I want to make array/hash references from scalar value. I used eval method to convert to perl structure. I Used character inside the scalar value .it will not be single quote in value field as
( $a="a,b,{perl=>monk}").So the eval method returns null value.If i use single quote in all the values.Eval will return the correct value.Why the single quote is needed inside the scalar value (my $a="'a','b',{'perl'=>'monk'}" ),already The value is with in double quotes. otherwise anyone knows any cpan modules to solve this problem.The problems is if the string found [,{,I need to change that value to hash({) or array([) references. 
     The eval is given null value.
  my $a="[a,b,{perl=>monk}]";
  my $b=eval $a;
  print Dumper($b);
      
     Following coding is working fine.
  my $a="['a','b',{'perl'=>'monk'}]";
  my $b=eval $a;
  print Dumper($b);

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In reply to How to make array references from scalar value by santhosh_89

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