$DataRead{'StringRead'} = substr($DataRead{'StringRead'}, -3);

##</code><code>##

$DataRead{'StringRead'} = substr($DataRead{'StringRead'}, 0, length($DataRead{'StringRead'}) - 2);

##</code><code>##

#!/usr/bin/perl
use strict;
use warnings;

use constant true             => 1;

use constant TAB              =>  9;
use constant LF               => 10;
use constant CR               => 13;
use constant ESC              => 27;
use constant BACKTAB          => -1;

$| = true;

use Term::HotKey;

#
# ReadFromKeyboard
#
# Read a key at Time from the Keyboard
#
# Arguments:
#
# Returns:     \%DataRead
#              'StringRead' => Characters Read
#               'ExitValue' => Character That Caused End of Read
#
# Thanks to Liverpole for the Original Version
#
sub ReadFromKeyboard
{
   my %DataRead;
   $DataRead{'StringRead'} = '';

   my $CharacterRead = '';

   while(true)
      {
      $CharacterRead = readkey();

      if($CharacterRead)
         {
         $DataRead{'StringRead'} .= $CharacterRead;
         print("\[$CharacterRead\]\[" . ord($CharacterRead) . "\]len\[" . length($CharacterRead) . "\] \[$DataRead{'StringRead'}\]\n");
         if($DataRead{'StringRead'} =~ /.*\t|\n|\r|\e\[Z|\eq$/)
            {
            if($DataRead{'StringRead'} =~ /.*\e\[Z$/)
               {
               $DataRead{'ExitValue'} = -1;
               $DataRead{'StringRead'} = substr($DataRead{'StringRead'}, -3);
               }
            elsif($DataRead{'StringRead'} =~ /.*\eq$/)
               {
               $DataRead{'ExitValue'} = 27;
               $DataRead{'StringRead'} = substr($DataRead{'StringRead'}, 0, length($DataRead{'StringRead'}) - 2);
               }
            else
               {
               $DataRead{'ExitValue'} = ord(chop($DataRead{'StringRead'}));
               }
            last();
            }
         }
      }
   return(\%DataRead);
}

# Main program
my $DataRead;
$DataRead->{'StringRead'} = '';
while(uc($DataRead->{'StringRead'}) ne 'QUIT')
   {
   $DataRead = ReadFromKeyboard();
   my $WhatIsIt;
   if($DataRead->{'ExitValue'} == TAB)
      {
      $WhatIsIt = 'TAB';
      }
   elsif($DataRead->{'ExitValue'} == LF)
      {
      $WhatIsIt = 'LF';
      }
   elsif($DataRead->{'ExitValue'} == CR)
      {
      $WhatIsIt = 'CR';
      }
   elsif($DataRead->{'ExitValue'} == ESC)
      {
      $WhatIsIt = 'ESC';
      }
   elsif($DataRead->{'ExitValue'} == BACKTAB)
      {
      $WhatIsIt = 'BACKTAB';
      }
   else
      {
      $WhatIsIt = 'IDK';
      }
   print("You Entered: \[$DataRead->{'StringRead'}\]\[" . length($DataRead->{'StringRead'}) . "\]\nYou Ended with a \[$WhatIsIt\]\[$DataRead->{'ExitValue'}\]\n");
   }
__END__