I think instead of this:

next if $token->[1] ne 'meta' && $token->[0] ne 'S';
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you meant:

next if $token[0] ne 'S' || $token[1] ne 'meta';
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Note the order of evaluation and the || instead of &&

But it might be even clearer if you say:

if ($token->[0] eq 'S' && $token->[1] eq 'meta' && $token->[2]{name}) 
+{
  $meta{$token->[2]{name}} = $token->[2]{content};
}
[download]