Given data like "a[b[c[d]]" the following regex matches the inner-most [d]. I'd like suggestions on how I can match the outermost [c[d]]. I feel like there's something simple I'm missing but ... well, I'm missing it.

my $re;
$re = qr/
    \[ # Opening bracket
    ( # Capture the contents
        [^][]+ # Body of a link
        |
        (??{$re}) # Or recurse
    )
    \] # Closing bracket
    /x;

$k = "a[b[c[d]]";
$k =~ s/$re/<$1>/g;
print $k;

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In reply to Maximal match in a recursive regex by diotalevi

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