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  1. or download this
    $reline =~ s/\+//g;
    $reline =~ s/\[//g;
    ...
    $reline =~ s/<//g;
    $reline =~ s/>//g;
    $reline =~ s/;//g;
    
  2. or download this
    $reline =~ tr/+[]()<>*^$?\\~;//d;
    
  3. or download this
    $"=$,,$_=q>|\p4<6 8p<M/_|<('=>
    .q>.<4-KI<l|2$<6%s!<qn#F<>;$,
    .=pack'N*',"@{[unpack'C*',$_]
    }"for split/</;$_=$,,y[A-Z a-z]
             {}cd;print lc