Another way of doing this is to build a regex with a finit number of nested levels: 
my $text = 'this {{}}should be {{test {{ab{{c}}d}} zzzz}}good {{bw}}';

my $nested = 100;
my $re = '{{(?:[^{}]+|';
$re   .= $re    x ($nested);
$re   .= ')*}}' x ($nested + 1);
$text =~ s/$re//sg;

print "$text\n";

__END__|OUTPUT:
this should be good

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In reply to Re: Efficient way to match and replace nested braces (etc.) by Anonymous Monk
in thread Efficient way to match and replace nested braces (etc.) by dmn

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