Hi,

If extraction of contents in inthe inner paranthesis is your only concern, try

$str = "((A AND B) OR (C AND D) NOT E)";
print "$1\n" while( $str =~ /\(([\w\s]+)\)/g);
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this may not be the best solution, but this is the first solution I have.

Cheers !

--VC

There are three sides to any argument.....
your side, my side and the right side.

Hi, This works for multiple brackets that is (((A AND B) OR (C AND D) NOT (E AND F)))? with regards Archana

Perhaps you need to take two steps back and describe the larger picture? It seems likely that you are trying to parse an expression. If that is the case then parsing out the words is the smallest part of the problem.

Hi, Yes i am parsing the expression but if many brackets are there say for eg:-(((A AND B) AND (C OR D)NOT (E AND F))) Then how do i proceed to extract the contents and search for the words?