Two suggestions based on discussion from CB: 

while ($string =~ qr(...)) {
    $string = qq($1'$2);
}

[download]

and

$string = join('_',
    map {
          ( $_ && ( $_ !~ qr(') ) )
        ? qq('$_)
        : $_
    } split( q{_}, $string )
);

[download]

The first, I think, is O(N^2), and the second is O(N), so depending on string size, data set size, etc, the choice might make a difference.

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In reply to Re: Modifying the match position after each match by MidLifeXis
in thread Modifying the match position after each match by pat_mc

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