Can anyone tell me how I would capture a non-printable character from STDIN and test what the character is? Specifically, I want to test if the escape key has been pressed.

See Term::ReadKey:

use warnings;
use strict;
use Term::ReadKey qw/ReadMode ReadKey/;
use Data::Dumper;
$Data::Dumper::Useqq=1;

print "Press a key\n";
ReadMode 'cbreak';
my $key = ReadKey(0);
ReadMode 'restore';

print Dumper($key);
if ( $key eq "\e" ) {
    print "Escape pressed\n";
}

[download]
Trying to build a console based text editor.

Beware of reinventing the wheel, but anyway, see Curses and perhaps Curses::UI (though the latter is pretty old by now).

In reply to Re: Capture a non-printable char and test what it is by haukex
in thread Capture a non-printable char and test what it is by almsdealer

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