# attempt 2

   $n=~s/\(/\\(/g;    ## << this works ok!
   $n=~s/\)/\\)/g;
   $n=~s/\'/\\'/g;    ## << same method, NO WORK!</font>

   if ($tmp=~/^$n\t$v$/) {
	$tmp=~s/^$n\t$v$/$n\t$v\t$ctr/;
        $gctr++;
   }