With the help of "man perlre" it is easy. Just steal the "match parenthesized group" snippet, and use it as an alternative in the match you want. 
$abc = "abc,xyz,{1,2,3,4},18-90-89,{{1,2},{5,6,7,8}},yts";

$par=qr! \{ (?: [^{}]+ | (??{ $par }) )+ \} !x;

@a= $abc=~ /([^{,]+|$par)/g;

print join("\n",@a);

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In reply to Re: urgent perl regexp help needed by Sec
in thread urgent perl regexp help needed by karthikpa

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