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Perlfunc: confirm2005-10-20

sub confirm() {
	my $yes_default = shift();
	my $display_text = shift();

	my $yes = "y";
	my $no = "n";

	if ($yes_default) { $yes = uc($yes); }
	else { $no = uc($no); }

	$display_text ||= "Confirm";

	print "$display_text ($yes/$no): ";
	chomp(my $confirm = <STDIN>);

	if (!$confirm) { return $yes_default; }
	elsif ($confirm =~ /^y/i) { return 1; }
	else { return 0; }
}