description) =
$document =~
/<meta\s+name=['"]description['"]content['"]([^'"]+)['"]/;
($posted) =
$document =~
/<meta\s+name=['"]posted['"]\s+content['"]([^'"]+)['"]/;
print "$description, $posted\n";
But much, much better is HTML::HeadParser. I think it does exactly what you're after (actually - it does exactly what I think you're after :) It's a lightweight HTML parser that just does the head of a document.
I'm not sure what what your %triplets is for - have you already extracted the data and simply want to test for its presence?
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