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  $a_test="1";
  $b_test="the RTE";

  $start=1;
  while (index($text,'$',$start) > 0)
  {
...
   $start = $blank += 1;
   print " result: ${(substr($w,1,length($w)-1))}\n";
  }

  ${(substr($text,0,4))}=substr($text,5,length($text)-5);
  print " output: $titl\n";