NAME

Data::Transform::Identity - a no-op filter that passes data through unchanged

SYNOPSIS

  #!perl

  use Term::ReadKey;
  use POE qw(Wheel::ReadWrite Filter::Stream);

  POE::Session->create(
    inline_states => {
      _start => sub {
        ReadMode "ultra-raw";
        $_[HEAP]{io} = POE::Wheel::ReadWrite->new(
          InputHandle => \*STDIN,
          OutputHandle => \*STDOUT,
          InputEvent => "got_some_data",
          Filter => POE::Filter::Stream->new(),
        );
      },
      got_some_data => sub {
        $_[HEAP]{io}->put("<$_[ARG0]>");
        delete $_[HEAP]{io} if $_[ARG0] eq "\cC";
      },
      _stop => sub {
        ReadMode "restore";
        print "\n";
      },
    }
  );

  POE::Kernel->run();
  exit;

DESCRIPTION

Data::Transform::Identity passes data through unchanged. It follows Data::Transform's API and implements no new functionality.

In the "SYNOPSIS", POE::Filter::Stream is used to collect keystrokes without any interpretation and display output without any embellishments.

SEE ALSO

Data::Transform

AUTHORS & COPYRIGHTS

See Data::Transform